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")) {
95 else if(!strcmp(name, "e")) {
99 else if(!strcmp(name, "o")) {
104 printf("Unknown option: -%s\n", name);
110 int args_callback_longoption(char*name,char*val)
112 return args_long2shortoption(options, name, val);
114 void args_callback_usage(char *name)
117 printf("Usage: %s [-OS] file.swf\n", name);
119 printf("-h , --help Print help and exit\n");
120 printf("-b , --bbox Show movie bounding box (default)\n");
121 printf("-B , --newbbox Show recalculated (optimized/expanded) bounding box\n");
122 printf("-e , --expand Write out a new file using the recalculated bounding box\n");
123 printf("-O , --optimize Recalculate bounding boxes\n");
124 printf("-S , --swifty Print out transformed bounding boxes\n");
125 printf("-c , --clip Clip bounding boxes to movie size\n");
126 printf("-o , --output <filename> Set output filename to <filename> (for -O)\n");
127 printf("-v , --verbose Be more verbose\n");
128 printf("-V , --version Print program version and exit\n");
131 int args_callback_command(char*name,char*val)
134 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
141 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
143 void swf_Shape2Optimize(SHAPE2*shape)
146 shape->bbox = malloc(sizeof(SRECT));
147 *(shape->bbox) = swf_GetShapeBoundingBox(shape);
151 {char {x1 y1 x2 y2 x3 y3 x4 y4]]
156 char*depth2name[65536];
160 if(tag->id == ST_PLACEOBJECT)
162 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 2))
169 if(tag->id == ST_PLACEOBJECT)
171 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20))
176 char* getname(TAG*tag)
178 if(tag->id == ST_PLACEOBJECT)
180 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20)) {
182 tag->pos = 0;tag->readBit = 0;
183 swf_GetPlaceObject(tag, &o);
189 MATRIX getmatrix(TAG*tag)
192 tag->pos = 0;tag->readBit = 0;
193 swf_GetPlaceObject(tag, &o);
198 static int fontnum = -1;
199 static SWFFONT**fonts;
201 static void fontcallback1(void*self, U16 id,U8 * name)
204 static void fontcallback2(void*self, U16 id,U8 * name)
207 swf_FontExtract(c_swf,id,&fonts[fontnum]);
209 if(fonts[fontnum]) printf("Extracting font %d (%s)\n", id, name);
210 else printf("Extracting font %d (%s) failed\n", id, name);
215 typedef struct _textbounds
218 MATRIX m; // character transform matrix
221 typedef struct _placement
227 static placement_t* placements;
229 static placement_t* readPlacements(SWF*swf)
231 placement_t* p = (placement_t*)rfx_calloc(sizeof(placement_t)*65536);
232 TAG*tag = swf->firstTag;
234 if(tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
235 SWFPLACEOBJECT*po = rfx_alloc(sizeof(SWFPLACEOBJECT));
237 swf_GetPlaceObject(tag, po);
240 fprintf(stderr, "MOVE tags not supported with -c");
251 static void freePlacements(placement_t*p)
254 for(t=0;t<65536;t++) {
256 swf_PlaceObjectFree(p[t].po); p[t].po = 0;
262 SRECT swf_ClipRect(SRECT border, SRECT r)
264 if(r.xmax > border.xmax) r.xmax = border.xmax;
265 if(r.ymax > border.ymax) r.ymax = border.ymax;
266 if(r.xmax < border.xmin) r.xmax = border.xmin;
267 if(r.ymax < border.ymin) r.ymax = border.ymin;
269 if(r.xmin > border.xmax) r.xmin = border.xmax;
270 if(r.ymin > border.ymax) r.ymin = border.ymax;
271 if(r.xmin < border.xmin) r.xmin = border.xmin;
272 if(r.ymin < border.ymin) r.ymin = border.ymin;
276 static SRECT clipBBox(TAG*tag, SRECT mbbox, SRECT r)
278 int id = swf_GetDefineID(tag);
280 if(!placements[id].po) {
