internal NoiseChannel(Memory memory, FrameSequencer frameSequencer,
int sampleRate, int numChannels,
int sampleSize, int channelIndex)
{
_memory = memory;
_frameSequencer = frameSequencer;
SampleRate = sampleRate;
_msSampleRate = SampleRate / 1000;
NumChannels = numChannels;
SampleSize = sampleSize;
_buffer = new short[SampleRate * NumChannels * SampleSize * _milliseconds / 1000];
_channelIndex = channelIndex;
_soundEventQueue = new SoundEventQueue(1000);
}
internal NoiseChannel(Memory memory, FrameSequencer frameSequencer,
int sampleRate, int numChannels,
int sampleSize, int channelIndex)
{
_memory = memory;
_frameSequencer = frameSequencer;
SampleRate = sampleRate;
_msSampleRate = SampleRate / 1000;
NumChannels = numChannels;
SampleSize = sampleSize;
_buffer = new short[SampleRate * NumChannels * SampleSize * _milliseconds / 1000];
_channelIndex = channelIndex;
_soundEventQueue = new SoundEventQueue(1000);
}
internal SquareChannel(Memory memory, FrameSequencer frameSequencer,
int sampleRate, int numChannels, int sampleSize, int channelIndex,
MMR sweepRegister, MMR wavePatternDutyRegister, MMR volumeEnvelopeRegister,
MMR freqLowRegister, MMR freqHighRegister)
{
_memory = memory;
_frameSequencer = frameSequencer;
SampleRate = sampleRate;
_msSampleRate = SampleRate / 1000;
NumChannels = numChannels;
SampleSize = sampleSize;
_buffer = new short[SampleRate * NumChannels * SampleSize * _milliseconds / 1000];
_channelIndex = channelIndex;
_soundEventQueue = new SoundEventQueue(1000);
// Register setup
_sweepRegister = sweepRegister;
_wavePatternDutyRegister = wavePatternDutyRegister;
_volumeEnvelopeRegister = volumeEnvelopeRegister;
_freqLowRegister = freqLowRegister;
_freqHighRegister = freqHighRegister;
}
internal SquareChannel(Memory memory, FrameSequencer frameSequencer,
int sampleRate, int numChannels, int sampleSize, int channelIndex,
MMR sweepRegister, MMR wavePatternDutyRegister, MMR volumeEnvelopeRegister,
MMR freqLowRegister, MMR freqHighRegister)
{
_memory = memory;
_frameSequencer = frameSequencer;
SampleRate = sampleRate;
_msSampleRate = SampleRate / 1000;
NumChannels = numChannels;
SampleSize = sampleSize;
_buffer = new short[SampleRate * NumChannels * SampleSize * _milliseconds / 1000];
_channelIndex = channelIndex;
_soundEventQueue = new SoundEventQueue(1000);
// Register setup
_sweepRegister = sweepRegister;
_wavePatternDutyRegister = wavePatternDutyRegister;
_volumeEnvelopeRegister = volumeEnvelopeRegister;
_freqLowRegister = freqLowRegister;
_freqHighRegister = freqHighRegister;
}
internal void Reset()
{
// Wav exporter
if ((_wavExporter != null))
{
// We stop recording just in case
StopRecording();
}
else
{
_wavExporter = new WavExporter();
_channel1WavExporter = new WavExporter();
_channel2WavExporter = new WavExporter();
_channel3WavExporter = new WavExporter();
_channel4WavExporter = new WavExporter();
}
_frameSequencer = new FrameSequencer();
// We setup the channels
_channel1 = new SquareChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 0,
MMR.NR10, MMR.NR11, MMR.NR12, MMR.NR13, MMR.NR14);
// NOTE(Cristian): Channel 2 doesn't have frequency sweep
_channel2 = new SquareChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 1,
0, MMR.NR21, MMR.NR22, MMR.NR23, MMR.NR24);
_channel3 = new WaveChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 2);
_channel4 = new NoiseChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 3);
_state.LeftChannelEnabled = true;
_state.RightChannelEnabled = true;
Channel1Run = true;
Channel2Run = true;
Channel3Run = true;
Channel4Run = true;
_memory.LowLevelWrite((ushort)MMR.NR10, 0x80);
_memory.LowLevelWrite((ushort)MMR.NR11, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR12, 0xF3);
