diff options
Diffstat (limited to 'lib/libmodplug/src/load_mtm.cpp')
| -rw-r--r-- | lib/libmodplug/src/load_mtm.cpp | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/lib/libmodplug/src/load_mtm.cpp b/lib/libmodplug/src/load_mtm.cpp deleted file mode 100644 index f5f0299e23..0000000000 --- a/lib/libmodplug/src/load_mtm.cpp +++ /dev/null @@ -1,168 +0,0 @@ -/* - * This source code is public domain. - * - * Authors: Olivier Lapicque <olivierl@jps.net> -*/ - -#include "stdafx.h" -#include "sndfile.h" - -//#pragma warning(disable:4244) - -////////////////////////////////////////////////////////// -// MTM file support (import only) - -#pragma pack(1) - - -typedef struct tagMTMSAMPLE -{ - char samplename[22]; // changed from CHAR - DWORD length; - DWORD reppos; - DWORD repend; - CHAR finetune; - BYTE volume; - BYTE attribute; -} MTMSAMPLE; - - -typedef struct tagMTMHEADER -{ - char id[4]; // MTM file marker + version // changed from CHAR - char songname[20]; // ASCIIZ songname // changed from CHAR - WORD numtracks; // number of tracks saved - BYTE lastpattern; // last pattern number saved - BYTE lastorder; // last order number to play (songlength-1) - WORD commentsize; // length of comment field - BYTE numsamples; // number of samples saved - BYTE attribute; // attribute byte (unused) - BYTE beatspertrack; - BYTE numchannels; // number of channels used - BYTE panpos[32]; // voice pan positions -} MTMHEADER; - - -#pragma pack() - - -BOOL CSoundFile::ReadMTM(LPCBYTE lpStream, DWORD dwMemLength) -//----------------------------------------------------------- -{ - MTMHEADER *pmh = (MTMHEADER *)lpStream; - DWORD dwMemPos = 66; - - if ((!lpStream) || (dwMemLength < 0x100)) return FALSE; - if ((strncmp(pmh->id, "MTM", 3)) || (pmh->numchannels > 32) - || (pmh->numsamples >= MAX_SAMPLES) || (!pmh->numsamples) - || (!pmh->numtracks) || (!pmh->numchannels) - || (!pmh->lastpattern) || (pmh->lastpattern > MAX_PATTERNS)) - return FALSE; - strncpy(m_szNames[0], pmh->songname, 20); - m_szNames[0][20] = 0; - if (dwMemPos + 37*pmh->numsamples + 128 + 192*pmh->numtracks - + 64 * (pmh->lastpattern+1) + pmh->commentsize >= dwMemLength) - return FALSE; - m_nType = MOD_TYPE_MTM; - m_nSamples = pmh->numsamples; - m_nChannels = pmh->numchannels; - // Reading instruments - for (UINT i=1; i<=m_nSamples; i++) - { - MTMSAMPLE *pms = (MTMSAMPLE *)(lpStream + dwMemPos); - strncpy(m_szNames[i], pms->samplename, 22); - m_szNames[i][22] = 0; - Ins[i].nVolume = pms->volume << 2; - Ins[i].nGlobalVol = 64; - DWORD len = pms->length; - if ((len > 4) && (len <= MAX_SAMPLE_LENGTH)) - { - Ins[i].nLength = len; - Ins[i].nLoopStart = pms->reppos; - Ins[i].nLoopEnd = pms->repend; - if (Ins[i].nLoopEnd > Ins[i].nLength) - Ins[i].nLoopEnd = Ins[i].nLength; - if (Ins[i].nLoopStart + 4 >= Ins[i].nLoopEnd) - Ins[i].nLoopStart = Ins[i].nLoopEnd = 0; - if (Ins[i].nLoopEnd) Ins[i].uFlags |= CHN_LOOP; - Ins[i].nFineTune = MOD2XMFineTune(pms->finetune); - if (pms->attribute & 0x01) - { - Ins[i].uFlags |= CHN_16BIT; - Ins[i].nLength >>= 1; - Ins[i].nLoopStart >>= 1; - Ins[i].nLoopEnd >>= 1; - } - Ins[i].nPan = 128; - } - dwMemPos += 37; - } - // Setting Channel Pan Position - for (UINT ich=0; ich<m_nChannels; ich++) - { - ChnSettings[ich].nPan = ((pmh->panpos[ich] & 0x0F) << 4) + 8; - ChnSettings[ich].nVolume = 64; - } - // Reading pattern order - memcpy(Order, lpStream + dwMemPos, pmh->lastorder+1); - dwMemPos += 128; - // Reading Patterns - LPCBYTE pTracks = lpStream + dwMemPos; - dwMemPos += 192 * pmh->numtracks; - LPWORD pSeq = (LPWORD)(lpStream + dwMemPos); - for (UINT pat=0; pat<=pmh->lastpattern; pat++) - { - PatternSize[pat] = 64; - if ((Patterns[pat] = AllocatePattern(64, m_nChannels)) == NULL) break; - for (UINT n=0; n<32; n++) if ((pSeq[n]) && (pSeq[n] <= pmh->numtracks) && (n < m_nChannels)) - { - LPCBYTE p = pTracks + 192 * (pSeq[n]-1); - MODCOMMAND *m = Patterns[pat] + n; - for (UINT i=0; i<64; i++, m+=m_nChannels, p+=3) - { - if (p[0] & 0xFC) m->note = (p[0] >> 2) + 37; - m->instr = ((p[0] & 0x03) << 4) | (p[1] >> 4); - UINT cmd = p[1] & 0x0F; - UINT param = p[2]; - if (cmd == 0x0A) - { - if (param & 0xF0) param &= 0xF0; else param &= 0x0F; - } - m->command = cmd; - m->param = param; - if ((cmd) || (param)) ConvertModCommand(m); - } - } - pSeq += 32; - } - dwMemPos += 64*(pmh->lastpattern+1); - if ((pmh->commentsize) && (dwMemPos + pmh->commentsize < dwMemLength)) - { - UINT n = pmh->commentsize; - m_lpszSongComments = new char[n+1]; - if (m_lpszSongComments) - { - memcpy(m_lpszSongComments, lpStream+dwMemPos, n); - m_lpszSongComments[n] = 0; - for (UINT i=0; i<n; i++) - { - if (!m_lpszSongComments[i]) - { - m_lpszSongComments[i] = ((i+1) % 40) ? 0x20 : 0x0D; - } - } - } - } - dwMemPos += pmh->commentsize; - // Reading Samples - for (UINT ismp=1; ismp<=m_nSamples; ismp++) - { - if (dwMemPos >= dwMemLength) break; - dwMemPos += ReadSample(&Ins[ismp], (Ins[ismp].uFlags & CHN_16BIT) ? RS_PCM16U : RS_PCM8U, - (LPSTR)(lpStream + dwMemPos), dwMemLength - dwMemPos); - } - m_nMinPeriod = 64; - m_nMaxPeriod = 32767; - return TRUE; -} - |