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gstreamer/gst/modplug/libmodplug/snd_fx.cpp
Jeremy Simon ac87bfc370 adding modplug 
Original commit message from CVS:
adding modplug
2002-02-28 21:10:42 +00:00

2391 lines
64 KiB
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/*
* This source code is public domain.
*
* Authors: Olivier Lapicque <olivierl@jps.net>
*/
#include "stdafx.h"
#include "sndfile.h"
#ifdef MSC_VER
#pragma warning(disable:4244)
#endif
// Tables defined in tables.cpp
extern BYTE ImpulseTrackerPortaVolCmd[16];
extern WORD S3MFineTuneTable[16];
extern WORD ProTrackerPeriodTable[6*12];
extern WORD ProTrackerTunedPeriods[15*12];
extern WORD FreqS3MTable[];
extern WORD XMPeriodTable[96+8];
extern UINT XMLinearTable[768];
extern DWORD FineLinearSlideUpTable[16];
extern DWORD FineLinearSlideDownTable[16];
extern DWORD LinearSlideUpTable[256];
extern DWORD LinearSlideDownTable[256];
extern signed char retrigTable1[16];
extern signed char retrigTable2[16];
extern short int ModRandomTable[64];
////////////////////////////////////////////////////////////
// Length
DWORD CSoundFile::GetLength(BOOL bAdjust, BOOL bTotal)
//----------------------------------------------------
{
UINT dwElapsedTime=0, nRow=0, nCurrentPattern=0, nNextPattern=0, nPattern=Order[0];
UINT nMusicSpeed=m_nDefaultSpeed, nMusicTempo=m_nDefaultTempo, nNextRow=0;
UINT nMaxRow = 0, nMaxPattern = 0;
LONG nGlbVol = m_nDefaultGlobalVolume, nOldGlbVolSlide = 0;
BYTE samples[MAX_CHANNELS];
BYTE instr[MAX_CHANNELS];
BYTE notes[MAX_CHANNELS];
BYTE vols[MAX_CHANNELS];
BYTE oldparam[MAX_CHANNELS];
BYTE chnvols[MAX_CHANNELS];
DWORD patloop[MAX_CHANNELS];
memset(instr, 0, sizeof(instr));
memset(notes, 0, sizeof(notes));
memset(vols, 0xFF, sizeof(vols));
memset(patloop, 0, sizeof(patloop));
memset(oldparam, 0, sizeof(oldparam));
memset(chnvols, 64, sizeof(chnvols));
memset(samples, 0, sizeof(samples));
for (UINT icv=0; icv<m_nChannels; icv++) chnvols[icv] = ChnSettings[icv].nVolume;
nMaxRow = m_nNextRow;
nMaxPattern = m_nNextPattern;
nCurrentPattern = nNextPattern = 0;
nPattern = Order[0];
nRow = nNextRow = 0;
for (;;)
{
UINT nSpeedCount = 0;
nRow = nNextRow;
nCurrentPattern = nNextPattern;
// Check if pattern is valid
nPattern = Order[nCurrentPattern];
while (nPattern >= MAX_PATTERNS)
{
// End of song ?
if ((nPattern == 0xFF) || (nCurrentPattern >= MAX_ORDERS))
{
goto EndMod;
} else
{
nCurrentPattern++;
nPattern = (nCurrentPattern < MAX_ORDERS) ? Order[nCurrentPattern] : 0xFF;
}
nNextPattern = nCurrentPattern;
}
// Weird stuff?
if ((nPattern >= MAX_PATTERNS) || (!Patterns[nPattern])) break;
// Should never happen
if (nRow >= PatternSize[nPattern]) nRow = 0;
// Update next position
nNextRow = nRow + 1;
if (nNextRow >= PatternSize[nPattern])
{
nNextPattern = nCurrentPattern + 1;
nNextRow = 0;
}
if (!nRow)
{
for (UINT ipck=0; ipck<m_nChannels; ipck++) patloop[ipck] = dwElapsedTime;
}
if (!bTotal)
{
if ((nCurrentPattern > nMaxPattern) || ((nCurrentPattern == nMaxPattern) && (nRow >= nMaxRow)))
{
if (bAdjust)
{
m_nMusicSpeed = nMusicSpeed;
m_nMusicTempo = nMusicTempo;
}
break;
}
}
MODCHANNEL *pChn = Chn;
MODCOMMAND *p = Patterns[nPattern] + nRow * m_nChannels;
for (UINT nChn=0; nChn<m_nChannels; p++,pChn++, nChn++) if (*((DWORD *)p))
{
UINT command = p->command;
UINT param = p->param;
UINT note = p->note;
if (p->instr) { instr[nChn] = p->instr; notes[nChn] = 0; vols[nChn] = 0xFF; }
if ((note) && (note <= 120)) notes[nChn] = note;
if (p->volcmd == VOLCMD_VOLUME) { vols[nChn] = p->vol; }
if (command) switch (command)
{
// Position Jump
case CMD_POSITIONJUMP:
if (param <= nCurrentPattern) goto EndMod;
nNextPattern = param;
nNextRow = 0;
if (bAdjust)
{
pChn->nPatternLoopCount = 0;
pChn->nPatternLoop = 0;
}
break;
// Pattern Break
case CMD_PATTERNBREAK:
nNextRow = param;
nNextPattern = nCurrentPattern + 1;
if (bAdjust)
{
pChn->nPatternLoopCount = 0;
pChn->nPatternLoop = 0;
}
break;
// Set Speed
case CMD_SPEED:
if (!param) break;
if ((param <= 0x20) || (m_nType != MOD_TYPE_MOD))
{
if (param < 128) nMusicSpeed = param;
}
break;
// Set Tempo
case CMD_TEMPO:
if ((bAdjust) && (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT)))
{
if (param) pChn->nOldTempo = param; else param = pChn->nOldTempo;
}
if (param >= 0x20) nMusicTempo = param; else
// Tempo Slide
if ((param & 0xF0) == 0x10)
{
nMusicTempo += param & 0x0F;
if (nMusicTempo > 255) nMusicTempo = 255;
} else
{
nMusicTempo -= param & 0x0F;
if (nMusicTempo < 32) nMusicTempo = 32;
}
break;
// Pattern Delay
case CMD_S3MCMDEX:
if ((param & 0xF0) == 0x60) { nSpeedCount = param & 0x0F; break; } else
if ((param & 0xF0) == 0xB0) { param &= 0x0F; param |= 0x60; }
case CMD_MODCMDEX:
if ((param & 0xF0) == 0xE0) nSpeedCount = (param & 0x0F) * nMusicSpeed; else
if ((param & 0xF0) == 0x60)
{
if (param & 0x0F) dwElapsedTime += (dwElapsedTime - patloop[nChn]) * (param & 0x0F);
else patloop[nChn] = dwElapsedTime;
}
break;
}
if (!bAdjust) continue;
switch(command)
{
// Portamento Up/Down
case CMD_PORTAMENTOUP:
case CMD_PORTAMENTODOWN:
if (param) pChn->nOldPortaUpDown = param;
break;
// Tone-Portamento
case CMD_TONEPORTAMENTO:
if (param) pChn->nPortamentoSlide = param << 2;
break;
// Offset
case CMD_OFFSET:
if (param) pChn->nOldOffset = param;
break;
// Volume Slide
case CMD_VOLUMESLIDE:
case CMD_TONEPORTAVOL:
case CMD_VIBRATOVOL:
if (param) pChn->nOldVolumeSlide = param;
break;
// Set Volume
case CMD_VOLUME:
vols[nChn] = param;
break;
// Global Volume
case CMD_GLOBALVOLUME:
if (m_nType != MOD_TYPE_IT) param <<= 1;
if (param > 128) param = 128;
nGlbVol = param << 1;
break;
// Global Volume Slide
case CMD_GLOBALVOLSLIDE:
if (param) nOldGlbVolSlide = param; else param = nOldGlbVolSlide;
if (((param & 0x0F) == 0x0F) && (param & 0xF0))
{
param >>= 4;
if (m_nType != MOD_TYPE_IT) param <<= 1;
nGlbVol += param << 1;
} else
if (((param & 0xF0) == 0xF0) && (param & 0x0F))
{
param = (param & 0x0F) << 1;
if (m_nType != MOD_TYPE_IT) param <<= 1;
nGlbVol -= param;
} else
if (param & 0xF0)
{
param >>= 4;
param <<= 1;
if (m_nType != MOD_TYPE_IT) param <<= 1;
nGlbVol += param * nMusicSpeed;
} else
{
param = (param & 0x0F) << 1;
if (m_nType != MOD_TYPE_IT) param <<= 1;
nGlbVol -= param * nMusicSpeed;
}
if (nGlbVol < 0) nGlbVol = 0;
if (nGlbVol > 256) nGlbVol = 256;
break;
case CMD_CHANNELVOLUME:
if (param <= 64) chnvols[nChn] = param;
break;
case CMD_CHANNELVOLSLIDE:
if (param) oldparam[nChn] = param; else param = oldparam[nChn];
pChn->nOldChnVolSlide = param;
if (((param & 0x0F) == 0x0F) && (param & 0xF0))
{
param = (param >> 4) + chnvols[nChn];
} else
if (((param & 0xF0) == 0xF0) && (param & 0x0F))
{
if (chnvols[nChn] > (int)(param & 0x0F)) param = chnvols[nChn] - (param & 0x0F);
else param = 0;
} else
if (param & 0x0F)
{
param = (param & 0x0F) * nMusicSpeed;
param = (chnvols[nChn] > param) ? chnvols[nChn] - param : 0;
} else param = ((param & 0xF0) >> 4) * nMusicSpeed + chnvols[nChn];
if (param > 64) param = 64;
chnvols[nChn] = param;
break;
}
}
nSpeedCount += nMusicSpeed;
dwElapsedTime += (2500 * nSpeedCount) / nMusicTempo;
}
EndMod:
if ((bAdjust) && (!bTotal))
{
m_nGlobalVolume = nGlbVol;
m_nOldGlbVolSlide = nOldGlbVolSlide;
for (UINT n=0; n<m_nChannels; n++)
{
Chn[n].nGlobalVol = chnvols[n];
if (notes[n]) Chn[n].nNewNote = notes[n];
if (instr[n]) Chn[n].nNewIns = instr[n];
if (vols[n] != 0xFF)
{
if (vols[n] > 64) vols[n] = 64;
Chn[n].nVolume = vols[n] << 2;
}
}
}
return (dwElapsedTime+500) / 1000;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// Effects
void CSoundFile::InstrumentChange(MODCHANNEL *pChn, UINT instr, BOOL bPorta, BOOL bUpdVol, BOOL bResetEnv)
//--------------------------------------------------------------------------------------------------------
{
BOOL bInstrumentChanged = FALSE;
if (instr >= MAX_INSTRUMENTS) return;
INSTRUMENTHEADER *penv = Headers[instr];
MODINSTRUMENT *psmp = &Ins[instr];
UINT note = pChn->nNewNote;
if ((penv) && (note) && (note <= 128))
{
if (penv->NoteMap[note-1] >= 0xFE) return;
UINT n = penv->Keyboard[note-1];
psmp = ((n) && (n < MAX_SAMPLES)) ? &Ins[n] : NULL;
} else
if (m_nInstruments)
{
if (note >= 0xFE) return;
psmp = NULL;
}
// Update Volume
if (bUpdVol) pChn->nVolume = (psmp) ? psmp->nVolume : 0;
// bInstrumentChanged is used for IT carry-on env option
if (penv != pChn->pHeader)
{
bInstrumentChanged = TRUE;
pChn->pHeader = penv;
} else
// Special XM hack
if ((bPorta) && (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) && (penv)
&& (pChn->pInstrument) && (psmp != pChn->pInstrument))
{
// FT2 doesn't change the sample in this case,
// but still uses the sample info from the old one (bug?)
