コード例 #1
0
GLenum Framebuffer::getImplementationColorReadType()
{
	Renderbuffer *colorbuffer = mColorbufferPointer;

	if(colorbuffer)
	{
		switch(colorbuffer->getInternalFormat())
		{
		case sw::FORMAT_A8R8G8B8:      return GL_UNSIGNED_BYTE;
		case sw::FORMAT_A8B8G8R8:      return GL_UNSIGNED_BYTE;
		case sw::FORMAT_X8R8G8B8:      return GL_UNSIGNED_BYTE;
		case sw::FORMAT_X8B8G8R8:      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(colorbuffer->getInternalFormat());
		}
	}

	return GL_UNSIGNED_BYTE;
}
コード例 #2
0
GLenum Framebuffer::getImplementationColorReadFormat()
{
	Renderbuffer *colorbuffer = mColorbufferPointer;

	if(colorbuffer)
	{
		// Don't return GL_RGBA since that's always supported. Provide a second option here.
		switch(colorbuffer->getInternalFormat())
		{
		case sw::FORMAT_A8R8G8B8:      return GL_BGRA_EXT;
		case sw::FORMAT_A8B8G8R8:      return GL_BGRA_EXT;
		case sw::FORMAT_X8R8G8B8:      return 0x80E0;   // GL_BGR_EXT
		case sw::FORMAT_X8B8G8R8:      return 0x80E0;   // GL_BGR_EXT
		case sw::FORMAT_A1R5G5B5:      return GL_BGRA_EXT;
		case sw::FORMAT_R5G6B5:        return 0x80E0;   // GL_BGR_EXT
		default:
			UNREACHABLE(colorbuffer->getInternalFormat());
		}
	}

	return GL_RGBA;
}