Implement AbstractGfx for Software & Null

Source/Core/VideoBackends/Null/NullGfx.h

@@ -0,0 +1,50 @@
+// Copyright 2015 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "VideoCommon/AbstractGfx.h"
+#include "VideoCommon/RenderBase.h"
+
+namespace Null
+{
+class NullGfx final : public AbstractGfx
+{
+public:
+  NullGfx();
+  ~NullGfx() override;
+
+  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;
+};
+
+class NullRenderer final : public Renderer
+{
+public:
+  NullRenderer() {}
+  ~NullRenderer() override;
+
+  u32 AccessEFB(EFBAccessType type, u32 x, u32 y, u32 poke_data) override { return 0; }
+  void PokeEFB(EFBAccessType type, const EfbPokeData* points, size_t num_points) override {}
+
+  void ReinterpretPixelData(EFBReinterpretType convtype) override {}
+};
+
+}  // namespace Null