diff --git a/screenshot/ext.manifest b/screenshot/ext.manifest deleted file mode 100755 index 4113be9..0000000 --- a/screenshot/ext.manifest +++ /dev/null @@ -1 +0,0 @@ -name: "Screenshot" diff --git a/screenshot/include/GLES2/gl2.h b/screenshot/include/GLES2/gl2.h deleted file mode 100755 index b20aa42..0000000 --- a/screenshot/include/GLES2/gl2.h +++ /dev/null @@ -1,675 +0,0 @@ -#ifndef __gl2_h_ -#define __gl2_h_ 1 - -#ifdef __cplusplus -extern "C" { -#endif - -/* -** Copyright (c) 2013-2017 The Khronos Group Inc. -** -** Permission is hereby granted, free of charge, to any person obtaining a -** copy of this software and/or associated documentation files (the -** "Materials"), to deal in the Materials without restriction, including -** without limitation the rights to use, copy, modify, merge, publish, -** distribute, sublicense, and/or sell copies of the Materials, and to -** permit persons to whom the Materials are furnished to do so, subject to -** the following conditions: -** -** The above copyright notice and this permission notice shall be included -** in all copies or substantial portions of the Materials. -** -** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. -*/ -/* -** This header is generated from the Khronos OpenGL / OpenGL ES XML -** API Registry. The current version of the Registry, generator scripts -** used to make the header, and the header can be found at -** https://github.com/KhronosGroup/OpenGL-Registry -*/ - -#include - -#ifndef GL_APIENTRYP -#define GL_APIENTRYP GL_APIENTRY* -#endif - -#ifndef GL_GLES_PROTOTYPES -#define GL_GLES_PROTOTYPES 1 -#endif - -/* Generated on date 20170209 */ - -/* Generated C header for: - * API: gles2 - * Profile: common - * Versions considered: 2\.[0-9] - * Versions emitted: .* - * Default extensions included: None - * Additional extensions included: _nomatch_^ - * Extensions removed: _nomatch_^ - */ - -#ifndef GL_ES_VERSION_2_0 -#define GL_ES_VERSION_2_0 1 -#include -typedef khronos_int8_t GLbyte; -typedef khronos_float_t GLclampf; -typedef khronos_int32_t GLfixed; -typedef short GLshort; -typedef unsigned short GLushort; -typedef void GLvoid; -typedef struct __GLsync *GLsync; -typedef khronos_int64_t GLint64; -typedef khronos_uint64_t GLuint64; -typedef unsigned int GLenum; -typedef unsigned int GLuint; -typedef char GLchar; -typedef khronos_float_t GLfloat; -typedef khronos_ssize_t GLsizeiptr; -typedef khronos_intptr_t GLintptr; -typedef unsigned int GLbitfield; -typedef int GLint; -typedef unsigned char GLboolean; -typedef int GLsizei; -typedef khronos_uint8_t GLubyte; -#define GL_DEPTH_BUFFER_BIT 0x00000100 -#define GL_STENCIL_BUFFER_BIT 0x00000400 -#define GL_COLOR_BUFFER_BIT 0x00004000 -#define GL_FALSE 0 -#define GL_TRUE 1 -#define GL_POINTS 0x0000 -#define GL_LINES 0x0001 -#define GL_LINE_LOOP 0x0002 -#define GL_LINE_STRIP 0x0003 -#define GL_TRIANGLES 0x0004 -#define GL_TRIANGLE_STRIP 0x0005 -#define GL_TRIANGLE_FAN 0x0006 -#define GL_ZERO 0 -#define GL_ONE 1 -#define GL_SRC_COLOR 0x0300 -#define GL_ONE_MINUS_SRC_COLOR 0x0301 -#define GL_SRC_ALPHA 0x0302 -#define GL_ONE_MINUS_SRC_ALPHA 0x0303 -#define GL_DST_ALPHA 0x0304 -#define GL_ONE_MINUS_DST_ALPHA 0x0305 -#define GL_DST_COLOR 0x0306 -#define GL_ONE_MINUS_DST_COLOR 0x0307 -#define GL_SRC_ALPHA_SATURATE 0x0308 -#define GL_FUNC_ADD 0x8006 -#define GL_BLEND_EQUATION 0x8009 -#define GL_BLEND_EQUATION_RGB 0x8009 -#define GL_BLEND_EQUATION_ALPHA 0x883D -#define GL_FUNC_SUBTRACT 0x800A -#define GL_FUNC_REVERSE_SUBTRACT 0x800B -#define GL_BLEND_DST_RGB 0x80C8 -#define GL_BLEND_SRC_RGB 0x80C9 -#define GL_BLEND_DST_ALPHA 0x80CA -#define GL_BLEND_SRC_ALPHA 0x80CB -#define GL_CONSTANT_COLOR 0x8001 -#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002 -#define GL_CONSTANT_ALPHA 0x8003 -#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004 -#define GL_BLEND_COLOR 0x8005 -#define GL_ARRAY_BUFFER 0x8892 -#define GL_ELEMENT_ARRAY_BUFFER 0x8893 -#define GL_ARRAY_BUFFER_BINDING 0x8894 -#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895 -#define GL_STREAM_DRAW 0x88E0 -#define GL_STATIC_DRAW 0x88E4 -#define GL_DYNAMIC_DRAW 0x88E8 -#define GL_BUFFER_SIZE 0x8764 -#define GL_BUFFER_USAGE 0x8765 -#define GL_CURRENT_VERTEX_ATTRIB 0x8626 -#define GL_FRONT 0x0404 -#define GL_BACK 0x0405 -#define GL_FRONT_AND_BACK 0x0408 -#define GL_TEXTURE_2D 0x0DE1 -#define GL_CULL_FACE 0x0B44 -#define GL_BLEND 0x0BE2 -#define GL_DITHER 0x0BD0 -#define GL_STENCIL_TEST 0x0B90 -#define GL_DEPTH_TEST 0x0B71 -#define GL_SCISSOR_TEST 0x0C11 -#define GL_POLYGON_OFFSET_FILL 0x8037 -#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E -#define GL_SAMPLE_COVERAGE 0x80A0 -#define GL_NO_ERROR 0 -#define GL_INVALID_ENUM 0x0500 -#define GL_INVALID_VALUE 0x0501 -#define GL_INVALID_OPERATION 0x0502 -#define GL_OUT_OF_MEMORY 0x0505 -#define GL_CW 0x0900 -#define GL_CCW 0x0901 -#define GL_LINE_WIDTH 0x0B21 -#define GL_ALIASED_POINT_SIZE_RANGE 0x846D -#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E -#define GL_CULL_FACE_MODE 0x0B45 -#define GL_FRONT_FACE 0x0B46 -#define GL_DEPTH_RANGE 0x0B70 -#define GL_DEPTH_WRITEMASK 0x0B72 -#define GL_DEPTH_CLEAR_VALUE 0x0B73 -#define GL_DEPTH_FUNC 0x0B74 -#define GL_STENCIL_CLEAR_VALUE 0x0B91 -#define GL_STENCIL_FUNC 0x0B92 -#define GL_STENCIL_FAIL 0x0B94 -#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95 -#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96 -#define GL_STENCIL_REF 0x0B97 -#define GL_STENCIL_VALUE_MASK 0x0B93 -#define GL_STENCIL_WRITEMASK 0x0B98 -#define GL_STENCIL_BACK_FUNC 0x8800 -#define GL_STENCIL_BACK_FAIL 0x8801 -#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802 -#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803 -#define GL_STENCIL_BACK_REF 0x8CA3 -#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4 -#define GL_STENCIL_BACK_WRITEMASK 0x8CA5 -#define GL_VIEWPORT 0x0BA2 -#define GL_SCISSOR_BOX 0x0C10 -#define GL_COLOR_CLEAR_VALUE 0x0C22 -#define GL_COLOR_WRITEMASK 0x0C23 -#define GL_UNPACK_ALIGNMENT 0x0CF5 -#define GL_PACK_ALIGNMENT 0x0D05 -#define GL_MAX_TEXTURE_SIZE 0x0D33 -#define GL_MAX_VIEWPORT_DIMS 0x0D3A -#define GL_SUBPIXEL_BITS 0x0D50 -#define GL_RED_BITS 0x0D52 -#define GL_GREEN_BITS 0x0D53 -#define GL_BLUE_BITS 0x0D54 -#define GL_ALPHA_BITS 0x0D55 -#define GL_DEPTH_BITS 0x0D56 -#define GL_STENCIL_BITS 0x0D57 -#define GL_POLYGON_OFFSET_UNITS 0x2A00 -#define GL_POLYGON_OFFSET_FACTOR 0x8038 -#define GL_TEXTURE_BINDING_2D 0x8069 -#define GL_SAMPLE_BUFFERS 0x80A8 -#define GL_SAMPLES 0x80A9 -#define GL_SAMPLE_COVERAGE_VALUE 0x80AA -#define GL_SAMPLE_COVERAGE_INVERT 0x80AB -#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2 -#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3 -#define GL_DONT_CARE 0x1100 -#define GL_FASTEST 0x1101 -#define GL_NICEST 0x1102 -#define GL_GENERATE_MIPMAP_HINT 0x8192 -#define GL_BYTE 0x1400 -#define GL_UNSIGNED_BYTE 0x1401 -#define GL_SHORT 0x1402 -#define GL_UNSIGNED_SHORT 0x1403 -#define GL_INT 0x1404 -#define GL_UNSIGNED_INT 0x1405 -#define GL_FLOAT 0x1406 -#define GL_FIXED 0x140C -#define GL_DEPTH_COMPONENT 0x1902 -#define GL_ALPHA 0x1906 -#define GL_RGB 0x1907 -#define GL_RGBA 0x1908 -#define GL_LUMINANCE 0x1909 -#define GL_LUMINANCE_ALPHA 0x190A -#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 -#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 -#define GL_UNSIGNED_SHORT_5_6_5 0x8363 -#define GL_FRAGMENT_SHADER 0x8B30 -#define GL_VERTEX_SHADER 0x8B31 -#define GL_MAX_VERTEX_ATTRIBS 0x8869 -#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB -#define GL_MAX_VARYING_VECTORS 0x8DFC -#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D -#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C -#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872 -#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD -#define GL_SHADER_TYPE 0x8B4F -#define GL_DELETE_STATUS 0x8B80 -#define GL_LINK_STATUS 0x8B82 -#define GL_VALIDATE_STATUS 0x8B83 -#define GL_ATTACHED_SHADERS 0x8B85 -#define GL_ACTIVE_UNIFORMS 0x8B86 -#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87 -#define GL_ACTIVE_ATTRIBUTES 0x8B89 -#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A -#define GL_SHADING_LANGUAGE_VERSION 0x8B8C -#define GL_CURRENT_PROGRAM 0x8B8D -#define GL_NEVER 0x0200 -#define GL_LESS 0x0201 -#define GL_EQUAL 0x0202 -#define GL_LEQUAL 0x0203 -#define GL_GREATER 0x0204 -#define GL_NOTEQUAL 0x0205 -#define GL_GEQUAL 0x0206 -#define GL_ALWAYS 0x0207 -#define GL_KEEP 0x1E00 -#define GL_REPLACE 0x1E01 -#define GL_INCR 0x1E02 -#define GL_DECR 0x1E03 -#define GL_INVERT 0x150A -#define GL_INCR_WRAP 0x8507 -#define GL_DECR_WRAP 0x8508 -#define GL_VENDOR 0x1F00 -#define GL_RENDERER 0x1F01 -#define GL_VERSION 0x1F02 -#define GL_EXTENSIONS 0x1F03 -#define GL_NEAREST 0x2600 -#define GL_LINEAR 0x2601 -#define GL_NEAREST_MIPMAP_NEAREST 0x2700 -#define GL_LINEAR_MIPMAP_NEAREST 0x2701 -#define GL_NEAREST_MIPMAP_LINEAR 0x2702 -#define GL_LINEAR_MIPMAP_LINEAR 0x2703 -#define GL_TEXTURE_MAG_FILTER 0x2800 -#define GL_TEXTURE_MIN_FILTER 0x2801 -#define GL_TEXTURE_WRAP_S 0x2802 -#define GL_TEXTURE_WRAP_T 0x2803 -#define GL_TEXTURE 0x1702 -#define GL_TEXTURE_CUBE_MAP 0x8513 -#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514 -#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 -#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 -#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 -#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 -#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 -#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A -#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C -#define GL_TEXTURE0 0x84C0 -#define GL_TEXTURE1 0x84C1 -#define GL_TEXTURE2 0x84C2 -#define GL_TEXTURE3 0x84C3 -#define GL_TEXTURE4 0x84C4 -#define GL_TEXTURE5 0x84C5 -#define GL_TEXTURE6 0x84C6 -#define GL_TEXTURE7 0x84C7 -#define GL_TEXTURE8 0x84C8 -#define GL_TEXTURE9 0x84C9 -#define GL_TEXTURE10 0x84CA -#define GL_TEXTURE11 0x84CB -#define GL_TEXTURE12 0x84CC -#define GL_TEXTURE13 0x84CD -#define GL_TEXTURE14 0x84CE -#define GL_TEXTURE15 0x84CF -#define GL_TEXTURE16 0x84D0 -#define GL_TEXTURE17 0x84D1 -#define GL_TEXTURE18 0x84D2 -#define GL_TEXTURE19 0x84D3 -#define GL_TEXTURE20 0x84D4 -#define GL_TEXTURE21 0x84D5 -#define GL_TEXTURE22 0x84D6 -#define GL_TEXTURE23 0x84D7 -#define GL_TEXTURE24 0x84D8 -#define GL_TEXTURE25 0x84D9 -#define GL_TEXTURE26 0x84DA -#define GL_TEXTURE27 0x84DB -#define GL_TEXTURE28 0x84DC -#define GL_TEXTURE29 0x84DD -#define GL_TEXTURE30 0x84DE -#define GL_TEXTURE31 0x84DF -#define GL_ACTIVE_TEXTURE 0x84E0 -#define GL_REPEAT 0x2901 -#define GL_CLAMP_TO_EDGE 0x812F -#define GL_MIRRORED_REPEAT 0x8370 -#define GL_FLOAT_VEC2 0x8B50 -#define GL_FLOAT_VEC3 0x8B51 -#define GL_FLOAT_VEC4 0x8B52 -#define GL_INT_VEC2 0x8B53 -#define GL_INT_VEC3 0x8B54 -#define GL_INT_VEC4 0x8B55 -#define GL_BOOL 0x8B56 -#define GL_BOOL_VEC2 0x8B57 -#define GL_BOOL_VEC3 0x8B58 -#define GL_BOOL_VEC4 0x8B59 -#define GL_FLOAT_MAT2 0x8B5A -#define GL_FLOAT_MAT3 0x8B5B -#define GL_FLOAT_MAT4 0x8B5C -#define GL_SAMPLER_2D 0x8B5E -#define GL_SAMPLER_CUBE 0x8B60 -#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622 -#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623 -#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624 -#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625 -#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A -#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645 -#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F -#define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A -#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B -#define GL_COMPILE_STATUS 0x8B81 -#define GL_INFO_LOG_LENGTH 0x8B84 -#define GL_SHADER_SOURCE_LENGTH 0x8B88 -#define GL_SHADER_COMPILER 0x8DFA -#define GL_SHADER_BINARY_FORMATS 0x8DF8 -#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9 -#define GL_LOW_FLOAT 0x8DF0 -#define GL_MEDIUM_FLOAT 0x8DF1 -#define GL_HIGH_FLOAT 0x8DF2 -#define GL_LOW_INT 0x8DF3 -#define GL_MEDIUM_INT 0x8DF4 -#define GL_HIGH_INT 0x8DF5 -#define GL_FRAMEBUFFER 0x8D40 -#define GL_RENDERBUFFER 0x8D41 -#define GL_RGBA4 0x8056 -#define GL_RGB5_A1 0x8057 -#define GL_RGB565 0x8D62 -#define GL_DEPTH_COMPONENT16 0x81A5 -#define GL_STENCIL_INDEX8 0x8D48 -#define GL_RENDERBUFFER_WIDTH 0x8D42 -#define GL_RENDERBUFFER_HEIGHT 0x8D43 -#define GL_RENDERBUFFER_INTERNAL_FORMAT 0x8D44 -#define GL_RENDERBUFFER_RED_SIZE 0x8D50 -#define GL_RENDERBUFFER_GREEN_SIZE 0x8D51 -#define GL_RENDERBUFFER_BLUE_SIZE 0x8D52 -#define GL_RENDERBUFFER_ALPHA_SIZE 0x8D53 -#define GL_RENDERBUFFER_DEPTH_SIZE 0x8D54 -#define GL_RENDERBUFFER_STENCIL_SIZE 0x8D55 -#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE 0x8CD0 -#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 0x8CD1 -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL 0x8CD2 -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3 -#define GL_COLOR_ATTACHMENT0 0x8CE0 -#define GL_DEPTH_ATTACHMENT 0x8D00 -#define GL_STENCIL_ATTACHMENT 0x8D20 -#define GL_NONE 0 -#define GL_FRAMEBUFFER_COMPLETE 0x8CD5 -#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT 0x8CD6 -#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7 -#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS 0x8CD9 -#define GL_FRAMEBUFFER_UNSUPPORTED 0x8CDD -#define GL_FRAMEBUFFER_BINDING 0x8CA6 -#define GL_RENDERBUFFER_BINDING 0x8CA7 -#define GL_MAX_RENDERBUFFER_SIZE 0x84E8 -#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506 -typedef void (GL_APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture); -typedef void (GL_APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader); -typedef void (GL_APIENTRYP PFNGLBINDATTRIBLOCATIONPROC) (GLuint program, GLuint index, const GLchar *name); -typedef void (GL_APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer); -typedef void (GL_APIENTRYP PFNGLBINDFRAMEBUFFERPROC) (GLenum target, GLuint framebuffer); -typedef void (GL_APIENTRYP PFNGLBINDRENDERBUFFERPROC) (GLenum target, GLuint renderbuffer); -typedef void (GL_APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture); -typedef void (GL_APIENTRYP PFNGLBLENDCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCPROC) (GLenum sfactor, GLenum dfactor); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); -typedef void (GL_APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage); -typedef void (GL_APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); -typedef GLenum (GL_APIENTRYP PFNGLCHECKFRAMEBUFFERSTATUSPROC) (GLenum target); -typedef void (GL_APIENTRYP PFNGLCLEARPROC) (GLbitfield mask); -typedef void (GL_APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); -typedef void (GL_APIENTRYP PFNGLCLEARDEPTHFPROC) (GLfloat d); -typedef void (GL_APIENTRYP PFNGLCLEARSTENCILPROC) (GLint s); -typedef void (GL_APIENTRYP PFNGLCOLORMASKPROC) (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); -typedef void (GL_APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader); -typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXIMAGE2DPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data); -typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); -typedef void (GL_APIENTRYP PFNGLCOPYTEXIMAGE2DPROC) (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); -typedef void (GL_APIENTRYP PFNGLCOPYTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); -typedef GLuint (GL_APIENTRYP PFNGLCREATEPROGRAMPROC) (void); -typedef GLuint (GL_APIENTRYP PFNGLCREATESHADERPROC) (GLenum type); -typedef void (GL_APIENTRYP PFNGLCULLFACEPROC) (GLenum mode); -typedef void (GL_APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers); -typedef void (GL_APIENTRYP PFNGLDELETEFRAMEBUFFERSPROC) (GLsizei n, const GLuint *framebuffers); -typedef void (GL_APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program); -typedef void (GL_APIENTRYP PFNGLDELETERENDERBUFFERSPROC) (GLsizei n, const GLuint *renderbuffers); -typedef void (GL_APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader); -typedef void (GL_APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures); -typedef void (GL_APIENTRYP PFNGLDEPTHFUNCPROC) (GLenum func); -typedef void (GL_APIENTRYP PFNGLDEPTHMASKPROC) (GLboolean flag); -typedef void (GL_APIENTRYP PFNGLDEPTHRANGEFPROC) (GLfloat n, GLfloat f); -typedef void (GL_APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader); -typedef void (GL_APIENTRYP PFNGLDISABLEPROC) (GLenum cap); -typedef void (GL_APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index); -typedef void (GL_APIENTRYP PFNGLDRAWARRAYSPROC) (GLenum mode, GLint first, GLsizei count); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices); -typedef void (GL_APIENTRYP PFNGLENABLEPROC) (GLenum cap); -typedef void (GL_APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index); -typedef void (GL_APIENTRYP PFNGLFINISHPROC) (void); -typedef void (GL_APIENTRYP PFNGLFLUSHPROC) (void); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERRENDERBUFFERPROC) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); -typedef void (GL_APIENTRYP PFNGLFRONTFACEPROC) (GLenum mode); -typedef void (GL_APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers); -typedef void (GL_APIENTRYP PFNGLGENERATEMIPMAPPROC) (GLenum target); -typedef void (GL_APIENTRYP PFNGLGENFRAMEBUFFERSPROC) (GLsizei n, GLuint *framebuffers); -typedef void (GL_APIENTRYP PFNGLGENRENDERBUFFERSPROC) (GLsizei n, GLuint *renderbuffers); -typedef void (GL_APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures); -typedef void (GL_APIENTRYP PFNGLGETACTIVEATTRIBPROC) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); -typedef void (GL_APIENTRYP PFNGLGETACTIVEUNIFORMPROC) (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); -typedef void (GL_APIENTRYP PFNGLGETATTACHEDSHADERSPROC) (GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders); -typedef GLint (GL_APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name); -typedef void (GL_APIENTRYP PFNGLGETBOOLEANVPROC) (GLenum pname, GLboolean *data); -typedef void (GL_APIENTRYP PFNGLGETBUFFERPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); -typedef GLenum (GL_APIENTRYP PFNGLGETERRORPROC) (void); -typedef void (GL_APIENTRYP PFNGLGETFLOATVPROC) (GLenum pname, GLfloat *data); -typedef void (GL_APIENTRYP PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC) (GLenum target, GLenum attachment, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data); -typedef void (GL_APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -typedef void (GL_APIENTRYP PFNGLGETRENDERBUFFERPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -typedef void (GL_APIENTRYP PFNGLGETSHADERPRECISIONFORMATPROC) (GLenum shadertype, GLenum precisiontype, GLint *range, GLint *precision); -typedef void (GL_APIENTRYP PFNGLGETSHADERSOURCEPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source); -typedef const GLubyte *(GL_APIENTRYP PFNGLGETSTRINGPROC) (GLenum name); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERFVPROC) (GLenum target, GLenum pname, GLfloat *params); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERIVPROC) (GLenum target, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETUNIFORMFVPROC) (GLuint program, GLint location, GLfloat *params); -typedef void (GL_APIENTRYP PFNGLGETUNIFORMIVPROC) (GLuint program, GLint location, GLint *params); -typedef GLint (GL_APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name); -typedef void (GL_APIENTRYP PFNGLGETVERTEXATTRIBFVPROC) (GLuint index, GLenum pname, GLfloat *params); -typedef void (GL_APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer); -typedef void (GL_APIENTRYP PFNGLHINTPROC) (GLenum target, GLenum mode); -typedef GLboolean (GL_APIENTRYP PFNGLISBUFFERPROC) (GLuint buffer); -typedef GLboolean (GL_APIENTRYP PFNGLISENABLEDPROC) (GLenum cap); -typedef GLboolean (GL_APIENTRYP PFNGLISFRAMEBUFFERPROC) (GLuint framebuffer); -typedef GLboolean (GL_APIENTRYP PFNGLISPROGRAMPROC) (GLuint program); -typedef GLboolean (GL_APIENTRYP PFNGLISRENDERBUFFERPROC) (GLuint renderbuffer); -typedef GLboolean (GL_APIENTRYP PFNGLISSHADERPROC) (GLuint shader); -typedef GLboolean (GL_APIENTRYP PFNGLISTEXTUREPROC) (GLuint texture); -typedef void (GL_APIENTRYP PFNGLLINEWIDTHPROC) (GLfloat width); -typedef void (GL_APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program); -typedef void (GL_APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param); -typedef void (GL_APIENTRYP PFNGLPOLYGONOFFSETPROC) (GLfloat factor, GLfloat units); -typedef void (GL_APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); -typedef void (GL_APIENTRYP PFNGLRELEASESHADERCOMPILERPROC) (void); -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEPROC) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLSAMPLECOVERAGEPROC) (GLfloat value, GLboolean invert); -typedef void (GL_APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLSHADERBINARYPROC) (GLsizei count, const GLuint *shaders, GLenum binaryformat, const void *binary, GLsizei length); -typedef void (GL_APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); -typedef void (GL_APIENTRYP PFNGLSTENCILFUNCPROC) (GLenum func, GLint ref, GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILFUNCSEPARATEPROC) (GLenum face, GLenum func, GLint ref, GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILMASKPROC) (GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILMASKSEPARATEPROC) (GLenum face, GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILOPPROC) (GLenum fail, GLenum zfail, GLenum zpass); -typedef void (GL_APIENTRYP PFNGLSTENCILOPSEPARATEPROC) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); -typedef void (GL_APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERFPROC) (GLenum target, GLenum pname, GLfloat param); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERFVPROC) (GLenum target, GLenum pname, const GLfloat *params); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIVPROC) (GLenum target, GLenum pname, const GLint *params); -typedef void (GL_APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); -typedef void (GL_APIENTRYP PFNGLUNIFORM1FPROC) (GLint location, GLfloat v0); -typedef void (GL_APIENTRYP PFNGLUNIFORM1FVPROC) (GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0); -typedef void (GL_APIENTRYP PFNGLUNIFORM1IVPROC) (GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM2FPROC) (GLint location, GLfloat v0, GLfloat v1); -typedef void (GL_APIENTRYP PFNGLUNIFORM2FVPROC) (GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM2IPROC) (GLint location, GLint v0, GLint v1); -typedef void (GL_APIENTRYP PFNGLUNIFORM2IVPROC) (GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM3FPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2); -typedef void (GL_APIENTRYP PFNGLUNIFORM3FVPROC) (GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM3IPROC) (GLint location, GLint v0, GLint v1, GLint v2); -typedef void (GL_APIENTRYP PFNGLUNIFORM3IVPROC) (GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM4FPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); -typedef void (GL_APIENTRYP PFNGLUNIFORM4FVPROC) (GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM4IPROC) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3); -typedef void (GL_APIENTRYP PFNGLUNIFORM4IVPROC) (GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX2FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX3FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program); -typedef void (GL_APIENTRYP PFNGLVALIDATEPROGRAMPROC) (GLuint program); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB1FPROC) (GLuint index, GLfloat x); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB1FVPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB2FPROC) (GLuint index, GLfloat x, GLfloat y); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB2FVPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB3FPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB3FVPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB4FPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB4FVPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); -typedef void (GL_APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height); -#if GL_GLES_PROTOTYPES -GL_APICALL void GL_APIENTRY glActiveTexture (GLenum texture); -GL_APICALL void GL_APIENTRY glAttachShader (GLuint program, GLuint shader); -GL_APICALL void GL_APIENTRY glBindAttribLocation (GLuint program, GLuint index, const GLchar *name); -GL_APICALL void GL_APIENTRY glBindBuffer (GLenum target, GLuint buffer); -GL_APICALL void GL_APIENTRY glBindFramebuffer (GLenum target, GLuint framebuffer); -GL_APICALL void GL_APIENTRY glBindRenderbuffer (GLenum target, GLuint renderbuffer); -GL_APICALL void GL_APIENTRY glBindTexture (GLenum target, GLuint texture); -GL_APICALL void GL_APIENTRY glBlendColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); -GL_APICALL void GL_APIENTRY glBlendEquation (GLenum mode); -GL_APICALL void GL_APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha); -GL_APICALL void GL_APIENTRY glBlendFunc (GLenum sfactor, GLenum dfactor); -GL_APICALL void GL_APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); -GL_APICALL void GL_APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage); -GL_APICALL void GL_APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); -GL_APICALL GLenum GL_APIENTRY glCheckFramebufferStatus (GLenum target); -GL_APICALL void GL_APIENTRY glClear (GLbitfield mask); -GL_APICALL void GL_APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); -GL_APICALL void GL_APIENTRY glClearDepthf (GLfloat d); -GL_APICALL void GL_APIENTRY glClearStencil (GLint s); -GL_APICALL void GL_APIENTRY glColorMask (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); -GL_APICALL void GL_APIENTRY glCompileShader (GLuint shader); -GL_APICALL void GL_APIENTRY glCompressedTexImage2D (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data); -GL_APICALL void GL_APIENTRY glCompressedTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data); -GL_APICALL void GL_APIENTRY glCopyTexImage2D (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); -GL_APICALL void GL_APIENTRY glCopyTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); -GL_APICALL GLuint GL_APIENTRY glCreateProgram (void); -GL_APICALL GLuint GL_APIENTRY glCreateShader (GLenum type); -GL_APICALL void GL_APIENTRY glCullFace (GLenum mode); -GL_APICALL void GL_APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers); -GL_APICALL void GL_APIENTRY glDeleteFramebuffers (GLsizei n, const GLuint *framebuffers); -GL_APICALL void GL_APIENTRY glDeleteProgram (GLuint program); -GL_APICALL void GL_APIENTRY glDeleteRenderbuffers (GLsizei n, const GLuint *renderbuffers); -GL_APICALL void GL_APIENTRY glDeleteShader (GLuint shader); -GL_APICALL void GL_APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures); -GL_APICALL void GL_APIENTRY glDepthFunc (GLenum func); -GL_APICALL void GL_APIENTRY glDepthMask (GLboolean flag); -GL_APICALL void GL_APIENTRY glDepthRangef (GLfloat n, GLfloat f); -GL_APICALL void GL_APIENTRY glDetachShader (GLuint program, GLuint shader); -GL_APICALL void GL_APIENTRY glDisable (GLenum cap); -GL_APICALL void GL_APIENTRY glDisableVertexAttribArray (GLuint index); -GL_APICALL void GL_APIENTRY glDrawArrays (GLenum mode, GLint first, GLsizei count); -GL_APICALL void GL_APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices); -GL_APICALL void GL_APIENTRY glEnable (GLenum cap); -GL_APICALL void GL_APIENTRY glEnableVertexAttribArray (GLuint index); -GL_APICALL void GL_APIENTRY glFinish (void); -GL_APICALL void GL_APIENTRY glFlush (void); -GL_APICALL void GL_APIENTRY glFramebufferRenderbuffer (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer); -GL_APICALL void GL_APIENTRY glFramebufferTexture2D (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level); -GL_APICALL void GL_APIENTRY glFrontFace (GLenum mode); -GL_APICALL void GL_APIENTRY glGenBuffers (GLsizei n, GLuint *buffers); -GL_APICALL void GL_APIENTRY glGenerateMipmap (GLenum target); -GL_APICALL void GL_APIENTRY glGenFramebuffers (GLsizei n, GLuint *framebuffers); -GL_APICALL void GL_APIENTRY glGenRenderbuffers (GLsizei n, GLuint *renderbuffers); -GL_APICALL void GL_APIENTRY glGenTextures (GLsizei n, GLuint *textures); -GL_APICALL void GL_APIENTRY glGetActiveAttrib (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); -GL_APICALL void GL_APIENTRY glGetActiveUniform (GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name); -GL_APICALL void GL_APIENTRY glGetAttachedShaders (GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders); -GL_APICALL GLint GL_APIENTRY glGetAttribLocation (GLuint program, const GLchar *name); -GL_APICALL void GL_APIENTRY glGetBooleanv (GLenum pname, GLboolean *data); -GL_APICALL void GL_APIENTRY glGetBufferParameteriv (GLenum target, GLenum pname, GLint *params); -GL_APICALL GLenum GL_APIENTRY glGetError (void); -GL_APICALL void GL_APIENTRY glGetFloatv (GLenum pname, GLfloat *data); -GL_APICALL void GL_APIENTRY glGetFramebufferAttachmentParameteriv (GLenum target, GLenum attachment, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetIntegerv (GLenum pname, GLint *data); -GL_APICALL void GL_APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -GL_APICALL void GL_APIENTRY glGetRenderbufferParameteriv (GLenum target, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -GL_APICALL void GL_APIENTRY glGetShaderPrecisionFormat (GLenum shadertype, GLenum precisiontype, GLint *range, GLint *precision); -GL_APICALL void GL_APIENTRY glGetShaderSource (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source); -GL_APICALL const GLubyte *GL_APIENTRY glGetString (GLenum name); -GL_APICALL void GL_APIENTRY glGetTexParameterfv (GLenum target, GLenum pname, GLfloat *params); -GL_APICALL void GL_APIENTRY glGetTexParameteriv (GLenum target, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetUniformfv (GLuint program, GLint location, GLfloat *params); -GL_APICALL void GL_APIENTRY glGetUniformiv (GLuint program, GLint location, GLint *params); -GL_APICALL GLint GL_APIENTRY glGetUniformLocation (GLuint program, const GLchar *name); -GL_APICALL void GL_APIENTRY glGetVertexAttribfv (GLuint index, GLenum pname, GLfloat *params); -GL_APICALL void GL_APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer); -GL_APICALL void GL_APIENTRY glHint (GLenum target, GLenum mode); -GL_APICALL GLboolean GL_APIENTRY glIsBuffer (GLuint buffer); -GL_APICALL GLboolean GL_APIENTRY glIsEnabled (GLenum cap); -GL_APICALL GLboolean GL_APIENTRY glIsFramebuffer (GLuint framebuffer); -GL_APICALL GLboolean GL_APIENTRY glIsProgram (GLuint program); -GL_APICALL GLboolean GL_APIENTRY glIsRenderbuffer (GLuint renderbuffer); -GL_APICALL GLboolean GL_APIENTRY glIsShader (GLuint shader); -GL_APICALL GLboolean GL_APIENTRY glIsTexture (GLuint texture); -GL_APICALL void GL_APIENTRY glLineWidth (GLfloat width); -GL_APICALL void GL_APIENTRY glLinkProgram (GLuint program); -GL_APICALL void GL_APIENTRY glPixelStorei (GLenum pname, GLint param); -GL_APICALL void GL_APIENTRY glPolygonOffset (GLfloat factor, GLfloat units); -GL_APICALL void GL_APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); -GL_APICALL void GL_APIENTRY glReleaseShaderCompiler (void); -GL_APICALL void GL_APIENTRY glRenderbufferStorage (GLenum target, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glSampleCoverage (GLfloat value, GLboolean invert); -GL_APICALL void GL_APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glShaderBinary (GLsizei count, const GLuint *shaders, GLenum binaryformat, const void *binary, GLsizei length); -GL_APICALL void GL_APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); -GL_APICALL void GL_APIENTRY glStencilFunc (GLenum func, GLint ref, GLuint mask); -GL_APICALL void GL_APIENTRY glStencilFuncSeparate (GLenum face, GLenum func, GLint ref, GLuint mask); -GL_APICALL void GL_APIENTRY glStencilMask (GLuint mask); -GL_APICALL void GL_APIENTRY glStencilMaskSeparate (GLenum face, GLuint mask); -GL_APICALL void GL_APIENTRY glStencilOp (GLenum fail, GLenum zfail, GLenum zpass); -GL_APICALL void GL_APIENTRY glStencilOpSeparate (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); -GL_APICALL void GL_APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); -GL_APICALL void GL_APIENTRY glTexParameterf (GLenum target, GLenum pname, GLfloat param); -GL_APICALL void GL_APIENTRY glTexParameterfv (GLenum target, GLenum pname, const GLfloat *params); -GL_APICALL void GL_APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param); -GL_APICALL void GL_APIENTRY glTexParameteriv (GLenum target, GLenum pname, const GLint *params); -GL_APICALL void GL_APIENTRY glTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels); -GL_APICALL void GL_APIENTRY glUniform1f (GLint location, GLfloat v0); -GL_APICALL void GL_APIENTRY glUniform1fv (GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniform1i (GLint location, GLint v0); -GL_APICALL void GL_APIENTRY glUniform1iv (GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glUniform2f (GLint location, GLfloat v0, GLfloat v1); -GL_APICALL void GL_APIENTRY glUniform2fv (GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniform2i (GLint location, GLint v0, GLint v1); -GL_APICALL void GL_APIENTRY glUniform2iv (GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glUniform3f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2); -GL_APICALL void GL_APIENTRY glUniform3fv (GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniform3i (GLint location, GLint v0, GLint v1, GLint v2); -GL_APICALL void GL_APIENTRY glUniform3iv (GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glUniform4f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); -GL_APICALL void GL_APIENTRY glUniform4fv (GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniform4i (GLint location, GLint v0, GLint v1, GLint v2, GLint v3); -GL_APICALL void GL_APIENTRY glUniform4iv (GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glUniformMatrix2fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix3fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUseProgram (GLuint program); -GL_APICALL void GL_APIENTRY glValidateProgram (GLuint program); -GL_APICALL void GL_APIENTRY glVertexAttrib1f (GLuint index, GLfloat x); -GL_APICALL void GL_APIENTRY glVertexAttrib1fv (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glVertexAttrib2f (GLuint index, GLfloat x, GLfloat y); -GL_APICALL void GL_APIENTRY glVertexAttrib2fv (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glVertexAttrib3f (GLuint index, GLfloat x, GLfloat y, GLfloat z); -GL_APICALL void GL_APIENTRY glVertexAttrib3fv (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glVertexAttrib4f (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); -GL_APICALL void GL_APIENTRY glVertexAttrib4fv (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); -GL_APICALL void GL_APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height); -#endif -#endif /* GL_ES_VERSION_2_0 */ - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/screenshot/include/GLES2/gl2ext.h b/screenshot/include/GLES2/gl2ext.h deleted file mode 100755 index 5135d8a..0000000 --- a/screenshot/include/GLES2/gl2ext.h +++ /dev/null @@ -1,3243 +0,0 @@ -#ifndef __gl2ext_h_ -#define __gl2ext_h_ 1 - -#ifdef __cplusplus -extern "C" { -#endif - -/* -** Copyright (c) 2013-2017 The Khronos Group Inc. -** -** Permission is hereby granted, free of charge, to any person obtaining a -** copy of this software and/or associated documentation files (the -** "Materials"), to deal in the Materials without restriction, including -** without limitation the rights to use, copy, modify, merge, publish, -** distribute, sublicense, and/or sell copies of the Materials, and to -** permit persons to whom the Materials are furnished to do so, subject to -** the following conditions: -** -** The above copyright notice and this permission notice shall be included -** in all copies or substantial portions of the Materials. -** -** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. -*/ -/* -** This header is generated from the Khronos OpenGL / OpenGL ES XML -** API Registry. The current version of the Registry, generator scripts -** used to make the header, and the header can be found at -** https://github.com/KhronosGroup/OpenGL-Registry -*/ - -#ifndef GL_APIENTRYP -#define GL_APIENTRYP GL_APIENTRY* -#endif - -/* Generated on date 20170209 */ - -/* Generated C header for: - * API: gles2 - * Profile: common - * Versions considered: 2\.[0-9] - * Versions emitted: _nomatch_^ - * Default extensions included: gles2 - * Additional extensions included: _nomatch_^ - * Extensions removed: _nomatch_^ - */ - -#ifndef GL_ARB_sparse_texture2 -#define GL_ARB_sparse_texture2 1 -#endif /* GL_ARB_sparse_texture2 */ - -#ifndef GL_KHR_blend_equation_advanced -#define GL_KHR_blend_equation_advanced 1 -#define GL_MULTIPLY_KHR 0x9294 -#define GL_SCREEN_KHR 0x9295 -#define GL_OVERLAY_KHR 0x9296 -#define GL_DARKEN_KHR 0x9297 -#define GL_LIGHTEN_KHR 0x9298 -#define GL_COLORDODGE_KHR 0x9299 -#define GL_COLORBURN_KHR 0x929A -#define GL_HARDLIGHT_KHR 0x929B -#define GL_SOFTLIGHT_KHR 0x929C -#define GL_DIFFERENCE_KHR 0x929E -#define GL_EXCLUSION_KHR 0x92A0 -#define GL_HSL_HUE_KHR 0x92AD -#define GL_HSL_SATURATION_KHR 0x92AE -#define GL_HSL_COLOR_KHR 0x92AF -#define GL_HSL_LUMINOSITY_KHR 0x92B0 -typedef void (GL_APIENTRYP PFNGLBLENDBARRIERKHRPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBlendBarrierKHR (void); -#endif -#endif /* GL_KHR_blend_equation_advanced */ - -#ifndef GL_KHR_blend_equation_advanced_coherent -#define GL_KHR_blend_equation_advanced_coherent 1 -#define GL_BLEND_ADVANCED_COHERENT_KHR 0x9285 -#endif /* GL_KHR_blend_equation_advanced_coherent */ - -#ifndef GL_KHR_context_flush_control -#define GL_KHR_context_flush_control 1 -#define GL_CONTEXT_RELEASE_BEHAVIOR_KHR 0x82FB -#define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR 0x82FC -#endif /* GL_KHR_context_flush_control */ - -#ifndef GL_KHR_debug -#define GL_KHR_debug 1 -typedef void (GL_APIENTRY *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); -#define GL_SAMPLER 0x82E6 -#define GL_DEBUG_OUTPUT_SYNCHRONOUS_KHR 0x8242 -#define GL_DEBUG_NEXT_LOGGED_MESSAGE_LENGTH_KHR 0x8243 -#define GL_DEBUG_CALLBACK_FUNCTION_KHR 0x8244 -#define GL_DEBUG_CALLBACK_USER_PARAM_KHR 0x8245 -#define GL_DEBUG_SOURCE_API_KHR 0x8246 -#define GL_DEBUG_SOURCE_WINDOW_SYSTEM_KHR 0x8247 -#define GL_DEBUG_SOURCE_SHADER_COMPILER_KHR 0x8248 -#define GL_DEBUG_SOURCE_THIRD_PARTY_KHR 0x8249 -#define GL_DEBUG_SOURCE_APPLICATION_KHR 0x824A -#define GL_DEBUG_SOURCE_OTHER_KHR 0x824B -#define GL_DEBUG_TYPE_ERROR_KHR 0x824C -#define GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_KHR 0x824D -#define GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_KHR 0x824E -#define GL_DEBUG_TYPE_PORTABILITY_KHR 0x824F -#define GL_DEBUG_TYPE_PERFORMANCE_KHR 0x8250 -#define GL_DEBUG_TYPE_OTHER_KHR 0x8251 -#define GL_DEBUG_TYPE_MARKER_KHR 0x8268 -#define GL_DEBUG_TYPE_PUSH_GROUP_KHR 0x8269 -#define GL_DEBUG_TYPE_POP_GROUP_KHR 0x826A -#define GL_DEBUG_SEVERITY_NOTIFICATION_KHR 0x826B -#define GL_MAX_DEBUG_GROUP_STACK_DEPTH_KHR 0x826C -#define GL_DEBUG_GROUP_STACK_DEPTH_KHR 0x826D -#define GL_BUFFER_KHR 0x82E0 -#define GL_SHADER_KHR 0x82E1 -#define GL_PROGRAM_KHR 0x82E2 -#define GL_VERTEX_ARRAY_KHR 0x8074 -#define GL_QUERY_KHR 0x82E3 -#define GL_PROGRAM_PIPELINE_KHR 0x82E4 -#define GL_SAMPLER_KHR 0x82E6 -#define GL_MAX_LABEL_LENGTH_KHR 0x82E8 -#define GL_MAX_DEBUG_MESSAGE_LENGTH_KHR 0x9143 -#define GL_MAX_DEBUG_LOGGED_MESSAGES_KHR 0x9144 -#define GL_DEBUG_LOGGED_MESSAGES_KHR 0x9145 -#define GL_DEBUG_SEVERITY_HIGH_KHR 0x9146 -#define GL_DEBUG_SEVERITY_MEDIUM_KHR 0x9147 -#define GL_DEBUG_SEVERITY_LOW_KHR 0x9148 -#define GL_DEBUG_OUTPUT_KHR 0x92E0 -#define GL_CONTEXT_FLAG_DEBUG_BIT_KHR 0x00000002 -#define GL_STACK_OVERFLOW_KHR 0x0503 -#define GL_STACK_UNDERFLOW_KHR 0x0504 -typedef void (GL_APIENTRYP PFNGLDEBUGMESSAGECONTROLKHRPROC) (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); -typedef void (GL_APIENTRYP PFNGLDEBUGMESSAGEINSERTKHRPROC) (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); -typedef void (GL_APIENTRYP PFNGLDEBUGMESSAGECALLBACKKHRPROC) (GLDEBUGPROCKHR callback, const void *userParam); -typedef GLuint (GL_APIENTRYP PFNGLGETDEBUGMESSAGELOGKHRPROC) (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); -typedef void (GL_APIENTRYP PFNGLPUSHDEBUGGROUPKHRPROC) (GLenum source, GLuint id, GLsizei length, const GLchar *message); -typedef void (GL_APIENTRYP PFNGLPOPDEBUGGROUPKHRPROC) (void); -typedef void (GL_APIENTRYP PFNGLOBJECTLABELKHRPROC) (GLenum identifier, GLuint name, GLsizei length, const GLchar *label); -typedef void (GL_APIENTRYP PFNGLGETOBJECTLABELKHRPROC) (GLenum identifier, GLuint name, GLsizei bufSize, GLsizei *length, GLchar *label); -typedef void (GL_APIENTRYP PFNGLOBJECTPTRLABELKHRPROC) (const void *ptr, GLsizei length, const GLchar *label); -typedef void (GL_APIENTRYP PFNGLGETOBJECTPTRLABELKHRPROC) (const void *ptr, GLsizei bufSize, GLsizei *length, GLchar *label); -typedef void (GL_APIENTRYP PFNGLGETPOINTERVKHRPROC) (GLenum pname, void **params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDebugMessageControlKHR (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint *ids, GLboolean enabled); -GL_APICALL void GL_APIENTRY glDebugMessageInsertKHR (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *buf); -GL_APICALL void GL_APIENTRY glDebugMessageCallbackKHR (GLDEBUGPROCKHR callback, const void *userParam); -GL_APICALL GLuint GL_APIENTRY glGetDebugMessageLogKHR (GLuint count, GLsizei bufSize, GLenum *sources, GLenum *types, GLuint *ids, GLenum *severities, GLsizei *lengths, GLchar *messageLog); -GL_APICALL void GL_APIENTRY glPushDebugGroupKHR (GLenum source, GLuint id, GLsizei length, const GLchar *message); -GL_APICALL void GL_APIENTRY glPopDebugGroupKHR (void); -GL_APICALL void GL_APIENTRY glObjectLabelKHR (GLenum identifier, GLuint name, GLsizei length, const GLchar *label); -GL_APICALL void GL_APIENTRY glGetObjectLabelKHR (GLenum identifier, GLuint name, GLsizei bufSize, GLsizei *length, GLchar *label); -GL_APICALL void GL_APIENTRY glObjectPtrLabelKHR (const void *ptr, GLsizei length, const GLchar *label); -GL_APICALL void GL_APIENTRY glGetObjectPtrLabelKHR (const void *ptr, GLsizei bufSize, GLsizei *length, GLchar *label); -GL_APICALL void GL_APIENTRY glGetPointervKHR (GLenum pname, void **params); -#endif -#endif /* GL_KHR_debug */ - -#ifndef GL_KHR_no_error -#define GL_KHR_no_error 1 -#define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008 -#endif /* GL_KHR_no_error */ - -#ifndef GL_KHR_robust_buffer_access_behavior -#define GL_KHR_robust_buffer_access_behavior 1 -#endif /* GL_KHR_robust_buffer_access_behavior */ - -#ifndef GL_KHR_robustness -#define GL_KHR_robustness 1 -#define GL_CONTEXT_ROBUST_ACCESS_KHR 0x90F3 -#define GL_LOSE_CONTEXT_ON_RESET_KHR 0x8252 -#define GL_GUILTY_CONTEXT_RESET_KHR 0x8253 -#define GL_INNOCENT_CONTEXT_RESET_KHR 0x8254 -#define GL_UNKNOWN_CONTEXT_RESET_KHR 0x8255 -#define GL_RESET_NOTIFICATION_STRATEGY_KHR 0x8256 -#define GL_NO_RESET_NOTIFICATION_KHR 0x8261 -#define GL_CONTEXT_LOST_KHR 0x0507 -typedef GLenum (GL_APIENTRYP PFNGLGETGRAPHICSRESETSTATUSKHRPROC) (void); -typedef void (GL_APIENTRYP PFNGLREADNPIXELSKHRPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); -typedef void (GL_APIENTRYP PFNGLGETNUNIFORMFVKHRPROC) (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); -typedef void (GL_APIENTRYP PFNGLGETNUNIFORMIVKHRPROC) (GLuint program, GLint location, GLsizei bufSize, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETNUNIFORMUIVKHRPROC) (GLuint program, GLint location, GLsizei bufSize, GLuint *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLenum GL_APIENTRY glGetGraphicsResetStatusKHR (void); -GL_APICALL void GL_APIENTRY glReadnPixelsKHR (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); -GL_APICALL void GL_APIENTRY glGetnUniformfvKHR (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); -GL_APICALL void GL_APIENTRY glGetnUniformivKHR (GLuint program, GLint location, GLsizei bufSize, GLint *params); -GL_APICALL void GL_APIENTRY glGetnUniformuivKHR (GLuint program, GLint location, GLsizei bufSize, GLuint *params); -#endif -#endif /* GL_KHR_robustness */ - -#ifndef GL_KHR_texture_compression_astc_hdr -#define GL_KHR_texture_compression_astc_hdr 1 -#define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93B0 -#define GL_COMPRESSED_RGBA_ASTC_5x4_KHR 0x93B1 -#define GL_COMPRESSED_RGBA_ASTC_5x5_KHR 0x93B2 -#define GL_COMPRESSED_RGBA_ASTC_6x5_KHR 0x93B3 -#define GL_COMPRESSED_RGBA_ASTC_6x6_KHR 0x93B4 -#define GL_COMPRESSED_RGBA_ASTC_8x5_KHR 0x93B5 -#define GL_COMPRESSED_RGBA_ASTC_8x6_KHR 0x93B6 -#define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93B7 -#define GL_COMPRESSED_RGBA_ASTC_10x5_KHR 0x93B8 -#define GL_COMPRESSED_RGBA_ASTC_10x6_KHR 0x93B9 -#define GL_COMPRESSED_RGBA_ASTC_10x8_KHR 0x93BA -#define GL_COMPRESSED_RGBA_ASTC_10x10_KHR 0x93BB -#define GL_COMPRESSED_RGBA_ASTC_12x10_KHR 0x93BC -#define GL_COMPRESSED_RGBA_ASTC_12x12_KHR 0x93BD -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR 0x93D0 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR 0x93D1 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR 0x93D2 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR 0x93D3 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR 0x93D4 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR 0x93D5 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR 0x93D6 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR 0x93D7 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR 0x93D8 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR 0x93D9 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR 0x93DA -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR 0x93DB -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR 0x93DC -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR 0x93DD -#endif /* GL_KHR_texture_compression_astc_hdr */ - -#ifndef GL_KHR_texture_compression_astc_ldr -#define GL_KHR_texture_compression_astc_ldr 1 -#endif /* GL_KHR_texture_compression_astc_ldr */ - -#ifndef GL_KHR_texture_compression_astc_sliced_3d -#define GL_KHR_texture_compression_astc_sliced_3d 1 -#endif /* GL_KHR_texture_compression_astc_sliced_3d */ - -#ifndef GL_OES_EGL_image -#define GL_OES_EGL_image 1 -typedef void *GLeglImageOES; -typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image); -typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glEGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image); -GL_APICALL void GL_APIENTRY glEGLImageTargetRenderbufferStorageOES (GLenum target, GLeglImageOES image); -#endif -#endif /* GL_OES_EGL_image */ - -#ifndef GL_OES_EGL_image_external -#define GL_OES_EGL_image_external 1 -#define GL_TEXTURE_EXTERNAL_OES 0x8D65 -#define GL_TEXTURE_BINDING_EXTERNAL_OES 0x8D67 -#define GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES 0x8D68 -#define GL_SAMPLER_EXTERNAL_OES 0x8D66 -#endif /* GL_OES_EGL_image_external */ - -#ifndef GL_OES_EGL_image_external_essl3 -#define GL_OES_EGL_image_external_essl3 1 -#endif /* GL_OES_EGL_image_external_essl3 */ - -#ifndef GL_OES_compressed_ETC1_RGB8_sub_texture -#define GL_OES_compressed_ETC1_RGB8_sub_texture 1 -#endif /* GL_OES_compressed_ETC1_RGB8_sub_texture */ - -#ifndef GL_OES_compressed_ETC1_RGB8_texture -#define GL_OES_compressed_ETC1_RGB8_texture 1 -#define GL_ETC1_RGB8_OES 0x8D64 -#endif /* GL_OES_compressed_ETC1_RGB8_texture */ - -#ifndef GL_OES_compressed_paletted_texture -#define GL_OES_compressed_paletted_texture 1 -#define GL_PALETTE4_RGB8_OES 0x8B90 -#define GL_PALETTE4_RGBA8_OES 0x8B91 -#define GL_PALETTE4_R5_G6_B5_OES 0x8B92 -#define GL_PALETTE4_RGBA4_OES 0x8B93 -#define GL_PALETTE4_RGB5_A1_OES 0x8B94 -#define GL_PALETTE8_RGB8_OES 0x8B95 -#define GL_PALETTE8_RGBA8_OES 0x8B96 -#define GL_PALETTE8_R5_G6_B5_OES 0x8B97 -#define GL_PALETTE8_RGBA4_OES 0x8B98 -#define GL_PALETTE8_RGB5_A1_OES 0x8B99 -#endif /* GL_OES_compressed_paletted_texture */ - -#ifndef GL_OES_copy_image -#define GL_OES_copy_image 1 -typedef void (GL_APIENTRYP PFNGLCOPYIMAGESUBDATAOESPROC) (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCopyImageSubDataOES (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); -#endif -#endif /* GL_OES_copy_image */ - -#ifndef GL_OES_depth24 -#define GL_OES_depth24 1 -#define GL_DEPTH_COMPONENT24_OES 0x81A6 -#endif /* GL_OES_depth24 */ - -#ifndef GL_OES_depth32 -#define GL_OES_depth32 1 -#define GL_DEPTH_COMPONENT32_OES 0x81A7 -#endif /* GL_OES_depth32 */ - -#ifndef GL_OES_depth_texture -#define GL_OES_depth_texture 1 -#endif /* GL_OES_depth_texture */ - -#ifndef GL_OES_draw_buffers_indexed -#define GL_OES_draw_buffers_indexed 1 -#define GL_MIN 0x8007 -#define GL_MAX 0x8008 -typedef void (GL_APIENTRYP PFNGLENABLEIOESPROC) (GLenum target, GLuint index); -typedef void (GL_APIENTRYP PFNGLDISABLEIOESPROC) (GLenum target, GLuint index); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONIOESPROC) (GLuint buf, GLenum mode); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONSEPARATEIOESPROC) (GLuint buf, GLenum modeRGB, GLenum modeAlpha); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCIOESPROC) (GLuint buf, GLenum src, GLenum dst); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCSEPARATEIOESPROC) (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); -typedef void (GL_APIENTRYP PFNGLCOLORMASKIOESPROC) (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); -typedef GLboolean (GL_APIENTRYP PFNGLISENABLEDIOESPROC) (GLenum target, GLuint index); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glEnableiOES (GLenum target, GLuint index); -GL_APICALL void GL_APIENTRY glDisableiOES (GLenum target, GLuint index); -GL_APICALL void GL_APIENTRY glBlendEquationiOES (GLuint buf, GLenum mode); -GL_APICALL void GL_APIENTRY glBlendEquationSeparateiOES (GLuint buf, GLenum modeRGB, GLenum modeAlpha); -GL_APICALL void GL_APIENTRY glBlendFunciOES (GLuint buf, GLenum src, GLenum dst); -GL_APICALL void GL_APIENTRY glBlendFuncSeparateiOES (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); -GL_APICALL void GL_APIENTRY glColorMaskiOES (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); -GL_APICALL GLboolean GL_APIENTRY glIsEnablediOES (GLenum target, GLuint index); -#endif -#endif /* GL_OES_draw_buffers_indexed */ - -#ifndef GL_OES_draw_elements_base_vertex -#define GL_OES_draw_elements_base_vertex 1 -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXOESPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXOESPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXOESPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXOESPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawElementsBaseVertexOES (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); -GL_APICALL void GL_APIENTRY glDrawRangeElementsBaseVertexOES (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseVertexOES (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); -GL_APICALL void GL_APIENTRY glMultiDrawElementsBaseVertexOES (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex); -#endif -#endif /* GL_OES_draw_elements_base_vertex */ - -#ifndef GL_OES_element_index_uint -#define GL_OES_element_index_uint 1 -#endif /* GL_OES_element_index_uint */ - -#ifndef GL_OES_fbo_render_mipmap -#define GL_OES_fbo_render_mipmap 1 -#endif /* GL_OES_fbo_render_mipmap */ - -#ifndef GL_OES_fragment_precision_high -#define GL_OES_fragment_precision_high 1 -#endif /* GL_OES_fragment_precision_high */ - -#ifndef GL_OES_geometry_point_size -#define GL_OES_geometry_point_size 1 -#endif /* GL_OES_geometry_point_size */ - -#ifndef GL_OES_geometry_shader -#define GL_OES_geometry_shader 1 -#define GL_GEOMETRY_SHADER_OES 0x8DD9 -#define GL_GEOMETRY_SHADER_BIT_OES 0x00000004 -#define GL_GEOMETRY_LINKED_VERTICES_OUT_OES 0x8916 -#define GL_GEOMETRY_LINKED_INPUT_TYPE_OES 0x8917 -#define GL_GEOMETRY_LINKED_OUTPUT_TYPE_OES 0x8918 -#define GL_GEOMETRY_SHADER_INVOCATIONS_OES 0x887F -#define GL_LAYER_PROVOKING_VERTEX_OES 0x825E -#define GL_LINES_ADJACENCY_OES 0x000A -#define GL_LINE_STRIP_ADJACENCY_OES 0x000B -#define GL_TRIANGLES_ADJACENCY_OES 0x000C -#define GL_TRIANGLE_STRIP_ADJACENCY_OES 0x000D -#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_OES 0x8DDF -#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS_OES 0x8A2C -#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_OES 0x8A32 -#define GL_MAX_GEOMETRY_INPUT_COMPONENTS_OES 0x9123 -#define GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_OES 0x9124 -#define GL_MAX_GEOMETRY_OUTPUT_VERTICES_OES 0x8DE0 -#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_OES 0x8DE1 -#define GL_MAX_GEOMETRY_SHADER_INVOCATIONS_OES 0x8E5A -#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_OES 0x8C29 -#define GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_OES 0x92CF -#define GL_MAX_GEOMETRY_ATOMIC_COUNTERS_OES 0x92D5 -#define GL_MAX_GEOMETRY_IMAGE_UNIFORMS_OES 0x90CD -#define GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_OES 0x90D7 -#define GL_FIRST_VERTEX_CONVENTION_OES 0x8E4D -#define GL_LAST_VERTEX_CONVENTION_OES 0x8E4E -#define GL_UNDEFINED_VERTEX_OES 0x8260 -#define GL_PRIMITIVES_GENERATED_OES 0x8C87 -#define GL_FRAMEBUFFER_DEFAULT_LAYERS_OES 0x9312 -#define GL_MAX_FRAMEBUFFER_LAYERS_OES 0x9317 -#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_OES 0x8DA8 -#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_OES 0x8DA7 -#define GL_REFERENCED_BY_GEOMETRY_SHADER_OES 0x9309 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTUREOESPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferTextureOES (GLenum target, GLenum attachment, GLuint texture, GLint level); -#endif -#endif /* GL_OES_geometry_shader */ - -#ifndef GL_OES_get_program_binary -#define GL_OES_get_program_binary 1 -#define GL_PROGRAM_BINARY_LENGTH_OES 0x8741 -#define GL_NUM_PROGRAM_BINARY_FORMATS_OES 0x87FE -#define GL_PROGRAM_BINARY_FORMATS_OES 0x87FF -typedef void (GL_APIENTRYP PFNGLGETPROGRAMBINARYOESPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary); -typedef void (GL_APIENTRYP PFNGLPROGRAMBINARYOESPROC) (GLuint program, GLenum binaryFormat, const void *binary, GLint length); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGetProgramBinaryOES (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary); -GL_APICALL void GL_APIENTRY glProgramBinaryOES (GLuint program, GLenum binaryFormat, const void *binary, GLint length); -#endif -#endif /* GL_OES_get_program_binary */ - -#ifndef GL_OES_gpu_shader5 -#define GL_OES_gpu_shader5 1 -#endif /* GL_OES_gpu_shader5 */ - -#ifndef GL_OES_mapbuffer -#define GL_OES_mapbuffer 1 -#define GL_WRITE_ONLY_OES 0x88B9 -#define GL_BUFFER_ACCESS_OES 0x88BB -#define GL_BUFFER_MAPPED_OES 0x88BC -#define GL_BUFFER_MAP_POINTER_OES 0x88BD -typedef void *(GL_APIENTRYP PFNGLMAPBUFFEROESPROC) (GLenum target, GLenum access); -typedef GLboolean (GL_APIENTRYP PFNGLUNMAPBUFFEROESPROC) (GLenum target); -typedef void (GL_APIENTRYP PFNGLGETBUFFERPOINTERVOESPROC) (GLenum target, GLenum pname, void **params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void *GL_APIENTRY glMapBufferOES (GLenum target, GLenum access); -GL_APICALL GLboolean GL_APIENTRY glUnmapBufferOES (GLenum target); -GL_APICALL void GL_APIENTRY glGetBufferPointervOES (GLenum target, GLenum pname, void **params); -#endif -#endif /* GL_OES_mapbuffer */ - -#ifndef GL_OES_packed_depth_stencil -#define GL_OES_packed_depth_stencil 1 -#define GL_DEPTH_STENCIL_OES 0x84F9 -#define GL_UNSIGNED_INT_24_8_OES 0x84FA -#define GL_DEPTH24_STENCIL8_OES 0x88F0 -#endif /* GL_OES_packed_depth_stencil */ - -#ifndef GL_OES_primitive_bounding_box -#define GL_OES_primitive_bounding_box 1 -#define GL_PRIMITIVE_BOUNDING_BOX_OES 0x92BE -typedef void (GL_APIENTRYP PFNGLPRIMITIVEBOUNDINGBOXOESPROC) (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPrimitiveBoundingBoxOES (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); -#endif -#endif /* GL_OES_primitive_bounding_box */ - -#ifndef GL_OES_required_internalformat -#define GL_OES_required_internalformat 1 -#define GL_ALPHA8_OES 0x803C -#define GL_DEPTH_COMPONENT16_OES 0x81A5 -#define GL_LUMINANCE4_ALPHA4_OES 0x8043 -#define GL_LUMINANCE8_ALPHA8_OES 0x8045 -#define GL_LUMINANCE8_OES 0x8040 -#define GL_RGBA4_OES 0x8056 -#define GL_RGB5_A1_OES 0x8057 -#define GL_RGB565_OES 0x8D62 -#define GL_RGB8_OES 0x8051 -#define GL_RGBA8_OES 0x8058 -#define GL_RGB10_EXT 0x8052 -#define GL_RGB10_A2_EXT 0x8059 -#endif /* GL_OES_required_internalformat */ - -#ifndef GL_OES_rgb8_rgba8 -#define GL_OES_rgb8_rgba8 1 -#endif /* GL_OES_rgb8_rgba8 */ - -#ifndef GL_OES_sample_shading -#define GL_OES_sample_shading 1 -#define GL_SAMPLE_SHADING_OES 0x8C36 -#define GL_MIN_SAMPLE_SHADING_VALUE_OES 0x8C37 -typedef void (GL_APIENTRYP PFNGLMINSAMPLESHADINGOESPROC) (GLfloat value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glMinSampleShadingOES (GLfloat value); -#endif -#endif /* GL_OES_sample_shading */ - -#ifndef GL_OES_sample_variables -#define GL_OES_sample_variables 1 -#endif /* GL_OES_sample_variables */ - -#ifndef GL_OES_shader_image_atomic -#define GL_OES_shader_image_atomic 1 -#endif /* GL_OES_shader_image_atomic */ - -#ifndef GL_OES_shader_io_blocks -#define GL_OES_shader_io_blocks 1 -#endif /* GL_OES_shader_io_blocks */ - -#ifndef GL_OES_shader_multisample_interpolation -#define GL_OES_shader_multisample_interpolation 1 -#define GL_MIN_FRAGMENT_INTERPOLATION_OFFSET_OES 0x8E5B -#define GL_MAX_FRAGMENT_INTERPOLATION_OFFSET_OES 0x8E5C -#define GL_FRAGMENT_INTERPOLATION_OFFSET_BITS_OES 0x8E5D -#endif /* GL_OES_shader_multisample_interpolation */ - -#ifndef GL_OES_standard_derivatives -#define GL_OES_standard_derivatives 1 -#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES 0x8B8B -#endif /* GL_OES_standard_derivatives */ - -#ifndef GL_OES_stencil1 -#define GL_OES_stencil1 1 -#define GL_STENCIL_INDEX1_OES 0x8D46 -#endif /* GL_OES_stencil1 */ - -#ifndef GL_OES_stencil4 -#define GL_OES_stencil4 1 -#define GL_STENCIL_INDEX4_OES 0x8D47 -#endif /* GL_OES_stencil4 */ - -#ifndef GL_OES_surfaceless_context -#define GL_OES_surfaceless_context 1 -#define GL_FRAMEBUFFER_UNDEFINED_OES 0x8219 -#endif /* GL_OES_surfaceless_context */ - -#ifndef GL_OES_tessellation_point_size -#define GL_OES_tessellation_point_size 1 -#endif /* GL_OES_tessellation_point_size */ - -#ifndef GL_OES_tessellation_shader -#define GL_OES_tessellation_shader 1 -#define GL_PATCHES_OES 0x000E -#define GL_PATCH_VERTICES_OES 0x8E72 -#define GL_TESS_CONTROL_OUTPUT_VERTICES_OES 0x8E75 -#define GL_TESS_GEN_MODE_OES 0x8E76 -#define GL_TESS_GEN_SPACING_OES 0x8E77 -#define GL_TESS_GEN_VERTEX_ORDER_OES 0x8E78 -#define GL_TESS_GEN_POINT_MODE_OES 0x8E79 -#define GL_ISOLINES_OES 0x8E7A -#define GL_QUADS_OES 0x0007 -#define GL_FRACTIONAL_ODD_OES 0x8E7B -#define GL_FRACTIONAL_EVEN_OES 0x8E7C -#define GL_MAX_PATCH_VERTICES_OES 0x8E7D -#define GL_MAX_TESS_GEN_LEVEL_OES 0x8E7E -#define GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS_OES 0x8E7F -#define GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS_OES 0x8E80 -#define GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS_OES 0x8E81 -#define GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS_OES 0x8E82 -#define GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS_OES 0x8E83 -#define GL_MAX_TESS_PATCH_COMPONENTS_OES 0x8E84 -#define GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS_OES 0x8E85 -#define GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS_OES 0x8E86 -#define GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS_OES 0x8E89 -#define GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS_OES 0x8E8A -#define GL_MAX_TESS_CONTROL_INPUT_COMPONENTS_OES 0x886C -#define GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS_OES 0x886D -#define GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS_OES 0x8E1E -#define GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS_OES 0x8E1F -#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS_OES 0x92CD -#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS_OES 0x92CE -#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS_OES 0x92D3 -#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS_OES 0x92D4 -#define GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS_OES 0x90CB -#define GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS_OES 0x90CC -#define GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS_OES 0x90D8 -#define GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS_OES 0x90D9 -#define GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED_OES 0x8221 -#define GL_IS_PER_PATCH_OES 0x92E7 -#define GL_REFERENCED_BY_TESS_CONTROL_SHADER_OES 0x9307 -#define GL_REFERENCED_BY_TESS_EVALUATION_SHADER_OES 0x9308 -#define GL_TESS_CONTROL_SHADER_OES 0x8E88 -#define GL_TESS_EVALUATION_SHADER_OES 0x8E87 -#define GL_TESS_CONTROL_SHADER_BIT_OES 0x00000008 -#define GL_TESS_EVALUATION_SHADER_BIT_OES 0x00000010 -typedef void (GL_APIENTRYP PFNGLPATCHPARAMETERIOESPROC) (GLenum pname, GLint value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPatchParameteriOES (GLenum pname, GLint value); -#endif -#endif /* GL_OES_tessellation_shader */ - -#ifndef GL_OES_texture_3D -#define GL_OES_texture_3D 1 -#define GL_TEXTURE_WRAP_R_OES 0x8072 -#define GL_TEXTURE_3D_OES 0x806F -#define GL_TEXTURE_BINDING_3D_OES 0x806A -#define GL_MAX_3D_TEXTURE_SIZE_OES 0x8073 -#define GL_SAMPLER_3D_OES 0x8B5F -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_OES 0x8CD4 -typedef void (GL_APIENTRYP PFNGLTEXIMAGE3DOESPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); -typedef void (GL_APIENTRYP PFNGLTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); -typedef void (GL_APIENTRYP PFNGLCOPYTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXIMAGE3DOESPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data); -typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE3DOESPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexImage3DOES (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels); -GL_APICALL void GL_APIENTRY glTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels); -GL_APICALL void GL_APIENTRY glCopyTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glCompressedTexImage3DOES (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data); -GL_APICALL void GL_APIENTRY glCompressedTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data); -GL_APICALL void GL_APIENTRY glFramebufferTexture3DOES (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset); -#endif -#endif /* GL_OES_texture_3D */ - -#ifndef GL_OES_texture_border_clamp -#define GL_OES_texture_border_clamp 1 -#define GL_TEXTURE_BORDER_COLOR_OES 0x1004 -#define GL_CLAMP_TO_BORDER_OES 0x812D -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIIVOESPROC) (GLenum target, GLenum pname, const GLint *params); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIUIVOESPROC) (GLenum target, GLenum pname, const GLuint *params); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERIIVOESPROC) (GLenum target, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERIUIVOESPROC) (GLenum target, GLenum pname, GLuint *params); -typedef void (GL_APIENTRYP PFNGLSAMPLERPARAMETERIIVOESPROC) (GLuint sampler, GLenum pname, const GLint *param); -typedef void (GL_APIENTRYP PFNGLSAMPLERPARAMETERIUIVOESPROC) (GLuint sampler, GLenum pname, const GLuint *param); -typedef void (GL_APIENTRYP PFNGLGETSAMPLERPARAMETERIIVOESPROC) (GLuint sampler, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETSAMPLERPARAMETERIUIVOESPROC) (GLuint sampler, GLenum pname, GLuint *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexParameterIivOES (GLenum target, GLenum pname, const GLint *params); -GL_APICALL void GL_APIENTRY glTexParameterIuivOES (GLenum target, GLenum pname, const GLuint *params); -GL_APICALL void GL_APIENTRY glGetTexParameterIivOES (GLenum target, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetTexParameterIuivOES (GLenum target, GLenum pname, GLuint *params); -GL_APICALL void GL_APIENTRY glSamplerParameterIivOES (GLuint sampler, GLenum pname, const GLint *param); -GL_APICALL void GL_APIENTRY glSamplerParameterIuivOES (GLuint sampler, GLenum pname, const GLuint *param); -GL_APICALL void GL_APIENTRY glGetSamplerParameterIivOES (GLuint sampler, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetSamplerParameterIuivOES (GLuint sampler, GLenum pname, GLuint *params); -#endif -#endif /* GL_OES_texture_border_clamp */ - -#ifndef GL_OES_texture_buffer -#define GL_OES_texture_buffer 1 -#define GL_TEXTURE_BUFFER_OES 0x8C2A -#define GL_TEXTURE_BUFFER_BINDING_OES 0x8C2A -#define GL_MAX_TEXTURE_BUFFER_SIZE_OES 0x8C2B -#define GL_TEXTURE_BINDING_BUFFER_OES 0x8C2C -#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING_OES 0x8C2D -#define GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT_OES 0x919F -#define GL_SAMPLER_BUFFER_OES 0x8DC2 -#define GL_INT_SAMPLER_BUFFER_OES 0x8DD0 -#define GL_UNSIGNED_INT_SAMPLER_BUFFER_OES 0x8DD8 -#define GL_IMAGE_BUFFER_OES 0x9051 -#define GL_INT_IMAGE_BUFFER_OES 0x905C -#define GL_UNSIGNED_INT_IMAGE_BUFFER_OES 0x9067 -#define GL_TEXTURE_BUFFER_OFFSET_OES 0x919D -#define GL_TEXTURE_BUFFER_SIZE_OES 0x919E -typedef void (GL_APIENTRYP PFNGLTEXBUFFEROESPROC) (GLenum target, GLenum internalformat, GLuint buffer); -typedef void (GL_APIENTRYP PFNGLTEXBUFFERRANGEOESPROC) (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexBufferOES (GLenum target, GLenum internalformat, GLuint buffer); -GL_APICALL void GL_APIENTRY glTexBufferRangeOES (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); -#endif -#endif /* GL_OES_texture_buffer */ - -#ifndef GL_OES_texture_compression_astc -#define GL_OES_texture_compression_astc 1 -#define GL_COMPRESSED_RGBA_ASTC_3x3x3_OES 0x93C0 -#define GL_COMPRESSED_RGBA_ASTC_4x3x3_OES 0x93C1 -#define GL_COMPRESSED_RGBA_ASTC_4x4x3_OES 0x93C2 -#define GL_COMPRESSED_RGBA_ASTC_4x4x4_OES 0x93C3 -#define GL_COMPRESSED_RGBA_ASTC_5x4x4_OES 0x93C4 -#define GL_COMPRESSED_RGBA_ASTC_5x5x4_OES 0x93C5 -#define GL_COMPRESSED_RGBA_ASTC_5x5x5_OES 0x93C6 -#define GL_COMPRESSED_RGBA_ASTC_6x5x5_OES 0x93C7 -#define GL_COMPRESSED_RGBA_ASTC_6x6x5_OES 0x93C8 -#define GL_COMPRESSED_RGBA_ASTC_6x6x6_OES 0x93C9 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES 0x93E0 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES 0x93E1 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES 0x93E2 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES 0x93E3 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES 0x93E4 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES 0x93E5 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES 0x93E6 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES 0x93E7 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES 0x93E8 -#define GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES 0x93E9 -#endif /* GL_OES_texture_compression_astc */ - -#ifndef GL_OES_texture_cube_map_array -#define GL_OES_texture_cube_map_array 1 -#define GL_TEXTURE_CUBE_MAP_ARRAY_OES 0x9009 -#define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY_OES 0x900A -#define GL_SAMPLER_CUBE_MAP_ARRAY_OES 0x900C -#define GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW_OES 0x900D -#define GL_INT_SAMPLER_CUBE_MAP_ARRAY_OES 0x900E -#define GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY_OES 0x900F -#define GL_IMAGE_CUBE_MAP_ARRAY_OES 0x9054 -#define GL_INT_IMAGE_CUBE_MAP_ARRAY_OES 0x905F -#define GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY_OES 0x906A -#endif /* GL_OES_texture_cube_map_array */ - -#ifndef GL_OES_texture_float -#define GL_OES_texture_float 1 -#endif /* GL_OES_texture_float */ - -#ifndef GL_OES_texture_float_linear -#define GL_OES_texture_float_linear 1 -#endif /* GL_OES_texture_float_linear */ - -#ifndef GL_OES_texture_half_float -#define GL_OES_texture_half_float 1 -#define GL_HALF_FLOAT_OES 0x8D61 -#endif /* GL_OES_texture_half_float */ - -#ifndef GL_OES_texture_half_float_linear -#define GL_OES_texture_half_float_linear 1 -#endif /* GL_OES_texture_half_float_linear */ - -#ifndef GL_OES_texture_npot -#define GL_OES_texture_npot 1 -#endif /* GL_OES_texture_npot */ - -#ifndef GL_OES_texture_stencil8 -#define GL_OES_texture_stencil8 1 -#define GL_STENCIL_INDEX_OES 0x1901 -#define GL_STENCIL_INDEX8_OES 0x8D48 -#endif /* GL_OES_texture_stencil8 */ - -#ifndef GL_OES_texture_storage_multisample_2d_array -#define GL_OES_texture_storage_multisample_2d_array 1 -#define GL_TEXTURE_2D_MULTISAMPLE_ARRAY_OES 0x9102 -#define GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY_OES 0x9105 -#define GL_SAMPLER_2D_MULTISAMPLE_ARRAY_OES 0x910B -#define GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY_OES 0x910C -#define GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY_OES 0x910D -typedef void (GL_APIENTRYP PFNGLTEXSTORAGE3DMULTISAMPLEOESPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexStorage3DMultisampleOES (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations); -#endif -#endif /* GL_OES_texture_storage_multisample_2d_array */ - -#ifndef GL_OES_texture_view -#define GL_OES_texture_view 1 -#define GL_TEXTURE_VIEW_MIN_LEVEL_OES 0x82DB -#define GL_TEXTURE_VIEW_NUM_LEVELS_OES 0x82DC -#define GL_TEXTURE_VIEW_MIN_LAYER_OES 0x82DD -#define GL_TEXTURE_VIEW_NUM_LAYERS_OES 0x82DE -#define GL_TEXTURE_IMMUTABLE_LEVELS 0x82DF -typedef void (GL_APIENTRYP PFNGLTEXTUREVIEWOESPROC) (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTextureViewOES (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); -#endif -#endif /* GL_OES_texture_view */ - -#ifndef GL_OES_vertex_array_object -#define GL_OES_vertex_array_object 1 -#define GL_VERTEX_ARRAY_BINDING_OES 0x85B5 -typedef void (GL_APIENTRYP PFNGLBINDVERTEXARRAYOESPROC) (GLuint array); -typedef void (GL_APIENTRYP PFNGLDELETEVERTEXARRAYSOESPROC) (GLsizei n, const GLuint *arrays); -typedef void (GL_APIENTRYP PFNGLGENVERTEXARRAYSOESPROC) (GLsizei n, GLuint *arrays); -typedef GLboolean (GL_APIENTRYP PFNGLISVERTEXARRAYOESPROC) (GLuint array); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBindVertexArrayOES (GLuint array); -GL_APICALL void GL_APIENTRY glDeleteVertexArraysOES (GLsizei n, const GLuint *arrays); -GL_APICALL void GL_APIENTRY glGenVertexArraysOES (GLsizei n, GLuint *arrays); -GL_APICALL GLboolean GL_APIENTRY glIsVertexArrayOES (GLuint array); -#endif -#endif /* GL_OES_vertex_array_object */ - -#ifndef GL_OES_vertex_half_float -#define GL_OES_vertex_half_float 1 -#endif /* GL_OES_vertex_half_float */ - -#ifndef GL_OES_vertex_type_10_10_10_2 -#define GL_OES_vertex_type_10_10_10_2 1 -#define GL_UNSIGNED_INT_10_10_10_2_OES 0x8DF6 -#define GL_INT_10_10_10_2_OES 0x8DF7 -#endif /* GL_OES_vertex_type_10_10_10_2 */ - -#ifndef GL_OES_viewport_array -#define GL_OES_viewport_array 1 -#define GL_MAX_VIEWPORTS_OES 0x825B -#define GL_VIEWPORT_SUBPIXEL_BITS_OES 0x825C -#define GL_VIEWPORT_BOUNDS_RANGE_OES 0x825D -#define GL_VIEWPORT_INDEX_PROVOKING_VERTEX_OES 0x825F -typedef void (GL_APIENTRYP PFNGLVIEWPORTARRAYVOESPROC) (GLuint first, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVIEWPORTINDEXEDFOESPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); -typedef void (GL_APIENTRYP PFNGLVIEWPORTINDEXEDFVOESPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLSCISSORARRAYVOESPROC) (GLuint first, GLsizei count, const GLint *v); -typedef void (GL_APIENTRYP PFNGLSCISSORINDEXEDOESPROC) (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLSCISSORINDEXEDVOESPROC) (GLuint index, const GLint *v); -typedef void (GL_APIENTRYP PFNGLDEPTHRANGEARRAYFVOESPROC) (GLuint first, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLDEPTHRANGEINDEXEDFOESPROC) (GLuint index, GLfloat n, GLfloat f); -typedef void (GL_APIENTRYP PFNGLGETFLOATI_VOESPROC) (GLenum target, GLuint index, GLfloat *data); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glViewportArrayvOES (GLuint first, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glViewportIndexedfOES (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); -GL_APICALL void GL_APIENTRY glViewportIndexedfvOES (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glScissorArrayvOES (GLuint first, GLsizei count, const GLint *v); -GL_APICALL void GL_APIENTRY glScissorIndexedOES (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glScissorIndexedvOES (GLuint index, const GLint *v); -GL_APICALL void GL_APIENTRY glDepthRangeArrayfvOES (GLuint first, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glDepthRangeIndexedfOES (GLuint index, GLfloat n, GLfloat f); -GL_APICALL void GL_APIENTRY glGetFloati_vOES (GLenum target, GLuint index, GLfloat *data); -#endif -#endif /* GL_OES_viewport_array */ - -#ifndef GL_AMD_compressed_3DC_texture -#define GL_AMD_compressed_3DC_texture 1 -#define GL_3DC_X_AMD 0x87F9 -#define GL_3DC_XY_AMD 0x87FA -#endif /* GL_AMD_compressed_3DC_texture */ - -#ifndef GL_AMD_compressed_ATC_texture -#define GL_AMD_compressed_ATC_texture 1 -#define GL_ATC_RGB_AMD 0x8C92 -#define GL_ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93 -#define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE -#endif /* GL_AMD_compressed_ATC_texture */ - -#ifndef GL_AMD_performance_monitor -#define GL_AMD_performance_monitor 1 -#define GL_COUNTER_TYPE_AMD 0x8BC0 -#define GL_COUNTER_RANGE_AMD 0x8BC1 -#define GL_UNSIGNED_INT64_AMD 0x8BC2 -#define GL_PERCENTAGE_AMD 0x8BC3 -#define GL_PERFMON_RESULT_AVAILABLE_AMD 0x8BC4 -#define GL_PERFMON_RESULT_SIZE_AMD 0x8BC5 -#define GL_PERFMON_RESULT_AMD 0x8BC6 -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORGROUPSAMDPROC) (GLint *numGroups, GLsizei groupsSize, GLuint *groups); -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORCOUNTERSAMDPROC) (GLuint group, GLint *numCounters, GLint *maxActiveCounters, GLsizei counterSize, GLuint *counters); -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORGROUPSTRINGAMDPROC) (GLuint group, GLsizei bufSize, GLsizei *length, GLchar *groupString); -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORCOUNTERSTRINGAMDPROC) (GLuint group, GLuint counter, GLsizei bufSize, GLsizei *length, GLchar *counterString); -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORCOUNTERINFOAMDPROC) (GLuint group, GLuint counter, GLenum pname, void *data); -typedef void (GL_APIENTRYP PFNGLGENPERFMONITORSAMDPROC) (GLsizei n, GLuint *monitors); -typedef void (GL_APIENTRYP PFNGLDELETEPERFMONITORSAMDPROC) (GLsizei n, GLuint *monitors); -typedef void (GL_APIENTRYP PFNGLSELECTPERFMONITORCOUNTERSAMDPROC) (GLuint monitor, GLboolean enable, GLuint group, GLint numCounters, GLuint *counterList); -typedef void (GL_APIENTRYP PFNGLBEGINPERFMONITORAMDPROC) (GLuint monitor); -typedef void (GL_APIENTRYP PFNGLENDPERFMONITORAMDPROC) (GLuint monitor); -typedef void (GL_APIENTRYP PFNGLGETPERFMONITORCOUNTERDATAAMDPROC) (GLuint monitor, GLenum pname, GLsizei dataSize, GLuint *data, GLint *bytesWritten); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGetPerfMonitorGroupsAMD (GLint *numGroups, GLsizei groupsSize, GLuint *groups); -GL_APICALL void GL_APIENTRY glGetPerfMonitorCountersAMD (GLuint group, GLint *numCounters, GLint *maxActiveCounters, GLsizei counterSize, GLuint *counters); -GL_APICALL void GL_APIENTRY glGetPerfMonitorGroupStringAMD (GLuint group, GLsizei bufSize, GLsizei *length, GLchar *groupString); -GL_APICALL void GL_APIENTRY glGetPerfMonitorCounterStringAMD (GLuint group, GLuint counter, GLsizei bufSize, GLsizei *length, GLchar *counterString); -GL_APICALL void GL_APIENTRY glGetPerfMonitorCounterInfoAMD (GLuint group, GLuint counter, GLenum pname, void *data); -GL_APICALL void GL_APIENTRY glGenPerfMonitorsAMD (GLsizei n, GLuint *monitors); -GL_APICALL void GL_APIENTRY glDeletePerfMonitorsAMD (GLsizei n, GLuint *monitors); -GL_APICALL void GL_APIENTRY glSelectPerfMonitorCountersAMD (GLuint monitor, GLboolean enable, GLuint group, GLint numCounters, GLuint *counterList); -GL_APICALL void GL_APIENTRY glBeginPerfMonitorAMD (GLuint monitor); -GL_APICALL void GL_APIENTRY glEndPerfMonitorAMD (GLuint monitor); -GL_APICALL void GL_APIENTRY glGetPerfMonitorCounterDataAMD (GLuint monitor, GLenum pname, GLsizei dataSize, GLuint *data, GLint *bytesWritten); -#endif -#endif /* GL_AMD_performance_monitor */ - -#ifndef GL_AMD_program_binary_Z400 -#define GL_AMD_program_binary_Z400 1 -#define GL_Z400_BINARY_AMD 0x8740 -#endif /* GL_AMD_program_binary_Z400 */ - -#ifndef GL_ANDROID_extension_pack_es31a -#define GL_ANDROID_extension_pack_es31a 1 -#endif /* GL_ANDROID_extension_pack_es31a */ - -#ifndef GL_ANGLE_depth_texture -#define GL_ANGLE_depth_texture 1 -#endif /* GL_ANGLE_depth_texture */ - -#ifndef GL_ANGLE_framebuffer_blit -#define GL_ANGLE_framebuffer_blit 1 -#define GL_READ_FRAMEBUFFER_ANGLE 0x8CA8 -#define GL_DRAW_FRAMEBUFFER_ANGLE 0x8CA9 -#define GL_DRAW_FRAMEBUFFER_BINDING_ANGLE 0x8CA6 -#define GL_READ_FRAMEBUFFER_BINDING_ANGLE 0x8CAA -typedef void (GL_APIENTRYP PFNGLBLITFRAMEBUFFERANGLEPROC) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBlitFramebufferANGLE (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); -#endif -#endif /* GL_ANGLE_framebuffer_blit */ - -#ifndef GL_ANGLE_framebuffer_multisample -#define GL_ANGLE_framebuffer_multisample 1 -#define GL_RENDERBUFFER_SAMPLES_ANGLE 0x8CAB -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_ANGLE 0x8D56 -#define GL_MAX_SAMPLES_ANGLE 0x8D57 -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEANGLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleANGLE (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -#endif -#endif /* GL_ANGLE_framebuffer_multisample */ - -#ifndef GL_ANGLE_instanced_arrays -#define GL_ANGLE_instanced_arrays 1 -#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE 0x88FE -typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDANGLEPROC) (GLenum mode, GLint first, GLsizei count, GLsizei primcount); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDANGLEPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBDIVISORANGLEPROC) (GLuint index, GLuint divisor); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawArraysInstancedANGLE (GLenum mode, GLint first, GLsizei count, GLsizei primcount); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedANGLE (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -GL_APICALL void GL_APIENTRY glVertexAttribDivisorANGLE (GLuint index, GLuint divisor); -#endif -#endif /* GL_ANGLE_instanced_arrays */ - -#ifndef GL_ANGLE_pack_reverse_row_order -#define GL_ANGLE_pack_reverse_row_order 1 -#define GL_PACK_REVERSE_ROW_ORDER_ANGLE 0x93A4 -#endif /* GL_ANGLE_pack_reverse_row_order */ - -#ifndef GL_ANGLE_program_binary -#define GL_ANGLE_program_binary 1 -#define GL_PROGRAM_BINARY_ANGLE 0x93A6 -#endif /* GL_ANGLE_program_binary */ - -#ifndef GL_ANGLE_texture_compression_dxt3 -#define GL_ANGLE_texture_compression_dxt3 1 -#define GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE 0x83F2 -#endif /* GL_ANGLE_texture_compression_dxt3 */ - -#ifndef GL_ANGLE_texture_compression_dxt5 -#define GL_ANGLE_texture_compression_dxt5 1 -#define GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE 0x83F3 -#endif /* GL_ANGLE_texture_compression_dxt5 */ - -#ifndef GL_ANGLE_texture_usage -#define GL_ANGLE_texture_usage 1 -#define GL_TEXTURE_USAGE_ANGLE 0x93A2 -#define GL_FRAMEBUFFER_ATTACHMENT_ANGLE 0x93A3 -#endif /* GL_ANGLE_texture_usage */ - -#ifndef GL_ANGLE_translated_shader_source -#define GL_ANGLE_translated_shader_source 1 -#define GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE 0x93A0 -typedef void (GL_APIENTRYP PFNGLGETTRANSLATEDSHADERSOURCEANGLEPROC) (GLuint shader, GLsizei bufsize, GLsizei *length, GLchar *source); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGetTranslatedShaderSourceANGLE (GLuint shader, GLsizei bufsize, GLsizei *length, GLchar *source); -#endif -#endif /* GL_ANGLE_translated_shader_source */ - -#ifndef GL_APPLE_clip_distance -#define GL_APPLE_clip_distance 1 -#define GL_MAX_CLIP_DISTANCES_APPLE 0x0D32 -#define GL_CLIP_DISTANCE0_APPLE 0x3000 -#define GL_CLIP_DISTANCE1_APPLE 0x3001 -#define GL_CLIP_DISTANCE2_APPLE 0x3002 -#define GL_CLIP_DISTANCE3_APPLE 0x3003 -#define GL_CLIP_DISTANCE4_APPLE 0x3004 -#define GL_CLIP_DISTANCE5_APPLE 0x3005 -#define GL_CLIP_DISTANCE6_APPLE 0x3006 -#define GL_CLIP_DISTANCE7_APPLE 0x3007 -#endif /* GL_APPLE_clip_distance */ - -#ifndef GL_APPLE_color_buffer_packed_float -#define GL_APPLE_color_buffer_packed_float 1 -#endif /* GL_APPLE_color_buffer_packed_float */ - -#ifndef GL_APPLE_copy_texture_levels -#define GL_APPLE_copy_texture_levels 1 -typedef void (GL_APIENTRYP PFNGLCOPYTEXTURELEVELSAPPLEPROC) (GLuint destinationTexture, GLuint sourceTexture, GLint sourceBaseLevel, GLsizei sourceLevelCount); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCopyTextureLevelsAPPLE (GLuint destinationTexture, GLuint sourceTexture, GLint sourceBaseLevel, GLsizei sourceLevelCount); -#endif -#endif /* GL_APPLE_copy_texture_levels */ - -#ifndef GL_APPLE_framebuffer_multisample -#define GL_APPLE_framebuffer_multisample 1 -#define GL_RENDERBUFFER_SAMPLES_APPLE 0x8CAB -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_APPLE 0x8D56 -#define GL_MAX_SAMPLES_APPLE 0x8D57 -#define GL_READ_FRAMEBUFFER_APPLE 0x8CA8 -#define GL_DRAW_FRAMEBUFFER_APPLE 0x8CA9 -#define GL_DRAW_FRAMEBUFFER_BINDING_APPLE 0x8CA6 -#define GL_READ_FRAMEBUFFER_BINDING_APPLE 0x8CAA -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEAPPLEPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLRESOLVEMULTISAMPLEFRAMEBUFFERAPPLEPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleAPPLE (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glResolveMultisampleFramebufferAPPLE (void); -#endif -#endif /* GL_APPLE_framebuffer_multisample */ - -#ifndef GL_APPLE_rgb_422 -#define GL_APPLE_rgb_422 1 -#define GL_RGB_422_APPLE 0x8A1F -#define GL_UNSIGNED_SHORT_8_8_APPLE 0x85BA -#define GL_UNSIGNED_SHORT_8_8_REV_APPLE 0x85BB -#define GL_RGB_RAW_422_APPLE 0x8A51 -#endif /* GL_APPLE_rgb_422 */ - -#ifndef GL_APPLE_sync -#define GL_APPLE_sync 1 -#define GL_SYNC_OBJECT_APPLE 0x8A53 -#define GL_MAX_SERVER_WAIT_TIMEOUT_APPLE 0x9111 -#define GL_OBJECT_TYPE_APPLE 0x9112 -#define GL_SYNC_CONDITION_APPLE 0x9113 -#define GL_SYNC_STATUS_APPLE 0x9114 -#define GL_SYNC_FLAGS_APPLE 0x9115 -#define GL_SYNC_FENCE_APPLE 0x9116 -#define GL_SYNC_GPU_COMMANDS_COMPLETE_APPLE 0x9117 -#define GL_UNSIGNALED_APPLE 0x9118 -#define GL_SIGNALED_APPLE 0x9119 -#define GL_ALREADY_SIGNALED_APPLE 0x911A -#define GL_TIMEOUT_EXPIRED_APPLE 0x911B -#define GL_CONDITION_SATISFIED_APPLE 0x911C -#define GL_WAIT_FAILED_APPLE 0x911D -#define GL_SYNC_FLUSH_COMMANDS_BIT_APPLE 0x00000001 -#define GL_TIMEOUT_IGNORED_APPLE 0xFFFFFFFFFFFFFFFFull -typedef GLsync (GL_APIENTRYP PFNGLFENCESYNCAPPLEPROC) (GLenum condition, GLbitfield flags); -typedef GLboolean (GL_APIENTRYP PFNGLISSYNCAPPLEPROC) (GLsync sync); -typedef void (GL_APIENTRYP PFNGLDELETESYNCAPPLEPROC) (GLsync sync); -typedef GLenum (GL_APIENTRYP PFNGLCLIENTWAITSYNCAPPLEPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); -typedef void (GL_APIENTRYP PFNGLWAITSYNCAPPLEPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout); -typedef void (GL_APIENTRYP PFNGLGETINTEGER64VAPPLEPROC) (GLenum pname, GLint64 *params); -typedef void (GL_APIENTRYP PFNGLGETSYNCIVAPPLEPROC) (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLsync GL_APIENTRY glFenceSyncAPPLE (GLenum condition, GLbitfield flags); -GL_APICALL GLboolean GL_APIENTRY glIsSyncAPPLE (GLsync sync); -GL_APICALL void GL_APIENTRY glDeleteSyncAPPLE (GLsync sync); -GL_APICALL GLenum GL_APIENTRY glClientWaitSyncAPPLE (GLsync sync, GLbitfield flags, GLuint64 timeout); -GL_APICALL void GL_APIENTRY glWaitSyncAPPLE (GLsync sync, GLbitfield flags, GLuint64 timeout); -GL_APICALL void GL_APIENTRY glGetInteger64vAPPLE (GLenum pname, GLint64 *params); -GL_APICALL void GL_APIENTRY glGetSyncivAPPLE (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values); -#endif -#endif /* GL_APPLE_sync */ - -#ifndef GL_APPLE_texture_format_BGRA8888 -#define GL_APPLE_texture_format_BGRA8888 1 -#define GL_BGRA_EXT 0x80E1 -#define GL_BGRA8_EXT 0x93A1 -#endif /* GL_APPLE_texture_format_BGRA8888 */ - -#ifndef GL_APPLE_texture_max_level -#define GL_APPLE_texture_max_level 1 -#define GL_TEXTURE_MAX_LEVEL_APPLE 0x813D -#endif /* GL_APPLE_texture_max_level */ - -#ifndef GL_APPLE_texture_packed_float -#define GL_APPLE_texture_packed_float 1 -#define GL_UNSIGNED_INT_10F_11F_11F_REV_APPLE 0x8C3B -#define GL_UNSIGNED_INT_5_9_9_9_REV_APPLE 0x8C3E -#define GL_R11F_G11F_B10F_APPLE 0x8C3A -#define GL_RGB9_E5_APPLE 0x8C3D -#endif /* GL_APPLE_texture_packed_float */ - -#ifndef GL_ARM_mali_program_binary -#define GL_ARM_mali_program_binary 1 -#define GL_MALI_PROGRAM_BINARY_ARM 0x8F61 -#endif /* GL_ARM_mali_program_binary */ - -#ifndef GL_ARM_mali_shader_binary -#define GL_ARM_mali_shader_binary 1 -#define GL_MALI_SHADER_BINARY_ARM 0x8F60 -#endif /* GL_ARM_mali_shader_binary */ - -#ifndef GL_ARM_rgba8 -#define GL_ARM_rgba8 1 -#endif /* GL_ARM_rgba8 */ - -#ifndef GL_ARM_shader_framebuffer_fetch -#define GL_ARM_shader_framebuffer_fetch 1 -#define GL_FETCH_PER_SAMPLE_ARM 0x8F65 -#define GL_FRAGMENT_SHADER_FRAMEBUFFER_FETCH_MRT_ARM 0x8F66 -#endif /* GL_ARM_shader_framebuffer_fetch */ - -#ifndef GL_ARM_shader_framebuffer_fetch_depth_stencil -#define GL_ARM_shader_framebuffer_fetch_depth_stencil 1 -#endif /* GL_ARM_shader_framebuffer_fetch_depth_stencil */ - -#ifndef GL_DMP_program_binary -#define GL_DMP_program_binary 1 -#define GL_SMAPHS30_PROGRAM_BINARY_DMP 0x9251 -#define GL_SMAPHS_PROGRAM_BINARY_DMP 0x9252 -#define GL_DMP_PROGRAM_BINARY_DMP 0x9253 -#endif /* GL_DMP_program_binary */ - -#ifndef GL_DMP_shader_binary -#define GL_DMP_shader_binary 1 -#define GL_SHADER_BINARY_DMP 0x9250 -#endif /* GL_DMP_shader_binary */ - -#ifndef GL_EXT_YUV_target -#define GL_EXT_YUV_target 1 -#define GL_SAMPLER_EXTERNAL_2D_Y2Y_EXT 0x8BE7 -#endif /* GL_EXT_YUV_target */ - -#ifndef GL_EXT_base_instance -#define GL_EXT_base_instance 1 -typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEEXTPROC) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawArraysInstancedBaseInstanceEXT (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseInstanceEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLuint baseinstance); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseVertexBaseInstanceEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance); -#endif -#endif /* GL_EXT_base_instance */ - -#ifndef GL_EXT_blend_func_extended -#define GL_EXT_blend_func_extended 1 -#define GL_SRC1_COLOR_EXT 0x88F9 -#define GL_SRC1_ALPHA_EXT 0x8589 -#define GL_ONE_MINUS_SRC1_COLOR_EXT 0x88FA -#define GL_ONE_MINUS_SRC1_ALPHA_EXT 0x88FB -#define GL_SRC_ALPHA_SATURATE_EXT 0x0308 -#define GL_LOCATION_INDEX_EXT 0x930F -#define GL_MAX_DUAL_SOURCE_DRAW_BUFFERS_EXT 0x88FC -typedef void (GL_APIENTRYP PFNGLBINDFRAGDATALOCATIONINDEXEDEXTPROC) (GLuint program, GLuint colorNumber, GLuint index, const GLchar *name); -typedef void (GL_APIENTRYP PFNGLBINDFRAGDATALOCATIONEXTPROC) (GLuint program, GLuint color, const GLchar *name); -typedef GLint (GL_APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONINDEXEXTPROC) (GLuint program, GLenum programInterface, const GLchar *name); -typedef GLint (GL_APIENTRYP PFNGLGETFRAGDATAINDEXEXTPROC) (GLuint program, const GLchar *name); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBindFragDataLocationIndexedEXT (GLuint program, GLuint colorNumber, GLuint index, const GLchar *name); -GL_APICALL void GL_APIENTRY glBindFragDataLocationEXT (GLuint program, GLuint color, const GLchar *name); -GL_APICALL GLint GL_APIENTRY glGetProgramResourceLocationIndexEXT (GLuint program, GLenum programInterface, const GLchar *name); -GL_APICALL GLint GL_APIENTRY glGetFragDataIndexEXT (GLuint program, const GLchar *name); -#endif -#endif /* GL_EXT_blend_func_extended */ - -#ifndef GL_EXT_blend_minmax -#define GL_EXT_blend_minmax 1 -#define GL_MIN_EXT 0x8007 -#define GL_MAX_EXT 0x8008 -#endif /* GL_EXT_blend_minmax */ - -#ifndef GL_EXT_buffer_storage -#define GL_EXT_buffer_storage 1 -#define GL_MAP_READ_BIT 0x0001 -#define GL_MAP_WRITE_BIT 0x0002 -#define GL_MAP_PERSISTENT_BIT_EXT 0x0040 -#define GL_MAP_COHERENT_BIT_EXT 0x0080 -#define GL_DYNAMIC_STORAGE_BIT_EXT 0x0100 -#define GL_CLIENT_STORAGE_BIT_EXT 0x0200 -#define GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT_EXT 0x00004000 -#define GL_BUFFER_IMMUTABLE_STORAGE_EXT 0x821F -#define GL_BUFFER_STORAGE_FLAGS_EXT 0x8220 -typedef void (GL_APIENTRYP PFNGLBUFFERSTORAGEEXTPROC) (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBufferStorageEXT (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags); -#endif -#endif /* GL_EXT_buffer_storage */ - -#ifndef GL_EXT_clear_texture -#define GL_EXT_clear_texture 1 -typedef void (GL_APIENTRYP PFNGLCLEARTEXIMAGEEXTPROC) (GLuint texture, GLint level, GLenum format, GLenum type, const void *data); -typedef void (GL_APIENTRYP PFNGLCLEARTEXSUBIMAGEEXTPROC) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glClearTexImageEXT (GLuint texture, GLint level, GLenum format, GLenum type, const void *data); -GL_APICALL void GL_APIENTRY glClearTexSubImageEXT (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *data); -#endif -#endif /* GL_EXT_clear_texture */ - -#ifndef GL_EXT_clip_cull_distance -#define GL_EXT_clip_cull_distance 1 -#define GL_MAX_CLIP_DISTANCES_EXT 0x0D32 -#define GL_MAX_CULL_DISTANCES_EXT 0x82F9 -#define GL_MAX_COMBINED_CLIP_AND_CULL_DISTANCES_EXT 0x82FA -#define GL_CLIP_DISTANCE0_EXT 0x3000 -#define GL_CLIP_DISTANCE1_EXT 0x3001 -#define GL_CLIP_DISTANCE2_EXT 0x3002 -#define GL_CLIP_DISTANCE3_EXT 0x3003 -#define GL_CLIP_DISTANCE4_EXT 0x3004 -#define GL_CLIP_DISTANCE5_EXT 0x3005 -#define GL_CLIP_DISTANCE6_EXT 0x3006 -#define GL_CLIP_DISTANCE7_EXT 0x3007 -#endif /* GL_EXT_clip_cull_distance */ - -#ifndef GL_EXT_color_buffer_float -#define GL_EXT_color_buffer_float 1 -#endif /* GL_EXT_color_buffer_float */ - -#ifndef GL_EXT_color_buffer_half_float -#define GL_EXT_color_buffer_half_float 1 -#define GL_RGBA16F_EXT 0x881A -#define GL_RGB16F_EXT 0x881B -#define GL_RG16F_EXT 0x822F -#define GL_R16F_EXT 0x822D -#define GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT 0x8211 -#define GL_UNSIGNED_NORMALIZED_EXT 0x8C17 -#endif /* GL_EXT_color_buffer_half_float */ - -#ifndef GL_EXT_conservative_depth -#define GL_EXT_conservative_depth 1 -#endif /* GL_EXT_conservative_depth */ - -#ifndef GL_EXT_copy_image -#define GL_EXT_copy_image 1 -typedef void (GL_APIENTRYP PFNGLCOPYIMAGESUBDATAEXTPROC) (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCopyImageSubDataEXT (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth); -#endif -#endif /* GL_EXT_copy_image */ - -#ifndef GL_EXT_debug_label -#define GL_EXT_debug_label 1 -#define GL_PROGRAM_PIPELINE_OBJECT_EXT 0x8A4F -#define GL_PROGRAM_OBJECT_EXT 0x8B40 -#define GL_SHADER_OBJECT_EXT 0x8B48 -#define GL_BUFFER_OBJECT_EXT 0x9151 -#define GL_QUERY_OBJECT_EXT 0x9153 -#define GL_VERTEX_ARRAY_OBJECT_EXT 0x9154 -#define GL_TRANSFORM_FEEDBACK 0x8E22 -typedef void (GL_APIENTRYP PFNGLLABELOBJECTEXTPROC) (GLenum type, GLuint object, GLsizei length, const GLchar *label); -typedef void (GL_APIENTRYP PFNGLGETOBJECTLABELEXTPROC) (GLenum type, GLuint object, GLsizei bufSize, GLsizei *length, GLchar *label); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glLabelObjectEXT (GLenum type, GLuint object, GLsizei length, const GLchar *label); -GL_APICALL void GL_APIENTRY glGetObjectLabelEXT (GLenum type, GLuint object, GLsizei bufSize, GLsizei *length, GLchar *label); -#endif -#endif /* GL_EXT_debug_label */ - -#ifndef GL_EXT_debug_marker -#define GL_EXT_debug_marker 1 -typedef void (GL_APIENTRYP PFNGLINSERTEVENTMARKEREXTPROC) (GLsizei length, const GLchar *marker); -typedef void (GL_APIENTRYP PFNGLPUSHGROUPMARKEREXTPROC) (GLsizei length, const GLchar *marker); -typedef void (GL_APIENTRYP PFNGLPOPGROUPMARKEREXTPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glInsertEventMarkerEXT (GLsizei length, const GLchar *marker); -GL_APICALL void GL_APIENTRY glPushGroupMarkerEXT (GLsizei length, const GLchar *marker); -GL_APICALL void GL_APIENTRY glPopGroupMarkerEXT (void); -#endif -#endif /* GL_EXT_debug_marker */ - -#ifndef GL_EXT_discard_framebuffer -#define GL_EXT_discard_framebuffer 1 -#define GL_COLOR_EXT 0x1800 -#define GL_DEPTH_EXT 0x1801 -#define GL_STENCIL_EXT 0x1802 -typedef void (GL_APIENTRYP PFNGLDISCARDFRAMEBUFFEREXTPROC) (GLenum target, GLsizei numAttachments, const GLenum *attachments); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDiscardFramebufferEXT (GLenum target, GLsizei numAttachments, const GLenum *attachments); -#endif -#endif /* GL_EXT_discard_framebuffer */ - -#ifndef GL_EXT_disjoint_timer_query -#define GL_EXT_disjoint_timer_query 1 -#define GL_QUERY_COUNTER_BITS_EXT 0x8864 -#define GL_CURRENT_QUERY_EXT 0x8865 -#define GL_QUERY_RESULT_EXT 0x8866 -#define GL_QUERY_RESULT_AVAILABLE_EXT 0x8867 -#define GL_TIME_ELAPSED_EXT 0x88BF -#define GL_TIMESTAMP_EXT 0x8E28 -#define GL_GPU_DISJOINT_EXT 0x8FBB -typedef void (GL_APIENTRYP PFNGLGENQUERIESEXTPROC) (GLsizei n, GLuint *ids); -typedef void (GL_APIENTRYP PFNGLDELETEQUERIESEXTPROC) (GLsizei n, const GLuint *ids); -typedef GLboolean (GL_APIENTRYP PFNGLISQUERYEXTPROC) (GLuint id); -typedef void (GL_APIENTRYP PFNGLBEGINQUERYEXTPROC) (GLenum target, GLuint id); -typedef void (GL_APIENTRYP PFNGLENDQUERYEXTPROC) (GLenum target); -typedef void (GL_APIENTRYP PFNGLQUERYCOUNTEREXTPROC) (GLuint id, GLenum target); -typedef void (GL_APIENTRYP PFNGLGETQUERYIVEXTPROC) (GLenum target, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETQUERYOBJECTIVEXTPROC) (GLuint id, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETQUERYOBJECTUIVEXTPROC) (GLuint id, GLenum pname, GLuint *params); -typedef void (GL_APIENTRYP PFNGLGETQUERYOBJECTI64VEXTPROC) (GLuint id, GLenum pname, GLint64 *params); -typedef void (GL_APIENTRYP PFNGLGETQUERYOBJECTUI64VEXTPROC) (GLuint id, GLenum pname, GLuint64 *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGenQueriesEXT (GLsizei n, GLuint *ids); -GL_APICALL void GL_APIENTRY glDeleteQueriesEXT (GLsizei n, const GLuint *ids); -GL_APICALL GLboolean GL_APIENTRY glIsQueryEXT (GLuint id); -GL_APICALL void GL_APIENTRY glBeginQueryEXT (GLenum target, GLuint id); -GL_APICALL void GL_APIENTRY glEndQueryEXT (GLenum target); -GL_APICALL void GL_APIENTRY glQueryCounterEXT (GLuint id, GLenum target); -GL_APICALL void GL_APIENTRY glGetQueryivEXT (GLenum target, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetQueryObjectivEXT (GLuint id, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetQueryObjectuivEXT (GLuint id, GLenum pname, GLuint *params); -GL_APICALL void GL_APIENTRY glGetQueryObjecti64vEXT (GLuint id, GLenum pname, GLint64 *params); -GL_APICALL void GL_APIENTRY glGetQueryObjectui64vEXT (GLuint id, GLenum pname, GLuint64 *params); -#endif -#endif /* GL_EXT_disjoint_timer_query */ - -#ifndef GL_EXT_draw_buffers -#define GL_EXT_draw_buffers 1 -#define GL_MAX_COLOR_ATTACHMENTS_EXT 0x8CDF -#define GL_MAX_DRAW_BUFFERS_EXT 0x8824 -#define GL_DRAW_BUFFER0_EXT 0x8825 -#define GL_DRAW_BUFFER1_EXT 0x8826 -#define GL_DRAW_BUFFER2_EXT 0x8827 -#define GL_DRAW_BUFFER3_EXT 0x8828 -#define GL_DRAW_BUFFER4_EXT 0x8829 -#define GL_DRAW_BUFFER5_EXT 0x882A -#define GL_DRAW_BUFFER6_EXT 0x882B -#define GL_DRAW_BUFFER7_EXT 0x882C -#define GL_DRAW_BUFFER8_EXT 0x882D -#define GL_DRAW_BUFFER9_EXT 0x882E -#define GL_DRAW_BUFFER10_EXT 0x882F -#define GL_DRAW_BUFFER11_EXT 0x8830 -#define GL_DRAW_BUFFER12_EXT 0x8831 -#define GL_DRAW_BUFFER13_EXT 0x8832 -#define GL_DRAW_BUFFER14_EXT 0x8833 -#define GL_DRAW_BUFFER15_EXT 0x8834 -#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0 -#define GL_COLOR_ATTACHMENT1_EXT 0x8CE1 -#define GL_COLOR_ATTACHMENT2_EXT 0x8CE2 -#define GL_COLOR_ATTACHMENT3_EXT 0x8CE3 -#define GL_COLOR_ATTACHMENT4_EXT 0x8CE4 -#define GL_COLOR_ATTACHMENT5_EXT 0x8CE5 -#define GL_COLOR_ATTACHMENT6_EXT 0x8CE6 -#define GL_COLOR_ATTACHMENT7_EXT 0x8CE7 -#define GL_COLOR_ATTACHMENT8_EXT 0x8CE8 -#define GL_COLOR_ATTACHMENT9_EXT 0x8CE9 -#define GL_COLOR_ATTACHMENT10_EXT 0x8CEA -#define GL_COLOR_ATTACHMENT11_EXT 0x8CEB -#define GL_COLOR_ATTACHMENT12_EXT 0x8CEC -#define GL_COLOR_ATTACHMENT13_EXT 0x8CED -#define GL_COLOR_ATTACHMENT14_EXT 0x8CEE -#define GL_COLOR_ATTACHMENT15_EXT 0x8CEF -typedef void (GL_APIENTRYP PFNGLDRAWBUFFERSEXTPROC) (GLsizei n, const GLenum *bufs); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawBuffersEXT (GLsizei n, const GLenum *bufs); -#endif -#endif /* GL_EXT_draw_buffers */ - -#ifndef GL_EXT_draw_buffers_indexed -#define GL_EXT_draw_buffers_indexed 1 -typedef void (GL_APIENTRYP PFNGLENABLEIEXTPROC) (GLenum target, GLuint index); -typedef void (GL_APIENTRYP PFNGLDISABLEIEXTPROC) (GLenum target, GLuint index); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONIEXTPROC) (GLuint buf, GLenum mode); -typedef void (GL_APIENTRYP PFNGLBLENDEQUATIONSEPARATEIEXTPROC) (GLuint buf, GLenum modeRGB, GLenum modeAlpha); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCIEXTPROC) (GLuint buf, GLenum src, GLenum dst); -typedef void (GL_APIENTRYP PFNGLBLENDFUNCSEPARATEIEXTPROC) (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); -typedef void (GL_APIENTRYP PFNGLCOLORMASKIEXTPROC) (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); -typedef GLboolean (GL_APIENTRYP PFNGLISENABLEDIEXTPROC) (GLenum target, GLuint index); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glEnableiEXT (GLenum target, GLuint index); -GL_APICALL void GL_APIENTRY glDisableiEXT (GLenum target, GLuint index); -GL_APICALL void GL_APIENTRY glBlendEquationiEXT (GLuint buf, GLenum mode); -GL_APICALL void GL_APIENTRY glBlendEquationSeparateiEXT (GLuint buf, GLenum modeRGB, GLenum modeAlpha); -GL_APICALL void GL_APIENTRY glBlendFunciEXT (GLuint buf, GLenum src, GLenum dst); -GL_APICALL void GL_APIENTRY glBlendFuncSeparateiEXT (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha); -GL_APICALL void GL_APIENTRY glColorMaskiEXT (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a); -GL_APICALL GLboolean GL_APIENTRY glIsEnablediEXT (GLenum target, GLuint index); -#endif -#endif /* GL_EXT_draw_buffers_indexed */ - -#ifndef GL_EXT_draw_elements_base_vertex -#define GL_EXT_draw_elements_base_vertex 1 -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXEXTPROC) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); -typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXEXTPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawElementsBaseVertexEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); -GL_APICALL void GL_APIENTRY glDrawRangeElementsBaseVertexEXT (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices, GLint basevertex); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedBaseVertexEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount, GLint basevertex); -GL_APICALL void GL_APIENTRY glMultiDrawElementsBaseVertexEXT (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount, const GLint *basevertex); -#endif -#endif /* GL_EXT_draw_elements_base_vertex */ - -#ifndef GL_EXT_draw_instanced -#define GL_EXT_draw_instanced 1 -typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDEXTPROC) (GLenum mode, GLint start, GLsizei count, GLsizei primcount); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawArraysInstancedEXT (GLenum mode, GLint start, GLsizei count, GLsizei primcount); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedEXT (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -#endif -#endif /* GL_EXT_draw_instanced */ - -#ifndef GL_EXT_draw_transform_feedback -#define GL_EXT_draw_transform_feedback 1 -typedef void (GL_APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKEXTPROC) (GLenum mode, GLuint id); -typedef void (GL_APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDEXTPROC) (GLenum mode, GLuint id, GLsizei instancecount); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawTransformFeedbackEXT (GLenum mode, GLuint id); -GL_APICALL void GL_APIENTRY glDrawTransformFeedbackInstancedEXT (GLenum mode, GLuint id, GLsizei instancecount); -#endif -#endif /* GL_EXT_draw_transform_feedback */ - -#ifndef GL_EXT_float_blend -#define GL_EXT_float_blend 1 -#endif /* GL_EXT_float_blend */ - -#ifndef GL_EXT_geometry_point_size -#define GL_EXT_geometry_point_size 1 -#endif /* GL_EXT_geometry_point_size */ - -#ifndef GL_EXT_geometry_shader -#define GL_EXT_geometry_shader 1 -#define GL_GEOMETRY_SHADER_EXT 0x8DD9 -#define GL_GEOMETRY_SHADER_BIT_EXT 0x00000004 -#define GL_GEOMETRY_LINKED_VERTICES_OUT_EXT 0x8916 -#define GL_GEOMETRY_LINKED_INPUT_TYPE_EXT 0x8917 -#define GL_GEOMETRY_LINKED_OUTPUT_TYPE_EXT 0x8918 -#define GL_GEOMETRY_SHADER_INVOCATIONS_EXT 0x887F -#define GL_LAYER_PROVOKING_VERTEX_EXT 0x825E -#define GL_LINES_ADJACENCY_EXT 0x000A -#define GL_LINE_STRIP_ADJACENCY_EXT 0x000B -#define GL_TRIANGLES_ADJACENCY_EXT 0x000C -#define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0x000D -#define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT 0x8DDF -#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS_EXT 0x8A2C -#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS_EXT 0x8A32 -#define GL_MAX_GEOMETRY_INPUT_COMPONENTS_EXT 0x9123 -#define GL_MAX_GEOMETRY_OUTPUT_COMPONENTS_EXT 0x9124 -#define GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT 0x8DE0 -#define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT 0x8DE1 -#define GL_MAX_GEOMETRY_SHADER_INVOCATIONS_EXT 0x8E5A -#define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT 0x8C29 -#define GL_MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS_EXT 0x92CF -#define GL_MAX_GEOMETRY_ATOMIC_COUNTERS_EXT 0x92D5 -#define GL_MAX_GEOMETRY_IMAGE_UNIFORMS_EXT 0x90CD -#define GL_MAX_GEOMETRY_SHADER_STORAGE_BLOCKS_EXT 0x90D7 -#define GL_FIRST_VERTEX_CONVENTION_EXT 0x8E4D -#define GL_LAST_VERTEX_CONVENTION_EXT 0x8E4E -#define GL_UNDEFINED_VERTEX_EXT 0x8260 -#define GL_PRIMITIVES_GENERATED_EXT 0x8C87 -#define GL_FRAMEBUFFER_DEFAULT_LAYERS_EXT 0x9312 -#define GL_MAX_FRAMEBUFFER_LAYERS_EXT 0x9317 -#define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT 0x8DA8 -#define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT 0x8DA7 -#define GL_REFERENCED_BY_GEOMETRY_SHADER_EXT 0x9309 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTUREEXTPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferTextureEXT (GLenum target, GLenum attachment, GLuint texture, GLint level); -#endif -#endif /* GL_EXT_geometry_shader */ - -#ifndef GL_EXT_gpu_shader5 -#define GL_EXT_gpu_shader5 1 -#endif /* GL_EXT_gpu_shader5 */ - -#ifndef GL_EXT_instanced_arrays -#define GL_EXT_instanced_arrays 1 -#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_EXT 0x88FE -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBDIVISOREXTPROC) (GLuint index, GLuint divisor); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glVertexAttribDivisorEXT (GLuint index, GLuint divisor); -#endif -#endif /* GL_EXT_instanced_arrays */ - -#ifndef GL_EXT_map_buffer_range -#define GL_EXT_map_buffer_range 1 -#define GL_MAP_READ_BIT_EXT 0x0001 -#define GL_MAP_WRITE_BIT_EXT 0x0002 -#define GL_MAP_INVALIDATE_RANGE_BIT_EXT 0x0004 -#define GL_MAP_INVALIDATE_BUFFER_BIT_EXT 0x0008 -#define GL_MAP_FLUSH_EXPLICIT_BIT_EXT 0x0010 -#define GL_MAP_UNSYNCHRONIZED_BIT_EXT 0x0020 -typedef void *(GL_APIENTRYP PFNGLMAPBUFFERRANGEEXTPROC) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access); -typedef void (GL_APIENTRYP PFNGLFLUSHMAPPEDBUFFERRANGEEXTPROC) (GLenum target, GLintptr offset, GLsizeiptr length); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void *GL_APIENTRY glMapBufferRangeEXT (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access); -GL_APICALL void GL_APIENTRY glFlushMappedBufferRangeEXT (GLenum target, GLintptr offset, GLsizeiptr length); -#endif -#endif /* GL_EXT_map_buffer_range */ - -#ifndef GL_EXT_multi_draw_arrays -#define GL_EXT_multi_draw_arrays 1 -typedef void (GL_APIENTRYP PFNGLMULTIDRAWARRAYSEXTPROC) (GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount); -typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSEXTPROC) (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glMultiDrawArraysEXT (GLenum mode, const GLint *first, const GLsizei *count, GLsizei primcount); -GL_APICALL void GL_APIENTRY glMultiDrawElementsEXT (GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei primcount); -#endif -#endif /* GL_EXT_multi_draw_arrays */ - -#ifndef GL_EXT_multi_draw_indirect -#define GL_EXT_multi_draw_indirect 1 -typedef void (GL_APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTEXTPROC) (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride); -typedef void (GL_APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTEXTPROC) (GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glMultiDrawArraysIndirectEXT (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride); -GL_APICALL void GL_APIENTRY glMultiDrawElementsIndirectEXT (GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride); -#endif -#endif /* GL_EXT_multi_draw_indirect */ - -#ifndef GL_EXT_multisampled_compatibility -#define GL_EXT_multisampled_compatibility 1 -#define GL_MULTISAMPLE_EXT 0x809D -#define GL_SAMPLE_ALPHA_TO_ONE_EXT 0x809F -#endif /* GL_EXT_multisampled_compatibility */ - -#ifndef GL_EXT_multisampled_render_to_texture -#define GL_EXT_multisampled_render_to_texture 1 -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT 0x8D6C -#define GL_RENDERBUFFER_SAMPLES_EXT 0x8CAB -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT 0x8D56 -#define GL_MAX_SAMPLES_EXT 0x8D57 -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleEXT (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glFramebufferTexture2DMultisampleEXT (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples); -#endif -#endif /* GL_EXT_multisampled_render_to_texture */ - -#ifndef GL_EXT_multiview_draw_buffers -#define GL_EXT_multiview_draw_buffers 1 -#define GL_COLOR_ATTACHMENT_EXT 0x90F0 -#define GL_MULTIVIEW_EXT 0x90F1 -#define GL_DRAW_BUFFER_EXT 0x0C01 -#define GL_READ_BUFFER_EXT 0x0C02 -#define GL_MAX_MULTIVIEW_BUFFERS_EXT 0x90F2 -typedef void (GL_APIENTRYP PFNGLREADBUFFERINDEXEDEXTPROC) (GLenum src, GLint index); -typedef void (GL_APIENTRYP PFNGLDRAWBUFFERSINDEXEDEXTPROC) (GLint n, const GLenum *location, const GLint *indices); -typedef void (GL_APIENTRYP PFNGLGETINTEGERI_VEXTPROC) (GLenum target, GLuint index, GLint *data); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glReadBufferIndexedEXT (GLenum src, GLint index); -GL_APICALL void GL_APIENTRY glDrawBuffersIndexedEXT (GLint n, const GLenum *location, const GLint *indices); -GL_APICALL void GL_APIENTRY glGetIntegeri_vEXT (GLenum target, GLuint index, GLint *data); -#endif -#endif /* GL_EXT_multiview_draw_buffers */ - -#ifndef GL_EXT_occlusion_query_boolean -#define GL_EXT_occlusion_query_boolean 1 -#define GL_ANY_SAMPLES_PASSED_EXT 0x8C2F -#define GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT 0x8D6A -#endif /* GL_EXT_occlusion_query_boolean */ - -#ifndef GL_EXT_polygon_offset_clamp -#define GL_EXT_polygon_offset_clamp 1 -#define GL_POLYGON_OFFSET_CLAMP_EXT 0x8E1B -typedef void (GL_APIENTRYP PFNGLPOLYGONOFFSETCLAMPEXTPROC) (GLfloat factor, GLfloat units, GLfloat clamp); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPolygonOffsetClampEXT (GLfloat factor, GLfloat units, GLfloat clamp); -#endif -#endif /* GL_EXT_polygon_offset_clamp */ - -#ifndef GL_EXT_post_depth_coverage -#define GL_EXT_post_depth_coverage 1 -#endif /* GL_EXT_post_depth_coverage */ - -#ifndef GL_EXT_primitive_bounding_box -#define GL_EXT_primitive_bounding_box 1 -#define GL_PRIMITIVE_BOUNDING_BOX_EXT 0x92BE -typedef void (GL_APIENTRYP PFNGLPRIMITIVEBOUNDINGBOXEXTPROC) (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPrimitiveBoundingBoxEXT (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW); -#endif -#endif /* GL_EXT_primitive_bounding_box */ - -#ifndef GL_EXT_protected_textures -#define GL_EXT_protected_textures 1 -#define GL_CONTEXT_FLAG_PROTECTED_CONTENT_BIT_EXT 0x00000010 -#define GL_TEXTURE_PROTECTED_EXT 0x8BFA -#endif /* GL_EXT_protected_textures */ - -#ifndef GL_EXT_pvrtc_sRGB -#define GL_EXT_pvrtc_sRGB 1 -#define GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT 0x8A54 -#define GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT 0x8A55 -#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT 0x8A56 -#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT 0x8A57 -#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV2_IMG 0x93F0 -#define GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV2_IMG 0x93F1 -#endif /* GL_EXT_pvrtc_sRGB */ - -#ifndef GL_EXT_raster_multisample -#define GL_EXT_raster_multisample 1 -#define GL_RASTER_MULTISAMPLE_EXT 0x9327 -#define GL_RASTER_SAMPLES_EXT 0x9328 -#define GL_MAX_RASTER_SAMPLES_EXT 0x9329 -#define GL_RASTER_FIXED_SAMPLE_LOCATIONS_EXT 0x932A -#define GL_MULTISAMPLE_RASTERIZATION_ALLOWED_EXT 0x932B -#define GL_EFFECTIVE_RASTER_SAMPLES_EXT 0x932C -typedef void (GL_APIENTRYP PFNGLRASTERSAMPLESEXTPROC) (GLuint samples, GLboolean fixedsamplelocations); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRasterSamplesEXT (GLuint samples, GLboolean fixedsamplelocations); -#endif -#endif /* GL_EXT_raster_multisample */ - -#ifndef GL_EXT_read_format_bgra -#define GL_EXT_read_format_bgra 1 -#define GL_UNSIGNED_SHORT_4_4_4_4_REV_EXT 0x8365 -#define GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT 0x8366 -#endif /* GL_EXT_read_format_bgra */ - -#ifndef GL_EXT_render_snorm -#define GL_EXT_render_snorm 1 -#define GL_R8_SNORM 0x8F94 -#define GL_RG8_SNORM 0x8F95 -#define GL_RGBA8_SNORM 0x8F97 -#define GL_R16_SNORM_EXT 0x8F98 -#define GL_RG16_SNORM_EXT 0x8F99 -#define GL_RGBA16_SNORM_EXT 0x8F9B -#endif /* GL_EXT_render_snorm */ - -#ifndef GL_EXT_robustness -#define GL_EXT_robustness 1 -#define GL_GUILTY_CONTEXT_RESET_EXT 0x8253 -#define GL_INNOCENT_CONTEXT_RESET_EXT 0x8254 -#define GL_UNKNOWN_CONTEXT_RESET_EXT 0x8255 -#define GL_CONTEXT_ROBUST_ACCESS_EXT 0x90F3 -#define GL_RESET_NOTIFICATION_STRATEGY_EXT 0x8256 -#define GL_LOSE_CONTEXT_ON_RESET_EXT 0x8252 -#define GL_NO_RESET_NOTIFICATION_EXT 0x8261 -typedef GLenum (GL_APIENTRYP PFNGLGETGRAPHICSRESETSTATUSEXTPROC) (void); -typedef void (GL_APIENTRYP PFNGLREADNPIXELSEXTPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); -typedef void (GL_APIENTRYP PFNGLGETNUNIFORMFVEXTPROC) (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); -typedef void (GL_APIENTRYP PFNGLGETNUNIFORMIVEXTPROC) (GLuint program, GLint location, GLsizei bufSize, GLint *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLenum GL_APIENTRY glGetGraphicsResetStatusEXT (void); -GL_APICALL void GL_APIENTRY glReadnPixelsEXT (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void *data); -GL_APICALL void GL_APIENTRY glGetnUniformfvEXT (GLuint program, GLint location, GLsizei bufSize, GLfloat *params); -GL_APICALL void GL_APIENTRY glGetnUniformivEXT (GLuint program, GLint location, GLsizei bufSize, GLint *params); -#endif -#endif /* GL_EXT_robustness */ - -#ifndef GL_EXT_sRGB -#define GL_EXT_sRGB 1 -#define GL_SRGB_EXT 0x8C40 -#define GL_SRGB_ALPHA_EXT 0x8C42 -#define GL_SRGB8_ALPHA8_EXT 0x8C43 -#define GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT 0x8210 -#endif /* GL_EXT_sRGB */ - -#ifndef GL_EXT_sRGB_write_control -#define GL_EXT_sRGB_write_control 1 -#define GL_FRAMEBUFFER_SRGB_EXT 0x8DB9 -#endif /* GL_EXT_sRGB_write_control */ - -#ifndef GL_EXT_separate_shader_objects -#define GL_EXT_separate_shader_objects 1 -#define GL_ACTIVE_PROGRAM_EXT 0x8259 -#define GL_VERTEX_SHADER_BIT_EXT 0x00000001 -#define GL_FRAGMENT_SHADER_BIT_EXT 0x00000002 -#define GL_ALL_SHADER_BITS_EXT 0xFFFFFFFF -#define GL_PROGRAM_SEPARABLE_EXT 0x8258 -#define GL_PROGRAM_PIPELINE_BINDING_EXT 0x825A -typedef void (GL_APIENTRYP PFNGLACTIVESHADERPROGRAMEXTPROC) (GLuint pipeline, GLuint program); -typedef void (GL_APIENTRYP PFNGLBINDPROGRAMPIPELINEEXTPROC) (GLuint pipeline); -typedef GLuint (GL_APIENTRYP PFNGLCREATESHADERPROGRAMVEXTPROC) (GLenum type, GLsizei count, const GLchar **strings); -typedef void (GL_APIENTRYP PFNGLDELETEPROGRAMPIPELINESEXTPROC) (GLsizei n, const GLuint *pipelines); -typedef void (GL_APIENTRYP PFNGLGENPROGRAMPIPELINESEXTPROC) (GLsizei n, GLuint *pipelines); -typedef void (GL_APIENTRYP PFNGLGETPROGRAMPIPELINEINFOLOGEXTPROC) (GLuint pipeline, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -typedef void (GL_APIENTRYP PFNGLGETPROGRAMPIPELINEIVEXTPROC) (GLuint pipeline, GLenum pname, GLint *params); -typedef GLboolean (GL_APIENTRYP PFNGLISPROGRAMPIPELINEEXTPROC) (GLuint pipeline); -typedef void (GL_APIENTRYP PFNGLPROGRAMPARAMETERIEXTPROC) (GLuint program, GLenum pname, GLint value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1FEXTPROC) (GLuint program, GLint location, GLfloat v0); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1IEXTPROC) (GLuint program, GLint location, GLint v0); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4FEXTPROC) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4FVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4IEXTPROC) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4IVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUSEPROGRAMSTAGESEXTPROC) (GLuint pipeline, GLbitfield stages, GLuint program); -typedef void (GL_APIENTRYP PFNGLVALIDATEPROGRAMPIPELINEEXTPROC) (GLuint pipeline); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1UIEXTPROC) (GLuint program, GLint location, GLuint v0); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4UIEXTPROC) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4UIVEXTPROC) (GLuint program, GLint location, GLsizei count, const GLuint *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3FVEXTPROC) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glActiveShaderProgramEXT (GLuint pipeline, GLuint program); -GL_APICALL void GL_APIENTRY glBindProgramPipelineEXT (GLuint pipeline); -GL_APICALL GLuint GL_APIENTRY glCreateShaderProgramvEXT (GLenum type, GLsizei count, const GLchar **strings); -GL_APICALL void GL_APIENTRY glDeleteProgramPipelinesEXT (GLsizei n, const GLuint *pipelines); -GL_APICALL void GL_APIENTRY glGenProgramPipelinesEXT (GLsizei n, GLuint *pipelines); -GL_APICALL void GL_APIENTRY glGetProgramPipelineInfoLogEXT (GLuint pipeline, GLsizei bufSize, GLsizei *length, GLchar *infoLog); -GL_APICALL void GL_APIENTRY glGetProgramPipelineivEXT (GLuint pipeline, GLenum pname, GLint *params); -GL_APICALL GLboolean GL_APIENTRY glIsProgramPipelineEXT (GLuint pipeline); -GL_APICALL void GL_APIENTRY glProgramParameteriEXT (GLuint program, GLenum pname, GLint value); -GL_APICALL void GL_APIENTRY glProgramUniform1fEXT (GLuint program, GLint location, GLfloat v0); -GL_APICALL void GL_APIENTRY glProgramUniform1fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniform1iEXT (GLuint program, GLint location, GLint v0); -GL_APICALL void GL_APIENTRY glProgramUniform1ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glProgramUniform2fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1); -GL_APICALL void GL_APIENTRY glProgramUniform2fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniform2iEXT (GLuint program, GLint location, GLint v0, GLint v1); -GL_APICALL void GL_APIENTRY glProgramUniform2ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glProgramUniform3fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2); -GL_APICALL void GL_APIENTRY glProgramUniform3fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniform3iEXT (GLuint program, GLint location, GLint v0, GLint v1, GLint v2); -GL_APICALL void GL_APIENTRY glProgramUniform3ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glProgramUniform4fEXT (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); -GL_APICALL void GL_APIENTRY glProgramUniform4fvEXT (GLuint program, GLint location, GLsizei count, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniform4iEXT (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3); -GL_APICALL void GL_APIENTRY glProgramUniform4ivEXT (GLuint program, GLint location, GLsizei count, const GLint *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUseProgramStagesEXT (GLuint pipeline, GLbitfield stages, GLuint program); -GL_APICALL void GL_APIENTRY glValidateProgramPipelineEXT (GLuint pipeline); -GL_APICALL void GL_APIENTRY glProgramUniform1uiEXT (GLuint program, GLint location, GLuint v0); -GL_APICALL void GL_APIENTRY glProgramUniform2uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1); -GL_APICALL void GL_APIENTRY glProgramUniform3uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2); -GL_APICALL void GL_APIENTRY glProgramUniform4uiEXT (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3); -GL_APICALL void GL_APIENTRY glProgramUniform1uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); -GL_APICALL void GL_APIENTRY glProgramUniform2uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); -GL_APICALL void GL_APIENTRY glProgramUniform3uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); -GL_APICALL void GL_APIENTRY glProgramUniform4uivEXT (GLuint program, GLint location, GLsizei count, const GLuint *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix2x3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix3x2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix2x4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix4x2fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix3x4fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glProgramUniformMatrix4x3fvEXT (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -#endif -#endif /* GL_EXT_separate_shader_objects */ - -#ifndef GL_EXT_shader_framebuffer_fetch -#define GL_EXT_shader_framebuffer_fetch 1 -#define GL_FRAGMENT_SHADER_DISCARDS_SAMPLES_EXT 0x8A52 -#endif /* GL_EXT_shader_framebuffer_fetch */ - -#ifndef GL_EXT_shader_group_vote -#define GL_EXT_shader_group_vote 1 -#endif /* GL_EXT_shader_group_vote */ - -#ifndef GL_EXT_shader_implicit_conversions -#define GL_EXT_shader_implicit_conversions 1 -#endif /* GL_EXT_shader_implicit_conversions */ - -#ifndef GL_EXT_shader_integer_mix -#define GL_EXT_shader_integer_mix 1 -#endif /* GL_EXT_shader_integer_mix */ - -#ifndef GL_EXT_shader_io_blocks -#define GL_EXT_shader_io_blocks 1 -#endif /* GL_EXT_shader_io_blocks */ - -#ifndef GL_EXT_shader_non_constant_global_initializers -#define GL_EXT_shader_non_constant_global_initializers 1 -#endif /* GL_EXT_shader_non_constant_global_initializers */ - -#ifndef GL_EXT_shader_pixel_local_storage -#define GL_EXT_shader_pixel_local_storage 1 -#define GL_MAX_SHADER_PIXEL_LOCAL_STORAGE_FAST_SIZE_EXT 0x8F63 -#define GL_MAX_SHADER_PIXEL_LOCAL_STORAGE_SIZE_EXT 0x8F67 -#define GL_SHADER_PIXEL_LOCAL_STORAGE_EXT 0x8F64 -#endif /* GL_EXT_shader_pixel_local_storage */ - -#ifndef GL_EXT_shader_pixel_local_storage2 -#define GL_EXT_shader_pixel_local_storage2 1 -#define GL_MAX_SHADER_COMBINED_LOCAL_STORAGE_FAST_SIZE_EXT 0x9650 -#define GL_MAX_SHADER_COMBINED_LOCAL_STORAGE_SIZE_EXT 0x9651 -#define GL_FRAMEBUFFER_INCOMPLETE_INSUFFICIENT_SHADER_COMBINED_LOCAL_STORAGE_EXT 0x9652 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERPIXELLOCALSTORAGESIZEEXTPROC) (GLuint target, GLsizei size); -typedef GLsizei (GL_APIENTRYP PFNGLGETFRAMEBUFFERPIXELLOCALSTORAGESIZEEXTPROC) (GLuint target); -typedef void (GL_APIENTRYP PFNGLCLEARPIXELLOCALSTORAGEUIEXTPROC) (GLsizei offset, GLsizei n, const GLuint *values); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferPixelLocalStorageSizeEXT (GLuint target, GLsizei size); -GL_APICALL GLsizei GL_APIENTRY glGetFramebufferPixelLocalStorageSizeEXT (GLuint target); -GL_APICALL void GL_APIENTRY glClearPixelLocalStorageuiEXT (GLsizei offset, GLsizei n, const GLuint *values); -#endif -#endif /* GL_EXT_shader_pixel_local_storage2 */ - -#ifndef GL_EXT_shader_texture_lod -#define GL_EXT_shader_texture_lod 1 -#endif /* GL_EXT_shader_texture_lod */ - -#ifndef GL_EXT_shadow_samplers -#define GL_EXT_shadow_samplers 1 -#define GL_TEXTURE_COMPARE_MODE_EXT 0x884C -#define GL_TEXTURE_COMPARE_FUNC_EXT 0x884D -#define GL_COMPARE_REF_TO_TEXTURE_EXT 0x884E -#define GL_SAMPLER_2D_SHADOW_EXT 0x8B62 -#endif /* GL_EXT_shadow_samplers */ - -#ifndef GL_EXT_sparse_texture -#define GL_EXT_sparse_texture 1 -#define GL_TEXTURE_SPARSE_EXT 0x91A6 -#define GL_VIRTUAL_PAGE_SIZE_INDEX_EXT 0x91A7 -#define GL_NUM_SPARSE_LEVELS_EXT 0x91AA -#define GL_NUM_VIRTUAL_PAGE_SIZES_EXT 0x91A8 -#define GL_VIRTUAL_PAGE_SIZE_X_EXT 0x9195 -#define GL_VIRTUAL_PAGE_SIZE_Y_EXT 0x9196 -#define GL_VIRTUAL_PAGE_SIZE_Z_EXT 0x9197 -#define GL_TEXTURE_2D_ARRAY 0x8C1A -#define GL_TEXTURE_3D 0x806F -#define GL_MAX_SPARSE_TEXTURE_SIZE_EXT 0x9198 -#define GL_MAX_SPARSE_3D_TEXTURE_SIZE_EXT 0x9199 -#define GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_EXT 0x919A -#define GL_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_EXT 0x91A9 -typedef void (GL_APIENTRYP PFNGLTEXPAGECOMMITMENTEXTPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexPageCommitmentEXT (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit); -#endif -#endif /* GL_EXT_sparse_texture */ - -#ifndef GL_EXT_tessellation_point_size -#define GL_EXT_tessellation_point_size 1 -#endif /* GL_EXT_tessellation_point_size */ - -#ifndef GL_EXT_tessellation_shader -#define GL_EXT_tessellation_shader 1 -#define GL_PATCHES_EXT 0x000E -#define GL_PATCH_VERTICES_EXT 0x8E72 -#define GL_TESS_CONTROL_OUTPUT_VERTICES_EXT 0x8E75 -#define GL_TESS_GEN_MODE_EXT 0x8E76 -#define GL_TESS_GEN_SPACING_EXT 0x8E77 -#define GL_TESS_GEN_VERTEX_ORDER_EXT 0x8E78 -#define GL_TESS_GEN_POINT_MODE_EXT 0x8E79 -#define GL_ISOLINES_EXT 0x8E7A -#define GL_QUADS_EXT 0x0007 -#define GL_FRACTIONAL_ODD_EXT 0x8E7B -#define GL_FRACTIONAL_EVEN_EXT 0x8E7C -#define GL_MAX_PATCH_VERTICES_EXT 0x8E7D -#define GL_MAX_TESS_GEN_LEVEL_EXT 0x8E7E -#define GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS_EXT 0x8E7F -#define GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS_EXT 0x8E80 -#define GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS_EXT 0x8E81 -#define GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS_EXT 0x8E82 -#define GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS_EXT 0x8E83 -#define GL_MAX_TESS_PATCH_COMPONENTS_EXT 0x8E84 -#define GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS_EXT 0x8E85 -#define GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS_EXT 0x8E86 -#define GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS_EXT 0x8E89 -#define GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS_EXT 0x8E8A -#define GL_MAX_TESS_CONTROL_INPUT_COMPONENTS_EXT 0x886C -#define GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS_EXT 0x886D -#define GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS_EXT 0x8E1E -#define GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS_EXT 0x8E1F -#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS_EXT 0x92CD -#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS_EXT 0x92CE -#define GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS_EXT 0x92D3 -#define GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS_EXT 0x92D4 -#define GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS_EXT 0x90CB -#define GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS_EXT 0x90CC -#define GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS_EXT 0x90D8 -#define GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS_EXT 0x90D9 -#define GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED 0x8221 -#define GL_IS_PER_PATCH_EXT 0x92E7 -#define GL_REFERENCED_BY_TESS_CONTROL_SHADER_EXT 0x9307 -#define GL_REFERENCED_BY_TESS_EVALUATION_SHADER_EXT 0x9308 -#define GL_TESS_CONTROL_SHADER_EXT 0x8E88 -#define GL_TESS_EVALUATION_SHADER_EXT 0x8E87 -#define GL_TESS_CONTROL_SHADER_BIT_EXT 0x00000008 -#define GL_TESS_EVALUATION_SHADER_BIT_EXT 0x00000010 -typedef void (GL_APIENTRYP PFNGLPATCHPARAMETERIEXTPROC) (GLenum pname, GLint value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPatchParameteriEXT (GLenum pname, GLint value); -#endif -#endif /* GL_EXT_tessellation_shader */ - -#ifndef GL_EXT_texture_border_clamp -#define GL_EXT_texture_border_clamp 1 -#define GL_TEXTURE_BORDER_COLOR_EXT 0x1004 -#define GL_CLAMP_TO_BORDER_EXT 0x812D -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIIVEXTPROC) (GLenum target, GLenum pname, const GLint *params); -typedef void (GL_APIENTRYP PFNGLTEXPARAMETERIUIVEXTPROC) (GLenum target, GLenum pname, const GLuint *params); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERIIVEXTPROC) (GLenum target, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETTEXPARAMETERIUIVEXTPROC) (GLenum target, GLenum pname, GLuint *params); -typedef void (GL_APIENTRYP PFNGLSAMPLERPARAMETERIIVEXTPROC) (GLuint sampler, GLenum pname, const GLint *param); -typedef void (GL_APIENTRYP PFNGLSAMPLERPARAMETERIUIVEXTPROC) (GLuint sampler, GLenum pname, const GLuint *param); -typedef void (GL_APIENTRYP PFNGLGETSAMPLERPARAMETERIIVEXTPROC) (GLuint sampler, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLGETSAMPLERPARAMETERIUIVEXTPROC) (GLuint sampler, GLenum pname, GLuint *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexParameterIivEXT (GLenum target, GLenum pname, const GLint *params); -GL_APICALL void GL_APIENTRY glTexParameterIuivEXT (GLenum target, GLenum pname, const GLuint *params); -GL_APICALL void GL_APIENTRY glGetTexParameterIivEXT (GLenum target, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetTexParameterIuivEXT (GLenum target, GLenum pname, GLuint *params); -GL_APICALL void GL_APIENTRY glSamplerParameterIivEXT (GLuint sampler, GLenum pname, const GLint *param); -GL_APICALL void GL_APIENTRY glSamplerParameterIuivEXT (GLuint sampler, GLenum pname, const GLuint *param); -GL_APICALL void GL_APIENTRY glGetSamplerParameterIivEXT (GLuint sampler, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glGetSamplerParameterIuivEXT (GLuint sampler, GLenum pname, GLuint *params); -#endif -#endif /* GL_EXT_texture_border_clamp */ - -#ifndef GL_EXT_texture_buffer -#define GL_EXT_texture_buffer 1 -#define GL_TEXTURE_BUFFER_EXT 0x8C2A -#define GL_TEXTURE_BUFFER_BINDING_EXT 0x8C2A -#define GL_MAX_TEXTURE_BUFFER_SIZE_EXT 0x8C2B -#define GL_TEXTURE_BINDING_BUFFER_EXT 0x8C2C -#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING_EXT 0x8C2D -#define GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT_EXT 0x919F -#define GL_SAMPLER_BUFFER_EXT 0x8DC2 -#define GL_INT_SAMPLER_BUFFER_EXT 0x8DD0 -#define GL_UNSIGNED_INT_SAMPLER_BUFFER_EXT 0x8DD8 -#define GL_IMAGE_BUFFER_EXT 0x9051 -#define GL_INT_IMAGE_BUFFER_EXT 0x905C -#define GL_UNSIGNED_INT_IMAGE_BUFFER_EXT 0x9067 -#define GL_TEXTURE_BUFFER_OFFSET_EXT 0x919D -#define GL_TEXTURE_BUFFER_SIZE_EXT 0x919E -typedef void (GL_APIENTRYP PFNGLTEXBUFFEREXTPROC) (GLenum target, GLenum internalformat, GLuint buffer); -typedef void (GL_APIENTRYP PFNGLTEXBUFFERRANGEEXTPROC) (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexBufferEXT (GLenum target, GLenum internalformat, GLuint buffer); -GL_APICALL void GL_APIENTRY glTexBufferRangeEXT (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size); -#endif -#endif /* GL_EXT_texture_buffer */ - -#ifndef GL_EXT_texture_compression_dxt1 -#define GL_EXT_texture_compression_dxt1 1 -#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 -#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 -#endif /* GL_EXT_texture_compression_dxt1 */ - -#ifndef GL_EXT_texture_compression_s3tc -#define GL_EXT_texture_compression_s3tc 1 -#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 -#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 -#endif /* GL_EXT_texture_compression_s3tc */ - -#ifndef GL_EXT_texture_cube_map_array -#define GL_EXT_texture_cube_map_array 1 -#define GL_TEXTURE_CUBE_MAP_ARRAY_EXT 0x9009 -#define GL_TEXTURE_BINDING_CUBE_MAP_ARRAY_EXT 0x900A -#define GL_SAMPLER_CUBE_MAP_ARRAY_EXT 0x900C -#define GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW_EXT 0x900D -#define GL_INT_SAMPLER_CUBE_MAP_ARRAY_EXT 0x900E -#define GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY_EXT 0x900F -#define GL_IMAGE_CUBE_MAP_ARRAY_EXT 0x9054 -#define GL_INT_IMAGE_CUBE_MAP_ARRAY_EXT 0x905F -#define GL_UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY_EXT 0x906A -#endif /* GL_EXT_texture_cube_map_array */ - -#ifndef GL_EXT_texture_filter_anisotropic -#define GL_EXT_texture_filter_anisotropic 1 -#define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE -#define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF -#endif /* GL_EXT_texture_filter_anisotropic */ - -#ifndef GL_EXT_texture_filter_minmax -#define GL_EXT_texture_filter_minmax 1 -#endif /* GL_EXT_texture_filter_minmax */ - -#ifndef GL_EXT_texture_format_BGRA8888 -#define GL_EXT_texture_format_BGRA8888 1 -#endif /* GL_EXT_texture_format_BGRA8888 */ - -#ifndef GL_EXT_texture_norm16 -#define GL_EXT_texture_norm16 1 -#define GL_R16_EXT 0x822A -#define GL_RG16_EXT 0x822C -#define GL_RGBA16_EXT 0x805B -#define GL_RGB16_EXT 0x8054 -#define GL_RGB16_SNORM_EXT 0x8F9A -#endif /* GL_EXT_texture_norm16 */ - -#ifndef GL_EXT_texture_rg -#define GL_EXT_texture_rg 1 -#define GL_RED_EXT 0x1903 -#define GL_RG_EXT 0x8227 -#define GL_R8_EXT 0x8229 -#define GL_RG8_EXT 0x822B -#endif /* GL_EXT_texture_rg */ - -#ifndef GL_EXT_texture_sRGB_R8 -#define GL_EXT_texture_sRGB_R8 1 -#define GL_SR8_EXT 0x8FBD -#endif /* GL_EXT_texture_sRGB_R8 */ - -#ifndef GL_EXT_texture_sRGB_RG8 -#define GL_EXT_texture_sRGB_RG8 1 -#define GL_SRG8_EXT 0x8FBE -#endif /* GL_EXT_texture_sRGB_RG8 */ - -#ifndef GL_EXT_texture_sRGB_decode -#define GL_EXT_texture_sRGB_decode 1 -#define GL_TEXTURE_SRGB_DECODE_EXT 0x8A48 -#define GL_DECODE_EXT 0x8A49 -#define GL_SKIP_DECODE_EXT 0x8A4A -#endif /* GL_EXT_texture_sRGB_decode */ - -#ifndef GL_EXT_texture_storage -#define GL_EXT_texture_storage 1 -#define GL_TEXTURE_IMMUTABLE_FORMAT_EXT 0x912F -#define GL_ALPHA8_EXT 0x803C -#define GL_LUMINANCE8_EXT 0x8040 -#define GL_LUMINANCE8_ALPHA8_EXT 0x8045 -#define GL_RGBA32F_EXT 0x8814 -#define GL_RGB32F_EXT 0x8815 -#define GL_ALPHA32F_EXT 0x8816 -#define GL_LUMINANCE32F_EXT 0x8818 -#define GL_LUMINANCE_ALPHA32F_EXT 0x8819 -#define GL_ALPHA16F_EXT 0x881C -#define GL_LUMINANCE16F_EXT 0x881E -#define GL_LUMINANCE_ALPHA16F_EXT 0x881F -#define GL_R32F_EXT 0x822E -#define GL_RG32F_EXT 0x8230 -typedef void (GL_APIENTRYP PFNGLTEXSTORAGE1DEXTPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); -typedef void (GL_APIENTRYP PFNGLTEXSTORAGE2DEXTPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLTEXSTORAGE3DEXTPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); -typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGE1DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); -typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGE2DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLTEXTURESTORAGE3DEXTPROC) (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTexStorage1DEXT (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); -GL_APICALL void GL_APIENTRY glTexStorage2DEXT (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glTexStorage3DEXT (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); -GL_APICALL void GL_APIENTRY glTextureStorage1DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width); -GL_APICALL void GL_APIENTRY glTextureStorage2DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glTextureStorage3DEXT (GLuint texture, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth); -#endif -#endif /* GL_EXT_texture_storage */ - -#ifndef GL_EXT_texture_type_2_10_10_10_REV -#define GL_EXT_texture_type_2_10_10_10_REV 1 -#define GL_UNSIGNED_INT_2_10_10_10_REV_EXT 0x8368 -#endif /* GL_EXT_texture_type_2_10_10_10_REV */ - -#ifndef GL_EXT_texture_view -#define GL_EXT_texture_view 1 -#define GL_TEXTURE_VIEW_MIN_LEVEL_EXT 0x82DB -#define GL_TEXTURE_VIEW_NUM_LEVELS_EXT 0x82DC -#define GL_TEXTURE_VIEW_MIN_LAYER_EXT 0x82DD -#define GL_TEXTURE_VIEW_NUM_LAYERS_EXT 0x82DE -typedef void (GL_APIENTRYP PFNGLTEXTUREVIEWEXTPROC) (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glTextureViewEXT (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers); -#endif -#endif /* GL_EXT_texture_view */ - -#ifndef GL_EXT_unpack_subimage -#define GL_EXT_unpack_subimage 1 -#define GL_UNPACK_ROW_LENGTH_EXT 0x0CF2 -#define GL_UNPACK_SKIP_ROWS_EXT 0x0CF3 -#define GL_UNPACK_SKIP_PIXELS_EXT 0x0CF4 -#endif /* GL_EXT_unpack_subimage */ - -#ifndef GL_EXT_window_rectangles -#define GL_EXT_window_rectangles 1 -#define GL_INCLUSIVE_EXT 0x8F10 -#define GL_EXCLUSIVE_EXT 0x8F11 -#define GL_WINDOW_RECTANGLE_EXT 0x8F12 -#define GL_WINDOW_RECTANGLE_MODE_EXT 0x8F13 -#define GL_MAX_WINDOW_RECTANGLES_EXT 0x8F14 -#define GL_NUM_WINDOW_RECTANGLES_EXT 0x8F15 -typedef void (GL_APIENTRYP PFNGLWINDOWRECTANGLESEXTPROC) (GLenum mode, GLsizei count, const GLint *box); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glWindowRectanglesEXT (GLenum mode, GLsizei count, const GLint *box); -#endif -#endif /* GL_EXT_window_rectangles */ - -#ifndef GL_FJ_shader_binary_GCCSO -#define GL_FJ_shader_binary_GCCSO 1 -#define GL_GCCSO_SHADER_BINARY_FJ 0x9260 -#endif /* GL_FJ_shader_binary_GCCSO */ - -#ifndef GL_IMG_bindless_texture -#define GL_IMG_bindless_texture 1 -typedef GLuint64 (GL_APIENTRYP PFNGLGETTEXTUREHANDLEIMGPROC) (GLuint texture); -typedef GLuint64 (GL_APIENTRYP PFNGLGETTEXTURESAMPLERHANDLEIMGPROC) (GLuint texture, GLuint sampler); -typedef void (GL_APIENTRYP PFNGLUNIFORMHANDLEUI64IMGPROC) (GLint location, GLuint64 value); -typedef void (GL_APIENTRYP PFNGLUNIFORMHANDLEUI64VIMGPROC) (GLint location, GLsizei count, const GLuint64 *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64IMGPROC) (GLuint program, GLint location, GLuint64 value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64VIMGPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *values); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLuint64 GL_APIENTRY glGetTextureHandleIMG (GLuint texture); -GL_APICALL GLuint64 GL_APIENTRY glGetTextureSamplerHandleIMG (GLuint texture, GLuint sampler); -GL_APICALL void GL_APIENTRY glUniformHandleui64IMG (GLint location, GLuint64 value); -GL_APICALL void GL_APIENTRY glUniformHandleui64vIMG (GLint location, GLsizei count, const GLuint64 *value); -GL_APICALL void GL_APIENTRY glProgramUniformHandleui64IMG (GLuint program, GLint location, GLuint64 value); -GL_APICALL void GL_APIENTRY glProgramUniformHandleui64vIMG (GLuint program, GLint location, GLsizei count, const GLuint64 *values); -#endif -#endif /* GL_IMG_bindless_texture */ - -#ifndef GL_IMG_framebuffer_downsample -#define GL_IMG_framebuffer_downsample 1 -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_AND_DOWNSAMPLE_IMG 0x913C -#define GL_NUM_DOWNSAMPLE_SCALES_IMG 0x913D -#define GL_DOWNSAMPLE_SCALES_IMG 0x913E -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SCALE_IMG 0x913F -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DDOWNSAMPLEIMGPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint xscale, GLint yscale); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURELAYERDOWNSAMPLEIMGPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer, GLint xscale, GLint yscale); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferTexture2DDownsampleIMG (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint xscale, GLint yscale); -GL_APICALL void GL_APIENTRY glFramebufferTextureLayerDownsampleIMG (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer, GLint xscale, GLint yscale); -#endif -#endif /* GL_IMG_framebuffer_downsample */ - -#ifndef GL_IMG_multisampled_render_to_texture -#define GL_IMG_multisampled_render_to_texture 1 -#define GL_RENDERBUFFER_SAMPLES_IMG 0x9133 -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_IMG 0x9134 -#define GL_MAX_SAMPLES_IMG 0x9135 -#define GL_TEXTURE_SAMPLES_IMG 0x9136 -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEIMGPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEIMGPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleIMG (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glFramebufferTexture2DMultisampleIMG (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples); -#endif -#endif /* GL_IMG_multisampled_render_to_texture */ - -#ifndef GL_IMG_program_binary -#define GL_IMG_program_binary 1 -#define GL_SGX_PROGRAM_BINARY_IMG 0x9130 -#endif /* GL_IMG_program_binary */ - -#ifndef GL_IMG_read_format -#define GL_IMG_read_format 1 -#define GL_BGRA_IMG 0x80E1 -#define GL_UNSIGNED_SHORT_4_4_4_4_REV_IMG 0x8365 -#endif /* GL_IMG_read_format */ - -#ifndef GL_IMG_shader_binary -#define GL_IMG_shader_binary 1 -#define GL_SGX_BINARY_IMG 0x8C0A -#endif /* GL_IMG_shader_binary */ - -#ifndef GL_IMG_texture_compression_pvrtc -#define GL_IMG_texture_compression_pvrtc 1 -#define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 -#define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01 -#define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 -#define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03 -#endif /* GL_IMG_texture_compression_pvrtc */ - -#ifndef GL_IMG_texture_compression_pvrtc2 -#define GL_IMG_texture_compression_pvrtc2 1 -#define GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG 0x9137 -#define GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG 0x9138 -#endif /* GL_IMG_texture_compression_pvrtc2 */ - -#ifndef GL_IMG_texture_filter_cubic -#define GL_IMG_texture_filter_cubic 1 -#define GL_CUBIC_IMG 0x9139 -#define GL_CUBIC_MIPMAP_NEAREST_IMG 0x913A -#define GL_CUBIC_MIPMAP_LINEAR_IMG 0x913B -#endif /* GL_IMG_texture_filter_cubic */ - -#ifndef GL_INTEL_conservative_rasterization -#define GL_INTEL_conservative_rasterization 1 -#define GL_CONSERVATIVE_RASTERIZATION_INTEL 0x83FE -#endif /* GL_INTEL_conservative_rasterization */ - -#ifndef GL_INTEL_framebuffer_CMAA -#define GL_INTEL_framebuffer_CMAA 1 -typedef void (GL_APIENTRYP PFNGLAPPLYFRAMEBUFFERATTACHMENTCMAAINTELPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glApplyFramebufferAttachmentCMAAINTEL (void); -#endif -#endif /* GL_INTEL_framebuffer_CMAA */ - -#ifndef GL_INTEL_performance_query -#define GL_INTEL_performance_query 1 -#define GL_PERFQUERY_SINGLE_CONTEXT_INTEL 0x00000000 -#define GL_PERFQUERY_GLOBAL_CONTEXT_INTEL 0x00000001 -#define GL_PERFQUERY_WAIT_INTEL 0x83FB -#define GL_PERFQUERY_FLUSH_INTEL 0x83FA -#define GL_PERFQUERY_DONOT_FLUSH_INTEL 0x83F9 -#define GL_PERFQUERY_COUNTER_EVENT_INTEL 0x94F0 -#define GL_PERFQUERY_COUNTER_DURATION_NORM_INTEL 0x94F1 -#define GL_PERFQUERY_COUNTER_DURATION_RAW_INTEL 0x94F2 -#define GL_PERFQUERY_COUNTER_THROUGHPUT_INTEL 0x94F3 -#define GL_PERFQUERY_COUNTER_RAW_INTEL 0x94F4 -#define GL_PERFQUERY_COUNTER_TIMESTAMP_INTEL 0x94F5 -#define GL_PERFQUERY_COUNTER_DATA_UINT32_INTEL 0x94F8 -#define GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL 0x94F9 -#define GL_PERFQUERY_COUNTER_DATA_FLOAT_INTEL 0x94FA -#define GL_PERFQUERY_COUNTER_DATA_DOUBLE_INTEL 0x94FB -#define GL_PERFQUERY_COUNTER_DATA_BOOL32_INTEL 0x94FC -#define GL_PERFQUERY_QUERY_NAME_LENGTH_MAX_INTEL 0x94FD -#define GL_PERFQUERY_COUNTER_NAME_LENGTH_MAX_INTEL 0x94FE -#define GL_PERFQUERY_COUNTER_DESC_LENGTH_MAX_INTEL 0x94FF -#define GL_PERFQUERY_GPA_EXTENDED_COUNTERS_INTEL 0x9500 -typedef void (GL_APIENTRYP PFNGLBEGINPERFQUERYINTELPROC) (GLuint queryHandle); -typedef void (GL_APIENTRYP PFNGLCREATEPERFQUERYINTELPROC) (GLuint queryId, GLuint *queryHandle); -typedef void (GL_APIENTRYP PFNGLDELETEPERFQUERYINTELPROC) (GLuint queryHandle); -typedef void (GL_APIENTRYP PFNGLENDPERFQUERYINTELPROC) (GLuint queryHandle); -typedef void (GL_APIENTRYP PFNGLGETFIRSTPERFQUERYIDINTELPROC) (GLuint *queryId); -typedef void (GL_APIENTRYP PFNGLGETNEXTPERFQUERYIDINTELPROC) (GLuint queryId, GLuint *nextQueryId); -typedef void (GL_APIENTRYP PFNGLGETPERFCOUNTERINFOINTELPROC) (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue); -typedef void (GL_APIENTRYP PFNGLGETPERFQUERYDATAINTELPROC) (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten); -typedef void (GL_APIENTRYP PFNGLGETPERFQUERYIDBYNAMEINTELPROC) (GLchar *queryName, GLuint *queryId); -typedef void (GL_APIENTRYP PFNGLGETPERFQUERYINFOINTELPROC) (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBeginPerfQueryINTEL (GLuint queryHandle); -GL_APICALL void GL_APIENTRY glCreatePerfQueryINTEL (GLuint queryId, GLuint *queryHandle); -GL_APICALL void GL_APIENTRY glDeletePerfQueryINTEL (GLuint queryHandle); -GL_APICALL void GL_APIENTRY glEndPerfQueryINTEL (GLuint queryHandle); -GL_APICALL void GL_APIENTRY glGetFirstPerfQueryIdINTEL (GLuint *queryId); -GL_APICALL void GL_APIENTRY glGetNextPerfQueryIdINTEL (GLuint queryId, GLuint *nextQueryId); -GL_APICALL void GL_APIENTRY glGetPerfCounterInfoINTEL (GLuint queryId, GLuint counterId, GLuint counterNameLength, GLchar *counterName, GLuint counterDescLength, GLchar *counterDesc, GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum, GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue); -GL_APICALL void GL_APIENTRY glGetPerfQueryDataINTEL (GLuint queryHandle, GLuint flags, GLsizei dataSize, GLvoid *data, GLuint *bytesWritten); -GL_APICALL void GL_APIENTRY glGetPerfQueryIdByNameINTEL (GLchar *queryName, GLuint *queryId); -GL_APICALL void GL_APIENTRY glGetPerfQueryInfoINTEL (GLuint queryId, GLuint queryNameLength, GLchar *queryName, GLuint *dataSize, GLuint *noCounters, GLuint *noInstances, GLuint *capsMask); -#endif -#endif /* GL_INTEL_performance_query */ - -#ifndef GL_NV_bindless_texture -#define GL_NV_bindless_texture 1 -typedef GLuint64 (GL_APIENTRYP PFNGLGETTEXTUREHANDLENVPROC) (GLuint texture); -typedef GLuint64 (GL_APIENTRYP PFNGLGETTEXTURESAMPLERHANDLENVPROC) (GLuint texture, GLuint sampler); -typedef void (GL_APIENTRYP PFNGLMAKETEXTUREHANDLERESIDENTNVPROC) (GLuint64 handle); -typedef void (GL_APIENTRYP PFNGLMAKETEXTUREHANDLENONRESIDENTNVPROC) (GLuint64 handle); -typedef GLuint64 (GL_APIENTRYP PFNGLGETIMAGEHANDLENVPROC) (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); -typedef void (GL_APIENTRYP PFNGLMAKEIMAGEHANDLERESIDENTNVPROC) (GLuint64 handle, GLenum access); -typedef void (GL_APIENTRYP PFNGLMAKEIMAGEHANDLENONRESIDENTNVPROC) (GLuint64 handle); -typedef void (GL_APIENTRYP PFNGLUNIFORMHANDLEUI64NVPROC) (GLint location, GLuint64 value); -typedef void (GL_APIENTRYP PFNGLUNIFORMHANDLEUI64VNVPROC) (GLint location, GLsizei count, const GLuint64 *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64NVPROC) (GLuint program, GLint location, GLuint64 value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64 *values); -typedef GLboolean (GL_APIENTRYP PFNGLISTEXTUREHANDLERESIDENTNVPROC) (GLuint64 handle); -typedef GLboolean (GL_APIENTRYP PFNGLISIMAGEHANDLERESIDENTNVPROC) (GLuint64 handle); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLuint64 GL_APIENTRY glGetTextureHandleNV (GLuint texture); -GL_APICALL GLuint64 GL_APIENTRY glGetTextureSamplerHandleNV (GLuint texture, GLuint sampler); -GL_APICALL void GL_APIENTRY glMakeTextureHandleResidentNV (GLuint64 handle); -GL_APICALL void GL_APIENTRY glMakeTextureHandleNonResidentNV (GLuint64 handle); -GL_APICALL GLuint64 GL_APIENTRY glGetImageHandleNV (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format); -GL_APICALL void GL_APIENTRY glMakeImageHandleResidentNV (GLuint64 handle, GLenum access); -GL_APICALL void GL_APIENTRY glMakeImageHandleNonResidentNV (GLuint64 handle); -GL_APICALL void GL_APIENTRY glUniformHandleui64NV (GLint location, GLuint64 value); -GL_APICALL void GL_APIENTRY glUniformHandleui64vNV (GLint location, GLsizei count, const GLuint64 *value); -GL_APICALL void GL_APIENTRY glProgramUniformHandleui64NV (GLuint program, GLint location, GLuint64 value); -GL_APICALL void GL_APIENTRY glProgramUniformHandleui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64 *values); -GL_APICALL GLboolean GL_APIENTRY glIsTextureHandleResidentNV (GLuint64 handle); -GL_APICALL GLboolean GL_APIENTRY glIsImageHandleResidentNV (GLuint64 handle); -#endif -#endif /* GL_NV_bindless_texture */ - -#ifndef GL_NV_blend_equation_advanced -#define GL_NV_blend_equation_advanced 1 -#define GL_BLEND_OVERLAP_NV 0x9281 -#define GL_BLEND_PREMULTIPLIED_SRC_NV 0x9280 -#define GL_BLUE_NV 0x1905 -#define GL_COLORBURN_NV 0x929A -#define GL_COLORDODGE_NV 0x9299 -#define GL_CONJOINT_NV 0x9284 -#define GL_CONTRAST_NV 0x92A1 -#define GL_DARKEN_NV 0x9297 -#define GL_DIFFERENCE_NV 0x929E -#define GL_DISJOINT_NV 0x9283 -#define GL_DST_ATOP_NV 0x928F -#define GL_DST_IN_NV 0x928B -#define GL_DST_NV 0x9287 -#define GL_DST_OUT_NV 0x928D -#define GL_DST_OVER_NV 0x9289 -#define GL_EXCLUSION_NV 0x92A0 -#define GL_GREEN_NV 0x1904 -#define GL_HARDLIGHT_NV 0x929B -#define GL_HARDMIX_NV 0x92A9 -#define GL_HSL_COLOR_NV 0x92AF -#define GL_HSL_HUE_NV 0x92AD -#define GL_HSL_LUMINOSITY_NV 0x92B0 -#define GL_HSL_SATURATION_NV 0x92AE -#define GL_INVERT_OVG_NV 0x92B4 -#define GL_INVERT_RGB_NV 0x92A3 -#define GL_LIGHTEN_NV 0x9298 -#define GL_LINEARBURN_NV 0x92A5 -#define GL_LINEARDODGE_NV 0x92A4 -#define GL_LINEARLIGHT_NV 0x92A7 -#define GL_MINUS_CLAMPED_NV 0x92B3 -#define GL_MINUS_NV 0x929F -#define GL_MULTIPLY_NV 0x9294 -#define GL_OVERLAY_NV 0x9296 -#define GL_PINLIGHT_NV 0x92A8 -#define GL_PLUS_CLAMPED_ALPHA_NV 0x92B2 -#define GL_PLUS_CLAMPED_NV 0x92B1 -#define GL_PLUS_DARKER_NV 0x9292 -#define GL_PLUS_NV 0x9291 -#define GL_RED_NV 0x1903 -#define GL_SCREEN_NV 0x9295 -#define GL_SOFTLIGHT_NV 0x929C -#define GL_SRC_ATOP_NV 0x928E -#define GL_SRC_IN_NV 0x928A -#define GL_SRC_NV 0x9286 -#define GL_SRC_OUT_NV 0x928C -#define GL_SRC_OVER_NV 0x9288 -#define GL_UNCORRELATED_NV 0x9282 -#define GL_VIVIDLIGHT_NV 0x92A6 -#define GL_XOR_NV 0x1506 -typedef void (GL_APIENTRYP PFNGLBLENDPARAMETERINVPROC) (GLenum pname, GLint value); -typedef void (GL_APIENTRYP PFNGLBLENDBARRIERNVPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBlendParameteriNV (GLenum pname, GLint value); -GL_APICALL void GL_APIENTRY glBlendBarrierNV (void); -#endif -#endif /* GL_NV_blend_equation_advanced */ - -#ifndef GL_NV_blend_equation_advanced_coherent -#define GL_NV_blend_equation_advanced_coherent 1 -#define GL_BLEND_ADVANCED_COHERENT_NV 0x9285 -#endif /* GL_NV_blend_equation_advanced_coherent */ - -#ifndef GL_NV_conditional_render -#define GL_NV_conditional_render 1 -#define GL_QUERY_WAIT_NV 0x8E13 -#define GL_QUERY_NO_WAIT_NV 0x8E14 -#define GL_QUERY_BY_REGION_WAIT_NV 0x8E15 -#define GL_QUERY_BY_REGION_NO_WAIT_NV 0x8E16 -typedef void (GL_APIENTRYP PFNGLBEGINCONDITIONALRENDERNVPROC) (GLuint id, GLenum mode); -typedef void (GL_APIENTRYP PFNGLENDCONDITIONALRENDERNVPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBeginConditionalRenderNV (GLuint id, GLenum mode); -GL_APICALL void GL_APIENTRY glEndConditionalRenderNV (void); -#endif -#endif /* GL_NV_conditional_render */ - -#ifndef GL_NV_conservative_raster -#define GL_NV_conservative_raster 1 -#define GL_CONSERVATIVE_RASTERIZATION_NV 0x9346 -#define GL_SUBPIXEL_PRECISION_BIAS_X_BITS_NV 0x9347 -#define GL_SUBPIXEL_PRECISION_BIAS_Y_BITS_NV 0x9348 -#define GL_MAX_SUBPIXEL_PRECISION_BIAS_BITS_NV 0x9349 -typedef void (GL_APIENTRYP PFNGLSUBPIXELPRECISIONBIASNVPROC) (GLuint xbits, GLuint ybits); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glSubpixelPrecisionBiasNV (GLuint xbits, GLuint ybits); -#endif -#endif /* GL_NV_conservative_raster */ - -#ifndef GL_NV_conservative_raster_pre_snap_triangles -#define GL_NV_conservative_raster_pre_snap_triangles 1 -#define GL_CONSERVATIVE_RASTER_MODE_NV 0x954D -#define GL_CONSERVATIVE_RASTER_MODE_POST_SNAP_NV 0x954E -#define GL_CONSERVATIVE_RASTER_MODE_PRE_SNAP_TRIANGLES_NV 0x954F -typedef void (GL_APIENTRYP PFNGLCONSERVATIVERASTERPARAMETERINVPROC) (GLenum pname, GLint param); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glConservativeRasterParameteriNV (GLenum pname, GLint param); -#endif -#endif /* GL_NV_conservative_raster_pre_snap_triangles */ - -#ifndef GL_NV_copy_buffer -#define GL_NV_copy_buffer 1 -#define GL_COPY_READ_BUFFER_NV 0x8F36 -#define GL_COPY_WRITE_BUFFER_NV 0x8F37 -typedef void (GL_APIENTRYP PFNGLCOPYBUFFERSUBDATANVPROC) (GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCopyBufferSubDataNV (GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size); -#endif -#endif /* GL_NV_copy_buffer */ - -#ifndef GL_NV_coverage_sample -#define GL_NV_coverage_sample 1 -#define GL_COVERAGE_COMPONENT_NV 0x8ED0 -#define GL_COVERAGE_COMPONENT4_NV 0x8ED1 -#define GL_COVERAGE_ATTACHMENT_NV 0x8ED2 -#define GL_COVERAGE_BUFFERS_NV 0x8ED3 -#define GL_COVERAGE_SAMPLES_NV 0x8ED4 -#define GL_COVERAGE_ALL_FRAGMENTS_NV 0x8ED5 -#define GL_COVERAGE_EDGE_FRAGMENTS_NV 0x8ED6 -#define GL_COVERAGE_AUTOMATIC_NV 0x8ED7 -#define GL_COVERAGE_BUFFER_BIT_NV 0x00008000 -typedef void (GL_APIENTRYP PFNGLCOVERAGEMASKNVPROC) (GLboolean mask); -typedef void (GL_APIENTRYP PFNGLCOVERAGEOPERATIONNVPROC) (GLenum operation); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCoverageMaskNV (GLboolean mask); -GL_APICALL void GL_APIENTRY glCoverageOperationNV (GLenum operation); -#endif -#endif /* GL_NV_coverage_sample */ - -#ifndef GL_NV_depth_nonlinear -#define GL_NV_depth_nonlinear 1 -#define GL_DEPTH_COMPONENT16_NONLINEAR_NV 0x8E2C -#endif /* GL_NV_depth_nonlinear */ - -#ifndef GL_NV_draw_buffers -#define GL_NV_draw_buffers 1 -#define GL_MAX_DRAW_BUFFERS_NV 0x8824 -#define GL_DRAW_BUFFER0_NV 0x8825 -#define GL_DRAW_BUFFER1_NV 0x8826 -#define GL_DRAW_BUFFER2_NV 0x8827 -#define GL_DRAW_BUFFER3_NV 0x8828 -#define GL_DRAW_BUFFER4_NV 0x8829 -#define GL_DRAW_BUFFER5_NV 0x882A -#define GL_DRAW_BUFFER6_NV 0x882B -#define GL_DRAW_BUFFER7_NV 0x882C -#define GL_DRAW_BUFFER8_NV 0x882D -#define GL_DRAW_BUFFER9_NV 0x882E -#define GL_DRAW_BUFFER10_NV 0x882F -#define GL_DRAW_BUFFER11_NV 0x8830 -#define GL_DRAW_BUFFER12_NV 0x8831 -#define GL_DRAW_BUFFER13_NV 0x8832 -#define GL_DRAW_BUFFER14_NV 0x8833 -#define GL_DRAW_BUFFER15_NV 0x8834 -#define GL_COLOR_ATTACHMENT0_NV 0x8CE0 -#define GL_COLOR_ATTACHMENT1_NV 0x8CE1 -#define GL_COLOR_ATTACHMENT2_NV 0x8CE2 -#define GL_COLOR_ATTACHMENT3_NV 0x8CE3 -#define GL_COLOR_ATTACHMENT4_NV 0x8CE4 -#define GL_COLOR_ATTACHMENT5_NV 0x8CE5 -#define GL_COLOR_ATTACHMENT6_NV 0x8CE6 -#define GL_COLOR_ATTACHMENT7_NV 0x8CE7 -#define GL_COLOR_ATTACHMENT8_NV 0x8CE8 -#define GL_COLOR_ATTACHMENT9_NV 0x8CE9 -#define GL_COLOR_ATTACHMENT10_NV 0x8CEA -#define GL_COLOR_ATTACHMENT11_NV 0x8CEB -#define GL_COLOR_ATTACHMENT12_NV 0x8CEC -#define GL_COLOR_ATTACHMENT13_NV 0x8CED -#define GL_COLOR_ATTACHMENT14_NV 0x8CEE -#define GL_COLOR_ATTACHMENT15_NV 0x8CEF -typedef void (GL_APIENTRYP PFNGLDRAWBUFFERSNVPROC) (GLsizei n, const GLenum *bufs); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawBuffersNV (GLsizei n, const GLenum *bufs); -#endif -#endif /* GL_NV_draw_buffers */ - -#ifndef GL_NV_draw_instanced -#define GL_NV_draw_instanced 1 -typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDNVPROC) (GLenum mode, GLint first, GLsizei count, GLsizei primcount); -typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDNVPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDrawArraysInstancedNV (GLenum mode, GLint first, GLsizei count, GLsizei primcount); -GL_APICALL void GL_APIENTRY glDrawElementsInstancedNV (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); -#endif -#endif /* GL_NV_draw_instanced */ - -#ifndef GL_NV_explicit_attrib_location -#define GL_NV_explicit_attrib_location 1 -#endif /* GL_NV_explicit_attrib_location */ - -#ifndef GL_NV_fbo_color_attachments -#define GL_NV_fbo_color_attachments 1 -#define GL_MAX_COLOR_ATTACHMENTS_NV 0x8CDF -#endif /* GL_NV_fbo_color_attachments */ - -#ifndef GL_NV_fence -#define GL_NV_fence 1 -#define GL_ALL_COMPLETED_NV 0x84F2 -#define GL_FENCE_STATUS_NV 0x84F3 -#define GL_FENCE_CONDITION_NV 0x84F4 -typedef void (GL_APIENTRYP PFNGLDELETEFENCESNVPROC) (GLsizei n, const GLuint *fences); -typedef void (GL_APIENTRYP PFNGLGENFENCESNVPROC) (GLsizei n, GLuint *fences); -typedef GLboolean (GL_APIENTRYP PFNGLISFENCENVPROC) (GLuint fence); -typedef GLboolean (GL_APIENTRYP PFNGLTESTFENCENVPROC) (GLuint fence); -typedef void (GL_APIENTRYP PFNGLGETFENCEIVNVPROC) (GLuint fence, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLFINISHFENCENVPROC) (GLuint fence); -typedef void (GL_APIENTRYP PFNGLSETFENCENVPROC) (GLuint fence, GLenum condition); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glDeleteFencesNV (GLsizei n, const GLuint *fences); -GL_APICALL void GL_APIENTRY glGenFencesNV (GLsizei n, GLuint *fences); -GL_APICALL GLboolean GL_APIENTRY glIsFenceNV (GLuint fence); -GL_APICALL GLboolean GL_APIENTRY glTestFenceNV (GLuint fence); -GL_APICALL void GL_APIENTRY glGetFenceivNV (GLuint fence, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glFinishFenceNV (GLuint fence); -GL_APICALL void GL_APIENTRY glSetFenceNV (GLuint fence, GLenum condition); -#endif -#endif /* GL_NV_fence */ - -#ifndef GL_NV_fill_rectangle -#define GL_NV_fill_rectangle 1 -#define GL_FILL_RECTANGLE_NV 0x933C -#endif /* GL_NV_fill_rectangle */ - -#ifndef GL_NV_fragment_coverage_to_color -#define GL_NV_fragment_coverage_to_color 1 -#define GL_FRAGMENT_COVERAGE_TO_COLOR_NV 0x92DD -#define GL_FRAGMENT_COVERAGE_COLOR_NV 0x92DE -typedef void (GL_APIENTRYP PFNGLFRAGMENTCOVERAGECOLORNVPROC) (GLuint color); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFragmentCoverageColorNV (GLuint color); -#endif -#endif /* GL_NV_fragment_coverage_to_color */ - -#ifndef GL_NV_fragment_shader_interlock -#define GL_NV_fragment_shader_interlock 1 -#endif /* GL_NV_fragment_shader_interlock */ - -#ifndef GL_NV_framebuffer_blit -#define GL_NV_framebuffer_blit 1 -#define GL_READ_FRAMEBUFFER_NV 0x8CA8 -#define GL_DRAW_FRAMEBUFFER_NV 0x8CA9 -#define GL_DRAW_FRAMEBUFFER_BINDING_NV 0x8CA6 -#define GL_READ_FRAMEBUFFER_BINDING_NV 0x8CAA -typedef void (GL_APIENTRYP PFNGLBLITFRAMEBUFFERNVPROC) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glBlitFramebufferNV (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter); -#endif -#endif /* GL_NV_framebuffer_blit */ - -#ifndef GL_NV_framebuffer_mixed_samples -#define GL_NV_framebuffer_mixed_samples 1 -#define GL_COVERAGE_MODULATION_TABLE_NV 0x9331 -#define GL_COLOR_SAMPLES_NV 0x8E20 -#define GL_DEPTH_SAMPLES_NV 0x932D -#define GL_STENCIL_SAMPLES_NV 0x932E -#define GL_MIXED_DEPTH_SAMPLES_SUPPORTED_NV 0x932F -#define GL_MIXED_STENCIL_SAMPLES_SUPPORTED_NV 0x9330 -#define GL_COVERAGE_MODULATION_NV 0x9332 -#define GL_COVERAGE_MODULATION_TABLE_SIZE_NV 0x9333 -typedef void (GL_APIENTRYP PFNGLCOVERAGEMODULATIONTABLENVPROC) (GLsizei n, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLGETCOVERAGEMODULATIONTABLENVPROC) (GLsizei bufsize, GLfloat *v); -typedef void (GL_APIENTRYP PFNGLCOVERAGEMODULATIONNVPROC) (GLenum components); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glCoverageModulationTableNV (GLsizei n, const GLfloat *v); -GL_APICALL void GL_APIENTRY glGetCoverageModulationTableNV (GLsizei bufsize, GLfloat *v); -GL_APICALL void GL_APIENTRY glCoverageModulationNV (GLenum components); -#endif -#endif /* GL_NV_framebuffer_mixed_samples */ - -#ifndef GL_NV_framebuffer_multisample -#define GL_NV_framebuffer_multisample 1 -#define GL_RENDERBUFFER_SAMPLES_NV 0x8CAB -#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_NV 0x8D56 -#define GL_MAX_SAMPLES_NV 0x8D57 -typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLENVPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glRenderbufferStorageMultisampleNV (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height); -#endif -#endif /* GL_NV_framebuffer_multisample */ - -#ifndef GL_NV_generate_mipmap_sRGB -#define GL_NV_generate_mipmap_sRGB 1 -#endif /* GL_NV_generate_mipmap_sRGB */ - -#ifndef GL_NV_geometry_shader_passthrough -#define GL_NV_geometry_shader_passthrough 1 -#endif /* GL_NV_geometry_shader_passthrough */ - -#ifndef GL_NV_gpu_shader5 -#define GL_NV_gpu_shader5 1 -typedef khronos_int64_t GLint64EXT; -typedef khronos_uint64_t GLuint64EXT; -#define GL_INT64_NV 0x140E -#define GL_UNSIGNED_INT64_NV 0x140F -#define GL_INT8_NV 0x8FE0 -#define GL_INT8_VEC2_NV 0x8FE1 -#define GL_INT8_VEC3_NV 0x8FE2 -#define GL_INT8_VEC4_NV 0x8FE3 -#define GL_INT16_NV 0x8FE4 -#define GL_INT16_VEC2_NV 0x8FE5 -#define GL_INT16_VEC3_NV 0x8FE6 -#define GL_INT16_VEC4_NV 0x8FE7 -#define GL_INT64_VEC2_NV 0x8FE9 -#define GL_INT64_VEC3_NV 0x8FEA -#define GL_INT64_VEC4_NV 0x8FEB -#define GL_UNSIGNED_INT8_NV 0x8FEC -#define GL_UNSIGNED_INT8_VEC2_NV 0x8FED -#define GL_UNSIGNED_INT8_VEC3_NV 0x8FEE -#define GL_UNSIGNED_INT8_VEC4_NV 0x8FEF -#define GL_UNSIGNED_INT16_NV 0x8FF0 -#define GL_UNSIGNED_INT16_VEC2_NV 0x8FF1 -#define GL_UNSIGNED_INT16_VEC3_NV 0x8FF2 -#define GL_UNSIGNED_INT16_VEC4_NV 0x8FF3 -#define GL_UNSIGNED_INT64_VEC2_NV 0x8FF5 -#define GL_UNSIGNED_INT64_VEC3_NV 0x8FF6 -#define GL_UNSIGNED_INT64_VEC4_NV 0x8FF7 -#define GL_FLOAT16_NV 0x8FF8 -#define GL_FLOAT16_VEC2_NV 0x8FF9 -#define GL_FLOAT16_VEC3_NV 0x8FFA -#define GL_FLOAT16_VEC4_NV 0x8FFB -#define GL_PATCHES 0x000E -typedef void (GL_APIENTRYP PFNGLUNIFORM1I64NVPROC) (GLint location, GLint64EXT x); -typedef void (GL_APIENTRYP PFNGLUNIFORM2I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y); -typedef void (GL_APIENTRYP PFNGLUNIFORM3I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); -typedef void (GL_APIENTRYP PFNGLUNIFORM4I64NVPROC) (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); -typedef void (GL_APIENTRYP PFNGLUNIFORM1I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM2I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM3I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM4I64VNVPROC) (GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM1UI64NVPROC) (GLint location, GLuint64EXT x); -typedef void (GL_APIENTRYP PFNGLUNIFORM2UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y); -typedef void (GL_APIENTRYP PFNGLUNIFORM3UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); -typedef void (GL_APIENTRYP PFNGLUNIFORM4UI64NVPROC) (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); -typedef void (GL_APIENTRYP PFNGLUNIFORM1UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM2UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM3UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLUNIFORM4UI64VNVPROC) (GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLGETUNIFORMI64VNVPROC) (GLuint program, GLint location, GLint64EXT *params); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1I64NVPROC) (GLuint program, GLint location, GLint64EXT x); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4I64NVPROC) (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4I64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4UI64NVPROC) (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM1UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM2UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM3UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -typedef void (GL_APIENTRYP PFNGLPROGRAMUNIFORM4UI64VNVPROC) (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glUniform1i64NV (GLint location, GLint64EXT x); -GL_APICALL void GL_APIENTRY glUniform2i64NV (GLint location, GLint64EXT x, GLint64EXT y); -GL_APICALL void GL_APIENTRY glUniform3i64NV (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); -GL_APICALL void GL_APIENTRY glUniform4i64NV (GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); -GL_APICALL void GL_APIENTRY glUniform1i64vNV (GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform2i64vNV (GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform3i64vNV (GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform4i64vNV (GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform1ui64NV (GLint location, GLuint64EXT x); -GL_APICALL void GL_APIENTRY glUniform2ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y); -GL_APICALL void GL_APIENTRY glUniform3ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); -GL_APICALL void GL_APIENTRY glUniform4ui64NV (GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); -GL_APICALL void GL_APIENTRY glUniform1ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform2ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform3ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glUniform4ui64vNV (GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glGetUniformi64vNV (GLuint program, GLint location, GLint64EXT *params); -GL_APICALL void GL_APIENTRY glProgramUniform1i64NV (GLuint program, GLint location, GLint64EXT x); -GL_APICALL void GL_APIENTRY glProgramUniform2i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y); -GL_APICALL void GL_APIENTRY glProgramUniform3i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z); -GL_APICALL void GL_APIENTRY glProgramUniform4i64NV (GLuint program, GLint location, GLint64EXT x, GLint64EXT y, GLint64EXT z, GLint64EXT w); -GL_APICALL void GL_APIENTRY glProgramUniform1i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform2i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform3i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform4i64vNV (GLuint program, GLint location, GLsizei count, const GLint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform1ui64NV (GLuint program, GLint location, GLuint64EXT x); -GL_APICALL void GL_APIENTRY glProgramUniform2ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y); -GL_APICALL void GL_APIENTRY glProgramUniform3ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z); -GL_APICALL void GL_APIENTRY glProgramUniform4ui64NV (GLuint program, GLint location, GLuint64EXT x, GLuint64EXT y, GLuint64EXT z, GLuint64EXT w); -GL_APICALL void GL_APIENTRY glProgramUniform1ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform2ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform3ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -GL_APICALL void GL_APIENTRY glProgramUniform4ui64vNV (GLuint program, GLint location, GLsizei count, const GLuint64EXT *value); -#endif -#endif /* GL_NV_gpu_shader5 */ - -#ifndef GL_NV_image_formats -#define GL_NV_image_formats 1 -#endif /* GL_NV_image_formats */ - -#ifndef GL_NV_instanced_arrays -#define GL_NV_instanced_arrays 1 -#define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_NV 0x88FE -typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBDIVISORNVPROC) (GLuint index, GLuint divisor); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glVertexAttribDivisorNV (GLuint index, GLuint divisor); -#endif -#endif /* GL_NV_instanced_arrays */ - -#ifndef GL_NV_internalformat_sample_query -#define GL_NV_internalformat_sample_query 1 -#define GL_TEXTURE_2D_MULTISAMPLE 0x9100 -#define GL_TEXTURE_2D_MULTISAMPLE_ARRAY 0x9102 -#define GL_MULTISAMPLES_NV 0x9371 -#define GL_SUPERSAMPLE_SCALE_X_NV 0x9372 -#define GL_SUPERSAMPLE_SCALE_Y_NV 0x9373 -#define GL_CONFORMANT_NV 0x9374 -typedef void (GL_APIENTRYP PFNGLGETINTERNALFORMATSAMPLEIVNVPROC) (GLenum target, GLenum internalformat, GLsizei samples, GLenum pname, GLsizei bufSize, GLint *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGetInternalformatSampleivNV (GLenum target, GLenum internalformat, GLsizei samples, GLenum pname, GLsizei bufSize, GLint *params); -#endif -#endif /* GL_NV_internalformat_sample_query */ - -#ifndef GL_NV_non_square_matrices -#define GL_NV_non_square_matrices 1 -#define GL_FLOAT_MAT2x3_NV 0x8B65 -#define GL_FLOAT_MAT2x4_NV 0x8B66 -#define GL_FLOAT_MAT3x2_NV 0x8B67 -#define GL_FLOAT_MAT3x4_NV 0x8B68 -#define GL_FLOAT_MAT4x2_NV 0x8B69 -#define GL_FLOAT_MAT4x3_NV 0x8B6A -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX2X3FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX3X2FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX2X4FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX4X2FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX3X4FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLUNIFORMMATRIX4X3FVNVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glUniformMatrix2x3fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix3x2fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix2x4fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix4x2fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix3x4fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -GL_APICALL void GL_APIENTRY glUniformMatrix4x3fvNV (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); -#endif -#endif /* GL_NV_non_square_matrices */ - -#ifndef GL_NV_path_rendering -#define GL_NV_path_rendering 1 -#define GL_PATH_FORMAT_SVG_NV 0x9070 -#define GL_PATH_FORMAT_PS_NV 0x9071 -#define GL_STANDARD_FONT_NAME_NV 0x9072 -#define GL_SYSTEM_FONT_NAME_NV 0x9073 -#define GL_FILE_NAME_NV 0x9074 -#define GL_PATH_STROKE_WIDTH_NV 0x9075 -#define GL_PATH_END_CAPS_NV 0x9076 -#define GL_PATH_INITIAL_END_CAP_NV 0x9077 -#define GL_PATH_TERMINAL_END_CAP_NV 0x9078 -#define GL_PATH_JOIN_STYLE_NV 0x9079 -#define GL_PATH_MITER_LIMIT_NV 0x907A -#define GL_PATH_DASH_CAPS_NV 0x907B -#define GL_PATH_INITIAL_DASH_CAP_NV 0x907C -#define GL_PATH_TERMINAL_DASH_CAP_NV 0x907D -#define GL_PATH_DASH_OFFSET_NV 0x907E -#define GL_PATH_CLIENT_LENGTH_NV 0x907F -#define GL_PATH_FILL_MODE_NV 0x9080 -#define GL_PATH_FILL_MASK_NV 0x9081 -#define GL_PATH_FILL_COVER_MODE_NV 0x9082 -#define GL_PATH_STROKE_COVER_MODE_NV 0x9083 -#define GL_PATH_STROKE_MASK_NV 0x9084 -#define GL_COUNT_UP_NV 0x9088 -#define GL_COUNT_DOWN_NV 0x9089 -#define GL_PATH_OBJECT_BOUNDING_BOX_NV 0x908A -#define GL_CONVEX_HULL_NV 0x908B -#define GL_BOUNDING_BOX_NV 0x908D -#define GL_TRANSLATE_X_NV 0x908E -#define GL_TRANSLATE_Y_NV 0x908F -#define GL_TRANSLATE_2D_NV 0x9090 -#define GL_TRANSLATE_3D_NV 0x9091 -#define GL_AFFINE_2D_NV 0x9092 -#define GL_AFFINE_3D_NV 0x9094 -#define GL_TRANSPOSE_AFFINE_2D_NV 0x9096 -#define GL_TRANSPOSE_AFFINE_3D_NV 0x9098 -#define GL_UTF8_NV 0x909A -#define GL_UTF16_NV 0x909B -#define GL_BOUNDING_BOX_OF_BOUNDING_BOXES_NV 0x909C -#define GL_PATH_COMMAND_COUNT_NV 0x909D -#define GL_PATH_COORD_COUNT_NV 0x909E -#define GL_PATH_DASH_ARRAY_COUNT_NV 0x909F -#define GL_PATH_COMPUTED_LENGTH_NV 0x90A0 -#define GL_PATH_FILL_BOUNDING_BOX_NV 0x90A1 -#define GL_PATH_STROKE_BOUNDING_BOX_NV 0x90A2 -#define GL_SQUARE_NV 0x90A3 -#define GL_ROUND_NV 0x90A4 -#define GL_TRIANGULAR_NV 0x90A5 -#define GL_BEVEL_NV 0x90A6 -#define GL_MITER_REVERT_NV 0x90A7 -#define GL_MITER_TRUNCATE_NV 0x90A8 -#define GL_SKIP_MISSING_GLYPH_NV 0x90A9 -#define GL_USE_MISSING_GLYPH_NV 0x90AA -#define GL_PATH_ERROR_POSITION_NV 0x90AB -#define GL_ACCUM_ADJACENT_PAIRS_NV 0x90AD -#define GL_ADJACENT_PAIRS_NV 0x90AE -#define GL_FIRST_TO_REST_NV 0x90AF -#define GL_PATH_GEN_MODE_NV 0x90B0 -#define GL_PATH_GEN_COEFF_NV 0x90B1 -#define GL_PATH_GEN_COMPONENTS_NV 0x90B3 -#define GL_PATH_STENCIL_FUNC_NV 0x90B7 -#define GL_PATH_STENCIL_REF_NV 0x90B8 -#define GL_PATH_STENCIL_VALUE_MASK_NV 0x90B9 -#define GL_PATH_STENCIL_DEPTH_OFFSET_FACTOR_NV 0x90BD -#define GL_PATH_STENCIL_DEPTH_OFFSET_UNITS_NV 0x90BE -#define GL_PATH_COVER_DEPTH_FUNC_NV 0x90BF -#define GL_PATH_DASH_OFFSET_RESET_NV 0x90B4 -#define GL_MOVE_TO_RESETS_NV 0x90B5 -#define GL_MOVE_TO_CONTINUES_NV 0x90B6 -#define GL_CLOSE_PATH_NV 0x00 -#define GL_MOVE_TO_NV 0x02 -#define GL_RELATIVE_MOVE_TO_NV 0x03 -#define GL_LINE_TO_NV 0x04 -#define GL_RELATIVE_LINE_TO_NV 0x05 -#define GL_HORIZONTAL_LINE_TO_NV 0x06 -#define GL_RELATIVE_HORIZONTAL_LINE_TO_NV 0x07 -#define GL_VERTICAL_LINE_TO_NV 0x08 -#define GL_RELATIVE_VERTICAL_LINE_TO_NV 0x09 -#define GL_QUADRATIC_CURVE_TO_NV 0x0A -#define GL_RELATIVE_QUADRATIC_CURVE_TO_NV 0x0B -#define GL_CUBIC_CURVE_TO_NV 0x0C -#define GL_RELATIVE_CUBIC_CURVE_TO_NV 0x0D -#define GL_SMOOTH_QUADRATIC_CURVE_TO_NV 0x0E -#define GL_RELATIVE_SMOOTH_QUADRATIC_CURVE_TO_NV 0x0F -#define GL_SMOOTH_CUBIC_CURVE_TO_NV 0x10 -#define GL_RELATIVE_SMOOTH_CUBIC_CURVE_TO_NV 0x11 -#define GL_SMALL_CCW_ARC_TO_NV 0x12 -#define GL_RELATIVE_SMALL_CCW_ARC_TO_NV 0x13 -#define GL_SMALL_CW_ARC_TO_NV 0x14 -#define GL_RELATIVE_SMALL_CW_ARC_TO_NV 0x15 -#define GL_LARGE_CCW_ARC_TO_NV 0x16 -#define GL_RELATIVE_LARGE_CCW_ARC_TO_NV 0x17 -#define GL_LARGE_CW_ARC_TO_NV 0x18 -#define GL_RELATIVE_LARGE_CW_ARC_TO_NV 0x19 -#define GL_RESTART_PATH_NV 0xF0 -#define GL_DUP_FIRST_CUBIC_CURVE_TO_NV 0xF2 -#define GL_DUP_LAST_CUBIC_CURVE_TO_NV 0xF4 -#define GL_RECT_NV 0xF6 -#define GL_CIRCULAR_CCW_ARC_TO_NV 0xF8 -#define GL_CIRCULAR_CW_ARC_TO_NV 0xFA -#define GL_CIRCULAR_TANGENT_ARC_TO_NV 0xFC -#define GL_ARC_TO_NV 0xFE -#define GL_RELATIVE_ARC_TO_NV 0xFF -#define GL_BOLD_BIT_NV 0x01 -#define GL_ITALIC_BIT_NV 0x02 -#define GL_GLYPH_WIDTH_BIT_NV 0x01 -#define GL_GLYPH_HEIGHT_BIT_NV 0x02 -#define GL_GLYPH_HORIZONTAL_BEARING_X_BIT_NV 0x04 -#define GL_GLYPH_HORIZONTAL_BEARING_Y_BIT_NV 0x08 -#define GL_GLYPH_HORIZONTAL_BEARING_ADVANCE_BIT_NV 0x10 -#define GL_GLYPH_VERTICAL_BEARING_X_BIT_NV 0x20 -#define GL_GLYPH_VERTICAL_BEARING_Y_BIT_NV 0x40 -#define GL_GLYPH_VERTICAL_BEARING_ADVANCE_BIT_NV 0x80 -#define GL_GLYPH_HAS_KERNING_BIT_NV 0x100 -#define GL_FONT_X_MIN_BOUNDS_BIT_NV 0x00010000 -#define GL_FONT_Y_MIN_BOUNDS_BIT_NV 0x00020000 -#define GL_FONT_X_MAX_BOUNDS_BIT_NV 0x00040000 -#define GL_FONT_Y_MAX_BOUNDS_BIT_NV 0x00080000 -#define GL_FONT_UNITS_PER_EM_BIT_NV 0x00100000 -#define GL_FONT_ASCENDER_BIT_NV 0x00200000 -#define GL_FONT_DESCENDER_BIT_NV 0x00400000 -#define GL_FONT_HEIGHT_BIT_NV 0x00800000 -#define GL_FONT_MAX_ADVANCE_WIDTH_BIT_NV 0x01000000 -#define GL_FONT_MAX_ADVANCE_HEIGHT_BIT_NV 0x02000000 -#define GL_FONT_UNDERLINE_POSITION_BIT_NV 0x04000000 -#define GL_FONT_UNDERLINE_THICKNESS_BIT_NV 0x08000000 -#define GL_FONT_HAS_KERNING_BIT_NV 0x10000000 -#define GL_ROUNDED_RECT_NV 0xE8 -#define GL_RELATIVE_ROUNDED_RECT_NV 0xE9 -#define GL_ROUNDED_RECT2_NV 0xEA -#define GL_RELATIVE_ROUNDED_RECT2_NV 0xEB -#define GL_ROUNDED_RECT4_NV 0xEC -#define GL_RELATIVE_ROUNDED_RECT4_NV 0xED -#define GL_ROUNDED_RECT8_NV 0xEE -#define GL_RELATIVE_ROUNDED_RECT8_NV 0xEF -#define GL_RELATIVE_RECT_NV 0xF7 -#define GL_FONT_GLYPHS_AVAILABLE_NV 0x9368 -#define GL_FONT_TARGET_UNAVAILABLE_NV 0x9369 -#define GL_FONT_UNAVAILABLE_NV 0x936A -#define GL_FONT_UNINTELLIGIBLE_NV 0x936B -#define GL_CONIC_CURVE_TO_NV 0x1A -#define GL_RELATIVE_CONIC_CURVE_TO_NV 0x1B -#define GL_FONT_NUM_GLYPH_INDICES_BIT_NV 0x20000000 -#define GL_STANDARD_FONT_FORMAT_NV 0x936C -#define GL_PATH_PROJECTION_NV 0x1701 -#define GL_PATH_MODELVIEW_NV 0x1700 -#define GL_PATH_MODELVIEW_STACK_DEPTH_NV 0x0BA3 -#define GL_PATH_MODELVIEW_MATRIX_NV 0x0BA6 -#define GL_PATH_MAX_MODELVIEW_STACK_DEPTH_NV 0x0D36 -#define GL_PATH_TRANSPOSE_MODELVIEW_MATRIX_NV 0x84E3 -#define GL_PATH_PROJECTION_STACK_DEPTH_NV 0x0BA4 -#define GL_PATH_PROJECTION_MATRIX_NV 0x0BA7 -#define GL_PATH_MAX_PROJECTION_STACK_DEPTH_NV 0x0D38 -#define GL_PATH_TRANSPOSE_PROJECTION_MATRIX_NV 0x84E4 -#define GL_FRAGMENT_INPUT_NV 0x936D -typedef GLuint (GL_APIENTRYP PFNGLGENPATHSNVPROC) (GLsizei range); -typedef void (GL_APIENTRYP PFNGLDELETEPATHSNVPROC) (GLuint path, GLsizei range); -typedef GLboolean (GL_APIENTRYP PFNGLISPATHNVPROC) (GLuint path); -typedef void (GL_APIENTRYP PFNGLPATHCOMMANDSNVPROC) (GLuint path, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); -typedef void (GL_APIENTRYP PFNGLPATHCOORDSNVPROC) (GLuint path, GLsizei numCoords, GLenum coordType, const void *coords); -typedef void (GL_APIENTRYP PFNGLPATHSUBCOMMANDSNVPROC) (GLuint path, GLsizei commandStart, GLsizei commandsToDelete, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); -typedef void (GL_APIENTRYP PFNGLPATHSUBCOORDSNVPROC) (GLuint path, GLsizei coordStart, GLsizei numCoords, GLenum coordType, const void *coords); -typedef void (GL_APIENTRYP PFNGLPATHSTRINGNVPROC) (GLuint path, GLenum format, GLsizei length, const void *pathString); -typedef void (GL_APIENTRYP PFNGLPATHGLYPHSNVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLsizei numGlyphs, GLenum type, const void *charcodes, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -typedef void (GL_APIENTRYP PFNGLPATHGLYPHRANGENVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyph, GLsizei numGlyphs, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -typedef void (GL_APIENTRYP PFNGLWEIGHTPATHSNVPROC) (GLuint resultPath, GLsizei numPaths, const GLuint *paths, const GLfloat *weights); -typedef void (GL_APIENTRYP PFNGLCOPYPATHNVPROC) (GLuint resultPath, GLuint srcPath); -typedef void (GL_APIENTRYP PFNGLINTERPOLATEPATHSNVPROC) (GLuint resultPath, GLuint pathA, GLuint pathB, GLfloat weight); -typedef void (GL_APIENTRYP PFNGLTRANSFORMPATHNVPROC) (GLuint resultPath, GLuint srcPath, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLPATHPARAMETERIVNVPROC) (GLuint path, GLenum pname, const GLint *value); -typedef void (GL_APIENTRYP PFNGLPATHPARAMETERINVPROC) (GLuint path, GLenum pname, GLint value); -typedef void (GL_APIENTRYP PFNGLPATHPARAMETERFVNVPROC) (GLuint path, GLenum pname, const GLfloat *value); -typedef void (GL_APIENTRYP PFNGLPATHPARAMETERFNVPROC) (GLuint path, GLenum pname, GLfloat value); -typedef void (GL_APIENTRYP PFNGLPATHDASHARRAYNVPROC) (GLuint path, GLsizei dashCount, const GLfloat *dashArray); -typedef void (GL_APIENTRYP PFNGLPATHSTENCILFUNCNVPROC) (GLenum func, GLint ref, GLuint mask); -typedef void (GL_APIENTRYP PFNGLPATHSTENCILDEPTHOFFSETNVPROC) (GLfloat factor, GLfloat units); -typedef void (GL_APIENTRYP PFNGLSTENCILFILLPATHNVPROC) (GLuint path, GLenum fillMode, GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILSTROKEPATHNVPROC) (GLuint path, GLint reference, GLuint mask); -typedef void (GL_APIENTRYP PFNGLSTENCILFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLSTENCILSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLPATHCOVERDEPTHFUNCNVPROC) (GLenum func); -typedef void (GL_APIENTRYP PFNGLCOVERFILLPATHNVPROC) (GLuint path, GLenum coverMode); -typedef void (GL_APIENTRYP PFNGLCOVERSTROKEPATHNVPROC) (GLuint path, GLenum coverMode); -typedef void (GL_APIENTRYP PFNGLCOVERFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLCOVERSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLGETPATHPARAMETERIVNVPROC) (GLuint path, GLenum pname, GLint *value); -typedef void (GL_APIENTRYP PFNGLGETPATHPARAMETERFVNVPROC) (GLuint path, GLenum pname, GLfloat *value); -typedef void (GL_APIENTRYP PFNGLGETPATHCOMMANDSNVPROC) (GLuint path, GLubyte *commands); -typedef void (GL_APIENTRYP PFNGLGETPATHCOORDSNVPROC) (GLuint path, GLfloat *coords); -typedef void (GL_APIENTRYP PFNGLGETPATHDASHARRAYNVPROC) (GLuint path, GLfloat *dashArray); -typedef void (GL_APIENTRYP PFNGLGETPATHMETRICSNVPROC) (GLbitfield metricQueryMask, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLsizei stride, GLfloat *metrics); -typedef void (GL_APIENTRYP PFNGLGETPATHMETRICRANGENVPROC) (GLbitfield metricQueryMask, GLuint firstPathName, GLsizei numPaths, GLsizei stride, GLfloat *metrics); -typedef void (GL_APIENTRYP PFNGLGETPATHSPACINGNVPROC) (GLenum pathListMode, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLfloat advanceScale, GLfloat kerningScale, GLenum transformType, GLfloat *returnedSpacing); -typedef GLboolean (GL_APIENTRYP PFNGLISPOINTINFILLPATHNVPROC) (GLuint path, GLuint mask, GLfloat x, GLfloat y); -typedef GLboolean (GL_APIENTRYP PFNGLISPOINTINSTROKEPATHNVPROC) (GLuint path, GLfloat x, GLfloat y); -typedef GLfloat (GL_APIENTRYP PFNGLGETPATHLENGTHNVPROC) (GLuint path, GLsizei startSegment, GLsizei numSegments); -typedef GLboolean (GL_APIENTRYP PFNGLPOINTALONGPATHNVPROC) (GLuint path, GLsizei startSegment, GLsizei numSegments, GLfloat distance, GLfloat *x, GLfloat *y, GLfloat *tangentX, GLfloat *tangentY); -typedef void (GL_APIENTRYP PFNGLMATRIXLOAD3X2FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLMATRIXLOAD3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLMATRIXLOADTRANSPOSE3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLMATRIXMULT3X2FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLMATRIXMULT3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLMATRIXMULTTRANSPOSE3X3FNVPROC) (GLenum matrixMode, const GLfloat *m); -typedef void (GL_APIENTRYP PFNGLSTENCILTHENCOVERFILLPATHNVPROC) (GLuint path, GLenum fillMode, GLuint mask, GLenum coverMode); -typedef void (GL_APIENTRYP PFNGLSTENCILTHENCOVERSTROKEPATHNVPROC) (GLuint path, GLint reference, GLuint mask, GLenum coverMode); -typedef void (GL_APIENTRYP PFNGLSTENCILTHENCOVERFILLPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -typedef void (GL_APIENTRYP PFNGLSTENCILTHENCOVERSTROKEPATHINSTANCEDNVPROC) (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -typedef GLenum (GL_APIENTRYP PFNGLPATHGLYPHINDEXRANGENVPROC) (GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint pathParameterTemplate, GLfloat emScale, GLuint baseAndCount[2]); -typedef GLenum (GL_APIENTRYP PFNGLPATHGLYPHINDEXARRAYNVPROC) (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -typedef GLenum (GL_APIENTRYP PFNGLPATHMEMORYGLYPHINDEXARRAYNVPROC) (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -typedef void (GL_APIENTRYP PFNGLPROGRAMPATHFRAGMENTINPUTGENNVPROC) (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs); -typedef void (GL_APIENTRYP PFNGLGETPROGRAMRESOURCEFVNVPROC) (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei bufSize, GLsizei *length, GLfloat *params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL GLuint GL_APIENTRY glGenPathsNV (GLsizei range); -GL_APICALL void GL_APIENTRY glDeletePathsNV (GLuint path, GLsizei range); -GL_APICALL GLboolean GL_APIENTRY glIsPathNV (GLuint path); -GL_APICALL void GL_APIENTRY glPathCommandsNV (GLuint path, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); -GL_APICALL void GL_APIENTRY glPathCoordsNV (GLuint path, GLsizei numCoords, GLenum coordType, const void *coords); -GL_APICALL void GL_APIENTRY glPathSubCommandsNV (GLuint path, GLsizei commandStart, GLsizei commandsToDelete, GLsizei numCommands, const GLubyte *commands, GLsizei numCoords, GLenum coordType, const void *coords); -GL_APICALL void GL_APIENTRY glPathSubCoordsNV (GLuint path, GLsizei coordStart, GLsizei numCoords, GLenum coordType, const void *coords); -GL_APICALL void GL_APIENTRY glPathStringNV (GLuint path, GLenum format, GLsizei length, const void *pathString); -GL_APICALL void GL_APIENTRY glPathGlyphsNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLsizei numGlyphs, GLenum type, const void *charcodes, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -GL_APICALL void GL_APIENTRY glPathGlyphRangeNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyph, GLsizei numGlyphs, GLenum handleMissingGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -GL_APICALL void GL_APIENTRY glWeightPathsNV (GLuint resultPath, GLsizei numPaths, const GLuint *paths, const GLfloat *weights); -GL_APICALL void GL_APIENTRY glCopyPathNV (GLuint resultPath, GLuint srcPath); -GL_APICALL void GL_APIENTRY glInterpolatePathsNV (GLuint resultPath, GLuint pathA, GLuint pathB, GLfloat weight); -GL_APICALL void GL_APIENTRY glTransformPathNV (GLuint resultPath, GLuint srcPath, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glPathParameterivNV (GLuint path, GLenum pname, const GLint *value); -GL_APICALL void GL_APIENTRY glPathParameteriNV (GLuint path, GLenum pname, GLint value); -GL_APICALL void GL_APIENTRY glPathParameterfvNV (GLuint path, GLenum pname, const GLfloat *value); -GL_APICALL void GL_APIENTRY glPathParameterfNV (GLuint path, GLenum pname, GLfloat value); -GL_APICALL void GL_APIENTRY glPathDashArrayNV (GLuint path, GLsizei dashCount, const GLfloat *dashArray); -GL_APICALL void GL_APIENTRY glPathStencilFuncNV (GLenum func, GLint ref, GLuint mask); -GL_APICALL void GL_APIENTRY glPathStencilDepthOffsetNV (GLfloat factor, GLfloat units); -GL_APICALL void GL_APIENTRY glStencilFillPathNV (GLuint path, GLenum fillMode, GLuint mask); -GL_APICALL void GL_APIENTRY glStencilStrokePathNV (GLuint path, GLint reference, GLuint mask); -GL_APICALL void GL_APIENTRY glStencilFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glStencilStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glPathCoverDepthFuncNV (GLenum func); -GL_APICALL void GL_APIENTRY glCoverFillPathNV (GLuint path, GLenum coverMode); -GL_APICALL void GL_APIENTRY glCoverStrokePathNV (GLuint path, GLenum coverMode); -GL_APICALL void GL_APIENTRY glCoverFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glCoverStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glGetPathParameterivNV (GLuint path, GLenum pname, GLint *value); -GL_APICALL void GL_APIENTRY glGetPathParameterfvNV (GLuint path, GLenum pname, GLfloat *value); -GL_APICALL void GL_APIENTRY glGetPathCommandsNV (GLuint path, GLubyte *commands); -GL_APICALL void GL_APIENTRY glGetPathCoordsNV (GLuint path, GLfloat *coords); -GL_APICALL void GL_APIENTRY glGetPathDashArrayNV (GLuint path, GLfloat *dashArray); -GL_APICALL void GL_APIENTRY glGetPathMetricsNV (GLbitfield metricQueryMask, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLsizei stride, GLfloat *metrics); -GL_APICALL void GL_APIENTRY glGetPathMetricRangeNV (GLbitfield metricQueryMask, GLuint firstPathName, GLsizei numPaths, GLsizei stride, GLfloat *metrics); -GL_APICALL void GL_APIENTRY glGetPathSpacingNV (GLenum pathListMode, GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLfloat advanceScale, GLfloat kerningScale, GLenum transformType, GLfloat *returnedSpacing); -GL_APICALL GLboolean GL_APIENTRY glIsPointInFillPathNV (GLuint path, GLuint mask, GLfloat x, GLfloat y); -GL_APICALL GLboolean GL_APIENTRY glIsPointInStrokePathNV (GLuint path, GLfloat x, GLfloat y); -GL_APICALL GLfloat GL_APIENTRY glGetPathLengthNV (GLuint path, GLsizei startSegment, GLsizei numSegments); -GL_APICALL GLboolean GL_APIENTRY glPointAlongPathNV (GLuint path, GLsizei startSegment, GLsizei numSegments, GLfloat distance, GLfloat *x, GLfloat *y, GLfloat *tangentX, GLfloat *tangentY); -GL_APICALL void GL_APIENTRY glMatrixLoad3x2fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glMatrixLoad3x3fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glMatrixLoadTranspose3x3fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glMatrixMult3x2fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glMatrixMult3x3fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glMatrixMultTranspose3x3fNV (GLenum matrixMode, const GLfloat *m); -GL_APICALL void GL_APIENTRY glStencilThenCoverFillPathNV (GLuint path, GLenum fillMode, GLuint mask, GLenum coverMode); -GL_APICALL void GL_APIENTRY glStencilThenCoverStrokePathNV (GLuint path, GLint reference, GLuint mask, GLenum coverMode); -GL_APICALL void GL_APIENTRY glStencilThenCoverFillPathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLenum fillMode, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -GL_APICALL void GL_APIENTRY glStencilThenCoverStrokePathInstancedNV (GLsizei numPaths, GLenum pathNameType, const void *paths, GLuint pathBase, GLint reference, GLuint mask, GLenum coverMode, GLenum transformType, const GLfloat *transformValues); -GL_APICALL GLenum GL_APIENTRY glPathGlyphIndexRangeNV (GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint pathParameterTemplate, GLfloat emScale, GLuint baseAndCount[2]); -GL_APICALL GLenum GL_APIENTRY glPathGlyphIndexArrayNV (GLuint firstPathName, GLenum fontTarget, const void *fontName, GLbitfield fontStyle, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -GL_APICALL GLenum GL_APIENTRY glPathMemoryGlyphIndexArrayNV (GLuint firstPathName, GLenum fontTarget, GLsizeiptr fontSize, const void *fontData, GLsizei faceIndex, GLuint firstGlyphIndex, GLsizei numGlyphs, GLuint pathParameterTemplate, GLfloat emScale); -GL_APICALL void GL_APIENTRY glProgramPathFragmentInputGenNV (GLuint program, GLint location, GLenum genMode, GLint components, const GLfloat *coeffs); -GL_APICALL void GL_APIENTRY glGetProgramResourcefvNV (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum *props, GLsizei bufSize, GLsizei *length, GLfloat *params); -#endif -#endif /* GL_NV_path_rendering */ - -#ifndef GL_NV_path_rendering_shared_edge -#define GL_NV_path_rendering_shared_edge 1 -#define GL_SHARED_EDGE_NV 0xC0 -#endif /* GL_NV_path_rendering_shared_edge */ - -#ifndef GL_NV_polygon_mode -#define GL_NV_polygon_mode 1 -#define GL_POLYGON_MODE_NV 0x0B40 -#define GL_POLYGON_OFFSET_POINT_NV 0x2A01 -#define GL_POLYGON_OFFSET_LINE_NV 0x2A02 -#define GL_POINT_NV 0x1B00 -#define GL_LINE_NV 0x1B01 -#define GL_FILL_NV 0x1B02 -typedef void (GL_APIENTRYP PFNGLPOLYGONMODENVPROC) (GLenum face, GLenum mode); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glPolygonModeNV (GLenum face, GLenum mode); -#endif -#endif /* GL_NV_polygon_mode */ - -#ifndef GL_NV_read_buffer -#define GL_NV_read_buffer 1 -#define GL_READ_BUFFER_NV 0x0C02 -typedef void (GL_APIENTRYP PFNGLREADBUFFERNVPROC) (GLenum mode); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glReadBufferNV (GLenum mode); -#endif -#endif /* GL_NV_read_buffer */ - -#ifndef GL_NV_read_buffer_front -#define GL_NV_read_buffer_front 1 -#endif /* GL_NV_read_buffer_front */ - -#ifndef GL_NV_read_depth -#define GL_NV_read_depth 1 -#endif /* GL_NV_read_depth */ - -#ifndef GL_NV_read_depth_stencil -#define GL_NV_read_depth_stencil 1 -#endif /* GL_NV_read_depth_stencil */ - -#ifndef GL_NV_read_stencil -#define GL_NV_read_stencil 1 -#endif /* GL_NV_read_stencil */ - -#ifndef GL_NV_sRGB_formats -#define GL_NV_sRGB_formats 1 -#define GL_SLUMINANCE_NV 0x8C46 -#define GL_SLUMINANCE_ALPHA_NV 0x8C44 -#define GL_SRGB8_NV 0x8C41 -#define GL_SLUMINANCE8_NV 0x8C47 -#define GL_SLUMINANCE8_ALPHA8_NV 0x8C45 -#define GL_COMPRESSED_SRGB_S3TC_DXT1_NV 0x8C4C -#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_NV 0x8C4D -#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_NV 0x8C4E -#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_NV 0x8C4F -#define