diff --git a/CMakeLists.txt b/CMakeLists.txt index 0f6942bbc..44e751627 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -516,6 +516,8 @@ src/engine/platform/sound/nes/mmc5.c src/engine/platform/sound/vera_psg.c src/engine/platform/sound/vera_pcm.c +src/engine/platform/sound/nes_nsfplay/5e01_apu.cpp +src/engine/platform/sound/nes_nsfplay/5e01_dmc.cpp src/engine/platform/sound/nes_nsfplay/nes_apu.cpp src/engine/platform/sound/nes_nsfplay/nes_dmc.cpp src/engine/platform/sound/nes_nsfplay/nes_fds.cpp diff --git a/src/engine/platform/nes.cpp b/src/engine/platform/nes.cpp index d8dfba3d6..6ccfb5c11 100644 --- a/src/engine/platform/nes.cpp +++ b/src/engine/platform/nes.cpp @@ -64,8 +64,13 @@ const char** DivPlatformNES::getRegisterSheet() { void DivPlatformNES::doWrite(unsigned short addr, unsigned char data) { if (useNP) { - nes1_NP->Write(addr,data); - nes2_NP->Write(addr,data); + if (isE) { + e1_NP->Write(addr,data); + e2_NP->Write(addr,data); + } else { + nes1_NP->Write(addr,data); + nes2_NP->Write(addr,data); + } } else { apu_wr_reg(nes,addr,data); } @@ -151,9 +156,40 @@ void DivPlatformNES::acquire_NSFPlay(short** buf, size_t len) { } } +void DivPlatformNES::acquire_NSFPlayE(short** buf, size_t len) { + int out1[2]; + int out2[2]; + for (size_t i=0; iTick(8); + e2_NP->TickFrameSequence(8); + e2_NP->Tick(8); + e1_NP->Render(out1); + e2_NP->Render(out2); + + int sample=(out1[0]+out1[1]+out2[0]+out2[1])<<1; + if (sample>32767) sample=32767; + if (sample<-32768) sample=-32768; + buf[0][i]=sample; + if (++writeOscBuf>=4) { + writeOscBuf=0; + oscBuf[0]->data[oscBuf[0]->needle++]=e1_NP->out[0]<<11; + oscBuf[1]->data[oscBuf[1]->needle++]=e1_NP->out[1]<<11; + oscBuf[2]->data[oscBuf[2]->needle++]=e2_NP->out[0]<<11; + oscBuf[3]->data[oscBuf[3]->needle++]=e2_NP->out[1]<<11; + oscBuf[4]->data[oscBuf[4]->needle++]=e2_NP->out[2]<<8; + } + } +} + void DivPlatformNES::acquire(short** buf, size_t len) { if (useNP) { - acquire_NSFPlay(buf,len); + if (isE) { + acquire_NSFPlayE(buf,len); + } else { + acquire_NSFPlay(buf,len); + } } else { acquire_puNES(buf,len); } @@ -242,6 +278,8 @@ void DivPlatformNES::tick(bool sysTick) { } if (i!=2) { rWrite(0x4000+i*4,(chan[i].envMode<<4)|chan[i].outVol|((chan[i].duty&3)<<6)); + } else if (isE) { + rWrite(0x4000+9,chan[i].duty); } if (i==3) { // noise chan[i].freqChanged=true; @@ -279,7 +317,9 @@ void DivPlatformNES::tick(bool sysTick) { } } ntPos+=chan[i].pitch2; - if (parent->song.properNoiseLayout) { + if (isE) { + chan[i].freq=31-(ntPos&31); + } else if (parent->song.properNoiseLayout) { chan[i].freq=15-(ntPos&15); } else { if (ntPos<0) ntPos=0; @@ -678,8 +718,13 @@ int DivPlatformNES::dispatch(DivCommand c) { void DivPlatformNES::muteChannel(int ch, bool mute) { isMuted[ch]=mute; if (useNP) { - nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); - nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + if (isE) { + e1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); + e2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + } else { + nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); + nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + } } else { nes->muted[ch]=mute; } @@ -743,10 +788,17 @@ void DivPlatformNES::reset() { linearCount=255; if (useNP) { - nes1_NP->Reset(); - nes2_NP->Reset(); - nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); - nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + if (isE) { + e1_NP->Reset(); + e2_NP->Reset(); + e1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); + e2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + } else { + nes1_NP->Reset(); + nes2_NP->Reset(); + nes1_NP->SetMask(((int)isMuted[0])|(isMuted[1]<<1)); + nes2_NP->SetMask(((int)isMuted[2])|(isMuted[3]<<1)|(isMuted[4]<<2)); + } } else { apu_turn_on(nes,apuType); nes->apu.cpu_cycles=0; @@ -779,11 +831,19 @@ void DivPlatformNES::setFlags(const DivConfig& flags) { apuType=0; } if (useNP) { - nes1_NP->SetClock(rate); - nes1_NP->SetRate(rate); - nes2_NP->SetClock(rate); - nes2_NP->SetRate(rate); - nes2_NP->SetPal(apuType==1); + if (isE) { + e1_NP->SetClock(rate); + e1_NP->SetRate(rate); + e2_NP->SetClock(rate); + e2_NP->SetRate(rate); + e2_NP->SetPal(apuType==1); + } else { + nes1_NP->SetClock(rate); + nes1_NP->SetRate(rate); + nes2_NP->SetClock(rate); + nes2_NP->SetRate(rate); + nes2_NP->SetPal(apuType==1); + } } else { nes->apu.type=apuType; } @@ -819,6 +879,8 @@ void DivPlatformNES::setNSFPlay(bool use) { void DivPlatformNES::set5E01(bool