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 BezierQuantum 200
96 #define PrimitiveExtentPad 4296.0
97 #define MaxBezierCoordinates 67108864
98 #define ThrowPointExpectedException(image,token) \
100 (void) ThrowMagickException(&(image)->exception,GetMagickModule(),DrawError, \
101 "NonconformingDrawingPrimitiveDefinition","`%s'",token); \
102 status=MagickFalse; \
192 *DrawClippingMask(
Image *,
const DrawInfo *,
const char *,
const char *,
195 static MagickBooleanType
200 const double,
const MagickBooleanType,
const MagickBooleanType),
201 TraceBezier(
MVGInfo *,
const size_t),
207 TraceSquareLinecap(
PrimitiveInfo *,
const size_t,
const double);
233 MagickExport
DrawInfo *AcquireDrawInfo(
void)
238 draw_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*draw_info));
239 GetDrawInfo((
ImageInfo *) NULL,draw_info);
276 clone_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*clone_info));
277 GetDrawInfo(image_info,clone_info);
280 if (draw_info->id != (
char *) NULL)
281 (void) CloneString(&clone_info->id,draw_info->id);
282 if (draw_info->primitive != (
char *) NULL)
283 (
void) CloneString(&clone_info->primitive,draw_info->primitive);
284 if (draw_info->geometry != (
char *) NULL)
285 (void) CloneString(&clone_info->geometry,draw_info->geometry);
286 clone_info->compliance=draw_info->compliance;
287 clone_info->viewbox=draw_info->viewbox;
288 clone_info->affine=draw_info->affine;
289 clone_info->gravity=draw_info->gravity;
290 clone_info->fill=draw_info->fill;
291 clone_info->stroke=draw_info->stroke;
292 clone_info->stroke_width=draw_info->stroke_width;
293 if (draw_info->fill_pattern != (
Image *) NULL)
294 clone_info->fill_pattern=CloneImage(draw_info->fill_pattern,0,0,MagickTrue,
295 &draw_info->fill_pattern->exception);
297 if (draw_info->tile != (
Image *) NULL)
298 clone_info->fill_pattern=CloneImage(draw_info->tile,0,0,MagickTrue,
299 &draw_info->tile->exception);
300 clone_info->tile=NewImageList();
301 if (draw_info->stroke_pattern != (
Image *) NULL)
302 clone_info->stroke_pattern=CloneImage(draw_info->stroke_pattern,0,0,
303 MagickTrue,&draw_info->stroke_pattern->exception);
304 clone_info->stroke_antialias=draw_info->stroke_antialias;
305 clone_info->text_antialias=draw_info->text_antialias;
306 clone_info->fill_rule=draw_info->fill_rule;
307 clone_info->linecap=draw_info->linecap;
308 clone_info->linejoin=draw_info->linejoin;
309 clone_info->miterlimit=draw_info->miterlimit;
310 clone_info->dash_offset=draw_info->dash_offset;
311 clone_info->decorate=draw_info->decorate;
312 clone_info->compose=draw_info->compose;
313 if (draw_info->text != (
char *) NULL)
314 (void) CloneString(&clone_info->text,draw_info->text);
315 if (draw_info->font != (
char *) NULL)
316 (
void) CloneString(&clone_info->font,draw_info->font);
317 if (draw_info->metrics != (
char *) NULL)
318 (void) CloneString(&clone_info->metrics,draw_info->metrics);
319 if (draw_info->family != (
char *) NULL)
320 (
void) CloneString(&clone_info->family,draw_info->family);
321 clone_info->style=draw_info->style;
322 clone_info->stretch=draw_info->stretch;
323 clone_info->weight=draw_info->weight;
324 if (draw_info->encoding != (
char *) NULL)
325 (void) CloneString(&clone_info->encoding,draw_info->encoding);
326 clone_info->pointsize=draw_info->pointsize;
327 clone_info->kerning=draw_info->kerning;
328 clone_info->interline_spacing=draw_info->interline_spacing;
329 clone_info->interword_spacing=draw_info->interword_spacing;
330 clone_info->direction=draw_info->direction;
331 if (draw_info->density != (
char *) NULL)
332 (
void) CloneString(&clone_info->density,draw_info->density);
333 clone_info->align=draw_info->align;
334 clone_info->undercolor=draw_info->undercolor;
335 clone_info->border_color=draw_info->border_color;
336 if (draw_info->server_name != (
char *) NULL)
337 (void) CloneString(&clone_info->server_name,draw_info->server_name);
338 if (draw_info->dash_pattern != (
double *) NULL)
343 for (x=0; fabs(draw_info->dash_pattern[x]) >= MagickEpsilon; x++) ;
344 clone_info->dash_pattern=(
double *) AcquireQuantumMemory((
size_t) (2*x+2),
345 sizeof(*clone_info->dash_pattern));
346 if (clone_info->dash_pattern == (
double *) NULL)
347 ThrowFatalException(ResourceLimitFatalError,
348 "UnableToAllocateDashPattern");
349 (void) memset(clone_info->dash_pattern,0,(
size_t) (2*x+2)*
350 sizeof(*clone_info->dash_pattern));
351 (void) memcpy(clone_info->dash_pattern,draw_info->dash_pattern,(
size_t)
352 (x+1)*
sizeof(*clone_info->dash_pattern));
354 clone_info->gradient=draw_info->gradient;
355 if (draw_info->gradient.stops != (
StopInfo *) NULL)
360 number_stops=clone_info->gradient.number_stops;
361 clone_info->gradient.stops=(
StopInfo *) AcquireQuantumMemory((
size_t)
362 number_stops,
sizeof(*clone_info->gradient.stops));
363 if (clone_info->gradient.stops == (
StopInfo *) NULL)
364 ThrowFatalException(ResourceLimitFatalError,
365 "UnableToAllocateDashPattern");
366 (void) memcpy(clone_info->gradient.stops,draw_info->gradient.stops,
367 (
size_t) number_stops*
sizeof(*clone_info->gradient.stops));
369 clone_info->bounds=draw_info->bounds;
370 clone_info->fill_opacity=draw_info->fill_opacity;
371 clone_info->stroke_opacity=draw_info->stroke_opacity;
372 clone_info->element_reference=draw_info->element_reference;
373 clone_info->clip_path=draw_info->clip_path;
374 clone_info->clip_units=draw_info->clip_units;
375 if (draw_info->clip_mask != (
char *) NULL)
376 (
void) CloneString(&clone_info->clip_mask,draw_info->clip_mask);
377 if (draw_info->clipping_mask != (
Image *) NULL)
378 clone_info->clipping_mask=CloneImage(draw_info->clipping_mask,0,0,
379 MagickTrue,&draw_info->clipping_mask->exception);
380 if (draw_info->composite_mask != (
Image *) NULL)
381 clone_info->composite_mask=CloneImage(draw_info->composite_mask,0,0,
382 MagickTrue,&draw_info->composite_mask->exception);
383 clone_info->render=draw_info->render;
384 clone_info->debug=draw_info->debug;
425 if (polygon_info->edges != (
EdgeInfo *) NULL)
427 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
428 if (polygon_info->edges[i].points != (
PointInfo *) NULL)
429 polygon_info->edges[i].points=(
PointInfo *)
430 RelinquishMagickMemory(polygon_info->edges[i].points);
431 polygon_info->edges=(
EdgeInfo *) RelinquishMagickMemory(
432 polygon_info->edges);
434 return((
PolygonInfo *) RelinquishMagickMemory(polygon_info));
437 #if defined(__cplusplus) || defined(c_plusplus)
441 static int DrawCompareEdges(
const void *p_edge,
const void *q_edge)
443 #define DrawCompareEdge(p,q) \
445 if (((p)-(q)) < 0.0) \
447 if (((p)-(q)) > 0.0) \
458 p=((
const EdgeInfo *) p_edge)->points;
459 q=((
const EdgeInfo *) q_edge)->points;
460 DrawCompareEdge(p[0].y,q[0].y);
461 DrawCompareEdge(p[0].x,q[0].x);
462 DrawCompareEdge((p[1].x-p[0].x)*(q[1].y-q[0].y),(p[1].y-p[0].y)*
464 DrawCompareEdge(p[1].y,q[1].y);
465 DrawCompareEdge(p[1].x,q[1].x);
469 #if defined(__cplusplus) || defined(c_plusplus)
473 static void LogPolygonInfo(
const PolygonInfo *polygon_info)
482 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin active-edge");
483 p=polygon_info->edges;
484 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
486 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" edge %.20g:",
488 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" direction: %s",
489 p->direction != MagickFalse ?
"down" :
"up");
490 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" ghostline: %s",
491 p->ghostline != MagickFalse ?
"transparent" :
"opaque");
492 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
493 " bounds: %g,%g - %g,%g",p->bounds.x1,p->bounds.y1,
494 p->bounds.x2,p->bounds.y2);
495 for (j=0; j < (ssize_t) p->number_points; j++)
496 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %g,%g",
497 p->points[j].x,p->points[j].y);
500 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end active-edge");
503 static void ReversePoints(
PointInfo *points,
const size_t number_points)
511 for (i=0; i < (ssize_t) (number_points >> 1); i++)
514 points[i]=points[number_points-(i+1)];
515 points[number_points-(i+1)]=point;
551 polygon_info=(
PolygonInfo *) AcquireMagickMemory(
sizeof(*polygon_info));
554 (void) ThrowMagickException(exception,GetMagickModule(),
555 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
559 polygon_info->edges=(
EdgeInfo *) AcquireQuantumMemory(number_edges,
560 sizeof(*polygon_info->edges));
561 if (polygon_info->edges == (
EdgeInfo *) NULL)
563 (void) ThrowMagickException(exception,GetMagickModule(),
564 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
565 return(DestroyPolygonInfo(polygon_info));
567 (void) memset(polygon_info->edges,0,number_edges*
568 sizeof(*polygon_info->edges));
571 ghostline=MagickFalse;
575 (void) memset(&point,0,
sizeof(point));
576 (void) memset(&bounds,0,
sizeof(bounds));
577 polygon_info->edges[edge].number_points=(size_t) n;
578 polygon_info->edges[edge].scanline=0.0;
579 polygon_info->edges[edge].highwater=0;
580 polygon_info->edges[edge].ghostline=ghostline;
581 polygon_info->edges[edge].direction=(ssize_t) direction;
582 polygon_info->edges[edge].points=points;
583 polygon_info->edges[edge].bounds=bounds;
584 polygon_info->number_edges=0;
585 for (i=0; path_info[i].code != EndCode; i++)
587 if ((path_info[i].code == MoveToCode) || (path_info[i].code == OpenCode) ||
588 (path_info[i].code == GhostlineCode))
593 if ((points != (
PointInfo *) NULL) && (n >= 2))
595 if (edge == number_edges)
598 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
599 polygon_info->edges,(
size_t) number_edges,
600 sizeof(*polygon_info->edges));
601 if (polygon_info->edges == (
EdgeInfo *) NULL)
603 (void) ThrowMagickException(exception,GetMagickModule(),
604 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
605 points=(
PointInfo *) RelinquishMagickMemory(points);
606 return(DestroyPolygonInfo(polygon_info));
609 polygon_info->edges[edge].number_points=(size_t) n;
610 polygon_info->edges[edge].scanline=(-1.0);
611 polygon_info->edges[edge].highwater=0;
612 polygon_info->edges[edge].ghostline=ghostline;
613 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
615 ReversePoints(points,(
size_t) n);
616 polygon_info->edges[edge].points=points;
617 polygon_info->edges[edge].bounds=bounds;
618 polygon_info->edges[edge].bounds.y1=points[0].y;
619 polygon_info->edges[edge].bounds.y2=points[n-1].y;
621 ghostline=MagickFalse;
623 polygon_info->number_edges=edge;
628 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
632 (void) ThrowMagickException(exception,GetMagickModule(),
633 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
634 return(DestroyPolygonInfo(polygon_info));
637 ghostline=path_info[i].code == GhostlineCode ? MagickTrue : MagickFalse;
638 point=path_info[i].point;
649 next_direction=((path_info[i].point.y > point.y) ||
650 ((fabs(path_info[i].point.y-point.y) < MagickEpsilon) &&
651 (path_info[i].point.x > point.x))) ? 1 : -1;
652 if ((points != (
PointInfo *) NULL) && (direction != 0) &&
653 (direction != next_direction))
659 if (edge == number_edges)
662 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
663 polygon_info->edges,(
size_t) number_edges,
664 sizeof(*polygon_info->edges));
665 if (polygon_info->edges == (
EdgeInfo *) NULL)
667 (void) ThrowMagickException(exception,GetMagickModule(),
668 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
669 points=(
PointInfo *) RelinquishMagickMemory(points);
670 return(DestroyPolygonInfo(polygon_info));
673 polygon_info->edges[edge].number_points=(size_t) n;
674 polygon_info->edges[edge].scanline=(-1.0);
675 polygon_info->edges[edge].highwater=0;
676 polygon_info->edges[edge].ghostline=ghostline;
677 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
679 ReversePoints(points,(
size_t) n);
680 polygon_info->edges[edge].points=points;
681 polygon_info->edges[edge].bounds=bounds;
682 polygon_info->edges[edge].bounds.y1=points[0].y;
683 polygon_info->edges[edge].bounds.y2=points[n-1].y;
684 polygon_info->number_edges=edge+1;
687 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
691 (void) ThrowMagickException(exception,GetMagickModule(),
692 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
693 return(DestroyPolygonInfo(polygon_info));
696 ghostline=MagickFalse;
702 direction=next_direction;
705 if (n == (ssize_t) number_points)
708 points=(
PointInfo *) ResizeQuantumMemory(points,(
size_t) number_points,
712 (void) ThrowMagickException(exception,GetMagickModule(),
713 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
714 return(DestroyPolygonInfo(polygon_info));
717 point=path_info[i].point;
719 if (point.x < bounds.x1)
721 if (point.x > bounds.x2)
728 points=(
PointInfo *) RelinquishMagickMemory(points);
731 if (edge == number_edges)
734 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
735 polygon_info->edges,(
size_t) number_edges,
736 sizeof(*polygon_info->edges));
737 if (polygon_info->edges == (
EdgeInfo *) NULL)
739 (void) ThrowMagickException(exception,GetMagickModule(),
740 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
741 return(DestroyPolygonInfo(polygon_info));
744 polygon_info->edges[edge].number_points=(size_t) n;
745 polygon_info->edges[edge].scanline=(-1.0);
746 polygon_info->edges[edge].highwater=0;
747 polygon_info->edges[edge].ghostline=ghostline;
748 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
750 ReversePoints(points,(
size_t) n);
751 polygon_info->edges[edge].points=points;
752 polygon_info->edges[edge].bounds=bounds;
753 polygon_info->edges[edge].bounds.y1=points[0].y;
754 polygon_info->edges[edge].bounds.y2=points[n-1].y;
756 ghostline=MagickFalse;
758 polygon_info->number_edges=edge;
761 polygon_info->number_edges=edge;
762 polygon_info->number_edges=edge;
763 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(polygon_info->edges,
764 polygon_info->number_edges,
sizeof(*polygon_info->edges));
765 if (polygon_info->edges == (
EdgeInfo *) NULL)
767 (void) ThrowMagickException(exception,GetMagickModule(),
768 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
769 return(DestroyPolygonInfo(polygon_info));
771 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
776 edge_info=polygon_info->edges+i;
777 edge_info->points=(
PointInfo *) ResizeQuantumMemory(edge_info->points,
778 edge_info->number_points,
sizeof(*edge_info->points));
779 if (edge_info->points == (
PointInfo *) NULL)
781 (void) ThrowMagickException(exception,GetMagickModule(),
782 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
783 return(DestroyPolygonInfo(polygon_info));
786 qsort(polygon_info->edges,(
size_t) polygon_info->number_edges,
787 sizeof(*polygon_info->edges),DrawCompareEdges);
788 if ((GetLogEventMask() & DrawEvent) != 0)
789 LogPolygonInfo(polygon_info);
790 return(polygon_info);
824 static void LogPathInfo(
const PathInfo *path_info)
829 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin vector-path");
830 for (p=path_info; p->code != EndCode; p++)
831 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
832 " %g,%g %s",p->point.x,p->point.y,p->code == GhostlineCode ?
833 "moveto ghostline" : p->code == OpenCode ?
"moveto open" :
834 p->code == MoveToCode ?
"moveto" : p->code == LineToCode ?
