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;
1211 extent[2].x=(
double) source->columns;
1212 extent[2].y=(double) source->rows;
1214 extent[3].y=(
double) source->rows;
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);
1244 inverse_affine=InverseAffineMatrix(affine);
1247 if (edge.y2 > (image->rows-1.0))
1248 edge.y2=image->rows-1.0;
1249 GetMagickPixelPacket(image,&zero);
1250 exception=(&image->exception);
1251 start=CastDoubleToLong(ceil(edge.y1-0.5));
1252 stop=CastDoubleToLong(floor(edge.y2+0.5));
1253 source_view=AcquireVirtualCacheView(source,exception);
1254 image_view=AcquireAuthenticCacheView(image,exception);
1255 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1256 #pragma omp parallel for schedule(static) shared(status) \
1257 magick_number_threads(source,image,stop-start,1)
1259 for (y=start; y <= stop; y++)
1262 *magick_restrict indexes;
1281 if (status == MagickFalse)
1283 inverse_edge=AffineEdge(source,&inverse_affine,(
double) y,&edge);
1284 if (inverse_edge.x2 < inverse_edge.x1)
1286 if (inverse_edge.x1 < 0.0)
1287 inverse_edge.x1=0.0;
1288 if (inverse_edge.x2 > image->columns-1.0)
1289 inverse_edge.x2=image->columns-1.0;
1290 q=GetCacheViewAuthenticPixels(image_view,CastDoubleToLong(
1291 ceil(inverse_edge.x1-0.5)),y,(
size_t) CastDoubleToLong(floor(
1292 inverse_edge.x2+0.5)-ceil(inverse_edge.x1-0.5)+1),1,exception);
1295 indexes=GetCacheViewAuthenticIndexQueue(image_view);
1299 for (x=CastDoubleToLong(ceil(inverse_edge.x1-0.5));
1300 x <= CastDoubleToLong(floor(inverse_edge.x2+0.5)); x++)
1302 point.x=(double) x*inverse_affine.sx+y*inverse_affine.ry+
1304 point.y=(
double) x*inverse_affine.rx+y*inverse_affine.sy+
1306 status=InterpolateMagickPixelPacket(source,source_view,
1307 UndefinedInterpolatePixel,point.x,point.y,&pixel,exception);
1308 if (status == MagickFalse)
1310 SetMagickPixelPacket(image,q,indexes+x_offset,&composite);
1311 MagickPixelCompositeOver(&pixel,pixel.opacity,&composite,
1312 composite.opacity,&composite);
1313 SetPixelPacket(image,&composite,q,indexes+x_offset);
1317 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1320 source_view=DestroyCacheView(source_view);
1321 image_view=DestroyCacheView(image_view);
1354 static MagickBooleanType DrawBoundingRectangles(
Image *image,
1383 (void) memset(primitive_info,0,
sizeof(primitive_info));
1384 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1385 status=QueryColorDatabase(
"#0000",&clone_info->fill,&image->exception);
1386 if (status == MagickFalse)
1388 clone_info=DestroyDrawInfo(clone_info);
1389 return(MagickFalse);
1393 if (clone_info->density != (
char *) NULL)
1401 flags=ParseGeometry(clone_info->density,&geometry_info);
1402 if ((flags & RhoValue) != 0)
1403 resolution.x=geometry_info.rho;
1404 resolution.y=resolution.x;
1405 if ((flags & SigmaValue) != 0)
1406 resolution.y=geometry_info.sigma;
1408 mid=(resolution.x/96.0)*ExpandAffine(&clone_info->affine)*
1409 clone_info->stroke_width/2.0;
1416 bounds=polygon_info->edges[0].bounds;
1417 for (i=1; i < (ssize_t) polygon_info->number_edges; i++)
1419 if (polygon_info->edges[i].bounds.x1 < (
double) bounds.x1)
1420 bounds.x1=polygon_info->edges[i].bounds.x1;
1421 if (polygon_info->edges[i].bounds.y1 < (
double) bounds.y1)
1422 bounds.y1=polygon_info->edges[i].bounds.y1;
1423 if (polygon_info->edges[i].bounds.x2 > (
double) bounds.x2)
1424 bounds.x2=polygon_info->edges[i].bounds.x2;
1425 if (polygon_info->edges[i].bounds.y2 > (
double) bounds.y2)
1426 bounds.y2=polygon_info->edges[i].bounds.y2;
1429 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double)
1430 image->columns ? (
double) image->columns-1 : bounds.x1;
1432 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double)
1433 image->rows ? (
double) image->rows-1 : bounds.y1;
1435 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double)
1436 image->columns ? (
double) image->columns-1 : bounds.x2;
1438 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double)
1439 image->rows ? (
double) image->rows-1 : bounds.y2;
1440 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
1442 if (polygon_info->edges[i].direction != 0)
1443 status=QueryColorDatabase(
"#f00",&clone_info->stroke,
1446 status=QueryColorDatabase(
"#0f0",&clone_info->stroke,
1448 if (status == MagickFalse)
1450 start.x=(double) (polygon_info->edges[i].bounds.x1-mid);
1451 start.y=(double) (polygon_info->edges[i].bounds.y1-mid);
1452 end.x=(double) (polygon_info->edges[i].bounds.x2+mid);
1453 end.y=(double) (polygon_info->edges[i].bounds.y2+mid);
1454 primitive_info[0].primitive=RectanglePrimitive;
1455 status&=TraceRectangle(primitive_info,start,end);
1456 primitive_info[0].method=ReplaceMethod;
1457 coordinates=(ssize_t) primitive_info[0].coordinates;
1458 primitive_info[coordinates].primitive=UndefinedPrimitive;
1459 status=DrawPrimitive(image,clone_info,primitive_info);
1460 if (status == MagickFalse)
1463 if (i < (ssize_t) polygon_info->number_edges)
1465 clone_info=DestroyDrawInfo(clone_info);
1466 return(status == 0 ? MagickFalse : MagickTrue);
1469 status=QueryColorDatabase(
"#00f",&clone_info->stroke,&image->exception);
1470 if (status == MagickFalse)
1472 clone_info=DestroyDrawInfo(clone_info);
1473 return(MagickFalse);
1475 start.x=(double) (bounds.x1-mid);
1476 start.y=(double) (bounds.y1-mid);
1477 end.x=(double) (bounds.x2+mid);
1478 end.y=(double) (bounds.y2+mid);
1479 primitive_info[0].primitive=RectanglePrimitive;
1480 status&=TraceRectangle(primitive_info,start,end);
1481 primitive_info[0].method=ReplaceMethod;
1482 coordinates=(ssize_t) primitive_info[0].coordinates;
1483 primitive_info[coordinates].primitive=UndefinedPrimitive;
1484 status=DrawPrimitive(image,clone_info,primitive_info);
1485 clone_info=DestroyDrawInfo(clone_info);
1486 return(status == 0 ? MagickFalse : MagickTrue);
1516 MagickExport MagickBooleanType DrawClipPath(
Image *image,
1517 const DrawInfo *draw_info,
const char *
id)
1528 clip_path=GetImageArtifact(image,
id);
1529 if (clip_path == (
const char *) NULL)
1530 return(MagickFalse);
1531 clipping_mask=DrawClippingMask(image,draw_info,draw_info->clip_mask,clip_path,
1533 if (clipping_mask == (
Image *) NULL)
1534 return(MagickFalse);
1535 status=SetImageClipMask(image,clipping_mask);
1536 clipping_mask=DestroyImage(clipping_mask);
1573 const char *
id,
const char *clip_path,
ExceptionInfo *exception)
1587 assert(image != (
Image *) NULL);
1588 assert(image->signature == MagickCoreSignature);
1589 assert(draw_info != (
const DrawInfo *) NULL);
1590 if (IsEventLogging() != MagickFalse)
1591 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1592 clip_mask=AcquireImage((
const ImageInfo *) NULL);
1593 status=SetImageExtent(clip_mask,image->columns,image->rows);
1594 if (status == MagickFalse)
1595 return(DestroyImage(clip_mask));
1596 status=SetImageClipMask(image,(
Image *) NULL);
1597 status=QueryColorCompliance(
"#0000",AllCompliance,
1598 &clip_mask->background_color,exception);
1599 clip_mask->background_color.opacity=(Quantum) TransparentOpacity;
1600 status=SetImageBackgroundColor(clip_mask);
1601 if (draw_info->debug != MagickFalse)
1602 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin clip-path %s",
1604 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1605 (void) CloneString(&clone_info->primitive,clip_path);
1606 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1608 if (clone_info->clip_mask != (
char *) NULL)
1609 clone_info->clip_mask=DestroyString(clone_info->clip_mask);
1610 (void) QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1612 clone_info->stroke_width=0.0;
1613 clone_info->opacity=OpaqueOpacity;
1614 clone_info->clip_path=MagickTrue;
1615 status=RenderMVGContent(clip_mask,clone_info,0);
1616 clone_info=DestroyDrawInfo(clone_info);
1617 status&=SeparateImageChannel(clip_mask,TrueAlphaChannel);
1618 if (draw_info->compliance != SVGCompliance)
1619 status&=NegateImage(clip_mask,MagickFalse);
1620 if (status == MagickFalse)
1621 clip_mask=DestroyImage(clip_mask);
1622 if (draw_info->debug != MagickFalse)
1623 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end clip-path");
1659 const char *
id,
const char *mask_path,
ExceptionInfo *exception)
1673 assert(image != (
Image *) NULL);
1674 assert(image->signature == MagickCoreSignature);
1675 assert(draw_info != (
const DrawInfo *) NULL);
1676 if (IsEventLogging() != MagickFalse)
1677 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1678 composite_mask=AcquireImage((
const ImageInfo *) NULL);
1679 status=SetImageExtent(composite_mask,image->columns,image->rows);
1680 if (status == MagickFalse)
1681 return(DestroyImage(composite_mask));
1682 status=SetImageMask(image,(
Image *) NULL);
1683 status=QueryColorCompliance(
"#0000",AllCompliance,
1684 &composite_mask->background_color,exception);
1685 composite_mask->background_color.opacity=(Quantum) TransparentOpacity;
1686 (void) SetImageBackgroundColor(composite_mask);
1687 if (draw_info->debug != MagickFalse)
1688 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin mask-path %s",
1690 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1691 (void) CloneString(&clone_info->primitive,mask_path);
1692 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1694 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1696 clone_info->stroke_width=0.0;
1697 clone_info->opacity=OpaqueOpacity;
1698 status=RenderMVGContent(composite_mask,clone_info,0);
1699 clone_info=DestroyDrawInfo(clone_info);
1700 status&=SeparateImageChannel(composite_mask,TrueAlphaChannel);
1701 status&=NegateImage(composite_mask,MagickFalse);
1702 if (status == MagickFalse)
1703 composite_mask=DestroyImage(composite_mask);
1704 if (draw_info->debug != MagickFalse)
1705 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end mask-path");
1706 return(composite_mask);
1738 static MagickBooleanType DrawDashPolygon(
const DrawInfo *draw_info,
1769 assert(draw_info != (
const DrawInfo *) NULL);
1770 if (draw_info->debug != MagickFalse)
1771 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-dash");
1772 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
1773 number_vertices=(size_t) i;
1774 dash_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
1775 (2UL*number_vertices+32UL),
sizeof(*dash_polygon));
1778 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1779 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
1780 return(MagickFalse);
1782 (void) memset(dash_polygon,0,(2UL*number_vertices+32UL)*
1783 sizeof(*dash_polygon));
1784 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1785 clone_info->miterlimit=0;
1786 dash_polygon[0]=primitive_info[0];
1787 scale=ExpandAffine(&draw_info->affine);
1788 length=scale*draw_info->dash_pattern[0];
1789 offset=fabs(draw_info->dash_offset) >= MagickEpsilon ?
1790 scale*draw_info->dash_offset : 0.0;
1792 for (n=0; offset > 0.0; j=0)
1794 if (draw_info->dash_pattern[n] <= 0.0)
1796 length=scale*(draw_info->dash_pattern[n]+(n == 0 ? -0.5 : 0.5));
1797 if (offset > length)
1801 length=scale*draw_info->dash_pattern[n];
1804 if (offset < length)
1816 for (i=1; (i < (ssize_t) number_vertices) && (length >= 0.0); i++)
1818 dx=primitive_info[i].point.x-primitive_info[i-1].point.x;
1819 dy=primitive_info[i].point.y-primitive_info[i-1].point.y;
1820 maximum_length=hypot(dx,dy);
1821 if (maximum_length > (
double) (MaxBezierCoordinates >> 2))
1823 if (fabs(length) < MagickEpsilon)
1825 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1827 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1829 length=scale*draw_info->dash_pattern[n];
1831 for (total_length=0.0; (length >= 0.0) && (maximum_length >= (total_length+length)); )
1833 total_length+=length;
1834 if ((n & 0x01) != 0)
1836 dash_polygon[0]=primitive_info[0];
1837 dash_polygon[0].point.x=(double) (primitive_info[i-1].point.x+dx*
1838 total_length*PerceptibleReciprocal(maximum_length));
1839 dash_polygon[0].point.y=(double) (primitive_info[i-1].point.y+dy*
1840 total_length*PerceptibleReciprocal(maximum_length));
1845 if ((j+1) > (ssize_t) number_vertices)
1847 dash_polygon[j]=primitive_info[i-1];
1848 dash_polygon[j].point.x=(double) (primitive_info[i-1].point.x+dx*
1849 total_length*PerceptibleReciprocal(maximum_length));
1850 dash_polygon[j].point.y=(double) (primitive_info[i-1].point.y+dy*
1851 total_length*PerceptibleReciprocal(maximum_length));
1852 dash_polygon[j].coordinates=1;
1854 dash_polygon[0].coordinates=(size_t) j;
1855 dash_polygon[j].primitive=UndefinedPrimitive;
1856 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1857 if (status == MagickFalse)
1860 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1862 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1864 length=scale*draw_info->dash_pattern[n];
1866 length-=(maximum_length-total_length);
1867 if ((n & 0x01) != 0)
1869 dash_polygon[j]=primitive_info[i];
1870 dash_polygon[j].coordinates=1;
1873 if ((status != MagickFalse) && (total_length < maximum_length) &&
1874 ((n & 0x01) == 0) && (j > 1))
1876 dash_polygon[j]=primitive_info[i-1];
1877 dash_polygon[j].point.x+=MagickEpsilon;
1878 dash_polygon[j].point.y+=MagickEpsilon;
1879 dash_polygon[j].coordinates=1;
1881 dash_polygon[0].coordinates=(size_t) j;
1882 dash_polygon[j].primitive=UndefinedPrimitive;
1883 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1885 dash_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(dash_polygon);
1886 clone_info=DestroyDrawInfo(clone_info);
1887 if (draw_info->debug != MagickFalse)
1888 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-dash");
1889 return(status != 0 ? MagickTrue : MagickFalse);
1918 static inline double GetStopColorOffset(
const GradientInfo *gradient,
1919 const ssize_t x,
const ssize_t y)
1921 switch (gradient->type)
1923 case UndefinedGradient:
1924 case LinearGradient:
1939 gradient_vector=(&gradient->gradient_vector);
1940 p.x=gradient_vector->x2-gradient_vector->x1;
1941 p.y=gradient_vector->y2-gradient_vector->y1;
1942 q.x=(double) x-gradient_vector->x1;
1943 q.y=(
double) y-gradient_vector->y1;
1944 length=sqrt(q.x*q.x+q.y*q.y);
1945 gamma=sqrt(p.x*p.x+p.y*p.y)*length;
1946 gamma=PerceptibleReciprocal(gamma);
1947 scale=p.x*q.x+p.y*q.y;
1948 offset=gamma*scale*length;
1951 case RadialGradient:
1956 if (gradient->spread == RepeatSpread)
1958 v.x=(double) x-gradient->center.x;
1959 v.y=(
double) y-gradient->center.y;
1960 return(sqrt(v.x*v.x+v.y*v.y));
1962 v.x=(double) (((x-gradient->center.x)*cos(DegreesToRadians(
1963 gradient->angle)))+((y-gradient->center.y)*sin(DegreesToRadians(
1964 gradient->angle))))*PerceptibleReciprocal(gradient->radii.x);
1965 v.y=(double) (((x-gradient->center.x)*sin(DegreesToRadians(
1966 gradient->angle)))-((y-gradient->center.y)*cos(DegreesToRadians(
1967 gradient->angle))))*PerceptibleReciprocal(gradient->radii.y);
1968 return(sqrt(v.x*v.x+v.y*v.y));
1974 MagickExport MagickBooleanType DrawGradientImage(
Image *image,
2010 assert(image != (
Image *) NULL);
2011 assert(image->signature == MagickCoreSignature);
2012 assert(draw_info != (
const DrawInfo *) NULL);
2013 if (IsEventLogging() != MagickFalse)
2014 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2015 gradient=(&draw_info->gradient);
2016 gradient_vector=(&gradient->gradient_vector);
2017 point.x=gradient_vector->x2-gradient_vector->x1;
2018 point.y=gradient_vector->y2-gradient_vector->y1;
2019 length=sqrt(point.x*point.x+point.y*point.y);
2020 bounding_box=gradient->bounding_box;
2022 exception=(&image->exception);
2023 GetMagickPixelPacket(image,&zero);
2024 image_view=AcquireAuthenticCacheView(image,exception);
2025 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2026 #pragma omp parallel for schedule(static) shared(status) \
2027 magick_number_threads(image,image,bounding_box.height-bounding_box.y,1)
2029 for (y=bounding_box.y; y < (ssize_t) bounding_box.height; y++)
2040 *magick_restrict indexes;
2052 if (status == MagickFalse)
2054 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2060 indexes=GetCacheViewAuthenticIndexQueue(image_view);
2063 offset=GetStopColorOffset(gradient,0,y);
2064 if (gradient->type != RadialGradient)
2065 offset*=PerceptibleReciprocal(length);
2066 for (x=bounding_box.x; x < (ssize_t) bounding_box.width; x++)
2068 SetMagickPixelPacket(image,q,indexes+x,&pixel);
2069 switch (gradient->spread)
2071 case UndefinedSpread:
2074 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2075 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2077 offset=GetStopColorOffset(gradient,x,y);
2078 if (gradient->type != RadialGradient)
2079 offset*=PerceptibleReciprocal(length);
2081 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2082 if (offset < gradient->stops[i].offset)
2084 if ((offset < 0.0) || (i == 0))
2085 composite=gradient->stops[0].color;
2087 if ((offset > 1.0) || (i == (ssize_t) gradient->number_stops))
2088 composite=gradient->stops[gradient->number_stops-1].color;
2093 alpha=(offset-gradient->stops[i].offset)/
2094 (gradient->stops[j].offset-gradient->stops[i].offset);
2095 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2096 &gradient->stops[j].color,alpha,&composite);
2102 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2103 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2105 offset=GetStopColorOffset(gradient,x,y);
2106 if (gradient->type != RadialGradient)
2107 offset*=PerceptibleReciprocal(length);
2111 if ((ssize_t) fmod(offset,2.0) == 0)
2112 offset=fmod(offset,1.0);
2114 offset=1.0-fmod(offset,1.0);
2115 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2116 if (offset < gradient->stops[i].offset)
2119 composite=gradient->stops[0].color;
2121 if (i == (ssize_t) gradient->number_stops)
2122 composite=gradient->stops[gradient->number_stops-1].color;
2127 alpha=(offset-gradient->stops[i].offset)/
2128 (gradient->stops[j].offset-gradient->stops[i].offset);
2129 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2130 &gradient->stops[j].color,alpha,&composite);
2142 antialias=MagickFalse;
2144 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2145 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2147 offset=GetStopColorOffset(gradient,x,y);
2148 if (gradient->type == LinearGradient)
2150 repeat=fmod(offset,length);
2152 repeat=length-fmod(-repeat,length);
2154 repeat=fmod(offset,length);
2155 antialias=(repeat < length) && ((repeat+1.0) > length) ?