return;
}
// Instrument adjust
pChn->nNewIns = 0;
if (psmp)
{
if (penv)
{
pChn->nInsVol = (psmp->nGlobalVol * penv->nGlobalVol) >> 6;
if (penv->dwFlags & ENV_SETPANNING) pChn->nPan = penv->nPan;
pChn->nNNA = penv->nNNA;
} else
{
pChn->nInsVol = psmp->nGlobalVol;
}
if (psmp->uFlags & CHN_PANNING) pChn->nPan = psmp->nPan;
}
// Reset envelopes
if (bResetEnv)
{
if ((!bPorta) || (!(m_nType & MOD_TYPE_IT)) || (m_dwSongFlags & SONG_ITCOMPATMODE)
|| (!pChn->nLength) || ((pChn->dwFlags & CHN_NOTEFADE) && (!pChn->nFadeOutVol)))
{
pChn->dwFlags |= CHN_FASTVOLRAMP;
if ((m_nType & MOD_TYPE_IT) && (!bInstrumentChanged) && (penv) && (!(pChn->dwFlags & (CHN_KEYOFF|CHN_NOTEFADE))))
{
if (!(penv->dwFlags & ENV_VOLCARRY)) pChn->nVolEnvPosition = 0;
if (!(penv->dwFlags & ENV_PANCARRY)) pChn->nPanEnvPosition = 0;
if (!(penv->dwFlags & ENV_PITCHCARRY)) pChn->nPitchEnvPosition = 0;
} else
{
pChn->nVolEnvPosition = 0;
pChn->nPanEnvPosition = 0;
pChn->nPitchEnvPosition = 0;
}
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
} else
if ((penv) && (!(penv->dwFlags & ENV_VOLUME)))
{
pChn->nVolEnvPosition = 0;
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
}
}
// Invalid sample ?
if (!psmp)
{
pChn->pInstrument = NULL;
pChn->nInsVol = 0;
return;
}
// Tone-Portamento doesn't reset the pingpong direction flag
if ((bPorta) && (psmp == pChn->pInstrument))
{
if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT)) return;
pChn->dwFlags &= ~(CHN_KEYOFF|CHN_NOTEFADE);
pChn->dwFlags = (pChn->dwFlags & (0xFFFFFF00 | CHN_PINGPONGFLAG)) | (psmp->uFlags);
} else
{
pChn->dwFlags &= ~(CHN_KEYOFF|CHN_NOTEFADE|CHN_VOLENV|CHN_PANENV|CHN_PITCHENV);
pChn->dwFlags = (pChn->dwFlags & 0xFFFFFF00) | (psmp->uFlags);
if (penv)
{
if (penv->dwFlags & ENV_VOLUME) pChn->dwFlags |= CHN_VOLENV;
if (penv->dwFlags & ENV_PANNING) pChn->dwFlags |= CHN_PANENV;
if (penv->dwFlags & ENV_PITCH) pChn->dwFlags |= CHN_PITCHENV;
if ((penv->dwFlags & ENV_PITCH) && (penv->dwFlags & ENV_FILTER))
{
if (!pChn->nCutOff) pChn->nCutOff = 0x7F;
}
if (penv->nIFC & 0x80) pChn->nCutOff = penv->nIFC & 0x7F;
if (penv->nIFR & 0x80) pChn->nResonance = penv->nIFR & 0x7F;
}
pChn->nVolSwing = pChn->nPanSwing = 0;
}
pChn->pInstrument = psmp;
pChn->nLength = psmp->nLength;
pChn->nLoopStart = psmp->nLoopStart;
pChn->nLoopEnd = psmp->nLoopEnd;
pChn->nC4Speed = psmp->nC4Speed;
pChn->pSample = psmp->pSample;
pChn->nTranspose = psmp->RelativeTone;
pChn->nFineTune = psmp->nFineTune;
if (pChn->dwFlags & CHN_SUSTAINLOOP)
{
pChn->nLoopStart = psmp->nSustainStart;
pChn->nLoopEnd = psmp->nSustainEnd;
pChn->dwFlags |= CHN_LOOP;
if (pChn->dwFlags & CHN_PINGPONGSUSTAIN) pChn->dwFlags |= CHN_PINGPONGLOOP;
}
if ((pChn->dwFlags & CHN_LOOP) && (pChn->nLoopEnd < pChn->nLength)) pChn->nLength = pChn->nLoopEnd;
}
void CSoundFile::NoteChange(UINT nChn, int note, BOOL bPorta, BOOL bResetEnv)
//---------------------------------------------------------------------------
{
if (note < 1) return;
MODCHANNEL * const pChn = &Chn[nChn];
MODINSTRUMENT *pins = pChn->pInstrument;
INSTRUMENTHEADER *penv = pChn->pHeader;
if ((penv) && (note <= 0x80))
{
UINT n = penv->Keyboard[note - 1];
if ((n) && (n < MAX_SAMPLES)) pins = &Ins[n];
note = penv->NoteMap[note-1];
}
// Key Off
if (note >= 0x80) // 0xFE or invalid note => key off
{
// Key Off
KeyOff(nChn);
// Note Cut
if (note == 0xFE)
{
pChn->dwFlags |= (CHN_NOTEFADE|CHN_FASTVOLRAMP);
if ((!(m_nType & MOD_TYPE_IT)) || (m_nInstruments)) pChn->nVolume = 0;
pChn->nFadeOutVol = 0;
}
return;
}
if (!pins) return;
if ((!bPorta) && (m_nType & (MOD_TYPE_XM|MOD_TYPE_MED|MOD_TYPE_MT2)))
{
pChn->nTranspose = pins->RelativeTone;
pChn->nFineTune = pins->nFineTune;
}
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2|MOD_TYPE_MED)) note += pChn->nTranspose;
if (note < 1) note = 1;
if (note > 132) note = 132;
pChn->nNote = note;
if ((!bPorta) || (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))) pChn->nNewIns = 0;
UINT period = GetPeriodFromNote(note, pChn->nFineTune, pChn->nC4Speed);
if (period)
{
if ((!bPorta) || (!pChn->nPeriod)) pChn->nPeriod = period;
pChn->nPortamentoDest = period;
if ((!bPorta) || ((!pChn->nLength) && (!(m_nType & MOD_TYPE_S3M))))
{
pChn->pInstrument = pins;
pChn->pSample = pins->pSample;
pChn->nLength = pins->nLength;
pChn->nLoopEnd = pins->nLength;
pChn->nLoopStart = 0;
pChn->dwFlags = (pChn->dwFlags & 0xFFFFFF00) | (pins->uFlags);
if (pChn->dwFlags & CHN_SUSTAINLOOP)
{
pChn->nLoopStart = pins->nSustainStart;
pChn->nLoopEnd = pins->nSustainEnd;
pChn->dwFlags &= ~CHN_PINGPONGLOOP;
pChn->dwFlags |= CHN_LOOP;
if (pChn->dwFlags & CHN_PINGPONGSUSTAIN) pChn->dwFlags |= CHN_PINGPONGLOOP;
if (pChn->nLength > pChn->nLoopEnd) pChn->nLength = pChn->nLoopEnd;
} else
if (pChn->dwFlags & CHN_LOOP)
{
pChn->nLoopStart = pins->nLoopStart;
pChn->nLoopEnd = pins->nLoopEnd;
if (pChn->nLength > pChn->nLoopEnd) pChn->nLength = pChn->nLoopEnd;
}
pChn->nPos = 0;
pChn->nPosLo = 0;
if (pChn->nVibratoType < 4) pChn->nVibratoPos = ((m_nType & MOD_TYPE_IT) && (!(m_dwSongFlags & SONG_ITOLDEFFECTS))) ? 0x10 : 0;
if (pChn->nTremoloType < 4) pChn->nTremoloPos = 0;
}
if (pChn->nPos >= pChn->nLength) pChn->nPos = pChn->nLoopStart;
} else bPorta = FALSE;
if ((!bPorta) || (!(m_nType & MOD_TYPE_IT))
|| ((pChn->dwFlags & CHN_NOTEFADE) && (!pChn->nFadeOutVol))
|| ((m_dwSongFlags & SONG_ITCOMPATMODE) && (pChn->nRowInstr)))
{
if ((m_nType & MOD_TYPE_IT) && (pChn->dwFlags & CHN_NOTEFADE) && (!pChn->nFadeOutVol))
{
pChn->nVolEnvPosition = 0;
pChn->nPanEnvPosition = 0;
pChn->nPitchEnvPosition = 0;
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
pChn->dwFlags &= ~CHN_NOTEFADE;
pChn->nFadeOutVol = 65536;
}
if ((!bPorta) || (!(m_dwSongFlags & SONG_ITCOMPATMODE)) || (pChn->nRowInstr))
{
if ((!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) || (pChn->nRowInstr))
{
pChn->dwFlags &= ~CHN_NOTEFADE;
pChn->nFadeOutVol = 65536;
}
}
}
pChn->dwFlags &= ~(CHN_EXTRALOUD|CHN_KEYOFF);
// Enable Ramping
if (!bPorta)
{
pChn->nVUMeter = 0x100;
pChn->nLeftVU = pChn->nRightVU = 0xFF;
pChn->dwFlags &= ~CHN_FILTER;
pChn->dwFlags |= CHN_FASTVOLRAMP;
pChn->nRetrigCount = 0;
pChn->nTremorCount = 0;
if (bResetEnv)
{
pChn->nVolSwing = pChn->nPanSwing = 0;
if (penv)
{
if (!(penv->dwFlags & ENV_VOLCARRY)) pChn->nVolEnvPosition = 0;
if (!(penv->dwFlags & ENV_PANCARRY)) pChn->nPanEnvPosition = 0;
if (!(penv->dwFlags & ENV_PITCHCARRY)) pChn->nPitchEnvPosition = 0;
if (m_nType & MOD_TYPE_IT)
{
// Volume Swing
if (penv->nVolSwing)
{
int d = ((LONG)penv->nVolSwing*(LONG)((rand() & 0xFF) - 0x7F)) / 128;
pChn->nVolSwing = (signed short)((d * pChn->nVolume + 1)/128);
}
// Pan Swing
if (penv->nPanSwing)
{
int d = ((LONG)penv->nPanSwing*(LONG)((rand() & 0xFF) - 0x7F)) / 128;