_memory.LowLevelWrite((ushort)MMR.NR13, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR14, 0xBF);
_memory.LowLevelWrite(0xFF15, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR21, 0x3F);
_memory.LowLevelWrite((ushort)MMR.NR22, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR23, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR24, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR30, 0x7F);
_memory.LowLevelWrite((ushort)MMR.NR31, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR32, 0x9F);
_memory.LowLevelWrite((ushort)MMR.NR33, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR34, 0xBF); // No info
_memory.LowLevelWrite(0xFF1F, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR41, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR42, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR43, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR44, 0xBF); // No info
_memory.LowLevelWrite((ushort)MMR.NR50, 0x77);
_memory.LowLevelWrite((ushort)MMR.NR51, 0xF3);
_memory.LowLevelWrite((ushort)MMR.NR52, 0xF1);
// We fill 0xFF27-0xFF2F with 0xFF
for (ushort r = 0xFF27; r <= 0xFF2F; ++r)
{
_memory.LowLevelWrite(r, 0xFF);
}
_buffer = new byte[_sampleRate * _numChannels * _sampleSize * _milliseconds / 1000];
}
internal void Reset()
{
// Wav exporter
if ((_wavExporter != null))
{
// We stop recording just in case
StopRecording();
}
else
{
_wavExporter = new WavExporter();
_channel1WavExporter = new WavExporter();
_channel2WavExporter = new WavExporter();
_channel3WavExporter = new WavExporter();
_channel4WavExporter = new WavExporter();
}
_frameSequencer = new FrameSequencer();
// We setup the channels
_channel1 = new SquareChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 0,
MMR.NR10, MMR.NR11, MMR.NR12, MMR.NR13, MMR.NR14);
// NOTE(Cristian): Channel 2 doesn't have frequency sweep
_channel2 = new SquareChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 1,
0, MMR.NR21, MMR.NR22, MMR.NR23, MMR.NR24);
_channel3 = new WaveChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 2);
_channel4 = new NoiseChannel(_memory, _frameSequencer,
SampleRate, NumChannels, SampleSize, 3);
_state.LeftChannelEnabled = true;
_state.RightChannelEnabled = true;
Channel1Run = true;
Channel2Run = true;
Channel3Run = true;
Channel4Run = true;
_memory.LowLevelWrite((ushort)MMR.NR10, 0x80);
_memory.LowLevelWrite((ushort)MMR.NR11, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR12, 0xF3);
_memory.LowLevelWrite((ushort)MMR.NR13, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR14, 0xBF);
_memory.LowLevelWrite(0xFF15, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR21, 0x3F);
_memory.LowLevelWrite((ushort)MMR.NR22, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR23, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR24, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR30, 0x7F);
_memory.LowLevelWrite((ushort)MMR.NR31, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR32, 0x9F);
_memory.LowLevelWrite((ushort)MMR.NR33, 0xBF);
_memory.LowLevelWrite((ushort)MMR.NR34, 0xBF); // No info
_memory.LowLevelWrite(0xFF1F, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR41, 0xFF);
_memory.LowLevelWrite((ushort)MMR.NR42, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR43, 0x00);
_memory.LowLevelWrite((ushort)MMR.NR44, 0xBF); // No info
_memory.LowLevelWrite((ushort)MMR.NR50, 0x77);
_memory.LowLevelWrite((ushort)MMR.NR51, 0xF3);
_memory.LowLevelWrite((ushort)MMR.NR52, 0xF1);
// We fill 0xFF27-0xFF2F with 0xFF
for (ushort r = 0xFF27; r <= 0xFF2F; ++r)
{
_memory.LowLevelWrite(r, 0xFF);
}
_buffer = new byte[_sampleRate * _numChannels * _sampleSize * _milliseconds / 1000];
}