2156 MagickTrue : MagickFalse;
2157 offset=PerceptibleReciprocal(length)*repeat;
2161 repeat=fmod(offset,(
double) gradient->radius);
2163 repeat=gradient->radius-fmod(-repeat,
2164 (
double) gradient->radius);
2166 repeat=fmod(offset,(
double) gradient->radius);
2167 antialias=repeat+1.0 > gradient->radius ? MagickTrue :
2169 offset=repeat*PerceptibleReciprocal(gradient->radius);
2172 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2173 if (offset < gradient->stops[i].offset)
2176 composite=gradient->stops[0].color;
2178 if (i == (ssize_t) gradient->number_stops)
2179 composite=gradient->stops[gradient->number_stops-1].color;
2184 alpha=(offset-gradient->stops[i].offset)/
2185 (gradient->stops[j].offset-gradient->stops[i].offset);
2186 if (antialias != MagickFalse)
2188 if (gradient->type == LinearGradient)
2189 alpha=length-repeat;
2191 alpha=gradient->radius-repeat;
2193 j=(ssize_t) gradient->number_stops-1L;
2195 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2196 &gradient->stops[j].color,alpha,&composite);
2201 MagickPixelCompositeOver(&composite,composite.opacity,&pixel,
2202 pixel.opacity,&pixel);
2203 SetPixelPacket(image,&pixel,q,indexes+x);
2206 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2209 image_view=DestroyCacheView(image_view);
2242 static MagickBooleanType CheckPrimitiveExtent(
MVGInfo *mvg_info,
2246 **text = (
char **) NULL;
2260 quantum=
sizeof(**mvg_info->primitive_info);
2261 extent=(double) mvg_info->offset+pad+(PrimitiveExtentPad+1)*quantum;
2262 if (extent <= (
double) *mvg_info->extent)
2264 if ((extent >= (
double) MAGICK_SSIZE_MAX) || (IsNaN(extent) != 0))
2265 return(MagickFalse);
2266 if (mvg_info->offset > 0)
2268 text=(
char **) AcquireQuantumMemory(mvg_info->offset,
sizeof(*text));
2269 if (text == (
char **) NULL)
2270 return(MagickFalse);
2271 for (i=0; i < mvg_info->offset; i++)
2272 text[i]=(*mvg_info->primitive_info)[i].text;
2274 *mvg_info->primitive_info=(
PrimitiveInfo *) ResizeQuantumMemory(
2275 *mvg_info->primitive_info,(
size_t) (extent+1),quantum);
2278 if (text != (
char **) NULL)
2279 text=(
char **) RelinquishMagickMemory(text);
2280 *mvg_info->extent=(size_t) extent;
2281 for (i=mvg_info->offset+1; i <= (ssize_t) extent; i++)
2283 (*mvg_info->primitive_info)[i].primitive=UndefinedPrimitive;
2284 (*mvg_info->primitive_info)[i].text=(
char *) NULL;
2291 if (text != (
char **) NULL)
2293 for (i=0; i < mvg_info->offset; i++)
2294 if (text[i] != (
char *) NULL)
2295 text[i]=DestroyString(text[i]);
2296 text=(
char **) RelinquishMagickMemory(text);
2298 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
2299 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
2300 *mvg_info->primitive_info=(
PrimitiveInfo *) AcquireCriticalMemory((
size_t)
2301 (PrimitiveExtentPad+1)*quantum);
2302 (void) memset(*mvg_info->primitive_info,0,(
size_t) ((PrimitiveExtentPad+1)*
2304 *mvg_info->extent=1;
2306 return(MagickFalse);
2309 static inline double GetDrawValue(
const char *magick_restrict
string,
2310 char **magick_restrict sentinal)
2313 **magick_restrict q;
2319 value=InterpretLocaleValue(
string,q);
2324 static int MVGMacroCompare(
const void *target,
const void *source)
2330 p=(
const char *) target;
2331 q=(
const char *) source;
2332 return(strcmp(p,q));
2353 if (primitive == (
const char *) NULL)
2355 macros=NewSplayTree(MVGMacroCompare,RelinquishMagickMemory,
2356 RelinquishMagickMemory);
2357 macro=AcquireString(primitive);
2358 token=AcquireString(primitive);
2359 extent=strlen(token)+MagickPathExtent;
2360 for (q=primitive; *q !=
'\0'; )
2362 if (GetNextToken(q,&q,extent,token) < 1)
2366 if (LocaleCompare(
"push",token) == 0)
2372 (void) GetNextToken(q,&q,extent,token);
2376 name[MagickPathExtent];
2387 (void) GetNextToken(q,&q,extent,token);
2390 (void) CopyMagickString(name,token,MagickPathExtent);
2392 for (p=q; *p !=
'\0'; )
2394 if (GetNextToken(p,&p,extent,token) < 1)
2398 if (LocaleCompare(token,
"pop") == 0)
2400 end=p-strlen(token)-1;
2403 if (LocaleCompare(token,
"push") == 0)
2405 if ((n == 0) && (end > start))
2410 (void) GetNextToken(p,&p,extent,token);
2411 (void) CopyMagickString(macro,start,(
size_t) (end-start));
2412 (void) AddValueToSplayTree(macros,ConstantString(name),
2413 ConstantString(macro));
2420 token=DestroyString(token);
2421 macro=DestroyString(macro);
2425 static inline MagickBooleanType IsPoint(
const char *point)
2433 value=GetDrawValue(point,&p);
2434 return((fabs(value) < MagickEpsilon) && (p == point) ? MagickFalse :
2438 static inline MagickBooleanType TracePoint(
PrimitiveInfo *primitive_info,
2441 primitive_info->coordinates=1;
2442 primitive_info->closed_subpath=MagickFalse;
2443 primitive_info->point=point;
2447 static MagickBooleanType RenderMVGContent(
Image *image,
2448 const DrawInfo *draw_info,
const size_t depth)
2450 #define RenderImageTag "Render/Image"
2457 key[2*MaxTextExtent],
2458 keyword[MaxTextExtent],
2459 geometry[MaxTextExtent],
2460 name[MaxTextExtent],
2462 pattern[MaxTextExtent],
2528 assert(image != (
Image *) NULL);
2529 assert(image->signature == MagickCoreSignature);
2530 assert(draw_info != (
DrawInfo *) NULL);
2531 assert(draw_info->signature == MagickCoreSignature);
2532 if (IsEventLogging() != MagickFalse)
2533 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2534 if (depth > MagickMaxRecursionDepth)
2535 ThrowBinaryImageException(DrawError,
"VectorGraphicsNestedTooDeeply",
2537 if ((draw_info->primitive == (
char *) NULL) ||
2538 (*draw_info->primitive ==
'\0'))
2539 return(MagickFalse);
2540 if (draw_info->debug != MagickFalse)
2541 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"begin draw-image");
2542 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
2543 return(MagickFalse);
2544 if (image->matte == MagickFalse)
2546 status=SetImageAlphaChannel(image,OpaqueAlphaChannel);
2547 if (status == MagickFalse)
2548 return(MagickFalse);
2550 primitive=(
char *) NULL;
2551 if ((*draw_info->primitive ==
'@') && (strlen(draw_info->primitive) > 1) &&
2552 (*(draw_info->primitive+1) !=
'-') && (depth == 0))
2553 primitive=FileToString(draw_info->primitive+1,~0UL,&image->exception);
2555 primitive=AcquireString(draw_info->primitive);
2556 if (primitive == (
char *) NULL)
2557 return(MagickFalse);
2558 primitive_extent=(double) strlen(primitive);
2559 (void) SetImageArtifact(image,
"mvg:vector-graphics",primitive);
2564 graphic_context=(
DrawInfo **) AcquireMagickMemory(
sizeof(*graphic_context));
2565 if (graphic_context == (
DrawInfo **) NULL)
2567 primitive=DestroyString(primitive);
2568 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2571 number_points=(size_t) PrimitiveExtentPad;
2572 primitive_info=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
2573 (number_points+1),
sizeof(*primitive_info));
2576 primitive=DestroyString(primitive);
2577 for ( ; n >= 0; n--)
2578 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
2579 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
2580 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2583 (void) memset(primitive_info,0,(
size_t) (number_points+1)*
2584 sizeof(*primitive_info));
2585 (void) memset(&mvg_info,0,
sizeof(mvg_info));
2586 mvg_info.primitive_info=(&primitive_info);
2587 mvg_info.extent=(&number_points);
2588 mvg_info.exception=(&image->exception);
2589 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
2590 graphic_context[n]->viewbox=image->page;
2591 if ((image->page.width == 0) || (image->page.height == 0))
2593 graphic_context[n]->viewbox.width=image->columns;
2594 graphic_context[n]->viewbox.height=image->rows;
2596 token=AcquireString(primitive);
2597 extent=strlen(token)+MaxTextExtent;
2601 macros=GetMVGMacros(primitive);
2602 status=QueryColorDatabase(
"#000000",&start_color,&image->exception);
2603 for (q=primitive; *q !=
'\0'; )
2608 if (GetNextToken(q,&q,MaxTextExtent,keyword) < 1)
2610 if (*keyword ==
'\0')
2612 if (*keyword ==
'#')
2617 while ((*q !=
'\n') && (*q !=
'\0'))
2621 p=q-strlen(keyword)-1;
2622 primitive_type=UndefinedPrimitive;
2623 current=graphic_context[n]->affine;
2624 GetAffineMatrix(&affine);
2633 if (LocaleCompare(
"affine",keyword) == 0)
2635 (void) GetNextToken(q,&q,extent,token);
2636 affine.sx=GetDrawValue(token,&next_token);
2637 if (token == next_token)
2638 ThrowPointExpectedException(image,token);
2639 (void) GetNextToken(q,&q,extent,token);
2641 (void) GetNextToken(q,&q,extent,token);
2642 affine.rx=GetDrawValue(token,&next_token);
2643 if (token == next_token)
2644 ThrowPointExpectedException(image,token);
2645 (void) GetNextToken(q,&q,extent,token);
2647 (void) GetNextToken(q,&q,extent,token);
2648 affine.ry=GetDrawValue(token,&next_token);
2649 if (token == next_token)
2650 ThrowPointExpectedException(image,token);
2651 (void) GetNextToken(q,&q,extent,token);
2653 (void) GetNextToken(q,&q,extent,token);
2654 affine.sy=GetDrawValue(token,&next_token);
2655 if (token == next_token)
2656 ThrowPointExpectedException(image,token);
2657 (void) GetNextToken(q,&q,extent,token);
2659 (void) GetNextToken(q,&q,extent,token);
2660 affine.tx=GetDrawValue(token,&next_token);
2661 if (token == next_token)
2662 ThrowPointExpectedException(image,token);
2663 (void) GetNextToken(q,&q,extent,token);
2665 (void) GetNextToken(q,&q,extent,token);
2666 affine.ty=GetDrawValue(token,&next_token);
2667 if (token == next_token)
2668 ThrowPointExpectedException(image,token);
2671 if (LocaleCompare(
"arc",keyword) == 0)
2673 primitive_type=ArcPrimitive;
2682 if (LocaleCompare(
"bezier",keyword) == 0)
2684 primitive_type=BezierPrimitive;
2687 if (LocaleCompare(
"border-color",keyword) == 0)
2689 (void) GetNextToken(q,&q,extent,token);
2690 status&=QueryColorDatabase(token,&graphic_context[n]->border_color,
2700 if (LocaleCompare(
"class",keyword) == 0)
2705 (void) GetNextToken(q,&q,extent,token);
2706 if ((*token ==
'\0') || (*token ==
';'))
2711 if (LocaleCompare(token,graphic_context[n]->
id) == 0)
2713 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2714 if ((graphic_context[n]->render != MagickFalse) &&
2715 (mvg_class != (
const char *) NULL) && (p > primitive))
2726 offset=(ssize_t) (p-primitive);
2727 elements=AcquireString(primitive);
2728 elements[offset]=
'\0';
2729 (void) ConcatenateString(&elements,mvg_class);
2730 (void) ConcatenateString(&elements,
"\n");
2731 (void) ConcatenateString(&elements,q);
2732 primitive=DestroyString(primitive);
2738 if (LocaleCompare(
"clip-path",keyword) == 0)
2746 (void) GetNextToken(q,&q,extent,token);
2752 (void) CloneString(&graphic_context[n]->clip_mask,token);
2753 clip_path=(
const char *) GetValueFromSplayTree(macros,token);
2754 if (clip_path != (
const char *) NULL)
2756 if (graphic_context[n]->clipping_mask != (
Image *) NULL)
2757 graphic_context[n]->clipping_mask=
2758 DestroyImage(graphic_context[n]->clipping_mask);
2759 graphic_context[n]->clipping_mask=DrawClippingMask(image,
2760 graphic_context[n],token,clip_path,&image->exception);
2761 if (graphic_context[n]->compliance != SVGCompliance)
2766 clip_path=(
const char *) GetValueFromSplayTree(macros,
2767 graphic_context[n]->clip_mask);
2768 if (clip_path != (
const char *) NULL)
2769 (
void) SetImageArtifact(image,
2770 graphic_context[n]->clip_mask,clip_path);
2771 status&=DrawClipPath(image,graphic_context[n],
2772 graphic_context[n]->clip_mask);
2777 if (LocaleCompare(
"clip-rule",keyword) == 0)
2782 (void) GetNextToken(q,&q,extent,token);
2783 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2785 if (fill_rule == -1)
2790 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2793 if (LocaleCompare(
"clip-units",keyword) == 0)
2798 (void) GetNextToken(q,&q,extent,token);
2799 clip_units=ParseCommandOption(MagickClipPathOptions,MagickFalse,
2801 if (clip_units == -1)
2806 graphic_context[n]->clip_units=(ClipPathUnits) clip_units;
2807 if (clip_units == ObjectBoundingBox)
2809 GetAffineMatrix(¤t);
2810 affine.sx=draw_info->bounds.x2;
2811 affine.sy=draw_info->bounds.y2;
2812 affine.tx=draw_info->bounds.x1;
2813 affine.ty=draw_info->bounds.y1;
2818 if (LocaleCompare(
"circle",keyword) == 0)
2820 primitive_type=CirclePrimitive;
2823 if (LocaleCompare(
"color",keyword) == 0)
2825 primitive_type=ColorPrimitive;
2828 if (LocaleCompare(
"compliance",keyword) == 0)
2834 (void) GetNextToken(q,&q,extent,token);
2835 graphic_context[n]->compliance=(ComplianceType) ParseCommandOption(
2836 MagickComplianceOptions,MagickFalse,token);
2839 if (LocaleCompare(
"currentColor",keyword) == 0)
2841 (void) GetNextToken(q,&q,extent,token);
2850 if (LocaleCompare(
"decorate",keyword) == 0)
2855 (void) GetNextToken(q,&q,extent,token);
2856 decorate=ParseCommandOption(MagickDecorateOptions,MagickFalse,
2863 graphic_context[n]->decorate=(DecorationType) decorate;
2866 if (LocaleCompare(
"density",keyword) == 0)
2868 (void) GetNextToken(q,&q,extent,token);
2869 (void) CloneString(&graphic_context[n]->density,token);
2872 if (LocaleCompare(
"direction",keyword) == 0)
2877 (void) GetNextToken(q,&q,extent,token);
2878 direction=ParseCommandOption(MagickDirectionOptions,MagickFalse,
2880 if (direction == -1)
2883 graphic_context[n]->direction=(DirectionType) direction;
2892 if (LocaleCompare(
"ellipse",keyword) == 0)
2894 primitive_type=EllipsePrimitive;
2897 if (LocaleCompare(
"encoding",keyword) == 0)
2899 (void) GetNextToken(q,&q,extent,token);
2900 (void) CloneString(&graphic_context[n]->encoding,token);
2909 if (LocaleCompare(
"fill",keyword) == 0)
2914 (void) GetNextToken(q,&q,extent,token);
2915 if (graphic_context[n]->clip_path != MagickFalse)
2917 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2918 if (mvg_class != (
const char *) NULL)
2920 (void) DrawPatternPath(image,draw_info,mvg_class,
2921 &graphic_context[n]->fill_pattern);
2924 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
2925 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
2927 (void) DrawPatternPath(image,draw_info,token,
2928 &graphic_context[n]->fill_pattern);
2931 status&=QueryColorDatabase(token,&graphic_context[n]->fill,
2933 if (graphic_context[n]->fill_opacity != OpaqueOpacity)
2934 graphic_context[n]->fill.opacity=ClampToQuantum(
2935 graphic_context[n]->fill_opacity);
2938 if (LocaleCompare(
"fill-opacity",keyword) == 0)
2943 (void) GetNextToken(q,&q,extent,token);
2944 if (graphic_context[n]->clip_path != MagickFalse)
2946 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
2947 opacity=MagickMin(MagickMax(factor*
2948 GetDrawValue(token,&next_token),0.0),1.0);
2949 if (token == next_token)
2950 ThrowPointExpectedException(image,token);
2951 if (graphic_context[n]->compliance == SVGCompliance)
2952 graphic_context[n]->fill_opacity*=(1.0-opacity);
2954 graphic_context[n]->fill_opacity=(QuantumRange-
2955 graphic_context[n]->fill_opacity)*(1.0-opacity);
2956 if (graphic_context[n]->fill.opacity != TransparentOpacity)
2957 graphic_context[n]->fill.opacity=(Quantum)
2958 graphic_context[n]->fill_opacity;
2960 graphic_context[n]->fill.opacity=ClampToQuantum(QuantumRange*
2964 if (LocaleCompare(
"fill-rule",keyword) == 0)
2969 (void) GetNextToken(q,&q,extent,token);
2970 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2972 if (fill_rule == -1)
2977 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2980 if (LocaleCompare(
"font",keyword) == 0)
2982 (void) GetNextToken(q,&q,extent,token);
2983 (void) CloneString(&graphic_context[n]->font,token);
2984 if (LocaleCompare(
"none",token) == 0)
2985 graphic_context[n]->font=(
char *) RelinquishMagickMemory(
2986 graphic_context[n]->font);
2989 if (LocaleCompare(
"font-family",keyword) == 0)
2991 (void) GetNextToken(q,&q,extent,token);
2992 (void) CloneString(&graphic_context[n]->family,token);
2995 if (LocaleCompare(
"font-size",keyword) == 0)
2997 (void) GetNextToken(q,&q,extent,token);
2998 graphic_context[n]->pointsize=GetDrawValue(token,&next_token);
2999 if (token == next_token)
3000 ThrowPointExpectedException(image,token);
3003 if (LocaleCompare(
"font-stretch",keyword) == 0)
3008 (void) GetNextToken(q,&q,extent,token);
3009 stretch=ParseCommandOption(MagickStretchOptions,MagickFalse,token);
3015 graphic_context[n]->stretch=(StretchType) stretch;
3018 if (LocaleCompare(
"font-style",keyword) == 0)
3023 (void) GetNextToken(q,&q,extent,token);
3024 style=ParseCommandOption(MagickStyleOptions,MagickFalse,token);
3030 graphic_context[n]->style=(StyleType) style;
3033 if (LocaleCompare(
"font-weight",keyword) == 0)
3038 (void) GetNextToken(q,&q,extent,token);
3039 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,token);
3041 weight=(ssize_t) StringToUnsignedLong(token);
3042 graphic_context[n]->weight=(size_t) weight;
3051 if (LocaleCompare(
"gradient-units",keyword) == 0)
3053 (void) GetNextToken(q,&q,extent,token);
3056 if (LocaleCompare(
"gravity",keyword) == 0)
3061 (void) GetNextToken(q,&q,extent,token);
3062 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,token);
3068 graphic_context[n]->gravity=(GravityType) gravity;
3077 if (LocaleCompare(
"image",keyword) == 0)
3082 primitive_type=ImagePrimitive;
3083 (void) GetNextToken(q,&q,extent,token);
3084 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,token);
3090 graphic_context[n]->compose=(CompositeOperator) compose;
3093 if (LocaleCompare(
"interline-spacing",keyword) == 0)
3095 (void) GetNextToken(q,&q,extent,token);
3096 graphic_context[n]->interline_spacing=GetDrawValue(token,
3098 if (token == next_token)
3099 ThrowPointExpectedException(image,token);
3102 if (LocaleCompare(
"interword-spacing",keyword) == 0)
