mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 09:49:11 +00:00
842 lines
22 KiB
C++
842 lines
22 KiB
C++
/* 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.
|
|
*
|
|
*/
|
|
|
|
#include "scumm/player_v2cms.h"
|
|
#include "scumm/scumm.h"
|
|
#include "audio/mididrv.h"
|
|
#include "audio/mixer.h"
|
|
#include "audio/softsynth/cms.h"
|
|
|
|
namespace Scumm {
|
|
|
|
#define PROCESS_ATTACK 1
|
|
#define PROCESS_RELEASE 2
|
|
#define PROCESS_SUSTAIN 3
|
|
#define PROCESS_DECAY 4
|
|
#define PROCESS_VIBRATO 5
|
|
|
|
#define CMS_RATE 22050
|
|
|
|
static const byte freqTable[] = {
|
|
3, 10, 17, 24, 31, 38, 45, 51,
|
|
58, 65, 71, 77, 83, 90, 96, 102,
|
|
107, 113, 119, 125, 130, 136, 141, 146,
|
|
151, 157, 162, 167, 172, 177, 181, 186,
|
|
191, 195, 200, 204, 209, 213, 217, 221,
|
|
226, 230, 234, 238, 242, 246, 249, 253
|
|
};
|
|
|
|
/*static const byte amplTable[] = {
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 0 %
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 10 %
|
|
0x00, 0x00, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x10, // 20 %
|
|
0x10, 0x10, 0x20, 0x20, 0x20, 0x20, 0x20, 0x30,
|
|
0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x10, 0x20, // 30%
|
|
0x20, 0x20, 0x30, 0x30, 0x30, 0x30, 0x40, 0x40,
|
|
0x00, 0x00, 0x00, 0x10, 0x10, 0x20, 0x20, 0x20, // 40 %
|
|
0x30, 0x30, 0x40, 0x40, 0x40, 0x50, 0x50, 0x60,
|
|
0x00, 0x00, 0x10, 0x10, 0x20, 0x20, 0x30, 0x30, // 50%
|
|
0x40, 0x40, 0x50, 0x50, 0x60, 0x60, 0x70, 0x70,
|
|
0x00, 0x00, 0x10, 0x10, 0x20, 0x30, 0x30, 0x40, // 60 %
|
|
0x40, 0x50, 0x60, 0x60, 0x70, 0x70, 0x80, 0x90,
|
|
0x00, 0x00, 0x10, 0x20, 0x20, 0x30, 0x40, 0x40, // 70 %
|
|
0x50, 0x60, 0x70, 0x70, 0x80, 0x90, 0x90, 0xA0,
|
|
0x00, 0x00, 0x10, 0x20, 0x30, 0x40, 0x40, 0x50, // 80 %
|
|
0x60, 0x70, 0x80, 0x80, 0x90, 0xA0, 0xB0, 0xC0,
|
|
0x00, 0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, // 90 %
|
|
0x70, 0x80, 0x90, 0x90, 0xA0, 0xB0, 0xC0, 0xD0,
|
|
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, // 100 %
|
|
0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0
|
|
};*/
|
|
|
|
static const byte octaveTable[] = {
|
|
0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03,
|
|
0x00, 0x04, 0x00, 0x05, 0x00, 0x06, 0x00, 0x07,
|
|
0x00, 0x08, 0x00, 0x09, 0x00, 0x0A, 0x00, 0x0B,
|
|
0x01, 0x00, 0x01, 0x01, 0x01, 0x02, 0x01, 0x03,
|
|
0x01, 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x07,
|
|
0x01, 0x08, 0x01, 0x09, 0x01, 0x0A, 0x01, 0x0B,
|
|
0x02, 0x00, 0x02, 0x01, 0x02, 0x02, 0x02, 0x03,
|
|
0x02, 0x04, 0x02, 0x05, 0x02, 0x06, 0x02, 0x07,
|
|
0x02, 0x08, 0x02, 0x09, 0x02, 0x0A, 0x02, 0x0B,
|
|
0x03, 0x00, 0x03, 0x01, 0x03, 0x02, 0x03, 0x03,
|
|
0x03, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03, 0x07,
|
|
0x03, 0x08, 0x03, 0x09, 0x03, 0x0A, 0x03, 0x0B,
|
|
0x04, 0x00, 0x04, 0x01, 0x04, 0x02, 0x04, 0x03,
|
|
0x04, 0x04, 0x04, 0x05, 0x04, 0x06, 0x04, 0x07,
|
|
0x04, 0x08, 0x04, 0x09, 0x04, 0x0A, 0x04, 0x0B,
|
|
0x05, 0x00, 0x05, 0x01, 0x05, 0x02, 0x05, 0x03,
|
|
0x05, 0x04, 0x05, 0x05, 0x05, 0x06, 0x05, 0x07,
|
|
0x05, 0x08, 0x05, 0x09, 0x05, 0x0A, 0x05, 0x0B,
