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authorTorbjörn Andersson2012-11-13 22:49:12 +0100
committerTorbjörn Andersson2012-11-13 22:49:12 +0100
commitb1d10e6a62ef49994e78b3e2c86b27050f2f0938 (patch)
treecc442cb35d9981f846481c0d4344f5d6e4571b8f
parent107a1af125cc77082cc205fcfa1b86c7509c26c5 (diff)
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SCUMM: Add support for Mac Loom music and sound
It turns out that playing the Mac Loom music isn't particularly different from playing the Monkey Island 1 music, except the data layout is a bit different and there's no per-note volume.
-rw-r--r--engines/scumm/module.mk1
-rw-r--r--engines/scumm/player_v3m.cpp433
-rw-r--r--engines/scumm/player_v3m.h113
-rw-r--r--engines/scumm/scumm.cpp3
-rw-r--r--engines/scumm/sound.cpp23
5 files changed, 553 insertions, 20 deletions
diff --git a/engines/scumm/module.mk b/engines/scumm/module.mk
index 474d517cbd..57a495a772 100644
--- a/engines/scumm/module.mk
+++ b/engines/scumm/module.mk
@@ -47,6 +47,7 @@ MODULE_OBJS := \
player_v2base.o \
player_v2cms.o \
player_v3a.o \
+ player_v3m.o \
player_v4a.o \
player_v5m.o \
resource_v2.o \
diff --git a/engines/scumm/player_v3m.cpp b/engines/scumm/player_v3m.cpp
new file mode 100644
index 0000000000..081f48f259
--- /dev/null
+++ b/engines/scumm/player_v3m.cpp
@@ -0,0 +1,433 @@
+/* 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.
+ *
+ */
+
+/*
+ We have the following information from Lars Christensen (lechimp) and
+ Jamieson Christian (jamieson630):
+
+ RESOURCE DATA
+ LE 2 bytes Resource size
+ 2 bytes Unknown
+ 2 bytes 'so'
+ 14 bytes Unknown
+ BE 2 bytes Instrument for Stream 1
+ BE 2 bytes Instrument for Stream 2
+ BE 2 bytes Instrument for Stream 3
+ BE 2 bytes Instrument for Stream 4
+ BE 2 bytes Instrument for Stream 5
+ BE 2 bytes Offset to Stream 1
+ BE 2 bytes Offset to Stream 2
+ BE 2 bytes Offset to Stream 3
+ BE 2 bytes Offset to Stream 4
+ BE 2 bytes Offset to Stream 5
+ ? bytes The streams
+
+ STREAM DATA
+ BE 2 bytes Unknown (always 1?)
+ 2 bytes Unknown (always 0?)
+ BE 2 bytes Number of events in stream
+ ? bytes Stream data
+
+ Each stream event is exactly 3 bytes, therefore one can
+ assert that numEvents == (streamSize - 6) / 3. The
+ polyphony of a stream appears to be 1; in other words, only
+ one note at a time can be playing in each stream. The next
+ event is not executed until the current note (or rest) is
+ finished playing; therefore, note duration also serves as the
+ time delta between events.
+
+ FOR EACH EVENTS
+ BE 2 bytes Note duration
+ 1 byte Note number to play (0 = rest/silent)
+
+ Oh, and quick speculation -- Stream 1 may be used for a
+ single-voice interleaved version of the music, where Stream 2-
+ 5 represent a version of the music in up to 4-voice
+ polyphony, one voice per stream. I postulate thus because
+ the first stream of the Mac Loom theme music contains
+ interleaved voices, whereas the second stream seemed to
+ contain only the pizzicato bottom-end harp. Stream 5, in this
+ example, is empty, so if my speculation is correct, this
+ particular musical number supports 3-voice polyphony at
+ most. I must check out Streams 3 and 4 to see what they
+ contain.