3104 (void) GetNextToken(q,&q,extent,token);
3105 graphic_context[n]->interword_spacing=GetDrawValue(token,
3107 if (token == next_token)
3108 ThrowPointExpectedException(image,token);
3117 if (LocaleCompare(
"kerning",keyword) == 0)
3119 (void) GetNextToken(q,&q,extent,token);
3120 graphic_context[n]->kerning=GetDrawValue(token,&next_token);
3121 if (token == next_token)
3122 ThrowPointExpectedException(image,token);
3131 if (LocaleCompare(
"letter-spacing",keyword) == 0)
3133 (void) GetNextToken(q,&q,extent,token);
3134 if (IsPoint(token) == MagickFalse)
3136 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3137 clone_info->text=AcquireString(
" ");
3138 status&=GetTypeMetrics(image,clone_info,&metrics);
3139 graphic_context[n]->kerning=metrics.width*
3140 GetDrawValue(token,&next_token);
3141 clone_info=DestroyDrawInfo(clone_info);
3142 if (token == next_token)
3143 ThrowPointExpectedException(image,token);
3146 if (LocaleCompare(
"line",keyword) == 0)
3148 primitive_type=LinePrimitive;
3157 if (LocaleCompare(
"mask",keyword) == 0)
3165 (void) GetNextToken(q,&q,extent,token);
3166 mask_path=(
const char *) GetValueFromSplayTree(macros,token);
3167 if (mask_path != (
const char *) NULL)
3169 if (graphic_context[n]->composite_mask != (
Image *) NULL)
3170 graphic_context[n]->composite_mask=
3171 DestroyImage(graphic_context[n]->composite_mask);
3172 graphic_context[n]->composite_mask=DrawCompositeMask(image,
3173 graphic_context[n],token,mask_path,&image->exception);
3174 if (graphic_context[n]->compliance != SVGCompliance)
3175 status=SetImageMask(image,graphic_context[n]->composite_mask);
3179 if (LocaleCompare(
"matte",keyword) == 0)
3181 primitive_type=MattePrimitive;
3190 if (LocaleCompare(
"offset",keyword) == 0)
3192 (void) GetNextToken(q,&q,extent,token);
3195 if (LocaleCompare(
"opacity",keyword) == 0)
3200 (void) GetNextToken(q,&q,extent,token);
3201 if (graphic_context[n]->clip_path != MagickFalse)
3203 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3204 opacity=MagickMin(MagickMax(factor*
3205 GetDrawValue(token,&next_token),0.0),1.0);
3206 if (token == next_token)
3207 ThrowPointExpectedException(image,token);
3208 if (graphic_context[n]->compliance == SVGCompliance)
3210 graphic_context[n]->fill_opacity*=(1.0-opacity);
3211 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3215 graphic_context[n]->fill_opacity=(QuantumRange-
3216 graphic_context[n]->fill_opacity)*(1.0-opacity);
3217 graphic_context[n]->stroke_opacity=(QuantumRange-
3218 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3228 if (LocaleCompare(
"path",keyword) == 0)
3230 primitive_type=PathPrimitive;
3233 if (LocaleCompare(
"point",keyword) == 0)
3235 primitive_type=PointPrimitive;
3238 if (LocaleCompare(
"polyline",keyword) == 0)
3240 primitive_type=PolylinePrimitive;
3243 if (LocaleCompare(
"polygon",keyword) == 0)
3245 primitive_type=PolygonPrimitive;
3248 if (LocaleCompare(
"pop",keyword) == 0)
3250 if (GetNextToken(q,&q,extent,token) < 1)
3252 if (LocaleCompare(
"class",token) == 0)
3254 if (LocaleCompare(
"clip-path",token) == 0)
3256 if (LocaleCompare(
"defs",token) == 0)
3259 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3263 if (LocaleCompare(
"gradient",token) == 0)
3265 if (LocaleCompare(
"graphic-context",token) == 0)
3269 (void) ThrowMagickException(&image->exception,
3270 GetMagickModule(),DrawError,
3271 "UnbalancedGraphicContextPushPop",
"`%s'",token);
3276 if ((graphic_context[n]->clip_mask != (
char *) NULL) &&
3277 (graphic_context[n]->compliance != SVGCompliance))
3278 if (LocaleCompare(graphic_context[n]->clip_mask,
3279 graphic_context[n-1]->clip_mask) != 0)
3280 status=SetImageClipMask(image,(
Image *) NULL);
3281 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
3285 if (LocaleCompare(
"mask",token) == 0)
3287 if (LocaleCompare(
"pattern",token) == 0)
3289 if (LocaleCompare(
"symbol",token) == 0)
3292 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3299 if (LocaleCompare(
"push",keyword) == 0)
3301 if (GetNextToken(q,&q,extent,token) < 1)
3303 if (LocaleCompare(
"class",token) == 0)
3308 for (p=q; *q !=
'\0'; )
3310 if (GetNextToken(q,&q,extent,token) < 1)
3312 if (LocaleCompare(token,
"pop") != 0)
3314 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3315 if (LocaleCompare(token,
"class") != 0)
3319 (void) GetNextToken(q,&q,extent,token);
3322 if (LocaleCompare(
"clip-path",token) == 0)
3324 (void) GetNextToken(q,&q,extent,token);
3325 for (p=q; *q !=
'\0'; )
3327 if (GetNextToken(q,&q,extent,token) < 1)
3329 if (LocaleCompare(token,
"pop") != 0)
3331 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3332 if (LocaleCompare(token,
"clip-path") != 0)
3336 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3341 (void) GetNextToken(q,&q,extent,token);
3344 if (LocaleCompare(
"defs",token) == 0)
3347 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3351 if (LocaleCompare(
"gradient",token) == 0)
3354 key[2*MaxTextExtent],
3355 name[MaxTextExtent],
3356 type[MaxTextExtent];
3361 (void) GetNextToken(q,&q,extent,token);
3362 (void) CopyMagickString(name,token,MaxTextExtent);
3363 (void) GetNextToken(q,&q,extent,token);
3364 (void) CopyMagickString(type,token,MaxTextExtent);
3365 (void) GetNextToken(q,&q,extent,token);
3366 segment.x1=GetDrawValue(token,&next_token);
3367 if (token == next_token)
3368 ThrowPointExpectedException(image,token);
3369 (void) GetNextToken(q,&q,extent,token);
3371 (void) GetNextToken(q,&q,extent,token);
3372 segment.y1=GetDrawValue(token,&next_token);
3373 if (token == next_token)
3374 ThrowPointExpectedException(image,token);
3375 (void) GetNextToken(q,&q,extent,token);
3377 (void) GetNextToken(q,&q,extent,token);
3378 segment.x2=GetDrawValue(token,&next_token);
3379 if (token == next_token)
3380 ThrowPointExpectedException(image,token);
3381 (void) GetNextToken(q,&q,extent,token);
3383 (void) GetNextToken(q,&q,extent,token);
3384 segment.y2=GetDrawValue(token,&next_token);
3385 if (token == next_token)
3386 ThrowPointExpectedException(image,token);
3387 if (LocaleCompare(type,
"radial") == 0)
3389 (void) GetNextToken(q,&q,extent,token);
3391 (void) GetNextToken(q,&q,extent,token);
3393 for (p=q; *q !=
'\0'; )
3395 if (GetNextToken(q,&q,extent,token) < 1)
3397 if (LocaleCompare(token,
"pop") != 0)
3399 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3400 if (LocaleCompare(token,
"gradient") != 0)
3404 if ((q == (
char *) NULL) || (*q ==
'\0') ||
3405 (p == (
char *) NULL) || ((q-4) < p))
3410 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3411 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
3412 graphic_context[n]->affine.ry*segment.y1+
3413 graphic_context[n]->affine.tx;
3414 bounds.y1=graphic_context[n]->affine.rx*segment.x1+
3415 graphic_context[n]->affine.sy*segment.y1+
3416 graphic_context[n]->affine.ty;
3417 bounds.x2=graphic_context[n]->affine.sx*segment.x2+
3418 graphic_context[n]->affine.ry*segment.y2+
3419 graphic_context[n]->affine.tx;
3420 bounds.y2=graphic_context[n]->affine.rx*segment.x2+
3421 graphic_context[n]->affine.sy*segment.y2+
3422 graphic_context[n]->affine.ty;
3423 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3424 (void) SetImageArtifact(image,key,token);
3425 (void) FormatLocaleString(key,MaxTextExtent,
"%s-type",name);
3426 (void) SetImageArtifact(image,key,type);
3427 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3428 (void) FormatLocaleString(geometry,MaxTextExtent,
3429 "%gx%g%+.15g%+.15g",
3430 MagickMax(fabs(bounds.x2-bounds.x1+1.0),1.0),
3431 MagickMax(fabs(bounds.y2-bounds.y1+1.0),1.0),
3432 bounds.x1,bounds.y1);
3433 (void) SetImageArtifact(image,key,geometry);
3434 (void) GetNextToken(q,&q,extent,token);
3437 if (LocaleCompare(
"graphic-context",token) == 0)
3440 graphic_context=(
DrawInfo **) ResizeQuantumMemory(
3441 graphic_context,(
size_t) (n+1),
sizeof(*graphic_context));
3442 if (graphic_context == (
DrawInfo **) NULL)
3444 (void) ThrowMagickException(&image->exception,
3445 GetMagickModule(),ResourceLimitError,
3446 "MemoryAllocationFailed",
"`%s'",image->filename);
3449 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,
3450 graphic_context[n-1]);
3453 (void) GetNextToken(q,&q,extent,token);
3454 (void) CloneString(&graphic_context[n]->
id,token);
3458 if (LocaleCompare(
"mask",token) == 0)
3460 (void) GetNextToken(q,&q,extent,token);
3463 if (LocaleCompare(
"pattern",token) == 0)
3468 (void) GetNextToken(q,&q,extent,token);
3469 (void) CopyMagickString(name,token,MaxTextExtent);
3470 (void) GetNextToken(q,&q,extent,token);
3471 bounds.x=CastDoubleToLong(ceil(GetDrawValue(token,
3473 if (token == next_token)
3474 ThrowPointExpectedException(image,token);
3475 (void) GetNextToken(q,&q,extent,token);
3477 (void) GetNextToken(q,&q,extent,token);
3478 bounds.y=CastDoubleToLong(ceil(GetDrawValue(token,
3480 if (token == next_token)
3481 ThrowPointExpectedException(image,token);
3482 (void) GetNextToken(q,&q,extent,token);
3484 (void) GetNextToken(q,&q,extent,token);
3485 bounds.width=(size_t) floor(GetDrawValue(token,&next_token)+
3487 if (token == next_token)
3488 ThrowPointExpectedException(image,token);
3489 (void) GetNextToken(q,&q,extent,token);
3491 (void) GetNextToken(q,&q,extent,token);
3492 bounds.height=(size_t) floor(GetDrawValue(token,&next_token)+
3494 if (token == next_token)
3495 ThrowPointExpectedException(image,token);
3496 for (p=q; *q !=
'\0'; )
3498 if (GetNextToken(q,&q,extent,token) < 1)
3500 if (LocaleCompare(token,
"pop") != 0)
3502 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3503 if (LocaleCompare(token,
"pattern") != 0)
3507 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3512 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3513 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3514 (void) SetImageArtifact(image,key,token);
3515 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3516 (void) FormatLocaleString(geometry,MaxTextExtent,
3517 "%.20gx%.20g%+.20g%+.20g",(
double) bounds.width,(double)
3518 bounds.height,(
double) bounds.x,(double) bounds.y);
3519 (void) SetImageArtifact(image,key,geometry);
3520 (void) GetNextToken(q,&q,extent,token);
3523 if (LocaleCompare(
"symbol",token) == 0)
3526 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3539 if (LocaleCompare(
"rectangle",keyword) == 0)
3541 primitive_type=RectanglePrimitive;
3544 if (LocaleCompare(
"rotate",keyword) == 0)
3546 (void) GetNextToken(q,&q,extent,token);
3547 angle=GetDrawValue(token,&next_token);
3548 if (token == next_token)
3549 ThrowPointExpectedException(image,token);
3550 affine.sx=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3551 affine.rx=sin(DegreesToRadians(fmod((
double) angle,360.0)));
3552 affine.ry=(-sin(DegreesToRadians(fmod((
double) angle,360.0))));
3553 affine.sy=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3556 if (LocaleCompare(
"roundRectangle",keyword) == 0)
3558 primitive_type=RoundRectanglePrimitive;
3567 if (LocaleCompare(
"scale",keyword) == 0)
3569 (void) GetNextToken(q,&q,extent,token);
3570 affine.sx=GetDrawValue(token,&next_token);
3571 if (token == next_token)
3572 ThrowPointExpectedException(image,token);
3573 (void) GetNextToken(q,&q,extent,token);
3575 (void) GetNextToken(q,&q,extent,token);
3576 affine.sy=GetDrawValue(token,&next_token);
3577 if (token == next_token)
3578 ThrowPointExpectedException(image,token);
3581 if (LocaleCompare(
"skewX",keyword) == 0)
3583 (void) GetNextToken(q,&q,extent,token);
3584 angle=GetDrawValue(token,&next_token);
3585 if (token == next_token)
3586 ThrowPointExpectedException(image,token);
3587 affine.ry=sin(DegreesToRadians(angle));
3590 if (LocaleCompare(
"skewY",keyword) == 0)
3592 (void) GetNextToken(q,&q,extent,token);
3593 angle=GetDrawValue(token,&next_token);
3594 if (token == next_token)
3595 ThrowPointExpectedException(image,token);
3596 affine.rx=(-tan(DegreesToRadians(angle)/2.0));
3599 if (LocaleCompare(
"stop-color",keyword) == 0)
3607 (void) GetNextToken(q,&q,extent,token);
3608 status&=QueryColorDatabase(token,&stop_color,&image->exception);
3609 type=LinearGradient;
3610 if (draw_info->gradient.type == RadialGradient)
3611 type=RadialGradient;
3612 (void) GradientImage(image,type,PadSpread,&start_color,&stop_color);
3613 start_color=stop_color;
3614 (void) GetNextToken(q,&q,extent,token);
3617 if (LocaleCompare(
"stroke",keyword) == 0)
3622 (void) GetNextToken(q,&q,extent,token);
3623 if (graphic_context[n]->clip_path != MagickFalse)
3625 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
3626 if (mvg_class != (
const char *) NULL)
3628 (void) DrawPatternPath(image,draw_info,mvg_class,
3629 &graphic_context[n]->stroke_pattern);
3632 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
3633 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
3635 (void) DrawPatternPath(image,draw_info,token,
3636 &graphic_context[n]->stroke_pattern);
3639 status&=QueryColorDatabase(token,&graphic_context[n]->stroke,
3641 if (graphic_context[n]->stroke_opacity != OpaqueOpacity)
3642 graphic_context[n]->stroke.opacity=ClampToQuantum(
3643 graphic_context[n]->stroke_opacity);
3646 if (LocaleCompare(
"stroke-antialias",keyword) == 0)
3648 (void) GetNextToken(q,&q,extent,token);
3649 graphic_context[n]->stroke_antialias=StringToLong(token) != 0 ?
3650 MagickTrue : MagickFalse;
3653 if (LocaleCompare(
"stroke-dasharray",keyword) == 0)
3655 if (graphic_context[n]->dash_pattern != (
double *) NULL)
3656 graphic_context[n]->dash_pattern=(
double *)
3657 RelinquishMagickMemory(graphic_context[n]->dash_pattern);
3658 if (IsPoint(q) != MagickFalse)
3664 (void) GetNextToken(p,&p,extent,token);
3666 (void) GetNextToken(p,&p,extent,token);
3667 for (x=0; IsPoint(token) != MagickFalse; x++)
3669 (void) GetNextToken(p,&p,extent,token);
3671 (void) GetNextToken(p,&p,extent,token);
3673 graphic_context[n]->dash_pattern=(
double *)
3674 AcquireQuantumMemory((
size_t) (2*x+2),
3675 sizeof(*graphic_context[n]->dash_pattern));
3676 if (graphic_context[n]->dash_pattern == (
double *) NULL)
3678 (void) ThrowMagickException(&image->exception,
3679 GetMagickModule(),ResourceLimitError,
3680 "MemoryAllocationFailed",
"`%s'",image->filename);
3684 (void) memset(graphic_context[n]->dash_pattern,0,(
size_t)
3685 (2*x+2)*
sizeof(*graphic_context[n]->dash_pattern));
3686 for (j=0; j < x; j++)
3688 (void) GetNextToken(q,&q,extent,token);
3690 (void) GetNextToken(q,&q,extent,token);
3691 graphic_context[n]->dash_pattern[j]=GetDrawValue(token,
3693 if (token == next_token)
3694 ThrowPointExpectedException(image,token);
3695 if (graphic_context[n]->dash_pattern[j] <= 0.0)
3698 if ((x & 0x01) != 0)
3699 for ( ; j < (2*x); j++)
3700 graphic_context[n]->dash_pattern[j]=
3701 graphic_context[n]->dash_pattern[j-x];
3702 graphic_context[n]->dash_pattern[j]=0.0;
3705 (void) GetNextToken(q,&q,extent,token);
3708 if (LocaleCompare(
"stroke-dashoffset",keyword) == 0)
3710 (void) GetNextToken(q,&q,extent,token);
3711 graphic_context[n]->dash_offset=GetDrawValue(token,&next_token);
3712 if (token == next_token)
3713 ThrowPointExpectedException(image,token);
3716 if (LocaleCompare(
"stroke-linecap",keyword) == 0)
3721 (void) GetNextToken(q,&q,extent,token);
3722 linecap=ParseCommandOption(MagickLineCapOptions,MagickFalse,token);
3728 graphic_context[n]->linecap=(LineCap) linecap;
3731 if (LocaleCompare(
"stroke-linejoin",keyword) == 0)
3736 (void) GetNextToken(q,&q,extent,token);
3737 linejoin=ParseCommandOption(MagickLineJoinOptions,MagickFalse,
3744 graphic_context[n]->linejoin=(LineJoin) linejoin;
3747 if (LocaleCompare(
"stroke-miterlimit",keyword) == 0)
3749 (void) GetNextToken(q,&q,extent,token);
3750 graphic_context[n]->miterlimit=StringToUnsignedLong(token);
3753 if (LocaleCompare(
"stroke-opacity",keyword) == 0)
3758 (void) GetNextToken(q,&q,extent,token);
3759 if (graphic_context[n]->clip_path != MagickFalse)
3761 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3762 opacity=MagickMin(MagickMax(factor*
3763 GetDrawValue(token,&next_token),0.0),1.0);
3764 if (token == next_token)
3765 ThrowPointExpectedException(image,token);
3766 if (graphic_context[n]->compliance == SVGCompliance)
3767 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3769 graphic_context[n]->stroke_opacity=(QuantumRange-
3770 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3771 if (graphic_context[n]->stroke.opacity != TransparentOpacity)
3772 graphic_context[n]->stroke.opacity=(Quantum)
3773 graphic_context[n]->stroke_opacity;
3775 graphic_context[n]->stroke.opacity=ClampToQuantum(QuantumRange*
3779 if (LocaleCompare(
"stroke-width",keyword) == 0)
3781 (void) GetNextToken(q,&q,extent,token);
3782 if (graphic_context[n]->clip_path != MagickFalse)
3784 graphic_context[n]->stroke_width=GetDrawValue(token,&next_token);
3785 if ((token == next_token) ||
3786 (graphic_context[n]->stroke_width < 0.0))
3787 ThrowPointExpectedException(image,token);
3796 if (LocaleCompare(
"text",keyword) == 0)
3798 primitive_type=TextPrimitive;
3802 if (LocaleCompare(
"text-align",keyword) == 0)
3807 (void) GetNextToken(q,&q,extent,token);
3808 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3814 graphic_context[n]->align=(AlignType) align;
3817 if (LocaleCompare(
"text-anchor",keyword) == 0)
3822 (void) GetNextToken(q,&q,extent,token);
3823 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3829 graphic_context[n]->align=(AlignType) align;
3832 if (LocaleCompare(
"text-antialias",keyword) == 0)
3834 (void) GetNextToken(q,&q,extent,token);
3835 graphic_context[n]->text_antialias=StringToLong(token) != 0 ?
