Fixed crash when running start_capture a second time

camera/src/camera.mm

@@ -390,6 +390,7 @@ int CameraPlatform_StopCapture()
 	{
         [g_Camera.m_Delegate stopCamera];
         [g_Camera.m_Delegate release];
+        g_Camera.m_Delegate = 0;
 
         dmBuffer::Destroy(g_Camera.m_VideoBuffer);
         g_Camera.m_VideoBuffer = 0;

input/game.input_binding

@@ -0,0 +1,12 @@
+key_trigger {
+  input: KEY_SPACE
+  action: "space"
+}
+mouse_trigger {
+  input: MOUSE_BUTTON_1
+  action: "touch"
+}
+touch_trigger {
+  input: TOUCH_MULTI
+  action: "touch"
+}

main/main.collection

@@ -77,6 +77,116 @@ embedded_instances {
   "    w: 1.0\n"
   "  }\n"
   "}\n"
+  "embedded_components {\n"
+  "  id: \"label\"\n"
+  "  type: \"label\"\n"
+  "  data: \"size {\\n"
+  "  x: 128.0\\n"
+  "  y: 32.0\\n"
+  "  z: 0.0\\n"
+  "  w: 0.0\\n"
+  "}\\n"
+  "scale {\\n"
+  "  x: 1.0\\n"
+  "  y: 1.0\\n"
+  "  z: 1.0\\n"
+  "  w: 0.0\\n"
+  "}\\n"
+  "color {\\n"
+  "  x: 1.0\\n"
+  "  y: 1.0\\n"
+  "  z: 1.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "outline {\\n"
+  "  x: 0.0\\n"
+  "  y: 0.0\\n"
+  "  z: 0.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "shadow {\\n"
+  "  x: 0.0\\n"
+  "  y: 0.0\\n"
+  "  z: 0.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "leading: 1.0\\n"
+  "tracking: 0.0\\n"
+  "pivot: PIVOT_NW\\n"
+  "blend_mode: BLEND_MODE_ALPHA\\n"
+  "line_break: false\\n"
+  "text: \\\"Space/Touch to toggle capture\\\"\\n"
+  "font: \\\"/builtins/fonts/system_font.font\\\"\\n"
+  "material: \\\"/builtins/fonts/label.material\\\"\\n"
+  "\"\n"
+  "  position {\n"
+  "    x: 90.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
+  "embedded_components {\n"
+  "  id: \"status\"\n"
+  "  type: \"label\"\n"
+  "  data: \"size {\\n"
+  "  x: 128.0\\n"
+  "  y: 32.0\\n"
+  "  z: 0.0\\n"
+  "  w: 0.0\\n"
+  "}\\n"
+  "scale {\\n"
+  "  x: 1.0\\n"
+  "  y: 1.0\\n"
+  "  z: 1.0\\n"
+  "  w: 0.0\\n"
+  "}\\n"
+  "color {\\n"
+  "  x: 1.0\\n"
+  "  y: 1.0\\n"
+  "  z: 1.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "outline {\\n"
+  "  x: 0.0\\n"
+  "  y: 0.0\\n"
+  "  z: 0.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "shadow {\\n"
+  "  x: 0.0\\n"
+  "  y: 0.0\\n"
+  "  z: 0.0\\n"
+  "  w: 1.0\\n"
+  "}\\n"
+  "leading: 1.0\\n"
+  "tracking: 0.0\\n"
+  "pivot: PIVOT_NW\\n"
+  "blend_mode: BLEND_MODE_ALPHA\\n"
+  "line_break: false\\n"
+  "text: \\\"label\\\\n"
+  "\\\"\\n"
+  "  \\\"\\\"\\n"
+  "font: \\\"/builtins/fonts/system_font.font\\\"\\n"
+  "material: \\\"/builtins/fonts/label.material\\\"\\n"
+  "\"\n"
+  "  position {\n"
+  "    x: 90.0\n"
+  "    y: -24.0\n"
+  "    z: 0.0\n"
+  "  }\n"
+  "  rotation {\n"
+  "    x: 0.0\n"
+  "    y: 0.0\n"
+  "    z: 0.0\n"
+  "    w: 1.0\n"
+  "  }\n"
+  "}\n"
   ""
   position {
     x: 95.39966

main/main.script

@@ -1,12 +1,20 @@
 
-function init(self)
+local function stop_capture(self)
-    local logosize = 128
+    if self.cameraframe == nil then
-    local screen_width = sys.get_config("display.width", 600)
+        return
-    local screen_height = sys.get_config("display.height", 800)
+    end
-    local scale_width = screen_width / logosize
+
-    local scale_height = screen_height / logosize
+    self.cameraframe = nil
+    camera.stop_capture()
     
-    go.set("#sprite", "scale", vmath.vector3(scale_width, scale_height, 1) )
+    label.set_text("logo#status", "Capture Status: OFF")
+end
+
+
+local function start_capture(self)
+    if self.cameraframe ~= nil then
+        return
+    end
     
     if camera ~= nil then
 
@@ -20,22 +28,39 @@ function init(self)
         end
         
         if camera.start_capture(type, quality) then
-	        self.cameraframe = camera.get_frame()
+            self.cameraframe = camera.get_frame()
-	        self.camerainfo = camera.get_info()
+            self.camerainfo = camera.get_info()
-	        print("Initialized camera")
+            print("Initialized camera")
-	        pprint(self.camerainfo)    
+            pprint(self.camerainfo)    
-	        
+            
-	        self.cameratextureheader = {width=self.camerainfo.width,
+            self.cameratextureheader = {width=self.camerainfo.width,
-	                                    height=self.camerainfo.height,
+                                        height=self.camerainfo.height,
-	                                    type=resource.TEXTURE_TYPE_2D,
+                                        type=resource.TEXTURE_TYPE_2D,
-	                                    format=resource.TEXTURE_FORMAT_RGB,
+                                        format=resource.TEXTURE_FORMAT_RGB,
-	                                    num_mip_maps=1 }
+                                        num_mip_maps=1 }
         end
+    	label.set_text("logo#status", "Capture Status: ON")
     else
         print("could not start camera capture")
+    	label.set_text("logo#status", "Capture Status: UNAVAILABLE")
     end
 end
 
+function init(self)
+    msg.post(".", "acquire_input_focus")
+
+    local logosize = 128
+    local screen_width = sys.get_config("display.width", 600)
+    local screen_height = sys.get_config("display.height", 800)
+    local scale_width = screen_width / logosize
+    local scale_height = screen_height / logosize
+    
+    go.set("#sprite", "scale", vmath.vector3(scale_width, scale_height, 1) )
+
+
+    start_capture(self)
+end
+
 function final(self)
     if self.cameraframe ~= nil then
         camera.stop_capture()
@@ -44,10 +69,20 @@ end
 
 
 function update(self, dt)
-    if self.cameraframe then
+    if self.cameraframe ~= nil then
         local pathmodelcamera = go.get("#sprite", "texture0")
         resource.set_texture(pathmodelcamera, self.cameratextureheader, self.cameraframe)
     end
     
-    
+end
+
+
+function on_input(self, action_id, action)
+    if (action_id == hash("space") or action_id == hash("touch")) and action.pressed then
+        if self.cameraframe == nil then
+            start_capture(self)
+        else
+            stop_capture(self)
+        end
+    end
 end