2 Implements generation of swf files using the rfxswf lib. The routines
3 in this file are called from pdf2swf.
5 This file is part of swftools.
7 Swftools is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 Swftools is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with swftools; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
24 #include "swfoutput.h"
27 #include "../lib/log.h"
28 #include "../lib/rfxswf.h"
31 typedef unsigned char u8;
32 typedef unsigned short int u16;
33 typedef unsigned long int u32;
36 static int flag_protected;
39 static int shapeid = -1;
40 static int shapecount = 0;
42 static int fillstyleid;
43 static int linestyleid;
44 static int swflastx=0;
45 static int swflasty=0;
46 static int lastwasfill = 0;
47 static char* filename = 0;
52 static int startdepth = 1;
58 void startshape(struct swfoutput* obj);
60 // matrix multiplication. changes p0
61 void transform (plotxy*p0,struct swfmatrix*m)
64 x = m->m11*p0->x+m->m12*p0->y;
65 y = m->m21*p0->x+m->m22*p0->y;
70 // write a move-to command into the swf
71 void moveto(plotxy p0)
73 int rx = (int)(p0.x*20);
74 int ry = (int)(p0.y*20);
75 if(rx!=swflastx || ry!=swflasty) {
76 ShapeSetMove (tag, shape, rx,ry);
82 // write a line-to command into the swf
83 void lineto(plotxy p0)
85 int rx = ((int)(p0.x*20)-swflastx);
86 int ry = ((int)(p0.y*20)-swflasty);
87 /* we can't skip this for rx=0,ry=0, those
89 ShapeSetLine (tag, shape, rx,ry);
94 // write a spline-to command into the swf
95 void splineto(plotxy control,plotxy end)
97 int cx = ((int)(control.x*20)-swflastx);
98 int cy = ((int)(control.y*20)-swflasty);
101 int ex = ((int)(end.x*20)-swflastx);
102 int ey = ((int)(end.y*20)-swflasty);
105 ShapeSetCurve(tag, shape, cx,cy,ex,ey);
108 /* write a line, given two points and the transformation
110 void line(plotxy p0, plotxy p1, struct swfmatrix*m)
118 /* write a cubic (!) spline. This involves calling the approximate()
119 function out of spline.cc to convert it to a quadratic spline. */
120 void spline(plotxy p0,plotxy p1,plotxy p2,plotxy p3,struct swfmatrix*m)
123 struct qspline q[16];
131 num = approximate(p0,p1,p2,p3,q);
134 splineto(q[t].control, q[t].end);
138 /* Adds an outline to a font. Applies only the 2x2 component of the transformation matrix.
140 void addtofont(T1_OUTLINE*outline, struct swfmatrix*m, char*namehint)
144 /* draw a T1 outline. These are generated by pdf2swf and by t1lib.
145 (representing characters) */
146 void drawpath(T1_OUTLINE*outline, struct swfmatrix*m, char*namehint)
149 double lastx=0,lasty=0;
153 logf("<debug> Pathtype:%s",outline->type == T1_PATHTYPE_MOVE?"MOVE":
154 (outline->type == T1_PATHTYPE_LINE?"LINE"
156 logf("<debug> relative coordinates: %08x,%08x", outline->dest.x, outline->dest.y);
157 x += (outline->dest.x/(float)0xffff);
158 y += (outline->dest.y/(float)0xffff);
159 logf("<debug> coordinates: %f,%f", x, y);
160 if(outline->type == T1_PATHTYPE_MOVE)
163 else if(outline->type == T1_PATHTYPE_LINE)
173 else if(outline->type == T1_PATHTYPE_BEZIER)
179 T1_BEZIERSEGMENT*o2 = (T1_BEZIERSEGMENT*)outline;
182 p1.x=o2->C.x/(float)0xffff+lastx;
183 p1.y=o2->C.y/(float)0xffff+lasty;
184 p2.x=o2->B.x/(float)0xffff+lastx;
185 p2.y=o2->B.y/(float)0xffff+lasty;
188 spline(p0,p1,p2,p3,m);
191 logf("<error> drawpath: unknown outline type:%d\n", outline->type);
195 outline = outline->link;
198 //logf("<debug> Font name is %s", T1_GetFontFileName(t1fontindex));
199 //logf("<debug> char 0x%02x is named %s\n",character,charname);
200 //logf("<debug> bbox: %d %d %d %d\n",bbox.llx,bbox.lly,bbox.urx,bbox.ury);
201 //char*charname = T1_GetCharName(t1fontindex, character);
203 /* process a character. */
204 void drawchar(struct swfoutput*obj, SWFFont*font, char character, swfmatrix*m)
206 T1_OUTLINE*outline = font->getOutline(character);
207 char* charname = font->getCharName(character);
211 /* for newline, we don't print an error. FIXME: We shouldn't get newlines here
214 if(character != '\n') {
215 logf("<error> Char to set is not defined!");
216 logf("<error> - font file is %s\n", font->getName());
217 logf("<error> - char 0x%02x is named %s\n",character, charname);
231 ShapeSetStyle(tag,shape,0x8000,fillstyleid,0);
234 drawpath(outline, &m2, charname);
237 /* draw a curved polygon. */
238 void swfoutput_drawpath(swfoutput*output, T1_OUTLINE*outline, struct swfmatrix*m)
243 if(lastwasfill && !fill)
245 ShapeSetStyle(tag,shape,linestyleid,0x8000,0);
248 if(!lastwasfill && fill)
250 ShapeSetStyle(tag,shape,0x8000,fillstyleid,0);
254 drawpath(outline,m, 0);
257 SWFFont::SWFFont(int t1fontindex)
262 int width = T1_GetCharWidth(t1fontindex, t);
263 BBox bbox = T1_GetCharBBox(t1fontindex, t);
264 T1_OUTLINE*outline = T1_GetCharOutline(t1fontindex,t,100.0,0);
267 this->outline[t] = T1_CopyOutline(outline);
269 name = T1_GetCharName(t1fontindex, t);
270 if(!name || name[0]=='.')
