D3D12: Initial commit for D3D12 backend implementation.

Source/Core/VideoBackends/D3D12/D3DShader.h

@@ -0,0 +1,26 @@
+// Copyright 2010 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+
+#include "VideoBackends/D3D12/D3DBase.h"
+
+class D3DBlob;
+
+namespace DX12
+{
+
+namespace D3D
+{
+
+// The returned bytecode buffers should be Release()d.
+bool CompileVertexShader(const std::string& code, ID3DBlob** blob);
+bool CompileGeometryShader(const std::string& code, ID3DBlob** blob, const D3D_SHADER_MACRO* defines = nullptr);
+bool CompilePixelShader(const std::string& code, ID3DBlob** blob, const D3D_SHADER_MACRO* defines = nullptr);
+
+}
+
+}  // namespace DX12