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comparison playercode/mplayer.c @ 7:de95ce2eacfd

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Initial revision
author darius
date Fri, 23 Jan 1998 16:05:09 +0000
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children 437e8455d862
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6:d14fd386d182 7:de95ce2eacfd
1 /*
2 --> The Protracker Player Driver
3 -> Part of the SPLAYER pack for MikMod 3.0
4
5 The protracker driver supports all base Protracker 3.x commands and fea-
6 tures.
7 */
8
9 #include <string.h>
10 #include <stdarg.h>
11 #include "mikmod.h"
12
13
14 static void DoNNAEffects(UBYTE dat);
15
16 // Set forbid to 1 when you want to modify any of the pf->sngpos, pf->patpos etc.
17 // variables and clear it when you're done. This prevents getting strange
18 // results due to intermediate interrupts.
19
20 static UNIMOD *pf; // <- this modfile is being played
21 static SWORD mp_channel; // channel it's working on
22 static MP_CONTROL *a; // current AUDTMP it's working on
23 static int isfirst;
24
25 static MP_VOICE aout_dummy;
26
27 static UWORD mytab[12] =
28 { 1712*16, 1616*16, 1524*16, 1440*16, 1356*16, 1280*16,
29 1208*16, 1140*16, 1076*16, 1016*16, 960*16, 907*16
30 };
31
32
33 static UBYTE VibratoTable[32] =
34 { 0,24,49,74,97,120,141,161,
35 180,197,212,224,235,244,250,253,
36 255,253,250,244,235,224,212,197,
37 180,161,141,120,97,74,49,24
38 };
39
40
41 static UBYTE avibtab[128] =
42 { 0,1,3,4,6,7,9,10,12,14,15,17,18,20,21,23,
43 24,25,27,28,30,31,32,34,35,36,38,39,40,41,42,44,
44 45,46,47,48,49,50,51,52,53,54,54,55,56,57,57,58,
45 59,59,60,60,61,61,62,62,62,63,63,63,63,63,63,63,
46 64,63,63,63,63,63,63,63,62,62,62,61,61,60,60,59,
47 59,58,57,57,56,55,54,54,53,52,51,50,49,48,47,46,
48 45,44,42,41,40,39,38,36,35,34,32,31,30,28,27,25,
49 24,23,21,20,18,17,15,14,12,10,9,7,6,4,3,1
50 };
51
52
53 // ** Triton's linear periods to frequency translation table (for
54 // ** Fast Tracker 2 [XM] modules):
55
56 static ULONG lintab[768] =
57 { 535232,534749,534266,533784,533303,532822,532341,531861,
58 531381,530902,530423,529944,529466,528988,528511,528034,
59 527558,527082,526607,526131,525657,525183,524709,524236,
60 523763,523290,522818,522346,521875,521404,520934,520464,
61 519994,519525,519057,518588,518121,517653,517186,516720,
62 516253,515788,515322,514858,514393,513929,513465,513002,
63 512539,512077,511615,511154,510692,510232,509771,509312,
64 508852,508393,507934,507476,507018,506561,506104,505647,
65 505191,504735,504280,503825,503371,502917,502463,502010,
66 501557,501104,500652,500201,499749,499298,498848,498398,
67 497948,497499,497050,496602,496154,495706,495259,494812,
68 494366,493920,493474,493029,492585,492140,491696,491253,
69 490809,490367,489924,489482,489041,488600,488159,487718,
70 487278,486839,486400,485961,485522,485084,484647,484210,
71 483773,483336,482900,482465,482029,481595,481160,480726,
72 480292,479859,479426,478994,478562,478130,477699,477268,
73 476837,476407,475977,475548,475119,474690,474262,473834,
74 473407,472979,472553,472126,471701,471275,470850,470425,
75 470001,469577,469153,468730,468307,467884,467462,467041,
76 466619,466198,465778,465358,464938,464518,464099,463681,
77 463262,462844,462427,462010,461593,461177,460760,460345,
78 459930,459515,459100,458686,458272,457859,457446,457033,
79 456621,456209,455797,455386,454975,454565,454155,453745,
80 453336,452927,452518,452110,451702,451294,450887,450481,
81 450074,449668,449262,448857,448452,448048,447644,447240,
82 446836,446433,446030,445628,445226,444824,444423,444022,
83 443622,443221,442821,442422,442023,441624,441226,440828,
84 440430,440033,439636,439239,438843,438447,438051,437656,
85 437261,436867,436473,436079,435686,435293,434900,434508,
86 434116,433724,433333,432942,432551,432161,431771,431382,
87 430992,430604,430215,429827,429439,429052,428665,428278,
88 427892,427506,427120,426735,426350,425965,425581,425197,
89 424813,424430,424047,423665,423283,422901,422519,422138,
90 421757,421377,420997,420617,420237,419858,419479,419101,
91 418723,418345,417968,417591,417214,416838,416462,416086,
92 415711,415336,414961,414586,414212,413839,413465,413092,
93 412720,412347,411975,411604,411232,410862,410491,410121,
94 409751,409381,409012,408643,408274,407906,407538,407170,
95 406803,406436,406069,405703,405337,404971,404606,404241,
96 403876,403512,403148,402784,402421,402058,401695,401333,
97 400970,400609,400247,399886,399525,399165,398805,398445,
98 398086,397727,397368,397009,396651,396293,395936,395579,
99 395222,394865,394509,394153,393798,393442,393087,392733,
100 392378,392024,391671,391317,390964,390612,390259,389907,
101 389556,389204,388853,388502,388152,387802,387452,387102,
102 386753,386404,386056,385707,385359,385012,384664,384317,
103 383971,383624,383278,382932,382587,382242,381897,381552,
104 381208,380864,380521,380177,379834,379492,379149,378807,
105
106 378466,378124,377783,377442,377102,376762,376422,376082,
107 375743,375404,375065,374727,374389,374051,373714,373377,
108 373040,372703,372367,372031,371695,371360,371025,370690,
109 370356,370022,369688,369355,369021,368688,368356,368023,
110 367691,367360,367028,366697,366366,366036,365706,365376,
111 365046,364717,364388,364059,363731,363403,363075,362747,
112 362420,362093,361766,361440,361114,360788,360463,360137,
113 359813,359488,359164,358840,358516,358193,357869,357547,
114 357224,356902,356580,356258,355937,355616,355295,354974,
115 354654,354334,354014,353695,353376,353057,352739,352420,
116 352103,351785,351468,351150,350834,350517,350201,349885,
117 349569,349254,348939,348624,348310,347995,347682,347368,
118 347055,346741,346429,346116,345804,345492,345180,344869,
119 344558,344247,343936,343626,343316,343006,342697,342388,
120 342079,341770,341462,341154,340846,340539,340231,339924,
121 339618,339311,339005,338700,338394,338089,337784,337479,
122 337175,336870,336566,336263,335959,335656,335354,335051,
123 334749,334447,334145,333844,333542,333242,332941,332641,
124 332341,332041,331741,331442,331143,330844,330546,330247,
125 329950,329652,329355,329057,328761,328464,328168,327872,
126 327576,327280,326985,326690,326395,326101,325807,325513,
127 325219,324926,324633,324340,324047,323755,323463,323171,
128 322879,322588,322297,322006,321716,321426,321136,320846,
129 320557,320267,319978,319690,319401,319113,318825,318538,
130 318250,317963,317676,317390,317103,316817,316532,316246,
131 315961,315676,315391,315106,314822,314538,314254,313971,
132 313688,313405,313122,312839,312557,312275,311994,311712,
133 311431,311150,310869,310589,310309,310029,309749,309470,
134 309190,308911,308633,308354,308076,307798,307521,307243,
135 306966,306689,306412,306136,305860,305584,305308,305033,
136 304758,304483,304208,303934,303659,303385,303112,302838,
137 302565,302292,302019,301747,301475,301203,300931,300660,
138 300388,300117,299847,299576,299306,299036,298766,298497,
139 298227,297958,297689,297421,297153,296884,296617,296349,
140 296082,295815,295548,295281,295015,294749,294483,294217,
141 293952,293686,293421,293157,292892,292628,292364,292100,
142 291837,291574,291311,291048,290785,290523,290261,289999,
143 289737,289476,289215,288954,288693,288433,288173,287913,
144 287653,287393,287134,286875,286616,286358,286099,285841,
145 285583,285326,285068,284811,284554,284298,284041,283785,
146 283529,283273,283017,282762,282507,282252,281998,281743,
147 281489,281235,280981,280728,280475,280222,279969,279716,
148 279464,279212,278960,278708,278457,278206,277955,277704,
149 277453,277203,276953,276703,276453,276204,275955,275706,
150 275457,275209,274960,274712,274465,274217,273970,273722,
151 273476,273229,272982,272736,272490,272244,271999,271753,
152 271508,271263,271018,270774,270530,270286,270042,269798,
153 269555,269312,269069,268826,268583,268341,268099,267857
154 };
155
156
157 #define LOGFAC 2*16
158
159 static UWORD logtab[104] =
160 { LOGFAC*907,LOGFAC*900,LOGFAC*894,LOGFAC*887,LOGFAC*881,LOGFAC*875,LOGFAC*868,LOGFAC*862,
161 LOGFAC*856,LOGFAC*850,LOGFAC*844,LOGFAC*838,LOGFAC*832,LOGFAC*826,LOGFAC*820,LOGFAC*814,
162 LOGFAC*808,LOGFAC*802,LOGFAC*796,LOGFAC*791,LOGFAC*785,LOGFAC*779,LOGFAC*774,LOGFAC*768,
163 LOGFAC*762,LOGFAC*757,LOGFAC*752,LOGFAC*746,LOGFAC*741,LOGFAC*736,LOGFAC*730,LOGFAC*725,
164 LOGFAC*720,LOGFAC*715,LOGFAC*709,LOGFAC*704,LOGFAC*699,LOGFAC*694,LOGFAC*689,LOGFAC*684,
165 LOGFAC*678,LOGFAC*675,LOGFAC*670,LOGFAC*665,LOGFAC*660,LOGFAC*655,LOGFAC*651,LOGFAC*646,
166 LOGFAC*640,LOGFAC*636,LOGFAC*632,LOGFAC*628,LOGFAC*623,LOGFAC*619,LOGFAC*614,LOGFAC*610,
167 LOGFAC*604,LOGFAC*601,LOGFAC*597,LOGFAC*592,LOGFAC*588,LOGFAC*584,LOGFAC*580,LOGFAC*575,
168 LOGFAC*570,LOGFAC*567,LOGFAC*563,LOGFAC*559,LOGFAC*555,LOGFAC*551,LOGFAC*547,LOGFAC*543,
169 LOGFAC*538,LOGFAC*535,LOGFAC*532,LOGFAC*528,LOGFAC*524,LOGFAC*520,LOGFAC*516,LOGFAC*513,
170 LOGFAC*508,LOGFAC*505,LOGFAC*502,LOGFAC*498,LOGFAC*494,LOGFAC*491,LOGFAC*487,LOGFAC*484,
171 LOGFAC*480,LOGFAC*477,LOGFAC*474,LOGFAC*470,LOGFAC*467,LOGFAC*463,LOGFAC*460,LOGFAC*457,
172 LOGFAC*453,LOGFAC*450,LOGFAC*447,LOGFAC*443,LOGFAC*440,LOGFAC*437,LOGFAC*434,LOGFAC*431
173 };
174
175 static SBYTE PanbrelloTable[256] =
176 { 0,2,3,5,6,8,9,11,12,14,16,17,19,20,22,23,
177 24,26,27,29,30,32,33,34,36,37,38,39,41,42,43,44,
178 45,46,47,48,49,50,51,52,53,54,55,56,56,57,58,59,
179 59,60,60,61,61,62,62,62,63,63,63,64,64,64,64,64,
180 64,64,64,64,64,64,63,63,63,62,62,62,61,61,60,60,
181 59,59,58,57,56,56,55,54,53,52,51,50,49,48,47,46,
182 45,44,43,42,41,39,38,37,36,34,33,32,30,29,27,26,
183 24,23,22,20,19,17,16,14,12,11,9,8,6,5,3,2,
184 0,-2,-3,-5,-6,-8,-9,-11,-12,-14,-16,-17,-19,-20,-22,-23,
185 -24,-26,-27,-29,-30,-32,-33,-34,-36,-37,-38,-39,-41,-42,-43,-44,
186 -45,-46,-47,-48,-49,-50,-51,-52,-53,-54,-55,-56,-56,-57,-58,-59,
187 -59,-60,-60,-61,-61,-62,-62,-62,-63,-63,-63,-64,-64,-64,-64,-64,
188 -64,-64,-64,-64,-64,-64,-63,-63,-63,-62,-62,-62,-61,-61,-60,-60,
189 -59,-59,-58,-57,-56,-56,-55,-54,-53,-52,-51,-50,-49,-48,-47,-46,
190 -45,-44,-43,-42,-41,-39,-38,-37,-36,-34,-33,-32,-30,-29,-27,-26,
191 -24,-23,-22,-20,-19,-17,-16,-14,-12,-11,-9,-8,-6,-5,-3,-2
192 };
193
194
195 /* New Note Action Scoring System:
196 ---------------------------------
197 1) total-volume (fadevol, chanvol, volume) is the main scorer.