3836 MagickTrue : MagickFalse;
3839 if (LocaleCompare(
"text-undercolor",keyword) == 0)
3841 (void) GetNextToken(q,&q,extent,token);
3842 status&=QueryColorDatabase(token,&graphic_context[n]->undercolor,
3846 if (LocaleCompare(
"translate",keyword) == 0)
3848 (void) GetNextToken(q,&q,extent,token);
3849 affine.tx=GetDrawValue(token,&next_token);
3850 if (token == next_token)
3851 ThrowPointExpectedException(image,token);
3852 (void) GetNextToken(q,&q,extent,token);
3854 (void) GetNextToken(q,&q,extent,token);
3855 affine.ty=GetDrawValue(token,&next_token);
3856 if (token == next_token)
3857 ThrowPointExpectedException(image,token);
3866 if (LocaleCompare(
"use",keyword) == 0)
3874 (void) GetNextToken(q,&q,extent,token);
3875 use=(
const char *) GetValueFromSplayTree(macros,token);
3876 if (use != (
const char *) NULL)
3878 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3879 (void) CloneString(&clone_info->primitive,use);
3880 status=RenderMVGContent(image,clone_info,depth+1);
3881 clone_info=DestroyDrawInfo(clone_info);
3891 if (LocaleCompare(
"viewbox",keyword) == 0)
3893 (void) GetNextToken(q,&q,extent,token);
3894 graphic_context[n]->viewbox.x=CastDoubleToLong(ceil(
3895 GetDrawValue(token,&next_token)-0.5));
3896 if (token == next_token)
3897 ThrowPointExpectedException(image,token);
3898 (void) GetNextToken(q,&q,extent,token);
3900 (void) GetNextToken(q,&q,extent,token);
3901 graphic_context[n]->viewbox.y=CastDoubleToLong(ceil(
3902 GetDrawValue(token,&next_token)-0.5));
3903 if (token == next_token)
3904 ThrowPointExpectedException(image,token);
3905 (void) GetNextToken(q,&q,extent,token);
3907 (void) GetNextToken(q,&q,extent,token);
3908 graphic_context[n]->viewbox.width=(size_t) floor(GetDrawValue(
3909 token,&next_token)+0.5);
3910 if (token == next_token)
3911 ThrowPointExpectedException(image,token);
3912 (void) GetNextToken(q,&q,extent,token);
3914 (void) GetNextToken(q,&q,extent,token);
3915 graphic_context[n]->viewbox.height=(size_t) floor(GetDrawValue(
3916 token,&next_token)+0.5);
3917 if (token == next_token)
3918 ThrowPointExpectedException(image,token);
3927 if (LocaleCompare(
"word-spacing",keyword) == 0)
3929 (void) GetNextToken(q,&q,extent,token);
3930 graphic_context[n]->interword_spacing=GetDrawValue(token,
3932 if (token == next_token)
3933 ThrowPointExpectedException(image,token);
3945 if (status == MagickFalse)
3947 if ((fabs(affine.sx-1.0) >= MagickEpsilon) ||
3948 (fabs(affine.rx) >= MagickEpsilon) || (fabs(affine.ry) >= MagickEpsilon) ||
3949 (fabs(affine.sy-1.0) >= MagickEpsilon) ||
3950 (fabs(affine.tx) >= MagickEpsilon) || (fabs(affine.ty) >= MagickEpsilon))
3952 graphic_context[n]->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
3953 graphic_context[n]->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
3954 graphic_context[n]->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
3955 graphic_context[n]->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
3956 graphic_context[n]->affine.tx=current.sx*affine.tx+current.ry*affine.ty+
3958 graphic_context[n]->affine.ty=current.rx*affine.tx+current.sy*affine.ty+
3961 if (primitive_type == UndefinedPrimitive)
3963 if ((draw_info->debug != MagickFalse) && (q > p))
3964 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int)
3971 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
3972 if (primitive_info[i].text != (
char *) NULL)
3973 primitive_info[i].text=DestroyString(primitive_info[i].text);
3977 primitive_info[0].point.x=0.0;
3978 primitive_info[0].point.y=0.0;
3979 primitive_info[0].coordinates=0;
3980 primitive_info[0].method=FloodfillMethod;
3981 primitive_info[0].closed_subpath=MagickFalse;
3982 for (x=0; *q !=
'\0'; x++)
3987 if (IsPoint(q) == MagickFalse)
3989 (void) GetNextToken(q,&q,extent,token);
3990 point.x=GetDrawValue(token,&next_token);
3991 if (token == next_token)
3992 ThrowPointExpectedException(image,token);
3993 (void) GetNextToken(q,&q,extent,token);
3995 (void) GetNextToken(q,&q,extent,token);
3996 point.y=GetDrawValue(token,&next_token);
3997 if (token == next_token)
3998 ThrowPointExpectedException(image,token);
3999 (void) GetNextToken(q,(
const char **) NULL,extent,token);
4001 (void) GetNextToken(q,&q,extent,token);
4002 primitive_info[i].primitive=primitive_type;
4003 primitive_info[i].point=point;
4004 primitive_info[i].coordinates=0;
4005 primitive_info[i].method=FloodfillMethod;
4006 primitive_info[i].closed_subpath=MagickFalse;
4009 if (i < (ssize_t) number_points)
4011 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4012 primitive_info=(*mvg_info.primitive_info);
4014 if (status == MagickFalse)
4016 if (primitive_info[j].text != (
char *) NULL)
4017 primitive_info[j].text=DestroyString(primitive_info[j].text);
4018 primitive_info[j].primitive=primitive_type;
4019 primitive_info[j].coordinates=(size_t) x;
4020 primitive_info[j].method=FloodfillMethod;
4021 primitive_info[j].closed_subpath=MagickFalse;
4025 bounds.x1=primitive_info[j].point.x;
4026 bounds.y1=primitive_info[j].point.y;
4027 bounds.x2=primitive_info[j].point.x;
4028 bounds.y2=primitive_info[j].point.y;
4029 for (k=1; k < (ssize_t) primitive_info[j].coordinates; k++)
4031 point=primitive_info[j+k].point;
4032 if (point.x < bounds.x1)
4034 if (point.y < bounds.y1)
4036 if (point.x > bounds.x2)
4038 if (point.y > bounds.y2)
4044 coordinates=(double) primitive_info[j].coordinates;
4045 switch (primitive_type)
4047 case RectanglePrimitive:
4052 case RoundRectanglePrimitive:
4059 alpha=bounds.x2-bounds.x1;
4060 beta=bounds.y2-bounds.y1;
4061 radius=hypot(alpha,beta);
4063 coordinates+=2.0*((size_t) ceil((
double) MagickPI*radius))+6.0*
4064 BezierQuantum+360.0;
4067 case BezierPrimitive:
4069 coordinates=(BezierQuantum*(double) primitive_info[j].coordinates);
4078 (void) GetNextToken(q,&q,extent,token);
4081 for (s=token; *s !=
'\0'; s=t)
4086 value=GetDrawValue(s,&t);
4095 for (s=token; *s !=
'\0'; s++)
4096 if (strspn(s,
"AaCcQqSsTt") != 0)
4097 coordinates+=(20.0*BezierQuantum)+360.0;
4103 if (status == MagickFalse)
4105 if (((
size_t) (i+coordinates)) >= number_points)
4110 number_points+=coordinates+1;
4111 if (number_points < (
size_t) coordinates)
4113 (void) ThrowMagickException(&image->exception,GetMagickModule(),
4114 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
4119 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4120 primitive_info=(*mvg_info.primitive_info);
4122 status&=CheckPrimitiveExtent(&mvg_info,PrimitiveExtentPad);
4123 primitive_info=(*mvg_info.primitive_info);
4124 if (status == MagickFalse)
4127 switch (primitive_type)
4129 case PointPrimitive:
4132 if (primitive_info[j].coordinates != 1)
4137 status&=TracePoint(primitive_info+j,primitive_info[j].point);
4138 primitive_info=(*mvg_info.primitive_info);
4139 i=(ssize_t) (j+primitive_info[j].coordinates);
4144 if (primitive_info[j].coordinates != 2)
4149 status&=TraceLine(primitive_info+j,primitive_info[j].point,
4150 primitive_info[j+1].point);
4151 primitive_info=(*mvg_info.primitive_info);
4152 i=(ssize_t) (j+primitive_info[j].coordinates);
4155 case RectanglePrimitive:
4157 if (primitive_info[j].coordinates != 2)
4162 status&=TraceRectangle(primitive_info+j,primitive_info[j].point,
4163 primitive_info[j+1].point);
4164 primitive_info=(*mvg_info.primitive_info);
4165 i=(ssize_t) (j+primitive_info[j].coordinates);
4168 case RoundRectanglePrimitive:
4170 if (primitive_info[j].coordinates != 3)
4175 if ((primitive_info[j+2].point.x < 0.0) ||
4176 (primitive_info[j+2].point.y < 0.0))
4181 if ((primitive_info[j+1].point.x-primitive_info[j].point.x) < 0.0)
4186 if ((primitive_info[j+1].point.y-primitive_info[j].point.y) < 0.0)
4191 status&=TraceRoundRectangle(&mvg_info,primitive_info[j].point,
4192 primitive_info[j+1].point,primitive_info[j+2].point);
4193 primitive_info=(*mvg_info.primitive_info);
4194 i=(ssize_t) (j+primitive_info[j].coordinates);
4199 if (primitive_info[j].coordinates != 3)
4204 status&=TraceArc(&mvg_info,primitive_info[j].point,
4205 primitive_info[j+1].point,primitive_info[j+2].point);
4206 primitive_info=(*mvg_info.primitive_info);
4207 i=(ssize_t) (j+primitive_info[j].coordinates);
4210 case EllipsePrimitive:
4212 if (primitive_info[j].coordinates != 3)
4217 if ((primitive_info[j+1].point.x < 0.0) ||
4218 (primitive_info[j+1].point.y < 0.0))
4223 status&=TraceEllipse(&mvg_info,primitive_info[j].point,
4224 primitive_info[j+1].point,primitive_info[j+2].point);
4225 primitive_info=(*mvg_info.primitive_info);
4226 i=(ssize_t) (j+primitive_info[j].coordinates);
4229 case CirclePrimitive:
4231 if (primitive_info[j].coordinates != 2)
4236 status&=TraceCircle(&mvg_info,primitive_info[j].point,
4237 primitive_info[j+1].point);
4238 primitive_info=(*mvg_info.primitive_info);
4239 i=(ssize_t) (j+primitive_info[j].coordinates);
4242 case PolylinePrimitive:
4244 if (primitive_info[j].coordinates < 1)
4251 case PolygonPrimitive:
4253 if (primitive_info[j].coordinates < 3)
4258 primitive_info[i]=primitive_info[j];
4259 primitive_info[i].coordinates=0;
4260 primitive_info[j].coordinates++;
4261 primitive_info[j].closed_subpath=MagickTrue;
4265 case BezierPrimitive:
4267 if (primitive_info[j].coordinates < 3)
4272 status&=TraceBezier(&mvg_info,primitive_info[j].coordinates);
4273 primitive_info=(*mvg_info.primitive_info);
4274 i=(ssize_t) (j+primitive_info[j].coordinates);
4279 coordinates=(double) TracePath(image,&mvg_info,token);
4280 primitive_info=(*mvg_info.primitive_info);
4281 if (coordinates < 0.0)
4286 i=(ssize_t) (j+coordinates);
4289 case ColorPrimitive:
4290 case MattePrimitive:
4295 if (primitive_info[j].coordinates != 1)
4300 (void) GetNextToken(q,&q,extent,token);
4301 method=ParseCommandOption(MagickMethodOptions,MagickFalse,token);
4307 primitive_info[j].method=(PaintMethod) method;
4313 geometry[MagickPathExtent];
4315 if (primitive_info[j].coordinates != 1)
4321 (void) GetNextToken(q,&q,extent,token);
4322 (void) CloneString(&primitive_info[j].text,token);
4326 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
4327 if ((fabs(mvg_info.point.x-primitive_info->point.x) < MagickEpsilon) &&
4328 (fabs(mvg_info.point.y-primitive_info->point.y) < MagickEpsilon))
4330 mvg_info.point=primitive_info->point;
4331 primitive_info->point.x+=cursor;
4335 mvg_info.point=primitive_info->point;
4338 (void) FormatLocaleString(geometry,MagickPathExtent,
"%+f%+f",
4339 primitive_info->point.x,primitive_info->point.y);
4340 clone_info->render=MagickFalse;
4341 clone_info->text=AcquireString(token);
4342 status&=GetTypeMetrics(image,clone_info,&metrics);
4343 clone_info=DestroyDrawInfo(clone_info);
4344 cursor+=metrics.width;
4345 if (graphic_context[n]->compliance != SVGCompliance)
4349 case ImagePrimitive:
4351 if (primitive_info[j].coordinates != 2)
4356 (void) GetNextToken(q,&q,extent,token);
4357 (void) CloneString(&primitive_info[j].text,token);
4364 primitive_info[i].primitive=UndefinedPrimitive;
4365 if ((draw_info->debug != MagickFalse) && (q > p))
4366 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int) (q-p),p);
4370 status&=CheckPrimitiveExtent(&mvg_info,ExpandAffine(
4371 &graphic_context[n]->affine));
4372 primitive_info=(*mvg_info.primitive_info);
4375 status&=CheckPrimitiveExtent(&mvg_info,(
double)
4376 graphic_context[n]->stroke_width);
4377 primitive_info=(*mvg_info.primitive_info);
4385 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4387 point=primitive_info[i].point;
4388 primitive_info[i].point.x=graphic_context[n]->affine.sx*point.x+
4389 graphic_context[n]->affine.ry*point.y+graphic_context[n]->affine.tx;
4390 primitive_info[i].point.y=graphic_context[n]->affine.rx*point.x+
4391 graphic_context[n]->affine.sy*point.y+graphic_context[n]->affine.ty;
4392 point=primitive_info[i].point;
4393 if (point.x < graphic_context[n]->bounds.x1)
4394 graphic_context[n]->bounds.x1=point.x;
4395 if (point.y < graphic_context[n]->bounds.y1)
4396 graphic_context[n]->bounds.y1=point.y;
4397 if (point.x > graphic_context[n]->bounds.x2)
4398 graphic_context[n]->bounds.x2=point.x;
4399 if (point.y > graphic_context[n]->bounds.y2)
4400 graphic_context[n]->bounds.y2=point.y;
4401 if (primitive_info[i].primitive == ImagePrimitive)
4403 if (i >= (ssize_t) number_points)
4404 ThrowFatalException(ResourceLimitFatalError,
"MemoryAllocationFailed");
4406 if (graphic_context[n]->render != MagickFalse)
4408 if ((n != 0) && (graphic_context[n]->compliance != SVGCompliance) &&
4409 (graphic_context[n]->clip_mask != (
char *) NULL) &&
4410 (LocaleCompare(graphic_context[n]->clip_mask,
4411 graphic_context[n-1]->clip_mask) != 0))
4416 clip_path=(
const char *) GetValueFromSplayTree(macros,
4417 graphic_context[n]->clip_mask);
4418 if (clip_path != (
const char *) NULL)
4419 (
void) SetImageArtifact(image,graphic_context[n]->clip_mask,
4421 status&=DrawClipPath(image,graphic_context[n],
4422 graphic_context[n]->clip_mask);
4424 status&=DrawPrimitive(image,graphic_context[n],primitive_info);
4426 proceed=SetImageProgress(image,RenderImageTag,q-primitive,(MagickSizeType)
4428 if (proceed == MagickFalse)
4433 if (draw_info->debug != MagickFalse)
4434 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end draw-image");
4438 macros=DestroySplayTree(macros);
4439 token=DestroyString(token);
4442 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4443 if (primitive_info[i].text != (
char *) NULL)
4444 primitive_info[i].text=DestroyString(primitive_info[i].text);
4445 primitive_info=(
PrimitiveInfo *) RelinquishMagickMemory(primitive_info);
4447 primitive=DestroyString(primitive);
4448 for ( ; n >= 0; n--)
4449 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
4450 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
4451 if (status == MagickFalse)
4452 ThrowBinaryImageException(DrawError,
4453 "NonconformingDrawingPrimitiveDefinition",keyword);
4454 return(status != 0 ? MagickTrue : MagickFalse);
4457 MagickExport MagickBooleanType DrawImage(
Image *image,
const DrawInfo *draw_info)
4459 return(RenderMVGContent(image,draw_info,0));
4491 MagickExport MagickBooleanType DrawPatternPath(
Image *image,
4495 property[MaxTextExtent];
4511 assert(image != (
Image *) NULL);
4512 assert(image->signature == MagickCoreSignature);
4513 assert(draw_info != (
const DrawInfo *) NULL);
4514 if (IsEventLogging() != MagickFalse)
4515 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4516 assert(name != (
const char *) NULL);
4517 (void) FormatLocaleString(property,MaxTextExtent,
"%s",name);
4518 path=GetImageArtifact(image,property);
4519 if (path == (
const char *) NULL)
4520 return(MagickFalse);
4521 (void) FormatLocaleString(property,MaxTextExtent,
"%s-geometry",name);
4522 geometry=GetImageArtifact(image,property);
4523 if (geometry == (
const char *) NULL)
4524 return(MagickFalse);
4525 if ((*pattern) != (
Image *) NULL)
4526 *pattern=DestroyImage(*pattern);
4527 image_info=AcquireImageInfo();
4528 image_info->size=AcquireString(geometry);
4529 *pattern=AcquireImage(image_info);
4530 image_info=DestroyImageInfo(image_info);
4531 (void) QueryColorDatabase(
"#00000000",&(*pattern)->background_color,
4533 (void) SetImageBackgroundColor(*pattern);
4534 if (draw_info->debug != MagickFalse)
4535 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
4536 "begin pattern-path %s %s",name,geometry);
4537 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
4538 if (clone_info->fill_pattern != (
Image *) NULL)
4539 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
4540 if (clone_info->stroke_pattern != (
Image *) NULL)
4541 clone_info->stroke_pattern=DestroyImage(clone_info->stroke_pattern);
4542 (void) FormatLocaleString(property,MaxTextExtent,
"%s-type",name);
4543 type=GetImageArtifact(image,property);
4544 if (type != (
const char *) NULL)
4545 clone_info->gradient.type=(GradientType) ParseCommandOption(
4546 MagickGradientOptions,MagickFalse,type);
4547 (void) CloneString(&clone_info->primitive,path);
4548 status=RenderMVGContent(*pattern,clone_info,0);
4549 clone_info=DestroyDrawInfo(clone_info);
4550 if (draw_info->debug != MagickFalse)
4551 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end pattern-path");
4589 for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
4591 polygon_info[i]=DestroyPolygonInfo(polygon_info[i]);
4592 polygon_info=(
PolygonInfo **) RelinquishMagickMemory(polygon_info);
4593 return(polygon_info);
4600 *magick_restrict path_info;
4608 number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
4609 polygon_info=(
PolygonInfo **) AcquireQuantumMemory(number_threads,
4610 sizeof(*polygon_info));
4613 (void) ThrowMagickException(exception,GetMagickModule(),
4614 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4617 (void) memset(polygon_info,0,number_threads*
sizeof(*polygon_info));
4618 path_info=ConvertPrimitiveToPath(draw_info,primitive_info,exception);
4619 if (path_info == (
PathInfo *) NULL)
4620 return(DestroyPolygonTLS(polygon_info));
