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module.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program 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 General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef SOUND_MODS_MODULE_H
#define SOUND_MODS_MODULE_H

#include "common/scummsys.h"

namespace Common {
class SeekableReadStream;
}

namespace Modules {

#include "common/pack-start.h"      // START STRUCT PACKING

00039 struct note_t {
      byte sample;
      byte note;
      uint16 period;
      uint16 effect;
} PACKED_STRUCT;

#include "common/pack-end.h"  // END STRUCT PACKING

typedef note_t pattern_t[64][4];

00050 struct sample_t {
      byte name[23];
      uint16 len;
      byte finetune;
      byte vol;
      uint16 repeat;
      uint16 replen;
      int8 *data;
};

00060 struct sample_offs {
      byte name[23];
      uint16 len;
      uint32 offs;
};

00066 class Module {
public:
      byte songname[21];

      static const int NUM_SAMPLES = 31;
      sample_t sample[NUM_SAMPLES];
      sample_offs commonSamples[NUM_SAMPLES];

      byte songlen;
      byte undef;
      byte songpos[128];
      uint32 sig;
      pattern_t *pattern;

      Module();
      ~Module();

      bool load(Common::SeekableReadStream &stream, int offs);
      static byte periodToNote(int16 period, byte finetune = 0);
      static int16 noteToPeriod(byte note, byte finetune = 0);

private:
      static const int16 periods[16][60];
      static const uint32 signatures[];
};

} // End of namespace Modules

#endif

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