/* MikMod sound library (c) 1998, 1999 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: mplayer.c 937 2003-02-12 04:54:31Z slouken $ The Protracker Player Driver The protracker driver supports all base Protracker 3.x commands and features. ==============================================================================*/ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #ifdef SUNOS extern long int random(void); #endif #ifdef SRANDOM_IN_MATH_H #include #else #include #endif #include "mikmod_internals.h" /* Set forbid to 1 when you want to modify any of the pf->sngpos, pf->patpos etc variables and clear it when you're done. This prevents getting strange results due to intermediate interrupts. */ MODULE *pf=NULL; /* modfile being played */ static SWORD mp_channel; /* channel we're working on */ static MP_CONTROL *a; /* current AUDTMP we're working on */ static int explicitslides; static UWORD oldperiods[OCTAVE*2]={ 1712*16,1664*16,1616*16,1570*16,1524*16,1480*16, 1438*16,1396*16,1356*16,1318*16,1280*16,1244*16, 1208*16,1174*16,1140*16,1108*16,1076*16,1046*16, 1016*16, 988*16, 960*16, 932*16, 906*16, 880*16 }; static UBYTE VibratoTable[32]={ 0, 24, 49, 74, 97,120,141,161,180,197,212,224,235,244,250,253, 255,253,250,244,235,224,212,197,180,161,141,120, 97, 74, 49, 24 }; static UBYTE avibtab[128]={ 0, 1, 3, 4, 6, 7, 9,10,12,14,15,17,18,20,21,23, 24,25,27,28,30,31,32,34,35,36,38,39,40,41,42,44, 45,46,47,48,49,50,51,52,53,54,54,55,56,57,57,58, 59,59,60,60,61,61,62,62,62,63,63,63,63,63,63,63, 64,63,63,63,63,63,63,63,62,62,62,61,61,60,60,59, 59,58,57,57,56,55,54,54,53,52,51,50,49,48,47,46, 45,44,42,41,40,39,38,36,35,34,32,31,30,28,27,25, 24,23,21,20,18,17,15,14,12,10, 9, 7, 6, 4, 3, 1 }; /* Triton's linear periods to frequency translation table (for XM modules) */ static ULONG lintab[768]={ 535232,534749,534266,533784,533303,532822,532341,531861, 531381,530902,530423,529944,529466,528988,528511,528034, 527558,527082,526607,526131,525657,525183,524709,524236, 523763,523290,522818,522346,521875,521404,520934,520464, 519994,519525,519057,518588,518121,517653,517186,516720, 516253,515788,515322,514858,514393,513929,513465,513002, 512539,512077,511615,511154,510692,510232,509771,509312, 508852,508393,507934,507476,507018,506561,506104,505647, 505191,504735,504280,503825,503371,502917,502463,502010, 501557,501104,500652,500201,499749,499298,498848,498398, 497948,497499,497050,496602,496154,495706,495259,494812, 494366,493920,493474,493029,492585,492140,491696,491253, 490809,490367,489924,489482,489041,488600,488159,487718, 487278,486839,486400,485961,485522,485084,484647,484210, 483773,483336,482900,482465,482029,481595,481160,480726, 480292,479859,479426,478994,478562,478130,477699,477268, 476837,476407,475977,475548,475119,474690,474262,473834, 473407,472979,472553,472126,471701,471275,470850,470425, 470001,469577,469153,468730,468307,467884,467462,467041, 466619,466198,465778,465358,464938,464518,464099,463681, 463262,462844,462427,462010,461593,461177,460760,460345, 459930,459515,459100,458686,458272,457859,457446,457033, 456621,456209,455797,455386,454975,454565,454155,453745, 453336,452927,452518,452110,451702,451294,450887,450481, 450074,449668,449262,448857,448452,448048,447644,447240, 446836,446433,446030,445628,445226,444824,444423,444022, 443622,443221,442821,442422,442023,441624,441226,440828, 440430,440033,439636,439239,438843,438447,438051,437656, 437261,436867,436473,436079,435686,435293,434900,434508, 434116,433724,433333,432942,432551,432161,431771,431382, 430992,430604,430215,429827,429439,429052,428665,428278, 427892,427506,427120,426735,426350,425965,425581,425197, 424813,424430,424047,423665,423283,422901,422519,422138, 421757,421377,420997,420617,420237,419858,419479,419101, 418723,418345,417968,417591,417214,416838,416462,416086, 415711,415336,414961,414586,414212,413839,413465,413092, 412720,412347,411975,411604,411232,410862,410491,410121, 409751,409381,409012,408643,408274,407906,407538,407170, 406803,406436,406069,405703,405337,404971,404606,404241, 403876,403512,403148,402784,402421,402058,401695,401333, 400970,400609,400247,399886,399525,399165,398805,398445, 398086,397727,397368,397009,396651,396293,395936,395579, 395222,394865,394509,394153,393798,393442,393087,392733, 392378,392024,391671,391317,390964,390612,390259,389907, 389556,389204,388853,388502,388152,387802,387452,387102, 386753,386404,386056,385707,385359,385012,384664,384317, 383971,383624,383278,382932,382587,382242,381897,381552, 381208,380864,380521,380177,379834,379492,379149,378807, 378466,378124,377783,377442,377102,376762,376422,376082, 375743,375404,375065,374727,374389,374051,373714,373377, 373040,372703,372367,372031,371695,371360,371025,370690, 370356,370022,369688,369355,369021,368688,368356,368023, 367691,367360,367028,366697,366366,366036,365706,365376, 365046,364717,364388,364059,363731,363403,363075,362747, 362420,362093,361766,361440,361114,360788,360463,360137, 359813,359488,359164,358840,358516,358193,357869,357547, 357224,356902,356580,356258,355937,355616,355295,354974, 354654,354334,354014,353695,353376,353057,352739,352420, 352103,351785,351468,351150,350834,350517,350201,349885, 349569,349254,348939,348624,348310,347995,347682,347368, 347055,346741,346429,346116,345804,345492,345180,344869, 344558,344247,343936,343626,343316,343006,342697,342388, 342079,341770,341462,341154,340846,340539,340231,339924, 339618,339311,339005,338700,338394,338089,337784,337479, 337175,336870,336566,336263,335959,335656,335354,335051, 334749,334447,334145,333844,333542,333242,332941,332641, 332341,332041,331741,331442,331143,330844,330546,330247, 329950,329652,329355,329057,328761,328464,328168,327872, 327576,327280,326985,326690,326395,326101,325807,325513, 325219,324926,324633,324340,324047,323755,323463,323171, 322879,322588,322297,322006,321716,321426,321136,320846, 320557,320267,319978,319690,319401,319113,318825,318538, 318250,317963,317676,317390,317103,316817,316532,316246, 315961,315676,315391,315106,314822,314538,314254,313971, 313688,313405,313122,312839,312557,312275,311994,311712, 311431,311150,310869,310589,310309,310029,309749,309470, 309190,308911,308633,308354,308076,307798,307521,307243, 306966,306689,306412,306136,305860,305584,305308,305033, 304758,304483,304208,303934,303659,303385,303112,302838, 302565,302292,302019,301747,301475,301203,300931,300660, 300388,300117,299847,299576,299306,299036,298766,298497, 298227,297958,297689,297421,297153,296884,296617,296349, 296082,295815,295548,295281,295015,294749,294483,294217, 293952,293686,293421,293157,292892,292628,292364,292100, 291837,291574,291311,291048,290785,290523,290261,289999, 289737,289476,289215,288954,288693,288433,288173,287913, 287653,287393,287134,286875,286616,286358,286099,285841, 285583,285326,285068,284811,284554,284298,284041,283785, 283529,283273,283017,282762,282507,282252,281998,281743, 281489,281235,280981,280728,280475,280222,279969,279716, 279464,279212,278960,278708,278457,278206,277955,277704, 277453,277203,276953,276703,276453,276204,275955,275706, 275457,275209,274960,274712,274465,274217,273970,273722, 273476,273229,272982,272736,272490,272244,271999,271753, 271508,271263,271018,270774,270530,270286,270042,269798, 269555,269312,269069,268826,268583,268341,268099,267857 }; #define LOGFAC 2*16 static UWORD logtab[104]={ LOGFAC*907,LOGFAC*900,LOGFAC*894,LOGFAC*887, LOGFAC*881,LOGFAC*875,LOGFAC*868,LOGFAC*862, LOGFAC*856,LOGFAC*850,LOGFAC*844,LOGFAC*838, LOGFAC*832,LOGFAC*826,LOGFAC*820,LOGFAC*814, LOGFAC*808,LOGFAC*802,LOGFAC*796,LOGFAC*791, LOGFAC*785,LOGFAC*779,LOGFAC*774,LOGFAC*768, LOGFAC*762,LOGFAC*757,LOGFAC*752,LOGFAC*746, LOGFAC*741,LOGFAC*736,LOGFAC*730,LOGFAC*725, LOGFAC*720,LOGFAC*715,LOGFAC*709,LOGFAC*704, LOGFAC*699,LOGFAC*694,LOGFAC*689,LOGFAC*684, LOGFAC*678,LOGFAC*675,LOGFAC*670,LOGFAC*665, LOGFAC*660,LOGFAC*655,LOGFAC*651,LOGFAC*646, LOGFAC*640,LOGFAC*636,LOGFAC*632,LOGFAC*628, LOGFAC*623,LOGFAC*619,LOGFAC*614,LOGFAC*610, LOGFAC*604,LOGFAC*601,LOGFAC*597,LOGFAC*592, LOGFAC*588,LOGFAC*584,LOGFAC*580,LOGFAC*575, LOGFAC*570,LOGFAC*567,LOGFAC*563,LOGFAC*559, LOGFAC*555,LOGFAC*551,LOGFAC*547,LOGFAC*543, LOGFAC*538,LOGFAC*535,LOGFAC*532,LOGFAC*528, LOGFAC*524,LOGFAC*520,LOGFAC*516,LOGFAC*513, LOGFAC*508,LOGFAC*505,LOGFAC*502,LOGFAC*498, LOGFAC*494,LOGFAC*491,LOGFAC*487,LOGFAC*484, LOGFAC*480,LOGFAC*477,LOGFAC*474,LOGFAC*470, LOGFAC*467,LOGFAC*463,LOGFAC*460,LOGFAC*457, LOGFAC*453,LOGFAC*450,LOGFAC*447,LOGFAC*443, LOGFAC*440,LOGFAC*437,LOGFAC*434,LOGFAC*431 }; static SBYTE PanbrelloTable[256]={ 0, 2, 3, 5, 6, 8, 9, 11, 12, 14, 16, 17, 19, 20, 22, 23, 24, 26, 27, 29, 30, 32, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 59, 60, 60, 61, 61, 62, 62, 62, 63, 63, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 63, 63, 63, 62, 62, 62, 61, 61, 60, 60, 59, 59, 58, 57, 56, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 39, 38, 37, 36, 34, 33, 32, 30, 29, 27, 26, 24, 23, 22, 20, 19, 17, 16, 14, 12, 11, 9, 8, 6, 5, 3, 2, 0,- 2,- 3,- 5,- 6,- 8,- 9,-11,-12,-14,-16,-17,-19,-20,-22,-23, -24,-26,-27,-29,-30,-32,-33,-34,-36,-37,-38,-39,-41,-42,-43,-44, -45,-46,-47,-48,-49,-50,-51,-52,-53,-54,-55,-56,-56,-57,-58,-59, -59,-60,-60,-61,-61,-62,-62,-62,-63,-63,-63,-64,-64,-64,-64,-64, -64,-64,-64,-64,-64,-64,-63,-63,-63,-62,-62,-62,-61,-61,-60,-60, -59,-59,-58,-57,-56,-56,-55,-54,-53,-52,-51,-50,-49,-48,-47,-46, -45,-44,-43,-42,-41,-39,-38,-37,-36,-34,-33,-32,-30,-29,-27,-26, -24,-23,-22,-20,-19,-17,-16,-14,-12,-11,- 9,- 8,- 6,- 5,- 3,- 2 }; /* returns a random value between 0 and ceil-1, ceil must be a power of two */ static int getrandom(int ceil) { #ifdef HAVE_SRANDOM return random()&(ceil-1); #else return (int)((rand()*ceil)/(RAND_MAX+1.0)); #endif } /* New Note Action Scoring System : -------------------------------- 1) total-volume (fadevol, chanvol, volume) is the main scorer. 2) a looping sample is a bonus x2 3) a foreground channel is a bonus x4 4) an active envelope with keyoff is a handicap -x2 */ static int MP_FindEmptyChannel(void) { MP_VOICE *a; ULONG t,k,tvol,pp; for (t=0;tvoice[t].kick==KICK_ABSENT)||(pf->voice[t].kick==KICK_ENV))&& Voice_Stopped_internal(t)) return t; tvol=0xffffffUL;t=0;a=pf->voice; for (k=0;kkick==KICK_ABSENT)||(a->kick==KICK_ENV)) { pp=a->totalvol<<((a->s->flags&SF_LOOP)?1:0); if ((a->master)&&(a==a->master->slave)) pp<<=2; if (pp8000*7) return -1; return t; } static SWORD Interpolate(SWORD p,SWORD p1,SWORD p2,SWORD v1,SWORD v2) { if ((p1==p2)||(p==p1)) return v1; return v1+((SLONG)((p-p1)*(v2-v1))/(p2-p1)); } UWORD getlinearperiod(UWORD note,ULONG fine) { UWORD t; t=(20L*OCTAVE+2-note)*32L-(fine>>1); return t; } static UWORD getlogperiod(UWORD note,ULONG fine) { UWORD n,o; UWORD p1,p2; ULONG i; n=note%(2*OCTAVE); o=note/(2*OCTAVE); i=(n<<2)+(fine>>4); /* n*8 + fine/16 */ p1=logtab[i]; p2=logtab[i+1]; return (Interpolate(fine>>4,0,15,p1,p2)>>o); } static UWORD getoldperiod(UWORD note,ULONG speed) { UWORD n,o; if (!speed) { #ifdef MIKMOD_DEBUG fprintf(stderr,"\rmplayer: getoldperiod() called with note=%d, speed=0 !\n",note); #endif return 4242; /* <- prevent divide overflow.. (42 hehe) */ } n=note%(2*OCTAVE); o=note/(2*OCTAVE); return ((8363L*(ULONG)oldperiods[n])>>o)/speed; } static UWORD GetPeriod(UWORD note,ULONG speed) { if (pf->flags & UF_XMPERIODS) return (pf->flags&UF_LINEAR)?getlinearperiod(note,speed):getlogperiod(note,speed); return getoldperiod(note,speed); } static SWORD InterpolateEnv(SWORD p,ENVPT *a,ENVPT *b) { return (Interpolate(p,a->pos,b->pos,a->val,b->val)); } static SWORD DoPan(SWORD envpan,SWORD pan) { int newpan; newpan=pan+(((envpan-PAN_CENTER)*(128-abs(pan-PAN_CENTER)))/128); return (newpanPAN_RIGHT?PAN_RIGHT:newpan); } static void StartEnvelope(ENVPR *t,UBYTE flg,UBYTE pts,UBYTE susbeg,UBYTE susend,UBYTE beg,UBYTE end,ENVPT *p,UBYTE keyoff) { t->flg=flg; t->pts=pts; t->susbeg=susbeg; t->susend=susend; t->beg=beg; t->end=end; t->env=p; t->p=0; t->a=0; t->b=((t->flg&EF_SUSTAIN)&&(!(keyoff&KEY_OFF)))?0:1; /* Imago Orpheus sometimes stores an extra initial point in the envelope */ if ((t->pts>=2)&&(t->env[0].pos==t->env[1].pos)) { t->a++;t->b++; } if (t->b>=t->pts) t->b=t->pts-1; } /* This procedure processes all envelope types, include volume, pitch, and panning. Envelopes are defined by a set of points, each with a magnitude [relating either to volume, panning position, or pitch modifier] and a tick position. Envelopes work in the following manner: (a) Each tick the envelope is moved a point further in its progression. For an accurate progression, magnitudes between two envelope points are interpolated. (b) When progression reaches a defined point on the envelope, values are shifted to interpolate between this point and the next, and checks for loops or envelope end are done. Misc: Sustain loops are loops that are only active as long as the keyoff flag is clear. When a volume envelope terminates, so does the current fadeout. */ static SWORD ProcessEnvelope(ENVPR *t,SWORD v,UBYTE keyoff) { if (t->flg & EF_ON) { UBYTE a,b; /* actual points in the envelope */ UWORD p; /* the 'tick counter' - real point being played */ a=t->a; b=t->b; p=t->p; /* if sustain loop on one point (XM type), don't move and don't interpolate when the point is reached */ if ((t->flg & EF_SUSTAIN)&&(t->susbeg==t->susend)&& (!(keyoff&KEY_OFF))&&(p==t->env[t->susbeg].pos)) v=t->env[t->susbeg].val; else { /* compute the current envelope value between points a and b */ if (a==b) v=t->env[a].val; else v=InterpolateEnv(p,&t->env[a],&t->env[b]); p++; /* pointer reached point b? */ if (p>=t->env[b].pos) { a=b++; /* shift points a and b */ /* Check for loops, sustain loops, or end of envelope. */ if ((t->flg&EF_SUSTAIN)&&(!(keyoff&KEY_OFF))&&(b>t->susend)) { a=t->susbeg; b=(t->susbeg==t->susend)?a:a+1; p=t->env[a].pos; } else if ((t->flg & EF_LOOP)&&(b>t->end)) { a=t->beg; b=(t->beg==t->end)?a:a+1; p=t->env[a].pos; } else { if (b>=t->pts) { if ((t->flg & EF_VOLENV)&&(mp_channel!=-1)) { pf->voice[mp_channel].keyoff|=KEY_FADE; if (!v) pf->voice[mp_channel].fadevol=0; } b--;p--; } } } t->a=a; t->b=b; t->p=p; } } return v; } /* XM linear period to frequency conversion */ ULONG getfrequency(UBYTE flags,ULONG period) { if (flags & UF_LINEAR) return lintab[period%768]>>(period/768); else return (8363L*1712L)/(period?period:1); } /*========== Protracker effects */ static void DoEEffects(UBYTE dat) { UBYTE nib=dat&0xf; switch (dat>>4) { case 0x0: /* hardware filter toggle, not supported */ break; case 0x1: /* fineslide up */ if (a->period) if (!pf->vbtick) a->tmpperiod-=(nib<<2); break; case 0x2: /* fineslide dn */ if (a->period) if (!pf->vbtick) a->tmpperiod+=(nib<<2); break; case 0x3: /* glissando ctrl */ a->glissando=nib; break; case 0x4: /* set vibrato waveform */ a->wavecontrol&=0xf0; a->wavecontrol|=nib; break; case 0x5: /* set finetune */ if (a->period) { if (pf->flags&UF_XMPERIODS) a->speed=nib+128; else a->speed=finetune[nib]; a->tmpperiod=GetPeriod((UWORD)a->note<<1,a->speed); } break; case 0x6: /* set patternloop */ if (pf->vbtick) break; if (nib) { /* set reppos or repcnt ? */ /* set repcnt, so check if repcnt already is set, which means we are already looping */ if (a->pat_repcnt) a->pat_repcnt--; /* already looping, decrease counter */ else { #if 0 /* this would make walker.xm, shipped with Xsoundtracker, play correctly, but it's better to remain compatible with FT2 */ if ((!