1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866
|
/* MikMod sound library
(c) 1998, 1999, 2005 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.
*/
/*==============================================================================
MikMod sound library internal definitions
==============================================================================*/
#ifndef _MIKMOD_INTERNALS_H
#define _MIKMOD_INTERNALS_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdarg.h>
#if defined(_MSC_VER) && !defined(__cplusplus) && !defined(HAVE_CONFIG_H)
#define inline __inline
#endif
#ifndef MIKMOD_UNIX
#if (defined(unix) || defined(__unix__) || defined(__unix) || \
(defined(__APPLE__) && defined(__MACH__))) && \
!(defined(__DJGPP__) || defined(_WIN32) || defined(__OS2__) || defined(__EMX__))
#define MIKMOD_UNIX 1
#endif
#endif /* MIKMOD_UNIX */
#include "mikmod.h"
/*========== More type definitions */
/* SLONGLONG: 64bit, signed */
#if !defined(_WIN32) && \
(defined(_LP64) || defined(__LP64__) || defined(__arch64__) || defined(__alpha) || defined(__x64_64) || defined(__powerpc64__))
typedef long SLONGLONG;
#define NATIVE_64BIT_INT
#elif defined(_WIN64) /* win64 is LLP64, not LP64 */
#define NATIVE_64BIT_INT
typedef long long SLONGLONG;
#elif defined(__WATCOMC__)
typedef __int64 SLONGLONG;
#elif defined(_WIN32) && !defined(__MWERKS__)
typedef LONGLONG SLONGLONG;
#elif defined(macintosh) && !TYPE_LONGLONG
#include <Types.h>
typedef SInt64 SLONGLONG;
#else
typedef long long SLONGLONG;
#endif
typedef int __s64_typetest [(sizeof(SLONGLONG)==8) * 2 - 1];
/* pointer-sized signed int (ssize_t/intptr_t) : */
#if defined(_WIN64) /* win64 is LLP64, not LP64 */
typedef long long SINTPTR_T;
#else
/* long should be pointer-sized for all others : */
typedef long SINTPTR_T;
#endif
typedef int __iptr_typetest [(sizeof(SINTPTR_T)==sizeof(void*)) * 2 - 1];
/*========== Error handling */
#define _mm_errno MikMod_errno
#define _mm_critical MikMod_critical
extern MikMod_handler_t _mm_errorhandler;
/*========== MT stuff */
#ifdef HAVE_PTHREAD
#include <pthread.h>
#define DECLARE_MUTEX(name) \
extern pthread_mutex_t _mm_mutex_##name
#define MUTEX_LOCK(name) \
pthread_mutex_lock(&_mm_mutex_##name)
#define MUTEX_UNLOCK(name) \
pthread_mutex_unlock(&_mm_mutex_##name)
#elif defined(__OS2__)||defined(__EMX__)
#define DECLARE_MUTEX(name) \
extern HMTX _mm_mutex_##name
#define MUTEX_LOCK(name) \
if(_mm_mutex_##name)\
DosRequestMutexSem(_mm_mutex_##name,SEM_INDEFINITE_WAIT)
#define MUTEX_UNLOCK(name) \
if(_mm_mutex_##name)\
DosReleaseMutexSem(_mm_mutex_##name)
#elif defined(_WIN32)
#include <windows.h>
#define DECLARE_MUTEX(name) \
extern HANDLE _mm_mutex_##name
#define MUTEX_LOCK(name) \
if(_mm_mutex_##name)\
WaitForSingleObject(_mm_mutex_##name,INFINITE)
#define MUTEX_UNLOCK(name) \
if(_mm_mutex_##name)\
ReleaseMutex(_mm_mutex_##name)
#else
#define DECLARE_MUTEX(name) \
extern void *_mm_mutex_##name
#define MUTEX_LOCK(name)
#define MUTEX_UNLOCK(name)
#endif
DECLARE_MUTEX(lists);
DECLARE_MUTEX(vars);
/*========== Replacement funcs */
extern int _mm_strcasecmp (const char *__s1, const char *__s2);
/*========== Portable file I/O */
extern MREADER* _mm_new_mem_reader(const void *buffer, long len);
extern void _mm_delete_mem_reader(MREADER *reader);
