// Add or remove rows from the pattern.
bool CPattern::Resize(const ROWINDEX newRowCount, bool enforceFormatLimits)
//-------------------------------------------------------------------------
{
CSoundFile &sndFile = GetSoundFile();
ModCommand *newPattern;
if(enforceFormatLimits)
{
const CModSpecifications& specs = sndFile.GetModSpecifications();
if(newRowCount > specs.patternRowsMax || newRowCount < specs.patternRowsMin) return false;
} else
{
if(newRowCount > MAX_PATTERN_ROWS || newRowCount < 1) return false;
}
if(m_ModCommands == nullptr
|| newRowCount == m_Rows
|| (newPattern = AllocatePattern(newRowCount, GetNumChannels())) == nullptr)
{
return false;
}
// Copy over pattern data
memcpy(newPattern, m_ModCommands, GetNumChannels() * std::min(m_Rows, newRowCount) * sizeof(ModCommand));
FreePattern(m_ModCommands);
m_ModCommands = newPattern;
m_Rows = newRowCount;
return true;
}
bool CPattern::Expand()
//---------------------
{
const ROWINDEX newRows = m_Rows * 2;
const CHANNELINDEX nChns = GetNumChannels();
ModCommand *newPattern;
if(!m_ModCommands
|| newRows > GetSoundFile().GetModSpecifications().patternRowsMax
|| (newPattern = AllocatePattern(newRows, nChns)) == nullptr)
{
return false;
}
for(ROWINDEX y = 0; y < m_Rows; y++)
{
memcpy(newPattern + y * 2 * nChns, m_ModCommands + y * nChns, nChns * sizeof(ModCommand));
}
FreePattern(m_ModCommands);
m_ModCommands = newPattern;
m_Rows = newRows;
return true;
}
bool CPattern::AllocatePattern(ROWINDEX rows)
//-------------------------------------------
{
ModCommand *m = m_ModCommands;
if(m != nullptr && rows == GetNumRows())
{
// Re-use allocated memory
ClearCommands();
m_ModCommands = nullptr;
} else
{
m = AllocatePattern(rows, GetNumChannels());
if(m == nullptr)
{
return false;
}
}
Deallocate();
m_ModCommands = m;
m_Rows = rows;
return true;
}
BOOL CSoundFile::ReadAMF(LPCBYTE lpStream, DWORD dwMemLength)
//-----------------------------------------------------------
{
AMFFILEHEADER *pfh = (AMFFILEHEADER *)lpStream;
DWORD dwMemPos;
if ((!lpStream) || (dwMemLength < 2048)) return FALSE;
if ((!strncmp((LPCTSTR)lpStream, "ASYLUM Music Format V1.0", 25)) && (dwMemLength > 4096))
{
UINT numorders, numpats, numsamples;
dwMemPos = 32;
numpats = lpStream[dwMemPos+3];
numorders = lpStream[dwMemPos+4];
numsamples = 64;
dwMemPos += 6;
if ((!numpats) || (numpats > MAX_PATTERNS) || (!numorders)
|| (numpats*64*32 + 294 + 37*64 >= dwMemLength)) return FALSE;
m_nType = MOD_TYPE_AMF0;
m_nChannels = 8;
m_nInstruments = 0;
m_nSamples = 31;
m_nDefaultTempo = 125;
m_nDefaultSpeed = 6;
for (UINT iOrd=0; iOrd<MAX_ORDERS; iOrd++)
{
Order[iOrd] = (iOrd < numorders) ? lpStream[dwMemPos+iOrd] : 0xFF;
}
dwMemPos = 294; // ???
for (UINT iSmp=0; iSmp<numsamples; iSmp++)
{
MODINSTRUMENT *psmp = &Ins[iSmp+1];
memcpy(m_szNames[iSmp+1], lpStream+dwMemPos, 22);
psmp->nFineTune = MOD2XMFineTune(lpStream[dwMemPos+22]);
psmp->nVolume = lpStream[dwMemPos+23];
psmp->nGlobalVol = 64;
if (psmp->nVolume > 0x40) psmp->nVolume = 0x40;
psmp->nVolume <<= 2;
psmp->nLength = *((LPDWORD)(lpStream+dwMemPos+25));
psmp->nLoopStart = *((LPDWORD)(lpStream+dwMemPos+29));
psmp->nLoopEnd = psmp->nLoopStart + *((LPDWORD)(lpStream+dwMemPos+33));
if ((psmp->nLoopEnd > psmp->nLoopStart) && (psmp->nLoopEnd <= psmp->nLength))
{
psmp->uFlags = CHN_LOOP;
} else
{
psmp->nLoopStart = psmp->nLoopEnd = 0;
}
if ((psmp->nLength) && (iSmp>31)) m_nSamples = iSmp+1;
dwMemPos += 37;
}
for (UINT iPat=0; iPat<numpats; iPat++)
{
MODCOMMAND *p = AllocatePattern(64, m_nChannels);
if (!p) break;
Patterns[iPat] = p;
PatternSize[iPat] = 64;
const UCHAR *pin = lpStream + dwMemPos;
for (UINT i=0; i<8*64; i++)
{
p->note = 0;
if (pin[0])
{
p->note = pin[0] + 13;
}
p->instr = pin[1];
p->command = pin[2];
p->param = pin[3];
if (p->command > 0x0F)
{
#ifdef AMFLOG
Log("0x%02X.0x%02X ?", p->command, p->param);
#endif
p->command = 0;
}
ConvertModCommand(p);
pin += 4;
p++;
}
dwMemPos += 64*32;
}
// Read samples
for (UINT iData=0; iData<m_nSamples; iData++)
{
MODINSTRUMENT *psmp = &Ins[iData+1];
if (psmp->nLength)
{
dwMemPos += ReadSample(psmp, RS_PCM8S, (LPCSTR)(lpStream+dwMemPos), dwMemLength);
}
}
return TRUE;
}
////////////////////////////
// DSM/AMF
USHORT *ptracks[MAX_PATTERNS];
DWORD sampleseekpos[MAX_SAMPLES];
if ((pfh->szAMF[0] != 'A') || (pfh->szAMF[1] != 'M') || (pfh->szAMF[2] != 'F')
|| (pfh->version < 10) || (pfh->version > 14) || (!pfh->numtracks)
|| (!pfh->numorders) || (pfh->numorders > MAX_PATTERNS)
|| (!pfh->numsamples) || (pfh->numsamples > MAX_SAMPLES)
|| (pfh->numchannels < 4) || (pfh->numchannels > 32))
return FALSE;
memcpy(m_szNames[0], pfh->title, 32);
dwMemPos = sizeof(AMFFILEHEADER);
m_nType = MOD_TYPE_AMF;
m_nChannels = pfh->numchannels;
m_nSamples = pfh->numsamples;
m_nInstruments = 0;
// Setup Channel Pan Positions
if (pfh->version >= 11)
{
signed char *panpos = (signed char *)(lpStream + dwMemPos);
UINT nchannels = (pfh->version >= 13) ? 32 : 16;
for (UINT i=0; i<nchannels; i++)
{
int pan = (panpos[i] + 64) * 2;
if (pan < 0) pan = 0;
