2 Tool for playing around with SWF bounding boxes.
4 Part of the swftools package.
6 Copyright (c) 2003 Matthias Kramm <kramm@quiss.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
22 #include "../config.h"
28 #include "../lib/rfxswf.h"
29 #include "../lib/args.h"
30 #include "../lib/log.h"
32 static char * filename = 0;
33 static char * outfilename = "output.swf";
34 static int optimize = 0;
35 static int swifty = 0;
36 static int verbose = 0;
37 static int showbbox = 0;
38 static int showorigbbox = 1;
39 static int expand = 0;
42 static struct options_t options[] = {
56 int args_callback_option(char*name,char*val)
58 if(!strcmp(name, "V")) {
59 printf("swfbbox - part of %s %s\n", PACKAGE, VERSION);
62 else if(!strcmp(name, "b")) {
64 if(showbbox == 1) showbbox = 0;
67 else if(!strcmp(name, "B")) {
71 else if(!strcmp(name, "O")) {
73 if(showorigbbox == 1) showorigbbox = 0;
76 else if(!strcmp(name, "S")) {
78 if(showorigbbox == 1) showorigbbox = 0;
81 else if(!strcmp(name, "c")) {
82 if(showorigbbox == 1) showorigbbox = 0;
87 else if(!strcmp(name, "v")) {
91 else if(!strcmp(name, "q")) {
96 else if(!strcmp(name, "e")) {
100 else if(!strcmp(name, "o")) {
105 printf("Unknown option: -%s\n", name);
111 int args_callback_longoption(char*name,char*val)
113 return args_long2shortoption(options, name, val);
115 void args_callback_usage(char *name)
118 printf("Usage: %s [-OS] file.swf\n", name);
120 printf("-h , --help Print help and exit\n");
121 printf("-b , --bbox Show movie bounding box (default)\n");
122 printf("-B , --newbbox Show recalculated (optimized/expanded) bounding box\n");
123 printf("-e , --expand Write out a new file using the recalculated bounding box\n");
124 printf("-O , --optimize Recalculate bounding boxes\n");
125 printf("-S , --swifty Print out transformed bounding boxes\n");
126 printf("-c , --clip Clip bounding boxes to movie size\n");
127 printf("-o , --output <filename> Set output filename to <filename> (for -O)\n");
128 printf("-v , --verbose Be more verbose\n");
129 printf("-V , --version Print program version and exit\n");
132 int args_callback_command(char*name,char*val)
135 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
142 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
144 void swf_Shape2Optimize(SHAPE2*shape)
147 shape->bbox = malloc(sizeof(SRECT));
148 *(shape->bbox) = swf_GetShapeBoundingBox(shape);
152 {char {x1 y1 x2 y2 x3 y3 x4 y4]]
157 char*depth2name[65536];
161 if(tag->id == ST_PLACEOBJECT)
163 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 2))
165 if(tag->id == ST_PLACEOBJECT3 && (tag->data[0] & 2))
172 if(tag->id == ST_PLACEOBJECT)
174 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20))
176 if(tag->id == ST_PLACEOBJECT3 && (tag->data[0] & 0x20))
181 char* getname(TAG*tag)
183 if(tag->id == ST_PLACEOBJECT)
185 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20)) {
187 tag->pos = 0;tag->readBit = 0;
188 swf_GetPlaceObject(tag, &o);
191 if(tag->id == ST_PLACEOBJECT3 && (tag->data[0] & 0x20)) {