"lineto" :
836 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end vector-path");
839 static PathInfo *ConvertPrimitiveToPath(
864 magick_unreferenced(draw_info);
869 switch (primitive_info->primitive)
880 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
881 path_info=(
PathInfo *) AcquireQuantumMemory((
size_t) (3UL*i+1UL),
885 (void) ThrowMagickException(exception,GetMagickModule(),
886 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
890 closed_subpath=MagickFalse;
897 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
900 if (coordinates <= 0)
905 coordinates=(ssize_t) primitive_info[i].coordinates;
906 p=primitive_info[i].point;
909 closed_subpath=primitive_info[i].closed_subpath;
912 if ((code == MoveToCode) || (coordinates <= 0) ||
913 (fabs(q.x-primitive_info[i].point.x) >= MagickEpsilon) ||
914 (fabs(q.y-primitive_info[i].point.y) >= MagickEpsilon))
919 path_info[n].code=code;
920 path_info[n].point=primitive_info[i].point;
921 q=primitive_info[i].point;
926 if (closed_subpath != MagickFalse)
928 closed_subpath=MagickFalse;
934 path_info[start].code=OpenCode;
935 path_info[n].code=GhostlineCode;
936 path_info[n].point=primitive_info[i].point;
938 path_info[n].code=LineToCode;
939 path_info[n].point=p;
942 path_info[n].code=EndCode;
943 path_info[n].point.x=0.0;
944 path_info[n].point.y=0.0;
945 if (IsEventLogging() != MagickFalse)
946 LogPathInfo(path_info);
947 path_info=(
PathInfo *) ResizeQuantumMemory(path_info,(
size_t) (n+1),
976 assert(draw_info != (
DrawInfo *) NULL);
977 assert(draw_info->signature == MagickCoreSignature);
978 if (IsEventLogging() != MagickFalse)
979 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
980 if (draw_info->id != (
char *) NULL)
981 draw_info->id=DestroyString(draw_info->id);
982 if (draw_info->primitive != (
char *) NULL)
983 draw_info->primitive=DestroyString(draw_info->primitive);
984 if (draw_info->text != (
char *) NULL)
985 draw_info->text=DestroyString(draw_info->text);
986 if (draw_info->geometry != (
char *) NULL)
987 draw_info->geometry=DestroyString(draw_info->geometry);
988 if (draw_info->tile != (
Image *) NULL)
989 draw_info->tile=DestroyImage(draw_info->tile);
990 if (draw_info->fill_pattern != (
Image *) NULL)
991 draw_info->fill_pattern=DestroyImage(draw_info->fill_pattern);
992 if (draw_info->stroke_pattern != (
Image *) NULL)
993 draw_info->stroke_pattern=DestroyImage(draw_info->stroke_pattern);
994 if (draw_info->font != (
char *) NULL)
995 draw_info->font=DestroyString(draw_info->font);
996 if (draw_info->metrics != (
char *) NULL)
997 draw_info->metrics=DestroyString(draw_info->metrics);
998 if (draw_info->family != (
char *) NULL)
999 draw_info->family=DestroyString(draw_info->family);
1000 if (draw_info->encoding != (
char *) NULL)
1001 draw_info->encoding=DestroyString(draw_info->encoding);
1002 if (draw_info->density != (
char *) NULL)
1003 draw_info->density=DestroyString(draw_info->density);
1004 if (draw_info->server_name != (
char *) NULL)
1005 draw_info->server_name=(
char *)
1006 RelinquishMagickMemory(draw_info->server_name);
1007 if (draw_info->dash_pattern != (
double *) NULL)
1008 draw_info->dash_pattern=(
double *) RelinquishMagickMemory(
1009 draw_info->dash_pattern);
1010 if (draw_info->gradient.stops != (
StopInfo *) NULL)
1011 draw_info->gradient.stops=(
StopInfo *) RelinquishMagickMemory(
1012 draw_info->gradient.stops);
1013 if (draw_info->clip_mask != (
char *) NULL)
1014 draw_info->clip_mask=DestroyString(draw_info->clip_mask);
1015 if (draw_info->clipping_mask != (
Image *) NULL)
1016 draw_info->clipping_mask=DestroyImage(draw_info->clipping_mask);
1017 if (draw_info->composite_mask != (
Image *) NULL)
1018 draw_info->composite_mask=DestroyImage(draw_info->composite_mask);
1019 draw_info->signature=(~MagickCoreSignature);
1020 draw_info=(
DrawInfo *) RelinquishMagickMemory(draw_info);
1069 inverse_edge.x1=edge->x1;
1070 inverse_edge.y1=edge->y1;
1071 inverse_edge.x2=edge->x2;
1072 inverse_edge.y2=edge->y2;
1073 z=affine->ry*y+affine->tx;
1074 if (affine->sx >= MagickEpsilon)
1076 intercept=(-z/affine->sx);
1078 if (x > inverse_edge.x1)
1080 intercept=(-z+(double) image->columns)/affine->sx;
1082 if (x < inverse_edge.x2)
1086 if (affine->sx < -MagickEpsilon)
1088 intercept=(-z+(double) image->columns)/affine->sx;
1090 if (x > inverse_edge.x1)
1092 intercept=(-z/affine->sx);
1094 if (x < inverse_edge.x2)
1098 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->columns))
1100 inverse_edge.x2=edge->x1;
1101 return(inverse_edge);
1106 z=affine->sy*y+affine->ty;
1107 if (affine->rx >= MagickEpsilon)
1109 intercept=(-z/affine->rx);
1111 if (x > inverse_edge.x1)
1113 intercept=(-z+(double) image->rows)/affine->rx;
1115 if (x < inverse_edge.x2)
1119 if (affine->rx < -MagickEpsilon)
1121 intercept=(-z+(double) image->rows)/affine->rx;
1123 if (x > inverse_edge.x1)
1125 intercept=(-z/affine->rx);
1127 if (x < inverse_edge.x2)
1131 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->rows))
1133 inverse_edge.x2=edge->x2;
1134 return(inverse_edge);
1136 return(inverse_edge);
1147 determinant=PerceptibleReciprocal(affine->sx*affine->sy-affine->rx*
1149 inverse_affine.sx=determinant*affine->sy;
1150 inverse_affine.rx=determinant*(-affine->rx);
1151 inverse_affine.ry=determinant*(-affine->ry);
1152 inverse_affine.sy=determinant*affine->sx;
1153 inverse_affine.tx=(-affine->tx)*inverse_affine.sx-affine->ty*
1155 inverse_affine.ty=(-affine->tx)*inverse_affine.rx-affine->ty*
1157 return(inverse_affine);
1160 MagickExport MagickBooleanType DrawAffineImage(
Image *image,
1199 assert(image != (
Image *) NULL);
1200 assert(image->signature == MagickCoreSignature);
1201 assert(source != (
const Image *) NULL);
1202 assert(source->signature == MagickCoreSignature);
1203 if (IsEventLogging() != MagickFalse)
1204 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1208 extent[1].x=(double) source->columns-1.0;
1210 extent[2].x=(
double) source->columns-1.0;
1211 extent[2].y=(double) source->rows-1.0;
1213 extent[3].y=(
double) source->rows-1.0;
1214 for (i=0; i < 4; i++)
1217 extent[i].x=point.x*affine->sx+point.y*affine->ry+affine->tx;
1218 extent[i].y=point.x*affine->rx+point.y*affine->sy+affine->ty;
1222 for (i=1; i < 4; i++)
1224 if (min.x > extent[i].x)
1226 if (min.y > extent[i].y)
1228 if (max.x < extent[i].x)
1230 if (max.y < extent[i].y)
1236 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
1237 return(MagickFalse);
1239 edge.x1=MagickMax(min.x,0.0);
1240 edge.y1=MagickMax(min.y,0.0);
1241 edge.x2=MagickMin(max.x,(
double) image->columns-1.0);
1242 edge.y2=MagickMin(max.y,(
double) image->rows-1.0);
1243 inverse_affine=InverseAffineMatrix(affine);
1244 GetMagickPixelPacket(image,&zero);
1245 exception=(&image->exception);
1246 start=CastDoubleToLong(ceil(edge.y1-0.5));
1247 stop=CastDoubleToLong(floor(edge.y2+0.5));
1248 source_view=AcquireVirtualCacheView(source,exception);
1249 image_view=AcquireAuthenticCacheView(image,exception);
1250 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1251 #pragma omp parallel for schedule(static) shared(status) \
1252 magick_number_threads(source,image,stop-start,1)
1254 for (y=start; y <= stop; y++)
1257 *magick_restrict indexes;
1276 if (status == MagickFalse)
1278 inverse_edge=AffineEdge(source,&inverse_affine,(
double) y,&edge);
1279 if (inverse_edge.x2 < inverse_edge.x1)
1281 q=GetCacheViewAuthenticPixels(image_view,CastDoubleToLong(
1282 ceil(inverse_edge.x1-0.5)),y,(
size_t) CastDoubleToLong(floor(
1283 inverse_edge.x2+0.5)-ceil(inverse_edge.x1-0.5)+1),1,exception);
1286 indexes=GetCacheViewAuthenticIndexQueue(image_view);
1290 for (x=CastDoubleToLong(ceil(inverse_edge.x1-0.5));
1291 x <= CastDoubleToLong(floor(inverse_edge.x2+0.5)); x++)
1293 point.x=(double) x*inverse_affine.sx+y*inverse_affine.ry+
1295 point.y=(
double) x*inverse_affine.rx+y*inverse_affine.sy+
1297 status=InterpolateMagickPixelPacket(source,source_view,
1298 UndefinedInterpolatePixel,point.x,point.y,&pixel,exception);
1299 if (status == MagickFalse)
1301 SetMagickPixelPacket(image,q,indexes+x_offset,&composite);
1302 MagickPixelCompositeOver(&pixel,pixel.opacity,&composite,
1303 composite.opacity,&composite);
1304 SetPixelPacket(image,&composite,q,indexes+x_offset);
1308 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1311 source_view=DestroyCacheView(source_view);
1312 image_view=DestroyCacheView(image_view);
1345 static MagickBooleanType DrawBoundingRectangles(
Image *image,
1374 (void) memset(primitive_info,0,
sizeof(primitive_info));
1375 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1376 status=QueryColorDatabase(
"#0000",&clone_info->fill,&image->exception);
1377 if (status == MagickFalse)
1379 clone_info=DestroyDrawInfo(clone_info);
1380 return(MagickFalse);
1384 if (clone_info->density != (
char *) NULL)
1392 flags=ParseGeometry(clone_info->density,&geometry_info);
1393 if ((flags & RhoValue) != 0)
1394 resolution.x=geometry_info.rho;
1395 resolution.y=resolution.x;
1396 if ((flags & SigmaValue) != 0)
1397 resolution.y=geometry_info.sigma;
1399 mid=(resolution.x/96.0)*ExpandAffine(&clone_info->affine)*
1400 clone_info->stroke_width/2.0;
1407 bounds=polygon_info->edges[0].bounds;
1408 for (i=1; i < (ssize_t) polygon_info->number_edges; i++)
1410 if (polygon_info->edges[i].bounds.x1 < (
double) bounds.x1)
1411 bounds.x1=polygon_info->edges[i].bounds.x1;
1412 if (polygon_info->edges[i].bounds.y1 < (
double) bounds.y1)
1413 bounds.y1=polygon_info->edges[i].bounds.y1;
1414 if (polygon_info->edges[i].bounds.x2 > (
double) bounds.x2)
1415 bounds.x2=polygon_info->edges[i].bounds.x2;
1416 if (polygon_info->edges[i].bounds.y2 > (
double) bounds.y2)
1417 bounds.y2=polygon_info->edges[i].bounds.y2;
1420 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double)
1421 image->columns ? (
double) image->columns-1 : bounds.x1;
1423 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double)
1424 image->rows ? (
double) image->rows-1 : bounds.y1;
1426 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double)
1427 image->columns ? (
double) image->columns-1 : bounds.x2;
1429 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double)
1430 image->rows ? (
double) image->rows-1 : bounds.y2;
1431 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
1433 if (polygon_info->edges[i].direction != 0)
1434 status=QueryColorDatabase(
"#f00",&clone_info->stroke,
1437 status=QueryColorDatabase(
"#0f0",&clone_info->stroke,
1439 if (status == MagickFalse)
1441 start.x=(double) (polygon_info->edges[i].bounds.x1-mid);
1442 start.y=(double) (polygon_info->edges[i].bounds.y1-mid);
1443 end.x=(double) (polygon_info->edges[i].bounds.x2+mid);
1444 end.y=(double) (polygon_info->edges[i].bounds.y2+mid);
1445 primitive_info[0].primitive=RectanglePrimitive;
1446 status&=TraceRectangle(primitive_info,start,end);
1447 primitive_info[0].method=ReplaceMethod;
1448 coordinates=(ssize_t) primitive_info[0].coordinates;
1449 primitive_info[coordinates].primitive=UndefinedPrimitive;
1450 status=DrawPrimitive(image,clone_info,primitive_info);
1451 if (status == MagickFalse)
1454 if (i < (ssize_t) polygon_info->number_edges)
1456 clone_info=DestroyDrawInfo(clone_info);
1457 return(status == 0 ? MagickFalse : MagickTrue);
1460 status=QueryColorDatabase(
"#00f",&clone_info->stroke,&image->exception);
1461 if (status == MagickFalse)
1463 clone_info=DestroyDrawInfo(clone_info);
1464 return(MagickFalse);
1466 start.x=(double) (bounds.x1-mid);
1467 start.y=(double) (bounds.y1-mid);
1468 end.x=(double) (bounds.x2+mid);
1469 end.y=(double) (bounds.y2+mid);
1470 primitive_info[0].primitive=RectanglePrimitive;
1471 status&=TraceRectangle(primitive_info,start,end);
1472 primitive_info[0].method=ReplaceMethod;
1473 coordinates=(ssize_t) primitive_info[0].coordinates;
1474 primitive_info[coordinates].primitive=UndefinedPrimitive;
1475 status=DrawPrimitive(image,clone_info,primitive_info);
1476 clone_info=DestroyDrawInfo(clone_info);
1477 return(status == 0 ? MagickFalse : MagickTrue);
1507 MagickExport MagickBooleanType DrawClipPath(
Image *image,
1508 const DrawInfo *draw_info,
const char *
id)
1519 clip_path=GetImageArtifact(image,
id);
1520 if (clip_path == (
const char *) NULL)
1521 return(MagickFalse);
1522 clipping_mask=DrawClippingMask(image,draw_info,draw_info->clip_mask,clip_path,
1524 if (clipping_mask == (
Image *) NULL)
1525 return(MagickFalse);
1526 status=SetImageClipMask(image,clipping_mask);
1527 clipping_mask=DestroyImage(clipping_mask);
1564 const char *
id,
const char *clip_path,
ExceptionInfo *exception)
1578 assert(image != (
Image *) NULL);
1579 assert(image->signature == MagickCoreSignature);
1580 assert(draw_info != (
const DrawInfo *) NULL);
1581 if (IsEventLogging() != MagickFalse)
1582 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1583 clip_mask=AcquireImage((
const ImageInfo *) NULL);
1584 status=SetImageExtent(clip_mask,image->columns,image->rows);
1585 if (status == MagickFalse)
1586 return(DestroyImage(clip_mask));
1587 status=SetImageClipMask(image,(
Image *) NULL);
1588 status=QueryColorCompliance(
"#0000",AllCompliance,
1589 &clip_mask->background_color,exception);
1590 clip_mask->background_color.opacity=(Quantum) TransparentOpacity;
1591 status=SetImageBackgroundColor(clip_mask);
1592 if (draw_info->debug != MagickFalse)
1593 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin clip-path %s",
1595 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1596 (void) CloneString(&clone_info->primitive,clip_path);
1597 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1599 if (clone_info->clip_mask != (
char *) NULL)
1600 clone_info->clip_mask=DestroyString(clone_info->clip_mask);
1601 (void) QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1603 clone_info->stroke_width=0.0;
1604 clone_info->opacity=OpaqueOpacity;
1605 clone_info->clip_path=MagickTrue;
1606 status=RenderMVGContent(clip_mask,clone_info,0);
1607 clone_info=DestroyDrawInfo(clone_info);
1608 status&=SeparateImageChannel(clip_mask,TrueAlphaChannel);
1609 if (draw_info->compliance != SVGCompliance)
1610 status&=NegateImage(clip_mask,MagickFalse);
1611 if (status == MagickFalse)
1612 clip_mask=DestroyImage(clip_mask);
1613 if (draw_info->debug != MagickFalse)
1614 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end clip-path");
1650 const char *
id,
const char *mask_path,
ExceptionInfo *exception)
1664 assert(image != (
Image *) NULL);
1665 assert(image->signature == MagickCoreSignature);
1666 assert(draw_info != (
const DrawInfo *) NULL);
1667 if (IsEventLogging() != MagickFalse)
1668 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1669 composite_mask=AcquireImage((
const ImageInfo *) NULL);
1670 status=SetImageExtent(composite_mask,image->columns,image->rows);
1671 if (status == MagickFalse)
1672 return(DestroyImage(composite_mask));
1673 status=SetImageMask(image,(
Image *) NULL);
1674 status=QueryColorCompliance(
"#0000",AllCompliance,
1675 &composite_mask->background_color,exception);
1676 composite_mask->background_color.opacity=(Quantum) TransparentOpacity;
1677 (void) SetImageBackgroundColor(composite_mask);
1678 if (draw_info->debug != MagickFalse)
1679 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin mask-path %s",
1681 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1682 (void) CloneString(&clone_info->primitive,mask_path);
1683 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1685 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1687 clone_info->stroke_width=0.0;
1688 clone_info->opacity=OpaqueOpacity;
1689 status=RenderMVGContent(composite_mask,clone_info,0);
1690 clone_info=DestroyDrawInfo(clone_info);
1691 status&=SeparateImageChannel(composite_mask,TrueAlphaChannel);
1692 status&=NegateImage(composite_mask,MagickFalse);
1693 if (status == MagickFalse)
1694 composite_mask=DestroyImage(composite_mask);
1695 if (draw_info->debug != MagickFalse)
1696 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end mask-path");
1697 return(composite_mask);
1729 static MagickBooleanType DrawDashPolygon(
const DrawInfo *draw_info,
1760 assert(draw_info != (
const DrawInfo *) NULL);
1761 if (draw_info->debug != MagickFalse)
1762 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-dash");
1763 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
1764 number_vertices=(size_t) i;
1765 dash_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
1766 (2UL*number_vertices+32UL),
sizeof(*dash_polygon));
1769 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1770 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
1771 return(MagickFalse);
1773 (void) memset(dash_polygon,0,(2UL*number_vertices+32UL)*
1774 sizeof(*dash_polygon));
1775 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1776 clone_info->miterlimit=0;
1777 dash_polygon[0]=primitive_info[0];
1778 scale=ExpandAffine(&draw_info->affine);
1779 length=scale*draw_info->dash_pattern[0];
1780 offset=fabs(draw_info->dash_offset) >= MagickEpsilon ?
1781 scale*draw_info->dash_offset : 0.0;
1783 for (n=0; offset > 0.0; j=0)
1785 if (draw_info->dash_pattern[n] <= 0.0)
1787 length=scale*(draw_info->dash_pattern[n]+(n == 0 ? -0.5 : 0.5));
1788 if (offset > length)
1792 length=scale*draw_info->dash_pattern[n];
1795 if (offset < length)
1807 for (i=1; (i < (ssize_t) number_vertices) && (length >= 0.0); i++)
1809 dx=primitive_info[i].point.x-primitive_info[i-1].point.x;
1810 dy=primitive_info[i].point.y-primitive_info[i-1].point.y;
1811 maximum_length=hypot(dx,dy);
1812 if (maximum_length > (
double) (MaxBezierCoordinates >> 2))
1814 if (fabs(length) < MagickEpsilon)
1816 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1818 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1820 length=scale*draw_info->dash_pattern[n];
1822 for (total_length=0.0; (length >= 0.0) && (maximum_length >= (total_length+length)); )
1824 total_length+=length;
1825 if ((n & 0x01) != 0)
1827 dash_polygon[0]=primitive_info[0];
1828 dash_polygon[0].point.x=(double) (primitive_info[i-1].point.x+dx*
1829 total_length*PerceptibleReciprocal(maximum_length));
1830 dash_polygon[0].point.y=(double) (primitive_info[i-1].point.y+dy*
1831 total_length*PerceptibleReciprocal(maximum_length));
1836 if ((j+1) > (ssize_t) number_vertices)
1838 dash_polygon[j]=primitive_info[i-1];
1839 dash_polygon[j].point.x=(double) (primitive_info[i-1].point.x+dx*
1840 total_length*PerceptibleReciprocal(maximum_length));
1841 dash_polygon[j].point.y=(double) (primitive_info[i-1].point.y+dy*
1842 total_length*PerceptibleReciprocal(maximum_length));
1843 dash_polygon[j].coordinates=1;
1845 dash_polygon[0].coordinates=(size_t) j;
1846 dash_polygon[j].primitive=UndefinedPrimitive;
1847 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1848 if (status == MagickFalse)
1851 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1853 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1855 length=scale*draw_info->dash_pattern[n];
1857 length-=(maximum_length-total_length);
1858 if ((n & 0x01) != 0)
1860 dash_polygon[j]=primitive_info[i];
1861 dash_polygon[j].coordinates=1;
1864 if ((status != MagickFalse) && (total_length < maximum_length) &&
1865 ((n & 0x01) == 0) && (j > 1))
1867 dash_polygon[j]=primitive_info[i-1];
1868 dash_polygon[j].point.x+=MagickEpsilon;
1869 dash_polygon[j].point.y+=MagickEpsilon;
1870 dash_polygon[j].coordinates=1;
1872 dash_polygon[0].coordinates=(size_t) j;
1873 dash_polygon[j].primitive=UndefinedPrimitive;
1874 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1876 dash_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(dash_polygon);
1877 clone_info=DestroyDrawInfo(clone_info);
1878 if (draw_info->debug != MagickFalse)
1879 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-dash");
1880 return(status != 0 ? MagickTrue : MagickFalse);
1909 static inline double GetStopColorOffset(
const GradientInfo *gradient,
1910 const ssize_t x,
const ssize_t y)
1912 switch (gradient->type)
1914 case UndefinedGradient:
1915 case LinearGradient:
1930 gradient_vector=(&gradient->gradient_vector);
1931 p.x=gradient_vector->x2-gradient_vector->x1;
1932 p.y=gradient_vector->y2-gradient_vector->y1;
1933 q.x=(double) x-gradient_vector->x1;
1934 q.y=(
double) y-gradient_vector->y1;
1935 length=sqrt(q.x*q.x+q.y*q.y);
1936 gamma=sqrt(p.x*p.x+p.y*p.y)*length;
1937 gamma=PerceptibleReciprocal(gamma);
1938 scale=p.x*q.x+p.y*q.y;
1939 offset=gamma*scale*length;
1942 case RadialGradient:
1947 if (gradient->spread == RepeatSpread)
1949 v.x=(double) x-gradient->center.x;
1950 v.y=(
double) y-gradient->center.y;
1951 return(sqrt(v.x*v.x+v.y*v.y));
1953 v.x=(double) (((x-gradient->center.x)*cos(DegreesToRadians(
1954 gradient->angle)))+((y-gradient->center.y)*sin(DegreesToRadians(
1955 gradient->angle))))*PerceptibleReciprocal(gradient->radii.x);
1956 v.y=(double) (((x-gradient->center.x)*sin(DegreesToRadians(
1957 gradient->angle)))-((y-gradient->center.y)*cos(DegreesToRadians(
1958 gradient->angle))))*PerceptibleReciprocal(gradient->radii.y);
1959 return(sqrt(v.x*v.x+v.y*v.y));
1965 MagickExport MagickBooleanType DrawGradientImage(
Image *image,
2001 assert(image != (
Image *) NULL);
2002 assert(image->signature == MagickCoreSignature);
2003 assert(draw_info != (
const DrawInfo *) NULL);
2004 if (IsEventLogging() != MagickFalse)
2005 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2006 gradient=(&draw_info->gradient);
2007 gradient_vector=(&gradient->gradient_vector);
2008 point.x=gradient_vector->x2-gradient_vector->x1;
2009 point.y=gradient_vector->y2-gradient_vector->y1;
2010 length=sqrt(point.x*point.x+point.y*point.y);
2011 bounding_box=gradient->bounding_box;
2013 exception=(&image->exception);
2014 GetMagickPixelPacket(image,&zero);
2015 image_view=AcquireAuthenticCacheView(image,exception);
2016 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2017 #pragma omp parallel for schedule(static) shared(status) \
2018 magick_number_threads(image,image,bounding_box.height-bounding_box.y,1)
2020 for (y=bounding_box.y; y < (ssize_t) bounding_box.height; y++)
2031 *magick_restrict indexes;
2043 if (status == MagickFalse)
2045 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2051 indexes=GetCacheViewAuthenticIndexQueue(image_view);
2054 offset=GetStopColorOffset(gradient,0,y);
2055 if (gradient->type != RadialGradient)
2056 offset*=PerceptibleReciprocal(length);
2057 for (x=bounding_box.x; x < (ssize_t) bounding_box.width; x++)
2059 SetMagickPixelPacket(image,q,indexes+x,&pixel);
2060 switch (gradient->spread)
2062 case UndefinedSpread:
2065 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2066 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2068 offset=GetStopColorOffset(gradient,x,y);
2069 if (gradient->type != RadialGradient)
2070 offset*=PerceptibleReciprocal(length);
2072 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2073 if (offset < gradient->stops[i].offset)
2075 if ((offset < 0.0) || (i == 0))
2076 composite=gradient->stops[0].color;
2078 if ((offset > 1.0) || (i == (ssize_t) gradient->number_stops))
2079 composite=gradient->stops[gradient->number_stops-1].color;
2084 alpha=(offset-gradient->stops[i].offset)/
2085 (gradient->stops[j].offset-gradient->stops[i].offset);
2086 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2087 &gradient->stops[j].color,alpha,&composite);
2093 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2094 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2096 offset=GetStopColorOffset(gradient,x,y);
2097 if (gradient->type != RadialGradient)
2098 offset*=PerceptibleReciprocal(length);
2102 if ((ssize_t) fmod(offset,2.0) == 0)
2103 offset=fmod(offset,1.0);
2105 offset=1.0-fmod(offset,1.0);
2106 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2107 if (offset < gradient->stops[i].offset)
2110 composite=gradient->stops[0].color;
2112 if (i == (ssize_t) gradient->number_stops)
2113 composite=gradient->stops[gradient->number_stops-1].color;
2118 alpha=(offset-gradient->stops[i].offset)/
2119 (gradient->stops[j].offset-gradient->stops[i].offset);
2120 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2121 &gradient->stops[j].color,alpha,&composite);
2133 antialias=MagickFalse;
2135 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2136 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2138 offset=GetStopColorOffset(gradient,x,y);
2139 if (gradient->type == LinearGradient)
2141 repeat=fmod(offset,length);
2143 repeat=length-fmod(-repeat,length);
2145 repeat=fmod(offset,length);
2146 antialias=(repeat < length) && ((repeat+1.0) > length) ?
