aboutsummaryrefslogtreecommitdiff
path: root/engines/tinsel/sound.cpp
blob: 0a32ab143f44a582558d3da75635e12de627f7fb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
/* 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.
 *
 * $URL$
 * $Id$
 *
 * sound functionality
 */

#include "tinsel/sound.h"

#include "tinsel/dw.h"
#include "tinsel/config.h"
#include "tinsel/music.h"
#include "tinsel/strres.h"
#include "tinsel/tinsel.h"
#include "tinsel/sysvar.h"
#include "tinsel/background.h"

#include "common/config-manager.h"
#include "common/endian.h"
#include "common/file.h"
#include "common/system.h"

#include "sound/mixer.h"
#include "sound/decoders/adpcm.h"
#include "sound/decoders/flac.h"
#include "sound/decoders/mp3.h"
#include "sound/decoders/raw.h"
#include "sound/decoders/vag.h"
#include "sound/decoders/vorbis.h"

#include "gui/message.h"

namespace Tinsel {

extern LANGUAGE sampleLanguage;

//--------------------------- General data ----------------------------------

SoundManager::SoundManager(TinselEngine *vm) :
	//_vm(vm),	// TODO: Enable this once global _vm var is gone
	_sampleIndex(0), _sampleIndexLen(0),
	_soundMode(kVOCMode) {

	for (int i = 0; i < kNumChannels; i++)
		_channels[i].sampleNum = _channels[i].subSample = -1;
}

SoundManager::~SoundManager() {
	free(_sampleIndex);
}

/**
 * Plays the specified sample through the sound driver.
 * @param id			Identifier of sample to be played
 * @param type			type of sound (voice or sfx)
 * @param handle		sound handle
 */
// playSample for DiscWorld 1
bool SoundManager::playSample(int id, Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {
	// Floppy version has no sample file
	if (_vm->getFeatures() & GF_FLOPPY)
		return false;

	// no sample driver?
	if (!_vm->_mixer->isReady())
		return false;

	Channel &curChan = _channels[kChannelTinsel1];

	// stop any currently playing sample
	_vm->_mixer->stopHandle(curChan.handle);

	// make sure id is in range
	assert(id > 0 && id < _sampleIndexLen);

	curChan.sampleNum = id;
	curChan.subSample = 0;

	// get file offset for this sample
	uint32 dwSampleIndex = _sampleIndex[id];

	// move to correct position in the sample file
	_sampleStream.seek(dwSampleIndex);
	if (_sampleStream.eos() || _sampleStream.err() || (uint32)_sampleStream.pos() != dwSampleIndex)
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

	// read the length of the sample
	uint32 sampleLen = _sampleStream.readUint32LE();
	if (_sampleStream.eos() || _sampleStream.err())
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

	if (TinselV1PSX) {
		// Read the stream and create a VAG Audio stream
		Audio::AudioStream *vagStream = Audio::makeVagStream(_sampleStream.readStream(sampleLen), 44100);

		// FIXME: Should set this in a different place ;)
		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, _vm->_config->_soundVolume);
		//_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, soundVolumeMusic);
		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, _vm->_config->_voiceVolume);

		// Play the audio stream
		_vm->_mixer->playStream(type, &curChan.handle, vagStream);
	} else {
		// allocate a buffer
		byte *sampleBuf = (byte *)malloc(sampleLen);
		assert(sampleBuf);

		// read all of the sample
		if (_sampleStream.read(sampleBuf, sampleLen) != sampleLen)
			error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

		// FIXME: Should set this in a different place ;)
		bool mute = false;
		if (ConfMan.hasKey("mute"))
			mute = ConfMan.getBool("mute");

		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, mute ? 0 : _vm->_config->_soundVolume);
		//_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, soundVolumeMusic);
		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, mute ? 0 : _vm->_config->_voiceVolume);

		Audio::AudioStream *sampleStream = 0;