+
+ ==========
+
+ The instruments appear to be identified by their resource IDs:
+
+ 1000 Dual Harp
+ 10895 harp1
+ 11445 strings1
+ 11548 silent
+ 13811 staff1
+ 15703 brass1
+ 16324 flute1
+ 25614 accordian 1
+ 28110 f horn1
+ 29042 bassoon1
+*/
+
+#include "common/macresman.h"
+#include "common/translation.h"
+#include "engines/engine.h"
+#include "gui/message.h"
+#include "scumm/player_v3m.h"
+#include "scumm/scumm.h"
+
+#define RES_SND MKTAG('s', 'n', 'd', ' ')
+
+namespace Scumm {
+
+Player_V3M::Player_V3M(ScummEngine *scumm, Audio::Mixer *mixer)
+ : _vm(scumm),
+ _mixer(mixer),
+ _sampleRate(_mixer->getOutputRate()),
+ _soundPlaying(-1) {
+
+ assert(scumm);
+ assert(mixer);
+ assert(_vm->_game.id == GID_LOOM);
+
+ int i;
+
+ for (i = 0; i < 5; i++) {
+ _channel[i]._looped = false;
+ _channel[i]._length = 0;
+ _channel[i]._data = NULL;
+ _channel[i]._pos = 0;
+ _channel[i]._pitchModifier = 0;
+ _channel[i]._velocity = 0;
+ _channel[i]._remaining = 0;
+ _channel[i]._notesLeft = false;
+ _channel[i]._instrument._data = NULL;
+ _channel[i]._instrument._size = 0;
+ _channel[i]._instrument._rate = 0;
+ _channel[i]._instrument._loopStart = 0;
+ _channel[i]._instrument._loopEnd = 0;
+ _channel[i]._instrument._baseFreq = 0;
+ _channel[i]._instrument._pos = 0;
+ _channel[i]._instrument._subPos = 0;
+ }
+
+ _pitchTable[116] = 1664510;
+ _pitchTable[117] = 1763487;
+ _pitchTable[118] = 1868350;
+ _pitchTable[119] = 1979447;
+ _pitchTable[120] = 2097152;
+ _pitchTable[121] = 2221855;
+ _pitchTable[122] = 2353973;
+ _pitchTable[123] = 2493948;
+ _pitchTable[124] = 2642246;
+ _pitchTable[125] = 2799362;
+ _pitchTable[126] = 2965820;
+ _pitchTable[127] = 3142177;
+ for (i = 115; i >= 0; --i) {
+ _pitchTable[i] = _pitchTable[i + 12] / 2;
+ }
+
+ setMusicVolume(255);
+
+ Common::MacResManager resource;
+ // \252 is a trademark glyph. I don't think we should assume that it
+ // will be preserved when copying from the Mac disk.
+ if (!resource.exists("Loom\252") && !resource.exists("Loom")) {
+ GUI::MessageDialog dialog(_(
+ "Could not find the 'Loom' Macintosh executable to read the\n"
+ "instruments from. Music will be disabled."), _("OK"));
+ dialog.runModal();
+ return;
+ }
+
+ _mixer->playStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
+}
+
+Player_V3M::~Player_V3M() {
+ Common::StackLock lock(_mutex);
+ _mixer->stopHandle(_soundHandle);
+ stopAllSounds_Internal();
+}
+
+void Player_V3M::setMusicVolume(int vol) {
+ debug(5, "Player_V3M::setMusicVolume(%d)", vol);
+}
+
+void Player_V3M::stopAllSounds_Internal() {
+ _soundPlaying = -1;
+ for (int i = 0; i < 3; i++) {
+ // The channel data is managed by the resource manager, so
+ // don't delete that.