|
|
0x06, 0x00, 0x06, 0x01, 0x06, 0x02, 0x06, 0x03,
|
|
0x06, 0x04, 0x06, 0x05, 0x06, 0x06, 0x06, 0x07,
|
|
0x06, 0x08, 0x06, 0x09, 0x06, 0x0A, 0x06, 0x0B,
|
|
0x07, 0x00, 0x07, 0x01, 0x07, 0x02, 0x07, 0x03,
|
|
0x07, 0x04, 0x07, 0x05, 0x07, 0x06, 0x07, 0x07,
|
|
0x07, 0x08, 0x07, 0x09, 0x07, 0x0A, 0x07, 0x0B,
|
|
0x08, 0x00, 0x08, 0x01, 0x08, 0x02, 0x08, 0x03,
|
|
0x08, 0x04, 0x08, 0x05, 0x08, 0x06, 0x08, 0x07,
|
|
0x08, 0x08, 0x08, 0x09, 0x08, 0x0A, 0x08, 0x0B,
|
|
0x09, 0x00, 0x09, 0x01, 0x09, 0x02, 0x09, 0x03,
|
|
0x09, 0x04, 0x09, 0x05, 0x09, 0x06, 0x09, 0x07,
|
|
0x09, 0x08, 0x09, 0x09, 0x09, 0x0A, 0x09, 0x0B,
|
|
0x0A, 0x00, 0x0A, 0x01, 0x0A, 0x02, 0x0A, 0x03,
|
|
0x0A, 0x04, 0x0A, 0x05, 0x0A, 0x06, 0x0A, 0x07,
|
|
0x0A, 0x08, 0x0A, 0x09, 0x0A, 0x0A, 0x0A, 0x0B
|
|
};
|
|
|
|
static const byte attackRate[] = {
|
|
0, 2, 4, 7, 14, 26, 48, 82,
|
|
128, 144, 160, 176, 192, 208, 224, 255
|
|
};
|
|
|
|
static const byte decayRate[] = {
|
|
0, 1, 2, 3, 4, 6, 12, 24,
|
|
48, 96, 192, 215, 255, 255, 255, 255
|
|
};
|
|
|
|
static const byte sustainRate[] = {
|
|
255, 180, 128, 96, 80, 64, 56, 48,
|
|
42, 36, 32, 28, 24, 20, 16, 0
|
|
};
|
|
|
|
static const byte releaseRate[] = {
|
|
0, 1, 2, 4, 6, 9, 14, 22,
|
|
36, 56, 80, 100, 120, 140, 160, 255
|
|
};
|
|
|
|
static const byte volumeTable[] = {
|
|
0x00, 0x10, 0x10, 0x11, 0x11, 0x21, 0x22, 0x22,
|
|
0x33, 0x44, 0x55, 0x66, 0x88, 0xAA, 0xCC, 0xFF
|
|
};
|
|
|
|
Player_V2CMS::Player_V2CMS(ScummEngine *scumm, Audio::Mixer *mixer)
|
|
: Player_V2Base(scumm, mixer, true) {
|
|
int i;
|
|
|
|
setMusicVolume(255);
|
|
|
|
memset(_cmsVoicesBase, 0, sizeof(Voice)*16);
|
|
memset(_cmsVoices, 0, sizeof(Voice2)*8);
|
|
memset(_cmsChips, 0, sizeof(MusicChip)*2);
|
|
_midiDelay = _octaveMask = _looping = _tempo = 0;
|
|
_midiData = _midiSongBegin = 0;
|
|
_loadedMidiSong = 0;
|
|
memset(_midiChannel, 0, sizeof(Voice2*)*16);
|
|
memset(_midiChannelUse, 0, sizeof(byte)*16);
|
|
|
|
_cmsVoices[0].amplitudeOutput = &(_cmsChips[0].ampl[0]);
|
|
_cmsVoices[0].freqOutput = &(_cmsChips[0].freq[0]);
|
|
_cmsVoices[0].octaveOutput = &(_cmsChips[0].octave[0]);
|
|
_cmsVoices[1].amplitudeOutput = &(_cmsChips[0].ampl[1]);
|
|
_cmsVoices[1].freqOutput = &(_cmsChips[0].freq[1]);
|
|
_cmsVoices[1].octaveOutput = &(_cmsChips[0].octave[0]);
|
|
_cmsVoices[2].amplitudeOutput = &(_cmsChips[0].ampl[2]);
|
|
_cmsVoices[2].freqOutput = &(_cmsChips[0].freq[2]);
|
|
_cmsVoices[2].octaveOutput = &(_cmsChips[0].octave[1]);
|
|
_cmsVoices[3].amplitudeOutput = &(_cmsChips[0].ampl[3]);
|
|
_cmsVoices[3].freqOutput = &(_cmsChips[0].freq[3]);
|
|
_cmsVoices[3].octaveOutput = &(_cmsChips[0].octave[1]);
|
|
_cmsVoices[4].amplitudeOutput = &(_cmsChips[1].ampl[0]);
|
|
_cmsVoices[4].freqOutput = &(_cmsChips[1].freq[0]);
|
|
_cmsVoices[4].octaveOutput = &(_cmsChips[1].octave[0]);
|
|
_cmsVoices[5].amplitudeOutput = &(_cmsChips[1].ampl[1]);
|
|
_cmsVoices[5].freqOutput = &(_cmsChips[1].freq[1]);
|
|
_cmsVoices[5].octaveOutput = &(_cmsChips[1].octave[0]);
|
|
_cmsVoices[6].amplitudeOutput = &(_cmsChips[1].ampl[2]);
|
|
