RE_Texture3DMap.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        Render Library (C++)
 *
 * COMMENTS:    3D Texture definitions  
 */

#ifndef __RE_Texture3DMap_h__
#define __RE_Texture3DMap_h__


#include "RE_API.h"
#include "RE_TextureTypes.h"
#include "RE_TextureMap.h"
#include <UT/UT_VectorTypes.h>

template <class T> class UT_VoxelArray;
class re_Tex3D;

class RE_API RE_Texture3DMap : public RE_TextureMap
{ 
public:

             RE_Texture3DMap();
            ~RE_Texture3DMap() override;

    /// Returns the amount of main memory (NOT graphics memory!)
    /// owned by this RE_Texture3DMap.
    int64               getMemoryUsage(bool inclusive) const override;

    RE_TextureDimension getMapType() override { return RE_TEXTURE_3D; }
    RE_TextureMap       *clone() const override;
    
    
    // Create the texture from a voxel array
    void         setVoxels(const char *name,
                           const UT_VoxelArray<UT_Vector4> *voxels);

protected:
    bool                buildTexture(RE_Render *r, RE_Texture *t,
                                     void *data) override;
    bool                getNodeSource(const char *map, const char *rel,
                                      void **mapptr,
                                      RE_TextureDimension &textype,
                                      RE_GPUType &datatype,
                                      int &vectorsize,
                                      int &w, int &h, int &d) override;
    bool                getFileSource(const char *map,
                                      void **mapptr,
                                      RE_TextureDimension &textype,
                                      RE_GPUType &datatype,
                                      int &vectorsize,
                                      int &w, int &h, int &d,
                                      bool preload) override;
private:
    bool                getSource(const char *map,
                                  void **mapptr,
                                  RE_TextureDimension &textype,
                                  RE_GPUType &datatype,
                                  int &vectorsize,
                                  int &w, int &h, int &d);
    
    const UT_VoxelArray<UT_Vector4> *myVoxelSource;
    int                              myVoxelW;
    int                              myVoxelH;
    int                              myVoxelD;
};

#endif