48 #include "magick/studio.h"
49 #include "magick/annotate.h"
50 #include "magick/artifact.h"
51 #include "magick/blob.h"
52 #include "magick/cache.h"
53 #include "magick/cache-private.h"
54 #include "magick/cache-view.h"
55 #include "magick/channel.h"
56 #include "magick/color.h"
57 #include "magick/color-private.h"
58 #include "magick/colorspace.h"
59 #include "magick/colorspace-private.h"
60 #include "magick/composite.h"
61 #include "magick/composite-private.h"
62 #include "magick/constitute.h"
63 #include "magick/draw.h"
64 #include "magick/draw-private.h"
65 #include "magick/enhance.h"
66 #include "magick/exception.h"
67 #include "magick/exception-private.h"
68 #include "magick/gem.h"
69 #include "magick/geometry.h"
70 #include "magick/image-private.h"
71 #include "magick/list.h"
72 #include "magick/log.h"
73 #include "magick/memory-private.h"
74 #include "magick/monitor.h"
75 #include "magick/monitor-private.h"
76 #include "magick/option.h"
77 #include "magick/paint.h"
78 #include "magick/pixel-accessor.h"
79 #include "magick/pixel-private.h"
80 #include "magick/property.h"
81 #include "magick/resample.h"
82 #include "magick/resample-private.h"
83 #include "magick/resource_.h"
84 #include "magick/splay-tree.h"
85 #include "magick/string_.h"
86 #include "magick/string-private.h"
87 #include "magick/thread-private.h"
88 #include "magick/token.h"
89 #include "magick/transform.h"
90 #include "magick/utility.h"
95 #define AntialiasThreshold (1.0/3.0)
96 #define BezierQuantum 200
97 #define PrimitiveExtentPad 4296.0
98 #define MaxBezierCoordinates 67108864
99 #define ThrowPointExpectedException(image,token) \
101 (void) ThrowMagickException(&(image)->exception,GetMagickModule(),DrawError, \
102 "NonconformingDrawingPrimitiveDefinition","`%s'",token); \
103 status=MagickFalse; \
193 *DrawClippingMask(
Image *,
const DrawInfo *,
const char *,
const char *,
196 static MagickBooleanType
201 const double,
const MagickBooleanType,
const MagickBooleanType),
202 TraceBezier(
MVGInfo *,
const size_t),
208 TraceSquareLinecap(
PrimitiveInfo *,
const size_t,
const double);
234 MagickExport
DrawInfo *AcquireDrawInfo(
void)
239 draw_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*draw_info));
240 GetDrawInfo((
ImageInfo *) NULL,draw_info);
277 clone_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*clone_info));
278 GetDrawInfo(image_info,clone_info);
281 if (draw_info->id != (
char *) NULL)
282 (void) CloneString(&clone_info->id,draw_info->id);
283 if (draw_info->primitive != (
char *) NULL)
284 (
void) CloneString(&clone_info->primitive,draw_info->primitive);
285 if (draw_info->geometry != (
char *) NULL)
286 (void) CloneString(&clone_info->geometry,draw_info->geometry);
287 clone_info->compliance=draw_info->compliance;
288 clone_info->viewbox=draw_info->viewbox;
289 clone_info->affine=draw_info->affine;
290 clone_info->gravity=draw_info->gravity;
291 clone_info->fill=draw_info->fill;
292 clone_info->stroke=draw_info->stroke;
293 clone_info->stroke_width=draw_info->stroke_width;
294 if (draw_info->fill_pattern != (
Image *) NULL)
295 clone_info->fill_pattern=CloneImage(draw_info->fill_pattern,0,0,MagickTrue,
296 &draw_info->fill_pattern->exception);
298 if (draw_info->tile != (
Image *) NULL)
299 clone_info->fill_pattern=CloneImage(draw_info->tile,0,0,MagickTrue,
300 &draw_info->tile->exception);
301 clone_info->tile=NewImageList();
302 if (draw_info->stroke_pattern != (
Image *) NULL)
303 clone_info->stroke_pattern=CloneImage(draw_info->stroke_pattern,0,0,
304 MagickTrue,&draw_info->stroke_pattern->exception);
305 clone_info->stroke_antialias=draw_info->stroke_antialias;
306 clone_info->text_antialias=draw_info->text_antialias;
307 clone_info->fill_rule=draw_info->fill_rule;
308 clone_info->linecap=draw_info->linecap;
309 clone_info->linejoin=draw_info->linejoin;
310 clone_info->miterlimit=draw_info->miterlimit;
311 clone_info->dash_offset=draw_info->dash_offset;
312 clone_info->decorate=draw_info->decorate;
313 clone_info->compose=draw_info->compose;
314 if (draw_info->text != (
char *) NULL)
315 (void) CloneString(&clone_info->text,draw_info->text);
316 if (draw_info->font != (
char *) NULL)
317 (
void) CloneString(&clone_info->font,draw_info->font);
318 if (draw_info->metrics != (
char *) NULL)
319 (void) CloneString(&clone_info->metrics,draw_info->metrics);
320 if (draw_info->family != (
char *) NULL)
321 (
void) CloneString(&clone_info->family,draw_info->family);
322 clone_info->style=draw_info->style;
323 clone_info->stretch=draw_info->stretch;
324 clone_info->weight=draw_info->weight;
325 if (draw_info->encoding != (
char *) NULL)
326 (void) CloneString(&clone_info->encoding,draw_info->encoding);
327 clone_info->pointsize=draw_info->pointsize;
328 clone_info->kerning=draw_info->kerning;
329 clone_info->interline_spacing=draw_info->interline_spacing;
330 clone_info->interword_spacing=draw_info->interword_spacing;
331 clone_info->direction=draw_info->direction;
332 if (draw_info->density != (
char *) NULL)
333 (
void) CloneString(&clone_info->density,draw_info->density);
334 clone_info->align=draw_info->align;
335 clone_info->undercolor=draw_info->undercolor;
336 clone_info->border_color=draw_info->border_color;
337 if (draw_info->server_name != (
char *) NULL)
338 (void) CloneString(&clone_info->server_name,draw_info->server_name);
339 if (draw_info->dash_pattern != (
double *) NULL)
344 for (x=0; fabs(draw_info->dash_pattern[x]) >= MagickEpsilon; x++) ;
345 clone_info->dash_pattern=(
double *) AcquireQuantumMemory((
size_t) (2*x+2),
346 sizeof(*clone_info->dash_pattern));
347 if (clone_info->dash_pattern == (
double *) NULL)
348 ThrowFatalException(ResourceLimitFatalError,
349 "UnableToAllocateDashPattern");
350 (void) memset(clone_info->dash_pattern,0,(
size_t) (2*x+2)*
351 sizeof(*clone_info->dash_pattern));
352 (void) memcpy(clone_info->dash_pattern,draw_info->dash_pattern,(
size_t)
353 (x+1)*
sizeof(*clone_info->dash_pattern));
355 clone_info->gradient=draw_info->gradient;
356 if (draw_info->gradient.stops != (
StopInfo *) NULL)
361 number_stops=clone_info->gradient.number_stops;
362 clone_info->gradient.stops=(
StopInfo *) AcquireQuantumMemory((
size_t)
363 number_stops,
sizeof(*clone_info->gradient.stops));
364 if (clone_info->gradient.stops == (
StopInfo *) NULL)
365 ThrowFatalException(ResourceLimitFatalError,
366 "UnableToAllocateDashPattern");
367 (void) memcpy(clone_info->gradient.stops,draw_info->gradient.stops,
368 (
size_t) number_stops*
sizeof(*clone_info->gradient.stops));
370 clone_info->bounds=draw_info->bounds;
371 clone_info->fill_opacity=draw_info->fill_opacity;
372 clone_info->stroke_opacity=draw_info->stroke_opacity;
373 clone_info->element_reference=draw_info->element_reference;
374 clone_info->clip_path=draw_info->clip_path;
375 clone_info->clip_units=draw_info->clip_units;
376 if (draw_info->clip_mask != (
char *) NULL)
377 (
void) CloneString(&clone_info->clip_mask,draw_info->clip_mask);
378 if (draw_info->clipping_mask != (
Image *) NULL)
379 clone_info->clipping_mask=CloneImage(draw_info->clipping_mask,0,0,
380 MagickTrue,&draw_info->clipping_mask->exception);
381 if (draw_info->composite_mask != (
Image *) NULL)
382 clone_info->composite_mask=CloneImage(draw_info->composite_mask,0,0,
383 MagickTrue,&draw_info->composite_mask->exception);
384 clone_info->render=draw_info->render;
385 clone_info->debug=draw_info->debug;
426 if (polygon_info->edges != (
EdgeInfo *) NULL)
428 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
429 if (polygon_info->edges[i].points != (
PointInfo *) NULL)
430 polygon_info->edges[i].points=(
PointInfo *)
431 RelinquishMagickMemory(polygon_info->edges[i].points);
432 polygon_info->edges=(
EdgeInfo *) RelinquishMagickMemory(
433 polygon_info->edges);
435 return((
PolygonInfo *) RelinquishMagickMemory(polygon_info));
438 #if defined(__cplusplus) || defined(c_plusplus)
442 static int DrawCompareEdges(
const void *p_edge,
const void *q_edge)
444 #define DrawCompareEdge(p,q) \
446 if (((p)-(q)) < 0.0) \
448 if (((p)-(q)) > 0.0) \
459 p=((
const EdgeInfo *) p_edge)->points;
460 q=((
const EdgeInfo *) q_edge)->points;
461 DrawCompareEdge(p[0].y,q[0].y);
462 DrawCompareEdge(p[0].x,q[0].x);
463 DrawCompareEdge((p[1].x-p[0].x)*(q[1].y-q[0].y),(p[1].y-p[0].y)*
465 DrawCompareEdge(p[1].y,q[1].y);
466 DrawCompareEdge(p[1].x,q[1].x);
470 #if defined(__cplusplus) || defined(c_plusplus)
474 static void LogPolygonInfo(
const PolygonInfo *polygon_info)
483 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin active-edge");
484 p=polygon_info->edges;
485 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
487 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" edge %.20g:",
489 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" direction: %s",
490 p->direction != MagickFalse ?
"down" :
"up");
491 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" ghostline: %s",
492 p->ghostline != MagickFalse ?
"transparent" :
"opaque");
493 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
494 " bounds: %g,%g - %g,%g",p->bounds.x1,p->bounds.y1,
495 p->bounds.x2,p->bounds.y2);
496 for (j=0; j < (ssize_t) p->number_points; j++)
497 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %g,%g",
498 p->points[j].x,p->points[j].y);
501 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end active-edge");
504 static void ReversePoints(
PointInfo *points,
const size_t number_points)
512 for (i=0; i < (ssize_t) (number_points >> 1); i++)
515 points[i]=points[number_points-(i+1)];
516 points[number_points-(i+1)]=point;
552 polygon_info=(
PolygonInfo *) AcquireMagickMemory(
sizeof(*polygon_info));
555 (void) ThrowMagickException(exception,GetMagickModule(),
556 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
560 polygon_info->edges=(
EdgeInfo *) AcquireQuantumMemory(number_edges,
561 sizeof(*polygon_info->edges));
562 if (polygon_info->edges == (
EdgeInfo *) NULL)
564 (void) ThrowMagickException(exception,GetMagickModule(),
565 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
566 return(DestroyPolygonInfo(polygon_info));
568 (void) memset(polygon_info->edges,0,number_edges*
569 sizeof(*polygon_info->edges));
572 ghostline=MagickFalse;
576 (void) memset(&point,0,
sizeof(point));
577 (void) memset(&bounds,0,
sizeof(bounds));
578 polygon_info->edges[edge].number_points=(size_t) n;
579 polygon_info->edges[edge].scanline=0.0;
580 polygon_info->edges[edge].highwater=0;
581 polygon_info->edges[edge].ghostline=ghostline;
582 polygon_info->edges[edge].direction=(ssize_t) direction;
583 polygon_info->edges[edge].points=points;
584 polygon_info->edges[edge].bounds=bounds;
585 polygon_info->number_edges=0;
586 for (i=0; path_info[i].code != EndCode; i++)
588 if ((path_info[i].code == MoveToCode) || (path_info[i].code == OpenCode) ||
589 (path_info[i].code == GhostlineCode))
594 if ((points != (
PointInfo *) NULL) && (n >= 2))
596 if (edge == number_edges)
599 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
600 polygon_info->edges,(
size_t) number_edges,
601 sizeof(*polygon_info->edges));
602 if (polygon_info->edges == (
EdgeInfo *) NULL)
604 (void) ThrowMagickException(exception,GetMagickModule(),
605 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
606 points=(
PointInfo *) RelinquishMagickMemory(points);
607 return(DestroyPolygonInfo(polygon_info));
610 polygon_info->edges[edge].number_points=(size_t) n;
611 polygon_info->edges[edge].scanline=(-1.0);
612 polygon_info->edges[edge].highwater=0;
613 polygon_info->edges[edge].ghostline=ghostline;
614 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
616 ReversePoints(points,(
size_t) n);
617 polygon_info->edges[edge].points=points;
618 polygon_info->edges[edge].bounds=bounds;
619 polygon_info->edges[edge].bounds.y1=points[0].y;
620 polygon_info->edges[edge].bounds.y2=points[n-1].y;
622 ghostline=MagickFalse;
624 polygon_info->number_edges=edge;
629 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
633 (void) ThrowMagickException(exception,GetMagickModule(),
634 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
635 return(DestroyPolygonInfo(polygon_info));
638 ghostline=path_info[i].code == GhostlineCode ? MagickTrue : MagickFalse;
639 point=path_info[i].point;
650 next_direction=((path_info[i].point.y > point.y) ||
651 ((fabs(path_info[i].point.y-point.y) < MagickEpsilon) &&
652 (path_info[i].point.x > point.x))) ? 1 : -1;
653 if ((points != (
PointInfo *) NULL) && (direction != 0) &&
654 (direction != next_direction))
660 if (edge == number_edges)
663 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
664 polygon_info->edges,(
size_t) number_edges,
665 sizeof(*polygon_info->edges));
666 if (polygon_info->edges == (
EdgeInfo *) NULL)
668 (void) ThrowMagickException(exception,GetMagickModule(),
669 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
670 points=(
PointInfo *) RelinquishMagickMemory(points);
671 return(DestroyPolygonInfo(polygon_info));
674 polygon_info->edges[edge].number_points=(size_t) n;
675 polygon_info->edges[edge].scanline=(-1.0);
676 polygon_info->edges[edge].highwater=0;
677 polygon_info->edges[edge].ghostline=ghostline;
678 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
680 ReversePoints(points,(
size_t) n);
681 polygon_info->edges[edge].points=points;
682 polygon_info->edges[edge].bounds=bounds;
683 polygon_info->edges[edge].bounds.y1=points[0].y;
684 polygon_info->edges[edge].bounds.y2=points[n-1].y;
685 polygon_info->number_edges=edge+1;
688 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
692 (void) ThrowMagickException(exception,GetMagickModule(),
693 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
694 return(DestroyPolygonInfo(polygon_info));
697 ghostline=MagickFalse;
703 direction=next_direction;
706 if (n == (ssize_t) number_points)
709 points=(
PointInfo *) ResizeQuantumMemory(points,(
size_t) number_points,
713 (void) ThrowMagickException(exception,GetMagickModule(),
714 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
715 return(DestroyPolygonInfo(polygon_info));
718 point=path_info[i].point;
720 if (point.x < bounds.x1)
722 if (point.x > bounds.x2)
729 points=(
PointInfo *) RelinquishMagickMemory(points);
732 if (edge == number_edges)
735 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
736 polygon_info->edges,(
size_t) number_edges,
737 sizeof(*polygon_info->edges));
738 if (polygon_info->edges == (
EdgeInfo *) NULL)
740 (void) ThrowMagickException(exception,GetMagickModule(),
741 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
742 return(DestroyPolygonInfo(polygon_info));
745 polygon_info->edges[edge].number_points=(size_t) n;
746 polygon_info->edges[edge].scanline=(-1.0);
747 polygon_info->edges[edge].highwater=0;
748 polygon_info->edges[edge].ghostline=ghostline;
749 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
751 ReversePoints(points,(
size_t) n);
752 polygon_info->edges[edge].points=points;
753 polygon_info->edges[edge].bounds=bounds;
754 polygon_info->edges[edge].bounds.y1=points[0].y;
755 polygon_info->edges[edge].bounds.y2=points[n-1].y;
757 ghostline=MagickFalse;
759 polygon_info->number_edges=edge;
762 polygon_info->number_edges=edge;
763 polygon_info->number_edges=edge;
764 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(polygon_info->edges,
765 polygon_info->number_edges,
sizeof(*polygon_info->edges));
766 if (polygon_info->edges == (
EdgeInfo *) NULL)
768 (void) ThrowMagickException(exception,GetMagickModule(),
769 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
770 return(DestroyPolygonInfo(polygon_info));
772 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
777 edge_info=polygon_info->edges+i;
778 edge_info->points=(
PointInfo *) ResizeQuantumMemory(edge_info->points,
779 edge_info->number_points,
sizeof(*edge_info->points));
780 if (edge_info->points == (
PointInfo *) NULL)
782 (void) ThrowMagickException(exception,GetMagickModule(),
783 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
784 return(DestroyPolygonInfo(polygon_info));
787 qsort(polygon_info->edges,(
size_t) polygon_info->number_edges,
788 sizeof(*polygon_info->edges),DrawCompareEdges);
789 if ((GetLogEventMask() & DrawEvent) != 0)
790 LogPolygonInfo(polygon_info);
791 return(polygon_info);
825 static void LogPathInfo(
const PathInfo *path_info)
830 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin vector-path");
831 for (p=path_info; p->code != EndCode; p++)
832 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
833 " %g,%g %s",p->point.x,p->point.y,p->code == GhostlineCode ?
834 "moveto ghostline" : p->code == OpenCode ?
"moveto open" :
835 p->code == MoveToCode ?
"moveto" : p->code == LineToCode ?
