Add D3DCommon (shared code between D3D11 and D3D12)

Source/Core/VideoBackends/D3DCommon/Common.h

@@ -0,0 +1,46 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <d3dcompiler.h>
+#include <dxgiformat.h>
+#include <string>
+#include <vector>
+
+#include "Common/CommonTypes.h"
+#include "VideoCommon/VideoCommon.h"
+
+struct IDXGIFactory2;
+
+enum class AbstractTextureFormat : u32;
+
+namespace D3DCommon
+{
+// Loading dxgi.dll and d3dcompiler.dll
+bool LoadLibraries();
+void UnloadLibraries();
+
+// Returns a list of D3D device names.
+std::vector<std::string> GetAdapterNames();
+
+// Helper function which creates a DXGI factory.
+IDXGIFactory2* CreateDXGIFactory(bool debug_device);
+
+// Globally-accessible D3DCompiler function.
+extern pD3DCompile d3d_compile;
+
+// Helpers for texture format conversion.
+DXGI_FORMAT GetDXGIFormatForAbstractFormat(AbstractTextureFormat format, bool typeless);
+DXGI_FORMAT GetSRVFormatForAbstractFormat(AbstractTextureFormat format);
+DXGI_FORMAT GetRTVFormatForAbstractFormat(AbstractTextureFormat format, bool integer);
+DXGI_FORMAT GetDSVFormatForAbstractFormat(AbstractTextureFormat format);
+AbstractTextureFormat GetAbstractFormatForDXGIFormat(DXGI_FORMAT format);
+
+// This function will assign a name to the given resource.
+// The DirectX debug layer will make it easier to identify resources that way,
+// e.g. when listing up all resources who have unreleased references.
+void SetDebugObjectName(IUnknown* resource, const char* format, ...);
+std::string GetDebugObjectName(IUnknown* resource);
+}  // namespace D3DCommon