2 ======================================================================
5 Definitions and typedefs for LWO2 files.
8 ====================================================================== */
13 /* chunk and subchunk IDs */
15 #define LWID_( a,b,c,d ) ( ( ( a ) << 24 ) | ( ( b ) << 16 ) | ( ( c ) << 8 ) | ( d ) )
17 #define ID_FORM LWID_( 'F','O','R','M' )
18 #define ID_LWO2 LWID_( 'L','W','O','2' )
19 #define ID_LWOB LWID_( 'L','W','O','B' )
21 /* top-level chunks */
22 #define ID_LAYR LWID_( 'L','A','Y','R' )
23 #define ID_TAGS LWID_( 'T','A','G','S' )
24 #define ID_PNTS LWID_( 'P','N','T','S' )
25 #define ID_BBOX LWID_( 'B','B','O','X' )
26 #define ID_VMAP LWID_( 'V','M','A','P' )
27 #define ID_VMAD LWID_( 'V','M','A','D' )
28 #define ID_POLS LWID_( 'P','O','L','S' )
29 #define ID_PTAG LWID_( 'P','T','A','G' )
30 #define ID_ENVL LWID_( 'E','N','V','L' )
31 #define ID_CLIP LWID_( 'C','L','I','P' )
32 #define ID_SURF LWID_( 'S','U','R','F' )
33 #define ID_DESC LWID_( 'D','E','S','C' )
34 #define ID_TEXT LWID_( 'T','E','X','T' )
35 #define ID_ICON LWID_( 'I','C','O','N' )
38 #define ID_FACE LWID_( 'F','A','C','E' )
39 #define ID_CURV LWID_( 'C','U','R','V' )
40 #define ID_PTCH LWID_( 'P','T','C','H' )
41 #define ID_MBAL LWID_( 'M','B','A','L' )
42 #define ID_BONE LWID_( 'B','O','N','E' )
45 #define ID_SURF LWID_( 'S','U','R','F' )
46 #define ID_PART LWID_( 'P','A','R','T' )
47 #define ID_SMGP LWID_( 'S','M','G','P' )
50 #define ID_PRE LWID_( 'P','R','E',' ' )
51 #define ID_POST LWID_( 'P','O','S','T' )
52 #define ID_KEY LWID_( 'K','E','Y',' ' )
53 #define ID_SPAN LWID_( 'S','P','A','N' )
54 #define ID_TCB LWID_( 'T','C','B',' ' )
55 #define ID_HERM LWID_( 'H','E','R','M' )
56 #define ID_BEZI LWID_( 'B','E','Z','I' )
57 #define ID_BEZ2 LWID_( 'B','E','Z','2' )
58 #define ID_LINE LWID_( 'L','I','N','E' )
59 #define ID_STEP LWID_( 'S','T','E','P' )
62 #define ID_STIL LWID_( 'S','T','I','L' )
63 #define ID_ISEQ LWID_( 'I','S','E','Q' )
64 #define ID_ANIM LWID_( 'A','N','I','M' )
65 #define ID_XREF LWID_( 'X','R','E','F' )
66 #define ID_STCC LWID_( 'S','T','C','C' )
67 #define ID_TIME LWID_( 'T','I','M','E' )
68 #define ID_CONT LWID_( 'C','O','N','T' )
69 #define ID_BRIT LWID_( 'B','R','I','T' )
70 #define ID_SATR LWID_( 'S','A','T','R' )
71 #define ID_HUE LWID_( 'H','U','E',' ' )
72 #define ID_GAMM LWID_( 'G','A','M','M' )
73 #define ID_NEGA LWID_( 'N','E','G','A' )
74 #define ID_IFLT LWID_( 'I','F','L','T' )
75 #define ID_PFLT LWID_( 'P','F','L','T' )
78 #define ID_COLR LWID_( 'C','O','L','R' )
79 #define ID_LUMI LWID_( 'L','U','M','I' )
80 #define ID_DIFF LWID_( 'D','I','F','F' )
81 #define ID_SPEC LWID_( 'S','P','E','C' )
82 #define ID_GLOS LWID_( 'G','L','O','S' )
83 #define ID_REFL LWID_( 'R','E','F','L' )
84 #define ID_RFOP LWID_( 'R','F','O','P' )
85 #define ID_RIMG LWID_( 'R','I','M','G' )
86 #define ID_RSAN LWID_( 'R','S','A','N' )
87 #define ID_TRAN LWID_( 'T','R','A','N' )
88 #define ID_TROP LWID_( 'T','R','O','P' )
89 #define ID_TIMG LWID_( 'T','I','M','G' )
90 #define ID_RIND LWID_( 'R','I','N','D' )
91 #define ID_TRNL LWID_( 'T','R','N','L' )
92 #define ID_BUMP LWID_( 'B','U','M','P' )
93 #define ID_SMAN LWID_( 'S','M','A','N' )
94 #define ID_SIDE LWID_( 'S','I','D','E' )
95 #define ID_CLRH LWID_( 'C','L','R','H' )
96 #define ID_CLRF LWID_( 'C','L','R','F' )
97 #define ID_ADTR LWID_( 'A','D','T','R' )
98 #define ID_SHRP LWID_( 'S','H','R','P' )
99 #define ID_LINE LWID_( 'L','I','N','E' )
