// Copyright 2018 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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#ifndef SRC_DAWN_NATIVE_VULKAN_SHADERMODULEVK_H_
#define SRC_DAWN_NATIVE_VULKAN_SHADERMODULEVK_H_

#include <memory>
#include <mutex>
#include <optional>
#include <string>
#include <utility>
#include <vector>

#include "partition_alloc/pointers/raw_ptr.h"
#include "src/dawn/common/HashUtils.h"
#include "src/dawn/common/vulkan_platform.h"
#include "src/dawn/native/Error.h"
#include "src/dawn/native/ShaderModule.h"

namespace dawn::native {

struct ProgrammableStage;

namespace vulkan {

class Device;
class PipelineLayout;

class ShaderModule final : public ShaderModuleBase {
  public:
    static ResultOrError<Ref<ShaderModule>> Create(
        Device* device,
        const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
        const std::vector<tint::wgsl::Extension>& internalExtensions);

    // Caller is responsible for destroying the `VkShaderModule` returned.
    struct ModuleAndSpirv {
        VkShaderModule module;
        std::vector<uint32_t> spirv;
        bool hasInputAttachment;
        Extent3D workgroupSize;
        std::optional<uint32_t> explicitSubgroupSize;
    };
    struct CompileParameters {
        // Kept without defaults as they must be provided.
        raw_ptr<const ProgrammableStage> stage;
        raw_ptr<const PipelineLayout> layout;
        ImmediateMask immediateMask;
        raw_ptr<const absl::flat_hash_set<APIBindPoint>> ycbcrExternalTextures;

        std::optional<uint32_t> polyfillPixelCenter = std::nullopt;
        bool emitPointSize = false;
        bool pipelineUsesFramebufferFetch = false;
        bool needsMultisampledFramebufferFetch = false;
    };

    ResultOrError<ModuleAndSpirv> GetHandleAndSpirv(const CompileParameters& p);

  private:
    ShaderModule(Device* device,
                 const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
                 std::vector<tint::wgsl::Extension> internalExtensions);
    ~ShaderModule() override;
};

}  // namespace vulkan

}  // namespace dawn::native

#endif  // SRC_DAWN_NATIVE_VULKAN_SHADERMODULEVK_H_