198 2) a looping sample is a bonus x2
199 3) a forground channel is a bonus x4
200 4) an active envelope with keyoff is a handicap -x2
201 */
202 static int MP_FindEmptyChannel(int curchan) // returns mp_control index of free channel
203 {
204 MP_VOICE *a;
205 ULONG t,k,tvol,p,pp;
206
207 /*for(t=md_sngchn; t; t--, audpool++)
208 { if(audpool == md_sngchn) audpool = 0;
209 if(!(pf->voice[audpool].kick) && Voice_Stopped(audpool))
210 { audpool++;
211 return audpool-1;
212 }
213 }*/
214
215 for(t=0; t<md_sngchn; t++)
216 { if(!(pf->voice[t].kick) && Voice_Stopped(t))
217 { return t;
218 }
219 }
220
221 tvol = 0xffffffUL; t = 0; p = 0; a = pf->voice;
222 for(k=0; k<md_sngchn; k++, a++)
223 { if(!a->kick)
224 { pp = a->totalvol << ((a->s->flags & SF_LOOP) ? 1 : 0);
225 if((a->master!=NULL) && (a==a->master->slave))
226 pp <<= 2;
227
228 /*if(a->volflg & EF_ON)
229 { if(a->volflg & (EF_SUSTAIN | EF_LOOP))
230 { if(a->keyoff & KEY_OFF)
231 { pp >>= 1;
232 if(a->venv.env[a->venv.end].val < 32) pp>>=1;
233 } else
234 pp <<= 1;
235 } else pp <<= 1;
236 }*/
237
238 if(pp < tvol)
239 { tvol = pp;
240 t = k;
241 }
242 }
243 }
244
245 if(tvol>8000*7) return -1; //mp_channel;
246
247 return t;
248 }
249
250
251 static SWORD Interpolate(SWORD p, SWORD p1, SWORD p2, SWORD v1, SWORD v2)
252 {
253 SWORD dp,dv,di;
254
255 if(p1==p2) return v1;
256
257 dv = v2-v1;
258 dp = p2-p1;
259 di = p-p1;
260
261 return v1 + ((SLONG)(di*dv) / dp);
262 }
263
264
265 UWORD getlinearperiod(UBYTE note, ULONG fine)
266 {
267 return((10L*12*16*4)-((ULONG)note*16*4)-(fine/2)+64);
268 }
269
270
271 static UWORD getlogperiod(UBYTE note,ULONG fine)
272 {
273 UBYTE n,o;
274 UWORD p1,p2;
275 ULONG i;
276
277 n = note%12;
278 o = note/12;
279 i = (n<<3) + (fine>>4); // n*8 + fine/16
280
281 p1 = logtab[i];
282 p2 = logtab[i+1];
283
284 return(Interpolate(fine/16,0,15,p1,p2)>>o);
285 }
286
287
288 static UWORD getoldperiod(UBYTE note, ULONG speed)
289 {
290 UBYTE n, o;
291 ULONG period;
292
293 if(!speed) return 4242; // <- prevent divide overflow.. (42 eheh)
294
295 n = note % 12;
296 o = note / 12;
297 period = ((8363l*(ULONG)mytab[n]) >> o ) / speed;
298 return period;
299 }
300
301
302 static UWORD GetPeriod(UBYTE note, ULONG speed)
303 {
304 if(pf->flags & UF_XMPERIODS)
305 return (pf->flags & UF_LINEAR) ? getlinearperiod(note,speed) : getlogperiod(note,speed);
306
307 return getoldperiod(note,speed);
308 }
309
310
311 static SWORD InterpolateEnv(SWORD p, ENVPT *a, ENVPT *b)
312 {
313 return(Interpolate(p,a->pos,b->pos,a->val,b->val));
314 }
315
316
317 static SWORD DoPan(SWORD envpan, SWORD pan)
318 {
319 return(pan + (((envpan-128)*(128-abs(pan-128)))/128));
320 }
321
322
323 static void StartEnvelope(ENVPR *t, UBYTE flg, UBYTE pts, UBYTE susbeg, UBYTE susend, UBYTE beg, UBYTE end, ENVPT *p, UBYTE keyoff)
324 {
325 t->flg = flg;
326 t->pts = pts;
327 t->susbeg = susbeg;
328 t->susend = susend;
329 t->beg = beg;
330 t->end = end;
331 t->env = p;
332 t->p = 0;
333 t->a = 0;
334 t->b = ((t->flg & EF_SUSTAIN) && !(keyoff & KEY_OFF)) ? 0 : 1;
335 }
336
337
338 static SWORD ProcessEnvelope(ENVPR *t, SWORD v, UBYTE keyoff)
339
340 // This procedure processes all envelope types, include volume, pitch, and
341 // panning. Envelopes are defined by a set of points, each with a magnitude
342 // [relating either to volume, panniong position, or pitch modifier] and a
343 // tick position.
344 //
345 // Envelopes work in the following manner:
346 //
347 // (a) Each tick the envelope is moved a point further in its progression.
348 // 1. For an accurate progression, magnitudes between two envelope points
349 // are interpolated.
350 //
351 // (b) When progression reaches a defined point on the envelope, values
352 // are shifted to interpolate between this point and the next,
353 // and checks for loops or envelope end are done.
354 //
355 // Misc:
356 // Sustain loops are loops that are only active as long as the keyoff
357 // flag is clear. When a volume envelope terminates, so does the current
358 // fadeout.
359
360 {
361 if(t->flg & EF_ON)
362 { UBYTE a, b; // actual points in the envelope
363 UWORD p; // the 'tick counter' - real point being played
364
365 a = t->a;
366 b = t->b;
367 p = t->p;
368
369 // compute the current envelope value between points a and b
370
371 if(a == b)
372 v = t->env[a].val;
373 else
374 v = InterpolateEnv(p, &t->env[a], &t->env[b]);
375
376 p++;
377
378 // pointer reached point b?
379
380 if(p >= t->env[b].pos)
381 { a = b++; // shift points a and b
382
383 // Check for loops, sustain loops, or end of envelope.
384
385 if((t->flg & EF_SUSTAIN) && !(keyoff & KEY_OFF) && (b > t->susend))
386 { a = t->susbeg;
387 if(t->susbeg == t->susend) b = a; else b = a + 1;
388 p = t->env[a].pos;
389 } else if((t->flg & EF_LOOP) && (b > t->end))
390 { a = t->beg;
391 if(t->beg == t->end) b = a; else b = a + 1;
392 p = t->env[a].pos;
393 } else
394 { if(b >= t->pts)
395 { if((t->flg & EF_VOLENV) && (mp_channel != -1))
396 { pf->voice[mp_channel].keyoff |= KEY_FADE;
397 if(v==0)
398 pf->voice[mp_channel].fadevol = 0;
399 }
400 b--; p--;
401 }
402 }
403 }
404 t->a = a;
405 t->b = b;
406 t->p = p;
407 }
408 return v;
409 }
410
411
412 ULONG getfrequency(UBYTE flags, ULONG period)
413
414 // XM linear period to frequency conversion
415
416 {
417 ULONG result;
418
419 if(flags & UF_LINEAR)
420 result = lintab[period % 768] >> (period / 768);
421 else
422 result = (8363L*1712L) / period;
423
424 return result;
425 }
426
427
428 static void DoEEffects(UBYTE dat)
429 {
430 UBYTE nib;
431
432 nib = dat & 0xf;
433
434 switch(dat>>4)
435 { case 0x0: // filter toggle, not supported
436 break;
437
438 case 0x1: // fineslide up
439 if(!pf->vbtick) a->tmpperiod-=(nib<<2);
440 break;
441
442 case 0x2: // fineslide dn
443 if(!pf->vbtick) a->tmpperiod+=(nib<<2);
444 break;
445
446 case 0x3: // glissando ctrl
447 a->glissando = nib;
448 break;
449
450 case 0x4: // set vibrato waveform
451 a->wavecontrol &= 0xf0;
452 a->wavecontrol |= nib;
453 break;
454
455 case 0x5: // set finetune
456 // a->speed=finetune[nib];
457 // a->tmpperiod=GetPeriod(a->note,pf->samples[a->sample].transpose,a->speed);
458 break;
459
460 case 0x6: // set patternloop
461 if(pf->vbtick) break;
462 // hmm.. this one is a real kludge. But now it
463 // works
464 if(nib) // set reppos or repcnt ?