if (pan > 256) { pan = 128; ChnSettings[i].dwFlags |= CHN_SURROUND; }
ChnSettings[i].nPan = pan;
}
dwMemPos += nchannels;
} else
{
for (UINT i=0; i<16; i++)
{
ChnSettings[i].nPan = (lpStream[dwMemPos+i] & 1) ? 0x30 : 0xD0;
}
dwMemPos += 16;
}
// Get Tempo/Speed
m_nDefaultTempo = 125;
m_nDefaultSpeed = 6;
if (pfh->version >= 13)
{
if (lpStream[dwMemPos] >= 32) m_nDefaultTempo = lpStream[dwMemPos];
if (lpStream[dwMemPos+1] <= 32) m_nDefaultSpeed = lpStream[dwMemPos+1];
dwMemPos += 2;
}
// Setup sequence list
for (UINT iOrd=0; iOrd<MAX_ORDERS; iOrd++)
{
Order[iOrd] = 0xFF;
if (iOrd < pfh->numorders)
{
Order[iOrd] = iOrd;
PatternSize[iOrd] = 64;
if (pfh->version >= 14)
{
PatternSize[iOrd] = *(USHORT *)(lpStream+dwMemPos);
dwMemPos += 2;
}
ptracks[iOrd] = (USHORT *)(lpStream+dwMemPos);
dwMemPos += m_nChannels * sizeof(USHORT);
}
}
if (dwMemPos + m_nSamples * (sizeof(AMFSAMPLE)+8) > dwMemLength) return TRUE;
// Read Samples
UINT maxsampleseekpos = 0;
for (UINT iIns=0; iIns<m_nSamples; iIns++)
{
MODINSTRUMENT *pins = &Ins[iIns+1];
AMFSAMPLE *psh = (AMFSAMPLE *)(lpStream + dwMemPos);
dwMemPos += sizeof(AMFSAMPLE);
memcpy(m_szNames[iIns+1], psh->samplename, 32);
memcpy(pins->name, psh->filename, 13);
pins->nLength = psh->length;
pins->nC4Speed = psh->c2spd;
pins->nGlobalVol = 64;
pins->nVolume = psh->volume * 4;
if (pfh->version >= 11)
{
pins->nLoopStart = *(DWORD *)(lpStream+dwMemPos);
pins->nLoopEnd = *(DWORD *)(lpStream+dwMemPos+4);
dwMemPos += 8;
} else
{
pins->nLoopStart = *(WORD *)(lpStream+dwMemPos);
pins->nLoopEnd = pins->nLength;
dwMemPos += 2;
}
sampleseekpos[iIns] = 0;
if ((psh->type) && (psh->offset < dwMemLength-1))
{
sampleseekpos[iIns] = psh->offset;
if (psh->offset > maxsampleseekpos) maxsampleseekpos = psh->offset;
if ((pins->nLoopEnd > pins->nLoopStart + 2)
&& (pins->nLoopEnd <= pins->nLength)) pins->uFlags |= CHN_LOOP;
}
}
// Read Track Mapping Table
USHORT *pTrackMap = (USHORT *)(lpStream+dwMemPos);
UINT realtrackcnt = 0;
dwMemPos += pfh->numtracks * sizeof(USHORT);
for (UINT iTrkMap=0; iTrkMap<pfh->numtracks; iTrkMap++)
{
if (realtrackcnt < pTrackMap[iTrkMap]) realtrackcnt = pTrackMap[iTrkMap];
}
// Store tracks positions
BYTE **pTrackData = new BYTE *[realtrackcnt];
memset(pTrackData, 0, sizeof(pTrackData));
for (UINT iTrack=0; iTrack<realtrackcnt; iTrack++) if (dwMemPos + 3 <= dwMemLength)
{
UINT nTrkSize = *(USHORT *)(lpStream+dwMemPos);
nTrkSize += (UINT)lpStream[dwMemPos+2] << 16;
if (dwMemPos + nTrkSize * 3 + 3 <= dwMemLength)
{
pTrackData[iTrack] = (BYTE *)(lpStream + dwMemPos);
}
dwMemPos += nTrkSize * 3 + 3;
}
// Create the patterns from the list of tracks
for (UINT iPat=0; iPat<pfh->numorders; iPat++)
{
MODCOMMAND *p = AllocatePattern(PatternSize[iPat], m_nChannels);
if (!p) break;
Patterns[iPat] = p;
for (UINT iChn=0; iChn<m_nChannels; iChn++)
{
UINT nTrack = ptracks[iPat][iChn];
if ((nTrack) && (nTrack <= pfh->numtracks))
{
UINT realtrk = pTrackMap[nTrack-1];
if (realtrk)
{
realtrk--;
if ((realtrk < realtrackcnt) && (pTrackData[realtrk]))
{
AMF_Unpack(p+iChn, pTrackData[realtrk], PatternSize[iPat], m_nChannels);
}
}
}
}
}
delete pTrackData;
// Read Sample Data
for (UINT iSeek=1; iSeek<=maxsampleseekpos; iSeek++)
{
if (dwMemPos >= dwMemLength) break;
for (UINT iSmp=0; iSmp<m_nSamples; iSmp++) if (iSeek == sampleseekpos[iSmp])
{
MODINSTRUMENT *pins = &Ins[iSmp+1];
dwMemPos += ReadSample(pins, RS_PCM8U, (LPCSTR)(lpStream+dwMemPos), dwMemLength-dwMemPos);
break;
}
}
return TRUE;
}
BOOL CSoundFile::ReadPSM(LPCBYTE lpStream, DWORD dwMemLength)
//-----------------------------------------------------------
{
PSMCHUNK *pfh = (PSMCHUNK *)lpStream;
DWORD dwMemPos, dwSongPos;
// DWORD smpnames[MAX_SAMPLES];
DWORD patptrs[MAX_PATTERNS];
BYTE samplemap[MAX_SAMPLES];
UINT nPatterns;
// Swap chunk
swap_PSMCHUNK(pfh);
// Chunk0: "PSM ",filesize,"FILE"
if (dwMemLength < 256) return FALSE;
if (pfh->id == PSM_ID_OLD)
{
#ifdef PSM_LOG
Log("Old PSM format not supported\n");
#endif
return FALSE;
}
if ((pfh->id != PSM_ID_NEW) || (pfh->len+12 > dwMemLength) || (pfh->listid != IFFID_FILE)) return FALSE;
m_nType = MOD_TYPE_PSM;
m_nChannels = 16;
m_nSamples = 0;
nPatterns = 0;
dwMemPos = 12;
dwSongPos = 0;
for (UINT iChPan=0; iChPan<16; iChPan++)
{
UINT pan = (((iChPan & 3) == 1) || ((iChPan&3)==2)) ? 0xC0 : 0x40;
ChnSettings[iChPan].nPan = pan;
}
while (dwMemPos+8 < dwMemLength)
{
PSMCHUNK *pchunk = (PSMCHUNK *)(lpStream+dwMemPos);
swap_PSMCHUNK(pchunk);
if ((pchunk->len >= dwMemLength - 8) || (dwMemPos + pchunk->len + 8 > dwMemLength)) break;
dwMemPos += 8;
PUCHAR pdata = (PUCHAR)(lpStream+dwMemPos);
ULONG len = pchunk->len;
if (len) switch(pchunk->id)
{
// "TITL": Song title
case IFFID_TITL:
if (!pdata[0]) { pdata++; len--; }
memcpy(m_szNames[0], pdata, (len>31) ? 31 : len);
m_szNames[0][31] = 0;
break;
// "PBOD": Pattern
case IFFID_PBOD:
if ((len >= 12) && (nPatterns < MAX_PATTERNS))
{
patptrs[nPatterns++] = dwMemPos-8;
}
break;
// "SONG": Song description
case IFFID_SONG:
if ((len >= sizeof(PSMSONGHDR)+8) && (!dwSongPos))
{
