diff options
Diffstat (limited to 'gst/modplug/libmodplug/load_mod.cpp')
| -rw-r--r-- | gst/modplug/libmodplug/load_mod.cpp | 498 |
1 files changed, 498 insertions, 0 deletions
diff --git a/gst/modplug/libmodplug/load_mod.cpp b/gst/modplug/libmodplug/load_mod.cpp new file mode 100644 index 000000000..3e48739d1 --- /dev/null +++ b/gst/modplug/libmodplug/load_mod.cpp @@ -0,0 +1,498 @@ +/* + * This source code is public domain. + * + * Authors: Olivier Lapicque <olivierl@jps.net>, + * Adam Goode <adam@evdebs.org> (endian and char fixes for PPC) +*/ + +#include "stdafx.h" +#include "sndfile.h" + +//#pragma warning(disable:4244) + +extern WORD ProTrackerPeriodTable[6*12]; + +////////////////////////////////////////////////////////// +// ProTracker / NoiseTracker MOD/NST file support + +void CSoundFile::ConvertModCommand(MODCOMMAND *m) const +//----------------------------------------------------- +{ + UINT command = m->command, param = m->param; + + switch(command) + { + case 0x00: if (param) command = CMD_ARPEGGIO; break; + case 0x01: command = CMD_PORTAMENTOUP; break; + case 0x02: command = CMD_PORTAMENTODOWN; break; + case 0x03: command = CMD_TONEPORTAMENTO; break; + case 0x04: command = CMD_VIBRATO; break; + case 0x05: command = CMD_TONEPORTAVOL; if (param & 0xF0) param &= 0xF0; break; + case 0x06: command = CMD_VIBRATOVOL; if (param & 0xF0) param &= 0xF0; break; + case 0x07: command = CMD_TREMOLO; break; + case 0x08: command = CMD_PANNING8; break; + case 0x09: command = CMD_OFFSET; break; + case 0x0A: command = CMD_VOLUMESLIDE; if (param & 0xF0) param &= 0xF0; break; + case 0x0B: command = CMD_POSITIONJUMP; break; + case 0x0C: command = CMD_VOLUME; break; + case 0x0D: command = CMD_PATTERNBREAK; param = ((param >> 4) * 10) + (param & 0x0F); break; + case 0x0E: command = CMD_MODCMDEX; break; + case 0x0F: command = (param <= (UINT)((m_nType & (MOD_TYPE_XM|MOD_TYPE_MT2)) ? 0x1F : 0x20)) ? CMD_SPEED : CMD_TEMPO; + if ((param == 0xFF) && (m_nSamples == 15)) command = 0; break; + // Extension for XM extended effects + case 'G' - 55: command = CMD_GLOBALVOLUME; break; + case 'H' - 55: command = CMD_GLOBALVOLSLIDE; if (param & 0xF0) param &= 0xF0; break; + case 'K' - 55: command = CMD_KEYOFF; break; + case 'L' - 55: command = CMD_SETENVPOSITION; break; + case 'M' - 55: command = CMD_CHANNELVOLUME; break; + case 'N' - 55: command = CMD_CHANNELVOLSLIDE; break; + case 'P' - 55: command = CMD_PANNINGSLIDE; if (param & 0xF0) param &= 0xF0; break; + case 'R' - 55: command = CMD_RETRIG; break; + case 'T' - 55: command = CMD_TREMOR; break; + case 'X' - 55: command = CMD_XFINEPORTAUPDOWN; break; + case 'Y' - 55: command = CMD_PANBRELLO; break; + case 'Z' - 55: command = CMD_MIDI; break; + default: command = 0; + } + m->command = command; + m->param = param; +} + + +WORD CSoundFile::ModSaveCommand(const MODCOMMAND *m, BOOL bXM) const +//------------------------------------------------------------------ +{ + UINT command = m->command & 0x3F, param = m->param; + + switch(command) + { + case 0: command = param = 0; break; + case CMD_ARPEGGIO: command = 0; break; + case CMD_PORTAMENTOUP: + if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM)) + { + if ((param & 0xF0) == 