extern MREADER* _mm_new_file_reader(FILE* fp);
extern void _mm_delete_file_reader(MREADER*);
extern MWRITER* _mm_new_file_writer(FILE *fp);
extern void _mm_delete_file_writer(MWRITER*);
extern BOOL _mm_FileExists(const CHAR *fname);
#define _mm_write_SBYTE(x,y) y->Put(y,(int)x)
#define _mm_write_UBYTE(x,y) y->Put(y,(int)x)
#define _mm_read_SBYTE(x) (SBYTE)x->Get(x)
#define _mm_read_UBYTE(x) (UBYTE)x->Get(x)
#define _mm_skip_BYTE(x) (void)x->Get(x)
#define _mm_write_SBYTES(x,y,z) z->Write(z,(const void *)x,y)
#define _mm_write_UBYTES(x,y,z) z->Write(z,(const void *)x,y)
#define _mm_read_SBYTES(x,y,z) z->Read(z,(void *)x,y)
#define _mm_read_UBYTES(x,y,z) z->Read(z,(void *)x,y)
#define _mm_fseek(x,y,z) x->Seek(x,y,z)
#define _mm_ftell(x) x->Tell(x)
#define _mm_rewind(x) _mm_fseek(x,0,SEEK_SET)
#define _mm_eof(x) x->Eof(x)
extern void _mm_iobase_setcur(MREADER*);
extern void _mm_iobase_revert(MREADER*);
extern FILE* _mm_fopen(const CHAR *, const CHAR *);
extern int _mm_fclose(FILE *);
extern void _mm_write_string(const CHAR*,MWRITER*);
extern BOOL _mm_read_string (CHAR*,int,MREADER*);
extern SWORD _mm_read_M_SWORD(MREADER*);
extern SWORD _mm_read_I_SWORD(MREADER*);
extern UWORD _mm_read_M_UWORD(MREADER*);
extern UWORD _mm_read_I_UWORD(MREADER*);
extern SLONG _mm_read_M_SLONG(MREADER*);
extern SLONG _mm_read_I_SLONG(MREADER*);
extern ULONG _mm_read_M_ULONG(MREADER*);
extern ULONG _mm_read_I_ULONG(MREADER*);
extern BOOL _mm_read_M_SWORDS(SWORD*,int,MREADER*);
extern BOOL _mm_read_I_SWORDS(SWORD*,int,MREADER*);
extern BOOL _mm_read_M_UWORDS(UWORD*,int,MREADER*);
extern BOOL _mm_read_I_UWORDS(UWORD*,int,MREADER*);
extern BOOL _mm_read_M_SLONGS(SLONG*,int,MREADER*);
extern BOOL _mm_read_I_SLONGS(SLONG*,int,MREADER*);
extern BOOL _mm_read_M_ULONGS(ULONG*,int,MREADER*);
extern BOOL _mm_read_I_ULONGS(ULONG*,int,MREADER*);
extern void _mm_write_M_SWORD(SWORD,MWRITER*);
extern void _mm_write_I_SWORD(SWORD,MWRITER*);
extern void _mm_write_M_UWORD(UWORD,MWRITER*);
extern void _mm_write_I_UWORD(UWORD,MWRITER*);
extern void _mm_write_M_SLONG(SLONG,MWRITER*);
extern void _mm_write_I_SLONG(SLONG,MWRITER*);
extern void _mm_write_M_ULONG(ULONG,MWRITER*);
extern void _mm_write_I_ULONG(ULONG,MWRITER*);
extern void _mm_write_M_SWORDS(SWORD*,int,MWRITER*);
extern void _mm_write_I_SWORDS(SWORD*,int,MWRITER*);
extern void _mm_write_M_UWORDS(UWORD*,int,MWRITER*);
extern void _mm_write_I_UWORDS(UWORD*,int,MWRITER*);
extern void _mm_write_M_SLONGS(SLONG*,int,MWRITER*);
extern void _mm_write_I_SLONGS(SLONG*,int,MWRITER*);
extern void _mm_write_M_ULONGS(ULONG*,int,MWRITER*);
extern void _mm_write_I_ULONGS(ULONG*,int,MWRITER*);
/*========== Samples */
/* This is a handle of sorts attached to any sample registered with
SL_RegisterSample. Generally, this only need be used or changed by the
loaders and drivers of mikmod. */
typedef struct SAMPLOAD {
struct SAMPLOAD *next;
ULONG length; /* length of sample (in samples!) */
ULONG loopstart; /* repeat position (relative to start, in samples) */
ULONG loopend; /* repeat end */
UWORD infmt,outfmt;
int scalefactor;
SAMPLE* sample;
MREADER* reader;
} SAMPLOAD;
/*========== Sample and waves loading interface */
extern void SL_HalveSample(SAMPLOAD*,int);
extern void SL_Sample8to16(SAMPLOAD*);
extern void SL_Sample16to8(SAMPLOAD*);