"lineto" :
837 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end vector-path");
840 static PathInfo *ConvertPrimitiveToPath(
865 magick_unreferenced(draw_info);
870 switch (primitive_info->primitive)
881 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
882 path_info=(
PathInfo *) AcquireQuantumMemory((
size_t) (3UL*i+1UL),
886 (void) ThrowMagickException(exception,GetMagickModule(),
887 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
891 closed_subpath=MagickFalse;
898 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
901 if (coordinates <= 0)
906 coordinates=(ssize_t) primitive_info[i].coordinates;
907 p=primitive_info[i].point;
910 closed_subpath=primitive_info[i].closed_subpath;
913 if ((code == MoveToCode) || (coordinates <= 0) ||
914 (fabs(q.x-primitive_info[i].point.x) >= MagickEpsilon) ||
915 (fabs(q.y-primitive_info[i].point.y) >= MagickEpsilon))
920 path_info[n].code=code;
921 path_info[n].point=primitive_info[i].point;
922 q=primitive_info[i].point;
927 if (closed_subpath != MagickFalse)
929 closed_subpath=MagickFalse;
935 path_info[start].code=OpenCode;
936 path_info[n].code=GhostlineCode;
937 path_info[n].point=primitive_info[i].point;
939 path_info[n].code=LineToCode;
940 path_info[n].point=p;
943 path_info[n].code=EndCode;
944 path_info[n].point.x=0.0;
945 path_info[n].point.y=0.0;
946 if (IsEventLogging() != MagickFalse)
947 LogPathInfo(path_info);
948 path_info=(
PathInfo *) ResizeQuantumMemory(path_info,(
size_t) (n+1),
977 assert(draw_info != (
DrawInfo *) NULL);
978 assert(draw_info->signature == MagickCoreSignature);
979 if (IsEventLogging() != MagickFalse)
980 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
981 if (draw_info->id != (
char *) NULL)
982 draw_info->id=DestroyString(draw_info->id);
983 if (draw_info->primitive != (
char *) NULL)
984 draw_info->primitive=DestroyString(draw_info->primitive);
985 if (draw_info->text != (
char *) NULL)
986 draw_info->text=DestroyString(draw_info->text);
987 if (draw_info->geometry != (
char *) NULL)
988 draw_info->geometry=DestroyString(draw_info->geometry);
989 if (draw_info->tile != (
Image *) NULL)
990 draw_info->tile=DestroyImage(draw_info->tile);
991 if (draw_info->fill_pattern != (
Image *) NULL)
992 draw_info->fill_pattern=DestroyImage(draw_info->fill_pattern);
993 if (draw_info->stroke_pattern != (
Image *) NULL)
994 draw_info->stroke_pattern=DestroyImage(draw_info->stroke_pattern);
995 if (draw_info->font != (
char *) NULL)
996 draw_info->font=DestroyString(draw_info->font);
997 if (draw_info->metrics != (
char *) NULL)
998 draw_info->metrics=DestroyString(draw_info->metrics);
999 if (draw_info->family != (
char *) NULL)
1000 draw_info->family=DestroyString(draw_info->family);
1001 if (draw_info->encoding != (
char *) NULL)
1002 draw_info->encoding=DestroyString(draw_info->encoding);
1003 if (draw_info->density != (
char *) NULL)
1004 draw_info->density=DestroyString(draw_info->density);
1005 if (draw_info->server_name != (
char *) NULL)
1006 draw_info->server_name=(
char *)
1007 RelinquishMagickMemory(draw_info->server_name);
1008 if (draw_info->dash_pattern != (
double *) NULL)
1009 draw_info->dash_pattern=(
double *) RelinquishMagickMemory(
1010 draw_info->dash_pattern);
1011 if (draw_info->gradient.stops != (
StopInfo *) NULL)
1012 draw_info->gradient.stops=(
StopInfo *) RelinquishMagickMemory(
1013 draw_info->gradient.stops);
1014 if (draw_info->clip_mask != (
char *) NULL)
1015 draw_info->clip_mask=DestroyString(draw_info->clip_mask);
1016 if (draw_info->clipping_mask != (
Image *) NULL)
1017 draw_info->clipping_mask=DestroyImage(draw_info->clipping_mask);
1018 if (draw_info->composite_mask != (
Image *) NULL)
1019 draw_info->composite_mask=DestroyImage(draw_info->composite_mask);
1020 draw_info->signature=(~MagickCoreSignature);
1021 draw_info=(
DrawInfo *) RelinquishMagickMemory(draw_info);
1070 inverse_edge.x1=edge->x1;
1071 inverse_edge.y1=edge->y1;
1072 inverse_edge.x2=edge->x2;
1073 inverse_edge.y2=edge->y2;
1074 z=affine->ry*y+affine->tx;
1075 if (affine->sx >= MagickEpsilon)
1077 intercept=(-z/affine->sx);
1079 if (x > inverse_edge.x1)
1081 intercept=(-z+(double) image->columns)/affine->sx;
1083 if (x < inverse_edge.x2)
1087 if (affine->sx < -MagickEpsilon)
1089 intercept=(-z+(double) image->columns)/affine->sx;
1091 if (x > inverse_edge.x1)
1093 intercept=(-z/affine->sx);
1095 if (x < inverse_edge.x2)
1099 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->columns))
1101 inverse_edge.x2=edge->x1;
1102 return(inverse_edge);
1107 z=affine->sy*y+affine->ty;
1108 if (affine->rx >= MagickEpsilon)
1110 intercept=(-z/affine->rx);
1112 if (x > inverse_edge.x1)
1114 intercept=(-z+(double) image->rows)/affine->rx;
1116 if (x < inverse_edge.x2)
1120 if (affine->rx < -MagickEpsilon)
1122 intercept=(-z+(double) image->rows)/affine->rx;
1124 if (x > inverse_edge.x1)
1126 intercept=(-z/affine->rx);
1128 if (x < inverse_edge.x2)
1132 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->rows))
1134 inverse_edge.x2=edge->x2;
1135 return(inverse_edge);
1137 return(inverse_edge);
1148 determinant=PerceptibleReciprocal(affine->sx*affine->sy-affine->rx*
1150 inverse_affine.sx=determinant*affine->sy;
1151 inverse_affine.rx=determinant*(-affine->rx);
1152 inverse_affine.ry=determinant*(-affine->ry);
1153 inverse_affine.sy=determinant*affine->sx;
1154 inverse_affine.tx=(-affine->tx)*inverse_affine.sx-affine->ty*
1156 inverse_affine.ty=(-affine->tx)*inverse_affine.rx-affine->ty*
1158 return(inverse_affine);
1161 MagickExport MagickBooleanType DrawAffineImage(
Image *image,
1200 assert(image != (
Image *) NULL);
1201 assert(image->signature == MagickCoreSignature);
1202 assert(source != (
const Image *) NULL);
1203 assert(source->signature == MagickCoreSignature);
1204 if (IsEventLogging() != MagickFalse)
1205 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1209 extent[1].x=(double) source->columns-1.0;
1211 extent[2].x=(
double) source->columns-1.0;
1212 extent[2].y=(double) source->rows-1.0;
1214 extent[3].y=(
double) source->rows-1.0;
1215 for (i=0; i < 4; i++)
1218 extent[i].x=point.x*affine->sx+point.y*affine->ry+affine->tx;
1219 extent[i].y=point.x*affine->rx+point.y*affine->sy+affine->ty;
1223 for (i=1; i < 4; i++)
1225 if (min.x > extent[i].x)
1227 if (min.y > extent[i].y)
1229 if (max.x < extent[i].x)
1231 if (max.y < extent[i].y)
1237 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
1238 return(MagickFalse);
1240 edge.x1=MagickMax(min.x,0.0);
1241 edge.y1=MagickMax(min.y,0.0);
1242 edge.x2=MagickMin(max.x,(
double) image->columns-1.0);
1243 edge.y2=MagickMin(max.y,(
double) image->rows-1.0);
1244 inverse_affine=InverseAffineMatrix(affine);
1245 GetMagickPixelPacket(image,&zero);
1246 exception=(&image->exception);
1247 start=CastDoubleToLong(ceil(edge.y1-0.5));
1248 stop=CastDoubleToLong(floor(edge.y2+0.5));
1249 source_view=AcquireVirtualCacheView(source,exception);
1250 image_view=AcquireAuthenticCacheView(image,exception);
1251 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1252 #pragma omp parallel for schedule(static) shared(status) \
1253 magick_number_threads(source,image,stop-start,1)
1255 for (y=start; y <= stop; y++)
1258 *magick_restrict indexes;
1277 if (status == MagickFalse)
1279 inverse_edge=AffineEdge(source,&inverse_affine,(
double) y,&edge);
1280 if (inverse_edge.x2 < inverse_edge.x1)
1282 q=GetCacheViewAuthenticPixels(image_view,CastDoubleToLong(
1283 ceil(inverse_edge.x1-0.5)),y,(
size_t) CastDoubleToLong(floor(
1284 inverse_edge.x2+0.5)-ceil(inverse_edge.x1-0.5)+1),1,exception);
1287 indexes=GetCacheViewAuthenticIndexQueue(image_view);
1291 for (x=CastDoubleToLong(ceil(inverse_edge.x1-0.5));
1292 x <= CastDoubleToLong(floor(inverse_edge.x2+0.5)); x++)
1294 point.x=(double) x*inverse_affine.sx+y*inverse_affine.ry+
1296 point.y=(
double) x*inverse_affine.rx+y*inverse_affine.sy+
1298 status=InterpolateMagickPixelPacket(source,source_view,
1299 UndefinedInterpolatePixel,point.x,point.y,&pixel,exception);
1300 if (status == MagickFalse)
1302 SetMagickPixelPacket(image,q,indexes+x_offset,&composite);
1303 MagickPixelCompositeOver(&pixel,pixel.opacity,&composite,
1304 composite.opacity,&composite);
1305 SetPixelPacket(image,&composite,q,indexes+x_offset);
1309 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1312 source_view=DestroyCacheView(source_view);
1313 image_view=DestroyCacheView(image_view);
1346 static MagickBooleanType DrawBoundingRectangles(
Image *image,
1375 (void) memset(primitive_info,0,
sizeof(primitive_info));
1376 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1377 status=QueryColorDatabase(
"#0000",&clone_info->fill,&image->exception);
1378 if (status == MagickFalse)
1380 clone_info=DestroyDrawInfo(clone_info);
1381 return(MagickFalse);
1385 if (clone_info->density != (
char *) NULL)
1393 flags=ParseGeometry(clone_info->density,&geometry_info);
1394 if ((flags & RhoValue) != 0)
1395 resolution.x=geometry_info.rho;
1396 resolution.y=resolution.x;
1397 if ((flags & SigmaValue) != 0)
1398 resolution.y=geometry_info.sigma;
1400 mid=(resolution.x/96.0)*ExpandAffine(&clone_info->affine)*
1401 clone_info->stroke_width/2.0;
1408 bounds=polygon_info->edges[0].bounds;
1409 for (i=1; i < (ssize_t) polygon_info->number_edges; i++)
1411 if (polygon_info->edges[i].bounds.x1 < (
double) bounds.x1)
1412 bounds.x1=polygon_info->edges[i].bounds.x1;
1413 if (polygon_info->edges[i].bounds.y1 < (
double) bounds.y1)
1414 bounds.y1=polygon_info->edges[i].bounds.y1;
1415 if (polygon_info->edges[i].bounds.x2 > (
double) bounds.x2)
1416 bounds.x2=polygon_info->edges[i].bounds.x2;
1417 if (polygon_info->edges[i].bounds.y2 > (
double) bounds.y2)
1418 bounds.y2=polygon_info->edges[i].bounds.y2;
1421 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double)
1422 image->columns ? (
double) image->columns-1 : bounds.x1;
1424 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double)
1425 image->rows ? (
double) image->rows-1 : bounds.y1;
1427 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double)
1428 image->columns ? (
double) image->columns-1 : bounds.x2;
1430 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double)
1431 image->rows ? (
double) image->rows-1 : bounds.y2;
1432 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
1434 if (polygon_info->edges[i].direction != 0)
1435 status=QueryColorDatabase(
"#f00",&clone_info->stroke,
1438 status=QueryColorDatabase(
"#0f0",&clone_info->stroke,
1440 if (status == MagickFalse)
1442 start.x=(double) (polygon_info->edges[i].bounds.x1-mid);
1443 start.y=(double) (polygon_info->edges[i].bounds.y1-mid);
1444 end.x=(double) (polygon_info->edges[i].bounds.x2+mid);
1445 end.y=(double) (polygon_info->edges[i].bounds.y2+mid);
1446 primitive_info[0].primitive=RectanglePrimitive;
1447 status&=TraceRectangle(primitive_info,start,end);
1448 primitive_info[0].method=ReplaceMethod;
1449 coordinates=(ssize_t) primitive_info[0].coordinates;
1450 primitive_info[coordinates].primitive=UndefinedPrimitive;
1451 status=DrawPrimitive(image,clone_info,primitive_info);
1452 if (status == MagickFalse)
1455 if (i < (ssize_t) polygon_info->number_edges)
1457 clone_info=DestroyDrawInfo(clone_info);
1458 return(status == 0 ? MagickFalse : MagickTrue);
1461 status=QueryColorDatabase(
"#00f",&clone_info->stroke,&image->exception);
1462 if (status == MagickFalse)
1464 clone_info=DestroyDrawInfo(clone_info);
1465 return(MagickFalse);
1467 start.x=(double) (bounds.x1-mid);
1468 start.y=(double) (bounds.y1-mid);
1469 end.x=(double) (bounds.x2+mid);
1470 end.y=(double) (bounds.y2+mid);
1471 primitive_info[0].primitive=RectanglePrimitive;
1472 status&=TraceRectangle(primitive_info,start,end);
1473 primitive_info[0].method=ReplaceMethod;
1474 coordinates=(ssize_t) primitive_info[0].coordinates;
1475 primitive_info[coordinates].primitive=UndefinedPrimitive;
1476 status=DrawPrimitive(image,clone_info,primitive_info);
1477 clone_info=DestroyDrawInfo(clone_info);
1478 return(status == 0 ? MagickFalse : MagickTrue);
1508 MagickExport MagickBooleanType DrawClipPath(
Image *image,
1509 const DrawInfo *draw_info,
const char *
id)
1520 clip_path=GetImageArtifact(image,
id);
1521 if (clip_path == (
const char *) NULL)
1522 return(MagickFalse);
1523 clipping_mask=DrawClippingMask(image,draw_info,draw_info->clip_mask,clip_path,
1525 if (clipping_mask == (
Image *) NULL)
1526 return(MagickFalse);
1527 status=SetImageClipMask(image,clipping_mask);
1528 clipping_mask=DestroyImage(clipping_mask);
1565 const char *
id,
const char *clip_path,
ExceptionInfo *exception)
1579 assert(image != (
Image *) NULL);
1580 assert(image->signature == MagickCoreSignature);
1581 assert(draw_info != (
const DrawInfo *) NULL);
1582 if (IsEventLogging() != MagickFalse)
1583 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1584 clip_mask=AcquireImage((
const ImageInfo *) NULL);
1585 status=SetImageExtent(clip_mask,image->columns,image->rows);
1586 if (status == MagickFalse)
1587 return(DestroyImage(clip_mask));
1588 status=SetImageClipMask(image,(
Image *) NULL);
1589 status=QueryColorCompliance(
"#0000",AllCompliance,
1590 &clip_mask->background_color,exception);
1591 clip_mask->background_color.opacity=(Quantum) TransparentOpacity;
1592 status=SetImageBackgroundColor(clip_mask);
1593 if (draw_info->debug != MagickFalse)
1594 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin clip-path %s",
1596 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1597 (void) CloneString(&clone_info->primitive,clip_path);
1598 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1600 if (clone_info->clip_mask != (
char *) NULL)
1601 clone_info->clip_mask=DestroyString(clone_info->clip_mask);
1602 (void) QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1604 clone_info->stroke_width=0.0;
1605 clone_info->opacity=OpaqueOpacity;
1606 clone_info->clip_path=MagickTrue;
1607 status=RenderMVGContent(clip_mask,clone_info,0);
1608 clone_info=DestroyDrawInfo(clone_info);
1609 status&=SeparateImageChannel(clip_mask,TrueAlphaChannel);
1610 if (draw_info->compliance != SVGCompliance)
1611 status&=NegateImage(clip_mask,MagickFalse);
1612 if (status == MagickFalse)
1613 clip_mask=DestroyImage(clip_mask);
1614 if (draw_info->debug != MagickFalse)
1615 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end clip-path");
1651 const char *
id,
const char *mask_path,
ExceptionInfo *exception)
1665 assert(image != (
Image *) NULL);
1666 assert(image->signature == MagickCoreSignature);
1667 assert(draw_info != (
const DrawInfo *) NULL);
1668 if (IsEventLogging() != MagickFalse)
1669 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1670 composite_mask=AcquireImage((
const ImageInfo *) NULL);
1671 status=SetImageExtent(composite_mask,image->columns,image->rows);
1672 if (status == MagickFalse)
1673 return(DestroyImage(composite_mask));
1674 status=SetImageMask(image,(
Image *) NULL);
1675 status=QueryColorCompliance(
"#0000",AllCompliance,
1676 &composite_mask->background_color,exception);
1677 composite_mask->background_color.opacity=(Quantum) TransparentOpacity;
1678 (void) SetImageBackgroundColor(composite_mask);
1679 if (draw_info->debug != MagickFalse)
1680 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin mask-path %s",
1682 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1683 (void) CloneString(&clone_info->primitive,mask_path);
1684 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1686 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1688 clone_info->stroke_width=0.0;
1689 clone_info->opacity=OpaqueOpacity;
1690 status=RenderMVGContent(composite_mask,clone_info,0);
1691 clone_info=DestroyDrawInfo(clone_info);
1692 status&=SeparateImageChannel(composite_mask,TrueAlphaChannel);
1693 status&=NegateImage(composite_mask,MagickFalse);
1694 if (status == MagickFalse)
1695 composite_mask=DestroyImage(composite_mask);
1696 if (draw_info->debug != MagickFalse)
1697 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end mask-path");
1698 return(composite_mask);
1730 static MagickBooleanType DrawDashPolygon(
const DrawInfo *draw_info,
1761 assert(draw_info != (
const DrawInfo *) NULL);
1762 if (draw_info->debug != MagickFalse)
1763 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-dash");
1764 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
1765 number_vertices=(size_t) i;
1766 dash_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
1767 (2UL*number_vertices+32UL),
sizeof(*dash_polygon));
1770 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1771 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
1772 return(MagickFalse);
1774 (void) memset(dash_polygon,0,(2UL*number_vertices+32UL)*
1775 sizeof(*dash_polygon));
1776 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1777 clone_info->miterlimit=0;
1778 dash_polygon[0]=primitive_info[0];
1779 scale=ExpandAffine(&draw_info->affine);
1780 length=scale*draw_info->dash_pattern[0];
1781 offset=fabs(draw_info->dash_offset) >= MagickEpsilon ?
1782 scale*draw_info->dash_offset : 0.0;
1784 for (n=0; offset > 0.0; j=0)
1786 if (draw_info->dash_pattern[n] <= 0.0)
1788 length=scale*(draw_info->dash_pattern[n]+(n == 0 ? -0.5 : 0.5));
1789 if (offset > length)
1793 length=scale*draw_info->dash_pattern[n];
1796 if (offset < length)
1808 for (i=1; (i < (ssize_t) number_vertices) && (length >= 0.0); i++)
1810 dx=primitive_info[i].point.x-primitive_info[i-1].point.x;
1811 dy=primitive_info[i].point.y-primitive_info[i-1].point.y;
1812 maximum_length=hypot(dx,dy);
1813 if (maximum_length > (
double) (MaxBezierCoordinates >> 2))
1815 if (fabs(length) < MagickEpsilon)
1817 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1819 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1821 length=scale*draw_info->dash_pattern[n];
1823 for (total_length=0.0; (length >= 0.0) && (maximum_length >= (total_length+length)); )
1825 total_length+=length;
1826 if ((n & 0x01) != 0)
1828 dash_polygon[0]=primitive_info[0];
1829 dash_polygon[0].point.x=(double) (primitive_info[i-1].point.x+dx*
1830 total_length*PerceptibleReciprocal(maximum_length));
1831 dash_polygon[0].point.y=(double) (primitive_info[i-1].point.y+dy*
1832 total_length*PerceptibleReciprocal(maximum_length));
1837 if ((j+1) > (ssize_t) number_vertices)
1839 dash_polygon[j]=primitive_info[i-1];
1840 dash_polygon[j].point.x=(double) (primitive_info[i-1].point.x+dx*
1841 total_length*PerceptibleReciprocal(maximum_length));
1842 dash_polygon[j].point.y=(double) (primitive_info[i-1].point.y+dy*
1843 total_length*PerceptibleReciprocal(maximum_length));
1844 dash_polygon[j].coordinates=1;
1846 dash_polygon[0].coordinates=(size_t) j;
1847 dash_polygon[j].primitive=UndefinedPrimitive;
1848 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1849 if (status == MagickFalse)
1852 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1854 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1856 length=scale*draw_info->dash_pattern[n];
1858 length-=(maximum_length-total_length);
1859 if ((n & 0x01) != 0)
1861 dash_polygon[j]=primitive_info[i];
1862 dash_polygon[j].coordinates=1;
1865 if ((status != MagickFalse) && (total_length < maximum_length) &&
1866 ((n & 0x01) == 0) && (j > 1))
1868 dash_polygon[j]=primitive_info[i-1];
1869 dash_polygon[j].point.x+=MagickEpsilon;
1870 dash_polygon[j].point.y+=MagickEpsilon;
1871 dash_polygon[j].coordinates=1;
1873 dash_polygon[0].coordinates=(size_t) j;
1874 dash_polygon[j].primitive=UndefinedPrimitive;
1875 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1877 dash_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(dash_polygon);
1878 clone_info=DestroyDrawInfo(clone_info);
1879 if (draw_info->debug != MagickFalse)
1880 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-dash");
1881 return(status != 0 ? MagickTrue : MagickFalse);
1910 static inline double GetStopColorOffset(
const GradientInfo *gradient,
1911 const ssize_t x,
const ssize_t y)
1913 switch (gradient->type)
1915 case UndefinedGradient:
1916 case LinearGradient:
1931 gradient_vector=(&gradient->gradient_vector);
1932 p.x=gradient_vector->x2-gradient_vector->x1;
1933 p.y=gradient_vector->y2-gradient_vector->y1;
1934 q.x=(double) x-gradient_vector->x1;
1935 q.y=(
double) y-gradient_vector->y1;
1936 length=sqrt(q.x*q.x+q.y*q.y);
1937 gamma=sqrt(p.x*p.x+p.y*p.y)*length;
1938 gamma=PerceptibleReciprocal(gamma);
1939 scale=p.x*q.x+p.y*q.y;
1940 offset=gamma*scale*length;
1943 case RadialGradient:
1948 if (gradient->spread == RepeatSpread)
1950 v.x=(double) x-gradient->center.x;
1951 v.y=(
double) y-gradient->center.y;
1952 return(sqrt(v.x*v.x+v.y*v.y));
1954 v.x=(double) (((x-gradient->center.x)*cos(DegreesToRadians(
1955 gradient->angle)))+((y-gradient->center.y)*sin(DegreesToRadians(
1956 gradient->angle))))*PerceptibleReciprocal(gradient->radii.x);
1957 v.y=(double) (((x-gradient->center.x)*sin(DegreesToRadians(
1958 gradient->angle)))-((y-gradient->center.y)*cos(DegreesToRadians(
1959 gradient->angle))))*PerceptibleReciprocal(gradient->radii.y);
1960 return(sqrt(v.x*v.x+v.y*v.y));
1966 MagickExport MagickBooleanType DrawGradientImage(
Image *image,
2002 assert(image != (
Image *) NULL);
2003 assert(image->signature == MagickCoreSignature);
2004 assert(draw_info != (
const DrawInfo *) NULL);
2005 if (IsEventLogging() != MagickFalse)
2006 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2007 gradient=(&draw_info->gradient);
2008 gradient_vector=(&gradient->gradient_vector);
2009 point.x=gradient_vector->x2-gradient_vector->x1;
2010 point.y=gradient_vector->y2-gradient_vector->y1;
2011 length=sqrt(point.x*point.x+point.y*point.y);
2012 bounding_box=gradient->bounding_box;
2014 exception=(&image->exception);
2015 GetMagickPixelPacket(image,&zero);
2016 image_view=AcquireAuthenticCacheView(image,exception);
2017 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2018 #pragma omp parallel for schedule(static) shared(status) \
2019 magick_number_threads(image,image,bounding_box.height-bounding_box.y,1)
2021 for (y=bounding_box.y; y < (ssize_t) bounding_box.height; y++)
2032 *magick_restrict indexes;
2044 if (status == MagickFalse)
2046 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2052 indexes=GetCacheViewAuthenticIndexQueue(image_view);
2055 offset=GetStopColorOffset(gradient,0,y);
2056 if (gradient->type != RadialGradient)
2057 offset*=PerceptibleReciprocal(length);
2058 for (x=bounding_box.x; x < (ssize_t) bounding_box.width; x++)
2060 SetMagickPixelPacket(image,q,indexes+x,&pixel);
2061 switch (gradient->spread)
2063 case UndefinedSpread:
2066 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2067 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2069 offset=GetStopColorOffset(gradient,x,y);
2070 if (gradient->type != RadialGradient)
2071 offset*=PerceptibleReciprocal(length);
2073 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2074 if (offset < gradient->stops[i].offset)
2076 if ((offset < 0.0) || (i == 0))
2077 composite=gradient->stops[0].color;
2079 if ((offset > 1.0) || (i == (ssize_t) gradient->number_stops))
2080 composite=gradient->stops[gradient->number_stops-1].color;
2085 alpha=(offset-gradient->stops[i].offset)/
2086 (gradient->stops[j].offset-gradient->stops[i].offset);
2087 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2088 &gradient->stops[j].color,alpha,&composite);
2094 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2095 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2097 offset=GetStopColorOffset(gradient,x,y);
2098 if (gradient->type != RadialGradient)
2099 offset*=PerceptibleReciprocal(length);
2103 if ((ssize_t) fmod(offset,2.0) == 0)
2104 offset=fmod(offset,1.0);
2106 offset=1.0-fmod(offset,1.0);
2107 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2108 if (offset < gradient->stops[i].offset)
2111 composite=gradient->stops[0].color;
2113 if (i == (ssize_t) gradient->number_stops)
2114 composite=gradient->stops[gradient->number_stops-1].color;
2119 alpha=(offset-gradient->stops[i].offset)/
2120 (gradient->stops[j].offset-gradient->stops[i].offset);
2121 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2122 &gradient->stops[j].color,alpha,&composite);
2134 antialias=MagickFalse;
2136 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2137 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2139 offset=GetStopColorOffset(gradient,x,y);
2140 if (gradient->type == LinearGradient)
2142 repeat=fmod(offset,length);
2144 repeat=length-fmod(-repeat,length);
2146 repeat=fmod(offset,length);
2147 antialias=(repeat < length) && ((repeat+1.0) > length) ?
