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Diffstat (limited to 'engines/sci/sfx/iterator/iterator_internal.h')
| -rw-r--r-- | engines/sci/sfx/iterator/iterator_internal.h | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/engines/sci/sfx/iterator/iterator_internal.h b/engines/sci/sfx/iterator/iterator_internal.h deleted file mode 100644 index f41b388008..0000000000 --- a/engines/sci/sfx/iterator/iterator_internal.h +++ /dev/null @@ -1,276 +0,0 @@ -/* 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 SCI_SFX_SFX_ITERATOR_INTERNAL -#define SCI_SFX_SFX_ITERATOR_INTERNAL - -#include "sci/sci.h" // for USE_OLD_MUSIC_FUNCTIONS - -#ifdef USE_OLD_MUSIC_FUNCTIONS -#include "sci/sfx/iterator/iterator.h" -#include "sci/sfx/softseq/mididriver.h" - -#include "common/array.h" -#include "common/list.h" - -namespace Sci { - -/* Iterator types */ - -enum { - SI_STATE_UNINITIALISED = -1, - SI_STATE_DELTA_TIME = 0, ///< Now at a delta time - SI_STATE_COMMAND = 1, ///< Now at a MIDI operation - SI_STATE_PENDING = 2, ///< Pending for loop - SI_STATE_FINISHED = 3, ///< End of song - SI_STATE_PCM = 4, ///< Should report a PCM next (-> DELTA_TIME) - SI_STATE_PCM_MAGIC_DELTA = 5 ///< Should report a ``magic'' one tick delta time next (goes on to FINISHED) -}; - -struct SongIteratorChannel { - - int state; ///< State of this song iterator channel - int offset; ///< Offset into the data chunk */ - int end; ///< Last allowed byte in track */ - int id; ///< Some channel ID */ - - /** - * Number of ticks before the specified channel is next used, or - * CHANNEL_DELAY_MISSING to indicate that the delay has not yet - * been read. - */ - int delay; - - /* Two additional offsets for recovering: */ - int loop_offset; - int initial_offset; - - int playmask; ///< Active playmask (MIDI channels to play in here) */ - int loop_timepos; ///< Total delay for this channel's loop marker */ - int total_timepos; ///< Number of ticks since the beginning, ignoring loops */ - int timepos_increment; ///< Number of ticks until the next command (to add) */ - - byte last_cmd; ///< Last operation executed, for running status */ - -public: - void init(int id, int offset, int end); - void resetSynthChannels(); -}; - -class BaseSongIterator : public SongIterator { -public: - int _polyphony[MIDI_CHANNELS]; ///< # of simultaneous notes on each - - int _ccc; ///< Cumulative cue counter, for those who need it - byte _resetflag; ///< for 0x4C -- on DoSound StopSound, do we return to start? - int _deviceId; ///< ID of the device we generating events for - int _numActiveChannels; ///< Number of active channels - Common::Array<byte> _data; ///< Song data - - int _loops; ///< Number of loops remaining - -public: - BaseSongIterator(byte *data, uint size, songit_id_t id); - -protected: - int parseMidiCommand(byte *buf, int *result, SongIteratorChannel *channel, int flags); - int processMidi(byte *buf, int *result, SongIteratorChannel *channel, int flags); -}; - -/********************************/ -/*--------- SCI 0 --------------*/ -/********************************/ - -class Sci0SongIterator : public BaseSongIterator { -public: - SongIteratorChannel _channel; - -public: - Sci0SongIterator(byte *data, uint size, songit_id_t id); - - int nextCommand(byte *buf, int *result); - Audio::AudioStream *getAudioStream(); - SongIterator *handleMessage(Message msg); - void init(); - int getTimepos(); - SongIterator *clone(int delta); -}; - - -/********************************/ -/*--------- SCI 1 --------------*/ -/********************************/ - - -struct Sci1Sample { - /** - * Time left-- initially, this is 'Sample point 1'. - * After initialisation, it is 'sample point 1 minus the sample - * point of the previous sample' - */ - int delta; - int size; - bool announced; /* Announced for download (SI_PCM) */ - int rate; - byte *_data; -}; - -class Sci1SongIterator : public BaseSongIterator { -public: - SongIteratorChannel _channels[MIDI_CHANNELS]; - - /* Invariant: Whenever channels[i].delay == CHANNEL_DELAY_MISSING, - ** channel_offset[i] points to a delta time object. */ - - bool _initialised; /**!