load_imf.c
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上传日期:2014-04-03
资源大小:7248k
文件大小:18k
源码类别:
Windows CE
开发平台:
C/C++
- /* MikMod sound library
- (c) 1998, 1999, 2000, 2001, 2002 Miodrag Vallat and others - see file
- AUTHORS for complete list.
- This library is free software; you can redistribute it and/or modify
- it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
- */
- /*==============================================================================
- $Id: load_imf.c,v 1.2 2004/02/06 19:29:03 raph Exp $
- Imago Orpheus (IMF) module loader
- ==============================================================================*/
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include <stdio.h>
- #ifdef HAVE_MEMORY_H
- #include <memory.h>
- #endif
- #include <string.h>
- #include "mikmod_internals.h"
- #ifdef SUNOS
- extern int fprintf(FILE *, const char *, ...);
- #endif
- /*========== Module structure */
- /* module header */
- typedef struct IMFHEADER {
- CHAR songname[32];
- UWORD ordnum;
- UWORD patnum;
- UWORD insnum;
- UWORD flags;
- UBYTE initspeed;
- UBYTE inittempo;
- UBYTE mastervol;
- UBYTE mastermult;
- UBYTE orders[256];
- } IMFHEADER;
- /* channel settings */
- typedef struct IMFCHANNEL {
- CHAR name[12];
- UBYTE chorus;
- UBYTE reverb;
- UBYTE pan;
- UBYTE status;
- } IMFCHANNEL;
- /* instrument header */
- #define IMFNOTECNT (10*OCTAVE)
- #define IMFENVCNT (16*2)
- typedef struct IMFINSTHEADER {
- CHAR name[32];
- UBYTE what[IMFNOTECNT];
- UWORD volenv[IMFENVCNT];
- UWORD panenv[IMFENVCNT];
- UWORD pitenv[IMFENVCNT];
- UBYTE volpts;
- UBYTE volsus;
- UBYTE volbeg;
- UBYTE volend;
- UBYTE volflg;
- UBYTE panpts;
- UBYTE pansus;
- UBYTE panbeg;
- UBYTE panend;
- UBYTE panflg;
- UBYTE pitpts;
- UBYTE pitsus;
- UBYTE pitbeg;
- UBYTE pitend;
- UBYTE pitflg;
- UWORD volfade;
- UWORD numsmp;
- ULONG signature;
- } IMFINSTHEADER;
- /* sample header */
- typedef struct IMFWAVHEADER {
- CHAR samplename[13];
- ULONG length;
- ULONG loopstart;
- ULONG loopend;
- ULONG samplerate;
- UBYTE volume;
- UBYTE pan;
- UBYTE flags;
- } IMFWAVHEADER;
- typedef struct IMFNOTE {
- UBYTE note,ins,eff1,dat1,eff2,dat2;
- } IMFNOTE;
- /*========== Loader variables */
- static CHAR IMF_Version[]="Imago Orpheus";
- static IMFNOTE *imfpat=NULL;
- static IMFHEADER *mh=NULL;
- /*========== Loader code */
- BOOL IMF_Test(void)
- {
- UBYTE id[4];
- _mm_fseek(modreader,0x3c,SEEK_SET);
- if(!_mm_read_UBYTES(id,4,modreader)) return 0;
- if(!memcmp(id,"IM10",4)) return 1;
- return 0;
- }
- BOOL IMF_Init(void)
- {
- if(!(imfpat=(IMFNOTE*)_mm_malloc(32*256*sizeof(IMFNOTE)))) return 0;
- if(!(mh=(IMFHEADER*)_mm_malloc(sizeof(IMFHEADER)))) return 0;
- return 1;
- }
- void IMF_Cleanup(void)
- {
- FreeLinear();
- _mm_free(imfpat);
- _mm_free(mh);
- }
- static BOOL IMF_ReadPattern(SLONG size,UWORD rows)
- {
- int row=0,flag,ch;
- IMFNOTE *n,dummy;