2147 MagickTrue : MagickFalse;
2148 offset=PerceptibleReciprocal(length)*repeat;
2152 repeat=fmod(offset,(
double) gradient->radius);
2154 repeat=gradient->radius-fmod(-repeat,
2155 (
double) gradient->radius);
2157 repeat=fmod(offset,(
double) gradient->radius);
2158 antialias=repeat+1.0 > gradient->radius ? MagickTrue :
2160 offset=repeat*PerceptibleReciprocal(gradient->radius);
2163 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2164 if (offset < gradient->stops[i].offset)
2167 composite=gradient->stops[0].color;
2169 if (i == (ssize_t) gradient->number_stops)
2170 composite=gradient->stops[gradient->number_stops-1].color;
2175 alpha=(offset-gradient->stops[i].offset)/
2176 (gradient->stops[j].offset-gradient->stops[i].offset);
2177 if (antialias != MagickFalse)
2179 if (gradient->type == LinearGradient)
2180 alpha=length-repeat;
2182 alpha=gradient->radius-repeat;
2184 j=(ssize_t) gradient->number_stops-1L;
2186 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2187 &gradient->stops[j].color,alpha,&composite);
2192 MagickPixelCompositeOver(&composite,composite.opacity,&pixel,
2193 pixel.opacity,&pixel);
2194 SetPixelPacket(image,&pixel,q,indexes+x);
2197 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2200 image_view=DestroyCacheView(image_view);
2233 static MagickBooleanType CheckPrimitiveExtent(
MVGInfo *mvg_info,
2237 **text = (
char **) NULL;
2251 quantum=
sizeof(**mvg_info->primitive_info);
2252 extent=(double) mvg_info->offset+pad+(PrimitiveExtentPad+1)*quantum;
2253 if (extent <= (
double) *mvg_info->extent)
2255 if ((extent >= (
double) MAGICK_SSIZE_MAX) || (IsNaN(extent) != 0))
2256 return(MagickFalse);
2257 if (mvg_info->offset > 0)
2259 text=(
char **) AcquireQuantumMemory(mvg_info->offset,
sizeof(*text));
2260 if (text == (
char **) NULL)
2261 return(MagickFalse);
2262 for (i=0; i < mvg_info->offset; i++)
2263 text[i]=(*mvg_info->primitive_info)[i].text;
2265 *mvg_info->primitive_info=(
PrimitiveInfo *) ResizeQuantumMemory(
2266 *mvg_info->primitive_info,(
size_t) (extent+1),quantum);
2269 if (text != (
char **) NULL)
2270 text=(
char **) RelinquishMagickMemory(text);
2271 *mvg_info->extent=(size_t) extent;
2272 for (i=mvg_info->offset+1; i <= (ssize_t) extent; i++)
2274 (*mvg_info->primitive_info)[i].primitive=UndefinedPrimitive;
2275 (*mvg_info->primitive_info)[i].text=(
char *) NULL;
2282 if (text != (
char **) NULL)
2284 for (i=0; i < mvg_info->offset; i++)
2285 if (text[i] != (
char *) NULL)
2286 text[i]=DestroyString(text[i]);
2287 text=(
char **) RelinquishMagickMemory(text);
2289 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
2290 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
2291 *mvg_info->primitive_info=(
PrimitiveInfo *) AcquireCriticalMemory((
size_t)
2292 (PrimitiveExtentPad+1)*quantum);
2293 (void) memset(*mvg_info->primitive_info,0,(
size_t) ((PrimitiveExtentPad+1)*
2295 *mvg_info->extent=1;
2297 return(MagickFalse);
2300 static inline double GetDrawValue(
const char *magick_restrict
string,
2301 char **magick_restrict sentinal)
2304 **magick_restrict q;
2310 value=InterpretLocaleValue(
string,q);
2315 static int MVGMacroCompare(
const void *target,
const void *source)
2321 p=(
const char *) target;
2322 q=(
const char *) source;
2323 return(strcmp(p,q));
2344 if (primitive == (
const char *) NULL)
2346 macros=NewSplayTree(MVGMacroCompare,RelinquishMagickMemory,
2347 RelinquishMagickMemory);
2348 macro=AcquireString(primitive);
2349 token=AcquireString(primitive);
2350 extent=strlen(token)+MagickPathExtent;
2351 for (q=primitive; *q !=
'\0'; )
2353 if (GetNextToken(q,&q,extent,token) < 1)
2357 if (LocaleCompare(
"push",token) == 0)
2363 (void) GetNextToken(q,&q,extent,token);
2367 name[MagickPathExtent];
2378 (void) GetNextToken(q,&q,extent,token);
2381 (void) CopyMagickString(name,token,MagickPathExtent);
2383 for (p=q; *p !=
'\0'; )
2385 if (GetNextToken(p,&p,extent,token) < 1)
2389 if (LocaleCompare(token,
"pop") == 0)
2391 end=p-strlen(token)-1;
2394 if (LocaleCompare(token,
"push") == 0)
2396 if ((n == 0) && (end > start))
2401 (void) GetNextToken(p,&p,extent,token);
2402 (void) CopyMagickString(macro,start,(
size_t) (end-start));
2403 (void) AddValueToSplayTree(macros,ConstantString(name),
2404 ConstantString(macro));
2411 token=DestroyString(token);
2412 macro=DestroyString(macro);
2416 static inline MagickBooleanType IsPoint(
const char *point)
2424 value=GetDrawValue(point,&p);
2425 return((fabs(value) < MagickEpsilon) && (p == point) ? MagickFalse :
2429 static inline MagickBooleanType TracePoint(
PrimitiveInfo *primitive_info,
2432 primitive_info->coordinates=1;
2433 primitive_info->closed_subpath=MagickFalse;
2434 primitive_info->point=point;
2438 static MagickBooleanType RenderMVGContent(
Image *image,
2439 const DrawInfo *draw_info,
const size_t depth)
2441 #define RenderImageTag "Render/Image"
2448 key[2*MaxTextExtent],
2449 keyword[MaxTextExtent],
2450 geometry[MaxTextExtent],
2451 name[MaxTextExtent],
2453 pattern[MaxTextExtent],
2519 assert(image != (
Image *) NULL);
2520 assert(image->signature == MagickCoreSignature);
2521 assert(draw_info != (
DrawInfo *) NULL);
2522 assert(draw_info->signature == MagickCoreSignature);
2523 if (IsEventLogging() != MagickFalse)
2524 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2525 if (depth > MagickMaxRecursionDepth)
2526 ThrowBinaryImageException(DrawError,
"VectorGraphicsNestedTooDeeply",
2528 if ((draw_info->primitive == (
char *) NULL) ||
2529 (*draw_info->primitive ==
'\0'))
2530 return(MagickFalse);
2531 if (draw_info->debug != MagickFalse)
2532 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"begin draw-image");
2533 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
2534 return(MagickFalse);
2535 if (image->matte == MagickFalse)
2537 status=SetImageAlphaChannel(image,OpaqueAlphaChannel);
2538 if (status == MagickFalse)
2539 return(MagickFalse);
2541 primitive=(
char *) NULL;
2542 if ((*draw_info->primitive ==
'@') && (strlen(draw_info->primitive) > 1) &&
2543 (*(draw_info->primitive+1) !=
'-') && (depth == 0))
2544 primitive=FileToString(draw_info->primitive+1,~0UL,&image->exception);
2546 primitive=AcquireString(draw_info->primitive);
2547 if (primitive == (
char *) NULL)
2548 return(MagickFalse);
2549 primitive_extent=(double) strlen(primitive);
2550 (void) SetImageArtifact(image,
"mvg:vector-graphics",primitive);
2555 graphic_context=(
DrawInfo **) AcquireMagickMemory(
sizeof(*graphic_context));
2556 if (graphic_context == (
DrawInfo **) NULL)
2558 primitive=DestroyString(primitive);
2559 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2562 number_points=(size_t) PrimitiveExtentPad;
2563 primitive_info=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
2564 (number_points+1),
sizeof(*primitive_info));
2567 primitive=DestroyString(primitive);
2568 for ( ; n >= 0; n--)
2569 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
2570 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
2571 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2574 (void) memset(primitive_info,0,(
size_t) (number_points+1)*
2575 sizeof(*primitive_info));
2576 (void) memset(&mvg_info,0,
sizeof(mvg_info));
2577 mvg_info.primitive_info=(&primitive_info);
2578 mvg_info.extent=(&number_points);
2579 mvg_info.exception=(&image->exception);
2580 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
2581 graphic_context[n]->viewbox=image->page;
2582 if ((image->page.width == 0) || (image->page.height == 0))
2584 graphic_context[n]->viewbox.width=image->columns;
2585 graphic_context[n]->viewbox.height=image->rows;
2587 token=AcquireString(primitive);
2588 extent=strlen(token)+MaxTextExtent;
2592 macros=GetMVGMacros(primitive);
2593 status=QueryColorDatabase(
"#000000",&start_color,&image->exception);
2594 for (q=primitive; *q !=
'\0'; )
2599 if (GetNextToken(q,&q,MaxTextExtent,keyword) < 1)
2601 if (*keyword ==
'\0')
2603 if (*keyword ==
'#')
2608 while ((*q !=
'\n') && (*q !=
'\0'))
2612 p=q-strlen(keyword)-1;
2613 primitive_type=UndefinedPrimitive;
2614 current=graphic_context[n]->affine;
2615 GetAffineMatrix(&affine);
2624 if (LocaleCompare(
"affine",keyword) == 0)
2626 (void) GetNextToken(q,&q,extent,token);
2627 affine.sx=GetDrawValue(token,&next_token);
2628 if (token == next_token)
2629 ThrowPointExpectedException(image,token);
2630 (void) GetNextToken(q,&q,extent,token);
2632 (void) GetNextToken(q,&q,extent,token);
2633 affine.rx=GetDrawValue(token,&next_token);
2634 if (token == next_token)
2635 ThrowPointExpectedException(image,token);
2636 (void) GetNextToken(q,&q,extent,token);
2638 (void) GetNextToken(q,&q,extent,token);
2639 affine.ry=GetDrawValue(token,&next_token);
2640 if (token == next_token)
2641 ThrowPointExpectedException(image,token);
2642 (void) GetNextToken(q,&q,extent,token);
2644 (void) GetNextToken(q,&q,extent,token);
2645 affine.sy=GetDrawValue(token,&next_token);
2646 if (token == next_token)
2647 ThrowPointExpectedException(image,token);
2648 (void) GetNextToken(q,&q,extent,token);
2650 (void) GetNextToken(q,&q,extent,token);
2651 affine.tx=GetDrawValue(token,&next_token);
2652 if (token == next_token)
2653 ThrowPointExpectedException(image,token);
2654 (void) GetNextToken(q,&q,extent,token);
2656 (void) GetNextToken(q,&q,extent,token);
2657 affine.ty=GetDrawValue(token,&next_token);
2658 if (token == next_token)
2659 ThrowPointExpectedException(image,token);
2662 if (LocaleCompare(
"arc",keyword) == 0)
2664 primitive_type=ArcPrimitive;
2673 if (LocaleCompare(
"bezier",keyword) == 0)
2675 primitive_type=BezierPrimitive;
2678 if (LocaleCompare(
"border-color",keyword) == 0)
2680 (void) GetNextToken(q,&q,extent,token);
2681 status&=QueryColorDatabase(token,&graphic_context[n]->border_color,
2691 if (LocaleCompare(
"class",keyword) == 0)
2696 (void) GetNextToken(q,&q,extent,token);
2702 if (LocaleCompare(token,graphic_context[n]->
id) == 0)
2704 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2705 if ((graphic_context[n]->render != MagickFalse) &&
2706 (mvg_class != (
const char *) NULL) && (p > primitive))
2717 offset=(ssize_t) (p-primitive);
2718 elements=AcquireString(primitive);
2719 elements[offset]=
'\0';
2720 (void) ConcatenateString(&elements,mvg_class);
2721 (void) ConcatenateString(&elements,
"\n");
2722 (void) ConcatenateString(&elements,q);
2723 primitive=DestroyString(primitive);
2729 if (LocaleCompare(
"clip-path",keyword) == 0)
2737 (void) GetNextToken(q,&q,extent,token);
2743 (void) CloneString(&graphic_context[n]->clip_mask,token);
2744 clip_path=(
const char *) GetValueFromSplayTree(macros,token);
2745 if (clip_path != (
const char *) NULL)
2747 if (graphic_context[n]->clipping_mask != (
Image *) NULL)
2748 graphic_context[n]->clipping_mask=
2749 DestroyImage(graphic_context[n]->clipping_mask);
2750 graphic_context[n]->clipping_mask=DrawClippingMask(image,
2751 graphic_context[n],token,clip_path,&image->exception);
2752 if (graphic_context[n]->compliance != SVGCompliance)
2757 clip_path=(
const char *) GetValueFromSplayTree(macros,
2758 graphic_context[n]->clip_mask);
2759 if (clip_path != (
const char *) NULL)
2760 (
void) SetImageArtifact(image,
2761 graphic_context[n]->clip_mask,clip_path);
2762 status&=DrawClipPath(image,graphic_context[n],
2763 graphic_context[n]->clip_mask);
2768 if (LocaleCompare(
"clip-rule",keyword) == 0)
2773 (void) GetNextToken(q,&q,extent,token);
2774 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2776 if (fill_rule == -1)
2781 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2784 if (LocaleCompare(
"clip-units",keyword) == 0)
2789 (void) GetNextToken(q,&q,extent,token);
2790 clip_units=ParseCommandOption(MagickClipPathOptions,MagickFalse,
2792 if (clip_units == -1)
2797 graphic_context[n]->clip_units=(ClipPathUnits) clip_units;
2798 if (clip_units == ObjectBoundingBox)
2800 GetAffineMatrix(¤t);
2801 affine.sx=draw_info->bounds.x2;
2802 affine.sy=draw_info->bounds.y2;
2803 affine.tx=draw_info->bounds.x1;
2804 affine.ty=draw_info->bounds.y1;
2809 if (LocaleCompare(
"circle",keyword) == 0)
2811 primitive_type=CirclePrimitive;
2814 if (LocaleCompare(
"color",keyword) == 0)
2816 primitive_type=ColorPrimitive;
2819 if (LocaleCompare(
"compliance",keyword) == 0)
2825 (void) GetNextToken(q,&q,extent,token);
2826 graphic_context[n]->compliance=(ComplianceType) ParseCommandOption(
2827 MagickComplianceOptions,MagickFalse,token);
2830 if (LocaleCompare(
"currentColor",keyword) == 0)
2832 (void) GetNextToken(q,&q,extent,token);
2841 if (LocaleCompare(
"decorate",keyword) == 0)
2846 (void) GetNextToken(q,&q,extent,token);
2847 decorate=ParseCommandOption(MagickDecorateOptions,MagickFalse,
2854 graphic_context[n]->decorate=(DecorationType) decorate;
2857 if (LocaleCompare(
"density",keyword) == 0)
2859 (void) GetNextToken(q,&q,extent,token);
2860 (void) CloneString(&graphic_context[n]->density,token);
2863 if (LocaleCompare(
"direction",keyword) == 0)
2868 (void) GetNextToken(q,&q,extent,token);
2869 direction=ParseCommandOption(MagickDirectionOptions,MagickFalse,
2871 if (direction == -1)
2874 graphic_context[n]->direction=(DirectionType) direction;
2883 if (LocaleCompare(
"ellipse",keyword) == 0)
2885 primitive_type=EllipsePrimitive;
2888 if (LocaleCompare(
"encoding",keyword) == 0)
2890 (void) GetNextToken(q,&q,extent,token);
2891 (void) CloneString(&graphic_context[n]->encoding,token);
2900 if (LocaleCompare(
"fill",keyword) == 0)
2905 (void) GetNextToken(q,&q,extent,token);
2906 if (graphic_context[n]->clip_path != MagickFalse)
2908 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2909 if (mvg_class != (
const char *) NULL)
2911 (void) DrawPatternPath(image,draw_info,mvg_class,
2912 &graphic_context[n]->fill_pattern);
2915 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
2916 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
2918 (void) DrawPatternPath(image,draw_info,token,
2919 &graphic_context[n]->fill_pattern);
2922 status&=QueryColorDatabase(token,&graphic_context[n]->fill,
2924 if (graphic_context[n]->fill_opacity != OpaqueOpacity)
2925 graphic_context[n]->fill.opacity=ClampToQuantum(
2926 graphic_context[n]->fill_opacity);
2929 if (LocaleCompare(
"fill-opacity",keyword) == 0)
2934 (void) GetNextToken(q,&q,extent,token);
2935 if (graphic_context[n]->clip_path != MagickFalse)
2937 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
2938 opacity=MagickMin(MagickMax(factor*
2939 GetDrawValue(token,&next_token),0.0),1.0);
2940 if (token == next_token)
2941 ThrowPointExpectedException(image,token);
2942 if (graphic_context[n]->compliance == SVGCompliance)
2943 graphic_context[n]->fill_opacity*=(1.0-opacity);
2945 graphic_context[n]->fill_opacity=(QuantumRange-
2946 graphic_context[n]->fill_opacity)*(1.0-opacity);
2947 if (graphic_context[n]->fill.opacity != TransparentOpacity)
2948 graphic_context[n]->fill.opacity=(Quantum)
2949 graphic_context[n]->fill_opacity;
2951 graphic_context[n]->fill.opacity=ClampToQuantum(QuantumRange*
2955 if (LocaleCompare(
"fill-rule",keyword) == 0)
2960 (void) GetNextToken(q,&q,extent,token);
2961 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2963 if (fill_rule == -1)
2968 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2971 if (LocaleCompare(
"font",keyword) == 0)
2973 (void) GetNextToken(q,&q,extent,token);
2974 (void) CloneString(&graphic_context[n]->font,token);
2975 if (LocaleCompare(
"none",token) == 0)
2976 graphic_context[n]->font=(
char *) RelinquishMagickMemory(
2977 graphic_context[n]->font);
2980 if (LocaleCompare(
"font-family",keyword) == 0)
2982 (void) GetNextToken(q,&q,extent,token);
2983 (void) CloneString(&graphic_context[n]->family,token);
2986 if (LocaleCompare(
"font-size",keyword) == 0)
2988 (void) GetNextToken(q,&q,extent,token);
2989 graphic_context[n]->pointsize=GetDrawValue(token,&next_token);
2990 if (token == next_token)
2991 ThrowPointExpectedException(image,token);
2994 if (LocaleCompare(
"font-stretch",keyword) == 0)
2999 (void) GetNextToken(q,&q,extent,token);
3000 stretch=ParseCommandOption(MagickStretchOptions,MagickFalse,token);
3006 graphic_context[n]->stretch=(StretchType) stretch;
3009 if (LocaleCompare(
"font-style",keyword) == 0)
3014 (void) GetNextToken(q,&q,extent,token);
3015 style=ParseCommandOption(MagickStyleOptions,MagickFalse,token);
3021 graphic_context[n]->style=(StyleType) style;
3024 if (LocaleCompare(
"font-weight",keyword) == 0)
3029 (void) GetNextToken(q,&q,extent,token);
3030 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,token);
3032 weight=(ssize_t) StringToUnsignedLong(token);
3033 graphic_context[n]->weight=(size_t) weight;
3042 if (LocaleCompare(
"gradient-units",keyword) == 0)
3044 (void) GetNextToken(q,&q,extent,token);
3047 if (LocaleCompare(
"gravity",keyword) == 0)
3052 (void) GetNextToken(q,&q,extent,token);
3053 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,token);
3059 graphic_context[n]->gravity=(GravityType) gravity;
3068 if (LocaleCompare(
"image",keyword) == 0)
3073 primitive_type=ImagePrimitive;
3074 (void) GetNextToken(q,&q,extent,token);
3075 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,token);
3081 graphic_context[n]->compose=(CompositeOperator) compose;
3084 if (LocaleCompare(
"interline-spacing",keyword) == 0)
3086 (void) GetNextToken(q,&q,extent,token);
3087 graphic_context[n]->interline_spacing=GetDrawValue(token,
3089 if (token == next_token)
3090 ThrowPointExpectedException(image,token);
