Implement experimental Vulkan backend

Source/Core/VideoBackends/Vulkan/TextureCache.h

@@ -0,0 +1,87 @@
+// Copyright 2016 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include "VideoBackends/Vulkan/StreamBuffer.h"
+
+#include "VideoCommon/TextureCacheBase.h"
+
+namespace Vulkan
+{
+class PaletteTextureConverter;
+class StateTracker;
+class Texture2D;
+class TextureEncoder;
+
+class TextureCache : public TextureCacheBase
+{
+public:
+  TextureCache();
+  ~TextureCache();
+
+  bool Initialize(StateTracker* state_tracker);
+
+  bool CompileShaders() override;
+  void DeleteShaders() override;
+  void ConvertTexture(TCacheEntryBase* base_entry, TCacheEntryBase* base_unconverted, void* palette,
+                      TlutFormat format) override;
+
+  void CopyEFB(u8* dst, u32 format, u32 native_width, u32 bytes_per_row, u32 num_blocks_y,
+               u32 memory_stride, PEControl::PixelFormat src_format, const EFBRectangle& src_rect,
+               bool is_intensity, bool scale_by_half) override;
+
+private:
+  struct TCacheEntry : TCacheEntryBase
+  {
+    TCacheEntry(const TCacheEntryConfig& config_, TextureCache* parent,
+                std::unique_ptr<Texture2D> texture, VkFramebuffer framebuffer);
+    ~TCacheEntry();
+
+    Texture2D* GetTexture() const { return m_texture.get(); }
+    VkFramebuffer GetFramebuffer() const { return m_framebuffer; }
+    void Load(unsigned int width, unsigned int height, unsigned int expanded_width,
+              unsigned int level) override;
+    void FromRenderTarget(u8* dst, PEControl::PixelFormat src_format, const EFBRectangle& src_rect,
+                          bool scale_by_half, unsigned int cbufid, const float* colmat) override;
+    void CopyRectangleFromTexture(const TCacheEntryBase* source,
+                                  const MathUtil::Rectangle<int>& src_rect,
+                                  const MathUtil::Rectangle<int>& dst_rect) override;
+
+    void Bind(unsigned int stage) override;
+    bool Save(const std::string& filename, unsigned int level) override;
+
+  private:
+    TextureCache* m_parent;
+    std::unique_ptr<Texture2D> m_texture;
+
+    // If we're an EFB copy, framebuffer for drawing into.
+    VkFramebuffer m_framebuffer;
+  };
+
+  TCacheEntryBase* CreateTexture(const TCacheEntryConfig& config) override;
+
+  bool CreateRenderPasses();
+
+  VkRenderPass GetRenderPassForTextureUpdate(const Texture2D* texture) const;
+
+  StateTracker* m_state_tracker = nullptr;
+
+  VkRenderPass m_initialize_render_pass = VK_NULL_HANDLE;
+  VkRenderPass m_update_render_pass = VK_NULL_HANDLE;
+
+  std::unique_ptr<StreamBuffer> m_texture_upload_buffer;
+
+  std::unique_ptr<TextureEncoder> m_texture_encoder;
+
+  std::unique_ptr<PaletteTextureConverter> m_palette_texture_converter;
+
+  VkShaderModule m_copy_shader = VK_NULL_HANDLE;
+  VkShaderModule m_efb_color_to_tex_shader = VK_NULL_HANDLE;
+  VkShaderModule m_efb_depth_to_tex_shader = VK_NULL_HANDLE;
+};
+
+}  // namespace Vulkan