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KYRA/PC98: fix sfx volume control

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svn-id: r50602
This commit is contained in:
Florian Kagerer 2010-07-02 19:08:22 +00:00
parent e22a75de99
commit 5625c6d1ee
1 changed files with 54 additions and 18 deletions
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72
engines/kyra/sound_towns.cpp
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@ -1858,10 +1858,29 @@ void TownsPC98_OpnChannel::loadData(uint8 *data) {
_dataPtr = data;
_totalLevel = 0x7F;
uint8 *src_b = _dataPtr;
int loop = 1;
uint8 *tmp = _dataPtr;
for (bool loop = true; loop; ) {
uint8 cmd = *tmp++;
if (cmd < 0xf0) {
tmp++;
} else if (cmd == 0xff) {
if (READ_LE_UINT16(tmp))
_drv->_looping |= _idFlag;
else
loop = false;
} else if (cmd == 0xf6) {
// reset repeat section countdown
tmp[0] = tmp[1];
tmp += 4;
} else {
tmp += _drv->_opnFxCmdLen[cmd - 240];
}
}
/*uint8 *src_b = _dataPtr;
uint8 cmd = 0;
while (loop) {
for (int loop = 1; loop; ) {
if (loop == 1) {
cmd = *src_b++;
if (cmd < 0xf0) {
@ -1882,11 +1901,12 @@ void TownsPC98_OpnChannel::loadData(uint8 *data) {
src_b += _drv->_opnFxCmdLen[cmd - 240];
loop = 1;
} else if (loop == 3) {
// reset repeat section countdown
src_b[0] = src_b[1];
src_b += 4;
loop = 1;
}
}
}*/
}
void TownsPC98_OpnChannel::processEvents() {
@ -2498,6 +2518,22 @@ void TownsPC98_OpnSfxChannel::loadData(uint8 *data) {
_dataPtr = data;
_ssgTl = 0xff;
_algorithm = 0x80;
uint8 *tmp = _dataPtr;
for (bool loop = true; loop; ) {
uint8 cmd = *tmp++;
if (cmd < 0xf0) {
tmp++;
} else if (cmd == 0xff && !*tmp) {
loop = false;
} else if (cmd == 0xf6) {
// reset repeat section countdown
tmp[0] = tmp[1];
tmp += 4;
} else {
tmp += _drv->_opnFxCmdLen[cmd - 240];
}
}
}
TownsPC98_OpnChannelPCM::TownsPC98_OpnChannelPCM(TownsPC98_OpnDriver *driver, uint8 regOffs,
@ -2750,15 +2786,15 @@ void TownsPC98_OpnSquareSineSource::nextTick(int32 *buffer, uint32 bufferSize) {
finOut += _tleTable[_channels[ii].out ? _pReslt : 0];
else
finOut += _tlTable[_channels[ii].out ? (_channels[ii].vol & 0x0f) : 0];
if ((1 << ii) & _volMaskA)
finOut = (finOut * _volumeA) / Audio::Mixer::kMaxMixerVolume;
if ((1 << ii) & _volMaskB)
finOut = (finOut * _volumeB) / Audio::Mixer::kMaxMixerVolume;
}
finOut /= 3;
if ((1 << i) & _volMaskA)
finOut = (finOut * _volumeA) / Audio::Mixer::kMaxMixerVolume;
if ((1 << i) & _volMaskB)
finOut = (finOut * _volumeB) / Audio::Mixer::kMaxMixerVolume;
finOut /= 3;
buffer[i << 1] += finOut;
buffer[(i << 1) + 1] += finOut;
@ -3764,21 +3800,21 @@ void TownsPC98_OpnDriver::setSfxTempo(uint16 tempo) {
}
void TownsPC98_OpnDriver::startSoundEffect() {
_updateSfxFlag = 0;
int volFlags = 0;
for (int i = 0; i < 2; i++) {
if (_sfxOffsets[i]) {
_ssgChannels[i + 1]->protect();
_sfxChannels[i]->reset();
_sfxChannels[i]->loadData(_sfxData + _sfxOffsets[i]);
_updateSfxFlag |= _sfxChannels[i]->_idFlag;
volFlags |= (_sfxChannels[i]->_idFlag << _numChan);
} else {
_ssgChannels[i + 1]->restore();
_updateSfxFlag &= ~_sfxChannels[i]->_idFlag;
}
}
int volFlags = 0;
for (int i = 0; i < (_numChan + _numSSG - 2); i++)
volFlags |= (1 << i);
setVolumeChannelMasks(volFlags, ~volFlags);
setVolumeChannelMasks(~volFlags, volFlags);
_sfxData = 0;
}