+ delete[] _channel[i]._instrument._data;
+ _channel[i]._instrument._data = NULL;
+
+ _channel[i]._remaining = 0;
+ _channel[i]._notesLeft = false;
+ }
+}
+
+void Player_V3M::stopAllSounds() {
+ Common::StackLock lock(_mutex);
+ debug(5, "Player_V3M::stopAllSounds()");
+ stopAllSounds_Internal();
+}
+
+void Player_V3M::stopSound(int nr) {
+ Common::StackLock lock(_mutex);
+ debug(5, "Player_V3M::stopSound(%d)", nr);
+
+ if (nr == _soundPlaying) {
+ stopAllSounds();
+ }
+}
+
+void Player_V3M::startSound(int nr) {
+ Common::StackLock lock(_mutex);
+ debug(5, "Player_V3M::startSound(%d)", nr);
+
+ Common::MacResManager resource;
+ if (!resource.open("Loom\252") && !resource.open("Loom")) {
+ return;
+ }
+
+ const byte *ptr = _vm->getResourceAddress(rtSound, nr);
+ assert(ptr);
+
+ const byte *src = ptr;
+ uint i;
+
+ assert(src[4] == 's' && src[5] == 'o');
+ for (i = 0; i < 5; i++) {
+ int instrument = READ_BE_UINT16(src + 20 + 2 * i);
+ int offset = READ_BE_UINT16(src + 30 + 2 * i);
+ _channel[i]._looped = false;
+ _channel[i]._length = READ_BE_UINT16(src + offset + 4) * 3;
+ _channel[i]._data = src + offset + 6;
+ _channel[i]._pos = 0;
+ _channel[i]._pitchModifier = 0;
+ _channel[i]._velocity = 0;
+ _channel[i]._remaining = 0;
+ _channel[i]._notesLeft = true;
+
+ Common::SeekableReadStream *stream = resource.getResource(RES_SND, instrument);
+ if (_channel[i].loadInstrument(stream)) {
+ debug(6, "Player_V3M::startSound: Channel %d - Loaded Instrument %d (%s)", i, instrument, resource.getResName(RES_SND, instrument).c_str());
+ } else {
+ resource.close();
+ return;
+ }
+ }
+
+ resource.close();
+ _soundPlaying = nr;
+}
+
+bool Player_V3M::Channel::loadInstrument(Common::SeekableReadStream *stream) {
+ // Load the sound
+ uint16 soundType = stream->readUint16BE();
+ if (soundType != 1) {
+ warning("Player_V3M::loadInstrument: Unsupported sound type %d", soundType);
+ return false;
+ }
+ uint16 typeCount = stream->readUint16BE();
+ if (typeCount != 1) {
+ warning("Player_V3M::loadInstrument: Unsupported data type count %d", typeCount);
+ return false;
+ }
+ uint16 dataType = stream->readUint16BE();
+ if (dataType != 5) {
+ warning("Player_V3M::loadInstrument: Unsupported data type %d", dataType);
+ return false;
+ }
+
+ stream->readUint32BE(); // initialization option
+
+ uint16 cmdCount = stream->readUint16BE();
+ if (cmdCount != 1) {
+ warning("Player_V3M::loadInstrument: Unsupported command count %d", cmdCount);
+ return false;
+ }
+ uint16 command = stream->readUint16BE();
+ if (command != 0x8050 && command != 0x8051) {
+ warning("Player_V3M::loadInstrument: Unsupported command 0x%04X", command);
+ return false;
+ }
+
+ stream->readUint16BE(); // 0
+ uint32 soundHeaderOffset = stream->readUint32BE();
+
+ stream->seek(soundHeaderOffset);
+
+ uint32 soundDataOffset = stream->readUint32BE();
+ uint32 size = stream->readUint32BE();
+ uint32 rate = stream->readUint32BE() >> 16;
+ uint32 loopStart = stream->readUint32BE();
+ uint32 loopEnd = stream->readUint32BE();
+ byte encoding = stream->readByte();
+ byte baseFreq = stream->readByte();
+
+ if (encoding != 0) {
+ warning("Player_V3M::loadInstrument: Unsupported encoding %d", encoding);
+ return false;
+ }
+
+ stream->skip(soundDataOffset);
+
+ byte *data = new byte[size];
+ stream->read(data, size);
+
+ _instrument._data = data;
+ _instrument._size = size;
+ _instrument._rate = rate;
+ _instrument._loopStart = loopStart;
+ _instrument._loopEnd = loopEnd;
+ _instrument._baseFreq = baseFreq;
+
+ return true;
+}
+
+int Player_V3M::getMusicTimer() {
+ return 0;
+}
+
+int Player_V3M::getSoundStatus(int nr) const {
+ return _soundPlaying == nr;
+}
+
+int Player_V3M::readBuffer(int16 *data, const int numSamples) {
+ Common::StackLock lock(_mutex);
+
+ memset(data, 0, numSamples * 2);
+ if (_soundPlaying == -1) {
+ return numSamples;
+ }
+
+ bool notesLeft = false;
+
+ // Channel 0 seems to be what was played on low-end macs, that couldn't
+ // handle multi-channel music and play the game at the same time. I'm
+ // not sure if stream 4 is ever used, but let's use it just in case.