0xE0) { command=0x0E; param=((param & 0x0F) >> 2)|0x10; break; } + else if ((param & 0xF0) == 0xF0) { command=0x0E; param &= 0x0F; param|=0x10; break; } + } + command = 0x01; + break; + case CMD_PORTAMENTODOWN: + if (m_nType & (MOD_TYPE_S3M|MOD_TYPE_IT|MOD_TYPE_STM)) + { + if ((param & 0xF0) == 0xE0) { command=0x0E; param=((param & 0x0F) >> 2)|0x20; break; } + else if ((param & 0xF0) == 0xF0) { command=0x0E; param &= 0x0F; param|=0x20; break; } + } + command = 0x02; + break; + case CMD_TONEPORTAMENTO: command = 0x03; break; + case CMD_VIBRATO: command = 0x04; break; + case CMD_TONEPORTAVOL: command = 0x05; break; + case CMD_VIBRATOVOL: command = 0x06; break; + case CMD_TREMOLO: command = 0x07; break; + case CMD_PANNING8: + command = 0x08; + if (bXM) + { + if ((m_nType != MOD_TYPE_IT) && (m_nType != MOD_TYPE_XM) && (param <= 0x80)) + { + param <<= 1; + if (param > 255) param = 255; + } + } else + { + if ((m_nType == MOD_TYPE_IT) || (m_nType == MOD_TYPE_XM)) param >>= 1; + } + break; + case CMD_OFFSET: command = 0x09; break; + case CMD_VOLUMESLIDE: command = 0x0A; break; + case CMD_POSITIONJUMP: command = 0x0B; break; + case CMD_VOLUME: command = 0x0C; break; + case CMD_PATTERNBREAK: command = 0x0D; param = ((param / 10) << 4) | (param % 10); break; + case CMD_MODCMDEX: command = 0x0E; break; + case CMD_SPEED: command = 0x0F; if (param > 0x20) param = 0x20; break; + case CMD_TEMPO: if (param > 0x20) { command = 0x0F; break; } + case CMD_GLOBALVOLUME: command = 'G' - 55; break; + case CMD_GLOBALVOLSLIDE: command = 'H' - 55; break; + case CMD_KEYOFF: command = 'K' - 55; break; + case CMD_SETENVPOSITION: command = 'L' - 55; break; + case CMD_CHANNELVOLUME: command = 'M' - 55; break; + case CMD_CHANNELVOLSLIDE: command = 'N' - 55; break; + case CMD_PANNINGSLIDE: command = 'P' - 55; break; + case CMD_RETRIG: command = 'R' - 55; break; + case CMD_TREMOR: command = 'T' - 55; break; + case CMD_XFINEPORTAUPDOWN: command = 'X' - 55; break; + case CMD_PANBRELLO: command = 'Y' - 55; break; + case CMD_MIDI: command = 'Z' - 55; break; + case CMD_S3MCMDEX: + switch(param & 0xF0) + { + case 0x10: command = 0x0E; param = (param & 0x0F) | 0x30; break; + case 0x20: command = 0x0E; param = (param & 0x0F) | 0x50; break; + case 0x30: command = 0x0E; param = (param & 0x0F) | 0x40; break; + case 0x40: command = 0x0E; param = (param & 0x0F) | 0x70; break; + case 0x90: command = 'X' - 55; break; + case 0xB0: command = 0x0E; param = (param & 0x0F) | 0x60; break; + case 0xA0: + case 0x50: + case 0x70: + case 0x60: command = param = 0; break; + default: command = 0x0E; break; + } + break; + default: command = param = 0; + } + return (WORD)((command << 8) | (param)); +} + + +#pragma pack(1) + +typedef struct _MODSAMPLE +{ + CHAR name[22]; + WORD length; + BYTE finetune; + BYTE volume; + WORD loopstart; + WORD looplen; +} MODSAMPLE, *PMODSAMPLE; + +typedef struct _MODMAGIC +{ + BYTE nOrders; + BYTE nRestartPos; + BYTE Orders[128]; + char Magic[4]; // changed from CHAR +} MODMAGIC, *PMODMAGIC; + +#pragma pack() + +BOOL IsMagic(LPCSTR s1, LPCSTR s2) +{ + return ((*(DWORD *)s1) == (*(DWORD *)s2)) ? TRUE : FALSE; +} + + +BOOL CSoundFile::ReadMod(const BYTE *lpStream, DWORD dwMemLength) +//--------------------------------------------------------------- +{ + char s[1024]; // changed from CHAR + DWORD dwMemPos, dwTotalSampleLen; + PMODMAGIC pMagic; + UINT nErr; + + if ((!lpStream) || (dwMemLength < 0x600)) return FALSE; + dwMemPos = 20; + m_nSamples = 31; + m_nChannels = 4; + pMagic = (PMODMAGIC)(lpStream+dwMemPos+sizeof(MODSAMPLE)*31); + // Check Mod Magic + memcpy(s, pMagic->Magic, 4); + if ((IsMagic(s, "M.K.")) || (IsMagic(s, "M!K!")) + || (IsMagic(s, "M&K!")) || (IsMagic(s, "N.T."))) m_nChannels = 4; else + if ((IsMagic(s, "CD81")) || (IsMagic(s, "OKTA"))) m_nChannels = 8; else + if ((s[0]=='F') && (s[1]=='L') && (s[2]=='T') && (s[3]>='4') && (s[3]<='9')) m_nChannels = s[3] - '0'; else + if ((s[0]>='4') && (s[0]<='9') && (s[1]=='C') && (s[2]=='H') && (s[3]=='N')) m_nChannels = s[0] - '0'; else + if ((s[0]=='1') && (s[1]>='0') && (s[1]<='9') && (s[2]=='C') && (s[3]=='H')) m_nChannels = s[1] - '0' + 10; else + if ((s[0]=='2') && (s[1]>='0') && (s[1]<='9') && (s[2]=='C') && (s[3]=='H')) m_nChannels = s[1] - '0' + 20; else + if ((s[0]=='3') && (s[1]>='0') && (s[1]<='2') && (s[2]=='C') && (s[3]=='H')) m_nChannels = s[1] - '0' + 30; else + if ((s[0]=='T') && (s[1]=='D') && (s[2]=='Z') && (s[3]>='4') && (s[3]<='9')) m_nChannels = s[3] - '0'; else + if (IsMagic(s,"16CN")) m_nChannels = 16; else + if (IsMagic(s,"32CN")) m_nChannels = 32; else m_nSamples = 15; + // Load Samples + nErr = 0; + dwTotalSampleLen = 0; + for (UINT i=1; i<=m_nSamples; i++) + { + PMODSAMPLE pms = (PMODSAMPLE)(lpStream+dwMemPos); + MODINSTRUMENT *psmp = &Ins[i]; + UINT loopstart, looplen; + + memcpy(m_szNames[i], pms->name, 22); + m_szNames[i][22] = 0; + psmp->uFlags = 0; + psmp->nLength = bswapBE16(pms->length)*2; + dwTotalSampleLen += psmp->nLength; + psmp->nFineTune = MOD2XMFineTune(pms->finetune & 0x0F); + psmp->nVolume = 4*pms->volume; + if (psmp->nVolume > 256) { psmp->nVolume = 256; nErr++; } + psmp->nGlobalVol = 64; + psmp->nPan = 128; + loopstart = bswapBE16(pms->loopstart)*2; + looplen = bswapBE16(pms->looplen)*2; + // Fix loops + if ((looplen > 2) && (loopstart+looplen > psmp->nLength) + && (loopstart/2+looplen <= psmp->nLength)) + { + loopstart /= 2; + } + psmp->nLoopStart = loopstart; + psmp->nLoopEnd = loopstart + looplen; + if (psmp->nLength < 4) psmp->nLength = 0; + if (psmp->nLength) + { + UINT derr = 0; + if (psmp->nLoopStart >= psmp->nLength) { psmp->nLoopStart = psmp->nLength-1; derr|=1; } + if (psmp->nLoopEnd > psmp->nLength) { psmp->nLoopEnd = psmp->nLength; derr |= 1; } + if (psmp->nLoopStart > psmp->nLoopEnd) derr |= 1; + if ((psmp->nLoopStart > psmp->nLoopEnd) || (psmp->nLoopEnd <= 8) + || (psmp->nLoopEnd - psmp->nLoopStart <= 4)) + { + psmp->nLoopStart = 0; + psmp->nLoopEnd = 0; + } + if (psmp->nLoopEnd > psmp->nLoopStart) + { + psmp->uFlags |= CHN_LOOP; + } + } + dwMemPos += sizeof(MODSAMPLE); + } + if ((m_nSamples == 15) && (dwTotalSampleLen > dwMemLength * 4)) return FALSE; + pMagic = (PMODMAGIC)(lpStream+dwMemPos); + dwMemPos += sizeof(MODMAGIC); + if (m_nSamples == 15) dwMemPos -= 4; + memset(Order, 0,sizeof(Order)); + memcpy(Order, pMagic->Orders, 128); + + UINT nbp, nbpbuggy, nbpbuggy2, norders; + + norders = pMagic->nOrders; + if ((!norders) || (norders > 0x80)) + { + norders = 