static int MTM_Init(void)
{
if(!(mtmtrk=(MTMNOTE*)MikMod_calloc(64,sizeof(MTMNOTE)))) return 0;
if(!(mh=(MTMHEADER*)MikMod_malloc(sizeof(MTMHEADER)))) return 0;
return 1;
}
/* Loads all patterns of a modfile and converts them into the 3 byte format. */
static BOOL ML_LoadPatterns(void)
{
int t, s, tracks = 0;
if (!AllocPatterns()) {
return 0;
}
if (!AllocTracks()) {
return 0;
}
/* Allocate temporary buffer for loading and converting the patterns */
if (!(patbuf = (MODNOTE *)MikMod_calloc(64U * of.numchn, sizeof(MODNOTE))))
return 0;
/* patterns start here */
_mm_fseek(modreader, 0xA66, SEEK_SET);
for (t = 0; t < of.numpat; t++) {
/* Load the pattern into the temp buffer and convert it */
for (s = 0; s < (64U * of.numchn); s++) {
patbuf[s].a = _mm_read_UBYTE(modreader);
patbuf[s].b = _mm_read_UBYTE(modreader);
patbuf[s].c = _mm_read_UBYTE(modreader);
patbuf[s].d = _mm_read_UBYTE(modreader);
}
for (s = 0; s < of.numchn; s++) {
if (!(of.tracks[tracks++] = ConvertTrack(patbuf + s))) {
return 0;
}
}
}
return 1;
}
static BOOL AMF_Init(void)
{
if(!(mh=(AMFHEADER*)MikMod_malloc(sizeof(AMFHEADER)))) return 0;
if(!(track=(AMFNOTE*)MikMod_calloc(64,sizeof(AMFNOTE)))) return 0;
return 1;
}
/* If either parameter is -1, the current set value will be retained. */
BOOL MikMod_SetNumVoices_internal(int music, int sfx)
{
BOOL resume = 0;
int t, oldchn = 0;
if((!music)&&(!sfx)) return 1;
_mm_critical = 1;
if(isplaying) {
MikMod_DisableOutput_internal();
oldchn = md_numchn;
resume = 1;
}
if(sfxinfo) MikMod_free(sfxinfo);
if(md_sample) MikMod_free(md_sample);
md_sample = NULL;
sfxinfo = NULL;
if(music!=-1) md_sngchn = music;
if(sfx!=-1) md_sfxchn = sfx;
md_numchn = md_sngchn + md_sfxchn;
LimitHardVoices(md_driver->HardVoiceLimit);
LimitSoftVoices(md_driver->SoftVoiceLimit);
if(md_driver->SetNumVoices()) {
MikMod_Exit_internal();
if(_mm_errno)
if(_mm_errorhandler!=NULL) _mm_errorhandler();
md_numchn = md_softchn = md_hardchn = md_sfxchn = md_sngchn = 0;
return 1;
}
if(md_sngchn+md_sfxchn)
md_sample=(SAMPLE**)MikMod_calloc(md_sngchn+md_sfxchn,sizeof(SAMPLE*));
if(md_sfxchn)
sfxinfo = (UBYTE *)MikMod_calloc(md_sfxchn,sizeof(UBYTE));
/* make sure the player doesn't start with garbage */
for(t=oldchn;t<md_numchn;t++) Voice_Stop_internal(t);
sfxpool = 0;
if(resume) MikMod_EnableOutput_internal();
_mm_critical = 0;
return 0;
}
BOOL AllocTracks(void)
{
if(!of.numtrk) {
_mm_errno=MMERR_NOT_A_MODULE;
return 0;
}
if(!(of.tracks=(UBYTE **)MikMod_calloc(of.numtrk,sizeof(UBYTE *)))) return 0;
return 1;
}
BOOL AllocPositions(int total)
{
if(!total) {
_mm_errno=MMERR_NOT_A_MODULE;
return 0;
}
if(!(of.positions=MikMod_calloc(total,sizeof(UWORD)))) return 0;
return 1;
}
BOOL AllocPatterns(void)
