diff options
Diffstat (limited to 'gst/modplug/libmodplug/load_amf.cpp')
| -rw-r--r-- | gst/modplug/libmodplug/load_amf.cpp | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/gst/modplug/libmodplug/load_amf.cpp b/gst/modplug/libmodplug/load_amf.cpp deleted file mode 100644 index 37a34185..00000000 --- a/gst/modplug/libmodplug/load_amf.cpp +++ /dev/null @@ -1,422 +0,0 @@ -/* - * This source code is public domain. - * - * Authors: Olivier Lapicque <olivierl@jps.net> - */ - -/////////////////////////////////////////////////// -// -// AMF module loader -// -// There is 2 types of AMF files: -// - ASYLUM Music Format -// - Advanced Music Format(DSM) -// -/////////////////////////////////////////////////// - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "stdafx.h" -#include "sndfile.h" - -//#define AMFLOG - -//#pragma warning(disable:4244) - -#pragma pack(1) - -typedef struct _AMFFILEHEADER -{ - UCHAR szAMF[3]; - UCHAR version; - CHAR title[32]; - UCHAR numsamples; - UCHAR numorders; - USHORT numtracks; - UCHAR numchannels; -} AMFFILEHEADER; - -typedef struct _AMFSAMPLE -{ - UCHAR type; - CHAR samplename[32]; - CHAR filename[13]; - ULONG offset; - ULONG length; - USHORT c2spd; - UCHAR volume; -} AMFSAMPLE; - - -#pragma pack() - - -#ifdef AMFLOG -extern void Log(LPCSTR, ...); -#endif - -VOID AMF_Unpack(MODCOMMAND *pPat, const BYTE *pTrack, UINT nRows, UINT nChannels) -//------------------------------------------------------------------------------- -{ - UINT lastinstr = 0; - UINT nTrkSize = *(USHORT *)pTrack; - nTrkSize += (UINT)pTrack[2] << 16; - pTrack += 3; - while (nTrkSize--) - { - UINT row = pTrack[0]; - UINT cmd = pTrack[1]; - UINT arg = pTrack[2]; - if (row >= nRows) break; - MODCOMMAND *m = pPat + row * nChannels; - if (cmd < 0x7F) // note+vol - { - m->note = cmd+1; - if (!m->instr) m->instr = lastinstr; - m->volcmd = VOLCMD_VOLUME; - m->vol = arg; - } else - if (cmd == 0x7F) // duplicate row - { - signed char rdelta = (signed char)arg; - int rowsrc = (int)row + (int)rdelta; - if ((rowsrc >= 0) && (rowsrc < (int)nRows)) *m = pPat[rowsrc*nChannels]; - } else - if (cmd == 0x80) // instrument - { - m->instr = arg+1; - lastinstr = m->instr; - } else - if (cmd == 0x83) // volume - { - m->volcmd = VOLCMD_VOLUME; - m->vol = arg; - } else - // effect - { - UINT command = cmd & 0x7F; - UINT param = arg; - switch(command) - { - // 0x01: Set Speed - case 0x01: command = CMD_SPEED; break; - // 0x02: Volume Slide - // 0x0A: Tone Porta + Vol Slide - // 0x0B: Vibrato + Vol Slide - case 0x02: command = CMD_VOLUMESLIDE; - case 0x0A: if (command == 0x0A) command = CMD_TONEPORTAVOL; - case 0x0B: if (command == 0x0B) command = CMD_VIBRATOVOL; - if (param & 0x80) param = (-(signed char)param)&0x0F; - else param = (param&0x0F)<<4; - break; - // 0x04: Porta Up/Down - case 0x04: if (param & 0x80) { command = CMD_PORTAMENTOUP; param = -(signed char)param; } - else { command = CMD_PORTAMENTODOWN; } break; - // 0x06: Tone Portamento - case 0x06: command = CMD_TONEPORTAMENTO; break; - // 0x07: Tremor - case 0x07: command = CMD_TREMOR; break; - // 0x08: Arpeggio - case 0x08: command = CMD_ARPEGGIO; break; - // 0x09: Vibrato - case 0x09: command = CMD_VIBRATO; break; - // 0x0C: Pattern Break - case 0x0C: command = CMD_PATTERNBREAK; break; - // 0x0D: Position Jump - case 0x0D: command = CMD_POSITIONJUMP; break; - // 0x0F: Retrig - case 0x0F: command = CMD_RETRIG; break; - // 0x10: Offset - case 0x10: command = CMD_OFFSET; break; - // 0x11: Fine Volume Slide - case 0x11: if (param) { command = CMD_VOLUMESLIDE; - if (param & 0x80) param = 0xF0|((-(signed char)param)&0x0F); - else param = 0x0F|((param&0x0F)<<4); - } else command = 0; break; - // 0x12: Fine Portamento - // 0x16: Extra Fine Portamento - case 0x12: - case 0x16: if (param) { int mask = (command == 0x16) ? 0xE0 : 0xF0; - command = (param & 0x80) ? CMD_PORTAMENTOUP : CMD_PORTAMENTODOWN; - if (param & 0x80) param = mask|((-(signed char)param)&0x0F); - else param |= mask; - } else command = 0; break; - // 0x13: Note Delay - case 0x13: command = CMD_S3MCMDEX; param = 0xD0|(param & 0x0F); break; - // 0x14: Note Cut - case 0x14: command = CMD_S3MCMDEX; param = 0xC0|(param & 0x0F); break; - // 0x15: Set Tempo - case 0x15: command = CMD_TEMPO; break; - // 0x17: Panning - case 0x17: param = (param+64)&0x7F; - if (m->command) { if (!m->volcmd) { m->volcmd = VOLCMD_PANNING; m->vol = param/2; } command = 0; } - else { command = CMD_PANNING8; } - // Unknown effects - default: command = param = 0; - } - if (command) - { - m->command = command; - m->param = param; - } - } - pTrack += 3; - } -} - - - -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; -} - - |