2148 MagickTrue : MagickFalse;
2149 offset=PerceptibleReciprocal(length)*repeat;
2153 repeat=fmod(offset,(
double) gradient->radius);
2155 repeat=gradient->radius-fmod(-repeat,
2156 (
double) gradient->radius);
2158 repeat=fmod(offset,(
double) gradient->radius);
2159 antialias=repeat+1.0 > gradient->radius ? MagickTrue :
2161 offset=repeat*PerceptibleReciprocal(gradient->radius);
2164 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2165 if (offset < gradient->stops[i].offset)
2168 composite=gradient->stops[0].color;
2170 if (i == (ssize_t) gradient->number_stops)
2171 composite=gradient->stops[gradient->number_stops-1].color;
2176 alpha=(offset-gradient->stops[i].offset)/
2177 (gradient->stops[j].offset-gradient->stops[i].offset);
2178 if (antialias != MagickFalse)
2180 if (gradient->type == LinearGradient)
2181 alpha=length-repeat;
2183 alpha=gradient->radius-repeat;
2185 j=(ssize_t) gradient->number_stops-1L;
2187 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2188 &gradient->stops[j].color,alpha,&composite);
2193 MagickPixelCompositeOver(&composite,composite.opacity,&pixel,
2194 pixel.opacity,&pixel);
2195 SetPixelPacket(image,&pixel,q,indexes+x);
2198 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2201 image_view=DestroyCacheView(image_view);
2234 static MagickBooleanType CheckPrimitiveExtent(
MVGInfo *mvg_info,
2238 **text = (
char **) NULL;
2252 quantum=
sizeof(**mvg_info->primitive_info);
2253 extent=(double) mvg_info->offset+pad+(PrimitiveExtentPad+1)*quantum;
2254 if (extent <= (
double) *mvg_info->extent)
2256 if ((extent >= (
double) MAGICK_SSIZE_MAX) || (IsNaN(extent) != 0))
2257 return(MagickFalse);
2258 if (mvg_info->offset > 0)
2260 text=(
char **) AcquireQuantumMemory(mvg_info->offset,
sizeof(*text));
2261 if (text == (
char **) NULL)
2262 return(MagickFalse);
2263 for (i=0; i < mvg_info->offset; i++)
2264 text[i]=(*mvg_info->primitive_info)[i].text;
2266 *mvg_info->primitive_info=(
PrimitiveInfo *) ResizeQuantumMemory(
2267 *mvg_info->primitive_info,(
size_t) (extent+1),quantum);
2270 if (text != (
char **) NULL)
2271 text=(
char **) RelinquishMagickMemory(text);
2272 *mvg_info->extent=(size_t) extent;
2273 for (i=mvg_info->offset+1; i <= (ssize_t) extent; i++)
2275 (*mvg_info->primitive_info)[i].primitive=UndefinedPrimitive;
2276 (*mvg_info->primitive_info)[i].text=(
char *) NULL;
2283 if (text != (
char **) NULL)
2285 for (i=0; i < mvg_info->offset; i++)
2286 if (text[i] != (
char *) NULL)
2287 text[i]=DestroyString(text[i]);
2288 text=(
char **) RelinquishMagickMemory(text);
2290 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
2291 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
2292 *mvg_info->primitive_info=(
PrimitiveInfo *) AcquireCriticalMemory((
size_t)
2293 (PrimitiveExtentPad+1)*quantum);
2294 (void) memset(*mvg_info->primitive_info,0,(
size_t) ((PrimitiveExtentPad+1)*
2296 *mvg_info->extent=1;
2298 return(MagickFalse);
2301 static inline double GetDrawValue(
const char *magick_restrict
string,
2302 char **magick_restrict sentinal)
2305 **magick_restrict q;
2311 value=InterpretLocaleValue(
string,q);
2316 static int MVGMacroCompare(
const void *target,
const void *source)
2322 p=(
const char *) target;
2323 q=(
const char *) source;
2324 return(strcmp(p,q));
2345 if (primitive == (
const char *) NULL)
2347 macros=NewSplayTree(MVGMacroCompare,RelinquishMagickMemory,
2348 RelinquishMagickMemory);
2349 macro=AcquireString(primitive);
2350 token=AcquireString(primitive);
2351 extent=strlen(token)+MagickPathExtent;
2352 for (q=primitive; *q !=
'\0'; )
2354 if (GetNextToken(q,&q,extent,token) < 1)
2358 if (LocaleCompare(
"push",token) == 0)
2364 (void) GetNextToken(q,&q,extent,token);
2368 name[MagickPathExtent];
2379 (void) GetNextToken(q,&q,extent,token);
2382 (void) CopyMagickString(name,token,MagickPathExtent);
2384 for (p=q; *p !=
'\0'; )
2386 if (GetNextToken(p,&p,extent,token) < 1)
2390 if (LocaleCompare(token,
"pop") == 0)
2392 end=p-strlen(token)-1;
2395 if (LocaleCompare(token,
"push") == 0)
2397 if ((n == 0) && (end > start))
2402 (void) GetNextToken(p,&p,extent,token);
2403 (void) CopyMagickString(macro,start,(
size_t) (end-start));
2404 (void) AddValueToSplayTree(macros,ConstantString(name),
2405 ConstantString(macro));
2412 token=DestroyString(token);
2413 macro=DestroyString(macro);
2417 static inline MagickBooleanType IsPoint(
const char *point)
2425 value=GetDrawValue(point,&p);
2426 return((fabs(value) < MagickEpsilon) && (p == point) ? MagickFalse :
2430 static inline MagickBooleanType TracePoint(
PrimitiveInfo *primitive_info,
2433 primitive_info->coordinates=1;
2434 primitive_info->closed_subpath=MagickFalse;
2435 primitive_info->point=point;
2439 static MagickBooleanType RenderMVGContent(
Image *image,
2440 const DrawInfo *draw_info,
const size_t depth)
2442 #define RenderImageTag "Render/Image"
2449 key[2*MaxTextExtent],
2450 keyword[MaxTextExtent],
2451 geometry[MaxTextExtent],
2452 name[MaxTextExtent],
2454 pattern[MaxTextExtent],
2520 assert(image != (
Image *) NULL);
2521 assert(image->signature == MagickCoreSignature);
2522 assert(draw_info != (
DrawInfo *) NULL);
2523 assert(draw_info->signature == MagickCoreSignature);
2524 if (IsEventLogging() != MagickFalse)
2525 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2526 if (depth > MagickMaxRecursionDepth)
2527 ThrowBinaryImageException(DrawError,
"VectorGraphicsNestedTooDeeply",
2529 if ((draw_info->primitive == (
char *) NULL) ||
2530 (*draw_info->primitive ==
'\0'))
2531 return(MagickFalse);
2532 if (draw_info->debug != MagickFalse)
2533 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"begin draw-image");
2534 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
2535 return(MagickFalse);
2536 if (image->matte == MagickFalse)
2538 status=SetImageAlphaChannel(image,OpaqueAlphaChannel);
2539 if (status == MagickFalse)
2540 return(MagickFalse);
2542 primitive=(
char *) NULL;
2543 if ((*draw_info->primitive ==
'@') && (strlen(draw_info->primitive) > 1) &&
2544 (*(draw_info->primitive+1) !=
'-') && (depth == 0))
2545 primitive=FileToString(draw_info->primitive+1,~0UL,&image->exception);
2547 primitive=AcquireString(draw_info->primitive);
2548 if (primitive == (
char *) NULL)
2549 return(MagickFalse);
2550 primitive_extent=(double) strlen(primitive);
2551 (void) SetImageArtifact(image,
"mvg:vector-graphics",primitive);
2556 graphic_context=(
DrawInfo **) AcquireMagickMemory(
sizeof(*graphic_context));
2557 if (graphic_context == (
DrawInfo **) NULL)
2559 primitive=DestroyString(primitive);
2560 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2563 number_points=(size_t) PrimitiveExtentPad;
2564 primitive_info=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
2565 (number_points+1),
sizeof(*primitive_info));
2568 primitive=DestroyString(primitive);
2569 for ( ; n >= 0; n--)
2570 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
2571 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
2572 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2575 (void) memset(primitive_info,0,(
size_t) (number_points+1)*
2576 sizeof(*primitive_info));
2577 (void) memset(&mvg_info,0,
sizeof(mvg_info));
2578 mvg_info.primitive_info=(&primitive_info);
2579 mvg_info.extent=(&number_points);
2580 mvg_info.exception=(&image->exception);
2581 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
2582 graphic_context[n]->viewbox=image->page;
2583 if ((image->page.width == 0) || (image->page.height == 0))
2585 graphic_context[n]->viewbox.width=image->columns;
2586 graphic_context[n]->viewbox.height=image->rows;
2588 token=AcquireString(primitive);
2589 extent=strlen(token)+MaxTextExtent;
2593 macros=GetMVGMacros(primitive);
2594 status=QueryColorDatabase(
"#000000",&start_color,&image->exception);
2595 for (q=primitive; *q !=
'\0'; )
2600 if (GetNextToken(q,&q,MaxTextExtent,keyword) < 1)
2602 if (*keyword ==
'\0')
2604 if (*keyword ==
'#')
2609 while ((*q !=
'\n') && (*q !=
'\0'))
2613 p=q-strlen(keyword)-1;
2614 primitive_type=UndefinedPrimitive;
2615 current=graphic_context[n]->affine;
2616 GetAffineMatrix(&affine);
2625 if (LocaleCompare(
"affine",keyword) == 0)
2627 (void) GetNextToken(q,&q,extent,token);
2628 affine.sx=GetDrawValue(token,&next_token);
2629 if (token == next_token)
2630 ThrowPointExpectedException(image,token);
2631 (void) GetNextToken(q,&q,extent,token);
2633 (void) GetNextToken(q,&q,extent,token);
2634 affine.rx=GetDrawValue(token,&next_token);
2635 if (token == next_token)
2636 ThrowPointExpectedException(image,token);
2637 (void) GetNextToken(q,&q,extent,token);
2639 (void) GetNextToken(q,&q,extent,token);
2640 affine.ry=GetDrawValue(token,&next_token);
2641 if (token == next_token)
2642 ThrowPointExpectedException(image,token);
2643 (void) GetNextToken(q,&q,extent,token);
2645 (void) GetNextToken(q,&q,extent,token);
2646 affine.sy=GetDrawValue(token,&next_token);
2647 if (token == next_token)
2648 ThrowPointExpectedException(image,token);
2649 (void) GetNextToken(q,&q,extent,token);
2651 (void) GetNextToken(q,&q,extent,token);
2652 affine.tx=GetDrawValue(token,&next_token);
2653 if (token == next_token)
2654 ThrowPointExpectedException(image,token);
2655 (void) GetNextToken(q,&q,extent,token);
2657 (void) GetNextToken(q,&q,extent,token);
2658 affine.ty=GetDrawValue(token,&next_token);
2659 if (token == next_token)
2660 ThrowPointExpectedException(image,token);
2663 if (LocaleCompare(
"arc",keyword) == 0)
2665 primitive_type=ArcPrimitive;
2674 if (LocaleCompare(
"bezier",keyword) == 0)
2676 primitive_type=BezierPrimitive;
2679 if (LocaleCompare(
"border-color",keyword) == 0)
2681 (void) GetNextToken(q,&q,extent,token);
2682 status&=QueryColorDatabase(token,&graphic_context[n]->border_color,
2692 if (LocaleCompare(
"class",keyword) == 0)
2697 (void) GetNextToken(q,&q,extent,token);
2703 if (LocaleCompare(token,graphic_context[n]->
id) == 0)
2705 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2706 if ((graphic_context[n]->render != MagickFalse) &&
2707 (mvg_class != (
const char *) NULL) && (p > primitive))
2718 offset=(ssize_t) (p-primitive);
2719 elements=AcquireString(primitive);
2720 elements[offset]=
'\0';
2721 (void) ConcatenateString(&elements,mvg_class);
2722 (void) ConcatenateString(&elements,
"\n");
2723 (void) ConcatenateString(&elements,q);
2724 primitive=DestroyString(primitive);
2730 if (LocaleCompare(
"clip-path",keyword) == 0)
2738 (void) GetNextToken(q,&q,extent,token);
2744 (void) CloneString(&graphic_context[n]->clip_mask,token);
2745 clip_path=(
const char *) GetValueFromSplayTree(macros,token);
2746 if (clip_path != (
const char *) NULL)
2748 if (graphic_context[n]->clipping_mask != (
Image *) NULL)
2749 graphic_context[n]->clipping_mask=
2750 DestroyImage(graphic_context[n]->clipping_mask);
2751 graphic_context[n]->clipping_mask=DrawClippingMask(image,
2752 graphic_context[n],token,clip_path,&image->exception);
2753 if (graphic_context[n]->compliance != SVGCompliance)
2758 clip_path=(
const char *) GetValueFromSplayTree(macros,
2759 graphic_context[n]->clip_mask);
2760 if (clip_path != (
const char *) NULL)
2761 (
void) SetImageArtifact(image,
2762 graphic_context[n]->clip_mask,clip_path);
2763 status&=DrawClipPath(image,graphic_context[n],
2764 graphic_context[n]->clip_mask);
2769 if (LocaleCompare(
"clip-rule",keyword) == 0)
2774 (void) GetNextToken(q,&q,extent,token);
2775 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2777 if (fill_rule == -1)
2782 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2785 if (LocaleCompare(
"clip-units",keyword) == 0)
2790 (void) GetNextToken(q,&q,extent,token);
2791 clip_units=ParseCommandOption(MagickClipPathOptions,MagickFalse,
2793 if (clip_units == -1)
2798 graphic_context[n]->clip_units=(ClipPathUnits) clip_units;
2799 if (clip_units == ObjectBoundingBox)
2801 GetAffineMatrix(¤t);
2802 affine.sx=draw_info->bounds.x2;
2803 affine.sy=draw_info->bounds.y2;
2804 affine.tx=draw_info->bounds.x1;
2805 affine.ty=draw_info->bounds.y1;
2810 if (LocaleCompare(
"circle",keyword) == 0)
2812 primitive_type=CirclePrimitive;
2815 if (LocaleCompare(
"color",keyword) == 0)
2817 primitive_type=ColorPrimitive;
2820 if (LocaleCompare(
"compliance",keyword) == 0)
2826 (void) GetNextToken(q,&q,extent,token);
2827 graphic_context[n]->compliance=(ComplianceType) ParseCommandOption(
2828 MagickComplianceOptions,MagickFalse,token);
2831 if (LocaleCompare(
"currentColor",keyword) == 0)
2833 (void) GetNextToken(q,&q,extent,token);
2842 if (LocaleCompare(
"decorate",keyword) == 0)
2847 (void) GetNextToken(q,&q,extent,token);
2848 decorate=ParseCommandOption(MagickDecorateOptions,MagickFalse,
2855 graphic_context[n]->decorate=(DecorationType) decorate;
2858 if (LocaleCompare(
"density",keyword) == 0)
2860 (void) GetNextToken(q,&q,extent,token);
2861 (void) CloneString(&graphic_context[n]->density,token);
2864 if (LocaleCompare(
"direction",keyword) == 0)
2869 (void) GetNextToken(q,&q,extent,token);
2870 direction=ParseCommandOption(MagickDirectionOptions,MagickFalse,
2872 if (direction == -1)
2875 graphic_context[n]->direction=(DirectionType) direction;
2884 if (LocaleCompare(
"ellipse",keyword) == 0)
2886 primitive_type=EllipsePrimitive;
2889 if (LocaleCompare(
"encoding",keyword) == 0)
2891 (void) GetNextToken(q,&q,extent,token);
2892 (void) CloneString(&graphic_context[n]->encoding,token);
2901 if (LocaleCompare(
"fill",keyword) == 0)
2906 (void) GetNextToken(q,&q,extent,token);
2907 if (graphic_context[n]->clip_path != MagickFalse)
2909 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2910 if (mvg_class != (
const char *) NULL)
2912 (void) DrawPatternPath(image,draw_info,mvg_class,
2913 &graphic_context[n]->fill_pattern);
2916 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
2917 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
2919 (void) DrawPatternPath(image,draw_info,token,
2920 &graphic_context[n]->fill_pattern);
2923 status&=QueryColorDatabase(token,&graphic_context[n]->fill,
2925 if (graphic_context[n]->fill_opacity != OpaqueOpacity)
2926 graphic_context[n]->fill.opacity=ClampToQuantum(
2927 graphic_context[n]->fill_opacity);
2930 if (LocaleCompare(
"fill-opacity",keyword) == 0)
2935 (void) GetNextToken(q,&q,extent,token);
2936 if (graphic_context[n]->clip_path != MagickFalse)
2938 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
2939 opacity=MagickMin(MagickMax(factor*
2940 GetDrawValue(token,&next_token),0.0),1.0);
2941 if (token == next_token)
2942 ThrowPointExpectedException(image,token);
2943 if (graphic_context[n]->compliance == SVGCompliance)
2944 graphic_context[n]->fill_opacity*=(1.0-opacity);
2946 graphic_context[n]->fill_opacity=(QuantumRange-
2947 graphic_context[n]->fill_opacity)*(1.0-opacity);
2948 if (graphic_context[n]->fill.opacity != TransparentOpacity)
2949 graphic_context[n]->fill.opacity=(Quantum)
2950 graphic_context[n]->fill_opacity;
2952 graphic_context[n]->fill.opacity=ClampToQuantum(QuantumRange*
2956 if (LocaleCompare(
"fill-rule",keyword) == 0)
2961 (void) GetNextToken(q,&q,extent,token);
2962 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2964 if (fill_rule == -1)
2969 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2972 if (LocaleCompare(
"font",keyword) == 0)
2974 (void) GetNextToken(q,&q,extent,token);
2975 (void) CloneString(&graphic_context[n]->font,token);
2976 if (LocaleCompare(
"none",token) == 0)
2977 graphic_context[n]->font=(
char *) RelinquishMagickMemory(
2978 graphic_context[n]->font);
2981 if (LocaleCompare(
"font-family",keyword) == 0)
2983 (void) GetNextToken(q,&q,extent,token);
2984 (void) CloneString(&graphic_context[n]->family,token);
2987 if (LocaleCompare(
"font-size",keyword) == 0)
2989 (void) GetNextToken(q,&q,extent,token);
2990 graphic_context[n]->pointsize=GetDrawValue(token,&next_token);
2991 if (token == next_token)
2992 ThrowPointExpectedException(image,token);
2995 if (LocaleCompare(
"font-stretch",keyword) == 0)
3000 (void) GetNextToken(q,&q,extent,token);
3001 stretch=ParseCommandOption(MagickStretchOptions,MagickFalse,token);
3007 graphic_context[n]->stretch=(StretchType) stretch;
3010 if (LocaleCompare(
"font-style",keyword) == 0)
3015 (void) GetNextToken(q,&q,extent,token);
3016 style=ParseCommandOption(MagickStyleOptions,MagickFalse,token);
3022 graphic_context[n]->style=(StyleType) style;
3025 if (LocaleCompare(
"font-weight",keyword) == 0)
3030 (void) GetNextToken(q,&q,extent,token);
3031 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,token);
3033 weight=(ssize_t) StringToUnsignedLong(token);
3034 graphic_context[n]->weight=(size_t) weight;
3043 if (LocaleCompare(
"gradient-units",keyword) == 0)
3045 (void) GetNextToken(q,&q,extent,token);
3048 if (LocaleCompare(
"gravity",keyword) == 0)
3053 (void) GetNextToken(q,&q,extent,token);
3054 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,token);
3060 graphic_context[n]->gravity=(GravityType) gravity;
3069 if (LocaleCompare(
"image",keyword) == 0)
3074 primitive_type=ImagePrimitive;
3075 (void) GetNextToken(q,&q,extent,token);
3076 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,token);
3082 graphic_context[n]->compose=(CompositeOperator) compose;
3085 if (LocaleCompare(
"interline-spacing",keyword) == 0)
3087 (void) GetNextToken(q,&q,extent,token);
3088 graphic_context[n]->interline_spacing=GetDrawValue(token,
3090 if (token == next_token)
3091 ThrowPointExpectedException(image,token);
3094 if (LocaleCompare(
"interword-spacing",keyword) == 0)