465 { // set repcnt, so check if repcnt already is set,
466 // which means we are already looping
467
468 if(pf->pat_repcnt > 0)
469 pf->pat_repcnt--; // already looping, decrease counter
470 else
471 pf->pat_repcnt = nib; // not yet looping, so set repcnt
472
473 if(pf->pat_repcnt) // jump to reppos if repcnt>0
474 pf->patpos = pf->pat_reppos;
475 } else
476 { pf->pat_reppos = pf->patpos-1; // set reppos
477 }
478 break;
479
480
481 case 0x7: // set tremolo waveform
482 a->wavecontrol &= 0x0f;
483 a->wavecontrol |= nib << 4;
484 break;
485
486 case 0x8: // set panning
487 if(pf->panflag)
488 { if(nib<=8) nib*=16; else nib*=17;
489 a->panning = nib;
490 pf->panning[mp_channel] = nib;
491 }
492 break;
493
494 case 0x9: // retrig note
495 // only retrigger if
496 // data nibble > 0
497
498 if(nib > 0)
499 { if(a->retrig==0)
500 { // when retrig counter reaches 0,
501 // reset counter and restart the sample
502 a->kick = 1;
503 a->retrig = nib;
504 }
505 a->retrig--; // countdown
506 }
507 break;
508
509 case 0xa: // fine volume slide up
510 if(pf->vbtick) break;
511
512 a->tmpvolume += nib;
513 if(a->tmpvolume > 64) a->tmpvolume = 64;
514 break;
515
516 case 0xb: // fine volume slide dn
517 if(pf->vbtick) break;
518
519 a->tmpvolume -= nib;
520 if(a->tmpvolume < 0) a->tmpvolume = 0;
521 break;
522
523 case 0xc: // cut note
524 // When pf->vbtick reaches the cut-note value,
525 // turn the volume to zero ( Just like
526 // on the amiga)
527 if(pf->vbtick>=nib)
528 a->tmpvolume = 0; // just turn the volume down
529 break;
530
531 case 0xd: // note delay
532 // delay the start of the
533 // sample until pf->vbtick==nib
534 if(pf->vbtick==nib)
535 { //a->kick = 1;
536 a->notedelay = 0;
537 } else if(pf->vbtick==0)
538 { //a->kick = 0;
539 a->notedelay = 1;
540 }
541 break;
542
543 case 0xe: // pattern delay
544 if(pf->vbtick) break;
545 if(!pf->patdly2) pf->patdly = nib+1; // only once (when pf->vbtick=0)
546 break;
547
548 case 0xf: // invert loop, not supported
549 break;
550 }
551 }
552
553
554 static void DoVibrato(void)
555 {
556 UBYTE q;
557 UWORD temp;
558
559 q = (a->vibpos>>2)&0x1f;
560
561 switch(a->wavecontrol&3)
562 { case 0: // sine
563 temp = VibratoTable[q];
564 break;
565
566 case 1: // ramp down
567 q<<=3;
568 if(a->vibpos<0) q = 255-q;
569 temp = q;
570 break;
571
572 case 2: // square wave
573 temp = 255;
574 break;
575
576 case 3: // Evil random wave
577 temp = rand() & 255;
578 break;
579 }
580
581 temp*=a->vibdepth;
582 temp>>=7;
583 temp<<=2;
584
585 if(a->vibpos>=0)
586 a->period = a->tmpperiod+temp;
587 else
588 a->period = a->tmpperiod-temp;
589
590 if(pf->vbtick) a->vibpos+=a->vibspd; // do not update when pf->vbtick==0
591 }
592
593
594 static void DoTremolo(void)
595 {
596 UBYTE q;
597 UWORD temp;
598
599 q = (a->trmpos>>2) & 0x1f;
600
601 switch((a->wavecontrol>>4) & 3)
602 { case 0: // sine
603 temp = VibratoTable[q];
604 break;
605
606 case 1: // ramp down
607 q<<=3;
608 if(a->trmpos<0) q = 255-q;
609 temp = q;
610 break;
611
612 case 2: // square wave
613 temp = 255;
614 break;
615
616 case 3: // Evil random wave
617 temp = rand() & 255;
618 break;
619 }
620
621 temp *= a->trmdepth;
622 temp >>= 6;
623
624 if(a->trmpos >= 0)
625 { a->volume = a->tmpvolume + temp;
626 if(a->volume > 64) a->volume = 64;
627 } else
628 { a->volume = a->tmpvolume - temp;
629 if(a->volume < 0) a->volume = 0;
630 }
631
632 if(pf->vbtick) a->trmpos+=a->trmspd; // do not update when pf->vbtick==0
633 }
634
635
636 static void DoVolSlide(UBYTE dat)
637 {
638 if(!pf->vbtick) return; // do not update when pf->vbtick==0
639
640 a->tmpvolume += dat >> 4; // volume slide
641 a->tmpvolume -= dat & 0xf;
642 if(a->tmpvolume < 0) a->tmpvolume = 0;
643 if(a->tmpvolume > 64) a->tmpvolume = 64;
644 }
645
646
647 static void DoToneSlide(void)
648 {
649 int dist;
650
651 if(a->period==0) return;
652
653 if(!pf->vbtick)
654 { a->tmpperiod = a->period;
655 return;
656 }
657
658 // We have to slide a->period towards a->wantedperiod, so
659 // compute the difference between those two values
660
661 dist = a->period-a->wantedperiod;
662
663 if( dist==0 || a->portspeed>abs(dist) ) // if they are equal or if portamentospeed is too big
664 a->period = a->wantedperiod; // make tmpperiod equal tperiod
665 else if(dist>0) // dist>0 ?
666 a->period-=a->portspeed; // then slide up
667 else
668 a->period+=a->portspeed; // dist<0 -> slide down
669
670 a->tmpperiod = a->period;
671 }
672
673
674 static void DoPTEffect0(UBYTE dat)
675 {
676 UBYTE note;
677
678 note = a->note;
679
680 if(dat!=0)
681 { switch(pf->vbtick%3)
682 { case 1:
683 note+=(dat>>4); break;
684 case 2:
685 note+=(dat&0xf); break;
686 }
687 a->period = GetPeriod(note,a->speed);
688 a->ownper = 1;
689 }
690 }
691
692
693 // -----------------------------------------
694 // --> ScreamTreacker 3 Specific Effects <--
695 // -----------------------------------------
696
697 static void DoS3MVolSlide(UBYTE inf)
698 {
699 UBYTE lo, hi;
700
701 if(inf) a->s3mvolslide = inf;
702
703 inf = a->s3mvolslide;
704 lo = inf & 0xf;
705 hi = inf >> 4;
706
707 if(hi==0) a->tmpvolume -= lo;
708 else if(lo==0) a->tmpvolume += hi;
709 else if(hi==0xf)
710 { if(!pf->vbtick) a->tmpvolume -= lo;
711 } else if(lo==0xf)
712 { if(!pf->vbtick) a->tmpvolume += hi;
713 }
714 if(a->tmpvolume < 0) a->tmpvolume = 0;
715 if(a->tmpvolume > 64) a->tmpvolume = 64;
716 }
717
718
719 static void DoS3MSlideDn(UBYTE inf)
720 {
721 UBYTE hi,lo;
722
723 if(inf!=0) a->slidespeed = inf;
724 else inf = a->slidespeed;
725
726 hi = inf>>4;
727 lo = inf&0xf;
728
729 if(hi==0xf)
730 { if(!pf->vbtick) a->tmpperiod+=(UWORD)lo<<2;
731 } else if(hi==0xe)
732 { if(!pf->vbtick) a->tmpperiod+=lo;
733 } else
734 { if(pf->vbtick) a->tmpperiod+=(UWORD)inf<<2;
735 }
736 }
737
738
739 static void DoS3MSlideUp(UBYTE inf)
740 {
741 UBYTE hi,lo;
742
743 if(inf!=0) a->slidespeed = inf;
744 else inf = a->slidespeed;
745
746 hi = inf>>4;
747 lo = inf&0xf;
748
749 if(hi==0xf)
750 { if(!pf->vbtick) a->tmpperiod-=(UWORD)lo<<2;
751 } else if(hi==0xe)
752 { if(!pf->vbtick) a->tmpperiod-=lo;
753 } else
754 { if(pf->vbtick) a->tmpperiod-=(UWORD)inf<<2;
755 }
756 }
757
758
759 static void DoS3MTremor(UBYTE inf)
760 {
761 UBYTE on,off;
762
763 if(inf!=0) a->s3mtronof = inf;
764 else inf = a->s3mtronof;
765
766 if(!pf->vbtick) return;
767
768 on = (inf>>4)+1;
769 off = (inf&0xf)+1;
770
771 a->s3mtremor %= (on+off);
772 a->volume = (a->s3mtremor < on ) ? a->tmpvolume : 0;
773 a->s3mtremor++;
774 }
775
776
777 static void DoS3MRetrig(UBYTE inf)
778 {
779 UBYTE hi,lo;
780
781 hi = inf >> 4;
782 lo = inf & 0xf;
783
784 if(inf)
785 { a->s3mrtgslide = hi;
786 a->s3mrtgspeed = lo;
787 }
788
789 // only retrigger if
790 // lo nibble > 0
791
792 if(a->s3mrtgspeed > 0)
793 { if(a->retrig == 0)
794 { // when retrig counter reaches 0,
795 // reset counter and restart the sample
796
797 if(!a->kick) a->kick = 2;
798 a->retrig = a->s3mrtgspeed;
799
800 if(pf->vbtick) // don't slide on first retrig
801 { switch(a->s3mrtgslide)
802 { case 1:
803 case 2:
804 case 3:
805 case 4:
806 case 5:
807 a->tmpvolume-=(1<<(a->s3mrtgslide-1));
808 break;
809
810 case 6:
811 a->tmpvolume = (2*a->tmpvolume)/3;
812 break;
813
814 case 7:
815 a->tmpvolume = a->tmpvolume>>1;
816 break;
817
818 case 9:
819 case 0xa:
820 case 0xb:
821 case 0xc:
822 case 0xd:
823 a->tmpvolume+=(1<<(a->s3mrtgslide-9));
824 break;
825
826 case 0xe:
827 a->tmpvolume=(3*a->tmpvolume)/2;
828 break;
829
830 case 0xf:
831 a->tmpvolume=a->tmpvolume<<1;
832 break;
833 }
834 if(a->tmpvolume<0) a->tmpvolume = 0;
835 if(a->tmpvolume>64) a->tmpvolume = 64;
836 }
837 }
838 a->retrig--; // countdown
839 }
840 }
841
842
843 static void DoS3MSpeed(UBYTE speed)
844 {
845 if(pf->vbtick || pf->patdly2) return;
846
847 if(speed)
848 { pf->sngspd = speed;
849 pf->vbtick = 0;
850 }
851 }
852
853
854 static void DoS3MTempo(UBYTE tempo)
855 {
856 if(pf->vbtick || pf->patdly2) return;
857 pf->bpm = tempo;
858 }
859
860
861 static void DoS3MFineVibrato(void)
862 {
863 UBYTE q;
864 UWORD temp;
865
866 q = (a->vibpos>>2)&0x1f;
867
868 switch(a->wavecontrol&3)
869 { case 0: // sine
870 temp=VibratoTable[q];
871 break;
872
873 case 1: // ramp down
874 q<<=3;
875 if(a->vibpos<0) q=255-q;
876 temp=q;
877 break;
878
879 case 2: // square wave
880 temp=255;
881 break;
882
883 case 3: // evil random
884 temp = rand() & 255; // (range 0 to 255)
885 }
886
887 temp*=a->vibdepth;
888 temp>>=8;
889
890 if(a->vibpos>=0)
891 a->period = a->tmpperiod+temp;
892 else
893 a->period = a->tmpperiod-temp;
894
895 a->vibpos += a->vibspd;
896 }
897
898
899 static void DoS3MTremolo(void)
900 {
901 UBYTE q;
902 UWORD temp;
903
904 q = (a->trmpos>>2)&0x1f;
905
906 switch((a->wavecontrol>>4)&3)
907 { case 0: // sine
908 temp = VibratoTable[q];
909 break;
910
911 case 1: // ramp down
912 q<<=3;
913 if(a->trmpos<0) q = 255-q;
914 temp = q;
915 break;
916
917 case 2: // square wave
918 temp=255;
919 break;
920
921 case 3: // evil random
