From f5dfe68a942856d01e3c12209da2d8e77c32081d Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Sun, 19 Jan 2020 21:05:10 -0300
Subject: vk_blit_screen: Initial implementation

This abstraction takes care of presenting accelerated and
non-accelerated or "framebuffer" images to the Vulkan swapchain.
---
 src/video_core/renderer_vulkan/vk_blit_screen.h | 118 ++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 src/video_core/renderer_vulkan/vk_blit_screen.h

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

diff --git a/src/video_core/renderer_vulkan/vk_blit_screen.h b/src/video_core/renderer_vulkan/vk_blit_screen.h
new file mode 100644
index 000000000..743bb0317
--- /dev/null
+++ b/src/video_core/renderer_vulkan/vk_blit_screen.h
@@ -0,0 +1,118 @@
+// Copyright 2018 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <tuple>
+
+#include "video_core/renderer_vulkan/declarations.h"
+#include "video_core/renderer_vulkan/vk_memory_manager.h"
+#include "video_core/renderer_vulkan/vk_resource_manager.h"
+
+namespace Core {
+class System;
+}
+
+namespace Core::Frontend {
+class EmuWindow;
+}
+
+namespace Tegra {
+struct FramebufferConfig;
+}
+
+namespace VideoCore {
+class RasterizerInterface;
+}
+
+namespace Vulkan {
+
+struct ScreenInfo;
+class RasterizerVulkan;
+class VKDevice;
+class VKFence;
+class VKImage;
+class VKScheduler;
+class VKSwapchain;
+
+class VKBlitScreen final {
+public:
+    explicit VKBlitScreen(Core::System& system, Core::Frontend::EmuWindow& render_window,
+                          VideoCore::RasterizerInterface& rasterizer, const VKDevice& device,
+                          VKResourceManager& resource_manager, VKMemoryManager& memory_manager,
+                          VKSwapchain& swapchain, VKScheduler& scheduler,
+                          const VKScreenInfo& screen_info);
+    ~VKBlitScreen();
+
+    void Recreate();
+
+    std::tuple<VKFence&, vk::Semaphore> Draw(const Tegra::FramebufferConfig& framebuffer,
+                                             bool use_accelerated);
+
+private:
+    struct BufferData;
+
+    void CreateStaticResources();
+    void CreateShaders();
+    void CreateSemaphores();
+    void CreateDescriptorPool();
+    void CreateRenderPass();
+    void CreateDescriptorSetLayout();
+    void CreateDescriptorSets();
+    void CreatePipelineLayout();
+    void CreateGraphicsPipeline();
+    void CreateSampler();
+
+    void CreateDynamicResources();
+    void CreateFramebuffers();
+
+    void RefreshResources(const Tegra::FramebufferConfig& framebuffer);
+    void ReleaseRawImages();
+    void CreateStagingBuffer(const Tegra::FramebufferConfig& framebuffer);
+    void CreateRawImages(const Tegra::FramebufferConfig& framebuffer);
+
+    void UpdateDescriptorSet(u32 image_index, vk::ImageView image_view) const;
+    void SetUniformData(BufferData& data, const Tegra::FramebufferConfig& framebuffer) const;
+    void SetVertexData(BufferData& data, const Tegra::FramebufferConfig& framebuffer) const;
+
+    u64 CalculateBufferSize(const Tegra::FramebufferConfig& framebuffer) const;
+    u64 GetRawImageOffset(const Tegra::FramebufferConfig& framebuffer, u32 image_index) const;
+
+    Core::System& system;
+    Core::Frontend::EmuWindow& render_window;
+    VideoCore::RasterizerInterface& rasterizer;
+    const VKDevice& device;
+    VKResourceManager& resource_manager;
+    VKMemoryManager& memory_manager;
+    VKSwapchain& swapchain;
+    VKScheduler& scheduler;
+    const u32 image_count;
+    const VKScreenInfo& screen_info;
+
+    UniqueShaderModule vertex_shader;
+    UniqueShaderModule fragment_shader;
+    UniqueDescriptorPool descriptor_pool;
+    UniqueDescriptorSetLayout descriptor_set_layout;
+    UniquePipelineLayout pipeline_layout;
+    UniquePipeline pipeline;
+    UniqueRenderPass renderpass;
+    std::vector<UniqueFramebuffer> framebuffers;
+    std::vector<vk::DescriptorSet> descriptor_sets;
+    UniqueSampler sampler;
+
+    UniqueBuffer buffer;
+    VKMemoryCommit buffer_commit;
+
+    std::vector<std::unique_ptr<VKFenceWatch>> watches;
+
+    std::vector<UniqueSemaphore> semaphores;
+    std::vector<std::unique_ptr<VKImage>> raw_images;
+    std::vector<VKMemoryCommit> raw_buffer_commits;
+    u32 raw_width = 0;
+    u32 raw_height = 0;
+};
+
+} // namespace Vulkan
-- 
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