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Diffstat (limited to 'engines/sci/sfx/softseq/adlib.cpp')
| -rw-r--r-- | engines/sci/sfx/softseq/adlib.cpp | 827 |
1 files changed, 0 insertions, 827 deletions
diff --git a/engines/sci/sfx/softseq/adlib.cpp b/engines/sci/sfx/softseq/adlib.cpp deleted file mode 100644 index 11802917a2..0000000000 --- a/engines/sci/sfx/softseq/adlib.cpp +++ /dev/null @@ -1,827 +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. - * - * $URL$ - * $Id$ - * - */ - -#include "sci/sci.h" - -#include "sound/fmopl.h" -#include "sound/softsynth/emumidi.h" - -#include "sci/resource.h" -#include "sci/sfx/softseq/mididriver.h" - -namespace Sci { - -#ifdef __DC__ -#define STEREO false -#else -#define STEREO true -#endif - -// FIXME: We don't seem to be sending the polyphony init data, so disable this for now -#define ADLIB_DISABLE_VOICE_MAPPING - -class MidiDriver_Adlib : public MidiDriver_Emulated { -public: - enum { - kVoices = 9, - kRhythmKeys = 62 - }; - - MidiDriver_Adlib(Audio::Mixer *mixer) : MidiDriver_Emulated(mixer), _playSwitch(true), _masterVolume(15), _rhythmKeyMap(0), _opl(0) { } - virtual ~MidiDriver_Adlib() { } - - // MidiDriver - int open(bool isSCI0); - void close(); - void send(uint32 b); - MidiChannel *allocateChannel() { return NULL; } - MidiChannel *getPercussionChannel() { return NULL; } - - // AudioStream - bool isStereo() const { return _stereo; } - int getRate() const { return _mixer->getOutputRate(); } - - // MidiDriver_Emulated - void generateSamples(int16 *buf, int len); - - void setVolume(byte volume); - void playSwitch(bool play); - bool loadResource(const byte *data, uint size); - virtual uint32 property(int prop, uint32 param); - -private: - enum ChannelID { - kLeftChannel = 1, - kRightChannel = 2 - }; - - struct AdlibOperator { - bool amplitudeMod; - bool vibrato; - bool envelopeType; - bool kbScaleRate; - byte frequencyMult; // (0-15) - byte kbScaleLevel; // (0-3) - byte totalLevel; // (0-63, 0=max, 63=min) - byte attackRate; // (0-15) - byte decayRate; // (0-15) - byte sustainLevel; // (0-15) - byte releaseRate; // (0-15) - byte waveForm; // (0-3) - }; - - struct AdlibModulator { - byte feedback; // (0-7) - bool algorithm; - }; - - struct AdlibPatch { - AdlibOperator op[2]; - AdlibModulator mod; - }; - - struct Channel { - uint8 patch; // Patch setting - uint8 volume; // Channel volume (0-63) - uint8 pan; // Pan setting (0-127, 64 is center) - uint8 holdPedal; // Hold pedal setting (0 to 63 is off, 127 to 64 is on) - uint8 extraVoices; // The number of additional voices this channel optimally needs - uint16 pitchWheel; // Pitch wheel setting (0-16383, 8192 is center) - uint8 lastVoice; // Last voice used for this MIDI channel - bool enableVelocity; // Enable velocity control (SCI0) - - Channel() : patch(0), volume(63), pan(64), holdPedal(0), extraVoices(0), - pitchWheel(8192), lastVoice(0), enableVelocity(false) { } - }; - - struct AdlibVoice { - int8 channel; // MIDI channel that this voice is assigned to or -1 - int8 note; // Currently playing MIDI note or -1 - int patch; // Currently playing patch or -1 - uint8 velocity; // Note velocity - bool isSustained; // Flag indicating a note that is being sustained by the hold pedal - uint16 age; // Age of the current note - - AdlibVoice() : channel(-1), note(-1), patch(-1), velocity(0), isSustained(false), age(0) { } - }; - - bool _stereo; - bool _isSCI0; - OPL::OPL *_opl; - bool _playSwitch; - int _masterVolume; - Channel _channels[MIDI_CHANNELS]; - AdlibVoice _voices[kVoices]; - byte *_rhythmKeyMap; - Common::Array<AdlibPatch> _patches; - - void loadInstrument(const byte *ins); - void voiceOn(int voice, int note, int