0x80; + while ((norders > 1) && (!Order[norders-1])) norders--; + } + nbpbuggy = 0; + nbpbuggy2 = 0; + nbp = 0; + for (UINT iord=0; iord<128; iord++) + { + UINT i = Order[iord]; + if ((i < 0x80) && (nbp <= i)) + { + nbp = i+1; + if (iord<norders) nbpbuggy = nbp; + } + if (i >= nbpbuggy2) nbpbuggy2 = i+1; + } + for (UINT iend=norders; iend<MAX_ORDERS; iend++) Order[iend] = 0xFF; + norders--; + m_nRestartPos = pMagic->nRestartPos; + if (m_nRestartPos >= 0x78) m_nRestartPos = 0; + if (m_nRestartPos + 1 >= (UINT)norders) m_nRestartPos = 0; + if (!nbp) return FALSE; + DWORD dwWowTest = dwTotalSampleLen+dwMemPos; + if ((IsMagic(pMagic->Magic, "M.K.")) && (dwWowTest + nbp*8*256 == dwMemLength)) m_nChannels = 8; + if ((nbp != nbpbuggy) && (dwWowTest + nbp*m_nChannels*256 != dwMemLength)) + { + if (dwWowTest + nbpbuggy*m_nChannels*256 == dwMemLength) nbp = nbpbuggy; + else nErr += 8; + } else + if ((nbpbuggy2 > nbp) && (dwWowTest + nbpbuggy2*m_nChannels*256 == dwMemLength)) + { + nbp = nbpbuggy2; + } + if ((dwWowTest < 0x600) || (dwWowTest > dwMemLength)) nErr += 8; + if ((m_nSamples == 15) && (nErr >= 16)) return FALSE; + // Default settings + m_nType = MOD_TYPE_MOD; + m_nDefaultSpeed = 6; + m_nDefaultTempo = 125; + m_nMinPeriod = 14 << 2; + m_nMaxPeriod = 3424 << 2; + memcpy(m_szNames, lpStream, 20); + // Setting channels pan + for (UINT ich=0; ich<m_nChannels; ich++) + { + ChnSettings[ich].nVolume = 64; + if (gdwSoundSetup & SNDMIX_MAXDEFAULTPAN) + ChnSettings[ich].nPan = (((ich&3)==1) || ((ich&3)==2)) ? 256 : 0; + else + ChnSettings[ich].nPan = (((ich&3)==1) || ((ich&3)==2)) ? 0xC0 : 0x40; + } + // Reading channels + for (UINT ipat=0; ipat<nbp; ipat++) + { + if (ipat < MAX_PATTERNS) + { + if ((Patterns[ipat] = AllocatePattern(64, m_nChannels)) == NULL) break; + PatternSize[ipat] = 64; + if (dwMemPos + m_nChannels*256 >= dwMemLength) break; + MODCOMMAND *m = Patterns[ipat]; + LPCBYTE p = lpStream + dwMemPos; + for (UINT j=m_nChannels*64; j; m++,p+=4,j--) + { + BYTE A0=p[0], A1=p[1], A2=p[2], A3=p[3]; + UINT n = ((((UINT)A0 & 0x0F) << 8) | (A1)); + if ((n) && (n != 0xFFF)) m->note = GetNoteFromPeriod(n << 2); + m->instr = ((UINT)A2 >> 4) | (A0 & 0x10); + m->command = A2 & 0x0F; + m->param = A3; + if ((m->command) || (m->param)) ConvertModCommand(m); + } + } + dwMemPos += m_nChannels*256; + } + // Reading instruments + DWORD dwErrCheck = 0; + for (UINT ismp=1; ismp<=m_nSamples; ismp++) if (Ins[ismp].nLength) + { + LPSTR p = (LPSTR)(lpStream+dwMemPos); + UINT flags = 0; + if (dwMemPos + 5 >= dwMemLength) break; + if (!strnicmp(p, "ADPCM", 5)) + { + flags = 3; + p += 5; + dwMemPos += 5; + } + DWORD dwSize = ReadSample(&Ins[ismp], flags, p, dwMemLength - dwMemPos); + if (dwSize) + { + dwMemPos += dwSize; + dwErrCheck++; + } + } +#ifdef MODPLUG_TRACKER + return TRUE; +#else + return (dwErrCheck) ? TRUE : FALSE; +#endif +} + + +#ifndef MODPLUG_NO_FILESAVE +#pragma warning(disable:4100) + +BOOL CSoundFile::SaveMod(LPCSTR lpszFileName, UINT nPacking) +//---------------------------------------------------------- +{ + BYTE insmap[32]; + UINT inslen[32]; + BYTE bTab[32]; + BYTE ord[128]; + FILE *f; + + if ((!m_nChannels) || (!lpszFileName)) return FALSE; + if ((f = fopen(lpszFileName, "wb")) == NULL) return