3096 (void) GetNextToken(q,&q,extent,token);
3097 graphic_context[n]->interword_spacing=GetDrawValue(token,
3099 if (token == next_token)
3100 ThrowPointExpectedException(image,token);
3109 if (LocaleCompare(
"kerning",keyword) == 0)
3111 (void) GetNextToken(q,&q,extent,token);
3112 graphic_context[n]->kerning=GetDrawValue(token,&next_token);
3113 if (token == next_token)
3114 ThrowPointExpectedException(image,token);
3123 if (LocaleCompare(
"letter-spacing",keyword) == 0)
3125 (void) GetNextToken(q,&q,extent,token);
3126 if (IsPoint(token) == MagickFalse)
3128 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3129 clone_info->text=AcquireString(
" ");
3130 status&=GetTypeMetrics(image,clone_info,&metrics);
3131 graphic_context[n]->kerning=metrics.width*
3132 GetDrawValue(token,&next_token);
3133 clone_info=DestroyDrawInfo(clone_info);
3134 if (token == next_token)
3135 ThrowPointExpectedException(image,token);
3138 if (LocaleCompare(
"line",keyword) == 0)
3140 primitive_type=LinePrimitive;
3149 if (LocaleCompare(
"mask",keyword) == 0)
3157 (void) GetNextToken(q,&q,extent,token);
3158 mask_path=(
const char *) GetValueFromSplayTree(macros,token);
3159 if (mask_path != (
const char *) NULL)
3161 if (graphic_context[n]->composite_mask != (
Image *) NULL)
3162 graphic_context[n]->composite_mask=
3163 DestroyImage(graphic_context[n]->composite_mask);
3164 graphic_context[n]->composite_mask=DrawCompositeMask(image,
3165 graphic_context[n],token,mask_path,&image->exception);
3166 if (graphic_context[n]->compliance != SVGCompliance)
3167 status=SetImageMask(image,graphic_context[n]->composite_mask);
3171 if (LocaleCompare(
"matte",keyword) == 0)
3173 primitive_type=MattePrimitive;
3182 if (LocaleCompare(
"offset",keyword) == 0)
3184 (void) GetNextToken(q,&q,extent,token);
3187 if (LocaleCompare(
"opacity",keyword) == 0)
3192 (void) GetNextToken(q,&q,extent,token);
3193 if (graphic_context[n]->clip_path != MagickFalse)
3195 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3196 opacity=MagickMin(MagickMax(factor*
3197 GetDrawValue(token,&next_token),0.0),1.0);
3198 if (token == next_token)
3199 ThrowPointExpectedException(image,token);
3200 if (graphic_context[n]->compliance == SVGCompliance)
3202 graphic_context[n]->fill_opacity*=(1.0-opacity);
3203 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3207 graphic_context[n]->fill_opacity=(QuantumRange-
3208 graphic_context[n]->fill_opacity)*(1.0-opacity);
3209 graphic_context[n]->stroke_opacity=(QuantumRange-
3210 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3220 if (LocaleCompare(
"path",keyword) == 0)
3222 primitive_type=PathPrimitive;
3225 if (LocaleCompare(
"point",keyword) == 0)
3227 primitive_type=PointPrimitive;
3230 if (LocaleCompare(
"polyline",keyword) == 0)
3232 primitive_type=PolylinePrimitive;
3235 if (LocaleCompare(
"polygon",keyword) == 0)
3237 primitive_type=PolygonPrimitive;
3240 if (LocaleCompare(
"pop",keyword) == 0)
3242 if (GetNextToken(q,&q,extent,token) < 1)
3244 if (LocaleCompare(
"class",token) == 0)
3246 if (LocaleCompare(
"clip-path",token) == 0)
3248 if (LocaleCompare(
"defs",token) == 0)
3251 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3255 if (LocaleCompare(
"gradient",token) == 0)
3257 if (LocaleCompare(
"graphic-context",token) == 0)
3261 (void) ThrowMagickException(&image->exception,
3262 GetMagickModule(),DrawError,
3263 "UnbalancedGraphicContextPushPop",
"`%s'",token);
3268 if ((graphic_context[n]->clip_mask != (
char *) NULL) &&
3269 (graphic_context[n]->compliance != SVGCompliance))
3270 if (LocaleCompare(graphic_context[n]->clip_mask,
3271 graphic_context[n-1]->clip_mask) != 0)
3272 status=SetImageClipMask(image,(
Image *) NULL);
3273 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
3277 if (LocaleCompare(
"mask",token) == 0)
3279 if (LocaleCompare(
"pattern",token) == 0)
3281 if (LocaleCompare(
"symbol",token) == 0)
3284 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3291 if (LocaleCompare(
"push",keyword) == 0)
3293 if (GetNextToken(q,&q,extent,token) < 1)
3295 if (LocaleCompare(
"class",token) == 0)
3300 for (p=q; *q !=
'\0'; )
3302 if (GetNextToken(q,&q,extent,token) < 1)
3304 if (LocaleCompare(token,
"pop") != 0)
3306 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3307 if (LocaleCompare(token,
"class") != 0)
3311 (void) GetNextToken(q,&q,extent,token);
3314 if (LocaleCompare(
"clip-path",token) == 0)
3316 (void) GetNextToken(q,&q,extent,token);
3317 for (p=q; *q !=
'\0'; )
3319 if (GetNextToken(q,&q,extent,token) < 1)
3321 if (LocaleCompare(token,
"pop") != 0)
3323 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3324 if (LocaleCompare(token,
"clip-path") != 0)
3328 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3333 (void) GetNextToken(q,&q,extent,token);
3336 if (LocaleCompare(
"defs",token) == 0)
3339 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3343 if (LocaleCompare(
"gradient",token) == 0)
3346 key[2*MaxTextExtent],
3347 name[MaxTextExtent],
3348 type[MaxTextExtent];
3353 (void) GetNextToken(q,&q,extent,token);
3354 (void) CopyMagickString(name,token,MaxTextExtent);
3355 (void) GetNextToken(q,&q,extent,token);
3356 (void) CopyMagickString(type,token,MaxTextExtent);
3357 (void) GetNextToken(q,&q,extent,token);
3358 segment.x1=GetDrawValue(token,&next_token);
3359 if (token == next_token)
3360 ThrowPointExpectedException(image,token);
3361 (void) GetNextToken(q,&q,extent,token);
3363 (void) GetNextToken(q,&q,extent,token);
3364 segment.y1=GetDrawValue(token,&next_token);
3365 if (token == next_token)
3366 ThrowPointExpectedException(image,token);
3367 (void) GetNextToken(q,&q,extent,token);
3369 (void) GetNextToken(q,&q,extent,token);
3370 segment.x2=GetDrawValue(token,&next_token);
3371 if (token == next_token)
3372 ThrowPointExpectedException(image,token);
3373 (void) GetNextToken(q,&q,extent,token);
3375 (void) GetNextToken(q,&q,extent,token);
3376 segment.y2=GetDrawValue(token,&next_token);
3377 if (token == next_token)
3378 ThrowPointExpectedException(image,token);
3379 if (LocaleCompare(type,
"radial") == 0)
3381 (void) GetNextToken(q,&q,extent,token);
3383 (void) GetNextToken(q,&q,extent,token);
3385 for (p=q; *q !=
'\0'; )
3387 if (GetNextToken(q,&q,extent,token) < 1)
3389 if (LocaleCompare(token,
"pop") != 0)
3391 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3392 if (LocaleCompare(token,
"gradient") != 0)
3396 if ((q == (
char *) NULL) || (*q ==
'\0') ||
3397 (p == (
char *) NULL) || ((q-4) < p))
3402 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3403 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
3404 graphic_context[n]->affine.ry*segment.y1+
3405 graphic_context[n]->affine.tx;
3406 bounds.y1=graphic_context[n]->affine.rx*segment.x1+
3407 graphic_context[n]->affine.sy*segment.y1+
3408 graphic_context[n]->affine.ty;
3409 bounds.x2=graphic_context[n]->affine.sx*segment.x2+
3410 graphic_context[n]->affine.ry*segment.y2+
3411 graphic_context[n]->affine.tx;
3412 bounds.y2=graphic_context[n]->affine.rx*segment.x2+
3413 graphic_context[n]->affine.sy*segment.y2+
3414 graphic_context[n]->affine.ty;
3415 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3416 (void) SetImageArtifact(image,key,token);
3417 (void) FormatLocaleString(key,MaxTextExtent,
"%s-type",name);
3418 (void) SetImageArtifact(image,key,type);
3419 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3420 (void) FormatLocaleString(geometry,MaxTextExtent,
3421 "%gx%g%+.15g%+.15g",
3422 MagickMax(fabs(bounds.x2-bounds.x1+1.0),1.0),
3423 MagickMax(fabs(bounds.y2-bounds.y1+1.0),1.0),
3424 bounds.x1,bounds.y1);
3425 (void) SetImageArtifact(image,key,geometry);
3426 (void) GetNextToken(q,&q,extent,token);
3429 if (LocaleCompare(
"graphic-context",token) == 0)
3432 graphic_context=(
DrawInfo **) ResizeQuantumMemory(
3433 graphic_context,(
size_t) (n+1),
sizeof(*graphic_context));
3434 if (graphic_context == (
DrawInfo **) NULL)
3436 (void) ThrowMagickException(&image->exception,
3437 GetMagickModule(),ResourceLimitError,
3438 "MemoryAllocationFailed",
"`%s'",image->filename);
3441 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,
3442 graphic_context[n-1]);
3445 (void) GetNextToken(q,&q,extent,token);
3446 (void) CloneString(&graphic_context[n]->
id,token);
3450 if (LocaleCompare(
"mask",token) == 0)
3452 (void) GetNextToken(q,&q,extent,token);
3455 if (LocaleCompare(
"pattern",token) == 0)
3460 (void) GetNextToken(q,&q,extent,token);
3461 (void) CopyMagickString(name,token,MaxTextExtent);
3462 (void) GetNextToken(q,&q,extent,token);
3463 bounds.x=CastDoubleToLong(ceil(GetDrawValue(token,
3465 if (token == next_token)
3466 ThrowPointExpectedException(image,token);
3467 (void) GetNextToken(q,&q,extent,token);
3469 (void) GetNextToken(q,&q,extent,token);
3470 bounds.y=CastDoubleToLong(ceil(GetDrawValue(token,
3472 if (token == next_token)
3473 ThrowPointExpectedException(image,token);
3474 (void) GetNextToken(q,&q,extent,token);
3476 (void) GetNextToken(q,&q,extent,token);
3477 bounds.width=(size_t) floor(GetDrawValue(token,&next_token)+
3479 if (token == next_token)
3480 ThrowPointExpectedException(image,token);
3481 (void) GetNextToken(q,&q,extent,token);
3483 (void) GetNextToken(q,&q,extent,token);
3484 bounds.height=(size_t) floor(GetDrawValue(token,&next_token)+
3486 if (token == next_token)
3487 ThrowPointExpectedException(image,token);
3488 for (p=q; *q !=
'\0'; )
3490 if (GetNextToken(q,&q,extent,token) < 1)
3492 if (LocaleCompare(token,
"pop") != 0)
3494 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3495 if (LocaleCompare(token,
"pattern") != 0)
3499 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3504 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3505 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3506 (void) SetImageArtifact(image,key,token);
3507 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3508 (void) FormatLocaleString(geometry,MaxTextExtent,
3509 "%.20gx%.20g%+.20g%+.20g",(
double) bounds.width,(double)
3510 bounds.height,(
double) bounds.x,(double) bounds.y);
3511 (void) SetImageArtifact(image,key,geometry);
3512 (void) GetNextToken(q,&q,extent,token);
3515 if (LocaleCompare(
"symbol",token) == 0)
3518 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3531 if (LocaleCompare(
"rectangle",keyword) == 0)
3533 primitive_type=RectanglePrimitive;
3536 if (LocaleCompare(
"rotate",keyword) == 0)
3538 (void) GetNextToken(q,&q,extent,token);
3539 angle=GetDrawValue(token,&next_token);
3540 if (token == next_token)
3541 ThrowPointExpectedException(image,token);
3542 affine.sx=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3543 affine.rx=sin(DegreesToRadians(fmod((
double) angle,360.0)));
3544 affine.ry=(-sin(DegreesToRadians(fmod((
double) angle,360.0))));
3545 affine.sy=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3548 if (LocaleCompare(
"roundRectangle",keyword) == 0)
3550 primitive_type=RoundRectanglePrimitive;
3559 if (LocaleCompare(
"scale",keyword) == 0)
3561 (void) GetNextToken(q,&q,extent,token);
3562 affine.sx=GetDrawValue(token,&next_token);
3563 if (token == next_token)
3564 ThrowPointExpectedException(image,token);
3565 (void) GetNextToken(q,&q,extent,token);
3567 (void) GetNextToken(q,&q,extent,token);
3568 affine.sy=GetDrawValue(token,&next_token);
3569 if (token == next_token)
3570 ThrowPointExpectedException(image,token);
3573 if (LocaleCompare(
"skewX",keyword) == 0)
3575 (void) GetNextToken(q,&q,extent,token);
3576 angle=GetDrawValue(token,&next_token);
3577 if (token == next_token)
3578 ThrowPointExpectedException(image,token);
3579 affine.ry=sin(DegreesToRadians(angle));
3582 if (LocaleCompare(
"skewY",keyword) == 0)
3584 (void) GetNextToken(q,&q,extent,token);
3585 angle=GetDrawValue(token,&next_token);
3586 if (token == next_token)
3587 ThrowPointExpectedException(image,token);
3588 affine.rx=(-tan(DegreesToRadians(angle)/2.0));
3591 if (LocaleCompare(
"stop-color",keyword) == 0)
3599 (void) GetNextToken(q,&q,extent,token);
3600 status&=QueryColorDatabase(token,&stop_color,&image->exception);
3601 type=LinearGradient;
3602 if (draw_info->gradient.type == RadialGradient)
3603 type=RadialGradient;
3604 (void) GradientImage(image,type,PadSpread,&start_color,&stop_color);
3605 start_color=stop_color;
3606 (void) GetNextToken(q,&q,extent,token);
3609 if (LocaleCompare(
"stroke",keyword) == 0)
3614 (void) GetNextToken(q,&q,extent,token);
3615 if (graphic_context[n]->clip_path != MagickFalse)
3617 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
3618 if (mvg_class != (
const char *) NULL)
3620 (void) DrawPatternPath(image,draw_info,mvg_class,
3621 &graphic_context[n]->stroke_pattern);
3624 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
3625 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
3627 (void) DrawPatternPath(image,draw_info,token,
3628 &graphic_context[n]->stroke_pattern);
3631 status&=QueryColorDatabase(token,&graphic_context[n]->stroke,
3633 if (graphic_context[n]->stroke_opacity != OpaqueOpacity)
3634 graphic_context[n]->stroke.opacity=ClampToQuantum(
3635 graphic_context[n]->stroke_opacity);
3638 if (LocaleCompare(
"stroke-antialias",keyword) == 0)
3640 (void) GetNextToken(q,&q,extent,token);
3641 graphic_context[n]->stroke_antialias=StringToLong(token) != 0 ?
3642 MagickTrue : MagickFalse;
3645 if (LocaleCompare(
"stroke-dasharray",keyword) == 0)
3647 if (graphic_context[n]->dash_pattern != (
double *) NULL)
3648 graphic_context[n]->dash_pattern=(
double *)
3649 RelinquishMagickMemory(graphic_context[n]->dash_pattern);
3650 if (IsPoint(q) != MagickFalse)
3656 (void) GetNextToken(p,&p,extent,token);
3658 (void) GetNextToken(p,&p,extent,token);
3659 for (x=0; IsPoint(token) != MagickFalse; x++)
3661 (void) GetNextToken(p,&p,extent,token);
3663 (void) GetNextToken(p,&p,extent,token);
3665 graphic_context[n]->dash_pattern=(
double *)
3666 AcquireQuantumMemory((
size_t) (2*x+2),
3667 sizeof(*graphic_context[n]->dash_pattern));
3668 if (graphic_context[n]->dash_pattern == (
double *) NULL)
3670 (void) ThrowMagickException(&image->exception,
3671 GetMagickModule(),ResourceLimitError,
3672 "MemoryAllocationFailed",
"`%s'",image->filename);
3676 (void) memset(graphic_context[n]->dash_pattern,0,(
size_t)
3677 (2*x+2)*
sizeof(*graphic_context[n]->dash_pattern));
3678 for (j=0; j < x; j++)
3680 (void) GetNextToken(q,&q,extent,token);
3682 (void) GetNextToken(q,&q,extent,token);
3683 graphic_context[n]->dash_pattern[j]=GetDrawValue(token,
3685 if (token == next_token)
3686 ThrowPointExpectedException(image,token);
3687 if (graphic_context[n]->dash_pattern[j] <= 0.0)
3690 if ((x & 0x01) != 0)
3691 for ( ; j < (2*x); j++)
3692 graphic_context[n]->dash_pattern[j]=
3693 graphic_context[n]->dash_pattern[j-x];
3694 graphic_context[n]->dash_pattern[j]=0.0;
3697 (void) GetNextToken(q,&q,extent,token);
3700 if (LocaleCompare(
"stroke-dashoffset",keyword) == 0)
3702 (void) GetNextToken(q,&q,extent,token);
3703 graphic_context[n]->dash_offset=GetDrawValue(token,&next_token);
3704 if (token == next_token)
3705 ThrowPointExpectedException(image,token);
3708 if (LocaleCompare(
"stroke-linecap",keyword) == 0)
3713 (void) GetNextToken(q,&q,extent,token);
3714 linecap=ParseCommandOption(MagickLineCapOptions,MagickFalse,token);
3720 graphic_context[n]->linecap=(LineCap) linecap;
3723 if (LocaleCompare(
"stroke-linejoin",keyword) == 0)
3728 (void) GetNextToken(q,&q,extent,token);
3729 linejoin=ParseCommandOption(MagickLineJoinOptions,MagickFalse,
3736 graphic_context[n]->linejoin=(LineJoin) linejoin;
3739 if (LocaleCompare(
"stroke-miterlimit",keyword) == 0)
3741 (void) GetNextToken(q,&q,extent,token);
3742 graphic_context[n]->miterlimit=StringToUnsignedLong(token);
3745 if (LocaleCompare(
"stroke-opacity",keyword) == 0)
3750 (void) GetNextToken(q,&q,extent,token);
3751 if (graphic_context[n]->clip_path != MagickFalse)
3753 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3754 opacity=MagickMin(MagickMax(factor*
3755 GetDrawValue(token,&next_token),0.0),1.0);
3756 if (token == next_token)
3757 ThrowPointExpectedException(image,token);
3758 if (graphic_context[n]->compliance == SVGCompliance)
3759 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3761 graphic_context[n]->stroke_opacity=(QuantumRange-
3762 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3763 if (graphic_context[n]->stroke.opacity != TransparentOpacity)
3764 graphic_context[n]->stroke.opacity=(Quantum)
3765 graphic_context[n]->stroke_opacity;
3767 graphic_context[n]->stroke.opacity=ClampToQuantum(QuantumRange*
3771 if (LocaleCompare(
"stroke-width",keyword) == 0)
3773 (void) GetNextToken(q,&q,extent,token);
3774 if (graphic_context[n]->clip_path != MagickFalse)
3776 graphic_context[n]->stroke_width=GetDrawValue(token,&next_token);
3777 if (token == next_token)
3778 ThrowPointExpectedException(image,token);
3787 if (LocaleCompare(
"text",keyword) == 0)
3789 primitive_type=TextPrimitive;
3793 if (LocaleCompare(
"text-align",keyword) == 0)
3798 (void) GetNextToken(q,&q,extent,token);
3799 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3805 graphic_context[n]->align=(AlignType) align;
3808 if (LocaleCompare(
"text-anchor",keyword) == 0)
3813 (void) GetNextToken(q,&q,extent,token);
3814 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3820 graphic_context[n]->align=(AlignType) align;
3823 if (LocaleCompare(
"text-antialias",keyword) == 0)
3825 (void) GetNextToken(q,&q,extent,token);
3826 graphic_context[n]->text_antialias=StringToLong(token) != 0 ?
