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 [-OS] file.swf\n", name);
111 printf("-h , --help Print help and exit\n");
112 printf("-b , --bbox Show movie bounding box (default)\n");
113 printf("-B , --newbbox Show recalculated (optimized/expanded) bounding box\n");
114 printf("-e , --expand Write out a new file using the recalculated bounding box\n");
115 printf("-O , --optimize Recalculate bounding boxes\n");
116 printf("-S , --swifty Print out transformed bounding boxes\n");
117 printf("-o , --output <filename> Set output filename to <filename> (for -O)\n");
118 printf("-v , --verbose Be more verbose\n");
119 printf("-V , --version Print program version and exit\n");
122 int args_callback_command(char*name,char*val)
125 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
132 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
134 void swf_Shape2Optimize(SHAPE2*shape)
137 shape->bbox = malloc(sizeof(SRECT));
138 *(shape->bbox) = swf_GetShapeBoundingBox(shape);
142 {char {x1 y1 x2 y2 x3 y3 x4 y4]]
147 char*depth2name[65536];
151 if(tag->id == ST_PLACEOBJECT)
153 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 2))
160 if(tag->id == ST_PLACEOBJECT)
162 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20))
167 char* getname(TAG*tag)
169 if(tag->id == ST_PLACEOBJECT)
171 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20)) {
173 tag->pos = 0;tag->readBit = 0;
174 swf_GetPlaceObject(tag, &o);
180 MATRIX getmatrix(TAG*tag)
183 tag->pos = 0;tag->readBit = 0;
184 swf_GetPlaceObject(tag, &o);
189 static int fontnum = -1;
190 static SWFFONT**fonts;
192 static void fontcallback1(U16 id,U8 * name)
195 static void fontcallback2(U16 id,U8 * name)
198 swf_FontExtract(c_swf,id,&fonts[fontnum]);
200 if(fonts[fontnum]) printf("Extracting font %d (%s)\n", id, name);
201 else printf("Extracting font %d (%s) failed\n", id, name);
206 typedef struct _textbounds
209 MATRIX m; // character transform matrix
212 static void textcallback(void*self, int*chars, int*xpos, int nr, int fontid, int fontsize,
213 int xstart, int ystart, RGBA* color)
215 textbounds_t * bounds = (textbounds_t*)self;
218 for(t=0;t<fontnum;t++) {
219 if(fonts[t]->id == fontid) {
225 fprintf(stderr, "Font %d unknown\n", fontid);
229 /* This is an expensive operation- but what should we do, we
230 need the glyph's bounding boxes */
231 swf_FontCreateLayout(font);
235 printf("%d chars, font %d, size %d, at (%d,%d)\n", nr, fontid, fontsize, xstart, ystart);
238 /* not tested yet- the matrix/fontsize calculation is probably all wrong */
239 int x = xstart + xpos[t];
242 SRECT newglyphbbox, glyphbbox = font->layout->bounds[chars[t]];
243 MATRIX m = bounds->m;
245 if(chars[t] < font->numchars && font->glyph2ascii) {
246 ch = font->glyph2ascii[chars[t]];
249 m.sx = (m.sx * fontsize) / 1024;
250 m.sy = (m.sy * fontsize) / 1024;
251 m.r0 = (m.r0 * fontsize) / 1024;
252 m.r1 = (m.r1 * fontsize) / 1024;
256 newglyphbbox = swf_TurnRect(glyphbbox, &m);
260 swf_ExpandRect2(&(bounds->r), &newglyphbbox);
262 printf("%5d %c, %d %d %d %d (%d %d %d %d) -> %d %d %d %d\n",
264 glyphbbox.xmin, glyphbbox.ymin, glyphbbox.xmax, glyphbbox.ymax,
265 newglyphbbox.xmin, newglyphbbox.ymin, newglyphbbox.xmax, newglyphbbox.ymax,
266 bounds->r.xmin, bounds->r.ymin, bounds->r.xmax, bounds->r.ymax);
272 static void swf_OptimizeBoundingBoxes(SWF*swf)
274 TAG* tag = swf->firstTag;
277 if (tag->id == ST_DEFINESHAPE ||
278 tag->id == ST_DEFINESHAPE2 ||
279 tag->id == ST_DEFINESHAPE3) {
281 if(verbose) printf("%s\n", swf_TagGetName(tag));
282 swf_ParseDefineShape(tag, &s);
283 swf_Shape2Optimize(&s);
286 swf_SetShape2(tag, &s);
288 if (tag->id == ST_DEFINETEXT || tag->id == ST_DEFINETEXT2) {
294 if(verbose) printf("%s\n", swf_TagGetName(tag));
296 if(verbose) printf("Extracting fonts...\n");
299 swf_FontEnumerate(swf,&fontcallback1);
300 fonts = (SWFFONT**)malloc(fontnum*sizeof(SWFFONT*));
301 memset(fonts, 0, fontnum*sizeof(SWFFONT*));
303 swf_FontEnumerate(swf,&fontcallback2);
306 memset(&bounds, 0, sizeof(bounds));
308 swf_SetTagPos(tag, 0);
310 swf_GetRect(tag,&oldbox);
311 swf_ResetReadBits(tag);
312 matrix_offset = tag->pos;
313 swf_GetMatrix(tag,&bounds.m);
314 swf_ParseDefineText(tag, textcallback, &bounds);
317 swf_DumpMatrix(stdout, &bounds.m);
318 printf("old: %d %d %d %d\n", oldbox.xmin, oldbox.ymin, oldbox.xmax, oldbox.ymax);
319 printf("new: %d %d %d %d\n", bounds.r.xmin, bounds.r.ymin, bounds.r.xmax, bounds.r.ymax);
322 /* now comes the tricky part:
323 we have to fiddle the data back in
324 thank heavens that the bbox is follow by a matrix
325 struct, which always starts on a byte boundary.