(pf->flags&UF_NOWRAP))||(a->pat_reppos!=POS_NONE)) #endif a->pat_repcnt=nib; /* not yet looping, so set repcnt */ } if (a->pat_repcnt) { /* jump to reppos if repcnt>0 */ if (a->pat_reppos==POS_NONE) a->pat_reppos=pf->patpos-1; if (a->pat_reppos==-1) { pf->pat_repcrazy=1; pf->patpos=0; } else pf->patpos=a->pat_reppos; } else a->pat_reppos=POS_NONE; } else a->pat_reppos=pf->patpos-1; /* set reppos - can be (-1) */ break; case 0x7: /* set tremolo waveform */ a->wavecontrol&=0x0f; a->wavecontrol|=nib<<4; break; case 0x8: /* set panning */ if (pf->panflag) { if (nib<=8) nib<<=4; else nib*=17; a->panning=pf->panning[mp_channel]=nib; } break; case 0x9: /* retrig note */ /* only retrigger if data nibble > 0 */ if (nib) { if (!a->retrig) { /* when retrig counter reaches 0, reset counter and restart the sample */ if (a->period) a->kick=KICK_NOTE; a->retrig=nib; } a->retrig--; /* countdown */ } break; case 0xa: /* fine volume slide up */ if (pf->vbtick) break; a->tmpvolume+=nib; if (a->tmpvolume>64) a->tmpvolume=64; break; case 0xb: /* fine volume slide dn */ if (pf->vbtick) break; a->tmpvolume-=nib; if (a->tmpvolume<0) a->tmpvolume=0; break; case 0xc: /* cut note */ /* When pf->vbtick reaches the cut-note value, turn the volume to zero ( Just like on the amiga) */ if (pf->vbtick>=nib) a->tmpvolume=0; /* just turn the volume down */ break; case 0xd: /* note delay */ /* delay the start of the sample until pf->vbtick==nib */ if (!pf->vbtick) a->notedelay=nib; else if (a->notedelay) a->notedelay--; break; case 0xe: /* pattern delay */ if (pf->vbtick) break; if (!pf->patdly2) pf->patdly=nib+1; /* only once, when vbtick=0 */ break; case 0xf: /* invert loop, not supported */ break; } } static void DoVibrato(void) { UBYTE q; UWORD temp=0; q=(a->vibpos>>2)&0x1f; switch (a->wavecontrol&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* ramp down */ q<<=3; if (a->vibpos<0) q=255-q; temp=q; break; case 2: /* square wave */ temp=255; break; case 3: /* random wave */ temp=getrandom(256); break; } temp*=a->vibdepth; temp>>=7;temp<<=2; if (a->vibpos>=0) a->period=a->tmpperiod+temp; else a->period=a->tmpperiod-temp; if (pf->vbtick) a->vibpos+=a->vibspd; } static void DoTremolo(void) { UBYTE q; UWORD temp=0; q=(a->trmpos>>2)&0x1f; switch ((a->wavecontrol>>4)&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* ramp down */ q<<=3; if (a->trmpos<0) q=255-q; temp=q; break; case 2: /* square wave */ temp=255; break; case 3: /* random wave */ temp=getrandom(256); break; } temp*=a->trmdepth; temp>>=6; if (a->trmpos>=0) { a->volume=a->tmpvolume+temp; if (a->volume>64) a->volume=64; } else { a->volume=a->tmpvolume-temp; if (a->volume<0) a->volume=0; } if (pf->vbtick) a->trmpos+=a->trmspd; } static void DoVolSlide(UBYTE dat) { if (!pf->vbtick) return; if (dat&0xf) { a->tmpvolume-=(dat&0x0f); if (a->tmpvolume<0) a->tmpvolume=0; } else { a->tmpvolume+=(dat>>4); if (a->tmpvolume>64) a->tmpvolume=64; } } static void DoToneSlide(void) { if (pf->vbtick) { int dist; /* We have to slide a->period towards a->wantedperiod, so compute the difference between those two values */ dist=a->period-a->wantedperiod; /* if they are equal or if portamentospeed is too big ...*/ if ((!dist)||a->portspeed>abs(dist)) /* ...make tmpperiod equal tperiod */ a->tmpperiod=a->period=a->wantedperiod; else if (dist>0) { a->tmpperiod-=a->portspeed; a->period-=a->portspeed; /* dist>0, slide up */ } else { a->tmpperiod+=a->portspeed; a->period+=a->portspeed; /* dist<0, slide down */ } } else a->tmpperiod=a->period; } static void DoArpeggio(UBYTE dat) { UBYTE note=a->note; if (dat) { switch (pf->vbtick%3) { case 1: note+=(dat>>4); break; case 2: note+=(dat&0xf); break; } a->period=GetPeriod((UWORD)note<<1,a->speed); a->ownper=1; } } /*========== Scream Tracker effects */ static void DoS3MVolSlide(UBYTE inf) { UBYTE lo, hi; explicitslides=1; if (inf) a->s3mvolslide=inf; else inf=a->s3mvolslide; lo=inf&0xf; hi=inf>>4; if (!lo) { if ((pf->vbtick)||(pf->flags&UF_S3MSLIDES)) a->tmpvolume+=hi; } else if (!hi) { if ((pf->vbtick)||(pf->flags&UF_S3MSLIDES)) a->tmpvolume-=lo; } else if (lo==0xf) { if (!pf->vbtick) a->tmpvolume+=(hi?hi:0xf); } else if (hi==0xf) { if (!pf->vbtick) a->tmpvolume-=(lo?lo:0xf); } else return; if (a->tmpvolume<0) a->tmpvolume=0; else if (a->tmpvolume>64) a->tmpvolume=64; } static void DoS3MSlideDn(UBYTE inf) { UBYTE hi,lo; if (inf) a->slidespeed=inf; else inf=a->slidespeed; hi=inf>>4; lo=inf&0xf; if (hi==0xf) { if (!pf->vbtick) a->tmpperiod+=(UWORD)lo<<2; } else if (hi==0xe) { if (!pf->vbtick) a->tmpperiod+=lo; } else { if (pf->vbtick) a->tmpperiod+=(UWORD)inf<<2; } } static void DoS3MSlideUp(UBYTE inf) { UBYTE hi,lo; if (inf) a->slidespeed=inf; else inf=a->slidespeed; hi=inf>>4; lo=inf&0xf; if (hi==0xf) { if (!pf->vbtick) a->tmpperiod-=(UWORD)lo<<2; } else if (hi==0xe) { if (!pf->vbtick) a->tmpperiod-=lo; } else { if (pf->vbtick) a->tmpperiod-=(UWORD)inf<<2; } } static void DoS3MTremor(UBYTE inf) { UBYTE on,off; if (inf) a->s3mtronof=inf; else { inf=a->s3mtronof; if (!inf) return; } if (!pf->vbtick) return; on=(inf>>4)+1; off=(inf&0xf)+1; a->s3mtremor%=(on+off); a->volume=(a->s3mtremortmpvolume:0; a->s3mtremor++; } static void DoS3MRetrig(UBYTE inf) { if (inf) { a->s3mrtgslide=inf>>4; a->s3mrtgspeed=inf&0xf; } /* only retrigger if low nibble > 0 */ if ( a->s3mrtgspeed>0) { if (!a->retrig) { /* when retrig counter reaches 0, reset counter and restart the sample */ if (a->kick!=KICK_NOTE) a->kick=KICK_KEYOFF; a->retrig=a->s3mrtgspeed; if ((pf->vbtick)||(pf->flags&UF_S3MSLIDES)) { switch (a->s3mrtgslide) { case 1: case 2: case 3: case 4: case 5: a->tmpvolume-=(1<<(a->s3mrtgslide-1)); break; case 6: a->tmpvolume=(2*a->tmpvolume)/3; break; case 7: a->tmpvolume>>=1; break; case 9: case 0xa: case 0xb: case 0xc: case 0xd: a->tmpvolume+=(1<<(a->s3mrtgslide-9)); break; case 0xe: a->tmpvolume=(3*a->tmpvolume)>>1; break; case 0xf: a->tmpvolume=a->tmpvolume<<1; break; } if (a->tmpvolume<0) a->tmpvolume=0; else if (a->tmpvolume>64) a->tmpvolume=64; } } a->retrig--; /* countdown */ } } static void DoS3MSpeed(UBYTE speed) { if (pf->vbtick||pf->patdly2) return; if (speed>128) speed-=128; if (speed) { pf->sngspd=speed; pf->vbtick=0; } } static void DoS3MTempo(UBYTE tempo) { if (pf->vbtick||pf->patdly2) return; pf->bpm=(tempo<32)?32:tempo; } static void DoS3MFineVibrato(void) { UBYTE q; UWORD temp=0; q=(a->vibpos>>2)&0x1f; switch (a->wavecontrol&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* ramp down */ q<<=3; if (a->vibpos<0) q=255-q; temp=q; break; case 2: /* square wave */ temp=255; break; case 3: /* random */ temp=getrandom(256); break; } temp*=a->vibdepth; temp>>=8; if (a->vibpos>=0) a->period=a->tmpperiod+temp; else a->period=a->tmpperiod-temp; a->vibpos+=a->vibspd; } static void DoS3MTremolo(void) { UBYTE q; UWORD temp=0; q=(a->trmpos>>2)&0x1f; switch ((a->wavecontrol>>4)&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* ramp down */ q<<=3; if (a->trmpos<0) q=255-q; temp=q; break; case 2: /* square wave */ temp=255; break; case 