extern void SL_SampleSigned(SAMPLOAD*);
extern void SL_SampleUnsigned(SAMPLOAD*);
extern int SL_LoadSamples(void);
extern SAMPLOAD* SL_RegisterSample(SAMPLE*,int,MREADER*);
extern int SL_Load(void*,SAMPLOAD*,ULONG);
extern BOOL SL_Init(SAMPLOAD*);
extern void SL_Exit(SAMPLOAD*);
/*========== Internal module representation (UniMod) interface */
/* number of notes in an octave */
#define OCTAVE 12
extern void UniSetRow(UBYTE*);
extern UBYTE UniGetByte(void);
extern UWORD UniGetWord(void);
extern UBYTE* UniFindRow(UBYTE*,UWORD);
extern void UniSkipOpcode(void);
extern void UniReset(void);
extern void UniWriteByte(UBYTE);
extern void UniWriteWord(UWORD);
extern void UniNewline(void);
extern UBYTE* UniDup(void);
extern BOOL UniInit(void);
extern void UniCleanup(void);
extern void UniEffect(UWORD,UWORD);
#define UniInstrument(x) UniEffect(UNI_INSTRUMENT,x)
#define UniNote(x) UniEffect(UNI_NOTE,x)
extern void UniPTEffect(UBYTE,UBYTE);
extern void UniVolEffect(UWORD,UBYTE);
/*========== Module Commands */
enum {
/* Simple note */
UNI_NOTE = 1,
/* Instrument change */
UNI_INSTRUMENT,
/* Protracker effects */
UNI_PTEFFECT0, /* arpeggio */
UNI_PTEFFECT1, /* porta up */
UNI_PTEFFECT2, /* porta down */
UNI_PTEFFECT3, /* porta to note */
UNI_PTEFFECT4, /* vibrato */
UNI_PTEFFECT5, /* dual effect 3+A */
UNI_PTEFFECT6, /* dual effect 4+A */
UNI_PTEFFECT7, /* tremolo */
UNI_PTEFFECT8, /* pan */
UNI_PTEFFECT9, /* sample offset */
UNI_PTEFFECTA, /* volume slide */
UNI_PTEFFECTB, /* pattern jump */
UNI_PTEFFECTC, /* set volume */
UNI_PTEFFECTD, /* pattern break */
UNI_PTEFFECTE, /* extended effects */
UNI_PTEFFECTF, /* set speed */
/* Scream Tracker effects */
UNI_S3MEFFECTA, /* set speed */
UNI_S3MEFFECTD, /* volume slide */
UNI_S3MEFFECTE, /* porta down */
UNI_S3MEFFECTF, /* porta up */
UNI_S3MEFFECTI, /* tremor */
UNI_S3MEFFECTQ, /* retrig */
UNI_S3MEFFECTR, /* tremolo */
UNI_S3MEFFECTT, /* set tempo */
UNI_S3MEFFECTU, /* fine vibrato */
UNI_KEYOFF, /* note off */
/* Fast Tracker effects */
UNI_KEYFADE, /* note fade */
UNI_VOLEFFECTS, /* volume column effects */
UNI_XMEFFECT4, /* vibrato */
UNI_XMEFFECT6, /* dual effect 4+A */
UNI_XMEFFECTA, /* volume slide */
UNI_XMEFFECTE1, /* fine porta up */
UNI_XMEFFECTE2, /* fine porta down */
UNI_XMEFFECTEA, /* fine volume slide up */
UNI_XMEFFECTEB, /* fine volume slide down */
UNI_XMEFFECTG, /* set global volume */
UNI_XMEFFECTH, /* global volume slide */
UNI_XMEFFECTL, /* set envelope position */
UNI_XMEFFECTP, /* pan slide */
UNI_XMEFFECTX1, /* extra fine porta up */
UNI_XMEFFECTX2, /* extra fine porta down */
/* Impulse Tracker effects */
UNI_ITEFFECTG, /* porta to note */
UNI_ITEFFECTH, /* vibrato */
UNI_ITEFFECTI, /* tremor (xy not incremented) */
UNI_ITEFFECTM, /* set channel volume */
UNI_ITEFFECTN, /* slide / fineslide channel volume */
UNI_ITEFFECTP, /* slide / fineslide channel panning */
UNI_ITEFFECTT, /* slide tempo */
UNI_ITEFFECTU, /* fine vibrato */
UNI_ITEFFECTW, /* slide / fineslide global volume */
UNI_ITEFFECTY, /* panbrello */
UNI_ITEFFECTZ, /* resonant filters */
UNI_ITEFFECTS0,
/* UltraTracker effects */
UNI_ULTEFFECT9, /* Sample fine offset */
/* OctaMED effects */
UNI_MEDSPEED,
UNI_MEDEFFECTF1,/* play note twice */
UNI_MEDEFFECTF2,/* delay note */
UNI_MEDEFFECTF3,/* play note three times */
