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// Copyright (c) 2016 The Chromium 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 GPU_VULKAN_VULKAN_SWAP_CHAIN_H_
#define GPU_VULKAN_VULKAN_SWAP_CHAIN_H_
#include <memory>
#include <vector>
#include <vulkan/vulkan.h>
#include "base/logging.h"
#include "gpu/vulkan/vulkan_export.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/swap_result.h"
namespace gpu {
class VulkanCommandBuffer;
class VulkanCommandPool;
class VulkanDeviceQueue;
class VulkanImageView;
class VulkanSwapChain {
public:
VulkanSwapChain();
~VulkanSwapChain();
bool Initialize(VulkanDeviceQueue* device_queue,
VkSurfaceKHR surface,
const VkSurfaceCapabilitiesKHR& surface_caps,
const VkSurfaceFormatKHR& surface_format);
void Destroy();
gfx::SwapResult SwapBuffers();
uint32_t num_images() const { return static_cast<uint32_t>(images_.size()); }
uint32_t current_image() const { return current_image_; }
const gfx::Size& size() const { return size_; }
VulkanImageView* GetImageView(uint32_t index) const {
DCHECK_LT(index, images_.size());
return images_[index]->image_view.get();
}
VulkanImageView* GetCurrentImageView() const {
return GetImageView(current_image_);
}
VulkanCommandBuffer* GetCurrentCommandBuffer() const {
DCHECK_LT(current_image_, images_.size());
return images_[current_image_]->command_buffer.get();
}
VkImage GetCurrentImage(uint32_t index) const {
DCHECK_LT(index, images_.size());
return images_[index]->image;
}
private:
bool InitializeSwapChain(VkSurfaceKHR surface,
const VkSurfaceCapabilitiesKHR& surface_caps,
const VkSurfaceFormatKHR& surface_format);
void DestroySwapChain();
bool InitializeSwapImages(const VkSurfaceCapabilitiesKHR& surface_caps,
const VkSurfaceFormatKHR& surface_format);
void DestroySwapImages();
VulkanDeviceQueue* device_queue_;
VkSwapchainKHR swap_chain_ = VK_NULL_HANDLE;
std::unique_ptr<VulkanCommandPool> command_pool_;
gfx::Size size_;
struct ImageData {
ImageData();
~ImageData();
VkImage image = VK_NULL_HANDLE;
std::unique_ptr<VulkanImageView> image_view;
std::unique_ptr<VulkanCommandBuffer> command_buffer;
VkSemaphore render_semaphore = VK_NULL_HANDLE;
VkSemaphore present_semaphore = VK_NULL_HANDLE;
};
std::vector<std::unique_ptr<ImageData>> images_;
uint32_t current_image_ = 0;
VkSemaphore next_present_semaphore_ = VK_NULL_HANDLE;
};
} // namespace gpu
#endif // GPU_VULKAN_VULKAN_SWAP_CHAIN_H_
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