along with swftools; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
+#include "../config.h"
#include <fcntl.h>
#include <unistd.h>
+#ifdef HAVE_ASSERT_H
+#include <assert.h>
+#else
+#define assert(a)
+#endif
+#include <math.h>
#include "swfoutput.h"
#include "spline.h"
extern "C" {
int enablezlib=0;
int insertstoptag=0;
int flashversion=4;
+int splinemaxerror=1;
+int fontsplinemaxerror=1;
static int flag_protected = 0;
typedef unsigned char u8;
if(storefont) {
/* fonts use a different approximation than shapes */
- num = cspline_approximate(&c, q, 10.0, APPROXIMATE_RECURSIVE_BINARY);
+ num = cspline_approximate(&c, q, fontsplinemaxerror/20.0, APPROXIMATE_RECURSIVE_BINARY);
//num = cspline_approximate(&c, q, 10.0, APPROXIMATE_INFLECTION);
} else {
- num = cspline_approximate(&c, q, 1.0, APPROXIMATE_RECURSIVE_BINARY);
+ num = cspline_approximate(&c, q, splinemaxerror/20.0, APPROXIMATE_RECURSIVE_BINARY);
}
for(t=0;t<num;t++) {
if(!t)
swflasty = 0;
}
-/* draw a T1 outline. These are generated by pdf2swf and by t1lib.
- (representing characters) */
+static void stopFill()
+{
+ if(lastwasfill)
+ {
+ swf_ShapeSetStyle(tag,shape,linestyleid,0x8000,0);
+ fillstylechanged = 1;
+ lastwasfill = 0;
+ }
+}
+static void startFill()
+{
+ if(!lastwasfill)
+ {
+ swf_ShapeSetStyle(tag,shape,0x8000,fillstyleid,0);
+ fillstylechanged = 1;
+ lastwasfill = 1;
+ }
+}
+
+/* draw a T1 outline. These are generated by pdf2swf and by t1lib
+ (representing characters). */
void drawpath(TAG*tag, T1_OUTLINE*outline, struct swfmatrix*m, int log)
{
if(tag->id != ST_DEFINEFONT &&
tag->id != ST_DEFINESHAPE2 &&
tag->id != ST_DEFINESHAPE3)
{
- logf("<error> internal error: drawpath needs a shape tag, not %d\n",tag->id);
+ msg("<error> internal error: drawpath needs a shape tag, not %d\n",tag->id);
exit(1);
}
double x=0,y=0;
spline(tag,p0,p1,p2,p3,m);
}
else {
- logf("<error> drawpath: unknown outline type:%d\n", outline->type);
+ msg("<error> drawpath: unknown outline type:%d\n", outline->type);
}
lastx=x;
lasty=y;
}
}
+plotxy getPivot(T1_OUTLINE*outline, int dir, double line_width, int end, int trytwo)
+{
+ T1_PATHPOINT next, next2;
+ double xv=0,yv=0, xv2=0, yv2=0;
+ plotxy p;
+ int two = 0;
+
+ if(!end) {
+ if(outline->type == T1_PATHTYPE_LINE) {
+ next = outline->dest;
+ } else {
+ next = ((T1_BEZIERSEGMENT*)outline)->B;
+ if(next.x==0 && next.y==0) {
+ next = ((T1_BEZIERSEGMENT*)outline)->C;
+ }
+ if(next.x==0 && next.y==0) {
+ next = ((T1_BEZIERSEGMENT*)outline)->dest;
+ }
+ }
+ next2 = next;
+ if(trytwo && outline->last && outline->last->type != T1_PATHTYPE_MOVE) {
+ if(outline->type == T1_PATHTYPE_LINE) {