+
+ for (int i = 1; i < 5; i++) {
+ uint samplesLeft = numSamples;
+ int16 *ptr = data;
+
+ while (samplesLeft > 0) {
+ int generated;
+ if (_channel[i]._remaining == 0) {
+ uint16 duration;
+ byte note, velocity;
+ if (_channel[i].getNextNote(duration, note, velocity)) {
+ if (note > 0) {
+ const int pitchIdx = note + 60 - _channel[i]._instrument._baseFreq;
+ assert(pitchIdx >= 0);
+ // I don't want to use floating-point arithmetics here,
+ // but I ran into overflow problems with the church
+ // music. It's only once per note, so it should be ok.
+ double mult = (double)(_channel[i]._instrument._rate) / (double)_sampleRate;
+ _channel[i]._pitchModifier = mult * _pitchTable[pitchIdx];
+ _channel[i]._velocity = velocity;
+ } else {
+ _channel[i]._pitchModifier = 0;
+ _channel[i]._velocity = 0;
+ }
+
+ // The correct formula should be:
+ //
+ // (duration * 473 * _sampleRate) / (4 * 480 * 480)
+ //
+ // But that's likely to cause integer overflow, so
+ // we do it in two steps and hope that the rounding
+ // error won't be noticeable.
+ //
+ // The original code is a bit unclear on if it should
+ // be 473 or 437, but since the comments indicated
+ // 473 I'm assuming 437 was a typo.
+ _channel[i]._remaining = (duration * _sampleRate) / (4 * 480);
+ _channel[i]._remaining = (_channel[i]._remaining * 473) / 480;
+ } else {
+ _channel[i]._pitchModifier = 0;
+ _channel[i]._velocity = 0;
+ _channel[i]._remaining = samplesLeft;
+ }
+ }
+ generated = MIN(_channel[i]._remaining, samplesLeft);
+ if (_channel[i]._velocity != 0) {
+ _channel[i]._instrument.generateSamples(ptr, _channel[i]._pitchModifier, _channel[i]._velocity, generated);
+ }
+ ptr += generated;
+ samplesLeft -= generated;
+ _channel[i]._remaining -= generated;
+ }
+
+ if (_channel[i]._notesLeft) {
+ notesLeft = true;
+ }
+ }
+
+ if (!notesLeft) {
+ stopAllSounds_Internal();
+ }
+
+ return numSamples;
+}
+
+bool Player_V3M::Channel::getNextNote(uint16 &duration, byte &note, byte &velocity) {
+ _instrument.newNote();
+ if (_pos >= _length) {
+ if (!_looped) {
+ _notesLeft = false;
+ return false;
+ }
+ _pos = 0;
+ }
+ duration = READ_BE_UINT16(&_data[_pos]);
+ note = _data[_pos + 2];
+ velocity = 127;
+ _pos += 3;
+ return true;
+}
+
+void Player_V3M::Instrument::generateSamples(int16 *data, int pitchModifier, int volume, int numSamples) {
+ int samplesLeft = numSamples;
+ while (samplesLeft) {
+ _subPos += pitchModifier;
+ while (_subPos >= 0x10000) {
+ _subPos -= 0x10000;
+ _pos++;
+ if (_pos >= _loopEnd) {
+ _pos = _loopStart;
+ }
+ }
+
+ int sample = *data + ((_data[_pos] - 129) * 128 * volume) / 255;