use) { isE=use; + // for now + if (isE) useNP=true; } unsigned char DivPlatformNES::readDMC(unsigned short addr) { @@ -897,14 +959,25 @@ int DivPlatformNES::init(DivEngine* p, int channels, int sugRate, const DivConfi dumpWrites=false; skipRegisterWrites=false; if (useNP) { - nes1_NP=new xgm::NES_APU; - nes1_NP->SetOption(xgm::NES_APU::OPT_NONLINEAR_MIXER,1); - nes2_NP=new xgm::NES_DMC; - nes2_NP->SetOption(xgm::NES_DMC::OPT_NONLINEAR_MIXER,1); - nes2_NP->SetMemory([this](unsigned short addr, unsigned int& data) { - data=readDMC(addr); - }); - nes2_NP->SetAPU(nes1_NP); + if (isE) { + e1_NP=new xgm::I5E01_APU; + e1_NP->SetOption(xgm::I5E01_APU::OPT_NONLINEAR_MIXER,1); + e2_NP=new xgm::I5E01_DMC; + e2_NP->SetOption(xgm::I5E01_DMC::OPT_NONLINEAR_MIXER,1); + e2_NP->SetMemory([this](unsigned short addr, unsigned int& data) { + data=readDMC(addr); + }); + e2_NP->SetAPU(e1_NP); + } else { + nes1_NP=new xgm::NES_APU; + nes1_NP->SetOption(xgm::NES_APU::OPT_NONLINEAR_MIXER,1); + nes2_NP=new xgm::NES_DMC; + nes2_NP->SetOption(xgm::NES_DMC::OPT_NONLINEAR_MIXER,1); + nes2_NP->SetMemory([this](unsigned short addr, unsigned int& data) { + data=readDMC(addr); + }); + nes2_NP->SetAPU(nes1_NP); + } } else { nes=new struct NESAPU; nes->readDMC=_readDMC; @@ -933,8 +1006,13 @@ void DivPlatformNES::quit() { delete oscBuf[i]; } if (useNP) { - delete nes1_NP; - delete nes2_NP; + if (isE) { + delete e1_NP; + delete e2_NP; + } else { + delete nes1_NP; + delete nes2_NP; + } } else { delete nes; } diff --git a/src/engine/platform/nes.h b/src/engine/platform/nes.h index aaebb4d84..470ab7719 100644 --- a/src/engine/platform/nes.h +++ b/src/engine/platform/nes.h @@ -23,6 +23,7 @@ #include "../dispatch.h" #include "sound/nes_nsfplay/nes_apu.h" +#include "sound/nes_nsfplay/5e01_apu.h" class DivPlatformNES: public DivDispatch { struct Channel: public SharedChannel { @@ -66,6 +67,8 @@ class DivPlatformNES: public DivDispatch { struct NESAPU* nes; xgm::NES_APU* nes1_NP; xgm::NES_DMC* nes2_NP; + xgm::I5E01_APU* e1_NP; + xgm::I5E01_DMC* e2_NP; unsigned char regPool[128]; unsigned int sampleOffDPCM[256]; DivMemoryComposition memCompo; @@ -77,6 +80,7 @@ class DivPlatformNES: public DivDispatch { unsigned char calcDPCMRate(int inRate); void acquire_puNES(short** buf, size_t len); void acquire_NSFPlay(short** buf, size_t len); + void acquire_NSFPlayE(short** buf, size_t len); public: void acquire(short** buf, size_t len); diff --git a/src/engine/platform/sound/nes_nsfplay/5e01_apu.cpp b/src/engine/platform/sound/nes_nsfplay/5e01_apu.cpp new file mode 100644 index 000000000..01cca33f0 --- /dev/null +++ b/src/engine/platform/sound/nes_nsfplay/5e01_apu.cpp @@ -0,0 +1,401 @@ +// +// I5E01 2A03 +// +#include +#include "5e01_apu.h" +#include "common.h" + +namespace xgm +{ + void I5E01_APU::sweep_sqr(int i) + { + int shifted = freq[i] >> sweep_amount[i]; + if (i == 0 && sweep_mode[i]) shifted += 1; + sfreq[i] = freq[i] + (sweep_mode[i] ? -shifted : shifted); + //DEBUG_OUT("shifted[%d] = %d (%d >> %d)\n",i,shifted,freq[i],sweep_amount[i]); + } + + void I5E01_APU::FrameSequence(int s) + { + //DEBUG_OUT("FrameSequence(%d)\n",s); + + if (s > 3) return; // no operation in step 4 + + // 240hz clock + for (int i = 0; i < 2; ++i) + { + bool divider = false; + if (envelope_write[i]) + { + envelope_write[i] = false; + envelope_counter[i] = 15; + envelope_div[i] = 0; + } + else + { + ++envelope_div[i]; + if (envelope_div[i] > envelope_div_period[i]) + { + divider = true; + envelope_div[i] = 0; + } + } + if (divider) + { + if (envelope_loop[i] && envelope_counter[i] == 0) + envelope_counter[i] = 15; + else if (envelope_counter[i] > 0) + --envelope_counter[i]; + } + } + + // 120hz clock + if ((s & 1) == 0) + for (int i = 0; i < 2; ++i) + { + if (!envelope_loop[i] && (length_counter[i] > 0)) + --length_counter[i]; + + if (sweep_enable[i]) + { + //DEBUG_OUT("Clock sweep: %d\n", i); + + --sweep_div[i]; + if (sweep_div[i] <= 0) + { + sweep_sqr(i); // calculate new sweep target + + //DEBUG_OUT("sweep_div[%d] (0/%d)\n",i,sweep_div_period[i]); + //DEBUG_OUT("freq[%d]=%d > sfreq[%d]=%d\n",i,freq[i],i,sfreq[i]); + + if (freq[i] >= 8 && sfreq[i] < 0x800 && sweep_amount[i] > 0) // update frequency if appropriate + { + freq[i] = sfreq[i] < 0 ? 