{
int s,t,tracks = 0;
if((!of.numpat)||(!of.numchn)) {
_mm_errno=MMERR_NOT_A_MODULE;
return 0;
}
/* Allocate track sequencing array */
if(!(of.patterns=(UWORD*)MikMod_calloc((ULONG)(of.numpat+1)*of.numchn,sizeof(UWORD)))) return 0;
if(!(of.pattrows=(UWORD*)MikMod_calloc(of.numpat+1,sizeof(UWORD)))) return 0;
for(t=0;t<=of.numpat;t++) {
of.pattrows[t]=64;
for(s=0;s<of.numchn;s++)
of.patterns[(t*of.numchn)+s]=tracks++;
}
return 1;
}
BOOL AllocSamples(void)
{
UWORD u;
if(!of.numsmp) {
_mm_errno=MMERR_NOT_A_MODULE;
return 0;
}
if(!(of.samples=(SAMPLE*)MikMod_calloc(of.numsmp,sizeof(SAMPLE)))) return 0;
for(u=0;u<of.numsmp;u++) {
of.samples[u].panning = 128; /* center */
of.samples[u].handle = -1;
of.samples[u].globvol = 64;
of.samples[u].volume = 64;
}
return 1;
}
BOOL AllocInstruments(void)
{
int t,n;
if(!of.numins) {
_mm_errno=MMERR_NOT_A_MODULE;
return 0;
}
if(!(of.instruments=(INSTRUMENT*)MikMod_calloc(of.numins,sizeof(INSTRUMENT))))
return 0;
for(t=0;t<of.numins;t++) {
for(n=0;n<INSTNOTES;n++) {
/* Init note / sample lookup table */
of.instruments[t].samplenote[n] = n;
of.instruments[t].samplenumber[n] = t;
}
of.instruments[t].globvol = 64;
}
return 1;
}
int IT_Load(int curious)
{
int t,u,lp;
INSTRUMENT *d;
SAMPLE *q;
int compressed=0;
numtrk=0;
filters=0;
/* try to read module header */
_mm_read_I_ULONG(modreader); /* kill the 4 byte header */
_mm_read_string(mh->songname,26,modreader);
_mm_read_UBYTES(mh->blank01,2,modreader);
mh->ordnum =_mm_read_I_UWORD(modreader);
mh->insnum =_mm_read_I_UWORD(modreader);
mh->smpnum =_mm_read_I_UWORD(modreader);
mh->patnum =_mm_read_I_UWORD(modreader);
mh->cwt =_mm_read_I_UWORD(modreader);
mh->cmwt =_mm_read_I_UWORD(modreader);
mh->flags =_mm_read_I_UWORD(modreader);
mh->special =_mm_read_I_UWORD(modreader);
mh->globvol =_mm_read_UBYTE(modreader);
mh->mixvol =_mm_read_UBYTE(modreader);
mh->initspeed =_mm_read_UBYTE(modreader);
mh->inittempo =_mm_read_UBYTE(modreader);
mh->pansep =_mm_read_UBYTE(modreader);
mh->zerobyte =_mm_read_UBYTE(modreader);
mh->msglength =_mm_read_I_UWORD(modreader);
mh->msgoffset =_mm_read_I_ULONG(modreader);
_mm_read_UBYTES(mh->blank02,4,modreader);
_mm_read_UBYTES(mh->pantable,64,modreader);
_mm_read_UBYTES(mh->voltable,64,modreader);
if(_mm_eof(modreader)) {
_mm_errno=MMERR_LOADING_HEADER;
return 0;
}
/* set module variables */
of.songname = DupStr(mh->songname,26,0); /* make a cstr of songname */
of.reppos = 0;
of.numpat = mh->patnum;
of.numins = mh->insnum;
of.numsmp = mh->smpnum;
of.initspeed = mh->initspeed;
of.inittempo = mh->inittempo;
of.initvolume = mh->globvol;
of.flags |= UF_BGSLIDES | UF_ARPMEM;
if (!(mh->flags & 1))
of.flags |= UF_PANNING;
of.bpmlimit=32;