pChn->nPanSwing = (signed short)d;
}
}
}
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
}
pChn->nLeftVol = pChn->nRightVol = 0;
BOOL bFlt = (m_dwSongFlags & SONG_MPTFILTERMODE) ? FALSE : TRUE;
// Setup Initial Filter for this note
if (penv)
{
if (penv->nIFR & 0x80) { pChn->nResonance = penv->nIFR & 0x7F; bFlt = TRUE; }
if (penv->nIFC & 0x80) { pChn->nCutOff = penv->nIFC & 0x7F; bFlt = TRUE; }
} else
{
pChn->nVolSwing = pChn->nPanSwing = 0;
}
#ifndef NO_FILTER
if ((pChn->nCutOff < 0x7F) && (bFlt)) SetupChannelFilter(pChn, TRUE);
#endif // NO_FILTER
}
}
UINT CSoundFile::GetNNAChannel(UINT nChn) const
//---------------------------------------------
{
const MODCHANNEL *pChn = &Chn[nChn];
// Check for empty channel
const MODCHANNEL *pi = &Chn[m_nChannels];
for (UINT i=m_nChannels; i<MAX_CHANNELS; i++, pi++) if (!pi->nLength) return i;
if (!pChn->nFadeOutVol) return 0;
// All channels are used: check for lowest volume
UINT result = 0;
DWORD vol = 64*65536; // 25%
DWORD envpos = 0xFFFFFF;
const MODCHANNEL *pj = &Chn[m_nChannels];
for (UINT j=m_nChannels; j<MAX_CHANNELS; j++, pj++)
{
if (!pj->nFadeOutVol) return j;
DWORD v = pj->nVolume;
if (pj->dwFlags & CHN_NOTEFADE)
v = v * pj->nFadeOutVol;
else
v <<= 16;
if (pj->dwFlags & CHN_LOOP) v >>= 1;
if ((v < vol) || ((v == vol) && (pj->nVolEnvPosition > envpos)))
{
envpos = pj->nVolEnvPosition;
vol = v;
result = j;
}
}
return result;
}
void CSoundFile::CheckNNA(UINT nChn, UINT instr, int note, BOOL bForceCut)
//------------------------------------------------------------------------
{
MODCHANNEL *pChn = &Chn[nChn];
INSTRUMENTHEADER *penv = pChn->pHeader, *pHeader;
signed char *pSample;
if (note > 0x80) note = 0;
if (note < 1) return;
// Always NNA cut - using
if ((!(m_nType & (MOD_TYPE_IT|MOD_TYPE_MT2))) || (!m_nInstruments) || (bForceCut))
{
if ((m_dwSongFlags & SONG_CPUVERYHIGH)
|| (!pChn->nLength) || (pChn->dwFlags & CHN_MUTE)
|| ((!pChn->nLeftVol) && (!pChn->nRightVol))) return;
UINT n = GetNNAChannel(nChn);
if (!n) return;
MODCHANNEL *p = &Chn[n];
// Copy Channel
*p = *pChn;
p->dwFlags &= ~(CHN_VIBRATO|CHN_TREMOLO|CHN_PANBRELLO|CHN_MUTE|CHN_PORTAMENTO);
p->nMasterChn = nChn+1;
p->nCommand = 0;
// Cut the note
p->nFadeOutVol = 0;
p->dwFlags |= (CHN_NOTEFADE|CHN_FASTVOLRAMP);
// Stop this channel
pChn->nLength = pChn->nPos = pChn->nPosLo = 0;
pChn->nROfs = pChn->nLOfs = 0;
pChn->nLeftVol = pChn->nRightVol = 0;
return;
}
if (instr >= MAX_INSTRUMENTS) instr = 0;
pSample = pChn->pSample;
pHeader = pChn->pHeader;
if ((instr) && (note))
{
pHeader = Headers[instr];
if (pHeader)
{
UINT n = 0;
if (note <= 0x80)
{
n = pHeader->Keyboard[note-1];
note = pHeader->NoteMap[note-1];
if ((n) && (n < MAX_SAMPLES)) pSample = Ins[n].pSample;
}
} else pSample = NULL;
}
if (!penv) return;
MODCHANNEL *p = pChn;
for (UINT i=nChn; i<MAX_CHANNELS; p++, i++)
if ((i >= m_nChannels) || (p == pChn))
{
if (((p->nMasterChn == nChn+1) || (p == pChn)) && (p->pHeader))
{
BOOL bOk = FALSE;
// Duplicate Check Type
switch(p->pHeader->nDCT)
{
// Note
case DCT_NOTE:
if ((note) && (p->nNote == note) && (pHeader == p->pHeader)) bOk = TRUE;
break;
// Sample
case DCT_SAMPLE:
if ((pSample) && (pSample == p->pSample)) bOk = TRUE;
break;
// Instrument
case DCT_INSTRUMENT:
if (pHeader == p->pHeader) bOk = TRUE;
break;
}
// Duplicate Note Action
if (bOk)
{
switch(p->pHeader->nDNA)
{
// Cut
case DNA_NOTECUT:
KeyOff(i);
p->nVolume = 0;
break;
// Note Off
case DNA_NOTEOFF:
KeyOff(i);
break;
// Note Fade
case DNA_NOTEFADE:
p->dwFlags |= CHN_NOTEFADE;
break;
}
if (!p->nVolume)
{
p->nFadeOutVol = 0;
p->dwFlags |= (CHN_NOTEFADE|CHN_FASTVOLRAMP);
}
}
}
}
if (pChn->dwFlags & CHN_MUTE) return;
// New Note Action
if ((pChn->nVolume) && (pChn->nLength))
{
UINT n = GetNNAChannel(nChn);
if (n)
{
MODCHANNEL *p = &Chn[n];
// Copy Channel
*p = *pChn;
p->dwFlags &= ~(CHN_VIBRATO|CHN_TREMOLO|CHN_PANBRELLO|CHN_MUTE|CHN_PORTAMENTO);
p->nMasterChn = nChn+1;
p->nCommand = 0;
// Key Off the note
switch(pChn->nNNA)
{
case NNA_NOTEOFF: KeyOff(n); break;
case NNA_NOTECUT:
p->nFadeOutVol = 0;
case NNA_NOTEFADE: p->dwFlags |= CHN_NOTEFADE; break;
}
if (!p->nVolume)
{
p->nFadeOutVol = 0;
p->dwFlags |= (CHN_NOTEFADE|CHN_FASTVOLRAMP);
}
// Stop this channel
pChn->nLength = pChn->nPos = pChn->nPosLo = 0;
pChn->nROfs = pChn->nLOfs = 0;
}
}
}
BOOL CSoundFile::ProcessEffects()
//-------------------------------
{
int nBreakRow = -1, nPosJump = -1, nPatLoopRow = -1;
MODCHANNEL *pChn = Chn;
for (UINT nChn=0; nChn<m_nChannels; nChn++, pChn++)
{
UINT instr = pChn->nRowInstr;
UINT volcmd = pChn->nRowVolCmd;
UINT vol = pChn->nRowVolume;
UINT cmd = pChn->nRowCommand;
UINT param = pChn->nRowParam;
BOOL bPorta = ((cmd != CMD_TONEPORTAMENTO) && (cmd != CMD_TONEPORTAVOL) && (volcmd != VOLCMD_TONEPORTAMENTO)) ? FALSE : TRUE;
UINT nStartTick = 0;
pChn->dwFlags &= ~CHN_FASTVOLRAMP;
// Process special effects (note delay, pattern delay, pattern loop)
if ((cmd == CMD_MODCMDEX) || (cmd == CMD_S3MCMDEX))
{
if ((!param) && (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))) param = pChn->nOldCmdEx; else pChn->nOldCmdEx = param;
// Note Delay ?
if ((param & 0xF0) == 0xD0)
{
nStartTick = param & 0x0F;
} else
if (!m_nTickCount)
{
// Pattern Loop ?
if ((((param & 0xF0) == 0x60) && (cmd == CMD_MODCMDEX))
|| (((param & 0xF0) == 0xB0) && (cmd == CMD_S3MCMDEX)))
{
int nloop = PatternLoop(pChn, param & 0x0F);
if (nloop >= 0) nPatLoopRow = nloop;
} else
// Pattern Delay
if ((param & 0xF0) == 0xE0)
{
m_nPatternDelay = param & 0x0F;
}
}
}
// Handles note/instrument/volume changes
if (m_nTickCount == nStartTick) // can be delayed by a note delay effect
{
UINT note = pChn->nRowNote;
if (instr) pChn->nNewIns = instr;
// XM: Key-Off + Sample == Note Cut
if (m_nType & (MOD_TYPE_MOD|MOD_TYPE_XM|MOD_TYPE_MT2))
{
if ((note == 0xFF) && ((!pChn->pHeader) || (!(pChn->pHeader->dwFlags & ENV_VOLUME))))
{
pChn->dwFlags |= CHN_FASTVOLRAMP;
pChn->nVolume = 0;
note = instr = 0;
}
}
if ((!note) && (instr))
{
if (m_nInstruments)
{
if (pChn->pInstrument) pChn->nVolume = pChn->pInstrument->nVolume;
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
pChn->dwFlags |= CHN_FASTVOLRAMP;
pChn->nVolEnvPosition = 0;
pChn->nPanEnvPosition = 0;
pChn->nPitchEnvPosition = 0;
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
pChn->dwFlags &= ~CHN_NOTEFADE;
pChn->nFadeOutVol = 65536;
}
} else
{
if (instr < MAX_SAMPLES) pChn->nVolume = Ins[instr].nVolume;
}
if (!(m_nType & MOD_TYPE_IT)) instr = 0;
}
// Invalid Instrument ?
if (instr >= MAX_INSTRUMENTS) instr = 0;
// Note Cut/Off => ignore instrument
if (note >= 0xFE) instr = 0;
if ((note) && (note <= 128)) pChn->nNewNote = note;
// New Note Action ?