272 this->charname[t] = 0;
273 this->outline[t] = 0;
276 this->charname[t] = strdup(name);
278 this->name = strdup(T1_GetFontFileName(t1fontindex));
281 T1_OUTLINE*SWFFont::getOutline(unsigned char nr)
286 char*SWFFont::getCharName(int t)
288 return this->charname[t];
291 char*SWFFont::getName()
302 /* set's the t1 font index of the font to use for swfoutput_drawchar(). */
303 void swfoutput_setfont(struct swfoutput*obj, int fontid, int t1id)
305 fontlist_t*last=0,*iterator;
306 if(obj->font && obj->font->id == fontid)
311 if(iterator->font->id == fontid)
314 iterator = iterator->next;
318 obj->font = iterator->font;
323 logf("<error> internal error: t1id:%d, fontid:%d\n", t1id,fontid);
326 SWFFont*font = new SWFFont(t1id);
327 iterator = new fontlist_t;
328 iterator->font = font;
332 last->next = iterator;
338 int swfoutput_queryfont(struct swfoutput*obj, int fontid)
340 fontlist_t *iterator = fontlist;
342 if(iterator->font->id == fontid)
344 iterator = iterator->next;
349 /* set's the matrix which is to be applied to characters drawn by
350 swfoutput_drawchar() */
351 void swfoutput_setfontmatrix(struct swfoutput*obj,double m11,double m12,
352 double m21,double m22)
360 /* draws a character at x,y. */
361 void swfoutput_drawchar(struct swfoutput* obj,double x,double y,char character)
364 m.m11 = obj->fontm11;
365 m.m12 = obj->fontm12;
366 m.m21 = obj->fontm21;
367 m.m22 = obj->fontm22;
370 drawchar(obj, obj->font, character, &m);
373 /* initialize the swf writer */
374 void swfoutput_init(struct swfoutput* obj, char*_filename, int _sizex, int _sizey)
379 memset(obj, 0, sizeof(struct swfoutput));
380 filename = _filename;
384 logf("<verbose> initializing swf output for size %d*%d\n", sizex,sizey);
388 memset(&swf,0x00,sizeof(SWF));
391 // swf.FrameRate = 0x1900;
392 swf.FrameRate = 0x0040; // 1 frame per 4 seconds
393 swf.MovieSize.xmax = 20*sizex;
394 swf.MovieSize.ymax = 20*sizey;
396 swf.FirstTag = InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
403 tag = InsertTag(tag, ST_PROTECT);
408 void swfoutput_setprotected() //write PROTECT tag
413 void startshape(struct swfoutput*obj)
417 tag = InsertTag(tag,ST_DEFINESHAPE);
420 linestyleid = ShapeAddLineStyle(shape,obj->linewidth,&obj->strokergb);
421 rgb.r = obj->fillrgb.r;
422 rgb.g = obj->fillrgb.g;
423 rgb.b = obj->fillrgb.b;
424 fillstyleid = ShapeAddSolidFillStyle(shape,&obj->fillrgb);
426 shapeid = ++shapecount;
427 SetU16(tag,shapeid); // ID
436 SetShapeStyles(tag,shape);
437 ShapeCountBits(shape,NULL,NULL);
438 SetShapeBits(tag,shape);
440 ShapeSetAll(tag,shape,/*x*/0,/*y*/0,linestyleid,0,0);
450 tag = InsertTag(tag,ST_PLACEOBJECT2);
451 ObjectPlace(tag,shapeid,/*depth*/depth++,NULL,NULL,NULL);
455 void endpage(struct swfoutput*obj)
460 swfoutput_endclip(obj);
461 tag = InsertTag(tag,ST_SHOWFRAME);
464 void swfoutput_newpage(struct swfoutput*obj)
468 for(depth--;depth>=startdepth;depth--) {
469 tag = InsertTag(tag,ST_REMOVEOBJECT2);
477 /* "destroy" like in (oo-terminology) "destructor". Perform cleaning
478 up, complete the swf, and write it out. */
