case GL_OUT_OF_MEMORY: return "out of memory";
case GL_TABLE_TOO_LARGE: return "table too large";
case GL_INVALID_FRAMEBUFFER_OPERATION: return "invalid framebuffer operation";
case GL_OUT_OF_MEMORY: return "out of memory";
case GL_TABLE_TOO_LARGE: return "table too large";
case GL_INVALID_FRAMEBUFFER_OPERATION: return "invalid framebuffer operation";