Add GPUVertexLayout to graphics backends

Source/Engine/Graphics/Shaders/GPUShaderProgram.h

@@ -7,6 +7,7 @@
 #include "Config.h"
 
 class GPUShader;
+class GPUVertexLayout;
 
 /// <summary>
 /// The shader program metadata container. Contains description about resources used by the shader.
@@ -18,17 +19,17 @@ struct FLAXENGINE_API ShaderBindings
     uint32 UsedSRsMask;
     uint32 UsedUAsMask;
 
-    bool IsUsingCB(uint32 slotIndex) const
+    FORCE_INLINE bool IsUsingCB(uint32 slotIndex) const
     {
         return (UsedCBsMask & (1u << slotIndex)) != 0u;
     }
 
-    bool IsUsingSR(uint32 slotIndex) const
+    FORCE_INLINE bool IsUsingSR(uint32 slotIndex) const
     {
         return (UsedSRsMask & (1u << slotIndex)) != 0u;
     }
 
-    bool IsUsingUA(uint32 slotIndex) const
+    FORCE_INLINE bool IsUsingUA(uint32 slotIndex) const
     {
         return (UsedUAsMask & (1u << slotIndex)) != 0u;
     }
@@ -57,15 +58,7 @@ protected:
     GPUShader* _owner;
 #endif
 
-    void Init(const GPUShaderProgramInitializer& initializer)
-    {
-        _name = initializer.Name;
-        _bindings = initializer.Bindings;
-        _flags = initializer.Flags;
-#if !BUILD_RELEASE
-        _owner = initializer.Owner;
-#endif
-    }
+    void Init(const GPUShaderProgramInitializer& initializer);
 
 public:
     /// <summary>
@@ -122,8 +115,18 @@ public:
 /// </summary>
 class GPUShaderProgramVS : public GPUShaderProgram
 {
+public:
+    ~GPUShaderProgramVS();
+
+    // Vertex elements input layout defined explicitly in the shader.
+    // It's optional as it's been deprecated in favor or layouts defined by vertex buffers to allow data customizations.
+    // Can be overriden by the vertex buffers provided upon draw call.
+    // [Deprecated in v1.10]
+    GPUVertexLayout* Layout = nullptr;
+
 public:
     // Input element run-time data (see VertexShaderMeta::InputElement for compile-time data)
+    // [Deprecated in v1.10]
     PACK_STRUCT(struct InputElement
     {
         byte Type; // VertexShaderMeta::InputType
@@ -135,14 +138,15 @@ public:
         uint32 InstanceDataStepRate; // 0 if per-vertex
     });
 
-public:
     /// <summary>
     /// Gets input layout description handle (platform dependent).
+    /// [Deprecated in v1.10]
     /// </summary>
     virtual void* GetInputLayout() const = 0;
 
     /// <summary>
     /// Gets input layout description size (in bytes).
+    /// [Deprecated in v1.10]
     /// </summary>
     virtual byte GetInputLayoutSize() const = 0;
 
@@ -173,7 +177,7 @@ public:
 class GPUShaderProgramHS : public GPUShaderProgram
 {
 protected:
-    int32 _controlPointsCount;
+    int32 _controlPointsCount = 0;
 
 public:
     /// <summary>