922 temp = rand() & 255; // (range 0 to 255)
923 }
924
925 temp*=a->trmdepth;
926 temp>>=7;
927
928 if(a->trmpos>=0)
929 { a->volume = a->tmpvolume + temp;
930 if(a->volume>64) a->volume = 64;
931 } else
932 { a->volume = a->tmpvolume - temp;
933 if(a->volume<0) a->volume = 0;
934 }
935
936 if(pf->vbtick) a->trmpos += a->trmspd; // do not update when pf->vbtick==0
937 }
938
939
940 // --------------------------------------
941 // --> FastTracker 2 Specific Effects <--
942 // --------------------------------------
943
944 static void DoXMVolSlide(UBYTE inf)
945 {
946 UBYTE lo,hi;
947
948 if(inf)
949 a->s3mvolslide = inf;
950
951 inf = a->s3mvolslide;
952 if(!pf->vbtick) return;
953
954 lo = inf&0xf;
955 hi = inf>>4;
956
957 if(hi==0)
958 a->tmpvolume-=lo;
959 else
960 a->tmpvolume+=hi;
961
962 if(a->tmpvolume<0) a->tmpvolume=0;
963 else if(a->tmpvolume>64) a->tmpvolume=64;
964 }
965
966
967 static void DoXMGlobalSlide(UBYTE inf)
968 {
969 if(pf->vbtick)
970 { if(inf) pf->globalslide=inf; else inf=pf->globalslide;
971 if(inf & 0xf0) inf &= 0xf0;
972 pf->volume = pf->volume + ((inf >> 4) - (inf & 0xf))*2;
973
974 if(pf->volume<0) pf->volume = 0;
975 else if(pf->volume>128) pf->volume = 128;
976 }
977 }
978
979
980 static void DoXMPanSlide(UBYTE inf)
981 {
982 UBYTE lo,hi;
983 SWORD pan;
984
985
986 if(inf!=0) a->pansspd = inf;
987 else inf = a->pansspd;
988
989 if(!pf->vbtick) return;
990
991 lo = inf & 0xf;
992 hi = inf >> 4;
993
994 // slide right has absolute priority:
995
996 if(hi) lo = 0;
997
998 pan = (a->panning == PAN_SURROUND) ? 128 : a->panning;
999
1000 pan -= lo;
1001 pan += hi;
1002
1003 if(pan < 0) pan = 0;
1004 if(pan > 255) pan = 255;
1005
1006 a->panning = pan;
1007 }
1008
1009
1010 static void DoXMExtraFineSlideUp(UBYTE inf)
1011 {
1012 if(!pf->vbtick)
1013 { if(inf) a->ffportupspd = inf; else inf = a->ffportupspd;
1014 a->period -= inf;
1015 }
1016 a->tmpperiod = a->period;
1017 }
1018
1019
1020 static void DoXMExtraFineSlideDown(UBYTE inf)
1021 {
1022 if(!pf->vbtick)
1023 { if(inf) a->ffportdnspd = inf; else inf = a->ffportdnspd;
1024 a->period += inf;
1025 }
1026 a->tmpperiod = a->period;
1027 }
1028
1029
1030 // ---------------------------------------
1031 // --> ImpulseTracker Player Functions <--
1032 // ---------------------------------------
1033
1034 static void DoITChanVolSlide(UBYTE inf)
1035 {
1036 UBYTE lo, hi;
1037
1038 if(inf) a->chanvolslide = inf;
1039 inf = a->chanvolslide;
1040
1041 lo = inf&0xf;
1042 hi = inf>>4;
1043
1044 if(hi==0)
1045 { a->chanvol-=lo;
1046 } else if(lo==0)
1047 { a->chanvol+=hi;
1048 } else if(hi==0xf)
1049 { if(!pf->vbtick) a->chanvol-=lo;
1050 } else if(lo==0xf)
1051 { if(!pf->vbtick) a->chanvol+=hi;
1052 }
1053
1054 if(a->chanvol<0) a->chanvol = 0;
1055 if(a->chanvol>64) a->chanvol = 64;
1056 }
1057
1058
1059 static void DoITGlobalSlide(UBYTE inf)
1060 {
1061 UBYTE lo,hi;
1062
1063 if(inf) pf->globalslide = inf;
1064 inf = pf->globalslide;
1065
1066 lo = inf&0xf;
1067 hi = inf>>4;
1068
1069 if(lo==0)
1070 { pf->volume += hi;
1071 } else if(hi==0)
1072 { pf->volume -= lo;
1073 } else if(lo==0xf)
1074 { if(!pf->vbtick) pf->volume += hi;
1075 } else if(hi==0xf)
1076 { if(!pf->vbtick) pf->volume -= lo;
1077 }
1078
1079 if(pf->volume < 0) pf->volume = 0;
1080 if(pf->volume > 128) pf->volume = 128;
1081 }
1082
1083
1084 static void DoITPanSlide(UBYTE inf)
1085 {
1086 UBYTE lo,hi;
1087 SWORD pan;
1088
1089 if(inf) a->pansspd = inf;
1090 inf = a->pansspd;
1091
1092 lo = inf & 0xf;
1093 hi = inf >> 4;
1094
1095 pan = (a->panning == PAN_SURROUND) ? 128 : a->panning;
1096
1097 if(hi==0)
1098 { pan += lo << 2;
1099 } else if(lo==0)
1100 { pan -= hi << 2;
1101 } else if(hi==0xf)
1102 { if(!pf->vbtick) pan += lo << 2;
1103 } else if(lo==0xf)
1104 { if(!pf->vbtick) pan -= hi << 2;
1105 }
1106 if(pan > 255) pan = 255;
1107 if(pan < 0) pan = 0;
1108 a->panning = /*pf->panning[mp_channel] =*/ pan;
1109 }
1110
1111
1112 static void DoITVibrato(void)
1113 {
1114 UBYTE q;
1115 UWORD temp;
1116
1117 q = (a->vibpos>>2)&0x1f;
1118
1119 switch(a->wavecontrol&3)
1120 { case 0: // sine
1121 temp=VibratoTable[q];
1122 break;
1123
1124 case 1: // ramp down
1125 q<<=3;
1126 if(a->vibpos<0) q=255-q;
1127 temp=q;
1128 break;
1129
1130 case 2: // square wave
1131 temp=255;
1132 break;
1133
1134 case 3: // evil random
1135 temp = rand() & 255; // (range 0 to 255)
1136 break;
1137 }
1138
1139 temp*=a->vibdepth;
1140 temp>>=8;
1141 temp<<=2;
1142
1143 if(a->vibpos>=0)
1144 a->period = a->tmpperiod+temp;
1145 else
1146 a->period = a->tmpperiod-temp;
1147
1148 a->vibpos+=a->vibspd;
1149 }
1150
1151
1152 static void DoITFineVibrato(void)
1153 {
1154 UBYTE q;
1155 UWORD temp;
1156
1157 q = (a->vibpos>>2)&0x1f;
1158
1159 switch(a->wavecontrol&3)
1160 { case 0: // sine
1161 temp=VibratoTable[q];
1162 break;
1163
1164 case 1: // ramp down
1165 q<<=3;
1166 if(a->vibpos<0) q = 255-q;
1167 temp = q;
1168 break;
1169
1170 case 2: // square wave
1171 temp = 255;
1172 break;
1173
1174 case 3: // evil random
1175 temp = rand() & 255; // (range 0 to 255)
1176 break;
1177 }
1178
1179 temp*=a->vibdepth;
1180 temp>>=8;
1181
1182 if(a->vibpos>=0)
1183 a->period = a->tmpperiod+temp;
1184 else
1185 a->period = a->tmpperiod-temp;
1186
1187 a->vibpos+=a->vibspd;
1188 }
1189
1190
1191 static void DoITTremor(UBYTE inf)
1192 {
1193 UBYTE on,off;
1194
1195 if(inf!=0) a->s3mtronof = inf;
1196 else inf = a->s3mtronof;
1197
1198 if(!pf->vbtick) return;
1199
1200 on=(inf>>4);
1201 off=(inf&0xf);
1202
1203 a->s3mtremor%=(on+off);
1204 a->volume = (a->s3mtremor < on ) ? a->tmpvolume : 0;
1205 a->s3mtremor++;
1206 }
1207
1208
1209 static void DoITPanbrello(void)
1210 {
1211 UBYTE q;
1212 static SLONG temp;
1213
1214 q = a->panbpos;
1215
1216 switch(a->panbwave)
1217 { case 0: // sine
1218 temp = PanbrelloTable[q];
1219 break;
1220
1221 // only sinewave is correctly supported right now
1222
1223 case 1: // ramp down
1224 q<<=3;
1225 temp = q;
1226 break;
1227
1228 case 2: // square wave
1229 temp = 64;
1230 break;
1231
1232 case 3: // evil random
1233 if(a->panbpos >= a->panbspd)
1234 { a->panbpos = 0;
1235 temp = rand() & 255;
1236 }
1237 }
1238
1239 temp*=a->panbdepth;
1240 temp/=8;
1241
1242 a->panning = pf->panning[mp_channel] + temp;
1243 a->panbpos += a->panbspd;
1244 }
1245
1246
1247 static void DoITToneSlide(void)
1248 {
1249 int dist;
1250
1251 if(a->period == 0) return;
1252
1253 if(!pf->vbtick)
1254 { a->tmpperiod = a->period;
1255 return;
1256 }
1257
1258 // We have to slide a->period towards a->wantedperiod,
1259 // compute the difference between those two values
1260
1261 dist = a->period - a->wantedperiod;
1262
1263 if( (dist == 0) || // if they are equal
1264 ((a->slidespeed<<2) > abs(dist)) ) // or if portamentospeed is too big
1265 { a->period = a->wantedperiod; // make tmpperiod equal tperiod
1266 } else if(dist > 0) // dist>0 ?
1267 { a->period -= a->slidespeed << 2; // then slide up
1268 } else
1269 { a->period += a->slidespeed << 2; // dist<0 -> slide down
1270 }
1271 a->tmpperiod = a->period;
1272 }
1273
1274
1275 static void DoSSEffects(UBYTE dat)
1276
1277 // Impulse/Scream Tracker Sxx effects.
1278 // All Sxx effects share the same memory space.
1279
1280 {
1281 UBYTE inf,c;
1282
1283 inf = dat&0xf;
1284 c = dat>>4;
1285
1286 if(dat==0)
1287 { c = a->sseffect;
1288 inf = a->ssdata;
1289 } else
1290 { a->sseffect = c;
1291 a->ssdata = inf;
1292 }
1293
1294 switch(c)
1295 { case SS_GLISSANDO: // S1x set glissando voice
1296 DoEEffects(0x30|inf);
1297 break;
1298
1299 case SS_FINETUNE: // S2x set finetune
1300 DoEEffects(0x50|inf);
1301 break;
1302
1303 case SS_VIBWAVE: // S3x set vibrato waveform
1304 DoEEffects(0x40|inf);
1305 break;
1306
1307 case SS_TREMWAVE: // S4x set tremolo waveform
1308 DoEEffects(0x70|inf);
1309 break;
1310
1311 case SS_PANWAVE: // The Satanic Panbrello waveform
1312 a->panbwave = (UniGetByte());
1313 break;
1314
1315 case SS_FRAMEDELAY: // S6x Delay x number of frames (patdly)
1316 DoEEffects(0xe0|inf);
1317 break;
1318
1319 case SS_S7EFFECTS: // S7x Instrument / NNA commands
1320 DoNNAEffects(UniGetByte());
1321 break;
1322
1323 case SS_PANNING: // S8x set panning position
1324 DoEEffects(0x80 | inf);
1325 break;
1326
1327 case SS_SURROUND: // S9x Set Surround Sound
1328 a->panning = pf->panning[mp_channel] = PAN_SURROUND;
1329 break;
1330
1331 case SS_HIOFFSET: // SAy Set high order sample offset yxx00h
1332 a->hioffset |= UniGetByte() << 16;
1333 break;
1334
1335 case SS_PATLOOP: // SBx pattern loop
1336 DoEEffects(0x60|inf);
1337 break;
1338
1339 case SS_NOTECUT: // SCx notecut
1340 DoEEffects(0xC0|inf);
1341 break;
1342
1343 case SS_NOTEDELAY: // SDx notedelay
1344 DoEEffects(0xD0|inf);
1345 break;
1346
1347 case SS_PATDELAY: // SEx patterndelay
1348 DoEEffects(0xE0|inf);
1349 break;
1350 }
1351 }
1352
1353
1354 static void DoVolEffects(UBYTE c)
1355
1356 // Impulse Tracker Volume/Pan Column effects.
1357 // All volume/pan column effects share the same memory space.