100 #define ID_LSIZ LWID_( 'L','S','I','Z' )
101 #define ID_ALPH LWID_( 'A','L','P','H' )
102 #define ID_AVAL LWID_( 'A','V','A','L' )
103 #define ID_GVAL LWID_( 'G','V','A','L' )
104 #define ID_BLOK LWID_( 'B','L','O','K' )
107 #define ID_TYPE LWID_( 'T','Y','P','E' )
108 #define ID_CHAN LWID_( 'C','H','A','N' )
109 #define ID_NAME LWID_( 'N','A','M','E' )
110 #define ID_ENAB LWID_( 'E','N','A','B' )
111 #define ID_OPAC LWID_( 'O','P','A','C' )
112 #define ID_FLAG LWID_( 'F','L','A','G' )
113 #define ID_PROJ LWID_( 'P','R','O','J' )
114 #define ID_STCK LWID_( 'S','T','C','K' )
115 #define ID_TAMP LWID_( 'T','A','M','P' )
117 /* texture coordinates */
118 #define ID_TMAP LWID_( 'T','M','A','P' )
119 #define ID_AXIS LWID_( 'A','X','I','S' )
120 #define ID_CNTR LWID_( 'C','N','T','R' )
121 #define ID_SIZE LWID_( 'S','I','Z','E' )
122 #define ID_ROTA LWID_( 'R','O','T','A' )
123 #define ID_OREF LWID_( 'O','R','E','F' )
124 #define ID_FALL LWID_( 'F','A','L','L' )
125 #define ID_CSYS LWID_( 'C','S','Y','S' )
128 #define ID_IMAP LWID_( 'I','M','A','P' )
129 #define ID_IMAG LWID_( 'I','M','A','G' )
130 #define ID_WRAP LWID_( 'W','R','A','P' )
131 #define ID_WRPW LWID_( 'W','R','P','W' )
132 #define ID_WRPH LWID_( 'W','R','P','H' )
133 #define ID_VMAP LWID_( 'V','M','A','P' )
134 #define ID_AAST LWID_( 'A','A','S','T' )
135 #define ID_PIXB LWID_( 'P','I','X','B' )
138 #define ID_PROC LWID_( 'P','R','O','C' )
139 #define ID_COLR LWID_( 'C','O','L','R' )
140 #define ID_VALU LWID_( 'V','A','L','U' )
141 #define ID_FUNC LWID_( 'F','U','N','C' )
142 #define ID_FTPS LWID_( 'F','T','P','S' )
143 #define ID_ITPS LWID_( 'I','T','P','S' )
144 #define ID_ETPS LWID_( 'E','T','P','S' )
147 #define ID_GRAD LWID_( 'G','R','A','D' )
148 #define ID_GRST LWID_( 'G','R','S','T' )
149 #define ID_GREN LWID_( 'G','R','E','N' )
150 #define ID_PNAM LWID_( 'P','N','A','M' )
151 #define ID_INAM LWID_( 'I','N','A','M' )
152 #define ID_GRPT LWID_( 'G','R','P','T' )
153 #define ID_FKEY LWID_( 'F','K','E','Y' )
154 #define ID_IKEY LWID_( 'I','K','E','Y' )
157 #define ID_SHDR LWID_( 'S','H','D','R' )
158 #define ID_DATA LWID_( 'D','A','T','A' )
161 /* generic linked list */
163 typedef struct st_lwNode {
164 struct st_lwNode *next, *prev;
169 /* plug-in reference */
171 typedef struct st_lwPlugin {
172 struct st_lwPlugin *next, *prev;
182 typedef struct st_lwKey {
183 struct st_lwKey *next, *prev;
186 unsigned int shape; /* ID_TCB, ID_BEZ2, etc. */
193 typedef struct st_lwEnvelope {
194 struct st_lwEnvelope *next, *prev;
198 lwKey *key; /* linked list of keys */
200 int behavior[ 2 ]; /* pre and post (extrapolation) */
201 lwPlugin *cfilter; /* linked list of channel filters */
206 #define BEH_CONSTANT 1
208 #define BEH_OSCILLATE 3
213 /* values that can be enveloped */
215 typedef struct st_lwEParam {
220 typedef struct st_lwVParam {
228 typedef struct st_lwClipStill {
232 typedef struct st_lwClipSeq {
233 char *prefix; /* filename before sequence digits */
234 char *suffix; /* after digits, e.g. extensions */
242 typedef struct st_lwClipAnim {
244 char *server; /* anim loader plug-in */
248 typedef struct st_lwClipXRef {
251 struct st_lwClip *clip;
254 typedef struct st_lwClipCycle {
260 typedef struct st_lwClip {
261 struct st_lwClip *next, *prev;
263 unsigned int type; /* ID_STIL, ID_ISEQ, etc. */
280 lwPlugin *ifilter; /* linked list of image filters */
282 lwPlugin *pfilter; /* linked list of pixel filters */
289 typedef struct st_lwTMap {
