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#include "Testing/UnitTest.h"

namespace Falcor
{
    GPU_TEST(InvalidPixelDetectionPass)
    {
        RenderPassLibrary::instance().loadLibrary("DebugPasses.dll");
        float pInitData[8] = {std::numeric_limits<float>::quiet_NaN(), std::numeric_limits<float>::signaling_NaN(), std::numeric_limits<float>::infinity(),
            -1 * std::numeric_limits<float>::infinity(), 0.0f, 255.0f, 125.8f, 1.0f};
        RenderContext* pRenderContext = ctx.getRenderContext();
        Texture::SharedPtr pInput = Texture::create2D(2, 4, ResourceFormat::R32Float, 1, Resource::kMaxPossible, pInitData);
        RenderGraph::SharedPtr pGraph = RenderGraph::create("Invalid Pixel Detection");
        RenderPass::SharedPtr pPass = RenderPassLibrary::instance().createPass(pRenderContext, "InvalidPixelDetectionPass");
        if (!pPass) throw std::exception("Could not create render pass 'InvalidPixelDetectionPass'");
        pGraph->addPass(pPass, "InvalidPixelDetectionPass");
        pGraph->setInput("InvalidPixelDetectionPass.src", pInput);
        pGraph->markOutput("InvalidPixelDetectionPass.dst");
        pGraph->execute(pRenderContext);
        Resource::SharedPtr pOutput = pGraph->getOutput("InvalidPixelDetectionPass.dst");
        std::vector<uint8_t> color = pRenderContext->readTextureSubresource(pOutput->asTexture().get(), 0);
        uint32_t* output = (uint32_t*)color.data();

        for (uint32_t i = 0; i < 8; ++i)
        {
            uint32_t expected;
            switch (i)
            {
            case 0:
            case 1:
                expected = 0xFFFF0000;
                break;
            case 2:
            case 3:
                expected = 0xFF00FF00;
                break;
            default:
                expected = 0xFF000000;
                break;
            }
            EXPECT_EQ(output[i], expected);
        }
    }
}
