RenderCommands.h

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#pragma once

#include "swGraphicAPI/Resources/MeshResources.h"
#include "swGraphicAPI/Resources/BlendingState.h"
#include "swGraphicAPI/Resources/DepthStencilState.h"
#include "swGraphicAPI/Resources/RasterizerState.h"

#define MAX_BOUND_RENDER_TARGETS    8
#define ENGINE_MAX_TEXTURES         8


struct RendererCommand
{};


struct SetRenderTargetCommand : public RendererCommand
{
    RenderTargetObject*     RenderTargets[ MAX_BOUND_RENDER_TARGETS ];  
    RenderTargetObject*     DepthStencil;       
    RasterizerState*        RasterizerState;
    BlendingState*          BlendingState;
    DepthStencilState*      DepthStencilState;
    BufferObject*           CameraBuffer;       
    BufferObject*           LightBuffer;        
};


struct ViewportInfo
{
    uint16      TopLeftX;
    uint16      TopLeftY;
    uint16      Width;
    uint16      Height;
    float       MinDepth;
    float       MaxDepth;
};


struct ScissorRectInfo
{
    uint16      Left;
    uint16      Top;
    uint16      Right;
    uint16      Bottom;
};


struct SetRenderTargetExCommand : public SetRenderTargetCommand
{
    uint8                   NumViews;
    ViewportInfo*           Viewports;
    ScissorRectInfo*        Scissors;
    DirectX::XMFLOAT4       BlendFactor;
    uint32                  StencilMask;
};


struct ClearRenderTargetCommand : public RendererCommand
{
    RenderTargetObject*     RenderTarget;
    DirectX::XMFLOAT4       ClearColor;
    float                   DepthValue;
    uint8                   StencilValue;
    bool                    ClearDepth;
    bool                    ClearStencil;
    bool                    ClearRenderTarget;
};

struct DrawCommand : public RendererCommand
{
    BufferObject*           VertexBuffer;
    BufferObject*           IndexBufer;
    ShaderInputLayout*      Layout;
    uint32                  BufferOffset;
    uint32                  NumVertices;
    int32                   BaseVertex;
    PrimitiveTopology       Topology;
    bool                    ExtendedIndex;      
};

struct DrawInstancedCommand : public DrawCommand
{
    BufferObject*       PerInstanceBuffer;      
    uint16              NumInstances;
};


struct SetShaderStateCommand : public RendererCommand
{
    VertexShader*       VertexShader;
    PixelShader*        PixelShader;
    TextureObject*      Textures[ 8 ];
    uint8               BindToShader[ 8 ];      
};


struct SetShaderStateExCommand : public SetShaderStateCommand
{
    GeometryShader*     GeometryShader;
    EvaluationShader*   TessEvaluationShader;
    ControlShader*      TessControlShader;
};


struct SetDefaultBuffersCommand : public RendererCommand
{
    BufferObject*       TransformBuffer;
    BufferObject*       MaterialBuffer;
    BufferObject*       BonesTransforms;
};

struct SetRenderStateCommand : public SetShaderStateCommand, SetDefaultBuffersCommand
{};


struct SetRenderStateExCommand : public SetShaderStateExCommand, SetDefaultBuffersCommand
{};


struct CopyTextureCommand : public RendererCommand
{
    TextureObject*      SourceTexture;
    TextureObject*      DestinationTexture;
};

struct BindBufferCommand : public RendererCommand
{
    BufferObject*       Buffer;
    uint8               BufferSlot;
    uint8               BindToShader;       
};


struct UpdateBufferCommand : public RendererCommand
{
    BufferObject*       Buffer;
    uint8*              FillData;
    uint32              Size;       
};


struct UpdateBindBuffer : public BindBufferCommand
{
    uint8*              FillData;
    uint32              Size;       
};