193 tag->pos = 0;tag->readBit = 0;
194 swf_GetPlaceObject(tag, &o);
200 MATRIX getmatrix(TAG*tag)
203 tag->pos = 0;tag->readBit = 0;
204 swf_GetPlaceObject(tag, &o);
209 static int fontnum = -1;
210 static SWFFONT**fonts;
212 static void fontcallback1(void*self, U16 id,U8 * name)
215 static void fontcallback2(void*self, U16 id,U8 * name)
218 swf_FontExtract(c_swf,id,&fonts[fontnum]);
220 if(fonts[fontnum]) printf("Extracting font %d (%s)\n", id, name);
221 else printf("Extracting font %d (%s) failed\n", id, name);
226 typedef struct _textbounds
229 MATRIX m; // character transform matrix
232 typedef struct _placement
238 static placement_t* placements;
240 static placement_t* readPlacements(SWF*swf)
242 placement_t* p = (placement_t*)rfx_calloc(sizeof(placement_t)*65536);
243 TAG*tag = swf->firstTag;
245 if(swf_isPlaceTag(tag)) {
246 SWFPLACEOBJECT*po = rfx_alloc(sizeof(SWFPLACEOBJECT));
248 swf_GetPlaceObject(tag, po);
251 fprintf(stderr, "MOVE tags not supported with -c");
262 static void freePlacements(placement_t*p)
265 for(t=0;t<65536;t++) {
267 swf_PlaceObjectFree(p[t].po); p[t].po = 0;
273 SRECT swf_ClipRect(SRECT border, SRECT r)
275 if(r.xmax > border.xmax) r.xmax = border.xmax;
276 if(r.ymax > border.ymax) r.ymax = border.ymax;
277 if(r.xmax < border.xmin) r.xmax = border.xmin;
278 if(r.ymax < border.ymin) r.ymax = border.ymin;
280 if(r.xmin > border.xmax) r.xmin = border.xmax;
281 if(r.ymin > border.ymax) r.ymin = border.ymax;
282 if(r.xmin < border.xmin) r.xmin = border.xmin;
283 if(r.ymin < border.ymin) r.ymin = border.ymin;
287 static SRECT clipBBox(TAG*tag, SRECT mbbox, SRECT r)
289 int id = swf_GetDefineID(tag);
291 if(!placements[id].po) {
293 printf("Id %d is never set\n", id);
296 if(placements[id].num>1) {
298 printf("Id %d is set more than once\n", id);
301 m = placements[id].po->matrix;
303 fprintf(stderr, "Rotating PLACEOBJECTS are not supported with -c\n");
308 printf("ID %d\n", id);
309 swf_DumpMatrix(stdout, &m);
315 mbbox.xmin *= 65536.0/m.sx;
316 mbbox.xmax *= 65536.0/m.sx;
317 mbbox.ymin *= 65536.0/m.sy;
318 mbbox.ymax *= 65536.0/m.sy;
321 printf("border: %f/%f/%f/%f - rect: %f/%f/%f/%f\n",
333 r = swf_ClipRect(mbbox, r);
336 printf("new rect: %f/%f/%f/%f\n",
347 static void textcallback(void*self, int*chars, int*xpos, int nr, int fontid, int fontsize,
348 int xstart, int ystart, RGBA* color)
350 textbounds_t * bounds = (textbounds_t*)self;
353 for(t=0;t<fontnum;t++) {
354 if(fonts[t]->id == fontid) {
360 fprintf(stderr, "Font %d unknown\n", fontid);
364 /* This is an expensive operation- but what should we do, we
365 need the glyph's bounding boxes */
366 swf_FontCreateLayout(font);
370 printf("%d chars, font %d, size %d, at (%d,%d)\n", nr, fontid, fontsize, xstart, ystart);
373 /* not tested yet- the matrix/fontsize calculation is probably all wrong */
374 int x = xstart + xpos[t];
377 SRECT newglyphbbox, glyphbbox = font->layout->bounds[chars[t]];
378 MATRIX m = bounds->m;
