1 /* vi: set sts=2 sw=2 :*/
5 Library for creating and reading SWF files or parts of it.
6 There's a module directory which provides some extended functionality.
7 Most modules are included at the bottom of this file.
9 Part of the swftools package.
11 Copyright (c) 2000, 2001 Rainer Böhme <rfxswf@reflex-studio.de>
13 This file is distributed under the GPL, see file COPYING for details
23 #define _JPEGLIB_INCLUDED_
24 #endif // HAVE_JPEGLIB_H
25 #endif // HAVE_LIBJPEG
30 #define _ZLIB_INCLUDED_
35 #include "lame/lame.h"
41 #define MALLOC_SIZE 128
42 #define INSERT_RFX_TAG
44 #define MEMSIZE(l) (((l/MALLOC_SIZE)+1)*MALLOC_SIZE)
47 // inline wrapper functions
49 TAG * swf_NextTag(TAG * t) { return t->next; }
50 TAG * swf_PrevTag(TAG * t) { return t->prev; }
51 int swf_GetFrameNo(TAG * t) { return t->frame; }
52 U16 swf_GetTagID(TAG * t) { return t->id; }
53 U32 swf_GetTagLen(TAG * t) { return t->len; }
54 U8* swf_GetTagLenPtr(TAG * t) { return &(t->data[t->len]); }
55 U32 swf_GetTagPos(TAG * t) { return t->pos; }
57 // Basic Data Access Functions
59 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
60 #define swf_ResetWriteBits(tag) if (tag->writeBit) { tag->writeBit = 0; }
62 // for future purpose: avoid high level lib functions to change tagpos/bitpos
64 #define swf_SaveTagPos(tag)
65 #define swf_RestoreTagPos(tag)
67 void swf_SetTagPos(TAG * t,U32 pos)
68 { swf_ResetReadBits(t);
69 if (pos<=t->len) t->pos = pos;
71 else fprintf(stderr,"SetTagPos() out of bounds: TagID = %i\n",t->id);
76 { swf_ResetReadBits(t);
79 { fprintf(stderr,"GetU8() out of bounds: TagID = %i\n",t->id);
83 return t->data[t->pos++];
86 U16 swf_GetU16(TAG * t)
90 if (t->pos>(t->len-2))
91 { fprintf(stderr,"GetU16() out of bounds: TagID = %i\n",t->id);
95 res = t->data[t->pos] | (t->data[t->pos+1]<<8);
100 U32 swf_GetU32(TAG * t)
102 swf_ResetReadBits(t);
104 if (t->pos>(t->len-4))
105 { fprintf(stderr,"GetU32() out of bounds: TagID = %i\n",t->id);
109 res = t->data[t->pos] | (t->data[t->pos+1]<<8) |
110 (t->data[t->pos+2]<<16) | (t->data[t->pos+3]<<24);
115 int swf_GetBlock(TAG * t,U8 * b,int l)
116 // returns number of bytes written (<=l)
117 // b = NULL -> skip data
118 { swf_ResetReadBits(t);
119 if ((t->len-t->pos)<l) l=t->len-t->pos;
120 if (b && l) memcpy(b,&t->data[t->pos],l);
125 int swf_SetBlock(TAG * t,U8 * b,int l)
126 // Appends Block to the end of Tagdata, returns size
127 { U32 newlen = t->len + l;
128 swf_ResetWriteBits(t);
129 if (newlen>t->memsize)
130 { U32 newmem = MEMSIZE(newlen);
131 U8 * newdata = (U8*)((t->data)?realloc(t->data,newmem):malloc(newmem));
135 fprintf(stderr,"Fatal Error: malloc()/realloc() failed (1). (%d bytes)\n", newmem);
143 if (b) memcpy(&t->data[t->len],b,l);
144 else memset(&t->data[t->len],0x00,l);
149 int swf_SetU8(TAG * t,U8 v)
150 { swf_ResetWriteBits(t);