4621 polygon_info[0]=ConvertPathToPolygon(path_info,exception);
4624 (void) ThrowMagickException(exception,GetMagickModule(),
4625 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4626 return(DestroyPolygonTLS(polygon_info));
4628 path_info=(
PathInfo *) RelinquishMagickMemory(path_info);
4629 return(polygon_info);
4632 static MagickBooleanType AcquirePolygonEdgesTLS(
PolygonInfo **polygon_info,
4638 for (i=1; i < (ssize_t) number_threads; i++)
4646 polygon_info[i]=(
PolygonInfo *) AcquireMagickMemory(
4647 sizeof(*polygon_info[i]));
4650 (void) ThrowMagickException(exception,GetMagickModule(),
4651 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4652 return(MagickFalse);
4654 polygon_info[i]->number_edges=0;
4655 edge_info=polygon_info[0]->edges;
4656 polygon_info[i]->edges=(
EdgeInfo *) AcquireQuantumMemory(
4657 polygon_info[0]->number_edges,
sizeof(*edge_info));
4658 if (polygon_info[i]->edges == (
EdgeInfo *) NULL)
4660 (void) ThrowMagickException(exception,GetMagickModule(),
4661 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4662 return(MagickFalse);
4664 (void) memcpy(polygon_info[i]->edges,edge_info,
4665 polygon_info[0]->number_edges*
sizeof(*edge_info));
4666 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4667 polygon_info[i]->edges[j].points=(
PointInfo *) NULL;
4668 polygon_info[i]->number_edges=polygon_info[0]->number_edges;
4669 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4671 edge_info=polygon_info[0]->edges+j;
4672 polygon_info[i]->edges[j].points=(
PointInfo *) AcquireQuantumMemory(
4673 edge_info->number_points,
sizeof(*edge_info));
4674 if (polygon_info[i]->edges[j].points == (
PointInfo *) NULL)
4676 (void) ThrowMagickException(exception,GetMagickModule(),
4677 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4678 return(MagickFalse);
4680 (void) memcpy(polygon_info[i]->edges[j].points,edge_info->points,
4681 edge_info->number_points*
sizeof(*edge_info->points));
4687 static size_t DestroyEdge(
PolygonInfo *polygon_info,
const ssize_t edge)
4689 assert(edge < (ssize_t) polygon_info->number_edges);
4690 polygon_info->edges[edge].points=(
PointInfo *) RelinquishMagickMemory(
4691 polygon_info->edges[edge].points);
4692 polygon_info->number_edges--;
4693 if (edge < (ssize_t) polygon_info->number_edges)
4694 (
void) memmove(polygon_info->edges+edge,polygon_info->edges+edge+1,
4695 (
size_t) (polygon_info->number_edges-edge)*
sizeof(*polygon_info->edges));
4696 return(polygon_info->number_edges);
4699 static double GetOpacityPixel(
PolygonInfo *polygon_info,
const double mid,
4700 const MagickBooleanType fill,
const FillRule fill_rule,
const ssize_t x,
4701 const ssize_t y,
double *stroke_opacity)
4728 *stroke_opacity=0.0;
4729 subpath_opacity=0.0;
4730 p=polygon_info->edges;
4731 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4733 if ((
double) y <= (p->bounds.y1-mid-0.5))
4735 if ((
double) y > (p->bounds.y2+mid+0.5))
4738 (void) DestroyEdge(polygon_info,j--);
4741 if (((
double) x <= (p->bounds.x1-mid-0.5)) ||
4742 ((
double) x > (p->bounds.x2+mid+0.5)))
4744 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4745 for ( ; i < (ssize_t) p->number_points; i++)
4747 if ((
double) y <= (p->points[i-1].y-mid-0.5))
4749 if ((
double) y > (p->points[i].y+mid+0.5))
4751 if (p->scanline != (
double) y)
4753 p->scanline=(double) y;
4754 p->highwater=(size_t) i;
4760 delta.x=(q+1)->x-q->x;
4761 delta.y=(q+1)->y-q->y;
4762 beta=delta.x*(x-q->x)+delta.y*(y-q->y);
4765 delta.x=(double) x-q->x;
4766 delta.y=(
double) y-q->y;
4767 distance=delta.x*delta.x+delta.y*delta.y;
4771 alpha=delta.x*delta.x+delta.y*delta.y;
4774 delta.x=(double) x-(q+1)->x;
4775 delta.y=(double) y-(q+1)->y;
4776 distance=delta.x*delta.x+delta.y*delta.y;
4780 alpha=PerceptibleReciprocal(alpha);
4781 beta=delta.x*(y-q->y)-delta.y*(x-q->x);
4782 distance=alpha*beta*beta;
4789 if (p->ghostline == MagickFalse)
4792 if ((*stroke_opacity < 1.0) &&
4793 (distance <= ((alpha+0.25)*(alpha+0.25))))
4796 if (distance <= ((alpha+0.25)*(alpha+0.25)))
4797 *stroke_opacity=1.0;
4801 if (fabs(distance-1.0) >= MagickEpsilon)
4802 beta=sqrt((
double) distance);
4804 if (*stroke_opacity < ((alpha-0.25)*(alpha-0.25)))
4805 *stroke_opacity=(alpha-0.25)*(alpha-0.25);
4809 if ((fill == MagickFalse) || (distance > 1.0) || (subpath_opacity >= 1.0))
4811 if (distance <= 0.0)
4813 subpath_opacity=1.0;
4818 if (fabs(beta) < MagickEpsilon)
4821 if (fabs(distance-1.0) >= MagickEpsilon)
4822 beta=sqrt(distance);
4825 if (subpath_opacity < (alpha*alpha))
4826 subpath_opacity=alpha*alpha;
4832 if (fill == MagickFalse)
4834 if (subpath_opacity >= 1.0)
4840 p=polygon_info->edges;
4841 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4843 if ((
double) y <= p->bounds.y1)
4845 if (((
double) y > p->bounds.y2) || ((
double) x <= p->bounds.x1))
4847 if ((
double) x > p->bounds.x2)
4849 winding_number+=p->direction != 0 ? 1 : -1;
4852 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4853 for ( ; i < (ssize_t) (p->number_points-1); i++)
4854 if ((
double) y <= p->points[i].y)
4857 if ((((q+1)->x-q->x)*(y-q->y)) <= (((q+1)->y-q->y)*(x-q->x)))
4858 winding_number+=p->direction != 0 ? 1 : -1;
4860 if (fill_rule != NonZeroRule)
4862 if ((MagickAbsoluteValue(winding_number) & 0x01) != 0)
4866 if (MagickAbsoluteValue(winding_number) != 0)
4868 return(subpath_opacity);
4871 static MagickBooleanType DrawPolygonPrimitive(
Image *image,
4874 typedef struct _ExtentInfo
4903 **magick_restrict polygon_info;
4918 assert(image != (
Image *) NULL);
4919 assert(image->signature == MagickCoreSignature);
4920 assert(draw_info != (
DrawInfo *) NULL);
4921 assert(draw_info->signature == MagickCoreSignature);
4923 if (IsEventLogging() != MagickFalse)
4924 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4925 if (primitive_info->coordinates <= 1)
4930 polygon_info=AcquirePolygonTLS(draw_info,primitive_info,&image->exception);
4932 return(MagickFalse);
4933 if (draw_info->debug != MagickFalse)
4934 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-polygon");
4935 fill=(primitive_info->method == FillToBorderMethod) ||
4936 (primitive_info->method == FloodfillMethod) ? MagickTrue : MagickFalse;
4937 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
4938 bounds=polygon_info[0]->edges[0].bounds;
4939 artifact=GetImageArtifact(image,
"draw:render-bounding-rectangles");
4940 if (IsStringTrue(artifact) != MagickFalse)
4941 (void) DrawBoundingRectangles(image,draw_info,polygon_info[0]);
4942 for (i=1; i < (ssize_t) polygon_info[0]->number_edges; i++)
4944 p=polygon_info[0]->edges+i;
4945 if (p->bounds.x1 < bounds.x1)
4946 bounds.x1=p->bounds.x1;
4947 if (p->bounds.y1 < bounds.y1)
4948 bounds.y1=p->bounds.y1;
4949 if (p->bounds.x2 > bounds.x2)
4950 bounds.x2=p->bounds.x2;
4951 if (p->bounds.y2 > bounds.y2)
4952 bounds.y2=p->bounds.y2;
4954 bounds.x1-=(mid+1.0);
4955 bounds.y1-=(mid+1.0);
4956 bounds.x2+=(mid+1.0);
4957 bounds.y2+=(mid+1.0);
4958 if ((bounds.x1 >= (
double) image->columns) ||
4959 (bounds.y1 >= (
double) image->rows) ||
4960 (bounds.x2 <= 0.0) || (bounds.y2 <= 0.0))
4962 polygon_info=DestroyPolygonTLS(polygon_info);
4965 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double) image->columns-1.0 ?
4966 (
double) image->columns-1.0 : bounds.x1;
4967 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double) image->rows-1.0 ?
4968 (
double) image->rows-1.0 : bounds.y1;
4969 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double) image->columns-1.0 ?
4970 (
double) image->columns-1.0 : bounds.x2;
4971 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double) image->rows-1.0 ?
4972 (
double) image->rows-1.0 : bounds.y2;
4973 poly_extent.x1=CastDoubleToLong(ceil(bounds.x1-0.5));
4974 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
4975 poly_extent.x2=CastDoubleToLong(floor(bounds.x2+0.5));
4976 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
4977 number_threads=GetMagickNumberThreads(image,image,poly_extent.y2-
4978 poly_extent.y1+1,1);
4979 status=AcquirePolygonEdgesTLS(polygon_info,number_threads,&image->exception);
4980 if (status == MagickFalse)
4982 polygon_info=DestroyPolygonTLS(polygon_info);
4986 exception=(&image->exception);
4987 image_view=AcquireAuthenticCacheView(image,exception);
4988 if ((primitive_info->coordinates == 1) ||
4989 (polygon_info[0]->number_edges == 0))
4994 #if defined(MAGICKCORE_OPENMP_SUPPORT)
4995 #pragma omp parallel for schedule(static) shared(status) \
4996 num_threads(number_threads)
4998 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5009 if (status == MagickFalse)
5012 q=GetCacheViewAuthenticPixels(image_view,x,y,(
size_t) (poly_extent.x2-
5019 for ( ; x <= poly_extent.x2; x++)
5021 if ((x == CastDoubleToLong(ceil(primitive_info->point.x-0.5))) &&
5022 (y == CastDoubleToLong(ceil(primitive_info->point.y-0.5))))
5023 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,q);
5026 sync=SyncCacheViewAuthenticPixels(image_view,exception);
5027 if (sync == MagickFalse)
5030 image_view=DestroyCacheView(image_view);
5031 polygon_info=DestroyPolygonTLS(polygon_info);
5032 if (draw_info->debug != MagickFalse)
5033 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5034 " end draw-polygon");
5040 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
5041 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
5042 #if defined(MAGICKCORE_OPENMP_SUPPORT)
5043 #pragma omp parallel for schedule(static) shared(status) \
5044 num_threads(number_threads)
5046 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5049 id = GetOpenMPThreadId();
5061 if (status == MagickFalse)
5063 q=GetCacheViewAuthenticPixels(image_view,poly_extent.x1,y,(
size_t)
5064 (poly_extent.x2-poly_extent.x1+1),1,exception);
5070 for (x=poly_extent.x1; x <= poly_extent.x2; x++)
5079 fill_opacity=GetOpacityPixel(polygon_info[
id],mid,fill,
5080 draw_info->fill_rule,x,y,&stroke_opacity);
5081 if (draw_info->stroke_antialias == MagickFalse)
5083 fill_opacity=fill_opacity >= AntialiasThreshold ? 1.0 : 0.0;
5084 stroke_opacity=stroke_opacity >= AntialiasThreshold ? 1.0 : 0.0;
5086 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5088 fill_opacity=(double) (QuantumRange-fill_opacity*(QuantumRange-
5089 fill_color.opacity));
5090 MagickCompositeOver(&fill_color,(MagickRealType) fill_opacity,q,
5091 (MagickRealType) q->opacity,q);
5092 (void) GetStrokeColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5094 stroke_opacity=(double) (QuantumRange-stroke_opacity*(QuantumRange-
5095 stroke_color.opacity));
5096 MagickCompositeOver(&stroke_color,(MagickRealType) stroke_opacity,q,
5097 (MagickRealType) q->opacity,q);
5100 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5103 image_view=DestroyCacheView(image_view);
5104 polygon_info=DestroyPolygonTLS(polygon_info);
5105 if (draw_info->debug != MagickFalse)
5106 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-polygon");
5137 static void LogPrimitiveInfo(
const PrimitiveInfo *primitive_info)
5163 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5164 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5165 switch (primitive_info->primitive)
5167 case PointPrimitive:
5169 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5170 "PointPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5171 methods[primitive_info->method]);
5174 case ColorPrimitive:
5176 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5177 "ColorPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5178 methods[primitive_info->method]);
5181 case MattePrimitive:
5183 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5184 "MattePrimitive %.20g,%.20g %s",(double) x,(
double) y,
5185 methods[primitive_info->method]);
5190 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5191 "TextPrimitive %.20g,%.20g",(double) x,(
double) y);
5194 case ImagePrimitive:
5196 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5197 "ImagePrimitive %.20g,%.20g",(double) x,(
double) y);
5204 p=primitive_info[0].point;
5207 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
5209 point=primitive_info[i].point;
5210 if (coordinates <= 0)
5212 coordinates=(ssize_t) primitive_info[i].coordinates;
5213 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5214 " begin open (%.20g)",(double) coordinates);
5217 point=primitive_info[i].point;
5218 if ((fabs(q.x-point.x) >= MagickEpsilon) ||
5219 (fabs(q.y-point.y) >= MagickEpsilon))
5220 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5221 " %.20g: %.18g,%.18g",(double) coordinates,point.x,point.y);
5223 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
5224 " %.20g: %g %g (duplicate)",(
double) coordinates,point.x,point.y);
5227 if (coordinates > 0)
5229 if ((fabs(p.x-point.x) >= MagickEpsilon) ||
5230 (fabs(p.y-point.y) >= MagickEpsilon))
5231 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end last (%.20g)",
5232 (double) coordinates);
5234 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end open (%.20g)",
5235 (
double) coordinates);
5239 MagickExport MagickBooleanType DrawPrimitive(
Image *image,
5258 if (draw_info->debug != MagickFalse)
5260 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5261 " begin draw-primitive");
5262 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5263 " affine: %g,%g,%g,%g,%g,%g",draw_info->affine.sx,
5264 draw_info->affine.rx,draw_info->affine.ry,draw_info->affine.sy,
5265 draw_info->affine.tx,draw_info->affine.ty);
5267 exception=(&image->exception);
5269 if ((IsGrayColorspace(image->colorspace) != MagickFalse) &&
5270 ((IsPixelGray(&draw_info->fill) == MagickFalse) ||
5271 (IsPixelGray(&draw_info->stroke) == MagickFalse)))
5272 status=SetImageColorspace(image,sRGBColorspace);
5273 if (draw_info->compliance == SVGCompliance)
5275 status&=SetImageClipMask(image,draw_info->clipping_mask);
5276 status&=SetImageMask(image,draw_info->composite_mask);
5278 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5279 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5280 image_view=AcquireAuthenticCacheView(image,exception);
5281 switch (primitive_info->primitive)
5283 case ColorPrimitive:
5285 switch (primitive_info->method)
5293 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5296 (void) GetFillColor(draw_info,x,y,q);
5297 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5305 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5306 for (y=0; y < (ssize_t) image->rows; y++)
5311 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5315 for (x=0; x < (ssize_t) image->columns; x++)
5317 if (IsColorSimilar(image,q,&target) == MagickFalse)
5322 (void) GetFillColor(draw_info,x,y,q);
5325 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5326 if (status == MagickFalse)
5331 case FloodfillMethod:
5332 case FillToBorderMethod:
5337 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5338 if (primitive_info->method == FillToBorderMethod)
5340 target.red=(MagickRealType) draw_info->border_color.red;
5341 target.green=(MagickRealType) draw_info->border_color.green;
5342 target.blue=(MagickRealType) draw_info->border_color.blue;
5344 status&=FloodfillPaintImage(image,DefaultChannels,draw_info,&target,x,
5345 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5351 for (y=0; y < (ssize_t) image->rows; y++)
5359 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5363 for (x=0; x < (ssize_t) image->columns; x++)
5365 (void) GetFillColor(draw_info,x,y,q);
5368 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5369 if (status == MagickFalse)
5377 case MattePrimitive:
5379 if (image->matte == MagickFalse)
5380 status&=SetImageAlphaChannel(image,OpaqueAlphaChannel);
5381 switch (primitive_info->method)
5392 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5395 (void) GetFillColor(draw_info,x,y,&pixel);
5396 SetPixelOpacity(q,pixel.opacity);
5397 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5406 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5407 for (y=0; y < (ssize_t) image->rows; y++)
5415 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5419 for (x=0; x < (ssize_t) image->columns; x++)
5421 if (IsColorSimilar(image,q,&target) == MagickFalse)
5426 (void) GetFillColor(draw_info,x,y,&pixel);
5427 SetPixelOpacity(q,pixel.opacity);
5430 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5431 if (status == MagickFalse)
5436 case FloodfillMethod:
5437 case FillToBorderMethod:
5442 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5443 if (primitive_info->method == FillToBorderMethod)
5445 target.red=(MagickRealType) draw_info->border_color.red;
5446 target.green=(MagickRealType) draw_info->border_color.green;
5447 target.blue=(MagickRealType) draw_info->border_color.blue;
5449 status&=FloodfillPaintImage(image,OpacityChannel,draw_info,&target,x,
5450 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5459 for (y=0; y < (ssize_t) image->rows; y++)
