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 = 1;
38 static int showorigbbox = 0;
39 static int expand = 1;
41 static struct options_t options[] = {
54 int args_callback_option(char*name,char*val)
56 if(!strcmp(name, "V")) {
57 printf("swfbbox - part of %s %s\n", PACKAGE, VERSION);
60 else if(!strcmp(name, "b")) {
62 if(showbbox == 1) showbbox = 0;
65 else if(!strcmp(name, "B")) {
69 else if(!strcmp(name, "O")) {
71 if(showbbox == 1) showbbox = 0;
74 else if(!strcmp(name, "S")) {
76 if(showbbox == 1) showbbox = 0;
79 else if(!strcmp(name, "v")) {
83 else if(!strcmp(name, "q")) {
87 else if(!strcmp(name, "e")) {
91 else if(!strcmp(name, "o")) {
96 printf("Unknown option: -%s\n", name);
102 int args_callback_longoption(char*name,char*val)
104 return args_long2shortoption(options, name, val);
106 void args_callback_usage(char *name)
109 printf("Usage: %s [-OSe] file.swf\n", name);
111 printf("-h , --help Print help and exit\n");
112 printf("-S , --swifty Print out transformed bounding boxes\n");
113 printf("-O , --optimize Recalculate bounding boxes and write new file\n");
114 printf("-e , --expand Recalculate main bounding box and write new file\n");
115 printf("-o , --output <filename> Set output filename to <filename> (for -O/-e)\n");
116 printf("-v , --verbose Be more verbose\n");
117 printf("-V , --version Print program version and exit\n");
120 int args_callback_command(char*name,char*val)
123 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
130 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
132 void swf_Shape2Optimize(SHAPE2*shape)
135 shape->bbox = malloc(sizeof(SRECT));
136 *(shape->bbox) = swf_GetShapeBoundingBox(shape);
140 {char {x1 y1 x2 y2 x3 y3 x4 y4]]
145 char*depth2name[65536];
149 if(tag->id == ST_PLACEOBJECT)
151 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 2))
158 if(tag->id == ST_PLACEOBJECT)
160 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20))
165 char* getname(TAG*tag)
167 if(tag->id == ST_PLACEOBJECT)
169 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20)) {
171 tag->pos = 0;tag->readBit = 0;
172 swf_GetPlaceObject(tag, &o);
178 MATRIX getmatrix(TAG*tag)
181 tag->pos = 0;tag->readBit = 0;
182 swf_GetPlaceObject(tag, &o);
187 static int fontnum = -1;
188 static SWFFONT**fonts;
190 static void fontcallback1(U16 id,U8 * name)
193 static void fontcallback2(U16 id,U8 * name)
196 swf_FontExtract(c_swf,id,&fonts[fontnum]);
198 if(fonts[fontnum]) printf("Extracting font %d (%s)\n", id, name);
199 else printf("Extracting font %d (%s) failed\n", id, name);
204 typedef struct _textbounds
207 MATRIX m; // character transform matrix