/* Oktalyzer effects */
UNI_OKTARP, /* arpeggio */
UNI_LAST
};
extern const UWORD unioperands[UNI_LAST];
/* IT / S3M Extended SS effects: */
enum {
SS_GLISSANDO = 1,
SS_FINETUNE,
SS_VIBWAVE,
SS_TREMWAVE,
SS_PANWAVE,
SS_FRAMEDELAY,
SS_S7EFFECTS,
SS_PANNING,
SS_SURROUND,
SS_HIOFFSET,
SS_PATLOOP,
SS_NOTECUT,
SS_NOTEDELAY,
SS_PATDELAY
};
/* IT Volume column effects */
enum {
VOL_VOLUME = 1,
VOL_PANNING,
VOL_VOLSLIDE,
VOL_PITCHSLIDEDN,
VOL_PITCHSLIDEUP,
VOL_PORTAMENTO,
VOL_VIBRATO
};
/* IT resonant filter information */
#define UF_MAXMACRO 0x10
#define UF_MAXFILTER 0x100
#define FILT_CUT 0x80
#define FILT_RESONANT 0x81
typedef struct FILTER {
UBYTE filter,inf;
} FILTER;
/*========== Instruments */
/* Instrument format flags */
#define IF_OWNPAN 1
#define IF_PITCHPAN 2
/* Envelope flags: */
#define EF_ON 1
#define EF_SUSTAIN 2
#define EF_LOOP 4
#define EF_VOLENV 8
/* New Note Action Flags */
#define NNA_CUT 0
#define NNA_CONTINUE 1
#define NNA_OFF 2
#define NNA_FADE 3
#define NNA_MASK 3
#define DCT_OFF 0
#define DCT_NOTE 1
#define DCT_SAMPLE 2
#define DCT_INST 3
#define DCA_CUT 0
#define DCA_OFF 1
#define DCA_FADE 2
#define KEY_KICK 0
#define KEY_OFF 1
#define KEY_FADE 2
#define KEY_KILL (KEY_OFF|KEY_FADE)
#define KICK_ABSENT 0
#define KICK_NOTE 1
#define KICK_KEYOFF 2
#define KICK_ENV 4
#define AV_IT 1 /* IT vs. XM vibrato info */
/*========== Playing */
#define POS_NONE (-2) /* no loop position defined */
#define LAST_PATTERN (UWORD)(-1) /* special ``end of song'' pattern */
typedef struct ENVPR {
UBYTE flg; /* envelope flag */
UBYTE pts; /* number of envelope points */
UBYTE susbeg; /* envelope sustain index begin */
UBYTE susend; /* envelope sustain index end */
UBYTE beg; /* envelope loop begin */
UBYTE end; /* envelope loop end */
SWORD p; /* current envelope counter */
UWORD a; /* envelope index a */
UWORD b; /* envelope index b */
ENVPT* env; /* envelope points */
} ENVPR;
typedef struct MP_CHANNEL {
INSTRUMENT* i;
SAMPLE *s;
UBYTE sample; /* which sample number */
UBYTE note; /* the audible note as heard, direct rep of period */
SWORD outvolume; /* output volume (vol + sampcol + instvol) */
SBYTE chanvol; /* channel's "global" volume */
UWORD fadevol; /* fading volume rate */
SWORD panning; /* panning position */
UBYTE kick; /* if true = sample has to be restarted */
UBYTE kick_flag; /* kick has been true */
UWORD period; /* period to play the sample at */
UBYTE nna; /* New note action type + master/slave flags */
UBYTE volflg; /* volume envelope settings */
UBYTE panflg; /* panning envelope settings */
UBYTE pitflg; /* pitch envelope settings */
UBYTE keyoff; /* if true = fade out and stuff */
SWORD handle; /* which sample-handle */
UBYTE notedelay; /* (used for note delay) */
SLONG start; /* The starting byte index in the sample */
} MP_CHANNEL;
typedef struct MP_CONTROL {
struct MP_CHANNEL main;
struct MP_VOICE* slave; /* Audio Slave of current effects control channel */
UBYTE slavechn; /* Audio Slave of current effects control channel */
UBYTE muted; /* if set, channel not played */
UWORD ultoffset; /* fine sample offset memory */
UBYTE anote; /* the note that indexes the audible */
UBYTE oldnote;
SWORD ownper;
SWORD ownvol;
UBYTE dca; /* duplicate check action */
UBYTE dct; /* duplicate check type */
UBYTE* row; /* row currently playing on this channel */
