// Copyright 2018 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SRC_DAWN_NATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_
#define SRC_DAWN_NATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_

#include <vector>

#include "dawn/dawn_wsi.h"
#include "dawn/native/dawn_platform.h"
#include "dawn/native/vulkan/VulkanInfo.h"

namespace dawn::native::vulkan {

class Device;

class NativeSwapChainImpl {
  public:
    using WSIContext = DawnWSIContextVulkan;

    NativeSwapChainImpl(Device* device, VkSurfaceKHR surface);
    ~NativeSwapChainImpl();

    void Init(DawnWSIContextVulkan* context);
    DawnSwapChainError Configure(WGPUTextureFormat format,
                                 WGPUTextureUsage,
                                 uint32_t width,
                                 uint32_t height);
    DawnSwapChainError GetNextTexture(DawnSwapChainNextTexture* nextTexture);
    DawnSwapChainError Present();

    wgpu::TextureFormat GetPreferredFormat() const;

    struct ChosenConfig {
        VkFormat nativeFormat;
        wgpu::TextureFormat format;
        VkColorSpaceKHR colorSpace;
        VkSurfaceTransformFlagBitsKHR preTransform;
        uint32_t minImageCount;
        VkPresentModeKHR presentMode;
        VkCompositeAlphaFlagBitsKHR compositeAlpha;
    };

  private:
    void UpdateSurfaceConfig();

    VkSurfaceKHR mSurface = VK_NULL_HANDLE;
    VkSwapchainKHR mSwapChain = VK_NULL_HANDLE;
    std::vector<VkImage> mSwapChainImages;
    uint32_t mLastImageIndex = 0;

    VulkanSurfaceInfo mInfo;

    ChosenConfig mConfig;

    Device* mDevice = nullptr;
};

}  // namespace dawn::native::vulkan

#endif  // SRC_DAWN_NATIVE_VULKAN_NATIVESWAPCHAINIMPLVK_H_