src/gpu/graphite/vk/VulkanYcbcrConversion.h

/*
 * Copyright 2023 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef skgpu_graphite_VulkanYcbcrConversion_DEFINED
#define skgpu_graphite_VulkanYcbcrConversion_DEFINED

#include "src/gpu/graphite/Resource.h"

#include "include/private/gpu/vk/SkiaVulkan.h"
#include "src/core/SkChecksum.h"

#include <cinttypes>
#include <optional>
#include <string>

namespace skgpu {
struct VulkanYcbcrConversionInfo;
}

namespace skgpu::graphite {

class VulkanSharedContext;

class VulkanYcbcrConversion : public Resource {
public:
    static sk_sp<VulkanYcbcrConversion> Make(const VulkanSharedContext*,
                                             const VulkanYcbcrConversionInfo&);

    const VkSamplerYcbcrConversion& ycbcrConversion() const { return fYcbcrConversion; }

    // If the format does not support
    // VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_SEPARATE_RECONSTRUCTION_FILTER_BIT,
    // sampler's minFilter and magFilter must match the conversion's chromaFilter, which can be
    // found in fRequiredFilter. If not set, minFilter and magFilter can be independently set.
    std::optional<VkFilter> requiredFilter() const { return fRequiredFilter; }

    const char* getResourceType() const override { return "Vulkan YCbCr Conversion"; }

    // Static utilities for working with VulkanYcbcrConversionInfo and ImmutableSamplerInfo, both of
    // which pack the necessary information to create a VulkanYcbcrConversion resource. These are
    // not on VulkanYcbcrConversionInfo because that is a public type for use with
    // VulkanTextureInfo.
    static ImmutableSamplerInfo ToImmutableSamplerInfo(const VulkanYcbcrConversionInfo&);
    static VulkanYcbcrConversionInfo FromImmutableSamplerInfo(ImmutableSamplerInfo);
    static std::string InfoToString(const VulkanYcbcrConversionInfo&);

private:
    VulkanYcbcrConversion(const VulkanSharedContext*,
                          VkSamplerYcbcrConversion,
                          std::optional<VkFilter>);

    void freeGpuData() override;

    VkSamplerYcbcrConversion fYcbcrConversion;
    std::optional<VkFilter> fRequiredFilter;
};
} // namespace skgpu::graphite

#endif // skgpu_graphite_VulkanYcbcrConversion_DEFINED