3: /* random */ temp=getrandom(256); break; } temp*=a->trmdepth; temp>>=7; if (a->trmpos>=0) { a->volume=a->tmpvolume+temp; if (a->volume>64) a->volume=64; } else { a->volume=a->tmpvolume-temp; if (a->volume<0) a->volume=0; } if (pf->vbtick) a->trmpos+=a->trmspd; } /*========== Fast Tracker effects */ static void DoXMVolSlide(UBYTE inf) { UBYTE lo,hi; explicitslides=2; if (inf) a->s3mvolslide=inf; else inf=a->s3mvolslide; if (!pf->vbtick) return; lo=inf&0xf; hi=inf>>4; if (!hi) { a->tmpvolume-=lo; if (a->tmpvolume<0) a->tmpvolume=0; } else { a->tmpvolume+=hi; if (a->tmpvolume>64) a->tmpvolume=64; } } static void DoXMGlobalSlide(UBYTE inf) { if (pf->vbtick) { if (inf) pf->globalslide=inf; else inf=pf->globalslide; if (inf & 0xf0) inf&=0xf0; pf->volume=pf->volume+((inf>>4)-(inf&0xf))*2; if (pf->volume<0) pf->volume=0; else if (pf->volume>128) pf->volume=128; } } static void DoXMPanSlide(UBYTE inf) { UBYTE lo,hi; SWORD pan; if (inf) a->pansspd=inf; else inf=a->pansspd; if (!pf->vbtick) return; lo=inf&0xf; hi=inf>>4; /* slide right has absolute priority */ if (hi) lo=0; pan=((a->panning==PAN_SURROUND)?PAN_CENTER:a->panning)+hi-lo; a->panning=(panPAN_RIGHT?PAN_RIGHT:pan); } static void DoXMExtraFineSlideUp(UBYTE inf) { if (!pf->vbtick) { a->period-=inf; a->tmpperiod-=inf; } } static void DoXMExtraFineSlideDown(UBYTE inf) { if (!pf->vbtick) { a->period+=inf; a->tmpperiod+=inf; } } /*========== Impulse Tracker effects */ static void DoITChanVolSlide(UBYTE inf) { UBYTE lo, hi; if (inf) a->chanvolslide=inf; inf=a->chanvolslide; lo=inf&0xf; hi=inf>>4; if (!hi) a->chanvol-=lo; else if (!lo) { a->chanvol+=hi; } else if (hi==0xf) { if (!pf->vbtick) a->chanvol-=lo; } else if (lo==0xf) { if (!pf->vbtick) a->chanvol+=hi; } if (a->chanvol<0) a->chanvol=0; if (a->chanvol>64) a->chanvol=64; } static void DoITGlobalSlide(UBYTE inf) { UBYTE lo,hi; if (inf) pf->globalslide=inf; inf=pf->globalslide; lo=inf&0xf; hi=inf>>4; if (!lo) { if (pf->vbtick) pf->volume+=hi; } else if (!hi) { if (pf->vbtick) pf->volume-=lo; } else if (lo==0xf) { if (!pf->vbtick) pf->volume+=hi; } else if (hi==0xf) { if (!pf->vbtick) pf->volume-=lo; } if (pf->volume<0) pf->volume=0; if (pf->volume>128) pf->volume=128; } static void DoITPanSlide(UBYTE inf) { UBYTE lo,hi; SWORD pan; if (inf) a->pansspd=inf; else inf=a->pansspd; lo=inf&0xf; hi=inf>>4; pan=(a->panning==PAN_SURROUND)?PAN_CENTER:a->panning; if (!hi) pan+=lo<<2; else if (!lo) { pan-=hi<<2; } else if (hi==0xf) { if (!pf->vbtick) pan+=lo<<2; } else if (lo==0xf) { if (!pf->vbtick) pan-=hi<<2; } a->panning=/*pf->panning[mp_channel]=*/ (panPAN_RIGHT?PAN_RIGHT:pan); } static void DoITTempo(UBYTE tempo) { SWORD temp=pf->bpm; if (pf->vbtick||pf->patdly2) return; if (tempo&0x10) temp+=(tempo&0x0f); else temp-=tempo; pf->bpm=(temp>255)?255:(temp<1?1:temp); } static void DoITVibrato(void) { UBYTE q; UWORD temp=0; q=(a->vibpos>>2)&0x1f; switch (a->wavecontrol&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* square wave */ temp=255; break; case 2: /* ramp down */ q<<=3; if (a->vibpos<0) q=255-q; temp=q; break; case 3: /* random */ temp=getrandom(256); break; } temp*=a->vibdepth; temp>>=8; temp<<=2; if (a->vibpos>=0) a->period=a->tmpperiod+temp; else a->period=a->tmpperiod-temp; a->vibpos+=a->vibspd; } static void DoITFineVibrato(void) { UBYTE q; UWORD temp=0; q=(a->vibpos>>2)&0x1f; switch (a->wavecontrol&3) { case 0: /* sine */ temp=VibratoTable[q]; break; case 1: /* square wave */ temp=255; break; case 2: /* ramp down */ q<<=3; if (a->vibpos<0) q=255-q; temp=q; break; case 3: /* random */ temp=getrandom(256); break; } temp*=a->vibdepth; temp>>=8; if (a->vibpos>=0) a->period=a->tmpperiod+temp; else a->period=a->tmpperiod-temp; a->vibpos+=a->vibspd; } static void DoITTremor(UBYTE inf) { UBYTE on,off; if (inf) a->s3mtronof=inf; else { inf=a->s3mtronof; if (!inf) return; } if (!pf->vbtick) return; on=(inf>>4); off=(inf&0xf); a->s3mtremor%=(on+off); a->volume=(a->s3mtremortmpvolume:0; a->s3mtremor++; } static void DoITPanbrello(void) { UBYTE q; SLONG temp=0; q=a->panbpos; switch (a->panbwave) { case 0: /* sine */ temp=PanbrelloTable[q]; break; case 1: /* square wave */ temp=(q<0x80)?64:0; break; case 2: /* ramp down */ q<<=3; temp=q; break; case 3: /* random */ if (a->panbpos>=a->panbspd) { a->panbpos=0; temp=getrandom(256); } } temp*=a->panbdepth; temp=(temp/8)+pf->panning[mp_channel]; a->panning=(tempPAN_RIGHT?PAN_RIGHT:temp); a->panbpos+=a->panbspd; } static void DoITToneSlide(void) { /* if we don't come from another note, ignore the slide and play the note as is */ if (!a->oldnote) return; if (pf->vbtick) { int dist; /* We have to slide a->period towards a->wantedperiod, compute the difference between those two values */ dist=a->period-a->wantedperiod; /* if they are equal or if portamentospeed is too big... */ if ((!dist)||((a->portspeed<<2)>abs(dist))) /* ... make tmpperiod equal tperiod */ a->tmpperiod=a->period=a->wantedperiod; else if (dist>0) { a->tmpperiod-=a->portspeed<<2; a->period-=a->portspeed<<2; /* dist>0 slide up */ } else { a->tmpperiod+=a->portspeed<<2; a->period+=a->portspeed<<2; /* dist<0 slide down */ } } else a->tmpperiod=a->period; } static void DoNNAEffects(UBYTE dat); /* Impulse/Scream Tracker Sxx effects. All Sxx effects share the same memory space. */ static void DoSSEffects(UBYTE dat) { UBYTE inf,c; inf=dat&0xf; c=dat>>4; if (!dat) { c=a->sseffect; inf=a->ssdata; } else { a->sseffect=c; a->ssdata=inf; } switch (c) { case SS_GLISSANDO: /* S1x set glissando voice */ DoEEffects(0x30|inf); break; case SS_FINETUNE: /* S2x set finetune */ DoEEffects(0x50|inf); break; case SS_VIBWAVE: /* S3x set vibrato waveform */ DoEEffects(0x40|inf); break; case SS_TREMWAVE: /* S4x set tremolo waveform */ DoEEffects(0x70|inf); break; case SS_PANWAVE: /* S5x panbrello */ a->panbwave=inf; break; case SS_FRAMEDELAY: /* S6x delay x number of frames (patdly) */ DoEEffects(0xe0|inf); break; case SS_S7EFFECTS: /* S7x instrument / NNA commands */ DoNNAEffects(inf); break; case SS_PANNING: /* S8x set panning position */ DoEEffects(0x80 | inf); break; case SS_SURROUND: /* S9x set surround Sound */ if (pf->panflag) a->panning=pf->panning[mp_channel]=PAN_SURROUND; break; case SS_HIOFFSET: /* SAy set high order sample offset yxx00h */ if (!pf->vbtick) { a->hioffset=inf<<16; a->start=a->hioffset|a->soffset; if ((a->s)&&(a->start>a->s->length)) a->start=a->s->flags&(SF_LOOP|SF_BIDI)?a->s->loopstart:a->s->length; } break; case SS_PATLOOP: /* SBx pattern loop */ DoEEffects(0x60|inf); break; case SS_NOTECUT: /* SCx notecut */ DoEEffects(0xC0|inf); break; case SS_NOTEDELAY: /* SDx notedelay */ DoEEffects(0xD0|inf); break; case SS_PATDELAY: /* SEx patterndelay */ DoEEffects(0xE0|inf); break; } } /* Impulse Tracker Volume/Pan Column effects. All volume/pan column effects share the same memory space. */ static void DoVolEffects(UBYTE c) { UBYTE inf=UniGetByte(); if ((!c)&&(!inf)) { c=a->voleffect; inf=a->voldata; } else { a->voleffect=c; a->voldata=inf; } if (c) switch (c) { case VOL_VOLUME: if (pf->vbtick) break; if (inf>64) inf=64; a->tmpvolume=inf; break; case VOL_PANNING: if (pf->panflag) a->panning=/*pf->panning[mp_channel]=*/inf; break; case VOL_VOLSLIDE: DoS3MVolSlide(inf); break; case VOL_PITCHSLIDEDN: if (a->period) DoS3MSlideDn(inf); break; case VOL_PITCHSLIDEUP: if (a->period) DoS3MSlideUp(inf); break; case VOL_PORTAMENTO: if (inf) a->slidespeed=inf; if (a->period) { if ((!pf->vbtick)||(a->newsamp)){ a->kick=KICK_NOTE; a->start=-1; } else a->kick=(a->kick==KICK_NOTE)?KICK_ENV:KICK_ABSENT; DoITToneSlide(); a->ownper=1; } break; case VOL_VIBRATO: if (!pf->vbtick) { if (inf&0x0f) a->vibdepth=inf&0xf; if (inf&0xf0) a->vibspd=(inf&0xf0)>>2; } if (a->period) { DoITVibrato(); a->ownper=1; } break; } } /*========== UltraTracker effects */ static void DoULTSampleOffset(void) { UWORD offset=UniGetWord(); if (offset) a->ultoffset=offset; a->start=a->ultoffset<<2; if ((a->s)&&(a->start>a->s->length)) a->start=a->s->flags&(SF_LOOP|SF_BIDI)?a->s->loopstart:a->s->length; } /*========== OctaMED effects */ static void DoMEDSpeed(void) { UWORD speed=UniGetWord(); pf->bpm=speed; } /*========== General player functions */ static void pt_playeffects(void) { UBYTE dat,c; while((c=UniGetByte())) { int oldsliding=a->sliding; a->sliding=0; switch (c) { case UNI_NOTE: case UNI_INSTRUMENT: a->sliding=oldsliding; UniSkipOpcode(c); break; case UNI_PTEFFECT0: dat=UniGetByte(); if (!pf->vbtick) { if ((!dat)&&(pf->flags&UF_ARPMEM)) dat=a->arpmem; a->arpmem=dat; } if (a->period) DoArpeggio(a->arpmem); break; case UNI_PTEFFECT1: dat=UniGetByte(); if ((!pf->vbtick)&&(dat)) a->slidespeed=(UWORD)dat<<2; if (a->period) if (pf->vbtick) a->tmpperiod-=a->slidespeed; break; case UNI_PTEFFECT2: dat=UniGetByte(); if ((!pf->vbtick)&&(dat)) a->slidespeed=(UWORD)dat<<2; if (a->period) if (pf->vbtick) a->tmpperiod+=a->slidespeed; break; case UNI_PTEFFECT3: dat=UniGetByte(); if ((!pf->vbtick)&&(dat)) a->portspeed=(UWORD)dat<<2; if (a->period) { if (!a->fadevol) a->kick=(a->kick==KICK_NOTE)?KICK_NOTE:KICK_KEYOFF; else a->kick=(a->kick==KICK_NOTE)?KICK_ENV:KICK_ABSENT; DoToneSlide(); a->ownper=1; } break; case UNI_PTEFFECT4: case UNI_XMEFFECT4: dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->vibdepth=dat&0xf; if (dat&0xf0) a->vibspd=(dat&0xf0)>>2; } else if (a->period) { DoVibrato(); a->ownper=1; } break; case UNI_PTEFFECT5: dat=UniGetByte(); if (a->period) { if (!a->fadevol) a->kick=(a->kick==KICK_NOTE)?KICK_NOTE:KICK_KEYOFF; else a->kick=(a->kick==KICK_NOTE)?KICK_ENV:KICK_ABSENT; DoToneSlide(); a->ownper=1; } DoVolSlide(dat); break; case UNI_PTEFFECT6: dat=UniGetByte(); if ((a->period)&&(pf->vbtick)) { DoVibrato(); a->ownper=1; } DoVolSlide(dat); break; case UNI_PTEFFECT7: dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->trmdepth=dat&0xf; if (dat&0xf0) a->trmspd=(dat&0xf0)>>2; } if (a->period) { DoTremolo(); a->ownvol=1; } break; case UNI_PTEFFECT8: dat=UniGetByte(); if (pf->panflag) a->panning=pf->panning[mp_channel]=dat; break; case UNI_PTEFFECT9: dat=UniGetByte(); if (!pf->vbtick) { if (dat) a->soffset=(UWORD)dat<<8; a->start=a->hioffset|a->soffset; if ((a->s)&&(a->start>a->s->length)) a->start=a->s->flags&(SF_LOOP|SF_BIDI)?a->s->loopstart:a->s->length; } break; case UNI_PTEFFECTA: DoVolSlide(UniGetByte()); break; case UNI_PTEFFECTB: dat=UniGetByte(); if ((pf->vbtick)||(pf->patdly2)) break; /* Vincent Voois uses a nasty trick in "Universal Bolero" */ if (dat==pf->sngpos && pf->patbrk==pf->patpos) break; if ((!pf->loop)&&(!pf->patbrk)&&((datsngpos)|| ((pf->sngpos==pf->numpos-1)&&(!pf->patbrk))|| ((dat==pf->sngpos)&&(pf->flags&UF_NOWRAP)))) { /* if we don't loop, better not to skip the end of the pattern, after all... so: pf->patbrk=0; */ pf->posjmp=3; } else { /* if we were fading, adjust... */ if (pf->sngpos==(pf->numpos-1)) pf->volume=pf->initvolume>128?128:pf->initvolume; pf->sngpos=dat; pf->posjmp=2; pf->patpos=0; } break; case UNI_PTEFFECTC: dat=UniGetByte(); if (pf->vbtick) break; if (dat==(UBYTE)-1) a->anote=dat=0; /* note cut */ else if (dat>64) dat=64; a->tmpvolume=dat; break; case UNI_PTEFFECTD: dat=UniGetByte(); if ((pf->vbtick)||(pf->patdly2)) break; if ((pf->positions[pf->sngpos]!=255)&& (dat>pf->pattrows[pf->positions[pf->sngpos]])) dat=pf->pattrows[pf->positions[pf->sngpos]]; pf->patbrk=dat; if (!pf->posjmp) { /* don't ask me to explain this code - it makes backwards.s3m and children.xm (heretic's version) play correctly, among others. Take that for granted, or write the page of comments yourself... you might need some aspirin - Miod */ if ((pf->sngpos==pf->numpos-1)&&(dat)&&((pf->loop)|| (pf->positions[pf->sngpos]==(pf->numpat-1) && !(pf->flags&UF_NOWRAP)))) { pf->sngpos=0; pf->posjmp=2; } else pf->posjmp=3; } break; case UNI_PTEFFECTE: DoEEffects(UniGetByte()); break; case UNI_PTEFFECTF: dat=UniGetByte(); if (pf->vbtick||pf->patdly2) break; if (pf->extspd&&(dat>=0x20)) pf->bpm=dat; else if (dat) { pf->sngspd=(dat>32)?32:dat; pf->vbtick=0; } break; case UNI_S3MEFFECTA: DoS3MSpeed(UniGetByte()); break; case UNI_S3MEFFECTD: DoS3MVolSlide(UniGetByte()); break; case UNI_S3MEFFECTE: dat=UniGetByte(); if (a->period) DoS3MSlideDn(dat); break; case UNI_S3MEFFECTF: dat=UniGetByte(); if (a->period) DoS3MSlideUp(dat); break; case UNI_S3MEFFECTI: DoS3MTremor(UniGetByte()); a->ownvol=1; break; case UNI_S3MEFFECTQ: dat=UniGetByte(); if (a->period) DoS3MRetrig(dat); break; case UNI_S3MEFFECTR: dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->trmdepth=dat&0xf; if (dat&0xf0) a->trmspd=(dat&0xf0)>>2; } DoS3MTremolo(); a->ownvol=1; break; case UNI_S3MEFFECTT: DoS3MTempo(UniGetByte()); break; case UNI_S3MEFFECTU: dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->vibdepth=dat&0xf; if (dat&0xf0) a->vibspd=(dat&0xf0)>>2; } else if (a->period) { DoS3MFineVibrato(); a->ownper=1; } break; case UNI_KEYOFF: a->keyoff|=KEY_OFF; if ((!(a->volflg&EF_ON))||(a->volflg&EF_LOOP)) a->keyoff=KEY_KILL; break; case UNI_KEYFADE: dat=UniGetByte(); if ((pf->vbtick>=dat)||(pf->vbtick==pf->sngspd-1)) { a->keyoff=KEY_KILL; if (!(a->volflg&EF_ON)) a->fadevol=0; } break; case UNI_VOLEFFECTS: DoVolEffects(UniGetByte()); break; case UNI_XMEFFECTA: DoXMVolSlide(UniGetByte()); break; case UNI_XMEFFECTE1: /* XM fineslide up */ dat=UniGetByte(); if (!pf->vbtick) { if (dat) a->fportupspd=dat; if (a->period) a->tmpperiod-=(a->fportupspd<<2); } break; case UNI_XMEFFECTE2: /* XM fineslide dn */ dat=UniGetByte(); if (!pf->vbtick) { if (dat) a->fportdnspd=dat; if (a->period) a->tmpperiod+=(a->fportdnspd<<2); } break; case UNI_XMEFFECTEA: /* fine volume slide up */ dat=UniGetByte(); if (!pf->vbtick) if (dat) a->fslideupspd=dat; a->tmpvolume+=a->fslideupspd; if (a->tmpvolume>64) a->tmpvolume=64; break; case UNI_XMEFFECTEB: /* fine volume slide dn */ dat=UniGetByte(); if (!pf->vbtick) if (dat) a->fslidednspd=dat; a->tmpvolume-=a->fslidednspd; if (a->tmpvolume<0) a->tmpvolume=0; break; case UNI_XMEFFECTG: pf->volume=UniGetByte()<<1; if (pf->volume>128) pf->volume=128; break; case UNI_XMEFFECTH: DoXMGlobalSlide(UniGetByte()); break; case UNI_XMEFFECTL: dat=UniGetByte(); if ((!pf->vbtick)&&(a->i)) { UWORD points; INSTRUMENT *i=a->i; MP_VOICE *aout; if ((aout=a->slave)) { points=i->volenv[i->volpts-1].pos; aout->venv.p=aout->venv.env[(dat>points)?points:dat].pos; points=i->panenv[i->panpts-1].pos; aout->penv.p=aout->penv.env[(dat>points)?points:dat].pos; } } break; case UNI_XMEFFECTP: dat=UniGetByte(); if (pf->panflag) DoXMPanSlide(dat); break; case UNI_XMEFFECTX1: dat=UniGetByte(); if (dat) a->ffportupspd=dat; else dat=a->ffportupspd; if (a->period) { DoXMExtraFineSlideUp(dat); a->ownper=1; } break; case UNI_XMEFFECTX2: dat=UniGetByte(); if (dat) a->ffportdnspd=dat; else dat=a->ffportdnspd; if (a->period) { DoXMExtraFineSlideDown(dat); a->ownper=1; } break; case UNI_ITEFFECTG: dat=UniGetByte(); if (dat) { a->portspeed=dat; } if (a->period) { if ((!pf->vbtick)&&(a->newsamp)){ a->kick=KICK_NOTE; a->start=-1; } else