protected void CleanupAfterLinking()
{
SDL_gpu.GPU_DetachShader(ProgramHandle, VertexShaderObjectHandle);
SDL_gpu.GPU_DetachShader(ProgramHandle, PixelShaderObjectHandle);
SDL_gpu.GPU_FreeShader(VertexShaderObjectHandle);
SDL_gpu.GPU_FreeShader(PixelShaderObjectHandle);
VertexShaderObjectHandle = 0;
PixelShaderObjectHandle = 0;
}