299 typedef struct st_lwImageMap {
315 #define PROJ_PLANAR 0
316 #define PROJ_CYLINDRICAL 1
317 #define PROJ_SPHERICAL 2
323 #define WRAP_REPEAT 2
324 #define WRAP_MIRROR 3
326 typedef struct st_lwProcedural {
333 typedef struct st_lwGradKey {
334 struct st_lwGradKey *next, *prev;
339 typedef struct st_lwGradient {
345 lwGradKey *key; /* array of gradient keys */
346 short *ikey; /* array of interpolation codes */
349 typedef struct st_lwTexture {
350 struct st_lwTexture *next, *prev;
368 /* values that can be textured */
370 typedef struct st_lwTParam {
373 lwTexture *tex; /* linked list of texture layers */
376 typedef struct st_lwCParam {
379 lwTexture *tex; /* linked list of texture layers */
385 typedef struct st_lwGlow {
392 typedef struct st_lwRMap {
399 typedef struct st_lwLine {
401 unsigned short flags;
405 typedef struct st_lwSurface {
406 struct st_lwSurface *next, *prev;
412 lwTParam specularity;
417 lwTParam translucency;
423 lwEParam color_hilite;
424 lwEParam color_filter;
429 lwPlugin *shader; /* linked list of shaders */
436 typedef struct st_lwVMap {
437 struct st_lwVMap *next, *prev;
443 int *vindex; /* array of point indexes */
444 int *pindex; /* array of polygon indexes */
448 typedef struct st_lwVMapPt {
450 int index; /* vindex or pindex element */
454 /* points and polygons */
456 typedef struct st_lwPoint {
458 int npols; /* number of polygons sharing the point */
459 int *pol; /* array of polygon indexes */
461 lwVMapPt *vm; /* array of vmap references */
464 typedef struct st_lwPolVert {
465 int index; /* index into the point array */
468 lwVMapPt *vm; /* array of vmap references */
471 typedef struct st_lwPolygon {
473 int part; /* part index */
474 int smoothgrp; /* smoothing group */
479 lwPolVert *v; /* array of vertex records */
482 typedef struct st_lwPointList {
484 int offset; /* only used during reading */
485 lwPoint *pt; /* array of points */
488 typedef struct st_lwPolygonList {
490 int offset; /* only used during reading */
491 int vcount; /* total number of vertices */
492 int voffset; /* only used during reading */
493 lwPolygon *pol; /* array of polygons */
497 /* geometry layers */
499 typedef struct st_lwLayer {
500 struct st_lwLayer *next, *prev;
508 lwPolygonList polygon;
510 lwVMap *vmap; /* linked list of vmaps */
516 typedef struct st_lwTagList {
518 int offset; /* only used during reading */
519 char **tag; /* array of strings */
525 typedef struct st_lwObject {
526 lwLayer *layer; /* linked list of layers */
527 lwEnvelope *env; /* linked list of envelopes */
528 lwClip *clip; /* linked list of clips */
529 lwSurface *surf; /* linked list of surfaces */
540 void lwFreeLayer( lwLayer *layer );
541 void lwFreeObject( lwObject *object );
542 lwObject *lwGetObject( char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos );
543 int lwValidateObject( char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos );
547 void lwFreePoints( lwPointList *point );
548 void lwFreePolygons( lwPolygonList *plist );
549 int lwGetPoints( picoMemStream_t *fp, int cksize, lwPointList *point );
550 void lwGetBoundingBox( lwPointList * point, float bbox[] );
551 int lwAllocPolygons( lwPolygonList *plist, int npols, int nverts );
552 int lwGetPolygons( picoMemStream_t *fp, int cksize, lwPolygonList *plist, int ptoffset );
553 void lwGetPolyNormals( lwPointList *point, lwPolygonList *polygon );
554 int lwGetPointPolygons( lwPointList *point, lwPolygonList *polygon );