GL_ETC1_SRGB8_NV 0x88EE -#endif /* GL_NV_sRGB_formats */ - -#ifndef GL_NV_sample_locations -#define GL_NV_sample_locations 1 -#define GL_SAMPLE_LOCATION_SUBPIXEL_BITS_NV 0x933D -#define GL_SAMPLE_LOCATION_PIXEL_GRID_WIDTH_NV 0x933E -#define GL_SAMPLE_LOCATION_PIXEL_GRID_HEIGHT_NV 0x933F -#define GL_PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE_NV 0x9340 -#define GL_SAMPLE_LOCATION_NV 0x8E50 -#define GL_PROGRAMMABLE_SAMPLE_LOCATION_NV 0x9341 -#define GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_NV 0x9342 -#define GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_NV 0x9343 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERSAMPLELOCATIONSFVNVPROC) (GLenum target, GLuint start, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVNVPROC) (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLRESOLVEDEPTHVALUESNVPROC) (void); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferSampleLocationsfvNV (GLenum target, GLuint start, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glNamedFramebufferSampleLocationsfvNV (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glResolveDepthValuesNV (void); -#endif -#endif /* GL_NV_sample_locations */ - -#ifndef GL_NV_sample_mask_override_coverage -#define GL_NV_sample_mask_override_coverage 1 -#endif /* GL_NV_sample_mask_override_coverage */ - -#ifndef GL_NV_shader_atomic_fp16_vector -#define GL_NV_shader_atomic_fp16_vector 1 -#endif /* GL_NV_shader_atomic_fp16_vector */ - -#ifndef GL_NV_shader_noperspective_interpolation -#define GL_NV_shader_noperspective_interpolation 1 -#endif /* GL_NV_shader_noperspective_interpolation */ - -#ifndef GL_NV_shadow_samplers_array -#define GL_NV_shadow_samplers_array 1 -#define GL_SAMPLER_2D_ARRAY_SHADOW_NV 0x8DC4 -#endif /* GL_NV_shadow_samplers_array */ - -#ifndef GL_NV_shadow_samplers_cube -#define GL_NV_shadow_samplers_cube 1 -#define GL_SAMPLER_CUBE_SHADOW_NV 0x8DC5 -#endif /* GL_NV_shadow_samplers_cube */ - -#ifndef GL_NV_texture_border_clamp -#define GL_NV_texture_border_clamp 1 -#define GL_TEXTURE_BORDER_COLOR_NV 0x1004 -#define GL_CLAMP_TO_BORDER_NV 0x812D -#endif /* GL_NV_texture_border_clamp */ - -#ifndef GL_NV_texture_compression_s3tc_update -#define GL_NV_texture_compression_s3tc_update 1 -#endif /* GL_NV_texture_compression_s3tc_update */ - -#ifndef GL_NV_texture_npot_2D_mipmap -#define GL_NV_texture_npot_2D_mipmap 1 -#endif /* GL_NV_texture_npot_2D_mipmap */ - -#ifndef GL_NV_viewport_array -#define GL_NV_viewport_array 1 -#define GL_MAX_VIEWPORTS_NV 0x825B -#define GL_VIEWPORT_SUBPIXEL_BITS_NV 0x825C -#define GL_VIEWPORT_BOUNDS_RANGE_NV 0x825D -#define GL_VIEWPORT_INDEX_PROVOKING_VERTEX_NV 0x825F -typedef void (GL_APIENTRYP PFNGLVIEWPORTARRAYVNVPROC) (GLuint first, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLVIEWPORTINDEXEDFNVPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); -typedef void (GL_APIENTRYP PFNGLVIEWPORTINDEXEDFVNVPROC) (GLuint index, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLSCISSORARRAYVNVPROC) (GLuint first, GLsizei count, const GLint *v); -typedef void (GL_APIENTRYP PFNGLSCISSORINDEXEDNVPROC) (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); -typedef void (GL_APIENTRYP PFNGLSCISSORINDEXEDVNVPROC) (GLuint index, const GLint *v); -typedef void (GL_APIENTRYP PFNGLDEPTHRANGEARRAYFVNVPROC) (GLuint first, GLsizei count, const GLfloat *v); -typedef void (GL_APIENTRYP PFNGLDEPTHRANGEINDEXEDFNVPROC) (GLuint index, GLfloat n, GLfloat f); -typedef void (GL_APIENTRYP PFNGLGETFLOATI_VNVPROC) (GLenum target, GLuint index, GLfloat *data); -typedef void (GL_APIENTRYP PFNGLENABLEINVPROC) (GLenum target, GLuint index); -typedef void (GL_APIENTRYP PFNGLDISABLEINVPROC) (GLenum target, GLuint index); -typedef GLboolean (GL_APIENTRYP PFNGLISENABLEDINVPROC) (GLenum target, GLuint index); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glViewportArrayvNV (GLuint first, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glViewportIndexedfNV (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h); -GL_APICALL void GL_APIENTRY glViewportIndexedfvNV (GLuint index, const GLfloat *v); -GL_APICALL void GL_APIENTRY glScissorArrayvNV (GLuint first, GLsizei count, const GLint *v); -GL_APICALL void GL_APIENTRY glScissorIndexedNV (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height); -GL_APICALL void GL_APIENTRY glScissorIndexedvNV (GLuint index, const GLint *v); -GL_APICALL void GL_APIENTRY glDepthRangeArrayfvNV (GLuint first, GLsizei count, const GLfloat *v); -GL_APICALL void GL_APIENTRY glDepthRangeIndexedfNV (GLuint index, GLfloat n, GLfloat f); -GL_APICALL void GL_APIENTRY glGetFloati_vNV (GLenum target, GLuint index, GLfloat *data); -GL_APICALL void GL_APIENTRY glEnableiNV (GLenum target, GLuint index); -GL_APICALL void GL_APIENTRY glDisableiNV (GLenum target, GLuint index); -GL_APICALL GLboolean GL_APIENTRY glIsEnablediNV (GLenum target, GLuint index); -#endif -#endif /* GL_NV_viewport_array */ - -#ifndef GL_NV_viewport_array2 -#define GL_NV_viewport_array2 1 -#endif /* GL_NV_viewport_array2 */ - -#ifndef GL_NV_viewport_swizzle -#define GL_NV_viewport_swizzle 1 -#define GL_VIEWPORT_SWIZZLE_POSITIVE_X_NV 0x9350 -#define GL_VIEWPORT_SWIZZLE_NEGATIVE_X_NV 0x9351 -#define GL_VIEWPORT_SWIZZLE_POSITIVE_Y_NV 0x9352 -#define GL_VIEWPORT_SWIZZLE_NEGATIVE_Y_NV 0x9353 -#define GL_VIEWPORT_SWIZZLE_POSITIVE_Z_NV 0x9354 -#define GL_VIEWPORT_SWIZZLE_NEGATIVE_Z_NV 0x9355 -#define GL_VIEWPORT_SWIZZLE_POSITIVE_W_NV 0x9356 -#define GL_VIEWPORT_SWIZZLE_NEGATIVE_W_NV 0x9357 -#define GL_VIEWPORT_SWIZZLE_X_NV 0x9358 -#define GL_VIEWPORT_SWIZZLE_Y_NV 0x9359 -#define GL_VIEWPORT_SWIZZLE_Z_NV 0x935A -#define GL_VIEWPORT_SWIZZLE_W_NV 0x935B -typedef void (GL_APIENTRYP PFNGLVIEWPORTSWIZZLENVPROC) (GLuint index, GLenum swizzlex, GLenum swizzley, GLenum swizzlez, GLenum swizzlew); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glViewportSwizzleNV (GLuint index, GLenum swizzlex, GLenum swizzley, GLenum swizzlez, GLenum swizzlew); -#endif -#endif /* GL_NV_viewport_swizzle */ - -#ifndef GL_OVR_multiview -#define GL_OVR_multiview 1 -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_NUM_VIEWS_OVR 0x9630 -#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_BASE_VIEW_INDEX_OVR 0x9632 -#define GL_MAX_VIEWS_OVR 0x9631 -#define GL_FRAMEBUFFER_INCOMPLETE_VIEW_TARGETS_OVR 0x9633 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTUREMULTIVIEWOVRPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint baseViewIndex, GLsizei numViews); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferTextureMultiviewOVR (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint baseViewIndex, GLsizei numViews); -#endif -#endif /* GL_OVR_multiview */ - -#ifndef GL_OVR_multiview2 -#define GL_OVR_multiview2 1 -#endif /* GL_OVR_multiview2 */ - -#ifndef GL_OVR_multiview_multisampled_render_to_texture -#define GL_OVR_multiview_multisampled_render_to_texture 1 -typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTUREMULTISAMPLEMULTIVIEWOVRPROC) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLsizei samples, GLint baseViewIndex, GLsizei numViews); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glFramebufferTextureMultisampleMultiviewOVR (GLenum target, GLenum attachment, GLuint texture, GLint level, GLsizei samples, GLint baseViewIndex, GLsizei numViews); -#endif -#endif /* GL_OVR_multiview_multisampled_render_to_texture */ - -#ifndef GL_QCOM_alpha_test -#define GL_QCOM_alpha_test 1 -#define GL_ALPHA_TEST_QCOM 0x0BC0 -#define GL_ALPHA_TEST_FUNC_QCOM 0x0BC1 -#define GL_ALPHA_TEST_REF_QCOM 0x0BC2 -typedef void (GL_APIENTRYP PFNGLALPHAFUNCQCOMPROC) (GLenum func, GLclampf ref); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glAlphaFuncQCOM (GLenum func, GLclampf ref); -#endif -#endif /* GL_QCOM_alpha_test */ - -#ifndef GL_QCOM_binning_control -#define GL_QCOM_binning_control 1 -#define GL_BINNING_CONTROL_HINT_QCOM 0x8FB0 -#define GL_CPU_OPTIMIZED_QCOM 0x8FB1 -#define GL_GPU_OPTIMIZED_QCOM 0x8FB2 -#define GL_RENDER_DIRECT_TO_FRAMEBUFFER_QCOM 0x8FB3 -#endif /* GL_QCOM_binning_control */ - -#ifndef GL_QCOM_driver_control -#define GL_QCOM_driver_control 1 -typedef void (GL_APIENTRYP PFNGLGETDRIVERCONTROLSQCOMPROC) (GLint *num, GLsizei size, GLuint *driverControls); -typedef void (GL_APIENTRYP PFNGLGETDRIVERCONTROLSTRINGQCOMPROC) (GLuint driverControl, GLsizei bufSize, GLsizei *length, GLchar *driverControlString); -typedef void (GL_APIENTRYP PFNGLENABLEDRIVERCONTROLQCOMPROC) (GLuint driverControl); -typedef void (GL_APIENTRYP PFNGLDISABLEDRIVERCONTROLQCOMPROC) (GLuint driverControl); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glGetDriverControlsQCOM (GLint *num, GLsizei size, GLuint *driverControls); -GL_APICALL void GL_APIENTRY glGetDriverControlStringQCOM (GLuint driverControl, GLsizei bufSize, GLsizei *length, GLchar *driverControlString); -GL_APICALL void GL_APIENTRY glEnableDriverControlQCOM (GLuint driverControl); -GL_APICALL void GL_APIENTRY glDisableDriverControlQCOM (GLuint driverControl); -#endif -#endif /* GL_QCOM_driver_control */ - -#ifndef GL_QCOM_extended_get -#define GL_QCOM_extended_get 1 -#define GL_TEXTURE_WIDTH_QCOM 0x8BD2 -#define GL_TEXTURE_HEIGHT_QCOM 0x8BD3 -#define GL_TEXTURE_DEPTH_QCOM 0x8BD4 -#define GL_TEXTURE_INTERNAL_FORMAT_QCOM 0x8BD5 -#define GL_TEXTURE_FORMAT_QCOM 0x8BD6 -#define GL_TEXTURE_TYPE_QCOM 0x8BD7 -#define GL_TEXTURE_IMAGE_VALID_QCOM 0x8BD8 -#define GL_TEXTURE_NUM_LEVELS_QCOM 0x8BD9 -#define GL_TEXTURE_TARGET_QCOM 0x8BDA -#define GL_TEXTURE_OBJECT_VALID_QCOM 0x8BDB -#define GL_STATE_RESTORE 0x8BDC -typedef void (GL_APIENTRYP PFNGLEXTGETTEXTURESQCOMPROC) (GLuint *textures, GLint maxTextures, GLint *numTextures); -typedef void (GL_APIENTRYP PFNGLEXTGETBUFFERSQCOMPROC) (GLuint *buffers, GLint maxBuffers, GLint *numBuffers); -typedef void (GL_APIENTRYP PFNGLEXTGETRENDERBUFFERSQCOMPROC) (GLuint *renderbuffers, GLint maxRenderbuffers, GLint *numRenderbuffers); -typedef void (GL_APIENTRYP PFNGLEXTGETFRAMEBUFFERSQCOMPROC) (GLuint *framebuffers, GLint maxFramebuffers, GLint *numFramebuffers); -typedef void (GL_APIENTRYP PFNGLEXTGETTEXLEVELPARAMETERIVQCOMPROC) (GLuint texture, GLenum face, GLint level, GLenum pname, GLint *params); -typedef void (GL_APIENTRYP PFNGLEXTTEXOBJECTSTATEOVERRIDEIQCOMPROC) (GLenum target, GLenum pname, GLint param); -typedef void (GL_APIENTRYP PFNGLEXTGETTEXSUBIMAGEQCOMPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, void *texels); -typedef void (GL_APIENTRYP PFNGLEXTGETBUFFERPOINTERVQCOMPROC) (GLenum target, void **params); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glExtGetTexturesQCOM (GLuint *textures, GLint maxTextures, GLint *numTextures); -GL_APICALL void GL_APIENTRY glExtGetBuffersQCOM (GLuint *buffers, GLint maxBuffers, GLint *numBuffers); -GL_APICALL void GL_APIENTRY glExtGetRenderbuffersQCOM (GLuint *renderbuffers, GLint maxRenderbuffers, GLint *numRenderbuffers); -GL_APICALL void GL_APIENTRY glExtGetFramebuffersQCOM (GLuint *framebuffers, GLint maxFramebuffers, GLint *numFramebuffers); -GL_APICALL void GL_APIENTRY glExtGetTexLevelParameterivQCOM (GLuint texture, GLenum face, GLint level, GLenum pname, GLint *params); -GL_APICALL void GL_APIENTRY glExtTexObjectStateOverrideiQCOM (GLenum target, GLenum pname, GLint param); -GL_APICALL void GL_APIENTRY glExtGetTexSubImageQCOM (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, void *texels); -GL_APICALL void GL_APIENTRY glExtGetBufferPointervQCOM (GLenum target, void **params); -#endif -#endif /* GL_QCOM_extended_get */ - -#ifndef GL_QCOM_extended_get2 -#define GL_QCOM_extended_get2 1 -typedef void (GL_APIENTRYP PFNGLEXTGETSHADERSQCOMPROC) (GLuint *shaders, GLint maxShaders, GLint *numShaders); -typedef void (GL_APIENTRYP PFNGLEXTGETPROGRAMSQCOMPROC) (GLuint *programs, GLint maxPrograms, GLint *numPrograms); -typedef GLboolean (GL_APIENTRYP PFNGLEXTISPROGRAMBINARYQCOMPROC) (GLuint program); -typedef void (GL_APIENTRYP PFNGLEXTGETPROGRAMBINARYSOURCEQCOMPROC) (GLuint program, GLenum shadertype, GLchar *source, GLint *length); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glExtGetShadersQCOM (GLuint *shaders, GLint maxShaders, GLint *numShaders); -GL_APICALL void GL_APIENTRY glExtGetProgramsQCOM (GLuint *programs, GLint maxPrograms, GLint *numPrograms); -GL_APICALL GLboolean GL_APIENTRY glExtIsProgramBinaryQCOM (GLuint program); -GL_APICALL void GL_APIENTRY glExtGetProgramBinarySourceQCOM (GLuint program, GLenum shadertype, GLchar *source, GLint *length); -#endif -#endif /* GL_QCOM_extended_get2 */ - -#ifndef GL_QCOM_perfmon_global_mode -#define GL_QCOM_perfmon_global_mode 1 -#define GL_PERFMON_GLOBAL_MODE_QCOM 0x8FA0 -#endif /* GL_QCOM_perfmon_global_mode */ - -#ifndef GL_QCOM_tiled_rendering -#define GL_QCOM_tiled_rendering 1 -#define GL_COLOR_BUFFER_BIT0_QCOM 0x00000001 -#define GL_COLOR_BUFFER_BIT1_QCOM 0x00000002 -#define GL_COLOR_BUFFER_BIT2_QCOM 0x00000004 -#define GL_COLOR_BUFFER_BIT3_QCOM 0x00000008 -#define GL_COLOR_BUFFER_BIT4_QCOM 0x00000010 -#define GL_COLOR_BUFFER_BIT5_QCOM 0x00000020 -#define GL_COLOR_BUFFER_BIT6_QCOM 0x00000040 -#define GL_COLOR_BUFFER_BIT7_QCOM 0x00000080 -#define GL_DEPTH_BUFFER_BIT0_QCOM 0x00000100 -#define GL_DEPTH_BUFFER_BIT1_QCOM 0x00000200 -#define GL_DEPTH_BUFFER_BIT2_QCOM 0x00000400 -#define GL_DEPTH_BUFFER_BIT3_QCOM 0x00000800 -#define GL_DEPTH_BUFFER_BIT4_QCOM 0x00001000 -#define GL_DEPTH_BUFFER_BIT5_QCOM 0x00002000 -#define GL_DEPTH_BUFFER_BIT6_QCOM 0x00004000 -#define GL_DEPTH_BUFFER_BIT7_QCOM 0x00008000 -#define GL_STENCIL_BUFFER_BIT0_QCOM 0x00010000 -#define GL_STENCIL_BUFFER_BIT1_QCOM 0x00020000 -#define GL_STENCIL_BUFFER_BIT2_QCOM 0x00040000 -#define GL_STENCIL_BUFFER_BIT3_QCOM 0x00080000 -#define GL_STENCIL_BUFFER_BIT4_QCOM 0x00100000 -#define GL_STENCIL_BUFFER_BIT5_QCOM 0x00200000 -#define GL_STENCIL_BUFFER_BIT6_QCOM 0x00400000 -#define GL_STENCIL_BUFFER_BIT7_QCOM 0x00800000 -#define GL_MULTISAMPLE_BUFFER_BIT0_QCOM 0x01000000 -#define GL_MULTISAMPLE_BUFFER_BIT1_QCOM 0x02000000 -#define GL_MULTISAMPLE_BUFFER_BIT2_QCOM 0x04000000 -#define GL_MULTISAMPLE_BUFFER_BIT3_QCOM 0x08000000 -#define GL_MULTISAMPLE_BUFFER_BIT4_QCOM 0x10000000 -#define GL_MULTISAMPLE_BUFFER_BIT5_QCOM 0x20000000 -#define GL_MULTISAMPLE_BUFFER_BIT6_QCOM 0x40000000 -#define GL_MULTISAMPLE_BUFFER_BIT7_QCOM 0x80000000 -typedef void (GL_APIENTRYP PFNGLSTARTTILINGQCOMPROC) (GLuint x, GLuint y, GLuint width, GLuint height, GLbitfield preserveMask); -typedef void (GL_APIENTRYP PFNGLENDTILINGQCOMPROC) (GLbitfield preserveMask); -#ifdef GL_GLEXT_PROTOTYPES -GL_APICALL void GL_APIENTRY glStartTilingQCOM (GLuint x, GLuint y, GLuint width, GLuint height, GLbitfield preserveMask); -GL_APICALL void GL_APIENTRY glEndTilingQCOM (GLbitfield preserveMask); -#endif -#endif /* GL_QCOM_tiled_rendering */ - -#ifndef GL_QCOM_writeonly_rendering -#define GL_QCOM_writeonly_rendering 1 -#define GL_WRITEONLY_RENDERING_QCOM 0x8823 -#endif /* GL_QCOM_writeonly_rendering */ - -#ifndef GL_VIV_shader_binary -#define GL_VIV_shader_binary 1 -#define GL_SHADER_BINARY_VIV 0x8FC4 -#endif /* GL_VIV_shader_binary */ - -#ifdef __cplusplus -} -#endif - -#endif diff --git a/screenshot/include/GLES2/gl2platform.h b/screenshot/include/GLES2/gl2platform.h deleted file mode 100755 index eb318dc..0000000 --- a/screenshot/include/GLES2/gl2platform.h +++ /dev/null @@ -1,38 +0,0 @@ -#ifndef __gl2platform_h_ -#define __gl2platform_h_ - -/* -** Copyright (c) 2017 The Khronos Group Inc. -** -** Licensed under the Apache License, Version 2.0 (the "License"); -** you may not use this file except in compliance with the License. -** You may obtain a copy of the License at -** -** http://www.apache.org/licenses/LICENSE-2.0 -** -** Unless required by applicable law or agreed to in writing, software -** distributed under the License is distributed on an "AS IS" BASIS, -** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -** See the License for the specific language governing permissions and -** limitations under the License. -*/ - -/* Platform-specific types and definitions for OpenGL ES 2.X gl2.h - * - * Adopters may modify khrplatform.h and this file to suit their platform. - * Please contribute modifications back to Khronos as pull requests on the - * public github repository: - * https://github.com/KhronosGroup/OpenGL-Registry - */ - -#include - -#ifndef GL_APICALL -#define GL_APICALL KHRONOS_APICALL -#endif - -#ifndef GL_APIENTRY -#define GL_APIENTRY KHRONOS_APIENTRY -#endif - -#endif /* __gl2platform_h_ */ diff --git a/screenshot/include/KHR/khrplatform.h b/screenshot/include/KHR/khrplatform.h deleted file mode 100755 index 07b61b9..0000000 --- a/screenshot/include/KHR/khrplatform.h +++ /dev/null @@ -1,285 +0,0 @@ -#ifndef __khrplatform_h_ -#define __khrplatform_h_ - -/* -** Copyright (c) 2008-2009 The Khronos Group Inc. -** -** Permission is hereby granted, free of charge, to any person obtaining a -** copy of this software and/or associated documentation files (the -** "Materials"), to deal in the Materials without restriction, including -** without limitation the rights to use, copy, modify, merge, publish, -** distribute, sublicense, and/or sell copies of the Materials, and to -** permit persons to whom the Materials are furnished to do so, subject to -** the following conditions: -** -** The above copyright notice and this permission notice shall be included -** in all copies or substantial portions of the Materials. -** -** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. -** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY -** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, -** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE -** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. -*/ - -/* Khronos platform-specific types and definitions. - * - * $Revision: 32517 $ on $Date: 2016-03-11 02:41:19 -0800 (Fri, 11 Mar 2016) $ - * - * Adopters may modify this file to suit their platform. Adopters are - * encouraged to submit platform specific modifications to the Khronos - * group so that they can be included in future versions of this file. - * Please submit changes by sending them to the public Khronos Bugzilla - * (http://khronos.org/bugzilla) by filing a bug against product - * "Khronos (general)" component "Registry". - * - * A predefined template which fills in some of the bug fields can be - * reached using http://tinyurl.com/khrplatform-h-bugreport, but you - * must create a Bugzilla login first. - * - * - * See the Implementer's Guidelines for information about where this file - * should be located on your system and for more details of its use: - * http://www.khronos.org/registry/implementers_guide.pdf - * - * This file should be included as - * #include - * by Khronos client API header files that use its types and defines. - * - * The types in khrplatform.h should only be used to define API-specific types. - * - * Types defined in khrplatform.h: - * khronos_int8_t signed 8 bit - * khronos_uint8_t unsigned 8 bit - * khronos_int16_t signed 16 bit - * khronos_uint16_t unsigned 16 bit - * khronos_int32_t signed 32 bit - * khronos_uint32_t unsigned 32 bit - * khronos_int64_t signed 64 bit - * khronos_uint64_t unsigned 64 bit - * khronos_intptr_t signed same number of bits as a pointer - * khronos_uintptr_t unsigned same number of bits as a pointer - * khronos_ssize_t signed size - * khronos_usize_t unsigned size - * khronos_float_t signed 32 bit floating point - * khronos_time_ns_t unsigned 64 bit time in nanoseconds - * khronos_utime_nanoseconds_t unsigned time interval or absolute time in - * nanoseconds - * khronos_stime_nanoseconds_t signed time interval in nanoseconds - * khronos_boolean_enum_t enumerated boolean type. This should - * only be used as a base type when a client API's boolean type is - * an enum. Client APIs which use an integer or other type for - * booleans cannot use this as the base type for their boolean. - * - * Tokens defined in khrplatform.h: - * - * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. - * - * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. - * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. - * - * Calling convention macros defined in this file: - * KHRONOS_APICALL - * KHRONOS_APIENTRY - * KHRONOS_APIATTRIBUTES - * - * These may be used in function prototypes as: - * - * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( - * int arg1, - * int arg2) KHRONOS_APIATTRIBUTES; - */ - -/*------------------------------------------------------------------------- - * Definition of KHRONOS_APICALL - *------------------------------------------------------------------------- - * This precedes the return type of the function in the function prototype. - */ -#if defined(_WIN32) && !defined(__SCITECH_SNAP__) -# define KHRONOS_APICALL __declspec(dllimport) -#elif defined (__SYMBIAN32__) -# define KHRONOS_APICALL IMPORT_C -#elif defined(__ANDROID__) -# include -# define KHRONOS_APICALL __attribute__((visibility("default"))) __NDK_FPABI__ -#else -# define KHRONOS_APICALL -#endif - -/*------------------------------------------------------------------------- - * Definition of KHRONOS_APIENTRY - *------------------------------------------------------------------------- - * This follows the return type of the function and precedes the function - * name in the function prototype. - */ -#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) - /* Win32 but not WinCE */ -# define KHRONOS_APIENTRY __stdcall -#else -# define KHRONOS_APIENTRY -#endif - -/*------------------------------------------------------------------------- - * Definition of KHRONOS_APIATTRIBUTES - *------------------------------------------------------------------------- - * This follows the closing parenthesis of the function prototype arguments. - */ -#if defined (__ARMCC_2__) -#define KHRONOS_APIATTRIBUTES __softfp -#else -#define KHRONOS_APIATTRIBUTES -#endif - -/*------------------------------------------------------------------------- - * basic type definitions - *-----------------------------------------------------------------------*/ -#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) - - -/* - * Using - */ -#include -typedef int32_t khronos_int32_t; -typedef uint32_t khronos_uint32_t; -typedef int64_t khronos_int64_t; -typedef uint64_t khronos_uint64_t; -#define KHRONOS_SUPPORT_INT64 1 -#define KHRONOS_SUPPORT_FLOAT 1 - -#elif defined(__VMS ) || defined(__sgi) - -/* - * Using - */ -#include -typedef int32_t khronos_int32_t; -typedef uint32_t khronos_uint32_t; -typedef int64_t khronos_int64_t; -typedef uint64_t khronos_uint64_t; -#define KHRONOS_SUPPORT_INT64 1 -#define KHRONOS_SUPPORT_FLOAT 1 - -#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) - -/* - * Win32 - */ -typedef __int32 khronos_int32_t; -typedef unsigned __int32 khronos_uint32_t; -typedef __int64 khronos_int64_t; -typedef unsigned __int64 khronos_uint64_t; -#define KHRONOS_SUPPORT_INT64 1 -#define KHRONOS_SUPPORT_FLOAT 1 - -#elif defined(__sun__) || defined(__digital__) - -/* - * Sun or Digital - */ -typedef int khronos_int32_t; -typedef unsigned int khronos_uint32_t; -#if defined(__arch64__) || defined(_LP64) -typedef long int khronos_int64_t; -typedef unsigned long int khronos_uint64_t; -#else -typedef long long int khronos_int64_t; -typedef unsigned long long int khronos_uint64_t; -#endif /* __arch64__ */ -#define KHRONOS_SUPPORT_INT64 1 -#define KHRONOS_SUPPORT_FLOAT 1 - -#elif 0 - -/* - * Hypothetical platform with no float or int64 support - */ -typedef int khronos_int32_t; -typedef unsigned int khronos_uint32_t; -#define KHRONOS_SUPPORT_INT64 0 -#define KHRONOS_SUPPORT_FLOAT 0 - -#else - -/* - * Generic fallback - */ -#include -typedef int32_t khronos_int32_t; -typedef uint32_t khronos_uint32_t; -typedef int64_t khronos_int64_t; -typedef uint64_t khronos_uint64_t; -#define KHRONOS_SUPPORT_INT64 1 -#define KHRONOS_SUPPORT_FLOAT 1 - -#endif - - -/* - * Types that are (so far) the same on all platforms - */ -typedef signed char khronos_int8_t; -typedef unsigned char khronos_uint8_t; -typedef signed short int khronos_int16_t; -typedef unsigned short int khronos_uint16_t; - -/* - * Types that differ between LLP64 and LP64 architectures - in LLP64, - * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears - * to be the only LLP64 architecture in current use. - */ -#ifdef _WIN64 -typedef signed long long int khronos_intptr_t; -typedef unsigned long long int khronos_uintptr_t; -typedef signed long long int khronos_ssize_t; -typedef unsigned long long int khronos_usize_t; -#else -typedef signed long int khronos_intptr_t; -typedef unsigned long int khronos_uintptr_t; -typedef signed long int khronos_ssize_t; -typedef unsigned long int khronos_usize_t; -#endif - -#if KHRONOS_SUPPORT_FLOAT -/* - * Float type - */ -typedef float khronos_float_t; -#endif - -#if KHRONOS_SUPPORT_INT64 -/* Time types - * - * These types can be used to represent a time interval in nanoseconds or - * an absolute Unadjusted System Time. Unadjusted System Time is the number - * of nanoseconds since some arbitrary system event (e.g. since the last - * time the system booted). The Unadjusted System Time is an unsigned - * 64 bit value that wraps back to 0 every 584 years. Time intervals - * may be either signed or unsigned. - */ -typedef khronos_uint64_t khronos_utime_nanoseconds_t; -typedef khronos_int64_t khronos_stime_nanoseconds_t; -#endif - -/* - * Dummy value used to pad enum types to 32 bits. - */ -#ifndef KHRONOS_MAX_ENUM -#define KHRONOS_MAX_ENUM 0x7FFFFFFF -#endif - -/* - * Enumerated boolean type - * - * Values other than zero should be considered to be true. Therefore - * comparisons should not be made against KHRONOS_TRUE. - */ -typedef enum { - KHRONOS_FALSE = 0, - KHRONOS_TRUE = 1, - KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM -} khronos_boolean_enum_t; - -#endif /* __khrplatform_h_ */ diff --git a/screenshot/include/lodepng.h b/screenshot/include/lodepng.h deleted file mode 100755 index 8c634d2..0000000 --- a/screenshot/include/lodepng.h +++ /dev/null @@ -1,1761 +0,0 @@ -/* -LodePNG version 20161127 - -Copyright (c) 2005-2016 Lode Vandevenne - -This software is provided 'as-is', without any express or implied -warranty. In no event will the authors be held liable for any damages -arising from the use of this software. - -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it -freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source - distribution. -*/ - -#ifndef LODEPNG_H -#define LODEPNG_H - -#include /*for size_t*/ - -extern const char* LODEPNG_VERSION_STRING; - -/* -The following #defines are used to create code sections. They can be disabled -to disable code sections, which can give faster compile time and smaller binary. -The "NO_COMPILE" defines are designed to be used to pass as defines to the -compiler command to disable them without modifying this header, e.g. --DLODEPNG_NO_COMPILE_ZLIB for gcc. -In addition to those below, you can also define LODEPNG_NO_COMPILE_CRC to -allow implementing a custom lodepng_crc32. -*/ -/*deflate & zlib. If disabled, you must specify alternative zlib functions in -the custom_zlib field of the compress and decompress settings*/ -#ifndef LODEPNG_NO_COMPILE_ZLIB -#define LODEPNG_COMPILE_ZLIB -#endif -/*png encoder and png decoder*/ -#ifndef LODEPNG_NO_COMPILE_PNG -#define LODEPNG_COMPILE_PNG -#endif -/*deflate&zlib decoder and png decoder*/ -#ifndef LODEPNG_NO_COMPILE_DECODER -#define LODEPNG_COMPILE_DECODER -#endif -/*deflate&zlib encoder and png encoder*/ -#ifndef LODEPNG_NO_COMPILE_ENCODER -#define LODEPNG_COMPILE_ENCODER -#endif -/*the optional built in harddisk file loading and saving functions*/ -#ifndef LODEPNG_NO_COMPILE_DISK -#define LODEPNG_COMPILE_DISK -#endif -/*support for chunks other than IHDR, IDAT, PLTE, tRNS, IEND: ancillary and unknown chunks*/ -#ifndef LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS -#define LODEPNG_COMPILE_ANCILLARY_CHUNKS -#endif -/*ability to convert error numerical codes to English text string*/ -#ifndef LODEPNG_NO_COMPILE_ERROR_TEXT -#define LODEPNG_COMPILE_ERROR_TEXT -#endif -/*Compile the default allocators (C's free, malloc and realloc). If you disable this, -you can define the functions lodepng_free, lodepng_malloc and lodepng_realloc in your -source files with custom allocators.*/ -#ifndef LODEPNG_NO_COMPILE_ALLOCATORS -#define LODEPNG_COMPILE_ALLOCATORS -#endif -/*compile the C++ version (you can disable the C++ wrapper here even when compiling for C++)*/ -#ifdef __cplusplus -#ifndef LODEPNG_NO_COMPILE_CPP -#define LODEPNG_COMPILE_CPP -#endif -#endif - -#ifdef LODEPNG_COMPILE_CPP -#include -#include -#endif /*LODEPNG_COMPILE_CPP*/ - -#ifdef LODEPNG_COMPILE_PNG -/*The PNG color types (also used for raw).*/ -typedef enum LodePNGColorType -{ - LCT_GREY = 0, /*greyscale: 1,2,4,8,16 bit*/ - LCT_RGB = 2, /*RGB: 8,16 bit*/ - LCT_PALETTE = 3, /*palette: 1,2,4,8 bit*/ - LCT_GREY_ALPHA = 4, /*greyscale with alpha: 8,16 bit*/ - LCT_RGBA = 6 /*RGB with alpha: 8,16 bit*/ -} LodePNGColorType; - -#ifdef LODEPNG_COMPILE_DECODER -/* -Converts PNG data in memory to raw pixel data. -out: Output parameter. Pointer to buffer that will contain the raw pixel data. - After decoding, its size is w * h * (bytes per pixel) bytes larger than - initially. Bytes per pixel depends on colortype and bitdepth. - Must be freed after usage with free(*out). - Note: for 16-bit per channel colors, uses big endian format like PNG does. -w: Output parameter. Pointer to width of pixel data. -h: Output parameter. Pointer to height of pixel data. -in: Memory buffer with the PNG file. -insize: size of the in buffer. -colortype: the desired color type for the raw output image. See explanation on PNG color types. -bitdepth: the desired bit depth for the raw output image. See explanation on PNG color types. -Return value: LodePNG error code (0 means no error). -*/ -unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_decode_memory, but always decodes to 32-bit RGBA raw image*/ -unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize); - -/*Same as lodepng_decode_memory, but always decodes to 24-bit RGB raw image*/ -unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h, - const unsigned char* in, size_t insize); - -#ifdef LODEPNG_COMPILE_DISK -/* -Load PNG from disk, from file with given name. -Same as the other decode functions, but instead takes a filename as input. -*/ -unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_decode_file, but always decodes to 32-bit RGBA raw image.*/ -unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename); - -/*Same as lodepng_decode_file, but always decodes to 24-bit RGB raw image.*/ -unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h, - const char* filename); -#endif /*LODEPNG_COMPILE_DISK*/ -#endif /*LODEPNG_COMPILE_DECODER*/ - - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Converts raw pixel data into a PNG image in memory. The colortype and bitdepth - of the output PNG image cannot be chosen, they are automatically determined - by the colortype, bitdepth and content of the input pixel data. - Note: for 16-bit per channel colors, needs big endian format like PNG does. -out: Output parameter. Pointer to buffer that will contain the PNG image data. - Must be freed after usage with free(*out). -outsize: Output parameter. Pointer to the size in bytes of the out buffer. -image: The raw pixel data to encode. The size of this buffer should be - w * h * (bytes per pixel), bytes per pixel depends on colortype and bitdepth. -w: width of the raw pixel data in pixels. -h: height of the raw pixel data in pixels. -colortype: the color type of the raw input image. See explanation on PNG color types. -bitdepth: the bit depth of the raw input image. See explanation on PNG color types. -Return value: LodePNG error code (0 means no error). -*/ -unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_encode_memory, but always encodes from 32-bit RGBA raw image.*/ -unsigned lodepng_encode32(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h); - -/*Same as lodepng_encode_memory, but always encodes from 24-bit RGB raw image.*/ -unsigned lodepng_encode24(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h); - -#ifdef LODEPNG_COMPILE_DISK -/* -Converts raw pixel data into a PNG file on disk. -Same as the other encode functions, but instead takes a filename as output. -NOTE: This overwrites existing files without warning! -*/ -unsigned lodepng_encode_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth); - -/*Same as lodepng_encode_file, but always encodes from 32-bit RGBA raw image.*/ -unsigned lodepng_encode32_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h); - -/*Same as lodepng_encode_file, but always encodes from 24-bit RGB raw image.*/ -unsigned lodepng_encode24_file(const char* filename, - const unsigned char* image, unsigned w, unsigned h); -#endif /*LODEPNG_COMPILE_DISK*/ -#endif /*LODEPNG_COMPILE_ENCODER*/ - - -#ifdef LODEPNG_COMPILE_CPP -namespace lodepng -{ -#ifdef LODEPNG_COMPILE_DECODER -/*Same as lodepng_decode_memory, but decodes to an std::vector. The colortype -is the format to output the pixels to. Default is RGBA 8-bit per channel.*/ -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - const unsigned char* in, size_t insize, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - const std::vector& in, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#ifdef LODEPNG_COMPILE_DISK -/* -Converts PNG file from disk to raw pixel data in memory. -Same as the other decode functions, but instead takes a filename as input. -*/ -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - const std::string& filename, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -/*Same as lodepng_encode_memory, but encodes to an std::vector. colortype -is that of the raw input data. The output PNG color type will be auto chosen.*/ -unsigned encode(std::vector& out, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned encode(std::vector& out, - const std::vector& in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#ifdef LODEPNG_COMPILE_DISK -/* -Converts 32-bit RGBA raw pixel data into a PNG file on disk. -Same as the other encode functions, but instead takes a filename as output. -NOTE: This overwrites existing files without warning! -*/ -unsigned encode(const std::string& filename, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -unsigned encode(const std::string& filename, - const std::vector& in, unsigned w, unsigned h, - LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_ENCODER */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ERROR_TEXT -/*Returns an English description of the numerical error code.*/ -const char* lodepng_error_text(unsigned code); -#endif /*LODEPNG_COMPILE_ERROR_TEXT*/ - -#ifdef LODEPNG_COMPILE_DECODER -/*Settings for zlib decompression*/ -typedef struct LodePNGDecompressSettings LodePNGDecompressSettings; -struct LodePNGDecompressSettings -{ - unsigned ignore_adler32; /*if 1, continue and don't give an error message if the Adler32 checksum is corrupted*/ - - /*use custom zlib decoder instead of built in one (default: null)*/ - unsigned (*custom_zlib)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGDecompressSettings*); - /*use custom deflate decoder instead of built in one (default: null) - if custom_zlib is used, custom_deflate is ignored since only the built in - zlib function will call custom_deflate*/ - unsigned (*custom_inflate)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGDecompressSettings*); - - const void* custom_context; /*optional custom settings for custom functions*/ -}; - -extern const LodePNGDecompressSettings lodepng_default_decompress_settings; -void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Settings for zlib compression. Tweaking these settings tweaks the balance -between speed and compression ratio. -*/ -typedef struct LodePNGCompressSettings LodePNGCompressSettings; -struct LodePNGCompressSettings /*deflate = compress*/ -{ - /*LZ77 related settings*/ - unsigned btype; /*the block type for LZ (0, 1, 2 or 3, see zlib standard). Should be 2 for proper compression.*/ - unsigned use_lz77; /*whether or not to use LZ77. Should be 1 for proper compression.*/ - unsigned windowsize; /*must be a power of two <= 32768. higher compresses more but is slower. Default value: 2048.*/ - unsigned minmatch; /*mininum lz77 length. 3 is normally best, 6 can be better for some PNGs. Default: 0*/ - unsigned nicematch; /*stop searching if >= this length found. Set to 258 for best compression. Default: 128*/ - unsigned lazymatching; /*use lazy matching: better compression but a bit slower. Default: true*/ - - /*use custom zlib encoder instead of built in one (default: null)*/ - unsigned (*custom_zlib)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGCompressSettings*); - /*use custom deflate encoder instead of built in one (default: null) - if custom_zlib is used, custom_deflate is ignored since only the built in - zlib function will call custom_deflate*/ - unsigned (*custom_deflate)(unsigned char**, size_t*, - const unsigned char*, size_t, - const LodePNGCompressSettings*); - - const void* custom_context; /*optional custom settings for custom functions*/ -}; - -extern const LodePNGCompressSettings lodepng_default_compress_settings; -void lodepng_compress_settings_init(LodePNGCompressSettings* settings); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_PNG -/* -Color mode of an image. Contains all information required to decode the pixel -bits to RGBA colors. This information is the same as used in the PNG file -format, and is used both for PNG and raw image data in LodePNG. -*/ -typedef struct LodePNGColorMode -{ - /*header (IHDR)*/ - LodePNGColorType colortype; /*color type, see PNG standard or documentation further in this header file*/ - unsigned bitdepth; /*bits per sample, see PNG standard or documentation further in this header file*/ - - /* - palette (PLTE and tRNS) - - Dynamically allocated with the colors of the palette, including alpha. - When encoding a PNG, to store your colors in the palette of the LodePNGColorMode, first use - lodepng_palette_clear, then for each color use lodepng_palette_add. - If you encode an image without alpha with palette, don't forget to put value 255 in each A byte of the palette. - - When decoding, by default you can ignore this palette, since LodePNG already - fills the palette colors in the pixels of the raw RGBA output. - - The palette is only supported for color type 3. - */ - unsigned char* palette; /*palette in RGBARGBA... order. When allocated, must be either 0, or have size 1024*/ - size_t palettesize; /*palette size in number of colors (amount of bytes is 4 * palettesize)*/ - - /* - transparent color key (tRNS) - - This color uses the same bit depth as the bitdepth value in this struct, which can be 1-bit to 16-bit. - For greyscale PNGs, r, g and b will all 3 be set to the same. - - When decoding, by default you can ignore this information, since LodePNG sets - pixels with this key to transparent already in the raw RGBA output. - - The color key is only supported for color types 0 and 2. - */ - unsigned key_defined; /*is a transparent color key given? 0 = false, 1 = true*/ - unsigned key_r; /*red/greyscale component of color key*/ - unsigned key_g; /*green component of color key*/ - unsigned key_b; /*blue component of color key*/ -} LodePNGColorMode; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_color_mode_init(LodePNGColorMode* info); -void lodepng_color_mode_cleanup(LodePNGColorMode* info); -/*return value is error code (0 means no error)*/ -unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source); - -void lodepng_palette_clear(LodePNGColorMode* info); -/*add 1 color to the palette*/ -unsigned lodepng_palette_add(LodePNGColorMode* info, - unsigned char r, unsigned char g, unsigned char b, unsigned char a); - -/*get the total amount of bits per pixel, based on colortype and bitdepth in the struct*/ -unsigned lodepng_get_bpp(const LodePNGColorMode* info); -/*get the amount of color channels used, based on colortype in the struct. -If a palette is used, it counts as 1 channel.*/ -unsigned lodepng_get_channels(const LodePNGColorMode* info); -/*is it a greyscale type? (only colortype 0 or 4)*/ -unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info); -/*has it got an alpha channel? (only colortype 2 or 6)*/ -unsigned lodepng_is_alpha_type(const LodePNGColorMode* info); -/*has it got a palette? (only colortype 3)*/ -unsigned lodepng_is_palette_type(const LodePNGColorMode* info); -/*only returns true if there is a palette and there is a value in the palette with alpha < 255. -Loops through the palette to check this.*/ -unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info); -/* -Check if the given color info indicates the possibility of having non-opaque pixels in the PNG image. -Returns true if the image can have translucent or invisible pixels (it still be opaque if it doesn't use such pixels). -Returns false if the image can only have opaque pixels. -In detail, it returns true only if it's a color type with alpha, or has a palette with non-opaque values, -or if "key_defined" is true. -*/ -unsigned lodepng_can_have_alpha(const LodePNGColorMode* info); -/*Returns the byte size of a raw image buffer with given width, height and color mode*/ -size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*The information of a Time chunk in PNG.*/ -typedef struct LodePNGTime -{ - unsigned year; /*2 bytes used (0-65535)*/ - unsigned month; /*1-12*/ - unsigned day; /*1-31*/ - unsigned hour; /*0-23*/ - unsigned minute; /*0-59*/ - unsigned second; /*0-60 (to allow for leap seconds)*/ -} LodePNGTime; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/*Information about the PNG image, except pixels, width and height.*/ -typedef struct LodePNGInfo -{ - /*header (IHDR), palette (PLTE) and transparency (tRNS) chunks*/ - unsigned compression_method;/*compression method of the original file. Always 0.*/ - unsigned filter_method; /*filter method of the original file*/ - unsigned interlace_method; /*interlace method of the original file*/ - LodePNGColorMode color; /*color type and bits, palette and transparency of the PNG file*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /* - suggested background color chunk (bKGD) - This color uses the same color mode as the PNG (except alpha channel), which can be 1-bit to 16-bit. - - For greyscale PNGs, r, g and b will all 3 be set to the same. When encoding - the encoder writes the red one. For palette PNGs: When decoding, the RGB value - will be stored, not a palette index. But when encoding, specify the index of - the palette in background_r, the other two are then ignored. - - The decoder does not use this background color to edit the color of pixels. - */ - unsigned background_defined; /*is a suggested background color given?*/ - unsigned background_r; /*red component of suggested background color*/ - unsigned background_g; /*green component of suggested background color*/ - unsigned background_b; /*blue component of suggested background color*/ - - /* - non-international text chunks (tEXt and zTXt) - - The char** arrays each contain num strings. The actual messages are in - text_strings, while text_keys are keywords that give a short description what - the actual text represents, e.g. Title, Author, Description, or anything else. - - A keyword is minimum 1 character and maximum 79 characters long. It's - discouraged to use a single line length longer than 79 characters for texts. - - Don't allocate these text buffers yourself. Use the init/cleanup functions - correctly and use lodepng_add_text and lodepng_clear_text. - */ - size_t text_num; /*the amount of texts in these char** buffers (there may be more texts in itext)*/ - char** text_keys; /*the keyword of a text chunk (e.g. "Comment")*/ - char** text_strings; /*the actual text*/ - - /* - international text chunks (iTXt) - Similar to the non-international text chunks, but with additional strings - "langtags" and "transkeys". - */ - size_t itext_num; /*the amount of international texts in this PNG*/ - char** itext_keys; /*the English keyword of the text chunk (e.g. "Comment")*/ - char** itext_langtags; /*language tag for this text's language, ISO/IEC 646 string, e.g. ISO 639 language tag*/ - char** itext_transkeys; /*keyword translated to the international language - UTF-8 string*/ - char** itext_strings; /*the actual international text - UTF-8 string*/ - - /*time chunk (tIME)*/ - unsigned time_defined; /*set to 1 to make the encoder generate a tIME chunk*/ - LodePNGTime time; - - /*phys chunk (pHYs)*/ - unsigned phys_defined; /*if 0, there is no pHYs chunk and the values below are undefined, if 1 else there is one*/ - unsigned phys_x; /*pixels per unit in x direction*/ - unsigned phys_y; /*pixels per unit in y direction*/ - unsigned phys_unit; /*may be 0 (unknown unit) or 1 (metre)*/ - - /* - unknown chunks - There are 3 buffers, one for each position in the PNG where unknown chunks can appear - each buffer contains all unknown chunks for that position consecutively - The 3 buffers are the unknown chunks between certain critical chunks: - 0: IHDR-PLTE, 1: PLTE-IDAT, 2: IDAT-IEND - Do not allocate or traverse this data yourself. Use the chunk traversing functions declared - later, such as lodepng_chunk_next and lodepng_chunk_append, to read/write this struct. - */ - unsigned char* unknown_chunks_data[3]; - size_t unknown_chunks_size[3]; /*size in bytes of the unknown chunks, given for protection*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGInfo; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_info_init(LodePNGInfo* info); -void lodepng_info_cleanup(LodePNGInfo* info); -/*return value is error code (0 means no error)*/ -unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -void lodepng_clear_text(LodePNGInfo* info); /*use this to clear the texts again after you filled them in*/ -unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str); /*push back both texts at once*/ - -void lodepng_clear_itext(LodePNGInfo* info); /*use this to clear the itexts again after you filled them in*/ -unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag, - const char* transkey, const char* str); /*push back the 4 texts of 1 chunk at once*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/* -Converts raw buffer from one color type to another color type, based on -LodePNGColorMode structs to describe the input and output color type. -See the reference manual at the end of this header file to see which color conversions are supported. -return value = LodePNG error code (0 if all went ok, an error if the conversion isn't supported) -The out buffer must have size (w * h * bpp + 7) / 8, where bpp is the bits per pixel -of the output color type (lodepng_get_bpp). -For < 8 bpp images, there should not be padding bits at the end of scanlines. -For 16-bit per channel colors, uses big endian format like PNG does. -Return value is LodePNG error code -*/ -unsigned lodepng_convert(unsigned char* out, const unsigned char* in, - const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in, - unsigned w, unsigned h); - -#ifdef LODEPNG_COMPILE_DECODER -/* -Settings for the decoder. This contains settings for the PNG and the Zlib -decoder, but not the Info settings from the Info structs. -*/ -typedef struct LodePNGDecoderSettings -{ - LodePNGDecompressSettings zlibsettings; /*in here is the setting to ignore Adler32 checksums*/ - - unsigned ignore_crc; /*ignore CRC checksums*/ - - unsigned color_convert; /*whether to convert the PNG to the color type you want. Default: yes*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - unsigned read_text_chunks; /*if false but remember_unknown_chunks is true, they're stored in the unknown chunks*/ - /*store all bytes from unknown chunks in the LodePNGInfo (off by default, useful for a png editor)*/ - unsigned remember_unknown_chunks; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGDecoderSettings; - -void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/*automatically use color type with less bits per pixel if losslessly possible. Default: AUTO*/ -typedef enum LodePNGFilterStrategy -{ - /*every filter at zero*/ - LFS_ZERO, - /*Use filter that gives minimum sum, as described in the official PNG filter heuristic.*/ - LFS_MINSUM, - /*Use the filter type that gives smallest Shannon entropy for this scanline. Depending - on the image, this is better or worse than minsum.*/ - LFS_ENTROPY, - /* - Brute-force-search PNG filters by compressing each filter for each scanline. - Experimental, very slow, and only rarely gives better compression than MINSUM. - */ - LFS_BRUTE_FORCE, - /*use predefined_filters buffer: you specify the filter type for each scanline*/ - LFS_PREDEFINED -} LodePNGFilterStrategy; - -/*Gives characteristics about the colors of the image, which helps decide which color model to use for encoding. -Used internally by default if "auto_convert" is enabled. Public because it's useful for custom algorithms.*/ -typedef struct LodePNGColorProfile -{ - unsigned colored; /*not greyscale*/ - unsigned key; /*image is not opaque and color key is possible instead of full alpha*/ - unsigned short key_r; /*key values, always as 16-bit, in 8-bit case the byte is duplicated, e.g. 65535 means 255*/ - unsigned short key_g; - unsigned short key_b; - unsigned alpha; /*image is not opaque and alpha channel or alpha palette required*/ - unsigned numcolors; /*amount of colors, up to 257. Not valid if bits == 16.*/ - unsigned char palette[1024]; /*Remembers up to the first 256 RGBA colors, in no particular order*/ - unsigned bits; /*bits per channel (not for palette). 1,2 or 4 for greyscale only. 16 if 16-bit per channel required.*/ -} LodePNGColorProfile; - -void lodepng_color_profile_init(LodePNGColorProfile* profile); - -/*Get a LodePNGColorProfile of the image.*/ -unsigned lodepng_get_color_profile(LodePNGColorProfile* profile, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in); -/*The function LodePNG uses internally to decide the PNG color with auto_convert. -Chooses an optimal color model, e.g. grey if only grey pixels, palette if < 256 colors, ...*/ -unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in); - -/*Settings for the encoder.*/ -typedef struct LodePNGEncoderSettings -{ - LodePNGCompressSettings zlibsettings; /*settings for the zlib encoder, such as window size, ...*/ - - unsigned auto_convert; /*automatically choose output PNG color type. Default: true*/ - - /*If true, follows the official PNG heuristic: if the PNG uses a palette or lower than - 8 bit depth, set all filters to zero. Otherwise use the filter_strategy. Note that to - completely follow the official PNG heuristic, filter_palette_zero must be true and - filter_strategy must be LFS_MINSUM*/ - unsigned filter_palette_zero; - /*Which filter strategy to use when not using zeroes due to filter_palette_zero. - Set filter_palette_zero to 0 to ensure always using your chosen strategy. Default: LFS_MINSUM*/ - LodePNGFilterStrategy filter_strategy; - /*used if filter_strategy is LFS_PREDEFINED. In that case, this must point to a buffer with - the same length as the amount of scanlines in the image, and each value must <= 5. You - have to cleanup this buffer, LodePNG will never free it. Don't forget that filter_palette_zero - must be set to 0 to ensure this is also used on palette or low bitdepth images.*/ - const unsigned char* predefined_filters; - - /*force creating a PLTE chunk if colortype is 2 or 6 (= a suggested palette). - If colortype is 3, PLTE is _always_ created.*/ - unsigned force_palette; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*add LodePNG identifier and version as a text chunk, for debugging*/ - unsigned add_id; - /*encode text chunks as zTXt chunks instead of tEXt chunks, and use compression in iTXt chunks*/ - unsigned text_compression; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} LodePNGEncoderSettings; - -void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings); -#endif /*LODEPNG_COMPILE_ENCODER*/ - - -#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) -/*The settings, state and information for extended encoding and decoding.*/ -typedef struct LodePNGState -{ -#ifdef LODEPNG_COMPILE_DECODER - LodePNGDecoderSettings decoder; /*the decoding settings*/ -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER - LodePNGEncoderSettings encoder; /*the encoding settings*/ -#endif /*LODEPNG_COMPILE_ENCODER*/ - LodePNGColorMode info_raw; /*specifies the format in which you would like to get the raw pixel buffer*/ - LodePNGInfo info_png; /*info of the PNG image obtained after decoding*/ - unsigned error; -#ifdef LODEPNG_COMPILE_CPP - /* For the lodepng::State subclass. */ - virtual ~LodePNGState(){} -#endif -} LodePNGState; - -/*init, cleanup and copy functions to use with this struct*/ -void lodepng_state_init(LodePNGState* state); -void lodepng_state_cleanup(LodePNGState* state); -void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source); -#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */ - -#ifdef LODEPNG_COMPILE_DECODER -/* -Same as lodepng_decode_memory, but uses a LodePNGState to allow custom settings and -getting much more information about the PNG image and color mode. -*/ -unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize); - -/* -Read the PNG header, but not the actual data. This returns only the information -that is in the header chunk of the PNG, such as width, height and color type. The -information is placed in the info_png field of the LodePNGState. -*/ -unsigned lodepng_inspect(unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize); -#endif /*LODEPNG_COMPILE_DECODER*/ - - -#ifdef LODEPNG_COMPILE_ENCODER -/*This function allocates the out buffer with standard malloc and stores the size in *outsize.*/ -unsigned lodepng_encode(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGState* state); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/* -The lodepng_chunk functions are normally not needed, except to traverse the -unknown chunks stored in the LodePNGInfo struct, or add new ones to it. -It also allows traversing the chunks of an encoded PNG file yourself. - -PNG standard chunk naming conventions: -First byte: uppercase = critical, lowercase = ancillary -Second byte: uppercase = public, lowercase = private -Third byte: must be uppercase -Fourth byte: uppercase = unsafe to copy, lowercase = safe to copy -*/ - -/* -Gets the length of the data of the chunk. Total chunk length has 12 bytes more. -There must be at least 4 bytes to read from. If the result value is too large, -it may be corrupt data. -*/ -unsigned lodepng_chunk_length(const unsigned char* chunk); - -/*puts the 4-byte type in null terminated string*/ -void lodepng_chunk_type(char type[5], const unsigned char* chunk); - -/*check if the type is the given type*/ -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type); - -/*0: it's one of the critical chunk types, 1: it's an ancillary chunk (see PNG standard)*/ -unsigned char lodepng_chunk_ancillary(const unsigned char* chunk); - -/*0: public, 1: private (see PNG standard)*/ -unsigned char lodepng_chunk_private(const unsigned char* chunk); - -/*0: the chunk is unsafe to copy, 1: the chunk is safe to copy (see PNG standard)*/ -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk); - -/*get pointer to the data of the chunk, where the input points to the header of the chunk*/ -unsigned char* lodepng_chunk_data(unsigned char* chunk); -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk); - -/*returns 0 if the crc is correct, 1 if it's incorrect (0 for OK as usual!)*/ -unsigned lodepng_chunk_check_crc(const unsigned char* chunk); - -/*generates the correct CRC from the data and puts it in the last 4 bytes of the chunk*/ -void lodepng_chunk_generate_crc(unsigned char* chunk); - -/*iterate to next chunks. don't use on IEND chunk, as there is no next chunk then*/ -unsigned char* lodepng_chunk_next(unsigned char* chunk); -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk); - -/* -Appends chunk to the data in out. The given chunk should already have its chunk header. -The out variable and outlength are updated to reflect the new reallocated buffer. -Returns error code (0 if it went ok) -*/ -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk); - -/* -Appends new chunk to out. The chunk to append is given by giving its length, type -and data separately. The type is a 4-letter string. -The out variable and outlength are updated to reflect the new reallocated buffer. -Returne error code (0 if it went ok) -*/ -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data); - - -/*Calculate CRC32 of buffer*/ -unsigned lodepng_crc32(const unsigned char* buf, size_t len); -#endif /*LODEPNG_COMPILE_PNG*/ - - -#ifdef LODEPNG_COMPILE_ZLIB -/* -This zlib part can be used independently to zlib compress and decompress a -buffer. It cannot be used to create gzip files however, and it only supports the -part of zlib that is required for PNG, it does not support dictionaries. -*/ - -#ifdef LODEPNG_COMPILE_DECODER -/*Inflate a buffer. Inflate is the decompression step of deflate. Out buffer must be freed after use.*/ -unsigned lodepng_inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings); - -/* -Decompresses Zlib data. Reallocates the out buffer and appends the data. The -data must be according to the zlib specification. -Either, *out must be NULL and *outsize must be 0, or, *out must be a valid -buffer and *outsize its size in bytes. out must be freed by user after usage. -*/ -unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* -Compresses data with Zlib. Reallocates the out buffer and appends the data. -Zlib adds a small header and trailer around the deflate data. -The data is output in the format of the zlib specification. -Either, *out must be NULL and *outsize must be 0, or, *out must be a valid -buffer and *outsize its size in bytes. out must be freed by user after usage. -*/ -unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings); - -/* -Find length-limited Huffman code for given frequencies. This function is in the -public interface only for tests, it's used internally by lodepng_deflate. -*/ -unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies, - size_t numcodes, unsigned maxbitlen); - -/*Compress a buffer with deflate. See RFC 1951. Out buffer must be freed after use.