Function UpdateOCIOGLState

tests/gpu/GPUUnitTest.cpp:331–353

    }

    void UpdateOCIOGLState(OCIO::OglAppRcPtr & app, OCIOGPUTestRcPtr & test)
    {
        app->setPrintShader(test->isVerbose());

        OCIO::ConstProcessorRcPtr & processor = test->getProcessor();
        OCIO::GpuShaderDescRcPtr & shaderDesc = test->getShaderDesc();
        
        OCIO::ConstGPUProcessorRcPtr gpu;
        if (test->isLegacyShader())
        {
            gpu = processor->getOptimizedLegacyGPUProcessor(OCIO::OPTIMIZATION_DEFAULT, 
                                                            test->getLegacyShaderLutEdge());
        }
        else
        {
            gpu = processor->getDefaultGPUProcessor();
        }

        // Collect the shader program information for a specific processor.
        gpu->extractGpuShaderInfo(shaderDesc);

        app->setShader(shaderDesc);
    }

    void DiffComponent(const std::vector<float> & cpuImage,
                       const std::vector<float> & gpuImage,