Add initial base implementation for WebGPU rendering backend

Source/Engine/GraphicsDevice/WebGPU/GPUShaderProgramWebGPU.h

@@ -0,0 +1,65 @@
+// Copyright (c) Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "Engine/Graphics/Shaders/GPUShaderProgram.h"
+#include "Engine/Core/Types/DataContainer.h"
+#include "Engine/Core/Collections/Dictionary.h"
+
+#if GRAPHICS_API_WEBGPU
+
+/// <summary>
+/// Shaders base class for Web GPU backend.
+/// </summary>
+template<typename BaseType>
+class GPUShaderProgramWebGPU : public BaseType
+{
+public:
+    GPUShaderProgramWebGPU(const GPUShaderProgramInitializer& initializer)
+    {
+        BaseType::Init(initializer);
+    }
+
+    ~GPUShaderProgramWebGPU()
+    {
+    }
+
+public:
+    // [BaseType]
+    uint32 GetBufferSize() const override
+    {
+        return 0;
+    }
+    void* GetBufferHandle() const override
+    {
+        return nullptr;
+    }
+};
+
+/// <summary>
+/// Vertex Shader for Web GPU backend.
+/// </summary>
+class GPUShaderProgramVSWebGPU : public GPUShaderProgramWebGPU<GPUShaderProgramVS>
+{
+public:
+    GPUShaderProgramVSWebGPU(const GPUShaderProgramInitializer& initializer, GPUVertexLayout* inputLayout, GPUVertexLayout* vertexLayout, Span<byte> bytecode)
+        : GPUShaderProgramWebGPU(initializer)
+    {
+        InputLayout = inputLayout;
+        Layout = vertexLayout;
+    }
+};
+
+/// <summary>
+/// Pixel Shader for Web GPU backend.
+/// </summary>
+class GPUShaderProgramPSWebGPU : public GPUShaderProgramWebGPU<GPUShaderProgramPS>
+{
+public:
+    GPUShaderProgramPSWebGPU(const GPUShaderProgramInitializer& initializer)
+        : GPUShaderProgramWebGPU(initializer)
+    {
+    }
+};
+
+#endif