3827 MagickTrue : MagickFalse;
3830 if (LocaleCompare(
"text-undercolor",keyword) == 0)
3832 (void) GetNextToken(q,&q,extent,token);
3833 status&=QueryColorDatabase(token,&graphic_context[n]->undercolor,
3837 if (LocaleCompare(
"translate",keyword) == 0)
3839 (void) GetNextToken(q,&q,extent,token);
3840 affine.tx=GetDrawValue(token,&next_token);
3841 if (token == next_token)
3842 ThrowPointExpectedException(image,token);
3843 (void) GetNextToken(q,&q,extent,token);
3845 (void) GetNextToken(q,&q,extent,token);
3846 affine.ty=GetDrawValue(token,&next_token);
3847 if (token == next_token)
3848 ThrowPointExpectedException(image,token);
3857 if (LocaleCompare(
"use",keyword) == 0)
3865 (void) GetNextToken(q,&q,extent,token);
3866 use=(
const char *) GetValueFromSplayTree(macros,token);
3867 if (use != (
const char *) NULL)
3869 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3870 (void) CloneString(&clone_info->primitive,use);
3871 status=RenderMVGContent(image,clone_info,depth+1);
3872 clone_info=DestroyDrawInfo(clone_info);
3882 if (LocaleCompare(
"viewbox",keyword) == 0)
3884 (void) GetNextToken(q,&q,extent,token);
3885 graphic_context[n]->viewbox.x=CastDoubleToLong(ceil(
3886 GetDrawValue(token,&next_token)-0.5));
3887 if (token == next_token)
3888 ThrowPointExpectedException(image,token);
3889 (void) GetNextToken(q,&q,extent,token);
3891 (void) GetNextToken(q,&q,extent,token);
3892 graphic_context[n]->viewbox.y=CastDoubleToLong(ceil(
3893 GetDrawValue(token,&next_token)-0.5));
3894 if (token == next_token)
3895 ThrowPointExpectedException(image,token);
3896 (void) GetNextToken(q,&q,extent,token);
3898 (void) GetNextToken(q,&q,extent,token);
3899 graphic_context[n]->viewbox.width=(size_t) floor(GetDrawValue(
3900 token,&next_token)+0.5);
3901 if (token == next_token)
3902 ThrowPointExpectedException(image,token);
3903 (void) GetNextToken(q,&q,extent,token);
3905 (void) GetNextToken(q,&q,extent,token);
3906 graphic_context[n]->viewbox.height=(size_t) floor(GetDrawValue(
3907 token,&next_token)+0.5);
3908 if (token == next_token)
3909 ThrowPointExpectedException(image,token);
3918 if (LocaleCompare(
"word-spacing",keyword) == 0)
3920 (void) GetNextToken(q,&q,extent,token);
3921 graphic_context[n]->interword_spacing=GetDrawValue(token,
3923 if (token == next_token)
3924 ThrowPointExpectedException(image,token);
3936 if (status == MagickFalse)
3938 if ((fabs(affine.sx-1.0) >= MagickEpsilon) ||
3939 (fabs(affine.rx) >= MagickEpsilon) || (fabs(affine.ry) >= MagickEpsilon) ||
3940 (fabs(affine.sy-1.0) >= MagickEpsilon) ||
3941 (fabs(affine.tx) >= MagickEpsilon) || (fabs(affine.ty) >= MagickEpsilon))
3943 graphic_context[n]->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
3944 graphic_context[n]->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
3945 graphic_context[n]->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
3946 graphic_context[n]->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
3947 graphic_context[n]->affine.tx=current.sx*affine.tx+current.ry*affine.ty+
3949 graphic_context[n]->affine.ty=current.rx*affine.tx+current.sy*affine.ty+
3952 if (primitive_type == UndefinedPrimitive)
3954 if ((draw_info->debug != MagickFalse) && (q > p))
3955 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int)
3962 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
3963 if (primitive_info[i].text != (
char *) NULL)
3964 primitive_info[i].text=DestroyString(primitive_info[i].text);
3968 primitive_info[0].point.x=0.0;
3969 primitive_info[0].point.y=0.0;
3970 primitive_info[0].coordinates=0;
3971 primitive_info[0].method=FloodfillMethod;
3972 primitive_info[0].closed_subpath=MagickFalse;
3973 for (x=0; *q !=
'\0'; x++)
3978 if (IsPoint(q) == MagickFalse)
3980 (void) GetNextToken(q,&q,extent,token);
3981 point.x=GetDrawValue(token,&next_token);
3982 if (token == next_token)
3983 ThrowPointExpectedException(image,token);
3984 (void) GetNextToken(q,&q,extent,token);
3986 (void) GetNextToken(q,&q,extent,token);
3987 point.y=GetDrawValue(token,&next_token);
3988 if (token == next_token)
3989 ThrowPointExpectedException(image,token);
3990 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3992 (void) GetNextToken(q,&q,extent,token);
3993 primitive_info[i].primitive=primitive_type;
3994 primitive_info[i].point=point;
3995 primitive_info[i].coordinates=0;
3996 primitive_info[i].method=FloodfillMethod;
3997 primitive_info[i].closed_subpath=MagickFalse;
4000 if (i < (ssize_t) number_points)
4002 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4003 primitive_info=(*mvg_info.primitive_info);
4005 if (status == MagickFalse)
4007 if (primitive_info[j].text != (
char *) NULL)
4008 primitive_info[j].text=DestroyString(primitive_info[j].text);
4009 primitive_info[j].primitive=primitive_type;
4010 primitive_info[j].coordinates=(size_t) x;
4011 primitive_info[j].method=FloodfillMethod;
4012 primitive_info[j].closed_subpath=MagickFalse;
4016 bounds.x1=primitive_info[j].point.x;
4017 bounds.y1=primitive_info[j].point.y;
4018 bounds.x2=primitive_info[j].point.x;
4019 bounds.y2=primitive_info[j].point.y;
4020 for (k=1; k < (ssize_t) primitive_info[j].coordinates; k++)
4022 point=primitive_info[j+k].point;
4023 if (point.x < bounds.x1)
4025 if (point.y < bounds.y1)
4027 if (point.x > bounds.x2)
4029 if (point.y > bounds.y2)
4035 coordinates=(double) primitive_info[j].coordinates;
4036 switch (primitive_type)
4038 case RectanglePrimitive:
4043 case RoundRectanglePrimitive:
4050 alpha=bounds.x2-bounds.x1;
4051 beta=bounds.y2-bounds.y1;
4052 radius=hypot(alpha,beta);
4054 coordinates+=2.0*((size_t) ceil((
double) MagickPI*radius))+6.0*
4055 BezierQuantum+360.0;
4058 case BezierPrimitive:
4060 coordinates=(BezierQuantum*(double) primitive_info[j].coordinates);
4069 (void) GetNextToken(q,&q,extent,token);
4072 for (s=token; *s !=
'\0'; s=t)
4077 value=GetDrawValue(s,&t);
4086 for (s=token; *s !=
'\0'; s++)
4087 if (strspn(s,
"AaCcQqSsTt") != 0)
4088 coordinates+=(20.0*BezierQuantum)+360.0;
4094 if (status == MagickFalse)
4096 if (((
size_t) (i+coordinates)) >= number_points)
4101 number_points+=coordinates+1;
4102 if (number_points < (
size_t) coordinates)
4104 (void) ThrowMagickException(&image->exception,GetMagickModule(),
4105 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
4110 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4111 primitive_info=(*mvg_info.primitive_info);
4113 status&=CheckPrimitiveExtent(&mvg_info,PrimitiveExtentPad);
4114 primitive_info=(*mvg_info.primitive_info);
4115 if (status == MagickFalse)
4118 switch (primitive_type)
4120 case PointPrimitive:
4123 if (primitive_info[j].coordinates != 1)
4128 status&=TracePoint(primitive_info+j,primitive_info[j].point);
4129 primitive_info=(*mvg_info.primitive_info);
4130 i=(ssize_t) (j+primitive_info[j].coordinates);
4135 if (primitive_info[j].coordinates != 2)
4140 status&=TraceLine(primitive_info+j,primitive_info[j].point,
4141 primitive_info[j+1].point);
4142 primitive_info=(*mvg_info.primitive_info);
4143 i=(ssize_t) (j+primitive_info[j].coordinates);
4146 case RectanglePrimitive:
4148 if (primitive_info[j].coordinates != 2)
4153 status&=TraceRectangle(primitive_info+j,primitive_info[j].point,
4154 primitive_info[j+1].point);
4155 primitive_info=(*mvg_info.primitive_info);
4156 i=(ssize_t) (j+primitive_info[j].coordinates);
4159 case RoundRectanglePrimitive:
4161 if (primitive_info[j].coordinates != 3)
4166 if ((primitive_info[j+2].point.x < 0.0) ||
4167 (primitive_info[j+2].point.y < 0.0))
4172 if ((primitive_info[j+1].point.x-primitive_info[j].point.x) < 0.0)
4177 if ((primitive_info[j+1].point.y-primitive_info[j].point.y) < 0.0)
4182 status&=TraceRoundRectangle(&mvg_info,primitive_info[j].point,
4183 primitive_info[j+1].point,primitive_info[j+2].point);
4184 primitive_info=(*mvg_info.primitive_info);
4185 i=(ssize_t) (j+primitive_info[j].coordinates);
4190 if (primitive_info[j].coordinates != 3)
4195 status&=TraceArc(&mvg_info,primitive_info[j].point,
4196 primitive_info[j+1].point,primitive_info[j+2].point);
4197 primitive_info=(*mvg_info.primitive_info);
4198 i=(ssize_t) (j+primitive_info[j].coordinates);
4201 case EllipsePrimitive:
4203 if (primitive_info[j].coordinates != 3)
4208 if ((primitive_info[j+1].point.x < 0.0) ||
4209 (primitive_info[j+1].point.y < 0.0))
4214 status&=TraceEllipse(&mvg_info,primitive_info[j].point,
4215 primitive_info[j+1].point,primitive_info[j+2].point);
4216 primitive_info=(*mvg_info.primitive_info);
4217 i=(ssize_t) (j+primitive_info[j].coordinates);
4220 case CirclePrimitive:
4222 if (primitive_info[j].coordinates != 2)
4227 status&=TraceCircle(&mvg_info,primitive_info[j].point,
4228 primitive_info[j+1].point);
4229 primitive_info=(*mvg_info.primitive_info);
4230 i=(ssize_t) (j+primitive_info[j].coordinates);
4233 case PolylinePrimitive:
4235 if (primitive_info[j].coordinates < 1)
4242 case PolygonPrimitive:
4244 if (primitive_info[j].coordinates < 3)
4249 primitive_info[i]=primitive_info[j];
4250 primitive_info[i].coordinates=0;
4251 primitive_info[j].coordinates++;
4252 primitive_info[j].closed_subpath=MagickTrue;
4256 case BezierPrimitive:
4258 if (primitive_info[j].coordinates < 3)
4263 status&=TraceBezier(&mvg_info,primitive_info[j].coordinates);
4264 primitive_info=(*mvg_info.primitive_info);
4265 i=(ssize_t) (j+primitive_info[j].coordinates);
4270 coordinates=(double) TracePath(image,&mvg_info,token);
4271 primitive_info=(*mvg_info.primitive_info);
4272 if (coordinates < 0.0)
4277 i=(ssize_t) (j+coordinates);
4280 case ColorPrimitive:
4281 case MattePrimitive:
4286 if (primitive_info[j].coordinates != 1)
4291 (void) GetNextToken(q,&q,extent,token);
4292 method=ParseCommandOption(MagickMethodOptions,MagickFalse,token);
4298 primitive_info[j].method=(PaintMethod) method;
4304 geometry[MagickPathExtent];
4306 if (primitive_info[j].coordinates != 1)
4312 (void) GetNextToken(q,&q,extent,token);
4313 (void) CloneString(&primitive_info[j].text,token);
4317 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
4318 if ((fabs(mvg_info.point.x-primitive_info->point.x) < MagickEpsilon) &&
4319 (fabs(mvg_info.point.y-primitive_info->point.y) < MagickEpsilon))
4321 mvg_info.point=primitive_info->point;
4322 primitive_info->point.x+=cursor;
4326 mvg_info.point=primitive_info->point;
4329 (void) FormatLocaleString(geometry,MagickPathExtent,
"%+f%+f",
4330 primitive_info->point.x,primitive_info->point.y);
4331 clone_info->render=MagickFalse;
4332 clone_info->text=AcquireString(token);
4333 status&=GetTypeMetrics(image,clone_info,&metrics);
4334 clone_info=DestroyDrawInfo(clone_info);
4335 cursor+=metrics.width;
4336 if (graphic_context[n]->compliance != SVGCompliance)
4340 case ImagePrimitive:
4342 if (primitive_info[j].coordinates != 2)
4347 (void) GetNextToken(q,&q,extent,token);
4348 (void) CloneString(&primitive_info[j].text,token);
4355 primitive_info[i].primitive=UndefinedPrimitive;
4356 if ((draw_info->debug != MagickFalse) && (q > p))
4357 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int) (q-p),p);
4361 status&=CheckPrimitiveExtent(&mvg_info,ExpandAffine(
4362 &graphic_context[n]->affine));
4363 primitive_info=(*mvg_info.primitive_info);
4366 status&=CheckPrimitiveExtent(&mvg_info,(
double)
4367 graphic_context[n]->stroke_width);
4368 primitive_info=(*mvg_info.primitive_info);
4376 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4378 point=primitive_info[i].point;
4379 primitive_info[i].point.x=graphic_context[n]->affine.sx*point.x+
4380 graphic_context[n]->affine.ry*point.y+graphic_context[n]->affine.tx;
4381 primitive_info[i].point.y=graphic_context[n]->affine.rx*point.x+
4382 graphic_context[n]->affine.sy*point.y+graphic_context[n]->affine.ty;
4383 point=primitive_info[i].point;
4384 if (point.x < graphic_context[n]->bounds.x1)
4385 graphic_context[n]->bounds.x1=point.x;
4386 if (point.y < graphic_context[n]->bounds.y1)
4387 graphic_context[n]->bounds.y1=point.y;
4388 if (point.x > graphic_context[n]->bounds.x2)
4389 graphic_context[n]->bounds.x2=point.x;
4390 if (point.y > graphic_context[n]->bounds.y2)
4391 graphic_context[n]->bounds.y2=point.y;
4392 if (primitive_info[i].primitive == ImagePrimitive)
4394 if (i >= (ssize_t) number_points)
4395 ThrowFatalException(ResourceLimitFatalError,
"MemoryAllocationFailed");
4397 if (graphic_context[n]->render != MagickFalse)
4399 if ((n != 0) && (graphic_context[n]->compliance != SVGCompliance) &&
4400 (graphic_context[n]->clip_mask != (
char *) NULL) &&
4401 (LocaleCompare(graphic_context[n]->clip_mask,
4402 graphic_context[n-1]->clip_mask) != 0))
4407 clip_path=(
const char *) GetValueFromSplayTree(macros,
4408 graphic_context[n]->clip_mask);
4409 if (clip_path != (
const char *) NULL)
4410 (
void) SetImageArtifact(image,graphic_context[n]->clip_mask,
4412 status&=DrawClipPath(image,graphic_context[n],
4413 graphic_context[n]->clip_mask);
4415 status&=DrawPrimitive(image,graphic_context[n],primitive_info);
4417 proceed=SetImageProgress(image,RenderImageTag,q-primitive,(MagickSizeType)
4419 if (proceed == MagickFalse)
4424 if (draw_info->debug != MagickFalse)
4425 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end draw-image");
4429 macros=DestroySplayTree(macros);
4430 token=DestroyString(token);
4433 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4434 if (primitive_info[i].text != (
char *) NULL)
4435 primitive_info[i].text=DestroyString(primitive_info[i].text);
4436 primitive_info=(
PrimitiveInfo *) RelinquishMagickMemory(primitive_info);
4438 primitive=DestroyString(primitive);
4439 for ( ; n >= 0; n--)
4440 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
4441 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
4442 if (status == MagickFalse)
4443 ThrowBinaryImageException(DrawError,
4444 "NonconformingDrawingPrimitiveDefinition",keyword);
4445 return(status != 0 ? MagickTrue : MagickFalse);
4448 MagickExport MagickBooleanType DrawImage(
Image *image,
const DrawInfo *draw_info)
4450 return(RenderMVGContent(image,draw_info,0));
4482 MagickExport MagickBooleanType DrawPatternPath(
Image *image,
4486 property[MaxTextExtent];
4502 assert(image != (
Image *) NULL);
4503 assert(image->signature == MagickCoreSignature);
4504 assert(draw_info != (
const DrawInfo *) NULL);
4505 if (IsEventLogging() != MagickFalse)
4506 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4507 assert(name != (
const char *) NULL);
4508 (void) FormatLocaleString(property,MaxTextExtent,
"%s",name);
4509 path=GetImageArtifact(image,property);
4510 if (path == (
const char *) NULL)
4511 return(MagickFalse);
4512 (void) FormatLocaleString(property,MaxTextExtent,
"%s-geometry",name);
4513 geometry=GetImageArtifact(image,property);
4514 if (geometry == (
const char *) NULL)
4515 return(MagickFalse);
4516 if ((*pattern) != (
Image *) NULL)
4517 *pattern=DestroyImage(*pattern);
4518 image_info=AcquireImageInfo();
4519 image_info->size=AcquireString(geometry);
4520 *pattern=AcquireImage(image_info);
4521 image_info=DestroyImageInfo(image_info);
4522 (void) QueryColorDatabase(
"#00000000",&(*pattern)->background_color,
4524 (void) SetImageBackgroundColor(*pattern);
4525 if (draw_info->debug != MagickFalse)
4526 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
4527 "begin pattern-path %s %s",name,geometry);
4528 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
4529 if (clone_info->fill_pattern != (
Image *) NULL)
4530 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
4531 if (clone_info->stroke_pattern != (
Image *) NULL)
4532 clone_info->stroke_pattern=DestroyImage(clone_info->stroke_pattern);
4533 (void) FormatLocaleString(property,MaxTextExtent,
"%s-type",name);
4534 type=GetImageArtifact(image,property);
4535 if (type != (
const char *) NULL)
4536 clone_info->gradient.type=(GradientType) ParseCommandOption(
4537 MagickGradientOptions,MagickFalse,type);
4538 (void) CloneString(&clone_info->primitive,path);
4539 status=RenderMVGContent(*pattern,clone_info,0);
4540 clone_info=DestroyDrawInfo(clone_info);
4541 if (draw_info->debug != MagickFalse)
4542 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end pattern-path");
4580 for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
4582 polygon_info[i]=DestroyPolygonInfo(polygon_info[i]);
4583 polygon_info=(
PolygonInfo **) RelinquishMagickMemory(polygon_info);
4584 return(polygon_info);
4591 *magick_restrict path_info;
4599 number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
4600 polygon_info=(
PolygonInfo **) AcquireQuantumMemory(number_threads,
4601 sizeof(*polygon_info));
4604 (void) ThrowMagickException(exception,GetMagickModule(),
4605 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4608 (void) memset(polygon_info,0,number_threads*
sizeof(*polygon_info));
4609 path_info=ConvertPrimitiveToPath(draw_info,primitive_info,exception);
4610 if (path_info == (
PathInfo *) NULL)
4611 return(DestroyPolygonTLS(polygon_info));
4612 polygon_info[0]=ConvertPathToPolygon(path_info,exception);
4615 (void) ThrowMagickException(exception,GetMagickModule(),
4616 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4617 return(DestroyPolygonTLS(polygon_info));
4619 path_info=(
PathInfo *) RelinquishMagickMemory(path_info);
4620 return(polygon_info);
4623 static MagickBooleanType AcquirePolygonEdgesTLS(
PolygonInfo **polygon_info,
4629 for (i=1; i < (ssize_t) number_threads; i++)
4637 polygon_info[i]=(
PolygonInfo *) AcquireMagickMemory(
4638 sizeof(*polygon_info[i]));
4641 (void) ThrowMagickException(exception,GetMagickModule(),
4642 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4643 return(MagickFalse);
4645 polygon_info[i]->number_edges=0;
4646 edge_info=polygon_info[0]->edges;
4647 polygon_info[i]->edges=(
EdgeInfo *) AcquireQuantumMemory(
4648 polygon_info[0]->number_edges,
sizeof(*edge_info));
4649 if (polygon_info[i]->edges == (
EdgeInfo *) NULL)
4651 (void) ThrowMagickException(exception,GetMagickModule(),
4652 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4653 return(MagickFalse);
4655 (void) memcpy(polygon_info[i]->edges,edge_info,
4656 polygon_info[0]->number_edges*
sizeof(*edge_info));
4657 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4658 polygon_info[i]->edges[j].points=(
PointInfo *) NULL;
4659 polygon_info[i]->number_edges=polygon_info[0]->number_edges;
4660 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4662 edge_info=polygon_info[0]->edges+j;
4663 polygon_info[i]->edges[j].points=(
PointInfo *) AcquireQuantumMemory(
4664 edge_info->number_points,
sizeof(*edge_info));
4665 if (polygon_info[i]->edges[j].points == (
PointInfo *) NULL)
4667 (void) ThrowMagickException(exception,GetMagickModule(),
4668 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4669 return(MagickFalse);
4671 (void) memcpy(polygon_info[i]->edges[j].points,edge_info->points,
4672 edge_info->number_points*
sizeof(*edge_info->points));
4678 static size_t DestroyEdge(
PolygonInfo *polygon_info,
const ssize_t edge)
4680 assert(edge < (ssize_t) polygon_info->number_edges);
4681 polygon_info->edges[edge].points=(
PointInfo *) RelinquishMagickMemory(
4682 polygon_info->edges[edge].points);
4683 polygon_info->number_edges--;
4684 if (edge < (ssize_t) polygon_info->number_edges)
4685 (
void) memmove(polygon_info->edges+edge,polygon_info->edges+edge+1,
4686 (
size_t) (polygon_info->number_edges-edge)*
sizeof(*polygon_info->edges));
4687 return(polygon_info->number_edges);
4690 static double GetOpacityPixel(
PolygonInfo *polygon_info,
const double mid,
4691 const MagickBooleanType fill,
const FillRule fill_rule,
const ssize_t x,
4692 const ssize_t y,
double *stroke_opacity)
4719 *stroke_opacity=0.0;
4720 subpath_opacity=0.0;
4721 p=polygon_info->edges;
4722 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4724 if ((
double) y <= (p->bounds.y1-mid-0.5))
4726 if ((
double) y > (p->bounds.y2+mid+0.5))
4729 (void) DestroyEdge(polygon_info,j--);
4732 if (((
double) x <= (p->bounds.x1-mid-0.5)) ||
4733 ((
double) x > (p->bounds.x2+mid+0.5)))
4735 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4736 for ( ; i < (ssize_t) p->number_points; i++)
4738 if ((
double) y <= (p->points[i-1].y-mid-0.5))
4740 if ((
double) y > (p->points[i].y+mid+0.5))
4742 if (p->scanline != (
double) y)
4744 p->scanline=(double) y;
4745 p->highwater=(size_t) i;
4751 delta.x=(q+1)->x-q->x;
4752 delta.y=(q+1)->y-q->y;
4753 beta=delta.x*(x-q->x)+delta.y*(y-q->y);
4756 delta.x=(double) x-q->x;
4757 delta.y=(
double) y-q->y;
4758 distance=delta.x*delta.x+delta.y*delta.y;
4762 alpha=delta.x*delta.x+delta.y*delta.y;
4765 delta.x=(double) x-(q+1)->x;
4766 delta.y=(double) y-(q+1)->y;
4767 distance=delta.x*delta.x+delta.y*delta.y;
4771 alpha=PerceptibleReciprocal(alpha);
4772 beta=delta.x*(y-q->y)-delta.y*(x-q->x);
4773 distance=alpha*beta*beta;
4780 if (p->ghostline == MagickFalse)
4783 if ((*stroke_opacity < 1.0) &&
4784 (distance <= ((alpha+0.25)*(alpha+0.25))))
4787 if (distance <= ((alpha+0.25)*(alpha+0.25)))
4788 *stroke_opacity=1.0;
4792 if (fabs(distance-1.0) >= MagickEpsilon)
4793 beta=sqrt((
double) distance);
4795 if (*stroke_opacity < ((alpha-0.25)*(alpha-0.25)))
4796 *stroke_opacity=(alpha-0.25)*(alpha-0.25);
4800 if ((fill == MagickFalse) || (distance > 1.0) || (subpath_opacity >= 1.0))
4802 if (distance <= 0.0)
4804 subpath_opacity=1.0;
4809 if (fabs(beta) < MagickEpsilon)
4812 if (fabs(distance-1.0) >= MagickEpsilon)
4813 beta=sqrt(distance);
4816 if (subpath_opacity < (alpha*alpha))
4817 subpath_opacity=alpha*alpha;
4823 if (fill == MagickFalse)
4825 if (subpath_opacity >= 1.0)
4831 p=polygon_info->edges;
4832 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4834 if ((
double) y <= p->bounds.y1)
4836 if (((
double) y > p->bounds.y2) || ((
double) x <= p->bounds.x1))
4838 if ((
double) x > p->bounds.x2)
4840 winding_number+=p->direction != 0 ? 1 : -1;
4843 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4844 for ( ; i < (ssize_t) (p->number_points-1); i++)
4845 if ((
double) y <= p->points[i].y)
4848 if ((((q+1)->x-q->x)*(y-q->y)) <= (((q+1)->y-q->y)*(x-q->x)))
4849 winding_number+=p->direction != 0 ? 1 : -1;
4851 if (fill_rule != NonZeroRule)
4853 if ((MagickAbsoluteValue(winding_number) & 0x01) != 0)
4857 if (MagickAbsoluteValue(winding_number) != 0)
4859 return(subpath_opacity);
4862 static MagickBooleanType DrawPolygonPrimitive(
Image *image,
4865 typedef struct _ExtentInfo
4894 **magick_restrict polygon_info;
4909 assert(image != (
Image *) NULL);
4910 assert(image->signature == MagickCoreSignature);
4911 assert(draw_info != (
DrawInfo *) NULL);
4912 assert(draw_info->signature == MagickCoreSignature);
4914 if (IsEventLogging() != MagickFalse)
4915 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4916 if (primitive_info->coordinates <= 1)
4921 polygon_info=AcquirePolygonTLS(draw_info,primitive_info,&image->exception);
4923 return(MagickFalse);
4924 if (draw_info->debug != MagickFalse)
4925 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-polygon");
4926 fill=(primitive_info->method == FillToBorderMethod) ||
4927 (primitive_info->method == FloodfillMethod) ? MagickTrue : MagickFalse;
4928 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
4929 bounds=polygon_info[0]->edges[0].bounds;
4930 artifact=GetImageArtifact(image,
"draw:render-bounding-rectangles");
4931 if (IsStringTrue(artifact) != MagickFalse)
4932 (void) DrawBoundingRectangles(image,draw_info,polygon_info[0]);
4933 for (i=1; i < (ssize_t) polygon_info[0]->number_edges; i++)
4935 p=polygon_info[0]->edges+i;
4936 if (p->bounds.x1 < bounds.x1)
4937 bounds.x1=p->bounds.x1;
4938 if (p->bounds.y1 < bounds.y1)
4939 bounds.y1=p->bounds.y1;
4940 if (p->bounds.x2 > bounds.x2)
4941 bounds.x2=p->bounds.x2;
4942 if (p->bounds.y2 > bounds.y2)
4943 bounds.y2=p->bounds.y2;
4945 bounds.x1-=(mid+1.0);
4946 bounds.y1-=(mid+1.0);
4947 bounds.x2+=(mid+1.0);
4948 bounds.y2+=(mid+1.0);
4949 if ((bounds.x1 >= (
double) image->columns) ||
4950 (bounds.y1 >= (
double) image->rows) ||
4951 (bounds.x2 <= 0.0) || (bounds.y2 <= 0.0))
4953 polygon_info=DestroyPolygonTLS(polygon_info);
4956 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double) image->columns-1.0 ?