if ((note) && (note <= 128) && (!bPorta))
{
CheckNNA(nChn, instr, note, FALSE);
}
// Instrument Change ?
if (instr)
{
MODINSTRUMENT *psmp = pChn->pInstrument;
InstrumentChange(pChn, instr, bPorta, TRUE);
pChn->nNewIns = 0;
// Special IT case: portamento+note causes sample change -> ignore portamento
if ((m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))
&& (psmp != pChn->pInstrument) && (note) && (note < 0x80))
{
bPorta = FALSE;
}
}
// New Note ?
if (note)
{
if ((!instr) && (pChn->nNewIns) && (note < 0x80))
{
InstrumentChange(pChn, pChn->nNewIns, bPorta, FALSE, (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) ? FALSE : TRUE);
pChn->nNewIns = 0;
}
NoteChange(nChn, note, bPorta, (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) ? FALSE : TRUE);
if ((bPorta) && (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) && (instr))
{
pChn->dwFlags |= CHN_FASTVOLRAMP;
pChn->nVolEnvPosition = 0;
pChn->nPanEnvPosition = 0;
pChn->nPitchEnvPosition = 0;
pChn->nAutoVibDepth = 0;
pChn->nAutoVibPos = 0;
}
}
// Tick-0 only volume commands
if (volcmd == VOLCMD_VOLUME)
{
if (vol > 64) vol = 64;
pChn->nVolume = vol << 2;
pChn->dwFlags |= CHN_FASTVOLRAMP;
} else
if (volcmd == VOLCMD_PANNING)
{
if (vol > 64) vol = 64;
pChn->nPan = vol << 2;
pChn->dwFlags |= CHN_FASTVOLRAMP;
}
}
// Volume Column Effect (except volume & panning)
if ((volcmd > VOLCMD_PANNING) && (m_nTickCount >= nStartTick))
{
if (volcmd == VOLCMD_TONEPORTAMENTO)
{
if (m_nType & MOD_TYPE_IT)
TonePortamento(pChn, ImpulseTrackerPortaVolCmd[vol & 0x0F]);
else
TonePortamento(pChn, vol * 16);
} else
{
if (vol) pChn->nOldVolParam = vol; else vol = pChn->nOldVolParam;
switch(volcmd)
{
case VOLCMD_VOLSLIDEUP:
VolumeSlide(pChn, vol << 4);
break;
case VOLCMD_VOLSLIDEDOWN:
VolumeSlide(pChn, vol);
break;
case VOLCMD_FINEVOLUP:
if (m_nType & MOD_TYPE_IT)
{
if (m_nTickCount == nStartTick) VolumeSlide(pChn, (vol << 4) | 0x0F);
} else
FineVolumeUp(pChn, vol);
break;
case VOLCMD_FINEVOLDOWN:
if (m_nType & MOD_TYPE_IT)
{
if (m_nTickCount == nStartTick) VolumeSlide(pChn, 0xF0 | vol);
} else
FineVolumeDown(pChn, vol);
break;
case VOLCMD_VIBRATOSPEED:
Vibrato(pChn, vol << 4);
break;
case VOLCMD_VIBRATO:
Vibrato(pChn, vol);
break;
case VOLCMD_PANSLIDELEFT:
PanningSlide(pChn, vol);
break;
case VOLCMD_PANSLIDERIGHT:
PanningSlide(pChn, vol << 4);
break;
case VOLCMD_PORTAUP:
PortamentoUp(pChn, vol << 2);
break;
case VOLCMD_PORTADOWN:
PortamentoDown(pChn, vol << 2);
break;
}
}
}
// Effects
if (cmd) switch (cmd)
{
// Set Volume
case CMD_VOLUME:
if (!m_nTickCount)
{
pChn->nVolume = (param < 64) ? param*4 : 256;
pChn->dwFlags |= CHN_FASTVOLRAMP;
}
break;
// Portamento Up
case CMD_PORTAMENTOUP:
if ((!param) && (m_nType & MOD_TYPE_MOD)) break;
PortamentoUp(pChn, param);
break;
// Portamento Down
case CMD_PORTAMENTODOWN:
if ((!param) && (m_nType & MOD_TYPE_MOD)) break;
PortamentoDown(pChn, param);
break;
// Volume Slide
case CMD_VOLUMESLIDE:
if ((param) || (m_nType != MOD_TYPE_MOD)) VolumeSlide(pChn, param);
break;
// Tone-Portamento
case CMD_TONEPORTAMENTO:
TonePortamento(pChn, param);
break;
// Tone-Portamento + Volume Slide
case CMD_TONEPORTAVOL:
if ((param) || (m_nType != MOD_TYPE_MOD)) VolumeSlide(pChn, param);
TonePortamento(pChn, 0);
break;
// Vibrato
case CMD_VIBRATO:
Vibrato(pChn, param);
break;
// Vibrato + Volume Slide
case CMD_VIBRATOVOL:
if ((param) || (m_nType != MOD_TYPE_MOD)) VolumeSlide(pChn, param);
Vibrato(pChn, 0);
break;
// Set Speed
case CMD_SPEED:
if (!m_nTickCount) SetSpeed(param);
break;
// Set Tempo
case CMD_TEMPO:
if (!m_nTickCount)
{
if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))
{
if (param) pChn->nOldTempo = param; else param = pChn->nOldTempo;
}
SetTempo(param);
}
break;
// Set Offset
case CMD_OFFSET:
if (m_nTickCount) break;
if (param) pChn->nOldOffset = param; else param = pChn->nOldOffset;
param <<= 8;
param |= (UINT)(pChn->nOldHiOffset) << 16;
if ((pChn->nRowNote) && (pChn->nRowNote < 0x80))
{
if (bPorta)
pChn->nPos = param;
else
pChn->nPos += param;
if (pChn->nPos >= pChn->nLength)
{
if (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)))
{
pChn->nPos = pChn->nLoopStart;
if ((m_dwSongFlags & SONG_ITOLDEFFECTS) && (pChn->nLength > 4))
{
pChn->nPos = pChn->nLength - 2;
}
}
}
} else
if ((param < pChn->nLength) && (m_nType & (MOD_TYPE_MTM|MOD_TYPE_DMF)))
{
pChn->nPos = param;
}
break;
// Arpeggio
case CMD_ARPEGGIO:
if ((m_nTickCount) || (!pChn->nPeriod) || (!pChn->nNote)) break;
if ((!param) && (!(m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT)))) break;
pChn->nCommand = CMD_ARPEGGIO;
if (param) pChn->nArpeggio = param;
break;
// Retrig
case CMD_RETRIG:
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (!(param & 0xF0)) param |= pChn->nRetrigParam & 0xF0;
if (!(param & 0x0F)) param |= pChn->nRetrigParam & 0x0F;
param |= 0x100; // increment retrig count on first row
}
if (param) pChn->nRetrigParam = (BYTE)(param & 0xFF); else param = pChn->nRetrigParam;
RetrigNote(nChn, param);
break;
// Tremor
case CMD_TREMOR:
if (m_nTickCount) break;
pChn->nCommand = CMD_TREMOR;
if (param) pChn->nTremorParam = param;
break;
// Set Global Volume
case CMD_GLOBALVOLUME:
if (m_nTickCount) break;
if (m_nType != MOD_TYPE_IT) param <<= 1;
if (param > 128) param = 128;
m_nGlobalVolume = param << 1;
break;
// Global Volume Slide
case CMD_GLOBALVOLSLIDE:
GlobalVolSlide(param);
break;
// Set 8-bit Panning
case CMD_PANNING8:
if (m_nTickCount) break;
if (!(m_dwSongFlags & SONG_SURROUNDPAN)) pChn->dwFlags &= ~CHN_SURROUND;
if (m_nType & (MOD_TYPE_IT|MOD_TYPE_XM|MOD_TYPE_MT2))
{
pChn->nPan = param;
} else
if (param <= 0x80)
{
pChn->nPan = param << 1;
} else
if (param == 0xA4)
{
pChn->dwFlags |= CHN_SURROUND;
pChn->nPan = 0x80;
}
pChn->dwFlags |= CHN_FASTVOLRAMP;
break;
// Panning Slide
case CMD_PANNINGSLIDE:
PanningSlide(pChn, param);
break;
// Tremolo
case CMD_TREMOLO:
Tremolo(pChn, param);
break;
// Fine Vibrato
case CMD_FINEVIBRATO:
FineVibrato(pChn, param);
break;
// MOD/XM Exx Extended Commands
case CMD_MODCMDEX:
ExtendedMODCommands(nChn, param);
break;
// S3M/IT Sxx Extended Commands
case CMD_S3MCMDEX:
ExtendedS3MCommands(nChn, param);
break;
// Key Off
case CMD_KEYOFF:
if (!m_nTickCount) KeyOff(nChn);
break;
// Extra-fine porta up/down
case CMD_XFINEPORTAUPDOWN:
switch(param & 0xF0)
{
case 0x10: ExtraFinePortamentoUp(pChn, param & 0x0F); break;
case 0x20: ExtraFinePortamentoDown(pChn, param & 0x0F); break;
// Modplug XM Extensions
case 0x50:
case 0x60:
case 0x70:
case 0x90:
case 0xA0: ExtendedS3MCommands(nChn, param); break;
}
break;
// Set Channel Global Volume
case CMD_CHANNELVOLUME:
if (m_nTickCount) break;
if (param <= 64)
{
pChn->nGlobalVol = param;
pChn->dwFlags |= CHN_FASTVOLRAMP;
}
break;
// Channel volume slide
case CMD_CHANNELVOLSLIDE:
ChannelVolSlide(pChn, param);
break;
// Panbrello (IT)
case CMD_PANBRELLO:
Panbrello(pChn, param);
break;
// Set Envelope Position
case CMD_SETENVPOSITION:
if (!m_nTickCount)
{
pChn->nVolEnvPosition = param;
pChn->nPanEnvPosition = param;
pChn->nPitchEnvPosition = param;
if (pChn->pHeader)
{
INSTRUMENTHEADER *penv = pChn->pHeader;
if ((pChn->dwFlags & CHN_PANENV) && (penv->nPanEnv) && (param > penv->PanPoints[penv->nPanEnv-1]))
{
pChn->dwFlags &= ~CHN_PANENV;
}
}
}
break;
// Position Jump
case CMD_POSITIONJUMP:
nPosJump = param;
break;
// Pattern Break
case CMD_PATTERNBREAK:
nBreakRow = param;
break;
// Midi Controller
case CMD_MIDI:
if (m_nTickCount) break;
if (param < 0x80)
{
ProcessMidiMacro(nChn, &m_MidiCfg.szMidiSFXExt[pChn->nActiveMacro << 5], param);
} else
{
ProcessMidiMacro(nChn, &m_MidiCfg.szMidiZXXExt[(param & 0x7F) << 5], 0);
}
break;
}
}
// Navigation Effects
if (!m_nTickCount)
{
// Pattern Loop
if (nPatLoopRow >= 0)
{
m_nNextPattern = m_nCurrentPattern;
m_nNextRow = nPatLoopRow;
if (m_nPatternDelay) m_nNextRow++;
} else
// Pattern Break / Position Jump only if no loop running
if ((nBreakRow >= 0) || (nPosJump >= 0))
{
BOOL bNoLoop = FALSE;
if (nPosJump < 0) nPosJump = m_nCurrentPattern+1;
if (nBreakRow < 0) nBreakRow = 0;
// Modplug Tracker & ModPlugin allow backward jumps
#ifndef FASTSOUNDLIB
if ((nPosJump < (int)m_nCurrentPattern)
|| ((nPosJump == (int)m_nCurrentPattern) && (nBreakRow <= (int)m_nRow)))
{
if (!IsValidBackwardJump(m_nCurrentPattern, m_nRow, nPosJump, nBreakRow))
{
if (m_nRepeatCount)
{
if (m_nRepeatCount > 0) m_nRepeatCount--;
} else
{
#ifdef MODPLUG_TRACKER
if (gdwSoundSetup & SNDMIX_NOBACKWARDJUMPS)
#endif
// Backward jump disabled
bNoLoop = TRUE;
//reset repeat count incase there are multiple loops.