151 if ((t->len+1)>t->memsize) return (swf_SetBlock(t,&v,1)==1)?0:-1;
152 t->data[t->len++] = v;
156 int swf_SetU16(TAG * t,U16 v)
161 swf_ResetWriteBits(t);
162 if ((t->len+2)>t->memsize) return (swf_SetBlock(t,a,2)==2)?0:-1;
163 t->data[t->len++] = a[0];
164 t->data[t->len++] = a[1];
168 int swf_SetU32(TAG * t,U32 v)
170 a[0] = v&0xff; // to ensure correct handling of non-intel byteorder
175 swf_ResetWriteBits(t);
176 if ((t->len+4)>t->memsize) return (swf_SetBlock(t,a,4)==4)?0:-1;
177 t->data[t->len++] = a[0];
178 t->data[t->len++] = a[1];
179 t->data[t->len++] = a[2];
180 t->data[t->len++] = a[3];
184 U32 swf_GetBits(TAG * t,int nbits)
186 if (!nbits) return 0;
187 if (!t->readBit) t->readBit = 0x80;
190 if (t->data[t->pos]&t->readBit) res|=1;
194 { if (nbits) t->readBit = 0x80;
197 { fprintf(stderr,"GetBits() out of bounds: TagID = %i\n",t->id);
207 S32 swf_GetSBits(TAG * t,int nbits)
208 { U32 res = swf_GetBits(t,nbits);
209 if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits);
213 U32 reader_GetBits(struct reader_t*reader, int nbits)
214 { return reader_readbits(reader, nbits);
216 S32 reader_GetSBits(struct reader_t*reader, int nbits)
217 { U32 res = reader_readbits(reader, nbits);
218 if (res&(1<<(nbits-1))) res|=(0xffffffff<<nbits);
222 int swf_SetBits(TAG * t,U32 v,int nbits)
223 { U32 bm = 1<<(nbits-1);
227 { if (FAILED(swf_SetU8(t,0))) return -1;
230 if (v&bm) t->data[t->len-1] |= t->writeBit;
238 // Advanced Data Access Functions
240 int swf_SetRGB(TAG * t,RGBA * col)
243 { swf_SetU8(t,col->r);
246 } else swf_SetBlock(t,NULL,3);
249 void swf_GetRGB(TAG * t, RGBA * col)
254 col->r = swf_GetU8(t);
255 col->g = swf_GetU8(t);
256 col->b = swf_GetU8(t);
260 int swf_SetRGBA(TAG * t,RGBA * col)
263 { swf_SetU8(t,col->r);
267 } else swf_SetBlock(t,NULL,4);
270 void swf_GetRGBA(TAG * t, RGBA * col)
275 col->r = swf_GetU8(t);
276 col->g = swf_GetU8(t);
277 col->b = swf_GetU8(t);
278 col->a = swf_GetU8(t);
281 void swf_GetGradient(TAG * tag, GRADIENT * gradient, char alpha)
287 gradient->num = swf_GetU8(tag);
288 for(t=0;t<gradient->num;t++)
293 gradient->ratios[t] = swf_GetU8(tag);
295 swf_GetRGB(tag, &gradient->rgba[t]);
297 swf_GetRGBA(tag, &gradient->rgba[t]);
301 int swf_CountBits(U32 v,int nbits)
319 return (n>nbits)?n:nbits;
322 int swf_GetRect(TAG * t,SRECT * r)
325 if(!t) {r->xmin=r->xmax=r->ymin=r->ymax;return 0;}
327 nbits = (int) swf_GetBits(t,5);
328 r->xmin = swf_GetSBits(t,nbits);
329 r->xmax = swf_GetSBits(t,nbits);
330 r->ymin = swf_GetSBits(t,nbits);
331 r->ymax = swf_GetSBits(t,nbits);
335 int reader_GetRect(struct reader_t*reader,SRECT * r)
339 nbits = (int) reader_GetBits(reader,5);
340 r->xmin = reader_GetSBits(reader,nbits);
341 r->xmax = reader_GetSBits(reader,nbits);
342 r->ymin = reader_GetSBits(reader,nbits);
343 r->ymax = reader_GetSBits(reader,nbits);
