Partydeck/Camera-Extension
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mirror of https://github.com/defold/extension-camera synced 2025-09-27 08:52:19 +02:00
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This commit is contained in:
Björn Ritzl
2020-07-13 01:08:54 +02:00
parent 4ef2a427e7
commit 7258633994
6 changed files with 220 additions and 62 deletions
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101
camera/src/camera.cpp
View File

@@ -26,26 +26,69 @@ struct DefoldCamera
// Information about the currently set camera
CameraInfo m_Params;
dmArray<CameraStatus> m_MessageQueue;
dmScript::LuaCallbackInfo* m_Callback;
dmMutex::HMutex m_Mutex;
};
DefoldCamera g_DefoldCamera;
void Camera_QueueMessage(CameraStatus status)
{
DM_MUTEX_SCOPED_LOCK(g_DefoldCamera.m_Mutex);
if (g_DefoldCamera.m_MessageQueue.Full())
{
g_DefoldCamera.m_MessageQueue.OffsetCapacity(1);
}
g_DefoldCamera.m_MessageQueue.Push(status);
}
static void Camera_ProcessQueue()
{
DM_MUTEX_SCOPED_LOCK(g_DefoldCamera.m_Mutex);
for (uint32_t i = 0; i != g_DefoldCamera.m_MessageQueue.Size(); ++i)
{
lua_State* L = dmScript::GetCallbackLuaContext(g_DefoldCamera.m_Callback);
if (!dmScript::SetupCallback(g_DefoldCamera.m_Callback))
{
break;
}
CameraStatus status = g_DefoldCamera.m_MessageQueue[i];
lua_pushnumber(L, (lua_Number)status);
int ret = lua_pcall(L, 2, 0, 0);
if (ret != 0)
{
lua_pop(L, 1);
}
dmScript::TeardownCallback(g_DefoldCamera.m_Callback);
}
g_DefoldCamera.m_MessageQueue.SetSize(0);
}
static void Camera_DestroyCallback()
{
if (g_DefoldCamera.m_Callback != 0)
{
dmScript::DestroyCallback(g_DefoldCamera.m_Callback);
g_DefoldCamera.m_Callback = 0;
}
}
static int StartCapture(lua_State* L)
{
DM_LUA_STACK_CHECK(L, 1);
DM_LUA_STACK_CHECK(L, 0);
CameraType type = (CameraType) luaL_checkint(L, 1);
CaptureQuality quality = (CaptureQuality)luaL_checkint(L, 2);
int status = CameraPlatform_StartCapture(&g_DefoldCamera.m_VideoBuffer, type, quality, g_DefoldCamera.m_Params);
Camera_DestroyCallback();
g_DefoldCamera.m_Callback = dmScript::CreateCallback(L, 3);
lua_pushboolean(L, status > 0);
if( status == 0 )
{
dmLogError("capture failed!\n");
return 1;
}
CameraPlatform_StartCapture(&g_DefoldCamera.m_VideoBuffer, type, quality, g_DefoldCamera.m_Params);
// Increase ref count
dmScript::LuaHBuffer luabuffer = {g_DefoldCamera.m_VideoBuffer, false};
@@ -59,14 +102,9 @@ static int StopCapture(lua_State* L)
{
DM_LUA_STACK_CHECK(L, 0);
int status = CameraPlatform_StopCapture();
if( !status )
{
return luaL_error(L, "Failed to stop capture. Was it started?");
}
CameraPlatform_StopCapture();
dmScript::Unref(L, LUA_REGISTRYINDEX, g_DefoldCamera.m_VideoBufferLuaRef); // We want it destroyed by the GC
return 0;
}
@@ -94,7 +132,7 @@ static int GetInfo(lua_State* L)
