DX11ViewportRenderer/DX11ResourceManager.h

#ifndef DX11ResourceManager_h_
#define DX11ResourceManager_h_

#include <maya/MViewportRenderer.h>
#include <maya/MDagPath.h>
#include <maya/MObjectHandle.h>
#include <maya/MMessage.h> // For monitoring geometry list nodes
#include <maya/MStringArray.h>
#include <string>
#include <map>

// Resources
#include "DX11GeometryItem.h"
#include "DX11TextureItem.h"

//#define DX11_SUPPORTED
#if defined(DX11_SUPPORTED)
#define WIN32_LEAN_AND_MEAN
#include <d3d11.h>
    // for VS 2012, Win8 SDK includes DX sdk with some headers removed
    #if _MSC_VER >= 1700
        #include <dxgi.h>
    #else
        #include <d3dx11.h>
    #endif

#include <d3dcompiler.h>
#include <xnamath.h>

struct CameraItem {
    // View matrix parameters
    XMFLOAT3                m_vEyePt;       // Eye position
    XMFLOAT3                m_vLookatPt;    // Look at position
    XMFLOAT3                m_vUpVec;       // Up vector

    // Projection matrix parameters
    float                   m_FieldOfView;  // Field of view (in degrees)
    float                   m_nearClip;     // Near clip plane
    float                   m_farClip;      // Far clip plane
    bool                    m_isOrtho;      // Is orthographic
};

// Surface effect item
struct SurfaceEffectItem
{
    ID3D11VertexShader* fVertexShader;
    ID3D11PixelShader*  fPixelShader;
    ID3D11InputLayout*  fInputLayout;
};
typedef std::map<std::string, SurfaceEffectItem*> SurfaceEffectItemList;

class MDagPath;
class MObject;
class MRenderingInfo;

//
// Manager for D3D resources
//
class DX11ResourceManager 
{
public:
    DX11ResourceManager();
    virtual ~DX11ResourceManager();

    D3DGeometry*            getGeometry( const MDagPath& dagPath, ID3D11Device* D3D);
    D3DTexture*             getTexture( MObject& mayaTexture);

    void                    clearResources(bool onlyInvalidItems, bool clearShaders);

    bool                    translateCamera( const MDagPath &cameraPath);
    CameraItem*             getCamera() { return &m_camera; }

    bool                    initializeDefaultSurfaceEffect( const MString &effectsLocation, ID3D11Device* D3D,
                                                            const MString &effectName,
                                                            const MString& vsName, const MString& psName,
                                                            const D3D11_INPUT_ELEMENT_DESC* layout, int numLayoutElements );
    const SurfaceEffectItemList & getSurfaceEffectItemList() const
    {
        return m_SurfaceEffectItemList;
    }

protected:
    void                    initializeDefaultCamera();

    // List of D3D geometry corresponding to Maya dag paths
    //
    GeometryItemList        m_geometryItemList;

    // List of D3D textures corresponding to Maya texture nodes
    //
    TextureItemList         m_textureItemList;

    CameraItem              m_camera;

    // List of surface effect items (by name)
    SurfaceEffectItemList   m_SurfaceEffectItemList;
};

#endif

#endif /* DX11ResourceManager_h_ */

//-
// ==========================================================================
// Copyright 2015 Autodesk, Inc.  All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+