210 static void textcallback(void*self, int*chars, int*xpos, int nr, int fontid, int fontsize,
211 int xstart, int ystart, RGBA* color)
213 textbounds_t * bounds = (textbounds_t*)self;
216 for(t=0;t<fontnum;t++) {
217 if(fonts[t]->id == fontid) {
223 fprintf(stderr, "Font %d unknown\n", fontid);
227 /* This is an expensive operation- but what should we do, we
228 need the glyph's bounding boxes */
229 swf_FontCreateLayout(font);
233 printf("%d chars, font %d, size %d, at (%d,%d)\n", nr, fontid, fontsize, xstart, ystart);
236 /* not tested yet- the matrix/fontsize calculation is probably all wrong */
237 int x = xstart + xpos[t];
240 SRECT newglyphbbox, glyphbbox = font->layout->bounds[chars[t]];
241 MATRIX m = bounds->m;
243 if(chars[t] < font->numchars && font->glyph2ascii) {
244 ch = font->glyph2ascii[chars[t]];
247 m.sx = (m.sx * fontsize) / 1024;
248 m.sy = (m.sy * fontsize) / 1024;
249 m.r0 = (m.r0 * fontsize) / 1024;
250 m.r1 = (m.r1 * fontsize) / 1024;
254 newglyphbbox = swf_TurnRect(glyphbbox, &m);
258 swf_ExpandRect2(&(bounds->r), &newglyphbbox);
260 printf("%5d %c, %d %d %d %d (%d %d %d %d) -> %d %d %d %d\n",
262 glyphbbox.xmin, glyphbbox.ymin, glyphbbox.xmax, glyphbbox.ymax,
263 newglyphbbox.xmin, newglyphbbox.ymin, newglyphbbox.xmax, newglyphbbox.ymax,
264 bounds->r.xmin, bounds->r.ymin, bounds->r.xmax, bounds->r.ymax);
270 static void swf_OptimizeBoundingBoxes(SWF*swf)
272 TAG* tag = swf->firstTag;
275 if (tag->id == ST_DEFINESHAPE ||
276 tag->id == ST_DEFINESHAPE2 ||
277 tag->id == ST_DEFINESHAPE3) {
279 if(verbose) printf("%s\n", swf_TagGetName(tag));
280 swf_ParseDefineShape(tag, &s);
281 swf_Shape2Optimize(&s);
284 swf_SetShape2(tag, &s);
286 if (tag->id == ST_DEFINETEXT || tag->id == ST_DEFINETEXT2) {
292 if(verbose) printf("%s\n", swf_TagGetName(tag));
294 if(verbose) printf("Extracting fonts...\n");
297 swf_FontEnumerate(swf,&fontcallback1);
298 fonts = (SWFFONT**)malloc(fontnum*sizeof(SWFFONT*));
299 memset(fonts, 0, fontnum*sizeof(SWFFONT*));
301 swf_FontEnumerate(swf,&fontcallback2);
304 memset(&bounds, 0, sizeof(bounds));
306 swf_SetTagPos(tag, 0);
308 swf_GetRect(tag,&oldbox);
309 swf_ResetReadBits(tag);
310 matrix_offset = tag->pos;
311 swf_GetMatrix(tag,&bounds.m);
312 swf_ParseDefineText(tag, textcallback, &bounds);
315 swf_DumpMatrix(stdout, &bounds.m);
316 printf("old: %d %d %d %d\n", oldbox.xmin, oldbox.ymin, oldbox.xmax, oldbox.ymax);
317 printf("new: %d %d %d %d\n", bounds.r.xmin, bounds.r.ymin, bounds.r.xmax, bounds.r.ymax);
320 /* now comes the tricky part:
321 we have to fiddle the data back in
322 thank heavens that the bbox is follow by a matrix
323 struct, which always starts on a byte boundary.