3093 if (LocaleCompare(
"interword-spacing",keyword) == 0)
3095 (void) GetNextToken(q,&q,extent,token);
3096 graphic_context[n]->interword_spacing=GetDrawValue(token,
3098 if (token == next_token)
3099 ThrowPointExpectedException(image,token);
3108 if (LocaleCompare(
"kerning",keyword) == 0)
3110 (void) GetNextToken(q,&q,extent,token);
3111 graphic_context[n]->kerning=GetDrawValue(token,&next_token);
3112 if (token == next_token)
3113 ThrowPointExpectedException(image,token);
3122 if (LocaleCompare(
"letter-spacing",keyword) == 0)
3124 (void) GetNextToken(q,&q,extent,token);
3125 if (IsPoint(token) == MagickFalse)
3127 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3128 clone_info->text=AcquireString(
" ");
3129 status&=GetTypeMetrics(image,clone_info,&metrics);
3130 graphic_context[n]->kerning=metrics.width*
3131 GetDrawValue(token,&next_token);
3132 clone_info=DestroyDrawInfo(clone_info);
3133 if (token == next_token)
3134 ThrowPointExpectedException(image,token);
3137 if (LocaleCompare(
"line",keyword) == 0)
3139 primitive_type=LinePrimitive;
3148 if (LocaleCompare(
"mask",keyword) == 0)
3156 (void) GetNextToken(q,&q,extent,token);
3157 mask_path=(
const char *) GetValueFromSplayTree(macros,token);
3158 if (mask_path != (
const char *) NULL)
3160 if (graphic_context[n]->composite_mask != (
Image *) NULL)
3161 graphic_context[n]->composite_mask=
3162 DestroyImage(graphic_context[n]->composite_mask);
3163 graphic_context[n]->composite_mask=DrawCompositeMask(image,
3164 graphic_context[n],token,mask_path,&image->exception);
3165 if (graphic_context[n]->compliance != SVGCompliance)
3166 status=SetImageMask(image,graphic_context[n]->composite_mask);
3170 if (LocaleCompare(
"matte",keyword) == 0)
3172 primitive_type=MattePrimitive;
3181 if (LocaleCompare(
"offset",keyword) == 0)
3183 (void) GetNextToken(q,&q,extent,token);
3186 if (LocaleCompare(
"opacity",keyword) == 0)
3191 (void) GetNextToken(q,&q,extent,token);
3192 if (graphic_context[n]->clip_path != MagickFalse)
3194 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3195 opacity=MagickMin(MagickMax(factor*
3196 GetDrawValue(token,&next_token),0.0),1.0);
3197 if (token == next_token)
3198 ThrowPointExpectedException(image,token);
3199 if (graphic_context[n]->compliance == SVGCompliance)
3201 graphic_context[n]->fill_opacity*=(1.0-opacity);
3202 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3206 graphic_context[n]->fill_opacity=(QuantumRange-
3207 graphic_context[n]->fill_opacity)*(1.0-opacity);
3208 graphic_context[n]->stroke_opacity=(QuantumRange-
3209 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3219 if (LocaleCompare(
"path",keyword) == 0)
3221 primitive_type=PathPrimitive;
3224 if (LocaleCompare(
"point",keyword) == 0)
3226 primitive_type=PointPrimitive;
3229 if (LocaleCompare(
"polyline",keyword) == 0)
3231 primitive_type=PolylinePrimitive;
3234 if (LocaleCompare(
"polygon",keyword) == 0)
3236 primitive_type=PolygonPrimitive;
3239 if (LocaleCompare(
"pop",keyword) == 0)
3241 if (GetNextToken(q,&q,extent,token) < 1)
3243 if (LocaleCompare(
"class",token) == 0)
3245 if (LocaleCompare(
"clip-path",token) == 0)
3247 if (LocaleCompare(
"defs",token) == 0)
3250 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3254 if (LocaleCompare(
"gradient",token) == 0)
3256 if (LocaleCompare(
"graphic-context",token) == 0)
3260 (void) ThrowMagickException(&image->exception,
3261 GetMagickModule(),DrawError,
3262 "UnbalancedGraphicContextPushPop",
"`%s'",token);
3267 if ((graphic_context[n]->clip_mask != (
char *) NULL) &&
3268 (graphic_context[n]->compliance != SVGCompliance))
3269 if (LocaleCompare(graphic_context[n]->clip_mask,
3270 graphic_context[n-1]->clip_mask) != 0)
3271 status=SetImageClipMask(image,(
Image *) NULL);
3272 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
3276 if (LocaleCompare(
"mask",token) == 0)
3278 if (LocaleCompare(
"pattern",token) == 0)
3280 if (LocaleCompare(
"symbol",token) == 0)
3283 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3290 if (LocaleCompare(
"push",keyword) == 0)
3292 if (GetNextToken(q,&q,extent,token) < 1)
3294 if (LocaleCompare(
"class",token) == 0)
3299 for (p=q; *q !=
'\0'; )
3301 if (GetNextToken(q,&q,extent,token) < 1)
3303 if (LocaleCompare(token,
"pop") != 0)
3305 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3306 if (LocaleCompare(token,
"class") != 0)
3310 (void) GetNextToken(q,&q,extent,token);
3313 if (LocaleCompare(
"clip-path",token) == 0)
3315 (void) GetNextToken(q,&q,extent,token);
3316 for (p=q; *q !=
'\0'; )
3318 if (GetNextToken(q,&q,extent,token) < 1)
3320 if (LocaleCompare(token,
"pop") != 0)
3322 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3323 if (LocaleCompare(token,
"clip-path") != 0)
3327 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3332 (void) GetNextToken(q,&q,extent,token);
3335 if (LocaleCompare(
"defs",token) == 0)
3338 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3342 if (LocaleCompare(
"gradient",token) == 0)
3345 key[2*MaxTextExtent],
3346 name[MaxTextExtent],
3347 type[MaxTextExtent];
3352 (void) GetNextToken(q,&q,extent,token);
3353 (void) CopyMagickString(name,token,MaxTextExtent);
3354 (void) GetNextToken(q,&q,extent,token);
3355 (void) CopyMagickString(type,token,MaxTextExtent);
3356 (void) GetNextToken(q,&q,extent,token);
3357 segment.x1=GetDrawValue(token,&next_token);
3358 if (token == next_token)
3359 ThrowPointExpectedException(image,token);
3360 (void) GetNextToken(q,&q,extent,token);
3362 (void) GetNextToken(q,&q,extent,token);
3363 segment.y1=GetDrawValue(token,&next_token);
3364 if (token == next_token)
3365 ThrowPointExpectedException(image,token);
3366 (void) GetNextToken(q,&q,extent,token);
3368 (void) GetNextToken(q,&q,extent,token);
3369 segment.x2=GetDrawValue(token,&next_token);
3370 if (token == next_token)
3371 ThrowPointExpectedException(image,token);
3372 (void) GetNextToken(q,&q,extent,token);
3374 (void) GetNextToken(q,&q,extent,token);
3375 segment.y2=GetDrawValue(token,&next_token);
3376 if (token == next_token)
3377 ThrowPointExpectedException(image,token);
3378 if (LocaleCompare(type,
"radial") == 0)
3380 (void) GetNextToken(q,&q,extent,token);
3382 (void) GetNextToken(q,&q,extent,token);
3384 for (p=q; *q !=
'\0'; )
3386 if (GetNextToken(q,&q,extent,token) < 1)
3388 if (LocaleCompare(token,
"pop") != 0)
3390 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3391 if (LocaleCompare(token,
"gradient") != 0)
3395 if ((q == (
char *) NULL) || (*q ==
'\0') ||
3396 (p == (
char *) NULL) || ((q-4) < p))
3401 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3402 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
3403 graphic_context[n]->affine.ry*segment.y1+
3404 graphic_context[n]->affine.tx;
3405 bounds.y1=graphic_context[n]->affine.rx*segment.x1+
3406 graphic_context[n]->affine.sy*segment.y1+
3407 graphic_context[n]->affine.ty;
3408 bounds.x2=graphic_context[n]->affine.sx*segment.x2+
3409 graphic_context[n]->affine.ry*segment.y2+
3410 graphic_context[n]->affine.tx;
3411 bounds.y2=graphic_context[n]->affine.rx*segment.x2+
3412 graphic_context[n]->affine.sy*segment.y2+
3413 graphic_context[n]->affine.ty;
3414 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3415 (void) SetImageArtifact(image,key,token);
3416 (void) FormatLocaleString(key,MaxTextExtent,
"%s-type",name);
3417 (void) SetImageArtifact(image,key,type);
3418 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3419 (void) FormatLocaleString(geometry,MaxTextExtent,
3420 "%gx%g%+.15g%+.15g",
3421 MagickMax(fabs(bounds.x2-bounds.x1+1.0),1.0),
3422 MagickMax(fabs(bounds.y2-bounds.y1+1.0),1.0),
3423 bounds.x1,bounds.y1);
3424 (void) SetImageArtifact(image,key,geometry);
3425 (void) GetNextToken(q,&q,extent,token);
3428 if (LocaleCompare(
"graphic-context",token) == 0)
3431 graphic_context=(
DrawInfo **) ResizeQuantumMemory(
3432 graphic_context,(
size_t) (n+1),
sizeof(*graphic_context));
3433 if (graphic_context == (
DrawInfo **) NULL)
3435 (void) ThrowMagickException(&image->exception,
3436 GetMagickModule(),ResourceLimitError,
3437 "MemoryAllocationFailed",
"`%s'",image->filename);
3440 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,
3441 graphic_context[n-1]);
3444 (void) GetNextToken(q,&q,extent,token);
3445 (void) CloneString(&graphic_context[n]->
id,token);
3449 if (LocaleCompare(
"mask",token) == 0)
3451 (void) GetNextToken(q,&q,extent,token);
3454 if (LocaleCompare(
"pattern",token) == 0)
3459 (void) GetNextToken(q,&q,extent,token);
3460 (void) CopyMagickString(name,token,MaxTextExtent);
3461 (void) GetNextToken(q,&q,extent,token);
3462 bounds.x=CastDoubleToLong(ceil(GetDrawValue(token,
3464 if (token == next_token)
3465 ThrowPointExpectedException(image,token);
3466 (void) GetNextToken(q,&q,extent,token);
3468 (void) GetNextToken(q,&q,extent,token);
3469 bounds.y=CastDoubleToLong(ceil(GetDrawValue(token,
3471 if (token == next_token)
3472 ThrowPointExpectedException(image,token);
3473 (void) GetNextToken(q,&q,extent,token);
3475 (void) GetNextToken(q,&q,extent,token);
3476 bounds.width=(size_t) floor(GetDrawValue(token,&next_token)+
3478 if (token == next_token)
3479 ThrowPointExpectedException(image,token);
3480 (void) GetNextToken(q,&q,extent,token);
3482 (void) GetNextToken(q,&q,extent,token);
3483 bounds.height=(size_t) floor(GetDrawValue(token,&next_token)+
3485 if (token == next_token)
3486 ThrowPointExpectedException(image,token);
3487 for (p=q; *q !=
'\0'; )
3489 if (GetNextToken(q,&q,extent,token) < 1)
3491 if (LocaleCompare(token,
"pop") != 0)
3493 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3494 if (LocaleCompare(token,
"pattern") != 0)
3498 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3503 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3504 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3505 (void) SetImageArtifact(image,key,token);
3506 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3507 (void) FormatLocaleString(geometry,MaxTextExtent,
3508 "%.20gx%.20g%+.20g%+.20g",(
double) bounds.width,(double)
3509 bounds.height,(
double) bounds.x,(double) bounds.y);
3510 (void) SetImageArtifact(image,key,geometry);
3511 (void) GetNextToken(q,&q,extent,token);
3514 if (LocaleCompare(
"symbol",token) == 0)
3517 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3530 if (LocaleCompare(
"rectangle",keyword) == 0)
3532 primitive_type=RectanglePrimitive;
3535 if (LocaleCompare(
"rotate",keyword) == 0)
3537 (void) GetNextToken(q,&q,extent,token);
3538 angle=GetDrawValue(token,&next_token);
3539 if (token == next_token)
3540 ThrowPointExpectedException(image,token);
3541 affine.sx=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3542 affine.rx=sin(DegreesToRadians(fmod((
double) angle,360.0)));
3543 affine.ry=(-sin(DegreesToRadians(fmod((
double) angle,360.0))));
3544 affine.sy=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3547 if (LocaleCompare(
"roundRectangle",keyword) == 0)
3549 primitive_type=RoundRectanglePrimitive;
3558 if (LocaleCompare(
"scale",keyword) == 0)
3560 (void) GetNextToken(q,&q,extent,token);
3561 affine.sx=GetDrawValue(token,&next_token);
3562 if (token == next_token)
3563 ThrowPointExpectedException(image,token);
3564 (void) GetNextToken(q,&q,extent,token);
3566 (void) GetNextToken(q,&q,extent,token);
3567 affine.sy=GetDrawValue(token,&next_token);
3568 if (token == next_token)
3569 ThrowPointExpectedException(image,token);
3572 if (LocaleCompare(
"skewX",keyword) == 0)
3574 (void) GetNextToken(q,&q,extent,token);
3575 angle=GetDrawValue(token,&next_token);
3576 if (token == next_token)
3577 ThrowPointExpectedException(image,token);
3578 affine.ry=sin(DegreesToRadians(angle));
3581 if (LocaleCompare(
"skewY",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.rx=(-tan(DegreesToRadians(angle)/2.0));
3590 if (LocaleCompare(
"stop-color",keyword) == 0)
3598 (void) GetNextToken(q,&q,extent,token);
3599 status&=QueryColorDatabase(token,&stop_color,&image->exception);
3600 type=LinearGradient;
3601 if (draw_info->gradient.type == RadialGradient)
3602 type=RadialGradient;
3603 (void) GradientImage(image,type,PadSpread,&start_color,&stop_color);
3604 start_color=stop_color;
3605 (void) GetNextToken(q,&q,extent,token);
3608 if (LocaleCompare(
"stroke",keyword) == 0)
3613 (void) GetNextToken(q,&q,extent,token);
3614 if (graphic_context[n]->clip_path != MagickFalse)
3616 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
3617 if (mvg_class != (
const char *) NULL)
3619 (void) DrawPatternPath(image,draw_info,mvg_class,
3620 &graphic_context[n]->stroke_pattern);
3623 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
3624 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
3626 (void) DrawPatternPath(image,draw_info,token,
3627 &graphic_context[n]->stroke_pattern);
3630 status&=QueryColorDatabase(token,&graphic_context[n]->stroke,
3632 if (graphic_context[n]->stroke_opacity != OpaqueOpacity)
3633 graphic_context[n]->stroke.opacity=ClampToQuantum(
3634 graphic_context[n]->stroke_opacity);
3637 if (LocaleCompare(
"stroke-antialias",keyword) == 0)
3639 (void) GetNextToken(q,&q,extent,token);
3640 graphic_context[n]->stroke_antialias=StringToLong(token) != 0 ?
3641 MagickTrue : MagickFalse;
3644 if (LocaleCompare(
"stroke-dasharray",keyword) == 0)
3646 if (graphic_context[n]->dash_pattern != (
double *) NULL)
3647 graphic_context[n]->dash_pattern=(
double *)
3648 RelinquishMagickMemory(graphic_context[n]->dash_pattern);
3649 if (IsPoint(q) != MagickFalse)
3655 (void) GetNextToken(p,&p,extent,token);
3657 (void) GetNextToken(p,&p,extent,token);
3658 for (x=0; IsPoint(token) != MagickFalse; x++)
3660 (void) GetNextToken(p,&p,extent,token);
3662 (void) GetNextToken(p,&p,extent,token);
3664 graphic_context[n]->dash_pattern=(
double *)
3665 AcquireQuantumMemory((
size_t) (2*x+2),
3666 sizeof(*graphic_context[n]->dash_pattern));
3667 if (graphic_context[n]->dash_pattern == (
double *) NULL)
3669 (void) ThrowMagickException(&image->exception,
3670 GetMagickModule(),ResourceLimitError,
3671 "MemoryAllocationFailed",
"`%s'",image->filename);
3675 (void) memset(graphic_context[n]->dash_pattern,0,(
size_t)
3676 (2*x+2)*
sizeof(*graphic_context[n]->dash_pattern));
3677 for (j=0; j < x; j++)
3679 (void) GetNextToken(q,&q,extent,token);
3681 (void) GetNextToken(q,&q,extent,token);
3682 graphic_context[n]->dash_pattern[j]=GetDrawValue(token,
3684 if (token == next_token)
3685 ThrowPointExpectedException(image,token);
3686 if (graphic_context[n]->dash_pattern[j] <= 0.0)
3689 if ((x & 0x01) != 0)
3690 for ( ; j < (2*x); j++)
3691 graphic_context[n]->dash_pattern[j]=
3692 graphic_context[n]->dash_pattern[j-x];
3693 graphic_context[n]->dash_pattern[j]=0.0;
3696 (void) GetNextToken(q,&q,extent,token);
3699 if (LocaleCompare(
"stroke-dashoffset",keyword) == 0)
3701 (void) GetNextToken(q,&q,extent,token);
3702 graphic_context[n]->dash_offset=GetDrawValue(token,&next_token);
3703 if (token == next_token)
3704 ThrowPointExpectedException(image,token);
3707 if (LocaleCompare(
"stroke-linecap",keyword) == 0)
3712 (void) GetNextToken(q,&q,extent,token);
3713 linecap=ParseCommandOption(MagickLineCapOptions,MagickFalse,token);
3719 graphic_context[n]->linecap=(LineCap) linecap;
3722 if (LocaleCompare(
"stroke-linejoin",keyword) == 0)
3727 (void) GetNextToken(q,&q,extent,token);
3728 linejoin=ParseCommandOption(MagickLineJoinOptions,MagickFalse,
3735 graphic_context[n]->linejoin=(LineJoin) linejoin;
3738 if (LocaleCompare(
"stroke-miterlimit",keyword) == 0)
3740 (void) GetNextToken(q,&q,extent,token);
3741 graphic_context[n]->miterlimit=StringToUnsignedLong(token);
3744 if (LocaleCompare(
"stroke-opacity",keyword) == 0)
3749 (void) GetNextToken(q,&q,extent,token);
3750 if (graphic_context[n]->clip_path != MagickFalse)
3752 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3753 opacity=MagickMin(MagickMax(factor*
3754 GetDrawValue(token,&next_token),0.0),1.0);
3755 if (token == next_token)
3756 ThrowPointExpectedException(image,token);
3757 if (graphic_context[n]->compliance == SVGCompliance)
3758 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3760 graphic_context[n]->stroke_opacity=(QuantumRange-
3761 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3762 if (graphic_context[n]->stroke.opacity != TransparentOpacity)
3763 graphic_context[n]->stroke.opacity=(Quantum)
3764 graphic_context[n]->stroke_opacity;
3766 graphic_context[n]->stroke.opacity=ClampToQuantum(QuantumRange*
3770 if (LocaleCompare(
"stroke-width",keyword) == 0)
3772 (void) GetNextToken(q,&q,extent,token);
3773 if (graphic_context[n]->clip_path != MagickFalse)
3775 graphic_context[n]->stroke_width=GetDrawValue(token,&next_token);
3776 if (token == next_token)
3777 ThrowPointExpectedException(image,token);
3786 if (LocaleCompare(
"text",keyword) == 0)
3788 primitive_type=TextPrimitive;
3792 if (LocaleCompare(
"text-align",keyword) == 0)
3797 (void) GetNextToken(q,&q,extent,token);
3798 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3804 graphic_context[n]->align=(AlignType) align;
3807 if (LocaleCompare(
"text-anchor",keyword) == 0)
3812 (void) GetNextToken(q,&q,extent,token);
3813 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3819 graphic_context[n]->align=(AlignType) align;
3822 if (LocaleCompare(
"text-antialias",keyword) == 0)
3824 (void) GetNextToken(q,&q,extent,token);
3825 graphic_context[n]->text_antialias=StringToLong(token) != 0 ?