1358
1359 {
1360 UBYTE inf;
1361
1362 inf = UniGetByte();
1363
1364 if(c==0 && inf==0)
1365 { c = a->voleffect;
1366 inf = a->voldata;
1367 } else
1368 { a->voleffect = c;
1369 a->voldata = inf;
1370 }
1371
1372 switch(c)
1373 { case 0: break; // do nothing
1374 case VOL_VOLUME:
1375 if(pf->vbtick) break;
1376 if(inf>64) inf = 64;
1377 a->tmpvolume = inf;
1378 break;
1379
1380 case VOL_PANNING:
1381 if(pf->panflag)
1382 { a->panning = inf;
1383 pf->panning[mp_channel] = inf;
1384 }
1385 break;
1386
1387 case VOL_VOLSLIDE:
1388 DoS3MVolSlide(inf);
1389 break;
1390
1391 case VOL_PITCHSLIDEDN:
1392 DoS3MSlideDn(UniGetByte());
1393 break;
1394
1395 case VOL_PITCHSLIDEUP:
1396 DoS3MSlideUp(UniGetByte());
1397 break;
1398
1399 case VOL_PORTAMENTO:
1400 if(inf != 0) a->slidespeed = inf;
1401
1402 if(a->period != 0)
1403 { if(!(pf->vbtick==pf->sngspd-1) && (a->newsamp))
1404 { a->kick = 1;
1405 a->start = -1;
1406 //a->period *= a->speed * a->newsamp;
1407 } else
1408 a->kick = 0;
1409
1410 DoITToneSlide();
1411 a->ownper = 1;
1412 }
1413 break;
1414
1415 case VOL_VIBRATO:
1416 if(inf & 0x0f) a->vibdepth = inf & 0xf;
1417 if(inf & 0xf0) a->vibspd = (inf & 0xf0) >> 2;
1418 DoITVibrato();
1419 a->ownper = 1;
1420 break;
1421 }
1422 }
1423
1424
1425
1426 // --------------------------------
1427 // --> General Player Functions <--
1428 // --------------------------------
1429
1430 static void pt_playeffects(void)
1431 {
1432 UBYTE dat,c;
1433
1434 while(c = UniGetByte())
1435 switch(c)
1436 { case UNI_NOTE:
1437 case UNI_INSTRUMENT:
1438 UniSkipOpcode(c);
1439 break;
1440
1441 case UNI_PTEFFECT0:
1442 DoPTEffect0(UniGetByte());
1443 break;
1444
1445 case UNI_PTEFFECT1:
1446 dat = UniGetByte();
1447 if(dat != 0) a->slidespeed = (UWORD)dat << 2;
1448 if(pf->vbtick) a->tmpperiod -= a->slidespeed;
1449 break;
1450
1451 case UNI_PTEFFECT2:
1452 dat = UniGetByte();
1453 if(dat != 0) a->slidespeed = (UWORD)dat << 2;
1454 if(pf->vbtick) a->tmpperiod += a->slidespeed;
1455 break;
1456
1457 case UNI_PTEFFECT3:
1458 dat = UniGetByte();
1459
1460 if(dat!=0)
1461 { a->portspeed = dat;
1462 a->portspeed <<= 2;
1463 }
1464
1465 if(a->period != 0)
1466 { a->kick = 0; // temp XM fix
1467 DoToneSlide();
1468 a->ownper = 1;
1469 }
1470 break;
1471
1472 case UNI_PTEFFECT4:
1473 dat = UniGetByte();
1474 if(dat & 0x0f) a->vibdepth = dat & 0xf;
1475 if(dat & 0xf0) a->vibspd = (dat & 0xf0) >> 2;
1476 DoVibrato();
1477 a->ownper = 1;
1478 break;
1479
1480 case UNI_PTEFFECT5:
1481 dat = UniGetByte();
1482 a->kick = 0;
1483 DoToneSlide();
1484 DoVolSlide(dat);
1485 a->ownper = 1;
1486 break;
1487
1488 case UNI_PTEFFECT6:
1489 dat = UniGetByte();
1490 DoVibrato();
1491 DoVolSlide(dat);
1492 a->ownper = 1;
1493 break;
1494
1495 case UNI_PTEFFECT7:
1496 dat = UniGetByte();
1497 if(dat & 0x0f) a->trmdepth = dat & 0xf;
1498 if(dat & 0xf0) a->trmspd = (dat & 0xf0) >> 2;
1499 DoTremolo();
1500 a->ownvol = 1;
1501 break;
1502
1503 case UNI_PTEFFECT8:
1504 dat = UniGetByte();
1505 if(pf->panflag)
1506 { a->panning = dat;
1507 pf->panning[mp_channel] = dat;
1508 }
1509 break;
1510
1511 case UNI_PTEFFECT9:
1512 dat = UniGetByte();
1513 if(dat) a->soffset = (UWORD)dat << 8;
1514 a->start = a->hioffset | a->soffset;
1515 if((a->s != NULL) && (a->start > a->s->length)) a->start = a->s->loopstart;
1516 break;
1517
1518 case UNI_PTEFFECTA:
1519 DoVolSlide(UniGetByte());
1520 break;
1521
1522 case UNI_PTEFFECTB:
1523 dat = UniGetByte();
1524 if(pf->patdly2) break;
1525 pf->patbrk = 0;
1526 pf->sngpos = dat-1;
1527 pf->posjmp = 3;
1528 break;
1529
1530 case UNI_PTEFFECTC:
1531 dat = UniGetByte();
1532 if(pf->vbtick) break;
1533 if(dat>64) dat = 64;
1534 a->tmpvolume = dat;
1535 break;
1536
1537 case UNI_PTEFFECTD:
1538 dat = UniGetByte();
1539 if(pf->patdly2) break;
1540 pf->patbrk = dat;
1541 if(pf->patbrk>pf->pattrows[mp_channel])
1542 pf->patbrk = pf->pattrows[mp_channel];
1543 pf->posjmp = 3;
1544 break;
1545
1546 case UNI_PTEFFECTE:
1547 DoEEffects(UniGetByte());
1548 break;
1549
1550 case UNI_PTEFFECTF:
1551 dat = UniGetByte();
1552
1553 if(pf->vbtick || pf->patdly2) break;
1554
1555 if(pf->extspd && (dat >= 0x20))
1556 pf->bpm = dat;
1557 else
1558 { if(dat)
1559 { pf->sngspd = dat;
1560 pf->vbtick = 0;
1561 }
1562 }
1563 break;
1564
1565 case UNI_S3MEFFECTA:
1566 DoS3MSpeed(UniGetByte());
1567 break;
1568
1569 case UNI_S3MEFFECTD:
1570 DoS3MVolSlide(UniGetByte());
1571 break;
1572
1573 case UNI_S3MEFFECTE:
1574 DoS3MSlideDn(UniGetByte());
1575 break;
1576
1577 case UNI_S3MEFFECTF:
1578 DoS3MSlideUp(UniGetByte());
1579 break;
1580
1581 case UNI_S3MEFFECTI:
1582 DoS3MTremor(UniGetByte());
1583 a->ownvol = 1;
1584 break;
1585
1586 case UNI_S3MEFFECTQ:
1587 DoS3MRetrig(UniGetByte());
1588 break;
1589
1590 case UNI_S3MEFFECTR:
1591 dat = UniGetByte();
1592 if(dat & 0x0f) a->trmdepth = dat & 0xf;
1593 if(dat & 0xf0) a->trmspd = (dat & 0xf0) >> 2;
1594 DoS3MTremolo();
1595 a->ownvol = 1;
1596 break;
1597
1598 case UNI_S3MEFFECTT:
1599 DoS3MTempo(UniGetByte());
1600 break;
1601
1602 case UNI_S3MEFFECTU:
1603 dat = UniGetByte();
1604 if(dat & 0x0f) a->vibdepth = dat & 0xf;
1605 if(dat & 0xf0) a->vibspd = (dat & 0xf0) >> 2;
1606 DoS3MFineVibrato();
1607 a->ownper = 1;
1608 break;
1609
1610 case UNI_KEYOFF:
1611 a->keyoff |= KEY_OFF;
1612 if(a->i != NULL)
1613 { if(!(a->i->volflg & EF_ON) || (a->i->volflg & EF_LOOP))
1614 a->keyoff = KEY_KILL;
1615 }
1616 break;
1617
1618 case UNI_KEYFADE:
1619 if(pf->vbtick >= UniGetByte())
1620 { a->keyoff = KEY_KILL;
1621 if((a->i != NULL) && !(a->i->volflg & EF_ON))
1622 a->fadevol = 0;
1623 }
1624 break;
1625
1626 case UNI_VOLEFFECTS:
1627 DoVolEffects(UniGetByte());
1628 break;
1629
1630 case UNI_XMEFFECT4:
1631 dat = UniGetByte();
1632 if(pf->vbtick)
1633 { if(dat & 0x0f) a->vibdepth = dat & 0xf;
1634 if(dat & 0xf0) a->vibspd = (dat & 0xf0) >> 2;
1635 }
1636 DoVibrato();
1637 a->ownper = 1;
1638 break;
1639
1640 case UNI_XMEFFECTA:
1641 DoXMVolSlide(UniGetByte());
1642 break;
1643
1644 case UNI_XMEFFECTE1: // xm fineslide up
1645 dat = UniGetByte();
1646 if(!pf->vbtick)
1647 { if(dat) a->fportupspd = dat; else dat = a->fportupspd;
1648 a->tmpperiod -= (dat << 2);
1649 }
1650 break;
1651
1652 case UNI_XMEFFECTE2: // xm fineslide dn
1653 dat = UniGetByte();
1654 if(!pf->vbtick)
1655 { if(dat) a->fportdnspd = dat; else dat = a->fportdnspd;
1656 a->tmpperiod += (dat<<2);
1657 }
1658 break;
1659
1660 case UNI_XMEFFECTEA: // fine volume slide up
1661 dat = UniGetByte();
1662 if(pf->vbtick) break;
1663 if(dat) a->fslideupspd = dat; else dat = a->fslideupspd;
1664 a->tmpvolume+=dat;
1665 if(a->tmpvolume>64) a->tmpvolume = 64;
1666 break;
1667
1668 case UNI_XMEFFECTEB: // fine volume slide dn
1669 dat = UniGetByte();
1670 if(pf->vbtick) break;
1671 if(dat) a->fslidednspd = dat; else dat = a->fslidednspd;
1672 a->tmpvolume-=dat;
1673 if(a->tmpvolume<0) a->tmpvolume = 0;
1674 break;
1675
1676 case UNI_XMEFFECTG:
1677 pf->volume = UniGetByte();
1678 break;
1679
1680 case UNI_XMEFFECTH:
1681 DoXMGlobalSlide(UniGetByte());
1682 break;
1683
1684 case UNI_XMEFFECTL:
1685 dat = UniGetByte();
1686 if(!pf->vbtick && a->i!=NULL)
1687 { UWORD points;
1688 INSTRUMENT *i = a->i;
1689 MP_VOICE *aout;
1690
1691 if((aout = a->slave) != NULL)
1692 { points = i->volenv[i->volpts-1].pos;
1693 aout->venv.p = aout->venv.env[(dat>points) ? points : dat].pos;
1694
1695 points = i->panenv[i->panpts-1].pos;
1696 aout->penv.p = aout->penv.env[(dat>points) ? points : dat].pos;
1697 }
1698 }
1699 break;
1700
1701 case UNI_XMEFFECTP:
1702 DoXMPanSlide(UniGetByte());
1703 break;
1704
1705 case UNI_XMEFFECTX1:
1706 DoXMExtraFineSlideUp(UniGetByte());
1707 a->ownper = 1;
1708 break;
1709
1710 case UNI_XMEFFECTX2:
1711 DoXMExtraFineSlideDown(UniGetByte());
1712 a->ownper = 1;
1713 break;
1714
1715 case UNI_ITEFFECTG:
1716 dat = UniGetByte();
1717 if(dat != 0) a->slidespeed = dat;
1718
1719 if(a->period != 0)
1720 { if((pf->vbtick < 1) && (a->newsamp))
1721 { a->kick = 1;
1722 a->start = -1;
1723 //a->period *= a->speed * a->newsamp;
1724 } else
1725 a->kick = 0;
1726
1727 DoITToneSlide();
1728 a->ownper = 1;
1729 }
1730 break;
1731
1732 case UNI_ITEFFECTH: // it vibrato
1733 dat = UniGetByte();
1734 if(dat & 0x0f) a->vibdepth = dat & 0xf;
1735 if(dat & 0xf0) a->vibspd = (dat & 0xf0) >> 2;
1736 DoITVibrato();
