From cc5fb7fc58283512a344dc1f49698e1426788602 Mon Sep 17 00:00:00 2001
From: Paweł Kołodziejski
Date: Sun, 25 Apr 2004 17:24:17 +0000
Subject: dropped pull method for imuse

svn-id: r13628
---
 scumm/imuse_digi/dimuse.cpp       | 174 +-------------------------------------
 scumm/imuse_digi/dimuse.h         |  14 ---
 scumm/imuse_digi/dimuse_track.cpp |  21 -----
 3 files changed, 1 insertion(+), 208 deletions(-)

(limited to 'scumm/imuse_digi')

diff --git a/scumm/imuse_digi/dimuse.cpp b/scumm/imuse_digi/dimuse.cpp
index 83c1688bf4..23bf682865 100644
--- a/scumm/imuse_digi/dimuse.cpp
+++ b/scumm/imuse_digi/dimuse.cpp
@@ -78,177 +78,6 @@ void IMuseDigital::resetState() {
 	_nextSeqToPlay = 0;
 }
 
-#ifdef ENABLE_PULLMETHOD
-
-int IMuseDigital::pullProcCallback(void *refCon, CustomProcInputStream *stream, byte *mixerBuffer, int pullSize) {
-	IMuseDigital *imuseDigital = (IMuseDigital *)refCon;
-	return imuseDigital->pullProc(stream, mixerBuffer, pullSize);
-}
-
-int IMuseDigital::pullProc(CustomProcInputStream *stream, byte *mixerBuffer, int pullSize) {
-	Common::StackLock lock(_mutex, "IMuseDigital::pullProc()");
-	debug(5, "pullProc() pullSize:%d", pullSize);
-	for (int l = 0; l < MAX_DIGITAL_TRACKS + MAX_DIGITAL_FADETRACKS; l++) {
-		if ((_track[l]->used) && (_track[l]->stream == stream)) {
-			if (_track[l]->toBeRemoved) {
-				debug(5, "IMuseDigital::pullProc() stopped sound: %d", _track[l]->soundId);
-				_track[l]->stream->finish();
-				_track[l]->stream = NULL;
-				_sound->closeSound(_track[l]->soundHandle);
-				_track[l]->soundHandle = NULL;
-				_track[l]->used = false;
-				return 0;
-			}
-			_vm->_mixer->setChannelVolume(_track[l]->handle, _track[l]->mixerVol);
-			_vm->_mixer->setChannelBalance(_track[l]->handle, _track[l]->mixerPan);
-			int32 mixer_size = pullSize;
-			byte *data = NULL;
-			int32 result = 0, pos = 0;
-
-			if (_track[l]->curRegion == -1) {
-				switchToNextRegion(l);
-				if (_track[l]->toBeRemoved) {
-					return 0;
-				}
-			}
-
-			int bits = _sound->getBits(_track[l]->soundHandle);
-			int channels = _sound->getChannels(_track[l]->soundHandle);
-
-			if ((bits == 16) && (channels == 2))
-				assert((pullSize & 3) == 0);
-			else if ((bits == 16) || (channels == 2))
-				assert((pullSize & 1) == 0);
-
-			do {
-				if (bits == 12) {
-					byte *ptr = NULL;
-
-					mixer_size += _track[l]->mod;
-					int mixer_size_12 = (mixer_size * 3) / 4;
-					int length = (mixer_size_12 / 3) * 4;
-					_track[l]->mod = mixer_size - length;
-
-					int32 offset = (_track[l]->regionOffset * 3) / 4;
-					int result2 = _sound->getDataFromRegion(_track[l]->soundHandle, _track[l]->curRegion, &ptr, offset, mixer_size_12);
-					result = BundleCodecs::decode12BitsSample(ptr, &data, result2);
-
-					free(ptr);
-				} else if (bits == 16) {
-					result = _sound->getDataFromRegion(_track[l]->soundHandle, _track[l]->curRegion, &data, _track[l]->regionOffset, mixer_size);
-					if (_sound->getChannels(_track[l]->soundHandle) == 1) {
-						result &= ~1;
-					}
-					if (_sound->getChannels(_track[l]->soundHandle) == 2) {
-						if (result & 2)
-							result &= ~2;
-					}
-				} else if (bits == 8) {
-					result = _sound->getDataFromRegion(_track[l]->soundHandle, _track[l]->curRegion, &data, _track[l]->regionOffset, mixer_size);
-					if (_sound->getChannels(_track[l]->soundHandle) == 2) {
-						result &= ~1;
-					}
-				}
-
-				if (result > mixer_size)
-					result = mixer_size;
-
-				memcpy(mixerBuffer + pos, data, result);
-				pos += result;
-				free(data);
-
-				_track[l]->regionOffset += result;
-				_track[l]->trackOffset += result;
-					
-				if (_sound->isEndOfRegion(_track[l]->soundHandle, _track[l]->curRegion)) {
-					switchToNextRegion(l);
-					if (_track[l]->toBeRemoved) {
-						mixer_size -= result;
-						return pullSize - mixer_size;
-					}
-				}
-				mixer_size -= result;
-				assert(mixer_size >= 0);
-			} while (mixer_size != 0);
-			return pullSize;
-		}
-	}
-	error("IMuseDigital::pullProc() Can't match streams");
-}
-
-void IMuseDigital::callback() {
-	Common::StackLock lock(_mutex, "IMuseDigital::callback()");
-	int l = 0;
-
-	if (_pause || !_vm)
-		return;
-
-	for (l = 0; l < MAX_DIGITAL_TRACKS + MAX_DIGITAL_FADETRACKS; l++) {
-		if (_track[l]->used) {
-			if (_track[l]->stream2) {
-				if (!_track[l]->handle.isActive() && _track[l]->started) {
-					debug(5, "IMuseDigital::callback() A: stopped sound: %d", _track[l]->soundId);
-					delete _track[l]->stream2;
-					_track[l]->stream2 = NULL;
-					_track[l]->used = false;
-					continue;
-				}
-			}
-
-			if (_track[l]->volFadeUsed) {
-				if (_track[l]->volFadeStep < 0) {
-					if (_track[l]->vol > _track[l]->volFadeDest) {
-						_track[l]->vol += _track[l]->volFadeStep;
-						if (_track[l]->vol < _track[l]->volFadeDest) {
-							_track[l]->vol = _track[l]->volFadeDest;
-							_track[l]->volFadeUsed = false;
-						}
-						if (_track[l]->vol == 0) {
-							_track[l]->toBeRemoved = true;
-						}
-					}
-				} else if (_track[l]->volFadeStep > 0) {
-					if (_track[l]->vol < _track[l]->volFadeDest) {
-						_track[l]->vol += _track[l]->volFadeStep;
-						if (_track[l]->vol > _track[l]->volFadeDest) {
-							_track[l]->vol = _track[l]->volFadeDest;
-							_track[l]->volFadeUsed = false;
-						}
-					}
-				}
-				debug(5, "Fade: sound(%d), Vol(%d)", _track[l]->soundId, _track[l]->vol / 1000);
-			}
-
-			int pan = (_track[l]->pan != 64) ? 2 * _track[l]->pan - 127 : 0;
-			int vol = _track[l]->vol / 1000;
-
-			if (_track[l]->volGroupId == 1)
-				vol = (vol * _volVoice) / 128;
-			if (_track[l]->volGroupId == 2)
-				vol = (vol * _volSfx) / 128;
-			if (_track[l]->volGroupId == 3)
-				vol = (vol * _volMusic) / 128;
-
-			_track[l]->mixerVol = vol;
-			_track[l]->mixerPan = pan;
-
-			if (_vm->_mixer->isReady()) {
-				if (_track[l]->stream2) {
-					if (!_track[l]->started) {
-						_track[l]->started = true;
-						_vm->_mixer->playInputStream(&_track[l]->handle, _track[l]->stream2, false, _track[l]->vol / 1000, _track[l]->pan, -1, false);
-					} else {
-						_vm->_mixer->setChannelVolume(_track[l]->handle, vol);
-						_vm->_mixer->setChannelBalance(_track[l]->handle, pan);
-					}
-				}
-			}
-		}
-	}
-}
-
-#else
-
 void IMuseDigital::callback() {
 	Common::StackLock lock(_mutex, "IMuseDigital::callback()");
 	int l = 0;
@@ -382,7 +211,7 @@ void IMuseDigital::callback() {
 						_track[l]->trackOffset += result;
 						free(data);
 					}
-					
+
 					if (_sound->isEndOfRegion(_track[l]->soundHandle, _track[l]->curRegion)) {
 						switchToNextRegion(l);
 						if (_track[l]->toBeRemoved)
@@ -395,7 +224,6 @@ void IMuseDigital::callback() {
 		}
 	}
 }
-#endif
 
