+ /* GL_ARB_fragment_shader */
+ case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB:
+ if (ctx->API == API_OPENGLES || !ctx->Extensions.ARB_fragment_shader)
+ goto invalid_target;
+ if (ctx->Hint.FragmentShaderDerivative == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_HINT);
+ ctx->Hint.FragmentShaderDerivative = mode;
+ break;
+