347 int swf_SetRect(TAG * t,SRECT * r)
350 nbits = swf_CountBits(r->xmin,0);
351 nbits = swf_CountBits(r->xmax,nbits);
352 nbits = swf_CountBits(r->ymin,nbits);
353 nbits = swf_CountBits(r->ymax,nbits);
355 fprintf(stderr, "rfxswf: Warning: num_bits overflow in swf_SetRect\n");
359 swf_SetBits(t,nbits,5);
360 swf_SetBits(t,r->xmin,nbits);
361 swf_SetBits(t,r->xmax,nbits);
362 swf_SetBits(t,r->ymin,nbits);
363 swf_SetBits(t,r->ymax,nbits);
368 void swf_ExpandRect(SRECT*src, SPOINT add)
370 if(add.x < src->xmin)
372 if(add.x > src->xmax)
374 if(add.y < src->ymin)
376 if(add.y > src->ymax)
379 void swf_ExpandRect2(SRECT*src, SRECT*add)
381 if(add->xmin < src->xmin)
382 src->xmin = add->xmin;
383 if(add->ymin < src->ymin)
384 src->ymin = add->ymin;
385 if(add->xmax > src->xmax)
386 src->xmax = add->xmax;
387 if(add->ymax > src->ymax)
388 src->ymax = add->ymax;
390 SPOINT swf_TurnPoint(SPOINT p, MATRIX* m)
393 r.x = (int)(m->sx*(1/65536.0)*p.x + m->r0*(1/65536.0)*p.y + 0.5) + m->tx;
394 r.y = (int)(m->r1*(1/65536.0)*p.x + m->sy*(1/65536.0)*p.y + 0.5) + m->ty;
397 SRECT swf_TurnRect(SRECT r, MATRIX* m)
400 SPOINT p1,p2,p3,p4,pp1,pp2,pp3,pp4;
401 p1.x = r.xmin;p1.y = r.ymin;
402 p2.x = r.xmax;p2.y = r.ymin;
403 p3.x = r.xmin;p3.y = r.ymax;
404 p4.x = r.xmax;p4.y = r.ymax;
405 pp1 = swf_TurnPoint(p1, m);
406 pp2 = swf_TurnPoint(p2, m);
407 pp3 = swf_TurnPoint(p3, m);
408 pp4 = swf_TurnPoint(p4, m);
409 g.xmin = g.xmax = pp1.x;
410 g.ymin = g.ymax = pp1.y;
411 swf_ExpandRect(&g, pp2);
412 swf_ExpandRect(&g, pp3);
413 swf_ExpandRect(&g, pp4);
418 int swf_GetMatrix(TAG * t,MATRIX * m)
425 { m->sx = m->sy = 0x10000;
431 swf_ResetReadBits(t);
433 if (swf_GetBits(t,1))
434 { nbits = swf_GetBits(t,5);
435 m->sx = swf_GetSBits(t,nbits);
436 m->sy = swf_GetSBits(t,nbits);
438 else m->sx = m->sy = 0x10000;
440 if (swf_GetBits(t,1))
441 { nbits = swf_GetBits(t,5);
442 m->r0 = swf_GetSBits(t,nbits);
443 m->r1 = swf_GetSBits(t,nbits);
445 else m->r0 = m->r1 = 0x0;
447 nbits = swf_GetBits(t,5);
448 m->tx = swf_GetSBits(t,nbits);
449 m->ty = swf_GetSBits(t,nbits);
454 int swf_SetMatrix(TAG * t,MATRIX * m)
460 ma.sx = ma.sy = 0x10000;
465 swf_ResetWriteBits(t);
467 if ((m->sx==0x10000)&&(m->sy==0x10000)) swf_SetBits(t,0,1);
469 { swf_SetBits(t,1,1);
470 nbits = swf_CountBits(m->sx,0);
471 nbits = swf_CountBits(m->sy,nbits);
473 fprintf(stderr,"rfxswf: Error: matrix values too large\n");
476 swf_SetBits(t,nbits,5);
477 swf_SetBits(t,m->sx,nbits);
478 swf_SetBits(t,m->sy,nbits);
481 if ((!m->r0)&&(!m->r1)) swf_SetBits(t,0,1);
483 { swf_SetBits(t,1,1);
484 nbits = swf_CountBits(m->r0,0);
485 nbits = swf_CountBits(m->r1,nbits);
487 fprintf(stderr,"rfxswf: Error: matrix values too large\n");
490 swf_SetBits(t,nbits,5);
491 swf_SetBits(t,m->r0,nbits);
492 swf_SetBits(t,m->r1,nbits);