381 if(chars[t] < font->numchars && font->glyph2ascii) {
382 ch = font->glyph2ascii[chars[t]];
386 p = swf_TurnPoint(p, &m);
388 m.sx = (m.sx * fontsize) / 1024;
389 m.sy = (m.sy * fontsize) / 1024;
390 m.r0 = (m.r0 * fontsize) / 1024;
391 m.r1 = (m.r1 * fontsize) / 1024;
395 newglyphbbox = swf_TurnRect(glyphbbox, &m);
399 swf_ExpandRect2(&(bounds->r), &newglyphbbox);
401 printf("%5d %c, %d %d %d %d (%d %d %d %d) -> %d %d %d %d\n",
403 glyphbbox.xmin, glyphbbox.ymin, glyphbbox.xmax, glyphbbox.ymax,
404 newglyphbbox.xmin, newglyphbbox.ymin, newglyphbbox.xmax, newglyphbbox.ymax,
405 bounds->r.xmin, bounds->r.ymin, bounds->r.xmax, bounds->r.ymax);
411 static void swf_OptimizeBoundingBoxes(SWF*swf)
413 TAG* tag = swf->firstTag;
416 if (tag->id == ST_DEFINESHAPE ||
417 tag->id == ST_DEFINESHAPE2 ||
418 tag->id == ST_DEFINESHAPE3 ||
419 tag->id == ST_DEFINESHAPE4) {
421 if(verbose) printf("%s\n", swf_TagGetName(tag));
422 swf_ParseDefineShape(tag, &s);
423 swf_Shape2Optimize(&s);
427 fprintf(stderr, "Internal error (5)\n");
431 *s.bbox = clipBBox(tag, swf->movieSize, *s.bbox);
433 swf_SetShape2(tag, &s);
435 if (tag->id == ST_DEFINETEXT || tag->id == ST_DEFINETEXT2) {
441 if(verbose) printf("%s\n", swf_TagGetName(tag));
443 if(verbose) printf("Extracting fonts...\n");
446 swf_FontEnumerate(swf,&fontcallback1,0);
447 fonts = (SWFFONT**)malloc(fontnum*sizeof(SWFFONT*));
448 memset(fonts, 0, fontnum*sizeof(SWFFONT*));
450 swf_FontEnumerate(swf,&fontcallback2,0);
453 memset(&bounds, 0, sizeof(bounds));
455 swf_SetTagPos(tag, 0);
457 swf_GetRect(tag,&oldbox);
458 swf_ResetReadBits(tag);
459 matrix_offset = tag->pos;
460 swf_GetMatrix(tag,&bounds.m);
461 swf_ParseDefineText(tag, textcallback, &bounds);
464 swf_DumpMatrix(stdout, &bounds.m);
465 printf("old: %d %d %d %d\n", oldbox.xmin, oldbox.ymin, oldbox.xmax, oldbox.ymax);
466 printf("new: %d %d %d %d\n", bounds.r.xmin, bounds.r.ymin, bounds.r.xmax, bounds.r.ymax);
469 bounds.r = clipBBox(tag, swf->movieSize, bounds.r);
472 /* now comes the tricky part:
473 we have to fiddle the data back in
474 thank heavens that the bbox is follow by a matrix
475 struct, which always starts on a byte boundary.
477 len = tag->len - matrix_offset;
479 memcpy(data, &tag->data[matrix_offset], len);
482 swf_SetRect(tag, &bounds.r);
483 swf_SetBlock(tag, data, len);
485 tag->pos = tag->readBit = 0;
491 static void showSwiftyOutput(SWF*swf)
493 TAG*tag = swf->firstTag;
495 printf("{\n\t{frame %d}\n", frame++);
498 if (tag->id == ST_SHOWFRAME) {
499 printf("}\n{\n\t{frame %d}\n", frame++);
501 if (swf_isPlaceTag(tag)) {
503 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
506 depth2name[swf_GetDepth(tag)] = getname(tag);
509 if (swf_isPlaceTag(tag)) {
510 MATRIX m = getmatrix(tag);
511 U16 id = depth2id[swf_GetDepth(tag)];
512 char*name = depth2name[swf_GetDepth(tag)];
514 SRECT bbox = bboxes[id];
516 p1.x = bbox.xmin; p1.y = bbox.ymin;
517 p2.x = bbox.xmax; p2.y = bbox.ymin;
518 p3.x = bbox.xmin; p3.y = bbox.ymax;