0 : sfreq[i]; + } + sweep_div[i] = sweep_div_period[i] + 1; + + //DEBUG_OUT("freq[%d]=%d\n",i,freq[i]); + } + + if (sweep_write[i]) + { + sweep_div[i] = sweep_div_period[i] + 1; + sweep_write[i] = false; + } + } + } + + } + + int I5E01_APU::calc_sqr(int i, unsigned int clocks) + { + static const short sqrtbl[4][16] = { + {0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0}, + {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0} + }; + + scounter[i] -= clocks; + while (scounter[i] < 0) + { + sphase[i] = (sphase[i] + 1) & 15; + scounter[i] += freq[i] + 1; + } + + int ret = 0; + if (length_counter[i] > 0 && + freq[i] >= 8 && + sfreq[i] < 0x800 + ) + { + int v = envelope_disable[i] ? volume[i] : envelope_counter[i]; + ret = sqrtbl[duty[i]][sphase[i]] ? v : 0; + } + + return ret; + } + + bool I5E01_APU::Read(unsigned int adr, unsigned int& val, unsigned int id) + { + if (0x4100 <= adr && adr < 0x4108) + { + val |= reg[adr & 0x7]; + return true; + } + else if (adr == 0x4115) + { + val |= (length_counter[1] ? 2 : 0) | (length_counter[0] ? 1 : 0); + return true; + } + else + return false; + } + + void I5E01_APU::Tick(unsigned int clocks) + { + out[0] = calc_sqr(0, clocks); + out[1] = calc_sqr(1, clocks); + } + + // 生成される波形の振幅は0-8191 + unsigned int I5E01_APU::Render(int b[2]) + { + out[0] = (mask & 1) ? 0 : out[0]; + out[1] = (mask & 2) ? 0 : out[1]; + + int m[2]; + + if (option[OPT_NONLINEAR_MIXER]) + { + int voltage = square_table[out[0] + out[1]]; + m[0] = out[0] << 6; + m[1] = out[1] << 6; + int ref = m[0] + m[1]; + if (ref > 0) + { + m[0] = (m[0] * voltage) / ref; + m[1] = (m[1] * voltage) / ref; + } + else + { + m[0] = voltage; + m[1] = voltage; + } + } + else + { + m[0] = (out[0] * square_linear) / 15; + m[1] = (out[1] * square_linear) / 15; + } + + b[0] = m[0] * sm[0][0]; + b[0] += m[1] * sm[0][1]; + b[0] >>= 7; + + b[1] = m[0] * sm[1][0]; + b[1] += m[1] * sm[1][1]; + b[1] >>= 7; + + return 2; + } + + I5E01_APU::I5E01_APU() + { + SetClock(DEFAULT_CLOCK); + SetRate(DEFAULT_RATE); + option[OPT_UNMUTE_ON_RESET] = true; + option[OPT_PHASE_REFRESH] = true; + option[OPT_NONLINEAR_MIXER] = true; + option[OPT_DUTY_SWAP] = false; + option[OPT_NEGATE_SWEEP_INIT] = false; + + square_table[0] = 0; + for (int i = 1;i < 32;i++) + square_table[i] = (int)((8192.0 * 95.88) / (8128.0 / i + 100)); + + square_linear = square_table[15]; // match linear scale to one full volume square of nonlinear + + for (int c = 0;c < 2;++c) + for (int t = 0;t < 2;++t) + sm[c][t] = 128; + } + + I5E01_APU::~I5E01_APU() + { + } + + void I5E01_APU::Reset() + { + int i; + gclock = 0; + mask = 0; + + for (int i = 0; i < 2; ++i) + { + scounter[i] = 0; + sphase[i] = 0; + duty[i] = 0; + volume[i] = 0; + freq[i] = 0; + sfreq[i] = 0; + sweep_enable[i] = 0; + sweep_mode[i] = 0; + sweep_write[i] = 0; + sweep_div_period[i] = 0; + sweep_div[i] = 1; + sweep_amount[i] = 0; + envelope_disable[i] = 0; + envelope_loop[i] = 0; + envelope_write[i] = 0; + envelope_div_period[i] = 0; + envelope_div[0] = 0; + envelope_counter[i] = 0; + length_counter[i] = 0; + enable[i] = 0; + } + + for (i = 0x4100; i < 0x4108; i++) + Write(i, 0); + + Write(0x4115, 0); + if (option[OPT_UNMUTE_ON_RESET]) + Write(0x4115, 0x0f); + if (option[OPT_NEGATE_SWEEP_INIT]) + { + Write(0x4101, 0x08); + Write(0x4105, 0x08); + } + + for (i = 0; i < 2; i++) + out[i] = 0; + + SetRate(rate); + } + + void I5E01_APU::SetOption(int id, int val) + { + if (id < OPT_END) option[id] = val; + } + + void I5E01_APU::SetClock(double c) + { + clock = c; + } + + void I5E01_APU::SetRate(double r) + { + rate = r ? r : DEFAULT_RATE; + } + + void I5E01_APU::SetStereoMix(int trk, short mixl, short mixr) + { + if (trk < 0) return; + if (trk > 1) return; + sm[0][trk] = mixl; + sm[1][trk] = mixr; + } + + double I5E01_APU::GetFrequencyPulse1() const // // !! + { + if (!(length_counter[0] > 0 && + freq[0] >= 8 && + sfreq[0] < 0x800)) + return 0.0; + return clock / 16 / (freq[0] + 1); + } + + double I5E01_APU::GetFrequencyPulse2() const // // !! + { + if (!(length_counter[1] > 0 && + freq[1] >= 8 && + sfreq[1] < 0x800)) + return 0.0; + return clock / 16 / (freq[1] + 1); + } + + bool I5E01_APU::Write(unsigned int adr, unsigned int val, unsigned int id) + { + int ch; + + // hack + adr+=0x100; + + static const unsigned char length_table[32] = { + 0x0A, 0xFE, + 0x14, 0x02, + 0x28, 0x04, + 0x50, 0x06, + 0xA0, 0x08, + 0x3C, 0x0A, + 0x0E, 0x0C, + 0x1A, 0x0E, + 0x0C, 0x10, + 0x18, 0x12, + 0x30, 0x14, + 0x60, 0x16, + 0xC0, 0x18, + 0x48, 0x1A, + 0x10, 0x1C, + 0x20, 0x1E + }; + + if (0x4100 <= adr && adr < 0x4108) + { + //DEBUG_OUT("$%04X = %02X\n",adr,val); + + adr &= 0xf; + ch = adr >> 2; + switch (adr) + { + case 0x0: + case 0x4: + volume[ch] = val & 