495 nbits = swf_CountBits(m->tx,0);
496 nbits = swf_CountBits(m->ty,nbits);
498 fprintf(stderr,"rfxswf: Error: matrix values too large\n");
501 swf_SetBits(t,nbits,5);
502 swf_SetBits(t,m->tx,nbits);
503 swf_SetBits(t,m->ty,nbits);
508 int swf_GetCXForm(TAG * t,CXFORM * cx,U8 alpha) //FIXME: alpha should be type bool
516 cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;
517 cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;
521 swf_ResetReadBits(t);
522 hasadd = swf_GetBits(t,1);
523 hasmul = swf_GetBits(t,1);
524 nbits = swf_GetBits(t,4);
527 { cx->r0 = (S16)swf_GetSBits(t,nbits);
528 cx->g0 = (S16)swf_GetSBits(t,nbits);
529 cx->b0 = (S16)swf_GetSBits(t,nbits);
531 cx->a0 = (S16)swf_GetSBits(t,nbits);
535 { cx->r1 = (S16)swf_GetSBits(t,nbits);
536 cx->g1 = (S16)swf_GetSBits(t,nbits);
537 cx->b1 = (S16)swf_GetSBits(t,nbits);
539 cx->a1 = (S16)swf_GetSBits(t,nbits);
545 int swf_SetCXForm(TAG * t,CXFORM * cx,U8 alpha)
553 cx->a0 = cx->r0 = cx->g0 = cx->b0 = 256;
554 cx->a1 = cx->r1 = cx->g1 = cx->b1 = 0;
564 hasmul = (cx->a0!=256)||(cx->r0!=256)||(cx->g0!=256)||(cx->b0!=256);
565 hasadd = cx->a1|cx->r1|cx->g1|cx->b1;
568 { if (alpha) nbits = swf_CountBits((S32)cx->a0,nbits);
569 nbits = swf_CountBits((S32)cx->r0,nbits);
570 nbits = swf_CountBits((S32)cx->g0,nbits);
571 nbits = swf_CountBits((S32)cx->b0,nbits);
575 { if (alpha) nbits = swf_CountBits((S32)cx->a1,nbits);
576 nbits = swf_CountBits((S32)cx->r1,nbits);
577 nbits = swf_CountBits((S32)cx->g1,nbits);
578 nbits = swf_CountBits((S32)cx->b1,nbits);
581 swf_ResetWriteBits(t);
582 swf_SetBits(t,hasadd?1:0,1);
583 swf_SetBits(t,hasmul?1:0,1);
584 swf_SetBits(t,nbits,4);
587 { swf_SetBits(t,cx->r0,nbits);
588 swf_SetBits(t,cx->g0,nbits);
589 swf_SetBits(t,cx->b0,nbits);
590 if (alpha) swf_SetBits(t,cx->a0,nbits);
594 { swf_SetBits(t,cx->r1,nbits);
595 swf_SetBits(t,cx->g1,nbits);
596 swf_SetBits(t,cx->b1,nbits);
597 if (alpha) swf_SetBits(t,cx->a1,nbits);
603 int swf_GetPoint(TAG * t,SPOINT * p) { return 0; }
604 int swf_SetPoint(TAG * t,SPOINT * p) { return 0; }
606 // Tag List Manipulating Functions
608 int swf_UpdateFrame(TAG * t,S8 delta)
609 // returns number of frames
619 TAG * swf_InsertTag(TAG * after,U16 id) // updates frames, if nescessary
622 t = (TAG *)malloc(sizeof(TAG));
624 { memset(t,0x00,sizeof(TAG));
628 { t->frame = after->frame;
630 t->next = after->next;
632 if (t->next) t->next->prev = t;
634 if (id==ST_SHOWFRAME) swf_UpdateFrame(t->next,+1);
640 int swf_DeleteTag(TAG * t)
643 if (t->id==ST_SHOWFRAME) swf_UpdateFrame(t->next,-1);
645 if (t->prev) t->prev->next = t->next;
646 if (t->next) t->next->prev = t->prev;
648 if (t->data) free(t->data);
653 TAG * swf_ReadTag(struct reader_t*reader, TAG * prev)
659 if (reader->read(reader, &raw, 2) !=2 ) return NULL;
667 if (reader->read(reader, &len, 4) != 4) return NULL;