FALSE; + memset(ord, 0, sizeof(ord)); + memset(inslen, 0, sizeof(inslen)); + if (m_nInstruments) + { + memset(insmap, 0, sizeof(insmap)); + for (UINT i=1; i<32; i++) if (Headers[i]) + { + for (UINT j=0; j<128; j++) if (Headers[i]->Keyboard[j]) + { + insmap[i] = Headers[i]->Keyboard[j]; + break; + } + } + } else + { + for (UINT i=0; i<32; i++) insmap[i] = (BYTE)i; + } + // Writing song name + fwrite(m_szNames, 20, 1, f); + // Writing instrument definition + for (UINT iins=1; iins<=31; iins++) + { + MODINSTRUMENT *pins = &Ins[insmap[iins]]; + memcpy(bTab, m_szNames[iins],22); + inslen[iins] = pins->nLength; + if (inslen[iins] > 0x1fff0) inslen[iins] = 0x1fff0; + bTab[22] = inslen[iins] >> 9; + bTab[23] = inslen[iins] >> 1; + if (pins->RelativeTone < 0) bTab[24] = 0x08; else + if (pins->RelativeTone > 0) bTab[24] = 0x07; else + bTab[24] = (BYTE)XM2MODFineTune(pins->nFineTune); + bTab[25] = pins->nVolume >> 2; + bTab[26] = pins->nLoopStart >> 9; + bTab[27] = pins->nLoopStart >> 1; + bTab[28] = (pins->nLoopEnd - pins->nLoopStart) >> 9; + bTab[29] = (pins->nLoopEnd - pins->nLoopStart) >> 1; + fwrite(bTab, 30, 1, f); + } + // Writing number of patterns + UINT nbp=0, norders=128; + for (UINT iord=0; iord<128; iord++) + { + if (Order[iord] == 0xFF) + { + norders = iord; + break; + } + if ((Order[iord] < 0x80) && (nbp<=Order[iord])) nbp = Order[iord]+1; + } + bTab[0] = norders; + bTab[1] = m_nRestartPos; + fwrite(bTab, 2, 1, f); + // Writing pattern list + if (norders) memcpy(ord, Order, norders); + fwrite(ord, 128, 1, f); + // Writing signature + if (m_nChannels == 4) + lstrcpy((LPSTR)&bTab, "M.K."); + else + wsprintf((LPSTR)&bTab, "%luCHN", m_nChannels); + fwrite(bTab, 4, 1, f); + // Writing patterns + for (UINT ipat=0; ipat<nbp; ipat++) if (Patterns[ipat]) + { + BYTE s[64*4]; + MODCOMMAND *m = Patterns[ipat]; + for (UINT i=0; i<64; i++) if (i < PatternSize[ipat]) + { + LPBYTE p=s; + for (UINT c=0; c<m_nChannels; c++,p+=4,m++) + { + UINT param = ModSaveCommand(m, FALSE); + UINT command = param >> 8; + param &= 0xFF; + if (command > 0x0F) command = param = 0; + if ((m->vol >= 0x10) && (m->vol <= 0x50) && (!command) && (!param)) { command = 0x0C; param = m->vol - 0x10; } + UINT period = m->note; + if (period) + { + if (period < 37) period = 37; + period -= 37; + if (period >= 6*12) period = 6*12-1; + period = ProTrackerPeriodTable[period]; + } + UINT instr = (m->instr > 31) ? 0 : m->instr; + p[0] = ((period >> 8) & 0x0F) | (instr & 0x10); + p[1] = period & 0xFF; + p[2] = ((instr & 0x0F) << 4) | (command & 0x0F); + p[3] = param; + } + fwrite(s, m_nChannels, 4, f); + } else + { + memset(s, 0, m_nChannels*4); + fwrite(s, m_nChannels, 4, f); + } + } + // Writing instruments + for (UINT ismpd=1; ismpd<=31; ismpd++) if (inslen[ismpd]) + { + MODINSTRUMENT *pins = &Ins[insmap[ismpd]]; + UINT flags = RS_PCM8S; +#ifndef NO_PACKING + if (!(pins->uFlags & (CHN_16BIT|CHN_STEREO))) + { + if ((nPacking) && (CanPackSample(pins->pSample, inslen[ismpd], nPacking))) + { + fwrite("ADPCM", 1, 5, f); + flags = RS_ADPCM4; + } + } +#endif + WriteSample(f, pins, flags, inslen[ismpd]); + } + fclose(f); + return TRUE; +} + +#pragma warning(default:4100) +#endif // MODPLUG_NO_FILESAVE |