/* generate sound by oversampling */
uint32_t namco_update_one(write_stream_view buffer, Pointer <int16_t> wave, uint32_t counter, uint32_t freq) //uint32_t namco_update_one(write_stream_view &buffer, const int16_t *wave, uint32_t counter, uint32_t freq);
{
for (int sampindex = 0; sampindex < buffer.samples(); sampindex++)
{
buffer.add_int(sampindex, wave[WAVEFORM_POSITION((int)counter)], 32768);
counter += freq;
}
return(counter);
}
// sound interface overrides
//-------------------------------------------------
// sound_stream_update - mix all inputs to one
// output
//-------------------------------------------------
public override void sound_stream_update(sound_stream stream, std.vector <read_stream_view> inputs, std.vector <write_stream_view> outputs) //virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
{
// special case: single input, single output, same rate
if (inputs.size() == 1 && outputs.size() == 1 && inputs[0].sample_rate() == outputs[0].sample_rate())
{
outputs[0] = new write_stream_view(inputs[0]); //outputs[0] = inputs[0];
return;
}
// reset the clear flags
std.fill(m_output_clear, false); //std::fill(std::begin(m_output_clear), std::end(m_output_clear), false);
// loop over inputs
for (int inputnum = 0; inputnum < m_auto_allocated_inputs; inputnum++)
{
// skip if the gain is 0
var input = inputs[inputnum];
if (input.gain() == 0)
{
continue;
}
// either store or accumulate
int outputnum = m_outputmap[inputnum];
var output = outputs[outputnum];
if (!m_output_clear[outputnum])
{
output.copy(input);
}
else
{
output.add(input);
}
m_output_clear[outputnum] = true;
}
// clear anything unused
for (int outputnum = 0; outputnum < m_outputs; outputnum++)
{
if (!m_output_clear[outputnum])
{
outputs[outputnum].fill(0);
}
}
}