*/ -unsigned lodepng_deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings); - -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_ZLIB*/ - -#ifdef LODEPNG_COMPILE_DISK -/* -Load a file from disk into buffer. The function allocates the out buffer, and -after usage you should free it. -out: output parameter, contains pointer to loaded buffer. -outsize: output parameter, size of the allocated out buffer -filename: the path to the file to load -return value: error code (0 means ok) -*/ -unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename); - -/* -Save a file from buffer to disk. Warning, if it exists, this function overwrites -the file without warning! -buffer: the buffer to write -buffersize: size of the buffer to write -filename: the path to the file to save to -return value: error code (0 means ok) -*/ -unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename); -#endif /*LODEPNG_COMPILE_DISK*/ - -#ifdef LODEPNG_COMPILE_CPP -/* The LodePNG C++ wrapper uses std::vectors instead of manually allocated memory buffers. */ -namespace lodepng -{ -#ifdef LODEPNG_COMPILE_PNG -class State : public LodePNGState -{ - public: - State(); - State(const State& other); - virtual ~State(); - State& operator=(const State& other); -}; - -#ifdef LODEPNG_COMPILE_DECODER -/* Same as other lodepng::decode, but using a State for more settings and information. */ -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - State& state, - const unsigned char* in, size_t insize); -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - State& state, - const std::vector& in); -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER -/* Same as other lodepng::encode, but using a State for more settings and information. */ -unsigned encode(std::vector& out, - const unsigned char* in, unsigned w, unsigned h, - State& state); -unsigned encode(std::vector& out, - const std::vector& in, unsigned w, unsigned h, - State& state); -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DISK -/* -Load a file from disk into an std::vector. -return value: error code (0 means ok) -*/ -unsigned load_file(std::vector& buffer, const std::string& filename); - -/* -Save the binary data in an std::vector to a file on disk. The file is overwritten -without warning. -*/ -unsigned save_file(const std::vector& buffer, const std::string& filename); -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_PNG */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_DECODER -/* Zlib-decompress an unsigned char buffer */ -unsigned decompress(std::vector& out, const unsigned char* in, size_t insize, - const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings); - -/* Zlib-decompress an std::vector */ -unsigned decompress(std::vector& out, const std::vector& in, - const LodePNGDecompressSettings& settings = lodepng_default_decompress_settings); -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -/* Zlib-compress an unsigned char buffer */ -unsigned compress(std::vector& out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings& settings = lodepng_default_compress_settings); - -/* Zlib-compress an std::vector */ -unsigned compress(std::vector& out, const std::vector& in, - const LodePNGCompressSettings& settings = lodepng_default_compress_settings); -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_ZLIB */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ - -/* -TODO: -[.] test if there are no memory leaks or security exploits - done a lot but needs to be checked often -[.] check compatibility with various compilers - done but needs to be redone for every newer version -[X] converting color to 16-bit per channel types -[ ] read all public PNG chunk types (but never let the color profile and gamma ones touch RGB values) -[ ] make sure encoder generates no chunks with size > (2^31)-1 -[ ] partial decoding (stream processing) -[X] let the "isFullyOpaque" function check color keys and transparent palettes too -[X] better name for the variables "codes", "codesD", "codelengthcodes", "clcl" and "lldl" -[ ] don't stop decoding on errors like 69, 57, 58 (make warnings) -[ ] make warnings like: oob palette, checksum fail, data after iend, wrong/unknown crit chunk, no null terminator in text, ... -[ ] let the C++ wrapper catch exceptions coming from the standard library and return LodePNG error codes -[ ] allow user to provide custom color conversion functions, e.g. for premultiplied alpha, padding bits or not, ... -[ ] allow user to give data (void*) to custom allocator -*/ - -#endif /*LODEPNG_H inclusion guard*/ - -/* -LodePNG Documentation ---------------------- - -0. table of contents --------------------- - - 1. about - 1.1. supported features - 1.2. features not supported - 2. C and C++ version - 3. security - 4. decoding - 5. encoding - 6. color conversions - 6.1. PNG color types - 6.2. color conversions - 6.3. padding bits - 6.4. A note about 16-bits per channel and endianness - 7. error values - 8. chunks and PNG editing - 9. compiler support - 10. examples - 10.1. decoder C++ example - 10.2. decoder C example - 11. state settings reference - 12. changes - 13. contact information - - -1. about --------- - -PNG is a file format to store raster images losslessly with good compression, -supporting different color types and alpha channel. - -LodePNG is a PNG codec according to the Portable Network Graphics (PNG) -Specification (Second Edition) - W3C Recommendation 10 November 2003. - -The specifications used are: - -*) Portable Network Graphics (PNG) Specification (Second Edition): - http://www.w3.org/TR/2003/REC-PNG-20031110 -*) RFC 1950 ZLIB Compressed Data Format version 3.3: - http://www.gzip.org/zlib/rfc-zlib.html -*) RFC 1951 DEFLATE Compressed Data Format Specification ver 1.3: - http://www.gzip.org/zlib/rfc-deflate.html - -The most recent version of LodePNG can currently be found at -http://lodev.org/lodepng/ - -LodePNG works both in C (ISO C90) and C++, with a C++ wrapper that adds -extra functionality. - -LodePNG exists out of two files: --lodepng.h: the header file for both C and C++ --lodepng.c(pp): give it the name lodepng.c or lodepng.cpp (or .cc) depending on your usage - -If you want to start using LodePNG right away without reading this doc, get the -examples from the LodePNG website to see how to use it in code, or check the -smaller examples in chapter 13 here. - -LodePNG is simple but only supports the basic requirements. To achieve -simplicity, the following design choices were made: There are no dependencies -on any external library. There are functions to decode and encode a PNG with -a single function call, and extended versions of these functions taking a -LodePNGState struct allowing to specify or get more information. By default -the colors of the raw image are always RGB or RGBA, no matter what color type -the PNG file uses. To read and write files, there are simple functions to -convert the files to/from buffers in memory. - -This all makes LodePNG suitable for loading textures in games, demos and small -programs, ... It's less suitable for full fledged image editors, loading PNGs -over network (it requires all the image data to be available before decoding can -begin), life-critical systems, ... - -1.1. supported features ------------------------ - -The following features are supported by the decoder: - -*) decoding of PNGs with any color type, bit depth and interlace mode, to a 24- or 32-bit color raw image, - or the same color type as the PNG -*) encoding of PNGs, from any raw image to 24- or 32-bit color, or the same color type as the raw image -*) Adam7 interlace and deinterlace for any color type -*) loading the image from harddisk or decoding it from a buffer from other sources than harddisk -*) support for alpha channels, including RGBA color model, translucent palettes and color keying -*) zlib decompression (inflate) -*) zlib compression (deflate) -*) CRC32 and ADLER32 checksums -*) handling of unknown chunks, allowing making a PNG editor that stores custom and unknown chunks. -*) the following chunks are supported (generated/interpreted) by both encoder and decoder: - IHDR: header information - PLTE: color palette - IDAT: pixel data - IEND: the final chunk - tRNS: transparency for palettized images - tEXt: textual information - zTXt: compressed textual information - iTXt: international textual information - bKGD: suggested background color - pHYs: physical dimensions - tIME: modification time - -1.2. features not supported ---------------------------- - -The following features are _not_ supported: - -*) some features needed to make a conformant PNG-Editor might be still missing. -*) partial loading/stream processing. All data must be available and is processed in one call. -*) The following public chunks are not supported but treated as unknown chunks by LodePNG - cHRM, gAMA, iCCP, sRGB, sBIT, hIST, sPLT - Some of these are not supported on purpose: LodePNG wants to provide the RGB values - stored in the pixels, not values modified by system dependent gamma or color models. - - -2. C and C++ version --------------------- - -The C version uses buffers allocated with alloc that you need to free() -yourself. You need to use init and cleanup functions for each struct whenever -using a struct from the C version to avoid exploits and memory leaks. - -The C++ version has extra functions with std::vectors in the interface and the -lodepng::State class which is a LodePNGState with constructor and destructor. - -These files work without modification for both C and C++ compilers because all -the additional C++ code is in "#ifdef __cplusplus" blocks that make C-compilers -ignore it, and the C code is made to compile both with strict ISO C90 and C++. - -To use the C++ version, you need to rename the source file to lodepng.cpp -(instead of lodepng.c), and compile it with a C++ compiler. - -To use the C version, you need to rename the source file to lodepng.c (instead -of lodepng.cpp), and compile it with a C compiler. - - -3. Security ------------ - -Even if carefully designed, it's always possible that LodePNG contains possible -exploits. If you discover one, please let me know, and it will be fixed. - -When using LodePNG, care has to be taken with the C version of LodePNG, as well -as the C-style structs when working with C++. The following conventions are used -for all C-style structs: - --if a struct has a corresponding init function, always call the init function when making a new one --if a struct has a corresponding cleanup function, call it before the struct disappears to avoid memory leaks --if a struct has a corresponding copy function, use the copy function instead of "=". - The destination must also be inited already. - - -4. Decoding ------------ - -Decoding converts a PNG compressed image to a raw pixel buffer. - -Most documentation on using the decoder is at its declarations in the header -above. For C, simple decoding can be done with functions such as -lodepng_decode32, and more advanced decoding can be done with the struct -LodePNGState and lodepng_decode. For C++, all decoding can be done with the -various lodepng::decode functions, and lodepng::State can be used for advanced -features. - -When using the LodePNGState, it uses the following fields for decoding: -*) LodePNGInfo info_png: it stores extra information about the PNG (the input) in here -*) LodePNGColorMode info_raw: here you can say what color mode of the raw image (the output) you want to get -*) LodePNGDecoderSettings decoder: you can specify a few extra settings for the decoder to use - -LodePNGInfo info_png --------------------- - -After decoding, this contains extra information of the PNG image, except the actual -pixels, width and height because these are already gotten directly from the decoder -functions. - -It contains for example the original color type of the PNG image, text comments, -suggested background color, etc... More details about the LodePNGInfo struct are -at its declaration documentation. - -LodePNGColorMode info_raw -------------------------- - -When decoding, here you can specify which color type you want -the resulting raw image to be. If this is different from the colortype of the -PNG, then the decoder will automatically convert the result. This conversion -always works, except if you want it to convert a color PNG to greyscale or to -a palette with missing colors. - -By default, 32-bit color is used for the result. - -LodePNGDecoderSettings decoder ------------------------------- - -The settings can be used to ignore the errors created by invalid CRC and Adler32 -chunks, and to disable the decoding of tEXt chunks. - -There's also a setting color_convert, true by default. If false, no conversion -is done, the resulting data will be as it was in the PNG (after decompression) -and you'll have to puzzle the colors of the pixels together yourself using the -color type information in the LodePNGInfo. - - -5. Encoding ------------ - -Encoding converts a raw pixel buffer to a PNG compressed image. - -Most documentation on using the encoder is at its declarations in the header -above. For C, simple encoding can be done with functions such as -lodepng_encode32, and more advanced decoding can be done with the struct -LodePNGState and lodepng_encode. For C++, all encoding can be done with the -various lodepng::encode functions, and lodepng::State can be used for advanced -features. - -Like the decoder, the encoder can also give errors. However it gives less errors -since the encoder input is trusted, the decoder input (a PNG image that could -be forged by anyone) is not trusted. - -When using the LodePNGState, it uses the following fields for encoding: -*) LodePNGInfo info_png: here you specify how you want the PNG (the output) to be. -*) LodePNGColorMode info_raw: here you say what color type of the raw image (the input) has -*) LodePNGEncoderSettings encoder: you can specify a few settings for the encoder to use - -LodePNGInfo info_png --------------------- - -When encoding, you use this the opposite way as when decoding: for encoding, -you fill in the values you want the PNG to have before encoding. By default it's -not needed to specify a color type for the PNG since it's automatically chosen, -but it's possible to choose it yourself given the right settings. - -The encoder will not always exactly match the LodePNGInfo struct you give, -it tries as close as possible. Some things are ignored by the encoder. The -encoder uses, for example, the following settings from it when applicable: -colortype and bitdepth, text chunks, time chunk, the color key, the palette, the -background color, the interlace method, unknown chunks, ... - -When encoding to a PNG with colortype 3, the encoder will generate a PLTE chunk. -If the palette contains any colors for which the alpha channel is not 255 (so -there are translucent colors in the palette), it'll add a tRNS chunk. - -LodePNGColorMode info_raw -------------------------- - -You specify the color type of the raw image that you give to the input here, -including a possible transparent color key and palette you happen to be using in -your raw image data. - -By default, 32-bit color is assumed, meaning your input has to be in RGBA -format with 4 bytes (unsigned chars) per pixel. - -LodePNGEncoderSettings encoder ------------------------------- - -The following settings are supported (some are in sub-structs): -*) auto_convert: when this option is enabled, the encoder will -automatically choose the smallest possible color mode (including color key) that -can encode the colors of all pixels without information loss. -*) btype: the block type for LZ77. 0 = uncompressed, 1 = fixed huffman tree, - 2 = dynamic huffman tree (best compression). Should be 2 for proper - compression. -*) use_lz77: whether or not to use LZ77 for compressed block types. Should be - true for proper compression. -*) windowsize: the window size used by the LZ77 encoder (1 - 32768). Has value - 2048 by default, but can be set to 32768 for better, but slow, compression. -*) force_palette: if colortype is 2 or 6, you can make the encoder write a PLTE - chunk if force_palette is true. This can used as suggested palette to convert - to by viewers that don't support more than 256 colors (if those still exist) -*) add_id: add text chunk "Encoder: LodePNG " to the image. -*) text_compression: default 1. If 1, it'll store texts as zTXt instead of tEXt chunks. - zTXt chunks use zlib compression on the text. This gives a smaller result on - large texts but a larger result on small texts (such as a single program name). - It's all tEXt or all zTXt though, there's no separate setting per text yet. - - -6. color conversions --------------------- - -An important thing to note about LodePNG, is that the color type of the PNG, and -the color type of the raw image, are completely independent. By default, when -you decode a PNG, you get the result as a raw image in the color type you want, -no matter whether the PNG was encoded with a palette, greyscale or RGBA color. -And if you encode an image, by default LodePNG will automatically choose the PNG -color type that gives good compression based on the values of colors and amount -of colors in the image. It can be configured to let you control it instead as -well, though. - -To be able to do this, LodePNG does conversions from one color mode to another. -It can convert from almost any color type to any other color type, except the -following conversions: RGB to greyscale is not supported, and converting to a -palette when the palette doesn't have a required color is not supported. This is -not supported on purpose: this is information loss which requires a color -reduction algorithm that is beyong the scope of a PNG encoder (yes, RGB to grey -is easy, but there are multiple ways if you want to give some channels more -weight). - -By default, when decoding, you get the raw image in 32-bit RGBA or 24-bit RGB -color, no matter what color type the PNG has. And by default when encoding, -LodePNG automatically picks the best color model for the output PNG, and expects -the input image to be 32-bit RGBA or 24-bit RGB. So, unless you want to control -the color format of the images yourself, you can skip this chapter. - -6.1. PNG color types --------------------- - -A PNG image can have many color types, ranging from 1-bit color to 64-bit color, -as well as palettized color modes. After the zlib decompression and unfiltering -in the PNG image is done, the raw pixel data will have that color type and thus -a certain amount of bits per pixel. If you want the output raw image after -decoding to have another color type, a conversion is done by LodePNG. - -The PNG specification gives the following color types: - -0: greyscale, bit depths 1, 2, 4, 8, 16 -2: RGB, bit depths 8 and 16 -3: palette, bit depths 1, 2, 4 and 8 -4: greyscale with alpha, bit depths 8 and 16 -6: RGBA, bit depths 8 and 16 - -Bit depth is the amount of bits per pixel per color channel. So the total amount -of bits per pixel is: amount of channels * bitdepth. - -6.2. color conversions ----------------------- - -As explained in the sections about the encoder and decoder, you can specify -color types and bit depths in info_png and info_raw to change the default -behaviour. - -If, when decoding, you want the raw image to be something else than the default, -you need to set the color type and bit depth you want in the LodePNGColorMode, -or the parameters colortype and bitdepth of the simple decoding function. - -If, when encoding, you use another color type than the default in the raw input -image, you need to specify its color type and bit depth in the LodePNGColorMode -of the raw image, or use the parameters colortype and bitdepth of the simple -encoding function. - -If, when encoding, you don't want LodePNG to choose the output PNG color type -but control it yourself, you need to set auto_convert in the encoder settings -to false, and specify the color type you want in the LodePNGInfo of the -encoder (including palette: it can generate a palette if auto_convert is true, -otherwise not). - -If the input and output color type differ (whether user chosen or auto chosen), -LodePNG will do a color conversion, which follows the rules below, and may -sometimes result in an error. - -To avoid some confusion: --the decoder converts from PNG to raw image --the encoder converts from raw image to PNG --the colortype and bitdepth in LodePNGColorMode info_raw, are those of the raw image --the colortype and bitdepth in the color field of LodePNGInfo info_png, are those of the PNG --when encoding, the color type in LodePNGInfo is ignored if auto_convert - is enabled, it is automatically generated instead --when decoding, the color type in LodePNGInfo is set by the decoder to that of the original - PNG image, but it can be ignored since the raw image has the color type you requested instead --if the color type of the LodePNGColorMode and PNG image aren't the same, a conversion - between the color types is done if the color types are supported. If it is not - supported, an error is returned. If the types are the same, no conversion is done. --even though some conversions aren't supported, LodePNG supports loading PNGs from any - colortype and saving PNGs to any colortype, sometimes it just requires preparing - the raw image correctly before encoding. --both encoder and decoder use the same color converter. - -Non supported color conversions: --color to greyscale: no error is thrown, but the result will look ugly because -only the red channel is taken --anything to palette when that palette does not have that color in it: in this -case an error is thrown - -Supported color conversions: --anything to 8-bit RGB, 8-bit RGBA, 16-bit RGB, 16-bit RGBA --any grey or grey+alpha, to grey or grey+alpha --anything to a palette, as long as the palette has the requested colors in it --removing alpha channel --higher to smaller bitdepth, and vice versa - -If you want no color conversion to be done (e.g. for speed or control): --In the encoder, you can make it save a PNG with any color type by giving the -raw color mode and LodePNGInfo the same color mode, and setting auto_convert to -false. --In the decoder, you can make it store the pixel data in the same color type -as the PNG has, by setting the color_convert setting to false. Settings in -info_raw are then ignored. - -The function lodepng_convert does the color conversion. It is available in the -interface but normally isn't needed since the encoder and decoder already call -it. - -6.3. padding bits ------------------ - -In the PNG file format, if a less than 8-bit per pixel color type is used and the scanlines -have a bit amount that isn't a multiple of 8, then padding bits are used so that each -scanline starts at a fresh byte. But that is NOT true for the LodePNG raw input and output. -The raw input image you give to the encoder, and the raw output image you get from the decoder -will NOT have these padding bits, e.g. in the case of a 1-bit image with a width -of 7 pixels, the first pixel of the second scanline will the the 8th bit of the first byte, -not the first bit of a new byte. - -6.4. A note about 16-bits per channel and endianness ----------------------------------------------------- - -LodePNG uses unsigned char arrays for 16-bit per channel colors too, just like -for any other color format. The 16-bit values are stored in big endian (most -significant byte first) in these arrays. This is the opposite order of the -little endian used by x86 CPU's. - -LodePNG always uses big endian because the PNG file format does so internally. -Conversions to other formats than PNG uses internally are not supported by -LodePNG on purpose, there are myriads of formats, including endianness of 16-bit -colors, the order in which you store R, G, B and A, and so on. Supporting and -converting to/from all that is outside the scope of LodePNG. - -This may mean that, depending on your use case, you may want to convert the big -endian output of LodePNG to little endian with a for loop. This is certainly not -always needed, many applications and libraries support big endian 16-bit colors -anyway, but it means you cannot simply cast the unsigned char* buffer to an -unsigned short* buffer on x86 CPUs. - - -7. error values ---------------- - -All functions in LodePNG that return an error code, return 0 if everything went -OK, or a non-zero code if there was an error. - -The meaning of the LodePNG error values can be retrieved with the function -lodepng_error_text: given the numerical error code, it returns a description -of the error in English as a string. - -Check the implementation of lodepng_error_text to see the meaning of each code. - - -8. chunks and PNG editing -------------------------- - -If you want to add extra chunks to a PNG you encode, or use LodePNG for a PNG -editor that should follow the rules about handling of unknown chunks, or if your -program is able to read other types of chunks than the ones handled by LodePNG, -then that's possible with the chunk functions of LodePNG. - -A PNG chunk has the following layout: - -4 bytes length -4 bytes type name -length bytes data -4 bytes CRC - -8.1. iterating through chunks ------------------------------ - -If you have a buffer containing the PNG image data, then the first chunk (the -IHDR chunk) starts at byte number 8 of that buffer. The first 8 bytes are the -signature of the PNG and are not part of a chunk. But if you start at byte 8 -then you have a chunk, and can check the following things of it. - -NOTE: none of these functions check for memory buffer boundaries. To avoid -exploits, always make sure the buffer contains all the data of the chunks. -When using lodepng_chunk_next, make sure the returned value is within the -allocated memory. - -unsigned lodepng_chunk_length(const unsigned char* chunk): - -Get the length of the chunk's data. The total chunk length is this length + 12. - -void lodepng_chunk_type(char type[5], const unsigned char* chunk): -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type): - -Get the type of the chunk or compare if it's a certain type - -unsigned char lodepng_chunk_critical(const unsigned char* chunk): -unsigned char lodepng_chunk_private(const unsigned char* chunk): -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk): - -Check if the chunk is critical in the PNG standard (only IHDR, PLTE, IDAT and IEND are). -Check if the chunk is private (public chunks are part of the standard, private ones not). -Check if the chunk is safe to copy. If it's not, then, when modifying data in a critical -chunk, unsafe to copy chunks of the old image may NOT be saved in the new one if your -program doesn't handle that type of unknown chunk. - -unsigned char* lodepng_chunk_data(unsigned char* chunk): -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk): - -Get a pointer to the start of the data of the chunk. - -unsigned lodepng_chunk_check_crc(const unsigned char* chunk): -void lodepng_chunk_generate_crc(unsigned char* chunk): - -Check if the crc is correct or generate a correct one. - -unsigned char* lodepng_chunk_next(unsigned char* chunk): -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk): - -Iterate to the next chunk. This works if you have a buffer with consecutive chunks. Note that these -functions do no boundary checking of the allocated data whatsoever, so make sure there is enough -data available in the buffer to be able to go to the next chunk. - -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk): -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data): - -These functions are used to create new chunks that are appended to the data in *out that has -length *outlength. The append function appends an existing chunk to the new data. The create -function creates a new chunk with the given parameters and appends it. Type is the 4-letter -name of the chunk. - -8.2. chunks in info_png ------------------------ - -The LodePNGInfo struct contains fields with the unknown chunk in it. It has 3 -buffers (each with size) to contain 3 types of unknown chunks: -the ones that come before the PLTE chunk, the ones that come between the PLTE -and the IDAT chunks, and the ones that come after the IDAT chunks. -It's necessary to make the distionction between these 3 cases because the PNG -standard forces to keep the ordering of unknown chunks compared to the critical -chunks, but does not force any other ordering rules. - -info_png.unknown_chunks_data[0] is the chunks before PLTE -info_png.unknown_chunks_data[1] is the chunks after PLTE, before IDAT -info_png.unknown_chunks_data[2] is the chunks after IDAT - -The chunks in these 3 buffers can be iterated through and read by using the same -way described in the previous subchapter. - -When using the decoder to decode a PNG, you can make it store all unknown chunks -if you set the option settings.remember_unknown_chunks to 1. By default, this -option is off (0). - -The encoder will always encode unknown chunks that are stored in the info_png. -If you need it to add a particular chunk that isn't known by LodePNG, you can -use lodepng_chunk_append or lodepng_chunk_create to the chunk data in -info_png.unknown_chunks_data[x]. - -Chunks that are known by LodePNG should not be added in that way. E.g. to make -LodePNG add a bKGD chunk, set background_defined to true and add the correct -parameters there instead. - - -9. compiler support -------------------- - -No libraries other than the current standard C library are needed to compile -LodePNG. For the C++ version, only the standard C++ library is needed on top. -Add the files lodepng.c(pp) and lodepng.h to your project, include -lodepng.h where needed, and your program can read/write PNG files. - -It is compatible with C90 and up, and C++03 and up. - -If performance is important, use optimization when compiling! For both the -encoder and decoder, this makes a large difference. - -Make sure that LodePNG is compiled with the same compiler of the same version -and with the same settings as the rest of the program, or the interfaces with -std::vectors and std::strings in C++ can be incompatible. - -CHAR_BITS must be 8 or higher, because LodePNG uses unsigned chars for octets. - -*) gcc and g++ - -LodePNG is developed in gcc so this compiler is natively supported. It gives no -warnings with compiler options "-Wall -Wextra -pedantic -ansi", with gcc and g++ -version 4.7.1 on Linux, 32-bit and 64-bit. - -*) Clang - -Fully supported and warning-free. - -*) Mingw - -The Mingw compiler (a port of gcc for Windows) should be fully supported by -LodePNG. - -*) Visual Studio and Visual C++ Express Edition - -LodePNG should be warning-free with warning level W4. Two warnings were disabled -with pragmas though: warning 4244 about implicit conversions, and warning 4996 -where it wants to use a non-standard function fopen_s instead of the standard C -fopen. - -Visual Studio may want "stdafx.h" files to be included in each source file and -give an error "unexpected end of file while looking for precompiled header". -This is not standard C++ and will not be added to the stock LodePNG. You can -disable it for lodepng.cpp only by right clicking it, Properties, C/C++, -Precompiled Headers, and set it to Not Using Precompiled Headers there. - -NOTE: Modern versions of VS should be fully supported, but old versions, e.g. -VS6, are not guaranteed to work. - -*) Compilers on Macintosh - -LodePNG has been reported to work both with gcc and LLVM for Macintosh, both for -C and C++. - -*) Other Compilers - -If you encounter problems on any compilers, feel free to let me know and I may -try to fix it if the compiler is modern and standards complient. - - -10. examples ------------- - -This decoder example shows the most basic usage of LodePNG. More complex -examples can be found on the LodePNG website. - -10.1. decoder C++ example -------------------------- - -#include "lodepng.h" -#include - -int main(int argc, char *argv[]) -{ - const char* filename = argc > 1 ? argv[1] : "test.png"; - - //load and decode - std::vector image; - unsigned width, height; - unsigned error = lodepng::decode(image, width, height, filename); - - //if there's an error, display it - if(error) std::cout << "decoder error " << error << ": " << lodepng_error_text(error) << std::endl; - - //the pixels are now in the vector "image", 4 bytes per pixel, ordered RGBARGBA..., use it as texture, draw it, ... -} - -10.2. decoder C example ------------------------ - -#include "lodepng.h" - -int main(int argc, char *argv[]) -{ - unsigned error; - unsigned char* image; - size_t width, height; - const char* filename = argc > 1 ? argv[1] : "test.png"; - - error = lodepng_decode32_file(&image, &width, &height, filename); - - if(error) printf("decoder error %u: %s\n", error, lodepng_error_text(error)); - - / * use image here * / - - free(image); - return 0; -} - -11. state settings reference ----------------------------- - -A quick reference of some settings to set on the LodePNGState - -For decoding: - -state.decoder.zlibsettings.ignore_adler32: ignore ADLER32 checksums -state.decoder.zlibsettings.custom_...: use custom inflate function -state.decoder.ignore_crc: ignore CRC checksums -state.decoder.color_convert: convert internal PNG color to chosen one -state.decoder.read_text_chunks: whether to read in text metadata chunks -state.decoder.remember_unknown_chunks: whether to read in unknown chunks -state.info_raw.colortype: desired color type for decoded image -state.info_raw.bitdepth: desired bit depth for decoded image -state.info_raw....: more color settings, see struct LodePNGColorMode -state.info_png....: no settings for decoder but ouput, see struct LodePNGInfo - -For encoding: - -state.encoder.zlibsettings.btype: disable compression by setting it to 0 -state.encoder.zlibsettings.use_lz77: use LZ77 in compression -state.encoder.zlibsettings.windowsize: tweak LZ77 windowsize -state.encoder.zlibsettings.minmatch: tweak min LZ77 length to match -state.encoder.zlibsettings.nicematch: tweak LZ77 match where to stop searching -state.encoder.zlibsettings.lazymatching: try one more LZ77 matching -state.encoder.zlibsettings.custom_...: use custom deflate function -state.encoder.auto_convert: choose optimal PNG color type, if 0 uses info_png -state.encoder.filter_palette_zero: PNG filter strategy for palette -state.encoder.filter_strategy: PNG filter strategy to encode with -state.encoder.force_palette: add palette even if not encoding to one -state.encoder.add_id: add LodePNG identifier and version as a text chunk -state.encoder.text_compression: use compressed text chunks for metadata -state.info_raw.colortype: color type of raw input image you provide -state.info_raw.bitdepth: bit depth of raw input image you provide -state.info_raw: more color settings, see struct LodePNGColorMode -state.info_png.color.colortype: desired color type if auto_convert is false -state.info_png.color.bitdepth: desired bit depth if auto_convert is false -state.info_png.color....: more color settings, see struct LodePNGColorMode -state.info_png....: more PNG related settings, see struct LodePNGInfo - - -12. changes ------------ - -The version number of LodePNG is the date of the change given in the format -yyyymmdd. - -Some changes aren't backwards compatible. Those are indicated with a (!) -symbol. - -*) 27 nov 2016: grey+alpha auto color model detection bugfix -*) 18 apr 2016: Changed qsort to custom stable sort (for platforms w/o qsort). -*) 09 apr 2016: Fixed colorkey usage detection, and better file loading (within - the limits of pure C90). -*) 08 dec 2015: Made load_file function return error if file can't be opened. -*) 24 okt 2015: Bugfix with decoding to palette output. -*) 18 apr 2015: Boundary PM instead of just package-merge for faster encoding. -*) 23 aug 2014: Reduced needless memory usage of decoder. -*) 28 jun 2014: Removed fix_png setting, always support palette OOB for - simplicity. Made ColorProfile public. -*) 09 jun 2014: Faster encoder by fixing hash bug and more zeros optimization. -*) 22 dec 2013: Power of two windowsize required for optimization. -*) 15 apr 2013: Fixed bug with LAC_ALPHA and color key. -*) 25 mar 2013: Added an optional feature to ignore some PNG errors (fix_png). -*) 11 mar 2013 (!): Bugfix with custom free. Changed from "my" to "lodepng_" - prefix for the custom allocators and made it possible with a new #define to - use custom ones in your project without needing to change lodepng's code. -*) 28 jan 2013: Bugfix with color key. -*) 27 okt 2012: Tweaks in text chunk keyword length error handling. -*) 8 okt 2012 (!): Added new filter strategy (entropy) and new auto color mode. - (no palette). Better deflate tree encoding. New compression tweak settings. - Faster color conversions while decoding. Some internal cleanups. -*) 23 sep 2012: Reduced warnings in Visual Studio a little bit. -*) 1 sep 2012 (!): Removed #define's for giving custom (de)compression functions - and made it work with function pointers instead. -*) 23 jun 2012: Added more filter strategies. Made it easier to use custom alloc - and free functions and toggle #defines from compiler flags. Small fixes. -*) 6 may 2012 (!): Made plugging in custom zlib/deflate functions more flexible. -*) 22 apr 2012 (!): Made interface more consistent, renaming a lot. Removed - redundant C++ codec classes. Reduced amount of structs. Everything changed, - but it is cleaner now imho and functionality remains the same. Also fixed - several bugs and shrunk the implementation code. Made new samples. -*) 6 nov 2011 (!): By default, the encoder now automatically chooses the best - PNG color model and bit depth, based on the amount and type of colors of the - raw image. For this, autoLeaveOutAlphaChannel replaced by auto_choose_color. -*) 9 okt 2011: simpler hash chain implementation for the encoder. -*) 8 sep 2011: lz77 encoder lazy matching instead of greedy matching. -*) 23 aug 2011: tweaked the zlib compression parameters after benchmarking. - A bug with the PNG filtertype heuristic was fixed, so that it chooses much - better ones (it's quite significant). A setting to do an experimental, slow, - brute force search for PNG filter types is added. -*) 17 aug 2011 (!): changed some C zlib related function names. -*) 16 aug 2011: made the code less wide (max 120 characters per line). -*) 17 apr 2011: code cleanup. Bugfixes. Convert low to 16-bit per sample colors. -*) 21 feb 2011: fixed compiling for C90. Fixed compiling with sections disabled. -*) 11 dec 2010: encoding is made faster, based on suggestion by Peter Eastman - to optimize long sequences of zeros. -*) 13 nov 2010: added LodePNG_InfoColor_hasPaletteAlpha and - LodePNG_InfoColor_canHaveAlpha functions for convenience. -*) 7 nov 2010: added LodePNG_error_text function to get error code description. -*) 30 okt 2010: made decoding slightly faster -*) 26 okt 2010: (!) changed some C function and struct names (more consistent). - Reorganized the documentation and the declaration order in the header. -*) 08 aug 2010: only changed some comments and external samples. -*) 05 jul 2010: fixed bug thanks to warnings in the new gcc version. -*) 14 mar 2010: fixed bug where too much memory was allocated for char buffers. -*) 02 sep 2008: fixed bug where it could create empty tree that linux apps could - read by ignoring the problem but windows apps couldn't. -*) 06 jun 2008: added more error checks for out of memory cases. -*) 26 apr 2008: added a few more checks here and there to ensure more safety. -*) 06 mar 2008: crash with encoding of strings fixed -*) 02 feb 2008: support for international text chunks added (iTXt) -*) 23 jan 2008: small cleanups, and #defines to divide code in sections -*) 20 jan 2008: support for unknown chunks allowing using LodePNG for an editor. -*) 18 jan 2008: support for tIME and pHYs chunks added to encoder and decoder. -*) 17 jan 2008: ability to encode and decode compressed zTXt chunks added - Also various fixes, such as in the deflate and the padding bits code. -*) 13 jan 2008: Added ability to encode Adam7-interlaced images. Improved - filtering code of encoder. -*) 07 jan 2008: (!) changed LodePNG to use ISO C90 instead of C++. A - C++ wrapper around this provides an interface almost identical to before. - Having LodePNG be pure ISO C90 makes it more portable. The C and C++ code - are together in these files but it works both for C and C++ compilers. -*) 29 dec 2007: (!) changed most integer types to unsigned int + other tweaks -*) 30 aug 2007: bug fixed which makes this Borland C++ compatible -*) 09 aug 2007: some VS2005 warnings removed again -*) 21 jul 2007: deflate code placed in new namespace separate from zlib code -*) 08 jun 2007: fixed bug with 2- and 4-bit color, and small interlaced images -*) 04 jun 2007: improved support for Visual Studio 2005: crash with accessing - invalid std::vector element [0] fixed, and level 3 and 4 warnings removed -*) 02 jun 2007: made the encoder add a tag with version by default -*) 27 may 2007: zlib and png code separated (but still in the same file), - simple encoder/decoder functions added for more simple usage cases -*) 19 may 2007: minor fixes, some code cleaning, new error added (error 69), - moved some examples from here to lodepng_examples.cpp -*) 12 may 2007: palette decoding bug fixed -*) 24 apr 2007: changed the license from BSD to the zlib license -*) 11 mar 2007: very simple addition: ability to encode bKGD chunks. -*) 04 mar 2007: (!) tEXt chunk related fixes, and support for encoding - palettized PNG images. Plus little interface change with palette and texts. -*) 03 mar 2007: Made it encode dynamic Huffman shorter with repeat codes. - Fixed a bug where the end code of a block had length 0 in the Huffman tree. -*) 26 feb 2007: Huffman compression with dynamic trees (BTYPE 2) now implemented - and supported by the encoder, resulting in smaller PNGs at the output. -*) 27 jan 2007: Made the Adler-32 test faster so that a timewaste is gone. -*) 24 jan 2007: gave encoder an error interface. Added color conversion from any - greyscale type to 8-bit greyscale with or without alpha. -*) 21 jan 2007: (!) Totally changed the interface. It allows more color types - to convert to and is more uniform. See the manual for how it works now. -*) 07 jan 2007: Some cleanup & fixes, and a few changes over the last days: - encode/decode custom tEXt chunks, separate classes for zlib & deflate, and - at last made the decoder give errors for incorrect Adler32 or Crc. -*) 01 jan 2007: Fixed bug with encoding PNGs with less than 8 bits per channel. -*) 29 dec 2006: Added support for encoding images without alpha channel, and - cleaned out code as well as making certain parts faster. -*) 28 dec 2006: Added "Settings" to the encoder. -*) 26 dec 2006: The encoder now does LZ77 encoding and produces much smaller files now. - Removed some code duplication in the decoder. Fixed little bug in an example. -*) 09 dec 2006: (!) Placed output parameters of public functions as first parameter. - Fixed a bug of the decoder with 16-bit per color. -*) 15 okt 2006: Changed documentation structure -*) 09 okt 2006: Encoder class added. It encodes a valid PNG image from the - given image buffer, however for now it's not compressed. -*) 08 sep 2006: (!) Changed to interface with a Decoder class -*) 30 jul 2006: (!) LodePNG_InfoPng , width and height are now retrieved in different - way. Renamed decodePNG to decodePNGGeneric. -*) 29 jul 2006: (!) Changed the interface: image info is now returned as a - struct of type LodePNG::LodePNG_Info, instead of a vector, which was a bit clumsy. -*) 28 jul 2006: Cleaned the code and added new error checks. - Corrected terminology "deflate" into "inflate". -*) 23 jun 2006: Added SDL example in the documentation in the header, this - example allows easy debugging by displaying the PNG and its transparency. -*) 22 jun 2006: (!) Changed way to obtain error value. Added - loadFile function for convenience. Made decodePNG32 faster. -*) 21 jun 2006: (!) Changed type of info vector to unsigned. - Changed position of palette in info vector. Fixed an important bug that - happened on PNGs with an uncompressed block. -*) 16 jun 2006: Internally changed unsigned into unsigned where - needed, and performed some optimizations. -*) 07 jun 2006: (!) Renamed functions to decodePNG and placed them - in LodePNG namespace. Changed the order of the parameters. Rewrote the - documentation in the header. Renamed files to lodepng.cpp and lodepng.h -*) 22 apr 2006: Optimized and improved some code -*) 07 sep 2005: (!) Changed to std::vector interface -*) 12 aug 2005: Initial release (C++, decoder only) - - -13. contact information ------------------------ - -Feel free to contact me with suggestions, problems, comments, ... concerning -LodePNG. If you encounter a PNG image that doesn't work properly with this -decoder, feel free to send it and I'll use it to find and fix the problem. - -My email address is (puzzle the account and domain together with an @ symbol): -Domain: gmail dot com. -Account: lode dot vandevenne. - - -Copyright (c) 2005-2016 Lode Vandevenne -*/ diff --git a/screenshot/src/lodepng.c b/screenshot/src/lodepng.c deleted file mode 100755 index bf237df..0000000 --- a/screenshot/src/lodepng.c +++ /dev/null @@ -1,6230 +0,0 @@ -/* -LodePNG version 20161127 - -Copyright (c) 2005-2016 Lode Vandevenne - -This software is provided 'as-is', without any express or implied -warranty. In no event will the authors be held liable for any damages -arising from the use of this software. - -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it -freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - - 3. This notice may not be removed or altered from any source - distribution. -*/ - -/* -The manual and changelog are in the header file "lodepng.h" -Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for C. -*/ - -#include "lodepng.h" - -#include -#include -#include - -#if defined(_MSC_VER) && (_MSC_VER >= 1310) /*Visual Studio: A few warning types are not desired here.*/ -#pragma warning( disable : 4244 ) /*implicit conversions: not warned by gcc -Wall -Wextra and requires too much casts*/ -#pragma warning( disable : 4996 ) /*VS does not like fopen, but fopen_s is not standard C so unusable here*/ -#endif /*_MSC_VER */ - -const char* LODEPNG_VERSION_STRING = "20161127"; - -/* -This source file is built up in the following large parts. The code sections -with the "LODEPNG_COMPILE_" #defines divide this up further in an intermixed way. --Tools for C and common code for PNG and Zlib --C Code for Zlib (huffman, deflate, ...) --C Code for PNG (file format chunks, adam7, PNG filters, color conversions, ...) --The C++ wrapper around all of the above -*/ - -/*The malloc, realloc and free functions defined here with "lodepng_" in front -of the name, so that you can easily change them to others related to your -platform if needed. Everything else in the code calls these. Pass --DLODEPNG_NO_COMPILE_ALLOCATORS to the compiler, or comment out -#define LODEPNG_COMPILE_ALLOCATORS in the header, to disable the ones here and -define them in your own project's source files without needing to change -lodepng source code. Don't forget to remove "static" if you copypaste them -from here.*/ - -#ifdef LODEPNG_COMPILE_ALLOCATORS -static void* lodepng_malloc(size_t size) -{ - return malloc(size); -} - -static void* lodepng_realloc(void* ptr, size_t new_size) -{ - return realloc(ptr, new_size); -} - -static void lodepng_free(void* ptr) -{ - free(ptr); -} -#else /*LODEPNG_COMPILE_ALLOCATORS*/ -void* lodepng_malloc(size_t size); -void* lodepng_realloc(void* ptr, size_t new_size); -void lodepng_free(void* ptr); -#endif /*LODEPNG_COMPILE_ALLOCATORS*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // Tools for C, and common code for PNG and Zlib. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/* -Often in case of an error a value is assigned to a variable and then it breaks -out of a loop (to go to the cleanup phase of a function). This macro does that. -It makes the error handling code shorter and more readable. - -Example: if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83); -*/ -#define CERROR_BREAK(errorvar, code)\ -{\ - errorvar = code;\ - break;\ -} - -/*version of CERROR_BREAK that assumes the common case where the error variable is named "error"*/ -#define ERROR_BREAK(code) CERROR_BREAK(error, code) - -/*Set error var to the error code, and return it.*/ -#define CERROR_RETURN_ERROR(errorvar, code)\ -{\ - errorvar = code;\ - return code;\ -} - -/*Try the code, if it returns error, also return the error.*/ -#define CERROR_TRY_RETURN(call)\ -{\ - unsigned error = call;\ - if(error) return error;\ -} - -/*Set error var to the error code, and return from the void function.*/ -#define CERROR_RETURN(errorvar, code)\ -{\ - errorvar = code;\ - return;\ -} - -/* -About uivector, ucvector and string: --All of them wrap dynamic arrays or text strings in a similar way. --LodePNG was originally written in C++. The vectors replace the std::vectors that were used in the C++ version. --The string tools are made to avoid problems with compilers that declare things like strncat as deprecated. --They're not used in the interface, only internally in this file as static functions. --As with many other structs in this file, the init and cleanup functions serve as ctor and dtor. -*/ - -#ifdef LODEPNG_COMPILE_ZLIB -/*dynamic vector of unsigned ints*/ -typedef struct uivector -{ - unsigned* data; - size_t size; /*size in number of unsigned longs*/ - size_t allocsize; /*allocated size in bytes*/ -} uivector; - -static void uivector_cleanup(void* p) -{ - ((uivector*)p)->size = ((uivector*)p)->allocsize = 0; - lodepng_free(((uivector*)p)->data); - ((uivector*)p)->data = NULL; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_reserve(uivector* p, size_t allocsize) -{ - if(allocsize > p->allocsize) - { - size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2); - void* data = lodepng_realloc(p->data, newsize); - if(data) - { - p->allocsize = newsize; - p->data = (unsigned*)data; - } - else return 0; /*error: not enough memory*/ - } - return 1; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_resize(uivector* p, size_t size) -{ - if(!uivector_reserve(p, size * sizeof(unsigned))) return 0; - p->size = size; - return 1; /*success*/ -} - -/*resize and give all new elements the value*/ -static unsigned uivector_resizev(uivector* p, size_t size, unsigned value) -{ - size_t oldsize = p->size, i; - if(!uivector_resize(p, size)) return 0; - for(i = oldsize; i < size; ++i) p->data[i] = value; - return 1; -} - -static void uivector_init(uivector* p) -{ - p->data = NULL; - p->size = p->allocsize = 0; -} - -#ifdef LODEPNG_COMPILE_ENCODER -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned uivector_push_back(uivector* p, unsigned c) -{ - if(!uivector_resize(p, p->size + 1)) return 0; - p->data[p->size - 1] = c; - return 1; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_ZLIB*/ - -/* /////////////////////////////////////////////////////////////////////////// */ - -/*dynamic vector of unsigned chars*/ -typedef struct ucvector -{ - unsigned char* data; - size_t size; /*used size*/ - size_t allocsize; /*allocated size*/ -} ucvector; - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_reserve(ucvector* p, size_t allocsize) -{ - if(allocsize > p->allocsize) - { - size_t newsize = (allocsize > p->allocsize * 2) ? allocsize : (allocsize * 3 / 2); - void* data = lodepng_realloc(p->data, newsize); - if(data) - { - p->allocsize = newsize; - p->data = (unsigned char*)data; - } - else return 0; /*error: not enough memory*/ - } - return 1; -} - -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_resize(ucvector* p, size_t size) -{ - if(!ucvector_reserve(p, size * sizeof(unsigned char))) return 0; - p->size = size; - return 1; /*success*/ -} - -#ifdef LODEPNG_COMPILE_PNG - -static void ucvector_cleanup(void* p) -{ - ((ucvector*)p)->size = ((ucvector*)p)->allocsize = 0; - lodepng_free(((ucvector*)p)->data); - ((ucvector*)p)->data = NULL; -} - -static void ucvector_init(ucvector* p) -{ - p->data = NULL; - p->size = p->allocsize = 0; -} -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ZLIB -/*you can both convert from vector to buffer&size and vica versa. If you use -init_buffer to take over a buffer and size, it is not needed to use cleanup*/ -static void ucvector_init_buffer(ucvector* p, unsigned char* buffer, size_t size) -{ - p->data = buffer; - p->allocsize = p->size = size; -} -#endif /*LODEPNG_COMPILE_ZLIB*/ - -#if (defined(LODEPNG_COMPILE_PNG) && defined(LODEPNG_COMPILE_ANCILLARY_CHUNKS)) || defined(LODEPNG_COMPILE_ENCODER) -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned ucvector_push_back(ucvector* p, unsigned char c) -{ - if(!ucvector_resize(p, p->size + 1)) return 0; - p->data[p->size - 1] = c; - return 1; -} -#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/ - - -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_PNG -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*returns 1 if success, 0 if failure ==> nothing done*/ -static unsigned string_resize(char** out, size_t size) -{ - char* data = (char*)lodepng_realloc(*out, size + 1); - if(data) - { - data[size] = 0; /*null termination char*/ - *out = data; - } - return data != 0; -} - -/*init a {char*, size_t} pair for use as string*/ -static void string_init(char** out) -{ - *out = NULL; - string_resize(out, 0); -} - -/*free the above pair again*/ -static void string_cleanup(char** out) -{ - lodepng_free(*out); - *out = NULL; -} - -static void string_set(char** out, const char* in) -{ - size_t insize = strlen(in), i; - if(string_resize(out, insize)) - { - for(i = 0; i != insize; ++i) - { - (*out)[i] = in[i]; - } - } -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -/* ////////////////////////////////////////////////////////////////////////// */ - -unsigned lodepng_read32bitInt(const unsigned char* buffer) -{ - return (unsigned)((buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3]); -} - -#if defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER) -/*buffer must have at least 4 allocated bytes available*/ -static void lodepng_set32bitInt(unsigned char* buffer, unsigned value) -{ - buffer[0] = (unsigned char)((value >> 24) & 0xff); - buffer[1] = (unsigned char)((value >> 16) & 0xff); - buffer[2] = (unsigned char)((value >> 8) & 0xff); - buffer[3] = (unsigned char)((value ) & 0xff); -} -#endif /*defined(LODEPNG_COMPILE_PNG) || defined(LODEPNG_COMPILE_ENCODER)*/ - -#ifdef LODEPNG_COMPILE_ENCODER -static void lodepng_add32bitInt(ucvector* buffer, unsigned value) -{ - ucvector_resize(buffer, buffer->size + 4); /*todo: give error if resize failed*/ - lodepng_set32bitInt(&buffer->data[buffer->size - 4], value); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / File IO / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_DISK - -/* returns negative value on error. This should be pure C compatible, so no fstat. */ -static long lodepng_filesize(const char* filename) -{ - FILE* file; - long size; - file = fopen(filename, "rb"); - if(!file) return -1; - - if(fseek(file, 0, SEEK_END) != 0) - { - fclose(file); - return -1; - } - - size = ftell(file); - /* It may give LONG_MAX as directory size, this is invalid for us. */ - if(size == LONG_MAX) size = -1; - - fclose(file); - return size; -} - -/* load file into buffer that already has the correct allocated size. Returns error code.*/ -static unsigned lodepng_buffer_file(unsigned char* out, size_t size, const char* filename) -{ - FILE* file; - size_t readsize; - file = fopen(filename, "rb"); - if(!file) return 78; - - readsize = fread(out, 1, size, file); - fclose(file); - - if (readsize != size) return 78; - return 0; -} - -unsigned lodepng_load_file(unsigned char** out, size_t* outsize, const char* filename) -{ - long size = lodepng_filesize(filename); - if (size < 0) return 78; - *outsize = (size_t)size; - - *out = (unsigned char*)lodepng_malloc((size_t)size); - if(!(*out) && size > 0) return 83; /*the above malloc failed*/ - - return lodepng_buffer_file(*out, (size_t)size, filename); -} - -/*write given buffer to the file, overwriting the file, it doesn't append to it.*/ -unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename) -{ - FILE* file; - file = fopen(filename, "wb" ); - if(!file) return 79; - fwrite((char*)buffer , 1 , buffersize, file); - fclose(file); - return 0; -} - -#endif /*LODEPNG_COMPILE_DISK*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // End of common code and tools. Begin of Zlib related code. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_ENCODER -/*TODO: this ignores potential out of memory errors*/ -#define addBitToStream(/*size_t**/ bitpointer, /*ucvector**/ bitstream, /*unsigned char*/ bit)\ -{\ - /*add a new byte at the end*/\ - if(((*bitpointer) & 7) == 0) ucvector_push_back(bitstream, (unsigned char)0);\ - /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/\ - (bitstream->data[bitstream->size - 1]) |= (bit << ((*bitpointer) & 0x7));\ - ++(*bitpointer);\ -} - -static void addBitsToStream(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits) -{ - size_t i; - for(i = 0; i != nbits; ++i) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> i) & 1)); -} - -static void addBitsToStreamReversed(size_t* bitpointer, ucvector* bitstream, unsigned value, size_t nbits) -{ - size_t i; - for(i = 0; i != nbits; ++i) addBitToStream(bitpointer, bitstream, (unsigned char)((value >> (nbits - 1 - i)) & 1)); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -#define READBIT(bitpointer, bitstream) ((bitstream[bitpointer >> 3] >> (bitpointer & 0x7)) & (unsigned char)1) - -static unsigned char readBitFromStream(size_t* bitpointer, const unsigned char* bitstream) -{ - unsigned char result = (unsigned char)(READBIT(*bitpointer, bitstream)); - ++(*bitpointer); - return result; -} - -static unsigned readBitsFromStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits) -{ - unsigned result = 0, i; - for(i = 0; i != nbits; ++i) - { - result += ((unsigned)READBIT(*bitpointer, bitstream)) << i; - ++(*bitpointer); - } - return result; -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Deflate - Huffman / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#define FIRST_LENGTH_CODE_INDEX 257 -#define LAST_LENGTH_CODE_INDEX 285 -/*256 literals, the end code, some length codes, and 2 unused codes*/ -#define NUM_DEFLATE_CODE_SYMBOLS 288 -/*the distance codes have their own symbols, 30 used, 2 unused*/ -#define NUM_DISTANCE_SYMBOLS 32 -/*the code length codes. 0-15: code lengths, 16: copy previous 3-6 times, 17: 3-10 zeros, 18: 11-138 zeros*/ -#define NUM_CODE_LENGTH_CODES 19 - -/*the base lengths represented by codes 257-285*/ -static const unsigned LENGTHBASE[29] - = {3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, - 67, 83, 99, 115, 131, 163, 195, 227, 258}; - -/*the extra bits used by codes 257-285 (added to base length)*/ -static const unsigned LENGTHEXTRA[29] - = {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, - 4, 4, 4, 4, 5, 5, 5, 5, 0}; - -/*the base backwards distances (the bits of distance codes appear after length codes and use their own huffman tree)*/ -static const unsigned DISTANCEBASE[30] - = {1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, - 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577}; - -/*the extra bits of backwards distances (added to base)*/ -static const unsigned DISTANCEEXTRA[30] - = {0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, - 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13}; - -/*the order in which "code length alphabet code lengths" are stored, out of this -the huffman tree of the dynamic huffman tree lengths is generated*/ -static const unsigned CLCL_ORDER[NUM_CODE_LENGTH_CODES] - = {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - -/* ////////////////////////////////////////////////////////////////////////// */ - -/* -Huffman tree struct, containing multiple representations of the tree -*/ -typedef struct HuffmanTree -{ - unsigned* tree2d; - unsigned* tree1d; - unsigned* lengths; /*the lengths of the codes of the 1d-tree*/ - unsigned maxbitlen; /*maximum number of bits a single code can get*/ - unsigned numcodes; /*number of symbols in the alphabet = number of codes*/ -} HuffmanTree; - -/*function used for debug purposes to draw the tree in ascii art with C++*/ -/* -static void HuffmanTree_draw(HuffmanTree* tree) -{ - std::cout << "tree. length: " << tree->numcodes << " maxbitlen: " << tree->maxbitlen << std::endl; - for(size_t i = 0; i != tree->tree1d.size; ++i) - { - if(tree->lengths.data[i]) - std::cout << i << " " << tree->tree1d.data[i] << " " << tree->lengths.data[i] << std::endl; - } - std::cout << std::endl; -}*/ - -static void HuffmanTree_init(HuffmanTree* tree) -{ - tree->tree2d = 0; - tree->tree1d = 0; - tree->lengths = 0; -} - -static void HuffmanTree_cleanup(HuffmanTree* tree) -{ - lodepng_free(tree->tree2d); - lodepng_free(tree->tree1d); - lodepng_free(tree->lengths); -} - -/*the tree representation used by the decoder. return value is error*/ -static unsigned HuffmanTree_make2DTree(HuffmanTree* tree) -{ - unsigned nodefilled = 0; /*up to which node it is filled*/ - unsigned treepos = 0; /*position in the tree (1 of the numcodes columns)*/ - unsigned n, i; - - tree->tree2d = (unsigned*)lodepng_malloc(tree->numcodes * 2 * sizeof(unsigned)); - if(!tree->tree2d) return 83; /*alloc fail*/ - - /* - convert tree1d[] to tree2d[][]. In the 2D array, a value of 32767 means - uninited, a value >= numcodes is an address to another bit, a value < numcodes - is a code. The 2 rows are the 2 possible bit values (0 or 1), there are as - many columns as codes - 1. - A good huffman tree has N * 2 - 1 nodes, of which N - 1 are internal nodes. - Here, the internal nodes are stored (what their 0 and 1 option point to). - There is only memory for such good tree currently, if there are more nodes - (due to too long length codes), error 55 will happen - */ - for(n = 0; n < tree->numcodes * 2; ++n) - { - tree->tree2d[n] = 32767; /*32767 here means the tree2d isn't filled there yet*/ - } - - for(n = 0; n < tree->numcodes; ++n) /*the codes*/ - { - for(i = 0; i != tree->lengths[n]; ++i) /*the bits for this code*/ - { - unsigned char bit = (unsigned char)((tree->tree1d[n] >> (tree->lengths[n] - i - 1)) & 1); - /*oversubscribed, see comment in lodepng_error_text*/ - if(treepos > 2147483647 || treepos + 2 > tree->numcodes) return 55; - if(tree->tree2d[2 * treepos + bit] == 32767) /*not yet filled in*/ - { - if(i + 1 == tree->lengths[n]) /*last bit*/ - { - tree->tree2d[2 * treepos + bit] = n; /*put the current code in it*/ - treepos = 0; - } - else - { - /*put address of the next step in here, first that address has to be found of course - (it's just nodefilled + 1)...*/ - ++nodefilled; - /*addresses encoded with numcodes added to it*/ - tree->tree2d[2 * treepos + bit] = nodefilled + tree->numcodes; - treepos = nodefilled; - } - } - else treepos = tree->tree2d[2 * treepos + bit] - tree->numcodes; - } - } - - for(n = 0; n < tree->numcodes * 2; ++n) - { - if(tree->tree2d[n] == 32767) tree->tree2d[n] = 0; /*remove possible remaining 32767's*/ - } - - return 0; -} - -/* -Second step for the ...makeFromLengths and ...makeFromFrequencies functions. -numcodes, lengths and maxbitlen must already be filled in correctly. return -value is error. -*/ -static unsigned HuffmanTree_makeFromLengths2(HuffmanTree* tree) -{ - uivector blcount; - uivector nextcode; - unsigned error = 0; - unsigned bits, n; - - uivector_init(&blcount); - uivector_init(&nextcode); - - tree->tree1d = (unsigned*)lodepng_malloc(tree->numcodes * sizeof(unsigned)); - if(!tree->tree1d) error = 83; /*alloc fail*/ - - if(!uivector_resizev(&blcount, tree->maxbitlen + 1, 0) - || !uivector_resizev(&nextcode, tree->maxbitlen + 1, 0)) - error = 83; /*alloc fail*/ - - if(!error) - { - /*step 1: count number of instances of each code length*/ - for(bits = 0; bits != tree->numcodes; ++bits) ++blcount.data[tree->lengths[bits]]; - /*step 2: generate the nextcode values*/ - for(bits = 1; bits <= tree->maxbitlen; ++bits) - { - nextcode.data[bits] = (nextcode.data[bits - 1] + blcount.data[bits - 1]) << 1; - } - /*step 3: generate all the codes*/ - for(n = 0; n != tree->numcodes; ++n) - { - if(tree->lengths[n] != 0) tree->tree1d[n] = nextcode.data[tree->lengths[n]]++; - } - } - - uivector_cleanup(&blcount); - uivector_cleanup(&nextcode); - - if(!error) return HuffmanTree_make2DTree(tree); - else return error; -} - -/* -given the code lengths (as stored in the PNG file), generate the tree as defined -by Deflate. maxbitlen is the maximum bits that a code in the tree can have. -return value is error. -*/ -static unsigned HuffmanTree_makeFromLengths(HuffmanTree* tree, const unsigned* bitlen, - size_t numcodes, unsigned maxbitlen) -{ - unsigned i; - tree->lengths = (unsigned*)lodepng_malloc(numcodes * sizeof(unsigned)); - if(!tree->lengths) return 83; /*alloc fail*/ - for(i = 0; i != numcodes; ++i) tree->lengths[i] = bitlen[i]; - tree->numcodes = (unsigned)numcodes; /*number of symbols*/ - tree->maxbitlen = maxbitlen; - return HuffmanTree_makeFromLengths2(tree); -} - -#ifdef LODEPNG_COMPILE_ENCODER - -/*BPM: Boundary Package Merge, see "A Fast and Space-Economical Algorithm for Length-Limited Coding", -Jyrki Katajainen, Alistair Moffat, Andrew Turpin, 1995.