//(i.e. Unreal tracks)
m_nRepeatCount = m_nInitialRepeatCount;
}
}
}
#endif // FASTSOUNDLIB
if (((!bNoLoop) && (nPosJump < MAX_ORDERS))
&& ((nPosJump != (int)m_nCurrentPattern) || (nBreakRow != (int)m_nRow)))
{
if (nPosJump != (int)m_nCurrentPattern)
{
for (UINT i=0; i<m_nChannels; i++) Chn[i].nPatternLoopCount = 0;
}
m_nNextPattern = nPosJump;
m_nNextRow = (UINT)nBreakRow;
}
}
}
return TRUE;
}
////////////////////////////////////////////////////////////
// Channels effects
void CSoundFile::PortamentoUp(MODCHANNEL *pChn, UINT param)
//---------------------------------------------------------
{
if (param) pChn->nOldPortaUpDown = param; else param = pChn->nOldPortaUpDown;
if ((m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM)) && ((param & 0xF0) >= 0xE0))
{
if (param & 0x0F)
{
if ((param & 0xF0) == 0xF0)
{
FinePortamentoUp(pChn, param & 0x0F);
} else
if ((param & 0xF0) == 0xE0)
{
ExtraFinePortamentoUp(pChn, param & 0x0F);
}
}
return;
}
// Regular Slide
if (!(m_dwSongFlags & SONG_FIRSTTICK))
{
DoFreqSlide(pChn, -(int)(param * 4));
}
}
void CSoundFile::PortamentoDown(MODCHANNEL *pChn, UINT param)
//-----------------------------------------------------------
{
if (param) pChn->nOldPortaUpDown = param; else param = pChn->nOldPortaUpDown;
if ((m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM)) && ((param & 0xF0) >= 0xE0))
{
if (param & 0x0F)
{
if ((param & 0xF0) == 0xF0)
{
FinePortamentoDown(pChn, param & 0x0F);
} else
if ((param & 0xF0) == 0xE0)
{
ExtraFinePortamentoDown(pChn, param & 0x0F);
}
}
return;
}
if (!(m_dwSongFlags & SONG_FIRSTTICK)) DoFreqSlide(pChn, (int)(param << 2));
}
void CSoundFile::FinePortamentoUp(MODCHANNEL *pChn, UINT param)
//-------------------------------------------------------------
{
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (param) pChn->nOldFinePortaUpDown = param; else param = pChn->nOldFinePortaUpDown;
}
if (m_dwSongFlags & SONG_FIRSTTICK)
{
if ((pChn->nPeriod) && (param))
{
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
pChn->nPeriod = _muldivr(pChn->nPeriod, LinearSlideDownTable[param & 0x0F], 65536);
} else
{
pChn->nPeriod -= (int)(param * 4);
}
if (pChn->nPeriod < 1) pChn->nPeriod = 1;
}
}
}
void CSoundFile::FinePortamentoDown(MODCHANNEL *pChn, UINT param)
//---------------------------------------------------------------
{
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (param) pChn->nOldFinePortaUpDown = param; else param = pChn->nOldFinePortaUpDown;
}
if (m_dwSongFlags & SONG_FIRSTTICK)
{
if ((pChn->nPeriod) && (param))
{
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
pChn->nPeriod = _muldivr(pChn->nPeriod, LinearSlideUpTable[param & 0x0F], 65536);
} else
{
pChn->nPeriod += (int)(param * 4);
}
if (pChn->nPeriod > 0xFFFF) pChn->nPeriod = 0xFFFF;
}
}
}
void CSoundFile::ExtraFinePortamentoUp(MODCHANNEL *pChn, UINT param)
//------------------------------------------------------------------
{
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (param) pChn->nOldFinePortaUpDown = param; else param = pChn->nOldFinePortaUpDown;
}
if (m_dwSongFlags & SONG_FIRSTTICK)
{
if ((pChn->nPeriod) && (param))
{
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
pChn->nPeriod = _muldivr(pChn->nPeriod, FineLinearSlideDownTable[param & 0x0F], 65536);
} else
{
pChn->nPeriod -= (int)(param);
}
if (pChn->nPeriod < 1) pChn->nPeriod = 1;
}
}
}
void CSoundFile::ExtraFinePortamentoDown(MODCHANNEL *pChn, UINT param)
//--------------------------------------------------------------------
{
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (param) pChn->nOldFinePortaUpDown = param; else param = pChn->nOldFinePortaUpDown;
}
if (m_dwSongFlags & SONG_FIRSTTICK)
{
if ((pChn->nPeriod) && (param))
{
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
pChn->nPeriod = _muldivr(pChn->nPeriod, FineLinearSlideUpTable[param & 0x0F], 65536);
} else
{
pChn->nPeriod += (int)(param);
}
if (pChn->nPeriod > 0xFFFF) pChn->nPeriod = 0xFFFF;
}
}
}
// Portamento Slide
void CSoundFile::TonePortamento(MODCHANNEL *pChn, UINT param)
//-----------------------------------------------------------
{
if (param) pChn->nPortamentoSlide = param * 4;
pChn->dwFlags |= CHN_PORTAMENTO;
if ((pChn->nPeriod) && (pChn->nPortamentoDest) && (!(m_dwSongFlags & SONG_FIRSTTICK)))
{
if (pChn->nPeriod < pChn->nPortamentoDest)
{
LONG delta = (int)pChn->nPortamentoSlide;
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
UINT n = pChn->nPortamentoSlide >> 2;
if (n > 255) n = 255;
delta = _muldivr(pChn->nPeriod, LinearSlideUpTable[n], 65536) - pChn->nPeriod;
if (delta < 1) delta = 1;
}
pChn->nPeriod += delta;
if (pChn->nPeriod > pChn->nPortamentoDest) pChn->nPeriod = pChn->nPortamentoDest;
} else
if (pChn->nPeriod > pChn->nPortamentoDest)
{
LONG delta = - (int)pChn->nPortamentoSlide;
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
UINT n = pChn->nPortamentoSlide >> 2;
if (n > 255) n = 255;
delta = _muldivr(pChn->nPeriod, LinearSlideDownTable[n], 65536) - pChn->nPeriod;
if (delta > -1) delta = -1;
}
pChn->nPeriod += delta;
if (pChn->nPeriod < pChn->nPortamentoDest) pChn->nPeriod = pChn->nPortamentoDest;
}
}
}
void CSoundFile::Vibrato(MODCHANNEL *p, UINT param)
//-------------------------------------------------
{
if (param & 0x0F) p->nVibratoDepth = (param & 0x0F) * 4;
if (param & 0xF0) p->nVibratoSpeed = (param >> 4) & 0x0F;
p->dwFlags |= CHN_VIBRATO;
}
void CSoundFile::FineVibrato(MODCHANNEL *p, UINT param)
//-----------------------------------------------------
{
if (param & 0x0F) p->nVibratoDepth = param & 0x0F;
if (param & 0xF0) p->nVibratoSpeed = (param >> 4) & 0x0F;
p->dwFlags |= CHN_VIBRATO;
}
void CSoundFile::Panbrello(MODCHANNEL *p, UINT param)
//---------------------------------------------------
{
if (param & 0x0F) p->nPanbrelloDepth = param & 0x0F;
if (param & 0xF0) p->nPanbrelloSpeed = (param >> 4) & 0x0F;
p->dwFlags |= CHN_PANBRELLO;
}
void CSoundFile::VolumeSlide(MODCHANNEL *pChn, UINT param)
//--------------------------------------------------------
{
if (param) pChn->nOldVolumeSlide = param; else param = pChn->nOldVolumeSlide;
LONG newvolume = pChn->nVolume;
if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM|MOD_TYPE_AMF))
{
if ((param & 0x0F) == 0x0F)
{
if (param & 0xF0)
{
FineVolumeUp(pChn, (param >> 4));
return;
} else
{
if ((m_dwSongFlags & SONG_FIRSTTICK) && (!(m_dwSongFlags & SONG_FASTVOLSLIDES)))
{
newvolume -= 0x0F * 4;
}
}
} else
if ((param & 0xF0) == 0xF0)
{
if (param & 0x0F)
{
FineVolumeDown(pChn, (param & 0x0F));
return;
} else
{
if ((m_dwSongFlags & SONG_FIRSTTICK) && (!(m_dwSongFlags & SONG_FASTVOLSLIDES)))
{
newvolume += 0x0F * 4;
}
}
}
}
if ((!(m_dwSongFlags & SONG_FIRSTTICK)) || (m_dwSongFlags & SONG_FASTVOLSLIDES))
{
if (param & 0x0F) newvolume -= (int)((param & 0x0F) * 4);
else newvolume += (int)((param & 0xF0) >> 2);
if (m_nType & MOD_TYPE_MOD) pChn->dwFlags |= CHN_FASTVOLRAMP;
}
if (newvolume < 0) newvolume = 0;
if (newvolume > 256) newvolume = 256;
pChn->nVolume = newvolume;
}
void CSoundFile::PanningSlide(MODCHANNEL *pChn, UINT param)
//---------------------------------------------------------
{
LONG nPanSlide = 0;
if (param) pChn->nOldPanSlide = param; else param = pChn->nOldPanSlide;
if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM))
{
if (((param & 0x0F) == 0x0F) && (param & 0xF0))
{
if (m_dwSongFlags & SONG_FIRSTTICK)
{
param = (param & 0xF0) >> 2;
nPanSlide = - (int)param;
}
} else
if (((param & 0xF0) == 0xF0) && (param & 0x0F))
{
if (m_dwSongFlags & SONG_FIRSTTICK)
{
nPanSlide = (param & 0x0F) << 2;
}
} else
{
if (!(m_dwSongFlags & SONG_FIRSTTICK))
{
if (param & 0x0F) nPanSlide = (int)((param & 0x0F) << 2);
else nPanSlide = -(int)((param & 0xF0) >> 2);
}
}
} else
{
if (!(m_dwSongFlags & SONG_FIRSTTICK))
{
if (param & 0x0F) nPanSlide = -(int)((param & 0x0F) << 2);
else nPanSlide = (int)((param & 0xF0) >> 2);