SBYTE retrig; /* retrig value (0 means don't retrig) */
ULONG speed; /* what finetune to use */
SWORD volume; /* amiga volume (0 t/m 64) to play the sample at */
SWORD tmpvolume; /* tmp volume */
UWORD tmpperiod; /* tmp period */
UWORD wantedperiod;/* period to slide to (with effect 3 or 5) */
UBYTE arpmem; /* arpeggio command memory */
UBYTE pansspd; /* panslide speed */
UWORD slidespeed;
UWORD portspeed; /* noteslide speed (toneportamento) */
UBYTE s3mtremor; /* s3m tremor (effect I) counter */
UBYTE s3mtronof; /* s3m tremor ontime/offtime */
UBYTE s3mvolslide;/* last used volslide */
SBYTE sliding;
UBYTE s3mrtgspeed;/* last used retrig speed */
UBYTE s3mrtgslide;/* last used retrig slide */
UBYTE glissando; /* glissando (0 means off) */
UBYTE wavecontrol;
SBYTE vibpos; /* current vibrato position */
UBYTE vibspd; /* "" speed */
UBYTE vibdepth; /* "" depth */
SBYTE trmpos; /* current tremolo position */
UBYTE trmspd; /* "" speed */
UBYTE trmdepth; /* "" depth */
UBYTE fslideupspd;
UBYTE fslidednspd;
UBYTE fportupspd; /* fx E1 (extra fine portamento up) data */
UBYTE fportdnspd; /* fx E2 (extra fine portamento dn) data */
UBYTE ffportupspd;/* fx X1 (extra fine portamento up) data */
UBYTE ffportdnspd;/* fx X2 (extra fine portamento dn) data */
ULONG hioffset; /* last used high order of sample offset */
UWORD soffset; /* last used low order of sample-offset (effect 9) */
UBYTE sseffect; /* last used Sxx effect */
UBYTE ssdata; /* last used Sxx data info */
UBYTE chanvolslide;/* last used channel volume slide */
UBYTE panbwave; /* current panbrello waveform */
UBYTE panbpos; /* current panbrello position */
SBYTE panbspd; /* "" speed */
UBYTE panbdepth; /* "" depth */
UWORD newsamp; /* set to 1 upon a sample / inst change */
UBYTE voleffect; /* Volume Column Effect Memory as used by IT */
UBYTE voldata; /* Volume Column Data Memory */
SWORD pat_reppos; /* patternloop position */
UWORD pat_repcnt; /* times to loop */
} MP_CONTROL;
/* Used by NNA only player (audio control. AUDTMP is used for full effects
control). */
typedef struct MP_VOICE {
struct MP_CHANNEL main;
ENVPR venv;
ENVPR penv;
ENVPR cenv;
UWORD avibpos; /* autovibrato pos */
UWORD aswppos; /* autovibrato sweep pos */
ULONG totalvol; /* total volume of channel (before global mixings) */
BOOL mflag;
SWORD masterchn;
UWORD masterperiod;
MP_CONTROL* master; /* index of "master" effects channel */
} MP_VOICE;
/*========== Loaders */
typedef struct MLOADER {
struct MLOADER* next;
const CHAR* type;
const CHAR* version;
BOOL (*Init)(void);
BOOL (*Test)(void);
BOOL (*Load)(BOOL);
void (*Cleanup)(void);
CHAR* (*LoadTitle)(void);
} MLOADER;
/* internal loader variables */
extern MREADER* modreader;
extern MODULE of; /* static unimod loading space */
extern const UWORD finetune[16];
extern const UWORD npertab[7*OCTAVE];/* used by the original MOD loaders */
extern SBYTE remap[UF_MAXCHAN]; /* for removing empty channels */
extern UBYTE* poslookup; /* lookup table for pattern jumps after
blank pattern removal */
extern UWORD poslookupcnt;
extern UWORD* origpositions;
extern BOOL filters; /* resonant filters in use */
extern UBYTE activemacro; /* active midi macro number for Sxx */
extern UBYTE filtermacros[UF_MAXMACRO]; /* midi macro settings */
