public static void InitAndReset(int apuIdx, int sampleRate, bool pal, int expansion, int numExpansionChannels, [MarshalAs(UnmanagedType.FunctionPtr)] DmcReadDelegate dmcCallback)
{
Init(apuIdx, sampleRate, pal ? 1 : 0, expansion, dmcCallback);
Reset(apuIdx);
WriteRegister(apuIdx, APU_SND_CHN, 0x0f); // enable channels, stop DMC
WriteRegister(apuIdx, APU_TRI_LINEAR, 0x80); // disable triangle length counter
WriteRegister(apuIdx, APU_NOISE_HI, 0x00); // load noise length
WriteRegister(apuIdx, APU_PL1_VOL, 0x30); // volumes to 0
WriteRegister(apuIdx, APU_PL2_VOL, 0x30);
WriteRegister(apuIdx, APU_NOISE_VOL, 0x30);
WriteRegister(apuIdx, APU_PL1_SWEEP, 0x08); // no sweep
WriteRegister(apuIdx, APU_PL2_SWEEP, 0x08);
var apuSettings = Settings.ExpansionMixerSettings[NesApu.APU_EXPANSION_NONE];
var expSettings = Settings.ExpansionMixerSettings[expansion];
TrebleEq(apuIdx, NesApu.APU_EXPANSION_NONE, apuSettings.treble, sampleRate);
SetExpansionVolume(apuIdx, NesApu.APU_EXPANSION_NONE, Utils.DbToAmplitude(apuSettings.volume));
if (expansion != APU_EXPANSION_NONE)
{
TrebleEq(apuIdx, expansion, expSettings.treble, sampleRate);
SetExpansionVolume(apuIdx, expansion, Utils.DbToAmplitude(expSettings.volume));
}
switch (expansion)
{
case APU_EXPANSION_VRC6:
WriteRegister(apuIdx, VRC6_CTRL, 0x00); // No halt, no octave change
break;
case APU_EXPANSION_FDS:
break;
case APU_EXPANSION_MMC5:
WriteRegister(apuIdx, MMC5_PL1_VOL, 0x10);
WriteRegister(apuIdx, MMC5_PL2_VOL, 0x10);
WriteRegister(apuIdx, MMC5_SND_CHN, 0x03); // Enable both square channels.
break;
case APU_EXPANSION_VRC7:
WriteRegister(apuIdx, VRC7_SILENCE, 0x00); // Enable VRC7 audio.
break;
case APU_EXPANSION_NAMCO:
// This is mainly because the instrument player might not update all the channels all the time.
WriteRegister(apuIdx, N163_ADDR, N163_REG_VOLUME);
WriteRegister(apuIdx, N163_DATA, (numExpansionChannels - 1) << 4);
break;
case APU_EXPANSION_SUNSOFT:
WriteRegister(apuIdx, S5B_ADDR, S5B_REG_TONE);
WriteRegister(apuIdx, S5B_DATA, 0x38); // No noise, just 3 tones for now.
break;
}
}
public static void InitAndReset(int apuIdx, int sampleRate, bool pal, int seperateTndMode, int expansions, int numNamcoChannels, [MarshalAs(UnmanagedType.FunctionPtr)] DmcReadDelegate dmcCallback)
{
Init(apuIdx, sampleRate, pal ? 1 : 0, seperateTndMode, expansions, dmcCallback);
Reset(apuIdx);
WriteRegister(apuIdx, APU_SND_CHN, 0x0f); // enable channels, stop DMC
WriteRegister(apuIdx, APU_TRI_LINEAR, 0x80); // disable triangle length counter
WriteRegister(apuIdx, APU_NOISE_HI, 0x00); // load noise length
WriteRegister(apuIdx, APU_PL1_VOL, 0x30); // volumes to 0
WriteRegister(apuIdx, APU_PL2_VOL, 0x30);
WriteRegister(apuIdx, APU_NOISE_VOL, 0x30);
WriteRegister(apuIdx, APU_PL1_SWEEP, 0x08); // no sweep
WriteRegister(apuIdx, APU_PL2_SWEEP, 0x08);
var apuSettings = Settings.ExpansionMixerSettings[NesApu.APU_EXPANSION_NONE];
TrebleEq(apuIdx, NesApu.APU_EXPANSION_NONE, apuSettings.treble, sampleRate);
SetExpansionVolume(apuIdx, NesApu.APU_EXPANSION_NONE, Utils.DbToAmplitude(apuSettings.volume + Settings.GlobalVolume));
if (expansions != APU_EXPANSION_MASK_NONE)
{
for (int expansion = APU_EXPANSION_FIRST; expansion <= APU_EXPANSION_LAST; expansion++)
{
if ((expansions & ExpansionToMask(expansion)) != 0)
{
var expSettings = Settings.ExpansionMixerSettings[expansion];
TrebleEq(apuIdx, expansion, expSettings.treble, sampleRate);
SetExpansionVolume(apuIdx, expansion, Utils.DbToAmplitude(expSettings.volume + Settings.GlobalVolume));
switch (expansion)
{
case APU_EXPANSION_VRC6:
WriteRegister(apuIdx, VRC6_CTRL, 0x00); // No halt, no octave change
break;
case APU_EXPANSION_FDS:
break;
case APU_EXPANSION_MMC5:
WriteRegister(apuIdx, MMC5_PL1_VOL, 0x10);
WriteRegister(apuIdx, MMC5_PL2_VOL, 0x10);
WriteRegister(apuIdx, MMC5_SND_CHN, 0x03); // Enable both square channels.
break;
case APU_EXPANSION_VRC7:
// HACK : There is a conflict between the VRC7 silence register and S5B data register, a write to
// the silence register (E000) will be interpreted as a S5B data write. To prevent this, we
// select a dummy register for S5B so that the write is discarded.
if ((expansions & APU_EXPANSION_MASK_SUNSOFT) != 0)
{
WriteRegister(apuIdx, S5B_ADDR, S5B_REG_IO_A);
}
WriteRegister(apuIdx, VRC7_SILENCE, 0x00); // Enable VRC7 audio.
break;
case APU_EXPANSION_NAMCO:
// This is mainly because the instrument player might not update all the channels all the time.
WriteRegister(apuIdx, N163_ADDR, N163_REG_VOLUME);
WriteRegister(apuIdx, N163_DATA, (numNamcoChannels - 1) << 4);
break;
case APU_EXPANSION_SUNSOFT:
WriteRegister(apuIdx, S5B_ADDR, S5B_REG_TONE);
WriteRegister(apuIdx, S5B_DATA, 0x38); // No noise, just 3 tones for now.
break;
}
}
}
}
}