4957 (
double) image->columns-1.0 : bounds.x1;
4958 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double) image->rows-1.0 ?
4959 (
double) image->rows-1.0 : bounds.y1;
4960 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double) image->columns-1.0 ?
4961 (
double) image->columns-1.0 : bounds.x2;
4962 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double) image->rows-1.0 ?
4963 (
double) image->rows-1.0 : bounds.y2;
4964 poly_extent.x1=CastDoubleToLong(ceil(bounds.x1-0.5));
4965 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
4966 poly_extent.x2=CastDoubleToLong(floor(bounds.x2+0.5));
4967 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
4968 number_threads=GetMagickNumberThreads(image,image,poly_extent.y2-
4969 poly_extent.y1+1,1);
4970 status=AcquirePolygonEdgesTLS(polygon_info,number_threads,&image->exception);
4971 if (status == MagickFalse)
4973 polygon_info=DestroyPolygonTLS(polygon_info);
4977 exception=(&image->exception);
4978 image_view=AcquireAuthenticCacheView(image,exception);
4979 if ((primitive_info->coordinates == 1) ||
4980 (polygon_info[0]->number_edges == 0))
4985 #if defined(MAGICKCORE_OPENMP_SUPPORT)
4986 #pragma omp parallel for schedule(static) shared(status) \
4987 num_threads(number_threads)
4989 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5000 if (status == MagickFalse)
5003 q=GetCacheViewAuthenticPixels(image_view,x,y,(
size_t) (poly_extent.x2-
5010 for ( ; x <= poly_extent.x2; x++)
5012 if ((x == CastDoubleToLong(ceil(primitive_info->point.x-0.5))) &&
5013 (y == CastDoubleToLong(ceil(primitive_info->point.y-0.5))))
5014 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,q);
5017 sync=SyncCacheViewAuthenticPixels(image_view,exception);
5018 if (sync == MagickFalse)
5021 image_view=DestroyCacheView(image_view);
5022 polygon_info=DestroyPolygonTLS(polygon_info);
5023 if (draw_info->debug != MagickFalse)
5024 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5025 " end draw-polygon");
5031 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
5032 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
5033 #if defined(MAGICKCORE_OPENMP_SUPPORT)
5034 #pragma omp parallel for schedule(static) shared(status) \
5035 num_threads(number_threads)
5037 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5040 id = GetOpenMPThreadId();
5052 if (status == MagickFalse)
5054 q=GetCacheViewAuthenticPixels(image_view,poly_extent.x1,y,(
size_t)
5055 (poly_extent.x2-poly_extent.x1+1),1,exception);
5061 for (x=poly_extent.x1; x <= poly_extent.x2; x++)
5070 fill_opacity=GetOpacityPixel(polygon_info[
id],mid,fill,
5071 draw_info->fill_rule,x,y,&stroke_opacity);
5072 if (draw_info->stroke_antialias == MagickFalse)
5074 fill_opacity=fill_opacity >= AntialiasThreshold ? 1.0 : 0.0;
5075 stroke_opacity=stroke_opacity >= AntialiasThreshold ? 1.0 : 0.0;
5077 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5079 fill_opacity=(double) (QuantumRange-fill_opacity*(QuantumRange-
5080 fill_color.opacity));
5081 MagickCompositeOver(&fill_color,(MagickRealType) fill_opacity,q,
5082 (MagickRealType) q->opacity,q);
5083 (void) GetStrokeColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5085 stroke_opacity=(double) (QuantumRange-stroke_opacity*(QuantumRange-
5086 stroke_color.opacity));
5087 MagickCompositeOver(&stroke_color,(MagickRealType) stroke_opacity,q,
5088 (MagickRealType) q->opacity,q);
5091 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5094 image_view=DestroyCacheView(image_view);
5095 polygon_info=DestroyPolygonTLS(polygon_info);
5096 if (draw_info->debug != MagickFalse)
5097 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-polygon");
5128 static void LogPrimitiveInfo(
const PrimitiveInfo *primitive_info)
5154 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5155 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5156 switch (primitive_info->primitive)
5158 case PointPrimitive:
5160 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5161 "PointPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5162 methods[primitive_info->method]);
5165 case ColorPrimitive:
5167 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5168 "ColorPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5169 methods[primitive_info->method]);
5172 case MattePrimitive:
5174 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5175 "MattePrimitive %.20g,%.20g %s",(double) x,(
double) y,
5176 methods[primitive_info->method]);
5181 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5182 "TextPrimitive %.20g,%.20g",(double) x,(
double) y);
5185 case ImagePrimitive:
5187 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5188 "ImagePrimitive %.20g,%.20g",(double) x,(
double) y);
5195 p=primitive_info[0].point;
5198 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
5200 point=primitive_info[i].point;
5201 if (coordinates <= 0)
5203 coordinates=(ssize_t) primitive_info[i].coordinates;
5204 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5205 " begin open (%.20g)",(double) coordinates);
5208 point=primitive_info[i].point;
5209 if ((fabs(q.x-point.x) >= MagickEpsilon) ||
5210 (fabs(q.y-point.y) >= MagickEpsilon))
5211 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5212 " %.20g: %.18g,%.18g",(double) coordinates,point.x,point.y);
5214 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
5215 " %.20g: %g %g (duplicate)",(
double) coordinates,point.x,point.y);
5218 if (coordinates > 0)
5220 if ((fabs(p.x-point.x) >= MagickEpsilon) ||
5221 (fabs(p.y-point.y) >= MagickEpsilon))
5222 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end last (%.20g)",
5223 (double) coordinates);
5225 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end open (%.20g)",
5226 (
double) coordinates);
5230 MagickExport MagickBooleanType DrawPrimitive(
Image *image,
5249 if (draw_info->debug != MagickFalse)
5251 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5252 " begin draw-primitive");
5253 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5254 " affine: %g,%g,%g,%g,%g,%g",draw_info->affine.sx,
5255 draw_info->affine.rx,draw_info->affine.ry,draw_info->affine.sy,
5256 draw_info->affine.tx,draw_info->affine.ty);
5258 exception=(&image->exception);
5260 if ((IsGrayColorspace(image->colorspace) != MagickFalse) &&
5261 ((IsPixelGray(&draw_info->fill) == MagickFalse) ||
5262 (IsPixelGray(&draw_info->stroke) == MagickFalse)))
5263 status=SetImageColorspace(image,sRGBColorspace);
5264 if (draw_info->compliance == SVGCompliance)
5266 status&=SetImageClipMask(image,draw_info->clipping_mask);
5267 status&=SetImageMask(image,draw_info->composite_mask);
5269 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5270 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5271 image_view=AcquireAuthenticCacheView(image,exception);
5272 switch (primitive_info->primitive)
5274 case ColorPrimitive:
5276 switch (primitive_info->method)
5284 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5287 (void) GetFillColor(draw_info,x,y,q);
5288 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5296 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5297 for (y=0; y < (ssize_t) image->rows; y++)
5302 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5306 for (x=0; x < (ssize_t) image->columns; x++)
5308 if (IsColorSimilar(image,q,&target) == MagickFalse)
5313 (void) GetFillColor(draw_info,x,y,q);
5316 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5317 if (status == MagickFalse)
5322 case FloodfillMethod:
5323 case FillToBorderMethod:
5328 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5329 if (primitive_info->method == FillToBorderMethod)
5331 target.red=(MagickRealType) draw_info->border_color.red;
5332 target.green=(MagickRealType) draw_info->border_color.green;
5333 target.blue=(MagickRealType) draw_info->border_color.blue;
5335 status&=FloodfillPaintImage(image,DefaultChannels,draw_info,&target,x,
5336 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5342 for (y=0; y < (ssize_t) image->rows; y++)
5350 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5354 for (x=0; x < (ssize_t) image->columns; x++)
5356 (void) GetFillColor(draw_info,x,y,q);
5359 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5360 if (status == MagickFalse)
5368 case MattePrimitive:
5370 if (image->matte == MagickFalse)
5371 status&=SetImageAlphaChannel(image,OpaqueAlphaChannel);
5372 switch (primitive_info->method)
5383 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5386 (void) GetFillColor(draw_info,x,y,&pixel);
5387 SetPixelOpacity(q,pixel.opacity);
5388 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5397 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5398 for (y=0; y < (ssize_t) image->rows; y++)
5406 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5410 for (x=0; x < (ssize_t) image->columns; x++)
5412 if (IsColorSimilar(image,q,&target) == MagickFalse)
5417 (void) GetFillColor(draw_info,x,y,&pixel);
5418 SetPixelOpacity(q,pixel.opacity);
5421 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5422 if (status == MagickFalse)
5427 case FloodfillMethod:
5428 case FillToBorderMethod:
5433 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5434 if (primitive_info->method == FillToBorderMethod)
5436 target.red=(MagickRealType) draw_info->border_color.red;
5437 target.green=(MagickRealType) draw_info->border_color.green;
5438 target.blue=(MagickRealType) draw_info->border_color.blue;
5440 status&=FloodfillPaintImage(image,OpacityChannel,draw_info,&target,x,
5441 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5450 for (y=0; y < (ssize_t) image->rows; y++)
5458 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5462 for (x=0; x < (ssize_t) image->columns; x++)
5464 (void) GetFillColor(draw_info,x,y,&pixel);
5465 SetPixelOpacity(q,pixel.opacity);
5468 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5469 if (status == MagickFalse)
5477 case ImagePrimitive:
5483 composite_geometry[MaxTextExtent];
5499 if (primitive_info->text == (
char *) NULL)
5501 clone_info=AcquireImageInfo();
5502 composite_images=(
Image *) NULL;
5503 if (LocaleNCompare(primitive_info->text,
"data:",5) == 0)
5504 composite_images=ReadInlineImage(clone_info,primitive_info->text,
5507 if (*primitive_info->text !=
'\0')
5518 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5520 (void) SetImageInfo(clone_info,1,exception);
5521 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5523 if (clone_info->size != (
char *) NULL)
5524 clone_info->size=DestroyString(clone_info->size);
5525 if (clone_info->extract != (
char *) NULL)
5526 clone_info->extract=DestroyString(clone_info->extract);
5527 path_status=GetPathAttributes(clone_info->filename,&attributes);
5528 if (path_status != MagickFalse)
5530 if (S_ISCHR(attributes.st_mode) == 0)
5531 composite_images=ReadImage(clone_info,exception);
5533 (
void) ThrowMagickException(exception,GetMagickModule(),
5534 FileOpenError,
"UnableToOpenFile",
"`%s'",
5535 clone_info->filename);
5538 if ((LocaleCompare(clone_info->magick,
"ftp") != 0) &&
5539 (LocaleCompare(clone_info->magick,
"http") != 0) &&
5540 (LocaleCompare(clone_info->magick,
"https") != 0) &&
5541 (LocaleCompare(clone_info->magick,
"vid") != 0))
5542 composite_images=ReadImage(clone_info,exception);
5544 (
void) ThrowMagickException(exception,GetMagickModule(),
5545 FileOpenError,
"UnableToOpenFile",
"`%s'",clone_info->filename);
5547 clone_info=DestroyImageInfo(clone_info);
5548 if (composite_images == (
Image *) NULL)
5553 composite_image=RemoveFirstImageFromList(&composite_images);
5554 composite_images=DestroyImageList(composite_images);
5555 (void) SetImageProgressMonitor(composite_image,(MagickProgressMonitor)
5556 NULL,(
void *) NULL);
5557 x1=CastDoubleToLong(ceil(primitive_info[1].point.x-0.5));
5558 y1=CastDoubleToLong(ceil(primitive_info[1].point.y-0.5));
5559 if (((x1 != 0L) && (x1 != (ssize_t) composite_image->columns)) ||
5560 ((y1 != 0L) && (y1 != (ssize_t) composite_image->rows)))
5563 geometry[MaxTextExtent];
5568 (void) FormatLocaleString(geometry,MaxTextExtent,
"%gx%g!",
5569 primitive_info[1].point.x,primitive_info[1].point.y);
5570 composite_image->filter=image->filter;
5571 status&=TransformImage(&composite_image,(
char *) NULL,geometry);
5573 if (composite_image->matte == MagickFalse)
5574 status&=SetImageAlphaChannel(composite_image,OpaqueAlphaChannel);
5575 if (draw_info->opacity != OpaqueOpacity)
5576 status&=SetImageOpacity(composite_image,draw_info->opacity);
5577 SetGeometry(image,&geometry);
5578 image->gravity=draw_info->gravity;
5581 (void) FormatLocaleString(composite_geometry,MaxTextExtent,
5582 "%.20gx%.20g%+.20g%+.20g",(
double) composite_image->columns,(double)
5583 composite_image->rows,(
double) geometry.x,(double) geometry.y);
5584 (void) ParseGravityGeometry(image,composite_geometry,&geometry,
5586 affine=draw_info->affine;
5587 affine.tx=(double) geometry.x;
5588 affine.ty=(
double) geometry.y;
5589 composite_image->interpolate=image->interpolate;
5590 if ((draw_info->compose == OverCompositeOp) ||
5591 (draw_info->compose == SrcOverCompositeOp))
5592 status&=DrawAffineImage(image,composite_image,&affine);
5594 status&=CompositeImage(image,draw_info->compose,composite_image,
5595 geometry.x,geometry.y);
5596 composite_image=DestroyImage(composite_image);
5599 case PointPrimitive:
5607 if ((y < 0) || (y >= (ssize_t) image->rows))
5609 if ((x < 0) || (x >= (ssize_t) image->columns))
5611 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5614 (void) GetFillColor(draw_info,x,y,&fill_color);
5615 MagickCompositeOver(&fill_color,(MagickRealType) fill_color.opacity,q,
5616 (MagickRealType) q->opacity,q);
5617 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5623 geometry[MaxTextExtent];
5628 if (primitive_info->text == (
char *) NULL)
5630 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5631 (void) CloneString(&clone_info->text,primitive_info->text);
5632 (void) FormatLocaleString(geometry,MaxTextExtent,
"%+f%+f",
5633 primitive_info->point.x,primitive_info->point.y);
5634 (void) CloneString(&clone_info->geometry,geometry);
5635 status&=AnnotateImage(image,clone_info);
5636 clone_info=DestroyDrawInfo(clone_info);
5648 if (IsEventLogging() != MagickFalse)
5649 LogPrimitiveInfo(primitive_info);
5650 scale=ExpandAffine(&draw_info->affine);
5651 if ((draw_info->dash_pattern != (
double *) NULL) &&
5652 (fabs(draw_info->dash_pattern[0]) >= MagickEpsilon) &&
5653 (fabs(scale*draw_info->stroke_width) >= MagickEpsilon) &&
5654 (draw_info->stroke.opacity != (Quantum) TransparentOpacity))
5659 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5660 clone_info->stroke_width=0.0;
5661 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5662 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5663 clone_info=DestroyDrawInfo(clone_info);
5664 if (status != MagickFalse)
5665 status&=DrawDashPolygon(draw_info,primitive_info,image);
5668 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5670 ((draw_info->stroke.opacity != (Quantum) TransparentOpacity) ||
5671 (draw_info->stroke_pattern != (
Image *) NULL)))
5683 closed_path=primitive_info[0].closed_subpath;
5684 i=(ssize_t) primitive_info[0].coordinates;
5685 x=fabs(primitive_info[i-1].point.x-primitive_info[0].point.x);
5686 y=fabs(primitive_info[i-1].point.y-primitive_info[0].point.y);
5687 if ((x < MagickEpsilon) && (y < MagickEpsilon))
5688 closed_path=MagickTrue;
5689 if ((((draw_info->linecap == RoundCap) ||
5690 (closed_path != MagickFalse)) &&
5691 (draw_info->linejoin == RoundJoin)) ||
5692 (primitive_info[i].primitive != UndefinedPrimitive))
5694 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5697 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5698 clone_info->stroke_width=0.0;
5699 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5700 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5701 clone_info=DestroyDrawInfo(clone_info);
5702 if (status != MagickFalse)
5703 status&=DrawStrokePolygon(image,draw_info,primitive_info);
5706 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5710 image_view=DestroyCacheView(image_view);
5711 if (draw_info->compliance == SVGCompliance)
5713 status&=SetImageClipMask(image,(
Image *) NULL);
5714 status&=SetImageMask(image,(
Image *) NULL);
5716 if (draw_info->debug != MagickFalse)
5717 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-primitive");
5718 return(status != 0 ? MagickTrue : MagickFalse);
5751 static MagickBooleanType DrawRoundLinecap(
Image *image,
5760 for (i=0; i < 4; i++)
5761 linecap[i]=(*primitive_info);
5762 linecap[0].coordinates=4;
5763 linecap[1].point.x+=2.0*MagickEpsilon;
5764 linecap[2].point.x+=2.0*MagickEpsilon;
5765 linecap[2].point.y+=2.0*MagickEpsilon;
5766 linecap[3].point.y+=2.0*MagickEpsilon;
5767 linecap[4].primitive=UndefinedPrimitive;
5768 return(DrawPolygonPrimitive(image,draw_info,linecap));
5771 static MagickBooleanType DrawStrokePolygon(
Image *image,
5793 if (draw_info->debug != MagickFalse)
5794 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5795 " begin draw-stroke-polygon");
5796 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5797 clone_info->fill=draw_info->stroke;
5798 if (clone_info->fill_pattern != (
Image *) NULL)
5799 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
5800 if (clone_info->stroke_pattern != (
Image *) NULL)
5801 clone_info->fill_pattern=CloneImage(clone_info->stroke_pattern,0,0,
5802 MagickTrue,&clone_info->stroke_pattern->exception);
5803 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5804 clone_info->stroke_width=0.0;
5805 clone_info->fill_rule=NonZeroRule;
5807 for (p=primitive_info; p->primitive != UndefinedPrimitive; p+=p->coordinates)
5809 if (p->coordinates == 1)
5811 stroke_polygon=TraceStrokePolygon(draw_info,p,&image->exception);
5817 status&=DrawPolygonPrimitive(image,clone_info,stroke_polygon);
5818 stroke_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(stroke_polygon);
5821 q=p+p->coordinates-1;
5822 closed_path=p->closed_subpath;
5823 if ((draw_info->linecap == RoundCap) && (closed_path == MagickFalse))
5825 status&=DrawRoundLinecap(image,draw_info,p);
5826 status&=DrawRoundLinecap(image,draw_info,q);
5829 clone_info=DestroyDrawInfo(clone_info);
5830 if (draw_info->debug != MagickFalse)
5831 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5832 " end draw-stroke-polygon");
5833 return(status != 0 ? MagickTrue : MagickFalse);
5859 MagickExport
void GetAffineMatrix(
AffineMatrix *affine_matrix)
5862 if (IsEventLogging() != MagickFalse)
5863 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5864 (void) memset(affine_matrix,0,
sizeof(*affine_matrix));
5865 affine_matrix->sx=1.0;
5866 affine_matrix->sy=1.0;
5910 assert(draw_info != (
DrawInfo *) NULL);
5911 if (IsEventLogging() != MagickFalse)
5912 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5913 (void) memset(draw_info,0,
sizeof(*draw_info));
5914 clone_info=CloneImageInfo(image_info);
5915 GetAffineMatrix(&draw_info->affine);
5916 exception=AcquireExceptionInfo();
5917 (void) QueryColorDatabase(
"#000F",&draw_info->fill,exception);
5918 (void) QueryColorDatabase(
"#FFF0",&draw_info->stroke,exception);
5919 draw_info->stroke_antialias=clone_info->antialias;
5920 draw_info->stroke_width=1.0;
5921 draw_info->fill_rule=EvenOddRule;
5922 draw_info->opacity=OpaqueOpacity;
5923 draw_info->fill_opacity=OpaqueOpacity;
5924 draw_info->stroke_opacity=OpaqueOpacity;
5925 draw_info->linecap=ButtCap;
5926 draw_info->linejoin=MiterJoin;
5927 draw_info->miterlimit=10;
5928 draw_info->decorate=NoDecoration;
5929 if (clone_info->font != (
char *) NULL)
5930 draw_info->font=AcquireString(clone_info->font);
5931 if (clone_info->density != (
char *) NULL)
5932 draw_info->density=AcquireString(clone_info->density);
5933 draw_info->text_antialias=clone_info->antialias;
5934 draw_info->pointsize=12.0;
5935 if (fabs(clone_info->pointsize) >= MagickEpsilon)
5936 draw_info->pointsize=clone_info->pointsize;
5937 draw_info->undercolor.opacity=(Quantum) TransparentOpacity;
5938 draw_info->border_color=clone_info->border_color;
5939 draw_info->compose=OverCompositeOp;
5940 if (clone_info->server_name != (
char *) NULL)
5941 draw_info->server_name=AcquireString(clone_info->server_name);
5942 draw_info->render=MagickTrue;
5943 draw_info->clip_path=MagickFalse;
5944 draw_info->debug=(GetLogEventMask() & (DrawEvent | AnnotateEvent)) != 0 ?