1737 a->ownper = 1;
1738 break;
1739
1740 case UNI_ITEFFECTI: // it tremor
1741 DoITTremor(UniGetByte());
1742 a->ownvol = 1;
1743 break;
1744
1745 case UNI_ITEFFECTM:
1746 a->chanvol = UniGetByte();
1747 if(a->chanvol > 64) a->chanvol = 64;
1748 else if(a->chanvol < 0) a->chanvol = 0;
1749 break;
1750
1751 case UNI_ITEFFECTN: // Slide / Fineslide Channel Volume
1752 DoITChanVolSlide(UniGetByte());
1753 break;
1754
1755 case UNI_ITEFFECTP: // slide / fineslide channel panning
1756 DoITPanSlide(UniGetByte());
1757 break;
1758
1759 case UNI_ITEFFECTU: // fine vibrato
1760 dat = UniGetByte();
1761 if(dat & 0x0f) a->vibdepth = dat & 0xf;
1762 if(dat & 0xf0) a->vibspd = (dat & 0xf0) >> 2;
1763 DoITFineVibrato();
1764 a->ownper = 1;
1765 break;
1766
1767 case UNI_ITEFFECTW: // Slide / Fineslide Global volume
1768 DoITGlobalSlide(UniGetByte());
1769 break;
1770
1771 case UNI_ITEFFECTY: // The Satanic Panbrello
1772 dat = UniGetByte();
1773 if(dat & 0x0f) a->panbdepth = (dat & 0xf);
1774 if(dat & 0xf0) a->panbspd = (dat & 0xf0) >> 4;
1775 DoITPanbrello();
1776 break;
1777
1778 case UNI_ITEFFECTS0:
1779 DoSSEffects(UniGetByte());
1780 break;
1781
1782 default:
1783 UniSkipOpcode(c);
1784 break;
1785 }
1786 }
1787
1788
1789 static void DoNNAEffects(UBYTE dat)
1790 {
1791 int t;
1792 MP_VOICE *aout;
1793
1794 dat &= 0xf;
1795 aout = (a->slave==NULL) ? &aout_dummy : a->slave;
1796
1797 switch(dat)
1798 { case 0x0: // Past note cut
1799 for(t=0; t<md_sngchn; t++)
1800 if(pf->voice[t].master == a)
1801 pf->voice[t].fadevol = 0;
1802 break;
1803
1804 case 0x1: // Past note off
1805 for(t=0; t<md_sngchn; t++)
1806 if(pf->voice[t].master == a)
1807 { pf->voice[t].keyoff |= KEY_OFF;
1808 if(!(pf->voice[t].venv.flg & EF_ON))
1809 pf->voice[t].keyoff = KEY_KILL;
1810 }
1811 break;
1812
1813 case 0x2: // Past note fade
1814 for(t=0; t<md_sngchn; t++)
1815 if(pf->voice[t].master == a)
1816 pf->voice[t].keyoff |= KEY_FADE;
1817 break;
1818
1819 case 0x3: // set NNA note cut
1820 a->nna = (a->nna & ~0x3f) | NNA_CUT;
1821 break;
1822
1823 case 0x4: // set NNA note continue
1824 a->nna = (a->nna & ~0x3f) | NNA_CONTINUE;
1825 break;
1826
1827 case 0x5: // set NNA note off
1828 a->nna = (a->nna & ~0x3f) | NNA_OFF;
1829 break;
1830
1831 case 0x6: // set NNA note fade
1832 a->nna = (a->nna & ~0x3f) | NNA_FADE;
1833 break;
1834
1835 case 0x7: // disable volume envelope
1836 aout->volflg &= ~EF_ON;
1837 break;
1838
1839 case 0x8: // enable volume envelope
1840 aout->volflg |= EF_ON;
1841 break;
1842
1843 case 0x9: // disable panning envelope
1844 aout->panflg &= ~EF_ON;
1845 break;
1846
1847 case 0xa: // enable panning envelope
1848 aout->panflg |= EF_ON;
1849 break;
1850
1851 case 0xb: // disable pitch envelope
1852 aout->pitflg &= ~EF_ON;
1853 break;
1854
1855 case 0xc: // enable pitch envelope
1856 aout->pitflg |= EF_ON;
1857 break;
1858 }
1859 }
1860
1861
1862 void Player_HandleTick(void)
1863 {
1864 MP_VOICE *aout; // current audout (slave of audtmp) it's working on
1865 int t, tr, t2, k;
1866 ULONG tmpvol, period;
1867 UBYTE c;
1868 BOOL funky;
1869 SAMPLE *s;
1870 INSTRUMENT *i;
1871
1872 if(isfirst)
1873 { // don't handle the very first ticks, this allows the
1874 // other hardware to settle down so we don't loose any
1875 // starting notes
1876 isfirst--;
1877 return;
1878 }
1879
1880 if(pf==NULL || pf->forbid) return;
1881
1882 if(++pf->vbtick >= pf->sngspd)
1883 { pf->patpos++;
1884 pf->vbtick = 0;
1885
1886 // process pattern-delay. pf->patdly2 is the counter and pf->patdly
1887 // is the command memory.
1888
1889 if(pf->patdly)
1890 { pf->patdly2 = pf->patdly;
1891 pf->patdly = 0;
1892 }
1893
1894 if(pf->patdly2)
1895 { // patterndelay active
1896 if(--pf->patdly2) pf->patpos--; // so turn back pf->patpos by 1
1897 }
1898
1899 // Do we have to get a new patternpointer ?
1900 // (when pf->patpos reaches 64 or when
1901 // a patternbreak is active)
1902
1903 if(pf->patpos == pf->numrow) pf->posjmp = 3;
1904
1905 if(pf->posjmp)
1906 { pf->patpos = pf->patbrk;
1907 pf->sngpos+=(pf->posjmp-2);
1908 pf->patbrk = pf->posjmp = 0;
1909 if(pf->sngpos>=pf->numpos)
1910 { if(!pf->loop) return;
1911 if((pf->sngpos = pf->reppos) == 0)
1912 { pf->volume = pf->initvolume;
1913 pf->sngspd = pf->initspeed;
1914 pf->bpm = pf->inittempo;
1915 }
1916 }
1917 if(pf->sngpos<0) pf->sngpos = pf->numpos-1;
1918 }
1919
1920 if(!pf->patdly2)
1921 { for(t=0; t<pf->numchn; t++)
1922 { UBYTE inst;
1923
1924 tr = pf->patterns[(pf->positions[pf->sngpos]*pf->numchn)+t];
1925 pf->numrow = pf->pattrows[pf->positions[pf->sngpos]];
1926
1927 mp_channel = t;
1928 a = &pf->control[t];
1929 a->row = (tr < pf->numtrk) ? UniFindRow(pf->tracks[tr],pf->patpos) : NULL;
1930 a->newsamp = 0;
1931
1932 if(a->row==NULL) continue;
1933 UniSetRow(a->row);
1934 funky = 0; // Funky is set to indicate note or inst change
1935
1936 while(c = UniGetByte())
1937 { switch(c)
1938 { case UNI_NOTE:
1939 funky |= 1;
1940 a->anote = UniGetByte();
1941 a->kick = 1;
1942 a->start = -1;
1943
1944 // retrig tremolo and vibrato waves ?
1945
1946 if(!(a->wavecontrol & 0x80)) a->trmpos = 0;
1947 if(!(a->wavecontrol & 0x08)) a->vibpos = 0;
1948 if(!a->panbwave) a->panbpos = 0;
1949 break;
1950
1951 case UNI_INSTRUMENT:
1952 funky |= 2;
1953 inst = UniGetByte();
1954 if(inst >= pf->numins) break; // <- safety valve
1955
1956 a->i = (pf->flags & UF_INST) ? &pf->instruments[inst] : NULL;
1957 a->retrig = 0;
1958 a->s3mtremor = 0;
1959 a->sample = inst;
1960 break;
1961
1962 default:
1963 UniSkipOpcode(c);
1964 break;
1965 }
1966 }
1967
1968 if(funky)
1969 { i = a->i;
1970 if(i != NULL)
1971 { if(i->samplenumber[a->anote] >= pf->numsmp) continue;
1972 s = &pf->samples[i->samplenumber[a->anote]];
1973 a->note = i->samplenote[a->anote];
1974 } else
1975 { a->note = a->anote;
1976 s = &pf->samples[a->sample];
1977 }
1978
1979 if(a->s != s)
1980 { a->s = s;
1981 a->newsamp = a->period;
1982 }
1983
1984 // channel or instrument determined panning ?
1985
1986 a->panning = pf->panning[t];
1987 if(s->flags & SF_OWNPAN)
1988 a->panning = s->panning;
1989 else if((i != NULL) && (i->flags & IF_OWNPAN))
1990 a->panning = i->panning;
1991
1992 a->handle = s->handle;
1993 a->speed = s->speed;
1994
1995 if(i != NULL)
1996 { if(i->flags & IF_PITCHPAN)
1997 a->panning += ((a->anote-i->pitpancenter) * i->pitpansep) / 8;
1998 a->pitflg = i->pitflg;
1999 a->volflg = i->volflg;
2000 a->panflg = i->panflg;
2001 a->nna = i->nnatype;
2002 a->dca = i->dca;
2003 a->dct = i->dct;
2004 } else
2005 { a->pitflg = 0;
2006 a->volflg = 0;
2007 a->panflg = 0;
2008 a->nna = 0;
2009 a->dca = 0;
2010 a->dct = 0;
2011 }
2012
2013 if(funky & 2)
2014 { // IT's random volume variations: 0:8 bit fixed, and one bit for sign.
2015 a->volume = s->volume;
2016 a->tmpvolume = s->volume;
2017 if((s != NULL) && (i != NULL))
2018 { a->volume = a->tmpvolume = s->volume + ((s->volume * ((SLONG)i->rvolvar * (SLONG)((rand() & 511)-255))) / 25600);
2019 if(a->panning != PAN_SURROUND) a->panning += ((a->panning * ((SLONG)i->rpanvar * (SLONG)((rand() & 511)-255))) / 25600);
2020 }
2021 }
2022
2023 period = GetPeriod(a->note, a->speed);
2024 a->wantedperiod = period;
2025 a->tmpperiod = period;
2026 a->keyoff = KEY_KICK;
2027 }
2028 }
2029 }
2030 }
2031
2032 // Update effects
2033
2034 for(t=0; t<pf->numchn; t++)
2035 { mp_channel = t;
2036 a = &pf->control[t];
2037
2038 if((aout = a->slave) != NULL)
2039 { a->fadevol = aout->fadevol;
2040 a->period = aout->period;
2041 if(a->kick != 1) a->keyoff = aout->keyoff;
2042 }
2043
2044 if(a->row == NULL) continue;
2045 UniSetRow(a->row);
2046
2047 a->ownper = a->ownvol = 0;
2048 pt_playeffects();
2049 if(!a->ownper) a->period = a->tmpperiod;
2050 if(!a->ownvol) a->volume = a->tmpvolume;
2051
2052 if(a->s != NULL)
2053 { if(a->i != NULL)
2054 a->outvolume = (a->volume * a->s->globvol * a->i->globvol) / 1024; // max val: 256
2055 else
2056 a->outvolume = (a->volume * a->s->globvol) / 16; // max val: 256
2057 if(a->outvolume > 256) a->volume = 256;
2058 }
2059 }
2060
2061
2062 a = pf->control;
2063 if(pf->flags & UF_NNA)
2064 { for(t=0; t<pf->numchn; t++, a++)
2065 { if(a->kick == 1)
2066 { if(a->slave != NULL)
2067 { aout = a->slave;
2068 if(aout->nna & 0x3f)
2069 { // oh boy, we have to do an NNA
2070 // Make sure the old MP_VOICE channel knows it has no master now!
