// a: 0..6
void Player_SID::releaseChannel(int channel) {
stopChannel(channel);
if (channel >= 4) {
return;
}
if (channel < 3) {
SIDReg23Stuff = SIDReg23;
clearSIDWaveform(channel);
}
func_4F45(channel);
if (channel >= 3) {
return;
}
if ((SIDReg23 != SIDReg23Stuff) &&
(SIDReg23 & 0x07) == 0)
{
if (filterUsed) {
func_4F45(3);
stopChannel(3);
}
}
stopChannel(channel + 4);
}
void Player_MOD::do_mix(int16 *data, uint len) {
int i;
int dpos = 0;
uint dlen = 0;
memset(data, 0, 2 * len * sizeof(int16));
while (len) {
if (_playproc) {
dlen = _mixamt - _mixpos;
if (!_mixpos)
_playproc(_playparam);
if (dlen <= len) {
_mixpos = 0;
len -= dlen;
} else {
_mixpos = len;
dlen = len;
len = 0;
}
} else {
dlen = len;
len = 0;
}
for (i = 0; i < MOD_MAXCHANS; i++) {
if (_channels[i].id) {
Audio::st_volume_t vol_l = (127 - _channels[i].pan) * _channels[i].vol / 127;
Audio::st_volume_t vol_r = (127 + _channels[i].pan) * _channels[i].vol / 127;
for (uint j = 0; j < dlen; j++) {
// simple linear resample, unbuffered
int delta = (uint32)(_channels[i].freq * 0x10000) / _sampleRate;
uint16 cfrac = ~_channels[i].ctr & 0xFFFF;
if (_channels[i].ctr + delta < 0x10000)
cfrac = delta;
_channels[i].ctr += delta;
int32 cpos = _channels[i].pos * cfrac / 0x10000;
while (_channels[i].ctr >= 0x10000) {
if (_channels[i].input->readBuffer(&_channels[i].pos, 1) != 1) { // out of data
stopChannel(_channels[i].id);
goto skipchan; // exit 2 loops at once
}
_channels[i].ctr -= 0x10000;
if (_channels[i].ctr > 0x10000)
cpos += _channels[i].pos;
else
cpos += (int32)(_channels[i].pos * (_channels[i].ctr & 0xFFFF)) / 0x10000;
}
int16 pos = 0;
// if too many samples play in a row, the calculation below will overflow and clip
// so try and split it up into pieces it can manage comfortably
while (cpos < -0x8000) {
pos -= 0x80000000 / delta;
cpos += 0x8000;
}
while (cpos > 0x7FFF) {
pos += 0x7FFF0000 / delta;
cpos -= 0x7FFF;
}
pos += cpos * 0x10000 / delta;
Audio::clampedAdd(data[(dpos + j) * 2 + 0], pos * vol_l / Audio::Mixer::kMaxMixerVolume);
Audio::clampedAdd(data[(dpos + j) * 2 + 1], pos * vol_r / Audio::Mixer::kMaxMixerVolume);
}
}
skipchan: ; // channel ran out of data
}
dpos += dlen;
}
}
void SshScpSend::sshDataReceived()
{
static char mem[1024];
static size_t nread;
static char *ptr;
int rc;
switch(_currentState)
{
case ScpPrepare:
if(!sshChannel) {
sshChannel = libssh2_scp_send(sshClient->session(), qPrintable(_destination), _fileinfo.st_mode & 0777, (unsigned long)_fileinfo.st_size);
if ((!sshChannel) && (libssh2_session_last_errno(sshClient->session()) != LIBSSH2_ERROR_EAGAIN)) {
char *errmsg;
int errlen;
libssh2_session_last_error(sshClient->session(), &errmsg, &errlen, 0);
qDebug() << "ERROR : Unable to open a session: " << errmsg;
}
if(sshChannel) {
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : ScpPrepare Send Accepted";
#endif
_currentState = ScpCopy;
}
}
break;
case ScpCopy:
do {
nread = fread(mem, 1, sizeof(mem), _local);
if (nread <= 0) {
/* end of file */
_currentState = ScpEof;
sshDataReceived();
break;
}
ptr = mem;
do {
/* write the same data over and over, until error or completion */
rc = libssh2_channel_write(sshChannel, ptr, nread);
if (rc < 0) {
qDebug() << "ERROR : Copy error " << rc;
_currentState = ScpError;
break;
}
else {
/* rc indicates how many bytes were written this time */
ptr += rc;
nread -= rc;
}
} while (nread);
} while(1);
break;
case ScpEof:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Sending EOF";
#endif
libssh2_channel_send_eof(sshChannel);
_currentState = ScpClose;
break;
case ScpClose:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Waiting EOF";
#endif
libssh2_channel_wait_eof(sshChannel);
_state = true;
_currentState = ScpEnd;
stopChannel();
emit transfertTerminate();
break;
case ScpError:
qDebug() << "ERROR : SCP ERROR";
_state = false;
stopChannel();
emit transfertTerminate();
break;
case ScpEnd:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Wait end";
#endif
break;
}
}
void Sound::stopTankIdle()
{
stopChannel(m_tankIdleChannel);
}