		// play it
		switch (_soundMode) {
		case kMP3Mode:
#ifdef USE_MAD
			{
			Common::MemoryReadStream *compressedStream =
				new Common::MemoryReadStream(sampleBuf, sampleLen, DisposeAfterUse::YES);
			sampleStream = Audio::makeMP3Stream(compressedStream, DisposeAfterUse::YES);
			}
#endif
			break;
		case kVorbisMode:
#ifdef USE_VORBIS
			{
			Common::MemoryReadStream *compressedStream =
				new Common::MemoryReadStream(sampleBuf, sampleLen, DisposeAfterUse::YES);
			sampleStream = Audio::makeVorbisStream(compressedStream, DisposeAfterUse::YES);
			}
#endif
			break;
		case kFLACMode:
#ifdef USE_FLAC
			{
			Common::MemoryReadStream *compressedStream =
				new Common::MemoryReadStream(sampleBuf, sampleLen, DisposeAfterUse::YES);
			sampleStream = Audio::makeFLACStream(compressedStream, DisposeAfterUse::YES);
			}
#endif
			break;
		default:
			sampleStream = Audio::makeRawStream(sampleBuf, sampleLen, 22050, Audio::FLAG_UNSIGNED);
			break;
		}
		if (sampleStream) {
			_vm->_mixer->playStream(type, &curChan.handle, sampleStream);
		}
	}

	if (handle)
		*handle = curChan.handle;

	return true;
}

// playSample for DiscWorld 2
bool SoundManager::playSample(int id, int sub, bool bLooped, int x, int y, int priority,
		Audio::Mixer::SoundType type, Audio::SoundHandle *handle) {

	// Floppy version has no sample file
	if (_vm->getFeatures() & GF_FLOPPY)
		return false;

	// no sample driver?
	if (!_vm->_mixer->isReady())
		return false;

	Channel *curChan;

	uint8 sndVol = 255;

	// Sample on screen?
	if (!offscreenChecks(x, y))
		return false;

	// If that sample is already playing, stop it
	stopSpecSample(id, sub);

	if (type == Audio::Mixer::kSpeechSoundType) {
		curChan = &_channels[kChannelTalk];
	} else if (type == Audio::Mixer::kSFXSoundType) {
		uint32 oldestTime = g_system->getMillis();
		int	oldestChan = kChannelSFX;

		int chan;
		for (chan = kChannelSFX; chan < kNumChannels; chan++) {
			if (!_vm->_mixer->isSoundHandleActive(_channels[chan].handle))
				break;

			if ((_channels[chan].lastStart <  oldestTime) &&
			    (_channels[chan].priority  <= priority)) {

				oldestTime = _channels[chan].lastStart;
				oldestChan = chan;
			}
		}

		if (chan == kNumChannels) {
			if (_channels[oldestChan].priority > priority) {
				warning("playSample: No free channel");
				return false;
			}

			chan = oldestChan;
		}

		if (_vm->_pcmMusic->isDimmed() && SysVar(SYS_SceneFxDimFactor))
			sndVol = 255 - 255/SysVar(SYS_SceneFxDimFactor);

		curChan = &_channels[chan];
	} else {
		warning("playSample: Unknown SoundType");
		return false;
	}

	// stop any currently playing sample
	_vm->_mixer->stopHandle(curChan->handle);

	// make sure id is in range
	assert(id > 0 && id < _sampleIndexLen);

	// get file offset for this sample
	uint32 dwSampleIndex = _sampleIndex[id];

	if (dwSampleIndex == 0) {
		warning("Tinsel2 playSample, non-existant sample %d", id);
		return false;
	}

	// move to correct position in the sample file
	_sampleStream.seek(dwSampleIndex);
	if (_sampleStream.eos() || _sampleStream.err() || (uint32)_sampleStream.pos() != dwSampleIndex)
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

	// read the length of the sample
	uint32 sampleLen = _sampleStream.readUint32LE();
	if (_sampleStream.eos() || _sampleStream.err())
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

	if (sampleLen & 0x80000000) {
		// Has sub samples

		int32 numSubs = sampleLen & ~0x80000000;

		assert(sub >= 0 && sub < numSubs);

		// Skipping
		for (int32 i = 0; i < sub; i++) {
			sampleLen = _sampleStream.readUint32LE();
			_sampleStream.skip(sampleLen);
			if (_sampleStream.eos() || _sampleStream.err())
				error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));
		}
		sampleLen = _sampleStream.readUint32LE();
		if (_sampleStream.eos() || _sampleStream.err())
			error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));
	}

	debugC(DEBUG_DETAILED, kTinselDebugSound, "Playing sound %d.%d, %d bytes at %d (pan %d)", id, sub, sampleLen,
			_sampleStream.pos(), getPan(x));

	// allocate a buffer
	byte *sampleBuf = (byte *) malloc(sampleLen);
	assert(sampleBuf);

	// read all of the sample
	if (_sampleStream.read(sampleBuf, sampleLen) != sampleLen)
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