velocity); - void voiceOff(int voice); - void setPatch(int voice, int patch); - void setNote(int voice, int note, bool key); - void setVelocity(int voice); - void setOperator(int oper, AdlibOperator &op); - void setRegister(int reg, int value, int channels = kLeftChannel | kRightChannel); - void renewNotes(int channel, bool key); - void noteOn(int channel, int note, int velocity); - void noteOff(int channel, int note); - int findVoice(int channel); - void voiceMapping(int channel, int voices); - void assignVoices(int channel, int voices); - void releaseVoices(int channel, int voices); - void donateVoices(); - int findVoiceBasic(int channel); - void setVelocityReg(int regOffset, int velocity, int kbScaleLevel, int pan); - int calcVelocity(int voice, int op); -}; - -class MidiPlayer_Adlib : public MidiPlayer { -public: - MidiPlayer_Adlib() { _driver = new MidiDriver_Adlib(g_system->getMixer()); } - int open(ResourceManager *resMan); - int getPlayMask(SciVersion soundVersion); - int getPolyphony() const { return MidiDriver_Adlib::kVoices; } - bool hasRhythmChannel() const { return false; } - void setVolume(byte volume) { static_cast<MidiDriver_Adlib *>(_driver)->setVolume(volume); } - void playSwitch(bool play) { static_cast<MidiDriver_Adlib *>(_driver)->playSwitch(play); } - void loadInstrument(int idx, byte *data); -}; - -static const byte registerOffset[MidiDriver_Adlib::kVoices] = { - 0x00, 0x01, 0x02, 0x08, 0x09, 0x0A, 0x10, 0x11, 0x12 -}; - -static const byte velocityMap1[64] = { - 0x00, 0x0c, 0x0d, 0x0e, 0x0f, 0x11, 0x12, 0x13, - 0x14, 0x16, 0x17, 0x18, 0x1a, 0x1b, 0x1c, 0x1d, - 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, - 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2d, 0x2d, 0x2e, - 0x2f, 0x30, 0x31, 0x32, 0x32, 0x33, 0x34, 0x34, - 0x35, 0x36, 0x36, 0x37, 0x38, 0x38, 0x39, 0x3a, - 0x3b, 0x3b, 0x3b, 0x3c, 0x3c, 0x3c, 0x3d, 0x3d, - 0x3d, 0x3e, 0x3e, 0x3e, 0x3e, 0x3f, 0x3f, 0x3f -}; - -static const byte velocityMap2[64] = { - 0x00, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, - 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x21, - 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, - 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x2f, 0x30, - 0x31, 0x32, 0x32, 0x33, 0x34, 0x34, 0x35, 0x36, - 0x36, 0x37, 0x38, 0x38, 0x39, 0x39, 0x3a, 0x3a, - 0x3b, 0x3b, 0x3b, 0x3c, 0x3c, 0x3c, 0x3d, 0x3d, - 0x3d, 0x3e, 0x3e, 0x3e, 0x3e, 0x3f, 0x3f, 0x3f -}; - -static const int ym3812_note[13] = { - 0x157, 0x16b, 0x181, 0x198, 0x1b0, 0x1ca, - 0x1e5, 0x202, 0x220, 0x241, 0x263, 0x287, - 0x2ae -}; - -int MidiDriver_Adlib::open(bool isSCI0) { - int rate = _mixer->getOutputRate(); - - _stereo = STEREO; - - debug(3, "ADLIB: Starting driver in %s mode", (isSCI0 ? "SCI0" : "SCI1")); - _isSCI0 = isSCI0; - - _opl = OPL::Config::create(isStereo() ? OPL::Config::kDualOpl2 : OPL::Config::kOpl2); - - // Try falling back to mono, thus plain OPL2 emualtor, when no Dual OPL2 is available. - if (!_opl && _stereo) { - _stereo = false; - _opl = OPL::Config::create(OPL::Config::kOpl2); - } - - if (!_opl) - return -1; - - _opl->init(rate); - - setRegister(0xBD, 0); - setRegister(0x08, 0); - setRegister(0x01, 0x20); - - MidiDriver_Emulated::open(); - - _mixer->playInputStream(Audio::Mixer::kMusicSoundType, &_mixerSoundHandle, this, -1, _mixer->kMaxChannelVolume, 0, false); - - return 0; -} - -void MidiDriver_Adlib::close() { - _mixer->stopHandle(_mixerSoundHandle); - - delete _opl; - delete[] _rhythmKeyMap; -} - -void MidiDriver_Adlib::setVolume(byte volume) { - _masterVolume = volume; - renewNotes(-1, true); -} - -// MIDI messages can be found at http://www.midi.org/techspecs/midimessages.php -void