Provide missing OpenGL ES 1.x extension for implementation read format/type.

src/OpenGL/libGLES_CM/Context.cpp

@@ -1082,13 +1082,13 @@ bool Context::getIntegerv(GLenum pname, GLint *params)
             }
         }
         break;
-    case GL_IMPLEMENTATION_COLOR_READ_TYPE:
+    case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
 		{
 			Framebuffer *framebuffer = getFramebuffer();
 			*params = framebuffer->getImplementationColorReadType();
 		}
 		break;
-    case GL_IMPLEMENTATION_COLOR_READ_FORMAT:
+    case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
 		{
 			Framebuffer *framebuffer = getFramebuffer();
 			*params = framebuffer->getImplementationColorReadFormat();

src/OpenGL/libGLES_CM/libGLES_CM.cpp

@@ -2409,6 +2409,7 @@ const GLubyte* GL_APIENTRY glGetString(GLenum name)
 			"GL_OES_element_index_uint "
 			"GL_OES_framebuffer_object "
 			"GL_OES_packed_depth_stencil "
+			"GL_OES_read_format "
 			"GL_OES_rgb8_rgba8 "
 			"GL_OES_stencil8 "
 			"GL_OES_stencil_wrap "

src/OpenGL/libGLESv2/Framebuffer.cpp

@@ -399,45 +399,45 @@ GLenum Framebuffer::completeness(int &width, int &height, int &samples)
 	return GL_FRAMEBUFFER_COMPLETE;
 }
 
-GLenum Framebuffer::getImplementationColorReadFormat()
-{
-	Renderbuffer *colorbuffer = mColorbufferPointer.get();
-	
-	if(colorbuffer)
-	{
-		switch(colorbuffer->getInternalFormat())
-		{
-		case sw::FORMAT_A16B16G16R16F: return GL_RGBA;
-		case sw::FORMAT_A32B32G32R32F: return GL_RGBA;
-		case sw::FORMAT_A8R8G8B8:      return GL_BGRA_EXT;
-		case sw::FORMAT_X8R8G8B8:      return GL_BGRA_EXT;
-		case sw::FORMAT_A1R5G5B5:      return GL_BGRA_EXT;
-		case sw::FORMAT_R5G6B5:        return 0x80E0;   // GL_BGR_EXT
-		default:
-			UNREACHABLE();
-		}
-	}
-
-	return GL_RGBA;
-}
-
+GLenum Framebuffer::getImplementationColorReadFormat()
+{
+	Renderbuffer *colorbuffer = mColorbufferPointer.get();
+	
+	if(colorbuffer)
+	{
+		switch(colorbuffer->getInternalFormat())
+		{
+		case sw::FORMAT_A16B16G16R16F: return GL_RGBA;
+		case sw::FORMAT_A32B32G32R32F: return GL_RGBA;
+		case sw::FORMAT_A8R8G8B8:      return GL_BGRA_EXT;
+		case sw::FORMAT_X8R8G8B8:      return GL_BGRA_EXT;
+		case sw::FORMAT_A1R5G5B5:      return GL_BGRA_EXT;
+		case sw::FORMAT_R5G6B5:        return 0x80E0;   // GL_BGR_EXT
+		default:
+			UNREACHABLE();
+		}
+	}
+
+	return GL_RGBA;
+}
+
 GLenum Framebuffer::getImplementationColorReadType()
 {
-	Renderbuffer *colorbuffer = mColorbufferPointer.get();
-	
-	if(colorbuffer)
-	{
-		switch(colorbuffer->getInternalFormat())
-		{
-		case sw::FORMAT_A16B16G16R16F: return GL_HALF_FLOAT_OES;
-		case sw::FORMAT_A32B32G32R32F: return GL_FLOAT;
-		case sw::FORMAT_A8R8G8B8:      return GL_UNSIGNED_BYTE;
-		case sw::FORMAT_X8R8G8B8:      return GL_UNSIGNED_BYTE;
-		case sw::FORMAT_A1R5G5B5:      return GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT;
-		case sw::FORMAT_R5G6B5:        return GL_UNSIGNED_SHORT_5_6_5;
-		default:
-			UNREACHABLE();
-		}
+	Renderbuffer *colorbuffer = mColorbufferPointer.get();
+	
+	if(colorbuffer)
+	{
+		switch(colorbuffer->getInternalFormat())
+		{
+		case sw::FORMAT_A16B16G16R16F: return GL_HALF_FLOAT_OES;
+		case sw::FORMAT_A32B32G32R32F: return GL_FLOAT;
+		case sw::FORMAT_A8R8G8B8:      return GL_UNSIGNED_BYTE;
+		case sw::FORMAT_X8R8G8B8:      return GL_UNSIGNED_BYTE;
+		case sw::FORMAT_A1R5G5B5:      return GL_UNSIGNED_SHORT_1_5_5_5_REV_EXT;
+		case sw::FORMAT_R5G6B5:        return GL_UNSIGNED_SHORT_5_6_5;
+		default:
+			UNREACHABLE();
+		}
 	}
 
 	return GL_UNSIGNED_BYTE;