if(mh->songname[25]) {
of.numvoices=1+mh->songname[25];
#ifdef MIKMOD_DEBUG
fprintf(stderr,"Embedded IT limitation to %d voices\n",of.numvoices);
#endif
}
/* set the module type */
/* 2.17 : IT 2.14p4 */
/* 2.16 : IT 2.14p3 with resonant filters */
/* 2.15 : IT 2.14p3 (improved compression) */
if((mh->cwt<=0x219)&&(mh->cwt>=0x217))
of.modtype=StrDup(IT_Version[mh->cmwt<0x214?4:5]);
else if (mh->cwt>=0x215)
of.modtype=StrDup(IT_Version[mh->cmwt<0x214?2:3]);
else {
of.modtype = StrDup(IT_Version[mh->cmwt<0x214?0:1]);
of.modtype[mh->cmwt<0x214?15:26] = (mh->cwt>>8)+'0';
of.modtype[mh->cmwt<0x214?17:28] = ((mh->cwt>>4)&0xf)+'0';
of.modtype[mh->cmwt<0x214?18:29] = ((mh->cwt)&0xf)+'0';
}
if(mh->flags&8)
of.flags |= UF_XMPERIODS | UF_LINEAR;
if((mh->cwt>=0x106)&&(mh->flags&16))
old_effect=S3MIT_OLDSTYLE;
else
old_effect=0;
/* set panning positions */
if (mh->flags & 1)
for(t=0;t<64;t++) {
mh->pantable[t]&=0x7f;
if(mh->pantable[t]<64)
of.panning[t]=mh->pantable[t]<<2;
else if(mh->pantable[t]==64)
of.panning[t]=255;
else if(mh->pantable[t]==100)
of.panning[t]=PAN_SURROUND;
else if(mh->pantable[t]==127)
of.panning[t]=PAN_CENTER;
else {
_mm_errno=MMERR_LOADING_HEADER;
return 0;
}
}
else
for(t=0;t<64;t++)
of.panning[t]=PAN_CENTER;
/* set channel volumes */
memcpy(of.chanvol,mh->voltable,64);
/* read the order data */
if(!AllocPositions(mh->ordnum)) return 0;
if(!(origpositions=MikMod_calloc(mh->ordnum,sizeof(UWORD)))) return 0;
for(t=0;t<mh->ordnum;t++) {
origpositions[t]=_mm_read_UBYTE(modreader);
if((origpositions[t]>mh->patnum)&&(origpositions[t]<254))
origpositions[t]=255;
}
if(_mm_eof(modreader)) {
_mm_errno = MMERR_LOADING_HEADER;
return 0;
}
poslookupcnt=mh->ordnum;
S3MIT_CreateOrders(curious);
if(!(paraptr=(ULONG*)MikMod_malloc((mh->insnum+mh->smpnum+of.numpat)*
sizeof(ULONG)))) return 0;
/* read the instrument, sample, and pattern parapointers */
_mm_read_I_ULONGS(paraptr,mh->insnum+mh->smpnum+of.numpat,modreader);
if(_mm_eof(modreader)) {
_mm_errno = MMERR_LOADING_HEADER;
return 0;
}
/* Check for and load midi information for resonant filters */
if(mh->cmwt>=0x216) {
if(mh->special&8) {
IT_LoadMidiConfiguration(modreader);
if(_mm_eof(modreader)) {
_mm_errno = MMERR_LOADING_HEADER;
return 0;
}
} else
IT_LoadMidiConfiguration(NULL);
filters=1;
}
/* Check for and load song comment */
if((mh->special&1)&&(mh->cwt>=0x104)&&(mh->msglength)) {
_mm_fseek(modreader,(long)(mh->msgoffset),SEEK_SET);
if(!ReadComment(mh->msglength)) return 0;
}
if(!(mh->flags&4)) of.numins=of.numsmp;
if(!AllocSamples()) return 0;
if(!AllocLinear()) return 0;
/* Load all samples */
q = of.samples;
for(t=0;t<mh->smpnum;t++) {
ITSAMPLE s;
/* seek to sample position */