MidiDriver_Adlib::send(uint32 b) { - byte command = b & 0xf0; - byte channel = b & 0xf; - byte op1 = (b >> 8) & 0xff; - byte op2 = (b >> 16) & 0xff; - - switch (command) { - case 0x80: - noteOff(channel, op1); - break; - case 0x90: - noteOn(channel, op1, op2); - break; - case 0xe0: - _channels[channel].pitchWheel = (op1 & 0x7f) | ((op2 & 0x7f) << 7); - renewNotes(channel, true); - break; - case 0xb0: - switch (op1) { - case 0x07: - _channels[channel].volume = op2 >> 1; - renewNotes(channel, true); - break; - case 0x0a: - _channels[channel].pan = op2; - renewNotes(channel, true); - break; - case 0x40: - _channels[channel].holdPedal = op2; - if (op2 == 0) { - for (int i = 0; i < kVoices; i++) { - if ((_voices[i].channel == channel) && _voices[i].isSustained) - voiceOff(i); - } - } - break; - case 0x4b: -#ifndef ADLIB_DISABLE_VOICE_MAPPING - voiceMapping(channel, op2); -#endif - break; - case 0x4e: - // FIXME: this flag should be set to 0 when a new song is started - debug(3, "ADLIB: Setting velocity control flag for channel %i to %i", channel, op2); - _channels[channel].enableVelocity = op2; - break; - case SCI_MIDI_CHANNEL_NOTES_OFF: - for (int i = 0; i < kVoices; i++) - if ((_voices[i].channel == channel) && (_voices[i].note != -1)) - voiceOff(i); - break; - default: - //warning("ADLIB: ignoring MIDI command %02x %02x %02x", command | channel, op1, op2); - break; - } - break; - case 0xc0: - _channels[channel].patch = op1; - break; - // The original adlib driver from sierra ignores aftertouch completely, so should we - case 0xa0: // Polyphonic key pressure (aftertouch) - case 0xd0: // Channel pressure (aftertouch) - break; - case 0xf0: // SysEx, ignore it - break; - default: - warning("ADLIB: Unknown event %02x", command); - } -} - -void MidiDriver_Adlib::generateSamples(int16 *data, int len) { - if (isStereo()) - len <<= 1; - _opl->readBuffer(data, len); - - // Increase the age of the notes - for (int i = 0; i < kVoices; i++) { - if (_voices[i].note != -1) - _voices[i].age++; - } -} - -void MidiDriver_Adlib::loadInstrument(const byte *ins) { - AdlibPatch patch; - - // Set data for the operators - for (int i = 0; i < 2; i++) { - const byte *op = ins + i * 13; - patch.op[i].kbScaleLevel = op[0] & 0x3; - patch.op[i].frequencyMult = op[1] & 0xf; - patch.op[i].attackRate = op[3] & 0xf; - patch.op[i].sustainLevel = op[4] & 0xf; - patch.op[i].envelopeType = op[5]; - patch.op[i].decayRate = op[6] & 0xf; - patch.op[i].releaseRate = op[7] & 0xf; - patch.op[i].totalLevel = op[8] & 0x3f; - patch.op[i].amplitudeMod = op[9]; - patch.op[i].vibrato = op[10]; - patch.op[i].kbScaleRate = op[11]; - } - patch.op[0].waveForm = ins[26] & 0x3; - patch.op[1].waveForm = ins[27] & 0x3; - - // Set data for the modulator - patch.mod.feedback = ins[2] & 0x7; - patch.mod.algorithm = !ins[12]; // Flag is inverted - - _patches.push_back(patch); -} - -void MidiDriver_Adlib::voiceMapping(int channel, int voices) { - int curVoices = 0; - - for (int i = 0; i < kVoices; i++) - if (_voices[i].channel == channel) - curVoices++; - - curVoices += _channels[channel].extraVoices; - - if (curVoices < voices) { - debug(3, "ADLIB: assigning %i additional voices to channel %i", voices - curVoices, channel); - assignVoices(channel, voices - curVoices); - } else if (curVoices > voices) { - debug(3, "ADLIB: releasing %i voices from channel %i", curVoices - voices, channel); - releaseVoices(channel, curVoices - voices); - donateVoices(); - } -} - -void MidiDriver_Adlib::assignVoices(int channel, int voices) { - assert(voices > 0); - - for (int i = 0; i < kVoices; i++) - if (_voices[i].channel == -1) { - _voices[i].channel = channel; - if (--voices == 0) - return; - } - - _channels[channel].extraVoices += voices; -} - -void MidiDriver_Adlib::releaseVoices(int channel, int voices) { - if (_channels[channel].extraVoices >= voices) { - _channels[channel].extraVoices -= voices; - return; - } - - voices -= _channels[channel].extraVoices; - _channels[channel].extraVoices = 0; - - for (int i = 0; i < kVoices; i++) { - if ((_voices[i].channel == channel) && (_voices[i].note == -1)) { - _voices[i].channel = -1; - if (--voices == 0) - return; - } - } - - for (int i = 0; i < kVoices; i++) { - if (_voices[i].channel == channel) { - voiceOff(i); - _voices[i].channel = -1; - if (--voices == 0) - return; - } - } -} - -void MidiDriver_Adlib::donateVoices() { - int freeVoices = 0; - - for (int i = 0; i < kVoices; i++) - if (_voices[i].channel == -1) - freeVoices++; - - if (freeVoices == 0) - return; - - for (int i = 0; i < MIDI_CHANNELS; i++) { - if (_channels[i].extraVoices >= freeVoices) { - assignVoices(i, freeVoices); - _channels[i].extraVoices -= freeVoices; - return; - } else if (_channels[i].extraVoices > 0) { - assignVoices(i, _channels[i].extraVoices); - freeVoices -= _channels[i].extraVoices; - _channels[i].extraVoices = 0; - } - } -} - -void MidiDriver_Adlib::renewNotes(int channel, bool key) { - for (int i = 0; i < kVoices; i++) { - // Update all notes playing this channel - if ((channel == -1) || (_voices[i].channel == channel)) { - if (_voices[i].note != -1) - setNote(i, _voices[i].note, key); - } - } -} - -void MidiDriver_Adlib::noteOn(int channel, int note, int velocity) { - if (velocity == 0) - return noteOff(channel, note); - - velocity >>= 1; - - // Check for playable notes - if ((note < 12) || (note > 107)) - return; - - for (int i = 0; i < kVoices; i++) { - if ((_voices[i].channel == channel) && (_voices[i].note == note)) { - voiceOff(i); - voiceOn(i, note, velocity); - return; - } - } - -#ifdef ADLIB_DISABLE_VOICE_MAPPING - int voice = findVoiceBasic(channel); -#else - int voice = findVoice(channel); -#endif - - if (voice == -1) { - debug(3, "ADLIB: failed to find free voice assigned to channel %i", channel); - return; - } - - voiceOn(voice, note, velocity); -} - -// FIXME: Temporary, see comment at top of file regarding ADLIB_DISABLE_VOICE_MAPPING -int MidiDriver_Adlib::findVoiceBasic(int channel) { - int voice = -1; - int oldestVoice = -1; - int oldestAge = -1; - - // Try to find a voice assigned to this channel that is free (round-robin) - for (int i = 0; i < kVoices; i++) { - int v = (_channels[channel].lastVoice + i + 1) % kVoices; - - if (_voices[v].note == -1) { - voice = v; - break; - } - - // We also keep track of the oldest note in case the search fails - if (_voices[v].age > oldestAge) { - oldestAge = _voices[v].age; - oldestVoice = v; - } - } - - if (voice == -1) { - if (oldestVoice != -1) { - voiceOff(oldestVoice); - voice = oldestVoice; - } else { - return -1; - } - } - - _voices[voice].channel = channel; - _channels[channel].lastVoice = voice; - return voice; -} - -int MidiDriver_Adlib::findVoice(int channel) { - int voice = -1; - int oldestVoice = -1; - uint32 oldestAge = 0; - - // Try to find a voice assigned to this channel that is free (round-robin) - for (int i = 0; i < kVoices; i++) { - int v = (_channels[channel].lastVoice + i + 1) % kVoices; - - if (_voices[v].channel == channel) { - if (_voices[v].note == -1) { - voice = v; - break; - } - - // We also keep track of the oldest note in case the search fails - // Notes started in the current time slice will not be selected - if (_voices[v].age > oldestAge) { - oldestAge = _voices[v].age; - oldestVoice = v; - } - } - } - - if (voice == -1) { - if (oldestVoice != -1) { - voiceOff(oldestVoice); - voice = oldestVoice; - } else { - return -1; - } - } - - _channels[channel].lastVoice = voice; - return voice; -} - -void MidiDriver_Adlib::noteOff(int channel, int note) { - for (int i = 0; i < kVoices; i++) { - if ((_voices[i].channel == channel) && (_voices[i].note == note)) { - if (_channels[channel].holdPedal) - _voices[i].isSustained = true; - else - voiceOff(i); - return; - } - } -} - -void MidiDriver_Adlib::voiceOn(int voice, int note, int velocity) { - int channel = _voices[voice].channel; - int patch; - - _voices[voice].age = 0; - - if ((channel == 9) && _rhythmKeyMap) { - patch = CLIP(note, 27, 88) + 101; - } else { - patch = _channels[channel].patch; - } - - // Set patch if different from current patch - if ((patch != _voices[voice].patch) && _playSwitch) - setPatch(voice, patch); - - _voices[voice].velocity = velocity; - setNote(voice, note, true); -} - -void MidiDriver_Adlib::voiceOff(int voice) { - _voices[voice].isSustained = false; - setNote(voice, _voices[voice].note, 0); - _voices[voice].note = -1; - _voices[voice].age = 0; -} - -void MidiDriver_Adlib::setNote(int voice, int note, bool key) { - int channel = _voices[voice].channel; - int n, fre, oct; - float delta; - int bend = _channels[channel].pitchWheel; - - if ((channel == 9) && _rhythmKeyMap) { - note = _rhythmKeyMap[CLIP(note, 27, 88) - 27]; - } - - _voices[voice].note = note; - - delta = 0; - - n = note % 12; - - if (bend < 8192) - bend = 8192 - bend; - delta = (float)pow(2.0, (bend % 8192) / 8192.0); - - if (bend > 8192) - fre = (int)(ym3812_note[n] * delta); - else - fre = (int)(ym3812_note[n] / delta); - - oct = note / 12 - 1; - - if (oct < 0) - oct = 0; - - if (oct > 7) - oct = 7; - - setRegister(0xA0 + voice, fre & 0xff); - setRegister(0xB0 + voice, (key << 5) | (oct << 2) | (fre >> 8)); - - setVelocity(voice); -} - -void MidiDriver_Adlib::setVelocity(int voice) { - AdlibPatch &patch = _patches[_voices[voice].patch]; - int pan = _channels[_voices[voice].channel].pan; - setVelocityReg(registerOffset[voice] + 3, calcVelocity(voice, 1), patch.op[1].kbScaleLevel, pan); - - // In AM mode we need to set the level for both operators - if (_patches[_voices[voice].patch].mod.algorithm == 1) - setVelocityReg(registerOffset[voice], calcVelocity(voice, 0), patch.op[0].kbScaleLevel, pan); -} - -int MidiDriver_Adlib::calcVelocity(int voice, int op) { - if (_isSCI0) { - int velocity = _masterVolume; - - if (velocity > 0) - velocity += 3; - - if (velocity > 15) - velocity = 15; - - int insVelocity; - if (_channels[_voices[voice].channel].enableVelocity) - insVelocity = _voices[voice].velocity; - else - insVelocity = 63 - _patches[_voices[voice].patch].op[op].totalLevel; - - // Note: Later SCI0 has a static table that is close to this formula, but not exactly the same. - // Early SCI0 does (velocity * (insVelocity / 15)) - return velocity * insVelocity / 15; - } else { - AdlibOperator &oper = _patches[_voices[voice].patch].op[op]; - int velocity = _channels[_voices[voice].channel].volume + 1; - velocity = velocity * (velocityMap1[_voices[voice].velocity] + 1) / 64; - velocity = velocity * (_masterVolume + 1) / 16; - - if (--velocity < 0) - velocity = 0; - - return velocityMap2[velocity] * (63 - oper.totalLevel) / 63; - } -} - -void MidiDriver_Adlib::setVelocityReg(int regOffset, int velocity, int kbScaleLevel, int pan) { - if (!