- /* clear pattern data */
- memset(imfpat,255,32*256*sizeof(IMFNOTE));
- while((size>0)&&(row<rows)) {
- flag=_mm_read_UBYTE(modreader);size--;
- if(_mm_eof(modreader)) {
- _mm_errno=MMERR_LOADING_PATTERN;
- return 0;
- }
- if(flag) {
- ch=remap[flag&31];
- if(ch!=-1)
- n=&imfpat[256*ch+row];
- else
- n=&dummy;
- if(flag&32) {
- n->note=_mm_read_UBYTE(modreader);
- if(n->note>=0xa0) n->note=0xa0; /* note off */
- n->ins =_mm_read_UBYTE(modreader);
- size-=2;
- }
- if(flag&64) {
- size-=2;
- n->eff2=_mm_read_UBYTE(modreader);
- n->dat2=_mm_read_UBYTE(modreader);
- }
- if(flag&128) {
- n->eff1=_mm_read_UBYTE(modreader);
- n->dat1=_mm_read_UBYTE(modreader);
- size-=2;
- }
- } else row++;
- }
- if((size)||(row!=rows)) {
- _mm_errno=MMERR_LOADING_PATTERN;
- return 0;
- }
- return 1;
- }
- static void IMF_ProcessCmd(UBYTE eff,UBYTE inf)
- {
- if((eff)&&(eff!=255))
- switch (eff) {
- case 0x01: /* set tempo */
- UniEffect(UNI_S3MEFFECTA,inf);
- break;
- case 0x02: /* set BPM */
- if(inf>=0x20) UniEffect(UNI_S3MEFFECTT,inf);
- break;
- case 0x03: /* tone portamento */
- UniEffect(UNI_ITEFFECTG,inf);
- break;
- case 0x04: /* porta + volslide */
- UniEffect(UNI_ITEFFECTG,inf);
- UniEffect(UNI_S3MEFFECTD,0);
- break;
- case 0x05: /* vibrato */
- UniEffect(UNI_XMEFFECT4,inf);
- break;
- case 0x06: /* vibrato + volslide */
- UniEffect(UNI_XMEFFECT6,inf);
- break;
- case 0x07: /* fine vibrato */
- UniEffect(UNI_ITEFFECTU,inf);
- break;
- case 0x08: /* tremolo */
- UniEffect(UNI_S3MEFFECTR,inf);
- break;
- case 0x09: /* arpeggio */
- UniPTEffect(0x0,inf);
- break;
- case 0x0a: /* panning */
- UniPTEffect(0x8,(inf>=128)?255:(inf<<1));
- break;
- case 0x0b: /* pan slide */
- UniEffect(UNI_XMEFFECTP,inf);
- break;
- case 0x0c: /* set channel volume */
- if(inf<=64) UniPTEffect(0xc,inf);
- break;
- case 0x0d: /* volume slide */
- UniEffect(UNI_S3MEFFECTD,inf);
- break;
- case 0x0e: /* fine volume slide */
- if(inf) {
- if(inf>>4)
- UniEffect(UNI_S3MEFFECTD,0x0f|inf);
- else
- UniEffect(UNI_S3MEFFECTD,0xf0|inf);
- } else
- UniEffect(UNI_S3MEFFECTD,0);
- break;
- case 0x0f: /* set finetune */
- UniPTEffect(0xe,0x50|(inf>>4));
- break;
- #ifdef MIKMOD_DEBUG
- case 0x10: /* note slide up */
- case 0x11: /* not slide down */
- fprintf(stderr,"rIMF effect 0x10/0x11 (note slide)"
- " not implemented (eff=%2X inf=%2X)n",eff,inf);
- break;
- #endif
- case 0x12: /* slide up */
- UniEffect(UNI_S3MEFFECTF,inf);
- break;
- case 0x13: /* slide down */
- UniEffect(UNI_S3MEFFECTE,inf);
- break;
- case 0x14: /* fine slide up */
- if (inf) {
- if (inf<0x40)
- UniEffect(UNI_S3MEFFECTF,0xe0|(inf>>2));
- else
- UniEffect(UNI_S3MEFFECTF,0xf0|(inf>>4));
- } else
- UniEffect(UNI_S3MEFFECTF,0);
- break;
- case 0x15: /* fine slide down */
- if (inf) {
- if (inf<0x40)
- UniEffect(UNI_S3MEFFECTE,0xe0|(inf>>2));
- else
- UniEffect(UNI_S3MEFFECTE,0xf0|(inf>>4));
- } else