+ if (sample > 32767) {
+ sample = 32767;
+ } else if (sample < -32768) {
+ sample = -32768;
+ }
+
+ *data++ = sample; // (_data[_pos] * 127) / 100;
+ samplesLeft--;
+ }
+}
+
+} // End of namespace Scumm
diff --git a/engines/scumm/player_v3m.h b/engines/scumm/player_v3m.h
new file mode 100644
index 0000000000..3465621ca3
--- /dev/null
+++ b/engines/scumm/player_v3m.h
@@ -0,0 +1,113 @@
+/* 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_PLAYER_V3M_H
+#define SCUMM_PLAYER_V3M_H
+
+#include "common/scummsys.h"
+#include "common/util.h"
+#include "common/mutex.h"
+#include "scumm/music.h"
+#include "audio/audiostream.h"
+#include "audio/mixer.h"
+
+class Mixer;
+
+namespace Scumm {
+
+class ScummEngine;
+
+/**
+ * Scumm V3 Macintosh music driver.
+ */
+ class Player_V3M : public Audio::AudioStream, public MusicEngine {
+public:
+ Player_V3M(ScummEngine *scumm, Audio::Mixer *mixer);
+ virtual ~Player_V3M();
+
+ // MusicEngine API
+ virtual void setMusicVolume(int vol);
+ virtual void startSound(int sound);
+ virtual void stopSound(int sound);
+ virtual void stopAllSounds();
+ virtual int getMusicTimer();
+ virtual int getSoundStatus(int sound) const;
+
+ // AudioStream API
+ virtual int readBuffer(int16 *buffer, const int numSamples);
+ virtual bool isStereo() const { return false; }
+ virtual bool endOfData() const { return false; }
+ virtual int getRate() const { return _sampleRate; }
+
+private:
+ ScummEngine *const _vm;
+ Common::Mutex _mutex;
+ Audio::Mixer *const _mixer;
+ Audio::SoundHandle _soundHandle;
+ const uint32 _sampleRate;
+ int _soundPlaying;
+
+ void stopAllSounds_Internal();
+
+ struct Instrument {
+ byte *_data;
+ uint32 _size;
+ uint32 _rate;
+ uint32 _loopStart;
+ uint32 _loopEnd;
+ byte _baseFreq;
+
+ uint _pos;
+ uint _subPos;
+
+ void newNote() {
+ _pos = 0;
+ _subPos = 0;
+ }
+
+ void generateSamples(int16 *data, int pitchModifier, int volume, int numSamples);
+ };
+
+ struct Channel {
+ Instrument _instrument;
+ bool _looped;
+ uint32 _length;
+ const byte *_data;
+
+ uint _pos;
+ int _pitchModifier;
+ byte _velocity;
+ uint32 _remaining;
+
+ bool _notesLeft;
+
+ bool loadInstrument(Common::SeekableReadStream *stream);
+ bool getNextNote(uint16 &duration, byte &value, byte &velocity);
+ };
+
+ Channel _channel[5];
+ int _pitchTable[128];
+};
+
+} // End of namespace Scumm
+
+#endif
diff --git a/engines/scumm/scumm.cpp b/engines/scumm/scumm.cpp
index 67ca071a76..4ca4df44ab 100644
--- a/engines/scumm/scumm.cpp
+++ b/engines/scumm/scumm.cpp
@@ -61,6 +61,7 @@
#include "scumm/player_v2cms.h"