+ next2 = outline->last->dest;
+ } else {
+ T1_PATHPOINT c = ((T1_BEZIERSEGMENT*)(outline->last))->C;
+ T1_PATHPOINT b = ((T1_BEZIERSEGMENT*)(outline->last))->B;
+ next2.x = outline->last->dest.x - c.x;
+ next2.y = outline->last->dest.y - c.y;
+ if(next2.x==0 && next2.y==0) {
+ next2.x = outline->last->dest.x - b.x;
+ next2.y = outline->last->dest.y - b.y;
+ }
+ if(next2.x==0 && next2.y==0) {
+ next2.x = outline->last->dest.x;
+ next2.y = outline->last->dest.y;
+ }
+ }
+ two = 1;
+ }
+ } else {
+ if(outline->type == T1_PATHTYPE_LINE) {
+ next = outline->dest;
+ } else {
+ T1_PATHPOINT c = ((T1_BEZIERSEGMENT*)outline)->C;
+ T1_PATHPOINT b = ((T1_BEZIERSEGMENT*)outline)->B;
+ next.x = outline->dest.x - c.x;
+ next.y = outline->dest.y - c.y;
+ if(next.x==0 && next.y==0) {
+ next.x = outline->dest.x - b.x;
+ next.y = outline->dest.y - b.y;
+ }
+ if(next.x==0 && next.y==0) {
+ next.x = outline->dest.x;
+ next.y = outline->dest.y;
+ }
+ }
+ next2 = next;
+ if(trytwo && outline->link && outline->link->type != T1_PATHTYPE_MOVE) {
+ if(outline->type == T1_PATHTYPE_LINE) {
+ next2 = outline->link->dest;
+ } else {
+ next2 = ((T1_BEZIERSEGMENT*)(outline->link))->B;
+ if(next2.x==0 && next2.y==0) {
+ next2 = ((T1_BEZIERSEGMENT*)outline->link)->C;
+ }
+ if(next2.x==0 && next2.y==0) {
+ next2 = ((T1_BEZIERSEGMENT*)outline->link)->dest;
+ }
+ }
+ two = 1;
+ }
+ }
+
+ if(dir) {
+ xv = next.y/(float)0xffff;
+ yv = -next.x/(float)0xffff;
+ } else {
+ xv = -next.y/(float)0xffff;
+ yv = next.x/(float)0xffff;
+ }
+
+ double r = (line_width/2)/sqrt(xv*xv+yv*yv);
+ xv*=r;
+ yv*=r;
+
+ if(two) {
+ if(dir) {
+ xv2 = next2.y/(float)0xffff;
+ yv2 = -next2.x/(float)0xffff;
+ } else {
+ xv2 = -next2.y/(float)0xffff;
+ yv2 = next2.x/(float)0xffff;
+ }
+
+ double r2 = (line_width/2)/sqrt(xv2*xv2+yv2*yv2);
+ xv2*=r2;
+ yv2*=r2;
+ xv = (xv+xv2)/2;
+ yv = (yv+yv2)/2;
+ double r3 = (line_width/2)/sqrt(xv*xv+yv*yv);
+ xv *= r3;
+ yv *= r3;
+ }
+
+ p.x = xv;
+ p.y = yv;
+ return p;
+}
+
+void drawShortPath(struct swfoutput*output, double x, double y, struct swfmatrix* m, T1_OUTLINE*outline)
+{
+ double lastx=x, lasty=y;
+ while (outline && outline->type != T1_PATHTYPE_MOVE)
+ {
+ x += (outline->dest.x/(float)0xffff);
+ y += (outline->dest.y/(float)0xffff);
+
+ if(outline->type == T1_PATHTYPE_LINE)
+ {
+ plotxy p0, p1;
+ p0.x=lastx;
+ p0.y=lasty;
+ p1.x= x;
+ p1.y= y;
+ line(tag, p0, p1, m);
+ }
+ else if(outline->type == T1_PATHTYPE_BEZIER)
+ {
+ plotxy p0,p1,p2,p3;
+ T1_BEZIERSEGMENT*o2 = (T1_BEZIERSEGMENT*)outline;
+ p3.x=lastx;
+ p3.y=lasty;
+ p1.x=o2->C.x/(float)0xffff+lastx;
+ p1.y=o2->C.y/(float)0xffff+lasty;