extern FILTER filtersettings[UF_MAXFILTER]; /* computed filter settings */
extern int* noteindex;
/*========== Internal loader interface */
extern BOOL ReadComment(UWORD);
extern BOOL ReadLinedComment(UWORD,UWORD);
extern BOOL AllocPositions(int);
extern BOOL AllocPatterns(void);
extern BOOL AllocTracks(void);
extern BOOL AllocInstruments(void);
extern BOOL AllocSamples(void);
extern CHAR* DupStr(const CHAR*, UWORD, BOOL);
/* loader utility functions */
extern int* AllocLinear(void);
extern void FreeLinear(void);
extern int speed_to_finetune(ULONG,int);
extern void S3MIT_ProcessCmd(UBYTE,UBYTE,unsigned int);
extern void S3MIT_CreateOrders(BOOL);
/* flags for S3MIT_ProcessCmd */
#define S3MIT_OLDSTYLE 1 /* behave as old scream tracker */
#define S3MIT_IT 2 /* behave as impulse tracker */
#define S3MIT_SCREAM 4 /* enforce scream tracker specific limits */
/* used to convert c4spd to linear XM periods (IT and IMF loaders). */
extern UWORD getlinearperiod(UWORD,ULONG);
extern ULONG getfrequency(UWORD,ULONG);
/* loader shared data */
#define STM_NTRACKERS 3
extern const CHAR *STM_Signatures[STM_NTRACKERS];
/*========== Player interface */
extern int Player_Init(MODULE*);
extern void Player_Exit(MODULE*);
extern void Player_HandleTick(void);
/*========== UnPackers */
typedef BOOL (*MUNPACKER) (struct MREADER*,
void** /* unpacked data out */ ,
long* /* unpacked data size */ );
extern BOOL PP20_Unpack(MREADER*, void**, long*);
extern BOOL MMCMP_Unpack(MREADER*, void**, long*);
extern BOOL XPK_Unpack(MREADER*, void**, long*);
extern BOOL S404_Unpack(MREADER*, void**, long*);
/*========== Drivers */
/* max. number of handles a driver has to provide. (not strict) */
#define MAXSAMPLEHANDLES 384
/* These variables can be changed at ANY time and results will be immediate */
extern UWORD md_bpm; /* current song / hardware BPM rate */
/* Variables below can be changed via MD_SetNumVoices at any time. However, a
call to MD_SetNumVoicess while the driver is active will cause the sound to
skip slightly. */
extern UBYTE md_numchn; /* number of song + sound effects voices */
extern UBYTE md_sngchn; /* number of song voices */
extern UBYTE md_sfxchn; /* number of sound effects voices */
extern UBYTE md_hardchn; /* number of hardware mixed voices */
extern UBYTE md_softchn; /* number of software mixed voices */
/* This is for use by the hardware drivers only. It points to the registered
tickhandler function. */
extern void (*md_player)(void);
extern SWORD MD_SampleLoad(SAMPLOAD*,int);
extern void MD_SampleUnload(SWORD);
extern ULONG MD_SampleSpace(int);
extern ULONG MD_SampleLength(int,SAMPLE*);
/* uLaw conversion */
extern void unsignedtoulaw(char *,int);
/* Parameter extraction helper */
extern CHAR *MD_GetAtom(const CHAR*, const CHAR*, BOOL);
/* Internal software mixer stuff */
extern void VC_SetupPointers(void);
extern int VC1_Init(void);
extern int VC2_Init(void);
#if (MIKMOD_UNIX)
/* POSIX helper functions */
extern BOOL MD_Access(const CHAR *);
extern int MD_DropPrivileges(void);
#endif
/* Macro to define a missing driver, yet allowing binaries to dynamically link
with the library without missing symbol errors */
#define MISSING(a) MDRIVER a = { NULL, NULL, NULL, 0, 0 }
/*========== Prototypes for non-MT safe versions of some public functions */