_mm_fseek(modreader,(long)(paraptr[mh->insnum+t]+4),SEEK_SET);
/* load sample info */
_mm_read_string(s.filename,12,modreader);
s.zerobyte = _mm_read_UBYTE(modreader);
s.globvol = _mm_read_UBYTE(modreader);
s.flag = _mm_read_UBYTE(modreader);
s.volume = _mm_read_UBYTE(modreader);
_mm_read_string(s.sampname,26,modreader);
s.convert = _mm_read_UBYTE(modreader);
s.panning = _mm_read_UBYTE(modreader);
s.length = _mm_read_I_ULONG(modreader);
s.loopbeg = _mm_read_I_ULONG(modreader);
s.loopend = _mm_read_I_ULONG(modreader);
s.c5spd = _mm_read_I_ULONG(modreader);
s.susbegin = _mm_read_I_ULONG(modreader);
s.susend = _mm_read_I_ULONG(modreader);
s.sampoffset = _mm_read_I_ULONG(modreader);
s.vibspeed = _mm_read_UBYTE(modreader);
s.vibdepth = _mm_read_UBYTE(modreader);
s.vibrate = _mm_read_UBYTE(modreader);
s.vibwave = _mm_read_UBYTE(modreader);
/* Generate an error if c5spd is > 512k, or samplelength > 256 megs
(nothing would EVER be that high) */
if(_mm_eof(modreader)||(s.c5spd>0x7ffffL)||(s.length>0xfffffffUL)) {
_mm_errno = MMERR_LOADING_SAMPLEINFO;
return 0;
}
/* Reality check for sample loop information */
if((s.flag&16)&&
((s.loopbeg>0xfffffffUL)||(s.loopend>0xfffffffUL))) {
_mm_errno = MMERR_LOADING_SAMPLEINFO;
return 0;
}
q->samplename = DupStr(s.sampname,26,0);
q->speed = s.c5spd / 2;
q->panning = ((s.panning&127)==64)?255:(s.panning&127)<<2;
q->length = s.length;
q->loopstart = s.loopbeg;
q->loopend = s.loopend;
q->volume = s.volume;
q->globvol = s.globvol;
q->seekpos = s.sampoffset;
/* Convert speed to XM linear finetune */
if(of.flags&UF_LINEAR)
q->speed=speed_to_finetune(s.c5spd,t);
if(s.panning&128) q->flags|=SF_OWNPAN;
if(s.vibrate) {
q->vibflags |= AV_IT;
q->vibtype = s.vibwave;
q->vibsweep = s.vibrate * 2;
q->vibdepth = s.vibdepth;
q->vibrate = s.vibspeed;
}
if(s.flag&2) q->flags|=SF_16BITS;
if((s.flag&8)&&(mh->cwt>=0x214)) {
q->flags|=SF_ITPACKED;
compressed=1;
}
if(s.flag&16) q->flags|=SF_LOOP;
if(s.flag&64) q->flags|=SF_BIDI;
if(mh->cwt>=0x200) {
if(s.convert&1) q->flags|=SF_SIGNED;
if(s.convert&4) q->flags|=SF_DELTA;
}
q++;
}
/* Load instruments if instrument mode flag enabled */
if(mh->flags&4) {
if(!AllocInstruments()) return 0;
d=of.instruments;
of.flags|=UF_NNA|UF_INST;
for(t=0;t<mh->insnum;t++) {
ITINSTHEADER ih;
/* seek to instrument position */
_mm_fseek(modreader,paraptr[t]+4,SEEK_SET);
/* load instrument info */
_mm_read_string(ih.filename,12,modreader);
ih.zerobyte = _mm_read_UBYTE(modreader);
if(mh->cwt<0x200) {
/* load IT 1.xx inst header */
ih.volflg = _mm_read_UBYTE(modreader);
ih.volbeg = _mm_read_UBYTE(modreader);
ih.volend = _mm_read_UBYTE(modreader);
ih.volsusbeg = _mm_read_UBYTE(modreader);
ih.volsusend = _mm_read_UBYTE(modreader);
_mm_read_I_UWORD(modreader);