_cmsVoices[6].freqOutput = &(_cmsChips[1].freq[2]);
|
|
_cmsVoices[6].octaveOutput = &(_cmsChips[1].octave[1]);
|
|
_cmsVoices[7].amplitudeOutput = &(_cmsChips[1].ampl[3]);
|
|
_cmsVoices[7].freqOutput = &(_cmsChips[1].freq[3]);
|
|
_cmsVoices[7].octaveOutput = &(_cmsChips[1].octave[1]);
|
|
|
|
// inits the CMS Emulator like in the original
|
|
_cmsEmu = new CMSEmulator(_sampleRate);
|
|
static const byte cmsInitData[13*2] = {
|
|
0x1C, 0x02,
|
|
0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00,
|
|
0x14, 0x3F, 0x15, 0x00, 0x16, 0x00, 0x18, 0x00, 0x19, 0x00, 0x1C, 0x01
|
|
};
|
|
|
|
i = 0;
|
|
for (int cmsPort = 0x220; i < 2; cmsPort += 2, ++i) {
|
|
for (int off = 0; off < 13; ++off) {
|
|
_cmsEmu->portWrite(cmsPort+1, cmsInitData[off*2]);
|
|
_cmsEmu->portWrite(cmsPort, cmsInitData[off*2+1]);
|
|
}
|
|
}
|
|
|
|
_mixer->playStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
|
|
}
|
|
|
|
Player_V2CMS::~Player_V2CMS() {
|
|
Common::StackLock lock(_mutex);
|
|
|
|
_mixer->stopHandle(_soundHandle);
|
|
delete _cmsEmu;
|
|
}
|
|
|
|
void Player_V2CMS::setMusicVolume(int vol) {
|
|
}
|
|
|
|
void Player_V2CMS::stopAllSounds() {
|
|
Common::StackLock lock(_mutex);
|
|
|
|
for (int i = 0; i < 4; i++) {
|
|
clear_channel(i);
|
|
}
|
|
_next_nr = _current_nr = 0;
|
|
_next_data = _current_data = 0;
|
|
_midiData = 0;
|
|
_midiSongBegin = 0;
|
|
_midiDelay = 0;
|
|
offAllChannels();
|
|
}
|
|
|
|
void Player_V2CMS::stopSound(int nr) {
|
|
Common::StackLock lock(_mutex);
|
|
|
|
if (_next_nr == nr) {
|
|
_next_nr = 0;
|
|
_next_data = 0;
|
|
}
|
|
if (_current_nr == nr) {
|
|
for (int i = 0; i < 4; i++) {
|
|
clear_channel(i);
|
|
}
|
|
_current_nr = 0;
|
|
_current_data = 0;
|
|
chainNextSound();
|
|
}
|
|
if (_loadedMidiSong == nr) {
|
|
_midiData = 0;
|
|
_midiSongBegin = 0;
|
|
_midiDelay = 0;
|
|
offAllChannels();
|
|
}
|
|
}
|
|
|
|
void Player_V2CMS::startSound(int nr) {
|
|
Common::StackLock lock(_mutex);
|
|
|
|
byte *data = _vm->getResourceAddress(rtSound, nr);
|
|
assert(data);
|
|
|
|
if (data[6] == 0x80) {
|
|
loadMidiData(data, nr);
|
|
} else {
|
|
int cprio = _current_data ? *(_current_data + _header_len) : 0;
|
|
int prio = *(data + _header_len);
|
|
int nprio = _next_data ? *(_next_data + _header_len) : 0;
|
|
|
|
int restartable = *(data + _header_len + 1);
|
|
|
|
if (!_current_nr || cprio <= prio) {
|
|
int tnr = _current_nr;
|
|
int tprio = cprio;
|
|
byte *tdata = _current_data;
|
|
|
|
chainSound(nr, data);
|
|
nr = tnr;
|
|
prio = tprio;
|
|
data = tdata;
|
|
restartable = data ? *(data + _header_len + 1) : 0;
|
|
}
|
|
|
|
if (!_current_nr) {
|
|
nr = 0;
|
|
_next_nr = 0;
|
|
_next_data = 0;
|
|
}
|
|
|
|
if (nr != _current_nr
|
|
&& restartable
|
|
&& (!_next_nr
|
|
|| nprio <= prio)) {
|
|
|
|
_next_nr = nr;
|
|
_next_data = data;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Player_V2CMS::loadMidiData(byte *data, int sound) {
|
|
memset(_midiChannelUse, 0, sizeof(byte)*16);
|
|
|
|
_tempo = data[7];
|
|
_looping = data[8];
|
|
|
|
byte channels = data[14];
|
|
byte curChannel = 0;
|
|
byte *voice2 = data + 23;
|
|
|
|