327 len = tag->len - matrix_offset;
329 memcpy(data, &tag->data[matrix_offset], len);
332 swf_SetRect(tag, &bounds.r);
333 swf_SetBlock(tag, data, len);
335 tag->pos = tag->readBit = 0;
341 static void showSwiftyOutput(SWF*swf)
343 TAG*tag = swf->firstTag;
345 printf("{\n\t{frame %d}\n", frame++);
348 if (tag->id == ST_SHOWFRAME) {
349 printf("}\n{\n\t{frame %d}\n", frame++);
351 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
353 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
356 depth2name[swf_GetDepth(tag)] = getname(tag);
359 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
360 MATRIX m = getmatrix(tag);
361 U16 id = depth2id[swf_GetDepth(tag)];
362 char*name = depth2name[swf_GetDepth(tag)];
364 SRECT bbox = bboxes[id];
366 p1.x = bbox.xmin; p1.y = bbox.ymin;
367 p2.x = bbox.xmax; p2.y = bbox.ymin;
368 p3.x = bbox.xmin; p3.y = bbox.ymax;
369 p4.x = bbox.xmax; p4.y = bbox.ymax;
370 p1 = swf_TurnPoint(p1, &m);
371 p2 = swf_TurnPoint(p2, &m);
372 p3 = swf_TurnPoint(p3, &m);
373 p4 = swf_TurnPoint(p4, &m);
375 sprintf(buf, "ID%d", id);name = buf;
377 //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);
378 printf("\t{%s {%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f}}\n", name,
379 p1.x/20.0, p1.y/20.0, p2.x/20.0, p2.y/20.0,
380 p3.x/20.0, p3.y/20.0, p4.x/20.0, p4.y/20.0);
386 static SRECT getMovieClipBBox(TAG*tag)
388 //TAG*tag = swf->firstTag;
392 memset(depth2id, 0, sizeof(depth2id));
394 memset(&movieSize,0,sizeof(SRECT));
396 while (tag->id != ST_END) {
397 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
399 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
402 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
403 MATRIX m = getmatrix(tag);
404 U16 id = depth2id[swf_GetDepth(tag)];
405 SRECT bbox = bboxes[id];
407 SRECT tbbox = swf_TurnRect(bbox, &m);
408 swf_ExpandRect2(&movieSize, &tbbox);
415 static SRECT getSWFBBox(SWF*swf)
417 SRECT movieSize = getMovieClipBBox(swf->firstTag);
422 int main (int argc,char ** argv)
429 memset(bboxes, 0, sizeof(bboxes));
430 memset(depth2name, 0, sizeof(depth2name));
432 processargs(argc, argv);
433 initLog(0,0,0,0,0,verbose?LOGLEVEL_DEBUG:LOGLEVEL_WARNING);
436 fprintf(stderr, "You must supply a filename.\n");
440 fi = open(filename,O_RDONLY|O_BINARY);
444 perror("Couldn't open file: ");
447 if FAILED(swf_ReadSWF(fi,&swf))
449 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
455 swf_OptimizeTagOrder(&swf);
458 /* Optimize bounding boxes in case -O flag was set */
460 swf_OptimizeBoundingBoxes(&swf);
463 /* Create an ID to Bounding Box table */
466 if(swf_isDefiningTag(tag)) {
467 int id = swf_GetDefineID(tag);
468 if(tag->id != ST_DEFINESPRITE) {
469 bboxes[id] = swf_GetDefineBBox(tag);
471 swf_UnFoldSprite(tag);
472 bboxes[id] = getMovieClipBBox(tag);
475 printf("sprite %d is %.2fx%.2f\n", id,
476 (bboxes[id].xmax - bboxes[id].xmin)/20.0,
477 (bboxes[id].ymax - bboxes[id].ymin)/20.0);
484 /* Create an ID->Bounding Box table for all bounding boxes */
486 showSwiftyOutput(&swf);
489 oldMovieSize = swf.movieSize;
490 newMovieSize = getSWFBBox(&swf);
492 if(optimize || expand) {
495 swf.movieSize = newMovieSize;
497 fi = open(outfilename, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
498 if(swf_WriteSWF(fi, &swf) < 0) {
499 fprintf(stderr, "Error writing file %s", outfilename);
508 printf("Real Movie Size: ");
509 printf("%.2f x %.2f :%.2f :%.2f\n",
510 (newMovieSize.xmax-newMovieSize.xmin)/20.0,
511 (newMovieSize.ymax-newMovieSize.ymin)/20.0,
512 (newMovieSize.xmin)/20.0,
513 (newMovieSize.ymin)/20.0
518 printf("Original Movie Size: ");
519 printf("%.2f x %.2f :%.2f :%.2f\n",
520 (oldMovieSize.xmax-oldMovieSize.xmin)/20.0,
521 (oldMovieSize.ymax-oldMovieSize.ymin)/20.0,
522 (oldMovieSize.xmin)/20.0,
523 (oldMovieSize.ymin)/20.0