5945 MagickTrue : MagickFalse;
5946 option=GetImageOption(clone_info,
"direction");
5947 if (option != (
const char *) NULL)
5948 draw_info->direction=(DirectionType) ParseCommandOption(
5949 MagickDirectionOptions,MagickFalse,option);
5951 draw_info->direction=UndefinedDirection;
5952 option=GetImageOption(clone_info,
"encoding");
5953 if (option != (
const char *) NULL)
5954 (void) CloneString(&draw_info->encoding,option);
5955 option=GetImageOption(clone_info,
"family");
5956 if (option != (
const char *) NULL)
5957 (void) CloneString(&draw_info->family,option);
5958 option=GetImageOption(clone_info,
"fill");
5959 if (option != (
const char *) NULL)
5960 (void) QueryColorDatabase(option,&draw_info->fill,exception);
5961 option=GetImageOption(clone_info,
"gravity");
5962 if (option != (
const char *) NULL)
5963 draw_info->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
5964 MagickFalse,option);
5965 option=GetImageOption(clone_info,
"interline-spacing");
5966 if (option != (
const char *) NULL)
5967 draw_info->interline_spacing=GetDrawValue(option,&next_token);
5968 option=GetImageOption(clone_info,
"interword-spacing");
5969 if (option != (
const char *) NULL)
5970 draw_info->interword_spacing=GetDrawValue(option,&next_token);
5971 option=GetImageOption(clone_info,
"kerning");
5972 if (option != (
const char *) NULL)
5973 draw_info->kerning=GetDrawValue(option,&next_token);
5974 option=GetImageOption(clone_info,
"stroke");
5975 if (option != (
const char *) NULL)
5976 (void) QueryColorDatabase(option,&draw_info->stroke,exception);
5977 option=GetImageOption(clone_info,
"strokewidth");
5978 if (option != (
const char *) NULL)
5979 draw_info->stroke_width=GetDrawValue(option,&next_token);
5980 option=GetImageOption(clone_info,
"style");
5981 if (option != (
const char *) NULL)
5982 draw_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
5983 MagickFalse,option);
5984 option=GetImageOption(clone_info,
"undercolor");
5985 if (option != (
const char *) NULL)
5986 (void) QueryColorDatabase(option,&draw_info->undercolor,exception);
5987 option=GetImageOption(clone_info,
"weight");
5988 if (option != (
const char *) NULL)
5993 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,option);
5995 weight=(ssize_t) StringToUnsignedLong(option);
5996 draw_info->weight=(size_t) weight;
5998 exception=DestroyExceptionInfo(exception);
5999 draw_info->signature=MagickCoreSignature;
6000 clone_info=DestroyImageInfo(clone_info);
6028 static inline double Permutate(
const ssize_t n,
const ssize_t k)
6037 for (i=k+1; i <= n; i++)
6039 for (i=1; i <= (n-k); i++)
6067 center.x=0.5*(end.x+start.x);
6068 center.y=0.5*(end.y+start.y);
6069 radius.x=fabs(center.x-start.x);
6070 radius.y=fabs(center.y-start.y);
6071 return(TraceEllipse(mvg_info,center,radius,degrees));
6074 static MagickBooleanType TraceArcPath(
MVGInfo *mvg_info,
const PointInfo start,
6076 const MagickBooleanType large_arc,
const MagickBooleanType sweep)
6113 offset=mvg_info->offset;
6114 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6115 primitive_info->coordinates=0;
6116 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6117 (fabs(start.y-end.y) < MagickEpsilon))
6118 return(TracePoint(primitive_info,end));
6119 radii.x=fabs(arc.x);
6120 radii.y=fabs(arc.y);
6121 if ((radii.x < MagickEpsilon) || (radii.y < MagickEpsilon))
6122 return(TraceLine(primitive_info,start,end));
6123 cosine=cos(DegreesToRadians(fmod((
double) angle,360.0)));
6124 sine=sin(DegreesToRadians(fmod((
double) angle,360.0)));
6125 center.x=(double) (cosine*(end.x-start.x)/2+sine*(end.y-start.y)/2);
6126 center.y=(double) (cosine*(end.y-start.y)/2-sine*(end.x-start.x)/2);
6127 delta=(center.x*center.x)/(radii.x*radii.x)+(center.y*center.y)/
6129 if (delta < MagickEpsilon)
6130 return(TraceLine(primitive_info,start,end));
6133 radii.x*=sqrt((
double) delta);
6134 radii.y*=sqrt((
double) delta);
6136 points[0].x=(double) (cosine*start.x/radii.x+sine*start.y/radii.x);
6137 points[0].y=(double) (cosine*start.y/radii.y-sine*start.x/radii.y);
6138 points[1].x=(double) (cosine*end.x/radii.x+sine*end.y/radii.x);
6139 points[1].y=(double) (cosine*end.y/radii.y-sine*end.x/radii.y);
6140 alpha=points[1].x-points[0].x;
6141 beta=points[1].y-points[0].y;
6142 if (fabs(alpha*alpha+beta*beta) < MagickEpsilon)
6143 return(TraceLine(primitive_info,start,end));
6144 factor=PerceptibleReciprocal(alpha*alpha+beta*beta)-0.25;
6149 factor=sqrt((
double) factor);
6150 if (sweep == large_arc)
6153 center.x=(double) ((points[0].x+points[1].x)/2-factor*beta);
6154 center.y=(double) ((points[0].y+points[1].y)/2+factor*alpha);
6155 alpha=atan2(points[0].y-center.y,points[0].x-center.x);
6156 theta=atan2(points[1].y-center.y,points[1].x-center.x)-alpha;
6157 if ((theta < 0.0) && (sweep != MagickFalse))
6158 theta+=2.0*MagickPI;
6160 if ((theta > 0.0) && (sweep == MagickFalse))
6161 theta-=2.0*MagickPI;
6162 arc_segments=(size_t) CastDoubleToLong(ceil(fabs((
double) (theta/(0.5*
6163 MagickPI+MagickEpsilon)))));
6166 for (i=0; i < (ssize_t) arc_segments; i++)
6168 beta=0.5*((alpha+(i+1)*theta/arc_segments)-(alpha+i*theta/arc_segments));
6169 gamma=(8.0/3.0)*sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))*
6170 sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))/
6171 sin(fmod((
double) beta,DegreesToRadians(360.0)));
6172 points[0].x=(double) (center.x+cos(fmod((
double) (alpha+(
double) i*theta/
6173 arc_segments),DegreesToRadians(360.0)))-gamma*sin(fmod((
double) (alpha+
6174 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6175 points[0].y=(double) (center.y+sin(fmod((
double) (alpha+(
double) i*theta/
6176 arc_segments),DegreesToRadians(360.0)))+gamma*cos(fmod((
double) (alpha+
6177 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6178 points[2].x=(double) (center.x+cos(fmod((
double) (alpha+(double) (i+1)*
6179 theta/arc_segments),DegreesToRadians(360.0))));
6180 points[2].y=(double) (center.y+sin(fmod((
double) (alpha+(double) (i+1)*
6181 theta/arc_segments),DegreesToRadians(360.0))));
6182 points[1].x=(double) (points[2].x+gamma*sin(fmod((
double) (alpha+(double)
6183 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6184 points[1].y=(double) (points[2].y-gamma*cos(fmod((
double) (alpha+(double)
6185 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6186 p->point.x=(p == primitive_info) ? start.x : (p-1)->point.x;
6187 p->point.y=(p == primitive_info) ? start.y : (p-1)->point.y;
6188 (p+1)->point.x=(
double) (cosine*radii.x*points[0].x-sine*radii.y*
6190 (p+1)->point.y=(
double) (sine*radii.x*points[0].x+cosine*radii.y*
6192 (p+2)->point.x=(
double) (cosine*radii.x*points[1].x-sine*radii.y*
6194 (p+2)->point.y=(
double) (sine*radii.x*points[1].x+cosine*radii.y*
6196 (p+3)->point.x=(
double) (cosine*radii.x*points[2].x-sine*radii.y*
6198 (p+3)->point.y=(
double) (sine*radii.x*points[2].x+cosine*radii.y*
6200 if (i == (ssize_t) (arc_segments-1))
6202 status&=TraceBezier(mvg_info,4);
6205 p=(*mvg_info->primitive_info)+mvg_info->offset;
6206 mvg_info->offset+=p->coordinates;
6210 return(MagickFalse);
6211 mvg_info->offset=offset;
6212 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6213 primitive_info->coordinates=(
size_t) (p-primitive_info);
6214 primitive_info->closed_subpath=MagickFalse;
6215 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6217 p->primitive=primitive_info->primitive;
6223 static MagickBooleanType TraceBezier(
MVGInfo *mvg_info,
6224 const size_t number_coordinates)
6253 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6254 quantum=number_coordinates;
6255 for (i=0; i < (ssize_t) number_coordinates; i++)
6257 for (j=i+1; j < (ssize_t) number_coordinates; j++)
6259 alpha=fabs(primitive_info[j].point.x-primitive_info[i].point.x);
6260 if (alpha > (
double) MAGICK_SSIZE_MAX)
6262 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6263 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6264 return(MagickFalse);
6266 if (alpha > (
double) quantum)
6267 quantum=(
size_t) alpha;
6268 alpha=fabs(primitive_info[j].point.y-primitive_info[i].point.y);
6269 if (alpha > (
double) MAGICK_SSIZE_MAX)
6271 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6272 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6273 return(MagickFalse);
6275 if (alpha > (
double) quantum)
6276 quantum=(
size_t) alpha;
6279 coefficients=(
double *) AcquireQuantumMemory(number_coordinates,
6280 sizeof(*coefficients));
6281 quantum=MagickMin(quantum/number_coordinates,BezierQuantum);
6282 points=(
PointInfo *) AcquireQuantumMemory(quantum,number_coordinates*
6284 if ((coefficients == (
double *) NULL) || (points == (
PointInfo *) NULL))
6287 points=(
PointInfo *) RelinquishMagickMemory(points);
6288 if (coefficients != (
double *) NULL)
6289 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6290 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6291 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6292 return(MagickFalse);
6294 control_points=quantum*number_coordinates;
6295 if (CheckPrimitiveExtent(mvg_info,(
double) control_points+1) == MagickFalse)
6297 points=(
PointInfo *) RelinquishMagickMemory(points);
6298 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6299 return(MagickFalse);
6301 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6305 end=primitive_info[number_coordinates-1].point;
6306 for (i=0; i < (ssize_t) number_coordinates; i++)
6307 coefficients[i]=Permutate((ssize_t) number_coordinates-1,i);
6309 for (i=0; i < (ssize_t) control_points; i++)
6314 alpha=pow((
double) (1.0-weight),(
double) number_coordinates-1.0);
6315 for (j=0; j < (ssize_t) number_coordinates; j++)
6317 point.x+=alpha*coefficients[j]*p->point.x;
6318 point.y+=alpha*coefficients[j]*p->point.y;
6319 alpha*=weight/(1.0-weight);
6323 weight+=1.0/control_points;
6329 for (i=0; i < (ssize_t) control_points; i++)
6331 if (TracePoint(p,points[i]) == MagickFalse)
6333 points=(
PointInfo *) RelinquishMagickMemory(points);
6334 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6335 return(MagickFalse);
6339 if (TracePoint(p,end) == MagickFalse)
6341 points=(
PointInfo *) RelinquishMagickMemory(points);
6342 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6343 return(MagickFalse);
6346 primitive_info->coordinates=(size_t) (p-primitive_info);
6347 primitive_info->closed_subpath=MagickFalse;
6348 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6350 p->primitive=primitive_info->primitive;
6353 points=(
PointInfo *) RelinquishMagickMemory(points);
6354 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6358 static MagickBooleanType TraceCircle(
MVGInfo *mvg_info,
const PointInfo start,
6370 alpha=end.x-start.x;
6372 radius=hypot((
double) alpha,(
double) beta);
6373 offset.x=(double) radius;
6374 offset.y=(double) radius;
6377 return(TraceEllipse(mvg_info,start,offset,degrees));
6380 static MagickBooleanType TraceEllipse(
MVGInfo *mvg_info,
const PointInfo center,
6406 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6407 primitive_info->coordinates=0;
6408 if ((fabs(radii.x) < MagickEpsilon) || (fabs(radii.y) < MagickEpsilon))
6410 delta=2.0*PerceptibleReciprocal(MagickMax(radii.x,radii.y));
6412 if ((delta >= 0.0) && (delta < (MagickPI/8.0)))
6413 step=MagickPI/4.0/(MagickPI*PerceptibleReciprocal(delta)/2.0);
6414 angle.x=DegreesToRadians(arc.x);
6418 angle.y=DegreesToRadians(y);
6419 coordinates=ceil((angle.y-angle.x)/step+1.0);
6420 if (CheckPrimitiveExtent(mvg_info,coordinates) == MagickFalse)
6421 return(MagickFalse);
6422 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6423 for (p=primitive_info; angle.x < angle.y; angle.x+=step)
6425 point.x=cos(fmod(angle.x,DegreesToRadians(360.0)))*radii.x+center.x;
6426 point.y=sin(fmod(angle.x,DegreesToRadians(360.0)))*radii.y+center.y;
6427 if (TracePoint(p,point) == MagickFalse)
6428 return(MagickFalse);
6431 point.x=cos(fmod(angle.y,DegreesToRadians(360.0)))*radii.x+center.x;
6432 point.y=sin(fmod(angle.y,DegreesToRadians(360.0)))*radii.y+center.y;
6433 if (TracePoint(p,point) == MagickFalse)
6434 return(MagickFalse);
6436 primitive_info->coordinates=(size_t) (p-primitive_info);
6437 primitive_info->closed_subpath=MagickFalse;
6438 x=fabs(primitive_info[0].point.x-
6439 primitive_info[primitive_info->coordinates-1].point.x);
6440 y=fabs(primitive_info[0].point.y-
6441 primitive_info[primitive_info->coordinates-1].point.y);
6442 if ((x < MagickEpsilon) && (y < MagickEpsilon))
6443 primitive_info->closed_subpath=MagickTrue;
6444 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6446 p->primitive=primitive_info->primitive;
6452 static MagickBooleanType TraceLine(
PrimitiveInfo *primitive_info,
6455 if (TracePoint(primitive_info,start) == MagickFalse)
6456 return(MagickFalse);
6457 if (TracePoint(primitive_info+1,end) == MagickFalse)
6458 return(MagickFalse);
6459 (primitive_info+1)->primitive=primitive_info->primitive;
6460 primitive_info->coordinates=2;
6461 primitive_info->closed_subpath=MagickFalse;
6465 static ssize_t TracePath(
Image *image,
MVGInfo *mvg_info,
const char *path)
6469 token[MaxTextExtent] =
"";
6487 points[4] = { {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0} },
6510 subpath_offset=mvg_info->offset;
6511 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6514 number_coordinates=0;
6517 primitive_type=primitive_info->primitive;
6519 for (p=path; *p !=
'\0'; )
6521 if (status == MagickFalse)
6523 while (isspace((
int) ((
unsigned char) *p)) != 0)
6527 last_attribute=attribute;
6528 attribute=(int) (*p++);
6538 large_arc = MagickFalse,
6539 sweep = MagickFalse;
6549 (void) GetNextToken(p,&p,MaxTextExtent,token);
6551 (void) GetNextToken(p,&p,MaxTextExtent,token);
6552 arc.x=GetDrawValue(token,&next_token);
6553 if (token == next_token)
6554 ThrowPointExpectedException(image,token);
6555 (void) GetNextToken(p,&p,MaxTextExtent,token);
6557 (void) GetNextToken(p,&p,MaxTextExtent,token);
6558 arc.y=GetDrawValue(token,&next_token);
6559 if (token == next_token)
6560 ThrowPointExpectedException(image,token);
6561 (void) GetNextToken(p,&p,MaxTextExtent,token);
6563 (void) GetNextToken(p,&p,MaxTextExtent,token);
6564 angle=GetDrawValue(token,&next_token);
6565 if (token == next_token)
6566 ThrowPointExpectedException(image,token);
6567 (void) GetNextToken(p,&p,MaxTextExtent,token);
6569 (void) GetNextToken(p,&p,MaxTextExtent,token);
6570 large_arc=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6571 (void) GetNextToken(p,&p,MaxTextExtent,token);
6573 (void) GetNextToken(p,&p,MaxTextExtent,token);
6574 sweep=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6576 (void) GetNextToken(p,&p,MaxTextExtent,token);
6577 (void) GetNextToken(p,&p,MaxTextExtent,token);
6579 (void) GetNextToken(p,&p,MaxTextExtent,token);
6580 x=GetDrawValue(token,&next_token);
6581 if (token == next_token)
6582 ThrowPointExpectedException(image,token);
6583 (void) GetNextToken(p,&p,MaxTextExtent,token);
6585 (void) GetNextToken(p,&p,MaxTextExtent,token);
6586 y=GetDrawValue(token,&next_token);
6587 if (token == next_token)
6588 ThrowPointExpectedException(image,token);
6589 end.x=(double) (attribute == (
int)
'A' ? x : point.x+x);
6590 end.y=(double) (attribute == (
int)
'A' ? y : point.y+y);
6591 status&=TraceArcPath(mvg_info,point,end,arc,angle,large_arc,sweep);
6592 q=(*mvg_info->primitive_info)+mvg_info->offset;
6593 mvg_info->offset+=q->coordinates;
6596 while (isspace((
int) ((
unsigned char) *p)) != 0)
6600 }
while (IsPoint(p) != MagickFalse);
6612 for (i=1; i < 4; i++)
6614 (void) GetNextToken(p,&p,MaxTextExtent,token);
6616 (void) GetNextToken(p,&p,MaxTextExtent,token);
6617 x=GetDrawValue(token,&next_token);
6618 if (token == next_token)
6619 ThrowPointExpectedException(image,token);
6620 (void) GetNextToken(p,&p,MaxTextExtent,token);
6622 (void) GetNextToken(p,&p,MaxTextExtent,token);
6623 y=GetDrawValue(token,&next_token);
6624 if (token == next_token)
6625 ThrowPointExpectedException(image,token);
6626 end.x=(double) (attribute == (
int)
'C' ? x : point.x+x);
6627 end.y=(double) (attribute == (
int)
'C' ? y : point.y+y);
6630 for (i=0; i < 4; i++)
6631 (q+i)->point=points[i];
6632 if (TraceBezier(mvg_info,4) == MagickFalse)
6634 q=(*mvg_info->primitive_info)+mvg_info->offset;
6635 mvg_info->offset+=q->coordinates;
6638 while (isspace((
int) ((
unsigned char) *p)) != 0)
6642 }
while (IsPoint(p) != MagickFalse);
6650 (void) GetNextToken(p,&p,MaxTextExtent,token);
6652 (void) GetNextToken(p,&p,MaxTextExtent,token);
6653 x=GetDrawValue(token,&next_token);
6654 if (token == next_token)
6655 ThrowPointExpectedException(image,token);
6656 point.x=(double) (attribute == (
int)
'H' ? x: point.x+x);
6657 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6659 q=(*mvg_info->primitive_info)+mvg_info->offset;
6660 if (TracePoint(q,point) == MagickFalse)
6662 mvg_info->offset+=q->coordinates;
6664 while (isspace((
int) ((
unsigned char) *p)) != 0)
6668 }
while (IsPoint(p) != MagickFalse);
6679 (void) GetNextToken(p,&p,MaxTextExtent,token);
6681 (void) GetNextToken(p,&p,MaxTextExtent,token);
6682 x=GetDrawValue(token,&next_token);
6683 if (token == next_token)
6684 ThrowPointExpectedException(image,token);
6685 (void) GetNextToken(p,&p,MaxTextExtent,token);
6687 (void) GetNextToken(p,&p,MaxTextExtent,token);
6688 y=GetDrawValue(token,&next_token);
6689 if (token == next_token)
6690 ThrowPointExpectedException(image,token);
6691 point.x=(double) (attribute == (
int)
'L' ? x : point.x+x);
6692 point.y=(double) (attribute == (
int)
'L' ? y : point.y+y);
6693 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6695 q=(*mvg_info->primitive_info)+mvg_info->offset;
6696 if (TracePoint(q,point) == MagickFalse)
6698 mvg_info->offset+=q->coordinates;
6700 while (isspace((
int) ((
unsigned char) *p)) != 0)
6704 }
while (IsPoint(p) != MagickFalse);
6713 if (mvg_info->offset != subpath_offset)
6715 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6716 primitive_info->coordinates=(size_t) (q-primitive_info);
6717 number_coordinates+=primitive_info->coordinates;
6719 subpath_offset=mvg_info->offset;
6724 (void) GetNextToken(p,&p,MaxTextExtent,token);
6726 (void) GetNextToken(p,&p,MaxTextExtent,token);
6727 x=GetDrawValue(token,&next_token);
6728 if (token == next_token)
6729 ThrowPointExpectedException(image,token);
6730 (void) GetNextToken(p,&p,MaxTextExtent,token);
6732 (void) GetNextToken(p,&p,MaxTextExtent,token);
6733 y=GetDrawValue(token,&next_token);
6734 if (token == next_token)
6735 ThrowPointExpectedException(image,token);
6736 point.x=(double) (attribute == (
int)
'M' ? x : point.x+x);
6737 point.y=(double) (attribute == (
int)
'M' ? y : point.y+y);
6741 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6743 q=(*mvg_info->primitive_info)+mvg_info->offset;
6744 if (TracePoint(q,point) == MagickFalse)
6746 mvg_info->offset+=q->coordinates;
6748 while (isspace((
int) ((
unsigned char) *p)) != 0)
6752 }
while (IsPoint(p) != MagickFalse);
6764 for (i=1; i < 3; i++)
6766 (void) GetNextToken(p,&p,MaxTextExtent,token);
6768 (void) GetNextToken(p,&p,MaxTextExtent,token);
6769 x=GetDrawValue(token,&next_token);
6770 if (token == next_token)
6771 ThrowPointExpectedException(image,token);
6772 (void) GetNextToken(p,&p,MaxTextExtent,token);
6774 (void) GetNextToken(p,&p,MaxTextExtent,token);
6775 y=GetDrawValue(token,&next_token);
6776 if (token == next_token)
6777 ThrowPointExpectedException(image,token);
6780 end.x=(double) (attribute == (
int)
'Q' ? x : point.x+x);
6781 end.y=(double) (attribute == (
int)
'Q' ? y : point.y+y);
6784 for (i=0; i < 3; i++)
6785 (q+i)->point=points[i];
6786 if (TraceBezier(mvg_info,3) == MagickFalse)
6788 q=(*mvg_info->primitive_info)+mvg_info->offset;
6789 mvg_info->offset+=q->coordinates;
6792 while (isspace((
int) ((
unsigned char) *p)) != 0)
6796 }
while (IsPoint(p) != MagickFalse);
6807 points[0]=points[3];
6808 points[1].x=2.0*points[3].x-points[2].x;
6809 points[1].y=2.0*points[3].y-points[2].y;
6810 for (i=2; i < 4; i++)
6812 (void) GetNextToken(p,&p,MaxTextExtent,token);
6814 (void) GetNextToken(p,&p,MaxTextExtent,token);