ih.fadeout = _mm_read_I_UWORD(modreader);
ih.nna = _mm_read_UBYTE(modreader);
ih.dnc = _mm_read_UBYTE(modreader);
} else {
/* Read IT200+ header */
ih.nna = _mm_read_UBYTE(modreader);
ih.dct = _mm_read_UBYTE(modreader);
ih.dca = _mm_read_UBYTE(modreader);
ih.fadeout = _mm_read_I_UWORD(modreader);
ih.ppsep = _mm_read_UBYTE(modreader);
ih.ppcenter = _mm_read_UBYTE(modreader);
ih.globvol = _mm_read_UBYTE(modreader);
ih.chanpan = _mm_read_UBYTE(modreader);
ih.rvolvar = _mm_read_UBYTE(modreader);
ih.rpanvar = _mm_read_UBYTE(modreader);
}
ih.trkvers = _mm_read_I_UWORD(modreader);
ih.numsmp = _mm_read_UBYTE(modreader);
_mm_read_UBYTE(modreader);
_mm_read_string(ih.name,26,modreader);
_mm_read_UBYTES(ih.blank01,6,modreader);
_mm_read_I_UWORDS(ih.samptable,ITNOTECNT,modreader);
if(mh->cwt<0x200) {
/* load IT 1xx volume envelope */
_mm_read_UBYTES(ih.volenv,200,modreader);
for(lp=0;lp<ITENVCNT;lp++) {
ih.oldvoltick[lp] = _mm_read_UBYTE(modreader);
ih.volnode[lp] = _mm_read_UBYTE(modreader);
}
} else {
/* load IT 2xx volume, pan and pitch envelopes */
#if defined __STDC__ || defined _MSC_VER || defined MPW_C
#define IT_LoadEnvelope(name,type) \
ih. name##flg =_mm_read_UBYTE(modreader); \
ih. name##pts =_mm_read_UBYTE(modreader); \
ih. name##beg =_mm_read_UBYTE(modreader); \
ih. name##end =_mm_read_UBYTE(modreader); \
ih. name##susbeg=_mm_read_UBYTE(modreader); \
ih. name##susend=_mm_read_UBYTE(modreader); \
for(lp=0;lp<ITENVCNT;lp++) { \
ih. name##node[lp]=_mm_read_##type (modreader); \
ih. name##tick[lp]=_mm_read_I_UWORD(modreader); \
} \
_mm_read_UBYTE(modreader)
#else
#define IT_LoadEnvelope(name,type) \
ih. name/**/flg =_mm_read_UBYTE(modreader); \
ih. name/**/pts =_mm_read_UBYTE(modreader); \
ih. name/**/beg =_mm_read_UBYTE(modreader); \
ih. name/**/end =_mm_read_UBYTE(modreader); \
ih. name/**/susbeg=_mm_read_UBYTE(modreader); \
ih. name/**/susend=_mm_read_UBYTE(modreader); \
for(lp=0;lp<ITENVCNT;lp++) { \
ih. name/**/node[lp]=_mm_read_/**/type (modreader); \
ih. name/**/tick[lp]=_mm_read_I_UWORD(modreader); \
} \
_mm_read_UBYTE(modreader)
#endif
IT_LoadEnvelope(vol,UBYTE);
IT_LoadEnvelope(pan,SBYTE);
IT_LoadEnvelope(pit,SBYTE);
#undef IT_LoadEnvelope
}
if(_mm_eof(modreader)) {
_mm_errno = MMERR_LOADING_SAMPLEINFO;
return 0;
}
d->volflg|=EF_VOLENV;
d->insname = DupStr(ih.name,26,0);
d->nnatype = ih.nna & NNA_MASK;
if(mh->cwt<0x200) {
d->volfade=ih.fadeout<< 6;
if(ih.dnc) {
d->dct=DCT_NOTE;
d->dca=DCA_CUT;
}
if(ih.volflg&1) d->volflg|=EF_ON;
if(ih.volflg&2) d->volflg|=EF_LOOP;
if(ih.volflg&4) d->volflg|=EF_SUSTAIN;
/* XM conversion of IT envelope Array */
d->volbeg = ih.volbeg;
d->volend = ih.volend;
d->volsusbeg = ih.volsusbeg;
d->volsusend = ih.volsusend;