}
}
if (nPanSlide)
{
nPanSlide += pChn->nPan;
if (nPanSlide < 0) nPanSlide = 0;
if (nPanSlide > 256) nPanSlide = 256;
pChn->nPan = nPanSlide;
}
}
void CSoundFile::FineVolumeUp(MODCHANNEL *pChn, UINT param)
//---------------------------------------------------------
{
if (param) pChn->nOldFineVolUpDown = param; else param = pChn->nOldFineVolUpDown;
if (m_dwSongFlags & SONG_FIRSTTICK)
{
pChn->nVolume += param * 4;
if (pChn->nVolume > 256) pChn->nVolume = 256;
if (m_nType & MOD_TYPE_MOD) pChn->dwFlags |= CHN_FASTVOLRAMP;
}
}
void CSoundFile::FineVolumeDown(MODCHANNEL *pChn, UINT param)
//-----------------------------------------------------------
{
if (param) pChn->nOldFineVolUpDown = param; else param = pChn->nOldFineVolUpDown;
if (m_dwSongFlags & SONG_FIRSTTICK)
{
pChn->nVolume -= param * 4;
if (pChn->nVolume < 0) pChn->nVolume = 0;
if (m_nType & MOD_TYPE_MOD) pChn->dwFlags |= CHN_FASTVOLRAMP;
}
}
void CSoundFile::Tremolo(MODCHANNEL *p, UINT param)
//-------------------------------------------------
{
if (param & 0x0F) p->nTremoloDepth = (param & 0x0F) << 2;
if (param & 0xF0) p->nTremoloSpeed = (param >> 4) & 0x0F;
p->dwFlags |= CHN_TREMOLO;
}
void CSoundFile::ChannelVolSlide(MODCHANNEL *pChn, UINT param)
//------------------------------------------------------------
{
LONG nChnSlide = 0;
if (param) pChn->nOldChnVolSlide = param; else param = pChn->nOldChnVolSlide;
if (((param & 0x0F) == 0x0F) && (param & 0xF0))
{
if (m_dwSongFlags & SONG_FIRSTTICK) nChnSlide = param >> 4;
} else
if (((param & 0xF0) == 0xF0) && (param & 0x0F))
{
if (m_dwSongFlags & SONG_FIRSTTICK) nChnSlide = - (int)(param & 0x0F);
} else
{
if (!(m_dwSongFlags & SONG_FIRSTTICK))
{
if (param & 0x0F) nChnSlide = -(int)(param & 0x0F);
else nChnSlide = (int)((param & 0xF0) >> 4);
}
}
if (nChnSlide)
{
nChnSlide += pChn->nGlobalVol;
if (nChnSlide < 0) nChnSlide = 0;
if (nChnSlide > 64) nChnSlide = 64;
pChn->nGlobalVol = nChnSlide;
}
}
void CSoundFile::ExtendedMODCommands(UINT nChn, UINT param)
//---------------------------------------------------------
{
MODCHANNEL *pChn = &Chn[nChn];
UINT command = param & 0xF0;
param &= 0x0F;
switch(command)
{
// E0x: Set Filter
// E1x: Fine Portamento Up
case 0x10: if ((param) || (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) FinePortamentoUp(pChn, param); break;
// E2x: Fine Portamento Down
case 0x20: if ((param) || (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) FinePortamentoDown(pChn, param); break;
// E3x: Set Glissando Control
case 0x30: pChn->dwFlags &= ~CHN_GLISSANDO; if (param) pChn->dwFlags |= CHN_GLISSANDO; break;
// E4x: Set Vibrato WaveForm
case 0x40: pChn->nVibratoType = param & 0x07; break;
// E5x: Set FineTune
case 0x50: if (m_nTickCount) break;
pChn->nC4Speed = S3MFineTuneTable[param];
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
pChn->nFineTune = param*2;
else
pChn->nFineTune = MOD2XMFineTune(param);
if (pChn->nPeriod) pChn->nPeriod = GetPeriodFromNote(pChn->nNote, pChn->nFineTune, pChn->nC4Speed);
break;
// E6x: Pattern Loop
// E7x: Set Tremolo WaveForm
case 0x70: pChn->nTremoloType = param & 0x07; break;
// E8x: Set 4-bit Panning
case 0x80: if (!m_nTickCount) { pChn->nPan = (param << 4) + 8; pChn->dwFlags |= CHN_FASTVOLRAMP; } break;
// E9x: Retrig
case 0x90: RetrigNote(nChn, param); break;
// EAx: Fine Volume Up
case 0xA0: if ((param) || (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) FineVolumeUp(pChn, param); break;
// EBx: Fine Volume Down
case 0xB0: if ((param) || (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) FineVolumeDown(pChn, param); break;
// ECx: Note Cut
case 0xC0: NoteCut(nChn, param); break;
// EDx: Note Delay
// EEx: Pattern Delay
// EFx: MOD: Invert Loop, XM: Set Active Midi Macro
case 0xF0: pChn->nActiveMacro = param; break;
}
}
void CSoundFile::ExtendedS3MCommands(UINT nChn, UINT param)
//---------------------------------------------------------
{
MODCHANNEL *pChn = &Chn[nChn];
UINT command = param & 0xF0;
param &= 0x0F;
switch(command)
{
// S0x: Set Filter
// S1x: Set Glissando Control
case 0x10: pChn->dwFlags &= ~CHN_GLISSANDO; if (param) pChn->dwFlags |= CHN_GLISSANDO; break;
// S2x: Set FineTune
case 0x20: if (m_nTickCount) break;
pChn->nC4Speed = S3MFineTuneTable[param & 0x0F];
pChn->nFineTune = MOD2XMFineTune(param);
if (pChn->nPeriod) pChn->nPeriod = GetPeriodFromNote(pChn->nNote, pChn->nFineTune, pChn->nC4Speed);
break;
// S3x: Set Vibrato WaveForm
case 0x30: pChn->nVibratoType = param & 0x07; break;
// S4x: Set Tremolo WaveForm
case 0x40: pChn->nTremoloType = param & 0x07; break;
// S5x: Set Panbrello WaveForm
case 0x50: pChn->nPanbrelloType = param & 0x07; break;
// S6x: Pattern Delay for x frames
case 0x60: m_nFrameDelay = param; break;
// S7x: Envelope Control
case 0x70: if (m_nTickCount) break;
switch(param)
{
case 0:
case 1:
case 2:
{
MODCHANNEL *bkp = &Chn[m_nChannels];
for (UINT i=m_nChannels; i<MAX_CHANNELS; i++, bkp++)
{
if (bkp->nMasterChn == nChn+1)
{
if (param == 1) KeyOff(i); else
if (param == 2) bkp->dwFlags |= CHN_NOTEFADE; else
{ bkp->dwFlags |= CHN_NOTEFADE; bkp->nFadeOutVol = 0; }
}
}
}
break;
case 3: pChn->nNNA = NNA_NOTECUT; break;
case 4: pChn->nNNA = NNA_CONTINUE; break;
case 5: pChn->nNNA = NNA_NOTEOFF; break;
case 6: pChn->nNNA = NNA_NOTEFADE; break;
case 7: pChn->dwFlags &= ~CHN_VOLENV; break;
case 8: pChn->dwFlags |= CHN_VOLENV; break;
case 9: pChn->dwFlags &= ~CHN_PANENV; break;
case 10: pChn->dwFlags |= CHN_PANENV; break;
case 11: pChn->dwFlags &= ~CHN_PITCHENV; break;
case 12: pChn->dwFlags |= CHN_PITCHENV; break;
}
break;
// S8x: Set 4-bit Panning
case 0x80: if (!m_nTickCount) { pChn->nPan = (param << 4) + 8; pChn->dwFlags |= CHN_FASTVOLRAMP; } break;
// S9x: Set Surround
case 0x90: ExtendedChannelEffect(pChn, param & 0x0F); break;
// SAx: Set 64k Offset
case 0xA0: if (!m_nTickCount)
{
pChn->nOldHiOffset = param;
if ((pChn->nRowNote) && (pChn->nRowNote < 0x80))
{
DWORD pos = param << 16;
if (pos < pChn->nLength) pChn->nPos = pos;
}
}
break;
// SBx: Pattern Loop
// SCx: Note Cut
case 0xC0: NoteCut(nChn, param); break;
// SDx: Note Delay
// case 0xD0: break;
// SEx: Pattern Delay for x rows
// SFx: S3M: Funk Repeat, IT: Set Active Midi Macro
case 0xF0: pChn->nActiveMacro = param; break;
}
}
void CSoundFile::ExtendedChannelEffect(MODCHANNEL *pChn, UINT param)
//------------------------------------------------------------------
{
// S9x and X9x commands (S3M/XM/IT only)
if (m_nTickCount) return;
switch(param & 0x0F)
{
// S90: Surround Off
case 0x00: pChn->dwFlags &= ~CHN_SURROUND; break;
// S91: Surround On
case 0x01: pChn->dwFlags |= CHN_SURROUND; pChn->nPan = 128; break;
////////////////////////////////////////////////////////////
// Modplug Extensions
// S98: Reverb Off
case 0x08:
pChn->dwFlags &= ~CHN_REVERB;
pChn->dwFlags |= CHN_NOREVERB;
break;
// S99: Reverb On
case 0x09:
pChn->dwFlags &= ~CHN_NOREVERB;
pChn->dwFlags |= CHN_REVERB;
break;
// S9A: 2-Channels surround mode
case 0x0A:
m_dwSongFlags &= ~SONG_SURROUNDPAN;
break;
// S9B: 4-Channels surround mode
case 0x0B:
m_dwSongFlags |= SONG_SURROUNDPAN;
break;
// S9C: IT Filter Mode
case 0x0C:
m_dwSongFlags &= ~SONG_MPTFILTERMODE;
break;
// S9D: MPT Filter Mode
case 0x0D:
m_dwSongFlags |= SONG_MPTFILTERMODE;
break;
// S9E: Go forward
case 0x0E:
pChn->dwFlags &= ~(CHN_PINGPONGFLAG);
break;
// S9F: Go backward (set position at the end for non-looping samples)
case 0x0F:
if ((!(pChn->dwFlags & CHN_LOOP)) && (!pChn->nPos) && (pChn->nLength))
{
pChn->nPos = pChn->nLength - 1;
pChn->nPosLo = 0xFFFF;
}
pChn->dwFlags |= CHN_PINGPONGFLAG;
break;
}
}
void CSoundFile::ProcessMidiMacro(UINT nChn, LPCSTR pszMidiMacro, UINT param)
//---------------------------------------------------------------------------
{
MODCHANNEL *pChn = &Chn[nChn];
DWORD dwMacro = (*((LPDWORD)pszMidiMacro)) & 0x7F5F7F5F;
// Not Internal Device ?