282 printf("Id %d is never set\n", id);
285 if(placements[id].num>1) {
287 printf("Id %d is set more than once\n", id);
290 m = placements[id].po->matrix;
292 fprintf(stderr, "Rotating PLACEOBJECTS are not supported with -c\n");
296 printf("ID %d\n", id);
297 swf_DumpMatrix(stdout, &m);
302 mbbox.xmin *= 65536.0/m.sx;
303 mbbox.xmax *= 65536.0/m.sx;
304 mbbox.ymin *= 65536.0/m.sy;
305 mbbox.ymax *= 65536.0/m.sy;
307 printf("border: %f/%f/%f/%f - rect: %f/%f/%f/%f\n",
318 r = swf_ClipRect(mbbox, r);
320 printf("new rect: %f/%f/%f/%f\n",
330 static void textcallback(void*self, int*chars, int*xpos, int nr, int fontid, int fontsize,
331 int xstart, int ystart, RGBA* color)
333 textbounds_t * bounds = (textbounds_t*)self;
336 for(t=0;t<fontnum;t++) {
337 if(fonts[t]->id == fontid) {
343 fprintf(stderr, "Font %d unknown\n", fontid);
347 /* This is an expensive operation- but what should we do, we
348 need the glyph's bounding boxes */
349 swf_FontCreateLayout(font);
353 printf("%d chars, font %d, size %d, at (%d,%d)\n", nr, fontid, fontsize, xstart, ystart);
356 /* not tested yet- the matrix/fontsize calculation is probably all wrong */
357 int x = xstart + xpos[t];
360 SRECT newglyphbbox, glyphbbox = font->layout->bounds[chars[t]];
361 MATRIX m = bounds->m;
364 if(chars[t] < font->numchars && font->glyph2ascii) {
365 ch = font->glyph2ascii[chars[t]];
369 p = swf_TurnPoint(p, &m);
371 m.sx = (m.sx * fontsize) / 1024;
372 m.sy = (m.sy * fontsize) / 1024;
373 m.r0 = (m.r0 * fontsize) / 1024;
374 m.r1 = (m.r1 * fontsize) / 1024;
378 newglyphbbox = swf_TurnRect(glyphbbox, &m);
382 swf_ExpandRect2(&(bounds->r), &newglyphbbox);
384 printf("%5d %c, %d %d %d %d (%d %d %d %d) -> %d %d %d %d\n",
386 glyphbbox.xmin, glyphbbox.ymin, glyphbbox.xmax, glyphbbox.ymax,
387 newglyphbbox.xmin, newglyphbbox.ymin, newglyphbbox.xmax, newglyphbbox.ymax,
388 bounds->r.xmin, bounds->r.ymin, bounds->r.xmax, bounds->r.ymax);
394 static void swf_OptimizeBoundingBoxes(SWF*swf)
396 TAG* tag = swf->firstTag;
399 if (tag->id == ST_DEFINESHAPE ||
400 tag->id == ST_DEFINESHAPE2 ||
401 tag->id == ST_DEFINESHAPE3) {
403 if(verbose) printf("%s\n", swf_TagGetName(tag));
404 swf_ParseDefineShape(tag, &s);
405 swf_Shape2Optimize(&s);
409 fprintf(stderr, "Internal error (5)\n");
413 *s.bbox = clipBBox(tag, swf->movieSize, *s.bbox);
415 swf_SetShape2(tag, &s);
417 if (tag->id == ST_DEFINETEXT || tag->id == ST_DEFINETEXT2) {
423 if(verbose) printf("%s\n", swf_TagGetName(tag));
425 if(verbose) printf("Extracting fonts...\n");
428 swf_FontEnumerate(swf,&fontcallback1,0);
429 fonts = (SWFFONT**)malloc(fontnum*sizeof(SWFFONT*));
430 memset(fonts, 0, fontnum*sizeof(SWFFONT*));
432 swf_FontEnumerate(swf,&fontcallback2,0);
435 memset(&bounds, 0, sizeof(bounds));
437 swf_SetTagPos(tag, 0);
439 swf_GetRect(tag,&oldbox);
440 swf_ResetReadBits(tag);
441 matrix_offset = tag->pos;
442 swf_GetMatrix(tag,&bounds.m);
443 swf_ParseDefineText(tag, textcallback, &bounds);
446 swf_DumpMatrix(stdout, &bounds.m);
447 printf("old: %d %d %d %d\n", oldbox.xmin, oldbox.ymin, oldbox.xmax, oldbox.ymax);
448 printf("new: %d %d %d %d\n", bounds.r.xmin, bounds.r.ymin, bounds.r.xmax, bounds.r.ymax);
451 bounds.r = clipBBox(tag, swf->movieSize, bounds.r);
454 /* now comes the tricky part:
455 we have to fiddle the data back in
456 thank heavens that the bbox is follow by a matrix
457 struct, which always starts on a byte boundary.