5467 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5471 for (x=0; x < (ssize_t) image->columns; x++)
5473 (void) GetFillColor(draw_info,x,y,&pixel);
5474 SetPixelOpacity(q,pixel.opacity);
5477 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5478 if (status == MagickFalse)
5486 case ImagePrimitive:
5492 composite_geometry[MaxTextExtent];
5508 if (primitive_info->text == (
char *) NULL)
5510 clone_info=AcquireImageInfo();
5511 composite_images=(
Image *) NULL;
5512 if (LocaleNCompare(primitive_info->text,
"data:",5) == 0)
5513 composite_images=ReadInlineImage(clone_info,primitive_info->text,
5516 if (*primitive_info->text !=
'\0')
5527 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5529 (void) SetImageInfo(clone_info,1,exception);
5530 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5532 if (clone_info->size != (
char *) NULL)
5533 clone_info->size=DestroyString(clone_info->size);
5534 if (clone_info->extract != (
char *) NULL)
5535 clone_info->extract=DestroyString(clone_info->extract);
5536 path_status=GetPathAttributes(clone_info->filename,&attributes);
5537 if (path_status != MagickFalse)
5539 if (S_ISCHR(attributes.st_mode) == 0)
5540 composite_images=ReadImage(clone_info,exception);
5542 (
void) ThrowMagickException(exception,GetMagickModule(),
5543 FileOpenError,
"UnableToOpenFile",
"`%s'",
5544 clone_info->filename);
5547 if ((LocaleCompare(clone_info->magick,
"ftp") != 0) &&
5548 (LocaleCompare(clone_info->magick,
"http") != 0) &&
5549 (LocaleCompare(clone_info->magick,
"https") != 0) &&
5550 (LocaleCompare(clone_info->magick,
"vid") != 0))
5551 composite_images=ReadImage(clone_info,exception);
5553 (
void) ThrowMagickException(exception,GetMagickModule(),
5554 FileOpenError,
"UnableToOpenFile",
"`%s'",clone_info->filename);
5556 clone_info=DestroyImageInfo(clone_info);
5557 if (composite_images == (
Image *) NULL)
5562 composite_image=RemoveFirstImageFromList(&composite_images);
5563 composite_images=DestroyImageList(composite_images);
5564 (void) SetImageProgressMonitor(composite_image,(MagickProgressMonitor)
5565 NULL,(
void *) NULL);
5566 x1=CastDoubleToLong(ceil(primitive_info[1].point.x-0.5));
5567 y1=CastDoubleToLong(ceil(primitive_info[1].point.y-0.5));
5568 if (((x1 != 0L) && (x1 != (ssize_t) composite_image->columns)) ||
5569 ((y1 != 0L) && (y1 != (ssize_t) composite_image->rows)))
5572 geometry[MaxTextExtent];
5577 (void) FormatLocaleString(geometry,MaxTextExtent,
"%gx%g!",
5578 primitive_info[1].point.x,primitive_info[1].point.y);
5579 composite_image->filter=image->filter;
5580 status&=TransformImage(&composite_image,(
char *) NULL,geometry);
5582 if (composite_image->matte == MagickFalse)
5583 status&=SetImageAlphaChannel(composite_image,OpaqueAlphaChannel);
5584 if (draw_info->opacity != OpaqueOpacity)
5585 status&=SetImageOpacity(composite_image,draw_info->opacity);
5586 SetGeometry(image,&geometry);
5587 image->gravity=draw_info->gravity;
5590 (void) FormatLocaleString(composite_geometry,MaxTextExtent,
5591 "%.20gx%.20g%+.20g%+.20g",(
double) composite_image->columns,(double)
5592 composite_image->rows,(
double) geometry.x,(double) geometry.y);
5593 (void) ParseGravityGeometry(image,composite_geometry,&geometry,
5595 affine=draw_info->affine;
5596 affine.tx=(double) geometry.x;
5597 affine.ty=(
double) geometry.y;
5598 composite_image->interpolate=image->interpolate;
5599 if ((draw_info->compose == OverCompositeOp) ||
5600 (draw_info->compose == SrcOverCompositeOp))
5601 status&=DrawAffineImage(image,composite_image,&affine);
5603 status&=CompositeImage(image,draw_info->compose,composite_image,
5604 geometry.x,geometry.y);
5605 composite_image=DestroyImage(composite_image);
5608 case PointPrimitive:
5616 if ((y < 0) || (y >= (ssize_t) image->rows))
5618 if ((x < 0) || (x >= (ssize_t) image->columns))
5620 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5623 (void) GetFillColor(draw_info,x,y,&fill_color);
5624 MagickCompositeOver(&fill_color,(MagickRealType) fill_color.opacity,q,
5625 (MagickRealType) q->opacity,q);
5626 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5632 geometry[MaxTextExtent];
5637 if (primitive_info->text == (
char *) NULL)
5639 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5640 (void) CloneString(&clone_info->text,primitive_info->text);
5641 (void) FormatLocaleString(geometry,MaxTextExtent,
"%+f%+f",
5642 primitive_info->point.x,primitive_info->point.y);
5643 (void) CloneString(&clone_info->geometry,geometry);
5644 status&=AnnotateImage(image,clone_info);
5645 clone_info=DestroyDrawInfo(clone_info);
5657 if (IsEventLogging() != MagickFalse)
5658 LogPrimitiveInfo(primitive_info);
5659 scale=ExpandAffine(&draw_info->affine);
5660 if ((draw_info->dash_pattern != (
double *) NULL) &&
5661 (fabs(draw_info->dash_pattern[0]) >= MagickEpsilon) &&
5662 (fabs(scale*draw_info->stroke_width) >= MagickEpsilon) &&
5663 (draw_info->stroke.opacity != (Quantum) TransparentOpacity))
5668 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5669 clone_info->stroke_width=0.0;
5670 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5671 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5672 clone_info=DestroyDrawInfo(clone_info);
5673 if (status != MagickFalse)
5674 status&=DrawDashPolygon(draw_info,primitive_info,image);
5677 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5679 ((draw_info->stroke.opacity != (Quantum) TransparentOpacity) ||
5680 (draw_info->stroke_pattern != (
Image *) NULL)))
5692 closed_path=primitive_info[0].closed_subpath;
5693 i=(ssize_t) primitive_info[0].coordinates;
5694 x=fabs(primitive_info[i-1].point.x-primitive_info[0].point.x);
5695 y=fabs(primitive_info[i-1].point.y-primitive_info[0].point.y);
5696 if ((x < MagickEpsilon) && (y < MagickEpsilon))
5697 closed_path=MagickTrue;
5698 if ((((draw_info->linecap == RoundCap) ||
5699 (closed_path != MagickFalse)) &&
5700 (draw_info->linejoin == RoundJoin)) ||
5701 (primitive_info[i].primitive != UndefinedPrimitive))
5703 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5706 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5707 clone_info->stroke_width=0.0;
5708 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5709 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5710 clone_info=DestroyDrawInfo(clone_info);
5711 if (status != MagickFalse)
5712 status&=DrawStrokePolygon(image,draw_info,primitive_info);
5715 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5719 image_view=DestroyCacheView(image_view);
5720 if (draw_info->compliance == SVGCompliance)
5722 status&=SetImageClipMask(image,(
Image *) NULL);
5723 status&=SetImageMask(image,(
Image *) NULL);
5725 if (draw_info->debug != MagickFalse)
5726 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-primitive");
5727 return(status != 0 ? MagickTrue : MagickFalse);
5760 static MagickBooleanType DrawRoundLinecap(
Image *image,
5769 for (i=0; i < 4; i++)
5770 linecap[i]=(*primitive_info);
5771 linecap[0].coordinates=4;
5772 linecap[1].point.x+=2.0*MagickEpsilon;
5773 linecap[2].point.x+=2.0*MagickEpsilon;
5774 linecap[2].point.y+=2.0*MagickEpsilon;
5775 linecap[3].point.y+=2.0*MagickEpsilon;
5776 linecap[4].primitive=UndefinedPrimitive;
5777 return(DrawPolygonPrimitive(image,draw_info,linecap));
5780 static MagickBooleanType DrawStrokePolygon(
Image *image,
5802 if (draw_info->debug != MagickFalse)
5803 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5804 " begin draw-stroke-polygon");
5805 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5806 clone_info->fill=draw_info->stroke;
5807 if (clone_info->fill_pattern != (
Image *) NULL)
5808 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
5809 if (clone_info->stroke_pattern != (
Image *) NULL)
5810 clone_info->fill_pattern=CloneImage(clone_info->stroke_pattern,0,0,
5811 MagickTrue,&clone_info->stroke_pattern->exception);
5812 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5813 clone_info->stroke_width=0.0;
5814 clone_info->fill_rule=NonZeroRule;
5816 for (p=primitive_info; p->primitive != UndefinedPrimitive; p+=p->coordinates)
5818 if (p->coordinates == 1)
5820 stroke_polygon=TraceStrokePolygon(draw_info,p,&image->exception);
5826 status&=DrawPolygonPrimitive(image,clone_info,stroke_polygon);
5827 stroke_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(stroke_polygon);
5830 q=p+p->coordinates-1;
5831 closed_path=p->closed_subpath;
5832 if ((draw_info->linecap == RoundCap) && (closed_path == MagickFalse))
5834 status&=DrawRoundLinecap(image,draw_info,p);
5835 status&=DrawRoundLinecap(image,draw_info,q);
5838 clone_info=DestroyDrawInfo(clone_info);
5839 if (draw_info->debug != MagickFalse)
5840 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5841 " end draw-stroke-polygon");
5842 return(status != 0 ? MagickTrue : MagickFalse);
5868 MagickExport
void GetAffineMatrix(
AffineMatrix *affine_matrix)
5871 if (IsEventLogging() != MagickFalse)
5872 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5873 (void) memset(affine_matrix,0,
sizeof(*affine_matrix));
5874 affine_matrix->sx=1.0;
5875 affine_matrix->sy=1.0;
5919 assert(draw_info != (
DrawInfo *) NULL);
5920 if (IsEventLogging() != MagickFalse)
5921 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5922 (void) memset(draw_info,0,
sizeof(*draw_info));
5923 clone_info=CloneImageInfo(image_info);
5924 GetAffineMatrix(&draw_info->affine);
5925 exception=AcquireExceptionInfo();
5926 (void) QueryColorDatabase(
"#000F",&draw_info->fill,exception);
5927 (void) QueryColorDatabase(
"#FFF0",&draw_info->stroke,exception);
5928 draw_info->stroke_antialias=clone_info->antialias;
5929 draw_info->stroke_width=1.0;
5930 draw_info->fill_rule=EvenOddRule;
5931 draw_info->opacity=OpaqueOpacity;
5932 draw_info->fill_opacity=OpaqueOpacity;
5933 draw_info->stroke_opacity=OpaqueOpacity;
5934 draw_info->linecap=ButtCap;
5935 draw_info->linejoin=MiterJoin;
5936 draw_info->miterlimit=10;
5937 draw_info->decorate=NoDecoration;
5938 if (clone_info->font != (
char *) NULL)
5939 draw_info->font=AcquireString(clone_info->font);
5940 if (clone_info->density != (
char *) NULL)
5941 draw_info->density=AcquireString(clone_info->density);
5942 draw_info->text_antialias=clone_info->antialias;
5943 draw_info->pointsize=12.0;
5944 if (fabs(clone_info->pointsize) >= MagickEpsilon)
5945 draw_info->pointsize=clone_info->pointsize;
5946 draw_info->undercolor.opacity=(Quantum) TransparentOpacity;
5947 draw_info->border_color=clone_info->border_color;
5948 draw_info->compose=OverCompositeOp;
5949 if (clone_info->server_name != (
char *) NULL)
5950 draw_info->server_name=AcquireString(clone_info->server_name);
5951 draw_info->render=MagickTrue;
5952 draw_info->clip_path=MagickFalse;
5953 draw_info->debug=(GetLogEventMask() & (DrawEvent | AnnotateEvent)) != 0 ?
5954 MagickTrue : MagickFalse;
5955 option=GetImageOption(clone_info,
"direction");
5956 if (option != (
const char *) NULL)
5957 draw_info->direction=(DirectionType) ParseCommandOption(
5958 MagickDirectionOptions,MagickFalse,option);
5960 draw_info->direction=UndefinedDirection;
5961 option=GetImageOption(clone_info,
"encoding");
5962 if (option != (
const char *) NULL)
5963 (void) CloneString(&draw_info->encoding,option);
5964 option=GetImageOption(clone_info,
"family");
5965 if (option != (
const char *) NULL)
5966 (void) CloneString(&draw_info->family,option);
5967 option=GetImageOption(clone_info,
"fill");
5968 if (option != (
const char *) NULL)
5969 (void) QueryColorDatabase(option,&draw_info->fill,exception);
5970 option=GetImageOption(clone_info,
"gravity");
5971 if (option != (
const char *) NULL)
5972 draw_info->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
5973 MagickFalse,option);
5974 option=GetImageOption(clone_info,
"interline-spacing");
5975 if (option != (
const char *) NULL)
5976 draw_info->interline_spacing=GetDrawValue(option,&next_token);
5977 option=GetImageOption(clone_info,
"interword-spacing");
5978 if (option != (
const char *) NULL)
5979 draw_info->interword_spacing=GetDrawValue(option,&next_token);
5980 option=GetImageOption(clone_info,
"kerning");
5981 if (option != (
const char *) NULL)
5982 draw_info->kerning=GetDrawValue(option,&next_token);
5983 option=GetImageOption(clone_info,
"stroke");
5984 if (option != (
const char *) NULL)
5985 (void) QueryColorDatabase(option,&draw_info->stroke,exception);
5986 option=GetImageOption(clone_info,
"strokewidth");
5987 if (option != (
const char *) NULL)
5988 draw_info->stroke_width=GetDrawValue(option,&next_token);
5989 option=GetImageOption(clone_info,
"style");
5990 if (option != (
const char *) NULL)
5991 draw_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
5992 MagickFalse,option);
5993 option=GetImageOption(clone_info,
"undercolor");
5994 if (option != (
const char *) NULL)
5995 (void) QueryColorDatabase(option,&draw_info->undercolor,exception);
5996 option=GetImageOption(clone_info,
"weight");
5997 if (option != (
const char *) NULL)
6002 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,option);
6004 weight=(ssize_t) StringToUnsignedLong(option);
6005 draw_info->weight=(size_t) weight;
6007 exception=DestroyExceptionInfo(exception);
6008 draw_info->signature=MagickCoreSignature;
6009 clone_info=DestroyImageInfo(clone_info);
6037 static inline double Permutate(
const ssize_t n,
const ssize_t k)
6046 for (i=k+1; i <= n; i++)
6048 for (i=1; i <= (n-k); i++)
6076 center.x=0.5*(end.x+start.x);
6077 center.y=0.5*(end.y+start.y);
6078 radius.x=fabs(center.x-start.x);
6079 radius.y=fabs(center.y-start.y);
6080 return(TraceEllipse(mvg_info,center,radius,degrees));
6083 static MagickBooleanType TraceArcPath(
MVGInfo *mvg_info,
const PointInfo start,
6085 const MagickBooleanType large_arc,
const MagickBooleanType sweep)
6122 offset=mvg_info->offset;
6123 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6124 primitive_info->coordinates=0;
6125 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6126 (fabs(start.y-end.y) < MagickEpsilon))
6127 return(TracePoint(primitive_info,end));
6128 radii.x=fabs(arc.x);
6129 radii.y=fabs(arc.y);
6130 if ((radii.x < MagickEpsilon) || (radii.y < MagickEpsilon))
6131 return(TraceLine(primitive_info,start,end));
6132 cosine=cos(DegreesToRadians(fmod((
double) angle,360.0)));
6133 sine=sin(DegreesToRadians(fmod((
double) angle,360.0)));
6134 center.x=(double) (cosine*(end.x-start.x)/2+sine*(end.y-start.y)/2);
6135 center.y=(double) (cosine*(end.y-start.y)/2-sine*(end.x-start.x)/2);
6136 delta=(center.x*center.x)/(radii.x*radii.x)+(center.y*center.y)/
6138 if (delta < MagickEpsilon)
6139 return(TraceLine(primitive_info,start,end));
6142 radii.x*=sqrt((
double) delta);
6143 radii.y*=sqrt((
double) delta);
6145 points[0].x=(double) (cosine*start.x/radii.x+sine*start.y/radii.x);
6146 points[0].y=(double) (cosine*start.y/radii.y-sine*start.x/radii.y);
6147 points[1].x=(double) (cosine*end.x/radii.x+sine*end.y/radii.x);
6148 points[1].y=(double) (cosine*end.y/radii.y-sine*end.x/radii.y);
6149 alpha=points[1].x-points[0].x;
6150 beta=points[1].y-points[0].y;
6151 if (fabs(alpha*alpha+beta*beta) < MagickEpsilon)
6152 return(TraceLine(primitive_info,start,end));
6153 factor=PerceptibleReciprocal(alpha*alpha+beta*beta)-0.25;
6158 factor=sqrt((
double) factor);
6159 if (sweep == large_arc)
6162 center.x=(double) ((points[0].x+points[1].x)/2-factor*beta);
6163 center.y=(double) ((points[0].y+points[1].y)/2+factor*alpha);
6164 alpha=atan2(points[0].y-center.y,points[0].x-center.x);
6165 theta=atan2(points[1].y-center.y,points[1].x-center.x)-alpha;
6166 if ((theta < 0.0) && (sweep != MagickFalse))
6167 theta+=2.0*MagickPI;
6169 if ((theta > 0.0) && (sweep == MagickFalse))
6170 theta-=2.0*MagickPI;
6171 arc_segments=(size_t) CastDoubleToLong(ceil(fabs((
double) (theta/(0.5*
6172 MagickPI+MagickEpsilon)))));
6175 for (i=0; i < (ssize_t) arc_segments; i++)
6177 beta=0.5*((alpha+(i+1)*theta/arc_segments)-(alpha+i*theta/arc_segments));
6178 gamma=(8.0/3.0)*sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))*
6179 sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))/
6180 sin(fmod((
double) beta,DegreesToRadians(360.0)));
6181 points[0].x=(double) (center.x+cos(fmod((
double) (alpha+(
double) i*theta/
6182 arc_segments),DegreesToRadians(360.0)))-gamma*sin(fmod((
double) (alpha+
6183 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6184 points[0].y=(double) (center.y+sin(fmod((
double) (alpha+(
double) i*theta/
6185 arc_segments),DegreesToRadians(360.0)))+gamma*cos(fmod((
double) (alpha+
6186 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6187 points[2].x=(double) (center.x+cos(fmod((
double) (alpha+(double) (i+1)*
6188 theta/arc_segments),DegreesToRadians(360.0))));
6189 points[2].y=(double) (center.y+sin(fmod((
double) (alpha+(double) (i+1)*
6190 theta/arc_segments),DegreesToRadians(360.0))));
6191 points[1].x=(double) (points[2].x+gamma*sin(fmod((
double) (alpha+(double)
