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;
38 static struct options_t options[] = {
48 int args_callback_option(char*name,char*val)
50 if(!strcmp(name, "V")) {
51 printf("swfbbox - part of %s %s\n", PACKAGE, VERSION);
54 else if(!strcmp(name, "O")) {
58 else if(!strcmp(name, "S")) {
62 else if(!strcmp(name, "v")) {
66 else if(!strcmp(name, "o")) {
71 printf("Unknown option: -%s\n", name);
77 int args_callback_longoption(char*name,char*val)
79 return args_long2shortoption(options, name, val);
81 void args_callback_usage(char *name)
84 printf("Usage: %s [-OS] file.swf\n", name);
86 printf("-h , --help Print help and exit\n");
87 printf("-O , --optimize Recalculate bounding boxes\n");
88 printf("-S , --swifty Print out transformed bounding boxes\n");
89 printf("-o , --output <filename> Set output filename to <filename> (for -O)\n");
90 printf("-v , --verbose Be more verbose\n");
91 printf("-V , --version Print program version and exit\n");
94 int args_callback_command(char*name,char*val)
97 fprintf(stderr, "Only one file allowed. You supplied at least two. (%s and %s)\n",
104 #define swf_ResetReadBits(tag) if (tag->readBit) { tag->pos++; tag->readBit = 0; }
106 void swf_Shape2Optimize(SHAPE2*shape)
109 shape->bbox = malloc(sizeof(SRECT));
110 *(shape->bbox) = swf_GetShapeBoundingBox(shape);
114 {char {x1 y1 x2 y2 x3 y3 x4 y4]]
119 char*depth2name[65536];
123 if(tag->id == ST_PLACEOBJECT)
125 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 2))
132 if(tag->id == ST_PLACEOBJECT)
134 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20))
139 char* getname(TAG*tag)
141 if(tag->id == ST_PLACEOBJECT)
143 if(tag->id == ST_PLACEOBJECT2 && (tag->data[0] & 0x20)) {
145 tag->pos = 0;tag->readBit = 0;
146 swf_GetPlaceObject(tag, &o);
152 MATRIX getmatrix(TAG*tag)
155 tag->pos = 0;tag->readBit = 0;
156 swf_GetPlaceObject(tag, &o);
161 static int fontnum = -1;
162 static SWFFONT**fonts;
164 static void fontcallback1(U16 id,U8 * name)
167 static void fontcallback2(U16 id,U8 * name)
170 swf_FontExtract(c_swf,id,&fonts[fontnum]);
172 if(fonts[fontnum]) printf("Extracting font %d (%s)\n", id, name);
173 else printf("Extracting font %d (%s) failed\n", id, name);
178 typedef struct _textbounds
181 MATRIX m; // character transform matrix
184 static void textcallback(void*self, int*chars, int*xpos, int nr, int fontid, int fontsize,
185 int xstart, int ystart, RGBA* color)
187 textbounds_t * bounds = (textbounds_t*)self;
190 for(t=0;t<fontnum;t++) {
191 if(fonts[t]->id == fontid) {
197 fprintf(stderr, "Font %d unknown\n", fontid);
201 /* This is an expensive operation- but what should we do, we
202 need the glyph's bounding boxes */
203 swf_FontCreateLayout(font);
207 printf("%d chars, font %d, size %d, at (%d,%d)\n", nr, fontid, fontsize, xstart, ystart);
210 /* not tested yet- the matrix/fontsize calculation is probably all wrong */
211 int x = xstart + xpos[t];
214 SRECT newglyphbbox, glyphbbox = font->layout->bounds[chars[t]];
215 MATRIX m = bounds->m;
217 if(ch < font->numchars && font->glyph2ascii) {
218 ch = font->glyph2ascii[ch];
221 m.sx = (m.sx * fontsize) / 1024;
222 m.sy = (m.sy * fontsize) / 1024;
223 m.r0 = (m.r0 * fontsize) / 1024;
224 m.r1 = (m.r1 * fontsize) / 1024;
228 newglyphbbox = swf_TurnRect(glyphbbox, &m);
232 swf_ExpandRect2(&(bounds->r), &newglyphbbox);
234 printf("%5d %c, %d %d %d %d (%d %d %d %d) -> %d %d %d %d\n",
236 glyphbbox.xmin, glyphbbox.ymin, glyphbbox.xmax, glyphbbox.ymax,
237 newglyphbbox.xmin, newglyphbbox.ymin, newglyphbbox.xmax, newglyphbbox.ymax,
238 bounds->r.xmin, bounds->r.ymin, bounds->r.xmax, bounds->r.ymax);
244 static void swf_OptimizeBoundingBoxes(SWF*swf)