*/ - -/*chain node for boundary package merge*/ -typedef struct BPMNode -{ - int weight; /*the sum of all weights in this chain*/ - unsigned index; /*index of this leaf node (called "count" in the paper)*/ - struct BPMNode* tail; /*the next nodes in this chain (null if last)*/ - int in_use; -} BPMNode; - -/*lists of chains*/ -typedef struct BPMLists -{ - /*memory pool*/ - unsigned memsize; - BPMNode* memory; - unsigned numfree; - unsigned nextfree; - BPMNode** freelist; - /*two heads of lookahead chains per list*/ - unsigned listsize; - BPMNode** chains0; - BPMNode** chains1; -} BPMLists; - -/*creates a new chain node with the given parameters, from the memory in the lists */ -static BPMNode* bpmnode_create(BPMLists* lists, int weight, unsigned index, BPMNode* tail) -{ - unsigned i; - BPMNode* result; - - /*memory full, so garbage collect*/ - if(lists->nextfree >= lists->numfree) - { - /*mark only those that are in use*/ - for(i = 0; i != lists->memsize; ++i) lists->memory[i].in_use = 0; - for(i = 0; i != lists->listsize; ++i) - { - BPMNode* node; - for(node = lists->chains0[i]; node != 0; node = node->tail) node->in_use = 1; - for(node = lists->chains1[i]; node != 0; node = node->tail) node->in_use = 1; - } - /*collect those that are free*/ - lists->numfree = 0; - for(i = 0; i != lists->memsize; ++i) - { - if(!lists->memory[i].in_use) lists->freelist[lists->numfree++] = &lists->memory[i]; - } - lists->nextfree = 0; - } - - result = lists->freelist[lists->nextfree++]; - result->weight = weight; - result->index = index; - result->tail = tail; - return result; -} - -/*sort the leaves with stable mergesort*/ -static void bpmnode_sort(BPMNode* leaves, size_t num) -{ - BPMNode* mem = (BPMNode*)lodepng_malloc(sizeof(*leaves) * num); - size_t width, counter = 0; - for(width = 1; width < num; width *= 2) - { - BPMNode* a = (counter & 1) ? mem : leaves; - BPMNode* b = (counter & 1) ? leaves : mem; - size_t p; - for(p = 0; p < num; p += 2 * width) - { - size_t q = (p + width > num) ? num : (p + width); - size_t r = (p + 2 * width > num) ? num : (p + 2 * width); - size_t i = p, j = q, k; - for(k = p; k < r; k++) - { - if(i < q && (j >= r || a[i].weight <= a[j].weight)) b[k] = a[i++]; - else b[k] = a[j++]; - } - } - counter++; - } - if(counter & 1) memcpy(leaves, mem, sizeof(*leaves) * num); - lodepng_free(mem); -} - -/*Boundary Package Merge step, numpresent is the amount of leaves, and c is the current chain.*/ -static void boundaryPM(BPMLists* lists, BPMNode* leaves, size_t numpresent, int c, int num) -{ - unsigned lastindex = lists->chains1[c]->index; - - if(c == 0) - { - if(lastindex >= numpresent) return; - lists->chains0[c] = lists->chains1[c]; - lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, 0); - } - else - { - /*sum of the weights of the head nodes of the previous lookahead chains.*/ - int sum = lists->chains0[c - 1]->weight + lists->chains1[c - 1]->weight; - lists->chains0[c] = lists->chains1[c]; - if(lastindex < numpresent && sum > leaves[lastindex].weight) - { - lists->chains1[c] = bpmnode_create(lists, leaves[lastindex].weight, lastindex + 1, lists->chains1[c]->tail); - return; - } - lists->chains1[c] = bpmnode_create(lists, sum, lastindex, lists->chains1[c - 1]); - /*in the end we are only interested in the chain of the last list, so no - need to recurse if we're at the last one (this gives measurable speedup)*/ - if(num + 1 < (int)(2 * numpresent - 2)) - { - boundaryPM(lists, leaves, numpresent, c - 1, num); - boundaryPM(lists, leaves, numpresent, c - 1, num); - } - } -} - -unsigned lodepng_huffman_code_lengths(unsigned* lengths, const unsigned* frequencies, - size_t numcodes, unsigned maxbitlen) -{ - unsigned error = 0; - unsigned i; - size_t numpresent = 0; /*number of symbols with non-zero frequency*/ - BPMNode* leaves; /*the symbols, only those with > 0 frequency*/ - - if(numcodes == 0) return 80; /*error: a tree of 0 symbols is not supposed to be made*/ - if((1u << maxbitlen) < numcodes) return 80; /*error: represent all symbols*/ - - leaves = (BPMNode*)lodepng_malloc(numcodes * sizeof(*leaves)); - if(!leaves) return 83; /*alloc fail*/ - - for(i = 0; i != numcodes; ++i) - { - if(frequencies[i] > 0) - { - leaves[numpresent].weight = (int)frequencies[i]; - leaves[numpresent].index = i; - ++numpresent; - } - } - - for(i = 0; i != numcodes; ++i) lengths[i] = 0; - - /*ensure at least two present symbols. There should be at least one symbol - according to RFC 1951 section 3.2.7. Some decoders incorrectly require two. To - make these work as well ensure there are at least two symbols. The - Package-Merge code below also doesn't work correctly if there's only one - symbol, it'd give it the theoritical 0 bits but in practice zlib wants 1 bit*/ - if(numpresent == 0) - { - lengths[0] = lengths[1] = 1; /*note that for RFC 1951 section 3.2.7, only lengths[0] = 1 is needed*/ - } - else if(numpresent == 1) - { - lengths[leaves[0].index] = 1; - lengths[leaves[0].index == 0 ? 1 : 0] = 1; - } - else - { - BPMLists lists; - BPMNode* node; - - bpmnode_sort(leaves, numpresent); - - lists.listsize = maxbitlen; - lists.memsize = 2 * maxbitlen * (maxbitlen + 1); - lists.nextfree = 0; - lists.numfree = lists.memsize; - lists.memory = (BPMNode*)lodepng_malloc(lists.memsize * sizeof(*lists.memory)); - lists.freelist = (BPMNode**)lodepng_malloc(lists.memsize * sizeof(BPMNode*)); - lists.chains0 = (BPMNode**)lodepng_malloc(lists.listsize * sizeof(BPMNode*)); - lists.chains1 = (BPMNode**)lodepng_malloc(lists.listsize * sizeof(BPMNode*)); - if(!lists.memory || !lists.freelist || !lists.chains0 || !lists.chains1) error = 83; /*alloc fail*/ - - if(!error) - { - for(i = 0; i != lists.memsize; ++i) lists.freelist[i] = &lists.memory[i]; - - bpmnode_create(&lists, leaves[0].weight, 1, 0); - bpmnode_create(&lists, leaves[1].weight, 2, 0); - - for(i = 0; i != lists.listsize; ++i) - { - lists.chains0[i] = &lists.memory[0]; - lists.chains1[i] = &lists.memory[1]; - } - - /*each boundaryPM call adds one chain to the last list, and we need 2 * numpresent - 2 chains.*/ - for(i = 2; i != 2 * numpresent - 2; ++i) boundaryPM(&lists, leaves, numpresent, (int)maxbitlen - 1, (int)i); - - for(node = lists.chains1[maxbitlen - 1]; node; node = node->tail) - { - for(i = 0; i != node->index; ++i) ++lengths[leaves[i].index]; - } - } - - lodepng_free(lists.memory); - lodepng_free(lists.freelist); - lodepng_free(lists.chains0); - lodepng_free(lists.chains1); - } - - lodepng_free(leaves); - return error; -} - -/*Create the Huffman tree given the symbol frequencies*/ -static unsigned HuffmanTree_makeFromFrequencies(HuffmanTree* tree, const unsigned* frequencies, - size_t mincodes, size_t numcodes, unsigned maxbitlen) -{ - unsigned error = 0; - while(!frequencies[numcodes - 1] && numcodes > mincodes) --numcodes; /*trim zeroes*/ - tree->maxbitlen = maxbitlen; - tree->numcodes = (unsigned)numcodes; /*number of symbols*/ - tree->lengths = (unsigned*)lodepng_realloc(tree->lengths, numcodes * sizeof(unsigned)); - if(!tree->lengths) return 83; /*alloc fail*/ - /*initialize all lengths to 0*/ - memset(tree->lengths, 0, numcodes * sizeof(unsigned)); - - error = lodepng_huffman_code_lengths(tree->lengths, frequencies, numcodes, maxbitlen); - if(!error) error = HuffmanTree_makeFromLengths2(tree); - return error; -} - -static unsigned HuffmanTree_getCode(const HuffmanTree* tree, unsigned index) -{ - return tree->tree1d[index]; -} - -static unsigned HuffmanTree_getLength(const HuffmanTree* tree, unsigned index) -{ - return tree->lengths[index]; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/*get the literal and length code tree of a deflated block with fixed tree, as per the deflate specification*/ -static unsigned generateFixedLitLenTree(HuffmanTree* tree) -{ - unsigned i, error = 0; - unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned)); - if(!bitlen) return 83; /*alloc fail*/ - - /*288 possible codes: 0-255=literals, 256=endcode, 257-285=lengthcodes, 286-287=unused*/ - for(i = 0; i <= 143; ++i) bitlen[i] = 8; - for(i = 144; i <= 255; ++i) bitlen[i] = 9; - for(i = 256; i <= 279; ++i) bitlen[i] = 7; - for(i = 280; i <= 287; ++i) bitlen[i] = 8; - - error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DEFLATE_CODE_SYMBOLS, 15); - - lodepng_free(bitlen); - return error; -} - -/*get the distance code tree of a deflated block with fixed tree, as specified in the deflate specification*/ -static unsigned generateFixedDistanceTree(HuffmanTree* tree) -{ - unsigned i, error = 0; - unsigned* bitlen = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned)); - if(!bitlen) return 83; /*alloc fail*/ - - /*there are 32 distance codes, but 30-31 are unused*/ - for(i = 0; i != NUM_DISTANCE_SYMBOLS; ++i) bitlen[i] = 5; - error = HuffmanTree_makeFromLengths(tree, bitlen, NUM_DISTANCE_SYMBOLS, 15); - - lodepng_free(bitlen); - return error; -} - -#ifdef LODEPNG_COMPILE_DECODER - -/* -returns the code, or (unsigned)(-1) if error happened -inbitlength is the length of the complete buffer, in bits (so its byte length times 8) -*/ -static unsigned huffmanDecodeSymbol(const unsigned char* in, size_t* bp, - const HuffmanTree* codetree, size_t inbitlength) -{ - unsigned treepos = 0, ct; - for(;;) - { - if(*bp >= inbitlength) return (unsigned)(-1); /*error: end of input memory reached without endcode*/ - /* - decode the symbol from the tree. The "readBitFromStream" code is inlined in - the expression below because this is the biggest bottleneck while decoding - */ - ct = codetree->tree2d[(treepos << 1) + READBIT(*bp, in)]; - ++(*bp); - if(ct < codetree->numcodes) return ct; /*the symbol is decoded, return it*/ - else treepos = ct - codetree->numcodes; /*symbol not yet decoded, instead move tree position*/ - - if(treepos >= codetree->numcodes) return (unsigned)(-1); /*error: it appeared outside the codetree*/ - } -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Inflator (Decompressor) / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*get the tree of a deflated block with fixed tree, as specified in the deflate specification*/ -static void getTreeInflateFixed(HuffmanTree* tree_ll, HuffmanTree* tree_d) -{ - /*TODO: check for out of memory errors*/ - generateFixedLitLenTree(tree_ll); - generateFixedDistanceTree(tree_d); -} - -/*get the tree of a deflated block with dynamic tree, the tree itself is also Huffman compressed with a known tree*/ -static unsigned getTreeInflateDynamic(HuffmanTree* tree_ll, HuffmanTree* tree_d, - const unsigned char* in, size_t* bp, size_t inlength) -{ - /*make sure that length values that aren't filled in will be 0, or a wrong tree will be generated*/ - unsigned error = 0; - unsigned n, HLIT, HDIST, HCLEN, i; - size_t inbitlength = inlength * 8; - - /*see comments in deflateDynamic for explanation of the context and these variables, it is analogous*/ - unsigned* bitlen_ll = 0; /*lit,len code lengths*/ - unsigned* bitlen_d = 0; /*dist code lengths*/ - /*code length code lengths ("clcl"), the bit lengths of the huffman tree used to compress bitlen_ll and bitlen_d*/ - unsigned* bitlen_cl = 0; - HuffmanTree tree_cl; /*the code tree for code length codes (the huffman tree for compressed huffman trees)*/ - - if((*bp) + 14 > (inlength << 3)) return 49; /*error: the bit pointer is or will go past the memory*/ - - /*number of literal/length codes + 257. Unlike the spec, the value 257 is added to it here already*/ - HLIT = readBitsFromStream(bp, in, 5) + 257; - /*number of distance codes. Unlike the spec, the value 1 is added to it here already*/ - HDIST = readBitsFromStream(bp, in, 5) + 1; - /*number of code length codes. Unlike the spec, the value 4 is added to it here already*/ - HCLEN = readBitsFromStream(bp, in, 4) + 4; - - if((*bp) + HCLEN * 3 > (inlength << 3)) return 50; /*error: the bit pointer is or will go past the memory*/ - - HuffmanTree_init(&tree_cl); - - while(!error) - { - /*read the code length codes out of 3 * (amount of code length codes) bits*/ - - bitlen_cl = (unsigned*)lodepng_malloc(NUM_CODE_LENGTH_CODES * sizeof(unsigned)); - if(!bitlen_cl) ERROR_BREAK(83 /*alloc fail*/); - - for(i = 0; i != NUM_CODE_LENGTH_CODES; ++i) - { - if(i < HCLEN) bitlen_cl[CLCL_ORDER[i]] = readBitsFromStream(bp, in, 3); - else bitlen_cl[CLCL_ORDER[i]] = 0; /*if not, it must stay 0*/ - } - - error = HuffmanTree_makeFromLengths(&tree_cl, bitlen_cl, NUM_CODE_LENGTH_CODES, 7); - if(error) break; - - /*now we can use this tree to read the lengths for the tree that this function will return*/ - bitlen_ll = (unsigned*)lodepng_malloc(NUM_DEFLATE_CODE_SYMBOLS * sizeof(unsigned)); - bitlen_d = (unsigned*)lodepng_malloc(NUM_DISTANCE_SYMBOLS * sizeof(unsigned)); - if(!bitlen_ll || !bitlen_d) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != NUM_DEFLATE_CODE_SYMBOLS; ++i) bitlen_ll[i] = 0; - for(i = 0; i != NUM_DISTANCE_SYMBOLS; ++i) bitlen_d[i] = 0; - - /*i is the current symbol we're reading in the part that contains the code lengths of lit/len and dist codes*/ - i = 0; - while(i < HLIT + HDIST) - { - unsigned code = huffmanDecodeSymbol(in, bp, &tree_cl, inbitlength); - if(code <= 15) /*a length code*/ - { - if(i < HLIT) bitlen_ll[i] = code; - else bitlen_d[i - HLIT] = code; - ++i; - } - else if(code == 16) /*repeat previous*/ - { - unsigned replength = 3; /*read in the 2 bits that indicate repeat length (3-6)*/ - unsigned value; /*set value to the previous code*/ - - if(i == 0) ERROR_BREAK(54); /*can't repeat previous if i is 0*/ - - if((*bp + 2) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 2); - - if(i < HLIT + 1) value = bitlen_ll[i - 1]; - else value = bitlen_d[i - HLIT - 1]; - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) - { - if(i >= HLIT + HDIST) ERROR_BREAK(13); /*error: i is larger than the amount of codes*/ - if(i < HLIT) bitlen_ll[i] = value; - else bitlen_d[i - HLIT] = value; - ++i; - } - } - else if(code == 17) /*repeat "0" 3-10 times*/ - { - unsigned replength = 3; /*read in the bits that indicate repeat length*/ - if((*bp + 3) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 3); - - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) - { - if(i >= HLIT + HDIST) ERROR_BREAK(14); /*error: i is larger than the amount of codes*/ - - if(i < HLIT) bitlen_ll[i] = 0; - else bitlen_d[i - HLIT] = 0; - ++i; - } - } - else if(code == 18) /*repeat "0" 11-138 times*/ - { - unsigned replength = 11; /*read in the bits that indicate repeat length*/ - if((*bp + 7) > inbitlength) ERROR_BREAK(50); /*error, bit pointer jumps past memory*/ - replength += readBitsFromStream(bp, in, 7); - - /*repeat this value in the next lengths*/ - for(n = 0; n < replength; ++n) - { - if(i >= HLIT + HDIST) ERROR_BREAK(15); /*error: i is larger than the amount of codes*/ - - if(i < HLIT) bitlen_ll[i] = 0; - else bitlen_d[i - HLIT] = 0; - ++i; - } - } - else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ - { - if(code == (unsigned)(-1)) - { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = (*bp) > inbitlength ? 10 : 11; - } - else error = 16; /*unexisting code, this can never happen*/ - break; - } - } - if(error) break; - - if(bitlen_ll[256] == 0) ERROR_BREAK(64); /*the length of the end code 256 must be larger than 0*/ - - /*now we've finally got HLIT and HDIST, so generate the code trees, and the function is done*/ - error = HuffmanTree_makeFromLengths(tree_ll, bitlen_ll, NUM_DEFLATE_CODE_SYMBOLS, 15); - if(error) break; - error = HuffmanTree_makeFromLengths(tree_d, bitlen_d, NUM_DISTANCE_SYMBOLS, 15); - - break; /*end of error-while*/ - } - - lodepng_free(bitlen_cl); - lodepng_free(bitlen_ll); - lodepng_free(bitlen_d); - HuffmanTree_cleanup(&tree_cl); - - return error; -} - -/*inflate a block with dynamic of fixed Huffman tree*/ -static unsigned inflateHuffmanBlock(ucvector* out, const unsigned char* in, size_t* bp, - size_t* pos, size_t inlength, unsigned btype) -{ - unsigned error = 0; - HuffmanTree tree_ll; /*the huffman tree for literal and length codes*/ - HuffmanTree tree_d; /*the huffman tree for distance codes*/ - size_t inbitlength = inlength * 8; - - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - - if(btype == 1) getTreeInflateFixed(&tree_ll, &tree_d); - else if(btype == 2) error = getTreeInflateDynamic(&tree_ll, &tree_d, in, bp, inlength); - - while(!error) /*decode all symbols until end reached, breaks at end code*/ - { - /*code_ll is literal, length or end code*/ - unsigned code_ll = huffmanDecodeSymbol(in, bp, &tree_ll, inbitlength); - if(code_ll <= 255) /*literal symbol*/ - { - /*ucvector_push_back would do the same, but for some reason the two lines below run 10% faster*/ - if(!ucvector_resize(out, (*pos) + 1)) ERROR_BREAK(83 /*alloc fail*/); - out->data[*pos] = (unsigned char)code_ll; - ++(*pos); - } - else if(code_ll >= FIRST_LENGTH_CODE_INDEX && code_ll <= LAST_LENGTH_CODE_INDEX) /*length code*/ - { - unsigned code_d, distance; - unsigned numextrabits_l, numextrabits_d; /*extra bits for length and distance*/ - size_t start, forward, backward, length; - - /*part 1: get length base*/ - length = LENGTHBASE[code_ll - FIRST_LENGTH_CODE_INDEX]; - - /*part 2: get extra bits and add the value of that to length*/ - numextrabits_l = LENGTHEXTRA[code_ll - FIRST_LENGTH_CODE_INDEX]; - if((*bp + numextrabits_l) > inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/ - length += readBitsFromStream(bp, in, numextrabits_l); - - /*part 3: get distance code*/ - code_d = huffmanDecodeSymbol(in, bp, &tree_d, inbitlength); - if(code_d > 29) - { - if(code_ll == (unsigned)(-1)) /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ - { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = (*bp) > inlength * 8 ? 10 : 11; - } - else error = 18; /*error: invalid distance code (30-31 are never used)*/ - break; - } - distance = DISTANCEBASE[code_d]; - - /*part 4: get extra bits from distance*/ - numextrabits_d = DISTANCEEXTRA[code_d]; - if((*bp + numextrabits_d) > inbitlength) ERROR_BREAK(51); /*error, bit pointer will jump past memory*/ - distance += readBitsFromStream(bp, in, numextrabits_d); - - /*part 5: fill in all the out[n] values based on the length and dist*/ - start = (*pos); - if(distance > start) ERROR_BREAK(52); /*too long backward distance*/ - backward = start - distance; - - if(!ucvector_resize(out, (*pos) + length)) ERROR_BREAK(83 /*alloc fail*/); - if (distance < length) { - for(forward = 0; forward < length; ++forward) - { - out->data[(*pos)++] = out->data[backward++]; - } - } else { - memcpy(out->data + *pos, out->data + backward, length); - *pos += length; - } - } - else if(code_ll == 256) - { - break; /*end code, break the loop*/ - } - else /*if(code == (unsigned)(-1))*/ /*huffmanDecodeSymbol returns (unsigned)(-1) in case of error*/ - { - /*return error code 10 or 11 depending on the situation that happened in huffmanDecodeSymbol - (10=no endcode, 11=wrong jump outside of tree)*/ - error = ((*bp) > inlength * 8) ? 10 : 11; - break; - } - } - - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - - return error; -} - -static unsigned inflateNoCompression(ucvector* out, const unsigned char* in, size_t* bp, size_t* pos, size_t inlength) -{ - size_t p; - unsigned LEN, NLEN, n, error = 0; - - /*go to first boundary of byte*/ - while(((*bp) & 0x7) != 0) ++(*bp); - p = (*bp) / 8; /*byte position*/ - - /*read LEN (2 bytes) and NLEN (2 bytes)*/ - if(p + 4 >= inlength) return 52; /*error, bit pointer will jump past memory*/ - LEN = in[p] + 256u * in[p + 1]; p += 2; - NLEN = in[p] + 256u * in[p + 1]; p += 2; - - /*check if 16-bit NLEN is really the one's complement of LEN*/ - if(LEN + NLEN != 65535) return 21; /*error: NLEN is not one's complement of LEN*/ - - if(!ucvector_resize(out, (*pos) + LEN)) return 83; /*alloc fail*/ - - /*read the literal data: LEN bytes are now stored in the out buffer*/ - if(p + LEN > inlength) return 23; /*error: reading outside of in buffer*/ - for(n = 0; n < LEN; ++n) out->data[(*pos)++] = in[p++]; - - (*bp) = p * 8; - - return error; -} - -static unsigned lodepng_inflatev(ucvector* out, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) -{ - /*bit pointer in the "in" data, current byte is bp >> 3, current bit is bp & 0x7 (from lsb to msb of the byte)*/ - size_t bp = 0; - unsigned BFINAL = 0; - size_t pos = 0; /*byte position in the out buffer*/ - unsigned error = 0; - - (void)settings; - - while(!BFINAL) - { - unsigned BTYPE; - if(bp + 2 >= insize * 8) return 52; /*error, bit pointer will jump past memory*/ - BFINAL = readBitFromStream(&bp, in); - BTYPE = 1u * readBitFromStream(&bp, in); - BTYPE += 2u * readBitFromStream(&bp, in); - - if(BTYPE == 3) return 20; /*error: invalid BTYPE*/ - else if(BTYPE == 0) error = inflateNoCompression(out, in, &bp, &pos, insize); /*no compression*/ - else error = inflateHuffmanBlock(out, in, &bp, &pos, insize, BTYPE); /*compression, BTYPE 01 or 10*/ - - if(error) return error; - } - - return error; -} - -unsigned lodepng_inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) -{ - unsigned error; - ucvector v; - ucvector_init_buffer(&v, *out, *outsize); - error = lodepng_inflatev(&v, in, insize, settings); - *out = v.data; - *outsize = v.size; - return error; -} - -static unsigned inflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGDecompressSettings* settings) -{ - if(settings->custom_inflate) - { - return settings->custom_inflate(out, outsize, in, insize, settings); - } - else - { - return lodepng_inflate(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Deflator (Compressor) / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static const size_t MAX_SUPPORTED_DEFLATE_LENGTH = 258; - -/*bitlen is the size in bits of the code*/ -static void addHuffmanSymbol(size_t* bp, ucvector* compressed, unsigned code, unsigned bitlen) -{ - addBitsToStreamReversed(bp, compressed, code, bitlen); -} - -/*search the index in the array, that has the largest value smaller than or equal to the given value, -given array must be sorted (if no value is smaller, it returns the size of the given array)*/ -static size_t searchCodeIndex(const unsigned* array, size_t array_size, size_t value) -{ - /*binary search (only small gain over linear). TODO: use CPU log2 instruction for getting symbols instead*/ - size_t left = 1; - size_t right = array_size - 1; - - while(left <= right) { - size_t mid = (left + right) >> 1; - if (array[mid] >= value) right = mid - 1; - else left = mid + 1; - } - if(left >= array_size || array[left] > value) left--; - return left; -} - -static void addLengthDistance(uivector* values, size_t length, size_t distance) -{ - /*values in encoded vector are those used by deflate: - 0-255: literal bytes - 256: end - 257-285: length/distance pair (length code, followed by extra length bits, distance code, extra distance bits) - 286-287: invalid*/ - - unsigned length_code = (unsigned)searchCodeIndex(LENGTHBASE, 29, length); - unsigned extra_length = (unsigned)(length - LENGTHBASE[length_code]); - unsigned dist_code = (unsigned)searchCodeIndex(DISTANCEBASE, 30, distance); - unsigned extra_distance = (unsigned)(distance - DISTANCEBASE[dist_code]); - - uivector_push_back(values, length_code + FIRST_LENGTH_CODE_INDEX); - uivector_push_back(values, extra_length); - uivector_push_back(values, dist_code); - uivector_push_back(values, extra_distance); -} - -/*3 bytes of data get encoded into two bytes. The hash cannot use more than 3 -bytes as input because 3 is the minimum match length for deflate*/ -static const unsigned HASH_NUM_VALUES = 65536; -static const unsigned HASH_BIT_MASK = 65535; /*HASH_NUM_VALUES - 1, but C90 does not like that as initializer*/ - -typedef struct Hash -{ - int* head; /*hash value to head circular pos - can be outdated if went around window*/ - /*circular pos to prev circular pos*/ - unsigned short* chain; - int* val; /*circular pos to hash value*/ - - /*TODO: do this not only for zeros but for any repeated byte. However for PNG - it's always going to be the zeros that dominate, so not important for PNG*/ - int* headz; /*similar to head, but for chainz*/ - unsigned short* chainz; /*those with same amount of zeros*/ - unsigned short* zeros; /*length of zeros streak, used as a second hash chain*/ -} Hash; - -static unsigned hash_init(Hash* hash, unsigned windowsize) -{ - unsigned i; - hash->head = (int*)lodepng_malloc(sizeof(int) * HASH_NUM_VALUES); - hash->val = (int*)lodepng_malloc(sizeof(int) * windowsize); - hash->chain = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - - hash->zeros = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - hash->headz = (int*)lodepng_malloc(sizeof(int) * (MAX_SUPPORTED_DEFLATE_LENGTH + 1)); - hash->chainz = (unsigned short*)lodepng_malloc(sizeof(unsigned short) * windowsize); - - if(!hash->head || !hash->chain || !hash->val || !hash->headz|| !hash->chainz || !hash->zeros) - { - return 83; /*alloc fail*/ - } - - /*initialize hash table*/ - for(i = 0; i != HASH_NUM_VALUES; ++i) hash->head[i] = -1; - for(i = 0; i != windowsize; ++i) hash->val[i] = -1; - for(i = 0; i != windowsize; ++i) hash->chain[i] = i; /*same value as index indicates uninitialized*/ - - for(i = 0; i <= MAX_SUPPORTED_DEFLATE_LENGTH; ++i) hash->headz[i] = -1; - for(i = 0; i != windowsize; ++i) hash->chainz[i] = i; /*same value as index indicates uninitialized*/ - - return 0; -} - -static void hash_cleanup(Hash* hash) -{ - lodepng_free(hash->head); - lodepng_free(hash->val); - lodepng_free(hash->chain); - - lodepng_free(hash->zeros); - lodepng_free(hash->headz); - lodepng_free(hash->chainz); -} - - - -static unsigned getHash(const unsigned char* data, size_t size, size_t pos) -{ - unsigned result = 0; - if(pos + 2 < size) - { - /*A simple shift and xor hash is used. Since the data of PNGs is dominated - by zeroes due to the filters, a better hash does not have a significant - effect on speed in traversing the chain, and causes more time spend on - calculating the hash.*/ - result ^= (unsigned)(data[pos + 0] << 0u); - result ^= (unsigned)(data[pos + 1] << 4u); - result ^= (unsigned)(data[pos + 2] << 8u); - } else { - size_t amount, i; - if(pos >= size) return 0; - amount = size - pos; - for(i = 0; i != amount; ++i) result ^= (unsigned)(data[pos + i] << (i * 8u)); - } - return result & HASH_BIT_MASK; -} - -static unsigned countZeros(const unsigned char* data, size_t size, size_t pos) -{ - const unsigned char* start = data + pos; - const unsigned char* end = start + MAX_SUPPORTED_DEFLATE_LENGTH; - if(end > data + size) end = data + size; - data = start; - while(data != end && *data == 0) ++data; - /*subtracting two addresses returned as 32-bit number (max value is MAX_SUPPORTED_DEFLATE_LENGTH)*/ - return (unsigned)(data - start); -} - -/*wpos = pos & (windowsize - 1)*/ -static void updateHashChain(Hash* hash, size_t wpos, unsigned hashval, unsigned short numzeros) -{ - hash->val[wpos] = (int)hashval; - if(hash->head[hashval] != -1) hash->chain[wpos] = hash->head[hashval]; - hash->head[hashval] = wpos; - - hash->zeros[wpos] = numzeros; - if(hash->headz[numzeros] != -1) hash->chainz[wpos] = hash->headz[numzeros]; - hash->headz[numzeros] = wpos; -} - -/* -LZ77-encode the data. Return value is error code. The input are raw bytes, the output -is in the form of unsigned integers with codes representing for example literal bytes, or -length/distance pairs. -It uses a hash table technique to let it encode faster. When doing LZ77 encoding, a -sliding window (of windowsize) is used, and all past bytes in that window can be used as -the "dictionary". A brute force search through all possible distances would be slow, and -this hash technique is one out of several ways to speed this up. -*/ -static unsigned encodeLZ77(uivector* out, Hash* hash, - const unsigned char* in, size_t inpos, size_t insize, unsigned windowsize, - unsigned minmatch, unsigned nicematch, unsigned lazymatching) -{ - size_t pos; - unsigned i, error = 0; - /*for large window lengths, assume the user wants no compression loss. Otherwise, max hash chain length speedup.*/ - unsigned maxchainlength = windowsize >= 8192 ? windowsize : windowsize / 8; - unsigned maxlazymatch = windowsize >= 8192 ? MAX_SUPPORTED_DEFLATE_LENGTH : 64; - - unsigned usezeros = 1; /*not sure if setting it to false for windowsize < 8192 is better or worse*/ - unsigned numzeros = 0; - - unsigned offset; /*the offset represents the distance in LZ77 terminology*/ - unsigned length; - unsigned lazy = 0; - unsigned lazylength = 0, lazyoffset = 0; - unsigned hashval; - unsigned current_offset, current_length; - unsigned prev_offset; - const unsigned char *lastptr, *foreptr, *backptr; - unsigned hashpos; - - if(windowsize == 0 || windowsize > 32768) return 60; /*error: windowsize smaller/larger than allowed*/ - if((windowsize & (windowsize - 1)) != 0) return 90; /*error: must be power of two*/ - - if(nicematch > MAX_SUPPORTED_DEFLATE_LENGTH) nicematch = MAX_SUPPORTED_DEFLATE_LENGTH; - - for(pos = inpos; pos < insize; ++pos) - { - size_t wpos = pos & (windowsize - 1); /*position for in 'circular' hash buffers*/ - unsigned chainlength = 0; - - hashval = getHash(in, insize, pos); - - if(usezeros && hashval == 0) - { - if(numzeros == 0) numzeros = countZeros(in, insize, pos); - else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros; - } - else - { - numzeros = 0; - } - - updateHashChain(hash, wpos, hashval, numzeros); - - /*the length and offset found for the current position*/ - length = 0; - offset = 0; - - hashpos = hash->chain[wpos]; - - lastptr = &in[insize < pos + MAX_SUPPORTED_DEFLATE_LENGTH ? insize : pos + MAX_SUPPORTED_DEFLATE_LENGTH]; - - /*search for the longest string*/ - prev_offset = 0; - for(;;) - { - if(chainlength++ >= maxchainlength) break; - current_offset = hashpos <= wpos ? wpos - hashpos : wpos - hashpos + windowsize; - - if(current_offset < prev_offset) break; /*stop when went completely around the circular buffer*/ - prev_offset = current_offset; - if(current_offset > 0) - { - /*test the next characters*/ - foreptr = &in[pos]; - backptr = &in[pos - current_offset]; - - /*common case in PNGs is lots of zeros. Quickly skip over them as a speedup*/ - if(numzeros >= 3) - { - unsigned skip = hash->zeros[hashpos]; - if(skip > numzeros) skip = numzeros; - backptr += skip; - foreptr += skip; - } - - while(foreptr != lastptr && *backptr == *foreptr) /*maximum supported length by deflate is max length*/ - { - ++backptr; - ++foreptr; - } - current_length = (unsigned)(foreptr - &in[pos]); - - if(current_length > length) - { - length = current_length; /*the longest length*/ - offset = current_offset; /*the offset that is related to this longest length*/ - /*jump out once a length of max length is found (speed gain). This also jumps - out if length is MAX_SUPPORTED_DEFLATE_LENGTH*/ - if(current_length >= nicematch) break; - } - } - - if(hashpos == hash->chain[hashpos]) break; - - if(numzeros >= 3 && length > numzeros) - { - hashpos = hash->chainz[hashpos]; - if(hash->zeros[hashpos] != numzeros) break; - } - else - { - hashpos = hash->chain[hashpos]; - /*outdated hash value, happens if particular value was not encountered in whole last window*/ - if(hash->val[hashpos] != (int)hashval) break; - } - } - - if(lazymatching) - { - if(!lazy && length >= 3 && length <= maxlazymatch && length < MAX_SUPPORTED_DEFLATE_LENGTH) - { - lazy = 1; - lazylength = length; - lazyoffset = offset; - continue; /*try the next byte*/ - } - if(lazy) - { - lazy = 0; - if(pos == 0) ERROR_BREAK(81); - if(length > lazylength + 1) - { - /*push the previous character as literal*/ - if(!uivector_push_back(out, in[pos - 1])) ERROR_BREAK(83 /*alloc fail*/); - } - else - { - length = lazylength; - offset = lazyoffset; - hash->head[hashval] = -1; /*the same hashchain update will be done, this ensures no wrong alteration*/ - hash->headz[numzeros] = -1; /*idem*/ - --pos; - } - } - } - if(length >= 3 && offset > windowsize) ERROR_BREAK(86 /*too big (or overflown negative) offset*/); - - /*encode it as length/distance pair or literal value*/ - if(length < 3) /*only lengths of 3 or higher are supported as length/distance pair*/ - { - if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/); - } - else if(length < minmatch || (length == 3 && offset > 4096)) - { - /*compensate for the fact that longer offsets have more extra bits, a - length of only 3 may be not worth it then*/ - if(!uivector_push_back(out, in[pos])) ERROR_BREAK(83 /*alloc fail*/); - } - else - { - addLengthDistance(out, length, offset); - for(i = 1; i < length; ++i) - { - ++pos; - wpos = pos & (windowsize - 1); - hashval = getHash(in, insize, pos); - if(usezeros && hashval == 0) - { - if(numzeros == 0) numzeros = countZeros(in, insize, pos); - else if(pos + numzeros > insize || in[pos + numzeros - 1] != 0) --numzeros; - } - else - { - numzeros = 0; - } - updateHashChain(hash, wpos, hashval, numzeros); - } - } - } /*end of the loop through each character of input*/ - - return error; -} - -/* /////////////////////////////////////////////////////////////////////////// */ - -static unsigned deflateNoCompression(ucvector* out, const unsigned char* data, size_t datasize) -{ - /*non compressed deflate block data: 1 bit BFINAL,2 bits BTYPE,(5 bits): it jumps to start of next byte, - 2 bytes LEN, 2 bytes NLEN, LEN bytes literal DATA*/ - - size_t i, j, numdeflateblocks = (datasize + 65534) / 65535; - unsigned datapos = 0; - for(i = 0; i != numdeflateblocks; ++i) - { - unsigned BFINAL, BTYPE, LEN, NLEN; - unsigned char firstbyte; - - BFINAL = (i == numdeflateblocks - 1); - BTYPE = 0; - - firstbyte = (unsigned char)(BFINAL + ((BTYPE & 1) << 1) + ((BTYPE & 2) << 1)); - ucvector_push_back(out, firstbyte); - - LEN = 65535; - if(datasize - datapos < 65535) LEN = (unsigned)datasize - datapos; - NLEN = 65535 - LEN; - - ucvector_push_back(out, (unsigned char)(LEN & 255)); - ucvector_push_back(out, (unsigned char)(LEN >> 8)); - ucvector_push_back(out, (unsigned char)(NLEN & 255)); - ucvector_push_back(out, (unsigned char)(NLEN >> 8)); - - /*Decompressed data*/ - for(j = 0; j < 65535 && datapos < datasize; ++j) - { - ucvector_push_back(out, data[datapos++]); - } - } - - return 0; -} - -/* -write the lz77-encoded data, which has lit, len and dist codes, to compressed stream using huffman trees. -tree_ll: the tree for lit and len codes. -tree_d: the tree for distance codes. -*/ -static void writeLZ77data(size_t* bp, ucvector* out, const uivector* lz77_encoded, - const HuffmanTree* tree_ll, const HuffmanTree* tree_d) -{ - size_t i = 0; - for(i = 0; i != lz77_encoded->size; ++i) - { - unsigned val = lz77_encoded->data[i]; - addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_ll, val), HuffmanTree_getLength(tree_ll, val)); - if(val > 256) /*for a length code, 3 more things have to be added*/ - { - unsigned length_index = val - FIRST_LENGTH_CODE_INDEX; - unsigned n_length_extra_bits = LENGTHEXTRA[length_index]; - unsigned length_extra_bits = lz77_encoded->data[++i]; - - unsigned distance_code = lz77_encoded->data[++i]; - - unsigned distance_index = distance_code; - unsigned n_distance_extra_bits = DISTANCEEXTRA[distance_index]; - unsigned distance_extra_bits = lz77_encoded->data[++i]; - - addBitsToStream(bp, out, length_extra_bits, n_length_extra_bits); - addHuffmanSymbol(bp, out, HuffmanTree_getCode(tree_d, distance_code), - HuffmanTree_getLength(tree_d, distance_code)); - addBitsToStream(bp, out, distance_extra_bits, n_distance_extra_bits); - } - } -} - -/*Deflate for a block of type "dynamic", that is, with freely, optimally, created huffman trees*/ -static unsigned deflateDynamic(ucvector* out, size_t* bp, Hash* hash, - const unsigned char* data, size_t datapos, size_t dataend, - const LodePNGCompressSettings* settings, unsigned final) -{ - unsigned error = 0; - - /* - A block is compressed as follows: The PNG data is lz77 encoded, resulting in - literal bytes and length/distance pairs. This is then huffman compressed with - two huffman trees. One huffman tree is used for the lit and len values ("ll"), - another huffman tree is used for the dist values ("d"). These two trees are - stored using their code lengths, and to compress even more these code lengths - are also run-length encoded and huffman compressed. This gives a huffman tree - of code lengths "cl". The code lenghts used to describe this third tree are - the code length code lengths ("clcl"). - */ - - /*The lz77 encoded data, represented with integers since there will also be length and distance codes in it*/ - uivector lz77_encoded; - HuffmanTree tree_ll; /*tree for lit,len values*/ - HuffmanTree tree_d; /*tree for distance codes*/ - HuffmanTree tree_cl; /*tree for encoding the code lengths representing tree_ll and tree_d*/ - uivector frequencies_ll; /*frequency of lit,len codes*/ - uivector frequencies_d; /*frequency of dist codes*/ - uivector frequencies_cl; /*frequency of code length codes*/ - uivector bitlen_lld; /*lit,len,dist code lenghts (int bits), literally (without repeat codes).*/ - uivector bitlen_lld_e; /*bitlen_lld encoded with repeat codes (this is a rudemtary run length compression)*/ - /*bitlen_cl is the code length code lengths ("clcl"). The bit lengths of codes to represent tree_cl - (these are written as is in the file, it would be crazy to compress these using yet another huffman - tree that needs to be represented by yet another set of code lengths)*/ - uivector bitlen_cl; - size_t datasize = dataend - datapos; - - /* - Due to the huffman compression of huffman tree representations ("two levels"), there are some anologies: - bitlen_lld is to tree_cl what data is to tree_ll and tree_d. - bitlen_lld_e is to bitlen_lld what lz77_encoded is to data. - bitlen_cl is to bitlen_lld_e what bitlen_lld is to lz77_encoded. - */ - - unsigned BFINAL = final; - size_t numcodes_ll, numcodes_d, i; - unsigned HLIT, HDIST, HCLEN; - - uivector_init(&lz77_encoded); - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - HuffmanTree_init(&tree_cl); - uivector_init(&frequencies_ll); - uivector_init(&frequencies_d); - uivector_init(&frequencies_cl); - uivector_init(&bitlen_lld); - uivector_init(&bitlen_lld_e); - uivector_init(&bitlen_cl); - - /*This while loop never loops due to a break at the end, it is here to - allow breaking out of it to the cleanup phase on error conditions.*/ - while(!error) - { - if(settings->use_lz77) - { - error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize, - settings->minmatch, settings->nicematch, settings->lazymatching); - if(error) break; - } - else - { - if(!uivector_resize(&lz77_encoded, datasize)) ERROR_BREAK(83 /*alloc fail*/); - for(i = datapos; i < dataend; ++i) lz77_encoded.data[i - datapos] = data[i]; /*no LZ77, but still will be Huffman compressed*/ - } - - if(!uivector_resizev(&frequencies_ll, 286, 0)) ERROR_BREAK(83 /*alloc fail*/); - if(!uivector_resizev(&frequencies_d, 30, 0)) ERROR_BREAK(83 /*alloc fail*/); - - /*Count the frequencies of lit, len and dist codes*/ - for(i = 0; i != lz77_encoded.size; ++i) - { - unsigned symbol = lz77_encoded.data[i]; - ++frequencies_ll.data[symbol]; - if(symbol > 256) - { - unsigned dist = lz77_encoded.data[i + 2]; - ++frequencies_d.data[dist]; - i += 3; - } - } - frequencies_ll.data[256] = 1; /*there will be exactly 1 end code, at the end of the block*/ - - /*Make both huffman trees, one for the lit and len codes, one for the dist codes*/ - error = HuffmanTree_makeFromFrequencies(&tree_ll, frequencies_ll.data, 257, frequencies_ll.size, 15); - if(error) break; - /*2, not 1, is chosen for mincodes: some buggy PNG decoders require at least 2 symbols in the dist tree*/ - error = HuffmanTree_makeFromFrequencies(&tree_d, frequencies_d.data, 2, frequencies_d.size, 15); - if(error) break; - - numcodes_ll = tree_ll.numcodes; if(numcodes_ll > 286) numcodes_ll = 286; - numcodes_d = tree_d.numcodes; if(numcodes_d > 30) numcodes_d = 30; - /*store the code lengths of both generated trees in bitlen_lld*/ - for(i = 0; i != numcodes_ll; ++i) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_ll, (unsigned)i)); - for(i = 0; i != numcodes_d; ++i) uivector_push_back(&bitlen_lld, HuffmanTree_getLength(&tree_d, (unsigned)i)); - - /*run-length compress bitlen_ldd into bitlen_lld_e by using repeat codes 16 (copy length 3-6 times), - 17 (3-10 zeroes), 18 (11-138 zeroes)*/ - for(i = 0; i != (unsigned)bitlen_lld.size; ++i) - { - unsigned j = 0; /*amount of repititions*/ - while(i + j + 1 < (unsigned)bitlen_lld.size && bitlen_lld.data[i + j + 1] == bitlen_lld.data[i]) ++j; - - if(bitlen_lld.data[i] == 0 && j >= 2) /*repeat code for zeroes*/ - { - ++j; /*include the first zero*/ - if(j <= 10) /*repeat code 17 supports max 10 zeroes*/ - { - uivector_push_back(&bitlen_lld_e, 17); - uivector_push_back(&bitlen_lld_e, j - 3); - } - else /*repeat code 18 supports max 138 zeroes*/ - { - if(j > 138) j = 138; - uivector_push_back(&bitlen_lld_e, 18); - uivector_push_back(&bitlen_lld_e, j - 11); - } - i += (j - 1); - } - else if(j >= 3) /*repeat code for value other than zero*/ - { - size_t k; - unsigned num = j / 6, rest = j % 6; - uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]); - for(k = 0; k < num; ++k) - { - uivector_push_back(&bitlen_lld_e, 16); - uivector_push_back(&bitlen_lld_e, 6 - 3); - } - if(rest >= 3) - { - uivector_push_back(&bitlen_lld_e, 16); - uivector_push_back(&bitlen_lld_e, rest - 3); - } - else j -= rest; - i += j; - } - else /*too short to benefit from repeat code*/ - { - uivector_push_back(&bitlen_lld_e, bitlen_lld.data[i]); - } - } - - /*generate tree_cl, the huffmantree of huffmantrees*/ - - if(!uivector_resizev(&frequencies_cl, NUM_CODE_LENGTH_CODES, 0)) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != bitlen_lld_e.size; ++i) - { - ++frequencies_cl.data[bitlen_lld_e.data[i]]; - /*after a repeat code come the bits that specify the number of repetitions, - those don't need to be in the frequencies_cl calculation*/ - if(bitlen_lld_e.data[i] >= 16) ++i; - } - - error = HuffmanTree_makeFromFrequencies(&tree_cl, frequencies_cl.data, - frequencies_cl.size, frequencies_cl.size, 7); - if(error) break; - - if(!uivector_resize(&bitlen_cl, tree_cl.numcodes)) ERROR_BREAK(83 /*alloc fail*/); - for(i = 0; i != tree_cl.numcodes; ++i) - { - /*lenghts of code length tree is in the order as specified by deflate*/ - bitlen_cl.data[i] = HuffmanTree_getLength(&tree_cl, CLCL_ORDER[i]); - } - while(bitlen_cl.data[bitlen_cl.size - 1] == 0 && bitlen_cl.size > 4) - { - /*remove zeros at the end, but minimum size must be 4*/ - if(!uivector_resize(&bitlen_cl, bitlen_cl.size - 1)) ERROR_BREAK(83 /*alloc fail*/); - } - if(error) break; - - /* - Write everything into the output - - After the BFINAL and BTYPE, the dynamic block consists out of the following: - - 5 bits HLIT, 5 bits HDIST, 4 bits HCLEN - - (HCLEN+4)*3 bits code lengths of code length alphabet - - HLIT + 257 code lenghts of lit/length alphabet (encoded using the code length - alphabet, + possible repetition codes 16, 17, 18) - - HDIST + 1 code lengths of distance alphabet (encoded using the code length - alphabet, + possible repetition codes 16, 17, 18) - - compressed data - - 256 (end code) - */ - - /*Write block type*/ - addBitToStream(bp, out, BFINAL); - addBitToStream(bp, out, 0); /*first bit of BTYPE "dynamic"*/ - addBitToStream(bp, out, 1); /*second bit of BTYPE "dynamic"*/ - - /*write the HLIT, HDIST and HCLEN values*/ - HLIT = (unsigned)(numcodes_ll - 257); - HDIST = (unsigned)(numcodes_d - 1); - HCLEN = (unsigned)bitlen_cl.size - 4; - /*trim zeroes for HCLEN. HLIT and HDIST were already trimmed at tree creation*/ - while(!bitlen_cl.data[HCLEN + 4 - 1] && HCLEN > 0) --HCLEN; - addBitsToStream(bp, out, HLIT, 5); - addBitsToStream(bp, out, HDIST, 5); - addBitsToStream(bp, out, HCLEN, 4); - - /*write the code lenghts of the code length alphabet*/ - for(i = 0; i != HCLEN + 4; ++i) addBitsToStream(bp, out, bitlen_cl.data[i], 3); - - /*write the lenghts of the lit/len AND the dist alphabet*/ - for(i = 0; i != bitlen_lld_e.size; ++i) - { - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_cl, bitlen_lld_e.data[i]), - HuffmanTree_getLength(&tree_cl, bitlen_lld_e.data[i])); - /*extra bits of repeat codes*/ - if(bitlen_lld_e.data[i] == 16) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 2); - else if(bitlen_lld_e.data[i] == 17) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 3); - else if(bitlen_lld_e.data[i] == 18) addBitsToStream(bp, out, bitlen_lld_e.data[++i], 7); - } - - /*write the compressed data symbols*/ - writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d); - /*error: the length of the end code 256 must be larger than 0*/ - if(HuffmanTree_getLength(&tree_ll, 256) == 0) ERROR_BREAK(64); - - /*write the end code*/ - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256)); - - break; /*end of error-while*/ - } - - /*cleanup*/ - uivector_cleanup(&lz77_encoded); - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - HuffmanTree_cleanup(&tree_cl); - uivector_cleanup(&frequencies_ll); - uivector_cleanup(&frequencies_d); - uivector_cleanup(&frequencies_cl); - uivector_cleanup(&bitlen_lld_e); - uivector_cleanup(&bitlen_lld); - uivector_cleanup(&bitlen_cl); - - return error; -} - -static unsigned deflateFixed(ucvector* out, size_t* bp, Hash* hash, - const unsigned char* data, - size_t datapos, size_t dataend, - const LodePNGCompressSettings* settings, unsigned final) -{ - HuffmanTree tree_ll; /*tree for literal values and length codes*/ - HuffmanTree tree_d; /*tree for distance codes*/ - - unsigned BFINAL = final; - unsigned error = 0; - size_t i; - - HuffmanTree_init(&tree_ll); - HuffmanTree_init(&tree_d); - - generateFixedLitLenTree(&tree_ll); - generateFixedDistanceTree(&tree_d); - - addBitToStream(bp, out, BFINAL); - addBitToStream(bp, out, 1); /*first bit of BTYPE*/ - addBitToStream(bp, out, 0); /*second bit of BTYPE*/ - - if(settings->use_lz77) /*LZ77 encoded*/ - { - uivector lz77_encoded; - uivector_init(&lz77_encoded); - error = encodeLZ77(&lz77_encoded, hash, data, datapos, dataend, settings->windowsize, - settings->minmatch, settings->nicematch, settings->lazymatching); - if(!error) writeLZ77data(bp, out, &lz77_encoded, &tree_ll, &tree_d); - uivector_cleanup(&lz77_encoded); - } - else /*no LZ77, but still will be Huffman compressed*/ - { - for(i = datapos; i < dataend; ++i) - { - addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, data[i]), HuffmanTree_getLength(&tree_ll, data[i])); - } - } - /*add END code*/ - if(!error) addHuffmanSymbol(bp, out, HuffmanTree_getCode(&tree_ll, 256), HuffmanTree_getLength(&tree_ll, 256)); - - /*cleanup*/ - HuffmanTree_cleanup(&tree_ll); - HuffmanTree_cleanup(&tree_d); - - return error; -} - -static unsigned lodepng_deflatev(ucvector* out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) -{ - unsigned error = 0; - size_t i, blocksize, numdeflateblocks; - size_t bp = 0; /*the bit pointer*/ - Hash hash; - - if(settings->btype > 2) return 61; - else if(settings->btype == 0) return deflateNoCompression(out, in, insize); - else if(settings->btype == 1) blocksize = insize; - else /*if(settings->btype == 2)*/ - { - /*on PNGs, deflate blocks of 65-262k seem to give most dense encoding*/ - blocksize = insize / 8 + 8; - if(blocksize < 65536) blocksize = 65536; - if(blocksize > 262144) blocksize = 262144; - } - - numdeflateblocks = (insize + blocksize - 1) / blocksize; - if(numdeflateblocks == 0) numdeflateblocks = 1; - - error = hash_init(&hash, settings->windowsize); - if(error) return error; - - for(i = 0; i != numdeflateblocks && !error; ++i) - { - unsigned final = (i == numdeflateblocks - 1); - size_t start = i * blocksize; - size_t end = start + blocksize; - if(end > insize) end = insize; - - if(settings->btype == 1) error = deflateFixed(out, &bp, &hash, in, start, end, settings, final); - else if(settings->btype == 2) error = deflateDynamic(out, &bp, &hash, in, start, end, settings, final); - } - - hash_cleanup(&hash); - - return error; -} - -unsigned lodepng_deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) -{ - unsigned error; - ucvector v; - ucvector_init_buffer(&v, *out, *outsize); - error = lodepng_deflatev(&v, in, insize, settings); - *out = v.data; - *outsize = v.size; - return error; -} - -static unsigned deflate(unsigned char** out, size_t* outsize, - const unsigned char* in, size_t insize, - const LodePNGCompressSettings* settings) -{ - if(settings->custom_deflate) - { - return settings->custom_deflate(out, outsize, in, insize, settings); - } - else - { - return lodepng_deflate(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Adler32 */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static unsigned update_adler32(unsigned adler, const unsigned char* data, unsigned len) -{ - unsigned s1 = adler & 0xffff; - unsigned s2 = (adler >> 16) & 0xffff; - - while(len > 0) - { - /*at least 5550 sums can be done before the sums overflow, saving a lot of module divisions*/ - unsigned amount = len > 5550 ? 5550 : len; - len -= amount; - while(amount > 0) - { - s1 += (*data++); - s2 += s1; - --amount; - } - s1 %= 65521; - s2 %= 65521; - } - - return (s2 << 16) | s1; -} - -/*Return the adler32 of the bytes data[0..len-1]*/ -static unsigned adler32(const unsigned char* data, unsigned len) -{ - return update_adler32(1L, data, len); -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Zlib / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_DECODER - -unsigned lodepng_zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) -{ - unsigned error = 0; - unsigned CM, CINFO, FDICT; - - if(insize < 2) return 53; /*error, size of zlib data too small*/ - /*read information from zlib header*/ - if((in[0] * 256 + in[1]) % 31 != 0) - { - /*error: 256 * in[0] + in[1] must be a multiple of 31, the FCHECK value is supposed to be made that way*/ - return 24; - } - - CM = in[0] & 15; - CINFO = (in[0] >> 4) & 15; - /*FCHECK = in[1] & 31;*/ /*FCHECK is already tested above*/ - FDICT = (in[1] >> 5) & 1; - /*FLEVEL = (in[1] >> 6) & 3;*/ /*FLEVEL is not used here*/ - - if(CM != 8 || CINFO > 7) - { - /*error: only compression method 8: inflate with sliding window of 32k is supported by the PNG spec*/ - return 25; - } - if(FDICT != 0) - { - /*error: the specification of PNG says about the zlib stream: - "The additional flags shall not specify a preset dictionary."*/ - return 26; - } - - error = inflate(out, outsize, in + 2, insize - 2, settings); - if(error) return error; - - if(!settings->ignore_adler32) - { - unsigned ADLER32 = lodepng_read32bitInt(&in[insize - 4]); - unsigned checksum = adler32(*out, (unsigned)(*outsize)); - if(checksum != ADLER32) return 58; /*error, adler checksum not correct, data must be corrupted*/ - } - - return 0; /*no error*/ -} - -static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) -{ - if(settings->custom_zlib) - { - return settings->custom_zlib(out, outsize, in, insize, settings); - } - else - { - return lodepng_zlib_decompress(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#ifdef LODEPNG_COMPILE_ENCODER - -unsigned lodepng_zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) -{ - /*initially, *out must be NULL and outsize 0, if you just give some random *out - that's pointing to a non allocated buffer, this'll crash*/ - ucvector outv; - size_t i; - unsigned error; - unsigned char* deflatedata = 0; - size_t deflatesize = 0; - - /*zlib data: 1 byte CMF (CM+CINFO), 1 byte FLG, deflate data, 4 byte ADLER32 checksum of the Decompressed data*/ - unsigned CMF = 120; /*0b01111000: CM 8, CINFO 7. With CINFO 7, any window size up to 32768 can be used.*/ - unsigned FLEVEL = 0; - unsigned FDICT = 0; - unsigned CMFFLG = 256 * CMF + FDICT * 32 + FLEVEL * 64; - unsigned FCHECK = 31 - CMFFLG % 31; - CMFFLG += FCHECK; - - /*ucvector-controlled version of the output buffer, for dynamic array*/ - ucvector_init_buffer(&outv, *out, *outsize); - - ucvector_push_back(&outv, (unsigned char)(CMFFLG >> 8)); - ucvector_push_back(&outv, (unsigned char)(CMFFLG & 255)); - - error = deflate(&deflatedata, &deflatesize, in, insize, settings); - - if(!error) - { - unsigned ADLER32 = adler32(in, (unsigned)insize); - for(i = 0; i != deflatesize; ++i) ucvector_push_back(&outv, deflatedata[i]); - lodepng_free(deflatedata); - lodepng_add32bitInt(&outv, ADLER32); - } - - *out = outv.data; - *outsize = outv.size; - - return error; -} - -/* compress using the default or custom zlib function */ -static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) -{ - if(settings->custom_zlib) - { - return settings->custom_zlib(out, outsize, in, insize, settings); - } - else - { - return lodepng_zlib_compress(out, outsize, in, insize, settings); - } -} - -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#else /*no LODEPNG_COMPILE_ZLIB*/ - -#ifdef LODEPNG_COMPILE_DECODER -static unsigned zlib_decompress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGDecompressSettings* settings) -{ - if(!settings->custom_zlib) return 87; /*no custom zlib function provided */ - return settings->custom_zlib(out, outsize, in, insize, settings); -} -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER -static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsigned char* in, - size_t insize, const LodePNGCompressSettings* settings) -{ - if(!settings->custom_zlib) return 87; /*no custom zlib function provided */ - return settings->custom_zlib(out, outsize, in, insize, settings); -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#endif /*LODEPNG_COMPILE_ZLIB*/ - -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_ENCODER - -/*this is a good tradeoff between speed and compression ratio*/ -#define DEFAULT_WINDOWSIZE 2048 - -void lodepng_compress_settings_init(LodePNGCompressSettings* settings) -{ - /*compress with dynamic huffman tree (not in the mathematical sense, just not the predefined one)*/ - settings->btype = 2; - settings->use_lz77 = 1; - settings->windowsize = DEFAULT_WINDOWSIZE; - settings->minmatch = 3; - settings->nicematch = 128; - settings->lazymatching = 1; - - settings->custom_zlib = 0; - settings->custom_deflate = 0; - settings->custom_context = 0; -} - -const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0}; - - -#endif /*LODEPNG_COMPILE_ENCODER*/ - -#ifdef LODEPNG_COMPILE_DECODER - -void lodepng_decompress_settings_init(LodePNGDecompressSettings* settings) -{ - settings->ignore_adler32 = 0; - - settings->custom_zlib = 0; - settings->custom_inflate = 0; - settings->custom_context = 0; -} - -const LodePNGDecompressSettings lodepng_default_decompress_settings = {0, 0, 0, 0}; - -#endif /*LODEPNG_COMPILE_DECODER*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // End of Zlib related code. Begin of PNG related code. // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_PNG - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / CRC32 / */ -/* ////////////////////////////////////////////////////////////////////////// */ - - -#ifndef LODEPNG_NO_COMPILE_CRC -/* CRC polynomial: 0xedb88320 */ -static unsigned lodepng_crc32_table[256] = { - 0u, 1996959894u, 3993919788u, 2567524794u, 124634137u, 1886057615u, 3915621685u, 2657392035u, - 249268274u, 2044508324u, 3772115230u, 2547177864u, 162941995u, 2125561021u, 3887607047u, 2428444049u, - 498536548u, 1789927666u, 4089016648u, 2227061214u, 450548861u, 1843258603u, 4107580753u, 2211677639u, - 325883990u, 1684777152u, 4251122042u, 2321926636u, 335633487u, 1661365465u, 4195302755u, 2366115317u, - 997073096u, 1281953886u, 3579855332u, 2724688242u, 1006888145u, 1258607687u, 3524101629u, 2768942443u, - 901097722u, 1119000684u, 3686517206u, 2898065728u, 853044451u, 1172266101u, 3705015759u, 2882616665u, - 651767980u, 1373503546u, 3369554304u, 3218104598u, 565507253u, 1454621731u, 3485111705u, 3099436303u, - 671266974u, 1594198024u, 3322730930u, 2970347812u, 795835527u, 1483230225u, 3244367275u, 3060149565u, - 1994146192u, 31158534u, 2563907772u, 4023717930u, 1907459465u, 112637215u, 2680153253u, 3904427059u, - 2013776290u, 251722036u, 2517215374u, 3775830040u, 2137656763u, 141376813u, 2439277719u, 3865271297u, - 1802195444u, 476864866u, 2238001368u, 4066508878u, 1812370925u, 453092731u, 2181625025u, 4111451223u, - 1706088902u, 314042704u, 2344532202u, 4240017532u, 1658658271u, 366619977u, 2362670323u, 4224994405u, - 1303535960u, 984961486u, 2747007092u, 3569037538u, 1256170817u, 1037604311u, 2765210733u, 3554079995u, - 1131014506u, 879679996u, 2909243462u, 3663771856u, 1141124467u, 855842277u, 2852801631u, 3708648649u, - 1342533948u, 654459306u, 3188396048u, 3373015174u, 1466479909u, 544179635u, 3110523913u, 3462522015u, - 1591671054u, 702138776u, 2966460450u, 3352799412u, 1504918807u, 783551873u, 3082640443u, 3233442989u, - 3988292384u, 2596254646u, 62317068u, 1957810842u, 3939845945u, 2647816111u, 81470997u, 1943803523u, - 3814918930u, 2489596804u, 225274430u, 2053790376u, 3826175755u, 2466906013u, 167816743u, 2097651377u, - 4027552580u, 2265490386u, 503444072u, 1762050814u, 4150417245u, 2154129355u, 426522225u, 1852507879u, - 4275313526u, 2312317920u, 282753626u, 1742555852u, 4189708143u, 2394877945u, 397917763u, 1622183637u, - 3604390888u, 2714866558u, 953729732u, 1340076626u, 3518719985u, 2797360999u, 1068828381u, 1219638859u, - 3624741850u, 2936675148u, 906185462u, 1090812512u, 3747672003u, 2825379669u, 829329135u, 1181335161u, - 3412177804u, 3160834842u, 628085408u, 1382605366u, 3423369109u, 3138078467u, 570562233u, 1426400815u, - 3317316542u, 2998733608u, 733239954u, 1555261956u, 3268935591u, 3050360625u, 752459403u, 1541320221u, - 2607071920u, 3965973030u, 1969922972u, 40735498u, 2617837225u, 3943577151u, 1913087877u, 83908371u, - 2512341634u, 3803740692u, 2075208622u, 213261112u, 2463272603u, 3855990285u, 2094854071u, 198958881u, - 2262029012u, 4057260610u, 1759359992u, 534414190u, 2176718541u, 4139329115u, 1873836001u, 414664567u, - 2282248934u, 4279200368u, 1711684554u, 285281116u, 2405801727u, 4167216745u, 1634467795u, 376229701u, - 2685067896u, 3608007406u, 1308918612u, 956543938u, 2808555105u, 3495958263u, 1231636301u, 1047427035u, - 2932959818u, 3654703836u, 1088359270u, 936918000u, 2847714899u, 3736837829u, 1202900863u, 817233897u, - 3183342108u, 3401237130u, 1404277552u, 615818150u, 3134207493u, 3453421203u, 1423857449u, 601450431u, - 3009837614u, 3294710456u, 1567103746u, 711928724u, 3020668471u, 3272380065u, 1510334235u, 755167117u -}; - -/*Return the CRC of the bytes buf[0..len-1].