15; + envelope_disable[ch] = (val >> 4) & 1; + envelope_loop[ch] = (val >> 5) & 1; + envelope_div_period[ch] = (val & 15); + duty[ch] = (val >> 6) & 3; + if (option[OPT_DUTY_SWAP]) + { + if (duty[ch] == 1) duty[ch] = 2; + else if (duty[ch] == 2) duty[ch] = 1; + } + break; + + case 0x1: + case 0x5: + sweep_enable[ch] = (val >> 7) & 1; + sweep_div_period[ch] = (((val >> 4) & 7)); + sweep_mode[ch] = (val >> 3) & 1; + sweep_amount[ch] = val & 7; + sweep_write[ch] = true; + sweep_sqr(ch); + break; + + case 0x2: + case 0x6: + freq[ch] = val | (freq[ch] & 0x700); + sweep_sqr(ch); + break; + + case 0x3: + case 0x7: + freq[ch] = (freq[ch] & 0xFF) | ((val & 0x7) << 8); + if (option[OPT_PHASE_REFRESH]) + sphase[ch] = 0; + envelope_write[ch] = true; + if (enable[ch]) + { + length_counter[ch] = length_table[(val >> 3) & 0x1f]; + } + sweep_sqr(ch); + break; + + default: + return false; + } + reg[adr] = val; + return true; + } + else if (adr == 0x4115) + { + enable[0] = (val & 1) ? true : false; + enable[1] = (val & 2) ? true : false; + + if (!enable[0]) + length_counter[0] = 0; + if (!enable[1]) + length_counter[1] = 0; + + reg[adr - 0x4100] = val; + return true; + } + + // 4017 is handled in nes_dmc.cpp + //else if (adr == 0x4017) + //{ + //} + + return false; + } +} // namespace xgm; diff --git a/src/engine/platform/sound/nes_nsfplay/5e01_apu.h b/src/engine/platform/sound/nes_nsfplay/5e01_apu.h new file mode 100644 index 000000000..3e42a3d11 --- /dev/null +++ b/src/engine/platform/sound/nes_nsfplay/5e01_apu.h @@ -0,0 +1,89 @@ +#ifndef _I5E01_APU_H_ +#define _I5E01_APU_H_ +#include "5e01_dmc.h" + +namespace xgm +{ + /** Upper half of APU **/ + class I5E01_APU + { + public: + enum + { + OPT_UNMUTE_ON_RESET=0, + OPT_PHASE_REFRESH, + OPT_NONLINEAR_MIXER, + OPT_DUTY_SWAP, + OPT_NEGATE_SWEEP_INIT, + OPT_END }; + + enum + { SQR0_MASK = 1, SQR1_MASK = 2, }; + + public: + int option[OPT_END]; // 各種オプション + int mask; + int sm[2][2]; + + unsigned int gclock; + unsigned char reg[0x20]; + double rate, clock; + + int square_table[32]; // nonlinear mixer + int square_linear; // linear mix approximation + + int scounter[2]; // frequency divider + int sphase[2]; // phase counter + + int duty[2]; + int volume[2]; + int freq[2]; + int sfreq[2]; + + bool sweep_enable[2]; + bool sweep_mode[2]; + bool sweep_write[2]; + int sweep_div_period[2]; + int sweep_div[2]; + int sweep_amount[2]; + + bool envelope_disable[2]; + bool envelope_loop[2]; + bool envelope_write[2]; + int envelope_div_period[2]; + int envelope_div[2]; + int envelope_counter[2]; + + int length_counter[2]; + + bool enable[2]; + + void sweep_sqr (int ch); // calculates target sweep frequency + int calc_sqr (int ch, unsigned int clocks); + + public: + int out[2]; + I5E01_APU (); + ~I5E01_APU (); + + // // !! fetch frequency directly instead of through GetTrackInfo() + double GetFrequencyPulse1() const; + double GetFrequencyPulse2() const; + + void FrameSequence(int s); + + void Reset (); + void Tick (unsigned int clocks); + unsigned int Render (int b[2]); + bool Read (unsigned int adr, unsigned int & val, unsigned int id=0); + bool Write (unsigned int adr, unsigned int val, unsigned int id=0); + void SetRate (double rate); + void SetClock (double clock); + void SetOption (int id, int b); + void SetMask(int m){ mask = m; } + void SetStereoMix (int trk, short mixl, short mixr); + }; + +} // namespace + +#endif diff --git a/src/engine/platform/sound/nes_nsfplay/5e01_dmc.cpp b/src/engine/platform/sound/nes_nsfplay/5e01_dmc.cpp new file mode 100644 index 000000000..2d961a6e7 --- /dev/null +++ b/src/engine/platform/sound/nes_nsfplay/5e01_dmc.cpp @@ -0,0 +1,732 @@ +#include "5e01_dmc.h" +#include "5e01_apu.h" + +#include "common.h" +#include +#include + +namespace xgm +{ + const unsigned int I5E01_DMC::wavlen_table[2][32] = { + { // NTSC + 4,5,6,7,9,12,15,19,23,29,37,46,58,72,91,114,142,178,222,278,348,435,544,681,851,1064,1331,1664,2081,2602,3253,4068 + }, + { // PAL + 3,4,6,7,9,12,15,18,23,29,36,45,56,70,88,110,137,171,213,266,332,414,517,644,804,1003,1251,1560,1946,2428,3028,3778 + } }; + + const unsigned int I5E01_DMC::freq_table[2][16] = { + { // NTSC + 428, 380, 340, 320, 286, 254, 226, 214, 190, 160, 142, 128, 106, 84, 72, 54 + }, + { // PAL + 398, 354, 316, 298, 276, 236, 210, 198, 176, 148, 132, 118, 98, 78, 66, 50 + } }; + + const unsigned int BITREVERSE[256] = { + 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0, + 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, + 