246 TAG* tag = swf->firstTag;
249 if (tag->id == ST_DEFINESHAPE ||
250 tag->id == ST_DEFINESHAPE2 ||
251 tag->id == ST_DEFINESHAPE3) {
253 if(verbose) printf("%s\n", swf_TagGetName(tag));
254 swf_ParseDefineShape(tag, &s);
255 swf_Shape2Optimize(&s);
258 swf_SetShape2(tag, &s);
260 if (tag->id == ST_DEFINETEXT || tag->id == ST_DEFINETEXT2) {
266 if(verbose) printf("%s\n", swf_TagGetName(tag));
268 if(verbose) printf("Extracting fonts...\n");
271 swf_FontEnumerate(swf,&fontcallback1);
272 fonts = (SWFFONT**)malloc(fontnum*sizeof(SWFFONT*));
273 memset(fonts, 0, fontnum*sizeof(SWFFONT*));
275 swf_FontEnumerate(swf,&fontcallback2);
278 memset(&bounds, 0, sizeof(bounds));
280 swf_SetTagPos(tag, 0);
282 swf_GetRect(tag,&oldbox);
283 swf_ResetReadBits(tag);
284 matrix_offset = tag->pos;
285 swf_GetMatrix(tag,&bounds.m);
286 swf_ParseDefineText(tag, textcallback, &bounds);
289 swf_DumpMatrix(stdout, &bounds.m);
290 printf("old: %d %d %d %d\n", oldbox.xmin, oldbox.ymin, oldbox.xmax, oldbox.ymax);
291 printf("new: %d %d %d %d\n", bounds.r.xmin, bounds.r.ymin, bounds.r.xmax, bounds.r.ymax);
294 /* now comes the tricky part:
295 we have to fiddle the data back in
296 thank heavens that the bbox is follow by a matrix
297 struct, which always starts on a byte boundary.
299 len = tag->len - matrix_offset;
301 memcpy(data, &tag->data[matrix_offset], len);
304 swf_SetRect(tag, &bounds.r);
305 swf_SetBlock(tag, data, len);
307 tag->pos = tag->readBit = 0;
313 static void showSwiftyOutput(SWF*swf)
315 TAG*tag = swf->firstTag;
317 printf("{\n\t{frame %d}\n", frame++);
320 if (tag->id == ST_SHOWFRAME) {
321 printf("}\n{\n\t{frame %d}\n", frame++);
323 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
325 depth2id[swf_GetDepth(tag)] = swf_GetPlaceID(tag);
328 depth2name[swf_GetDepth(tag)] = getname(tag);
331 if (tag->id == ST_PLACEOBJECT || tag->id == ST_PLACEOBJECT2) {
332 MATRIX m = getmatrix(tag);
333 U16 id = depth2id[swf_GetDepth(tag)];
334 char*name = depth2name[swf_GetDepth(tag)];
336 SRECT bbox = bboxes[id];
338 p1.x = bbox.xmin; p1.y = bbox.ymin;
339 p2.x = bbox.xmax; p2.y = bbox.ymin;
340 p3.x = bbox.xmin; p3.y = bbox.ymax;
341 p4.x = bbox.xmax; p4.y = bbox.ymax;
342 p1 = swf_TurnPoint(p1, &m);
343 p2 = swf_TurnPoint(p2, &m);
344 p3 = swf_TurnPoint(p3, &m);
345 p4 = swf_TurnPoint(p4, &m);
347 sprintf(buf, "ID%d", id);name = buf;
349 //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);
350 printf("\t{%s {%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f}}\n", name,
351 p1.x/20.0, p1.y/20.0, p2.x/20.0, p2.y/20.0,
352 p3.x/20.0, p3.y/20.0, p4.x/20.0, p4.y/20.0);
360 int main (int argc,char ** argv)
365 memset(bboxes, 0, sizeof(bboxes));
366 memset(depth2name, 0, sizeof(depth2name));
368 processargs(argc, argv);
369 initLog(0,0,0,0,0,verbose?LOGLEVEL_DEBUG:LOGLEVEL_WARNING);
372 fprintf(stderr, "You must supply a filename.\n");
376 fi = open(filename,O_RDONLY|O_BINARY);
380 perror("Couldn't open file: ");
383 if FAILED(swf_ReadSWF(fi,&swf))
385 fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
391 swf_OptimizeTagOrder(&swf);
394 /* Optimize bounding boxes in case -O flag was set */
396 swf_OptimizeBoundingBoxes(&swf);
399 /* Create an ID to Bounding Box table */
402 if(swf_isDefiningTag(tag) && tag->id != ST_DEFINESPRITE) {
403 bboxes[swf_GetDefineID(tag)] = swf_GetDefineBBox(tag);
408 /* Create an ID->Bounding Box table for all bounding boxes */
410 showSwiftyOutput(&swf);
414 fi = open(outfilename, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
415 if(swf_WriteSWF(fi, &swf) < 0) {
416 fprintf(stderr, "Error writing file %s", outfilename);