*/ -unsigned lodepng_crc32(const unsigned char* data, size_t length) -{ - unsigned r = 0xffffffffu; - size_t i; - for(i = 0; i < length; ++i) - { - r = lodepng_crc32_table[(r ^ data[i]) & 0xff] ^ (r >> 8); - } - return r ^ 0xffffffffu; -} -#else /* !LODEPNG_NO_COMPILE_CRC */ -unsigned lodepng_crc32(const unsigned char* data, size_t length); -#endif /* !LODEPNG_NO_COMPILE_CRC */ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Reading and writing single bits and bytes from/to stream for LodePNG / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -static unsigned char readBitFromReversedStream(size_t* bitpointer, const unsigned char* bitstream) -{ - unsigned char result = (unsigned char)((bitstream[(*bitpointer) >> 3] >> (7 - ((*bitpointer) & 0x7))) & 1); - ++(*bitpointer); - return result; -} - -static unsigned readBitsFromReversedStream(size_t* bitpointer, const unsigned char* bitstream, size_t nbits) -{ - unsigned result = 0; - size_t i; - for(i = 0 ; i < nbits; ++i) - { - result <<= 1; - result |= (unsigned)readBitFromReversedStream(bitpointer, bitstream); - } - return result; -} - -#ifdef LODEPNG_COMPILE_DECODER -static void setBitOfReversedStream0(size_t* bitpointer, unsigned char* bitstream, unsigned char bit) -{ - /*the current bit in bitstream must be 0 for this to work*/ - if(bit) - { - /*earlier bit of huffman code is in a lesser significant bit of an earlier byte*/ - bitstream[(*bitpointer) >> 3] |= (bit << (7 - ((*bitpointer) & 0x7))); - } - ++(*bitpointer); -} -#endif /*LODEPNG_COMPILE_DECODER*/ - -static void setBitOfReversedStream(size_t* bitpointer, unsigned char* bitstream, unsigned char bit) -{ - /*the current bit in bitstream may be 0 or 1 for this to work*/ - if(bit == 0) bitstream[(*bitpointer) >> 3] &= (unsigned char)(~(1 << (7 - ((*bitpointer) & 0x7)))); - else bitstream[(*bitpointer) >> 3] |= (1 << (7 - ((*bitpointer) & 0x7))); - ++(*bitpointer); -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG chunks / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -unsigned lodepng_chunk_length(const unsigned char* chunk) -{ - return lodepng_read32bitInt(&chunk[0]); -} - -void lodepng_chunk_type(char type[5], const unsigned char* chunk) -{ - unsigned i; - for(i = 0; i != 4; ++i) type[i] = (char)chunk[4 + i]; - type[4] = 0; /*null termination char*/ -} - -unsigned char lodepng_chunk_type_equals(const unsigned char* chunk, const char* type) -{ - if(strlen(type) != 4) return 0; - return (chunk[4] == type[0] && chunk[5] == type[1] && chunk[6] == type[2] && chunk[7] == type[3]); -} - -unsigned char lodepng_chunk_ancillary(const unsigned char* chunk) -{ - return((chunk[4] & 32) != 0); -} - -unsigned char lodepng_chunk_private(const unsigned char* chunk) -{ - return((chunk[6] & 32) != 0); -} - -unsigned char lodepng_chunk_safetocopy(const unsigned char* chunk) -{ - return((chunk[7] & 32) != 0); -} - -unsigned char* lodepng_chunk_data(unsigned char* chunk) -{ - return &chunk[8]; -} - -const unsigned char* lodepng_chunk_data_const(const unsigned char* chunk) -{ - return &chunk[8]; -} - -unsigned lodepng_chunk_check_crc(const unsigned char* chunk) -{ - unsigned length = lodepng_chunk_length(chunk); - unsigned CRC = lodepng_read32bitInt(&chunk[length + 8]); - /*the CRC is taken of the data and the 4 chunk type letters, not the length*/ - unsigned checksum = lodepng_crc32(&chunk[4], length + 4); - if(CRC != checksum) return 1; - else return 0; -} - -void lodepng_chunk_generate_crc(unsigned char* chunk) -{ - unsigned length = lodepng_chunk_length(chunk); - unsigned CRC = lodepng_crc32(&chunk[4], length + 4); - lodepng_set32bitInt(chunk + 8 + length, CRC); -} - -unsigned char* lodepng_chunk_next(unsigned char* chunk) -{ - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - return &chunk[total_chunk_length]; -} - -const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk) -{ - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - return &chunk[total_chunk_length]; -} - -unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk) -{ - unsigned i; - unsigned total_chunk_length = lodepng_chunk_length(chunk) + 12; - unsigned char *chunk_start, *new_buffer; - size_t new_length = (*outlength) + total_chunk_length; - if(new_length < total_chunk_length || new_length < (*outlength)) return 77; /*integer overflow happened*/ - - new_buffer = (unsigned char*)lodepng_realloc(*out, new_length); - if(!new_buffer) return 83; /*alloc fail*/ - (*out) = new_buffer; - (*outlength) = new_length; - chunk_start = &(*out)[new_length - total_chunk_length]; - - for(i = 0; i != total_chunk_length; ++i) chunk_start[i] = chunk[i]; - - return 0; -} - -unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length, - const char* type, const unsigned char* data) -{ - unsigned i; - unsigned char *chunk, *new_buffer; - size_t new_length = (*outlength) + length + 12; - if(new_length < length + 12 || new_length < (*outlength)) return 77; /*integer overflow happened*/ - new_buffer = (unsigned char*)lodepng_realloc(*out, new_length); - if(!new_buffer) return 83; /*alloc fail*/ - (*out) = new_buffer; - (*outlength) = new_length; - chunk = &(*out)[(*outlength) - length - 12]; - - /*1: length*/ - lodepng_set32bitInt(chunk, (unsigned)length); - - /*2: chunk name (4 letters)*/ - chunk[4] = (unsigned char)type[0]; - chunk[5] = (unsigned char)type[1]; - chunk[6] = (unsigned char)type[2]; - chunk[7] = (unsigned char)type[3]; - - /*3: the data*/ - for(i = 0; i != length; ++i) chunk[8 + i] = data[i]; - - /*4: CRC (of the chunkname characters and the data)*/ - lodepng_chunk_generate_crc(chunk); - - return 0; -} - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / Color types and such / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*return type is a LodePNG error code*/ -static unsigned checkColorValidity(LodePNGColorType colortype, unsigned bd) /*bd = bitdepth*/ -{ - switch(colortype) - { - case 0: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 || bd == 16)) return 37; break; /*grey*/ - case 2: if(!( bd == 8 || bd == 16)) return 37; break; /*RGB*/ - case 3: if(!(bd == 1 || bd == 2 || bd == 4 || bd == 8 )) return 37; break; /*palette*/ - case 4: if(!( bd == 8 || bd == 16)) return 37; break; /*grey + alpha*/ - case 6: if(!( bd == 8 || bd == 16)) return 37; break; /*RGBA*/ - default: return 31; - } - return 0; /*allowed color type / bits combination*/ -} - -static unsigned getNumColorChannels(LodePNGColorType colortype) -{ - switch(colortype) - { - case 0: return 1; /*grey*/ - case 2: return 3; /*RGB*/ - case 3: return 1; /*palette*/ - case 4: return 2; /*grey + alpha*/ - case 6: return 4; /*RGBA*/ - } - return 0; /*unexisting color type*/ -} - -static unsigned lodepng_get_bpp_lct(LodePNGColorType colortype, unsigned bitdepth) -{ - /*bits per pixel is amount of channels * bits per channel*/ - return getNumColorChannels(colortype) * bitdepth; -} - -/* ////////////////////////////////////////////////////////////////////////// */ - -void lodepng_color_mode_init(LodePNGColorMode* info) -{ - info->key_defined = 0; - info->key_r = info->key_g = info->key_b = 0; - info->colortype = LCT_RGBA; - info->bitdepth = 8; - info->palette = 0; - info->palettesize = 0; -} - -void lodepng_color_mode_cleanup(LodePNGColorMode* info) -{ - lodepng_palette_clear(info); -} - -unsigned lodepng_color_mode_copy(LodePNGColorMode* dest, const LodePNGColorMode* source) -{ - size_t i; - lodepng_color_mode_cleanup(dest); - *dest = *source; - if(source->palette) - { - dest->palette = (unsigned char*)lodepng_malloc(1024); - if(!dest->palette && source->palettesize) return 83; /*alloc fail*/ - for(i = 0; i != source->palettesize * 4; ++i) dest->palette[i] = source->palette[i]; - } - return 0; -} - -static int lodepng_color_mode_equal(const LodePNGColorMode* a, const LodePNGColorMode* b) -{ - size_t i; - if(a->colortype != b->colortype) return 0; - if(a->bitdepth != b->bitdepth) return 0; - if(a->key_defined != b->key_defined) return 0; - if(a->key_defined) - { - if(a->key_r != b->key_r) return 0; - if(a->key_g != b->key_g) return 0; - if(a->key_b != b->key_b) return 0; - } - /*if one of the palette sizes is 0, then we consider it to be the same as the - other: it means that e.g. the palette was not given by the user and should be - considered the same as the palette inside the PNG.*/ - if(1/*a->palettesize != 0 && b->palettesize != 0*/) { - if(a->palettesize != b->palettesize) return 0; - for(i = 0; i != a->palettesize * 4; ++i) - { - if(a->palette[i] != b->palette[i]) return 0; - } - } - return 1; -} - -void lodepng_palette_clear(LodePNGColorMode* info) -{ - if(info->palette) lodepng_free(info->palette); - info->palette = 0; - info->palettesize = 0; -} - -unsigned lodepng_palette_add(LodePNGColorMode* info, - unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - unsigned char* data; - /*the same resize technique as C++ std::vectors is used, and here it's made so that for a palette with - the max of 256 colors, it'll have the exact alloc size*/ - if(!info->palette) /*allocate palette if empty*/ - { - /*room for 256 colors with 4 bytes each*/ - data = (unsigned char*)lodepng_realloc(info->palette, 1024); - if(!data) return 83; /*alloc fail*/ - else info->palette = data; - } - info->palette[4 * info->palettesize + 0] = r; - info->palette[4 * info->palettesize + 1] = g; - info->palette[4 * info->palettesize + 2] = b; - info->palette[4 * info->palettesize + 3] = a; - ++info->palettesize; - return 0; -} - -unsigned lodepng_get_bpp(const LodePNGColorMode* info) -{ - /*calculate bits per pixel out of colortype and bitdepth*/ - return lodepng_get_bpp_lct(info->colortype, info->bitdepth); -} - -unsigned lodepng_get_channels(const LodePNGColorMode* info) -{ - return getNumColorChannels(info->colortype); -} - -unsigned lodepng_is_greyscale_type(const LodePNGColorMode* info) -{ - return info->colortype == LCT_GREY || info->colortype == LCT_GREY_ALPHA; -} - -unsigned lodepng_is_alpha_type(const LodePNGColorMode* info) -{ - return (info->colortype & 4) != 0; /*4 or 6*/ -} - -unsigned lodepng_is_palette_type(const LodePNGColorMode* info) -{ - return info->colortype == LCT_PALETTE; -} - -unsigned lodepng_has_palette_alpha(const LodePNGColorMode* info) -{ - size_t i; - for(i = 0; i != info->palettesize; ++i) - { - if(info->palette[i * 4 + 3] < 255) return 1; - } - return 0; -} - -unsigned lodepng_can_have_alpha(const LodePNGColorMode* info) -{ - return info->key_defined - || lodepng_is_alpha_type(info) - || lodepng_has_palette_alpha(info); -} - -size_t lodepng_get_raw_size(unsigned w, unsigned h, const LodePNGColorMode* color) -{ - /*will not overflow for any color type if roughly w * h < 268435455*/ - size_t bpp = lodepng_get_bpp(color); - size_t n = w * h; - return ((n / 8) * bpp) + ((n & 7) * bpp + 7) / 8; -} - -size_t lodepng_get_raw_size_lct(unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth) -{ - /*will not overflow for any color type if roughly w * h < 268435455*/ - size_t bpp = lodepng_get_bpp_lct(colortype, bitdepth); - size_t n = w * h; - return ((n / 8) * bpp) + ((n & 7) * bpp + 7) / 8; -} - - -#ifdef LODEPNG_COMPILE_PNG -#ifdef LODEPNG_COMPILE_DECODER -/*in an idat chunk, each scanline is a multiple of 8 bits, unlike the lodepng output buffer*/ -static size_t lodepng_get_raw_size_idat(unsigned w, unsigned h, const LodePNGColorMode* color) -{ - /*will not overflow for any color type if roughly w * h < 268435455*/ - size_t bpp = lodepng_get_bpp(color); - size_t line = ((w / 8) * bpp) + ((w & 7) * bpp + 7) / 8; - return h * line; -} -#endif /*LODEPNG_COMPILE_DECODER*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - -static void LodePNGUnknownChunks_init(LodePNGInfo* info) -{ - unsigned i; - for(i = 0; i != 3; ++i) info->unknown_chunks_data[i] = 0; - for(i = 0; i != 3; ++i) info->unknown_chunks_size[i] = 0; -} - -static void LodePNGUnknownChunks_cleanup(LodePNGInfo* info) -{ - unsigned i; - for(i = 0; i != 3; ++i) lodepng_free(info->unknown_chunks_data[i]); -} - -static unsigned LodePNGUnknownChunks_copy(LodePNGInfo* dest, const LodePNGInfo* src) -{ - unsigned i; - - LodePNGUnknownChunks_cleanup(dest); - - for(i = 0; i != 3; ++i) - { - size_t j; - dest->unknown_chunks_size[i] = src->unknown_chunks_size[i]; - dest->unknown_chunks_data[i] = (unsigned char*)lodepng_malloc(src->unknown_chunks_size[i]); - if(!dest->unknown_chunks_data[i] && dest->unknown_chunks_size[i]) return 83; /*alloc fail*/ - for(j = 0; j < src->unknown_chunks_size[i]; ++j) - { - dest->unknown_chunks_data[i][j] = src->unknown_chunks_data[i][j]; - } - } - - return 0; -} - -/******************************************************************************/ - -static void LodePNGText_init(LodePNGInfo* info) -{ - info->text_num = 0; - info->text_keys = NULL; - info->text_strings = NULL; -} - -static void LodePNGText_cleanup(LodePNGInfo* info) -{ - size_t i; - for(i = 0; i != info->text_num; ++i) - { - string_cleanup(&info->text_keys[i]); - string_cleanup(&info->text_strings[i]); - } - lodepng_free(info->text_keys); - lodepng_free(info->text_strings); -} - -static unsigned LodePNGText_copy(LodePNGInfo* dest, const LodePNGInfo* source) -{ - size_t i = 0; - dest->text_keys = 0; - dest->text_strings = 0; - dest->text_num = 0; - for(i = 0; i != source->text_num; ++i) - { - CERROR_TRY_RETURN(lodepng_add_text(dest, source->text_keys[i], source->text_strings[i])); - } - return 0; -} - -void lodepng_clear_text(LodePNGInfo* info) -{ - LodePNGText_cleanup(info); -} - -unsigned lodepng_add_text(LodePNGInfo* info, const char* key, const char* str) -{ - char** new_keys = (char**)(lodepng_realloc(info->text_keys, sizeof(char*) * (info->text_num + 1))); - char** new_strings = (char**)(lodepng_realloc(info->text_strings, sizeof(char*) * (info->text_num + 1))); - if(!new_keys || !new_strings) - { - lodepng_free(new_keys); - lodepng_free(new_strings); - return 83; /*alloc fail*/ - } - - ++info->text_num; - info->text_keys = new_keys; - info->text_strings = new_strings; - - string_init(&info->text_keys[info->text_num - 1]); - string_set(&info->text_keys[info->text_num - 1], key); - - string_init(&info->text_strings[info->text_num - 1]); - string_set(&info->text_strings[info->text_num - 1], str); - - return 0; -} - -/******************************************************************************/ - -static void LodePNGIText_init(LodePNGInfo* info) -{ - info->itext_num = 0; - info->itext_keys = NULL; - info->itext_langtags = NULL; - info->itext_transkeys = NULL; - info->itext_strings = NULL; -} - -static void LodePNGIText_cleanup(LodePNGInfo* info) -{ - size_t i; - for(i = 0; i != info->itext_num; ++i) - { - string_cleanup(&info->itext_keys[i]); - string_cleanup(&info->itext_langtags[i]); - string_cleanup(&info->itext_transkeys[i]); - string_cleanup(&info->itext_strings[i]); - } - lodepng_free(info->itext_keys); - lodepng_free(info->itext_langtags); - lodepng_free(info->itext_transkeys); - lodepng_free(info->itext_strings); -} - -static unsigned LodePNGIText_copy(LodePNGInfo* dest, const LodePNGInfo* source) -{ - size_t i = 0; - dest->itext_keys = 0; - dest->itext_langtags = 0; - dest->itext_transkeys = 0; - dest->itext_strings = 0; - dest->itext_num = 0; - for(i = 0; i != source->itext_num; ++i) - { - CERROR_TRY_RETURN(lodepng_add_itext(dest, source->itext_keys[i], source->itext_langtags[i], - source->itext_transkeys[i], source->itext_strings[i])); - } - return 0; -} - -void lodepng_clear_itext(LodePNGInfo* info) -{ - LodePNGIText_cleanup(info); -} - -unsigned lodepng_add_itext(LodePNGInfo* info, const char* key, const char* langtag, - const char* transkey, const char* str) -{ - char** new_keys = (char**)(lodepng_realloc(info->itext_keys, sizeof(char*) * (info->itext_num + 1))); - char** new_langtags = (char**)(lodepng_realloc(info->itext_langtags, sizeof(char*) * (info->itext_num + 1))); - char** new_transkeys = (char**)(lodepng_realloc(info->itext_transkeys, sizeof(char*) * (info->itext_num + 1))); - char** new_strings = (char**)(lodepng_realloc(info->itext_strings, sizeof(char*) * (info->itext_num + 1))); - if(!new_keys || !new_langtags || !new_transkeys || !new_strings) - { - lodepng_free(new_keys); - lodepng_free(new_langtags); - lodepng_free(new_transkeys); - lodepng_free(new_strings); - return 83; /*alloc fail*/ - } - - ++info->itext_num; - info->itext_keys = new_keys; - info->itext_langtags = new_langtags; - info->itext_transkeys = new_transkeys; - info->itext_strings = new_strings; - - string_init(&info->itext_keys[info->itext_num - 1]); - string_set(&info->itext_keys[info->itext_num - 1], key); - - string_init(&info->itext_langtags[info->itext_num - 1]); - string_set(&info->itext_langtags[info->itext_num - 1], langtag); - - string_init(&info->itext_transkeys[info->itext_num - 1]); - string_set(&info->itext_transkeys[info->itext_num - 1], transkey); - - string_init(&info->itext_strings[info->itext_num - 1]); - string_set(&info->itext_strings[info->itext_num - 1], str); - - return 0; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -void lodepng_info_init(LodePNGInfo* info) -{ - lodepng_color_mode_init(&info->color); - info->interlace_method = 0; - info->compression_method = 0; - info->filter_method = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - info->background_defined = 0; - info->background_r = info->background_g = info->background_b = 0; - - LodePNGText_init(info); - LodePNGIText_init(info); - - info->time_defined = 0; - info->phys_defined = 0; - - LodePNGUnknownChunks_init(info); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -void lodepng_info_cleanup(LodePNGInfo* info) -{ - lodepng_color_mode_cleanup(&info->color); -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - LodePNGText_cleanup(info); - LodePNGIText_cleanup(info); - - LodePNGUnknownChunks_cleanup(info); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -unsigned lodepng_info_copy(LodePNGInfo* dest, const LodePNGInfo* source) -{ - lodepng_info_cleanup(dest); - *dest = *source; - lodepng_color_mode_init(&dest->color); - CERROR_TRY_RETURN(lodepng_color_mode_copy(&dest->color, &source->color)); - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - CERROR_TRY_RETURN(LodePNGText_copy(dest, source)); - CERROR_TRY_RETURN(LodePNGIText_copy(dest, source)); - - LodePNGUnknownChunks_init(dest); - CERROR_TRY_RETURN(LodePNGUnknownChunks_copy(dest, source)); -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - return 0; -} - -void lodepng_info_swap(LodePNGInfo* a, LodePNGInfo* b) -{ - LodePNGInfo temp = *a; - *a = *b; - *b = temp; -} - -/* ////////////////////////////////////////////////////////////////////////// */ - -/*index: bitgroup index, bits: bitgroup size(1, 2 or 4), in: bitgroup value, out: octet array to add bits to*/ -static void addColorBits(unsigned char* out, size_t index, unsigned bits, unsigned in) -{ - unsigned m = bits == 1 ? 7 : bits == 2 ? 3 : 1; /*8 / bits - 1*/ - /*p = the partial index in the byte, e.g. with 4 palettebits it is 0 for first half or 1 for second half*/ - unsigned p = index & m; - in &= (1u << bits) - 1u; /*filter out any other bits of the input value*/ - in = in << (bits * (m - p)); - if(p == 0) out[index * bits / 8] = in; - else out[index * bits / 8] |= in; -} - -typedef struct ColorTree ColorTree; - -/* -One node of a color tree -This is the data structure used to count the number of unique colors and to get a palette -index for a color. It's like an octree, but because the alpha channel is used too, each -node has 16 instead of 8 children. -*/ -struct ColorTree -{ - ColorTree* children[16]; /*up to 16 pointers to ColorTree of next level*/ - int index; /*the payload. Only has a meaningful value if this is in the last level*/ -}; - -static void color_tree_init(ColorTree* tree) -{ - int i; - for(i = 0; i != 16; ++i) tree->children[i] = 0; - tree->index = -1; -} - -static void color_tree_cleanup(ColorTree* tree) -{ - int i; - for(i = 0; i != 16; ++i) - { - if(tree->children[i]) - { - color_tree_cleanup(tree->children[i]); - lodepng_free(tree->children[i]); - } - } -} - -/*returns -1 if color not present, its index otherwise*/ -static int color_tree_get(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - int bit = 0; - for(bit = 0; bit < 8; ++bit) - { - int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1); - if(!tree->children[i]) return -1; - else tree = tree->children[i]; - } - return tree ? tree->index : -1; -} - -#ifdef LODEPNG_COMPILE_ENCODER -static int color_tree_has(ColorTree* tree, unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - return color_tree_get(tree, r, g, b, a) >= 0; -} -#endif /*LODEPNG_COMPILE_ENCODER*/ - -/*color is not allowed to already exist. -Index should be >= 0 (it's signed to be compatible with using -1 for "doesn't exist")*/ -static void color_tree_add(ColorTree* tree, - unsigned char r, unsigned char g, unsigned char b, unsigned char a, unsigned index) -{ - int bit; - for(bit = 0; bit < 8; ++bit) - { - int i = 8 * ((r >> bit) & 1) + 4 * ((g >> bit) & 1) + 2 * ((b >> bit) & 1) + 1 * ((a >> bit) & 1); - if(!tree->children[i]) - { - tree->children[i] = (ColorTree*)lodepng_malloc(sizeof(ColorTree)); - color_tree_init(tree->children[i]); - } - tree = tree->children[i]; - } - tree->index = (int)index; -} - -/*put a pixel, given its RGBA color, into image of any color type*/ -static unsigned rgba8ToPixel(unsigned char* out, size_t i, - const LodePNGColorMode* mode, ColorTree* tree /*for palette*/, - unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - if(mode->colortype == LCT_GREY) - { - unsigned char grey = r; /*((unsigned short)r + g + b) / 3*/; - if(mode->bitdepth == 8) out[i] = grey; - else if(mode->bitdepth == 16) out[i * 2 + 0] = out[i * 2 + 1] = grey; - else - { - /*take the most significant bits of grey*/ - grey = (grey >> (8 - mode->bitdepth)) & ((1 << mode->bitdepth) - 1); - addColorBits(out, i, mode->bitdepth, grey); - } - } - else if(mode->colortype == LCT_RGB) - { - if(mode->bitdepth == 8) - { - out[i * 3 + 0] = r; - out[i * 3 + 1] = g; - out[i * 3 + 2] = b; - } - else - { - out[i * 6 + 0] = out[i * 6 + 1] = r; - out[i * 6 + 2] = out[i * 6 + 3] = g; - out[i * 6 + 4] = out[i * 6 + 5] = b; - } - } - else if(mode->colortype == LCT_PALETTE) - { - int index = color_tree_get(tree, r, g, b, a); - if(index < 0) return 82; /*color not in palette*/ - if(mode->bitdepth == 8) out[i] = index; - else addColorBits(out, i, mode->bitdepth, (unsigned)index); - } - else if(mode->colortype == LCT_GREY_ALPHA) - { - unsigned char grey = r; /*((unsigned short)r + g + b) / 3*/; - if(mode->bitdepth == 8) - { - out[i * 2 + 0] = grey; - out[i * 2 + 1] = a; - } - else if(mode->bitdepth == 16) - { - out[i * 4 + 0] = out[i * 4 + 1] = grey; - out[i * 4 + 2] = out[i * 4 + 3] = a; - } - } - else if(mode->colortype == LCT_RGBA) - { - if(mode->bitdepth == 8) - { - out[i * 4 + 0] = r; - out[i * 4 + 1] = g; - out[i * 4 + 2] = b; - out[i * 4 + 3] = a; - } - else - { - out[i * 8 + 0] = out[i * 8 + 1] = r; - out[i * 8 + 2] = out[i * 8 + 3] = g; - out[i * 8 + 4] = out[i * 8 + 5] = b; - out[i * 8 + 6] = out[i * 8 + 7] = a; - } - } - - return 0; /*no error*/ -} - -/*put a pixel, given its RGBA16 color, into image of any color 16-bitdepth type*/ -static void rgba16ToPixel(unsigned char* out, size_t i, - const LodePNGColorMode* mode, - unsigned short r, unsigned short g, unsigned short b, unsigned short a) -{ - if(mode->colortype == LCT_GREY) - { - unsigned short grey = r; /*((unsigned)r + g + b) / 3*/; - out[i * 2 + 0] = (grey >> 8) & 255; - out[i * 2 + 1] = grey & 255; - } - else if(mode->colortype == LCT_RGB) - { - out[i * 6 + 0] = (r >> 8) & 255; - out[i * 6 + 1] = r & 255; - out[i * 6 + 2] = (g >> 8) & 255; - out[i * 6 + 3] = g & 255; - out[i * 6 + 4] = (b >> 8) & 255; - out[i * 6 + 5] = b & 255; - } - else if(mode->colortype == LCT_GREY_ALPHA) - { - unsigned short grey = r; /*((unsigned)r + g + b) / 3*/; - out[i * 4 + 0] = (grey >> 8) & 255; - out[i * 4 + 1] = grey & 255; - out[i * 4 + 2] = (a >> 8) & 255; - out[i * 4 + 3] = a & 255; - } - else if(mode->colortype == LCT_RGBA) - { - out[i * 8 + 0] = (r >> 8) & 255; - out[i * 8 + 1] = r & 255; - out[i * 8 + 2] = (g >> 8) & 255; - out[i * 8 + 3] = g & 255; - out[i * 8 + 4] = (b >> 8) & 255; - out[i * 8 + 5] = b & 255; - out[i * 8 + 6] = (a >> 8) & 255; - out[i * 8 + 7] = a & 255; - } -} - -/*Get RGBA8 color of pixel with index i (y * width + x) from the raw image with given color type.*/ -static void getPixelColorRGBA8(unsigned char* r, unsigned char* g, - unsigned char* b, unsigned char* a, - const unsigned char* in, size_t i, - const LodePNGColorMode* mode) -{ - if(mode->colortype == LCT_GREY) - { - if(mode->bitdepth == 8) - { - *r = *g = *b = in[i]; - if(mode->key_defined && *r == mode->key_r) *a = 0; - else *a = 255; - } - else if(mode->bitdepth == 16) - { - *r = *g = *b = in[i * 2 + 0]; - if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0; - else *a = 255; - } - else - { - unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/ - size_t j = i * mode->bitdepth; - unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth); - *r = *g = *b = (value * 255) / highest; - if(mode->key_defined && value == mode->key_r) *a = 0; - else *a = 255; - } - } - else if(mode->colortype == LCT_RGB) - { - if(mode->bitdepth == 8) - { - *r = in[i * 3 + 0]; *g = in[i * 3 + 1]; *b = in[i * 3 + 2]; - if(mode->key_defined && *r == mode->key_r && *g == mode->key_g && *b == mode->key_b) *a = 0; - else *a = 255; - } - else - { - *r = in[i * 6 + 0]; - *g = in[i * 6 + 2]; - *b = in[i * 6 + 4]; - if(mode->key_defined && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0; - else *a = 255; - } - } - else if(mode->colortype == LCT_PALETTE) - { - unsigned index; - if(mode->bitdepth == 8) index = in[i]; - else - { - size_t j = i * mode->bitdepth; - index = readBitsFromReversedStream(&j, in, mode->bitdepth); - } - - if(index >= mode->palettesize) - { - /*This is an error according to the PNG spec, but common PNG decoders make it black instead. - Done here too, slightly faster due to no error handling needed.*/ - *r = *g = *b = 0; - *a = 255; - } - else - { - *r = mode->palette[index * 4 + 0]; - *g = mode->palette[index * 4 + 1]; - *b = mode->palette[index * 4 + 2]; - *a = mode->palette[index * 4 + 3]; - } - } - else if(mode->colortype == LCT_GREY_ALPHA) - { - if(mode->bitdepth == 8) - { - *r = *g = *b = in[i * 2 + 0]; - *a = in[i * 2 + 1]; - } - else - { - *r = *g = *b = in[i * 4 + 0]; - *a = in[i * 4 + 2]; - } - } - else if(mode->colortype == LCT_RGBA) - { - if(mode->bitdepth == 8) - { - *r = in[i * 4 + 0]; - *g = in[i * 4 + 1]; - *b = in[i * 4 + 2]; - *a = in[i * 4 + 3]; - } - else - { - *r = in[i * 8 + 0]; - *g = in[i * 8 + 2]; - *b = in[i * 8 + 4]; - *a = in[i * 8 + 6]; - } - } -} - -/*Similar to getPixelColorRGBA8, but with all the for loops inside of the color -mode test cases, optimized to convert the colors much faster, when converting -to RGBA or RGB with 8 bit per cannel. buffer must be RGBA or RGB output with -enough memory, if has_alpha is true the output is RGBA. mode has the color mode -of the input buffer.*/ -static void getPixelColorsRGBA8(unsigned char* buffer, size_t numpixels, - unsigned has_alpha, const unsigned char* in, - const LodePNGColorMode* mode) -{ - unsigned num_channels = has_alpha ? 4 : 3; - size_t i; - if(mode->colortype == LCT_GREY) - { - if(mode->bitdepth == 8) - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = buffer[1] = buffer[2] = in[i]; - if(has_alpha) buffer[3] = mode->key_defined && in[i] == mode->key_r ? 0 : 255; - } - } - else if(mode->bitdepth == 16) - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = buffer[1] = buffer[2] = in[i * 2]; - if(has_alpha) buffer[3] = mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r ? 0 : 255; - } - } - else - { - unsigned highest = ((1U << mode->bitdepth) - 1U); /*highest possible value for this bit depth*/ - size_t j = 0; - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - unsigned value = readBitsFromReversedStream(&j, in, mode->bitdepth); - buffer[0] = buffer[1] = buffer[2] = (value * 255) / highest; - if(has_alpha) buffer[3] = mode->key_defined && value == mode->key_r ? 0 : 255; - } - } - } - else if(mode->colortype == LCT_RGB) - { - if(mode->bitdepth == 8) - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = in[i * 3 + 0]; - buffer[1] = in[i * 3 + 1]; - buffer[2] = in[i * 3 + 2]; - if(has_alpha) buffer[3] = mode->key_defined && buffer[0] == mode->key_r - && buffer[1]== mode->key_g && buffer[2] == mode->key_b ? 0 : 255; - } - } - else - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = in[i * 6 + 0]; - buffer[1] = in[i * 6 + 2]; - buffer[2] = in[i * 6 + 4]; - if(has_alpha) buffer[3] = mode->key_defined - && 256U * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256U * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256U * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b ? 0 : 255; - } - } - } - else if(mode->colortype == LCT_PALETTE) - { - unsigned index; - size_t j = 0; - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - if(mode->bitdepth == 8) index = in[i]; - else index = readBitsFromReversedStream(&j, in, mode->bitdepth); - - if(index >= mode->palettesize) - { - /*This is an error according to the PNG spec, but most PNG decoders make it black instead. - Done here too, slightly faster due to no error handling needed.*/ - buffer[0] = buffer[1] = buffer[2] = 0; - if(has_alpha) buffer[3] = 255; - } - else - { - buffer[0] = mode->palette[index * 4 + 0]; - buffer[1] = mode->palette[index * 4 + 1]; - buffer[2] = mode->palette[index * 4 + 2]; - if(has_alpha) buffer[3] = mode->palette[index * 4 + 3]; - } - } - } - else if(mode->colortype == LCT_GREY_ALPHA) - { - if(mode->bitdepth == 8) - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = buffer[1] = buffer[2] = in[i * 2 + 0]; - if(has_alpha) buffer[3] = in[i * 2 + 1]; - } - } - else - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = buffer[1] = buffer[2] = in[i * 4 + 0]; - if(has_alpha) buffer[3] = in[i * 4 + 2]; - } - } - } - else if(mode->colortype == LCT_RGBA) - { - if(mode->bitdepth == 8) - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = in[i * 4 + 0]; - buffer[1] = in[i * 4 + 1]; - buffer[2] = in[i * 4 + 2]; - if(has_alpha) buffer[3] = in[i * 4 + 3]; - } - } - else - { - for(i = 0; i != numpixels; ++i, buffer += num_channels) - { - buffer[0] = in[i * 8 + 0]; - buffer[1] = in[i * 8 + 2]; - buffer[2] = in[i * 8 + 4]; - if(has_alpha) buffer[3] = in[i * 8 + 6]; - } - } - } -} - -/*Get RGBA16 color of pixel with index i (y * width + x) from the raw image with -given color type, but the given color type must be 16-bit itself.*/ -static void getPixelColorRGBA16(unsigned short* r, unsigned short* g, unsigned short* b, unsigned short* a, - const unsigned char* in, size_t i, const LodePNGColorMode* mode) -{ - if(mode->colortype == LCT_GREY) - { - *r = *g = *b = 256 * in[i * 2 + 0] + in[i * 2 + 1]; - if(mode->key_defined && 256U * in[i * 2 + 0] + in[i * 2 + 1] == mode->key_r) *a = 0; - else *a = 65535; - } - else if(mode->colortype == LCT_RGB) - { - *r = 256u * in[i * 6 + 0] + in[i * 6 + 1]; - *g = 256u * in[i * 6 + 2] + in[i * 6 + 3]; - *b = 256u * in[i * 6 + 4] + in[i * 6 + 5]; - if(mode->key_defined - && 256u * in[i * 6 + 0] + in[i * 6 + 1] == mode->key_r - && 256u * in[i * 6 + 2] + in[i * 6 + 3] == mode->key_g - && 256u * in[i * 6 + 4] + in[i * 6 + 5] == mode->key_b) *a = 0; - else *a = 65535; - } - else if(mode->colortype == LCT_GREY_ALPHA) - { - *r = *g = *b = 256u * in[i * 4 + 0] + in[i * 4 + 1]; - *a = 256u * in[i * 4 + 2] + in[i * 4 + 3]; - } - else if(mode->colortype == LCT_RGBA) - { - *r = 256u * in[i * 8 + 0] + in[i * 8 + 1]; - *g = 256u * in[i * 8 + 2] + in[i * 8 + 3]; - *b = 256u * in[i * 8 + 4] + in[i * 8 + 5]; - *a = 256u * in[i * 8 + 6] + in[i * 8 + 7]; - } -} - -unsigned lodepng_convert(unsigned char* out, const unsigned char* in, - const LodePNGColorMode* mode_out, const LodePNGColorMode* mode_in, - unsigned w, unsigned h) -{ - size_t i; - ColorTree tree; - size_t numpixels = w * h; - - if(lodepng_color_mode_equal(mode_out, mode_in)) - { - size_t numbytes = lodepng_get_raw_size(w, h, mode_in); - for(i = 0; i != numbytes; ++i) out[i] = in[i]; - return 0; - } - - if(mode_out->colortype == LCT_PALETTE) - { - size_t palettesize = mode_out->palettesize; - const unsigned char* palette = mode_out->palette; - size_t palsize = 1u << mode_out->bitdepth; - /*if the user specified output palette but did not give the values, assume - they want the values of the input color type (assuming that one is palette). - Note that we never create a new palette ourselves.*/ - if(palettesize == 0) - { - palettesize = mode_in->palettesize; - palette = mode_in->palette; - } - if(palettesize < palsize) palsize = palettesize; - color_tree_init(&tree); - for(i = 0; i != palsize; ++i) - { - const unsigned char* p = &palette[i * 4]; - color_tree_add(&tree, p[0], p[1], p[2], p[3], i); - } - } - - if(mode_in->bitdepth == 16 && mode_out->bitdepth == 16) - { - for(i = 0; i != numpixels; ++i) - { - unsigned short r = 0, g = 0, b = 0, a = 0; - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode_in); - rgba16ToPixel(out, i, mode_out, r, g, b, a); - } - } - else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGBA) - { - getPixelColorsRGBA8(out, numpixels, 1, in, mode_in); - } - else if(mode_out->bitdepth == 8 && mode_out->colortype == LCT_RGB) - { - getPixelColorsRGBA8(out, numpixels, 0, in, mode_in); - } - else - { - unsigned char r = 0, g = 0, b = 0, a = 0; - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode_in); - CERROR_TRY_RETURN(rgba8ToPixel(out, i, mode_out, &tree, r, g, b, a)); - } - } - - if(mode_out->colortype == LCT_PALETTE) - { - color_tree_cleanup(&tree); - } - - return 0; /*no error*/ -} - -#ifdef LODEPNG_COMPILE_ENCODER - -void lodepng_color_profile_init(LodePNGColorProfile* profile) -{ - profile->colored = 0; - profile->key = 0; - profile->key_r = profile->key_g = profile->key_b = 0; - profile->alpha = 0; - profile->numcolors = 0; - profile->bits = 1; -} - -/*function used for debug purposes with C++*/ -/*void printColorProfile(LodePNGColorProfile* p) -{ - std::cout << "colored: " << (int)p->colored << ", "; - std::cout << "key: " << (int)p->key << ", "; - std::cout << "key_r: " << (int)p->key_r << ", "; - std::cout << "key_g: " << (int)p->key_g << ", "; - std::cout << "key_b: " << (int)p->key_b << ", "; - std::cout << "alpha: " << (int)p->alpha << ", "; - std::cout << "numcolors: " << (int)p->numcolors << ", "; - std::cout << "bits: " << (int)p->bits << std::endl; -}*/ - -/*Returns how many bits needed to represent given value (max 8 bit)*/ -static unsigned getValueRequiredBits(unsigned char value) -{ - if(value == 0 || value == 255) return 1; - /*The scaling of 2-bit and 4-bit values uses multiples of 85 and 17*/ - if(value % 17 == 0) return value % 85 == 0 ? 2 : 4; - return 8; -} - -/*profile must already have been inited with mode. -It's ok to set some parameters of profile to done already.*/ -unsigned lodepng_get_color_profile(LodePNGColorProfile* profile, - const unsigned char* in, unsigned w, unsigned h, - const LodePNGColorMode* mode) -{ - unsigned error = 0; - size_t i; - ColorTree tree; - size_t numpixels = w * h; - - unsigned colored_done = lodepng_is_greyscale_type(mode) ? 1 : 0; - unsigned alpha_done = lodepng_can_have_alpha(mode) ? 0 : 1; - unsigned numcolors_done = 0; - unsigned bpp = lodepng_get_bpp(mode); - unsigned bits_done = bpp == 1 ? 1 : 0; - unsigned maxnumcolors = 257; - unsigned sixteen = 0; - if(bpp <= 8) maxnumcolors = bpp == 1 ? 2 : (bpp == 2 ? 4 : (bpp == 4 ? 16 : 256)); - - color_tree_init(&tree); - - /*Check if the 16-bit input is truly 16-bit*/ - if(mode->bitdepth == 16) - { - unsigned short r, g, b, a; - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode); - if((r & 255) != ((r >> 8) & 255) || (g & 255) != ((g >> 8) & 255) || - (b & 255) != ((b >> 8) & 255) || (a & 255) != ((a >> 8) & 255)) /*first and second byte differ*/ - { - sixteen = 1; - break; - } - } - } - - if(sixteen) - { - unsigned short r = 0, g = 0, b = 0, a = 0; - profile->bits = 16; - bits_done = numcolors_done = 1; /*counting colors no longer useful, palette doesn't support 16-bit*/ - - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode); - - if(!colored_done && (r != g || r != b)) - { - profile->colored = 1; - colored_done = 1; - } - - if(!alpha_done) - { - unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b); - if(a != 65535 && (a != 0 || (profile->key && !matchkey))) - { - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } - else if(a == 0 && !profile->alpha && !profile->key) - { - profile->key = 1; - profile->key_r = r; - profile->key_g = g; - profile->key_b = b; - } - else if(a == 65535 && profile->key && matchkey) - { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } - } - if(alpha_done && numcolors_done && colored_done && bits_done) break; - } - - if(profile->key && !profile->alpha) - { - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA16(&r, &g, &b, &a, in, i, mode); - if(a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) - { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - } - } - } - } - else /* < 16-bit */ - { - unsigned char r = 0, g = 0, b = 0, a = 0; - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode); - - if(!bits_done && profile->bits < 8) - { - /*only r is checked, < 8 bits is only relevant for greyscale*/ - unsigned bits = getValueRequiredBits(r); - if(bits > profile->bits) profile->bits = bits; - } - bits_done = (profile->bits >= bpp); - - if(!colored_done && (r != g || r != b)) - { - profile->colored = 1; - colored_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no colored modes with less than 8-bit per channel*/ - } - - if(!alpha_done) - { - unsigned matchkey = (r == profile->key_r && g == profile->key_g && b == profile->key_b); - if(a != 255 && (a != 0 || (profile->key && !matchkey))) - { - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - else if(a == 0 && !profile->alpha && !profile->key) - { - profile->key = 1; - profile->key_r = r; - profile->key_g = g; - profile->key_b = b; - } - else if(a == 255 && profile->key && matchkey) - { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - } - - if(!numcolors_done) - { - if(!color_tree_has(&tree, r, g, b, a)) - { - color_tree_add(&tree, r, g, b, a, profile->numcolors); - if(profile->numcolors < 256) - { - unsigned char* p = profile->palette; - unsigned n = profile->numcolors; - p[n * 4 + 0] = r; - p[n * 4 + 1] = g; - p[n * 4 + 2] = b; - p[n * 4 + 3] = a; - } - ++profile->numcolors; - numcolors_done = profile->numcolors >= maxnumcolors; - } - } - - if(alpha_done && numcolors_done && colored_done && bits_done) break; - } - - if(profile->key && !profile->alpha) - { - for(i = 0; i != numpixels; ++i) - { - getPixelColorRGBA8(&r, &g, &b, &a, in, i, mode); - if(a != 0 && r == profile->key_r && g == profile->key_g && b == profile->key_b) - { - /* Color key cannot be used if an opaque pixel also has that RGB color. */ - profile->alpha = 1; - profile->key = 0; - alpha_done = 1; - if(profile->bits < 8) profile->bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - } - } - - /*make the profile's key always 16-bit for consistency - repeat each byte twice*/ - profile->key_r += (profile->key_r << 8); - profile->key_g += (profile->key_g << 8); - profile->key_b += (profile->key_b << 8); - } - - color_tree_cleanup(&tree); - return error; -} - -/*Automatically chooses color type that gives smallest amount of bits in the -output image, e.g. grey if there are only greyscale pixels, palette if there -are less than 256 colors, ... -Updates values of mode with a potentially smaller color model. mode_out should -contain the user chosen color model, but will be overwritten with the new chosen one.*/ -unsigned lodepng_auto_choose_color(LodePNGColorMode* mode_out, - const unsigned char* image, unsigned w, unsigned h, - const LodePNGColorMode* mode_in) -{ - LodePNGColorProfile prof; - unsigned error = 0; - unsigned i, n, palettebits, palette_ok; - - lodepng_color_profile_init(&prof); - error = lodepng_get_color_profile(&prof, image, w, h, mode_in); - if(error) return error; - mode_out->key_defined = 0; - - if(prof.key && w * h <= 16) - { - prof.alpha = 1; /*too few pixels to justify tRNS chunk overhead*/ - prof.key = 0; - if(prof.bits < 8) prof.bits = 8; /*PNG has no alphachannel modes with less than 8-bit per channel*/ - } - n = prof.numcolors; - palettebits = n <= 2 ? 1 : (n <= 4 ? 2 : (n <= 16 ? 4 : 8)); - palette_ok = n <= 256 && prof.bits <= 8; - if(w * h < n * 2) palette_ok = 0; /*don't add palette overhead if image has only a few pixels*/ - if(!prof.colored && prof.bits <= palettebits) palette_ok = 0; /*grey is less overhead*/ - - if(palette_ok) - { - unsigned char* p = prof.palette; - lodepng_palette_clear(mode_out); /*remove potential earlier palette*/ - for(i = 0; i != prof.numcolors; ++i) - { - error = lodepng_palette_add(mode_out, p[i * 4 + 0], p[i * 4 + 1], p[i * 4 + 2], p[i * 4 + 3]); - if(error) break; - } - - mode_out->colortype = LCT_PALETTE; - mode_out->bitdepth = palettebits; - - if(mode_in->colortype == LCT_PALETTE && mode_in->palettesize >= mode_out->palettesize - && mode_in->bitdepth == mode_out->bitdepth) - { - /*If input should have same palette colors, keep original to preserve its order and prevent conversion*/ - lodepng_color_mode_cleanup(mode_out); - lodepng_color_mode_copy(mode_out, mode_in); - } - } - else /*8-bit or 16-bit per channel*/ - { - mode_out->bitdepth = prof.bits; - mode_out->colortype = prof.alpha ? (prof.colored ? LCT_RGBA : LCT_GREY_ALPHA) - : (prof.colored ? LCT_RGB : LCT_GREY); - - if(prof.key) - { - unsigned mask = (1u << mode_out->bitdepth) - 1u; /*profile always uses 16-bit, mask converts it*/ - mode_out->key_r = prof.key_r & mask; - mode_out->key_g = prof.key_g & mask; - mode_out->key_b = prof.key_b & mask; - mode_out->key_defined = 1; - } - } - - return error; -} - -#endif /* #ifdef LODEPNG_COMPILE_ENCODER */ - -/* -Paeth predicter, used by PNG filter type 4 -The parameters are of type short, but should come from unsigned chars, the shorts -are only needed to make the paeth calculation correct. -*/ -static unsigned char paethPredictor(short a, short b, short c) -{ - short pa = abs(b - c); - short pb = abs(a - c); - short pc = abs(a + b - c - c); - - if(pc < pa && pc < pb) return (unsigned char)c; - else if(pb < pa) return (unsigned char)b; - else return (unsigned char)a; -} - -/*shared values used by multiple Adam7 related functions*/ - -static const unsigned ADAM7_IX[7] = { 0, 4, 0, 2, 0, 1, 0 }; /*x start values*/ -static const unsigned ADAM7_IY[7] = { 0, 0, 4, 0, 2, 0, 1 }; /*y start values*/ -static const unsigned ADAM7_DX[7] = { 8, 8, 4, 4, 2, 2, 1 }; /*x delta values*/ -static const unsigned ADAM7_DY[7] = { 8, 8, 8, 4, 4, 2, 2 }; /*y delta values*/ - -/* -Outputs various dimensions and positions in the image related to the Adam7 reduced images. -passw: output containing the width of the 7 passes -passh: output containing the height of the 7 passes -filter_passstart: output containing the index of the start and end of each - reduced image with filter bytes -padded_passstart output containing the index of the start and end of each - reduced image when without filter bytes but with padded scanlines -passstart: output containing the index of the start and end of each reduced - image without padding between scanlines, but still padding between the images -w, h: width and height of non-interlaced image -bpp: bits per pixel -"padded" is only relevant if bpp is less than 8 and a scanline or image does not - end at a full byte -*/ -static void Adam7_getpassvalues(unsigned passw[7], unsigned passh[7], size_t filter_passstart[8], - size_t padded_passstart[8], size_t passstart[8], unsigned w, unsigned h, unsigned bpp) -{ - /*the passstart values have 8 values: the 8th one indicates the byte after the end of the 7th (= last) pass*/ - unsigned i; - - /*calculate width and height in pixels of each pass*/ - for(i = 0; i != 7; ++i) - { - passw[i] = (w + ADAM7_DX[i] - ADAM7_IX[i] - 1) / ADAM7_DX[i]; - passh[i] = (h + ADAM7_DY[i] - ADAM7_IY[i] - 1) / ADAM7_DY[i]; - if(passw[i] == 0) passh[i] = 0; - if(passh[i] == 0) passw[i] = 0; - } - - filter_passstart[0] = padded_passstart[0] = passstart[0] = 0; - for(i = 0; i != 7; ++i) - { - /*if passw[i] is 0, it's 0 bytes, not 1 (no filtertype-byte)*/ - filter_passstart[i + 1] = filter_passstart[i] - + ((passw[i] && passh[i]) ? passh[i] * (1 + (passw[i] * bpp + 7) / 8) : 0); - /*bits padded if needed to fill full byte at end of each scanline*/ - padded_passstart[i + 1] = padded_passstart[i] + passh[i] * ((passw[i] * bpp + 7) / 8); - /*only padded at end of reduced image*/ - passstart[i + 1] = passstart[i] + (passh[i] * passw[i] * bpp + 7) / 8; - } -} - -#ifdef LODEPNG_COMPILE_DECODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG Decoder / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*read the information from the header and store it in the LodePNGInfo. return value is error*/ -unsigned lodepng_inspect(unsigned* w, unsigned* h, LodePNGState* state, - const unsigned char* in, size_t insize) -{ - LodePNGInfo* info = &state->info_png; - if(insize == 0 || in == 0) - { - CERROR_RETURN_ERROR(state->error, 48); /*error: the given data is empty*/ - } - if(insize < 33) - { - CERROR_RETURN_ERROR(state->error, 27); /*error: the data length is smaller than the length of a PNG header*/ - } - - /*when decoding a new PNG image, make sure all parameters created after previous decoding are reset*/ - lodepng_info_cleanup(info); - lodepng_info_init(info); - - if(in[0] != 137 || in[1] != 80 || in[2] != 78 || in[3] != 71 - || in[4] != 13 || in[5] != 10 || in[6] != 26 || in[7] != 10) - { - CERROR_RETURN_ERROR(state->error, 28); /*error: the first 8 bytes are not the correct PNG signature*/ - } - if(lodepng_chunk_length(in + 8) != 13) - { - CERROR_RETURN_ERROR(state->error, 94); /*error: header size must be 13 bytes*/ - } - if(!lodepng_chunk_type_equals(in + 8, "IHDR")) - { - CERROR_RETURN_ERROR(state->error, 29); /*error: it doesn't start with a IHDR chunk!*/ - } - - /*read the values given in the header*/ - *w = lodepng_read32bitInt(&in[16]); - *h = lodepng_read32bitInt(&in[20]); - info->color.bitdepth = in[24]; - info->color.colortype = (LodePNGColorType)in[25]; - info->compression_method = in[26]; - info->filter_method = in[27]; - info->interlace_method = in[28]; - - if(*w == 0 || *h == 0) - { - CERROR_RETURN_ERROR(state->error, 93); - } - - if(!state->decoder.ignore_crc) - { - unsigned CRC = lodepng_read32bitInt(&in[29]); - unsigned checksum = lodepng_crc32(&in[12], 17); - if(CRC != checksum) - { - CERROR_RETURN_ERROR(state->error, 57); /*invalid CRC*/ - } - } - - /*error: only compression method 0 is allowed in the specification*/ - if(info->compression_method != 0) CERROR_RETURN_ERROR(state->error, 32); - /*error: only filter method 0 is allowed in the specification*/ - if(info->filter_method != 0) CERROR_RETURN_ERROR(state->error, 33); - /*error: only interlace methods 0 and 1 exist in the specification*/ - if(info->interlace_method > 1) CERROR_RETURN_ERROR(state->error, 34); - - state->error = checkColorValidity(info->color.colortype, info->color.bitdepth); - return state->error; -} - -static unsigned unfilterScanline(unsigned char* recon, const unsigned char* scanline, const unsigned char* precon, - size_t bytewidth, unsigned char filterType, size_t length) -{ - /* - For PNG filter method 0 - unfilter a PNG image scanline by scanline. when the pixels are smaller than 1 byte, - the filter works byte per byte (bytewidth = 1) - precon is the previous unfiltered scanline, recon the result, scanline the current one - the incoming scanlines do NOT include the filtertype byte, that one is given in the parameter filterType instead - recon and scanline MAY be the same memory address! precon must be disjoint. - */ - - size_t i; - switch(filterType) - { - case 0: - for(i = 0; i != length; ++i) recon[i] = scanline[i]; - break; - case 1: - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + recon[i - bytewidth]; - break; - case 2: - if(precon) - { - for(i = 0; i != length; ++i) recon[i] = scanline[i] + precon[i]; - } - else - { - for(i = 0; i != length; ++i) recon[i] = scanline[i]; - } - break; - case 3: - if(precon) - { - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i] + (precon[i] >> 1); - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + ((recon[i - bytewidth] + precon[i]) >> 1); - } - else - { - for(i = 0; i != bytewidth; ++i) recon[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) recon[i] = scanline[i] + (recon[i - bytewidth] >> 1); - } - break; - case 4: - if(precon) - { - for(i = 0; i != bytewidth; ++i) - { - recon[i] = (scanline[i] + precon[i]); /*paethPredictor(0, precon[i], 0) is always precon[i]*/ - } - for(i = bytewidth; i < length; ++i) - { - recon[i] = (scanline[i] + paethPredictor(recon[i - bytewidth], precon[i], precon[i - bytewidth])); - } - } - else - { - for(i = 0; i != bytewidth; ++i) - { - recon[i] = scanline[i]; - } - for(i = bytewidth; i < length; ++i) - { - /*paethPredictor(recon[i - bytewidth], 0, 0) is always recon[i - bytewidth]*/ - recon[i] = (scanline[i] + recon[i - bytewidth]); - } - } - break; - default: return 36; /*error: unexisting filter type given*/ - } - return 0; -} - -static unsigned unfilter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) -{ - /* - For PNG filter method 0 - this function unfilters a single image (e.g. without interlacing this is called once, with Adam7 seven times) - out must have enough bytes allocated already, in must have the scanlines + 1 filtertype byte per scanline - w and h are image dimensions or dimensions of reduced image, bpp is bits per pixel - in and out are allowed to be the same memory address (but aren't the same size since in has the extra filter bytes) - */ - - unsigned y; - unsigned char* prevline = 0; - - /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/ - size_t bytewidth = (bpp + 7) / 8; - size_t linebytes = (w * bpp + 7) / 8; - - for(y = 0; y < h; ++y) - { - size_t outindex = linebytes * y; - size_t inindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - unsigned char filterType = in[inindex]; - - CERROR_TRY_RETURN(unfilterScanline(&out[outindex], &in[inindex + 1], prevline, bytewidth, filterType, linebytes)); - - prevline = &out[outindex]; - } - - return 0; -} - -/* -in: Adam7 interlaced image, with no padding bits between scanlines, but between - reduced images so that each reduced image starts at a byte. -out: the same pixels, but re-ordered so that they're now a non-interlaced image with size w*h -bpp: bits per pixel -out has the following size in bits: w * h * bpp. -in is possibly bigger due to padding bits between reduced images. -out must be big enough AND must be 0 everywhere if bpp < 8 in the current implementation -(because that's likely a little bit faster) -NOTE: comments about padding bits are only relevant if bpp < 8 -*/ -static void Adam7_deinterlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) -{ - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - if(bpp >= 8) - { - for(i = 0; i != 7; ++i) - { - unsigned x, y, b; - size_t bytewidth = bpp / 8; - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) - { - size_t pixelinstart = passstart[i] + (y * passw[i] + x) * bytewidth; - size_t pixeloutstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth; - for(b = 0; b < bytewidth; ++b) - { - out[pixeloutstart + b] = in[pixelinstart + b]; - } - } - } - } - else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/ - { - for(i = 0; i != 7; ++i) - { - unsigned x, y, b; - unsigned ilinebits = bpp * passw[i]; - unsigned olinebits = bpp * w; - size_t obp, ibp; /*bit pointers (for out and in buffer)*/ - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) - { - ibp = (8 * passstart[i]) + (y * ilinebits + x * bpp); - obp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp; - for(b = 0; b < bpp; ++b) - { - unsigned char bit = readBitFromReversedStream(&ibp, in); - /*note that this function assumes the out buffer is completely 0, use setBitOfReversedStream otherwise*/ - setBitOfReversedStream0(&obp, out, bit); - } - } - } - } -} - -static void removePaddingBits(unsigned char* out, const unsigned char* in, - size_t olinebits, size_t ilinebits, unsigned h) -{ - /* - After filtering there are still padding bits if scanlines have non multiple of 8 bit amounts. They need - to be removed (except at last scanline of (Adam7-reduced) image) before working with pure image buffers - for the Adam7 code, the color convert code and the output to the user. - in and out are allowed to be the same buffer, in may also be higher but still overlapping; in must - have >= ilinebits*h bits, out must have >= olinebits*h bits, olinebits must be <= ilinebits - also used to move bits after earlier such operations happened, e.g. in a sequence of reduced images from Adam7 - only useful if (ilinebits - olinebits) is a value in the range 1..7 - */ - unsigned y; - size_t diff = ilinebits - olinebits; - size_t ibp = 0, obp = 0; /*input and output bit pointers*/ - for(y = 0; y < h; ++y) - { - size_t x; - for(x = 0; x < olinebits; ++x) - { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - ibp += diff; - } -} - -/*out must be buffer big enough to contain full image, and in must contain the full decompressed data from -the IDAT chunks (with filter index bytes and possible padding bits) -return value is error*/ -static unsigned postProcessScanlines(unsigned char* out, unsigned char* in, - unsigned w, unsigned h, const LodePNGInfo* info_png) -{ - /* - This function converts the filtered-padded-interlaced data into pure 2D image buffer with the PNG's colortype. - Steps: - *) if no Adam7: 1) unfilter 2) remove padding bits (= posible extra bits per scanline if bpp < 8) - *) if adam7: 1) 7x unfilter 2) 7x remove padding bits 3) Adam7_deinterlace - NOTE: the in buffer will be overwritten with intermediate data! - */ - unsigned bpp = lodepng_get_bpp(&info_png->color); - if(bpp == 0) return 31; /*error: invalid colortype*/ - - if(info_png->interlace_method == 0) - { - if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) - { - CERROR_TRY_RETURN(unfilter(in, in, w, h, bpp)); - removePaddingBits(out, in, w * bpp, ((w * bpp + 7) / 8) * 8, h); - } - /*we can immediately filter into the out buffer, no other steps needed*/ - else CERROR_TRY_RETURN(unfilter(out, in, w, h, bpp)); - } - else /*interlace_method is 1 (Adam7)*/ - { - unsigned passw[7], passh[7]; size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - for(i = 0; i != 7; ++i) - { - CERROR_TRY_RETURN(unfilter(&in[padded_passstart[i]], &in[filter_passstart[i]], passw[i], passh[i], bpp)); - /*TODO: possible efficiency improvement: if in this reduced image the bits fit nicely in 1 scanline, - move bytes instead of bits or move not at all*/ - if(bpp < 8) - { - /*remove padding bits in scanlines; after this there still may be padding - bits between the different reduced images: each reduced image still starts nicely at a byte*/ - removePaddingBits(&in[passstart[i]], &in[padded_passstart[i]], passw[i] * bpp, - ((passw[i] * bpp + 7) / 8) * 8, passh[i]); - } - } - - Adam7_deinterlace(out, in, w, h, bpp); - } - - return 0; -} - -static unsigned readChunk_PLTE(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength) -{ - unsigned pos = 0, i; - if(color->palette) lodepng_free(color->palette); - color->palettesize = chunkLength / 3; - color->palette = (unsigned char*)lodepng_malloc(4 * color->palettesize); - if(!color->palette && color->palettesize) - { - color->palettesize = 0; - return 83; /*alloc fail*/ - } - if(color->palettesize > 256) return 38; /*error: palette too big*/ - - for(i = 0; i != color->palettesize; ++i) - { - color->palette[4 * i + 0] = data[pos++]; /*R*/ - color->palette[4 * i + 1] = data[pos++]; /*G*/ - color->palette[4 * i + 2] = data[pos++]; /*B*/ - color->palette[4 * i + 3] = 255; /*alpha*/ - } - - return 0; /* OK */ -} - -static unsigned readChunk_tRNS(LodePNGColorMode* color, const unsigned char* data, size_t chunkLength) -{ - unsigned i; - if(color->colortype == LCT_PALETTE) - { - /*error: more alpha values given than there are palette entries*/ - if(chunkLength > color->palettesize) return 38; - - for(i = 0; i != chunkLength; ++i) color->palette[4 * i + 3] = data[i]; - } - else if(color->colortype == LCT_GREY) - { - /*error: this chunk must be 2 bytes for greyscale image*/ - if(chunkLength != 2) return 30; - - color->key_defined = 1; - color->key_r = color->key_g = color->key_b = 256u * data[0] + data[1]; - } - else if(color->colortype == LCT_RGB) - { - /*error: this chunk must be 6 bytes for RGB image*/ - if(chunkLength != 6) return 41; - - color->key_defined = 1; - color->key_r = 256u * data[0] + data[1]; - color->key_g = 256u * data[2] + data[3]; - color->key_b = 256u * data[4] + data[5]; - } - else return 42; /*error: tRNS chunk not allowed for other color models*/ - - return 0; /* OK */ -} - - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -/*background color chunk (bKGD)*/ -static unsigned readChunk_bKGD(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) -{ - if(info->color.colortype == LCT_PALETTE) - { - /*error: this chunk must be 1 byte for indexed color image*/ - if(chunkLength != 1) return 43; - - info->background_defined = 1; - info->background_r = info->background_g = info->background_b = data[0]; - } - else if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) - { - /*error: this chunk must be 2 bytes for greyscale image*/ - if(chunkLength != 2) return 44; - - info->background_defined = 1; - info->background_r = info->background_g = info->background_b = 256u * data[0] + data[1]; - } - else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) - { - /*error: this chunk must be 6 bytes for greyscale image*/ - if(chunkLength != 6) return 45; - - info->background_defined = 1; - info->background_r = 256u * data[0] + data[1]; - info->background_g = 256u * data[2] + data[3]; - info->background_b = 256u * data[4] + data[5]; - } - - return 0; /* OK */ -} - -/*text chunk (tEXt)*/ -static unsigned readChunk_tEXt(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) -{ - unsigned error = 0; - char *key = 0, *str = 0; - unsigned i; - - while(!error) /*not really a while loop, only used to break on error*/ - { - unsigned length, string2_begin; - - length = 0; - while(length < chunkLength && data[length] != 0) ++length; - /*even though it's not allowed by the standard, no error is thrown if - there's no null termination char, if the text is empty*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - string2_begin = length + 1; /*skip keyword null terminator*/ - - length = chunkLength < string2_begin ? 0 : chunkLength - string2_begin; - str = (char*)lodepng_malloc(length + 1); - if(!str) CERROR_BREAK(error, 83); /*alloc fail*/ - - str[length] = 0; - for(i = 0; i != length; ++i) str[i] = (char)data[string2_begin + i]; - - error = lodepng_add_text(info, key, str); - - break; - } - - lodepng_free(key); - lodepng_free(str); - - return error; -} - -/*compressed text chunk (zTXt)*/ -static unsigned readChunk_zTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings, - const unsigned char* data, size_t chunkLength) -{ - unsigned error = 0; - unsigned i; - - unsigned length, string2_begin; - char *key = 0; - ucvector decoded; - - ucvector_init(&decoded); - - while(!error) /*not really a while loop, only used to break on error*/ - { - for(length = 0; length < chunkLength && data[length] != 0; ++length) ; - if(length + 2 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - if(data[length + 1] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/ - - string2_begin = length + 2; - if(string2_begin > chunkLength) CERROR_BREAK(error, 75); /*no null termination, corrupt?*/ - - length = chunkLength - string2_begin; - /*will fail if zlib error, e.g. if length is too small*/ - error = zlib_decompress(&decoded.data, &decoded.size, - (unsigned char*)(&data[string2_begin]), - length, zlibsettings); - if(error) break; - ucvector_push_back(&decoded, 0); - - error = lodepng_add_text(info, key, (char*)decoded.data); - - break; - } - - lodepng_free(key); - ucvector_cleanup(&decoded); - - return error; -} - -/*international text chunk (iTXt)*/ -static unsigned readChunk_iTXt(LodePNGInfo* info, const LodePNGDecompressSettings* zlibsettings, - const unsigned char* data, size_t chunkLength) -{ - unsigned error = 0; - unsigned i; - - unsigned length, begin, compressed; - char *key = 0, *langtag = 0, *transkey = 0; - ucvector decoded; - ucvector_init(&decoded); - - while(!error) /*not really a while loop, only used to break on error*/ - { - /*Quick check if the chunk length isn't too small. Even without check - it'd still fail with other error checks below if it's too short. This just gives a different error code.*/ - if(chunkLength < 5) CERROR_BREAK(error, 30); /*iTXt chunk too short*/ - - /*read the key*/ - for(length = 0; length < chunkLength && data[length] != 0; ++length) ; - if(length + 3 >= chunkLength) CERROR_BREAK(error, 75); /*no null termination char, corrupt?*/ - if(length < 1 || length > 79) CERROR_BREAK(error, 89); /*keyword too short or long*/ - - key = (char*)lodepng_malloc(length + 1); - if(!key) CERROR_BREAK(error, 83); /*alloc fail*/ - - key[length] = 0; - for(i = 0; i != length; ++i) key[i] = (char)data[i]; - - /*read the compression method*/ - compressed = data[length + 1]; - if(data[length + 2] != 0) CERROR_BREAK(error, 72); /*the 0 byte indicating compression must be 0*/ - - /*even though it's not allowed by the standard, no error is thrown if - there's no null termination char, if the text is empty for the next 3 texts*/ - - /*read the langtag*/ - begin = length + 3; - length = 0; - for(i = begin; i < chunkLength && data[i] != 0; ++i) ++length; - - langtag = (char*)lodepng_malloc(length + 1); - if(!langtag) CERROR_BREAK(error, 83); /*alloc fail*/ - - langtag[length] = 0; - for(i = 0; i != length; ++i) langtag[i] = (char)data[begin + i]; - - /*read the transkey*/ - begin += length + 1; - length = 0; - for(i = begin; i < chunkLength && data[i] != 0; ++i) ++length; - - transkey = (char*)lodepng_malloc(length + 1); - if(!transkey) CERROR_BREAK(error, 83); /*alloc fail*/ - - transkey[length] = 0; - for(i = 0; i != length; ++i) transkey[i] = (char)data[begin + i]; - - /*read the actual text*/ - begin += length + 1; - - length = chunkLength < begin ? 0 : chunkLength - begin; - - if(compressed) - { - /*will fail if zlib error, e.g. if length is too small*/ - error = zlib_decompress(&decoded.data, &decoded.size, - (unsigned char*)(&data[begin]), - length, zlibsettings); - if(error) break; - if(decoded.allocsize < decoded.size) decoded.allocsize = decoded.size; - ucvector_push_back(&decoded, 0); - } - else - { - if(!ucvector_resize(&decoded, length + 1)) CERROR_BREAK(error, 83 /*alloc fail*/); - - decoded.data[length] = 0; - for(i = 0; i != length; ++i) decoded.data[i] = data[begin + i]; - } - - error = lodepng_add_itext(info, key, langtag, transkey, (char*)decoded.data); - - break; - } - - lodepng_free(key); - lodepng_free(langtag); - lodepng_free(transkey); - ucvector_cleanup(&decoded); - - return error; -} - -static unsigned readChunk_tIME(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) -{ - if(chunkLength != 7) return 73; /*invalid tIME chunk size*/ - - info->time_defined = 1; - info->time.year = 256u * data[0] + data[1]; - info->time.month = data[2]; - info->time.day = data[3]; - info->time.hour = data[4]; - info->time.minute = data[5]; - info->time.second = data[6]; - - return 0; /* OK */ -} - -static unsigned readChunk_pHYs(LodePNGInfo* info, const unsigned char* data, size_t chunkLength) -{ - if(chunkLength != 9) return 74; /*invalid pHYs chunk size*/ - - info->phys_defined = 1; - info->phys_x = 16777216u * data[0] + 65536u * data[1] + 256u * data[2] + data[3]; - info->phys_y = 16777216u * data[4] + 65536u * data[5] + 256u * data[6] + data[7]; - info->phys_unit = data[8]; - - return 0; /* OK */ -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -/*read a PNG, the result will be in the same color type as the PNG (hence "generic")*/ -static void decodeGeneric(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize) -{ - unsigned char IEND = 0; - const unsigned char* chunk; - size_t i; - ucvector idat; /*the data from idat chunks*/ - ucvector scanlines; - size_t predict; - size_t numpixels; - size_t outsize = 0; - - /*for unknown chunk order*/ - unsigned unknown = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - unsigned critical_pos = 1; /*1 = after IHDR, 2 = after PLTE, 3 = after IDAT*/ -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - - /*provide some proper output values if error will happen*/ - *out = 0; - - state->error = lodepng_inspect(w, h, state, in, insize); /*reads header and resets other parameters in state->info_png*/ - if(state->error) return; - - numpixels = *w * *h; - - /*multiplication overflow*/ - if(*h != 0 && numpixels / *h != *w) CERROR_RETURN(state->error, 92); - /*multiplication overflow possible further below. Allows up to 2^31-1 pixel - bytes with 16-bit RGBA, the rest is room for filter bytes.