- UniEffect(UNI_S3MEFFECTE,0);
- break;
- /* 0x16 set filter cutoff (awe32) */
- /* 0x17 filter side + resonance (awe32) */
- case 0x18: /* sample offset */
- UniPTEffect(0x9,inf);
- break;
- #ifdef MIKMOD_DEBUG
- case 0x19: /* set fine sample offset */
- fprintf(stderr,"rIMF effect 0x19 (fine sample offset)"
- " not implemented (inf=%2X)n",inf);
- break;
- #endif
- case 0x1a: /* keyoff */
- UniWriteByte(UNI_KEYOFF);
- break;
- case 0x1b: /* retrig */
- UniEffect(UNI_S3MEFFECTQ,inf);
- break;
- case 0x1c: /* tremor */
- UniEffect(UNI_S3MEFFECTI,inf);
- break;
- case 0x1d: /* position jump */
- UniPTEffect(0xb,inf);
- break;
- case 0x1e: /* pattern break */
- UniPTEffect(0xd,(inf>>4)*10+(inf&0xf));
- break;
- case 0x1f: /* set master volume */
- if(inf<=64) UniEffect(UNI_XMEFFECTG,inf<<1);
- break;
- case 0x20: /* master volume slide */
- UniEffect(UNI_XMEFFECTH,inf);
- break;
- case 0x21: /* extended effects */
- switch(inf>>4) {
- case 0x1: /* set filter */
- case 0x5: /* vibrato waveform */
- case 0x8: /* tremolo waveform */
- UniPTEffect(0xe,inf-0x10);
- break;
- case 0xa: /* pattern loop */
- UniPTEffect(0xe,0x60|(inf&0xf));
- break;
- case 0xb: /* pattern delay */
- UniPTEffect(0xe,0xe0|(inf&0xf));
- break;
- case 0x3: /* glissando */
- case 0xc: /* note cut */
- case 0xd: /* note delay */
- case 0xf: /* invert loop */
- UniPTEffect(0xe,inf);
- break;
- case 0xe: /* ignore envelope */
- UniEffect(UNI_ITEFFECTS0, 0x77); /* vol */
- UniEffect(UNI_ITEFFECTS0, 0x79); /* pan */
- UniEffect(UNI_ITEFFECTS0, 0x7b); /* pit */
- break;
- }
- break;
- /* 0x22 chorus (awe32) */
- /* 0x23 reverb (awe32) */
- }
- }
- static UBYTE* IMF_ConvertTrack(IMFNOTE* tr,UWORD rows)
- {
- int t;
- UBYTE note,ins;
- UniReset();
- for(t=0;t<rows;t++) {
- note=tr[t].note;
- ins=tr[t].ins;
- if((ins)&&(ins!=255)) UniInstrument(ins-1);
- if(note!=255) {
- if(note==0xa0) {
- UniPTEffect(0xc,0); /* Note cut */
- if(tr[t].eff1==0x0c) tr[t].eff1=0;
- if(tr[t].eff2==0x0c) tr[t].eff2=0;
- } else
- UniNote(((note>>4)*OCTAVE)+(note&0xf));
- }
- IMF_ProcessCmd(tr[t].eff1,tr[t].dat1);
- IMF_ProcessCmd(tr[t].eff2,tr[t].dat2);
- UniNewline();
- }
- return UniDup();
- }
- BOOL IMF_Load(BOOL curious)
- {
- #define IMF_SMPINCR 64
- int t,u,track=0,oldnumsmp;
- IMFCHANNEL channels[32];
- INSTRUMENT *d;
- SAMPLE *q;
- IMFWAVHEADER *wh=NULL,*s=NULL;
- ULONG *nextwav=NULL;
- UWORD wavcnt=0;
- UBYTE id[4];
- /* try to read the module header */
- _mm_read_string(mh->songname,32,modreader);
- mh->ordnum=_mm_read_I_UWORD(modreader);
- mh->patnum=_mm_read_I_UWORD(modreader);
- mh->insnum=_mm_read_I_UWORD(modreader);
- mh->flags =_mm_read_I_UWORD(modreader);
- _mm_fseek(modreader,8,SEEK_CUR);
- mh->initspeed =_mm_read_UBYTE(modreader);
- mh->inittempo =_mm_read_UBYTE(modreader);
- mh->mastervol =_mm_read_UBYTE(modreader);
- mh->mastermult=_mm_read_UBYTE(modreader);
- _mm_fseek(modreader,64,SEEK_SET);