6815 x=GetDrawValue(token,&next_token);
6816 if (token == next_token)
6817 ThrowPointExpectedException(image,token);
6818 (void) GetNextToken(p,&p,MaxTextExtent,token);
6820 (void) GetNextToken(p,&p,MaxTextExtent,token);
6821 y=GetDrawValue(token,&next_token);
6822 if (token == next_token)
6823 ThrowPointExpectedException(image,token);
6826 end.x=(double) (attribute == (
int)
'S' ? x : point.x+x);
6827 end.y=(double) (attribute == (
int)
'S' ? y : point.y+y);
6830 if (strchr(
"CcSs",last_attribute) == (
char *) NULL)
6835 for (i=0; i < 4; i++)
6836 (q+i)->point=points[i];
6837 if (TraceBezier(mvg_info,4) == MagickFalse)
6839 q=(*mvg_info->primitive_info)+mvg_info->offset;
6840 mvg_info->offset+=q->coordinates;
6843 last_attribute=attribute;
6844 while (isspace((
int) ((
unsigned char) *p)) != 0)
6848 }
while (IsPoint(p) != MagickFalse);
6859 points[0]=points[2];
6860 points[1].x=2.0*points[2].x-points[1].x;
6861 points[1].y=2.0*points[2].y-points[1].y;
6862 for (i=2; i < 3; i++)
6864 (void) GetNextToken(p,&p,MaxTextExtent,token);
6866 (void) GetNextToken(p,&p,MaxTextExtent,token);
6867 x=GetDrawValue(token,&next_token);
6868 if (token == next_token)
6869 ThrowPointExpectedException(image,token);
6870 (void) GetNextToken(p,&p,MaxTextExtent,token);
6872 (void) GetNextToken(p,&p,MaxTextExtent,token);
6873 y=GetDrawValue(token,&next_token);
6874 if (token == next_token)
6875 ThrowPointExpectedException(image,token);
6876 end.x=(double) (attribute == (
int)
'T' ? x : point.x+x);
6877 end.y=(double) (attribute == (
int)
'T' ? y : point.y+y);
6880 if (status == MagickFalse)
6882 if (strchr(
"QqTt",last_attribute) == (
char *) NULL)
6887 for (i=0; i < 3; i++)
6888 (q+i)->point=points[i];
6889 if (TraceBezier(mvg_info,3) == MagickFalse)
6891 q=(*mvg_info->primitive_info)+mvg_info->offset;
6892 mvg_info->offset+=q->coordinates;
6895 last_attribute=attribute;
6896 while (isspace((
int) ((
unsigned char) *p)) != 0)
6900 }
while (IsPoint(p) != MagickFalse);
6911 (void) GetNextToken(p,&p,MaxTextExtent,token);
6913 (void) GetNextToken(p,&p,MaxTextExtent,token);
6914 y=GetDrawValue(token,&next_token);
6915 if (token == next_token)
6916 ThrowPointExpectedException(image,token);
6917 point.y=(double) (attribute == (
int)
'V' ? y : point.y+y);
6918 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6920 q=(*mvg_info->primitive_info)+mvg_info->offset;
6921 if (TracePoint(q,point) == MagickFalse)
6923 mvg_info->offset+=q->coordinates;
6925 while (isspace((
int) ((
unsigned char) *p)) != 0)
6929 }
while (IsPoint(p) != MagickFalse);
6939 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6941 q=(*mvg_info->primitive_info)+mvg_info->offset;
6942 if (TracePoint(q,point) == MagickFalse)
6944 mvg_info->offset+=q->coordinates;
6946 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6947 primitive_info->coordinates=(size_t) (q-primitive_info);
6948 primitive_info->closed_subpath=MagickTrue;
6949 number_coordinates+=primitive_info->coordinates;
6951 subpath_offset=mvg_info->offset;
6957 ThrowPointExpectedException(image,token);
6962 if (status == MagickFalse)
6964 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6965 primitive_info->coordinates=(size_t) (q-primitive_info);
6966 number_coordinates+=primitive_info->coordinates;
6967 for (i=0; i < (ssize_t) number_coordinates; i++)
6970 q->primitive=primitive_type;
6972 q->method=FillToBorderMethod;
6975 return((ssize_t) number_coordinates);
6978 static MagickBooleanType TraceRectangle(
PrimitiveInfo *primitive_info,
6991 if (TracePoint(p,start) == MagickFalse)
6992 return(MagickFalse);
6996 if (TracePoint(p,point) == MagickFalse)
6997 return(MagickFalse);
6999 if (TracePoint(p,end) == MagickFalse)
7000 return(MagickFalse);
7004 if (TracePoint(p,point) == MagickFalse)
7005 return(MagickFalse);
7007 if (TracePoint(p,start) == MagickFalse)
7008 return(MagickFalse);
7010 primitive_info->coordinates=(size_t) (p-primitive_info);
7011 primitive_info->closed_subpath=MagickTrue;
7012 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7014 p->primitive=primitive_info->primitive;
7020 static MagickBooleanType TraceRoundRectangle(
MVGInfo *mvg_info,
7040 offset=mvg_info->offset;
7041 segment.x=fabs(end.x-start.x);
7042 segment.y=fabs(end.y-start.y);
7043 if ((segment.x < MagickEpsilon) || (segment.y < MagickEpsilon))
7045 (*mvg_info->primitive_info+mvg_info->offset)->coordinates=0;
7048 if (arc.x > (0.5*segment.x))
7049 arc.x=0.5*segment.x;
7050 if (arc.y > (0.5*segment.y))
7051 arc.y=0.5*segment.y;
7052 point.x=start.x+segment.x-arc.x;
7053 point.y=start.y+arc.y;
7056 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7057 return(MagickFalse);
7058 p=(*mvg_info->primitive_info)+mvg_info->offset;
7059 mvg_info->offset+=p->coordinates;
7060 point.x=start.x+segment.x-arc.x;
7061 point.y=start.y+segment.y-arc.y;
7064 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7065 return(MagickFalse);
7066 p=(*mvg_info->primitive_info)+mvg_info->offset;
7067 mvg_info->offset+=p->coordinates;
7068 point.x=start.x+arc.x;
7069 point.y=start.y+segment.y-arc.y;
7072 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7073 return(MagickFalse);
7074 p=(*mvg_info->primitive_info)+mvg_info->offset;
7075 mvg_info->offset+=p->coordinates;
7076 point.x=start.x+arc.x;
7077 point.y=start.y+arc.y;
7080 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7081 return(MagickFalse);
7082 p=(*mvg_info->primitive_info)+mvg_info->offset;
7083 mvg_info->offset+=p->coordinates;
7084 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7085 return(MagickFalse);
7086 p=(*mvg_info->primitive_info)+mvg_info->offset;
7087 if (TracePoint(p,(*mvg_info->primitive_info+offset)->point) == MagickFalse)
7088 return(MagickFalse);
7090 mvg_info->offset=offset;
7091 primitive_info=(*mvg_info->primitive_info)+offset;
7092 primitive_info->coordinates=(size_t) (p-primitive_info);
7093 primitive_info->closed_subpath=MagickTrue;
7094 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7096 p->primitive=primitive_info->primitive;
7102 static MagickBooleanType TraceSquareLinecap(
PrimitiveInfo *primitive_info,
7103 const size_t number_vertices,
const double offset)
7120 for (i=1; i < (ssize_t) number_vertices; i++)
7122 dx=primitive_info[0].point.x-primitive_info[i].point.x;
7123 dy=primitive_info[0].point.y-primitive_info[i].point.y;
7124 if ((fabs((
double) dx) >= MagickEpsilon) ||
7125 (fabs((
double) dy) >= MagickEpsilon))
7128 if (i == (ssize_t) number_vertices)
7129 i=(ssize_t) number_vertices-1L;
7130 distance=hypot((
double) dx,(
double) dy);
7131 primitive_info[0].point.x=(double) (primitive_info[i].point.x+
7132 dx*(distance+offset)/distance);
7133 primitive_info[0].point.y=(double) (primitive_info[i].point.y+
7134 dy*(distance+offset)/distance);
7135 for (j=(ssize_t) number_vertices-2; j >= 0; j--)
7137 dx=primitive_info[number_vertices-1].point.x-primitive_info[j].point.x;
7138 dy=primitive_info[number_vertices-1].point.y-primitive_info[j].point.y;
7139 if ((fabs((
double) dx) >= MagickEpsilon) ||
7140 (fabs((
double) dy) >= MagickEpsilon))
7143 distance=hypot((
double) dx,(
double) dy);
7144 primitive_info[number_vertices-1].point.x=(double) (primitive_info[j].point.x+
7145 dx*(distance+offset)/distance);
7146 primitive_info[number_vertices-1].point.y=(double) (primitive_info[j].point.y+
7147 dy*(distance+offset)/distance);
7154 #define MaxStrokePad (6*BezierQuantum+360)
7155 #define CheckPathExtent(pad_p,pad_q) \
7157 if ((pad_p) > MaxBezierCoordinates) \
7158 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7160 if ((ssize_t) (p+(pad_p)) >= (ssize_t) extent_p) \
7162 if (~extent_p < (pad_p)) \
7163 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7166 extent_p+=(pad_p); \
7167 stroke_p=(PointInfo *) ResizeQuantumMemory(stroke_p,extent_p+ \
7168 MaxStrokePad,sizeof(*stroke_p)); \
7171 if ((pad_q) > MaxBezierCoordinates) \
7172 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7174 if ((ssize_t) (q+(pad_q)) >= (ssize_t) extent_q) \
7176 if (~extent_q < (pad_q)) \
7177 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7180 extent_q+=(pad_q); \
7181 stroke_q=(PointInfo *) ResizeQuantumMemory(stroke_q,extent_q+ \
7182 MaxStrokePad,sizeof(*stroke_q)); \
7185 if ((stroke_p == (PointInfo *) NULL) || (stroke_q == (PointInfo *) NULL)) \
7187 if (stroke_p != (PointInfo *) NULL) \
7188 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7189 if (stroke_q != (PointInfo *) NULL) \
7190 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7191 polygon_primitive=(PrimitiveInfo *) \
7192 RelinquishMagickMemory(polygon_primitive); \
7193 (void) ThrowMagickException(exception,GetMagickModule(), \
7194 ResourceLimitError,"MemoryAllocationFailed","`%s'",""); \
7195 return((PrimitiveInfo *) NULL); \
7199 typedef struct _StrokeSegment
7245 inverse_slope = {0.0, 0.0},
7252 number_vertices=primitive_info->coordinates;
7253 polygon_primitive=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7254 number_vertices+2UL,
sizeof(*polygon_primitive));
7257 (void) ThrowMagickException(exception,GetMagickModule(),
7258 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7261 (void) memcpy(polygon_primitive,primitive_info,(
size_t) number_vertices*
7262 sizeof(*polygon_primitive));
7263 offset.x=primitive_info[number_vertices-1].point.x-primitive_info[0].point.x;
7264 offset.y=primitive_info[number_vertices-1].point.y-primitive_info[0].point.y;
7265 closed_path=(fabs(offset.x) < MagickEpsilon) &&
7266 (fabs(offset.y) < MagickEpsilon) ? MagickTrue : MagickFalse;
7267 if (((draw_info->linejoin == RoundJoin) ||
7268 (draw_info->linejoin == MiterJoin)) && (closed_path != MagickFalse))
7270 polygon_primitive[number_vertices]=primitive_info[1];
7273 polygon_primitive[number_vertices].primitive=UndefinedPrimitive;
7279 for (n=1; n < (ssize_t) number_vertices; n++)
7281 dx.p=polygon_primitive[n].point.x-polygon_primitive[0].point.x;
7282 dy.p=polygon_primitive[n].point.y-polygon_primitive[0].point.y;
7283 if ((fabs(dx.p) >= MagickEpsilon) || (fabs(dy.p) >= MagickEpsilon))
7286 if (n == (ssize_t) number_vertices)
7288 if ((draw_info->linecap != RoundCap) || (closed_path != MagickFalse))
7294 sizeof(*stroke_polygon));
7295 stroke_polygon[0]=polygon_primitive[0];
7296 stroke_polygon[0].coordinates=0;
7299 return(stroke_polygon);
7301 n=(ssize_t) number_vertices-1L;
7303 extent_p=2*number_vertices;
7304 extent_q=2*number_vertices;
7305 stroke_p=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_p+MaxStrokePad,
7307 stroke_q=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_q+MaxStrokePad,
7312 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7314 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7316 RelinquishMagickMemory(polygon_primitive);
7317 (void) ThrowMagickException(exception,GetMagickModule(),
7318 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7322 inverse_slope.p=0.0;
7323 if (fabs(dx.p) < MagickEpsilon)
7326 slope.p=dy.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7328 slope.p=dy.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7331 if (fabs(dy.p) < MagickEpsilon)
7334 inverse_slope.p=dx.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7336 inverse_slope.p=dx.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7341 inverse_slope.p=(-1.0*PerceptibleReciprocal(slope.p));
7343 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
7344 miterlimit=(double) (draw_info->miterlimit*draw_info->miterlimit*mid*mid);
7345 if ((draw_info->linecap == SquareCap) && (closed_path == MagickFalse))
7346 (void) TraceSquareLinecap(polygon_primitive,number_vertices,mid);
7347 offset.x=sqrt((
double) (mid*mid/(inverse_slope.p*inverse_slope.p+1.0)));
7348 offset.y=(double) (offset.x*inverse_slope.p);
7349 if ((dy.p*offset.x-dx.p*offset.y) > 0.0)
7351 box_p[0].x=polygon_primitive[0].point.x-offset.x;
7352 box_p[0].y=polygon_primitive[0].point.y-offset.x*inverse_slope.p;
7353 box_p[1].x=polygon_primitive[n].point.x-offset.x;
7354 box_p[1].y=polygon_primitive[n].point.y-offset.x*inverse_slope.p;
7355 box_q[0].x=polygon_primitive[0].point.x+offset.x;
7356 box_q[0].y=polygon_primitive[0].point.y+offset.x*inverse_slope.p;
7357 box_q[1].x=polygon_primitive[n].point.x+offset.x;
7358 box_q[1].y=polygon_primitive[n].point.y+offset.x*inverse_slope.p;
7362 box_p[0].x=polygon_primitive[0].point.x+offset.x;
7363 box_p[0].y=polygon_primitive[0].point.y+offset.y;
7364 box_p[1].x=polygon_primitive[n].point.x+offset.x;
7365 box_p[1].y=polygon_primitive[n].point.y+offset.y;
7366 box_q[0].x=polygon_primitive[0].point.x-offset.x;
7367 box_q[0].y=polygon_primitive[0].point.y-offset.y;
7368 box_q[1].x=polygon_primitive[n].point.x-offset.x;
7369 box_q[1].y=polygon_primitive[n].point.y-offset.y;
7376 stroke_q[p++]=box_q[0];
7377 stroke_p[q++]=box_p[0];
7378 for (i=(ssize_t) n+1; i < (ssize_t) number_vertices; i++)
7383 dx.q=polygon_primitive[i].point.x-polygon_primitive[n].point.x;
7384 dy.q=polygon_primitive[i].point.y-polygon_primitive[n].point.y;
7385 dot_product=dx.q*dx.q+dy.q*dy.q;
7386 if (dot_product < 0.25)
7389 inverse_slope.q=0.0;
7390 if (fabs(dx.q) < MagickEpsilon)
7393 slope.q=dy.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7395 slope.q=dy.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7398 if (fabs(dy.q) < MagickEpsilon)
7401 inverse_slope.q=dx.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7403 inverse_slope.q=dx.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7408 inverse_slope.q=(-1.0*PerceptibleReciprocal(slope.q));
7410 offset.x=sqrt((
double) (mid*mid/(inverse_slope.q*inverse_slope.q+1.0)));
7411 offset.y=(double) (offset.x*inverse_slope.q);
7412 dot_product=dy.q*offset.x-dx.q*offset.y;
7413 if (dot_product > 0.0)
7415 box_p[2].x=polygon_primitive[n].point.x-offset.x;
7416 box_p[2].y=polygon_primitive[n].point.y-offset.y;
7417 box_p[3].x=polygon_primitive[i].point.x-offset.x;
7418 box_p[3].y=polygon_primitive[i].point.y-offset.y;
7419 box_q[2].x=polygon_primitive[n].point.x+offset.x;
7420 box_q[2].y=polygon_primitive[n].point.y+offset.y;
7421 box_q[3].x=polygon_primitive[i].point.x+offset.x;
7422 box_q[3].y=polygon_primitive[i].point.y+offset.y;
7426 box_p[2].x=polygon_primitive[n].point.x+offset.x;
7427 box_p[2].y=polygon_primitive[n].point.y+offset.y;
7428 box_p[3].x=polygon_primitive[i].point.x+offset.x;
7429 box_p[3].y=polygon_primitive[i].point.y+offset.y;
7430 box_q[2].x=polygon_primitive[n].point.x-offset.x;
7431 box_q[2].y=polygon_primitive[n].point.y-offset.y;
7432 box_q[3].x=polygon_primitive[i].point.x-offset.x;
7433 box_q[3].y=polygon_primitive[i].point.y-offset.y;
7435 if (fabs((
double) (slope.p-slope.q)) < MagickEpsilon)
7442 box_p[4].x=(double) ((slope.p*box_p[0].x-box_p[0].y-slope.q*box_p[3].x+
7443 box_p[3].y)/(slope.p-slope.q));
7444 box_p[4].y=(double) (slope.p*(box_p[4].x-box_p[0].x)+box_p[0].y);
7445 box_q[4].x=(double) ((slope.p*box_q[0].x-box_q[0].y-slope.q*box_q[3].x+
7446 box_q[3].y)/(slope.p-slope.q));
7447 box_q[4].y=(double) (slope.p*(box_q[4].x-box_q[0].x)+box_q[0].y);
7449 CheckPathExtent(MaxStrokePad,MaxStrokePad);
7450 dot_product=dx.q*dy.p-dx.p*dy.q;
7451 if (dot_product <= 0.0)
7452 switch (draw_info->linejoin)
7456 stroke_q[q++]=box_q[1];
7457 stroke_q[q++]=box_q[2];
7458 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7459 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7460 if (dot_product <= miterlimit)
7461 stroke_p[p++]=box_p[4];
7464 stroke_p[p++]=box_p[1];
7465 stroke_p[p++]=box_p[2];
7471 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7472 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7473 if (dot_product <= miterlimit)
7475 stroke_q[q++]=box_q[4];
7476 stroke_p[p++]=box_p[4];
7480 stroke_q[q++]=box_q[1];
7481 stroke_q[q++]=box_q[2];
7482 stroke_p[p++]=box_p[1];
7483 stroke_p[p++]=box_p[2];
7489 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7490 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7491 if (dot_product <= miterlimit)
7492 stroke_p[p++]=box_p[4];
7495 stroke_p[p++]=box_p[1];
7496 stroke_p[p++]=box_p[2];
7498 center=polygon_primitive[n].point;
7499 theta.p=atan2(box_q[1].y-center.y,box_q[1].x-center.x);
7500 theta.q=atan2(box_q[2].y-center.y,box_q[2].x-center.x);
7501 if (theta.q < theta.p)
7502 theta.q+=2.0*MagickPI;
7503 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.q-
7504 theta.p)/(2.0*sqrt(PerceptibleReciprocal(mid))))));
7505 CheckPathExtent(MaxStrokePad,arc_segments+MaxStrokePad);
7506 stroke_q[q].x=box_q[1].x;
7507 stroke_q[q].y=box_q[1].y;
7509 for (j=1; j < (ssize_t) arc_segments; j++)
7511 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7512 stroke_q[q].x=(double) (center.x+mid*cos(fmod((
double)
7513 (theta.p+delta_theta),DegreesToRadians(360.0))));
7514 stroke_q[q].y=(double) (center.y+mid*sin(fmod((
double)
7515 (theta.p+delta_theta),DegreesToRadians(360.0))));
7518 stroke_q[q++]=box_q[2];
7525 switch (draw_info->linejoin)
7529 stroke_p[p++]=box_p[1];
7530 stroke_p[p++]=box_p[2];
7531 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7532 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7533 if (dot_product <= miterlimit)
7534 stroke_q[q++]=box_q[4];
7537 stroke_q[q++]=box_q[1];
7538 stroke_q[q++]=box_q[2];
7544 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7545 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7546 if (dot_product <= miterlimit)
7548 stroke_q[q++]=box_q[4];
7549 stroke_p[p++]=box_p[4];
7553 stroke_q[q++]=box_q[1];
7554 stroke_q[q++]=box_q[2];
7555 stroke_p[p++]=box_p[1];
7556 stroke_p[p++]=box_p[2];
7562 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7563 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7564 if (dot_product <= miterlimit)
7565 stroke_q[q++]=box_q[4];
7568 stroke_q[q++]=box_q[1];
7569 stroke_q[q++]=box_q[2];
7571 center=polygon_primitive[n].point;
7572 theta.p=atan2(box_p[1].y-center.y,box_p[1].x-center.x);
7573 theta.q=atan2(box_p[2].y-center.y,box_p[2].x-center.x);
7574 if (theta.p < theta.q)
7575 theta.p+=2.0*MagickPI;
7576 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.p-
7577 theta.q)/(2.0*sqrt((
double) (PerceptibleReciprocal(mid)))))));
7578 CheckPathExtent(arc_segments+MaxStrokePad,MaxStrokePad);
7579 stroke_p[p++]=box_p[1];
7580 for (j=1; j < (ssize_t) arc_segments; j++)
7582 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7583 stroke_p[p].x=(double) (center.x+mid*cos(fmod((
double)
7584 (theta.p+delta_theta),DegreesToRadians(360.0))));
7585 stroke_p[p].y=(double) (center.y+mid*sin(fmod((
double)
7586 (theta.p+delta_theta),DegreesToRadians(360.0))));
7589 stroke_p[p++]=box_p[2];
7596 inverse_slope.p=inverse_slope.q;
7605 stroke_p[p++]=box_p[1];
7606 stroke_q[q++]=box_q[1];
7610 stroke_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7611 (p+q+2UL*closed_path+2UL),
sizeof(*stroke_polygon));
7614 (void) ThrowMagickException(exception,GetMagickModule(),
7615 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7616 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7617 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7620 return(stroke_polygon);
7622 for (i=0; i < (ssize_t) p; i++)
7624 stroke_polygon[i]=polygon_primitive[0];
7625 stroke_polygon[i].point=stroke_p[i];
7627 if (closed_path != MagickFalse)
7629 stroke_polygon[i]=polygon_primitive[0];
7630 stroke_polygon[i].point=stroke_polygon[0].point;
7633 for ( ; i < (ssize_t) (p+q+closed_path); i++)
7635 stroke_polygon[i]=polygon_primitive[0];
7636 stroke_polygon[i].point=stroke_q[p+q+closed_path-(i+1)];
7638 if (closed_path != MagickFalse)
7640 stroke_polygon[i]=polygon_primitive[0];
7641 stroke_polygon[i].point=stroke_polygon[p+closed_path].point;
7644 stroke_polygon[i]=polygon_primitive[0];
7645 stroke_polygon[i].point=stroke_polygon[0].point;
7647 stroke_polygon[i].primitive=UndefinedPrimitive;
7648 stroke_polygon[0].coordinates=(size_t) (p+q+2*closed_path+1);
7649 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7650 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7651 polygon_primitive=(
PrimitiveInfo *) RelinquishMagickMemory(polygon_primitive);
7652 return(stroke_polygon);