dwSongPos = dwMemPos - 8;
}
break;
// "DSMP": Sample Data
case IFFID_DSMP:
if ((len >= sizeof(PSMSAMPLE)) && (m_nSamples+1 < MAX_SAMPLES))
{
m_nSamples++;
MODINSTRUMENT *pins = &Ins[m_nSamples];
PSMSAMPLE *psmp = (PSMSAMPLE *)pdata;
swap_PSMSAMPLE(psmp);
// smpnames[m_nSamples] = psmp->smpid;
memcpy(m_szNames[m_nSamples], psmp->samplename, 31);
m_szNames[m_nSamples][31] = 0;
samplemap[m_nSamples-1] = (BYTE)m_nSamples;
// Init sample
pins->nGlobalVol = 0x40;
pins->nC4Speed = psmp->samplerate;
pins->nLength = psmp->length;
pins->nLoopStart = psmp->loopstart;
pins->nLoopEnd = psmp->loopend;
pins->nPan = 128;
pins->nVolume = (psmp->defvol+1) * 2;
pins->uFlags = (psmp->flags & 0x80) ? CHN_LOOP : 0;
if (pins->nLoopStart > 0) pins->nLoopStart--;
// Point to sample data
pdata += 0x60;
len -= 0x60;
// Load sample data
if ((pins->nLength > 3) && (len > 3))
{
ReadSample(pins, RS_PCM8D, (LPCSTR)pdata, len);
} else
{
pins->nLength = 0;
}
}
break;
#if 0
default:
{
CHAR s[8], s2[64];
*(DWORD *)s = pchunk->id;
s[4] = 0;
wsprintf(s2, "%s: %4d bytes @ %4d\n", s, pchunk->len, dwMemPos);
OutputDebugString(s2);
}
#endif
}
dwMemPos += pchunk->len;
}
// Step #1: convert song structure
PSMSONGHDR *pSong = (PSMSONGHDR *)(lpStream+dwSongPos+8);
if ((!dwSongPos) || (pSong->channels < 2) || (pSong->channels > 32)) return TRUE;
m_nChannels = pSong->channels;
// Valid song header -> convert attached chunks
{
DWORD dwSongEnd = dwSongPos + 8 + *(DWORD *)(lpStream+dwSongPos+4);
dwMemPos = dwSongPos + 8 + 11; // sizeof(PSMCHUNK)+sizeof(PSMSONGHDR)
while (dwMemPos + 8 < dwSongEnd)
{
PSMCHUNK *pchunk = (PSMCHUNK *)(lpStream+dwMemPos);
swap_PSMCHUNK(pchunk);
dwMemPos += 8;
if ((pchunk->len > dwSongEnd) || (dwMemPos + pchunk->len > dwSongEnd)) break;
PUCHAR pdata = (PUCHAR)(lpStream+dwMemPos);
ULONG len = pchunk->len;
switch(pchunk->id)
{
case IFFID_OPLH:
if (len >= 0x20)
{
UINT pos = len - 3;
while (pos > 5)
{
BOOL bFound = FALSE;
pos -= 5;
DWORD dwName = *(DWORD *)(pdata+pos);
for (UINT i=0; i<nPatterns; i++)
{
DWORD dwPatName = ((PSMPATTERN *)(lpStream+patptrs[i]+8))->name;
if (dwName == dwPatName)
{
bFound = TRUE;
break;
}
}
if ((!bFound) && (pdata[pos+1] > 0) && (pdata[pos+1] <= 0x10)
&& (pdata[pos+3] > 0x40) && (pdata[pos+3] < 0xC0))
{
m_nDefaultSpeed = pdata[pos+1];
m_nDefaultTempo = pdata[pos+3];
break;
}
}
UINT iOrd = 0;
while ((pos+5<len) && (iOrd < MAX_ORDERS))
{
DWORD dwName = *(DWORD *)(pdata+pos);
for (UINT i=0; i<nPatterns; i++)
{
DWORD dwPatName = ((PSMPATTERN *)(lpStream+patptrs[i]+8))->name;
if (dwName == dwPatName)
{
Order[iOrd++] = i;
break;
}
}
pos += 5;
}
}
break;
}
dwMemPos += pchunk->len;
}
}
// Step #2: convert patterns
for (UINT nPat=0; nPat<nPatterns; nPat++)
{
PSMPATTERN *pPsmPat = (PSMPATTERN *)(lpStream+patptrs[nPat]+8);
swap_PSMPATTERN(pPsmPat);
ULONG len = *(DWORD *)(lpStream+patptrs[nPat]+4) - 12;
UINT nRows = pPsmPat->rows;
if (len > pPsmPat->size) len = pPsmPat->size;
if ((nRows < 64) || (nRows > 256)) nRows = 64;
PatternSize[nPat] = nRows;
if ((Patterns[nPat] = AllocatePattern(nRows, m_nChannels)) == NULL) break;
MODCOMMAND *m = Patterns[nPat];
BYTE *p = pPsmPat->data;
UINT pos = 0;
UINT row = 0;
UINT oldch = 0;
// BOOL bNewRow = FALSE;
#ifdef PSM_LOG
Log("Pattern %d at offset 0x%04X\n", nPat, (DWORD)(p - (BYTE *)lpStream));
#endif
while ((row < nRows) && (pos+1 < len))
{
UINT flags = p[pos++];
UINT ch = p[pos++];
#ifdef PSM_LOG
//Log("flags+ch: %02X.%02X\n", flags, ch);
#endif
if (((flags & 0xf0) == 0x10) && (ch <= oldch) /*&& (!bNewRow)*/)
{
if ((pos+1<len) && (!(p[pos] & 0x0f)) && (p[pos+1] < m_nChannels))
{
#ifdef PSM_LOG
//if (!nPat) Log("Continuing on new row\n");
#endif
row++;
m += m_nChannels;
oldch = ch;
continue;
}
}
if ((pos >= len) || (row >= nRows)) break;
if (!(flags & 0xf0))
{
#ifdef PSM_LOG
//if (!nPat) Log("EOR(%d): %02X.%02X\n", row, p[pos], p[pos+1]);
#endif
row++;
m += m_nChannels;
// bNewRow = TRUE;
oldch = ch;
continue;
}
// bNewRow = FALSE;
if (ch >= m_nChannels)
{
#ifdef PSM_LOG
if (!nPat) Log("Invalid channel row=%d (0x%02X.0x%02X)\n", row, flags, ch);
#endif
ch = 0;
}
// Note + Instr
if ((flags & 0x40) && (pos+1 < len))
{
UINT note = p[pos++];
UINT nins = p[pos++];
#ifdef PSM_LOG
//if (!nPat) Log("note+ins: %02X.%02X\n", note, nins);
if ((!nPat) && (nins >= m_nSamples)) Log("WARNING: invalid instrument number (%d)\n", nins);
#endif
if ((note) && (note < 0x80)) note = (note>>4)*12+(note&0x0f)+12+1;
m[ch].instr = samplemap[nins];
m[ch].note = note;
}
// Volume
if ((flags & 0x20) && (pos < len))
{
m[ch].volcmd = VOLCMD_VOLUME;
m[ch].vol = p[pos++] / 2;
}
// Effect
if ((flags & 0x10) && (pos+1 < len))
{
UINT command = p[pos++];
UINT param = p[pos++];
// Convert effects
switch(command)
{
// 01: fine volslide up
case 0x01: command = CMD_VOLUMESLIDE; param |= 0x0f; break;
// 04: fine volslide down
case 0x04: command = CMD_VOLUMESLIDE; param>>=4; param |= 0xf0; break;
// 0C: portamento up
case 0x0C: command = CMD_PORTAMENTOUP; param = (param+1)/2; break;
// 0E: portamento down
