if (!v210Converter::has_hardware_support()) {
fprintf(stderr, "ERROR: --ten-bit-output requires support for OpenGL compute shaders\n");
fprintf(stderr, " (OpenGL 4.3, or GL_ARB_compute_shader + GL_ARB_shader_image_load_store).\n");
if (!v210Converter::has_hardware_support()) {
fprintf(stderr, "ERROR: --ten-bit-output requires support for OpenGL compute shaders\n");
fprintf(stderr, " (OpenGL 4.3, or GL_ARB_compute_shader + GL_ARB_shader_image_load_store).\n");