if (dwMacro != 0x30463046)
{
UINT pos = 0, nNib = 0, nBytes = 0;
DWORD dwMidiCode = 0, dwByteCode = 0;
while (pos+6 <= 32)
{
CHAR cData = pszMidiMacro[pos++];
if (!cData) break;
if ((cData >= '0') && (cData <= '9')) { dwByteCode = (dwByteCode<<4) | (cData-'0'); nNib++; } else
if ((cData >= 'A') && (cData <= 'F')) { dwByteCode = (dwByteCode<<4) | (cData-'A'+10); nNib++; } else
if ((cData >= 'a') && (cData <= 'f')) { dwByteCode = (dwByteCode<<4) | (cData-'a'+10); nNib++; } else
if ((cData == 'z') || (cData == 'Z')) { dwByteCode = param & 0x7f; nNib = 2; } else
if ((cData == 'x') || (cData == 'X')) { dwByteCode = param & 0x70; nNib = 2; } else
if ((cData == 'y') || (cData == 'Y')) { dwByteCode = (param & 0x0f)<<3; nNib = 2; } else
if (nNib >= 2)
{
nNib = 0;
dwMidiCode |= dwByteCode << (nBytes*8);
dwByteCode = 0;
nBytes++;
if (nBytes >= 3)
{
UINT nMasterCh = (nChn < m_nChannels) ? nChn+1 : pChn->nMasterChn;
if ((nMasterCh) && (nMasterCh <= m_nChannels))
{
UINT nPlug = ChnSettings[nMasterCh-1].nMixPlugin;
if ((nPlug) && (nPlug <= MAX_MIXPLUGINS))
{
IMixPlugin *pPlugin = m_MixPlugins[nPlug-1].pMixPlugin;
if ((pPlugin) && (m_MixPlugins[nPlug-1].pMixState))
{
pPlugin->MidiSend(dwMidiCode);
}
}
}
nBytes = 0;
dwMidiCode = 0;
}
}
}
return;
}
// Internal device
pszMidiMacro += 4;
// Filter ?
if (pszMidiMacro[0] == '0')
{
CHAR cData1 = pszMidiMacro[2];
DWORD dwParam = 0;
if ((cData1 == 'z') || (cData1 == 'Z'))
{
dwParam = param;
} else
{
CHAR cData2 = pszMidiMacro[3];
if ((cData1 >= '0') && (cData1 <= '9')) dwParam += (cData1 - '0') << 4; else
if ((cData1 >= 'A') && (cData1 <= 'F')) dwParam += (cData1 - 'A' + 0x0A) << 4;
if ((cData2 >= '0') && (cData2 <= '9')) dwParam += (cData2 - '0'); else
if ((cData2 >= 'A') && (cData2 <= 'F')) dwParam += (cData2 - 'A' + 0x0A);
}
switch(pszMidiMacro[1])
{
// F0.F0.00.xx: Set CutOff
case '0':
{
int oldcutoff = pChn->nCutOff;
if (dwParam < 0x80) pChn->nCutOff = dwParam;
#ifndef NO_FILTER
oldcutoff -= pChn->nCutOff;
if (oldcutoff < 0) oldcutoff = -oldcutoff;
if ((pChn->nVolume > 0) || (oldcutoff < 0x10)
|| (!(pChn->dwFlags & CHN_FILTER)) || (!(pChn->nLeftVol|pChn->nRightVol)))
SetupChannelFilter(pChn, (pChn->dwFlags & CHN_FILTER) ? FALSE : TRUE);
#endif // NO_FILTER
}
break;
// F0.F0.01.xx: Set Resonance
case '1':
if (dwParam < 0x80) pChn->nResonance = dwParam;
#ifndef NO_FILTER
SetupChannelFilter(pChn, (pChn->dwFlags & CHN_FILTER) ? FALSE : TRUE);
#endif // NO_FILTER
break;
}
}
}
void CSoundFile::RetrigNote(UINT nChn, UINT param)
//------------------------------------------------
{
// Retrig: bit 8 is set if it's the new XM retrig
MODCHANNEL *pChn = &Chn[nChn];
UINT nRetrigSpeed = param & 0x0F;
UINT nRetrigCount = pChn->nRetrigCount;
BOOL bDoRetrig = FALSE;
if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))
{
if (!nRetrigSpeed) nRetrigSpeed = 1;
if ((nRetrigCount) && (!(nRetrigCount % nRetrigSpeed))) bDoRetrig = TRUE;
nRetrigCount++;
} else
{
UINT realspeed = nRetrigSpeed;
if ((param & 0x100) && (pChn->nRowVolCmd == VOLCMD_VOLUME) && (pChn->nRowParam & 0xF0)) realspeed++;
if ((m_nTickCount) || (param & 0x100))
{
if (!realspeed) realspeed = 1;
if ((!(param & 0x100)) && (m_nMusicSpeed) && (!(m_nTickCount % realspeed))) bDoRetrig = TRUE;
nRetrigCount++;
} else if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) nRetrigCount = 0;
if (nRetrigCount >= realspeed)
{
if ((m_nTickCount) || ((param & 0x100) && (!pChn->nRowNote))) bDoRetrig = TRUE;
}
}
if (bDoRetrig)
{
UINT dv = (param >> 4) & 0x0F;
if (dv)
{
int vol = pChn->nVolume;
if (retrigTable1[dv])
vol = (vol * retrigTable1[dv]) >> 4;
else
vol += ((int)retrigTable2[dv]) << 2;
if (vol < 0) vol = 0;
if (vol > 256) vol = 256;
pChn->nVolume = vol;
pChn->dwFlags |= CHN_FASTVOLRAMP;
}
UINT nNote = pChn->nNewNote;
LONG nOldPeriod = pChn->nPeriod;
if ((nNote) && (nNote <= 120) && (pChn->nLength)) CheckNNA(nChn, 0, nNote, TRUE);
BOOL bResetEnv = FALSE;
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if ((pChn->nRowInstr) && (param < 0x100)) { InstrumentChange(pChn, pChn->nRowInstr, FALSE, FALSE); bResetEnv = TRUE; }
if (param < 0x100) bResetEnv = TRUE;
}
NoteChange(nChn, nNote, FALSE, bResetEnv);
if ((m_nType & MOD_TYPE_IT) && (!pChn->nRowNote) && (nOldPeriod)) pChn->nPeriod = nOldPeriod;
if (!(m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT))) nRetrigCount = 0;
}
pChn->nRetrigCount = (BYTE)nRetrigCount;
}
void CSoundFile::DoFreqSlide(MODCHANNEL *pChn, LONG nFreqSlide)
//-------------------------------------------------------------
{
// IT Linear slides
if (!pChn->nPeriod) return;
if ((m_dwSongFlags & SONG_LINEARSLIDES) && (!(m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))))
{
if (nFreqSlide < 0)
{
UINT n = (- nFreqSlide) >> 2;
if (n > 255) n = 255;
pChn->nPeriod = _muldivr(pChn->nPeriod, LinearSlideDownTable[n], 65536);
} else
{
UINT n = (nFreqSlide) >> 2;
if (n > 255) n = 255;
pChn->nPeriod = _muldivr(pChn->nPeriod, LinearSlideUpTable[n], 65536);
}
} else
{
pChn->nPeriod += nFreqSlide;
}
if (pChn->nPeriod < 1)
{
pChn->nPeriod = 1;
if (m_nType & MOD_TYPE_IT)
{
pChn->dwFlags |= CHN_NOTEFADE;
pChn->nFadeOutVol = 0;
}
}
}
void CSoundFile::NoteCut(UINT nChn, UINT nTick)
//---------------------------------------------
{
if (m_nTickCount == nTick)
{
MODCHANNEL *pChn = &Chn[nChn];
// if (m_nInstruments) KeyOff(pChn); ?
pChn->nVolume = 0;
pChn->dwFlags |= CHN_FASTVOLRAMP;
}
}
void CSoundFile::KeyOff(UINT nChn)
//--------------------------------
{
MODCHANNEL *pChn = &Chn[nChn];
BOOL bKeyOn = (pChn->dwFlags & CHN_KEYOFF) ? FALSE : TRUE;
pChn->dwFlags |= CHN_KEYOFF;
//if ((!pChn->pHeader) || (!(pChn->dwFlags & CHN_VOLENV)))
if ((pChn->pHeader) && (!(pChn->dwFlags & CHN_VOLENV)))
{
pChn->dwFlags |= CHN_NOTEFADE;
}
if (!pChn->nLength) return;
if ((pChn->dwFlags & CHN_SUSTAINLOOP) && (pChn->pInstrument) && (bKeyOn))
{
MODINSTRUMENT *psmp = pChn->pInstrument;
if (psmp->uFlags & CHN_LOOP)
{
if (psmp->uFlags & CHN_PINGPONGLOOP)
pChn->dwFlags |= CHN_PINGPONGLOOP;
else
pChn->dwFlags &= ~(CHN_PINGPONGLOOP|CHN_PINGPONGFLAG);
pChn->dwFlags |= CHN_LOOP;
pChn->nLength = psmp->nLength;
pChn->nLoopStart = psmp->nLoopStart;
pChn->nLoopEnd = psmp->nLoopEnd;
if (pChn->nLength > pChn->nLoopEnd) pChn->nLength = pChn->nLoopEnd;
} else
{
pChn->dwFlags &= ~(CHN_LOOP|CHN_PINGPONGLOOP|CHN_PINGPONGFLAG);
pChn->nLength = psmp->nLength;
}
}
if (pChn->pHeader)
{
INSTRUMENTHEADER *penv = pChn->pHeader;
if (((penv->dwFlags & ENV_VOLLOOP) || (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))) && (penv->nFadeOut))
pChn->dwFlags |= CHN_NOTEFADE;
}
}
//////////////////////////////////////////////////////////
// CSoundFile: Global Effects
void CSoundFile::SetSpeed(UINT param)
//-----------------------------------
{
UINT max = (m_nType == MOD_TYPE_IT) ? 256 : 128;
// Modplug Tracker and Mod-Plugin don't do this check
#ifndef MODPLUG_TRACKER
#ifndef FASTSOUNDLIB
// Big Hack!!!