case 0x0E: command = CMD_PORTAMENTODOWN; param = (param+1)/2; break;
// 33: Position Jump
case 0x33: command = CMD_POSITIONJUMP; break;
// 34: Pattern break
case 0x34: command = CMD_PATTERNBREAK; break;
// 3D: speed
case 0x3D: command = CMD_SPEED; break;
// 3E: tempo
case 0x3E: command = CMD_TEMPO; break;
// Unknown
default:
#ifdef PSM_LOG
Log("Unknown PSM effect pat=%d row=%d ch=%d: %02X.%02X\n", nPat, row, ch, command, param);
#endif
command = param = 0;
}
m[ch].command = (BYTE)command;
m[ch].param = (BYTE)param;
}
oldch = ch;
}
BOOL CSoundFile::ReadDMF(const BYTE *lpStream, DWORD dwMemLength)
//---------------------------------------------------------------
{
const DMFHEADER *pfh = (DMFHEADER *)lpStream;
DMFINFO *psi;
DMFSEQU *sequ;
DWORD dwMemPos;
BYTE infobyte[32];
BYTE smplflags[MAX_SAMPLES], hasSMPI = 0;
if((!lpStream) || (dwMemLength < 1024)) return FALSE;
if((pfh->id != 0x464d4444) || (!pfh->version) || (pfh->version & 0xF0)) return FALSE;
dwMemPos = 66;
memcpy(m_szNames[0], pfh->songname, 30);
m_szNames[0][30] = 0;
m_nType = MOD_TYPE_DMF;
m_nChannels = 0;
#ifdef DMFLOG
Log("DMF version %d: \"%s\": %d bytes (0x%04X)\n", pfh->version, m_szNames[0], dwMemLength, dwMemLength);
#endif
while(dwMemPos + 7 < dwMemLength)
{
DWORD id = *((LPDWORD)(lpStream + dwMemPos));
switch(id)
{
// "INFO"
case 0x4f464e49:
// "CMSG"
case 0x47534d43:
psi = (DMFINFO *)(lpStream + dwMemPos);
if(id == 0x47534d43) dwMemPos++;
if((psi->infosize > dwMemLength) || (psi->infosize + dwMemPos + 8 > dwMemLength)) goto dmfexit;
if((psi->infosize >= 8) && (!m_lpszSongComments))
{
m_lpszSongComments = new char[psi->infosize]; // changed from CHAR
if(m_lpszSongComments)
{
for(UINT i = 0; i < psi->infosize - 1; i++)
{
CHAR c = lpStream[dwMemPos + 8 + i];
if((i % 40) == 39)
m_lpszSongComments[i] = 0x0d;
else
m_lpszSongComments[i] = (c < ' ') ? ' ' : c;
}
m_lpszSongComments[psi->infosize - 1] = 0;
}
}
dwMemPos += psi->infosize + 8 - 1;
break;
// "SEQU"
case 0x55514553:
sequ = (DMFSEQU *)(lpStream + dwMemPos);
if((sequ->seqsize >= dwMemLength) || (dwMemPos + sequ->seqsize + 12 > dwMemLength)) goto dmfexit;
{
UINT nseq = sequ->seqsize >> 1;
if(nseq >= MAX_ORDERS - 1) nseq = MAX_ORDERS - 1;
if(sequ->loopstart < nseq) m_nRestartPos = sequ->loopstart;
for(UINT i = 0; i < nseq; i++) Order[i] = (BYTE)sequ->sequ[i];
}
dwMemPos += sequ->seqsize + 8;
break;
// "PATT"
case 0x54544150:
if(!m_nChannels)
{
DMFPATT *patt = (DMFPATT *)(lpStream + dwMemPos);
UINT numpat;
DWORD dwPos = dwMemPos + 11;
if((patt->patsize >= dwMemLength) || (dwMemPos + patt->patsize + 8 > dwMemLength)) goto dmfexit;
numpat = patt->numpat;
if(numpat > MAX_PATTERNS) numpat = MAX_PATTERNS;
m_nChannels = patt->tracks;
if(m_nChannels < patt->firstpatinfo) m_nChannels = patt->firstpatinfo;
if(m_nChannels > 32) m_nChannels = 32;
if(m_nChannels < 4) m_nChannels = 4;
for(UINT npat = 0; npat < numpat; npat++)
{
DMFTRACK *pt = (DMFTRACK *)(lpStream + dwPos);
#ifdef DMFLOG
Log("Pattern #%d: %d tracks, %d rows\n", npat, pt->tracks, pt->ticks);
#endif
UINT tracks = pt->tracks;
if(tracks > 32) tracks = 32;
UINT ticks = pt->ticks;
if(ticks > 256) ticks = 256;
if(ticks < 16) ticks = 16;
dwPos += 8;
if((pt->jmpsize >= dwMemLength) || (dwPos + pt->jmpsize + 4 >= dwMemLength)) break;
PatternSize[npat] = (WORD)ticks;
MODCOMMAND *m = AllocatePattern(PatternSize[npat], m_nChannels);
if(!m) goto dmfexit;
Patterns[npat] = m;
DWORD d = dwPos;
dwPos += pt->jmpsize;
UINT ttype = 1;
UINT tempo = 125;
UINT glbinfobyte = 0;
UINT pbeat = (pt->beat & 0xf0) ? pt->beat >> 4 : 8;
BOOL tempochange = (pt->beat & 0xf0) ? TRUE : FALSE;
memset(infobyte, 0, sizeof(infobyte));
for(UINT row = 0; row < ticks; row++)
{
MODCOMMAND *p = &m[row * m_nChannels];
// Parse track global effects
if(!glbinfobyte)
{
BYTE info = lpStream[d++];
BYTE infoval = 0;
if((info & 0x80) && (d < dwPos)) glbinfobyte = lpStream[d++];
info &= 0x7f;
if((info) && (d < dwPos)) infoval = lpStream[d++];
switch(info)
{
case 1:
ttype = 0;
tempo = infoval;
tempochange = TRUE;
break;
case 2:
ttype = 1;
tempo = infoval;
tempochange = TRUE;
break;
case 3:
pbeat = infoval >> 4;
tempochange = ttype;
break;
#ifdef DMFLOG
default:
if(info) Log("GLB: %02X.%02X\n", info, infoval);
#endif
}
}
else
glbinfobyte--;
// Parse channels
for(UINT i = 0; i < tracks; i++) if(!infobyte[i])
{
MODCOMMAND cmd = {0, 0, 0, 0, 0, 0};
BYTE info = lpStream[d++];
if(info & 0x80) infobyte[i] = lpStream[d++];
// Instrument
if(info & 0x40)
cmd.instr = lpStream[d++];
// Note
if(info & 0x20)
{
cmd.note = lpStream[d++];
if((cmd.note) && (cmd.note < 0xfe)) cmd.note &= 0x7f;
if((cmd.note) && (cmd.note < 128)) cmd.note += 24;
}
// Volume
if(info & 0x10)
{
cmd.volcmd = VOLCMD_VOLUME;
cmd.vol = (lpStream[d++] + 3) >> 2;
}
// Effect 1
if(info & 0x08)
{
BYTE efx = lpStream[d++];
BYTE eval = lpStream[d++];
switch(efx)
{
// 1: Key Off
case 1:
if(!cmd.note) cmd.note = 0xFE;
break;
// 2: Set Loop
// 4: Sample Delay
case 4:
if(eval & 0xe0)
{
cmd.command = CMD_S3MCMDEX;
cmd.param = (eval >> 5) | 0xD0;
}
break;
// 5: Retrig
case 5:
if(eval & 0xe0)
