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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_VULKAN_VULKAN_SWAPCHAIN_H_
#define FLUTTER_VULKAN_VULKAN_SWAPCHAIN_H_
#include <memory>
#include <utility>
#include <vector>
#include "flutter/fml/compiler_specific.h"
#include "flutter/fml/macros.h"
#include "flutter/vulkan/procs/vulkan_handle.h"
#include "third_party/skia/include/core/SkSize.h"
#include "third_party/skia/include/core/SkSurface.h"
namespace vulkan {
class VulkanProcTable;
class VulkanDevice;
class VulkanSurface;
class VulkanBackbuffer;
class VulkanImage;
class VulkanSwapchain {
public:
VulkanSwapchain(const VulkanProcTable& vk,
const VulkanDevice& device,
const VulkanSurface& surface,
GrDirectContext* skia_context,
std::unique_ptr<VulkanSwapchain> old_swapchain,
uint32_t queue_family_index);
~VulkanSwapchain();
bool IsValid() const;
enum class AcquireStatus {
/// A valid SkSurface was acquired successfully from the swapchain.
Success,
/// The underlying surface of the swapchain was permanently lost. This is an
/// unrecoverable error. The entire surface must be recreated along with the
/// swapchain.
ErrorSurfaceLost,
/// The swapchain surface is out-of-date with the underlying surface. The
/// swapchain must be recreated.
ErrorSurfaceOutOfDate,
};
using AcquireResult = std::pair<AcquireStatus, sk_sp<SkSurface>>;
/// Acquire an SkSurface from the swapchain for the caller to render into for
/// later submission via |Submit|. There must not be consecutive calls to
/// |AcquireFrame| without and interleaving |Submit|.
AcquireResult AcquireSurface();
/// Submit a previously acquired. There must not be consecutive calls to
/// |Submit| without and interleaving |AcquireFrame|.
[[nodiscard]] bool Submit();
SkISize GetSize() const;
#if FML_OS_ANDROID
private:
const VulkanProcTable& vk;
const VulkanDevice& device_;
VkSurfaceCapabilitiesKHR capabilities_;
VkSurfaceFormatKHR surface_format_;
VulkanHandle<VkSwapchainKHR> swapchain_;
std::vector<std::unique_ptr<VulkanBackbuffer>> backbuffers_;
std::vector<std::unique_ptr<VulkanImage>> images_;
std::vector<sk_sp<SkSurface>> surfaces_;
VkPipelineStageFlagBits current_pipeline_stage_;
size_t current_backbuffer_index_;
size_t current_image_index_;
bool valid_;
std::vector<VkImage> GetImages() const;
bool CreateSwapchainImages(GrDirectContext* skia_context,
SkColorType color_type,
const sk_sp<SkColorSpace>& color_space,
VkImageUsageFlags usage_flags);
sk_sp<SkSurface> CreateSkiaSurface(GrDirectContext* skia_context,
VkImage image,
VkImageUsageFlags usage_flags,
const SkISize& size,
SkColorType color_type,
sk_sp<SkColorSpace> color_space) const;
VulkanBackbuffer* GetNextBackbuffer();
#endif // FML_OS_ANDROID
FML_DISALLOW_COPY_AND_ASSIGN(VulkanSwapchain);
};
} // namespace vulkan
#endif // FLUTTER_VULKAN_VULKAN_SWAPCHAIN_H_