a->kick=(a->kick==KICK_NOTE)?KICK_ENV:KICK_ABSENT; DoITToneSlide(); a->ownper=1; } break; case UNI_ITEFFECTH: /* IT vibrato */ dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->vibdepth=dat&0xf; if (dat&0xf0) a->vibspd=(dat&0xf0)>>2; } if (a->period) { DoITVibrato(); a->ownper=1; } break; case UNI_ITEFFECTI: /* IT tremor */ DoITTremor(UniGetByte()); a->ownvol=1; break; case UNI_ITEFFECTM: a->chanvol=UniGetByte(); if (a->chanvol>64) a->chanvol=64; else if (a->chanvol<0) a->chanvol=0; break; case UNI_ITEFFECTN: /* slide / fineslide channel volume */ DoITChanVolSlide(UniGetByte()); break; case UNI_ITEFFECTP: /* slide / fineslide channel panning */ dat=UniGetByte(); if (pf->panflag) DoITPanSlide(dat); break; case UNI_ITEFFECTT: /* slide / fineslide tempo */ DoITTempo(UniGetByte()); break; case UNI_ITEFFECTU: /* fine vibrato */ dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->vibdepth=dat&0xf; if (dat&0xf0) a->vibspd=(dat&0xf0)>>2; } if (a->period) { DoITFineVibrato(); a->ownper=1; } break; case UNI_ITEFFECTW: /* slide / fineslide global volume */ DoITGlobalSlide(UniGetByte()); break; case UNI_ITEFFECTY: /* panbrello */ dat=UniGetByte(); if (!pf->vbtick) { if (dat&0x0f) a->panbdepth=(dat&0xf); if (dat&0xf0) a->panbspd=(dat&0xf0)>>4; } if (pf->panflag) DoITPanbrello(); break; case UNI_ITEFFECTS0: DoSSEffects(UniGetByte()); break; case UNI_ITEFFECTZ: /* FIXME not yet implemented */ UniSkipOpcode(UNI_ITEFFECTZ); break; case UNI_ULTEFFECT9: DoULTSampleOffset(); break; case UNI_MEDSPEED: DoMEDSpeed(); break; case UNI_MEDEFFECTF1: DoEEffects(0x90|(pf->sngspd/2)); break; case UNI_MEDEFFECTF2: DoEEffects(0xd0|(pf->sngspd/2)); break; case UNI_MEDEFFECTF3: DoEEffects(0x90|(pf->sngspd/3)); break; case UNI_XMEFFECTZ: Player_SetSynchroValue(UniGetByte()); break; default: a->sliding=oldsliding; UniSkipOpcode(c); break; } } } static void DoNNAEffects(UBYTE dat) { int t; MP_VOICE *aout; dat&=0xf; aout=(a->slave)?a->slave:NULL; switch (dat) { case 0x0: /* past note cut */ for (t=0;tvoice[t].master==a) pf->voice[t].fadevol=0; break; case 0x1: /* past note off */ for (t=0;tvoice[t].master==a) { pf->voice[t].keyoff|=KEY_OFF; if ((!(pf->voice[t].venv.flg & EF_ON))|| (pf->voice[t].venv.flg & EF_LOOP)) pf->voice[t].keyoff=KEY_KILL; } break; case 0x2: /* past note fade */ for (t=0;tvoice[t].master==a) pf->voice[t].keyoff|=KEY_FADE; break; case 0x3: /* set NNA note cut */ a->nna=(a->nna&~NNA_MASK)|NNA_CUT; break; case 0x4: /* set NNA note continue */ a->nna=(a->nna&~NNA_MASK)|NNA_CONTINUE; break; case 0x5: /* set NNA note off */ a->nna=(a->nna&~NNA_MASK)|NNA_OFF; break; case 0x6: /* set NNA note fade */ a->nna=(a->nna&~NNA_MASK)|NNA_FADE; break; case 0x7: /* disable volume envelope */ if (aout) aout->volflg&=~EF_ON; break; case 0x8: /* enable volume envelope */ if (aout) aout->volflg|=EF_ON; break; case 0x9: /* disable panning envelope */ if (aout) aout->panflg&=~EF_ON; break; case 0xa: /* enable panning envelope */ if (aout) aout->panflg|=EF_ON; break; case 0xb: /* disable pitch envelope */ if (aout) aout->pitflg&=~EF_ON; break; case 0xc: /* enable pitch envelope */ if (aout) aout->pitflg|=EF_ON; break; } } void pt_UpdateVoices(int max_volume) { SWORD envpan,envvol,envpit; UWORD playperiod; SLONG vibval,vibdpt; ULONG tmpvol; MP_VOICE *aout; INSTRUMENT *i; SAMPLE *s; pf->totalchn=pf->realchn=0; for (mp_channel=0;mp_channelvoice[mp_channel]; i=aout->i; s=aout->s; if ((!s)||(!s->length)) continue; if (aout->period<40) aout->period=40; else if (aout->period>50000) aout->period=50000; if ((aout->kick==KICK_NOTE)||(aout->kick==KICK_KEYOFF)) { Voice_Play_internal(mp_channel,s,(aout->start==-1)?((s->flags&SF_UST_LOOP)?s->loopstart:0):aout->start); aout->fadevol=32768; aout->aswppos=0; } if (i && ((aout->kick==KICK_NOTE)||(aout->kick==KICK_ENV))) { StartEnvelope(&aout->venv,aout->volflg,i->volpts,i->volsusbeg, i->volsusend,i->volbeg,i->volend,i->volenv,aout->keyoff); StartEnvelope(&aout->penv,aout->panflg,i->panpts,i->pansusbeg, i->pansusend,i->panbeg,i->panend,i->panenv,aout->keyoff); StartEnvelope(&aout->cenv,aout->pitflg,i->pitpts,i->pitsusbeg, i->pitsusend,i->pitbeg,i->pitend,i->pitenv,aout->keyoff); if (aout->cenv.flg&EF_ON) aout->masterperiod=GetPeriod((UWORD)aout->note<<1,aout->master->speed); } aout->kick=KICK_ABSENT; envvol=(!(aout->volflg & EF_ON))?256: ProcessEnvelope(&aout->venv,256,aout->keyoff); envpan=(!(aout->panflg & EF_ON))?PAN_CENTER: ProcessEnvelope(&aout->penv,PAN_CENTER,aout->keyoff); envpit=(!(aout->pitflg & EF_ON))?32: ProcessEnvelope(&aout->cenv,32,aout->keyoff); tmpvol=aout->fadevol; /* max 32768 */ tmpvol*=aout->chanvol; /* * max 64 */ tmpvol*=aout->volume; /* * max 256 */ tmpvol/=16384L; /* tmpvol is max 32768 */ aout->totalvol=tmpvol>>2; /* totalvolume used to determine samplevolume */ tmpvol*=envvol; /* * max 256 */ tmpvol*=pf->volume; /* * max 128 */ tmpvol/=4194304UL; tmpvol*=pf->initvolume; /* * max 128 */ tmpvol/=128; /* fade out */ if (pf->sngpos>=pf->numpos) tmpvol=0; else tmpvol=(tmpvol*max_volume)/128; if ((aout->masterchn!=-1)&& pf->control[aout->masterchn].muted) Voice_SetVolume_internal(mp_channel,0); else { Voice_SetVolume_internal(mp_channel,tmpvol); if ((tmpvol)&&(aout->master)&&(aout->master->slave==aout)) pf->realchn++; pf->totalchn++; } if (aout->panning==PAN_SURROUND) Voice_SetPanning_internal(mp_channel,PAN_SURROUND); else if ((pf->panflag)&&(aout->penv.flg & EF_ON)) Voice_SetPanning_internal(mp_channel,DoPan(envpan,aout->panning)); else Voice_SetPanning_internal(mp_channel,aout->panning); if (aout->period && s->vibdepth) switch (s->vibtype) { case 0: vibval=avibtab[s->avibpos&127]; if (s->avibpos & 0x80) vibval=-vibval; break; case 1: vibval=64; if (s->avibpos & 0x80) vibval=-vibval; break; case 2: vibval=63-(((s->avibpos+128)&255)>>1); break; default: vibval=(((s->avibpos+128)&255)>>1)-64; break; } else vibval=0; if (s->vibflags & AV_IT) { if ((aout->aswppos>>8)vibdepth) { aout->aswppos += s->vibsweep; vibdpt=aout->aswppos; } else vibdpt=s->vibdepth<<8; vibval=(vibval*vibdpt)>>16; if (aout->mflag) { if (!(pf->flags&UF_LINEAR)) vibval>>=1; aout->period-=vibval; } } else { /* do XM style auto-vibrato */ if (!(aout->keyoff & KEY_OFF)) { if (aout->aswpposvibsweep) { vibdpt=(aout->aswppos*s->vibdepth)/s->vibsweep; aout->aswppos++; } else vibdpt=s->vibdepth; } else { /* keyoff -> depth becomes 0 if final depth wasn't reached or stays at final level if depth WAS reached */ if (aout->aswppos>=s->vibsweep) vibdpt=s->vibdepth; else vibdpt=0; } vibval=(vibval*vibdpt)>>8; aout->period-=vibval; } /* update vibrato position */ s->avibpos=(s->avibpos+s->vibrate)&0xff; /* process pitch envelope */ playperiod=aout->period; if ((aout->pitflg&EF_ON)&&(envpit!