671 if (id==ST_DEFINESPRITE) len = 2*sizeof(U16);
672 // Sprite handling fix: Flaten sprite tree
674 t = (TAG *)malloc(sizeof(TAG));
679 fprintf(stderr,"Fatal Error: malloc()/realloc() failed (2). (%d bytes)\n", sizeof(TAG));
684 memset(t,0x00,sizeof(TAG));
690 { t->data = (U8*)malloc(t->len);
694 fprintf(stderr,"Fatal Error: malloc()/realloc() failed (3). (%d bytes)\n", t->len);
699 if (reader->read(reader, t->data, t->len) != t->len) return NULL;
703 { t->frame = prev->frame+((prev->id==ST_SHOWFRAME)?1:0);
711 int swf_DefineSprite_GetRealSize(TAG * t);
713 int swf_WriteTag2(struct writer_t*writer, TAG * t)
714 // returns tag length in bytes (incl. Header), -1 = Error
715 // writer = 0 -> no output
722 len = (t->id==ST_DEFINESPRITE)?swf_DefineSprite_GetRealSize(t):t->len;
724 short_tag = len<0x3f;
728 { raw[0] = SWAP16(len|((t->id&0x3ff)<<6));
729 if (writer->write(writer,raw,2)!=2)
732 fprintf(stderr,"WriteTag() failed: Short Header.\n");
739 raw[0] = SWAP16((t->id<<6)|0x3f);
740 if (writer->write(writer,raw,2)!=2)
743 fprintf(stderr,"WriteTag() failed: Long Header (1).\n");
749 if (writer->write(writer,&len,4)!=4)
752 fprintf(stderr,"WriteTag() failed: Long Header (2).\n");
759 { if (writer->write(writer,t->data,t->len)!=t->len)
762 fprintf(stderr,"WriteTag() failed: Data.\n");
768 else if (t->len) fprintf(stderr,"WriteTag(): Tag Data Error, id=%i\n",t->id);
772 return t->len+(short_tag?2:6);
775 int swf_WriteTag(int handle, TAG * t)
777 struct writer_t writer;
779 return swf_WriteTag2(0, t);
780 writer_init_filewriter(&writer, handle);
781 return swf_WriteTag2(&writer, t);
784 int swf_DefineSprite_GetRealSize(TAG * t)
785 // Sprite Handling: Helper function to pack DefineSprite-Tag
787 if(len>4) { // folded sprite
791 { t = swf_NextTag(t);
792 if (t && t->id!=ST_DEFINESPRITE) len += swf_WriteTag(-1, t);
794 } while (t&&(t->id!=ST_END));
798 void swf_UnFoldSprite(TAG * t)
803 U16 spriteid,spriteframes;
805 if(t->id!=ST_DEFINESPRITE)
807 if(t->len<=4) // not folded
812 spriteid = swf_GetU16(t); //id
813 spriteframes = swf_GetU16(t); //frames
825 if(id == ST_DEFINESPRITE && len<=4)
830 it = swf_InsertTag(next, id);
835 { it->data = (U8*)malloc(it->len);
836 it->memsize = it->len;
837 swf_GetBlock(t, it->data, it->len);
844 free(t->data); t->data = 0;
845 t->memsize = t->len = t->pos = 0;
847 swf_SetU16(t, spriteid);
848 swf_SetU16(t, spriteframes);
851 void swf_FoldSprite(TAG * t)
856 if(t->id!=ST_DEFINESPRITE)
859 fprintf(stderr, "Error: Sprite has no ID!");
863 /* sprite is already folded */
870 t->len = t->pos = t->memsize = 0;
875 t = swf_NextTag(sprtag);
880 if(t->id==ST_SHOWFRAME) frames++;
881 if(t->id == ST_DEFINESPRITE && t->len<=4)
888 fprintf(stderr, "rfxswf error: sprite doesn't end(1)\n");
890 swf_SetU16(sprtag, id);
891 swf_SetU16(sprtag, frames);