static int GetFrame(lua_State* L)
{
DM_LUA_STACK_CHECK(L, 1);
lua_rawgeti(L,LUA_REGISTRYINDEX, g_DefoldCamera.m_VideoBufferLuaRef);
lua_rawgeti(L,LUA_REGISTRYINDEX, g_DefoldCamera.m_VideoBufferLuaRef);
return 1;
}
@@ -113,9 +151,9 @@ static void LuaInit(lua_State* L)
int top = lua_gettop(L);
luaL_register(L, MODULE_NAME, Module_methods);
#define SETCONSTANT(name) \
lua_pushnumber(L, (lua_Number) name); \
lua_setfield(L, -2, #name);\
#define SETCONSTANT(name) \
lua_pushnumber(L, (lua_Number) name); \
lua_setfield(L, -2, #name);\
SETCONSTANT(CAMERA_TYPE_FRONT)
SETCONSTANT(CAMERA_TYPE_BACK)
@@ -124,7 +162,12 @@ static void LuaInit(lua_State* L)
SETCONSTANT(CAPTURE_QUALITY_MEDIUM)
SETCONSTANT(CAPTURE_QUALITY_HIGH)
#undef SETCONSTANT
SETCONSTANT(STATUS_STARTED)
SETCONSTANT(STATUS_STOPPED)
SETCONSTANT(STATUS_NOT_PERMITTED)
SETCONSTANT(STATUS_ERROR)
#undef SETCONSTANT
lua_pop(L, 1);
assert(top == lua_gettop(L));
@@ -132,12 +175,20 @@ static void LuaInit(lua_State* L)
dmExtension::Result AppInitializeCamera(dmExtension::AppParams* params)
{
dmLogInfo("Registered %s Extension", MODULE_NAME);
return dmExtension::RESULT_OK;
}
dmExtension::Result InitializeCamera(dmExtension::Params* params)
{
LuaInit(params->m_L);
g_DefoldCamera.m_Mutex = dmMutex::New();
return dmExtension::RESULT_OK;
}
static dmExtension::Result UpdateCamera(dmExtension::Params* params)
{
Camera_ProcessQueue();
return dmExtension::RESULT_OK;
}
@@ -148,6 +199,8 @@ dmExtension::Result AppFinalizeCamera(dmExtension::AppParams* params)
dmExtension::Result FinalizeCamera(dmExtension::Params* params)
{
dmMutex::Delete(g_DefoldCamera.m_Mutex);
Camera_DestroyCallback();
return dmExtension::RESULT_OK;
}
@@ -156,7 +209,7 @@ dmExtension::Result FinalizeCamera(dmExtension::Params* params)
static dmExtension::Result AppInitializeCamera(dmExtension::AppParams* params)
{
dmLogInfo("Registered %s (null) Extension\n", MODULE_NAME);
dmLogInfo("Registered %s (null) Extension", MODULE_NAME);
return dmExtension::RESULT_OK;
}
@@ -165,6 +218,12 @@ static dmExtension::Result InitializeCamera(dmExtension::Params* params)
return dmExtension::RESULT_OK;
}
static dmExtension::Result UpdateCamera(dmExtension::Params* params)
{
Camera_ProcessQueue()
return dmExtension::RESULT_OK;
}
static dmExtension::Result AppFinalizeCamera(dmExtension::AppParams* params)
{
return dmExtension::RESULT_OK;
@@ -178,4 +237,4 @@ static dmExtension::Result FinalizeCamera(dmExtension::Params* params)
#endif // platforms
DM_DECLARE_EXTENSION(EXTENSION_NAME, LIB_NAME, AppInitializeCamera, AppFinalizeCamera, InitializeCamera, 0, 0, FinalizeCamera)
DM_DECLARE_EXTENSION(EXTENSION_NAME, LIB_NAME, AppInitializeCamera, AppFinalizeCamera, InitializeCamera, UpdateCamera, 0, FinalizeCamera)