3826 MagickTrue : MagickFalse;
3829 if (LocaleCompare(
"text-undercolor",keyword) == 0)
3831 (void) GetNextToken(q,&q,extent,token);
3832 status&=QueryColorDatabase(token,&graphic_context[n]->undercolor,
3836 if (LocaleCompare(
"translate",keyword) == 0)
3838 (void) GetNextToken(q,&q,extent,token);
3839 affine.tx=GetDrawValue(token,&next_token);
3840 if (token == next_token)
3841 ThrowPointExpectedException(image,token);
3842 (void) GetNextToken(q,&q,extent,token);
3844 (void) GetNextToken(q,&q,extent,token);
3845 affine.ty=GetDrawValue(token,&next_token);
3846 if (token == next_token)
3847 ThrowPointExpectedException(image,token);
3856 if (LocaleCompare(
"use",keyword) == 0)
3864 (void) GetNextToken(q,&q,extent,token);
3865 use=(
const char *) GetValueFromSplayTree(macros,token);
3866 if (use != (
const char *) NULL)
3868 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3869 (void) CloneString(&clone_info->primitive,use);
3870 status=RenderMVGContent(image,clone_info,depth+1);
3871 clone_info=DestroyDrawInfo(clone_info);
3881 if (LocaleCompare(
"viewbox",keyword) == 0)
3883 (void) GetNextToken(q,&q,extent,token);
3884 graphic_context[n]->viewbox.x=CastDoubleToLong(ceil(
3885 GetDrawValue(token,&next_token)-0.5));
3886 if (token == next_token)
3887 ThrowPointExpectedException(image,token);
3888 (void) GetNextToken(q,&q,extent,token);
3890 (void) GetNextToken(q,&q,extent,token);
3891 graphic_context[n]->viewbox.y=CastDoubleToLong(ceil(
3892 GetDrawValue(token,&next_token)-0.5));
3893 if (token == next_token)
3894 ThrowPointExpectedException(image,token);
3895 (void) GetNextToken(q,&q,extent,token);
3897 (void) GetNextToken(q,&q,extent,token);
3898 graphic_context[n]->viewbox.width=(size_t) floor(GetDrawValue(
3899 token,&next_token)+0.5);
3900 if (token == next_token)
3901 ThrowPointExpectedException(image,token);
3902 (void) GetNextToken(q,&q,extent,token);
3904 (void) GetNextToken(q,&q,extent,token);
3905 graphic_context[n]->viewbox.height=(size_t) floor(GetDrawValue(
3906 token,&next_token)+0.5);
3907 if (token == next_token)
3908 ThrowPointExpectedException(image,token);
3917 if (LocaleCompare(
"word-spacing",keyword) == 0)
3919 (void) GetNextToken(q,&q,extent,token);
3920 graphic_context[n]->interword_spacing=GetDrawValue(token,
3922 if (token == next_token)
3923 ThrowPointExpectedException(image,token);
3935 if (status == MagickFalse)
3937 if ((fabs(affine.sx-1.0) >= MagickEpsilon) ||
3938 (fabs(affine.rx) >= MagickEpsilon) || (fabs(affine.ry) >= MagickEpsilon) ||
3939 (fabs(affine.sy-1.0) >= MagickEpsilon) ||
3940 (fabs(affine.tx) >= MagickEpsilon) || (fabs(affine.ty) >= MagickEpsilon))
3942 graphic_context[n]->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
3943 graphic_context[n]->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
3944 graphic_context[n]->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
3945 graphic_context[n]->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
3946 graphic_context[n]->affine.tx=current.sx*affine.tx+current.ry*affine.ty+
3948 graphic_context[n]->affine.ty=current.rx*affine.tx+current.sy*affine.ty+
3951 if (primitive_type == UndefinedPrimitive)
3953 if ((draw_info->debug != MagickFalse) && (q > p))
3954 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int)
3961 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
3962 if (primitive_info[i].text != (
char *) NULL)
3963 primitive_info[i].text=DestroyString(primitive_info[i].text);
3967 primitive_info[0].point.x=0.0;
3968 primitive_info[0].point.y=0.0;
3969 primitive_info[0].coordinates=0;
3970 primitive_info[0].method=FloodfillMethod;
3971 primitive_info[0].closed_subpath=MagickFalse;
3972 for (x=0; *q !=
'\0'; x++)
3977 if (IsPoint(q) == MagickFalse)
3979 (void) GetNextToken(q,&q,extent,token);
3980 point.x=GetDrawValue(token,&next_token);
3981 if (token == next_token)
3982 ThrowPointExpectedException(image,token);
3983 (void) GetNextToken(q,&q,extent,token);
3985 (void) GetNextToken(q,&q,extent,token);
3986 point.y=GetDrawValue(token,&next_token);
3987 if (token == next_token)
3988 ThrowPointExpectedException(image,token);
3989 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3991 (void) GetNextToken(q,&q,extent,token);
3992 primitive_info[i].primitive=primitive_type;
3993 primitive_info[i].point=point;
3994 primitive_info[i].coordinates=0;
3995 primitive_info[i].method=FloodfillMethod;
3996 primitive_info[i].closed_subpath=MagickFalse;
3999 if (i < (ssize_t) number_points)
4001 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4002 primitive_info=(*mvg_info.primitive_info);
4004 if (status == MagickFalse)
4006 if (primitive_info[j].text != (
char *) NULL)
4007 primitive_info[j].text=DestroyString(primitive_info[j].text);
4008 primitive_info[j].primitive=primitive_type;
4009 primitive_info[j].coordinates=(size_t) x;
4010 primitive_info[j].method=FloodfillMethod;
4011 primitive_info[j].closed_subpath=MagickFalse;
4015 bounds.x1=primitive_info[j].point.x;
4016 bounds.y1=primitive_info[j].point.y;
4017 bounds.x2=primitive_info[j].point.x;
4018 bounds.y2=primitive_info[j].point.y;
4019 for (k=1; k < (ssize_t) primitive_info[j].coordinates; k++)
4021 point=primitive_info[j+k].point;
4022 if (point.x < bounds.x1)
4024 if (point.y < bounds.y1)
4026 if (point.x > bounds.x2)
4028 if (point.y > bounds.y2)
4034 coordinates=(double) primitive_info[j].coordinates;
4035 switch (primitive_type)
4037 case RectanglePrimitive:
4042 case RoundRectanglePrimitive:
4049 alpha=bounds.x2-bounds.x1;
4050 beta=bounds.y2-bounds.y1;
4051 radius=hypot(alpha,beta);
4053 coordinates+=2.0*((size_t) ceil((
double) MagickPI*radius))+6.0*
4054 BezierQuantum+360.0;
4057 case BezierPrimitive:
4059 coordinates=(BezierQuantum*(double) primitive_info[j].coordinates);
4068 (void) GetNextToken(q,&q,extent,token);
4071 for (s=token; *s !=
'\0'; s=t)
4076 value=GetDrawValue(s,&t);
4085 for (s=token; *s !=
'\0'; s++)
4086 if (strspn(s,
"AaCcQqSsTt") != 0)
4087 coordinates+=(20.0*BezierQuantum)+360.0;
4093 if (status == MagickFalse)
4095 if (((
size_t) (i+coordinates)) >= number_points)
4100 number_points+=coordinates+1;
4101 if (number_points < (
size_t) coordinates)
4103 (void) ThrowMagickException(&image->exception,GetMagickModule(),
4104 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
4109 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4110 primitive_info=(*mvg_info.primitive_info);
4112 status&=CheckPrimitiveExtent(&mvg_info,PrimitiveExtentPad);
4113 primitive_info=(*mvg_info.primitive_info);
4114 if (status == MagickFalse)
4117 switch (primitive_type)
4119 case PointPrimitive:
4122 if (primitive_info[j].coordinates != 1)
4127 status&=TracePoint(primitive_info+j,primitive_info[j].point);
4128 primitive_info=(*mvg_info.primitive_info);
4129 i=(ssize_t) (j+primitive_info[j].coordinates);
4134 if (primitive_info[j].coordinates != 2)
4139 status&=TraceLine(primitive_info+j,primitive_info[j].point,
4140 primitive_info[j+1].point);
4141 primitive_info=(*mvg_info.primitive_info);
4142 i=(ssize_t) (j+primitive_info[j].coordinates);
4145 case RectanglePrimitive:
4147 if (primitive_info[j].coordinates != 2)
4152 status&=TraceRectangle(primitive_info+j,primitive_info[j].point,
4153 primitive_info[j+1].point);
4154 primitive_info=(*mvg_info.primitive_info);
4155 i=(ssize_t) (j+primitive_info[j].coordinates);
4158 case RoundRectanglePrimitive:
4160 if (primitive_info[j].coordinates != 3)
4165 if ((primitive_info[j+2].point.x < 0.0) ||
4166 (primitive_info[j+2].point.y < 0.0))
4171 if ((primitive_info[j+1].point.x-primitive_info[j].point.x) < 0.0)
4176 if ((primitive_info[j+1].point.y-primitive_info[j].point.y) < 0.0)
4181 status&=TraceRoundRectangle(&mvg_info,primitive_info[j].point,
4182 primitive_info[j+1].point,primitive_info[j+2].point);
4183 primitive_info=(*mvg_info.primitive_info);
4184 i=(ssize_t) (j+primitive_info[j].coordinates);
4189 if (primitive_info[j].coordinates != 3)
4194 status&=TraceArc(&mvg_info,primitive_info[j].point,
4195 primitive_info[j+1].point,primitive_info[j+2].point);
4196 primitive_info=(*mvg_info.primitive_info);
4197 i=(ssize_t) (j+primitive_info[j].coordinates);
4200 case EllipsePrimitive:
4202 if (primitive_info[j].coordinates != 3)
4207 if ((primitive_info[j+1].point.x < 0.0) ||
4208 (primitive_info[j+1].point.y < 0.0))
4213 status&=TraceEllipse(&mvg_info,primitive_info[j].point,
4214 primitive_info[j+1].point,primitive_info[j+2].point);
4215 primitive_info=(*mvg_info.primitive_info);
4216 i=(ssize_t) (j+primitive_info[j].coordinates);
4219 case CirclePrimitive:
4221 if (primitive_info[j].coordinates != 2)
4226 status&=TraceCircle(&mvg_info,primitive_info[j].point,
4227 primitive_info[j+1].point);
4228 primitive_info=(*mvg_info.primitive_info);
4229 i=(ssize_t) (j+primitive_info[j].coordinates);
4232 case PolylinePrimitive:
4234 if (primitive_info[j].coordinates < 1)
4241 case PolygonPrimitive:
4243 if (primitive_info[j].coordinates < 3)
4248 primitive_info[i]=primitive_info[j];
4249 primitive_info[i].coordinates=0;
4250 primitive_info[j].coordinates++;
4251 primitive_info[j].closed_subpath=MagickTrue;
4255 case BezierPrimitive:
4257 if (primitive_info[j].coordinates < 3)
4262 status&=TraceBezier(&mvg_info,primitive_info[j].coordinates);
4263 primitive_info=(*mvg_info.primitive_info);
4264 i=(ssize_t) (j+primitive_info[j].coordinates);
4269 coordinates=(double) TracePath(image,&mvg_info,token);
4270 primitive_info=(*mvg_info.primitive_info);
4271 if (coordinates < 0.0)
4276 i=(ssize_t) (j+coordinates);
4279 case ColorPrimitive:
4280 case MattePrimitive:
4285 if (primitive_info[j].coordinates != 1)
4290 (void) GetNextToken(q,&q,extent,token);
4291 method=ParseCommandOption(MagickMethodOptions,MagickFalse,token);
4297 primitive_info[j].method=(PaintMethod) method;
4303 geometry[MagickPathExtent];
4305 if (primitive_info[j].coordinates != 1)
4311 (void) GetNextToken(q,&q,extent,token);
4312 (void) CloneString(&primitive_info[j].text,token);
4316 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
4317 if ((fabs(mvg_info.point.x-primitive_info->point.x) < MagickEpsilon) &&
4318 (fabs(mvg_info.point.y-primitive_info->point.y) < MagickEpsilon))
4320 mvg_info.point=primitive_info->point;
4321 primitive_info->point.x+=cursor;
4325 mvg_info.point=primitive_info->point;
4328 (void) FormatLocaleString(geometry,MagickPathExtent,
"%+f%+f",
4329 primitive_info->point.x,primitive_info->point.y);
4330 clone_info->render=MagickFalse;
4331 clone_info->text=AcquireString(token);
4332 status&=GetTypeMetrics(image,clone_info,&metrics);
4333 clone_info=DestroyDrawInfo(clone_info);
4334 cursor+=metrics.width;
4335 if (graphic_context[n]->compliance != SVGCompliance)
4339 case ImagePrimitive:
4341 if (primitive_info[j].coordinates != 2)
4346 (void) GetNextToken(q,&q,extent,token);
4347 (void) CloneString(&primitive_info[j].text,token);
4354 primitive_info[i].primitive=UndefinedPrimitive;
4355 if ((draw_info->debug != MagickFalse) && (q > p))
4356 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int) (q-p),p);
4360 status&=CheckPrimitiveExtent(&mvg_info,ExpandAffine(
4361 &graphic_context[n]->affine));
4362 primitive_info=(*mvg_info.primitive_info);
4365 status&=CheckPrimitiveExtent(&mvg_info,(
double)
4366 graphic_context[n]->stroke_width);
4367 primitive_info=(*mvg_info.primitive_info);
4375 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4377 point=primitive_info[i].point;
4378 primitive_info[i].point.x=graphic_context[n]->affine.sx*point.x+
4379 graphic_context[n]->affine.ry*point.y+graphic_context[n]->affine.tx;
4380 primitive_info[i].point.y=graphic_context[n]->affine.rx*point.x+
4381 graphic_context[n]->affine.sy*point.y+graphic_context[n]->affine.ty;
4382 point=primitive_info[i].point;
4383 if (point.x < graphic_context[n]->bounds.x1)
4384 graphic_context[n]->bounds.x1=point.x;
4385 if (point.y < graphic_context[n]->bounds.y1)
4386 graphic_context[n]->bounds.y1=point.y;
4387 if (point.x > graphic_context[n]->bounds.x2)
4388 graphic_context[n]->bounds.x2=point.x;
4389 if (point.y > graphic_context[n]->bounds.y2)
4390 graphic_context[n]->bounds.y2=point.y;
4391 if (primitive_info[i].primitive == ImagePrimitive)
4393 if (i >= (ssize_t) number_points)
4394 ThrowFatalException(ResourceLimitFatalError,
"MemoryAllocationFailed");
4396 if (graphic_context[n]->render != MagickFalse)
4398 if ((n != 0) && (graphic_context[n]->compliance != SVGCompliance) &&
4399 (graphic_context[n]->clip_mask != (
char *) NULL) &&
4400 (LocaleCompare(graphic_context[n]->clip_mask,
4401 graphic_context[n-1]->clip_mask) != 0))
4406 clip_path=(
const char *) GetValueFromSplayTree(macros,
4407 graphic_context[n]->clip_mask);
4408 if (clip_path != (
const char *) NULL)
4409 (
void) SetImageArtifact(image,graphic_context[n]->clip_mask,
4411 status&=DrawClipPath(image,graphic_context[n],
4412 graphic_context[n]->clip_mask);
4414 status&=DrawPrimitive(image,graphic_context[n],primitive_info);
4416 proceed=SetImageProgress(image,RenderImageTag,q-primitive,(MagickSizeType)
4418 if (proceed == MagickFalse)
4423 if (draw_info->debug != MagickFalse)
4424 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end draw-image");
4428 macros=DestroySplayTree(macros);
4429 token=DestroyString(token);
4432 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4433 if (primitive_info[i].text != (
char *) NULL)
4434 primitive_info[i].text=DestroyString(primitive_info[i].text);
4435 primitive_info=(
PrimitiveInfo *) RelinquishMagickMemory(primitive_info);
4437 primitive=DestroyString(primitive);
4438 for ( ; n >= 0; n--)
4439 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
4440 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
4441 if (status == MagickFalse)
4442 ThrowBinaryImageException(DrawError,
4443 "NonconformingDrawingPrimitiveDefinition",keyword);
4444 return(status != 0 ? MagickTrue : MagickFalse);
4447 MagickExport MagickBooleanType DrawImage(
Image *image,
const DrawInfo *draw_info)
4449 return(RenderMVGContent(image,draw_info,0));
4481 MagickExport MagickBooleanType DrawPatternPath(
Image *image,
4485 property[MaxTextExtent];
4501 assert(image != (
Image *) NULL);
4502 assert(image->signature == MagickCoreSignature);
4503 assert(draw_info != (
const DrawInfo *) NULL);
4504 if (IsEventLogging() != MagickFalse)
4505 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4506 assert(name != (
const char *) NULL);
4507 (void) FormatLocaleString(property,MaxTextExtent,
"%s",name);
4508 path=GetImageArtifact(image,property);
4509 if (path == (
const char *) NULL)
4510 return(MagickFalse);
4511 (void) FormatLocaleString(property,MaxTextExtent,
"%s-geometry",name);
4512 geometry=GetImageArtifact(image,property);
4513 if (geometry == (
const char *) NULL)
4514 return(MagickFalse);
4515 if ((*pattern) != (
Image *) NULL)
4516 *pattern=DestroyImage(*pattern);
4517 image_info=AcquireImageInfo();
4518 image_info->size=AcquireString(geometry);
4519 *pattern=AcquireImage(image_info);
4520 image_info=DestroyImageInfo(image_info);
4521 (void) QueryColorDatabase(
"#00000000",&(*pattern)->background_color,
4523 (void) SetImageBackgroundColor(*pattern);
4524 if (draw_info->debug != MagickFalse)
4525 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
4526 "begin pattern-path %s %s",name,geometry);
4527 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
4528 if (clone_info->fill_pattern != (
Image *) NULL)
4529 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
4530 if (clone_info->stroke_pattern != (
Image *) NULL)
4531 clone_info->stroke_pattern=DestroyImage(clone_info->stroke_pattern);
4532 (void) FormatLocaleString(property,MaxTextExtent,
"%s-type",name);
4533 type=GetImageArtifact(image,property);
4534 if (type != (
const char *) NULL)
4535 clone_info->gradient.type=(GradientType) ParseCommandOption(
4536 MagickGradientOptions,MagickFalse,type);
4537 (void) CloneString(&clone_info->primitive,path);
4538 status=RenderMVGContent(*pattern,clone_info,0);
4539 clone_info=DestroyDrawInfo(clone_info);
4540 if (draw_info->debug != MagickFalse)
4541 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end pattern-path");
4579 for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
4581 polygon_info[i]=DestroyPolygonInfo(polygon_info[i]);
4582 polygon_info=(
PolygonInfo **) RelinquishMagickMemory(polygon_info);
4583 return(polygon_info);
4590 *magick_restrict path_info;
4598 number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
4599 polygon_info=(
PolygonInfo **) AcquireQuantumMemory(number_threads,
4600 sizeof(*polygon_info));
4603 (void) ThrowMagickException(exception,GetMagickModule(),
4604 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4607 (void) memset(polygon_info,0,number_threads*
sizeof(*polygon_info));
4608 path_info=ConvertPrimitiveToPath(draw_info,primitive_info,exception);
4609 if (path_info == (
PathInfo *) NULL)
4610 return(DestroyPolygonTLS(polygon_info));
4611 polygon_info[0]=ConvertPathToPolygon(path_info,exception);
4614 (void) ThrowMagickException(exception,GetMagickModule(),
4615 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4616 return(DestroyPolygonTLS(polygon_info));
4618 path_info=(
PathInfo *) RelinquishMagickMemory(path_info);
4619 return(polygon_info);
4622 static MagickBooleanType AcquirePolygonEdgesTLS(
PolygonInfo **polygon_info,
4628 for (i=1; i < (ssize_t) number_threads; i++)
4636 polygon_info[i]=(
PolygonInfo *) AcquireMagickMemory(
4637 sizeof(*polygon_info[i]));
4640 (void) ThrowMagickException(exception,GetMagickModule(),
4641 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4642 return(MagickFalse);
4644 polygon_info[i]->number_edges=0;
4645 edge_info=polygon_info[0]->edges;
4646 polygon_info[i]->edges=(
EdgeInfo *) AcquireQuantumMemory(
4647 polygon_info[0]->number_edges,
sizeof(*edge_info));
4648 if (polygon_info[i]->edges == (
EdgeInfo *) NULL)
4650 (void) ThrowMagickException(exception,GetMagickModule(),
4651 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4652 return(MagickFalse);
4654 (void) memcpy(polygon_info[i]->edges,edge_info,
4655 polygon_info[0]->number_edges*
sizeof(*edge_info));
4656 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4657 polygon_info[i]->edges[j].points=(
PointInfo *) NULL;
4658 polygon_info[i]->number_edges=polygon_info[0]->number_edges;
4659 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4661 edge_info=polygon_info[0]->edges+j;
4662 polygon_info[i]->edges[j].points=(
PointInfo *) AcquireQuantumMemory(
4663 edge_info->number_points,
sizeof(*edge_info));
4664 if (polygon_info[i]->edges[j].points == (
PointInfo *) NULL)
4666 (void) ThrowMagickException(exception,GetMagickModule(),
4667 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4668 return(MagickFalse);
4670 (void) memcpy(polygon_info[i]->edges[j].points,edge_info->points,
4671 edge_info->number_points*
sizeof(*edge_info->points));
4677 static size_t DestroyEdge(
PolygonInfo *polygon_info,
const ssize_t edge)
4679 assert(edge < (ssize_t) polygon_info->number_edges);
4680 polygon_info->edges[edge].points=(
PointInfo *) RelinquishMagickMemory(
4681 polygon_info->edges[edge].points);
4682 polygon_info->number_edges--;
4683 if (edge < (ssize_t) polygon_info->number_edges)
4684 (
void) memmove(polygon_info->edges+edge,polygon_info->edges+edge+1,
4685 (
size_t) (polygon_info->number_edges-edge)*
sizeof(*polygon_info->edges));
4686 return(polygon_info->number_edges);
4689 static double GetOpacityPixel(
PolygonInfo *polygon_info,
const double mid,
4690 const MagickBooleanType fill,
const FillRule fill_rule,
const ssize_t x,
4691 const ssize_t y,
double *stroke_opacity)
4718 *stroke_opacity=0.0;
4719 subpath_opacity=0.0;
4720 p=polygon_info->edges;
4721 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4723 if ((
double) y <= (p->bounds.y1-mid-0.5))
4725 if ((
double) y > (p->bounds.y2+mid+0.5))
4728 (void) DestroyEdge(polygon_info,j--);
4731 if (((
double) x <= (p->bounds.x1-mid-0.5)) ||
4732 ((double) x > (p->bounds.x2+mid+0.5)))
4734 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4735 for ( ; i < (ssize_t) p->number_points; i++)
4737 if ((
double) y <= (p->points[i-1].y-mid-0.5))
4739 if ((
double) y > (p->points[i].y+mid+0.5))
4741 if (p->scanline != (
double) y)
4743 p->scanline=(double) y;
4744 p->highwater=(size_t) i;
4750 delta.x=(q+1)->x-q->x;
4751 delta.y=(q+1)->y-q->y;
4752 beta=delta.x*(x-q->x)+delta.y*(y-q->y);
4755 delta.x=(double) x-q->x;
4756 delta.y=(
double) y-q->y;
4757 distance=delta.x*delta.x+delta.y*delta.y;
4761 alpha=delta.x*delta.x+delta.y*delta.y;
4764 delta.x=(double) x-(q+1)->x;
4765 delta.y=(double) y-(q+1)->y;
4766 distance=delta.x*delta.x+delta.y*delta.y;
4770 alpha=PerceptibleReciprocal(alpha);
4771 beta=delta.x*(y-q->y)-delta.y*(x-q->x);
4772 distance=alpha*beta*beta;
4779 if (p->ghostline == MagickFalse)
4782 if ((*stroke_opacity < 1.0) &&
4783 (distance <= ((alpha+0.25)*(alpha+0.25))))
4786 if (distance <= ((alpha+0.25)*(alpha+0.25)))
4787 *stroke_opacity=1.0;
4791 if (fabs(distance-1.0) >= MagickEpsilon)
4792 beta=sqrt((
double) distance);
4794 if (*stroke_opacity < ((alpha-0.25)*(alpha-0.25)))
4795 *stroke_opacity=(alpha-0.25)*(alpha-0.25);
4799 if ((fill == MagickFalse) || (distance > 1.0) || (subpath_opacity >= 1.0))
4801 if (distance <= 0.0)
4803 subpath_opacity=1.0;
4808 if (fabs(beta) < MagickEpsilon)
4811 if (fabs(distance-1.0) >= MagickEpsilon)
4812 beta=sqrt(distance);
4815 if (subpath_opacity < (alpha*alpha))
4816 subpath_opacity=alpha*alpha;
4822 if (fill == MagickFalse)
4824 if (subpath_opacity >= 1.0)
4830 p=polygon_info->edges;
4831 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4833 if ((
double) y <= p->bounds.y1)
4835 if (((
double) y > p->bounds.y2) || ((
double) x <= p->bounds.x1))
4837 if ((
double) x > p->bounds.x2)
4839 winding_number+=p->direction != 0 ? 1 : -1;
4842 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4843 for ( ; i < (ssize_t) (p->number_points-1); i++)
4844 if ((
double) y <= p->points[i].y)
4847 if ((((q+1)->x-q->x)*(y-q->y)) <= (((q+1)->y-q->y)*(x-q->x)))
4848 winding_number+=p->direction != 0 ? 1 : -1;
4850 if (fill_rule != NonZeroRule)
4852 if ((MagickAbsoluteValue(winding_number) & 0x01) != 0)
4856 if (MagickAbsoluteValue(winding_number) != 0)
4858 return(subpath_opacity);
4861 static MagickBooleanType DrawPolygonPrimitive(
Image *image,
4864 typedef struct _ExtentInfo
4893 **magick_restrict polygon_info;
4908 assert(image != (
Image *) NULL);
4909 assert(image->signature == MagickCoreSignature);
4910 assert(draw_info != (
DrawInfo *) NULL);
4911 assert(draw_info->signature == MagickCoreSignature);
4913 if (IsEventLogging() != MagickFalse)
4914 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4915 if (primitive_info->coordinates <= 1)
4920 polygon_info=AcquirePolygonTLS(draw_info,primitive_info,&image->exception);
4922 return(MagickFalse);
4923 if (draw_info->debug != MagickFalse)
4924 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-polygon");
4925 fill=(primitive_info->method == FillToBorderMethod) ||
4926 (primitive_info->method == FloodfillMethod) ? MagickTrue : MagickFalse;
4927 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
4928 bounds=polygon_info[0]->edges[0].bounds;
4929 artifact=GetImageArtifact(image,
"draw:render-bounding-rectangles");
4930 if (IsStringTrue(artifact) != MagickFalse)
4931 (void) DrawBoundingRectangles(image,draw_info,polygon_info[0]);
4932 for (i=1; i < (ssize_t) polygon_info[0]->number_edges; i++)
4934 p=polygon_info[0]->edges+i;
4935 if (p->bounds.x1 < bounds.x1)
4936 bounds.x1=p->bounds.x1;
4937 if (p->bounds.y1 < bounds.y1)
4938 bounds.y1=p->bounds.y1;
4939 if (p->bounds.x2 > bounds.x2)
4940 bounds.x2=p->bounds.x2;
4941 if (p->bounds.y2 > bounds.y2)
4942 bounds.y2=p->bounds.y2;
4944 bounds.x1-=(mid+1.0);
4945 bounds.y1-=(mid+1.0);
4946 bounds.x2+=(mid+1.0);
4947 bounds.y2+=(mid+1.0);
4948 if ((bounds.x1 >= (
double) image->columns) ||
4949 (bounds.y1 >= (
double) image->rows) ||
4950 (bounds.x2 <= 0.0) || (bounds.y2 <= 0.0))
4952 polygon_info=DestroyPolygonTLS(polygon_info);
4955 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double) image->columns-1.0 ?