_playSwitch) - velocity = 0; - - if (isStereo()) { - int velLeft = velocity; - int velRight = velocity; - - if (pan > 0x40) - velLeft = velLeft * (0x7f - pan) / 0x3f; - else if (pan < 0x40) - velRight = velRight * pan / 0x40; - - setRegister(0x40 + regOffset, (kbScaleLevel << 6) | (63 - velLeft), kLeftChannel); - setRegister(0x40 + regOffset, (kbScaleLevel << 6) | (63 - velRight), kRightChannel); - } else { - setRegister(0x40 + regOffset, (kbScaleLevel << 6) | (63 - velocity)); - } -} - -void MidiDriver_Adlib::setPatch(int voice, int patch) { - if ((patch < 0) || ((uint)patch >= _patches.size())) { - warning("ADLIB: Invalid patch %i requested", patch); - patch = 0; - } - - _voices[voice].patch = patch; - AdlibModulator &mod = _patches[patch].mod; - - // Set the common settings for both operators - setOperator(registerOffset[voice], _patches[patch].op[0]); - setOperator(registerOffset[voice] + 3, _patches[patch].op[1]); - - // Set the additional settings for the modulator - byte algorithm = mod.algorithm ? 1 : 0; - setRegister(0xC0 + voice, (mod.feedback << 1) | algorithm); -} - -void MidiDriver_Adlib::setOperator(int reg, AdlibOperator &op) { - setRegister(0x40 + reg, (op.kbScaleLevel << 6) | op.totalLevel); - setRegister(0x60 + reg, (op.attackRate << 4) | op.decayRate); - setRegister(0x80 + reg, (op.sustainLevel << 4) | op.releaseRate); - setRegister(0x20 + reg, (op.amplitudeMod << 7) | (op.vibrato << 6) - | (op.envelopeType << 5) | (op.kbScaleRate << 4) | op.frequencyMult); - setRegister(0xE0 + reg, op.waveForm); -} - -void MidiDriver_Adlib::setRegister(int reg, int value, int channels) { - if (channels & kLeftChannel) { - _opl->write(0x220, reg); - _opl->write(0x221, value); - } - - if (isStereo()) { - if (channels & kRightChannel) { - _opl->write(0x222, reg); - _opl->write(0x223, value); - } - } -} - -void MidiDriver_Adlib::playSwitch(bool play) { - _playSwitch = play; - renewNotes(-1, play); -} - -bool MidiDriver_Adlib::loadResource(const byte *data, uint size) { - if ((size != 1344) && (size != 2690) && (size != 5382)) { - warning("ADLIB: Unsupported patch format (%i bytes)", size); - return false; - } - - for (int i = 0; i < 48; i++) - loadInstrument(data + (28 * i)); - - if (size == 2690) { - for (int i = 48; i < 96; i++) - loadInstrument(data + 2 + (28 * i)); - } else if (size == 5382) { - for (int i = 48; i < 190; i++) - loadInstrument(data + (28 * i)); - _rhythmKeyMap = new byte[kRhythmKeys]; - memcpy(_rhythmKeyMap, data + 5320, kRhythmKeys); - } - - return true; -} - -uint32 MidiDriver_Adlib::property(int prop, uint32 param) { - switch(prop) { - case MIDI_PROP_MASTER_VOLUME: - if (param != 0xffff) - _masterVolume = param; - return _masterVolume; - default: - break; - } - return 0; -} - - -int MidiPlayer_Adlib::open(ResourceManager *resMan) { - assert(resMan != NULL); - - // Load up the patch.003 file, parse out the instruments - Resource *res = resMan->findResource(ResourceId(kResourceTypePatch, 3), 0); - bool ok = false; - - if (res) { - ok = static_cast<MidiDriver_Adlib *>(_driver)->loadResource(res->data, res->size); - } else { - // Early SCI0 games have the sound bank embedded in the adlib driver - - Common::File f; - - if (f.open("ADL.DRV")) { - int size = f.size(); - const uint patchSize = 1344; - - if ((size == 5684) || (size == 5720) || (size == 5727)) { - byte *buf = new byte[patchSize]; - - if (f.seek(0x45a) && (f.read(buf, patchSize) == patchSize)) - ok = static_cast<MidiDriver_Adlib *>(_driver)->loadResource(buf, patchSize); - - delete[] buf; - } - } - } - - if (!ok) { - warning("ADLIB: Failed to load patch.003"); - return -1; - } - - return static_cast<MidiDriver_Adlib *>(_driver)->open(getSciVersion() <= SCI_VERSION_0_LATE); -} - -int MidiPlayer_Adlib::getPlayMask(SciVersion soundVersion) { - return (soundVersion == SCI_VERSION_0_EARLY) ? 0x01 : 0x04; -} - -MidiPlayer *MidiPlayer_Adlib_create() { - return new MidiPlayer_Adlib(); -} - -MidiDriver *MidiDriver_Adlib_create() { - return new MidiDriver_Adlib(g_system->getMixer()); -} - -} // End of namespace Sci |