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4, + 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, + 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, + 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, + 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6, + 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, + 0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1, + 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9, + 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, + 0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD, + 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, + 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, + 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, + 0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF, + }; + + I5E01_DMC::I5E01_DMC() : GETA_BITS(20) + { + SetClock(DEFAULT_CLOCK); + SetRate(DEFAULT_RATE); + SetPal(false); + option[OPT_ENABLE_4011] = 1; + option[OPT_ENABLE_PNOISE] = 1; + option[OPT_UNMUTE_ON_RESET] = 1; + option[OPT_DPCM_ANTI_CLICK] = 0; + option[OPT_NONLINEAR_MIXER] = 1; + option[OPT_RANDOMIZE_NOISE] = 1; + option[OPT_RANDOMIZE_TRI] = 1; + option[OPT_TRI_MUTE] = 1; + option[OPT_DPCM_REVERSE] = 0; + tnd_table[0][0][0][0] = 0; + tnd_table[1][0][0][0] = 0; + + apu = NULL; + frame_sequence_count = 0; + frame_sequence_length = 7458; + frame_sequence_steps = 4; + + for (int c = 0;c < 2;++c) + for (int t = 0;t < 3;++t) + sm[c][t] = 128; + } + + + I5E01_DMC::~I5E01_DMC() + { + } + + void I5E01_DMC::SetStereoMix(int trk, short mixl, short mixr) + { + if (trk < 0) return; + if (trk > 2) return; + sm[0][trk] = mixl; + sm[1][trk] = mixr; + } + + void I5E01_DMC::FrameSequence(int s) + { + //DEBUG_OUT("FrameSequence: %d\n",s); + + if (s > 3) return; // no operation in step 4 + + if (apu) + { + apu->FrameSequence(s); + } + + if (s == 0 && (frame_sequence_steps == 4)) + { + if (frame_irq_enable) frame_irq = true; + } + + // 240hz clock + { + // triangle linear counter + if (linear_counter_halt) + { + linear_counter = linear_counter_reload; + } + else + { + if (linear_counter > 0) --linear_counter; + } + if (!linear_counter_control) + { + linear_counter_halt = false; + } + + // noise envelope + bool divider = false; + if (envelope_write) + { + envelope_write = false; + envelope_counter = 15; + envelope_div = 0; + } + else + { + ++envelope_div; + if (envelope_div > envelope_div_period) + { + divider = true; + envelope_div = 0; + } + } + if (divider) + { + if (envelope_loop && envelope_counter == 0) + envelope_counter = 15; + else if (envelope_counter > 0) + --envelope_counter; + } + } + + // 120hz clock + if ((s & 1) == 0) + { + // triangle length counter + if (!linear_counter_control && (length_counter[0] > 0)) + --length_counter[0]; + + // noise length counter + if (!envelope_loop && (length_counter[1] > 0)) + --length_counter[1]; + } + + } + + // 三角波チャンネルの計算 戻り値は0-15 + unsigned int I5E01_DMC::calc_tri(unsigned int clocks) + { + static unsigned int wavtbl[4][32] = + { + { + 15,14,13,12,11,10, 9, 8, + 7, 6, 5, 4, 3, 2, 1, 0, + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9,10,11,12,13,14,15, + }, + { + 11,11,11,11,10,10,10,10, + 9, 9, 9, 9, 8, 8, 8, 8, + 7, 7, 7, 7, 6, 6, 6, 6, + 5, 5, 5, 5, 4, 4, 4, 4, + }, + { + 11,11,11,11,11,11,11,11, + 11,11,11,11,11,11,11,11, + 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, + }, + { + 8, 9,10,12,13,14,14,15, + 15,15,14,14,13,12,10, 9, + 8, 6, 5, 3, 2, 1, 1, 0, + 0, 0, 1, 1, 2, 3, 5, 6, + }, + }; + + if (linear_counter > 0 && length_counter[0] > 0 + && (!option[OPT_TRI_MUTE] || tri_freq > 0)) + { + counter[0] -= clocks; + while (counter[0] < 0) + { + tphase = (tphase + 1) & 31; + counter[0] += (tri_freq + 1); + } + } + + unsigned int ret = wavtbl[tduty][tphase]; + return ret; + } + + // ノイズチャンネルの計算 戻り値は0-127 + // 低サンプリングレートで合成するとエイリアスノイズが激しいので + // ノイズだけはこの関数内で高クロック合成し、簡易なサンプリングレート + // 変換を行っている。 + unsigned int I5E01_DMC::calc_noise(unsigned int clocks) + { + unsigned int env = envelope_disable ? noise_volume : envelope_counter; + if (length_counter[1] < 1) env = 0; + + unsigned int last = (noise & 0x4000) ? 0 : env; + if (clocks < 1) return last; + + // simple anti-aliasing (noise requires it, even when oversampling is off) + unsigned int count = 0; + unsigned int accum = counter[1] * last; // samples pending from previous calc + unsigned int accum_clocks = counter[1]; +#ifdef _DEBUG + int start_clocks = counter[1]; +#endif + if (counter[1] < 0) // only happens on startup when using the randomize noise option + { + accum = 0; + accum_clocks = 0; + } + + counter[1] -= clocks; + assert(nfreq > 0); // prevent infinite loop + while (counter[1] < 0) + { + // tick the noise generator + unsigned int feedback = (noise & 1) ^ ((noise & noise_tap) ? 