- if(_mm_eof(modreader)) {
- _mm_errno = MMERR_LOADING_HEADER;
- return 0;
- }
- /* set module variables */
- of.songname=DupStr(mh->songname,31,1);
- of.modtype=strdup(IMF_Version);
- of.numpat=mh->patnum;
- of.numins=mh->insnum;
- of.reppos=0;
- of.initspeed=mh->initspeed;
- of.inittempo=mh->inittempo;
- of.initvolume=mh->mastervol<<1;
- of.flags |= UF_INST | UF_ARPMEM | UF_PANNING;
- if(mh->flags&1) of.flags |= UF_LINEAR;
- of.bpmlimit=32;
- /* read channel information */
- of.numchn=0;
- memset(remap,-1,32*sizeof(UBYTE));
- for(t=0;t<32;t++) {
- _mm_read_string(channels[t].name,12,modreader);
- channels[t].chorus=_mm_read_UBYTE(modreader);
- channels[t].reverb=_mm_read_UBYTE(modreader);
- channels[t].pan =_mm_read_UBYTE(modreader);
- channels[t].status=_mm_read_UBYTE(modreader);
- }
- /* bug in Imago Orpheus ? If only channel 1 is enabled, in fact we have to
- enable 16 channels */
- if(!channels[0].status) {
- for(t=1;t<16;t++) if(channels[t].status!=1) break;
- if(t==16) for(t=1;t<16;t++) channels[t].status=0;
- }
- for(t=0;t<32;t++) {
- if(channels[t].status!=2)
- remap[t]=of.numchn++;
- else
- remap[t]=-1;
- }
- for(t=0;t<32;t++)
- if(remap[t]!=-1) {
- of.panning[remap[t]]=channels[t].pan;
- of.chanvol[remap[t]]=channels[t].status?0:64;
- }
- if(_mm_eof(modreader)) {
- _mm_errno = MMERR_LOADING_HEADER;
- return 0;
- }
- /* read order list */
- _mm_read_UBYTES(mh->orders,256,modreader);
- if(_mm_eof(modreader)) {
- _mm_errno = MMERR_LOADING_HEADER;
- return 0;
- }
- of.numpos=0;
- for(t=0;t<mh->ordnum;t++)
- if(mh->orders[t]!=0xff) of.numpos++;
- if(!AllocPositions(of.numpos)) return 0;
- for(t=u=0;t<mh->ordnum;t++)
- if(mh->orders[t]!=0xff) of.positions[u++]=mh->orders[t];
- /* load pattern info */
- of.numtrk=of.numpat*of.numchn;
- if(!AllocTracks()) return 0;
- if(!AllocPatterns()) return 0;
- for(t=0;t<of.numpat;t++) {
- SLONG size;
- UWORD rows;
- size=(SLONG)_mm_read_I_UWORD(modreader);
- rows=_mm_read_I_UWORD(modreader);
- if((rows>256)||(size<4)) {
- _mm_errno=MMERR_LOADING_PATTERN;
- return 0;
- }
- of.pattrows[t]=rows;
- if(!IMF_ReadPattern(size-4,rows)) return 0;
- for(u=0;u<of.numchn;u++)
- if(!(of.tracks[track++]=IMF_ConvertTrack(&imfpat[u*256],rows)))
- return 0;
- }
- /* load instruments */
- if(!AllocInstruments()) return 0;
- d=of.instruments;
- for(oldnumsmp=t=0;t<of.numins;t++) {
- IMFINSTHEADER ih;
- memset(d->samplenumber,0xff,INSTNOTES*sizeof(UWORD));
- /* read instrument header */
- _mm_read_string(ih.name,32,modreader);
- d->insname=DupStr(ih.name,31,1);
- _mm_read_UBYTES(ih.what,IMFNOTECNT,modreader);
- _mm_fseek(modreader,8,SEEK_CUR);
- _mm_read_I_UWORDS(ih.volenv,IMFENVCNT,modreader);
- _mm_read_I_UWORDS(ih.panenv,IMFENVCNT,modreader);
- _mm_read_I_UWORDS(ih.pitenv,IMFENVCNT,modreader);
- #if defined __STDC__ || defined _MSC_VER || defined MPW_C
- #define IMF_FinishLoadingEnvelope(name)