if(ih.volflg&1) {
for(u=0;u<ITENVCNT;u++)
if(ih.oldvoltick[d->volpts]!=0xff) {
d->volenv[d->volpts].val=(ih.volnode[d->volpts]<<2);
d->volenv[d->volpts].pos=ih.oldvoltick[d->volpts];
d->volpts++;
} else
break;
}
} else {
d->panning=((ih.chanpan&127)==64)?255:(ih.chanpan&127)<<2;
if(!(ih.chanpan&128)) d->flags|=IF_OWNPAN;
if(!(ih.ppsep & 128)) {
d->pitpansep=ih.ppsep<<2;
d->pitpancenter=ih.ppcenter;
d->flags|=IF_PITCHPAN;
}
d->globvol=ih.globvol>>1;
d->volfade=ih.fadeout<<5;
d->dct =ih.dct;
d->dca =ih.dca;
if(mh->cwt>=0x204) {
d->rvolvar = ih.rvolvar;
d->rpanvar = ih.rpanvar;
}
#if defined __STDC__ || defined _MSC_VER || defined MPW_C
#define IT_ProcessEnvelope(name) \
if(ih. name##flg&1) d-> name##flg|=EF_ON; \
if(ih. name##flg&2) d-> name##flg|=EF_LOOP; \
if(ih. name##flg&4) d-> name##flg|=EF_SUSTAIN; \
d-> name##pts=ih. name##pts; \
d-> name##beg=ih. name##beg; \
d-> name##end=ih. name##end; \
d-> name##susbeg=ih. name##susbeg; \
d-> name##susend=ih. name##susend; \
\
for(u=0;u<ih. name##pts;u++) \
d-> name##env[u].pos=ih. name##tick[u]; \
\
if((d-> name##flg&EF_ON)&&(d-> name##pts<2)) \
d-> name##flg&=~EF_ON
#else
#define IT_ProcessEnvelope(name) \
if(ih. name/**/flg&1) d-> name/**/flg|=EF_ON; \
if(ih. name/**/flg&2) d-> name/**/flg|=EF_LOOP; \
if(ih. name/**/flg&4) d-> name/**/flg|=EF_SUSTAIN; \
d-> name/**/pts=ih. name/**/pts; \
d-> name/**/beg=ih. name/**/beg; \
d-> name/**/end=ih. name/**/end; \
d-> name/**/susbeg=ih. name/**/susbeg; \
d-> name/**/susend=ih. name/**/susend; \
\
for(u=0;u<ih. name/**/pts;u++) \
d-> name/**/env[u].pos=ih. name/**/tick[u]; \
\
if((d-> name/**/flg&EF_ON)&&(d-> name/**/pts<2)) \
d-> name/**/flg&=~EF_ON
#endif
IT_ProcessEnvelope(vol);
// Secunia SA37775
if (ih.volpts>= ENVPOINTS)
ih.volpts = ENVPOINTS-1;
for(u=0;u<ih.volpts;u++)
d->volenv[u].val=(ih.volnode[u]<<2);
IT_ProcessEnvelope(pan);
for(u=0;u<ih.panpts;u++)
d->panenv[u].val=
ih.pannode[u]==32?255:(ih.pannode[u]+32)<<2;
IT_ProcessEnvelope(pit);
for(u=0;u<ih.pitpts;u++)
d->pitenv[u].val=ih.pitnode[u]+32;
#undef IT_ProcessEnvelope
if(ih.pitflg&0x80) {
/* filter envelopes not supported yet */
d->pitflg&=~EF_ON;
ih.pitpts=ih.pitbeg=ih.pitend=0;
#ifdef MIKMOD_DEBUG
{
static int warn=0;
if(!warn)
fprintf(stderr, "\rFilter envelopes not supported yet\n");
warn=1;
}
#endif
}
}
for(u=0;u<ITNOTECNT;u++) {
d->samplenote[u]=(ih.samptable[u]&255);
d->samplenumber[u]=
(ih.samptable[u]>>8)?((ih.samptable[u]>>8)-1):0xffff;
if(d->samplenumber[u]>=of.numsmp)
d->samplenote[u]=255;
else if (of.flags&UF_LINEAR) {
int note=(int)d->samplenote[u]+noteindex[d->samplenumber[u]];
d->samplenote[u]=(note<0)?0:(note>255?255:note);
}
}
d++;
}
} else if(of.flags & UF_LINEAR) {