2071
2072 a->slave = NULL; // assume the channel is taken by NNA
2073 aout->mflag = 0;
2074
2075 switch(aout->nna)
2076 { case NNA_CONTINUE:
2077 break; // continue note, do nothing
2078
2079 case NNA_OFF: // note off
2080 aout->keyoff |= KEY_OFF;
2081 if(!(aout->volflg & EF_ON) || (aout->volflg & EF_LOOP))
2082 aout->keyoff = KEY_KILL;
2083 break;
2084
2085 case NNA_FADE:
2086 aout->keyoff |= KEY_FADE;
2087 break;
2088 }
2089 }
2090 }
2091
2092 k = 0;
2093 if(a->dct != DCT_OFF)
2094 { for(t2=0; t2<md_sngchn; t2++)
2095 { if(!(Voice_Stopped(t2)) && (pf->voice[t2].masterchn == t) && (a->sample == pf->voice[t2].sample))
2096 { switch(a->dct)
2097 { case DCT_NOTE:
2098 if(a->note == pf->voice[t2].note)
2099 k = 1;
2100 break;
2101
2102 case DCT_SAMPLE:
2103 if(a->handle == pf->voice[t2].handle)
2104 k = 1;
2105 break;
2106
2107 case DCT_INST:
2108 k = 1;
2109 break;
2110 }
2111
2112 if(k==1)
2113 { k = 0;
2114 switch(a->dca)
2115 { case DCA_CUT :
2116 pf->voice[t2].fadevol = 0;
2117 a->slave = &pf->voice[a->slavechn=t2];
2118 break;
2119
2120 case DCA_OFF :
2121 //a->slave = &pf->voice[newchn];
2122 pf->voice[t2].keyoff |= KEY_OFF;
2123 if(!(pf->voice[t2].volflg & EF_ON) || (pf->voice[t2].volflg & EF_LOOP))
2124 pf->voice[t2].keyoff = KEY_KILL;
2125 break;
2126
2127 case DCA_FADE:
2128 //a->slave = &pf->voice[newchn];
2129 pf->voice[t2].keyoff |= KEY_FADE;
2130 break;
2131 }
2132 }
2133 }
2134 }
2135 } // DCT checking
2136 } // if a->kick
2137 } // for loop
2138 }
2139
2140 a = pf->control;
2141 for(t=0; t<pf->numchn; t++, a++)
2142 { int newchn;
2143
2144 if(a->notedelay) continue;
2145
2146 if(a->kick == 1)
2147 { // If no channel was cut above, find an empty or quiet channel here
2148 if(pf->flags & UF_NNA)
2149 { if(a->slave==NULL)
2150 { if((newchn = MP_FindEmptyChannel(t)) != -1)
2151 a->slave = &pf->voice[a->slavechn=newchn];
2152 }
2153 } else
2154 a->slave = &pf->voice[a->slavechn=t];
2155
2156 // Assign parts of MP_VOICE only done for a KICK!
2157
2158 if((aout = a->slave) != NULL)
2159 { if(aout->mflag && (aout->master!=NULL)) aout->master->slave = NULL;
2160 a->slave = aout;
2161 aout->master = a;
2162 aout->masterchn = t;
2163 aout->mflag = 1;
2164 }
2165 } else
2166 { aout = a->slave;
2167 }
2168
2169 if(aout != NULL)
2170 { aout->kick = a->kick;
2171 aout->i = a->i;
2172 aout->s = a->s;
2173 aout->sample = a->sample;
2174 aout->handle = a->handle;
2175 aout->period = a->period;
2176 aout->panning = a->panning;
2177 aout->chanvol = a->chanvol;
2178 aout->fadevol = a->fadevol;
2179 aout->start = a->start;
2180 aout->volflg = a->volflg;
2181 aout->panflg = a->panflg;
2182 aout->pitflg = a->pitflg;
2183 aout->volume = a->outvolume;
2184 aout->keyoff = a->keyoff;
2185 aout->note = a->note;
2186 aout->nna = a->nna;
2187 }
2188 a->kick = 0;
2189
2190 }
2191
2192 // Now set up the actual hardware channel playback information
2193
2194 for(t=0; t<md_sngchn; t++)
2195 { SWORD envpan, envvol = 256, envpit = 0;
2196 SLONG vibval, vibdpt;
2197
2198 aout = &pf->voice[mp_channel = t];
2199 i = aout->i;
2200 s = aout->s;
2201
2202 if(s==NULL) continue;
2203
2204 if(aout->period < 40) aout->period = 40;
2205 if(aout->period > 50000) aout->period = 50000;
2206
2207 if(aout->kick)
2208 { Voice_Play(t,s,(aout->start == -1) ? ((s->flags & SF_UST_LOOP) ? s->loopstart : 0) : aout->start);
2209 //aout->keyoff = KEY_KICK;
2210 aout->fadevol = 32768;
2211 aout->aswppos = 0;
2212
2213 if((i != NULL) && (aout->kick != 2))
2214 { StartEnvelope(&aout->venv, aout->volflg, i->volpts, i->volsusbeg, i->volsusend, i->volbeg, i->volend, i->volenv, aout->keyoff);
2215 StartEnvelope(&aout->penv, aout->panflg, i->panpts, i->pansusbeg, i->pansusend, i->panbeg, i->panend, i->panenv, aout->keyoff);
2216 StartEnvelope(&aout->cenv, aout->pitflg, i->pitpts, i->pitsusbeg, i->pitsusend, i->pitbeg, i->pitend, i->pitenv, aout->keyoff);
2217 }
2218 aout->kick = 0;
2219 }
2220
2221 if(i != NULL)
2222 { envvol = ProcessEnvelope(&aout->venv,256,aout->keyoff);
2223 envpan = ProcessEnvelope(&aout->penv,128,aout->keyoff);
2224 envpit = ProcessEnvelope(&aout->cenv,32,aout->keyoff);
2225 }
2226
2227 tmpvol = aout->fadevol; // max 32768
2228 tmpvol *= aout->chanvol; // * max 64
2229 tmpvol *= aout->volume; // * max 256
2230 tmpvol /= 16384L; // tmpvol is max 32768
2231 aout->totalvol = tmpvol>>2; // totalvolume used to determine samplevolume
2232 tmpvol *= envvol; // * max 256
2233 tmpvol *= pf->volume; // * max 128
2234 tmpvol /= 4194304UL;
2235
2236 if((aout->masterchn != -1) && pf->control[aout->masterchn].muted) // Channel Muting Line
2237 Voice_SetVolume(t,0);
2238 else
2239 Voice_SetVolume(t,tmpvol);
2240
2241
2242 if(aout->panning == PAN_SURROUND)
2243 Voice_SetPanning(t, PAN_SURROUND);
2244 else
2245 { if(aout->penv.flg & EF_ON)
2246 Voice_SetPanning(t,DoPan(envpan,aout->panning));
2247 else
2248 Voice_SetPanning(t,aout->panning);
2249 }
2250
2251 if(aout->period && s->vibdepth)
2252 { switch(s->vibtype)
2253 { case 0:
2254 vibval = avibtab[s->avibpos & 127];
2255 if(s->avibpos & 0x80) vibval=-vibval;
2256 break;
2257
2258 case 1:
2259 vibval = 64;
2260 if(s->avibpos & 0x80) vibval=-vibval;
2261 break;
2262
2263 case 2:
2264 vibval = 63-(((s->avibpos + 128) & 255) >> 1);
2265 break;
2266
2267 case 3:
2268 vibval = (((s->avibpos + 128) & 255) >> 1) - 64;
2269 break;
2270 }
2271 }
2272
2273 if(s->vibflags & AV_IT)
2274 { if((aout->aswppos >> 8) < s->vibdepth)
2275 { aout->aswppos += s->vibsweep;
2276 vibdpt = aout->aswppos;
2277 } else
2278 vibdpt = s->vibdepth << 8;
2279 vibval = (vibval*vibdpt) >> 16;
2280 if(aout->mflag)
2281 { if(!(pf->flags & UF_LINEAR)) vibval>>=1;
2282 aout->period -= vibval;
2283 }
2284 } else // do XM style auto-vibrato
2285 { if(!(aout->keyoff & KEY_OFF))
2286 { if(aout->aswppos < s->vibsweep)
2287 { vibdpt = (aout->aswppos*s->vibdepth) / s->vibsweep;
2288 aout->aswppos++;
2289 } else
2290 vibdpt = s->vibdepth;
2291 } else
2292 { // key-off -> depth becomes 0 if final depth wasn't reached
2293 // or stays at final level if depth WAS reached
2294 if(aout->aswppos>=s->vibsweep)
2295 vibdpt = s->vibdepth;
2296 else
2297 vibdpt = 0;
2298 }
2299 vibval = (vibval*vibdpt)>>8;
2300 aout->period -= vibval;
2301 }
2302
2303 // update vibrato position
2304 s->avibpos = (s->avibpos+s->vibrate) & 0xff;
2305
2306 if(aout->cenv.flg & EF_ON)
2307 { envpit = envpit-32;
2308 aout->period -= envpit;
2309 }
2310
2311 Voice_SetFrequency(t,getfrequency(pf->flags,aout->period));
2312
2313 if(aout->fadevol == 0) // check for a dead note (fadevol = 0)
2314 Voice_Stop(t);
2315 else
2316 { // if keyfade, start substracting
2317 // fadeoutspeed from fadevol:
2318
2319 if((i != NULL) && (aout->keyoff & KEY_FADE))
2320 { if(aout->fadevol >= i->volfade)
2321 aout->fadevol -= i->volfade;
2322 else
2323 aout->fadevol = 0;
2324 }
2325 }
2326
2327 MD_SetBPM(pf->bpm);
2328 }
2329 }
2330
2331
2332 BOOL Player_Init(UNIMOD *mf)
2333 {
2334 int t;
2335
2336 mf->extspd = 1;
2337 mf->panflag = 1;
2338 mf->loop = 0;
2339
2340 mf->pat_reppos = 0;
2341 mf->pat_repcnt = 0;
2342 mf->sngpos = 0;
2343 mf->sngspd = mf->initspeed;
2344 mf->volume = mf->initvolume;
2345
2346 mf->vbtick = mf->sngspd;
2347 mf->patdly = 0;
2348 mf->patdly2 = 0;
2349 mf->bpm = mf->inittempo;
2350
2351 mf->patpos = 0;
2352 mf->posjmp = 2; // <- make sure the player fetches the first note
2353 mf->patbrk = 0;
2354
2355 // Make sure the player doesn't start with garbage:
2356
2357 if((mf->control=(MP_CONTROL *)_mm_calloc(mf->numchn,sizeof(MP_CONTROL)))==NULL) return 1;
2358 if((mf->voice=(MP_VOICE *)_mm_calloc(md_sngchn,sizeof(MP_VOICE)))==NULL) return 1;
2359
2360 for(t=0; t<mf->numchn; t++)
2361 { mf->control[t].chanvol = mf->chanvol[t];
2362 mf->control[t].panning = mf->panning[t];
2363 }
2364
2365 return 0;
2366 }
2367
2368
2369 void Player_Exit(UNIMOD *mf)
2370 {
2371 if(mf==NULL) return;
2372 if(mf==pf)
2373 { Player_Stop();
2374 pf = NULL;
2375 }
2376 if(mf->control!=NULL) free(mf->control);
2377 if(mf->voice!=NULL) free(mf->voice);
2378 mf->control = NULL;
2379 mf->voice = NULL;
2380
2381 }
2382
2383
2384 void Player_SetVolume(int volume)
2385 {
2386 if(pf==NULL) return;
2387
2388 if(volume > 128) volume = 128;
2389 if(volume < 0) volume = 0;
2390
2391 pf->volume = volume;
2392 }
2393
2394
2395 UNIMOD *Player_GetUnimod(void)
2396 {
2397 return pf;
2398 }
2399
2400
2401 void Player_Start(UNIMOD *mf)
2402 {
2403 int t;
2404
2405 if(!MikMod_Active())
2406 { isfirst = 2;
2407 MikMod_EnableOutput();
2408 }
2409
2410 if(mf==NULL) return;
2411
2412 mf->forbid = 0;
2413 if(pf != mf)
2414 { // new song is being started, so completely stop out the old one.