for (; channels != 0; ++curChannel, --channels, voice2 += 16) {
|
|
if (*(data + 15 + curChannel)) {
|
|
byte channel = *(data + 15 + curChannel) - 1;
|
|
_midiChannelUse[channel] = 1;
|
|
|
|
Voice *voiceDef = &_cmsVoicesBase[channel];
|
|
|
|
byte attackDecay = voice2[10];
|
|
voiceDef->attack = attackRate[attackDecay >> 4];
|
|
voiceDef->decay = decayRate[attackDecay & 0x0F];
|
|
byte sustainRelease = voice2[11];
|
|
voiceDef->sustain = sustainRate[sustainRelease >> 4];
|
|
voiceDef->release = releaseRate[sustainRelease & 0x0F];
|
|
|
|
if (voice2[3] & 0x40) {
|
|
voiceDef->vibrato = 0x0301;
|
|
if (voice2[13] & 0x40) {
|
|
voiceDef->vibrato = 0x0601;
|
|
}
|
|
} else {
|
|
voiceDef->vibrato = 0;
|
|
}
|
|
|
|
if (voice2[8] & 0x80) {
|
|
voiceDef->vibrato2 = 0x0506;
|
|
if (voice2[13] & 0x80) {
|
|
voiceDef->vibrato2 = 0x050C;
|
|
}
|
|
} else {
|
|
voiceDef->vibrato2 = 0;
|
|
}
|
|
|
|
if ((voice2[8] & 0x0F) > 1) {
|
|
voiceDef->octadd = 0x01;
|
|
} else {
|
|
voiceDef->octadd = 0x00;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int i = 0, channel = 0; i < 8; ++i, channel += 2) {
|
|
_cmsVoices[i].chanNumber = 0xFF;
|
|
_cmsVoices[i].curVolume = 0;
|
|
_cmsVoices[i].nextVoice = 0;
|
|
|
|
_midiChannel[channel] = 0;
|
|
}
|
|
|
|
_midiDelay = 0;
|
|
memset(_cmsChips, 0, sizeof(MusicChip)*2);
|
|
_midiData = data + 151;
|
|
_midiSongBegin = _midiData + data[9];
|
|
|
|
_loadedMidiSong = sound;
|
|
}
|
|
|
|
int Player_V2CMS::getSoundStatus(int nr) const {
|
|
return _current_nr == nr || _next_nr == nr || _loadedMidiSong == nr;
|
|
}
|
|
|
|
void Player_V2CMS::processMidiData(uint ticks) {
|
|
byte *currentData = _midiData;
|
|
byte command = 0x00;
|
|
int16 temp = 0;
|
|
|
|
if (!_midiDelay) {
|
|
while (true) {
|
|
if ((command = *currentData++) == 0xFF) {
|
|
if ((command = *currentData++) == 0x2F) {
|
|
if (_looping == 0) {
|
|
currentData = _midiData = _midiSongBegin;
|
|
continue;
|
|
}
|
|
_midiData = _midiSongBegin = 0;
|
|
offAllChannels();
|
|
return;
|
|
} else {
|
|
if (command == 0x58) {
|
|
currentData += 6;
|
|
}
|
|
}
|
|
} else {
|
|
_lastMidiCommand = command;
|
|
if (command < 0x90) {
|
|
clearNote(currentData);
|
|
} else {
|
|
playNote(currentData);
|
|
}
|
|
}
|
|
|
|
temp = command = *currentData++;
|
|
if (command & 0x80) {
|
|
temp = (command & 0x7F) << 8;
|
|
command = *currentData++;
|
|
temp |= (command << 1);
|
|
temp >>= 1;
|
|
}
|
|
temp >>= 1;
|
|
int lastBit = temp & 1;
|
|
temp >>= 1;
|
|
temp += lastBit;
|
|
|
|
if (temp)
|
|
break;
|
|
}
|
|
_midiData = currentData;
|
|
_midiDelay = temp;
|
|
}
|
|
|
|
_midiDelay -= ticks;
|
|
if (_midiDelay < 0)
|
|
_midiDelay = 0;
|
|
|
|
return;
|
|
}
|
|
|
|
int Player_V2CMS::readBuffer(int16 *buffer, const int numSamples) {
|
|
Common::StackLock lock(_mutex);
|
|
|
|
uint step = 1;
|
|
int len = numSamples / 2;
|
|
|
|
// maybe this needs a complete rewrite
|
|
do {
|
|
if (_midiData) {
|
|
--_clkFrequenz;
|
|
if (!(_clkFrequenz & 0x01)) {
|
|
playVoice();
|
|
}
|
|
|
|
_tempoSum += _tempo;
|
|
// FIXME: _tempoSum is declared as char; on some systems char is unsigned.