{
cmd.command = CMD_RETRIG;
cmd.param = (eval >> 5);
}
break;
// 6: Offset
case 6:
cmd.command = CMD_OFFSET;
cmd.param = eval;
break;
#ifdef DMFLOG
default:
Log("FX1: %02X.%02X\n", efx, eval);
#endif
}
BOOL CSoundFile::ReadXM(const BYTE *lpStream, DWORD dwMemLength)
//--------------------------------------------------------------
{
XMSAMPLEHEADER xmsh;
XMSAMPLESTRUCT xmss;
DWORD dwMemPos, dwHdrSize;
WORD norders=0, restartpos=0, channels=0, patterns=0, instruments=0;
WORD xmflags=0, deftempo=125, defspeed=6;
BOOL InstUsed[256];
BYTE channels_used[MAX_CHANNELS];
BYTE pattern_map[256];
BOOL samples_used[MAX_SAMPLES];
UINT unused_samples;
tagXMFILEHEADER xmhead;
m_nChannels = 0;
if ((!lpStream) || (dwMemLength < 0x200)) return FALSE;
if (strncmp((LPCSTR)lpStream, "Extended Module:", 16)) return FALSE;
memcpy(m_szNames[0], lpStream+17, 20);
xmhead = *(tagXMFILEHEADER *)(lpStream+60);
dwHdrSize = bswapLE32(xmhead.size);
norders = bswapLE16(xmhead.norder);
if ((!norders) || (norders > MAX_ORDERS)) return FALSE;
restartpos = bswapLE16(xmhead.restartpos);
channels = bswapLE16(xmhead.channels);
if ((!channels) || (channels > 64)) return FALSE;
m_nType = MOD_TYPE_XM;
m_nMinPeriod = 27;
m_nMaxPeriod = 54784;
m_nChannels = channels;
if (restartpos < norders) m_nRestartPos = restartpos;
patterns = bswapLE16(xmhead.patterns);
if (patterns > 256) patterns = 256;
instruments = bswapLE16(xmhead.instruments);
if (instruments >= MAX_INSTRUMENTS) instruments = MAX_INSTRUMENTS-1;
m_nInstruments = instruments;
m_nSamples = 0;
xmflags = bswapLE16(xmhead.flags);
if (xmflags & 1) m_dwSongFlags |= SONG_LINEARSLIDES;
if (xmflags & 0x1000) m_dwSongFlags |= SONG_EXFILTERRANGE;
defspeed = bswapLE16(xmhead.speed);
deftempo = bswapLE16(xmhead.tempo);
if ((deftempo >= 32) && (deftempo < 256)) m_nDefaultTempo = deftempo;
if ((defspeed > 0) && (defspeed < 40)) m_nDefaultSpeed = defspeed;
memcpy(Order, lpStream+80, norders);
memset(InstUsed, 0, sizeof(InstUsed));
if (patterns > MAX_PATTERNS)
{
UINT i, j;
for (i=0; i<norders; i++)
{
if (Order[i] < patterns) InstUsed[Order[i]] = TRUE;
}
j = 0;
for (i=0; i<256; i++)
{
if (InstUsed[i]) pattern_map[i] = j++;
}
for (i=0; i<256; i++)
{
if (!InstUsed[i])
{
pattern_map[i] = (j < MAX_PATTERNS) ? j : 0xFE;
j++;
}
}
for (i=0; i<norders; i++)
{
Order[i] = pattern_map[Order[i]];
}
} else
{
for (UINT i=0; i<256; i++) pattern_map[i] = i;
}
memset(InstUsed, 0, sizeof(InstUsed));
dwMemPos = dwHdrSize + 60;
if (dwMemPos + 8 >= dwMemLength) return TRUE;
// Reading patterns
memset(channels_used, 0, sizeof(channels_used));
for (UINT ipat=0; ipat<patterns; ipat++)
{
UINT ipatmap = pattern_map[ipat];
DWORD dwSize = 0;
WORD rows=64, packsize=0;
dwSize = bswapLE32(loadDWORD(lpStream+dwMemPos));
while ((dwMemPos + dwSize >= dwMemLength) || (dwSize & 0xFFFFFF00))
{
if (dwMemPos + 4 >= dwMemLength) break;
dwMemPos++;
dwSize = bswapLE32(loadDWORD(lpStream+dwMemPos));
}
rows = bswapLE16(loadWORD(lpStream+dwMemPos+5));
if ((!rows) || (rows > 256)) rows = 64;
packsize = bswapLE16(loadWORD(lpStream+dwMemPos+7));
if (dwMemPos + dwSize + 4 > dwMemLength) return TRUE;
dwMemPos += dwSize;
if (dwMemPos + packsize + 4 > dwMemLength) return TRUE;
MODCOMMAND *p;
if (ipatmap < MAX_PATTERNS)
{
PatternSize[ipatmap] = rows;
if ((Patterns[ipatmap] = AllocatePattern(rows, m_nChannels)) == NULL) return TRUE;
if (!packsize) continue;
p = Patterns[ipatmap];
} else p = NULL;
const BYTE *src = lpStream+dwMemPos;
UINT j=0;
for (UINT row=0; row<rows; row++)
{
for (UINT chn=0; chn<m_nChannels; chn++)
{
if ((p) && (j < packsize))
{
BYTE b = src[j++];
UINT vol = 0;
if (b & 0x80)
{
if (b & 1) p->note = src[j++];
if (b & 2) p->instr = src[j++];
if (b & 4) vol = src[j++];
if (b & 8) p->command = src[j++];
if (b & 16) p->param = src[j++];
} else
{
p->note = b;
p->instr = src[j++];
vol = src[j++];
p->command = src[j++];
p->param = src[j++];
}
if (p->note == 97) p->note = 0xFF; else
if ((p->note) && (p->note < 97)) p->note += 12;
if (p->note) channels_used[chn] = 1;
if (p->command | p->param) ConvertModCommand(p);
if (p->instr == 0xff) p->instr = 0;
if (p->instr) InstUsed[p->instr] = TRUE;
if ((vol >= 0x10) && (vol <= 0x50))
{
p->volcmd = VOLCMD_VOLUME;
p->vol = vol - 0x10;
} else
if (vol >= 0x60)
{
UINT v = vol & 0xF0;
vol &= 0x0F;
p->vol = vol;
switch(v)
{
// 60-6F: Volume Slide Down
case 0x60: p->volcmd = VOLCMD_VOLSLIDEDOWN; break;
// 70-7F: Volume Slide Up:
case 0x70: p->volcmd = VOLCMD_VOLSLIDEUP; break;
// 80-8F: Fine Volume Slide Down
case 0x80: p->volcmd = VOLCMD_FINEVOLDOWN; break;
// 90-9F: Fine Volume Slide Up
case 0x90: p->volcmd = VOLCMD_FINEVOLUP; break;
// A0-AF: Set Vibrato Speed
case 0xA0: p->volcmd = VOLCMD_VIBRATOSPEED; break;
// B0-BF: Vibrato
case 0xB0: p->volcmd = VOLCMD_VIBRATO; break;
// C0-CF: Set Panning
case 0xC0: p->volcmd = VOLCMD_PANNING; p->vol = (vol << 2) + 2; break;
// D0-DF: Panning Slide Left
case 0xD0: p->volcmd = VOLCMD_PANSLIDELEFT; break;
// E0-EF: Panning Slide Right
case 0xE0: p->volcmd = VOLCMD_PANSLIDERIGHT; break;