+ p2.x=o2->B.x/(float)0xffff+lastx;
+ p2.y=o2->B.y/(float)0xffff+lasty;
+ p0.x=x;
+ p0.y=y;
+ spline(tag,p0,p1,p2,p3,m);
+ }
+ lastx=x;
+ lasty=y;
+ outline = outline->link;
+ }
+}
+
+void drawShortPathWithEnds(struct swfoutput*output, double x, double y, struct swfmatrix* m, T1_OUTLINE*outline, int num, int line_cap, int line_join, double line_width)
+{
+ plotxy d,d2;
+ int back = 0;
+
+ if(line_cap == LINE_CAP_BUTT || line_cap == LINE_CAP_SQUARE) {
+ endshape();
+ startshape(output);
+ T1_OUTLINE *last, *tmp=outline;
+ plotxy s,e,p0,p1,p2,p3,m0,m1,m2,m3;
+ double x2 = x;
+ double y2 = y;
+ double lx=x,ly=y;
+ double ee = 1.0;
+ int nr;
+ while(tmp && tmp->type != T1_PATHTYPE_MOVE) {
+ last = tmp;
+ lx += (tmp->dest.x/(float)0xffff);
+ ly += (tmp->dest.y/(float)0xffff);
+ tmp = tmp->link;
+ }
+ s = getPivot(outline, 0, line_width, 0, 0);
+ e = getPivot(last, 0, line_width, 1, 0);
+
+ if(line_cap == LINE_CAP_BUTT) {
+ /* make the clipping rectangle slighly bigger
+ than the line ending, so that it get's clipped
+ propertly */
+ //ee = 1.01;
+ ee=1.0;
+ }
+
+ p0.x = x2 + s.x*ee;
+ p0.y = y2 + s.y*ee;
+ p1.x = x2 - s.x*ee;
+ p1.y = y2 - s.y*ee;
+ p2.x = x2 - s.y - s.x*ee;
+ p2.y = y2 + s.x - s.y*ee;
+ p3.x = x2 - s.y + s.x*ee;
+ p3.y = y2 + s.x + s.y*ee;
+ m0.x = lx + e.x*ee;
+ m0.y = ly + e.y*ee;
+ m1.x = lx - e.x*ee;
+ m1.y = ly - e.y*ee;
+ m2.x = lx + e.y - e.x*ee;
+ m2.y = ly - e.x - e.y*ee;
+ m3.x = lx + e.y + e.x*ee;
+ m3.y = ly - e.x + e.y*ee;
+
+ for(nr=0;nr<2;nr++) {
+ int dir=0;
+ struct plotxy q0,q1,q2,q3,q4,q5;
+ startFill();
+ if(line_cap == LINE_CAP_BUTT) {
+ if(dir) {
+ q0.x = 0; q0.y = 0;
+ q1.x = sizex; q1.y = 0;
+ q2.x = sizex; q2.y = sizey;
+ q3.x = 0; q3.y = sizey;
+ } else {
+ q0.x = sizex; q0.y = sizey;
+ q1.x = 0; q1.y = sizey;
+ q2.x = 0; q2.y = 0;
+ q3.x = sizex; q3.y = 0;
+ }
+ q4.x = p0.x;
+ q4.y = p0.y;
+ moveto(tag, q0);
+ lineto(tag, q1);
+ lineto(tag, q2);
+ lineto(tag, q3);
+ lineto(tag, q0);
+
+ transform(&q4,m);
+ lineto(tag, q4);
+ }
+
+ line(tag, p0, p1, m);
+ line(tag, p1, p2, m);
+ line(tag, p2, p3, m);
+ line(tag, p3, p0, m);
+
+ if(line_cap == LINE_CAP_BUTT) {
+ lineto(tag, q0);
+ swf_ShapeSetEnd(tag);
+ tag = swf_InsertTag(tag, ST_PLACEOBJECT2);
+ swf_ObjectPlaceClip(tag,shapeid,depth,NULL,NULL,NULL,depth+2-nr);
+ depth++;
+ shapeid = -1;
+ startshape(output);
+ }
+ p0 = m0;
+ p1 = m1;
+ p2 = m2;
+ p3 = m3;
+ }
+
+ stopFill();
+ }
+
+ drawShortPath(output,x,y,m,outline);
+
+ if(line_cap == LINE_CAP_BUTT) {
+ endshape();
+ startshape(output);
+ }
+}
+
+void drawT1toRect(struct swfoutput*output, double x, double y, struct swfmatrix* m, T1_OUTLINE*outline, int num, int line_cap, int line_join, double line_width)