< Whether the MIDI channel setup has been initialised */ - int _numChannels; /**!< Number of channels actually used */ - Common::List<Sci1Sample> _samples; - int _numLoopedChannels; /**!< Number of channels that are ready to loop */ - - int _delayRemaining; /**!< Number of ticks that haven't been polled yet */ - int _hold; - -public: - Sci1SongIterator(byte *data, uint size, songit_id_t id); - ~Sci1SongIterator(); - - int nextCommand(byte *buf, int *result); - Audio::AudioStream *getAudioStream(); - SongIterator *handleMessage(Message msg); - void init(); - int getTimepos(); - SongIterator *clone(int delta); - -private: - int initSample(const int offset); - int initSong(); - - int getSmallestDelta() const; - - void updateDelta(int delta); - - /** Checks that none of the channels is waiting for its delta to be read */ - bool noDeltaTime() const; - - /** Determine the channel # of the next active event, or -1 */ - int getCommandIndex() const; -}; - -#define PLAYMASK_NONE 0x0 - -/***************************/ -/*--------- Timer ---------*/ -/***************************/ - -/** - * A song iterator which waits a specified time and then fires - * SI_FINISHED. Used by DoSound, where audio resources are played (SCI1) - */ -class TimerSongIterator : public SongIterator { -protected: - int _delta; /**!< Remaining time */ - -public: - TimerSongIterator(int delta) : _delta(delta) {} - - int nextCommand(byte *buf, int *result); - Audio::AudioStream *getAudioStream() { return NULL; } - SongIterator *handleMessage(Message msg) { return NULL; } - int getTimepos() { return 0; } - SongIterator *clone(int delta) { return new TimerSongIterator(*this); } -}; - -/**********************************/ -/*--------- Fast Forward ---------*/ -/**********************************/ - -/** - * A song iterator which fast-forwards another iterator. - * Skips all delta times until a specified 'delta' has been used up. - */ -class FastForwardSongIterator : public SongIterator { -protected: - SongIterator *_delegate; - int _delta; /**!< Remaining time */ - -public: - FastForwardSongIterator(SongIterator *capsit, int delta); - - int nextCommand(byte *buf, int *result); - Audio::AudioStream *getAudioStream(); - SongIterator *handleMessage(Message msg); - int getTimepos(); - SongIterator *clone(int delta); -}; - - -/**********************************/ -/*--------- Tee iterator ---------*/ -/**********************************/ - -enum { - TEE_LEFT = 0, - TEE_RIGHT = 1, - TEE_LEFT_ACTIVE = (1<<0), - TEE_RIGHT_ACTIVE = (1<<1), - TEE_LEFT_READY = (1<<2), /**!< left result is ready */ - TEE_RIGHT_READY = (1<<3), /**!< right result is ready */ - TEE_LEFT_PCM = (1<<4), - TEE_RIGHT_PCM = (1<<5) -}; - -/** - * This iterator combines two iterators, returns the next event available from either. - */ -class TeeSongIterator : public SongIterator { -public: - int _status; - - bool _readyToMorph; /**!< One of TEE_MORPH_* above */ - - struct { - SongIterator *it; - byte buf[4]; - int result; - int retval; - } _children[2]; - -public: - TeeSongIterator(SongIterator *left, SongIterator *right); - ~TeeSongIterator(); - - int nextCommand(byte *buf, int *result); - Audio::AudioStream *getAudioStream(); - SongIterator *handleMessage(Message msg); - void init(); - int getTimepos() { return 0; } - SongIterator *clone(int delta); -}; - -} // End of namespace Sci - -#endif // USE_OLD_MUSIC_FUNCTIONS - -#endif // SCI_SFX_SFX_ITERATOR_INTERNAL |