From 9764c13d6d2977903f407761b27d847c0056e1c4 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 30 Dec 2020 02:25:23 -0300
Subject: video_core: Rewrite the texture cache

The current texture cache has several points that hurt maintainability
and performance. It's easy to break unrelated parts of the cache
when doing minor changes. The cache can easily forget valuable
information about the cached textures by CPU writes or simply by its
normal usage.The current texture cache has several points that hurt
maintainability and performance. It's easy to break unrelated parts
of the cache when doing minor changes. The cache can easily forget
valuable information about the cached textures by CPU writes or simply
by its normal usage.

This commit aims to address those issues.
---
 src/video_core/renderer_vulkan/blit_image.h | 97 +++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 src/video_core/renderer_vulkan/blit_image.h

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

diff --git a/src/video_core/renderer_vulkan/blit_image.h b/src/video_core/renderer_vulkan/blit_image.h
new file mode 100644
index 000000000..2c2790bf9
--- /dev/null
+++ b/src/video_core/renderer_vulkan/blit_image.h
@@ -0,0 +1,97 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <compare>
+
+#include "video_core/engines/fermi_2d.h"
+#include "video_core/renderer_vulkan/vk_descriptor_pool.h"
+#include "video_core/renderer_vulkan/wrapper.h"
+#include "video_core/texture_cache/types.h"
+
+namespace Vulkan {
+
+using VideoCommon::Offset2D;
+
+class VKDevice;
+class VKScheduler;
+class StateTracker;
+
+class Framebuffer;
+class ImageView;
+
+struct BlitImagePipelineKey {
+    constexpr auto operator<=>(const BlitImagePipelineKey&) const noexcept = default;
+
+    VkRenderPass renderpass;
+    Tegra::Engines::Fermi2D::Operation operation;
+};
+
+class BlitImageHelper {
+public:
+    explicit BlitImageHelper(const VKDevice& device, VKScheduler& scheduler,
+                             StateTracker& state_tracker, VKDescriptorPool& descriptor_pool);
+    ~BlitImageHelper();
+
+    void BlitColor(const Framebuffer* dst_framebuffer, const ImageView& src_image_view,
+                   const std::array<Offset2D, 2>& dst_region,
+                   const std::array<Offset2D, 2>& src_region,
+                   Tegra::Engines::Fermi2D::Filter filter,
+                   Tegra::Engines::Fermi2D::Operation operation);
+
+    void BlitDepthStencil(const Framebuffer* dst_framebuffer, VkImageView src_depth_view,
+                          VkImageView src_stencil_view, const std::array<Offset2D, 2>& dst_region,
+                          const std::array<Offset2D, 2>& src_region,
+                          Tegra::Engines::Fermi2D::Filter filter,
+                          Tegra::Engines::Fermi2D::Operation operation);
+
+    void ConvertD32ToR32(const Framebuffer* dst_framebuffer, const ImageView& src_image_view);
+
+    void ConvertR32ToD32(const Framebuffer* dst_framebuffer, const ImageView& src_image_view);
+
+    void ConvertD16ToR16(const Framebuffer* dst_framebuffer, const ImageView& src_image_view);
+
+    void ConvertR16ToD16(const Framebuffer* dst_framebuffer, const ImageView& src_image_view);
+
+private:
+    void Convert(VkPipeline pipeline, const Framebuffer* dst_framebuffer,
+                 const ImageView& src_image_view);
+
+    [[nodiscard]] VkPipeline FindOrEmplacePipeline(const BlitImagePipelineKey& key);
+
+    [[nodiscard]] VkPipeline BlitDepthStencilPipeline(VkRenderPass renderpass);
+
+    void ConvertDepthToColorPipeline(vk::Pipeline& pipeline, VkRenderPass renderpass);
+
+    void ConvertColorToDepthPipeline(vk::Pipeline& pipeline, VkRenderPass renderpass);
+
+    const VKDevice& device;
+    VKScheduler& scheduler;
+    StateTracker& state_tracker;
+
+    vk::DescriptorSetLayout one_texture_set_layout;
+    vk::DescriptorSetLayout two_textures_set_layout;
+    DescriptorAllocator one_texture_descriptor_allocator;
+    DescriptorAllocator two_textures_descriptor_allocator;
+    vk::PipelineLayout one_texture_pipeline_layout;
+    vk::PipelineLayout two_textures_pipeline_layout;
+    vk::ShaderModule full_screen_vert;
+    vk::ShaderModule blit_color_to_color_frag;
+    vk::ShaderModule blit_depth_stencil_frag;
+    vk::ShaderModule convert_depth_to_float_frag;
+    vk::ShaderModule convert_float_to_depth_frag;
+    vk::Sampler linear_sampler;
+    vk::Sampler nearest_sampler;
+
+    std::vector<BlitImagePipelineKey> blit_color_keys;
+    std::vector<vk::Pipeline> blit_color_pipelines;
+    vk::Pipeline blit_depth_stencil_pipeline;
+    vk::Pipeline convert_d32_to_r32_pipeline;
+    vk::Pipeline convert_r32_to_d32_pipeline;
+    vk::Pipeline convert_d16_to_r16_pipeline;
+    vk::Pipeline convert_r16_to_d16_pipeline;
+};
+
+} // namespace Vulkan
-- 
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