4956 (
double) image->columns-1.0 : bounds.x1;
4957 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double) image->rows-1.0 ?
4958 (
double) image->rows-1.0 : bounds.y1;
4959 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double) image->columns-1.0 ?
4960 (
double) image->columns-1.0 : bounds.x2;
4961 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double) image->rows-1.0 ?
4962 (
double) image->rows-1.0 : bounds.y2;
4963 poly_extent.x1=CastDoubleToLong(ceil(bounds.x1-0.5));
4964 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
4965 poly_extent.x2=CastDoubleToLong(floor(bounds.x2+0.5));
4966 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
4967 number_threads=GetMagickNumberThreads(image,image,poly_extent.y2-
4968 poly_extent.y1+1,1);
4969 status=AcquirePolygonEdgesTLS(polygon_info,number_threads,&image->exception);
4970 if (status == MagickFalse)
4972 polygon_info=DestroyPolygonTLS(polygon_info);
4976 exception=(&image->exception);
4977 image_view=AcquireAuthenticCacheView(image,exception);
4978 if ((primitive_info->coordinates == 1) ||
4979 (polygon_info[0]->number_edges == 0))
4984 #if defined(MAGICKCORE_OPENMP_SUPPORT)
4985 #pragma omp parallel for schedule(static) shared(status) \
4986 num_threads(number_threads)
4988 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
4999 if (status == MagickFalse)
5002 q=GetCacheViewAuthenticPixels(image_view,x,y,(
size_t) (poly_extent.x2-
5009 for ( ; x <= poly_extent.x2; x++)
5011 if ((x == CastDoubleToLong(ceil(primitive_info->point.x-0.5))) &&
5012 (y == CastDoubleToLong(ceil(primitive_info->point.y-0.5))))
5013 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,q);
5016 sync=SyncCacheViewAuthenticPixels(image_view,exception);
5017 if (sync == MagickFalse)
5020 image_view=DestroyCacheView(image_view);
5021 polygon_info=DestroyPolygonTLS(polygon_info);
5022 if (draw_info->debug != MagickFalse)
5023 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5024 " end draw-polygon");
5030 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
5031 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
5032 #if defined(MAGICKCORE_OPENMP_SUPPORT)
5033 #pragma omp parallel for schedule(static) shared(status) \
5034 num_threads(number_threads)
5036 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5039 id = GetOpenMPThreadId();
5051 if (status == MagickFalse)
5053 q=GetCacheViewAuthenticPixels(image_view,poly_extent.x1,y,(
size_t)
5054 (poly_extent.x2-poly_extent.x1+1),1,exception);
5060 for (x=poly_extent.x1; x <= poly_extent.x2; x++)
5069 fill_opacity=GetOpacityPixel(polygon_info[
id],mid,fill,
5070 draw_info->fill_rule,x,y,&stroke_opacity);
5071 if (draw_info->stroke_antialias == MagickFalse)
5073 fill_opacity=fill_opacity > 0.5 ? 1.0 : 0.0;
5074 stroke_opacity=stroke_opacity > 0.5 ? 1.0 : 0.0;
5076 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5078 fill_opacity=(double) (QuantumRange-fill_opacity*(QuantumRange-
5079 fill_color.opacity));
5080 MagickCompositeOver(&fill_color,(MagickRealType) fill_opacity,q,
5081 (MagickRealType) q->opacity,q);
5082 (void) GetStrokeColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5084 stroke_opacity=(double) (QuantumRange-stroke_opacity*(QuantumRange-
5085 stroke_color.opacity));
5086 MagickCompositeOver(&stroke_color,(MagickRealType) stroke_opacity,q,
5087 (MagickRealType) q->opacity,q);
5090 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5093 image_view=DestroyCacheView(image_view);
5094 polygon_info=DestroyPolygonTLS(polygon_info);
5095 if (draw_info->debug != MagickFalse)
5096 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-polygon");
5127 static void LogPrimitiveInfo(
const PrimitiveInfo *primitive_info)
5153 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5154 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5155 switch (primitive_info->primitive)
5157 case PointPrimitive:
5159 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5160 "PointPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5161 methods[primitive_info->method]);
5164 case ColorPrimitive:
5166 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5167 "ColorPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5168 methods[primitive_info->method]);
5171 case MattePrimitive:
5173 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5174 "MattePrimitive %.20g,%.20g %s",(double) x,(
double) y,
5175 methods[primitive_info->method]);
5180 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5181 "TextPrimitive %.20g,%.20g",(double) x,(
double) y);
5184 case ImagePrimitive:
5186 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5187 "ImagePrimitive %.20g,%.20g",(double) x,(
double) y);
5194 p=primitive_info[0].point;
5197 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
5199 point=primitive_info[i].point;
5200 if (coordinates <= 0)
5202 coordinates=(ssize_t) primitive_info[i].coordinates;
5203 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5204 " begin open (%.20g)",(double) coordinates);
5207 point=primitive_info[i].point;
5208 if ((fabs(q.x-point.x) >= MagickEpsilon) ||
5209 (fabs(q.y-point.y) >= MagickEpsilon))
5210 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5211 " %.20g: %.18g,%.18g",(double) coordinates,point.x,point.y);
5213 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
5214 " %.20g: %g %g (duplicate)",(
double) coordinates,point.x,point.y);
5217 if (coordinates > 0)
5219 if ((fabs(p.x-point.x) >= MagickEpsilon) ||
5220 (fabs(p.y-point.y) >= MagickEpsilon))
5221 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end last (%.20g)",
5222 (double) coordinates);
5224 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end open (%.20g)",
5225 (
double) coordinates);
5229 MagickExport MagickBooleanType DrawPrimitive(
Image *image,
5248 if (draw_info->debug != MagickFalse)
5250 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5251 " begin draw-primitive");
5252 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5253 " affine: %g,%g,%g,%g,%g,%g",draw_info->affine.sx,
5254 draw_info->affine.rx,draw_info->affine.ry,draw_info->affine.sy,
5255 draw_info->affine.tx,draw_info->affine.ty);
5257 exception=(&image->exception);
5259 if ((IsGrayColorspace(image->colorspace) != MagickFalse) &&
5260 ((IsPixelGray(&draw_info->fill) == MagickFalse) ||
5261 (IsPixelGray(&draw_info->stroke) == MagickFalse)))
5262 status=SetImageColorspace(image,sRGBColorspace);
5263 if (draw_info->compliance == SVGCompliance)
5265 status&=SetImageClipMask(image,draw_info->clipping_mask);
5266 status&=SetImageMask(image,draw_info->composite_mask);
5268 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5269 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5270 image_view=AcquireAuthenticCacheView(image,exception);
5271 switch (primitive_info->primitive)
5273 case ColorPrimitive:
5275 switch (primitive_info->method)
5283 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5286 (void) GetFillColor(draw_info,x,y,q);
5287 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5295 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5296 for (y=0; y < (ssize_t) image->rows; y++)
5301 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5305 for (x=0; x < (ssize_t) image->columns; x++)
5307 if (IsColorSimilar(image,q,&target) == MagickFalse)
5312 (void) GetFillColor(draw_info,x,y,q);
5315 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5316 if (status == MagickFalse)
5321 case FloodfillMethod:
5322 case FillToBorderMethod:
5327 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5328 if (primitive_info->method == FillToBorderMethod)
5330 target.red=(MagickRealType) draw_info->border_color.red;
5331 target.green=(MagickRealType) draw_info->border_color.green;
5332 target.blue=(MagickRealType) draw_info->border_color.blue;
5334 status&=FloodfillPaintImage(image,DefaultChannels,draw_info,&target,x,
5335 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5341 for (y=0; y < (ssize_t) image->rows; y++)
5349 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5353 for (x=0; x < (ssize_t) image->columns; x++)
5355 (void) GetFillColor(draw_info,x,y,q);
5358 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5359 if (status == MagickFalse)
5367 case MattePrimitive:
5369 if (image->matte == MagickFalse)
5370 status&=SetImageAlphaChannel(image,OpaqueAlphaChannel);
5371 switch (primitive_info->method)
5382 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5385 (void) GetFillColor(draw_info,x,y,&pixel);
5386 SetPixelOpacity(q,pixel.opacity);
5387 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5396 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5397 for (y=0; y < (ssize_t) image->rows; y++)
5405 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5409 for (x=0; x < (ssize_t) image->columns; x++)
5411 if (IsColorSimilar(image,q,&target) == MagickFalse)
5416 (void) GetFillColor(draw_info,x,y,&pixel);
5417 SetPixelOpacity(q,pixel.opacity);
5420 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5421 if (status == MagickFalse)
5426 case FloodfillMethod:
5427 case FillToBorderMethod:
5432 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5433 if (primitive_info->method == FillToBorderMethod)
5435 target.red=(MagickRealType) draw_info->border_color.red;
5436 target.green=(MagickRealType) draw_info->border_color.green;
5437 target.blue=(MagickRealType) draw_info->border_color.blue;
5439 status&=FloodfillPaintImage(image,OpacityChannel,draw_info,&target,x,
5440 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5449 for (y=0; y < (ssize_t) image->rows; y++)
5457 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5461 for (x=0; x < (ssize_t) image->columns; x++)
5463 (void) GetFillColor(draw_info,x,y,&pixel);
5464 SetPixelOpacity(q,pixel.opacity);
5467 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5468 if (status == MagickFalse)
5476 case ImagePrimitive:
5482 composite_geometry[MaxTextExtent];
5498 if (primitive_info->text == (
char *) NULL)
5500 clone_info=AcquireImageInfo();
5501 composite_images=(
Image *) NULL;
5502 if (LocaleNCompare(primitive_info->text,
"data:",5) == 0)
5503 composite_images=ReadInlineImage(clone_info,primitive_info->text,
5506 if (*primitive_info->text !=
'\0')
5517 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5519 (void) SetImageInfo(clone_info,1,exception);
5520 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5522 if (clone_info->size != (
char *) NULL)
5523 clone_info->size=DestroyString(clone_info->size);
5524 if (clone_info->extract != (
char *) NULL)
5525 clone_info->extract=DestroyString(clone_info->extract);
5526 path_status=GetPathAttributes(clone_info->filename,&attributes);
5527 if (path_status != MagickFalse)
5529 if (S_ISCHR(attributes.st_mode) == 0)
5530 composite_images=ReadImage(clone_info,exception);
5532 (
void) ThrowMagickException(exception,GetMagickModule(),
5533 FileOpenError,
"UnableToOpenFile",
"`%s'",
5534 clone_info->filename);
5537 if ((LocaleCompare(clone_info->magick,
"ftp") != 0) &&
5538 (LocaleCompare(clone_info->magick,
"http") != 0) &&
5539 (LocaleCompare(clone_info->magick,
"https") != 0) &&
5540 (LocaleCompare(clone_info->magick,
"vid") != 0))
5541 composite_images=ReadImage(clone_info,exception);
5543 (
void) ThrowMagickException(exception,GetMagickModule(),
5544 FileOpenError,
"UnableToOpenFile",
"`%s'",clone_info->filename);
5546 clone_info=DestroyImageInfo(clone_info);
5547 if (composite_images == (
Image *) NULL)
5552 composite_image=RemoveFirstImageFromList(&composite_images);
5553 composite_images=DestroyImageList(composite_images);
5554 (void) SetImageProgressMonitor(composite_image,(MagickProgressMonitor)
5555 NULL,(
void *) NULL);
5556 x1=CastDoubleToLong(ceil(primitive_info[1].point.x-0.5));
5557 y1=CastDoubleToLong(ceil(primitive_info[1].point.y-0.5));
5558 if (((x1 != 0L) && (x1 != (ssize_t) composite_image->columns)) ||
5559 ((y1 != 0L) && (y1 != (ssize_t) composite_image->rows)))
5562 geometry[MaxTextExtent];
5567 (void) FormatLocaleString(geometry,MaxTextExtent,
"%gx%g!",
5568 primitive_info[1].point.x,primitive_info[1].point.y);
5569 composite_image->filter=image->filter;
5570 status&=TransformImage(&composite_image,(
char *) NULL,geometry);
5572 if (composite_image->matte == MagickFalse)
5573 status&=SetImageAlphaChannel(composite_image,OpaqueAlphaChannel);
5574 if (draw_info->opacity != OpaqueOpacity)
5575 status&=SetImageOpacity(composite_image,draw_info->opacity);
5576 SetGeometry(image,&geometry);
5577 image->gravity=draw_info->gravity;
5580 (void) FormatLocaleString(composite_geometry,MaxTextExtent,
5581 "%.20gx%.20g%+.20g%+.20g",(
double) composite_image->columns,(double)
5582 composite_image->rows,(
double) geometry.x,(double) geometry.y);
5583 (void) ParseGravityGeometry(image,composite_geometry,&geometry,
5585 affine=draw_info->affine;
5586 affine.tx=(double) geometry.x;
5587 affine.ty=(
double) geometry.y;
5588 composite_image->interpolate=image->interpolate;
5589 if ((draw_info->compose == OverCompositeOp) ||
5590 (draw_info->compose == SrcOverCompositeOp))
5591 status&=DrawAffineImage(image,composite_image,&affine);
5593 status&=CompositeImage(image,draw_info->compose,composite_image,
5594 geometry.x,geometry.y);
5595 composite_image=DestroyImage(composite_image);
5598 case PointPrimitive:
5606 if ((y < 0) || (y >= (ssize_t) image->rows))
5608 if ((x < 0) || (x >= (ssize_t) image->columns))
5610 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5613 (void) GetFillColor(draw_info,x,y,&fill_color);
5614 MagickCompositeOver(&fill_color,(MagickRealType) fill_color.opacity,q,
5615 (MagickRealType) q->opacity,q);
5616 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5622 geometry[MaxTextExtent];
5627 if (primitive_info->text == (
char *) NULL)
5629 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5630 (void) CloneString(&clone_info->text,primitive_info->text);
5631 (void) FormatLocaleString(geometry,MaxTextExtent,
"%+f%+f",
5632 primitive_info->point.x,primitive_info->point.y);
5633 (void) CloneString(&clone_info->geometry,geometry);
5634 status&=AnnotateImage(image,clone_info);
5635 clone_info=DestroyDrawInfo(clone_info);
5647 if (IsEventLogging() != MagickFalse)
5648 LogPrimitiveInfo(primitive_info);
5649 scale=ExpandAffine(&draw_info->affine);
5650 if ((draw_info->dash_pattern != (
double *) NULL) &&
5651 (fabs(draw_info->dash_pattern[0]) >= MagickEpsilon) &&
5652 (fabs(scale*draw_info->stroke_width) >= MagickEpsilon) &&
5653 (draw_info->stroke.opacity != (Quantum) TransparentOpacity))
5658 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5659 clone_info->stroke_width=0.0;
5660 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5661 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5662 clone_info=DestroyDrawInfo(clone_info);
5663 if (status != MagickFalse)
5664 status&=DrawDashPolygon(draw_info,primitive_info,image);
5667 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5669 ((draw_info->stroke.opacity != (Quantum) TransparentOpacity) ||
5670 (draw_info->stroke_pattern != (
Image *) NULL)))
5682 closed_path=primitive_info[0].closed_subpath;
5683 i=(ssize_t) primitive_info[0].coordinates;
5684 x=fabs(primitive_info[i-1].point.x-primitive_info[0].point.x);
5685 y=fabs(primitive_info[i-1].point.y-primitive_info[0].point.y);
5686 if ((x < MagickEpsilon) && (y < MagickEpsilon))
5687 closed_path=MagickTrue;
5688 if ((((draw_info->linecap == RoundCap) ||
5689 (closed_path != MagickFalse)) &&
5690 (draw_info->linejoin == RoundJoin)) ||
5691 (primitive_info[i].primitive != UndefinedPrimitive))
5693 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5696 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5697 clone_info->stroke_width=0.0;
5698 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5699 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5700 clone_info=DestroyDrawInfo(clone_info);
5701 if (status != MagickFalse)
5702 status&=DrawStrokePolygon(image,draw_info,primitive_info);
5705 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5709 image_view=DestroyCacheView(image_view);
5710 if (draw_info->compliance == SVGCompliance)
5712 status&=SetImageClipMask(image,(
Image *) NULL);
5713 status&=SetImageMask(image,(
Image *) NULL);
5715 if (draw_info->debug != MagickFalse)
5716 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-primitive");
5717 return(status != 0 ? MagickTrue : MagickFalse);
5750 static MagickBooleanType DrawRoundLinecap(
Image *image,
5759 for (i=0; i < 4; i++)
5760 linecap[i]=(*primitive_info);
5761 linecap[0].coordinates=4;
5762 linecap[1].point.x+=2.0*MagickEpsilon;
5763 linecap[2].point.x+=2.0*MagickEpsilon;
5764 linecap[2].point.y+=2.0*MagickEpsilon;
5765 linecap[3].point.y+=2.0*MagickEpsilon;
5766 linecap[4].primitive=UndefinedPrimitive;
5767 return(DrawPolygonPrimitive(image,draw_info,linecap));
5770 static MagickBooleanType DrawStrokePolygon(
Image *image,
5792 if (draw_info->debug != MagickFalse)
5793 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5794 " begin draw-stroke-polygon");
5795 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5796 clone_info->fill=draw_info->stroke;
5797 if (clone_info->fill_pattern != (
Image *) NULL)
5798 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
5799 if (clone_info->stroke_pattern != (
Image *) NULL)
5800 clone_info->fill_pattern=CloneImage(clone_info->stroke_pattern,0,0,
5801 MagickTrue,&clone_info->stroke_pattern->exception);
5802 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5803 clone_info->stroke_width=0.0;
5804 clone_info->fill_rule=NonZeroRule;
5806 for (p=primitive_info; p->primitive != UndefinedPrimitive; p+=p->coordinates)
5808 if (p->coordinates == 1)
5810 stroke_polygon=TraceStrokePolygon(draw_info,p,&image->exception);
5816 status&=DrawPolygonPrimitive(image,clone_info,stroke_polygon);
5817 stroke_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(stroke_polygon);
5820 q=p+p->coordinates-1;
5821 closed_path=p->closed_subpath;
5822 if ((draw_info->linecap == RoundCap) && (closed_path == MagickFalse))
5824 status&=DrawRoundLinecap(image,draw_info,p);
5825 status&=DrawRoundLinecap(image,draw_info,q);
5828 clone_info=DestroyDrawInfo(clone_info);
5829 if (draw_info->debug != MagickFalse)
5830 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5831 " end draw-stroke-polygon");
5832 return(status != 0 ? MagickTrue : MagickFalse);
5858 MagickExport
void GetAffineMatrix(
AffineMatrix *affine_matrix)
5861 if (IsEventLogging() != MagickFalse)
5862 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5863 (void) memset(affine_matrix,0,
sizeof(*affine_matrix));
5864 affine_matrix->sx=1.0;
5865 affine_matrix->sy=1.0;
5909 assert(draw_info != (
DrawInfo *) NULL);
5910 if (IsEventLogging() != MagickFalse)
5911 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5912 (void) memset(draw_info,0,
sizeof(*draw_info));
5913 clone_info=CloneImageInfo(image_info);
5914 GetAffineMatrix(&draw_info->affine);
5915 exception=AcquireExceptionInfo();
5916 (void) QueryColorDatabase(
"#000F",&draw_info->fill,exception);
5917 (void) QueryColorDatabase(
"#FFF0",&draw_info->stroke,exception);
5918 draw_info->stroke_antialias=clone_info->antialias;
5919 draw_info->stroke_width=1.0;
5920 draw_info->fill_rule=EvenOddRule;
5921 draw_info->opacity=OpaqueOpacity;
5922 draw_info->fill_opacity=OpaqueOpacity;
5923 draw_info->stroke_opacity=OpaqueOpacity;
5924 draw_info->linecap=ButtCap;
5925 draw_info->linejoin=MiterJoin;
5926 draw_info->miterlimit=10;
5927 draw_info->decorate=NoDecoration;
5928 if (clone_info->font != (
char *) NULL)
5929 draw_info->font=AcquireString(clone_info->font);
5930 if (clone_info->density != (
char *) NULL)
5931 draw_info->density=AcquireString(clone_info->density);
5932 draw_info->text_antialias=clone_info->antialias;
5933 draw_info->pointsize=12.0;
5934 if (fabs(clone_info->pointsize) >= MagickEpsilon)
5935 draw_info->pointsize=clone_info->pointsize;
5936 draw_info->undercolor.opacity=(Quantum) TransparentOpacity;
5937 draw_info->border_color=clone_info->border_color;
5938 draw_info->compose=OverCompositeOp;
5939 if (clone_info->server_name != (
char *) NULL)
5940 draw_info->server_name=AcquireString(clone_info->server_name);
5941 draw_info->render=MagickTrue;
5942 draw_info->clip_path=MagickFalse;
5943 draw_info->debug=(GetLogEventMask() & (DrawEvent | AnnotateEvent)) != 0 ?
