src/dawn/tests/unittests/validation/YCbCrSamplerValidationTests.cpp

// Copyright 2024 The Dawn & Tint Authors
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#include <vulkan/vulkan.h>

#include "dawn/native/VulkanBackend.h"
#include "dawn/tests/unittests/validation/ValidationTest.h"

namespace dawn {
namespace {

class YCbCrSamplerValidationTest : public ValidationTest {
    void SetUp() override {
        ValidationTest::SetUp();
        DAWN_SKIP_TEST_IF(UsesWire());
    }
};

// Tests that creating a sampler with a valid ycbcr sampler descriptor raises an error
// if the required feature is not enabled.
TEST_F(YCbCrSamplerValidationTest, YCbCrSamplerNotSupportedWithoutFeatureEnabled) {
    wgpu::SamplerDescriptor samplerDesc = {};
    native::vulkan::SamplerYCbCrVulkanDescriptor samplerYCbCrDesc = {};
    samplerDesc.nextInChain = &samplerYCbCrDesc;

    ASSERT_DEVICE_ERROR(device.CreateSampler(&samplerDesc));
}

class YCbCrSamplerWithFeatureValidationTest : public YCbCrSamplerValidationTest {
    WGPUDevice CreateTestDevice(native::Adapter dawnAdapter,
                                wgpu::DeviceDescriptor descriptor) override {
        wgpu::FeatureName requiredFeatures[1] = {wgpu::FeatureName::YCbCrVulkanSamplers};
        descriptor.requiredFeatures = requiredFeatures;
        descriptor.requiredFeatureCount = 1;
        return dawnAdapter.CreateDevice(&descriptor);
    }
};

// Tests that creating a sampler with a valid ycbcr sampler descriptor succeeds if the
// required feature is enabled.
TEST_F(YCbCrSamplerWithFeatureValidationTest, YCbCrSamplerSupportedWhenFeatureEnabled) {
    wgpu::SamplerDescriptor samplerDesc = {};
    native::vulkan::SamplerYCbCrVulkanDescriptor samplerYCbCrDesc = {};
    samplerYCbCrDesc.vulkanYCbCrInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO;
    samplerDesc.nextInChain = &samplerYCbCrDesc;

    device.CreateSampler(&samplerDesc);
}

}  // anonymous namespace
}  // namespace dawn