6192 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6193 points[1].y=(double) (points[2].y-gamma*cos(fmod((
double) (alpha+(double)
6194 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6195 p->point.x=(p == primitive_info) ? start.x : (p-1)->point.x;
6196 p->point.y=(p == primitive_info) ? start.y : (p-1)->point.y;
6197 (p+1)->point.x=(
double) (cosine*radii.x*points[0].x-sine*radii.y*
6199 (p+1)->point.y=(
double) (sine*radii.x*points[0].x+cosine*radii.y*
6201 (p+2)->point.x=(
double) (cosine*radii.x*points[1].x-sine*radii.y*
6203 (p+2)->point.y=(
double) (sine*radii.x*points[1].x+cosine*radii.y*
6205 (p+3)->point.x=(
double) (cosine*radii.x*points[2].x-sine*radii.y*
6207 (p+3)->point.y=(
double) (sine*radii.x*points[2].x+cosine*radii.y*
6209 if (i == (ssize_t) (arc_segments-1))
6211 status&=TraceBezier(mvg_info,4);
6214 p=(*mvg_info->primitive_info)+mvg_info->offset;
6215 mvg_info->offset+=p->coordinates;
6219 return(MagickFalse);
6220 mvg_info->offset=offset;
6221 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6222 primitive_info->coordinates=(
size_t) (p-primitive_info);
6223 primitive_info->closed_subpath=MagickFalse;
6224 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6226 p->primitive=primitive_info->primitive;
6232 static MagickBooleanType TraceBezier(
MVGInfo *mvg_info,
6233 const size_t number_coordinates)
6262 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6263 quantum=number_coordinates;
6264 for (i=0; i < (ssize_t) number_coordinates; i++)
6266 for (j=i+1; j < (ssize_t) number_coordinates; j++)
6268 alpha=fabs(primitive_info[j].point.x-primitive_info[i].point.x);
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;
6277 alpha=fabs(primitive_info[j].point.y-primitive_info[i].point.y);
6278 if (alpha > (
double) MAGICK_SSIZE_MAX)
6280 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6281 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6282 return(MagickFalse);
6284 if (alpha > (
double) quantum)
6285 quantum=(
size_t) alpha;
6288 coefficients=(
double *) AcquireQuantumMemory(number_coordinates,
6289 sizeof(*coefficients));
6290 quantum=MagickMin(quantum/number_coordinates,BezierQuantum);
6291 points=(
PointInfo *) AcquireQuantumMemory(quantum,number_coordinates*
6293 if ((coefficients == (
double *) NULL) || (points == (
PointInfo *) NULL))
6296 points=(
PointInfo *) RelinquishMagickMemory(points);
6297 if (coefficients != (
double *) NULL)
6298 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6299 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6300 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6301 return(MagickFalse);
6303 control_points=quantum*number_coordinates;
6304 if (CheckPrimitiveExtent(mvg_info,(
double) control_points+1) == MagickFalse)
6306 points=(
PointInfo *) RelinquishMagickMemory(points);
6307 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6308 return(MagickFalse);
6310 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6314 end=primitive_info[number_coordinates-1].point;
6315 for (i=0; i < (ssize_t) number_coordinates; i++)
6316 coefficients[i]=Permutate((ssize_t) number_coordinates-1,i);
6318 for (i=0; i < (ssize_t) control_points; i++)
6323 alpha=pow((
double) (1.0-weight),(
double) number_coordinates-1.0);
6324 for (j=0; j < (ssize_t) number_coordinates; j++)
6326 point.x+=alpha*coefficients[j]*p->point.x;
6327 point.y+=alpha*coefficients[j]*p->point.y;
6328 alpha*=weight/(1.0-weight);
6332 weight+=1.0/control_points;
6338 for (i=0; i < (ssize_t) control_points; i++)
6340 if (TracePoint(p,points[i]) == MagickFalse)
6342 points=(
PointInfo *) RelinquishMagickMemory(points);
6343 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6344 return(MagickFalse);
6348 if (TracePoint(p,end) == MagickFalse)
6350 points=(
PointInfo *) RelinquishMagickMemory(points);
6351 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6352 return(MagickFalse);
6355 primitive_info->coordinates=(size_t) (p-primitive_info);
6356 primitive_info->closed_subpath=MagickFalse;
6357 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6359 p->primitive=primitive_info->primitive;
6362 points=(
PointInfo *) RelinquishMagickMemory(points);
6363 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6367 static MagickBooleanType TraceCircle(
MVGInfo *mvg_info,
const PointInfo start,
6379 alpha=end.x-start.x;
6381 radius=hypot((
double) alpha,(
double) beta);
6382 offset.x=(double) radius;
6383 offset.y=(double) radius;
6386 return(TraceEllipse(mvg_info,start,offset,degrees));
6389 static MagickBooleanType TraceEllipse(
MVGInfo *mvg_info,
const PointInfo center,
6415 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6416 primitive_info->coordinates=0;
6417 if ((fabs(radii.x) < MagickEpsilon) || (fabs(radii.y) < MagickEpsilon))
6419 delta=2.0*PerceptibleReciprocal(MagickMax(radii.x,radii.y));
6421 if ((delta >= 0.0) && (delta < (MagickPI/8.0)))
6422 step=MagickPI/4.0/(MagickPI*PerceptibleReciprocal(delta)/2.0);
6423 angle.x=DegreesToRadians(arc.x);
6427 angle.y=DegreesToRadians(y);
6428 coordinates=ceil((angle.y-angle.x)/step+1.0);
6429 if (CheckPrimitiveExtent(mvg_info,coordinates) == MagickFalse)
6430 return(MagickFalse);
6431 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6432 for (p=primitive_info; angle.x < angle.y; angle.x+=step)
6434 point.x=cos(fmod(angle.x,DegreesToRadians(360.0)))*radii.x+center.x;
6435 point.y=sin(fmod(angle.x,DegreesToRadians(360.0)))*radii.y+center.y;
6436 if (TracePoint(p,point) == MagickFalse)
6437 return(MagickFalse);
6440 point.x=cos(fmod(angle.y,DegreesToRadians(360.0)))*radii.x+center.x;
6441 point.y=sin(fmod(angle.y,DegreesToRadians(360.0)))*radii.y+center.y;
6442 if (TracePoint(p,point) == MagickFalse)
6443 return(MagickFalse);
6445 primitive_info->coordinates=(size_t) (p-primitive_info);
6446 primitive_info->closed_subpath=MagickFalse;
6447 x=fabs(primitive_info[0].point.x-
6448 primitive_info[primitive_info->coordinates-1].point.x);
6449 y=fabs(primitive_info[0].point.y-
6450 primitive_info[primitive_info->coordinates-1].point.y);
6451 if ((x < MagickEpsilon) && (y < MagickEpsilon))
6452 primitive_info->closed_subpath=MagickTrue;
6453 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6455 p->primitive=primitive_info->primitive;
6461 static MagickBooleanType TraceLine(
PrimitiveInfo *primitive_info,
6464 if (TracePoint(primitive_info,start) == MagickFalse)
6465 return(MagickFalse);
6466 if (TracePoint(primitive_info+1,end) == MagickFalse)
6467 return(MagickFalse);
6468 (primitive_info+1)->primitive=primitive_info->primitive;
6469 primitive_info->coordinates=2;
6470 primitive_info->closed_subpath=MagickFalse;
6474 static ssize_t TracePath(
Image *image,
MVGInfo *mvg_info,
const char *path)
6478 token[MaxTextExtent] =
"";
6496 points[4] = { {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0} },
6519 subpath_offset=mvg_info->offset;
6520 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6523 number_coordinates=0;
6526 primitive_type=primitive_info->primitive;
6528 for (p=path; *p !=
'\0'; )
6530 if (status == MagickFalse)
6532 while (isspace((
int) ((
unsigned char) *p)) != 0)
6536 last_attribute=attribute;
6537 attribute=(int) (*p++);
6547 large_arc = MagickFalse,
6548 sweep = MagickFalse;
6558 (void) GetNextToken(p,&p,MaxTextExtent,token);
6560 (void) GetNextToken(p,&p,MaxTextExtent,token);
6561 arc.x=GetDrawValue(token,&next_token);
6562 if (token == next_token)
6563 ThrowPointExpectedException(image,token);
6564 (void) GetNextToken(p,&p,MaxTextExtent,token);
6566 (void) GetNextToken(p,&p,MaxTextExtent,token);
6567 arc.y=GetDrawValue(token,&next_token);
6568 if (token == next_token)
6569 ThrowPointExpectedException(image,token);
6570 (void) GetNextToken(p,&p,MaxTextExtent,token);
6572 (void) GetNextToken(p,&p,MaxTextExtent,token);
6573 angle=GetDrawValue(token,&next_token);
6574 if (token == next_token)
6575 ThrowPointExpectedException(image,token);
6576 (void) GetNextToken(p,&p,MaxTextExtent,token);
6578 (void) GetNextToken(p,&p,MaxTextExtent,token);
6579 large_arc=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6580 (void) GetNextToken(p,&p,MaxTextExtent,token);
6582 (void) GetNextToken(p,&p,MaxTextExtent,token);
6583 sweep=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6585 (void) GetNextToken(p,&p,MaxTextExtent,token);
6586 (void) GetNextToken(p,&p,MaxTextExtent,token);
6588 (void) GetNextToken(p,&p,MaxTextExtent,token);
6589 x=GetDrawValue(token,&next_token);
6590 if (token == next_token)
6591 ThrowPointExpectedException(image,token);
6592 (void) GetNextToken(p,&p,MaxTextExtent,token);
6594 (void) GetNextToken(p,&p,MaxTextExtent,token);
6595 y=GetDrawValue(token,&next_token);
6596 if (token == next_token)
6597 ThrowPointExpectedException(image,token);
6598 end.x=(double) (attribute == (
int)
'A' ? x : point.x+x);
6599 end.y=(double) (attribute == (
int)
'A' ? y : point.y+y);
6600 status&=TraceArcPath(mvg_info,point,end,arc,angle,large_arc,sweep);
6601 q=(*mvg_info->primitive_info)+mvg_info->offset;
6602 mvg_info->offset+=q->coordinates;
6605 while (isspace((
int) ((
unsigned char) *p)) != 0)
6609 }
while (IsPoint(p) != MagickFalse);
6621 for (i=1; i < 4; i++)
6623 (void) GetNextToken(p,&p,MaxTextExtent,token);
6625 (void) GetNextToken(p,&p,MaxTextExtent,token);
6626 x=GetDrawValue(token,&next_token);
6627 if (token == next_token)
6628 ThrowPointExpectedException(image,token);
6629 (void) GetNextToken(p,&p,MaxTextExtent,token);
6631 (void) GetNextToken(p,&p,MaxTextExtent,token);
6632 y=GetDrawValue(token,&next_token);
6633 if (token == next_token)
6634 ThrowPointExpectedException(image,token);
6635 end.x=(double) (attribute == (
int)
'C' ? x : point.x+x);
6636 end.y=(double) (attribute == (
int)
'C' ? y : point.y+y);
6639 for (i=0; i < 4; i++)
6640 (q+i)->point=points[i];
6641 if (TraceBezier(mvg_info,4) == MagickFalse)
6643 q=(*mvg_info->primitive_info)+mvg_info->offset;
6644 mvg_info->offset+=q->coordinates;
6647 while (isspace((
int) ((
unsigned char) *p)) != 0)
6651 }
while (IsPoint(p) != MagickFalse);
6659 (void) GetNextToken(p,&p,MaxTextExtent,token);
6661 (void) GetNextToken(p,&p,MaxTextExtent,token);
6662 x=GetDrawValue(token,&next_token);
6663 if (token == next_token)
6664 ThrowPointExpectedException(image,token);
6665 point.x=(double) (attribute == (
int)
'H' ? x: point.x+x);
6666 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6668 q=(*mvg_info->primitive_info)+mvg_info->offset;
6669 if (TracePoint(q,point) == MagickFalse)
6671 mvg_info->offset+=q->coordinates;
6673 while (isspace((
int) ((
unsigned char) *p)) != 0)
6677 }
while (IsPoint(p) != MagickFalse);
6688 (void) GetNextToken(p,&p,MaxTextExtent,token);
6690 (void) GetNextToken(p,&p,MaxTextExtent,token);
6691 x=GetDrawValue(token,&next_token);
6692 if (token == next_token)
6693 ThrowPointExpectedException(image,token);
6694 (void) GetNextToken(p,&p,MaxTextExtent,token);
6696 (void) GetNextToken(p,&p,MaxTextExtent,token);
6697 y=GetDrawValue(token,&next_token);
6698 if (token == next_token)
6699 ThrowPointExpectedException(image,token);
6700 point.x=(double) (attribute == (
int)
'L' ? x : point.x+x);
6701 point.y=(double) (attribute == (
int)
'L' ? y : point.y+y);
6702 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6704 q=(*mvg_info->primitive_info)+mvg_info->offset;
6705 if (TracePoint(q,point) == MagickFalse)
6707 mvg_info->offset+=q->coordinates;
6709 while (isspace((
int) ((
unsigned char) *p)) != 0)
6713 }
while (IsPoint(p) != MagickFalse);
6722 if (mvg_info->offset != subpath_offset)
6724 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6725 primitive_info->coordinates=(size_t) (q-primitive_info);
6726 number_coordinates+=primitive_info->coordinates;
6728 subpath_offset=mvg_info->offset;
6733 (void) GetNextToken(p,&p,MaxTextExtent,token);
6735 (void) GetNextToken(p,&p,MaxTextExtent,token);
6736 x=GetDrawValue(token,&next_token);
6737 if (token == next_token)
6738 ThrowPointExpectedException(image,token);
6739 (void) GetNextToken(p,&p,MaxTextExtent,token);
6741 (void) GetNextToken(p,&p,MaxTextExtent,token);
6742 y=GetDrawValue(token,&next_token);
6743 if (token == next_token)
6744 ThrowPointExpectedException(image,token);
6745 point.x=(double) (attribute == (
int)
'M' ? x : point.x+x);
6746 point.y=(double) (attribute == (
int)
'M' ? y : point.y+y);
6750 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6752 q=(*mvg_info->primitive_info)+mvg_info->offset;
6753 if (TracePoint(q,point) == MagickFalse)
6755 mvg_info->offset+=q->coordinates;
6757 while (isspace((
int) ((
unsigned char) *p)) != 0)
6761 }
while (IsPoint(p) != MagickFalse);
6773 for (i=1; i < 3; i++)
6775 (void) GetNextToken(p,&p,MaxTextExtent,token);
6777 (void) GetNextToken(p,&p,MaxTextExtent,token);
6778 x=GetDrawValue(token,&next_token);
6779 if (token == next_token)
6780 ThrowPointExpectedException(image,token);
6781 (void) GetNextToken(p,&p,MaxTextExtent,token);
6783 (void) GetNextToken(p,&p,MaxTextExtent,token);
6784 y=GetDrawValue(token,&next_token);
6785 if (token == next_token)
6786 ThrowPointExpectedException(image,token);
6789 end.x=(double) (attribute == (
int)
'Q' ? x : point.x+x);
6790 end.y=(double) (attribute == (
int)
'Q' ? y : point.y+y);
6793 for (i=0; i < 3; i++)
6794 (q+i)->point=points[i];
6795 if (TraceBezier(mvg_info,3) == MagickFalse)
6797 q=(*mvg_info->primitive_info)+mvg_info->offset;
6798 mvg_info->offset+=q->coordinates;
6801 while (isspace((
int) ((
unsigned char) *p)) != 0)
6805 }
while (IsPoint(p) != MagickFalse);
6816 points[0]=points[3];
6817 points[1].x=2.0*points[3].x-points[2].x;
6818 points[1].y=2.0*points[3].y-points[2].y;
6819 for (i=2; i < 4; i++)
6821 (void) GetNextToken(p,&p,MaxTextExtent,token);
6823 (void) GetNextToken(p,&p,MaxTextExtent,token);
6824 x=GetDrawValue(token,&next_token);
6825 if (token == next_token)
6826 ThrowPointExpectedException(image,token);
6827 (void) GetNextToken(p,&p,MaxTextExtent,token);
6829 (void) GetNextToken(p,&p,MaxTextExtent,token);
6830 y=GetDrawValue(token,&next_token);
6831 if (token == next_token)
6832 ThrowPointExpectedException(image,token);
6835 end.x=(double) (attribute == (
int)
'S' ? x : point.x+x);
6836 end.y=(double) (attribute == (
int)
'S' ? y : point.y+y);
6839 if (strchr(
"CcSs",last_attribute) == (
char *) NULL)
6844 for (i=0; i < 4; i++)
6845 (q+i)->point=points[i];
6846 if (TraceBezier(mvg_info,4) == MagickFalse)
6848 q=(*mvg_info->primitive_info)+mvg_info->offset;
6849 mvg_info->offset+=q->coordinates;
6852 last_attribute=attribute;
6853 while (isspace((
int) ((
unsigned char) *p)) != 0)
6857 }
while (IsPoint(p) != MagickFalse);
6868 points[0]=points[2];
6869 points[1].x=2.0*points[2].x-points[1].x;
6870 points[1].y=2.0*points[2].y-points[1].y;
6871 for (i=2; i < 3; i++)
6873 (void) GetNextToken(p,&p,MaxTextExtent,token);
6875 (void) GetNextToken(p,&p,MaxTextExtent,token);
6876 x=GetDrawValue(token,&next_token);
6877 if (token == next_token)
6878 ThrowPointExpectedException(image,token);
6879 (void) GetNextToken(p,&p,MaxTextExtent,token);
6881 (void) GetNextToken(p,&p,MaxTextExtent,token);
6882 y=GetDrawValue(token,&next_token);
6883 if (token == next_token)
6884 ThrowPointExpectedException(image,token);
6885 end.x=(double) (attribute == (
int)
'T' ? x : point.x+x);
6886 end.y=(double) (attribute == (
int)
'T' ? y : point.y+y);
6889 if (status == MagickFalse)
6891 if (strchr(
"QqTt",last_attribute) == (
char *) NULL)
6896 for (i=0; i < 3; i++)
6897 (q+i)->point=points[i];
6898 if (TraceBezier(mvg_info,3) == MagickFalse)
6900 q=(*mvg_info->primitive_info)+mvg_info->offset;
6901 mvg_info->offset+=q->coordinates;
6904 last_attribute=attribute;
6905 while (isspace((
int) ((
unsigned char) *p)) != 0)
6909 }
while (IsPoint(p) != MagickFalse);
6920 (void) GetNextToken(p,&p,MaxTextExtent,token);
6922 (void) GetNextToken(p,&p,MaxTextExtent,token);
6923 y=GetDrawValue(token,&next_token);
6924 if (token == next_token)
6925 ThrowPointExpectedException(image,token);
6926 point.y=(double) (attribute == (
int)
'V' ? y : point.y+y);
6927 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6929 q=(*mvg_info->primitive_info)+mvg_info->offset;
6930 if (TracePoint(q,point) == MagickFalse)
6932 mvg_info->offset+=q->coordinates;
6934 while (isspace((
int) ((
unsigned char) *p)) != 0)
6938 }
while (IsPoint(p) != MagickFalse);
6948 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6950 q=(*mvg_info->primitive_info)+mvg_info->offset;
6951 if (TracePoint(q,point) == MagickFalse)
6953 mvg_info->offset+=q->coordinates;
6955 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6956 primitive_info->coordinates=(size_t) (q-primitive_info);
6957 primitive_info->closed_subpath=MagickTrue;
6958 number_coordinates+=primitive_info->coordinates;
6960 subpath_offset=mvg_info->offset;
6966 ThrowPointExpectedException(image,token);
6971 if (status == MagickFalse)
6973 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6974 primitive_info->coordinates=(size_t) (q-primitive_info);
