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+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2007 The ScummVM project
+ *
+ * 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_INFOGRAMES_H
+#define SOUND_MODS_INFOGRAMES_H
+
+#include "sound/mods/paula.h"
+#include "common/stream.h"
+#include "common/file.h"
+
+namespace Audio {
+
+/** A player for the Infogrames/RobHubbard2 format */
+class Infogrames : public Paula {
+public:
+ class Instruments {
+ public:
+ Instruments();
+ template<typename T> Instruments(T ins) {
+ init();
+ bool result = load(ins);
+ assert(result);
+ }
+ ~Instruments();
+
+ bool load(Common::SeekableReadStream &ins);
+ bool load(const char *ins) {
+ Common::File f;
+
+ if (f.open(ins))
+ return load(f);
+ return false;
+ }
+ void unload(void);
+
+ uint8 getCount(void) const { return _count; }
+
+ protected:
+ struct Sample {
+ int8 *data;
+ int8 *dataRepeat;
+ uint32 length;
+ uint32 lengthRepeat;
+ } _samples[32];
+
+ uint8 _count;
+ int8 *_sampleData;
+
+ void init();
+
+ friend class Infogrames;
+ };
+
+ Infogrames(Instruments &ins, bool stereo = false, int rate = 44100);
+ ~Infogrames();
+
+ Instruments *getInstruments(void) const { return _instruments; }
+ bool getRepeating(void) const { return _repCount != 0; }
+ void setRepeating (int32 repCount) { _repCount = repCount; }
+ virtual void startPlay(void) { _playing = true;}
+ virtual void stopPlay(void)
+ {
+ _mutex.lock();
+ _playing = false;
+ _mutex.unlock();
+ }
+ virtual void pausePlay(bool pause) { _playing = !pause; }
+
+ bool load(Common::SeekableReadStream &dum);
+ bool load(const char *dum) {
+ Common::File f;
+
+ if (f.open(dum))
+ return load(f);
+ return false;
+ }
+ void unload(void);
+ void restart(void) { if (_data) { stopPlay(); init(); startPlay(); } }
+
+protected:
+ Instruments *_instruments;
+
+ static const uint8 tickCount[];
+ static const uint16 periods[];
+ byte *_data;
+ int32 _repCount;
+
+ byte *_subSong;
+ byte *_cmdBlocks;
+ byte *_volSlideBlocks;
+ byte *_periodSlideBlocks;
+ uint8 _speedCounter;
+ uint8 _speed;
+
+ uint16 _volume;
+ int16 _period;
+ uint8 _sample;
+
+ struct Slide {
+ byte *data;
+ int8 amount;
+ uint8 dataOffset;
+ int16 finetuneNeg;
+ int16 finetunePos;
+ uint8 curDelay1;
+ uint8 curDelay2;
+ uint8 flags; // 0: Apply finetune modifier, 2: Don't slide, 7: Continuous
+ };
+ struct Channel {
+ byte *cmdBlockIndices;
+ byte *cmdBlocks;
+ byte *cmds;
+ uint8 ticks;
+ uint8 tickCount;
+ Slide volSlide;
+ Slide periodSlide;
+ int16 period;
+ int8 periodMod;
+ uint8 flags; // 0: Need init, 5: Loop cmdBlocks, 6: Ignore channel
+ } _chn[4];
+
+ void init(void);
+ void reset(void);
+ void getNextSample(Channel &chn);
+ int16 tune(Slide &slide, int16 start) const;
+ virtual void interrupt(void);
+};
+
+} // End of namespace Audio
+
+#endif