2415 if(pf!=NULL) pf->forbid = 1;
2416 for(t=0; t<md_sngchn; t++) Voice_Stop(t);
2417 }
2418
2419 pf = mf;
2420 }
2421
2422
2423 void Player_Stop(void)
2424 {
2425 if(md_sfxchn==0) MikMod_DisableOutput();
2426 if(pf != NULL) pf->forbid = 1;
2427 pf = NULL;
2428 }
2429
2430
2431 BOOL MP_Playing(UNIMOD *mf)
2432 {
2433 if((mf==NULL) || (mf!=pf)) return 0;
2434 return(!(mf->sngpos>=mf->numpos));
2435 }
2436
2437
2438 BOOL Player_Active(void)
2439 {
2440 if(pf==NULL) return 0;
2441 return(!(pf->sngpos>=pf->numpos));
2442 }
2443
2444
2445 void MP_NextPosition(UNIMOD *mf)
2446 {
2447 int t;
2448
2449 if(mf==NULL) return;
2450 mf->forbid = 1;
2451 mf->posjmp = 3;
2452 mf->patbrk = 0;
2453 mf->vbtick = mf->sngspd;
2454
2455 for(t=0; t<md_sngchn; t++)
2456 { Voice_Stop(t);
2457 mf->voice[t].i = NULL;
2458 mf->voice[t].s = NULL;
2459 }
2460
2461 for(t=0; t<mf->numchn; t++)
2462 { mf->control[t].i = NULL;
2463 mf->control[t].s = NULL;
2464 }
2465 mf->forbid = 0;
2466 }
2467
2468
2469 void Player_NextPosition(void)
2470 {
2471 MP_NextPosition(pf);
2472 }
2473
2474
2475 void MP_PrevPosition(UNIMOD *mf)
2476 {
2477 int t;
2478
2479 if(mf==NULL) return;
2480 mf->forbid = 1;
2481 mf->posjmp = 1;
2482 mf->patbrk = 0;
2483 mf->vbtick = mf->sngspd;
2484
2485 for(t=0; t<md_sngchn; t++)
2486 { Voice_Stop(t);
2487 mf->voice[t].i = NULL;
2488 mf->voice[t].s = NULL;
2489 }
2490
2491 for(t=0; t<mf->numchn; t++)
2492 { mf->control[t].i = NULL;
2493 mf->control[t].s = NULL;
2494 }
2495
2496 mf->forbid = 0;
2497 }
2498
2499
2500 void Player_PrevPosition(void)
2501 {
2502 MP_PrevPosition(pf);
2503 }
2504
2505
2506 void MP_SetPosition(UNIMOD *mf, UWORD pos)
2507 {
2508 int t;
2509
2510 if(mf==NULL) return;
2511 mf->forbid = 1;
2512 if(pos>=mf->numpos) pos = mf->numpos;
2513 mf->posjmp = 2;
2514 mf->patbrk = 0;
2515 mf->sngpos = pos;
2516 mf->vbtick = mf->sngspd;
2517
2518 for(t=0; t<md_sngchn; t++)
2519 { Voice_Stop(t);
2520 mf->voice[t].i = NULL;
2521 mf->voice[t].s = NULL;
2522 }
2523
2524 for(t=0; t<mf->numchn; t++)
2525 { mf->control[t].i = NULL;
2526 mf->control[t].s = NULL;
2527 }
2528
2529 mf->forbid = 0;
2530 }
2531
2532
2533 void Player_SetPosition(UWORD pos)
2534 {
2535 MP_SetPosition(pf,pos);
2536 }
2537
2538
2539 void MP_Unmute(UNIMOD *mf, SLONG arg1, ...)
2540 {
2541 va_list ap;
2542 SLONG t, arg2, arg3;
2543
2544 va_start(ap,arg1);
2545
2546 if(mf != NULL)
2547 { switch(arg1)
2548 { case MUTE_INCLUSIVE:
2549 if((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2550 { va_end(ap);
2551 return;
2552 }
2553 for(;arg2<mf->numchn && arg2<=arg3;arg2++)
2554 mf->control[arg2].muted = 0;
2555 break;
2556
2557 case MUTE_EXCLUSIVE:
2558 if((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2559 { va_end(ap);
2560 return;
2561 }
2562 for(t=0;t<mf->numchn;t++)
2563 { if ((t>=arg2) && (t<=arg3)) continue;
2564 mf->control[t].muted = 0;
2565 }
2566 break;
2567
2568 default:
2569 if(arg1<mf->numchn) mf->control[arg1].muted = 0;
2570 break;
2571 }
2572 }
2573 va_end(ap);
2574
2575 return;
2576 }
2577
2578
2579 void Player_Unmute(SLONG arg1, ...)
2580 {
2581 va_list argptr;
2582 MP_Unmute(pf,arg1, argptr);
2583 va_end(argptr);
2584 }
2585
2586
2587 void MP_Mute(UNIMOD *mf, SLONG arg1, ...)
2588 {
2589 va_list ap;
2590 SLONG t, arg2, arg3;
2591
2592 va_start(ap,arg1);
2593
2594 if(mf != NULL)
2595 { switch (arg1)
2596 { case MUTE_INCLUSIVE:
2597 if ((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2598 { va_end(ap);
2599 return;
2600 }
2601 for(;arg2<mf->numchn && arg2<=arg3;arg2++)
2602 mf->control[arg2].muted = 1;
2603 break;
2604
2605 case MUTE_EXCLUSIVE:
2606 if ((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2607 { va_end(ap);
2608 return;
2609 }
2610 for (t=0; t<mf->numchn; t++)
2611 { if ((t>=arg2) && (t<=arg3)) continue;
2612 mf->control[t].muted = 1;
2613 }
2614 break;
2615
2616 default:
2617 if(arg1<mf->numchn)
2618 mf->control[arg1].muted = 1;
2619 break;
2620 }
2621 }
2622 va_end(ap);
2623
2624 return;
2625 }
2626
2627
2628 void Player_Mute(SLONG arg1, ...)
2629 {
2630 va_list argptr;
2631 MP_Mute(pf,arg1, argptr);
2632 va_end(argptr);
2633 }
2634
2635
2636 void MP_ToggleMute(UNIMOD *mf, SLONG arg1, ...)
2637 {
2638 va_list ap;
2639 SLONG arg2, arg3;
2640 ULONG t;
2641
2642 va_start(ap,arg1);
2643
2644 if(mf != NULL)
2645 { switch (arg1)
2646 { case MUTE_INCLUSIVE:
2647 if ((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2648 { va_end(ap);
2649 return;
2650 }
2651 for(; arg2<mf->numchn && arg2<=arg3; arg2++)
2652 mf->control[arg2].muted = (mf->control[arg2].muted) ? 0 : 1;
2653
2654 break;
2655
2656 case MUTE_EXCLUSIVE:
2657 if ((!(arg2=va_arg(ap,SLONG))) && (!(arg3=va_arg(ap,SLONG))) || (arg2 > arg3) || (arg3 >= mf->numchn))
2658 { va_end(ap);
2659 return;
2660 }
2661 for (t=0;t<mf->numchn;t++)
2662 { if((t>=arg2) && (t<=arg3)) continue;
2663 mf->control[t].muted = (mf->control[t].muted) ? 0 : 1;
2664 }
2665 break;
2666
2667 default:
2668 if(arg1<mf->numchn)
2669 mf->control[arg1].muted = (mf->control[arg1].muted) ? 0 : 1;
2670 break;
2671 }
2672 }
2673 va_end(ap);
2674
2675 return;
2676 }
2677
2678
2679 void Player_ToggleMute(SLONG arg1, ...)
2680 {
2681 va_list argptr;
2682 MP_ToggleMute(pf,arg1, argptr);
2683 va_end(argptr);
2684 }
2685
2686
2687 BOOL MP_Muted(UNIMOD *mf, int chan)
2688 {
2689 if(mf==NULL) return 1;
2690 return (chan<mf->numchn) ? mf->control[chan].muted : 1;
2691 }
2692
2693
2694 BOOL Player_Muted(int chan)
2695 {
2696 if(pf==NULL) return 1;
2697 return (chan<pf->numchn) ? pf->control[chan].muted : 1;
2698 }
2699
2700
2701 int MP_GetChannelVoice(UNIMOD *mf, int chan)
2702 {
2703 if(mf==NULL) return 0;
2704 return mf->control[chan].slavechn;
2705 }
2706
2707
2708 int Player_GetChannelVoice(int chan)
2709 {
2710 if(pf==NULL) return 0;
2711 return pf->control[chan].slavechn;
2712 }
2713
2714
2715 void Player_TogglePause(void)
2716 {
2717 if(pf==NULL) return;
2718 if(pf->forbid == 1)
2719 pf->forbid = 0;
2720 else
2721 pf->forbid = 1;
2722 }
2723
2724
2725 // --> The following procedures were taken from UNITRK because they
2726 // -> are ProTracker format specific.
2727
2728 void UniInstrument(UBYTE ins)
2729 // Appends UNI_INSTRUMENT opcode to the unitrk stream.
2730 {
2731 UniWrite(UNI_INSTRUMENT);
2732 UniWrite(ins);
2733 }
2734
2735 void UniNote(UBYTE note)
2736 // Appends UNI_NOTE opcode to the unitrk stream.
2737 {
2738 UniWrite(UNI_NOTE);
2739 UniWrite(note);
2740 }
2741
2742 void UniPTEffect(UBYTE eff, UBYTE dat)
2743 // Appends UNI_PTEFFECTX opcode to the unitrk stream.
2744 {
2745 if(eff!=0 || dat!=0) // don't write empty effect
2746 { UniWrite(UNI_PTEFFECT0+eff);
2747 UniWrite(dat);
2748 }
2749 }
2750
2751 void UniVolEffect(UWORD eff, UBYTE dat)
2752 // Appends UNI_VOLEFFECT + effect/dat to unistream.
2753 {
2754 if(eff!=0 || dat!=0) // don't write empty effect
2755 { UniWrite(UNI_VOLEFFECTS);
2756 UniWrite(eff); UniWrite(dat);
2757 }
2758 }
2759