|
|
// E.g. on OS X. Hence the following check is always false.
|
|
// Moral of the story: Use uint8, int8 or any of the other types provided by
|
|
// ScummVM if you want to ensure signedness and number of available bits.
|
|
if (_tempoSum < 0) {
|
|
// this have to be called in the same rate as in the original (I think)
|
|
processMidiData(1);
|
|
}
|
|
}
|
|
|
|
if (!(_next_tick >> FIXP_SHIFT) && !_midiData) {
|
|
_next_tick += _tick_len;
|
|
nextTick();
|
|
play();
|
|
}
|
|
|
|
step = len;
|
|
if (step > (_next_tick >> FIXP_SHIFT))
|
|
step = (_next_tick >> FIXP_SHIFT);
|
|
_cmsEmu->readBuffer(buffer, step);
|
|
buffer += 2 * step;
|
|
_next_tick -= step << FIXP_SHIFT;
|
|
} while (len -= step);
|
|
|
|
return numSamples;
|
|
}
|
|
|
|
void Player_V2CMS::playVoice() {
|
|
if (_outputTableReady) {
|
|
playMusicChips(_cmsChips);
|
|
_outputTableReady = 0;
|
|
}
|
|
|
|
_octaveMask = 0xF0;
|
|
Voice2 *voice =0;
|
|
for (int i = 0; i < 8; ++i) {
|
|
voice = &_cmsVoices[i];
|
|
_octaveMask = ~_octaveMask;
|
|
|
|
if (voice->chanNumber != 0xFF) {
|
|
processChannel(voice);
|
|
continue;
|
|
}
|
|
|
|
if (!voice->curVolume) {
|
|
*(voice->amplitudeOutput) = 0;
|
|
}
|
|
|
|
int volume = voice->curVolume - voice->releaseRate;
|
|
voice->curVolume = volume;
|
|
|
|
if (volume < 0) {
|
|
volume = voice->curVolume = 0;
|
|
}
|
|
|
|
*(voice->amplitudeOutput) = ((volume >> 4) | (volume & 0xF0)) & voice->channel;
|
|
++_outputTableReady;
|
|
}
|
|
}
|
|
|
|
void Player_V2CMS::processChannel(Voice2 *channel) {
|
|
++_outputTableReady;
|
|
switch (channel->nextProcessState) {
|
|
case PROCESS_RELEASE:
|
|
processRelease(channel);
|
|
break;
|
|
|
|
case PROCESS_ATTACK:
|
|
processAttack(channel);
|
|
break;
|
|
|
|
case PROCESS_DECAY:
|
|
processDecay(channel);
|
|
break;
|
|
|
|
case PROCESS_SUSTAIN:
|
|
processSustain(channel);
|
|
break;
|
|
|
|
case PROCESS_VIBRATO:
|
|
processVibrato(channel);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Player_V2CMS::processRelease(Voice2 *channel) {
|
|
channel->curVolume -= channel->releaseRate;
|
|
if (channel->curVolume < 0)
|
|
channel->curVolume = 0;
|
|
processVibrato(channel);
|
|
}
|
|
|
|
void Player_V2CMS::processAttack(Voice2 *channel) {
|
|
channel->curVolume += channel->attackRate;
|
|
if (channel->curVolume >= 0) {
|
|
if (channel->curVolume <= channel->maxAmpl)
|
|
return processVibrato(channel);
|
|
}
|
|
channel->curVolume = channel->maxAmpl;
|
|
channel->nextProcessState = PROCESS_DECAY;
|
|
processVibrato(channel);
|
|
}
|
|
|
|
void Player_V2CMS::processDecay(Voice2 *channel) {
|
|
channel->curVolume -= channel->decayRate;
|
|
if (channel->curVolume >= 0) {
|
|
if (channel->curVolume > channel->sustainRate)
|
|
return processVibrato(channel);
|
|
}
|
|
channel->curVolume = channel->sustainRate;
|
|
channel->nextProcessState = PROCESS_SUSTAIN;
|
|
processVibrato(channel);
|
|
}
|
|
|
|
