assimp/code/MD5Loader.h

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

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  following disclaimer.

* Redistributions in binary form must reproduce the above
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*/


/** @file   MD5Loader.h
 *  @brief Definition of the .MD5 importer class.
 *  http://www.modwiki.net/wiki/MD5_(file_format)
*/
#ifndef AI_MD5LOADER_H_INCLUDED
#define AI_MD5LOADER_H_INCLUDED

#include "BaseImporter.h"
#include "MD5Parser.h"

#include <assimp/types.h>

struct aiNode;
struct aiNodeAnim;

namespace Assimp    {

class IOStream;
using namespace Assimp::MD5;

// ---------------------------------------------------------------------------
/** Importer class for the MD5 file format
*/
class MD5Importer : public BaseImporter
{
public:
    MD5Importer();
    ~MD5Importer();


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;

    // -------------------------------------------------------------------
    /** Called prior to ReadFile().
     * The function is a request to the importer to update its configuration
     * basing on the Importer's configuration property list.
     */
    void SetupProperties(const Importer* pImp);

    // -------------------------------------------------------------------
    /** 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:


    // -------------------------------------------------------------------
    /** Load a *.MD5MESH file.
     */
    void LoadMD5MeshFile ();

    // -------------------------------------------------------------------
    /** Load a *.MD5ANIM file.
     */
    void LoadMD5AnimFile ();

    // -------------------------------------------------------------------
    /** Load a *.MD5CAMERA file.
     */
    void LoadMD5CameraFile ();

    // -------------------------------------------------------------------
    /** Construct node hierarchy from a given MD5ANIM
     *  @param iParentID Current parent ID
     *  @param piParent Parent node to attach to
     *  @param bones Input bones
     *  @param node_anims Generated node animations
    */
    void AttachChilds_Anim(int iParentID,aiNode* piParent,
        AnimBoneList& bones,const aiNodeAnim** node_anims);

    // -------------------------------------------------------------------
    /** Construct node hierarchy from a given MD5MESH
     *  @param iParentID Current parent ID
     *  @param piParent Parent node to attach to
     *  @param bones Input bones
    */
    void AttachChilds_Mesh(int iParentID,aiNode* piParent,BoneList& bones);

    // -------------------------------------------------------------------
    /** Build unique vertex buffers from a given MD5ANIM
     *  @param meshSrc Input data
     */
    void MakeDataUnique (MD5::MeshDesc& meshSrc);

    // -------------------------------------------------------------------
    /** Load the contents of a specific file into memory and
     *  allocates a buffer to keep it.
     *
     *  mBuffer is modified to point to this buffer.
     *  @param pFile File stream to be read
    */
    void LoadFileIntoMemory (IOStream* pFile);
    void UnloadFileFromMemory ();


    /** IOSystem to be used to access files */
    IOSystem* mIOHandler;

    /** Path to the file, excluding the file extension but
        with the dot */
    std::string mFile;

    /** Buffer to hold the loaded file */
    char* mBuffer;

    /** Size of the file */
    unsigned int fileSize;

    /** Current line number. For debugging purposes */
    unsigned int iLineNumber;

    /** Scene to be filled */
    aiScene* pScene;

    /** (Custom) I/O handler implementation */
    IOSystem* pIOHandler;

    /** true if a MD5MESH file has already been parsed */
    bool bHadMD5Mesh;

    /** true if a MD5ANIM file has already been parsed */
    bool bHadMD5Anim;

    /** true if a MD5CAMERA file has already been parsed */
    bool bHadMD5Camera;

    /** configuration option: prevent anim autoload */
    bool configNoAutoLoad;
};

} // end of namespace Assimp

#endif // AI_3DSIMPORTER_H_INC