+{
+ plotxy d1,d2,p1,p2,p3,p4;
+
+ d1.x = (outline->dest.x/(float)0xffff);
+ d1.y = (outline->dest.y/(float)0xffff);
+ d2 = getPivot(outline, 0, line_width, 0, 0);
+
+ assert(line_cap != LINE_CAP_ROUND);
+ if(line_cap == LINE_CAP_SQUARE) {
+ x -= +d2.y;
+ y -= -d2.x;
+ d1.x += +2*d2.y;
+ d1.y += -2*d2.x;
+ }
+
+ p1.x = x + d2.x;
+ p1.y = y + d2.y;
+ p2.x = x + d2.x + d1.x;
+ p2.y = y + d2.y + d1.y;
+ p3.x = x - d2.x + d1.x;
+ p3.y = y - d2.y + d1.y;
+ p4.x = x - d2.x;
+ p4.y = y - d2.y;
+
+ line(tag, p1,p2, m);
+ line(tag, p2,p3, m);
+ line(tag, p3,p4, m);
+ line(tag, p4,p1, m);
+}
+
+void drawShortPathWithStraightEnds(struct swfoutput*output, double x, double y, struct swfmatrix* m, T1_OUTLINE*outline, int num, int line_cap, int line_join, double line_width)
+{
+ T1_OUTLINE*tmp=outline;
+ double xx=x,yy=y;
+ int stop=0;
+ assert(shapeid>=0);
+
+ startFill();
+ drawT1toRect(output, x, y, m,outline, num, line_cap, line_join, line_width);
+
+ while(tmp->link && tmp->link->type!=T1_PATHTYPE_MOVE) {
+ xx += (tmp->dest.x/(float)0xffff);
+ yy += (tmp->dest.y/(float)0xffff);
+ tmp = tmp->link;
+ }
+
+ assert(tmp->type == T1_PATHTYPE_LINE);
+ assert(outline->type == T1_PATHTYPE_LINE);
+
+ if(tmp!=outline) {
+
+ if(outline->link == tmp) {
+ /* the two straight line segments (which are everything we
+ need to draw) are very likely to overlap. To avoid that
+ they cancel each other out at the end points, start a new
+ shape for the second one */
+ endshape();startshape(output);
+ startFill();
+ }
+
+ drawT1toRect(output, xx, yy, m, tmp, num, line_cap, line_join, line_width);
+
+ if(outline->link != tmp)
+ {
+ stopFill();stop=1;
+ int save= tmp->type;
+ tmp->type = T1_PATHTYPE_MOVE;
+ x += (outline->dest.x/(float)0xffff);
+ y += (outline->dest.y/(float)0xffff);
+ outline = outline->link;
+ drawShortPath(output, x, y, m, outline);
+ tmp->type = save;
+ }
+ }
+ if(!stop)
+ stopFill();
+}
+
+static int t1len(T1_OUTLINE*line)
+{
+ int num=0;
+ while(line && line->type != T1_PATHTYPE_MOVE) {
+ num++;
+ line = line->link;
+ }
+ return num;
+}
+
+static float t1linelen(T1_OUTLINE*line)
+{
+ float x,y;
+ x = (line->dest.x/(float)0xffff);
+ y = (line->dest.y/(float)0xffff);
+ return sqrt(x*x+y*y);
+}
+
+void drawpath2poly(struct swfoutput *output, T1_OUTLINE*outline, struct swfmatrix*m, int log, int line_join, int line_cap, double line_width, double miter_limit)
+{
+ if(tag->id != ST_DEFINEFONT &&
+ tag->id != ST_DEFINESHAPE &&
+ tag->id != ST_DEFINESHAPE2 &&
+ tag->id != ST_DEFINESHAPE3) {