1 : 0); + noise = (noise >> 1) | (feedback << 14); + + last = (noise & 0x4000) ? 0 : env; + accum += (last * nfreq); + counter[1] += nfreq; + ++count; + accum_clocks += nfreq; + } + + if (count < 1) // no change over interval, don't anti-alias + { + return last; + } + + accum -= (last * counter[1]); // remove these samples which belong in the next calc + accum_clocks -= counter[1]; +#ifdef _DEBUG + if (start_clocks >= 0) assert(accum_clocks == clocks); // these should be equal +#endif + + unsigned int average = accum / accum_clocks; + assert(average <= 15); // above this would indicate overflow + return average; + } + + // Tick the DMC for the number of clocks, and return output counter; + unsigned int I5E01_DMC::calc_dmc(unsigned int clocks) + { + counter[2] -= clocks; + assert(dfreq > 0); // prevent infinite loop + while (counter[2] < 0) + { + counter[2] += dfreq; + + if (data > 0x100) // data = 0x100 when shift register is empty + { + if (!empty) + { + if ((data & 1) && (damp < 63)) + damp++; + else if (!(data & 1) && (0 < damp)) + damp--; + } + data >>= 1; + } + + if (data <= 0x100) // shift register is empty + { + if (dlength > 0) + { + memory(daddress, data); + // (checking for the 3-cycle case would require sub-instruction emulation) + data &= 0xFF; // read 8 bits + if (option[OPT_DPCM_REVERSE]) data = BITREVERSE[data]; + data |= 0x10000; // use an extra bit to signal end of data + empty = false; + daddress = ((daddress + 1) & 0xFFFF) | 0x8000; + --dlength; + if (dlength == 0) + { + if (mode & 1) // looped DPCM = auto-reload + { + daddress = ((adr_reg << 6) | 0xC000); + dlength = (len_reg << 4) + 1; + } + else if (mode & 2) // IRQ and not looped + { + irq = true; + } + } + } + else + { + data = 0x10000; // DMC will do nothing + empty = true; + } + } + } + + return (damp << 1) + dac_lsb; + } + + void I5E01_DMC::TickFrameSequence(unsigned int clocks) + { + frame_sequence_count += clocks; + while (frame_sequence_count > frame_sequence_length) + { + FrameSequence(frame_sequence_step); + frame_sequence_count -= frame_sequence_length; + ++frame_sequence_step; + if (frame_sequence_step >= frame_sequence_steps) + frame_sequence_step = 0; + } + } + + void I5E01_DMC::Tick(unsigned int clocks) + { + out[0] = calc_tri(clocks); + out[1] = calc_noise(clocks); + out[2] = calc_dmc(clocks); + } + + unsigned int I5E01_DMC::Render(int b[2]) + { + out[0] = (mask & 1) ? 0 : out[0]; + out[1] = (mask & 2) ? 0 : out[1]; + out[2] = (mask & 4) ? 0 : out[2]; + + int m[3]; + m[0] = tnd_table[0][out[0]][0][0]; + m[1] = tnd_table[0][0][out[1]][0]; + m[2] = tnd_table[0][0][0][out[2]]; + + if (option[OPT_NONLINEAR_MIXER]) + { + int ref = m[0] + m[1] + m[2]; + int voltage = tnd_table[1][out[0]][out[1]][out[2]]; + if (ref) + { + for (int i = 0; i < 3; ++i) + m[i] = (m[i] * voltage) / ref; + } + else + { + for (int i = 0; i < 3; ++i) + m[i] = voltage; + } + } + + // anti-click nullifies any 4011 write but preserves nonlinearity + if (option[OPT_DPCM_ANTI_CLICK]) + { + if (dmc_pop) // $4011 will cause pop this frame + { + // adjust offset to counteract pop + dmc_pop_offset += dmc_pop_follow - m[2]; + dmc_pop = false; + + // prevent overflow, keep headspace at edges + const int OFFSET_MAX = (1 << 30) - (4 << 16); + if (dmc_pop_offset > OFFSET_MAX) dmc_pop_offset = OFFSET_MAX; + if (dmc_pop_offset < -OFFSET_MAX) dmc_pop_offset = -OFFSET_MAX; + } + dmc_pop_follow = m[2]; // remember previous position + + m[2] += dmc_pop_offset; // apply offset + + // TODO implement this in a better way + // roll off offset (not ideal, but prevents overflow) + if (dmc_pop_offset > 0) --dmc_pop_offset; + else if (dmc_pop_offset < 0) ++dmc_pop_offset; + } + + b[0] = m[0] * sm[0][0]; + b[0] += m[1] * sm[0][1]; + b[0] += m[2] * sm[0][2]; + b[0] >>= 7; + + b[1] = m[0] * sm[1][0]; + b[1] += m[1] * sm[1][1]; + b[1] += m[2] * sm[1][2]; + b[1] >>= 7; + + return 2; + } + + void I5E01_DMC::SetClock(double c) + { + clock = c; + } + + void I5E01_DMC::SetRate(double r) + { + rate = (unsigned int)(r ? r : DEFAULT_RATE); + } + + void I5E01_DMC::SetPal(bool is_pal) + { + pal = (is_pal ? 1 : 0); + // set CPU cycles in frame_sequence + frame_sequence_length = is_pal ? 