qt-everywhere-src-5.15.1/qt3d/src/3rdparty/assimp/code/BlenderBMesh.h

/*
Open Asset Import Library (assimp)
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  following disclaimer.

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*/

/** @file  BlenderBMesh.h
 *  @brief Conversion of Blender's new BMesh stuff
 */
#ifndef INCLUDED_AI_BLEND_BMESH_H
#define INCLUDED_AI_BLEND_BMESH_H

#include "LogAux.h"

namespace Assimp
{
    // TinyFormatter.h
    namespace Formatter
    {
        template < typename T,typename TR, typename A > class basic_formatter;
        typedef class basic_formatter< char, std::char_traits< char >, std::allocator< char > > format;
    }

    // BlenderScene.h
    namespace Blender
    {
        struct Mesh;
        struct MPoly;
        struct MLoop;
    }

    class BlenderBMeshConverter: public LogFunctions< BlenderBMeshConverter >
    {
    public:
        BlenderBMeshConverter( const Blender::Mesh* mesh );
        ~BlenderBMeshConverter( );

        bool ContainsBMesh( ) const;

        const Blender::Mesh* TriangulateBMesh( );

    private:
        void AssertValidMesh( );
        void AssertValidSizes( );
        void PrepareTriMesh( );
        void DestroyTriMesh( );
        void ConvertPolyToFaces( const Blender::MPoly& poly );
        void AddFace( int v1, int v2, int v3, int v4 = 0 );
        void AddTFace( const float* uv1, const float* uv2, const float *uv3, const float* uv4 = 0 );

        const Blender::Mesh* BMesh;
        Blender::Mesh* triMesh;

        friend class BlenderTessellatorGL;
        friend class BlenderTessellatorP2T;
    };

} // end of namespace Assimp

#endif // INCLUDED_AI_BLEND_BMESH_H