void Player_V2CMS::processSustain(Voice2 *channel) {
|
|
if (channel->unkVibratoRate) {
|
|
int volume = (int)channel->curVolume + (int)channel->unkRate;
|
|
if (volume & 0xFF00) {
|
|
volume = ((~volume) >> 8) & 0xFF;
|
|
}
|
|
channel->curVolume = volume;
|
|
--(channel->unkCount);
|
|
if (!channel->unkCount) {
|
|
channel->unkRate = ~(channel->unkRate);
|
|
channel->unkCount = (channel->unkVibratoDepth & 0x0F) << 1;
|
|
}
|
|
}
|
|
processVibrato(channel);
|
|
}
|
|
|
|
void Player_V2CMS::processVibrato(Voice2 *channel) {
|
|
if (channel->vibratoRate) {
|
|
uint16 temp = channel->curFreq + channel->curVibratoRate;
|
|
channel->curOctave += (temp & 0xFF00) >> 8;
|
|
channel->curFreq = temp & 0xFF;
|
|
--(channel->curVibratoUnk);
|
|
if (!channel->curVibratoUnk) {
|
|
channel->curVibratoRate = ~(channel->curVibratoRate);
|
|
channel->curVibratoUnk = (channel->vibratoDepth & 0x0F) << 1;
|
|
}
|
|
}
|
|
|
|
byte *output = channel->amplitudeOutput;
|
|
*output = ((channel->curVolume >> 4) | (channel->curVolume & 0xF0)) & channel->channel;
|
|
output = channel->freqOutput;
|
|
*output = channel->curFreq;
|
|
output = channel->octaveOutput;
|
|
*output = ((((channel->curOctave >> 4) | (channel->curOctave & 0x0F)) & _octaveMask) | ((~_octaveMask) & *output));
|
|
}
|
|
|
|
void Player_V2CMS::offAllChannels() {
|
|
warning("offAllChannels STUB");
|
|
/*
|
|
// after using this sound can not be played anymore (since it would deinit the emulator)
|
|
static const byte cmsOffData[10*2] = {
|
|
0x1C, 0x02,
|
|
0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00,
|
|
0x14, 0x3F, 0x15, 0x00, 0x16, 0x00
|
|
};
|
|
|
|
for (int cmsPort = 0x220, i = 0; i < 2; cmsPort += 2, ++i) {
|
|
for (int off = 0; off < 10; ++off) {
|
|
_cmsEmu->portWrite(cmsPort+1, cmsOffData[off*2]);
|
|
_cmsEmu->portWrite(cmsPort, cmsOffData[off*2+1]);
|
|
}
|
|
}*/
|
|
}
|
|
|
|
Player_V2CMS::Voice2 *Player_V2CMS::getFreeVoice() {
|
|
Voice2 *curVoice = 0;
|
|
Voice2 *selected = 0;
|
|
uint8 volume = 0xFF;
|
|
|
|
for (int i = 0; i < 8; ++i) {
|
|
curVoice = &_cmsVoices[i];
|
|
|
|
if (curVoice->chanNumber == 0xFF) {
|
|
if (!curVoice->curVolume) {
|
|
selected = curVoice;
|
|
break;
|
|
}
|
|
|
|
if (curVoice->curVolume < volume) {
|
|
selected = curVoice;
|
|
volume = selected->curVolume;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (selected) {
|
|
selected->chanNumber = _lastMidiCommand & 0x0F;
|
|
|
|
uint8 channel = selected->chanNumber;
|
|
Voice2 *oldChannel = _midiChannel[channel];
|
|
_midiChannel[channel] = selected;
|
|
selected->nextVoice = oldChannel;
|
|
}
|
|
|
|
return selected;
|
|
}
|
|
|
|
void Player_V2CMS::playNote(byte *&data) {
|
|
byte channel = _lastMidiCommand & 0x0F;
|
|
if (_midiChannelUse[channel]) {
|
|
Voice2 *freeVoice = getFreeVoice();
|
|
if (freeVoice) {
|
|
Voice *voice = &_cmsVoicesBase[freeVoice->chanNumber];
|
|
freeVoice->attackRate = voice->attack;
|
|