 void IMuseDigital::switchToNextRegion(int track) {
 	debug(5, "switchToNextRegion(track:%d)", track);
diff --git a/scumm/imuse_digi/dimuse.h b/scumm/imuse_digi/dimuse.h
index c49ff6bdf2..8d9d8f6c8d 100644
--- a/scumm/imuse_digi/dimuse.h
+++ b/scumm/imuse_digi/dimuse.h
@@ -33,10 +33,6 @@
 
 namespace Scumm {
 
-// enable below for pullmethod data transfer from imuse to sound mixer,
-// it's experimental and buggy
-//#define ENABLE_PULLMETHOD
-
 #define MAX_DIGITAL_TRACKS 8
 #define MAX_DIGITAL_FADETRACKS 8
 
@@ -67,20 +63,14 @@ private:
 		int volGroupId;
 		int iteration;
 		int mod;
-#ifndef ENABLE_PULLMETHOD
 		int32 pullSize;
-#endif
 		int32 mixerFlags;
 		int mixerVol;
 		int mixerPan;
 
 		ImuseDigiSndMgr::soundStruct *soundHandle;
 		PlayingSoundHandle handle;
-#ifndef ENABLE_PULLMETHOD
 		AppendableAudioStream *stream;
-#else
-		CustomProcInputStream *stream;
-#endif
 		AudioStream *stream2;
 