+ msg("<error> internal error: drawpath needs a shape tag, not %d\n",tag->id);
+ exit(1);
+ }
+ assert(shapeid>=0);
+ double x=0,y=0;
+ double lastx=0,lasty=0;
+ int valid = 0;
+ int lastwasline = 0;
+ T1_OUTLINE*tmp = outline, *last = 0;
+ tmp->last = 0;
+
+ while(1) {
+ if(tmp) {
+ x += (tmp->dest.x/(float)0xffff);
+ y += (tmp->dest.y/(float)0xffff);
+ }
+ if(!tmp || tmp->type == T1_PATHTYPE_MOVE) {
+ if(valid && last) {
+ if(last->type == T1_PATHTYPE_LINE && t1linelen(last)>line_width*2 &&
+ lastwasline && line_cap != LINE_CAP_ROUND)
+ drawShortPathWithStraightEnds(output, lastx, lasty, m, last, valid, line_cap, line_join, line_width);
+ else
+ drawShortPathWithEnds(output, lastx, lasty, m, last, valid, line_cap, line_join, line_width);
+ }
+ if(!tmp)
+ break;
+ valid = 0;
+ last = 0;
+ lastx = x;
+ lasty = y;
+ } else {
+ if(!last)
+ last = tmp;
+ valid++;
+ }
+
+ if(tmp && tmp->type == T1_PATHTYPE_LINE && t1linelen(tmp)>line_width*2)
+ lastwasline = 1;
+ else
+ lastwasline = 0;
+
+ if(tmp->link)
+ tmp->link->last = tmp; // make sure list is properly linked in both directions
+ tmp = tmp->link;
+ }
+}
+
static inline int colorcompare(RGBA*a,RGBA*b)
{
if(tag->id != ST_DEFINETEXT &&
tag->id != ST_DEFINETEXT2) {
- logf("<error> internal error: putcharacters needs an text tag, not %d\n",tag->id);
+ msg("<error> internal error: putcharacters needs an text tag, not %d\n",tag->id);
exit(1);
}
if(!chardatapos) {
- logf("<warning> putcharacters called with zero characters");
+ msg("<warning> putcharacters called with zero characters");
}
for(pass = 0; pass < 2; pass++)
char* charname = character;
if(!outline) {
- logf("<warning> Didn't find %s in current charset (%s)",
+ msg("<warning> Didn't find %s in current charset (%s)",
FIXNULL(character),FIXNULL(font->getName()));
return;
}
if(shapeid<0)
startshape(obj);
- if(!lastwasfill) {
- swf_ShapeSetStyle(tag,shape,0x8000,fillstyleid,0);
- fillstylechanged = 1;
- }
- lastwasfill = 1;
+ startFill();
int lf = fill;
fill = 1;
if(shapeid<0)
startshape(output);
- if(lastwasfill && !fill)
- {
- swf_ShapeSetStyle(tag,shape,linestyleid,0x8000,0);
- fillstylechanged = 1;
- lastwasfill = 0;
- }
- if(!lastwasfill && fill)
- {
- swf_ShapeSetStyle(tag,shape,0x8000,fillstyleid,0);
- fillstylechanged = 1;
- lastwasfill = 1;
- }
+ if(!fill)
+ stopFill();
+ else
+ startFill();
drawpath(tag, outline,m, 0);
}
+void swfoutput_drawpath2poly(struct swfoutput*output, T1_OUTLINE*outline, struct swfmatrix*m, int line_join, int line_cap, double line_width, double miter_limit)
+{
+ if(textid>=0)
+ endtext();
+ if(shapeid>=0)
+ endshape();
+ assert(shapeid<0);
+ startshape(output);
+ stopFill();
+