freeVoice->decayRate = voice->decay;
|
|
freeVoice->sustainRate = voice->sustain;
|
|
freeVoice->releaseRate = voice->release;
|
|
freeVoice->octaveAdd = voice->octadd;
|
|
freeVoice->vibratoRate = freeVoice->curVibratoRate = voice->vibrato;
|
|
freeVoice->unkVibratoRate = freeVoice->unkRate = voice->vibrato2;
|
|
freeVoice->maxAmpl = 0xFF;
|
|
|
|
uint8 rate = freeVoice->attackRate;
|
|
uint8 volume = freeVoice->curVolume >> 1;
|
|
|
|
if (rate < volume)
|
|
rate = volume;
|
|
|
|
rate -= freeVoice->attackRate;
|
|
freeVoice->curVolume = rate;
|
|
freeVoice->playingNote = *data;
|
|
int octave = octaveTable[(*data + 3) << 1] + freeVoice->octaveAdd - 3;
|
|
if (octave < 0)
|
|
octave = 0;
|
|
if (octave > 7)
|
|
octave = 7;
|
|
if (!octave)
|
|
++octave;
|
|
freeVoice->curOctave = octave;
|
|
freeVoice->curFreq = freqTable[volume << 2];
|
|
freeVoice->curVolume = 0;
|
|
freeVoice->nextProcessState = PROCESS_ATTACK;
|
|
if (_lastMidiCommand & 1)
|
|
freeVoice->channel = 0xF0;
|
|
else
|
|
freeVoice->channel = 0x0F;
|
|
}
|
|
}
|
|
data += 2;
|
|
}
|
|
|
|
Player_V2CMS::Voice2 *Player_V2CMS::getPlayVoice(byte param) {
|
|
byte channelNum = _lastMidiCommand & 0x0F;
|
|
Voice2 *channel = _midiChannel[channelNum];
|
|
|
|
if (channel) {
|
|
Voice2 *backUp = 0;
|
|
while (true) {
|
|
if (channel->playingNote == param)
|
|
break;
|
|
|
|
backUp = channel;
|
|
channel = channel->nextVoice;
|
|
if (!channel)
|
|
return 0;
|
|
}
|
|
|
|
Voice2 *backUp2 = channel->nextVoice;
|
|
{
|
|
Voice2 *temp = backUp;
|
|
backUp = channel;
|
|
channel = temp;
|
|
}
|
|
if (channel) {
|
|
channel->nextVoice = backUp2;
|
|
} else {
|
|
_midiChannel[channelNum] = backUp2;
|
|
}
|
|
channel = backUp;
|
|
}
|
|
|
|
return channel;
|
|
}
|
|
|
|
void Player_V2CMS::clearNote(byte *&data) {
|
|
Voice2 *voice = getPlayVoice(*data);
|
|
if (voice) {
|
|
voice->chanNumber = 0xFF;
|
|
voice->nextVoice = 0;
|
|
voice->nextProcessState = PROCESS_RELEASE;
|
|
}
|
|
data += 2;
|
|
}
|
|
|
|
void Player_V2CMS::play() {
|
|
_octaveMask = 0xF0;
|
|
channel_data *chan = &(_channels[0].d);
|
|
|
|
static byte volumeReg[4] = { 0x00, 0x00, 0x00, 0x00 };
|
|
static byte octaveReg[4] = { 0x66, 0x66, 0x66, 0x66 };
|
|
static byte freqReg[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
|
|
|
|
static byte freqEnable = 0x3E;
|
|
static byte noiseEnable = 0x01;
|
|
static byte noiseGen = 0x02;
|
|
for (int i = 1; i <= 4; ++i) {
|
|
if (chan->time_left) {
|
|
uint16 freq = chan->freq;
|
|
|
|
if (i == 4) {
|
|
if ((freq >> 8) & 0x40) {
|
|
noiseGen = freq & 0xFF;
|
|
} else {
|
|
noiseGen = 3;
|
|
freqReg[0] = freqReg[3];
|
|
octaveReg[0] = (octaveReg[0] & 0xF0) | ((octaveReg[1] & 0xF0) >> 4);
|
|
}
|
|
} else {
|
|
if (freq == 0) {
|
|
freq = 0xFFC0;
|
|
}
|
|
|
|
int cmsOct = 2;
|
|
int freqOct = 0x8000;
|
|
|
|
while (true) {
|
|
if (freq >= freqOct) {
|
|
break;
|
|
}
|
|
freqOct >>= 1;
|
|
++cmsOct;
|
|
if (cmsOct == 8) {