6975 number_coordinates+=primitive_info->coordinates;
6976 for (i=0; i < (ssize_t) number_coordinates; i++)
6979 q->primitive=primitive_type;
6981 q->method=FillToBorderMethod;
6984 return((ssize_t) number_coordinates);
6987 static MagickBooleanType TraceRectangle(
PrimitiveInfo *primitive_info,
7000 if (TracePoint(p,start) == MagickFalse)
7001 return(MagickFalse);
7005 if (TracePoint(p,point) == MagickFalse)
7006 return(MagickFalse);
7008 if (TracePoint(p,end) == MagickFalse)
7009 return(MagickFalse);
7013 if (TracePoint(p,point) == MagickFalse)
7014 return(MagickFalse);
7016 if (TracePoint(p,start) == MagickFalse)
7017 return(MagickFalse);
7019 primitive_info->coordinates=(size_t) (p-primitive_info);
7020 primitive_info->closed_subpath=MagickTrue;
7021 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7023 p->primitive=primitive_info->primitive;
7029 static MagickBooleanType TraceRoundRectangle(
MVGInfo *mvg_info,
7049 offset=mvg_info->offset;
7050 segment.x=fabs(end.x-start.x);
7051 segment.y=fabs(end.y-start.y);
7052 if ((segment.x < MagickEpsilon) || (segment.y < MagickEpsilon))
7054 (*mvg_info->primitive_info+mvg_info->offset)->coordinates=0;
7057 if (arc.x > (0.5*segment.x))
7058 arc.x=0.5*segment.x;
7059 if (arc.y > (0.5*segment.y))
7060 arc.y=0.5*segment.y;
7061 point.x=start.x+segment.x-arc.x;
7062 point.y=start.y+arc.y;
7065 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7066 return(MagickFalse);
7067 p=(*mvg_info->primitive_info)+mvg_info->offset;
7068 mvg_info->offset+=p->coordinates;
7069 point.x=start.x+segment.x-arc.x;
7070 point.y=start.y+segment.y-arc.y;
7073 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7074 return(MagickFalse);
7075 p=(*mvg_info->primitive_info)+mvg_info->offset;
7076 mvg_info->offset+=p->coordinates;
7077 point.x=start.x+arc.x;
7078 point.y=start.y+segment.y-arc.y;
7081 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7082 return(MagickFalse);
7083 p=(*mvg_info->primitive_info)+mvg_info->offset;
7084 mvg_info->offset+=p->coordinates;
7085 point.x=start.x+arc.x;
7086 point.y=start.y+arc.y;
7089 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7090 return(MagickFalse);
7091 p=(*mvg_info->primitive_info)+mvg_info->offset;
7092 mvg_info->offset+=p->coordinates;
7093 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7094 return(MagickFalse);
7095 p=(*mvg_info->primitive_info)+mvg_info->offset;
7096 if (TracePoint(p,(*mvg_info->primitive_info+offset)->point) == MagickFalse)
7097 return(MagickFalse);
7099 mvg_info->offset=offset;
7100 primitive_info=(*mvg_info->primitive_info)+offset;
7101 primitive_info->coordinates=(size_t) (p-primitive_info);
7102 primitive_info->closed_subpath=MagickTrue;
7103 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7105 p->primitive=primitive_info->primitive;
7111 static MagickBooleanType TraceSquareLinecap(
PrimitiveInfo *primitive_info,
7112 const size_t number_vertices,
const double offset)
7129 for (i=1; i < (ssize_t) number_vertices; i++)
7131 dx=primitive_info[0].point.x-primitive_info[i].point.x;
7132 dy=primitive_info[0].point.y-primitive_info[i].point.y;
7133 if ((fabs((
double) dx) >= MagickEpsilon) ||
7134 (fabs((
double) dy) >= MagickEpsilon))
7137 if (i == (ssize_t) number_vertices)
7138 i=(ssize_t) number_vertices-1L;
7139 distance=hypot((
double) dx,(
double) dy);
7140 primitive_info[0].point.x=(double) (primitive_info[i].point.x+
7141 dx*(distance+offset)/distance);
7142 primitive_info[0].point.y=(double) (primitive_info[i].point.y+
7143 dy*(distance+offset)/distance);
7144 for (j=(ssize_t) number_vertices-2; j >= 0; j--)
7146 dx=primitive_info[number_vertices-1].point.x-primitive_info[j].point.x;
7147 dy=primitive_info[number_vertices-1].point.y-primitive_info[j].point.y;
7148 if ((fabs((
double) dx) >= MagickEpsilon) ||
7149 (fabs((
double) dy) >= MagickEpsilon))
7152 distance=hypot((
double) dx,(
double) dy);
7153 primitive_info[number_vertices-1].point.x=(double) (primitive_info[j].point.x+
7154 dx*(distance+offset)/distance);
7155 primitive_info[number_vertices-1].point.y=(double) (primitive_info[j].point.y+
7156 dy*(distance+offset)/distance);
7163 #define MaxStrokePad (6*BezierQuantum+360)
7164 #define CheckPathExtent(pad_p,pad_q) \
7166 if ((pad_p) > MaxBezierCoordinates) \
7167 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7169 if ((ssize_t) (p+(pad_p)) >= (ssize_t) extent_p) \
7171 if (~extent_p < (pad_p)) \
7172 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7175 extent_p+=(pad_p); \
7176 stroke_p=(PointInfo *) ResizeQuantumMemory(stroke_p,extent_p+ \
7177 MaxStrokePad,sizeof(*stroke_p)); \
7180 if ((pad_q) > MaxBezierCoordinates) \
7181 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7183 if ((ssize_t) (q+(pad_q)) >= (ssize_t) extent_q) \
7185 if (~extent_q < (pad_q)) \
7186 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7189 extent_q+=(pad_q); \
7190 stroke_q=(PointInfo *) ResizeQuantumMemory(stroke_q,extent_q+ \
7191 MaxStrokePad,sizeof(*stroke_q)); \
7194 if ((stroke_p == (PointInfo *) NULL) || (stroke_q == (PointInfo *) NULL)) \
7196 if (stroke_p != (PointInfo *) NULL) \
7197 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7198 if (stroke_q != (PointInfo *) NULL) \
7199 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7200 polygon_primitive=(PrimitiveInfo *) \
7201 RelinquishMagickMemory(polygon_primitive); \
7202 (void) ThrowMagickException(exception,GetMagickModule(), \
7203 ResourceLimitError,"MemoryAllocationFailed","`%s'",""); \
7204 return((PrimitiveInfo *) NULL); \
7208 typedef struct _StrokeSegment
7254 inverse_slope = {0.0, 0.0},
7261 number_vertices=primitive_info->coordinates;
7262 polygon_primitive=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7263 number_vertices+2UL,
sizeof(*polygon_primitive));
7266 (void) ThrowMagickException(exception,GetMagickModule(),
7267 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7270 (void) memcpy(polygon_primitive,primitive_info,(
size_t) number_vertices*
7271 sizeof(*polygon_primitive));
7272 offset.x=primitive_info[number_vertices-1].point.x-primitive_info[0].point.x;
7273 offset.y=primitive_info[number_vertices-1].point.y-primitive_info[0].point.y;
7274 closed_path=(fabs(offset.x) < MagickEpsilon) &&
7275 (fabs(offset.y) < MagickEpsilon) ? MagickTrue : MagickFalse;
7276 if (((draw_info->linejoin == RoundJoin) ||
7277 (draw_info->linejoin == MiterJoin)) && (closed_path != MagickFalse))
7279 polygon_primitive[number_vertices]=primitive_info[1];
7282 polygon_primitive[number_vertices].primitive=UndefinedPrimitive;
7288 for (n=1; n < (ssize_t) number_vertices; n++)
7290 dx.p=polygon_primitive[n].point.x-polygon_primitive[0].point.x;
7291 dy.p=polygon_primitive[n].point.y-polygon_primitive[0].point.y;
7292 if ((fabs(dx.p) >= MagickEpsilon) || (fabs(dy.p) >= MagickEpsilon))
7295 if (n == (ssize_t) number_vertices)
7297 if ((draw_info->linecap != RoundCap) || (closed_path != MagickFalse))
7303 sizeof(*stroke_polygon));
7304 stroke_polygon[0]=polygon_primitive[0];
7305 stroke_polygon[0].coordinates=0;
7308 return(stroke_polygon);
7310 n=(ssize_t) number_vertices-1L;
7312 extent_p=2*number_vertices;
7313 extent_q=2*number_vertices;
7314 stroke_p=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_p+MaxStrokePad,
7316 stroke_q=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_q+MaxStrokePad,
7321 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7323 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7325 RelinquishMagickMemory(polygon_primitive);
7326 (void) ThrowMagickException(exception,GetMagickModule(),
7327 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7331 inverse_slope.p=0.0;
7332 if (fabs(dx.p) < MagickEpsilon)
7335 slope.p=dy.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7337 slope.p=dy.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7340 if (fabs(dy.p) < MagickEpsilon)
7343 inverse_slope.p=dx.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7345 inverse_slope.p=dx.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7350 inverse_slope.p=(-1.0*PerceptibleReciprocal(slope.p));
7352 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
7353 miterlimit=(double) (draw_info->miterlimit*draw_info->miterlimit*mid*mid);
7354 if ((draw_info->linecap == SquareCap) && (closed_path == MagickFalse))
7355 (void) TraceSquareLinecap(polygon_primitive,number_vertices,mid);
7356 offset.x=sqrt((
double) (mid*mid/(inverse_slope.p*inverse_slope.p+1.0)));
7357 offset.y=(double) (offset.x*inverse_slope.p);
7358 if ((dy.p*offset.x-dx.p*offset.y) > 0.0)
7360 box_p[0].x=polygon_primitive[0].point.x-offset.x;
7361 box_p[0].y=polygon_primitive[0].point.y-offset.x*inverse_slope.p;
7362 box_p[1].x=polygon_primitive[n].point.x-offset.x;
7363 box_p[1].y=polygon_primitive[n].point.y-offset.x*inverse_slope.p;
7364 box_q[0].x=polygon_primitive[0].point.x+offset.x;
7365 box_q[0].y=polygon_primitive[0].point.y+offset.x*inverse_slope.p;
7366 box_q[1].x=polygon_primitive[n].point.x+offset.x;
7367 box_q[1].y=polygon_primitive[n].point.y+offset.x*inverse_slope.p;
7371 box_p[0].x=polygon_primitive[0].point.x+offset.x;
7372 box_p[0].y=polygon_primitive[0].point.y+offset.y;
7373 box_p[1].x=polygon_primitive[n].point.x+offset.x;
7374 box_p[1].y=polygon_primitive[n].point.y+offset.y;
7375 box_q[0].x=polygon_primitive[0].point.x-offset.x;
7376 box_q[0].y=polygon_primitive[0].point.y-offset.y;
7377 box_q[1].x=polygon_primitive[n].point.x-offset.x;
7378 box_q[1].y=polygon_primitive[n].point.y-offset.y;
7385 stroke_q[p++]=box_q[0];
7386 stroke_p[q++]=box_p[0];
7387 for (i=(ssize_t) n+1; i < (ssize_t) number_vertices; i++)
7392 dx.q=polygon_primitive[i].point.x-polygon_primitive[n].point.x;
7393 dy.q=polygon_primitive[i].point.y-polygon_primitive[n].point.y;
7394 dot_product=dx.q*dx.q+dy.q*dy.q;
7395 if (dot_product < 0.25)
7398 inverse_slope.q=0.0;
7399 if (fabs(dx.q) < MagickEpsilon)
7402 slope.q=dy.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7404 slope.q=dy.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7407 if (fabs(dy.q) < MagickEpsilon)
7410 inverse_slope.q=dx.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7412 inverse_slope.q=dx.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7417 inverse_slope.q=(-1.0*PerceptibleReciprocal(slope.q));
7419 offset.x=sqrt((
double) (mid*mid/(inverse_slope.q*inverse_slope.q+1.0)));
7420 offset.y=(double) (offset.x*inverse_slope.q);
7421 dot_product=dy.q*offset.x-dx.q*offset.y;
7422 if (dot_product > 0.0)
7424 box_p[2].x=polygon_primitive[n].point.x-offset.x;
7425 box_p[2].y=polygon_primitive[n].point.y-offset.y;
7426 box_p[3].x=polygon_primitive[i].point.x-offset.x;
7427 box_p[3].y=polygon_primitive[i].point.y-offset.y;
7428 box_q[2].x=polygon_primitive[n].point.x+offset.x;
7429 box_q[2].y=polygon_primitive[n].point.y+offset.y;
7430 box_q[3].x=polygon_primitive[i].point.x+offset.x;
7431 box_q[3].y=polygon_primitive[i].point.y+offset.y;
7435 box_p[2].x=polygon_primitive[n].point.x+offset.x;
7436 box_p[2].y=polygon_primitive[n].point.y+offset.y;
7437 box_p[3].x=polygon_primitive[i].point.x+offset.x;
7438 box_p[3].y=polygon_primitive[i].point.y+offset.y;
7439 box_q[2].x=polygon_primitive[n].point.x-offset.x;
7440 box_q[2].y=polygon_primitive[n].point.y-offset.y;
7441 box_q[3].x=polygon_primitive[i].point.x-offset.x;
7442 box_q[3].y=polygon_primitive[i].point.y-offset.y;
7444 if (fabs((
double) (slope.p-slope.q)) < MagickEpsilon)
7451 box_p[4].x=(double) ((slope.p*box_p[0].x-box_p[0].y-slope.q*box_p[3].x+
7452 box_p[3].y)/(slope.p-slope.q));
7453 box_p[4].y=(double) (slope.p*(box_p[4].x-box_p[0].x)+box_p[0].y);
7454 box_q[4].x=(double) ((slope.p*box_q[0].x-box_q[0].y-slope.q*box_q[3].x+
7455 box_q[3].y)/(slope.p-slope.q));
7456 box_q[4].y=(double) (slope.p*(box_q[4].x-box_q[0].x)+box_q[0].y);
7458 CheckPathExtent(MaxStrokePad,MaxStrokePad);
7459 dot_product=dx.q*dy.p-dx.p*dy.q;
7460 if (dot_product <= 0.0)
7461 switch (draw_info->linejoin)
7465 stroke_q[q++]=box_q[1];
7466 stroke_q[q++]=box_q[2];
7467 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7468 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7469 if (dot_product <= miterlimit)
7470 stroke_p[p++]=box_p[4];
7473 stroke_p[p++]=box_p[1];
7474 stroke_p[p++]=box_p[2];
7480 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7481 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7482 if (dot_product <= miterlimit)
7484 stroke_q[q++]=box_q[4];
7485 stroke_p[p++]=box_p[4];
7489 stroke_q[q++]=box_q[1];
7490 stroke_q[q++]=box_q[2];
7491 stroke_p[p++]=box_p[1];
7492 stroke_p[p++]=box_p[2];
7498 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7499 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7500 if (dot_product <= miterlimit)
7501 stroke_p[p++]=box_p[4];
7504 stroke_p[p++]=box_p[1];
7505 stroke_p[p++]=box_p[2];
7507 center=polygon_primitive[n].point;
7508 theta.p=atan2(box_q[1].y-center.y,box_q[1].x-center.x);
7509 theta.q=atan2(box_q[2].y-center.y,box_q[2].x-center.x);
7510 if (theta.q < theta.p)
7511 theta.q+=2.0*MagickPI;
7512 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.q-
7513 theta.p)/(2.0*sqrt(PerceptibleReciprocal(mid))))));
7514 CheckPathExtent(MaxStrokePad,arc_segments+MaxStrokePad);
7515 stroke_q[q].x=box_q[1].x;
7516 stroke_q[q].y=box_q[1].y;
7518 for (j=1; j < (ssize_t) arc_segments; j++)
7520 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7521 stroke_q[q].x=(double) (center.x+mid*cos(fmod((
double)
7522 (theta.p+delta_theta),DegreesToRadians(360.0))));
7523 stroke_q[q].y=(double) (center.y+mid*sin(fmod((
double)
7524 (theta.p+delta_theta),DegreesToRadians(360.0))));
7527 stroke_q[q++]=box_q[2];
7534 switch (draw_info->linejoin)
7538 stroke_p[p++]=box_p[1];
7539 stroke_p[p++]=box_p[2];
7540 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7541 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7542 if (dot_product <= miterlimit)
7543 stroke_q[q++]=box_q[4];
7546 stroke_q[q++]=box_q[1];
7547 stroke_q[q++]=box_q[2];
7553 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7554 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7555 if (dot_product <= miterlimit)
7557 stroke_q[q++]=box_q[4];
7558 stroke_p[p++]=box_p[4];
7562 stroke_q[q++]=box_q[1];
7563 stroke_q[q++]=box_q[2];
7564 stroke_p[p++]=box_p[1];
7565 stroke_p[p++]=box_p[2];
7571 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7572 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7573 if (dot_product <= miterlimit)
7574 stroke_q[q++]=box_q[4];
7577 stroke_q[q++]=box_q[1];
7578 stroke_q[q++]=box_q[2];
7580 center=polygon_primitive[n].point;
7581 theta.p=atan2(box_p[1].y-center.y,box_p[1].x-center.x);
7582 theta.q=atan2(box_p[2].y-center.y,box_p[2].x-center.x);
7583 if (theta.p < theta.q)
7584 theta.p+=2.0*MagickPI;
7585 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.p-
7586 theta.q)/(2.0*sqrt((
double) (PerceptibleReciprocal(mid)))))));
7587 CheckPathExtent(arc_segments+MaxStrokePad,MaxStrokePad);
7588 stroke_p[p++]=box_p[1];
7589 for (j=1; j < (ssize_t) arc_segments; j++)
7591 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7592 stroke_p[p].x=(double) (center.x+mid*cos(fmod((
double)
7593 (theta.p+delta_theta),DegreesToRadians(360.0))));
7594 stroke_p[p].y=(double) (center.y+mid*sin(fmod((
double)
7595 (theta.p+delta_theta),DegreesToRadians(360.0))));
7598 stroke_p[p++]=box_p[2];
7605 inverse_slope.p=inverse_slope.q;
7614 stroke_p[p++]=box_p[1];
7615 stroke_q[q++]=box_q[1];
7619 stroke_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7620 (p+q+2UL*closed_path+2UL),
sizeof(*stroke_polygon));
7623 (void) ThrowMagickException(exception,GetMagickModule(),
7624 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7625 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7626 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7629 return(stroke_polygon);
7631 for (i=0; i < (ssize_t) p; i++)
7633 stroke_polygon[i]=polygon_primitive[0];
7634 stroke_polygon[i].point=stroke_p[i];
7636 if (closed_path != MagickFalse)
7638 stroke_polygon[i]=polygon_primitive[0];
7639 stroke_polygon[i].point=stroke_polygon[0].point;
7642 for ( ; i < (ssize_t) (p+q+closed_path); i++)
7644 stroke_polygon[i]=polygon_primitive[0];
7645 stroke_polygon[i].point=stroke_q[p+q+closed_path-(i+1)];
7647 if (closed_path != MagickFalse)
7649 stroke_polygon[i]=polygon_primitive[0];
7650 stroke_polygon[i].point=stroke_polygon[p+closed_path].point;
7653 stroke_polygon[i]=polygon_primitive[0];
7654 stroke_polygon[i].point=stroke_polygon[0].point;
7656 stroke_polygon[i].primitive=UndefinedPrimitive;
7657 stroke_polygon[0].coordinates=(size_t) (p+q+2*closed_path+1);
7658 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7659 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7660 polygon_primitive=(
PrimitiveInfo *) RelinquishMagickMemory(polygon_primitive);
7661 return(stroke_polygon);