8314 : 7458; + } + + void I5E01_DMC::SetAPU(I5E01_APU* apu_) + { + apu = apu_; + } + + // Initializing TRI, NOISE, DPCM mixing table + void I5E01_DMC::InitializeTNDTable(double wt, double wn, double wd) { + + // volume adjusted by 0.95 based on empirical measurements + const double MASTER = 8192.0 * 0.95; + // truthfully, the nonlinear curve does not appear to match well + // with my tests. Do more testing of the APU/DMC DAC later. + // this value keeps the triangle consistent with measured levels, + // but not necessarily the rest of this APU channel, + // because of the lack of a good DAC model, currently. + + { // Linear Mixer + for (int t = 0; t < 16; t++) { + for (int n = 0; n < 16; n++) { + for (int d = 0; d < 128; d++) { + tnd_table[0][t][n][d] = (unsigned int)(MASTER * (3.0 * t + 2.0 * n + d) / 208.0); + } + } + } + } + { // Non-Linear Mixer + tnd_table[1][0][0][0] = 0; + for (int t = 0; t < 16; t++) { + for (int n = 0; n < 16; n++) { + for (int d = 0; d < 128; d++) { + if (t != 0 || n != 0 || d != 0) + tnd_table[1][t][n][d] = (unsigned int)((MASTER * 159.79) / (100.0 + 1.0 / ((double)t / wt + (double)n / wn + (double)d / wd))); + } + } + } + } + + } + + void I5E01_DMC::Reset() + { + int i; + mask = 0; + + InitializeTNDTable(8227, 12241, 22638); + + counter[0] = 0; + counter[1] = 0; + counter[2] = 0; + tphase = 0; + tduty = 0; + nfreq = wavlen_table[0][0]; + dfreq = freq_table[0][0]; + tri_freq = 0; + linear_counter = 0; + linear_counter_reload = 0; + linear_counter_halt = 0; + linear_counter_control = 0; + noise_volume = 0; + noise = 0; + noise_tap = 0; + envelope_loop = 0; + envelope_disable = 0; + envelope_write = 0; + envelope_div_period = 0; + envelope_div = 0; + envelope_counter = 0; + enable[0] = 0; + enable[1] = 0; + length_counter[0] = 0; + length_counter[1] = 0; + frame_irq = false; + frame_irq_enable = false; + frame_sequence_count = 0; + frame_sequence_steps = 4; + frame_sequence_step = 0; + + for (i = 0; i < 0x0F; i++) + Write(0x4108 + i, 0); + Write(0x4117, 0x40); + + irq = false; + Write(0x4115, 0x00); + if (option[OPT_UNMUTE_ON_RESET]) + Write(0x4115, 0x0f); + + out[0] = out[1] = out[2] = 0; + damp = 0; + dmc_pop = false; + dmc_pop_offset = 0; + dmc_pop_follow = 0; + dac_lsb = 0; + data = 0x100; + empty = true; + adr_reg = 0; + dlength = 0; + len_reg = 0; + daddress = 0; + noise = 1; + noise_tap = (1 << 1); + + SetRate(rate); + } + + void I5E01_DMC::SetMemory(std::function r) + { + memory = r; + } + + void I5E01_DMC::SetOption(int id, int val) + { + if (id < OPT_END) + { + option[id] = val; + if (id == OPT_NONLINEAR_MIXER) + InitializeTNDTable(8227, 12241, 22638); + } + } + + bool I5E01_DMC::Write(unsigned int adr, unsigned int val, unsigned int id) + { + static const unsigned char length_table[32] = { + 0x0A, 0xFE, + 0x14, 0x02, + 0x28, 0x04, + 0x50, 0x06, + 0xA0, 0x08, + 0x3C, 0x0A, + 0x0E, 0x0C, + 0x1A, 0x0E, + 0x0C, 0x10, + 0x18, 0x12, + 0x30, 0x14, + 0x60, 0x16, + 0xC0, 0x18, + 0x48, 0x1A, + 0x10, 0x1C, + 0x20, 0x1E + }; + + // hack + adr+=0x100; + + if (adr == 0x4115) + { + enable[0] = (val & 4) ? true : false; + enable[1] = (val & 8) ? true : false; + + if (!enable[0]) + { + length_counter[0] = 0; + } + if (!enable[1]) + { + length_counter[1] = 0; + } + + if ((val & 16) && dlength == 0) + { + daddress = (0xC000 | (adr_reg << 6)); + dlength = (len_reg << 4) + 1; + } + else if (!(val & 16)) + { + dlength = 0; + } + + irq = false; + + reg[adr - 0x4108] = val; + return true; + } + + if (adr == 0x4117) + { + //DEBUG_OUT("4017 = %02X\n", val); + frame_irq_enable = ((val & 0x40) != 0x40); + if (frame_irq_enable) frame_irq = false; + + frame_sequence_count = 0; + if (val & 0x80) + { + frame_sequence_steps = 5; + frame_sequence_step = 0; + FrameSequence(frame_sequence_step); + ++frame_sequence_step; + } + else + { + frame_sequence_steps = 4; + frame_sequence_step = 1; + } + } + + if (adr < 0x4108 || 0x4113 < adr) + return false; + + reg[adr - 0x4108] = val & 0xff; + + //DEBUG_OUT("$%04X %02X\n", adr, val); + + switch (adr) + { + + // tri + + case 0x4108: + linear_counter_control = (val >> 7) & 1; + linear_counter_reload = val & 0x7F; + break; + + case 0x4109: + tduty = val & 3; + break; + + case 0x410a: + tri_freq = val | (tri_freq & 0x700); + break; + + case 0x410b: + tri_freq = (tri_freq & 0xff) | ((val & 0x7) << 8); + linear_counter_halt = true; + if (enable[0]) + { + length_counter[0] = length_table[(val >> 3) & 0x1f]; + } + break; + + // noise + + case 0x410c: + noise_volume = val & 15; + envelope_div_period = val & 15; + envelope_disable = (val >> 4) & 1; + envelope_loop = (val >> 5) & 1; + break; + + case 0x410d: + break; + + case 0x410e: + if (option[OPT_ENABLE_PNOISE]) + noise_tap = (val & 0x80) ? (1 << 6) : (1 << 1); + else + noise_tap = (1 << 1); + nfreq = wavlen_table[pal][val & 31]; + break; + + case 0x410f: + if (enable[1]) + { + length_counter[1] = length_table[(val >> 3) & 0xf]; + } + envelope_write = true; + break; + + // dmc + + case 0x4110: + mode = (val >> 6) & 3; + if (!