479 void swfoutput_destroy(struct swfoutput* obj)
487 fi = open(filename, O_CREAT|O_TRUNC|O_WRONLY, 0777);
492 logf("<fatal> Could not create \"%s\". ", filename);
496 tag = InsertTag(tag,ST_END);
498 if FAILED(WriteSWF(fi,&swf))
499 logf("<error> WriteSWF() failed.\n");
502 printf("SWF written\n");
505 void swfoutput_setdrawmode(swfoutput* obj, int mode)
507 if(mode == DRAWMODE_FILL)
509 else if(mode == DRAWMODE_EOFILL)
511 else if(mode == DRAWMODE_STROKE)
513 else if(mode == DRAWMODE_CLIP)
515 else if(mode == DRAWMODE_EOCLIP)
519 void swfoutput_setfillcolor(swfoutput* obj, u8 r, u8 g, u8 b, u8 a)
521 if(obj->fillrgb.r == r &&
522 obj->fillrgb.g == g &&
523 obj->fillrgb.b == b &&
524 obj->fillrgb.a == a) return;
534 void swfoutput_setstrokecolor(swfoutput* obj, u8 r, u8 g, u8 b, u8 a)
536 if(obj->strokergb.r == r &&
537 obj->strokergb.g == g &&
538 obj->strokergb.b == b &&
539 obj->strokergb.a == a) return;
543 obj->strokergb.r = r;
544 obj->strokergb.g = g;
545 obj->strokergb.b = b;
546 obj->strokergb.a = a;
549 void swfoutput_setlinewidth(struct swfoutput*obj, double linewidth)
551 if(obj->linewidth == (u16)(linewidth*20))
556 obj->linewidth = (u16)(linewidth*20);
560 void swfoutput_startclip(swfoutput*obj, T1_OUTLINE*outline, struct swfmatrix*m)
567 logf("<warning> Too many clip levels.");
573 swfoutput_setdrawmode(obj, DRAWMODE_CLIP);
574 swfoutput_drawpath(obj, outline, m);
577 tag = InsertTag(tag,ST_PLACEOBJECT2);
578 cliptags[clippos] = tag;
579 clipshapes[clippos] = shapeid;
580 clipdepths[clippos] = depth++;
585 void swfoutput_endclip(swfoutput*obj)
591 logf("<error> Invalid end of clipping region");
595 PlaceObject(cliptags[clippos],clipshapes[clippos],clipdepths[clippos],NULL,NULL,NULL,depth++);
598 void swfoutput_drawimagefile(struct swfoutput*, char*filename, int sizex,int sizey,
609 struct plotxy p1,p2,p3,p4;
611 double xmax=x1,ymax=y1,xmin=x1,ymin=y1;
634 m.sx = (int)(65536*20*(x4-x1))/sizex;
635 m.r1 = -(int)(65536*20*(y4-y1))/sizex;
636 m.r0 = (int)(65536*20*(x1-x2))/sizey;
637 m.sy = -(int)(65536*20*(y1-y2))/sizey;
645 bitid = ++shapecount;
648 tag = InsertTag(tag,ST_DEFINEBITSJPEG2);
650 SetJPEGBits(tag, filename, 85);
653 myshapeid = ++shapecount;
654 tag = InsertTag(tag,ST_DEFINESHAPE);
656 //lsid = ShapeAddLineStyle(shape,obj->linewidth,&obj->strokergb);
657 //fsid = ShapeAddSolidFillStyle(shape,&obj->fillrgb);
658 fsid = ShapeAddBitmapFillStyle(shape,&m,bitid,0);
659 SetU16(tag, myshapeid);
660 r.xmin = (int)(xmin*20);
661 r.ymin = (int)(ymin*20);
662 r.xmax = (int)(xmax*20);
663 r.ymax = (int)(ymax*20);
665 SetShapeStyles(tag,shape);
666 ShapeCountBits(shape,NULL,NULL);
667 SetShapeBits(tag,shape);
668 ShapeSetAll(tag,shape,/*x*/0,/*y*/0,lsid,fsid,0);
669 swflastx = swflasty = 0;
676 ShapeMoveTo (tag, shape, (int)(x1*20),(int)(y1*20));
677 ShapeSetLine (tag, shape, (int)(x1*20);
678 ShapeSetLine (tag, shape, x*20,0);
679 ShapeSetLine (tag, shape, 0,-y*20);
680 ShapeSetLine (tag, shape, -x*20,0);*/
684 tag = InsertTag(tag,ST_PLACEOBJECT2);
685 ObjectPlace(tag,myshapeid,/*depth*/depth++,NULL,NULL,NULL);