519 p4.x = bbox.xmax; p4.y = bbox.ymax;
520 p1 = swf_TurnPoint(p1, &m);
521 p2 = swf_TurnPoint(p2, &m);
522 p3 = swf_TurnPoint(p3, &m);
523 p4 = swf_TurnPoint(p4, &m);
525 sprintf(buf, "ID%d", id);name = buf;
527 //printf("\t#%.4f %.4f %.4f %.4f | %.4f %.4f\n", m.sx/65536.0, m.r1/65536.0, m.r0/65536.0, m.sy/65536.0, m.tx/20.0, m.ty/20.0);
528 printf("\t{%s {%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f}}\n", name,
529 p1.x/20.0, p1.y/20.0, p2.x/20.0, p2.y/20.0,
530 p3.x/20.0, p3.y/20.0, p4.x/20.0, p4.y/20.0);
536 static SRECT getMovieClipBBox(TAG*tag)
538 //TAG*tag = swf->firstTag;
542 memset(depth2id, 0, sizeof(depth2id));
544 memset(&movieSize,0,sizeof(SRECT));
546 while (tag && tag->id != ST_END) {
547 if (swf_isPlaceTag(tag)) {
549 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
552 if (swf_isPlaceTag(tag)) {
553 MATRIX m = getmatrix(tag);
554 U16 id = depth2id[swf_GetDepth(tag)];
555 SRECT bbox = bboxes[id];
557 SRECT tbbox = swf_TurnRect(bbox, &m);
558 swf_ExpandRect2(&movieSize, &tbbox);
565 static SRECT getSWFBBox(SWF*swf)
567 SRECT movieSize = getMovieClipBBox(swf->firstTag);
572 int main (int argc,char ** argv)
579 memset(bboxes, 0, sizeof(bboxes));
580 memset(depth2name, 0, sizeof(depth2name));
582 processargs(argc, argv);
583 initLog(0,0,0,0,0,verbose?LOGLEVEL_DEBUG:LOGLEVEL_WARNING);
586 fprintf(stderr, "You must supply a filename.\n");
590 fi = open(filename,O_RDONLY|O_BINARY);
594 perror("Couldn't open file: ");
597 if FAILED(swf_ReadSWF(fi,&swf))
599 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
605 swf_OptimizeTagOrder(&swf);
608 placements = readPlacements(&swf);
613 /* Optimize bounding boxes in case -O flag was set */
615 swf_OptimizeBoundingBoxes(&swf);
618 /* Create an ID to Bounding Box table */
621 if(swf_isDefiningTag(tag)) {
622 int id = swf_GetDefineID(tag);
623 if(tag->id != ST_DEFINESPRITE) {
624 bboxes[id] = swf_GetDefineBBox(tag);
626 swf_UnFoldSprite(tag);
627 bboxes[id] = getMovieClipBBox(tag);
630 printf("sprite %d is %.2fx%.2f\n", id,
631 (bboxes[id].xmax - bboxes[id].xmin)/20.0,
632 (bboxes[id].ymax - bboxes[id].ymin)/20.0);
639 /* Create an ID->Bounding Box table for all bounding boxes */
641 showSwiftyOutput(&swf);
644 oldMovieSize = swf.movieSize;
645 newMovieSize = getSWFBBox(&swf);
647 if(optimize || expand) {
650 swf.movieSize = newMovieSize;
652 fi = open(outfilename, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
653 if(swf_WriteSWF(fi, &swf) < 0) {
654 fprintf(stderr, "Error writing file %s", outfilename);
663 printf("Real Movie Size: ");
664 printf("%.2f x %.2f :%.2f :%.2f\n",
665 (newMovieSize.xmax-newMovieSize.xmin)/20.0,
666 (newMovieSize.ymax-newMovieSize.ymin)/20.0,
667 (newMovieSize.xmin)/20.0,
668 (newMovieSize.ymin)/20.0
673 printf("Original Movie Size: ");
674 printf("%.2f x %.2f :%.2f :%.2f\n",
675 (oldMovieSize.xmax-oldMovieSize.xmin)/20.0,
676 (oldMovieSize.ymax-oldMovieSize.ymin)/20.0,
677 (oldMovieSize.xmin)/20.0,
678 (oldMovieSize.ymin)/20.0
685 freePlacements(placements);