if ((!param) || (param >= 0x80) || ((m_nType & (MOD_TYPE_MOD|MOD_TYPE_XM|MOD_TYPE_MT2)) && (param >= 0x1E)))
{
if (IsSongFinished(m_nCurrentPattern, m_nRow+1))
{
GlobalFadeSong(1000);
}
}
#endif // FASTSOUNDLIB
#endif // MODPLUG_TRACKER
if ((m_nType & MOD_TYPE_S3M) && (param > 0x80)) param -= 0x80;
if ((param) && (param <= max)) m_nMusicSpeed = param;
}
void CSoundFile::SetTempo(UINT param)
//-----------------------------------
{
if (param < 0x20)
{
// Tempo Slide
if ((param & 0xF0) == 0x10)
{
m_nMusicTempo += (param & 0x0F) * 2;
if (m_nMusicTempo > 255) m_nMusicTempo = 255;
} else
{
m_nMusicTempo -= (param & 0x0F) * 2;
if ((LONG)m_nMusicTempo < 32) m_nMusicTempo = 32;
}
} else
{
m_nMusicTempo = param;
}
}
int CSoundFile::PatternLoop(MODCHANNEL *pChn, UINT param)
//-------------------------------------------------------
{
if (param)
{
if (pChn->nPatternLoopCount)
{
pChn->nPatternLoopCount--;
if (!pChn->nPatternLoopCount) return -1;
} else
{
MODCHANNEL *p = Chn;
for (UINT i=0; i<m_nChannels; i++, p++) if (p != pChn)
{
// Loop already done
if (p->nPatternLoopCount) return -1;
}
pChn->nPatternLoopCount = param;
}
return pChn->nPatternLoop;
} else
{
pChn->nPatternLoop = m_nRow;
}
return -1;
}
void CSoundFile::GlobalVolSlide(UINT param)
//-----------------------------------------
{
LONG nGlbSlide = 0;
if (param) m_nOldGlbVolSlide = param; else param = m_nOldGlbVolSlide;
if (((param & 0x0F) == 0x0F) && (param & 0xF0))
{
if (m_dwSongFlags & SONG_FIRSTTICK) nGlbSlide = (param >> 4) * 2;
} else
if (((param & 0xF0) == 0xF0) && (param & 0x0F))
{
if (m_dwSongFlags & SONG_FIRSTTICK) nGlbSlide = - (int)((param & 0x0F) * 2);
} else
{
if (!(m_dwSongFlags & SONG_FIRSTTICK))
{
if (param & 0xF0) nGlbSlide = (int)((param & 0xF0) >> 4) * 2;
else nGlbSlide = -(int)((param & 0x0F) * 2);
}
}
if (nGlbSlide)
{
if (m_nType != MOD_TYPE_IT) nGlbSlide *= 2;
nGlbSlide += m_nGlobalVolume;
if (nGlbSlide < 0) nGlbSlide = 0;
if (nGlbSlide > 256) nGlbSlide = 256;
m_nGlobalVolume = nGlbSlide;
}
}
DWORD CSoundFile::IsSongFinished(UINT nStartOrder, UINT nStartRow) const
//----------------------------------------------------------------------
{
UINT nOrd;
for (nOrd=nStartOrder; nOrd<MAX_ORDERS; nOrd++)
{
UINT nPat = Order[nOrd];
if (nPat != 0xFE)
{
MODCOMMAND *p;
if (nPat >= MAX_PATTERNS) break;
p = Patterns[nPat];
if (p)
{
UINT len = PatternSize[nPat] * m_nChannels;
UINT pos = (nOrd == nStartOrder) ? nStartRow : 0;
pos *= m_nChannels;
while (pos < len)
{
UINT cmd;
if ((p[pos].note) || (p[pos].volcmd)) return 0;
cmd = p[pos].command;
if (cmd == CMD_MODCMDEX)
{
UINT cmdex = p[pos].param & 0xF0;
if ((!cmdex) || (cmdex == 0x60) || (cmdex == 0xE0) || (cmdex == 0xF0)) cmd = 0;
}
if ((cmd) && (cmd != CMD_SPEED) && (cmd != CMD_TEMPO)) return 0;
pos++;
}
}
}
}
return (nOrd < MAX_ORDERS) ? nOrd : MAX_ORDERS-1;
}
BOOL CSoundFile::IsValidBackwardJump(UINT nStartOrder, UINT nStartRow, UINT nJumpOrder, UINT nJumpRow) const
//----------------------------------------------------------------------------------------------------------
{
while ((nJumpOrder < MAX_PATTERNS) && (Order[nJumpOrder] == 0xFE)) nJumpOrder++;
if ((nStartOrder >= MAX_PATTERNS) || (nJumpOrder >= MAX_PATTERNS)) return FALSE;
// Treat only case with jumps in the same pattern
if (nJumpOrder > nStartOrder) return TRUE;
if ((nJumpOrder < nStartOrder) || (nJumpRow >= PatternSize[nStartOrder])
|| (!Patterns[nStartOrder]) || (nStartRow >= 256) || (nJumpRow >= 256)) return FALSE;
// See if the pattern is being played backward
BYTE row_hist[256];
memset(row_hist, 0, sizeof(row_hist));
UINT nRows = PatternSize[nStartOrder], row = nJumpRow;
if (nRows > 256) nRows = 256;
row_hist[nStartRow] = TRUE;
while ((row < 256) && (!row_hist[row]))
{
if (row >= nRows) return TRUE;
row_hist[row] = TRUE;
MODCOMMAND *p = Patterns[nStartOrder] + row * m_nChannels;
row++;
int breakrow = -1, posjump = 0;
for (UINT i=0; i<m_nChannels; i++, p++)
{
if (p->command == CMD_POSITIONJUMP)
{
if (p->param < nStartOrder) return FALSE;
if (p->param > nStartOrder) return TRUE;
posjump = TRUE;
} else
if (p->command == CMD_PATTERNBREAK)
{
breakrow = p->param;
}
}
if (breakrow >= 0)
{
if (!posjump) return TRUE;
row = breakrow;
}
if (row >= nRows) return TRUE;
}
return FALSE;
}
//////////////////////////////////////////////////////
// Note/Period/Frequency functions
UINT CSoundFile::GetNoteFromPeriod(UINT period) const
//---------------------------------------------------
{
if (!period) return 0;
if (m_nType & (MOD_TYPE_MED|MOD_TYPE_MOD|MOD_TYPE_MTM|MOD_TYPE_669|MOD_TYPE_OKT|MOD_TYPE_AMF0))
{
period >>= 2;
for (UINT i=0; i<6*12; i++)
{
if (period >= ProTrackerPeriodTable[i])
{
if ((period != ProTrackerPeriodTable[i]) && (i))
{
UINT p1 = ProTrackerPeriodTable[i-1];
UINT p2 = ProTrackerPeriodTable[i];
if (p1 - period < (period - p2)) return i+36;
}
return i+1+36;
}
}
return 6*12+36;
} else
{
for (UINT i=1; i<120; i++)
{
LONG n = GetPeriodFromNote(i, 0, 0);
if ((n > 0) && (n <= (LONG)period)) return i;
}
return 120;
}
}
UINT CSoundFile::GetPeriodFromNote(UINT note, int nFineTune, UINT nC4Speed) const
//-------------------------------------------------------------------------------
{
if ((!note) || (note > 0xF0)) return 0;
if (m_nType & (MOD_TYPE_IT|MOD_TYPE_S3M|MOD_TYPE_STM|MOD_TYPE_MDL|MOD_TYPE_ULT|MOD_TYPE_WAV
|MOD_TYPE_FAR|MOD_TYPE_DMF|MOD_TYPE_PTM|MOD_TYPE_AMS|MOD_TYPE_DBM|MOD_TYPE_AMF|MOD_TYPE_PSM))
{
note--;
if (m_dwSongFlags & SONG_LINEARSLIDES)
{
return (FreqS3MTable[note % 12] << 5) >> (note / 12);
} else
{
if (!nC4Speed) nC4Speed = 8363;
return _muldiv(8363, (FreqS3MTable[note % 12] << 5), nC4Speed << (note / 12));
}
} else
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (note < 13) note = 13;
note -= 13;
if (m_dwSongFlags & SONG_LINEARSLIDES)
{
LONG l = ((120 - note) << 6) - (nFineTune / 2);
if (l < 1) l = 1;
return (UINT)l;
} else
{
int finetune = nFineTune;
UINT rnote = (note % 12) << 3;
UINT roct = note / 12;
int rfine = finetune / 16;
int i = rnote + rfine + 8;
if (i < 0) i = 0;
if (i >= 104) i = 103;
UINT per1 = XMPeriodTable[i];
if ( finetune < 0 )
{
rfine--;
finetune = -finetune;
} else rfine++;
i = rnote+rfine+8;
if (i < 0) i = 0;
if (i >= 104) i = 103;
UINT per2 = XMPeriodTable[i];
rfine = finetune & 0x0F;
per1 *= 16-rfine;
per2 *= rfine;
return ((per1 + per2) << 1) >> roct;
}
} else
{
note--;
nFineTune = XM2MODFineTune(nFineTune);
if ((nFineTune) || (note < 36) || (note >= 36+6*12))
return (ProTrackerTunedPeriods[nFineTune*12 + note % 12] << 5) >> (note / 12);
else
return (ProTrackerPeriodTable[note-36] << 2);
}
}
UINT CSoundFile::GetFreqFromPeriod(UINT period, UINT nC4Speed, int nPeriodFrac) const
//-----------------------------------------------------------------------------------
{
if (!period) return 0;
if (m_nType & (MOD_TYPE_MED|MOD_TYPE_MOD|MOD_TYPE_MTM|MOD_TYPE_669|MOD_TYPE_OKT|MOD_TYPE_AMF0))
{
return (3546895L*4) / period;
} else
if (m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2))
{
if (m_dwSongFlags & SONG_LINEARSLIDES)
return XMLinearTable[period % 768] >> (period / 768);
else
return 8363 * 1712L / period;
} else
{
if (m_dwSongFlags & SONG_LINEARSLIDES)
{
if (!nC4Speed) nC4Speed = 8363;
return _muldiv(nC4Speed, 1712L << 8, (period << 8)+nPeriodFrac);
} else
{
return _muldiv(8363, 1712L << 8, (period << 8)+nPeriodFrac);
}
}
}
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