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+/* 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.
+ *
+ */
+
+#ifndef SCUMM_PLAYERS_PLAYER_MOD_H
+#define SCUMM_PLAYERS_PLAYER_MOD_H
+
+#include "scumm/scumm.h"
+#include "audio/audiostream.h"
+#include "audio/mixer.h"
+
+namespace Audio {
+class RateConverter;
+}
+
+namespace Scumm {
+
+/**
+ * Generic Amiga MOD mixer - provides a 60Hz 'update' routine.
+ */
+class Player_MOD : public Audio::AudioStream {
+public:
+ Player_MOD(Audio::Mixer *mixer);
+ virtual ~Player_MOD();
+ virtual void setMusicVolume(int vol);
+
+ virtual void startChannel(int id, void *data, int size, int rate, uint8 vol, int loopStart = 0, int loopEnd = 0, int8 pan = 0);
+ virtual void stopChannel(int id);
+ virtual void setChannelVol(int id, uint8 vol);
+ virtual void setChannelPan(int id, int8 pan);
+ virtual void setChannelFreq(int id, int freq);
+
+ typedef void ModUpdateProc(void *param);
+
+ virtual void setUpdateProc(ModUpdateProc *proc, void *param, int freq);
+ virtual void clearUpdateProc();
+
+ // AudioStream API
+ int readBuffer(int16 *buffer, const int numSamples) {
+ do_mix(buffer, numSamples / 2);
+ return numSamples;
+ }
+ bool isStereo() const { return true; }
+ bool endOfData() const { return false; }
+ int getRate() const { return _sampleRate; }
+
+private:
+ enum {
+ MOD_MAXCHANS = 24
+ };
+
+ struct soundChan {
+ int id;
+ uint8 vol;
+ int8 pan;
+ uint16 freq;
+
+ uint32 ctr;
+ int16 pos;
+ Audio::AudioStream *input;
+ };
+
+ Audio::Mixer *_mixer;
+ Audio::SoundHandle _soundHandle;
+
+ uint32 _mixamt;
+ uint32 _mixpos;
+ const int _sampleRate;
+
+ soundChan _channels[MOD_MAXCHANS];
+
+ uint8 _maxvol;
+
+ virtual void do_mix(int16 *buf, uint len);
+
+ ModUpdateProc *_playproc;
+ void *_playparam;
+};
+
+} // End of namespace Scumm
+
+#endif