- ih. name##pts=_mm_read_UBYTE(modreader);
- ih. name##sus=_mm_read_UBYTE(modreader);
- ih. name##beg=_mm_read_UBYTE(modreader);
- ih. name##end=_mm_read_UBYTE(modreader);
- ih. name##flg=_mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader)
- #else
- #define IMF_FinishLoadingEnvelope(name)
- ih. name/**/pts=_mm_read_UBYTE(modreader);
- ih. name/**/sus=_mm_read_UBYTE(modreader);
- ih. name/**/beg=_mm_read_UBYTE(modreader);
- ih. name/**/end=_mm_read_UBYTE(modreader);
- ih. name/**/flg=_mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader);
- _mm_read_UBYTE(modreader)
- #endif
- IMF_FinishLoadingEnvelope(vol);
- IMF_FinishLoadingEnvelope(pan);
- IMF_FinishLoadingEnvelope(pit);
- ih.volfade=_mm_read_I_UWORD(modreader);
- ih.numsmp =_mm_read_I_UWORD(modreader);
- _mm_read_UBYTES(id,4,modreader);
- /* Looks like Imago Orpheus forgets the signature for empty
- instruments following a multi-sample instrument... */
- if(memcmp(id,"II10",4) &&
- (oldnumsmp && memcmp(id,"x0x0x0x0",4))) {
- if(nextwav) free(nextwav);
- if(wh) free(wh);
- _mm_errno=MMERR_LOADING_SAMPLEINFO;
- return 0;
- }
- oldnumsmp=ih.numsmp;
- if((ih.numsmp>16)||(ih.volpts>IMFENVCNT/2)||(ih.panpts>IMFENVCNT/2)||
- (ih.pitpts>IMFENVCNT/2)||(_mm_eof(modreader))) {
- if(nextwav) free(nextwav);
- if(wh) free(wh);
- _mm_errno=MMERR_LOADING_SAMPLEINFO;
- return 0;
- }
- for(u=0;u<IMFNOTECNT;u++)
- d->samplenumber[u]=ih.what[u]>ih.numsmp?0xffff:ih.what[u]+of.numsmp;
- d->volfade=ih.volfade;
- #if defined __STDC__ || defined _MSC_VER || defined MPW_C
- #define IMF_ProcessEnvelope(name)
- for (u = 0; u < (IMFENVCNT >> 1); u++) {
- d-> name##env[u].pos = ih. name##env[u << 1];
- d-> name##env[u].val = ih. name##env[(u << 1)+ 1];
- }
- if (ih. name##flg&1) d-> name##flg|=EF_ON;
- if (ih. name##flg&2) d-> name##flg|=EF_SUSTAIN;
- if (ih. name##flg&4) d-> name##flg|=EF_LOOP;
- d-> name##susbeg=d-> name##susend=ih. name##sus;
- d-> name##beg=ih. name##beg;
- d-> name##end=ih. name##end;
- d-> name##pts=ih. name##pts;
- if ((d-> name##flg&EF_ON)&&(d-> name##pts<2))
- d-> name##flg&=~EF_ON
- #else
- #define IMF_ProcessEnvelope(name)
- for (u = 0; u < (IMFENVCNT >> 1); u++) {
- d-> name/**/env[u].pos = ih. name/**/env[u << 1];
- d-> name/**/env[u].val = ih. name/**/env[(u << 1)+ 1];
- }
- if (ih. name/**/flg&1) d-> name/**/flg|=EF_ON;
- if (ih. name/**/flg&2) d-> name/**/flg|=EF_SUSTAIN;
- if (ih. name/**/flg&4) d-> name/**/flg|=EF_LOOP;
- d-> name/**/susbeg=d-> name/**/susend=ih. name/**/sus;
- d-> name/**/beg=ih. name/**/beg;
- d-> name/**/end=ih. name/**/end;
- d-> name/**/pts=ih. name/**/pts;
- if ((d-> name/**/flg&EF_ON)&&(d-> name/**/pts<2))
- d-> name/**/flg&=~EF_ON
- #endif
- IMF_ProcessEnvelope(vol);
- IMF_ProcessEnvelope(pan);
- IMF_ProcessEnvelope(pit);
- #undef IMF_ProcessEnvelope
- if(ih.pitflg&1) {
- d->pitflg&=~EF_ON;
- #ifdef MIKMOD_DEBUG
