diff options
Diffstat (limited to 'engines/scumm/players/player_mod.h')
-rw-r--r-- | engines/scumm/players/player_mod.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/engines/scumm/players/player_mod.h b/engines/scumm/players/player_mod.h new file mode 100644 index 0000000000..d4a5b16fca --- /dev/null +++ b/engines/scumm/players/player_mod.h @@ -0,0 +1,100 @@ +/* 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 |