// F0-FF: Tone Portamento
case 0xF0: p->volcmd = VOLCMD_TONEPORTAMENTO; break;
}
}
p++;
} else
if (j < packsize)
{
BYTE b = src[j++];
if (b & 0x80)
{
if (b & 1) j++;
if (b & 2) j++;
if (b & 4) j++;
if (b & 8) j++;
if (b & 16) j++;
} else j += 4;
} else break;
}
}
dwMemPos += packsize;
}
// Wrong offset check
while (dwMemPos + 4 < dwMemLength)
{
DWORD d = bswapLE32(loadDWORD(lpStream+dwMemPos));
if (d < 0x300) break;
dwMemPos++;
}
memset(samples_used, 0, sizeof(samples_used));
unused_samples = 0;
// Reading instruments
for (UINT iIns=1; iIns<=instruments; iIns++)
{
XMINSTRUMENTHEADER *pih;
BYTE flags[32];
DWORD samplesize[32];
UINT samplemap[32];
WORD nsamples;
if (dwMemPos + sizeof(XMINSTRUMENTHEADER) >= dwMemLength) return TRUE;
pih = (XMINSTRUMENTHEADER *)(lpStream+dwMemPos);
if (dwMemPos + bswapLE32(pih->size) > dwMemLength) return TRUE;
if ((Headers[iIns] = new INSTRUMENTHEADER) == NULL) continue;
memset(Headers[iIns], 0, sizeof(INSTRUMENTHEADER));
memcpy(Headers[iIns]->name, pih->name, 22);
if ((nsamples = pih->samples) > 0)
{
if (dwMemPos + sizeof(XMSAMPLEHEADER) > dwMemLength) return TRUE;
memcpy(&xmsh, lpStream+dwMemPos+sizeof(XMINSTRUMENTHEADER), sizeof(XMSAMPLEHEADER));
xmsh.shsize = bswapLE32(xmsh.shsize);
for (int i = 0; i < 24; ++i) {
xmsh.venv[i] = bswapLE16(xmsh.venv[i]);
xmsh.penv[i] = bswapLE16(xmsh.penv[i]);
}
xmsh.volfade = bswapLE16(xmsh.volfade);
xmsh.res = bswapLE16(xmsh.res);
dwMemPos += bswapLE32(pih->size);
} else
{
if (bswapLE32(pih->size)) dwMemPos += bswapLE32(pih->size);
else dwMemPos += sizeof(XMINSTRUMENTHEADER);
continue;
}
memset(samplemap, 0, sizeof(samplemap));
if (nsamples > 32) return TRUE;
UINT newsamples = m_nSamples;
for (UINT nmap=0; nmap<nsamples; nmap++)
{
UINT n = m_nSamples+nmap+1;
if (n >= MAX_SAMPLES)
{
n = m_nSamples;
while (n > 0)
{
if (!Ins[n].pSample)
{
for (UINT xmapchk=0; xmapchk < nmap; xmapchk++)
{
if (samplemap[xmapchk] == n) goto alreadymapped;
}
for (UINT clrs=1; clrs<iIns; clrs++) if (Headers[clrs])
{
INSTRUMENTHEADER *pks = Headers[clrs];
for (UINT ks=0; ks<128; ks++)
{
if (pks->Keyboard[ks] == n) pks->Keyboard[ks] = 0;
}
}
break;
}
alreadymapped:
n--;
}
#ifndef MODPLUG_FASTSOUNDLIB
// Damn! more than 200 samples: look for duplicates
if (!n)
{
if (!unused_samples)
{
unused_samples = DetectUnusedSamples(samples_used);
if (!unused_samples) unused_samples = 0xFFFF;
}
if ((unused_samples) && (unused_samples != 0xFFFF))
{
for (UINT iext=m_nSamples; iext>=1; iext--) if (!samples_used[iext])
{
unused_samples--;
samples_used[iext] = TRUE;
DestroySample(iext);
n = iext;
for (UINT mapchk=0; mapchk<nmap; mapchk++)
{
if (samplemap[mapchk] == n) samplemap[mapchk] = 0;
}
for (UINT clrs=1; clrs<iIns; clrs++) if (Headers[clrs])
{
INSTRUMENTHEADER *pks = Headers[clrs];
for (UINT ks=0; ks<128; ks++)
{
if (pks->Keyboard[ks] == n) pks->Keyboard[ks] = 0;
}
}
memset(&Ins[n], 0, sizeof(Ins[0]));
break;
}
}
}
#endif // MODPLUG_FASTSOUNDLIB
}
if (newsamples < n) newsamples = n;
samplemap[nmap] = n;
}
m_nSamples = newsamples;
// Reading Volume Envelope
INSTRUMENTHEADER *penv = Headers[iIns];
penv->nMidiProgram = pih->type;
penv->nFadeOut = xmsh.volfade;
penv->nPan = 128;
penv->nPPC = 5*12;
if (xmsh.vtype & 1) penv->dwFlags |= ENV_VOLUME;
if (xmsh.vtype & 2) penv->dwFlags |= ENV_VOLSUSTAIN;
if (xmsh.vtype & 4) penv->dwFlags |= ENV_VOLLOOP;
if (xmsh.ptype & 1) penv->dwFlags |= ENV_PANNING;
if (xmsh.ptype & 2) penv->dwFlags |= ENV_PANSUSTAIN;
if (xmsh.ptype & 4) penv->dwFlags |= ENV_PANLOOP;
if (xmsh.vnum > 12) xmsh.vnum = 12;
if (xmsh.pnum > 12) xmsh.pnum = 12;
penv->nVolEnv = xmsh.vnum;
if (!xmsh.vnum) penv->dwFlags &= ~ENV_VOLUME;
if (!xmsh.pnum) penv->dwFlags &= ~ENV_PANNING;
penv->nPanEnv = xmsh.pnum;
penv->nVolSustainBegin = penv->nVolSustainEnd = xmsh.vsustain;
if (xmsh.vsustain >= 12) penv->dwFlags &= ~ENV_VOLSUSTAIN;
penv->nVolLoopStart = xmsh.vloops;
penv->nVolLoopEnd = xmsh.vloope;
if (penv->nVolLoopEnd >= 12) penv->nVolLoopEnd = 0;
if (penv->nVolLoopStart >= penv->nVolLoopEnd) penv->dwFlags &= ~ENV_VOLLOOP;
penv->nPanSustainBegin = penv->nPanSustainEnd = xmsh.psustain;
if (xmsh.psustain >= 12) penv->dwFlags &= ~ENV_PANSUSTAIN;
penv->nPanLoopStart = xmsh.ploops;
penv->nPanLoopEnd = xmsh.ploope;
if (penv->nPanLoopEnd >= 12) penv->nPanLoopEnd = 0;
if (penv->nPanLoopStart >= penv->nPanLoopEnd) penv->dwFlags &= ~ENV_PANLOOP;
penv->nGlobalVol = 64;
for (UINT ienv=0; ienv<12; ienv++)
{
penv->VolPoints[ienv] = (WORD)xmsh.venv[ienv*2];
penv->VolEnv[ienv] = (BYTE)xmsh.venv[ienv*2+1];
penv->PanPoints[ienv] = (WORD)xmsh.penv[ienv*2];
penv->PanEnv[ienv] = (BYTE)xmsh.penv[ienv*2+1];
if (ienv)
{
if (penv->VolPoints[ienv] < penv->VolPoints[ienv-1])
{
penv->VolPoints[ienv] &= 0xFF;
penv->VolPoints[ienv] += penv->VolPoints[ienv-1] & 0xFF00;
if (penv->VolPoints[ienv] < penv->VolPoints[ienv-1]) penv->VolPoints[ienv] += 0x100;
}
if (penv->PanPoints[ienv] < penv->PanPoints[ienv-1])
{
penv->PanPoints[ienv] &= 0xFF;
penv->PanPoints[ienv] += penv->PanPoints[ienv-1] & 0xFF00;
