From 2ad9acf795fcb9f0f01ed85e1b4f1accd9c3965d Mon Sep 17 00:00:00 2001
From: GPUCode <geoster3d@gmail.com>
Date: Sun, 19 Mar 2023 17:23:24 +0200
Subject: renderer_vulkan: Async presentation

---
 .../renderer_vulkan/vk_present_manager.h           | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 src/video_core/renderer_vulkan/vk_present_manager.h

(limited to 'src/video_core/renderer_vulkan/vk_present_manager.h')

diff --git a/src/video_core/renderer_vulkan/vk_present_manager.h b/src/video_core/renderer_vulkan/vk_present_manager.h
new file mode 100644
index 000000000..f5d9fc96d
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_present_manager.h
@@ -0,0 +1,82 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <condition_variable>
+#include <mutex>
+#include <queue>
+
+#include "common/common_types.h"
+#include "common/polyfill_thread.h"
+#include "video_core/vulkan_common/vulkan_memory_allocator.h"
+#include "video_core/vulkan_common/vulkan_wrapper.h"
+
+namespace Core::Frontend {
+class EmuWindow;
+} // namespace Core::Frontend
+
+namespace Vulkan {
+
+class Device;
+class Scheduler;
+class Swapchain;
+
+struct Frame {
+    u32 width;
+    u32 height;
+    bool is_srgb;
+    vk::Image image;
+    vk::ImageView image_view;
+    vk::Framebuffer framebuffer;
+    MemoryCommit image_commit;
+    vk::CommandBuffer cmdbuf;
+    vk::Semaphore render_ready;
+    vk::Fence present_done;
+};
+
+class PresentManager {
+public:
+    PresentManager(Core::Frontend::EmuWindow& render_window, const Device& device,
+                   MemoryAllocator& memory_allocator, Scheduler& scheduler, Swapchain& swapchain);
+    ~PresentManager();
+
+    /// Returns the last used presentation frame
+    Frame* GetRenderFrame();
+
+    /// Pushes a frame for presentation
+    void PushFrame(Frame* frame);
+
+    /// Recreates the present frame to match the provided parameters
+    void RecreateFrame(Frame* frame, u32 width, u32 height, bool is_srgb,
+                       VkFormat image_view_format, VkRenderPass rd);
+
+    /// Waits for the present thread to finish presenting all queued frames.
+    void WaitPresent();
+
+private:
+    void PresentThread(std::stop_token token);
+
+    void CopyToSwapchain(Frame* frame);
+
+private:
+    Core::Frontend::EmuWindow& render_window;
+    const Device& device;
+    MemoryAllocator& memory_allocator;
+    Scheduler& scheduler;
+    Swapchain& swapchain;
+    vk::CommandPool cmdpool;
+    std::vector<Frame> frames;
+    std::queue<Frame*> present_queue;
+    std::queue<Frame*> free_queue;
+    std::condition_variable_any frame_cv;
+    std::condition_variable free_cv;
+    std::mutex swapchain_mutex;
+    std::mutex queue_mutex;
+    std::mutex free_mutex;
+    std::jthread present_thread;
+    bool blit_supported{};
+    std::size_t image_count;
+};
+
+} // namespace Vulkan
-- 
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