extern void _mm_registerdriver(struct MDRIVER*);
extern void _mm_registerloader(struct MLOADER*);
extern BOOL MikMod_Active_internal(void);
extern void MikMod_DisableOutput_internal(void);
extern int MikMod_EnableOutput_internal(void);
extern void MikMod_Exit_internal(void);
extern int MikMod_SetNumVoices_internal(int,int);
extern void Player_Exit_internal(MODULE*);
extern void Player_Stop_internal(void);
extern BOOL Player_Paused_internal(void);
extern void Sample_Free_internal(SAMPLE*);
extern void Voice_Play_internal(SBYTE,SAMPLE*,ULONG);
extern void Voice_SetFrequency_internal(SBYTE,ULONG);
extern void Voice_SetPanning_internal(SBYTE,ULONG);
extern void Voice_SetVolume_internal(SBYTE,UWORD);
extern void Voice_Stop_internal(SBYTE);
extern BOOL Voice_Stopped_internal(SBYTE);
extern int VC1_PlayStart(void);
extern int VC2_PlayStart(void);
extern void VC1_PlayStop(void);
extern void VC2_PlayStop(void);
extern int VC1_SetNumVoices(void);
extern int VC2_SetNumVoices(void);
extern MikMod_callback_t vc_callback;
#ifdef __cplusplus
}
#endif
/*========== SIMD mixing routines */
#undef HAVE_ALTIVEC
#undef HAVE_SSE2
#if defined(MIKMOD_SIMD)
#if (defined(__ppc__) || defined(__ppc64__)) && defined(__VEC__) && !(defined(__GNUC__) && (__GNUC__ < 3))
#define HAVE_ALTIVEC
#elif defined(__GNUC__) && defined(__SSE2__) /* x86 / x86_64 */
#define HAVE_SSE2
#elif defined(_MSC_VER) && (_MSC_VER >= 1300) && (defined(_M_IX86) || defined(_M_AMD64))
/* FIXME: emmintrin.h requires VC6 processor pack or VC2003+ */
#define HAVE_SSE2
/* avoid some warnings */
#pragma warning(disable:4761)
#pragma warning(disable:4391)
#pragma warning(disable:4244)
#endif /* AltiVec/SSE2 */
#endif /* MIKMOD_SIMD */
/*========== SIMD mixing helper functions =============*/
#if defined(_WIN64)
# if defined(_MSC_VER)
# define IS_ALIGNED_16(ptr) (!((__int64)(ptr) & 15i64))
# else /* GCC, LCC, .. */
# define IS_ALIGNED_16(ptr) (!((long long)(ptr) & 15LL))
# endif
#else /* long cast should be OK for all else */
#define IS_ALIGNED_16(ptr) (!((long)(ptr) & 15L))
#endif
/* Altivec helper function */
#if defined HAVE_ALTIVEC
#define simd_m128i vector signed int
#define simd_m128 vector float
#ifdef __GNUC__
#include <ppc_intrinsics.h>
#endif
/* Helper functions */
/* Set single float across the four values */
static inline vector float vec_mul(const vector float a, const vector float b) {
return vec_madd(a, b, (const vector float)(0.f));
}
/* Set single float across the four values */
static inline vector float vec_load_ps1(const float *pF) {
vector float data = vec_lde(0, pF);
return vec_splat(vec_perm(data, data, vec_lvsl(0, pF)), 0);
}
/* Set vector to 0 */
static inline vector float vec_setzero() {
return (vector float) (0.);
}
static inline vector signed char vec_set1_8(unsigned char splatchar) {
vector unsigned char splatmap = vec_lvsl(0, &splatchar);
vector unsigned char result = vec_lde(0, &splatchar);
splatmap = vec_splat(splatmap, 0);
return (vector signed char)vec_perm(result, result, splatmap);
}
#define PERM_A0 0x00,0x01,0x02,0x03
#define PERM_A1 0x04,0x05,0x06,0x07
#define PERM_A2 0x08,0x09,0x0A,0x0B
#define PERM_A3 0x0C,0x0D,0x0E,0x0F
#define PERM_B0 0x10,0x11,0x12,0x13
#define PERM_B1 0x14,0x15,0x16,0x17
#define PERM_B2 0x18,0x19,0x1A,0x1B
#define PERM_B3 0x1C,0x1D,0x1E,0x1F