	Common::MemoryReadStream *compressedStream =
		new Common::MemoryReadStream(sampleBuf, sampleLen, DisposeAfterUse::YES);
	Audio::AudioStream *sampleStream = 0;

	switch (_soundMode) {
	case kMP3Mode:
#ifdef USE_MAD
		sampleStream = Audio::makeMP3Stream(compressedStream, DisposeAfterUse::YES);
#endif
		break;
	case kVorbisMode:
#ifdef USE_VORBIS
		sampleStream = Audio::makeVorbisStream(compressedStream, DisposeAfterUse::YES);
#endif
		break;
	case kFLACMode:
#ifdef USE_FLAC
		sampleStream = Audio::makeFLACStream(compressedStream, DisposeAfterUse::YES);
#endif
		break;
	default:
		sampleStream = Audio::makeADPCMStream(compressedStream, DisposeAfterUse::YES, sampleLen, Audio::kADPCMTinsel6, 22050, 1, 24);
		break;
	}

	// FIXME: Should set this in a different place ;)
	bool mute = false;
	if (ConfMan.hasKey("mute"))
		mute = ConfMan.getBool("mute");

	_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, mute ? 0 : _vm->_config->_soundVolume);
	//_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, soundVolumeMusic);
	_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, mute ? 0 : _vm->_config->_voiceVolume);

	curChan->sampleNum = id;
	curChan->subSample = sub;
	curChan->looped = bLooped;
	curChan->x = x;
	curChan->y = y;
	curChan->priority = priority;
	curChan->lastStart = g_system->getMillis();
	//                         /---Compression----\    Milis   BytesPerSecond
	// not needed and won't work when using MP3/OGG/FLAC anyway
	//curChan->timeDuration = (((sampleLen * 64) / 25) * 1000) / (22050 * 2);

	// Play it
	_vm->_mixer->playStream(type, &curChan->handle, sampleStream);

	_vm->_mixer->setChannelVolume(curChan->handle, sndVol);
	_vm->_mixer->setChannelBalance(curChan->handle, getPan(x));

	if (handle)
		*handle = curChan->handle;

	return true;
}

/**
 * Returns FALSE if sample doesn't need playing
 */
bool SoundManager::offscreenChecks(int x, int &y) {
	// No action if no x specification
	if (x == -1)
		return true;

	// convert x to offset from screen centre
	x -= PlayfieldGetCentreX(FIELD_WORLD);

	if (x < -SCREEN_WIDTH || x > SCREEN_WIDTH) {
		// A long way offscreen, ignore it
		return false;
	} else if (x < -SCREEN_WIDTH/2 || x > SCREEN_WIDTH/2) {
		// Off-screen, attennuate it

		y = (y > 0) ? (y / 2) : 50;

		return true;
	} else
		return true;
}

int8 SoundManager::getPan(int x) {

	if (x == -1)
		return 0;

	x -= PlayfieldGetCentreX(FIELD_WORLD);

	if (x == 0)
		return 0;

	if (x < 0) {
		if (x < (-SCREEN_WIDTH / 2))
			return -127;

		x = (-x * 127) / (SCREEN_WIDTH / 2);

		return 0 - x;
	}

	if (x > (SCREEN_WIDTH / 2))
		return 127;

	x = (x * 127) / (SCREEN_WIDTH / 2);

	return x;
}

/**
 * Returns TRUE if there is a sample for the specified sample identifier.
 * @param id			Identifier of sample to be checked
 */
bool SoundManager::sampleExists(int id) {
	if (_vm->_mixer->isReady())	{
		// make sure id is in range
		if (id > 0 && id < _sampleIndexLen) {
			// check for a sample index
			if (_sampleIndex[id])
				return true;
		}
	}

	// no sample driver or no sample
	return false;
}

/**
 * Returns true if a sample is currently playing.
 */
bool SoundManager::sampleIsPlaying(int id) {
	if (!TinselV2)
		return _vm->_mixer->isSoundHandleActive(_channels[kChannelTinsel1].handle);

	for (int i = 0; i < kNumChannels; i++)
		if (_channels[i].sampleNum == id)
			if (_vm->_mixer->isSoundHandleActive(_channels[i].handle))
				return true;

	return false;
}

/**
 * Stops any currently playing sample.
 */
void SoundManager::stopAllSamples() {
	// stop currently playing sample

	if (!TinselV2) {
		_vm->_mixer->stopHandle(_channels[kChannelTinsel1].handle);
		return;
	}

	for (int i = 0; i < kNumChannels; i++)
		_vm->_mixer->stopHandle(_channels[i].handle);
}