893 t = swf_NextTag(sprtag);
899 swf_SetU16(sprtag,t->len|(t->id<<6));
901 swf_SetU16(sprtag,0x3f|(t->id<<6));
902 swf_SetU32(sprtag,t->len);
905 swf_SetBlock(sprtag,t->data, t->len);
907 if(t->id == ST_DEFINESPRITE && t->len<=4)
916 fprintf(stderr, "rfxswf error: sprite doesn't end(2)\n");
922 void swf_FoldAll(SWF*swf)
924 TAG*tag = swf->firstTag;
926 if(tag->id == ST_DEFINESPRITE)
928 tag = swf_NextTag(tag);
932 void swf_UnFoldAll(SWF*swf)
934 TAG*tag = swf->firstTag;
936 if(tag->id == ST_DEFINESPRITE)
937 swf_UnFoldSprite(tag);
942 void swf_OptimizeTagOrder(SWF*swf)
949 /* at the moment, we don't actually do optimizing,
950 only fixing of non-spec-conformant things like
960 if(tag->id == ST_DEFINESPRITE) {
962 /* ??? all sprites are supposed to be unfolded */
963 fprintf(stderr, "librfxswf error - internal error in OptimizeTagOrder/UnfoldAll\n");
973 /* move non-sprite tags out of sprite */
974 if(!swf_isAllowedSpriteTag(tag) || level>=2) {
975 /* remove tag from current position */
976 tag->prev->next = tag->next;
978 tag->next->prev = tag->prev;
980 /* insert before tag level0 */
982 tag->prev = level0->prev;
984 tag->prev->next = tag;
988 if(tag->id == ST_END) {
999 int swf_ReadSWF2(struct reader_t*reader, SWF * swf) // Reads SWF to memory (malloc'ed), returns length or <0 if fails
1001 if (!swf) return -1;
1002 memset(swf,0x00,sizeof(SWF));
1004 { char b[32]; // read Header
1008 struct reader_t zreader;
1010 if ((len = reader->read(reader ,b,8))<8) return -1;
1012 if (b[0]!='F' && b[0]!='C') return -1;
1013 if (b[1]!='W') return -1;
1014 if (b[2]!='S') return -1;
1015 swf->fileVersion = b[3];
1016 swf->compressed = (b[0]=='C')?1:0;
1017 swf->fileSize = GET32(&b[4]);
1019 if(swf->compressed) {
1020 reader_init_zlibinflate(&zreader, reader);
1024 reader_GetRect(reader, &swf->movieSize);
1025 reader->read(reader, &swf->frameRate, 2);
1026 swf->frameRate = SWAP16(swf->frameRate);
1027 reader->read(reader, &swf->frameCount, 2);
1028 swf->frameCount = SWAP16(swf->frameCount);
1030 /* read tags and connect to list */
1032 while (t) t = swf_ReadTag(reader,t);
1033 swf->firstTag = t1.next;
1034 t1.next->prev = NULL;
1040 int swf_ReadSWF(int handle, SWF * swf)
1042 struct reader_t reader;
1043 reader_init_filereader(&reader, handle);
1044 return swf_ReadSWF2(&reader, swf);
1047 int swf_WriteSWF2(struct writer_t*writer, SWF * swf) // Writes SWF to file, returns length or <0 if fails
1051 struct writer_t zwriter;
1054 if (!swf) return -1;
1056 // Insert REFLEX Tag
1058 #ifdef INSERT_RFX_TAG
1060 if (swf->firstTag && swf_NextTag(swf->firstTag))
1061 if (swf_GetTagID(swf_NextTag(swf->firstTag))!=ST_REFLEX)
1062 swf_SetBlock(swf_InsertTag(swf->firstTag,ST_REFLEX),"rfx",3);
1064 #endif // INSERT_RFX_TAG
1066 // Count Frames + File Size
1073 { len += swf_WriteTag(-1, t);