if (penv->PanPoints[ienv] < penv->PanPoints[ienv-1]) penv->PanPoints[ienv] += 0x100;
}
}
}
for (UINT j=0; j<96; j++)
{
penv->NoteMap[j+12] = j+1+12;
if (xmsh.snum[j] < nsamples)
penv->Keyboard[j+12] = samplemap[xmsh.snum[j]];
}
// Reading samples
for (UINT ins=0; ins<nsamples; ins++)
{
if ((dwMemPos + sizeof(xmss) > dwMemLength)
|| (dwMemPos + xmsh.shsize > dwMemLength)) return TRUE;
memcpy(&xmss, lpStream+dwMemPos, sizeof(xmss));
xmss.samplen = bswapLE32(xmss.samplen);
xmss.loopstart = bswapLE32(xmss.loopstart);
xmss.looplen = bswapLE32(xmss.looplen);
dwMemPos += xmsh.shsize;
flags[ins] = (xmss.type & 0x10) ? RS_PCM16D : RS_PCM8D;
if (xmss.type & 0x20) flags[ins] = (xmss.type & 0x10) ? RS_STPCM16D : RS_STPCM8D;
samplesize[ins] = xmss.samplen;
if (!samplemap[ins]) continue;
if (xmss.type & 0x10)
{
xmss.looplen >>= 1;
xmss.loopstart >>= 1;
xmss.samplen >>= 1;
}
if (xmss.type & 0x20)
{
xmss.looplen >>= 1;
xmss.loopstart >>= 1;
xmss.samplen >>= 1;
}
if (xmss.samplen > MAX_SAMPLE_LENGTH) xmss.samplen = MAX_SAMPLE_LENGTH;
if (xmss.loopstart >= xmss.samplen) xmss.type &= ~3;
xmss.looplen += xmss.loopstart;
if (xmss.looplen > xmss.samplen) xmss.looplen = xmss.samplen;
if (!xmss.looplen) xmss.type &= ~3;
UINT imapsmp = samplemap[ins];
memcpy(m_szNames[imapsmp], xmss.name, 22);
m_szNames[imapsmp][22] = 0;
MODINSTRUMENT *pins = &Ins[imapsmp];
pins->nLength = (xmss.samplen > MAX_SAMPLE_LENGTH) ? MAX_SAMPLE_LENGTH : xmss.samplen;
pins->nLoopStart = xmss.loopstart;
pins->nLoopEnd = xmss.looplen;
if (pins->nLoopEnd > pins->nLength) pins->nLoopEnd = pins->nLength;
if (pins->nLoopStart >= pins->nLoopEnd)
{
pins->nLoopStart = pins->nLoopEnd = 0;
}
if (xmss.type & 3) pins->uFlags |= CHN_LOOP;
if (xmss.type & 2) pins->uFlags |= CHN_PINGPONGLOOP;
pins->nVolume = xmss.vol << 2;
if (pins->nVolume > 256) pins->nVolume = 256;
pins->nGlobalVol = 64;
if ((xmss.res == 0xAD) && (!(xmss.type & 0x30)))
{
flags[ins] = RS_ADPCM4;
samplesize[ins] = (samplesize[ins]+1)/2 + 16;
}
pins->nFineTune = xmss.finetune;
pins->RelativeTone = (int)xmss.relnote;
pins->nPan = xmss.pan;
pins->uFlags |= CHN_PANNING;
pins->nVibType = xmsh.vibtype;
pins->nVibSweep = xmsh.vibsweep;
pins->nVibDepth = xmsh.vibdepth;
pins->nVibRate = xmsh.vibrate;
memcpy(pins->name, xmss.name, 22);
pins->name[21] = 0;
}
BOOL CSoundFile::ReadDSM(LPCBYTE lpStream, DWORD dwMemLength)
//-----------------------------------------------------------
{
DSMFILEHEADER *pfh = (DSMFILEHEADER *)lpStream;
DSMSONG *psong;
DWORD dwMemPos;
UINT nPat, nSmp;
if ((!lpStream) || (dwMemLength < 1024) || (pfh->id_RIFF != DSMID_RIFF)
|| (pfh->riff_len + 8 > dwMemLength) || (pfh->riff_len < 1024)
|| (pfh->id_DSMF != DSMID_DSMF) || (pfh->id_SONG != DSMID_SONG)
|| (pfh->song_len > dwMemLength)) return FALSE;
psong = (DSMSONG *)(lpStream + sizeof(DSMFILEHEADER));
dwMemPos = sizeof(DSMFILEHEADER) + pfh->song_len;
m_nType = MOD_TYPE_DSM;
m_nChannels = psong->numtrk;
if (m_nChannels < 4) m_nChannels = 4;
if (m_nChannels > 16) m_nChannels = 16;
m_nSamples = psong->numsmp;
if (m_nSamples >= MAX_SAMPLES) m_nSamples = MAX_SAMPLES - 1;
m_nDefaultSpeed = psong->speed;
m_nDefaultTempo = psong->bpm;
m_nDefaultGlobalVolume = psong->globalvol << 2;
if ((!m_nDefaultGlobalVolume) || (m_nDefaultGlobalVolume > 256)) m_nDefaultGlobalVolume = 256;
m_nSongPreAmp = psong->mastervol & 0x7F;
for (UINT iOrd=0; iOrd<MAX_ORDERS; iOrd++)
{
Order[iOrd] = (BYTE)((iOrd < psong->numord) ? psong->orders[iOrd] : 0xFF);
}
for (UINT iPan=0; iPan<16; iPan++)
{
ChnSettings[iPan].nPan = 0x80;
if (psong->panpos[iPan] <= 0x80)
{
ChnSettings[iPan].nPan = psong->panpos[iPan] << 1;
}
}
memcpy(m_szNames[0], psong->songname, 28);
nPat = 0;
nSmp = 1;
while (dwMemPos < dwMemLength - 8)
{
DSMPATT *ppatt = (DSMPATT *)(lpStream + dwMemPos);
DSMINST *pins = (DSMINST *)(lpStream+dwMemPos);
// Reading Patterns
if (ppatt->id_PATT == DSMID_PATT)
{
dwMemPos += 8;
if (dwMemPos + ppatt->patt_len >= dwMemLength) break;
DWORD dwPos = dwMemPos;
dwMemPos += ppatt->patt_len;
MODCOMMAND *m = AllocatePattern(64, m_nChannels);
if (!m) break;
PatternSize[nPat] = 64;
Patterns[nPat] = m;
UINT row = 0;
while ((row < 64) && (dwPos + 2 <= dwMemPos))
{
UINT flag = lpStream[dwPos++];
if (flag)
{
UINT ch = (flag & 0x0F) % m_nChannels;
if (flag & 0x80)
{
UINT note = lpStream[dwPos++];
if (note)
{
if (note <= 12*9) note += 12;
m[ch].note = (BYTE)note;
}
}
if (flag & 0x40)
{
m[ch].instr = lpStream[dwPos++];
}
if (flag & 0x20)
{
m[ch].volcmd = VOLCMD_VOLUME;
m[ch].vol = lpStream[dwPos++];
}
if (flag & 0x10)
{
UINT command = lpStream[dwPos++];
UINT param = lpStream[dwPos++];
switch(command)
{
// 4-bit Panning
case 0x08:
switch(param & 0xF0)
{
case 0x00: param <<= 4; break;
case 0x10: command = 0x0A; param = (param & 0x0F) << 4; break;
case 0x20: command = 0x0E; param = (param & 0x0F) | 0xA0; break;
case 0x30: command = 0x0E; param = (param & 0x0F) | 0x10; break;
case 0x40: command = 0x0E; param = (param & 0x0F) | 0x20; break;
default: command = 0;
}
break;
// Portamentos
case 0x11:
case 0x12:
command &= 0x0F;
break;
// 3D Sound (?)
