inline void ay::ayStep(short &s0, short &s1, short &s2)
{
s0 = s1 = s2 = 0;
while(ay_tacts_counter < ay_tacts)
{
ay_tacts_counter += TACTS_MULT;
if(++chnl_period0 >= tone_period_init0)
{
chnl_period0 -= tone_period_init0;
chnl_trigger0 ^= 1;
}
if(++chnl_period1 >= tone_period_init1)
{
chnl_period1 -= tone_period_init1;
chnl_trigger1 ^= 1;
}
if(++chnl_period2 >= tone_period_init2)
{
chnl_period2 -= tone_period_init2;
chnl_trigger2 ^= 1;
}
if(++noise_period >= noise_period_init)
{
noise_period = 0;
if((noise_reg + 1) & 2)
noise_trigger ^= 1;
if(noise_reg & 1)
noise_reg ^= 0x24000;
noise_reg >>= 1;
}
updateEnvelope();
}
void OperatorWidget::setContent(const OpaOperatorParams * params, bool send)
{
QString text;
opa.setEnable(false);
setFlags(params->flags);
ui->volumeSlide->setValue(params->volume);
on_volumeSlide_valueChanged(params->volume);
int coarse = (params->flags & OPA_OP_ABSOLUTE) ?
((int8_t) params->coarse) + 128 : params->coarse;
ui->coarseDial->setValue(coarse);
on_coarseDial_valueChanged(coarse);
ui->fineDial->setValue(params->fine);
on_fineDial_valueChanged(params->fine);
ui->LFOSpeedDial->setValue(params->LFOSpeed);
ui->LFOAmountDial->setValue(params->LFOAmount);
ui->feedbackDial->setValue(params->feedback);
ui->attackDial->setValue(params->envAttack);
ui->decayDial->setValue(params->envDecay);
ui->sustainDial->setValue(params->envSusLevel);
ui->initDial ->setValue(params->envIniLevel);
ui->releaseDial->setValue(params->envRelease);
updateEnvelope();
opa.setEnable(true);
if (send) {
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_VOLUME), params->volume);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_COARSE), params->coarse);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_FINE), params->fine);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_LFOSPEED), params->LFOSpeed);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_LFOAMOUNT), params->LFOAmount);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_FEEDBACK), params->feedback);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVATTACK), params->envAttack);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVDECAY), params->envDecay);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVSUSTAIN_LEVEL), params->envSusLevel);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVINIT_LEVEL), params->envIniLevel);
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVRELEASE), params->envRelease);
writeFlags();
}
}
void SoundGenerator::run()
{
static int nextCC = 0;
m_clockCount++;
// every 16 clock cycles => 62,5 kHz
if ((m_clockCount & 0x0f) == 0)
{
updateEnvelope();
updateNoise();
updateChannel(m_channelA, m_mixerA);
updateChannel(m_channelB, m_mixerB);
updateChannel(m_channelC, m_mixerC);
*m_bufferPtr++ = (m_channelC.mixValue & 0xff) - 128;
m_bufferPos += 1;
if (m_bufferPos >= m_audioBuffer.length())
{
m_bufferPtr = reinterpret_cast<qint8 *>(m_audioBuffer.data());
m_bufferPos = 0;
}
*m_bufferPtr++ = (m_channelA.mixValue & 0xff) - 128;
m_bufferPos += 1;
if (m_bufferPos >= m_audioBuffer.length())
{
m_bufferPtr = reinterpret_cast<qint8 *>(m_audioBuffer.data());
m_bufferPos = 0;
}
m_channelA.mixValue = 0;
m_channelB.mixValue = 0;
m_channelC.mixValue = 0;
}
}
void OperatorWidget::on_releaseDial_valueChanged(int value)
{
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVRELEASE), value);
updateEnvelope();
}
void OperatorWidget::on_initDial_valueChanged(int value)
{
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVINIT_LEVEL), value);
updateEnvelope();
}
void OperatorWidget::on_sustainDial_valueChanged(int value)
{
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVSUSTAIN_LEVEL), value);
updateEnvelope();
}
void OperatorWidget::on_decayDial_valueChanged(int value)
{
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVDECAY), value);
updateEnvelope();
}
void OperatorWidget::on_attackDial_valueChanged(int value)
{
opa.programParamWrite(programIndex, getParamIndex(OPA_OP_ENVATTACK), value);
updateEnvelope();
}
