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Diffstat (limited to 'engines/scumm/players/player_v1.h')
-rw-r--r-- | engines/scumm/players/player_v1.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/engines/scumm/players/player_v1.h b/engines/scumm/players/player_v1.h new file mode 100644 index 0000000000..ccd24c39df --- /dev/null +++ b/engines/scumm/players/player_v1.h @@ -0,0 +1,98 @@ +/* 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_V1_H +#define SCUMM_PLAYERS_PLAYER_V1_H + +#include "scumm/players/player_v2.h" + +namespace Scumm { + +/** + * Scumm V1 PC-Speaker player. + */ +class Player_V1 : public Player_V2 { +public: + Player_V1(ScummEngine *scumm, Audio::Mixer *mixer, bool pcjr); + ~Player_V1(); + + virtual void startSound(int sound); + virtual void stopSound(int sound); + virtual void stopAllSounds(); + virtual int getMusicTimer(); + +protected: + virtual void nextTick(); + virtual void clear_channel(int i); + virtual void chainSound(int nr, byte *data); + + virtual void generateSpkSamples(int16 *data, uint len); + virtual void generatePCjrSamples(int16 *data, uint len); + + void restartSound(); + + void set_mplex(uint mplex); + void parseSpeakerChunk(); + void nextSpeakerCmd(); + void parsePCjrChunk(); + void nextPCjrCmd(); + +private: + struct channel_data_v1 { + uint freq; + uint volume; + byte *cmd_ptr; + uint notelen; + uint hull_counter; + uint attack; + uint decay; + uint level; + uint sustain_1; + uint sustain_2; + int sustctr; + }; + + channel_data_v1 _channels[4]; + + byte *_next_chunk; + byte *_repeat_chunk; + uint _chunk_type; + uint _mplex_step; + uint _mplex; + uint _repeat_ctr; + uint _freq_current; + int _forced_level; + uint16 _random_lsr; + uint *_value_ptr; + uint _time_left; + uint _start; + uint _end; + int _delta; + uint *_value_ptr_2; + uint _time_left_2; + uint _start_2; + int _delta_2; +}; + +} // End of namespace Scumm + +#endif |