 		Track();
@@ -105,10 +95,6 @@ private:
 	int _curMusicCue;
 
 	static void timer_handler(void *refConf);
-#ifdef ENABLE_PULLMETHOD
-	static int pullProcCallback(void *refCon, CustomProcInputStream *stream, byte *mixerBuffer, int pullSize);
-	int pullProc(CustomProcInputStream *stream, byte *mixerBuffer, int pullSize);
-#endif
 	void callback();
 	void switchToNextRegion(int track);
 	void allocSlot(int priority);
diff --git a/scumm/imuse_digi/dimuse_track.cpp b/scumm/imuse_digi/dimuse_track.cpp
index ccac2296fd..7052b2aa88 100644
--- a/scumm/imuse_digi/dimuse_track.cpp
+++ b/scumm/imuse_digi/dimuse_track.cpp
@@ -58,14 +58,9 @@ void IMuseDigital::allocSlot(int priority) {
 				}
 			}
 			assert(track_id != -1);
-#ifndef ENABLE_PULLMETHOD
 			_track[track_id]->stream->finish();
 			_track[track_id]->stream = NULL;
 			_vm->_mixer->stopHandle(_track[track_id]->handle);
-#else
-			_vm->_mixer->stopHandle(_track[track_id]->handle);
-			_track[track_id]->stream = NULL;
-#endif
 			_sound->closeSound(_track[track_id]->soundHandle);
 			_track[track_id]->used = false;
 			assert(!_track[track_id]->handle.isActive());
@@ -144,26 +139,20 @@ void IMuseDigital::startSound(int soundId, const char *soundName, int soundType,
 				freq -= (freq % 25);
 
 				_track[l]->iteration = freq * channels;
-#ifndef ENABLE_PULLMETHOD
 				_track[l]->pullSize = _track[l]->iteration;
-#endif
 				if (channels == 2)
 					_track[l]->mixerFlags = SoundMixer::FLAG_STEREO | SoundMixer::FLAG_REVERSE_STEREO;
 
 				if ((bits == 12) || (bits == 16)) {
 					_track[l]->mixerFlags |= SoundMixer::FLAG_16BITS;
 					_track[l]->iteration *= 2;
-#ifndef ENABLE_PULLMETHOD
 					_track[l]->pullSize = _track[l]->iteration;
-#endif
 				} else if (bits == 8) {
 					_track[l]->mixerFlags |= SoundMixer::FLAG_UNSIGNED;
 				} else
 					error("IMuseDigital::startSound(): Can't handle %d bit samples", bits);
 
-#ifndef ENABLE_PULLMETHOD
 				_track[l]->pullSize /= 25;	// We want a "frame rate" of 25 audio blocks per second
-#endif
 			}
 
 			if (input) {
@@ -172,11 +161,7 @@ void IMuseDigital::startSound(int soundId, const char *soundName, int soundType,
 				_track[l]->started = false;
 			} else {
 				_track[l]->stream2 = NULL;
-#ifndef ENABLE_PULLMETHOD
 				_track[l]->stream = makeAppendableAudioStream(freq, _track[l]->mixerFlags, 100000);
-#else
-				_track[l]->stream = new CustomProcInputStream(freq, _track[l]->mixerFlags, (CustomProcInputStream::CustomInputProc)pullProcCallback, this);
-#endif
 				_vm->_mixer->playInputStream(&_track[l]->handle, _track[l]->stream, false, _track[l]->vol / 1000, _track[l]->pan, -1);
 				_track[l]->started = true;
 			}
@@ -299,9 +284,7 @@ int IMuseDigital::cloneToFadeOutTrack(int track, int fadeDelay, int killNormalTr
 	_track[track]->mixerVol = _track[fadeTrack]->mixerVol;
 	_track[track]->mixerPan = _track[fadeTrack]->mixerPan;
 	_track[track]->mod = _track[fadeTrack]->mod;
-#ifndef ENABLE_PULLMETHOD
 	_track[track]->pullSize = _track[fadeTrack]->pullSize;
-#endif
 	_track[track]->used = _track[fadeTrack]->used;
 	_track[track]->toBeRemoved = _track[fadeTrack]->toBeRemoved;
 	_track[track]->started = _track[fadeTrack]->started;
@@ -319,11 +302,7 @@ int IMuseDigital::cloneToFadeOutTrack(int track, int fadeDelay, int killNormalTr
 		_track[track]->used = false;
 	} else {
 		_track[track]->soundHandle = _sound->cloneSound(_track[fadeTrack]->soundHandle);
-#ifndef ENABLE_PULLMETHOD
 		_track[track]->stream = makeAppendableAudioStream(_sound->getFreq(_track[track]->soundHandle), _track[track]->mixerFlags, 100000);
-#else
-		_track[track]->stream = new CustomProcInputStream(_sound->getFreq(_track[track]->soundHandle), _track[track]->mixerFlags, (CustomProcInputStream::CustomInputProc)pullProcCallback, this);
-#endif
 		_vm->_mixer->playInputStream(&_track[track]->handle, _track[track]->stream, false, _track[track]->vol / 1000, _track[track]->pan, -1);
 		_track[track]->started = true;
 	}
-- 
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