1GLX_AMD_gpu_association 2http://www.opengl.org/registry/specs/AMD/glx_gpu_association.txt 3GLX_AMD_gpu_association 4 GLX_GPU_VENDOR_AMD 0x1F00 5 GLX_GPU_RENDERER_STRING_AMD 0x1F01 6 GLX_GPU_OPENGL_VERSION_STRING_AMD 0x1F02 7 GLX_GPU_FASTEST_TARGET_GPUS_AMD 0x21A2 8 GLX_GPU_RAM_AMD 0x21A3 9 GLX_GPU_CLOCK_AMD 0x21A4 10 GLX_GPU_NUM_PIPES_AMD 0x21A5 11 GLX_GPU_NUM_SIMD_AMD 0x21A6 12 GLX_GPU_NUM_RB_AMD 0x21A7 13 GLX_GPU_NUM_SPI_AMD 0x21A8 14