63
camera/src/camera.mm
View File

@@ -121,11 +121,10 @@ IOSCamera g_Camera;
}
}
- (void)captureOutput:(AVCaptureOutput *)captureOutput
didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
- (void)captureOutput:(AVCaptureOutput *)captureOutput
didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
fromConnection:(AVCaptureConnection *)connection
{
//NSLog(@"DROPPING FRAME!!!");
}
@@ -256,7 +255,7 @@ IOSCamera g_Camera;
static CMVideoDimensions FlipCoords(AVCaptureVideoDataOutput* output, const CMVideoDimensions& in)
{
CMVideoDimensions out = in;
CMVideoDimensions out = in;
#if defined(DM_PLATFORM_IOS)
AVCaptureConnection* conn = [output connectionWithMediaType:AVMediaTypeVideo];
switch (conn.videoOrientation) {
@@ -274,7 +273,7 @@ static CMVideoDimensions FlipCoords(AVCaptureVideoDataOutput* output, const CMVi
- ( BOOL ) startCamera: (AVCaptureDevicePosition) cameraPosition
quality: (CaptureQuality)quality
quality: (CaptureQuality)quality
{
// 1. Find the back camera
if ( ![ self findCamera: cameraPosition ] )
@@ -352,7 +351,7 @@ static CMVideoDimensions FlipCoords(AVCaptureVideoDataOutput* output, const CMVi
@end
int CameraPlatform_StartCapture(dmBuffer::HBuffer* buffer, CameraType type, CaptureQuality quality, CameraInfo& outparams)
void CameraPlatform_StartCaptureAuthorized(dmBuffer::HBuffer* buffer, CameraType type, CaptureQuality quality, CameraInfo& outparams)
{
if(g_Camera.m_Delegate == 0)
{
@@ -381,10 +380,57 @@ int CameraPlatform_StartCapture(dmBuffer::HBuffer* buffer, CameraType type, Capt
g_Camera.m_VideoBuffer = *buffer;
return started ? 1 : 0;
if (started)
{
Camera_QueueMessage(STATUS_STARTED);
}
else
{
Camera_QueueMessage(STATUS_ERROR);
}
}
int CameraPlatform_StopCapture()
void CameraPlatform_StartCapture(dmBuffer::HBuffer* buffer, CameraType type, CaptureQuality quality, CameraInfo& outparams)
{
// Request permission to access the camera.
int status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
if (status == AVAuthorizationStatusAuthorized)
{
// The user has previously granted access to the camera.
dmLogInfo("AVAuthorizationStatusAuthorized");
CameraPlatform_StartCaptureAuthorized(buffer, type, quality, outparams);
}
else if (status == AVAuthorizationStatusNotDetermined)
{
dmLogInfo("AVAuthorizationStatusNotDetermined");
// The app hasn't yet asked the user for camera access.
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
if (granted) {
dmLogInfo("AVAuthorizationStatusNotDetermined - granted!");
CameraPlatform_StartCaptureAuthorized(buffer, type, quality, outparams);
}
else
{
dmLogInfo("AVAuthorizationStatusNotDetermined - not granted!");
Camera_QueueMessage(STATUS_NOT_PERMITTED);
}
}];
}
else if (status == AVAuthorizationStatusDenied)
{
// The user has previously denied access.
dmLogInfo("AVAuthorizationStatusDenied");
Camera_QueueMessage(STATUS_NOT_PERMITTED);
}
else if (status == AVAuthorizationStatusRestricted)
{
// The user can't grant access due to restrictions.
dmLogInfo("AVAuthorizationStatusRestricted");
Camera_QueueMessage(STATUS_NOT_PERMITTED);
}
}
void CameraPlatform_StopCapture()
{
if(g_Camera.m_Delegate != 0)
{
@@ -395,7 +441,6 @@ int CameraPlatform_StopCapture()
dmBuffer::Destroy(g_Camera.m_VideoBuffer);
g_Camera.m_VideoBuffer = 0;
}
return 1;
}
#endif // DM_PLATFORM_IOS/DM_PLATFORM_OSX

14
camera/src/camera_private.h
View File

@@ -22,5 +22,15 @@ struct CameraInfo
CameraType m_Type;
};
extern int CameraPlatform_StartCapture(dmBuffer::HBuffer* buffer, CameraType type, CaptureQuality quality, CameraInfo& outparams);
extern int CameraPlatform_StopCapture();
enum CameraStatus
{
STATUS_STARTED,
STATUS_STOPPED,
STATUS_NOT_PERMITTED,
STATUS_ERROR
};
extern void CameraPlatform_StartCapture(dmBuffer::HBuffer* buffer, CameraType type, CaptureQuality quality, CameraInfo& outparams);
extern void CameraPlatform_StopCapture();
void Camera_QueueMessage(CameraStatus message);