case 0x13:
command = 'X' - 55;
param = 0x91;
break;
default:
// Volume + Offset (?)
command = ((command & 0xF0) == 0x20) ? 0x09 : 0;
}
m[ch].command = (BYTE)command;
m[ch].param = (BYTE)param;
if (command) ConvertModCommand(&m[ch]);
}
} else
{
m += m_nChannels;
row++;
}
}
nPat++;
} else
// Reading Samples
if ((nSmp <= m_nSamples) && (pins->id_INST == DSMID_INST))
{
if (dwMemPos + pins->inst_len >= dwMemLength - 8) break;
DWORD dwPos = dwMemPos + sizeof(DSMINST);
dwMemPos += 8 + pins->inst_len;
memcpy(m_szNames[nSmp], pins->samplename, 28);
MODINSTRUMENT *psmp = &Ins[nSmp];
memcpy(psmp->name, pins->filename, 13);
psmp->nGlobalVol = 64;
psmp->nC4Speed = pins->c2spd;
psmp->uFlags = (WORD)((pins->flags & 1) ? CHN_LOOP : 0);
psmp->nLength = pins->length;
psmp->nLoopStart = pins->loopstart;
psmp->nLoopEnd = pins->loopend;
psmp->nVolume = (WORD)(pins->volume << 2);
if (psmp->nVolume > 256) psmp->nVolume = 256;
UINT smptype = (pins->flags & 2) ? RS_PCM8S : RS_PCM8U;
ReadSample(psmp, smptype, (LPCSTR)(lpStream+dwPos), dwMemLength - dwPos);
nSmp++;
} else
{
break;
}
}
return TRUE;
}
BOOL CSoundFile::ReadWav(const BYTE *lpStream, DWORD dwMemLength)
//---------------------------------------------------------------
{
DWORD dwMemPos = 0;
WAVEFILEHEADER *phdr = (WAVEFILEHEADER *)lpStream;
WAVEFORMATHEADER *pfmt = (WAVEFORMATHEADER *)(lpStream + sizeof(WAVEFILEHEADER));
if ((!lpStream) || (dwMemLength < (DWORD)sizeof(WAVEFILEHEADER))) return FALSE;
if ((phdr->id_RIFF != IFFID_RIFF) || (phdr->id_WAVE != IFFID_WAVE)
|| (pfmt->id_fmt != IFFID_fmt)) return FALSE;
dwMemPos = sizeof(WAVEFILEHEADER) + 8 + pfmt->hdrlen;
if ((dwMemPos + 8 >= dwMemLength)
|| ((pfmt->format != WAVE_FORMAT_PCM) && (pfmt->format != WAVE_FORMAT_EXTENSIBLE))
|| (pfmt->channels > 4)
|| (!pfmt->channels)
|| (!pfmt->freqHz)
|| (pfmt->bitspersample & 7)
|| (pfmt->bitspersample < 8)
|| (pfmt->bitspersample > 32)) return FALSE;
WAVEDATAHEADER *pdata;
for (;;)
{
pdata = (WAVEDATAHEADER *)(lpStream + dwMemPos);
if (pdata->id_data == IFFID_data) break;
dwMemPos += pdata->length + 8;
if (dwMemPos + 8 >= dwMemLength) return FALSE;
}
m_nType = MOD_TYPE_WAV;
m_nSamples = 0;
m_nInstruments = 0;
m_nChannels = 4;
m_nDefaultSpeed = 8;
m_nDefaultTempo = 125;
m_dwSongFlags |= SONG_LINEARSLIDES; // For no resampling
Order[0] = 0;
Order[1] = 0xFF;
PatternSize[0] = PatternSize[1] = 64;
if ((Patterns[0] = AllocatePattern(64, 4)) == NULL) return TRUE;
if ((Patterns[1] = AllocatePattern(64, 4)) == NULL) return TRUE;
UINT samplesize = (pfmt->channels * pfmt->bitspersample) >> 3;
UINT len = pdata->length, bytelen;
if (dwMemPos + len > dwMemLength - 8) len = dwMemLength - dwMemPos - 8;
len /= samplesize;
bytelen = len;
if (pfmt->bitspersample >= 16) bytelen *= 2;
if (len > MAX_SAMPLE_LENGTH) len = MAX_SAMPLE_LENGTH;
if (!len) return TRUE;
// Setting up module length
DWORD dwTime = ((len * 50) / pfmt->freqHz) + 1;
DWORD framesperrow = (dwTime + 63) / 63;
if (framesperrow < 4) framesperrow = 4;
UINT norders = 1;
while (framesperrow >= 0x20)
{
Order[norders++] = 1;
Order[norders] = 0xFF;
framesperrow = (dwTime + (64 * norders - 1)) / (64 * norders);
if (norders >= MAX_ORDERS-1) break;
}
m_nDefaultSpeed = framesperrow;
for (UINT iChn=0; iChn<4; iChn++)
{
ChnSettings[iChn].nPan = (iChn & 1) ? 256 : 0;
ChnSettings[iChn].nVolume = 64;
ChnSettings[iChn].dwFlags = 0;
}
// Setting up speed command
MODCOMMAND *pcmd = Patterns[0];
pcmd[0].command = CMD_SPEED;
pcmd[0].param = (BYTE)m_nDefaultSpeed;
pcmd[0].note = 5*12+1;
pcmd[0].instr = 1;
pcmd[1].note = pcmd[0].note;
pcmd[1].instr = pcmd[0].instr;
m_nSamples = pfmt->channels;
// Support for Multichannel Wave
for (UINT nChn=0; nChn<m_nSamples; nChn++)
{
MODINSTRUMENT *pins = &Ins[nChn+1];
pcmd[nChn].note = pcmd[0].note;
pcmd[nChn].instr = (BYTE)(nChn+1);
pins->nLength = len;
pins->nC4Speed = pfmt->freqHz;
pins->nVolume = 256;
pins->nPan = 128;
pins->nGlobalVol = 64;
pins->uFlags = (WORD)((pfmt->bitspersample >= 16) ? CHN_16BIT : 0);
pins->uFlags |= CHN_PANNING;
if (m_nSamples > 1)
{
switch(nChn)
{
case 0: pins->nPan = 0; break;
case 1: pins->nPan = 256; break;
case 2: pins->nPan = (WORD)((m_nSamples == 3) ? 128 : 64); pcmd[nChn].command = CMD_S3MCMDEX; pcmd[nChn].param = 0x91; break;
case 3: pins->nPan = 192; pcmd[nChn].command = CMD_S3MCMDEX; pcmd[nChn].param = 0x91; break;
default: pins->nPan = 128; break;
}
}
if ((pins->pSample = AllocateSample(bytelen+8)) == NULL) return TRUE;
if (pfmt->bitspersample >= 16)
{
int slsize = pfmt->bitspersample >> 3;
signed short *p = (signed short *)pins->pSample;
signed char *psrc = (signed char *)(lpStream+dwMemPos+8+nChn*slsize+slsize-2);
for (UINT i=0; i<len; i++)
{
p[i] = *((signed short *)psrc);
psrc += samplesize;
}
p[len+1] = p[len] = p[len-1];
} else
{