1074 if (t->id==ST_SHOWFRAME) frameCount++;
1082 memset(&t1,0x00,sizeof(TAG));
1086 { // measure header file size
1089 memset(&t2,0x00,sizeof(TAG));
1092 swf_SetRect(&t2, &swf->movieSize);
1093 swf_SetU16(&t2, swf->frameRate);
1094 swf_SetU16(&t2, swf->frameCount);
1095 l = swf_GetTagLen(&t2)+8;
1099 if(len) {// don't touch headers without tags
1100 swf->fileSize = fileSize;
1101 swf->frameCount = frameCount;
1104 if(swf->compressed) {
1106 writer->write(writer, id, 3);
1110 writer->write(writer, id, 3);
1113 writer->write(writer, &swf->fileVersion, 1);
1114 PUT32(b4, swf->fileSize);
1115 writer->write(writer, b4, 4);
1117 if(swf->compressed) {
1118 writer_init_zlibdeflate(&zwriter, writer);
1122 swf_SetRect(&t1,&swf->movieSize);
1123 swf_SetU16(&t1,swf->frameRate);
1124 swf_SetU16(&t1,swf->frameCount);
1128 int ret = writer->write(writer,b,swf_GetTagLen(&t1));
1129 if (ret!=swf_GetTagLen(&t1))
1132 fprintf(stderr, "ret:%d\n",ret);
1134 fprintf(stderr,"WriteSWF() failed: Header.\n");
1141 { if (swf_WriteTag2(writer, t)<0) return -1;
1144 writer->finish(writer); //e.g. flush zlib buffers
1147 return (int)fileSize;
1150 int swf_WriteSWF(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
1152 struct writer_t writer;
1153 swf->compressed = 0;
1155 return swf_WriteSWF2(&writer, swf);
1156 writer_init_filewriter(&writer, handle);
1157 return swf_WriteSWF2(&writer, swf);
1160 int swf_WriteSWC(int handle, SWF * swf) // Writes SWF to file, returns length or <0 if fails
1162 struct writer_t writer;
1163 swf->compressed = 1;
1165 return swf_WriteSWF2(&writer, swf);
1166 writer_init_filewriter(&writer, handle);
1167 return swf_WriteSWF2(&writer, swf);
1170 int swf_WriteHeader2(struct writer_t*writer,SWF * swf)
1173 memcpy(&myswf,swf,sizeof(SWF));
1175 return swf_WriteSWF2(writer, &myswf);
1178 int swf_WriteHeader(int handle,SWF * swf)
1181 memcpy(&myswf,swf,sizeof(SWF));
1183 return swf_WriteSWF(handle, &myswf);
1186 int swf_WriteCGI(SWF * swf)
1190 len = swf_WriteSWF(-1,swf);
1192 if (len<0) return -1;
1194 sprintf(s,"Content-type: application/x-shockwave-flash\n"
1195 "Accept-Ranges: bytes\n"
1196 "Content-Length: %lu\n"
1197 "Expires: Thu, 13 Apr 2000 23:59:59 GMT\n"
1200 write(fileno(stdout),s,strlen(s));
1201 return swf_WriteSWF(fileno(stdout),swf);
1204 void swf_FreeTags(SWF * swf) // Frees all malloc'ed memory for tags
1205 { TAG * t = swf->firstTag;
1208 { TAG * tnew = t->next;
1209 if (t->data) free(t->data);
1215 // include advanced functions
1217 #include "modules/swfdump.c"
1218 #include "modules/swfshape.c"
1219 #include "modules/swftext.c"
1220 #include "modules/swfobject.c"
1221 #include "modules/swfbutton.c"
1222 #include "modules/swftools.c"
1223 #include "modules/swfcgi.c"
1224 #include "modules/swfbits.c"
1225 #include "modules/swfaction.c"
1226 #include "modules/swfsound.c"