=32)) { long p1; envpit-=32; if ((aout->note<<1)+envpit<=0) envpit=-(aout->note<<1); p1=GetPeriod(((UWORD)aout->note<<1)+envpit,aout->master->speed)-aout->masterperiod; if (p1>0) { if ((UWORD)(playperiod+p1)<=playperiod) { p1=0; aout->keyoff|=KEY_OFF; } } else if (p1<0) { if ((UWORD)(playperiod+p1)>=playperiod) { p1=0; aout->keyoff|=KEY_OFF; } } playperiod+=p1; } if (!aout->fadevol) { /* check for a dead note (fadevol=0) */ Voice_Stop_internal(mp_channel); pf->totalchn--; if ((tmpvol)&&(aout->master)&&(aout->master->slave==aout)) pf->realchn--; } else { Voice_SetFrequency_internal(mp_channel, getfrequency(pf->flags,playperiod)); /* if keyfade, start substracting fadeoutspeed from fadevol: */ if ((i)&&(aout->keyoff&KEY_FADE)) { if (aout->fadevol>=i->volfade) aout->fadevol-=i->volfade; else aout->fadevol=0; } } md_bpm=pf->bpm+pf->relspd; if (md_bpm<32) md_bpm=32; else if (md_bpm>255) md_bpm=255; } } /* Handles new notes or instruments */ void pt_Notes(void) { UBYTE c,inst; int tr,funky; /* funky is set to indicate note or instrument change */ for (mp_channel=0;mp_channelnumchn;mp_channel++) { a=&pf->control[mp_channel]; if (pf->sngpos>=pf->numpos) { tr=pf->numtrk; pf->numrow=0; } else { tr=pf->patterns[(pf->positions[pf->sngpos]*pf->numchn)+mp_channel]; pf->numrow=pf->pattrows[pf->positions[pf->sngpos]]; } a->row=(trnumtrk)?UniFindRow(pf->tracks[tr],pf->patpos):NULL; a->newsamp=0; if (!pf->vbtick) a->notedelay=0; if (!a->row) continue; UniSetRow(a->row); funky=0; while((c=UniGetByte())) switch (c) { case UNI_NOTE: funky|=1; a->oldnote=a->anote,a->anote=UniGetByte(); a->kick =KICK_NOTE; a->start=-1; a->sliding=0; /* retrig tremolo and vibrato waves ? */ if (!(a->wavecontrol & 0x80)) a->trmpos=0; if (!(a->wavecontrol & 0x08)) a->vibpos=0; if (!a->panbwave) a->panbpos=0; break; case UNI_INSTRUMENT: inst=UniGetByte(); if (inst>=pf->numins) break; /* safety valve */ funky|=2; a->i=(pf->flags & UF_INST)?&pf->instruments[inst]:NULL; a->retrig=0; a->s3mtremor=0; a->sample=inst; break; default: UniSkipOpcode(c); break; } if (funky) { INSTRUMENT *i; SAMPLE *s; i=a->i; if (i) { if (i->samplenumber[a->anote] >= pf->numsmp) continue; s=&pf->samples[i->samplenumber[a->anote]]; a->note=i->samplenote[a->anote]; } else { a->note=a->anote; s=&pf->samples[a->sample]; } if (a->s!=s) { a->s=s; a->newsamp=a->period; } /* channel or instrument determined panning ? */ a->panning=pf->panning[mp_channel]; if (s->flags & SF_OWNPAN) a->panning=s->panning; else if ((i)&&(i->flags & IF_OWNPAN)) a->panning=i->panning; a->handle=s->handle; a->speed=s->speed; if (i) { if ((pf->panflag)&&(i->flags & IF_PITCHPAN) &&(a->panning!=PAN_SURROUND)){ a->panning+=((a->anote-i->pitpancenter)*i->pitpansep)/8; if (a->panningpanning=PAN_LEFT; else if (a->panning>PAN_RIGHT) a->panning=PAN_RIGHT; } a->pitflg=i->pitflg; a->volflg=i->volflg; a->panflg=i->panflg; a->nna=i->nnatype; a->dca=i->dca; a->dct=i->dct; } else { a->pitflg=0; a->volflg=0; a->panflg=0; a->nna=0; a->dca=0; a->dct=0; } if (funky&2) /* instrument change */ { /* IT random volume variations: 0:8 bit fixed, and one bit for sign. */ a->volume=a->tmpvolume=s->volume; if ((s)&&(i)) { if (i->rvolvar) { a->volume=a->tmpvolume=s->volume+ ((s->volume*((SLONG)i->rvolvar*(SLONG)getrandom(512) ))/25600); if (a->volume<0) a->volume=a->tmpvolume=0; else if (a->volume>64) a->volume=a->tmpvolume=64; } if ((pf->panflag)&&(a->panning!=PAN_SURROUND)) { a->panning+=((a->panning*((SLONG)i->rpanvar* (SLONG)getrandom(512)))/25600); if (a->panningpanning=PAN_LEFT; else if (a->panning>PAN_RIGHT) a->panning=PAN_RIGHT; } } } a->wantedperiod=a->tmpperiod=GetPeriod((UWORD)a->note<<1,a->speed); a->keyoff=KEY_KICK; } } } /* Handles effects */ void pt_EffectsPass1(void) { MP_VOICE *aout; for (mp_channel=0;mp_channelnumchn;mp_channel++) { a=&pf->control[mp_channel]; if ((aout=a->slave)) { a->fadevol=aout->fadevol; a->period=aout->period; if (a->kick==KICK_KEYOFF) a->keyoff=aout->keyoff; } if (!a->row) continue; UniSetRow(a->row); a->ownper=a->ownvol=0; explicitslides=0; pt_playeffects(); /* continue volume slide if necessary for XM and IT */ if (pf->flags&UF_BGSLIDES) { if (!explicitslides) switch (a->sliding) { case 1: DoS3MVolSlide(0); break; case 2: DoXMVolSlide(0); break; } else if (a->tmpvolume) a->sliding=explicitslides; } if (!a->ownper) a->period=a->tmpperiod; if (!a->ownvol) a->volume=a->tmpvolume; if (a->s) { if (a->i) a->outvolume=(a->volume*a->s->globvol*a->i->globvol)>>10; else a->outvolume=(a->volume*a->s->globvol)>>4; if (a->outvolume>256)a->volume=256; else if (a->outvolume<0) a->outvolume=0; } } } /* NNA management */ void pt_NNA(void) { for (mp_channel=0;mp_channelnumchn;mp_channel++) { a=&pf->control[mp_channel]; if (a->kick==KICK_NOTE) { BOOL k=0; if (a->slave) { MP_VOICE *aout; aout=a->slave; if (aout->nna & NNA_MASK) { /* Make sure the old MP_VOICE channel knows it has no master now ! */ a->slave=NULL; /* assume the channel is taken by NNA */ aout->mflag=0; switch (aout->nna) { case NNA_CONTINUE: /* continue note, do nothing */ break; case NNA_OFF: /* note off */ aout->keyoff|=KEY_OFF; if ((!(aout->volflg & EF_ON))||(aout->volflg & EF_LOOP)) aout->keyoff=KEY_KILL; break; case NNA_FADE: aout->keyoff |= KEY_FADE; break; } } } if (a->dct!=DCT_OFF) { int t; for (t=0;tvoice[t].masterchn==mp_channel)&& (a->sample==pf->voice[t].sample)) { k=0; switch (a->dct) { case DCT_NOTE: if (a->note==pf->voice[t].note) k=1; break; case DCT_SAMPLE: if (a->handle==pf->voice[t].handle) k=1; break; case DCT_INST: k=1; break; } if (k) switch (a->dca) { case DCA_CUT: pf->voice[t].fadevol=0; break; case DCA_OFF: pf->voice[t].keyoff|=KEY_OFF; if ((!(pf->voice[t].volflg&EF_ON))|| (pf->voice[t].volflg&EF_LOOP)) pf->voice[t].keyoff=KEY_KILL; break; case DCA_FADE: pf->voice[t].keyoff|=KEY_FADE; break; } } } } /* if (a->kick==KICK_NOTE) */ } } /* Setup module and NNA voices */ void pt_SetupVoices(void) { MP_VOICE *aout; for (mp_channel=0;mp_channelnumchn;mp_channel++) { a=&pf->control[mp_channel]; if (a->notedelay) continue; if (a->kick==KICK_NOTE) { /* if no channel was cut above, find an empty or quiet channel here */ if (pf->flags&UF_NNA) { if (!a->slave) { int newchn; if ((newchn=MP_FindEmptyChannel())!=-1) a->slave=&pf->voice[a->slavechn=newchn]; } } else a->slave=&pf->voice[a->slavechn=mp_channel]; /* assign parts of MP_VOICE only done for a KICK ! */ if ((aout=a->slave)) { if (aout->mflag && aout->master) aout->master->slave=NULL; a->slave=aout; aout->master=a; aout->masterchn=mp_channel; aout->mflag=1; } } else aout=a->slave; if (aout) { aout->kick=a->kick; aout->i=a->i; aout->s=a->s; aout->sample=a->sample; aout->handle=a->handle; aout->period=a->period; aout->panning=a->panning; aout->chanvol=a->chanvol; aout->fadevol=a->fadevol; aout->start=a->start; aout->volflg=a->volflg; aout->panflg=a->panflg; aout->pitflg=a->pitflg; aout->volume=a->outvolume; aout->keyoff=a->keyoff; aout->note=a->note; aout->nna=a->nna; } a->kick=KICK_ABSENT; } } /* second effect pass */ void pt_EffectsPass2(void) { UBYTE c; for (mp_channel=0;mp_channelnumchn;mp_channel++) { a=&pf->control[mp_channel]; if (!a->row) continue; UniSetRow(a->row); while((c=UniGetByte())) if (c==UNI_ITEFFECTS0) { c=UniGetByte(); if ((c>>4)==SS_S7EFFECTS) DoNNAEffects(c&0xf); } else UniSkipOpcode(c); } } void Player_HandleTick(void) { int max_volume; #if 0 /* don't handle the very first ticks, this allows the other hardware to settle down so we don't loose any starting notes */ if (isfirst) { isfirst--; return; } #endif if ((!pf)||(pf->forbid)||(pf->sngpos>=pf->numpos)) return; /* update time counter (sngtime is in milliseconds (in fact 2^-10)) */ pf->sngremainder+=(1<<9)*5; /* thus 2.5*(1<<10), since fps=0.4xtempo */ pf->sngtime+=pf->sngremainder/pf->bpm; pf->sngremainder%=pf->bpm; if (++pf->vbtick>=pf->sngspd) { if (pf->pat_repcrazy) pf->pat_repcrazy=0; /* play 2 times row 0 */ else pf->patpos++; pf->vbtick=0; /* process pattern-delay. pf->patdly2 is the counter and pf->patdly is the command memory. */ if (pf->patdly) pf->patdly2=pf->patdly,pf->patdly=0; if (pf->patdly2) { /* patterndelay active */ if (--pf->patdly2) /* so turn back pf->patpos by 1 */ if (pf->patpos) pf->patpos--; } /* do we have to get a new patternpointer ? (when pf->patpos reaches the pattern size, or when a patternbreak is active) */ if (((pf->patpos>=pf->numrow)&&(pf->numrow>0))&&(!pf->posjmp)) pf->posjmp=3; if (pf->posjmp) { pf->patpos=pf->numrow?