Source: midfile.h

# Source: midfile.h |
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    /*  midfile.h  - function which reads a midi file,and creates the track classes
        This file is part of LibKMid 0.9.5
        Copyright (C) 1997,98,99,2000  Antonio Larrosa Jimenez
        LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html

        This library is free software; you can redistribute it and/or
        modify it under the terms of the GNU Library General Public
        License as published by the Free Software Foundation; either
        version 2 of the License, or (at your option) any later version.

        This library is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        Library General Public License for more details.

        You should have received a copy of the GNU Library General Public License
        along with this library; see the file COPYING.LIB.  If not, write to
        the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
        Boston, MA 02111-1307, USA.

        Send comments and bug fixes to Antonio Larrosa

     ***************************************************************************/
    #ifndef _MIDFILE_H
    #define _MIDFILE_H

    #include
    #include
    #include

    /**
     * Contains all the information about a MIDI file.
     *
     * @short All the information about a MIDI file.
     * @version 0.9.5 17/01/2000
     * @author Antonio Larrosa Jimenez
     */
    struct MidiFileInfo
    {
      /**
       * Format of MIDI file.
       */
      int format;

      /**
       * Number of tracks.
       */
      int ntracks;

      /**
       * Ticks per cuarter note.
       */
      int ticksPerCuarterNote;

      /**
       * Total number of MIDI ticks
       */
      ulong ticksTotal;

      /**
       * Total number of milliseconds
       */
      double millisecsTotal;

      ulong ticksPlayed;

      /**
       * Patches used in the MIDI file.
       *
       * In each position of the array it stores the number of times the
       * corresponding patch is used. So, if a MIDI file plays 782 notes
       * with a piano, patchesUsed[0] will store 782. In the same way,
       * if it doesn't use the Music Box patch, patchesUsed[10] will be 0.
       *
       */
      int patchesUsed[256];

    };

    double tempoToMetronomeTempo(ulong x);
    double metronomeTempoToTempo(ulong x);

    /**
     * Reads a midi file.
     *
     * @param name the filename of the midi file to load.
     * @param info a pointer to the @ref MidiFileInfo struct that will be
     *     filled with the information of the loaded file.
     * @param ok return status.
     * @return an array of @ref MidiTrack objects with the contents of the file.
     */
    MidiTrack **readMidiFile( const char *name, MidiFileInfo *info, int &ok);

    void parseInfoData( MidiFileInfo *info, MidiTrack **tracks, float ratioTempo);

    void parsePatchesUsed( MidiTrack **tracks, MidiFileInfo *info, int gm);

    #endif

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