325 len = tag->len - matrix_offset;
327 memcpy(data, &tag->data[matrix_offset], len);
330 swf_SetRect(tag, &bounds.r);
331 swf_SetBlock(tag, data, len);
333 tag->pos = tag->readBit = 0;
339 static void showSwiftyOutput(SWF*swf)
341 TAG*tag = swf->firstTag;
343 printf("{\n\t{frame %d}\n", frame++);
346 if (tag->id == ST_SHOWFRAME) {
347 printf("}\n{\n\t{frame %d}\n", frame++);
349 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
351 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
354 depth2name[swf_GetDepth(tag)] = getname(tag);
357 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
358 MATRIX m = getmatrix(tag);
359 U16 id = depth2id[swf_GetDepth(tag)];
360 char*name = depth2name[swf_GetDepth(tag)];
362 SRECT bbox = bboxes[id];
364 p1.x = bbox.xmin; p1.y = bbox.ymin;
365 p2.x = bbox.xmax; p2.y = bbox.ymin;
366 p3.x = bbox.xmin; p3.y = bbox.ymax;
367 p4.x = bbox.xmax; p4.y = bbox.ymax;
368 p1 = swf_TurnPoint(p1, &m);
369 p2 = swf_TurnPoint(p2, &m);
370 p3 = swf_TurnPoint(p3, &m);
371 p4 = swf_TurnPoint(p4, &m);
373 sprintf(buf, "ID%d", id);name = buf;
375 //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);
376 printf("\t{%s {%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f}}\n", name,
377 p1.x/20.0, p1.y/20.0, p2.x/20.0, p2.y/20.0,
378 p3.x/20.0, p3.y/20.0, p4.x/20.0, p4.y/20.0);
384 static SRECT getMovieClipBBox(TAG*tag)
386 //TAG*tag = swf->firstTag;
390 memset(depth2id, 0, sizeof(depth2id));
392 memset(&movieSize,0,sizeof(SRECT));
394 while (tag->id != ST_END) {
395 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
397 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
400 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
401 MATRIX m = getmatrix(tag);
402 U16 id = depth2id[swf_GetDepth(tag)];
403 SRECT bbox = bboxes[id];
405 SRECT tbbox = swf_TurnRect(bbox, &m);
406 swf_ExpandRect2(&movieSize, &tbbox);
413 static SRECT getSWFBBox(SWF*swf)
415 SRECT movieSize = getMovieClipBBox(swf->firstTag);
420 int main (int argc,char ** argv)
427 memset(bboxes, 0, sizeof(bboxes));
428 memset(depth2name, 0, sizeof(depth2name));
430 processargs(argc, argv);
431 initLog(0,0,0,0,0,verbose?LOGLEVEL_DEBUG:LOGLEVEL_WARNING);
434 fprintf(stderr, "You must supply a filename.\n");
438 fi = open(filename,O_RDONLY|O_BINARY);
442 perror("Couldn't open file: ");
445 if FAILED(swf_ReadSWF(fi,&swf))
447 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
453 swf_OptimizeTagOrder(&swf);
456 /* Optimize bounding boxes in case -O flag was set */
458 swf_OptimizeBoundingBoxes(&swf);
461 /* Create an ID to Bounding Box table */
464 if(swf_isDefiningTag(tag)) {
465 int id = swf_GetDefineID(tag);
466 if(tag->id != ST_DEFINESPRITE) {
467 bboxes[id] = swf_GetDefineBBox(tag);
469 swf_UnFoldSprite(tag);
470 bboxes[id] = getMovieClipBBox(tag);
473 printf("sprite %d is %.2fx%.2f\n", id,
474 (bboxes[id].xmax - bboxes[id].xmin)/20.0,
475 (bboxes[id].ymax - bboxes[id].ymin)/20.0);
482 /* Create an ID->Bounding Box table for all bounding boxes */
484 showSwiftyOutput(&swf);
487 oldMovieSize = swf.movieSize;
488 newMovieSize = getSWFBBox(&swf);
490 if(optimize || expand) {
493 swf.movieSize = newMovieSize;
495 fi = open(outfilename, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
496 if(swf_WriteSWF(fi, &swf) < 0) {
497 fprintf(stderr, "Error writing file %s", outfilename);
506 printf("Real Movie Size: ");
507 printf("%.2f x %.2f :%.2f :%.2f\n",
508 (newMovieSize.xmax-newMovieSize.xmin)/20.0,
509 (newMovieSize.ymax-newMovieSize.ymin)/20.0,
510 (newMovieSize.xmin)/20.0,
511 (newMovieSize.ymin)/20.0
516 printf("Original Movie Size: ");
517 printf("%.2f x %.2f :%.2f :%.2f\n",
518 (oldMovieSize.xmax-oldMovieSize.xmin)/20.0,
519 (oldMovieSize.ymax-oldMovieSize.ymin)/20.0,
520 (oldMovieSize.xmin)/20.0,
521 (oldMovieSize.ymin)/20.0