void SoundManager::stopSpecSample(int id, int sub) {
	debugC(DEBUG_DETAILED, kTinselDebugSound, "stopSpecSample(%d, %d)", id, sub);

	if (!TinselV2) {
		if (_channels[kChannelTinsel1].sampleNum == id)
			_vm->_mixer->stopHandle(_channels[kChannelTinsel1].handle);
		return;
	}

	for (int i = kChannelTalk; i < kNumChannels; i++) {
		if ((_channels[i].sampleNum == id) && (_channels[i].subSample == sub))
			_vm->_mixer->stopHandle(_channels[i].handle);
	}
}

void SoundManager::setSFXVolumes(uint8 volume) {
	if (!TinselV2)
		return;

	for (int i = kChannelSFX; i < kNumChannels; i++)
		_vm->_mixer->setChannelVolume(_channels[i].handle, volume);
}

/**
 * Opens and inits all sound sample files.
 */
void SoundManager::openSampleFiles() {
	// Floppy and demo versions have no sample files, except for the Discworld 2 demo
	if (_vm->getFeatures() & GF_FLOPPY || (IsDemo && !TinselV2))
		return;

	TinselFile f;

	if (_sampleIndex)
		// already allocated
		return;

	// open sample index file in binary mode
	if (f.open(_vm->getSampleIndex(sampleLanguage)))	{
		// get length of index file
		f.seek(0, SEEK_END);		// move to end of file
		_sampleIndexLen = f.pos();	// get file pointer
		f.seek(0, SEEK_SET);		// back to beginning

		if (_sampleIndex == NULL) {
			// allocate a buffer for the indices
			_sampleIndex = (uint32 *)malloc(_sampleIndexLen);

			// make sure memory allocated
			if (_sampleIndex == NULL) {
				// disable samples if cannot alloc buffer for indices
				// TODO: Disabled sound if we can't load the sample index?
				return;
			}
		}

		// load data
		if (f.read(_sampleIndex, _sampleIndexLen) != (uint32)_sampleIndexLen)
			// file must be corrupt if we get to here
			error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));

		// close the file
		f.close();

		// convert file size to size in DWORDs
		_sampleIndexLen /= sizeof(uint32);

#ifdef SCUMM_BIG_ENDIAN
		// Convert all ids from LE to native format
		for (int i = 0; i < _sampleIndexLen; ++i) {
			_sampleIndex[i] = SWAP_BYTES_32(_sampleIndex[i]);
		}
#endif

		// Detect format of soundfile by looking at 1st sample-index
		switch (TO_BE_32(_sampleIndex[0])) {
		case MKID_BE('MP3 '):
			debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected MP3 sound-data");
			_soundMode = kMP3Mode;
			break;

		case MKID_BE('OGG '):
			debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected OGG sound-data");
			_soundMode = kVorbisMode;
			break;

		case MKID_BE('FLAC'):
			debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected FLAC sound-data");
			_soundMode = kFLACMode;
			break;

		default:
			debugC(DEBUG_DETAILED, kTinselDebugSound, "Detected original sound-data");
			break;
		}
		// Normally the 1st sample-index points to nothing at all
		_sampleIndex[0] = 0;
	} else {
		char buf[50];
		sprintf(buf, CANNOT_FIND_FILE, _vm->getSampleIndex(sampleLanguage));
		GUI::MessageDialog dialog(buf, "OK");
		dialog.runModal();

		error(CANNOT_FIND_FILE, _vm->getSampleIndex(sampleLanguage));
	}

	// open sample file in binary mode
	if (!_sampleStream.open(_vm->getSampleFile(sampleLanguage))) {
		char buf[50];
		sprintf(buf, CANNOT_FIND_FILE, _vm->getSampleFile(sampleLanguage));
		GUI::MessageDialog dialog(buf, "OK");
		dialog.runModal();

		error(CANNOT_FIND_FILE, _vm->getSampleFile(sampleLanguage));
	}

/*
	// gen length of the largest sample
	sampleBuffer.size = _sampleStream.readUint32LE();
	if (_sampleStream.eos() || _sampleStream.err())
		error(FILE_IS_CORRUPT, _vm->getSampleFile(sampleLanguage));
*/
}

void SoundManager::closeSampleStream() {
	_sampleStream.close();
	free(_sampleIndex);
	_sampleIndex = 0;
	_sampleIndexLen = 0;
}

} // End of namespace Tinsel