555 int lwResolvePolySurfaces( lwPolygonList *polygon, lwTagList *tlist,
556 lwSurface **surf, int *nsurfs );
557 void lwGetVertNormals( lwPointList *point, lwPolygonList *polygon );
558 void lwFreeTags( lwTagList *tlist );
559 int lwGetTags( picoMemStream_t *fp, int cksize, lwTagList *tlist );
560 int lwGetPolygonTags( picoMemStream_t *fp, int cksize, lwTagList *tlist,
561 lwPolygonList *plist );
565 void lwFreeVMap( lwVMap *vmap );
566 lwVMap *lwGetVMap( picoMemStream_t *fp, int cksize, int ptoffset, int poloffset,
568 int lwGetPointVMaps( lwPointList *point, lwVMap *vmap );
569 int lwGetPolyVMaps( lwPolygonList *polygon, lwVMap *vmap );
573 void lwFreeClip( lwClip *clip );
574 lwClip *lwGetClip( picoMemStream_t *fp, int cksize );
575 lwClip *lwFindClip( lwClip *list, int index );
579 void lwFreeEnvelope( lwEnvelope *env );
580 lwEnvelope *lwGetEnvelope( picoMemStream_t *fp, int cksize );
581 lwEnvelope *lwFindEnvelope( lwEnvelope *list, int index );
582 float lwEvalEnvelope( lwEnvelope *env, float time );
586 void lwFreePlugin( lwPlugin *p );
587 void lwFreeTexture( lwTexture *t );
588 void lwFreeSurface( lwSurface *surf );
589 int lwGetTHeader( picoMemStream_t *fp, int hsz, lwTexture *tex );
590 int lwGetTMap( picoMemStream_t *fp, int tmapsz, lwTMap *tmap );
591 int lwGetImageMap( picoMemStream_t *fp, int rsz, lwTexture *tex );
592 int lwGetProcedural( picoMemStream_t *fp, int rsz, lwTexture *tex );
593 int lwGetGradient( picoMemStream_t *fp, int rsz, lwTexture *tex );
594 lwTexture *lwGetTexture( picoMemStream_t *fp, int bloksz, unsigned int type );
595 lwPlugin *lwGetShader( picoMemStream_t *fp, int bloksz );
596 lwSurface *lwGetSurface( picoMemStream_t *fp, int cksize );
597 lwSurface *lwDefaultSurface( void );
601 lwSurface *lwGetSurface5( picoMemStream_t *fp, int cksize, lwObject *obj );
602 int lwGetPolygons5( picoMemStream_t *fp, int cksize, lwPolygonList *plist, int ptoffset );
603 lwObject *lwGetObject5( char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos );
604 int lwValidateObject5( char *filename, picoMemStream_t *fp, unsigned int *failID, int *failpos );
608 void lwListFree( void *list, void ( *freeNode )( void * ) );
609 void lwListAdd( void **list, void *node );
610 void lwListInsert( void **vlist, void *vitem,
611 int ( *compare )( void *, void * ) );
615 float dot( float a[], float b[] );
616 void cross( float a[], float b[], float c[] );
617 void normalize( float v[] );
618 #define vecangle( a, b ) ( float ) acos( dot( a, b ) )
622 void set_flen( int i );
623 int get_flen( void );
624 void *getbytes( picoMemStream_t *fp, int size );
625 void skipbytes( picoMemStream_t *fp, int n );
626 int getI1( picoMemStream_t *fp );
627 short getI2( picoMemStream_t *fp );
628 int getI4( picoMemStream_t *fp );
629 unsigned char getU1( picoMemStream_t *fp );
630 unsigned short getU2( picoMemStream_t *fp );
631 unsigned int getU4( picoMemStream_t *fp );
632 int getVX( picoMemStream_t *fp );
633 float getF4( picoMemStream_t *fp );
634 char *getS0( picoMemStream_t *fp );
635 int sgetI1( unsigned char **bp );
636 short sgetI2( unsigned char **bp );
637 int sgetI4( unsigned char **bp );
638 unsigned char sgetU1( unsigned char **bp );
639 unsigned short sgetU2( unsigned char **bp );
640 unsigned int sgetU4( unsigned char **bp );
641 int sgetVX( unsigned char **bp );
642 float sgetF4( unsigned char **bp );
643 char *sgetS0( unsigned char **bp );
646 void revbytes( void *bp, int elsize, int elcount );
648 #define revbytes( b, s, c )