/* Equivalent to _mm_unpacklo_epi32 */
static inline vector signed int vec_unpacklo(vector signed int a, vector signed int b) {
return vec_perm(a, b, (vector unsigned char)(PERM_A0,PERM_A1,PERM_B0,PERM_B1));
}
/* Equivalent to _mm_srli_si128(a, 8) (without the zeroing in high part). */
static inline vector signed int vec_hiqq(vector signed int a) {
vector signed int b = vec_splat_s32(0);
return vec_perm(a, b, (vector unsigned char)(PERM_A2,PERM_A3,PERM_B2,PERM_B3));
}
/* vec_sra is max +15. We have to do in two times ... */
#define EXTRACT_SAMPLE_SIMD_F(srce, var, size, mul) var = vec_mul(vec_ctf(vec_sra(vec_ld(0, (vector signed int const *)(srce)), vec_splat_u32(BITSHIFT-size)),0), mul);
#define EXTRACT_SAMPLE_SIMD_0(srce, var) var = vec_sra(vec_sra(vec_ld(0, (vector signed int const *)(srce)), vec_splat_u32(15)), vec_splat_u32(BITSHIFT+16-15-0));
#define EXTRACT_SAMPLE_SIMD_8(srce, var) var = vec_sra(vec_sra(vec_ld(0, (vector signed int const *)(srce)), vec_splat_u32(15)), vec_splat_u32(BITSHIFT+16-15-8));
#define EXTRACT_SAMPLE_SIMD_16(srce, var) var = vec_sra(vec_ld(0, (vector signed int const *)(srce)), vec_splat_u32(BITSHIFT+16-16));
#define PUT_SAMPLE_SIMD_W(dste, v1, v2) vec_st(vec_packs(v1, v2), 0, dste);
#define PUT_SAMPLE_SIMD_B(dste, v1, v2, v3, v4) vec_st(vec_add(vec_packs((vector signed short)vec_packs(v1, v2), (vector signed short)vec_packs(v3, v4)), vec_set1_8(128)), 0, dste);
#define PUT_SAMPLE_SIMD_F(dste, v1) vec_st(v1, 0, dste);
#define LOAD_PS1_SIMD(ptr) vec_load_ps1(ptr)
#elif defined HAVE_SSE2
#include <emmintrin.h>
/* SSE2 helper function */
static __inline __m128i mm_hiqq(const __m128i a) {
return _mm_srli_si128(a, 8); /* get the 64bit upper part. new 64bit upper is undefined (zeroed is fine). */
}
/* 128-bit mixing macros */
#define EXTRACT_SAMPLE_SIMD(srce, var, size) var = _mm_srai_epi32(_mm_load_si128((__m128i const *)(srce)), BITSHIFT+16-size);
#define EXTRACT_SAMPLE_SIMD_F(srce, var, size, mul) var = _mm_mul_ps(_mm_cvtepi32_ps(_mm_srai_epi32(_mm_load_si128((__m128i const *)(srce)), BITSHIFT-size)), mul);
#define EXTRACT_SAMPLE_SIMD_0(srce, var) EXTRACT_SAMPLE_SIMD(srce, var, 0)
#define EXTRACT_SAMPLE_SIMD_8(srce, var) EXTRACT_SAMPLE_SIMD(srce, var, 8)
#define EXTRACT_SAMPLE_SIMD_16(srce, var) EXTRACT_SAMPLE_SIMD(srce, var, 16)
#define PUT_SAMPLE_SIMD_W(dste, v1, v2) _mm_store_si128((__m128i*)(dste), _mm_packs_epi32(v1, v2));
#define PUT_SAMPLE_SIMD_B(dste, v1, v2, v3, v4) _mm_store_si128((__m128i*)(dste), _mm_add_epi8(_mm_packs_epi16(_mm_packs_epi32(v1, v2), _mm_packs_epi32(v3, v4)), _mm_set1_epi8(128)));
#define PUT_SAMPLE_SIMD_F(dste, v1) _mm_store_ps((float*)(dste), v1);
#define LOAD_PS1_SIMD(ptr) _mm_load_ps1(ptr)
#define simd_m128i __m128i
#define simd_m128 __m128
#endif
#if defined(HAVE_SSE2) || defined(HAVE_ALTIVEC)
/* MikMod_amalloc() returns a 16 byte aligned zero-filled
memory in SIMD-enabled builds.
- the returned memory can be freed with MikMod_afree()
- the returned memory CAN NOT be realloc()'ed safely. */
#ifdef __cplusplus
extern "C" {
#endif
void* MikMod_amalloc(size_t);
void MikMod_afree(void *); /* frees if ptr != NULL */
#ifdef __cplusplus
}
#endif
#else /* NO SIMD */
#define MikMod_amalloc MikMod_malloc
#define MikMod_afree MikMod_free
#endif
#endif /* _MIKMOD_INTERNALS_H */
/* ex:set ts=4: */
|