5944 MagickTrue : MagickFalse;
5945 option=GetImageOption(clone_info,
"direction");
5946 if (option != (
const char *) NULL)
5947 draw_info->direction=(DirectionType) ParseCommandOption(
5948 MagickDirectionOptions,MagickFalse,option);
5950 draw_info->direction=UndefinedDirection;
5951 option=GetImageOption(clone_info,
"encoding");
5952 if (option != (
const char *) NULL)
5953 (void) CloneString(&draw_info->encoding,option);
5954 option=GetImageOption(clone_info,
"family");
5955 if (option != (
const char *) NULL)
5956 (void) CloneString(&draw_info->family,option);
5957 option=GetImageOption(clone_info,
"fill");
5958 if (option != (
const char *) NULL)
5959 (void) QueryColorDatabase(option,&draw_info->fill,exception);
5960 option=GetImageOption(clone_info,
"gravity");
5961 if (option != (
const char *) NULL)
5962 draw_info->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
5963 MagickFalse,option);
5964 option=GetImageOption(clone_info,
"interline-spacing");
5965 if (option != (
const char *) NULL)
5966 draw_info->interline_spacing=GetDrawValue(option,&next_token);
5967 option=GetImageOption(clone_info,
"interword-spacing");
5968 if (option != (
const char *) NULL)
5969 draw_info->interword_spacing=GetDrawValue(option,&next_token);
5970 option=GetImageOption(clone_info,
"kerning");
5971 if (option != (
const char *) NULL)
5972 draw_info->kerning=GetDrawValue(option,&next_token);
5973 option=GetImageOption(clone_info,
"stroke");
5974 if (option != (
const char *) NULL)
5975 (void) QueryColorDatabase(option,&draw_info->stroke,exception);
5976 option=GetImageOption(clone_info,
"strokewidth");
5977 if (option != (
const char *) NULL)
5978 draw_info->stroke_width=GetDrawValue(option,&next_token);
5979 option=GetImageOption(clone_info,
"style");
5980 if (option != (
const char *) NULL)
5981 draw_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
5982 MagickFalse,option);
5983 option=GetImageOption(clone_info,
"undercolor");
5984 if (option != (
const char *) NULL)
5985 (void) QueryColorDatabase(option,&draw_info->undercolor,exception);
5986 option=GetImageOption(clone_info,
"weight");
5987 if (option != (
const char *) NULL)
5992 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,option);
5994 weight=(ssize_t) StringToUnsignedLong(option);
5995 draw_info->weight=(size_t) weight;
5997 exception=DestroyExceptionInfo(exception);
5998 draw_info->signature=MagickCoreSignature;
5999 clone_info=DestroyImageInfo(clone_info);
6027 static inline double Permutate(
const ssize_t n,
const ssize_t k)
6036 for (i=k+1; i <= n; i++)
6038 for (i=1; i <= (n-k); i++)
6066 center.x=0.5*(end.x+start.x);
6067 center.y=0.5*(end.y+start.y);
6068 radius.x=fabs(center.x-start.x);
6069 radius.y=fabs(center.y-start.y);
6070 return(TraceEllipse(mvg_info,center,radius,degrees));
6073 static MagickBooleanType TraceArcPath(
MVGInfo *mvg_info,
const PointInfo start,
6075 const MagickBooleanType large_arc,
const MagickBooleanType sweep)
6112 offset=mvg_info->offset;
6113 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6114 primitive_info->coordinates=0;
6115 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6116 (fabs(start.y-end.y) < MagickEpsilon))
6117 return(TracePoint(primitive_info,end));
6118 radii.x=fabs(arc.x);
6119 radii.y=fabs(arc.y);
6120 if ((radii.x < MagickEpsilon) || (radii.y < MagickEpsilon))
6121 return(TraceLine(primitive_info,start,end));
6122 cosine=cos(DegreesToRadians(fmod((
double) angle,360.0)));
6123 sine=sin(DegreesToRadians(fmod((
double) angle,360.0)));
6124 center.x=(double) (cosine*(end.x-start.x)/2+sine*(end.y-start.y)/2);
6125 center.y=(double) (cosine*(end.y-start.y)/2-sine*(end.x-start.x)/2);
6126 delta=(center.x*center.x)/(radii.x*radii.x)+(center.y*center.y)/
6128 if (delta < MagickEpsilon)
6129 return(TraceLine(primitive_info,start,end));
6132 radii.x*=sqrt((
double) delta);
6133 radii.y*=sqrt((
double) delta);
6135 points[0].x=(double) (cosine*start.x/radii.x+sine*start.y/radii.x);
6136 points[0].y=(double) (cosine*start.y/radii.y-sine*start.x/radii.y);
6137 points[1].x=(double) (cosine*end.x/radii.x+sine*end.y/radii.x);
6138 points[1].y=(double) (cosine*end.y/radii.y-sine*end.x/radii.y);
6139 alpha=points[1].x-points[0].x;
6140 beta=points[1].y-points[0].y;
6141 if (fabs(alpha*alpha+beta*beta) < MagickEpsilon)
6142 return(TraceLine(primitive_info,start,end));
6143 factor=PerceptibleReciprocal(alpha*alpha+beta*beta)-0.25;
6148 factor=sqrt((
double) factor);
6149 if (sweep == large_arc)
6152 center.x=(double) ((points[0].x+points[1].x)/2-factor*beta);
6153 center.y=(double) ((points[0].y+points[1].y)/2+factor*alpha);
6154 alpha=atan2(points[0].y-center.y,points[0].x-center.x);
6155 theta=atan2(points[1].y-center.y,points[1].x-center.x)-alpha;
6156 if ((theta < 0.0) && (sweep != MagickFalse))
6157 theta+=2.0*MagickPI;
6159 if ((theta > 0.0) && (sweep == MagickFalse))
6160 theta-=2.0*MagickPI;
6161 arc_segments=(size_t) CastDoubleToLong(ceil(fabs((
double) (theta/(0.5*
6162 MagickPI+MagickEpsilon)))));
6165 for (i=0; i < (ssize_t) arc_segments; i++)
6167 beta=0.5*((alpha+(i+1)*theta/arc_segments)-(alpha+i*theta/arc_segments));
6168 gamma=(8.0/3.0)*sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))*
6169 sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))/
6170 sin(fmod((
double) beta,DegreesToRadians(360.0)));
6171 points[0].x=(double) (center.x+cos(fmod((
double) (alpha+(
double) i*theta/
6172 arc_segments),DegreesToRadians(360.0)))-gamma*sin(fmod((
double) (alpha+
6173 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6174 points[0].y=(double) (center.y+sin(fmod((
double) (alpha+(
double) i*theta/
6175 arc_segments),DegreesToRadians(360.0)))+gamma*cos(fmod((
double) (alpha+
6176 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6177 points[2].x=(double) (center.x+cos(fmod((
double) (alpha+(double) (i+1)*
6178 theta/arc_segments),DegreesToRadians(360.0))));
6179 points[2].y=(double) (center.y+sin(fmod((
double) (alpha+(double) (i+1)*
6180 theta/arc_segments),DegreesToRadians(360.0))));
6181 points[1].x=(double) (points[2].x+gamma*sin(fmod((
double) (alpha+(double)
6182 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6183 points[1].y=(double) (points[2].y-gamma*cos(fmod((
double) (alpha+(double)
6184 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6185 p->point.x=(p == primitive_info) ? start.x : (p-1)->point.x;
6186 p->point.y=(p == primitive_info) ? start.y : (p-1)->point.y;
6187 (p+1)->point.x=(
double) (cosine*radii.x*points[0].x-sine*radii.y*
6189 (p+1)->point.y=(
double) (sine*radii.x*points[0].x+cosine*radii.y*
6191 (p+2)->point.x=(
double) (cosine*radii.x*points[1].x-sine*radii.y*
6193 (p+2)->point.y=(
double) (sine*radii.x*points[1].x+cosine*radii.y*
6195 (p+3)->point.x=(
double) (cosine*radii.x*points[2].x-sine*radii.y*
6197 (p+3)->point.y=(
double) (sine*radii.x*points[2].x+cosine*radii.y*
6199 if (i == (ssize_t) (arc_segments-1))
6201 status&=TraceBezier(mvg_info,4);
6204 p=(*mvg_info->primitive_info)+mvg_info->offset;
6205 mvg_info->offset+=p->coordinates;
6209 return(MagickFalse);
6210 mvg_info->offset=offset;
6211 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6212 primitive_info->coordinates=(
size_t) (p-primitive_info);
6213 primitive_info->closed_subpath=MagickFalse;
6214 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6216 p->primitive=primitive_info->primitive;
6222 static MagickBooleanType TraceBezier(
MVGInfo *mvg_info,
6223 const size_t number_coordinates)
6252 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6253 quantum=number_coordinates;
6254 for (i=0; i < (ssize_t) number_coordinates; i++)
6256 for (j=i+1; j < (ssize_t) number_coordinates; j++)
6258 alpha=fabs(primitive_info[j].point.x-primitive_info[i].point.x);
6259 if (alpha > (
double) MAGICK_SSIZE_MAX)
6261 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6262 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6263 return(MagickFalse);
6265 if (alpha > (
double) quantum)
6266 quantum=(
size_t) alpha;
6267 alpha=fabs(primitive_info[j].point.y-primitive_info[i].point.y);
6268 if (alpha > (
double) MAGICK_SSIZE_MAX)
6270 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6271 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6272 return(MagickFalse);
6274 if (alpha > (
double) quantum)
6275 quantum=(
size_t) alpha;
6278 coefficients=(
double *) AcquireQuantumMemory(number_coordinates,
6279 sizeof(*coefficients));
6280 quantum=MagickMin(quantum/number_coordinates,BezierQuantum);
6281 points=(
PointInfo *) AcquireQuantumMemory(quantum,number_coordinates*
6283 if ((coefficients == (
double *) NULL) || (points == (
PointInfo *) NULL))
6286 points=(
PointInfo *) RelinquishMagickMemory(points);
6287 if (coefficients != (
double *) NULL)
6288 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6289 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6290 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6291 return(MagickFalse);
6293 control_points=quantum*number_coordinates;
6294 if (CheckPrimitiveExtent(mvg_info,(
double) control_points+1) == MagickFalse)
6296 points=(
PointInfo *) RelinquishMagickMemory(points);
6297 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6298 return(MagickFalse);
6300 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6304 end=primitive_info[number_coordinates-1].point;
6305 for (i=0; i < (ssize_t) number_coordinates; i++)
6306 coefficients[i]=Permutate((ssize_t) number_coordinates-1,i);
6308 for (i=0; i < (ssize_t) control_points; i++)
6313 alpha=pow((
double) (1.0-weight),(
double) number_coordinates-1.0);
6314 for (j=0; j < (ssize_t) number_coordinates; j++)
6316 point.x+=alpha*coefficients[j]*p->point.x;
6317 point.y+=alpha*coefficients[j]*p->point.y;
6318 alpha*=weight/(1.0-weight);
6322 weight+=1.0/control_points;
6328 for (i=0; i < (ssize_t) control_points; i++)
6330 if (TracePoint(p,points[i]) == MagickFalse)
6332 points=(
PointInfo *) RelinquishMagickMemory(points);
6333 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6334 return(MagickFalse);
6338 if (TracePoint(p,end) == MagickFalse)
6340 points=(
PointInfo *) RelinquishMagickMemory(points);
6341 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6342 return(MagickFalse);
6345 primitive_info->coordinates=(size_t) (p-primitive_info);
6346 primitive_info->closed_subpath=MagickFalse;
6347 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6349 p->primitive=primitive_info->primitive;
6352 points=(
PointInfo *) RelinquishMagickMemory(points);
6353 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6357 static MagickBooleanType TraceCircle(
MVGInfo *mvg_info,
const PointInfo start,
6369 alpha=end.x-start.x;
6371 radius=hypot((
double) alpha,(
double) beta);
6372 offset.x=(double) radius;
6373 offset.y=(double) radius;
6376 return(TraceEllipse(mvg_info,start,offset,degrees));
6379 static MagickBooleanType TraceEllipse(
MVGInfo *mvg_info,
const PointInfo center,
6405 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6406 primitive_info->coordinates=0;
6407 if ((fabs(radii.x) < MagickEpsilon) || (fabs(radii.y) < MagickEpsilon))
6409 delta=2.0*PerceptibleReciprocal(MagickMax(radii.x,radii.y));
6411 if ((delta >= 0.0) && (delta < (MagickPI/8.0)))
6412 step=MagickPI/4.0/(MagickPI*PerceptibleReciprocal(delta)/2.0);
6413 angle.x=DegreesToRadians(arc.x);
6417 angle.y=DegreesToRadians(y);
6418 coordinates=ceil((angle.y-angle.x)/step+1.0);
6419 if (CheckPrimitiveExtent(mvg_info,coordinates) == MagickFalse)
6420 return(MagickFalse);
6421 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6422 for (p=primitive_info; angle.x < angle.y; angle.x+=step)
6424 point.x=cos(fmod(angle.x,DegreesToRadians(360.0)))*radii.x+center.x;
6425 point.y=sin(fmod(angle.x,DegreesToRadians(360.0)))*radii.y+center.y;
6426 if (TracePoint(p,point) == MagickFalse)
6427 return(MagickFalse);
6430 point.x=cos(fmod(angle.y,DegreesToRadians(360.0)))*radii.x+center.x;
6431 point.y=sin(fmod(angle.y,DegreesToRadians(360.0)))*radii.y+center.y;
6432 if (TracePoint(p,point) == MagickFalse)
6433 return(MagickFalse);
6435 primitive_info->coordinates=(size_t) (p-primitive_info);
6436 primitive_info->closed_subpath=MagickFalse;
6437 x=fabs(primitive_info[0].point.x-
6438 primitive_info[primitive_info->coordinates-1].point.x);
6439 y=fabs(primitive_info[0].point.y-
6440 primitive_info[primitive_info->coordinates-1].point.y);
6441 if ((x < MagickEpsilon) && (y < MagickEpsilon))
6442 primitive_info->closed_subpath=MagickTrue;
6443 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6445 p->primitive=primitive_info->primitive;
6451 static MagickBooleanType TraceLine(
PrimitiveInfo *primitive_info,
6454 if (TracePoint(primitive_info,start) == MagickFalse)
6455 return(MagickFalse);
6456 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6457 (fabs(start.y-end.y) < MagickEpsilon))
6459 primitive_info->primitive=PointPrimitive;
6460 primitive_info->coordinates=1;
6463 if (TracePoint(primitive_info+1,end) == MagickFalse)
6464 return(MagickFalse);
6465 (primitive_info+1)->primitive=primitive_info->primitive;
6466 primitive_info->coordinates=2;
6467 primitive_info->closed_subpath=MagickFalse;
6471 static ssize_t TracePath(
Image *image,
MVGInfo *mvg_info,
const char *path)
6475 token[MaxTextExtent] =
"";
6493 points[4] = { {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0} },
6516 subpath_offset=mvg_info->offset;
6517 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6520 number_coordinates=0;
6523 primitive_type=primitive_info->primitive;
6525 for (p=path; *p !=
'\0'; )
6527 if (status == MagickFalse)
6529 while (isspace((
int) ((
unsigned char) *p)) != 0)
6533 last_attribute=attribute;
6534 attribute=(int) (*p++);
6544 large_arc = MagickFalse,
6545 sweep = MagickFalse;
6555 (void) GetNextToken(p,&p,MaxTextExtent,token);
6557 (void) GetNextToken(p,&p,MaxTextExtent,token);
6558 arc.x=GetDrawValue(token,&next_token);
6559 if (token == next_token)
6560 ThrowPointExpectedException(image,token);
6561 (void) GetNextToken(p,&p,MaxTextExtent,token);
6563 (void) GetNextToken(p,&p,MaxTextExtent,token);
6564 arc.y=GetDrawValue(token,&next_token);
6565 if (token == next_token)
6566 ThrowPointExpectedException(image,token);
6567 (void) GetNextToken(p,&p,MaxTextExtent,token);
6569 (void) GetNextToken(p,&p,MaxTextExtent,token);
6570 angle=GetDrawValue(token,&next_token);
6571 if (token == next_token)
6572 ThrowPointExpectedException(image,token);
6573 (void) GetNextToken(p,&p,MaxTextExtent,token);
6575 (void) GetNextToken(p,&p,MaxTextExtent,token);
6576 large_arc=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6577 (void) GetNextToken(p,&p,MaxTextExtent,token);
6579 (void) GetNextToken(p,&p,MaxTextExtent,token);
6580 sweep=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6582 (void) GetNextToken(p,&p,MaxTextExtent,token);
6583 (void) GetNextToken(p,&p,MaxTextExtent,token);
6585 (void) GetNextToken(p,&p,MaxTextExtent,token);
6586 x=GetDrawValue(token,&next_token);
6587 if (token == next_token)
6588 ThrowPointExpectedException(image,token);
6589 (void) GetNextToken(p,&p,MaxTextExtent,token);
6591 (void) GetNextToken(p,&p,MaxTextExtent,token);
6592 y=GetDrawValue(token,&next_token);
6593 if (token == next_token)
6594 ThrowPointExpectedException(image,token);
6595 end.x=(double) (attribute == (
int)
'A' ? x : point.x+x);
6596 end.y=(double) (attribute == (
int)
'A' ? y : point.y+y);
6597 status&=TraceArcPath(mvg_info,point,end,arc,angle,large_arc,sweep);
6598 q=(*mvg_info->primitive_info)+mvg_info->offset;
6599 mvg_info->offset+=q->coordinates;
6602 while (isspace((
int) ((
unsigned char) *p)) != 0)
6606 }
while (IsPoint(p) != MagickFalse);
6618 for (i=1; i < 4; i++)
6620 (void) GetNextToken(p,&p,MaxTextExtent,token);
6622 (void) GetNextToken(p,&p,MaxTextExtent,token);
6623 x=GetDrawValue(token,&next_token);
6624 if (token == next_token)
6625 ThrowPointExpectedException(image,token);
6626 (void) GetNextToken(p,&p,MaxTextExtent,token);
6628 (void) GetNextToken(p,&p,MaxTextExtent,token);
6629 y=GetDrawValue(token,&next_token);
6630 if (token == next_token)
6631 ThrowPointExpectedException(image,token);
6632 end.x=(double) (attribute == (
int)
'C' ? x : point.x+x);
6633 end.y=(double) (attribute == (
int)
'C' ? y : point.y+y);
6636 for (i=0; i < 4; i++)
6637 (q+i)->point=points[i];
6638 if (TraceBezier(mvg_info,4) == MagickFalse)
6640 q=(*mvg_info->primitive_info)+mvg_info->offset;
6641 mvg_info->offset+=q->coordinates;
6644 while (isspace((
int) ((
unsigned char) *p)) != 0)
6648 }
while (IsPoint(p) != MagickFalse);
6656 (void) GetNextToken(p,&p,MaxTextExtent,token);
6658 (void) GetNextToken(p,&p,MaxTextExtent,token);
6659 x=GetDrawValue(token,&next_token);
6660 if (token == next_token)
6661 ThrowPointExpectedException(image,token);
6662 point.x=(double) (attribute == (
int)
'H' ? x: point.x+x);
6663 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6665 q=(*mvg_info->primitive_info)+mvg_info->offset;
6666 if (TracePoint(q,point) == MagickFalse)
6668 mvg_info->offset+=q->coordinates;
6670 while (isspace((
int) ((
unsigned char) *p)) != 0)
6674 }
while (IsPoint(p) != MagickFalse);
6685 (void) GetNextToken(p,&p,MaxTextExtent,token);
6687 (void) GetNextToken(p,&p,MaxTextExtent,token);
6688 x=GetDrawValue(token,&next_token);
6689 if (token == next_token)
6690 ThrowPointExpectedException(image,token);
6691 (void) GetNextToken(p,&p,MaxTextExtent,token);
6693 (void) GetNextToken(p,&p,MaxTextExtent,token);
6694 y=GetDrawValue(token,&next_token);
6695 if (token == next_token)
6696 ThrowPointExpectedException(image,token);
6697 point.x=(double) (attribute == (
int)
'L' ? x : point.x+x);
6698 point.y=(double) (attribute == (
int)
'L' ? y : point.y+y);
6699 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6701 q=(*mvg_info->primitive_info)+mvg_info->offset;
6702 if (TracePoint(q,point) == MagickFalse)
6704 mvg_info->offset+=q->coordinates;
6706 while (isspace((
int) ((
unsigned char) *p)) != 0)
6710 }
while (IsPoint(p) != MagickFalse);
6719 if (mvg_info->offset != subpath_offset)
6721 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6722 primitive_info->coordinates=(size_t) (q-primitive_info);
6723 number_coordinates+=primitive_info->coordinates;
6725 subpath_offset=mvg_info->offset;
6730 (void) GetNextToken(p,&p,MaxTextExtent,token);
6732 (void) GetNextToken(p,&p,MaxTextExtent,token);