*/ - if(numpixels > 268435455) CERROR_RETURN(state->error, 92); - - ucvector_init(&idat); - chunk = &in[33]; /*first byte of the first chunk after the header*/ - - /*loop through the chunks, ignoring unknown chunks and stopping at IEND chunk. - IDAT data is put at the start of the in buffer*/ - while(!IEND && !state->error) - { - unsigned chunkLength; - const unsigned char* data; /*the data in the chunk*/ - - /*error: size of the in buffer too small to contain next chunk*/ - if((size_t)((chunk - in) + 12) > insize || chunk < in) CERROR_BREAK(state->error, 30); - - /*length of the data of the chunk, excluding the length bytes, chunk type and CRC bytes*/ - chunkLength = lodepng_chunk_length(chunk); - /*error: chunk length larger than the max PNG chunk size*/ - if(chunkLength > 2147483647) CERROR_BREAK(state->error, 63); - - if((size_t)((chunk - in) + chunkLength + 12) > insize || (chunk + chunkLength + 12) < in) - { - CERROR_BREAK(state->error, 64); /*error: size of the in buffer too small to contain next chunk*/ - } - - data = lodepng_chunk_data_const(chunk); - - /*IDAT chunk, containing compressed image data*/ - if(lodepng_chunk_type_equals(chunk, "IDAT")) - { - size_t oldsize = idat.size; - if(!ucvector_resize(&idat, oldsize + chunkLength)) CERROR_BREAK(state->error, 83 /*alloc fail*/); - for(i = 0; i != chunkLength; ++i) idat.data[oldsize + i] = data[i]; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - critical_pos = 3; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } - /*IEND chunk*/ - else if(lodepng_chunk_type_equals(chunk, "IEND")) - { - IEND = 1; - } - /*palette chunk (PLTE)*/ - else if(lodepng_chunk_type_equals(chunk, "PLTE")) - { - state->error = readChunk_PLTE(&state->info_png.color, data, chunkLength); - if(state->error) break; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - critical_pos = 2; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } - /*palette transparency chunk (tRNS)*/ - else if(lodepng_chunk_type_equals(chunk, "tRNS")) - { - state->error = readChunk_tRNS(&state->info_png.color, data, chunkLength); - if(state->error) break; - } -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*background color chunk (bKGD)*/ - else if(lodepng_chunk_type_equals(chunk, "bKGD")) - { - state->error = readChunk_bKGD(&state->info_png, data, chunkLength); - if(state->error) break; - } - /*text chunk (tEXt)*/ - else if(lodepng_chunk_type_equals(chunk, "tEXt")) - { - if(state->decoder.read_text_chunks) - { - state->error = readChunk_tEXt(&state->info_png, data, chunkLength); - if(state->error) break; - } - } - /*compressed text chunk (zTXt)*/ - else if(lodepng_chunk_type_equals(chunk, "zTXt")) - { - if(state->decoder.read_text_chunks) - { - state->error = readChunk_zTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - if(state->error) break; - } - } - /*international text chunk (iTXt)*/ - else if(lodepng_chunk_type_equals(chunk, "iTXt")) - { - if(state->decoder.read_text_chunks) - { - state->error = readChunk_iTXt(&state->info_png, &state->decoder.zlibsettings, data, chunkLength); - if(state->error) break; - } - } - else if(lodepng_chunk_type_equals(chunk, "tIME")) - { - state->error = readChunk_tIME(&state->info_png, data, chunkLength); - if(state->error) break; - } - else if(lodepng_chunk_type_equals(chunk, "pHYs")) - { - state->error = readChunk_pHYs(&state->info_png, data, chunkLength); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - else /*it's not an implemented chunk type, so ignore it: skip over the data*/ - { - /*error: unknown critical chunk (5th bit of first byte of chunk type is 0)*/ - if(!lodepng_chunk_ancillary(chunk)) CERROR_BREAK(state->error, 69); - - unknown = 1; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - if(state->decoder.remember_unknown_chunks) - { - state->error = lodepng_chunk_append(&state->info_png.unknown_chunks_data[critical_pos - 1], - &state->info_png.unknown_chunks_size[critical_pos - 1], chunk); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - } - - if(!state->decoder.ignore_crc && !unknown) /*check CRC if wanted, only on known chunk types*/ - { - if(lodepng_chunk_check_crc(chunk)) CERROR_BREAK(state->error, 57); /*invalid CRC*/ - } - - if(!IEND) chunk = lodepng_chunk_next_const(chunk); - } - - ucvector_init(&scanlines); - /*predict output size, to allocate exact size for output buffer to avoid more dynamic allocation. - If the decompressed size does not match the prediction, the image must be corrupt.*/ - if(state->info_png.interlace_method == 0) - { - /*The extra *h is added because this are the filter bytes every scanline starts with*/ - predict = lodepng_get_raw_size_idat(*w, *h, &state->info_png.color) + *h; - } - else - { - /*Adam-7 interlaced: predicted size is the sum of the 7 sub-images sizes*/ - const LodePNGColorMode* color = &state->info_png.color; - predict = 0; - predict += lodepng_get_raw_size_idat((*w + 7) >> 3, (*h + 7) >> 3, color) + ((*h + 7) >> 3); - if(*w > 4) predict += lodepng_get_raw_size_idat((*w + 3) >> 3, (*h + 7) >> 3, color) + ((*h + 7) >> 3); - predict += lodepng_get_raw_size_idat((*w + 3) >> 2, (*h + 3) >> 3, color) + ((*h + 3) >> 3); - if(*w > 2) predict += lodepng_get_raw_size_idat((*w + 1) >> 2, (*h + 3) >> 2, color) + ((*h + 3) >> 2); - predict += lodepng_get_raw_size_idat((*w + 1) >> 1, (*h + 1) >> 2, color) + ((*h + 1) >> 2); - if(*w > 1) predict += lodepng_get_raw_size_idat((*w + 0) >> 1, (*h + 1) >> 1, color) + ((*h + 1) >> 1); - predict += lodepng_get_raw_size_idat((*w + 0), (*h + 0) >> 1, color) + ((*h + 0) >> 1); - } - if(!state->error && !ucvector_reserve(&scanlines, predict)) state->error = 83; /*alloc fail*/ - if(!state->error) - { - state->error = zlib_decompress(&scanlines.data, &scanlines.size, idat.data, - idat.size, &state->decoder.zlibsettings); - if(!state->error && scanlines.size != predict) state->error = 91; /*decompressed size doesn't match prediction*/ - } - ucvector_cleanup(&idat); - - if(!state->error) - { - outsize = lodepng_get_raw_size(*w, *h, &state->info_png.color); - *out = (unsigned char*)lodepng_malloc(outsize); - if(!*out) state->error = 83; /*alloc fail*/ - } - if(!state->error) - { - for(i = 0; i < outsize; i++) (*out)[i] = 0; - state->error = postProcessScanlines(*out, scanlines.data, *w, *h, &state->info_png); - } - ucvector_cleanup(&scanlines); -} - -unsigned lodepng_decode(unsigned char** out, unsigned* w, unsigned* h, - LodePNGState* state, - const unsigned char* in, size_t insize) -{ - *out = 0; - decodeGeneric(out, w, h, state, in, insize); - if(state->error) return state->error; - if(!state->decoder.color_convert || lodepng_color_mode_equal(&state->info_raw, &state->info_png.color)) - { - /*same color type, no copying or converting of data needed*/ - /*store the info_png color settings on the info_raw so that the info_raw still reflects what colortype - the raw image has to the end user*/ - if(!state->decoder.color_convert) - { - state->error = lodepng_color_mode_copy(&state->info_raw, &state->info_png.color); - if(state->error) return state->error; - } - } - else - { - /*color conversion needed; sort of copy of the data*/ - unsigned char* data = *out; - size_t outsize; - - /*TODO: check if this works according to the statement in the documentation: "The converter can convert - from greyscale input color type, to 8-bit greyscale or greyscale with alpha"*/ - if(!(state->info_raw.colortype == LCT_RGB || state->info_raw.colortype == LCT_RGBA) - && !(state->info_raw.bitdepth == 8)) - { - return 56; /*unsupported color mode conversion*/ - } - - outsize = lodepng_get_raw_size(*w, *h, &state->info_raw); - *out = (unsigned char*)lodepng_malloc(outsize); - if(!(*out)) - { - state->error = 83; /*alloc fail*/ - } - else state->error = lodepng_convert(*out, data, &state->info_raw, - &state->info_png.color, *w, *h); - lodepng_free(data); - } - return state->error; -} - -unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, - size_t insize, LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned error; - LodePNGState state; - lodepng_state_init(&state); - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - error = lodepng_decode(out, w, h, &state, in, insize); - lodepng_state_cleanup(&state); - return error; -} - -unsigned lodepng_decode32(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize) -{ - return lodepng_decode_memory(out, w, h, in, insize, LCT_RGBA, 8); -} - -unsigned lodepng_decode24(unsigned char** out, unsigned* w, unsigned* h, const unsigned char* in, size_t insize) -{ - return lodepng_decode_memory(out, w, h, in, insize, LCT_RGB, 8); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned lodepng_decode_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename, - LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned char* buffer = 0; - size_t buffersize; - unsigned error; - error = lodepng_load_file(&buffer, &buffersize, filename); - if(!error) error = lodepng_decode_memory(out, w, h, buffer, buffersize, colortype, bitdepth); - lodepng_free(buffer); - return error; -} - -unsigned lodepng_decode32_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename) -{ - return lodepng_decode_file(out, w, h, filename, LCT_RGBA, 8); -} - -unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h, const char* filename) -{ - return lodepng_decode_file(out, w, h, filename, LCT_RGB, 8); -} -#endif /*LODEPNG_COMPILE_DISK*/ - -void lodepng_decoder_settings_init(LodePNGDecoderSettings* settings) -{ - settings->color_convert = 1; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - settings->read_text_chunks = 1; - settings->remember_unknown_chunks = 0; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - settings->ignore_crc = 0; - lodepng_decompress_settings_init(&settings->zlibsettings); -} - -#endif /*LODEPNG_COMPILE_DECODER*/ - -#if defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) - -void lodepng_state_init(LodePNGState* state) -{ -#ifdef LODEPNG_COMPILE_DECODER - lodepng_decoder_settings_init(&state->decoder); -#endif /*LODEPNG_COMPILE_DECODER*/ -#ifdef LODEPNG_COMPILE_ENCODER - lodepng_encoder_settings_init(&state->encoder); -#endif /*LODEPNG_COMPILE_ENCODER*/ - lodepng_color_mode_init(&state->info_raw); - lodepng_info_init(&state->info_png); - state->error = 1; -} - -void lodepng_state_cleanup(LodePNGState* state) -{ - lodepng_color_mode_cleanup(&state->info_raw); - lodepng_info_cleanup(&state->info_png); -} - -void lodepng_state_copy(LodePNGState* dest, const LodePNGState* source) -{ - lodepng_state_cleanup(dest); - *dest = *source; - lodepng_color_mode_init(&dest->info_raw); - lodepng_info_init(&dest->info_png); - dest->error = lodepng_color_mode_copy(&dest->info_raw, &source->info_raw); if(dest->error) return; - dest->error = lodepng_info_copy(&dest->info_png, &source->info_png); if(dest->error) return; -} - -#endif /* defined(LODEPNG_COMPILE_DECODER) || defined(LODEPNG_COMPILE_ENCODER) */ - -#ifdef LODEPNG_COMPILE_ENCODER - -/* ////////////////////////////////////////////////////////////////////////// */ -/* / PNG Encoder / */ -/* ////////////////////////////////////////////////////////////////////////// */ - -/*chunkName must be string of 4 characters*/ -static unsigned addChunk(ucvector* out, const char* chunkName, const unsigned char* data, size_t length) -{ - CERROR_TRY_RETURN(lodepng_chunk_create(&out->data, &out->size, (unsigned)length, chunkName, data)); - out->allocsize = out->size; /*fix the allocsize again*/ - return 0; -} - -static void writeSignature(ucvector* out) -{ - /*8 bytes PNG signature, aka the magic bytes*/ - ucvector_push_back(out, 137); - ucvector_push_back(out, 80); - ucvector_push_back(out, 78); - ucvector_push_back(out, 71); - ucvector_push_back(out, 13); - ucvector_push_back(out, 10); - ucvector_push_back(out, 26); - ucvector_push_back(out, 10); -} - -static unsigned addChunk_IHDR(ucvector* out, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth, unsigned interlace_method) -{ - unsigned error = 0; - ucvector header; - ucvector_init(&header); - - lodepng_add32bitInt(&header, w); /*width*/ - lodepng_add32bitInt(&header, h); /*height*/ - ucvector_push_back(&header, (unsigned char)bitdepth); /*bit depth*/ - ucvector_push_back(&header, (unsigned char)colortype); /*color type*/ - ucvector_push_back(&header, 0); /*compression method*/ - ucvector_push_back(&header, 0); /*filter method*/ - ucvector_push_back(&header, interlace_method); /*interlace method*/ - - error = addChunk(out, "IHDR", header.data, header.size); - ucvector_cleanup(&header); - - return error; -} - -static unsigned addChunk_PLTE(ucvector* out, const LodePNGColorMode* info) -{ - unsigned error = 0; - size_t i; - ucvector PLTE; - ucvector_init(&PLTE); - for(i = 0; i != info->palettesize * 4; ++i) - { - /*add all channels except alpha channel*/ - if(i % 4 != 3) ucvector_push_back(&PLTE, info->palette[i]); - } - error = addChunk(out, "PLTE", PLTE.data, PLTE.size); - ucvector_cleanup(&PLTE); - - return error; -} - -static unsigned addChunk_tRNS(ucvector* out, const LodePNGColorMode* info) -{ - unsigned error = 0; - size_t i; - ucvector tRNS; - ucvector_init(&tRNS); - if(info->colortype == LCT_PALETTE) - { - size_t amount = info->palettesize; - /*the tail of palette values that all have 255 as alpha, does not have to be encoded*/ - for(i = info->palettesize; i != 0; --i) - { - if(info->palette[4 * (i - 1) + 3] == 255) --amount; - else break; - } - /*add only alpha channel*/ - for(i = 0; i != amount; ++i) ucvector_push_back(&tRNS, info->palette[4 * i + 3]); - } - else if(info->colortype == LCT_GREY) - { - if(info->key_defined) - { - ucvector_push_back(&tRNS, (unsigned char)(info->key_r >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_r & 255)); - } - } - else if(info->colortype == LCT_RGB) - { - if(info->key_defined) - { - ucvector_push_back(&tRNS, (unsigned char)(info->key_r >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_r & 255)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_g >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_g & 255)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_b >> 8)); - ucvector_push_back(&tRNS, (unsigned char)(info->key_b & 255)); - } - } - - error = addChunk(out, "tRNS", tRNS.data, tRNS.size); - ucvector_cleanup(&tRNS); - - return error; -} - -static unsigned addChunk_IDAT(ucvector* out, const unsigned char* data, size_t datasize, - LodePNGCompressSettings* zlibsettings) -{ - ucvector zlibdata; - unsigned error = 0; - - /*compress with the Zlib compressor*/ - ucvector_init(&zlibdata); - error = zlib_compress(&zlibdata.data, &zlibdata.size, data, datasize, zlibsettings); - if(!error) error = addChunk(out, "IDAT", zlibdata.data, zlibdata.size); - ucvector_cleanup(&zlibdata); - - return error; -} - -static unsigned addChunk_IEND(ucvector* out) -{ - unsigned error = 0; - error = addChunk(out, "IEND", 0, 0); - return error; -} - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - -static unsigned addChunk_tEXt(ucvector* out, const char* keyword, const char* textstring) -{ - unsigned error = 0; - size_t i; - ucvector text; - ucvector_init(&text); - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&text, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&text, 0); /*0 termination char*/ - for(i = 0; textstring[i] != 0; ++i) ucvector_push_back(&text, (unsigned char)textstring[i]); - error = addChunk(out, "tEXt", text.data, text.size); - ucvector_cleanup(&text); - - return error; -} - -static unsigned addChunk_zTXt(ucvector* out, const char* keyword, const char* textstring, - LodePNGCompressSettings* zlibsettings) -{ - unsigned error = 0; - ucvector data, compressed; - size_t i, textsize = strlen(textstring); - - ucvector_init(&data); - ucvector_init(&compressed); - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&data, 0); /*0 termination char*/ - ucvector_push_back(&data, 0); /*compression method: 0*/ - - error = zlib_compress(&compressed.data, &compressed.size, - (unsigned char*)textstring, textsize, zlibsettings); - if(!error) - { - for(i = 0; i != compressed.size; ++i) ucvector_push_back(&data, compressed.data[i]); - error = addChunk(out, "zTXt", data.data, data.size); - } - - ucvector_cleanup(&compressed); - ucvector_cleanup(&data); - return error; -} - -static unsigned addChunk_iTXt(ucvector* out, unsigned compressed, const char* keyword, const char* langtag, - const char* transkey, const char* textstring, LodePNGCompressSettings* zlibsettings) -{ - unsigned error = 0; - ucvector data; - size_t i, textsize = strlen(textstring); - - ucvector_init(&data); - - for(i = 0; keyword[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)keyword[i]); - if(i < 1 || i > 79) return 89; /*error: invalid keyword size*/ - ucvector_push_back(&data, 0); /*null termination char*/ - ucvector_push_back(&data, compressed ? 1 : 0); /*compression flag*/ - ucvector_push_back(&data, 0); /*compression method*/ - for(i = 0; langtag[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)langtag[i]); - ucvector_push_back(&data, 0); /*null termination char*/ - for(i = 0; transkey[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)transkey[i]); - ucvector_push_back(&data, 0); /*null termination char*/ - - if(compressed) - { - ucvector compressed_data; - ucvector_init(&compressed_data); - error = zlib_compress(&compressed_data.data, &compressed_data.size, - (unsigned char*)textstring, textsize, zlibsettings); - if(!error) - { - for(i = 0; i != compressed_data.size; ++i) ucvector_push_back(&data, compressed_data.data[i]); - } - ucvector_cleanup(&compressed_data); - } - else /*not compressed*/ - { - for(i = 0; textstring[i] != 0; ++i) ucvector_push_back(&data, (unsigned char)textstring[i]); - } - - if(!error) error = addChunk(out, "iTXt", data.data, data.size); - ucvector_cleanup(&data); - return error; -} - -static unsigned addChunk_bKGD(ucvector* out, const LodePNGInfo* info) -{ - unsigned error = 0; - ucvector bKGD; - ucvector_init(&bKGD); - if(info->color.colortype == LCT_GREY || info->color.colortype == LCT_GREY_ALPHA) - { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); - } - else if(info->color.colortype == LCT_RGB || info->color.colortype == LCT_RGBA) - { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_g >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_g & 255)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_b >> 8)); - ucvector_push_back(&bKGD, (unsigned char)(info->background_b & 255)); - } - else if(info->color.colortype == LCT_PALETTE) - { - ucvector_push_back(&bKGD, (unsigned char)(info->background_r & 255)); /*palette index*/ - } - - error = addChunk(out, "bKGD", bKGD.data, bKGD.size); - ucvector_cleanup(&bKGD); - - return error; -} - -static unsigned addChunk_tIME(ucvector* out, const LodePNGTime* time) -{ - unsigned error = 0; - unsigned char* data = (unsigned char*)lodepng_malloc(7); - if(!data) return 83; /*alloc fail*/ - data[0] = (unsigned char)(time->year >> 8); - data[1] = (unsigned char)(time->year & 255); - data[2] = (unsigned char)time->month; - data[3] = (unsigned char)time->day; - data[4] = (unsigned char)time->hour; - data[5] = (unsigned char)time->minute; - data[6] = (unsigned char)time->second; - error = addChunk(out, "tIME", data, 7); - lodepng_free(data); - return error; -} - -static unsigned addChunk_pHYs(ucvector* out, const LodePNGInfo* info) -{ - unsigned error = 0; - ucvector data; - ucvector_init(&data); - - lodepng_add32bitInt(&data, info->phys_x); - lodepng_add32bitInt(&data, info->phys_y); - ucvector_push_back(&data, info->phys_unit); - - error = addChunk(out, "pHYs", data.data, data.size); - ucvector_cleanup(&data); - - return error; -} - -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -static void filterScanline(unsigned char* out, const unsigned char* scanline, const unsigned char* prevline, - size_t length, size_t bytewidth, unsigned char filterType) -{ - size_t i; - switch(filterType) - { - case 0: /*None*/ - for(i = 0; i != length; ++i) out[i] = scanline[i]; - break; - case 1: /*Sub*/ - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - scanline[i - bytewidth]; - break; - case 2: /*Up*/ - if(prevline) - { - for(i = 0; i != length; ++i) out[i] = scanline[i] - prevline[i]; - } - else - { - for(i = 0; i != length; ++i) out[i] = scanline[i]; - } - break; - case 3: /*Average*/ - if(prevline) - { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i] - (prevline[i] >> 1); - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - ((scanline[i - bytewidth] + prevline[i]) >> 1); - } - else - { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - for(i = bytewidth; i < length; ++i) out[i] = scanline[i] - (scanline[i - bytewidth] >> 1); - } - break; - case 4: /*Paeth*/ - if(prevline) - { - /*paethPredictor(0, prevline[i], 0) is always prevline[i]*/ - for(i = 0; i != bytewidth; ++i) out[i] = (scanline[i] - prevline[i]); - for(i = bytewidth; i < length; ++i) - { - out[i] = (scanline[i] - paethPredictor(scanline[i - bytewidth], prevline[i], prevline[i - bytewidth])); - } - } - else - { - for(i = 0; i != bytewidth; ++i) out[i] = scanline[i]; - /*paethPredictor(scanline[i - bytewidth], 0, 0) is always scanline[i - bytewidth]*/ - for(i = bytewidth; i < length; ++i) out[i] = (scanline[i] - scanline[i - bytewidth]); - } - break; - default: return; /*unexisting filter type given*/ - } -} - -/* log2 approximation. A slight bit faster than std::log. */ -static float flog2(float f) -{ - float result = 0; - while(f > 32) { result += 4; f /= 16; } - while(f > 2) { ++result; f /= 2; } - return result + 1.442695f * (f * f * f / 3 - 3 * f * f / 2 + 3 * f - 1.83333f); -} - -static unsigned filter(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, - const LodePNGColorMode* info, const LodePNGEncoderSettings* settings) -{ - /* - For PNG filter method 0 - out must be a buffer with as size: h + (w * h * bpp + 7) / 8, because there are - the scanlines with 1 extra byte per scanline - */ - - unsigned bpp = lodepng_get_bpp(info); - /*the width of a scanline in bytes, not including the filter type*/ - size_t linebytes = (w * bpp + 7) / 8; - /*bytewidth is used for filtering, is 1 when bpp < 8, number of bytes per pixel otherwise*/ - size_t bytewidth = (bpp + 7) / 8; - const unsigned char* prevline = 0; - unsigned x, y; - unsigned error = 0; - LodePNGFilterStrategy strategy = settings->filter_strategy; - - /* - There is a heuristic called the minimum sum of absolute differences heuristic, suggested by the PNG standard: - * If the image type is Palette, or the bit depth is smaller than 8, then do not filter the image (i.e. - use fixed filtering, with the filter None). - * (The other case) If the image type is Grayscale or RGB (with or without Alpha), and the bit depth is - not smaller than 8, then use adaptive filtering heuristic as follows: independently for each row, apply - all five filters and select the filter that produces the smallest sum of absolute values per row. - This heuristic is used if filter strategy is LFS_MINSUM and filter_palette_zero is true. - - If filter_palette_zero is true and filter_strategy is not LFS_MINSUM, the above heuristic is followed, - but for "the other case", whatever strategy filter_strategy is set to instead of the minimum sum - heuristic is used. - */ - if(settings->filter_palette_zero && - (info->colortype == LCT_PALETTE || info->bitdepth < 8)) strategy = LFS_ZERO; - - if(bpp == 0) return 31; /*error: invalid color type*/ - - if(strategy == LFS_ZERO) - { - for(y = 0; y != h; ++y) - { - size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - size_t inindex = linebytes * y; - out[outindex] = 0; /*filter type byte*/ - filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, 0); - prevline = &in[inindex]; - } - } - else if(strategy == LFS_MINSUM) - { - /*adaptive filtering*/ - size_t sum[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - size_t smallest = 0; - unsigned char type, bestType = 0; - - for(type = 0; type != 5; ++type) - { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - - if(!error) - { - for(y = 0; y != h; ++y) - { - /*try the 5 filter types*/ - for(type = 0; type != 5; ++type) - { - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - - /*calculate the sum of the result*/ - sum[type] = 0; - if(type == 0) - { - for(x = 0; x != linebytes; ++x) sum[type] += (unsigned char)(attempt[type][x]); - } - else - { - for(x = 0; x != linebytes; ++x) - { - /*For differences, each byte should be treated as signed, values above 127 are negative - (converted to signed char). Filtertype 0 isn't a difference though, so use unsigned there. - This means filtertype 0 is almost never chosen, but that is justified.*/ - unsigned char s = attempt[type][x]; - sum[type] += s < 128 ? s : (255U - s); - } - } - - /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || sum[type] < smallest) - { - bestType = type; - smallest = sum[type]; - } - } - - prevline = &in[y * linebytes]; - - /*now fill the out values*/ - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - } - - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } - else if(strategy == LFS_ENTROPY) - { - float sum[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - float smallest = 0; - unsigned type, bestType = 0; - unsigned count[256]; - - for(type = 0; type != 5; ++type) - { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - - for(y = 0; y != h; ++y) - { - /*try the 5 filter types*/ - for(type = 0; type != 5; ++type) - { - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - for(x = 0; x != 256; ++x) count[x] = 0; - for(x = 0; x != linebytes; ++x) ++count[attempt[type][x]]; - ++count[type]; /*the filter type itself is part of the scanline*/ - sum[type] = 0; - for(x = 0; x != 256; ++x) - { - float p = count[x] / (float)(linebytes + 1); - sum[type] += count[x] == 0 ? 0 : flog2(1 / p) * p; - } - /*check if this is smallest sum (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || sum[type] < smallest) - { - bestType = type; - smallest = sum[type]; - } - } - - prevline = &in[y * linebytes]; - - /*now fill the out values*/ - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } - else if(strategy == LFS_PREDEFINED) - { - for(y = 0; y != h; ++y) - { - size_t outindex = (1 + linebytes) * y; /*the extra filterbyte added to each row*/ - size_t inindex = linebytes * y; - unsigned char type = settings->predefined_filters[y]; - out[outindex] = type; /*filter type byte*/ - filterScanline(&out[outindex + 1], &in[inindex], prevline, linebytes, bytewidth, type); - prevline = &in[inindex]; - } - } - else if(strategy == LFS_BRUTE_FORCE) - { - /*brute force filter chooser. - deflate the scanline after every filter attempt to see which one deflates best. - This is very slow and gives only slightly smaller, sometimes even larger, result*/ - size_t size[5]; - unsigned char* attempt[5]; /*five filtering attempts, one for each filter type*/ - size_t smallest = 0; - unsigned type = 0, bestType = 0; - unsigned char* dummy; - LodePNGCompressSettings zlibsettings = settings->zlibsettings; - /*use fixed tree on the attempts so that the tree is not adapted to the filtertype on purpose, - to simulate the true case where the tree is the same for the whole image. Sometimes it gives - better result with dynamic tree anyway. Using the fixed tree sometimes gives worse, but in rare - cases better compression. It does make this a bit less slow, so it's worth doing this.*/ - zlibsettings.btype = 1; - /*a custom encoder likely doesn't read the btype setting and is optimized for complete PNG - images only, so disable it*/ - zlibsettings.custom_zlib = 0; - zlibsettings.custom_deflate = 0; - for(type = 0; type != 5; ++type) - { - attempt[type] = (unsigned char*)lodepng_malloc(linebytes); - if(!attempt[type]) return 83; /*alloc fail*/ - } - for(y = 0; y != h; ++y) /*try the 5 filter types*/ - { - for(type = 0; type != 5; ++type) - { - unsigned testsize = linebytes; - /*if(testsize > 8) testsize /= 8;*/ /*it already works good enough by testing a part of the row*/ - - filterScanline(attempt[type], &in[y * linebytes], prevline, linebytes, bytewidth, type); - size[type] = 0; - dummy = 0; - zlib_compress(&dummy, &size[type], attempt[type], testsize, &zlibsettings); - lodepng_free(dummy); - /*check if this is smallest size (or if type == 0 it's the first case so always store the values)*/ - if(type == 0 || size[type] < smallest) - { - bestType = type; - smallest = size[type]; - } - } - prevline = &in[y * linebytes]; - out[y * (linebytes + 1)] = bestType; /*the first byte of a scanline will be the filter type*/ - for(x = 0; x != linebytes; ++x) out[y * (linebytes + 1) + 1 + x] = attempt[bestType][x]; - } - for(type = 0; type != 5; ++type) lodepng_free(attempt[type]); - } - else return 88; /* unknown filter strategy */ - - return error; -} - -static void addPaddingBits(unsigned char* out, const unsigned char* in, - size_t olinebits, size_t ilinebits, unsigned h) -{ - /*The opposite of the removePaddingBits function - olinebits must be >= ilinebits*/ - unsigned y; - size_t diff = olinebits - ilinebits; - size_t obp = 0, ibp = 0; /*bit pointers*/ - for(y = 0; y != h; ++y) - { - size_t x; - for(x = 0; x < ilinebits; ++x) - { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - /*obp += diff; --> no, fill in some value in the padding bits too, to avoid - "Use of uninitialised value of size ###" warning from valgrind*/ - for(x = 0; x != diff; ++x) setBitOfReversedStream(&obp, out, 0); - } -} - -/* -in: non-interlaced image with size w*h -out: the same pixels, but re-ordered according to PNG's Adam7 interlacing, with - no padding bits between scanlines, but between reduced images so that each - reduced image starts at a byte. -bpp: bits per pixel -there are no padding bits, not between scanlines, not between reduced images -in has the following size in bits: w * h * bpp. -out is possibly bigger due to padding bits between reduced images -NOTE: comments about padding bits are only relevant if bpp < 8 -*/ -static void Adam7_interlace(unsigned char* out, const unsigned char* in, unsigned w, unsigned h, unsigned bpp) -{ - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned i; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - if(bpp >= 8) - { - for(i = 0; i != 7; ++i) - { - unsigned x, y, b; - size_t bytewidth = bpp / 8; - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) - { - size_t pixelinstart = ((ADAM7_IY[i] + y * ADAM7_DY[i]) * w + ADAM7_IX[i] + x * ADAM7_DX[i]) * bytewidth; - size_t pixeloutstart = passstart[i] + (y * passw[i] + x) * bytewidth; - for(b = 0; b < bytewidth; ++b) - { - out[pixeloutstart + b] = in[pixelinstart + b]; - } - } - } - } - else /*bpp < 8: Adam7 with pixels < 8 bit is a bit trickier: with bit pointers*/ - { - for(i = 0; i != 7; ++i) - { - unsigned x, y, b; - unsigned ilinebits = bpp * passw[i]; - unsigned olinebits = bpp * w; - size_t obp, ibp; /*bit pointers (for out and in buffer)*/ - for(y = 0; y < passh[i]; ++y) - for(x = 0; x < passw[i]; ++x) - { - ibp = (ADAM7_IY[i] + y * ADAM7_DY[i]) * olinebits + (ADAM7_IX[i] + x * ADAM7_DX[i]) * bpp; - obp = (8 * passstart[i]) + (y * ilinebits + x * bpp); - for(b = 0; b < bpp; ++b) - { - unsigned char bit = readBitFromReversedStream(&ibp, in); - setBitOfReversedStream(&obp, out, bit); - } - } - } - } -} - -/*out must be buffer big enough to contain uncompressed IDAT chunk data, and in must contain the full image. -return value is error**/ -static unsigned preProcessScanlines(unsigned char** out, size_t* outsize, const unsigned char* in, - unsigned w, unsigned h, - const LodePNGInfo* info_png, const LodePNGEncoderSettings* settings) -{ - /* - This function converts the pure 2D image with the PNG's colortype, into filtered-padded-interlaced data. Steps: - *) if no Adam7: 1) add padding bits (= posible extra bits per scanline if bpp < 8) 2) filter - *) if adam7: 1) Adam7_interlace 2) 7x add padding bits 3) 7x filter - */ - unsigned bpp = lodepng_get_bpp(&info_png->color); - unsigned error = 0; - - if(info_png->interlace_method == 0) - { - *outsize = h + (h * ((w * bpp + 7) / 8)); /*image size plus an extra byte per scanline + possible padding bits*/ - *out = (unsigned char*)lodepng_malloc(*outsize); - if(!(*out) && (*outsize)) error = 83; /*alloc fail*/ - - if(!error) - { - /*non multiple of 8 bits per scanline, padding bits needed per scanline*/ - if(bpp < 8 && w * bpp != ((w * bpp + 7) / 8) * 8) - { - unsigned char* padded = (unsigned char*)lodepng_malloc(h * ((w * bpp + 7) / 8)); - if(!padded) error = 83; /*alloc fail*/ - if(!error) - { - addPaddingBits(padded, in, ((w * bpp + 7) / 8) * 8, w * bpp, h); - error = filter(*out, padded, w, h, &info_png->color, settings); - } - lodepng_free(padded); - } - else - { - /*we can immediately filter into the out buffer, no other steps needed*/ - error = filter(*out, in, w, h, &info_png->color, settings); - } - } - } - else /*interlace_method is 1 (Adam7)*/ - { - unsigned passw[7], passh[7]; - size_t filter_passstart[8], padded_passstart[8], passstart[8]; - unsigned char* adam7; - - Adam7_getpassvalues(passw, passh, filter_passstart, padded_passstart, passstart, w, h, bpp); - - *outsize = filter_passstart[7]; /*image size plus an extra byte per scanline + possible padding bits*/ - *out = (unsigned char*)lodepng_malloc(*outsize); - if(!(*out)) error = 83; /*alloc fail*/ - - adam7 = (unsigned char*)lodepng_malloc(passstart[7]); - if(!adam7 && passstart[7]) error = 83; /*alloc fail*/ - - if(!error) - { - unsigned i; - - Adam7_interlace(adam7, in, w, h, bpp); - for(i = 0; i != 7; ++i) - { - if(bpp < 8) - { - unsigned char* padded = (unsigned char*)lodepng_malloc(padded_passstart[i + 1] - padded_passstart[i]); - if(!padded) ERROR_BREAK(83); /*alloc fail*/ - addPaddingBits(padded, &adam7[passstart[i]], - ((passw[i] * bpp + 7) / 8) * 8, passw[i] * bpp, passh[i]); - error = filter(&(*out)[filter_passstart[i]], padded, - passw[i], passh[i], &info_png->color, settings); - lodepng_free(padded); - } - else - { - error = filter(&(*out)[filter_passstart[i]], &adam7[padded_passstart[i]], - passw[i], passh[i], &info_png->color, settings); - } - - if(error) break; - } - } - - lodepng_free(adam7); - } - - return error; -} - -/* -palette must have 4 * palettesize bytes allocated, and given in format RGBARGBARGBARGBA... -returns 0 if the palette is opaque, -returns 1 if the palette has a single color with alpha 0 ==> color key -returns 2 if the palette is semi-translucent. -*/ -static unsigned getPaletteTranslucency(const unsigned char* palette, size_t palettesize) -{ - size_t i; - unsigned key = 0; - unsigned r = 0, g = 0, b = 0; /*the value of the color with alpha 0, so long as color keying is possible*/ - for(i = 0; i != palettesize; ++i) - { - if(!key && palette[4 * i + 3] == 0) - { - r = palette[4 * i + 0]; g = palette[4 * i + 1]; b = palette[4 * i + 2]; - key = 1; - i = (size_t)(-1); /*restart from beginning, to detect earlier opaque colors with key's value*/ - } - else if(palette[4 * i + 3] != 255) return 2; - /*when key, no opaque RGB may have key's RGB*/ - else if(key && r == palette[i * 4 + 0] && g == palette[i * 4 + 1] && b == palette[i * 4 + 2]) return 2; - } - return key; -} - -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS -static unsigned addUnknownChunks(ucvector* out, unsigned char* data, size_t datasize) -{ - unsigned char* inchunk = data; - while((size_t)(inchunk - data) < datasize) - { - CERROR_TRY_RETURN(lodepng_chunk_append(&out->data, &out->size, inchunk)); - out->allocsize = out->size; /*fix the allocsize again*/ - inchunk = lodepng_chunk_next(inchunk); - } - return 0; -} -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - -unsigned lodepng_encode(unsigned char** out, size_t* outsize, - const unsigned char* image, unsigned w, unsigned h, - LodePNGState* state) -{ - LodePNGInfo info; - ucvector outv; - unsigned char* data = 0; /*uncompressed version of the IDAT chunk data*/ - size_t datasize = 0; - - /*provide some proper output values if error will happen*/ - *out = 0; - *outsize = 0; - state->error = 0; - - lodepng_info_init(&info); - lodepng_info_copy(&info, &state->info_png); - - if((info.color.colortype == LCT_PALETTE || state->encoder.force_palette) - && (info.color.palettesize == 0 || info.color.palettesize > 256)) - { - state->error = 68; /*invalid palette size, it is only allowed to be 1-256*/ - return state->error; - } - - if(state->encoder.auto_convert) - { - state->error = lodepng_auto_choose_color(&info.color, image, w, h, &state->info_raw); - } - if(state->error) return state->error; - - if(state->encoder.zlibsettings.btype > 2) - { - CERROR_RETURN_ERROR(state->error, 61); /*error: unexisting btype*/ - } - if(state->info_png.interlace_method > 1) - { - CERROR_RETURN_ERROR(state->error, 71); /*error: unexisting interlace mode*/ - } - - state->error = checkColorValidity(info.color.colortype, info.color.bitdepth); - if(state->error) return state->error; /*error: unexisting color type given*/ - state->error = checkColorValidity(state->info_raw.colortype, state->info_raw.bitdepth); - if(state->error) return state->error; /*error: unexisting color type given*/ - - if(!lodepng_color_mode_equal(&state->info_raw, &info.color)) - { - unsigned char* converted; - size_t size = (w * h * (size_t)lodepng_get_bpp(&info.color) + 7) / 8; - - converted = (unsigned char*)lodepng_malloc(size); - if(!converted && size) state->error = 83; /*alloc fail*/ - if(!state->error) - { - state->error = lodepng_convert(converted, image, &info.color, &state->info_raw, w, h); - } - if(!state->error) preProcessScanlines(&data, &datasize, converted, w, h, &info, &state->encoder); - lodepng_free(converted); - } - else preProcessScanlines(&data, &datasize, image, w, h, &info, &state->encoder); - - ucvector_init(&outv); - while(!state->error) /*while only executed once, to break on error*/ - { -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - size_t i; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*write signature and chunks*/ - writeSignature(&outv); - /*IHDR*/ - addChunk_IHDR(&outv, w, h, info.color.colortype, info.color.bitdepth, info.interlace_method); -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*unknown chunks between IHDR and PLTE*/ - if(info.unknown_chunks_data[0]) - { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[0], info.unknown_chunks_size[0]); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*PLTE*/ - if(info.color.colortype == LCT_PALETTE) - { - addChunk_PLTE(&outv, &info.color); - } - if(state->encoder.force_palette && (info.color.colortype == LCT_RGB || info.color.colortype == LCT_RGBA)) - { - addChunk_PLTE(&outv, &info.color); - } - /*tRNS*/ - if(info.color.colortype == LCT_PALETTE && getPaletteTranslucency(info.color.palette, info.color.palettesize) != 0) - { - addChunk_tRNS(&outv, &info.color); - } - if((info.color.colortype == LCT_GREY || info.color.colortype == LCT_RGB) && info.color.key_defined) - { - addChunk_tRNS(&outv, &info.color); - } -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*bKGD (must come between PLTE and the IDAt chunks*/ - if(info.background_defined) addChunk_bKGD(&outv, &info); - /*pHYs (must come before the IDAT chunks)*/ - if(info.phys_defined) addChunk_pHYs(&outv, &info); - - /*unknown chunks between PLTE and IDAT*/ - if(info.unknown_chunks_data[1]) - { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[1], info.unknown_chunks_size[1]); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - /*IDAT (multiple IDAT chunks must be consecutive)*/ - state->error = addChunk_IDAT(&outv, data, datasize, &state->encoder.zlibsettings); - if(state->error) break; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - /*tIME*/ - if(info.time_defined) addChunk_tIME(&outv, &info.time); - /*tEXt and/or zTXt*/ - for(i = 0; i != info.text_num; ++i) - { - if(strlen(info.text_keys[i]) > 79) - { - state->error = 66; /*text chunk too large*/ - break; - } - if(strlen(info.text_keys[i]) < 1) - { - state->error = 67; /*text chunk too small*/ - break; - } - if(state->encoder.text_compression) - { - addChunk_zTXt(&outv, info.text_keys[i], info.text_strings[i], &state->encoder.zlibsettings); - } - else - { - addChunk_tEXt(&outv, info.text_keys[i], info.text_strings[i]); - } - } - /*LodePNG version id in text chunk*/ - if(state->encoder.add_id) - { - unsigned alread_added_id_text = 0; - for(i = 0; i != info.text_num; ++i) - { - if(!strcmp(info.text_keys[i], "LodePNG")) - { - alread_added_id_text = 1; - break; - } - } - if(alread_added_id_text == 0) - { - addChunk_tEXt(&outv, "LodePNG", LODEPNG_VERSION_STRING); /*it's shorter as tEXt than as zTXt chunk*/ - } - } - /*iTXt*/ - for(i = 0; i != info.itext_num; ++i) - { - if(strlen(info.itext_keys[i]) > 79) - { - state->error = 66; /*text chunk too large*/ - break; - } - if(strlen(info.itext_keys[i]) < 1) - { - state->error = 67; /*text chunk too small*/ - break; - } - addChunk_iTXt(&outv, state->encoder.text_compression, - info.itext_keys[i], info.itext_langtags[i], info.itext_transkeys[i], info.itext_strings[i], - &state->encoder.zlibsettings); - } - - /*unknown chunks between IDAT and IEND*/ - if(info.unknown_chunks_data[2]) - { - state->error = addUnknownChunks(&outv, info.unknown_chunks_data[2], info.unknown_chunks_size[2]); - if(state->error) break; - } -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ - addChunk_IEND(&outv); - - break; /*this isn't really a while loop; no error happened so break out now!*/ - } - - lodepng_info_cleanup(&info); - lodepng_free(data); - /*instead of cleaning the vector up, give it to the output*/ - *out = outv.data; - *outsize = outv.size; - - return state->error; -} - -unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, const unsigned char* image, - unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned error; - LodePNGState state; - lodepng_state_init(&state); - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - state.info_png.color.colortype = colortype; - state.info_png.color.bitdepth = bitdepth; - lodepng_encode(out, outsize, image, w, h, &state); - error = state.error; - lodepng_state_cleanup(&state); - return error; -} - -unsigned lodepng_encode32(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h) -{ - return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGBA, 8); -} - -unsigned lodepng_encode24(unsigned char** out, size_t* outsize, const unsigned char* image, unsigned w, unsigned h) -{ - return lodepng_encode_memory(out, outsize, image, w, h, LCT_RGB, 8); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned lodepng_encode_file(const char* filename, const unsigned char* image, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode_memory(&buffer, &buffersize, image, w, h, colortype, bitdepth); - if(!error) error = lodepng_save_file(buffer, buffersize, filename); - lodepng_free(buffer); - return error; -} - -unsigned lodepng_encode32_file(const char* filename, const unsigned char* image, unsigned w, unsigned h) -{ - return lodepng_encode_file(filename, image, w, h, LCT_RGBA, 8); -} - -unsigned lodepng_encode24_file(const char* filename, const unsigned char* image, unsigned w, unsigned h) -{ - return lodepng_encode_file(filename, image, w, h, LCT_RGB, 8); -} -#endif /*LODEPNG_COMPILE_DISK*/ - -void lodepng_encoder_settings_init(LodePNGEncoderSettings* settings) -{ - lodepng_compress_settings_init(&settings->zlibsettings); - settings->filter_palette_zero = 1; - settings->filter_strategy = LFS_MINSUM; - settings->auto_convert = 1; - settings->force_palette = 0; - settings->predefined_filters = 0; -#ifdef LODEPNG_COMPILE_ANCILLARY_CHUNKS - settings->add_id = 0; - settings->text_compression = 1; -#endif /*LODEPNG_COMPILE_ANCILLARY_CHUNKS*/ -} - -#endif /*LODEPNG_COMPILE_ENCODER*/ -#endif /*LODEPNG_COMPILE_PNG*/ - -#ifdef LODEPNG_COMPILE_ERROR_TEXT -/* -This returns the description of a numerical error code in English. This is also -the documentation of all the error codes. -*/ -const char* lodepng_error_text(unsigned code) -{ - switch(code) - { - case 0: return "no error, everything went ok"; - case 1: return "nothing done yet"; /*the Encoder/Decoder has done nothing yet, error checking makes no sense yet*/ - case 10: return "end of input memory reached without huffman end code"; /*while huffman decoding*/ - case 11: return "error in code tree made it jump outside of huffman tree"; /*while huffman decoding*/ - case 13: return "problem while processing dynamic deflate block"; - case 14: return "problem while processing dynamic deflate block"; - case 15: return "problem while processing dynamic deflate block"; - case 16: return "unexisting code while processing dynamic deflate block"; - case 17: return "end of out buffer memory reached while inflating"; - case 18: return "invalid distance code while inflating"; - case 19: return "end of out buffer memory reached while inflating"; - case 20: return "invalid deflate block BTYPE encountered while decoding"; - case 21: return "NLEN is not ones complement of LEN in a deflate block"; - /*end of out buffer memory reached while inflating: - This can happen if the inflated deflate data is longer than the amount of bytes required to fill up - all the pixels of the image, given the color depth and image dimensions. Something that doesn't - happen in a normal, well encoded, PNG image.*/ - case 22: return "end of out buffer memory reached while inflating"; - case 23: return "end of in buffer memory reached while inflating"; - case 24: return "invalid FCHECK in zlib header"; - case 25: return "invalid compression method in zlib header"; - case 26: return "FDICT encountered in zlib header while it's not used for PNG"; - case 27: return "PNG file is smaller than a PNG header"; - /*Checks the magic file header, the first 8 bytes of the PNG file*/ - case 28: return "incorrect PNG signature, it's no PNG or corrupted"; - case 29: return "first chunk is not the header chunk"; - case 30: return "chunk length too large, chunk broken off at end of file"; - case 31: return "illegal PNG color type or bpp"; - case 32: return "illegal PNG compression method"; - case 33: return "illegal PNG filter method"; - case 34: return "illegal PNG interlace method"; - case 35: return "chunk length of a chunk is too large or the chunk too small"; - case 36: return "illegal PNG filter type encountered"; - case 37: return "illegal bit depth for this color type given"; - case 38: return "the palette is too big"; /*more than 256 colors*/ - case 39: return "more palette alpha values given in tRNS chunk than there are colors in the palette"; - case 40: return "tRNS chunk has wrong size for greyscale image"; - case 41: return "tRNS chunk has wrong size for RGB image"; - case 42: return "tRNS chunk appeared while it was not allowed for this color type"; - case 43: return "bKGD chunk has wrong size for palette image"; - case 44: return "bKGD chunk has wrong size for greyscale image"; - case 45: return "bKGD chunk has wrong size for RGB image"; - case 48: return "empty input buffer given to decoder. Maybe caused by non-existing file?"; - case 49: return "jumped past memory while generating dynamic huffman tree"; - case 50: return "jumped past memory while generating dynamic huffman tree"; - case 51: return "jumped past memory while inflating huffman block"; - case 52: return "jumped past memory while inflating"; - case 53: return "size of zlib data too small"; - case 54: return "repeat symbol in tree while there was no value symbol yet"; - /*jumped past tree while generating huffman tree, this could be when the - tree will have more leaves than symbols after generating it out of the - given lenghts. They call this an oversubscribed dynamic bit lengths tree in zlib.*/ - case 55: return "jumped past tree while generating huffman tree"; - case 56: return "given output image colortype or bitdepth not supported for color conversion"; - case 57: return "invalid CRC encountered (checking CRC can be disabled)"; - case 58: return "invalid ADLER32 encountered (checking ADLER32 can be disabled)"; - case 59: return "requested color conversion not supported"; - case 60: return "invalid window size given in the settings of the encoder (must be 0-32768)"; - case 61: return "invalid BTYPE given in the settings of the encoder (only 0, 1 and 2 are allowed)"; - /*LodePNG leaves the choice of RGB to greyscale conversion formula to the user.*/ - case 62: return "conversion from color to greyscale not supported"; - case 63: return "length of a chunk too long, max allowed for PNG is 2147483647 bytes per chunk"; /*(2^31-1)*/ - /*this would result in the inability of a deflated block to ever contain an end code. It must be at least 1.*/ - case 64: return "the length of the END symbol 256 in the Huffman tree is 0"; - case 66: return "the length of a text chunk keyword given to the encoder is longer than the maximum of 79 bytes"; - case 67: return "the length of a text chunk keyword given to the encoder is smaller than the minimum of 1 byte"; - case 68: return "tried to encode a PLTE chunk with a palette that has less than 1 or more than 256 colors"; - case 69: return "unknown chunk type with 'critical' flag encountered by the decoder"; - case 71: return "unexisting interlace mode given to encoder (must be 0 or 1)"; - case 72: return "while decoding, unexisting compression method encountering in zTXt or iTXt chunk (it must be 0)"; - case 73: return "invalid tIME chunk size"; - case 74: return "invalid pHYs chunk size"; - /*length could be wrong, or data chopped off*/ - case 75: return "no null termination char found while decoding text chunk"; - case 76: return "iTXt chunk too short to contain required bytes"; - case 77: return "integer overflow in buffer size"; - case 78: return "failed to open file for reading"; /*file doesn't exist or couldn't be opened for reading*/ - case 79: return "failed to open file for writing"; - case 80: return "tried creating a tree of 0 symbols"; - case 81: return "lazy matching at pos 0 is impossible"; - case 82: return "color conversion to palette requested while a color isn't in palette"; - case 83: return "memory allocation failed"; - case 84: return "given image too small to contain all pixels to be encoded"; - case 86: return "impossible offset in lz77 encoding (internal bug)"; - case 87: return "must provide custom zlib function pointer if LODEPNG_COMPILE_ZLIB is not defined"; - case 88: return "invalid filter strategy given for LodePNGEncoderSettings.filter_strategy"; - case 89: return "text chunk keyword too short or long: must have size 1-79"; - /*the windowsize in the LodePNGCompressSettings. Requiring POT(==> & instead of %) makes encoding 12% faster.*/ - case 90: return "windowsize must be a power of two"; - case 91: return "invalid decompressed idat size"; - case 92: return "too many pixels, not supported"; - case 93: return "zero width or height is invalid"; - case 94: return "header chunk must have a size of 13 bytes"; - } - return "unknown error code"; -} -#endif /*LODEPNG_COMPILE_ERROR_TEXT*/ - -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* // C++ Wrapper // */ -/* ////////////////////////////////////////////////////////////////////////// */ -/* ////////////////////////////////////////////////////////////////////////// */ - -#ifdef LODEPNG_COMPILE_CPP -namespace lodepng -{ - -#ifdef LODEPNG_COMPILE_DISK -unsigned load_file(std::vector& buffer, const std::string& filename) -{ - long size = lodepng_filesize(filename.c_str()); - if(size < 0) return 78; - buffer.resize((size_t)size); - return size == 0 ? 0 : lodepng_buffer_file(&buffer[0], (size_t)size, filename.c_str()); -} - -/*write given buffer to the file, overwriting the file, it doesn't append to it.*/ -unsigned save_file(const std::vector& buffer, const std::string& filename) -{ - return lodepng_save_file(buffer.empty() ? 0 : &buffer[0], buffer.size(), filename.c_str()); -} -#endif /* LODEPNG_COMPILE_DISK */ - -#ifdef LODEPNG_COMPILE_ZLIB -#ifdef LODEPNG_COMPILE_DECODER -unsigned decompress(std::vector& out, const unsigned char* in, size_t insize, - const LodePNGDecompressSettings& settings) -{ - unsigned char* buffer = 0; - size_t buffersize = 0; - unsigned error = zlib_decompress(&buffer, &buffersize, in, insize, &settings); - if(buffer) - { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned decompress(std::vector& out, const std::vector& in, - const LodePNGDecompressSettings& settings) -{ - return decompress(out, in.empty() ? 0 : &in[0], in.size(), settings); -} -#endif /* LODEPNG_COMPILE_DECODER */ - -#ifdef LODEPNG_COMPILE_ENCODER -unsigned compress(std::vector& out, const unsigned char* in, size_t insize, - const LodePNGCompressSettings& settings) -{ - unsigned char* buffer = 0; - size_t buffersize = 0; - unsigned error = zlib_compress(&buffer, &buffersize, in, insize, &settings); - if(buffer) - { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned compress(std::vector& out, const std::vector& in, - const LodePNGCompressSettings& settings) -{ - return compress(out, in.empty() ? 0 : &in[0], in.size(), settings); -} -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_ZLIB */ - - -#ifdef LODEPNG_COMPILE_PNG - -State::State() -{ - lodepng_state_init(this); -} - -State::State(const State& other) -{ - lodepng_state_init(this); - lodepng_state_copy(this, &other); -} - -State::~State() -{ - lodepng_state_cleanup(this); -} - -State& State::operator=(const State& other) -{ - lodepng_state_copy(this, &other); - return *this; -} - -#ifdef LODEPNG_COMPILE_DECODER - -unsigned decode(std::vector& out, unsigned& w, unsigned& h, const unsigned char* in, - size_t insize, LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned char* buffer; - unsigned error = lodepng_decode_memory(&buffer, &w, &h, in, insize, colortype, bitdepth); - if(buffer && !error) - { - State state; - state.info_raw.colortype = colortype; - state.info_raw.bitdepth = bitdepth; - size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw); - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - const std::vector& in, LodePNGColorType colortype, unsigned bitdepth) -{ - return decode(out, w, h, in.empty() ? 0 : &in[0], (unsigned)in.size(), colortype, bitdepth); -} - -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - State& state, - const unsigned char* in, size_t insize) -{ - unsigned char* buffer = NULL; - unsigned error = lodepng_decode(&buffer, &w, &h, &state, in, insize); - if(buffer && !error) - { - size_t buffersize = lodepng_get_raw_size(w, h, &state.info_raw); - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - } - lodepng_free(buffer); - return error; -} - -unsigned decode(std::vector& out, unsigned& w, unsigned& h, - State& state, - const std::vector& in) -{ - return decode(out, w, h, state, in.empty() ? 0 : &in[0], in.size()); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned decode(std::vector& out, unsigned& w, unsigned& h, const std::string& filename, - LodePNGColorType colortype, unsigned bitdepth) -{ - std::vector buffer; - unsigned error = load_file(buffer, filename); - if(error) return error; - return decode(out, w, h, buffer, colortype, bitdepth); -} -#endif /* LODEPNG_COMPILE_DECODER */ -#endif /* LODEPNG_COMPILE_DISK */ - -#ifdef LODEPNG_COMPILE_ENCODER -unsigned encode(std::vector& out, const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) -{ - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode_memory(&buffer, &buffersize, in, w, h, colortype, bitdepth); - if(buffer) - { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned encode(std::vector& out, - const std::vector& in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) -{ - if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84; - return encode(out, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth); -} - -unsigned encode(std::vector& out, - const unsigned char* in, unsigned w, unsigned h, - State& state) -{ - unsigned char* buffer; - size_t buffersize; - unsigned error = lodepng_encode(&buffer, &buffersize, in, w, h, &state); - if(buffer) - { - out.insert(out.end(), &buffer[0], &buffer[buffersize]); - lodepng_free(buffer); - } - return error; -} - -unsigned encode(std::vector& out, - const std::vector& in, unsigned w, unsigned h, - State& state) -{ - if(lodepng_get_raw_size(w, h, &state.info_raw) > in.size()) return 84; - return encode(out, in.empty() ? 0 : &in[0], w, h, state); -} - -#ifdef LODEPNG_COMPILE_DISK -unsigned encode(const std::string& filename, - const unsigned char* in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) -{ - std::vector buffer; - unsigned error = encode(buffer, in, w, h, colortype, bitdepth); - if(!error) error = save_file(buffer, filename); - return error; -} - -unsigned encode(const std::string& filename, - const std::vector& in, unsigned w, unsigned h, - LodePNGColorType colortype, unsigned bitdepth) -{ - if(lodepng_get_raw_size_lct(w, h, colortype, bitdepth) > in.size()) return 84; - return encode(filename, in.empty() ? 0 : &in[0], w, h, colortype, bitdepth); -} -#endif /* LODEPNG_COMPILE_DISK */ -#endif /* LODEPNG_COMPILE_ENCODER */ -#endif /* LODEPNG_COMPILE_PNG */ -} /* namespace lodepng */ -#endif /*LODEPNG_COMPILE_CPP*/ diff --git a/screenshot/src/screenshot.cpp b/screenshot/src/screenshot.cpp deleted file mode 100755 index ab1da62..0000000 --- a/screenshot/src/screenshot.cpp +++ /dev/null @@ -1,166 +0,0 @@ -// copyright britzl -// Extension lib defines -#define LIB_NAME "Screenshot" -#define MODULE_NAME "screenshot" - -// include the Defold SDK -#include -#include -#include "./lodepng.h" - - -static GLubyte* ReadPixels(unsigned int x, unsigned int y, unsigned int w, unsigned int h) { - GLubyte* data = new GLubyte[w * h * 4]; - glReadPixels(x, y, w, h, GL_RGBA, GL_UNSIGNED_BYTE, data); - return data; -} - -static int Pixels(lua_State* L) { - int top = lua_gettop(L); - - // read pixels - const int x = luaL_checkint(L, 1); - const int y = luaL_checkint(L, 2); - const int w = luaL_checkint(L, 3); - const int h = luaL_checkint(L, 4); - GLubyte* pixels = ReadPixels(x, y, w, h); - - // Put the pixel data onto the stack - lua_pushlstring(L, (char*)pixels, w * h); - delete pixels; - - // Assert that there is one item on the stack. - assert(top + 1 == lua_gettop(L)); - - // Return 1 item - return 1; -} - -static int Png(lua_State* L) { - int top = lua_gettop(L); - - // read pixels - const int x = luaL_checkint(L, 1); - const int y = luaL_checkint(L, 2); - const int w = luaL_checkint(L, 3); - const int h = luaL_checkint(L, 4); - GLubyte* pixels = ReadPixels(x, y, w, h); - unsigned int *p = (unsigned int*)pixels; - - // flip vertically - for (int yi=0; yi < (h / 2); yi++) { - for (int xi=0; xi < w; xi++) { - unsigned int offset1 = xi + (yi * w); - unsigned int offset2 = xi + ((h - 1 - yi) * w); - unsigned int pixel1 = p[offset1]; - unsigned int pixel2 = p[offset2]; - p[offset1] = pixel2; - p[offset2] = pixel1; - } - } - - // encode to png - unsigned char* out = 0; - size_t outsize = 0; - lodepng_encode_memory(&out, &outsize, pixels, w, h, LCT_RGBA, 8); - delete pixels; - - // Put the pixel data onto the stack - lua_pushlstring(L, (char*)out, outsize); - - // Assert that there is one item on the stack. - assert(top + 1 == lua_gettop(L)); - - // Return 1 item - return 1; -} - -static int Buffer(lua_State* L) { - int top = lua_gettop(L); - - // read pixels - const int x = luaL_checkint(L, 1); - const int y = luaL_checkint(L, 2); - const int w = luaL_checkint(L, 3); - const int h = luaL_checkint(L, 4); - GLubyte* pixels = ReadPixels(x, y, w, h); - - // create buffer - dmBuffer::HBuffer buffer; - dmBuffer::StreamDeclaration streams_decl[] = { - { dmHashString64("pixels"), dmBuffer::VALUE_TYPE_UINT8, 1 } - }; - dmBuffer::Result r = dmBuffer::Allocate(w * h * 4, streams_decl, 1, &buffer); - if (r == dmBuffer::RESULT_OK) { - // copy pixels into buffer - uint8_t* data = 0; - uint32_t datasize = 0; - dmBuffer::GetBytes(buffer, (void**)&data, &datasize); - memcpy(data, pixels, datasize); - delete pixels; - - // validate and return - if (dmBuffer::ValidateBuffer(buffer) == dmBuffer::RESULT_OK) { - dmScript::PushBuffer(L, buffer); - } - else { - lua_pushnil(L); - } - } - // buffer creation failed - else { - delete pixels; - lua_pushnil(L); - } - - // Assert that there is one item on the stack. - assert(top + 1 == lua_gettop(L)); - - // Return 1 item - return 1; -} - - -// Functions exposed to Lua -static const luaL_reg Module_methods[] = { - {"pixels", Pixels}, - {"png", Png}, - {"buffer", Buffer}, - {0, 0} -}; - -static void LuaInit(lua_State* L) { - int top = lua_gettop(L); - - // Register lua names - luaL_register(L, MODULE_NAME, Module_methods); - - lua_pop(L, 1); - assert(top == lua_gettop(L)); -} - -dmExtension::Result AppInitializeExtension(dmExtension::AppParams* params) { - return dmExtension::RESULT_OK; -} - -dmExtension::Result InitializeExtension(dmExtension::Params* params) { - // Init Lua - LuaInit(params->m_L); - printf("Registered %s Extension\n", MODULE_NAME); - return dmExtension::RESULT_OK; -} - -dmExtension::Result AppFinalizeExtension(dmExtension::AppParams* params) { - return dmExtension::RESULT_OK; -} - -dmExtension::Result FinalizeExtension(dmExtension::Params* params) { - return dmExtension::RESULT_OK; -} - - -// Defold SDK uses a macro for setting up extension entry points: -// -// DM_DECLARE_EXTENSION(symbol, name, app_init, app_final, init, update, on_event, final) - -DM_DECLARE_EXTENSION(Screenshot, LIB_NAME, AppInitializeExtension, AppFinalizeExtension, InitializeExtension, 0, 0, FinalizeExtension)