assimp/code/HMP/HMPLoader.h

/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2019, assimp team


All rights reserved.

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  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
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* Neither the name of the assimp team, nor the names of its
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  written permission of the assimp team.

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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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----------------------------------------------------------------------
*/
/** @file  HMPLoader.h
 *  @brief Declaration of the HMP importer class
 */

#ifndef AI_HMPLOADER_H_INCLUDED
#define AI_HMPLOADER_H_INCLUDED

// internal headers
#include <assimp/BaseImporter.h>

#include "MDL/MDLLoader.h"
#include "HMP/HMPFileData.h"

namespace Assimp {
using namespace HMP;

// ---------------------------------------------------------------------------
/** Used to load 3D GameStudio HMP files (terrains)
*/
class HMPImporter : public MDLImporter
{
public:
    HMPImporter();
    ~HMPImporter();


public:

    // -------------------------------------------------------------------
    /** Returns whether the class can handle the format of the given file.
     * See BaseImporter::CanRead() for details.
     */
    bool CanRead( const std::string& pFile, IOSystem* pIOHandler,
        bool checkSig) const;

protected:


    // -------------------------------------------------------------------
    /** Return importer meta information.
     * See #BaseImporter::GetInfo for the details
     */
    const aiImporterDesc* GetInfo () const;

    // -------------------------------------------------------------------
    /** Imports the given file into the given scene structure.
    * See BaseImporter::InternReadFile() for details
    */
    void InternReadFile( const std::string& pFile, aiScene* pScene,
        IOSystem* pIOHandler);

protected:

    // -------------------------------------------------------------------
    /** Import a HMP4 file
    */
    void InternReadFile_HMP4( );

    // -------------------------------------------------------------------
    /** Import a HMP5 file
    */
    void InternReadFile_HMP5( );

    // -------------------------------------------------------------------
    /** Import a HMP7 file
    */
    void InternReadFile_HMP7( );

    // -------------------------------------------------------------------
    /** Validate a HMP 5,4,7 file header
    */
    void ValidateHeader_HMP457( );

    // -------------------------------------------------------------------
    /** Try to load one material from the file, if this fails create
     * a default material
    */
    void CreateMaterial(const unsigned char* szCurrent,
        const unsigned char** szCurrentOut);

    // -------------------------------------------------------------------
    /** Build a list of output faces and vertices. The function
     *  triangulates the height map read from the file
     * \param width Width of the height field
     * \param width Height of the height field
    */
    void CreateOutputFaceList(unsigned int width,unsigned int height);

    // -------------------------------------------------------------------
    /** Generate planar texture coordinates for a terrain
     * \param width Width of the terrain, in vertices
     * \param height Height of the terrain, in vertices
    */
    void GenerateTextureCoords(const unsigned int width,
        const unsigned int height);

    // -------------------------------------------------------------------
    /** Read the first skin from the file and skip all others ...
     *  \param iNumSkins Number of skins in the file
     *  \param szCursor Position of the first skin (offset 84)
    */
    void ReadFirstSkin(unsigned int iNumSkins, const unsigned char* szCursor,
        const unsigned char** szCursorOut);

private:

};

} // end of namespace Assimp

#endif // AI_HMPIMPORTER_H_INC