(mode & 2)) + { + irq = false; + } + dfreq = freq_table[pal][val & 15]; + break; + + case 0x4111: + if (option[OPT_ENABLE_4011]) + { + damp = (val >> 1) & 0x3f; + dac_lsb = val & 1; + dmc_pop = true; + } + break; + + case 0x4112: + adr_reg = val & 0xff; + // ここでdaddressは更新されない + break; + + case 0x4113: + len_reg = val & 0xff; + // ここでlengthは更新されない + break; + + default: + return false; + } + + return true; + } + + bool I5E01_DMC::Read(unsigned int adr, unsigned int& val, unsigned int id) + { + if (adr == 0x4115) + { + val |= (irq ? 0x80 : 0) + | (frame_irq ? 0x40 : 0) + | ((dlength > 0) ? 0x10 : 0) + | (length_counter[1] ? 0x08 : 0) + | (length_counter[0] ? 0x04 : 0) + ; + + frame_irq = false; + return true; + } + else if (0x4108 <= adr && adr <= 0x4114) + { + val |= reg[adr - 0x4108]; + return true; + } + else + return false; + } +} // namespace diff --git a/src/engine/platform/sound/nes_nsfplay/5e01_dmc.h b/src/engine/platform/sound/nes_nsfplay/5e01_dmc.h new file mode 100644 index 000000000..2fb032900 --- /dev/null +++ b/src/engine/platform/sound/nes_nsfplay/5e01_dmc.h @@ -0,0 +1,127 @@ +#ifndef _I5E01_DMC_H_ +#define _I5E01_DMC_H_ + +#include + +namespace xgm +{ + class I5E01_APU; // forward declaration + + /** Bottom Half of APU **/ + class I5E01_DMC + { + public: + enum + { + OPT_ENABLE_4011 = 0, + OPT_ENABLE_PNOISE, + OPT_UNMUTE_ON_RESET, + OPT_DPCM_ANTI_CLICK, + OPT_NONLINEAR_MIXER, + OPT_RANDOMIZE_NOISE, + OPT_TRI_MUTE, + OPT_RANDOMIZE_TRI, + OPT_DPCM_REVERSE, + OPT_END + }; + protected: + const int GETA_BITS; + + // DPCM. + static const unsigned int freq_table[2][16]; + + // Noise. + static const unsigned int wavlen_table[2][32]; + + unsigned int tnd_table[2][16][16][128]; + + int option[OPT_END]; + int mask; + int sm[2][3]; + unsigned char reg[0x10]; + unsigned int len_reg; + unsigned int adr_reg; + std::function memory; + unsigned int daddress; + unsigned int dlength; + unsigned int data; + bool empty; + short damp; + int dac_lsb; + bool dmc_pop; + int dmc_pop_offset; + int dmc_pop_follow; + double clock; + unsigned int rate; + int pal; + int mode; + bool irq; + + int counter[3]; // frequency dividers + int tphase; // triangle phase + int tduty; // wave shape + unsigned int nfreq; // noise frequency + unsigned int dfreq; // DPCM frequency + + unsigned int tri_freq; + int linear_counter; + int linear_counter_reload; + bool linear_counter_halt; + bool linear_counter_control; + + int noise_volume; + unsigned int noise, noise_tap; + + // noise envelope + bool envelope_loop; + bool envelope_disable; + bool envelope_write; + int envelope_div_period; + int envelope_div; + int envelope_counter; + + bool enable[2]; // tri/noise enable + int length_counter[2]; // 0=tri, 1=noise + + + // frame sequencer + I5E01_APU* apu; // apu is clocked by DMC's frame sequencer + int frame_sequence_count; // current cycle count + int frame_sequence_length; // CPU cycles per FrameSequence + int frame_sequence_step; // current step of frame sequence + int frame_sequence_steps; // 4/5 steps per frame + bool frame_irq; + bool frame_irq_enable; + + inline unsigned int calc_tri(unsigned int clocks); + inline unsigned int calc_dmc(unsigned int clocks); + inline unsigned int calc_noise(unsigned int clocks); + + public: + unsigned int out[3]; + I5E01_DMC(); + ~I5E01_DMC(); + + void InitializeTNDTable(double wt, double wn, double wd); + void SetPal(bool is_pal); + void SetAPU(I5E01_APU* apu_); + void SetMemory(std::function r); + void FrameSequence(int s); + int GetDamp() { return (damp << 1) | dac_lsb; } + void TickFrameSequence(unsigned int clocks); + + void Reset(); + void Tick(unsigned int clocks); + unsigned int Render(int b[2]); + bool Write(unsigned int adr, unsigned int val, unsigned int id = 0); + bool Read(unsigned int adr, unsigned int& val, unsigned int id = 0); + void SetRate(double rate); + void SetClock(double rate); + void SetOption(int, int); + void SetMask(int m) { mask = m; } + void SetStereoMix(int trk, short mixl, short mixr); + }; + +} + +#endif