- fprintf(stderr, "rFilter envelopes not supported yetn");
- #endif
- }
- /* gather sample information */
- for(u=0;u<ih.numsmp;u++,s++) {
- /* allocate more room for sample information if necessary */
- if(of.numsmp+u==wavcnt) {
- wavcnt+=IMF_SMPINCR;
- if(!(nextwav=realloc(nextwav,wavcnt*sizeof(ULONG)))) {
- if(wh) free(wh);
- _mm_errno=MMERR_OUT_OF_MEMORY;
- return 0;
- }
- if(!(wh=realloc(wh,wavcnt*sizeof(IMFWAVHEADER)))) {
- free(nextwav);
- _mm_errno=MMERR_OUT_OF_MEMORY;
- return 0;
- }
- s=wh+(wavcnt-IMF_SMPINCR);
- }
- _mm_read_string(s->samplename,13,modreader);
- _mm_read_UBYTE(modreader);_mm_read_UBYTE(modreader);_mm_read_UBYTE(modreader);
- s->length =_mm_read_I_ULONG(modreader);
- s->loopstart =_mm_read_I_ULONG(modreader);
- s->loopend =_mm_read_I_ULONG(modreader);
- s->samplerate=_mm_read_I_ULONG(modreader);
- s->volume =_mm_read_UBYTE(modreader)&0x7f;
- s->pan =_mm_read_UBYTE(modreader);
- _mm_fseek(modreader,14,SEEK_CUR);
- s->flags =_mm_read_UBYTE(modreader);
- _mm_fseek(modreader,11,SEEK_CUR);
- _mm_read_UBYTES(id,4,modreader);
- if(((memcmp(id,"IS10",4))&&(memcmp(id,"IW10",4)))||
- (_mm_eof(modreader))) {
- free(nextwav);free(wh);
- _mm_errno=MMERR_LOADING_SAMPLEINFO;
- return 0;
- }
- nextwav[of.numsmp+u]=_mm_ftell(modreader);
- _mm_fseek(modreader,s->length,SEEK_CUR);
- }
- of.numsmp+=ih.numsmp;
- d++;
- }
- /* sanity check */
- if(!of.numsmp) {
- if(nextwav) free(nextwav);
- if(wh) free(wh);
- _mm_errno=MMERR_LOADING_SAMPLEINFO;
- return 0;
- }
- /* load samples */
- if(!AllocSamples()) {
- free(nextwav);free(wh);
- return 0;
- }
- if(!AllocLinear()) {
- free(nextwav);free(wh);
- return 0;
- }
- q=of.samples;
- s=wh;
- for(u=0;u<of.numsmp;u++,s++,q++) {
- q->samplename=DupStr(s->samplename,12,1);
- q->length =s->length;
- q->loopstart=s->loopstart;
- q->loopend =s->loopend;
- q->volume =s->volume;
- q->speed =s->samplerate;
- if(of.flags&UF_LINEAR)
- q->speed=speed_to_finetune(s->samplerate<<1,u);
- q->panning =s->pan;
- q->seekpos =nextwav[u];
- q->flags|=SF_SIGNED;
- if(s->flags&0x1) q->flags|=SF_LOOP;
- if(s->flags&0x2) q->flags|=SF_BIDI;
- if(s->flags&0x8) q->flags|=SF_OWNPAN;
- if(s->flags&0x4) {
- q->flags|=SF_16BITS;
- q->length >>=1;
- q->loopstart>>=1;
- q->loopend >>=1;
- }
- }
- d=of.instruments;
- s=wh;
- for(u=0;u<of.numins;u++,d++) {
- for(t=0;t<IMFNOTECNT;t++) {
- if(d->samplenumber[t]>=of.numsmp)
- d->samplenote[t]=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);
- } else
- d->samplenote[t]=t;
- }
- }
- free(wh);free(nextwav);
- return 1;
- }
- CHAR *IMF_LoadTitle(void)
- {
- CHAR s[31];
- _mm_fseek(modreader,0,SEEK_SET);
- if(!_mm_read_UBYTES(s,31,modreader)) return NULL;
- return(DupStr(s,31,1));
- }
- /*========== Loader information */
- MIKMODAPI MLOADER load_imf={
- NULL,
- "IMF",
- "IMF (Imago Orpheus)",
- IMF_Init,
- IMF_Test,
- IMF_Load,
- IMF_Cleanup,
- IMF_LoadTitle
- };
- /* ex:set ts=4: */