#include "scumm/player_v2a.h"
#include "scumm/player_v3a.h"
+#include "scumm/player_v3m.h"
#include "scumm/player_v4a.h"
#include "scumm/player_v5m.h"
#include "scumm/resource.h"
@@ -1820,6 +1821,8 @@ void ScummEngine::setupMusic(int midi) {
#endif
} else if (_game.platform == Common::kPlatformAmiga && _game.version <= 4) {
_musicEngine = new Player_V4A(this, _mixer);
+ } else if (_game.platform == Common::kPlatformMacintosh && _game.id == GID_LOOM) {
+ _musicEngine = new Player_V3M(this, _mixer);
} else if (_game.platform == Common::kPlatformMacintosh && _game.id == GID_MONKEY) {
_musicEngine = new Player_V5M(this, _mixer);
} else if (_game.id == GID_MANIAC && _game.version == 1) {
diff --git a/engines/scumm/sound.cpp b/engines/scumm/sound.cpp
index 57345126d3..d6de1cddd5 100644
--- a/engines/scumm/sound.cpp
+++ b/engines/scumm/sound.cpp
@@ -348,26 +348,9 @@ void Sound::playSound(int soundID) {
}
else if ((_vm->_game.id == GID_LOOM) && (_vm->_game.platform == Common::kPlatformMacintosh)) {
// Mac version of Loom uses yet another sound format
- /*
- playSound #9 (room 70)
- 000000: 55 00 00 45 73 6f 00 64 01 00 00 00 00 00 00 00 |U..Eso.d........|
- 000010: 00 05 00 8e 2a 8f 2d 1c 2a 8f 2a 8f 2d 1c 00 28 |....*.-.*.*.-..(|
- 000020: 00 31 00 3a 00 43 00 4c 00 01 00 00 00 01 00 64 |.1.:.C.L.......d|
- 000030: 5a 00 01 00 00 00 01 00 64 00 00 01 00 00 00 01 |Z.......d.......|
- 000040: 00 64 5a 00 01 00 00 00 01 00 64 5a 00 01 00 00 |.dZ.......dZ....|
- 000050: 00 01 00 64 00 00 00 00 00 00 00 07 00 00 00 64 |...d...........d|
- 000060: 64 00 00 4e 73 6f 00 64 01 00 00 00 00 00 00 00 |d..Nso.d........|
- 000070: 00 05 00 89 3d 57 2d 1c 3d 57 3d 57 2d 1c 00 28 |....=W-.=W=W-..(|
- playSound #16 (room 69)
- 000000: dc 00 00 a5 73 6f 00 64 01 00 00 00 00 00 00 00 |....so.d........|
- 000010: 00 05 00 00 2a 8f 03 e8 03 e8 03 e8 03 e8 00 28 |....*..........(|
- 000020: 00 79 00 7f 00 85 00 d6 00 01 00 00 00 19 01 18 |.y..............|
- 000030: 2f 00 18 00 01 18 32 00 18 00 01 18 36 00 18 00 |/.....2.....6...|
- 000040: 01 18 3b 00 18 00 01 18 3e 00 18 00 01 18 42 00 |..;.....>.....B.|
- 000050: 18 00 01 18 47 00 18 00 01 18 4a 00 18 00 01 18 |....G.....J.....|
- 000060: 4e 00 10 00 01 18 53 00 10 00 01 18 56 00 10 00 |N.....S.....V...|
- 000070: 01 18 5a 00 10 00 02 28 5f 00 01 00 00 00 00 00 |..Z....(_.......|
- */
+ if (_vm->_musicEngine) {
+ _vm->_musicEngine->startSound(soundID);
+ }
}
else if ((_vm->_game.platform == Common::kPlatformMacintosh) && (_vm->_game.id == GID_INDY3) && READ_BE_UINT16(ptr + 8) == 0x1C) {
// Sound format as used in Indy3 EGA Mac.