(pf->patbrk%pf->numrow):0; pf->pat_repcrazy=0; pf->sngpos+=(pf->posjmp-2); for (mp_channel=0;mp_channelnumchn;mp_channel++) pf->control[mp_channel].pat_reppos=-1; pf->patbrk=pf->posjmp=0; /* handle the "---" (end of song) pattern since it can occur *inside* the module in .IT and .S3M */ if ((pf->sngpos>=pf->numpos)||(pf->positions[pf->sngpos]==255)) { if (!pf->wrap) return; if (!(pf->sngpos=pf->reppos)) { pf->volume=pf->initvolume>128?128:pf->initvolume; pf->sngspd=pf->initspeed?(pf->initspeed<32?pf->initspeed:32):6; pf->bpm=pf->inittempo<32?32:pf->inittempo; } } if (pf->sngpos<0) pf->sngpos=pf->numpos-1; } if (!pf->patdly2) pt_Notes(); } if (((pf->sngpos==pf->numpos-1)||(pf->positions[pf->sngpos+1]==255))&& (pf->fadeout)) max_volume=pf->numrow?((pf->numrow-pf->patpos)*128)/pf->numrow:0; else max_volume=128; pt_EffectsPass1(); if (pf->flags&UF_NNA) pt_NNA(); pt_SetupVoices(); pt_EffectsPass2(); /* now set up the actual hardware channel playback information */ pt_UpdateVoices(max_volume); } static void Player_Init_internal(MODULE* mf) { int t; for (t=0;tnumchn;t++) { mf->control[t].chanvol=mf->chanvol[t]; mf->control[t].panning=mf->panning[t]; } mf->sngtime=0; mf->sngremainder=0; mf->pat_repcrazy=0; mf->sngpos=0; mf->sngspd=mf->initspeed?(mf->initspeed<32?mf->initspeed:32):6; mf->volume=mf->initvolume>128?128:mf->initvolume; mf->vbtick=mf->sngspd; mf->patdly=0; mf->patdly2=0; mf->bpm=mf->inittempo<32?32:mf->inittempo; mf->realchn=0; mf->patpos=0; mf->posjmp=2; /* make sure the player fetches the first note */ mf->numrow=-1; mf->patbrk=0; } BOOL Player_Init(MODULE* mf) { mf->extspd=1; mf->panflag=1; mf->wrap=0; mf->loop=1; mf->fadeout=0; mf->relspd=0; /* make sure the player doesn't start with garbage */ if (!(mf->control=(MP_CONTROL*)_mm_calloc(mf->numchn,sizeof(MP_CONTROL)))) return 1; if (!(mf->voice=(MP_VOICE*)_mm_calloc(md_sngchn,sizeof(MP_VOICE)))) return 1; Player_Init_internal(mf); return 0; } void Player_Exit_internal(MODULE* mf) { if (!mf) return; if (mf==pf) { Player_Stop_internal(); pf=NULL; } if (mf->control) free(mf->control); if (mf->voice) free(mf->voice); mf->control=NULL; mf->voice=NULL; } void Player_Exit(MODULE* mf) { MUTEX_LOCK(vars); Player_Exit_internal(mf); MUTEX_UNLOCK(vars); } void Player_SetVolume(SWORD volume) { MUTEX_LOCK(vars); if (pf) pf->volume=pf->initvolume=(volume<0)?0:(volume>128)?128:volume; MUTEX_UNLOCK(vars); } MODULE* Player_GetModule(void) { MODULE* result; MUTEX_LOCK(vars); result=pf; MUTEX_UNLOCK(vars); return result; } void Player_Start(MODULE *mf) { int t; if (!mf) return; if (!MikMod_Active()) MikMod_EnableOutput(); mf->forbid=0; MUTEX_LOCK(vars); if (pf!=mf) { /* new song is being started, so completely stop out the old one. */ if (pf) pf->forbid=1; for (t=0;tforbid=1; pf=NULL; } void Player_Stop(void) { MUTEX_LOCK(vars); Player_Stop_internal(); MUTEX_UNLOCK(vars); } BOOL Player_Active(void) { BOOL result=0; MUTEX_LOCK(vars); if (pf) result=(!(pf->sngpos>=pf->numpos)); MUTEX_UNLOCK(vars); return result; } void Player_NextPosition(void) { MUTEX_LOCK(vars); if (pf) { int t; pf->forbid=1; pf->posjmp=3; pf->patbrk=0; pf->vbtick=pf->sngspd; for (t=0;tvoice[t].i=NULL; pf->voice[t].s=NULL; } for (t=0;tnumchn;t++) { pf->control[t].i=NULL; pf->control[t].s=NULL; } pf->forbid=0; } MUTEX_UNLOCK(vars); } void Player_PrevPosition(void) { MUTEX_LOCK(vars); if (pf) { int t; pf->forbid=1; pf->posjmp=1; pf->patbrk=0; pf->vbtick=pf->sngspd; for (t=0;tvoice[t].i=NULL; pf->voice[t].s=NULL; } for (t=0;tnumchn;t++) { pf->control[t].i=NULL; pf->control[t].s=NULL; } pf->forbid=0; } MUTEX_UNLOCK(vars); } void Player_SetPosition(UWORD pos) { MUTEX_LOCK(vars); if (pf) { int t; pf->forbid=1; if (pos>=pf->numpos) pos=pf->numpos; pf->posjmp=2; pf->patbrk=0; pf->sngpos=pos; pf->vbtick=pf->sngspd; for (t=0;tvoice[t].i=NULL; pf->voice[t].s=NULL; } for (t=0;tnumchn;t++) { pf->control[t].i=NULL; pf->control[t].s=NULL; } pf->forbid=0; if (!pos) Player_Init_internal(pf); } MUTEX_UNLOCK(vars); } static void Player_Unmute_internal(SLONG arg1,va_list ap) { SLONG t,arg2,arg3=0; if (pf) { switch (arg1) { case MUTE_INCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (;arg2numchn && arg2<=arg3;arg2++) pf->control[arg2].muted=0; break; case MUTE_EXCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (t=0;tnumchn;t++) { if ((t>=arg2) && (t<=arg3)) continue; pf->control[t].muted=0; } break; default: if (arg1numchn) pf->control[arg1].muted=0; break; } } } void Player_Unmute(SLONG arg1, ...) { va_list args; va_start(args,arg1); MUTEX_LOCK(vars); Player_Unmute_internal(arg1,args); MUTEX_UNLOCK(vars); va_end(args); } static void Player_Mute_internal(SLONG arg1,va_list ap) { SLONG t,arg2,arg3=0; if (pf) { switch (arg1) { case MUTE_INCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (;arg2numchn && arg2<=arg3;arg2++) pf->control[arg2].muted=1; break; case MUTE_EXCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (t=0;tnumchn;t++) { if ((t>=arg2) && (t<=arg3)) continue; pf->control[t].muted=1; } break; default: if (arg1numchn) pf->control[arg1].muted=1; break; } } } void Player_Mute(SLONG arg1,...) { va_list args; va_start(args,arg1); MUTEX_LOCK(vars); Player_Mute_internal(arg1,args); MUTEX_UNLOCK(vars); va_end(args); } static void Player_ToggleMute_internal(SLONG arg1,va_list ap) { SLONG arg2,arg3=0; ULONG t; if (pf) { switch (arg1) { case MUTE_INCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (;arg2numchn && arg2<=arg3;arg2++) pf->control[arg2].muted=1-pf->control[arg2].muted; break; case MUTE_EXCLUSIVE: if (((!(arg2=va_arg(ap,SLONG)))&&(!(arg3=va_arg(ap,SLONG))))|| (arg2>arg3)||(arg3>=pf->numchn)) return; for (t=0;tnumchn;t++) { if ((t>=arg2) && (t<=arg3)) continue; pf->control[t].muted=1-pf->control[t].muted; } break; default: if (arg1numchn) pf->control[arg1].muted=1-pf->control[arg1].muted; break; } } } void Player_ToggleMute(SLONG arg1,...) { va_list args; va_start(args,arg1); MUTEX_LOCK(vars); Player_ToggleMute_internal(arg1,args); MUTEX_UNLOCK(vars); va_end(args); } BOOL Player_Muted(UBYTE chan) { BOOL result=1; MUTEX_LOCK(vars); if (pf) result=(channumchn)?pf->control[chan].muted:1; MUTEX_UNLOCK(vars); return result; } int Player_GetChannelVoice(UBYTE chan) { int result=0; MUTEX_LOCK(vars); if (pf) result=(channumchn)?pf->control[chan].slavechn:-1; MUTEX_UNLOCK(vars); return result; } UWORD Player_GetChannelPeriod(UBYTE chan) { UWORD result=0; MUTEX_LOCK(vars); if (pf) result=(channumchn)?pf->control[chan].period:0; MUTEX_UNLOCK(vars); return result; } BOOL Player_Paused_internal(void) { return pf?pf->forbid:1; } BOOL Player_Paused(void) { BOOL result; MUTEX_LOCK(vars); result=Player_Paused_internal(); MUTEX_UNLOCK(vars); return result; } void Player_TogglePause(void) { MUTEX_LOCK(vars); if (pf) pf->forbid=1-pf->forbid; MUTEX_UNLOCK(vars); } void Player_SetSpeed(UWORD speed) { MUTEX_LOCK(vars); if (pf) pf->sngspd=speed?(speed<32?speed:32):1; MUTEX_UNLOCK(vars); } void Player_SetTempo(UWORD tempo) { if (tempo<32) tempo=32; MUTEX_LOCK(vars); if (pf) { if ((!(pf->flags&UF_HIGHBPM))&&(tempo>255)) tempo=255; pf->bpm=tempo; } MUTEX_UNLOCK(vars); } static int _pl_synchro_value; void Player_SetSynchroValue(int i) { _pl_synchro_value = i; } int Player_GetSynchroValue(void) { return _pl_synchro_value; } /* ex:set ts=4: */