+ drawpath2poly(output, outline, m, 0, line_join, line_cap, line_width, miter_limit);
+}
+
/* SWFFont: copy all t1 font outlines to a local
array. */
SWFFont::SWFFont(char*name, int id, char*filename)
if(!charnum)
return;
- logf("<verbose> Font %s(%d): Storing %d outlines.\n", FIXNULL(name), id, charnum);
+ msg("<verbose> Font %s(%d): Storing %d outlines.\n", FIXNULL(name), id, charnum);
this->standardtablesize = 256;
if(this->charnum < this->standardtablesize)
if(usednum && !drawonlyshapes)
{
- logf("<verbose> Font %s has %d used characters",FIXNULL(fontid), usednum);
+ msg("<verbose> Font %s has %d used characters",FIXNULL(fontid), usednum);
TAG*ftag = swf_InsertTag(swf.firstTag,ST_DEFINEFONT);
swf_SetU16(ftag, this->swfid);
int initpos = swf_GetTagLen(ftag);
return getOutline(this->standardtable[charnr], -1);
}
- logf("<warning> Didn't find character '%s' in font '%s'", FIXNULL(name), this->name);
+ msg("<warning> Didn't find character '%s' in font '%s'", FIXNULL(name), this->name);
return 0;
}
if(this->standardtable && charnr>=0 && charnr < this->standardtablesize) {
return getSWFCharID(this->standardtable[charnr], -1);
}
- logf("<warning> Didn't find character '%s' in font '%s'", FIXNULL(name), this->name);
+ msg("<warning> Didn't find character '%s' in font '%s'", FIXNULL(name), this->name);
return 0;
}
}
if(t1id<0) {
- logf("<error> internal error: t1id:%d, fontid:%s\n", t1id,FIXNULL(fontid));
+ msg("<error> internal error: t1id:%d, fontid:%s\n", t1id,FIXNULL(fontid));
}
SWFFont*font = new SWFFont(fontid, t1id, filename);
sizex = _sizex;
sizey = _sizey;
- logf("<verbose> initializing swf output for size %d*%d\n", sizex,sizey);
+ msg("<verbose> initializing swf output for size %d*%d\n", sizex,sizey);
obj->font = 0;
fi = 1; // stdout
if(fi<=0) {
- logf("<fatal> Could not create \"%s\". ", FIXNULL(filename));
+ msg("<fatal> Could not create \"%s\". ", FIXNULL(filename));
exit(1);
}
if(enablezlib) {
if FAILED(swf_WriteSWC(fi,&swf))
- logf("<error> WriteSWC() failed.\n");
+ msg("<error> WriteSWC() failed.\n");
} else {
if FAILED(swf_WriteSWF(fi,&swf))
- logf("<error> WriteSWF() failed.\n");
+ msg("<error> WriteSWF() failed.\n");
}
if(filename)
close(fi);
- logf("<notice> SWF written\n");
+ msg("<notice> SWF written\n");
}
void swfoutput_setdrawmode(swfoutput* obj, int mode)
if(clippos >= 127)
{
- logf("<warning> Too many clip levels.");
+ msg("<warning> Too many clip levels.");
clippos --;
}
endshape();
if(!clippos) {
- logf("<error> Invalid end of clipping region");
+ msg("<error> Invalid end of clipping region");
return;
}
clippos--;
git.asbjorn.biz / swftools.git / blobdiff