|
|
--cmsOct;
|
|
freq = 1024;
|
|
break;
|
|
}
|
|
}
|
|
byte oct = cmsOct << 4;
|
|
oct |= cmsOct;
|
|
|
|
oct &= _octaveMask;
|
|
oct |= ((~_octaveMask) & octaveReg[((i & 3) >> 1)]);
|
|
octaveReg[((i & 3) >> 1)] = oct;
|
|
|
|
freq >>= -(cmsOct-9);
|
|
freqReg[(i&3)] = (-(freq-511)) & 0xFF;
|
|
}
|
|
volumeReg[i & 3] = volumeTable[chan->volume >> 12];
|
|
} else {
|
|
volumeReg[i & 3] = 0;
|
|
}
|
|
chan = &(_channels[i].d);
|
|
_octaveMask ^= 0xFF;
|
|
}
|
|
|
|
// with the high nibble of the volumeReg value
|
|
// the right channels amplitude is set
|
|
// with the low value the left channels amplitude
|
|
_cmsEmu->portWrite(0x221, 0);
|
|
_cmsEmu->portWrite(0x220, volumeReg[0]);
|
|
_cmsEmu->portWrite(0x221, 1);
|
|
_cmsEmu->portWrite(0x220, volumeReg[1]);
|
|
_cmsEmu->portWrite(0x221, 2);
|
|
_cmsEmu->portWrite(0x220, volumeReg[2]);
|
|
_cmsEmu->portWrite(0x221, 3);
|
|
_cmsEmu->portWrite(0x220, volumeReg[3]);
|
|
_cmsEmu->portWrite(0x221, 8);
|
|
_cmsEmu->portWrite(0x220, freqReg[0]);
|
|
_cmsEmu->portWrite(0x221, 9);
|
|
_cmsEmu->portWrite(0x220, freqReg[1]);
|
|
_cmsEmu->portWrite(0x221, 10);
|
|
_cmsEmu->portWrite(0x220, freqReg[2]);
|
|
_cmsEmu->portWrite(0x221, 11);
|
|
_cmsEmu->portWrite(0x220, freqReg[3]);
|
|
_cmsEmu->portWrite(0x221, 0x10);
|
|
_cmsEmu->portWrite(0x220, octaveReg[0]);
|
|
_cmsEmu->portWrite(0x221, 0x11);
|
|
_cmsEmu->portWrite(0x220, octaveReg[1]);
|
|
_cmsEmu->portWrite(0x221, 0x14);
|
|
_cmsEmu->portWrite(0x220, freqEnable);
|
|
_cmsEmu->portWrite(0x221, 0x15);
|
|
_cmsEmu->portWrite(0x220, noiseEnable);
|
|
_cmsEmu->portWrite(0x221, 0x16);
|
|
_cmsEmu->portWrite(0x220, noiseGen);
|
|
}
|
|
|
|
void Player_V2CMS::playMusicChips(const MusicChip *table) {
|
|
int cmsPort = 0x21E;
|
|
|
|
do {
|
|
cmsPort += 2;
|
|
_cmsEmu->portWrite(cmsPort+1, 0);
|
|
_cmsEmu->portWrite(cmsPort, table->ampl[0]);
|
|
_cmsEmu->portWrite(cmsPort+1, 1);
|
|
_cmsEmu->portWrite(cmsPort, table->ampl[1]);
|
|
_cmsEmu->portWrite(cmsPort+1, 2);
|
|
_cmsEmu->portWrite(cmsPort, table->ampl[2]);
|
|
_cmsEmu->portWrite(cmsPort+1, 3);
|
|
_cmsEmu->portWrite(cmsPort, table->ampl[3]);
|
|
_cmsEmu->portWrite(cmsPort+1, 8);
|
|
_cmsEmu->portWrite(cmsPort, table->freq[0]);
|
|
_cmsEmu->portWrite(cmsPort+1, 9);
|
|
_cmsEmu->portWrite(cmsPort, table->freq[1]);
|
|
_cmsEmu->portWrite(cmsPort+1, 10);
|
|
_cmsEmu->portWrite(cmsPort, table->freq[2]);
|
|
_cmsEmu->portWrite(cmsPort+1, 11);
|
|
_cmsEmu->portWrite(cmsPort, table->freq[3]);
|
|
_cmsEmu->portWrite(cmsPort+1, 0x10);
|
|
_cmsEmu->portWrite(cmsPort, table->octave[0]);
|
|
_cmsEmu->portWrite(cmsPort+1, 0x11);
|
|
_cmsEmu->portWrite(cmsPort, table->octave[1]);
|
|
_cmsEmu->portWrite(cmsPort+1, 0x14);
|
|
_cmsEmu->portWrite(cmsPort, 0x3F);
|
|
_cmsEmu->portWrite(cmsPort+1, 0x15);
|
|
_cmsEmu->portWrite(cmsPort, 0x00);
|
|
++table;
|
|
} while ((cmsPort & 2) == 0);
|
|
}
|
|
|
|
} // End of namespace Scumm
|