459 len = tag->len - matrix_offset;
461 memcpy(data, &tag->data[matrix_offset], len);
464 swf_SetRect(tag, &bounds.r);
465 swf_SetBlock(tag, data, len);
467 tag->pos = tag->readBit = 0;
473 static void showSwiftyOutput(SWF*swf)
475 TAG*tag = swf->firstTag;
477 printf("{\n\t{frame %d}\n", frame++);
480 if (tag->id == ST_SHOWFRAME) {
481 printf("}\n{\n\t{frame %d}\n", frame++);
483 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
485 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
488 depth2name[swf_GetDepth(tag)] = getname(tag);
491 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
492 MATRIX m = getmatrix(tag);
493 U16 id = depth2id[swf_GetDepth(tag)];
494 char*name = depth2name[swf_GetDepth(tag)];
496 SRECT bbox = bboxes[id];
498 p1.x = bbox.xmin; p1.y = bbox.ymin;
499 p2.x = bbox.xmax; p2.y = bbox.ymin;
500 p3.x = bbox.xmin; p3.y = bbox.ymax;
501 p4.x = bbox.xmax; p4.y = bbox.ymax;
502 p1 = swf_TurnPoint(p1, &m);
503 p2 = swf_TurnPoint(p2, &m);
504 p3 = swf_TurnPoint(p3, &m);
505 p4 = swf_TurnPoint(p4, &m);
507 sprintf(buf, "ID%d", id);name = buf;
509 //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);
510 printf("\t{%s {%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f}}\n", name,
511 p1.x/20.0, p1.y/20.0, p2.x/20.0, p2.y/20.0,
512 p3.x/20.0, p3.y/20.0, p4.x/20.0, p4.y/20.0);
518 static SRECT getMovieClipBBox(TAG*tag)
520 //TAG*tag = swf->firstTag;
524 memset(depth2id, 0, sizeof(depth2id));
526 memset(&movieSize,0,sizeof(SRECT));
528 while (tag->id != ST_END) {
529 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
531 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
534 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
535 MATRIX m = getmatrix(tag);
536 U16 id = depth2id[swf_GetDepth(tag)];
537 SRECT bbox = bboxes[id];
539 SRECT tbbox = swf_TurnRect(bbox, &m);
540 swf_ExpandRect2(&movieSize, &tbbox);
547 static SRECT getSWFBBox(SWF*swf)
549 SRECT movieSize = getMovieClipBBox(swf->firstTag);
554 int main (int argc,char ** argv)
561 memset(bboxes, 0, sizeof(bboxes));
562 memset(depth2name, 0, sizeof(depth2name));
564 processargs(argc, argv);
565 initLog(0,0,0,0,0,verbose?LOGLEVEL_DEBUG:LOGLEVEL_WARNING);
568 fprintf(stderr, "You must supply a filename.\n");
572 fi = open(filename,O_RDONLY|O_BINARY);
576 perror("Couldn't open file: ");
579 if FAILED(swf_ReadSWF(fi,&swf))
581 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
587 swf_OptimizeTagOrder(&swf);
590 placements = readPlacements(&swf);
595 /* Optimize bounding boxes in case -O flag was set */
597 swf_OptimizeBoundingBoxes(&swf);
600 /* Create an ID to Bounding Box table */
603 if(swf_isDefiningTag(tag)) {
604 int id = swf_GetDefineID(tag);
605 if(tag->id != ST_DEFINESPRITE) {
606 bboxes[id] = swf_GetDefineBBox(tag);
608 swf_UnFoldSprite(tag);
609 bboxes[id] = getMovieClipBBox(tag);
612 printf("sprite %d is %.2fx%.2f\n", id,
613 (bboxes[id].xmax - bboxes[id].xmin)/20.0,
614 (bboxes[id].ymax - bboxes[id].ymin)/20.0);
621 /* Create an ID->Bounding Box table for all bounding boxes */
623 showSwiftyOutput(&swf);
626 oldMovieSize = swf.movieSize;
627 newMovieSize = getSWFBBox(&swf);
629 if(optimize || expand) {
632 swf.movieSize = newMovieSize;
634 fi = open(outfilename, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
635 if(swf_WriteSWF(fi, &swf) < 0) {
636 fprintf(stderr, "Error writing file %s", outfilename);
645 printf("Real Movie Size: ");
646 printf("%.2f x %.2f :%.2f :%.2f\n",
647 (newMovieSize.xmax-newMovieSize.xmin)/20.0,
648 (newMovieSize.ymax-newMovieSize.ymin)/20.0,
649 (newMovieSize.xmin)/20.0,
650 (newMovieSize.ymin)/20.0
655 printf("Original Movie Size: ");
656 printf("%.2f x %.2f :%.2f :%.2f\n",
657 (oldMovieSize.xmax-oldMovieSize.xmin)/20.0,
658 (oldMovieSize.ymax-oldMovieSize.ymin)/20.0,
659 (oldMovieSize.xmin)/20.0,
660 (oldMovieSize.ymin)/20.0
667 freePlacements(placements);