Implement AbstractGfx for Vulkan

Source/Core/VideoBackends/Vulkan/VKGfx.h

@@ -0,0 +1,102 @@
+// Copyright 2016 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <string_view>
+
+#include "Common/CommonTypes.h"
+#include "VideoBackends/Vulkan/Constants.h"
+#include "VideoCommon/AbstractGfx.h"
+
+namespace Vulkan
+{
+class SwapChain;
+class StagingTexture2D;
+class VKFramebuffer;
+class VKPipeline;
+class VKTexture;
+
+class VKGfx : public ::AbstractGfx
+{
+public:
+  VKGfx(std::unique_ptr<SwapChain> swap_chain, float backbuffer_scale);
+  ~VKGfx() override;
+
+  static VKGfx* GetInstance() { return static_cast<VKGfx*>(g_gfx.get()); }
+
+  bool IsHeadless() const override;
+
+  std::unique_ptr<AbstractTexture> CreateTexture(const TextureConfig& config,
+                                                 std::string_view name) override;
+  std::unique_ptr<AbstractStagingTexture>
+  CreateStagingTexture(StagingTextureType type, const TextureConfig& config) override;
+  std::unique_ptr<AbstractFramebuffer>
+  CreateFramebuffer(AbstractTexture* color_attachment, AbstractTexture* depth_attachment) override;
+
+  std::unique_ptr<AbstractShader> CreateShaderFromSource(ShaderStage stage, std::string_view source,
+                                                         std::string_view name) override;
+  std::unique_ptr<AbstractShader> CreateShaderFromBinary(ShaderStage stage, const void* data,
+                                                         size_t length,
+                                                         std::string_view name) override;
+  std::unique_ptr<NativeVertexFormat>
+  CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl) override;
+  std::unique_ptr<AbstractPipeline> CreatePipeline(const AbstractPipelineConfig& config,
+                                                   const void* cache_data = nullptr,
+                                                   size_t cache_data_length = 0) override;
+
+  SwapChain* GetSwapChain() const { return m_swap_chain.get(); }
+
+  void Flush() override;
+  void WaitForGPUIdle() override;
+  void OnConfigChanged(u32 bits) override;
+
+  void ClearRegion(const MathUtil::Rectangle<int>& rc, const MathUtil::Rectangle<int>& target_rc,
+                   bool color_enable, bool alpha_enable, bool z_enable, u32 color, u32 z) override;
+
+  void SetPipeline(const AbstractPipeline* pipeline) override;
+  void SetFramebuffer(AbstractFramebuffer* framebuffer) override;
+  void SetAndDiscardFramebuffer(AbstractFramebuffer* framebuffer) override;
+  void SetAndClearFramebuffer(AbstractFramebuffer* framebuffer, const ClearColor& color_value = {},
+                              float depth_value = 0.0f) override;
+  void SetScissorRect(const MathUtil::Rectangle<int>& rc) override;
+  void SetTexture(u32 index, const AbstractTexture* texture) override;
+  void SetSamplerState(u32 index, const SamplerState& state) override;
+  void SetComputeImageTexture(AbstractTexture* texture, bool read, bool write) override;
+  void UnbindTexture(const AbstractTexture* texture) override;
+  void SetViewport(float x, float y, float width, float height, float near_depth,
+                   float far_depth) override;
+  void Draw(u32 base_vertex, u32 num_vertices) override;
+  void DrawIndexed(u32 base_index, u32 num_indices, u32 base_vertex) override;
+  void DispatchComputeShader(const AbstractShader* shader, u32 groupsize_x, u32 groupsize_y,
+                             u32 groupsize_z, u32 groups_x, u32 groups_y, u32 groups_z) override;
+  void BindBackbuffer(const ClearColor& clear_color = {}) override;
+  void PresentBackbuffer() override;
+  void SetFullscreen(bool enable_fullscreen) override;
+  bool IsFullscreen() const override;
+
+  // Returns info about the main surface (aka backbuffer)
+  virtual SurfaceInfo GetSurfaceInfo() const override;
+
+  // Completes the current render pass, executes the command buffer, and restores state ready for
+  // next render. Use when you want to kick the current buffer to make room for new data.
+  void ExecuteCommandBuffer(bool execute_off_thread, bool wait_for_completion = false);
+
+private:
+  void CheckForSurfaceChange();
+  void CheckForSurfaceResize();
+
+  void ResetSamplerStates();
+
+  void OnSwapChainResized();
+  void BindFramebuffer(VKFramebuffer* fb);
+
+  std::unique_ptr<SwapChain> m_swap_chain;
+  float m_backbuffer_scale;
+
+  // Keep a copy of sampler states to avoid cache lookups every draw
+  std::array<SamplerState, NUM_PIXEL_SHADER_SAMPLERS> m_sampler_states = {};
+};
+}  // namespace Vulkan