6733 x=GetDrawValue(token,&next_token);
6734 if (token == next_token)
6735 ThrowPointExpectedException(image,token);
6736 (void) GetNextToken(p,&p,MaxTextExtent,token);
6738 (void) GetNextToken(p,&p,MaxTextExtent,token);
6739 y=GetDrawValue(token,&next_token);
6740 if (token == next_token)
6741 ThrowPointExpectedException(image,token);
6742 point.x=(double) (attribute == (
int)
'M' ? x : point.x+x);
6743 point.y=(double) (attribute == (
int)
'M' ? y : point.y+y);
6747 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6749 q=(*mvg_info->primitive_info)+mvg_info->offset;
6750 if (TracePoint(q,point) == MagickFalse)
6752 mvg_info->offset+=q->coordinates;
6754 while (isspace((
int) ((
unsigned char) *p)) != 0)
6758 }
while (IsPoint(p) != MagickFalse);
6770 for (i=1; i < 3; i++)
6772 (void) GetNextToken(p,&p,MaxTextExtent,token);
6774 (void) GetNextToken(p,&p,MaxTextExtent,token);
6775 x=GetDrawValue(token,&next_token);
6776 if (token == next_token)
6777 ThrowPointExpectedException(image,token);
6778 (void) GetNextToken(p,&p,MaxTextExtent,token);
6780 (void) GetNextToken(p,&p,MaxTextExtent,token);
6781 y=GetDrawValue(token,&next_token);
6782 if (token == next_token)
6783 ThrowPointExpectedException(image,token);
6786 end.x=(double) (attribute == (
int)
'Q' ? x : point.x+x);
6787 end.y=(double) (attribute == (
int)
'Q' ? y : point.y+y);
6790 for (i=0; i < 3; i++)
6791 (q+i)->point=points[i];
6792 if (TraceBezier(mvg_info,3) == MagickFalse)
6794 q=(*mvg_info->primitive_info)+mvg_info->offset;
6795 mvg_info->offset+=q->coordinates;
6798 while (isspace((
int) ((
unsigned char) *p)) != 0)
6802 }
while (IsPoint(p) != MagickFalse);
6813 points[0]=points[3];
6814 points[1].x=2.0*points[3].x-points[2].x;
6815 points[1].y=2.0*points[3].y-points[2].y;
6816 for (i=2; i < 4; i++)
6818 (void) GetNextToken(p,&p,MaxTextExtent,token);
6820 (void) GetNextToken(p,&p,MaxTextExtent,token);
6821 x=GetDrawValue(token,&next_token);
6822 if (token == next_token)
6823 ThrowPointExpectedException(image,token);
6824 (void) GetNextToken(p,&p,MaxTextExtent,token);
6826 (void) GetNextToken(p,&p,MaxTextExtent,token);
6827 y=GetDrawValue(token,&next_token);
6828 if (token == next_token)
6829 ThrowPointExpectedException(image,token);
6832 end.x=(double) (attribute == (
int)
'S' ? x : point.x+x);
6833 end.y=(double) (attribute == (
int)
'S' ? y : point.y+y);
6836 if (strchr(
"CcSs",last_attribute) == (
char *) NULL)
6841 for (i=0; i < 4; i++)
6842 (q+i)->point=points[i];
6843 if (TraceBezier(mvg_info,4) == MagickFalse)
6845 q=(*mvg_info->primitive_info)+mvg_info->offset;
6846 mvg_info->offset+=q->coordinates;
6849 last_attribute=attribute;
6850 while (isspace((
int) ((
unsigned char) *p)) != 0)
6854 }
while (IsPoint(p) != MagickFalse);
6865 points[0]=points[2];
6866 points[1].x=2.0*points[2].x-points[1].x;
6867 points[1].y=2.0*points[2].y-points[1].y;
6868 for (i=2; i < 3; i++)
6870 (void) GetNextToken(p,&p,MaxTextExtent,token);
6872 (void) GetNextToken(p,&p,MaxTextExtent,token);
6873 x=GetDrawValue(token,&next_token);
6874 if (token == next_token)
6875 ThrowPointExpectedException(image,token);
6876 (void) GetNextToken(p,&p,MaxTextExtent,token);
6878 (void) GetNextToken(p,&p,MaxTextExtent,token);
6879 y=GetDrawValue(token,&next_token);
6880 if (token == next_token)
6881 ThrowPointExpectedException(image,token);
6882 end.x=(double) (attribute == (
int)
'T' ? x : point.x+x);
6883 end.y=(double) (attribute == (
int)
'T' ? y : point.y+y);
6886 if (status == MagickFalse)
6888 if (strchr(
"QqTt",last_attribute) == (
char *) NULL)
6893 for (i=0; i < 3; i++)
6894 (q+i)->point=points[i];
6895 if (TraceBezier(mvg_info,3) == MagickFalse)
6897 q=(*mvg_info->primitive_info)+mvg_info->offset;
6898 mvg_info->offset+=q->coordinates;
6901 last_attribute=attribute;
6902 while (isspace((
int) ((
unsigned char) *p)) != 0)
6906 }
while (IsPoint(p) != MagickFalse);
6917 (void) GetNextToken(p,&p,MaxTextExtent,token);
6919 (void) GetNextToken(p,&p,MaxTextExtent,token);
6920 y=GetDrawValue(token,&next_token);
6921 if (token == next_token)
6922 ThrowPointExpectedException(image,token);
6923 point.y=(double) (attribute == (
int)
'V' ? y : point.y+y);
6924 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6926 q=(*mvg_info->primitive_info)+mvg_info->offset;
6927 if (TracePoint(q,point) == MagickFalse)
6929 mvg_info->offset+=q->coordinates;
6931 while (isspace((
int) ((
unsigned char) *p)) != 0)
6935 }
while (IsPoint(p) != MagickFalse);
6945 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6947 q=(*mvg_info->primitive_info)+mvg_info->offset;
6948 if (TracePoint(q,point) == MagickFalse)
6950 mvg_info->offset+=q->coordinates;
6952 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6953 primitive_info->coordinates=(size_t) (q-primitive_info);
6954 primitive_info->closed_subpath=MagickTrue;
6955 number_coordinates+=primitive_info->coordinates;
6957 subpath_offset=mvg_info->offset;
6963 ThrowPointExpectedException(image,token);
6968 if (status == MagickFalse)
6970 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6971 primitive_info->coordinates=(size_t) (q-primitive_info);
6972 number_coordinates+=primitive_info->coordinates;
6973 for (i=0; i < (ssize_t) number_coordinates; i++)
6976 q->primitive=primitive_type;
6978 q->method=FillToBorderMethod;
6981 return((ssize_t) number_coordinates);
6984 static MagickBooleanType TraceRectangle(
PrimitiveInfo *primitive_info,
6997 if (TracePoint(p,start) == MagickFalse)
6998 return(MagickFalse);
7002 if (TracePoint(p,point) == MagickFalse)
7003 return(MagickFalse);
7005 if (TracePoint(p,end) == MagickFalse)
7006 return(MagickFalse);
7010 if (TracePoint(p,point) == MagickFalse)
7011 return(MagickFalse);
7013 if (TracePoint(p,start) == MagickFalse)
7014 return(MagickFalse);
7016 primitive_info->coordinates=(size_t) (p-primitive_info);
7017 primitive_info->closed_subpath=MagickTrue;
7018 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7020 p->primitive=primitive_info->primitive;
7026 static MagickBooleanType TraceRoundRectangle(
MVGInfo *mvg_info,
7046 offset=mvg_info->offset;
7047 segment.x=fabs(end.x-start.x);
7048 segment.y=fabs(end.y-start.y);
7049 if ((segment.x < MagickEpsilon) || (segment.y < MagickEpsilon))
7051 (*mvg_info->primitive_info+mvg_info->offset)->coordinates=0;
7054 if (arc.x > (0.5*segment.x))
7055 arc.x=0.5*segment.x;
7056 if (arc.y > (0.5*segment.y))
7057 arc.y=0.5*segment.y;
7058 point.x=start.x+segment.x-arc.x;
7059 point.y=start.y+arc.y;
7062 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7063 return(MagickFalse);
7064 p=(*mvg_info->primitive_info)+mvg_info->offset;
7065 mvg_info->offset+=p->coordinates;
7066 point.x=start.x+segment.x-arc.x;
7067 point.y=start.y+segment.y-arc.y;
7070 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7071 return(MagickFalse);
7072 p=(*mvg_info->primitive_info)+mvg_info->offset;
7073 mvg_info->offset+=p->coordinates;
7074 point.x=start.x+arc.x;
7075 point.y=start.y+segment.y-arc.y;
7078 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7079 return(MagickFalse);
7080 p=(*mvg_info->primitive_info)+mvg_info->offset;
7081 mvg_info->offset+=p->coordinates;
7082 point.x=start.x+arc.x;
7083 point.y=start.y+arc.y;
7086 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7087 return(MagickFalse);
7088 p=(*mvg_info->primitive_info)+mvg_info->offset;
7089 mvg_info->offset+=p->coordinates;
7090 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7091 return(MagickFalse);
7092 p=(*mvg_info->primitive_info)+mvg_info->offset;
7093 if (TracePoint(p,(*mvg_info->primitive_info+offset)->point) == MagickFalse)
7094 return(MagickFalse);
7096 mvg_info->offset=offset;
7097 primitive_info=(*mvg_info->primitive_info)+offset;
7098 primitive_info->coordinates=(size_t) (p-primitive_info);
7099 primitive_info->closed_subpath=MagickTrue;
7100 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7102 p->primitive=primitive_info->primitive;
7108 static MagickBooleanType TraceSquareLinecap(
PrimitiveInfo *primitive_info,
7109 const size_t number_vertices,
const double offset)
7126 for (i=1; i < (ssize_t) number_vertices; i++)
7128 dx=primitive_info[0].point.x-primitive_info[i].point.x;
7129 dy=primitive_info[0].point.y-primitive_info[i].point.y;
7130 if ((fabs((
double) dx) >= MagickEpsilon) ||
7131 (fabs((
double) dy) >= MagickEpsilon))
7134 if (i == (ssize_t) number_vertices)
7135 i=(ssize_t) number_vertices-1L;
7136 distance=hypot((
double) dx,(
double) dy);
7137 primitive_info[0].point.x=(double) (primitive_info[i].point.x+
7138 dx*(distance+offset)/distance);
7139 primitive_info[0].point.y=(double) (primitive_info[i].point.y+
7140 dy*(distance+offset)/distance);
7141 for (j=(ssize_t) number_vertices-2; j >= 0; j--)
7143 dx=primitive_info[number_vertices-1].point.x-primitive_info[j].point.x;
7144 dy=primitive_info[number_vertices-1].point.y-primitive_info[j].point.y;
7145 if ((fabs((
double) dx) >= MagickEpsilon) ||
7146 (fabs((
double) dy) >= MagickEpsilon))
7149 distance=hypot((
double) dx,(
double) dy);
7150 primitive_info[number_vertices-1].point.x=(double) (primitive_info[j].point.x+
7151 dx*(distance+offset)/distance);
7152 primitive_info[number_vertices-1].point.y=(double) (primitive_info[j].point.y+
7153 dy*(distance+offset)/distance);
7160 #define MaxStrokePad (6*BezierQuantum+360)
7161 #define CheckPathExtent(pad_p,pad_q) \
7163 if ((pad_p) > MaxBezierCoordinates) \
7164 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7166 if ((ssize_t) (p+(pad_p)) >= (ssize_t) extent_p) \
7168 if (~extent_p < (pad_p)) \
7169 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7172 extent_p+=(pad_p); \
7173 stroke_p=(PointInfo *) ResizeQuantumMemory(stroke_p,extent_p+ \
7174 MaxStrokePad,sizeof(*stroke_p)); \
7177 if ((pad_q) > MaxBezierCoordinates) \
7178 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7180 if ((ssize_t) (q+(pad_q)) >= (ssize_t) extent_q) \
7182 if (~extent_q < (pad_q)) \
7183 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7186 extent_q+=(pad_q); \
7187 stroke_q=(PointInfo *) ResizeQuantumMemory(stroke_q,extent_q+ \
7188 MaxStrokePad,sizeof(*stroke_q)); \
7191 if ((stroke_p == (PointInfo *) NULL) || (stroke_q == (PointInfo *) NULL)) \
7193 if (stroke_p != (PointInfo *) NULL) \
7194 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7195 if (stroke_q != (PointInfo *) NULL) \
7196 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7197 polygon_primitive=(PrimitiveInfo *) \
7198 RelinquishMagickMemory(polygon_primitive); \
7199 (void) ThrowMagickException(exception,GetMagickModule(), \
7200 ResourceLimitError,"MemoryAllocationFailed","`%s'",""); \
7201 return((PrimitiveInfo *) NULL); \
7205 typedef struct _StrokeSegment
7251 inverse_slope = {0.0, 0.0},
7258 number_vertices=primitive_info->coordinates;
7259 polygon_primitive=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7260 number_vertices+2UL,
sizeof(*polygon_primitive));
7263 (void) ThrowMagickException(exception,GetMagickModule(),
7264 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7267 (void) memcpy(polygon_primitive,primitive_info,(
size_t) number_vertices*
7268 sizeof(*polygon_primitive));
7269 offset.x=primitive_info[number_vertices-1].point.x-primitive_info[0].point.x;
7270 offset.y=primitive_info[number_vertices-1].point.y-primitive_info[0].point.y;
7271 closed_path=(fabs(offset.x) < MagickEpsilon) &&
7272 (fabs(offset.y) < MagickEpsilon) ? MagickTrue : MagickFalse;
7273 if (((draw_info->linejoin == RoundJoin) ||
7274 (draw_info->linejoin == MiterJoin)) && (closed_path != MagickFalse))
7276 polygon_primitive[number_vertices]=primitive_info[1];
7279 polygon_primitive[number_vertices].primitive=UndefinedPrimitive;
7285 for (n=1; n < (ssize_t) number_vertices; n++)
7287 dx.p=polygon_primitive[n].point.x-polygon_primitive[0].point.x;
7288 dy.p=polygon_primitive[n].point.y-polygon_primitive[0].point.y;
7289 if ((fabs(dx.p) >= MagickEpsilon) || (fabs(dy.p) >= MagickEpsilon))
7292 if (n == (ssize_t) number_vertices)
7294 if ((draw_info->linecap != RoundCap) || (closed_path != MagickFalse))
7300 sizeof(*stroke_polygon));
7301 stroke_polygon[0]=polygon_primitive[0];
7302 stroke_polygon[0].coordinates=0;
7305 return(stroke_polygon);
7307 n=(ssize_t) number_vertices-1L;
7309 extent_p=2*number_vertices;
7310 extent_q=2*number_vertices;
7311 stroke_p=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_p+MaxStrokePad,
7313 stroke_q=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_q+MaxStrokePad,
7318 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7320 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7322 RelinquishMagickMemory(polygon_primitive);
7323 (void) ThrowMagickException(exception,GetMagickModule(),
7324 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7328 inverse_slope.p=0.0;
7329 if (fabs(dx.p) < MagickEpsilon)
7332 slope.p=dy.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7334 slope.p=dy.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7337 if (fabs(dy.p) < MagickEpsilon)
7340 inverse_slope.p=dx.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7342 inverse_slope.p=dx.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7347 inverse_slope.p=(-1.0*PerceptibleReciprocal(slope.p));
7349 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
7350 miterlimit=(double) (draw_info->miterlimit*draw_info->miterlimit*mid*mid);
7351 if ((draw_info->linecap == SquareCap) && (closed_path == MagickFalse))
7352 (void) TraceSquareLinecap(polygon_primitive,number_vertices,mid);
7353 offset.x=sqrt((
double) (mid*mid/(inverse_slope.p*inverse_slope.p+1.0)));
7354 offset.y=(double) (offset.x*inverse_slope.p);
7355 if ((dy.p*offset.x-dx.p*offset.y) > 0.0)
7357 box_p[0].x=polygon_primitive[0].point.x-offset.x;
7358 box_p[0].y=polygon_primitive[0].point.y-offset.x*inverse_slope.p;
7359 box_p[1].x=polygon_primitive[n].point.x-offset.x;
7360 box_p[1].y=polygon_primitive[n].point.y-offset.x*inverse_slope.p;
7361 box_q[0].x=polygon_primitive[0].point.x+offset.x;
7362 box_q[0].y=polygon_primitive[0].point.y+offset.x*inverse_slope.p;
7363 box_q[1].x=polygon_primitive[n].point.x+offset.x;
7364 box_q[1].y=polygon_primitive[n].point.y+offset.x*inverse_slope.p;
7368 box_p[0].x=polygon_primitive[0].point.x+offset.x;
7369 box_p[0].y=polygon_primitive[0].point.y+offset.y;
7370 box_p[1].x=polygon_primitive[n].point.x+offset.x;
7371 box_p[1].y=polygon_primitive[n].point.y+offset.y;
7372 box_q[0].x=polygon_primitive[0].point.x-offset.x;
7373 box_q[0].y=polygon_primitive[0].point.y-offset.y;
7374 box_q[1].x=polygon_primitive[n].point.x-offset.x;
7375 box_q[1].y=polygon_primitive[n].point.y-offset.y;
7382 stroke_q[p++]=box_q[0];
7383 stroke_p[q++]=box_p[0];
7384 for (i=(ssize_t) n+1; i < (ssize_t) number_vertices; i++)
7389 dx.q=polygon_primitive[i].point.x-polygon_primitive[n].point.x;
7390 dy.q=polygon_primitive[i].point.y-polygon_primitive[n].point.y;
7391 dot_product=dx.q*dx.q+dy.q*dy.q;
7392 if (dot_product < 0.25)
7395 inverse_slope.q=0.0;
7396 if (fabs(dx.q) < MagickEpsilon)
7399 slope.q=dy.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7401 slope.q=dy.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7404 if (fabs(dy.q) < MagickEpsilon)
7407 inverse_slope.q=dx.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7409 inverse_slope.q=dx.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7414 inverse_slope.q=(-1.0*PerceptibleReciprocal(slope.q));
7416 offset.x=sqrt((
double) (mid*mid/(inverse_slope.q*inverse_slope.q+1.0)));
7417 offset.y=(double) (offset.x*inverse_slope.q);
7418 dot_product=dy.q*offset.x-dx.q*offset.y;
7419 if (dot_product > 0.0)
7421 box_p[2].x=polygon_primitive[n].point.x-offset.x;
7422 box_p[2].y=polygon_primitive[n].point.y-offset.y;
7423 box_p[3].x=polygon_primitive[i].point.x-offset.x;
7424 box_p[3].y=polygon_primitive[i].point.y-offset.y;
7425 box_q[2].x=polygon_primitive[n].point.x+offset.x;
7426 box_q[2].y=polygon_primitive[n].point.y+offset.y;
7427 box_q[3].x=polygon_primitive[i].point.x+offset.x;
7428 box_q[3].y=polygon_primitive[i].point.y+offset.y;
7432 box_p[2].x=polygon_primitive[n].point.x+offset.x;
7433 box_p[2].y=polygon_primitive[n].point.y+offset.y;
7434 box_p[3].x=polygon_primitive[i].point.x+offset.x;
7435 box_p[3].y=polygon_primitive[i].point.y+offset.y;
7436 box_q[2].x=polygon_primitive[n].point.x-offset.x;
7437 box_q[2].y=polygon_primitive[n].point.y-offset.y;
7438 box_q[3].x=polygon_primitive[i].point.x-offset.x;
7439 box_q[3].y=polygon_primitive[i].point.y-offset.y;
7441 if (fabs((
double) (slope.p-slope.q)) < MagickEpsilon)
7448 box_p[4].x=(double) ((slope.p*box_p[0].x-box_p[0].y-slope.q*box_p[3].x+
7449 box_p[3].y)/(slope.p-slope.q));
7450 box_p[4].y=(double) (slope.p*(box_p[4].x-box_p[0].x)+box_p[0].y);
7451 box_q[4].x=(double) ((slope.p*box_q[0].x-box_q[0].y-slope.q*box_q[3].x+
7452 box_q[3].y)/(slope.p-slope.q));
7453 box_q[4].y=(double) (slope.p*(box_q[4].x-box_q[0].x)+box_q[0].y);
7455 CheckPathExtent(MaxStrokePad,MaxStrokePad);
7456 dot_product=dx.q*dy.p-dx.p*dy.q;
7457 if (dot_product <= 0.0)
7458 switch (draw_info->linejoin)
7462 stroke_q[q++]=box_q[1];
7463 stroke_q[q++]=box_q[2];
7464 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7465 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7466 if (dot_product <= miterlimit)
7467 stroke_p[p++]=box_p[4];
7470 stroke_p[p++]=box_p[1];
7471 stroke_p[p++]=box_p[2];
7477 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7478 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7479 if (dot_product <= miterlimit)
7481 stroke_q[q++]=box_q[4];
7482 stroke_p[p++]=box_p[4];
7486 stroke_q[q++]=box_q[1];
7487 stroke_q[q++]=box_q[2];
7488 stroke_p[p++]=box_p[1];
7489 stroke_p[p++]=box_p[2];
7495 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7496 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7497 if (dot_product <= miterlimit)
7498 stroke_p[p++]=box_p[4];
7501 stroke_p[p++]=box_p[1];
7502 stroke_p[p++]=box_p[2];
7504 center=polygon_primitive[n].point;
7505 theta.p=atan2(box_q[1].y-center.y,box_q[1].x-center.x);
7506 theta.q=atan2(box_q[2].y-center.y,box_q[2].x-center.x);
7507 if (theta.q < theta.p)
7508 theta.q+=2.0*MagickPI;
7509 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.q-
7510 theta.p)/(2.0*sqrt(PerceptibleReciprocal(mid))))));
7511 CheckPathExtent(MaxStrokePad,arc_segments+MaxStrokePad);
7512 stroke_q[q].x=box_q[1].x;
7513 stroke_q[q].y=box_q[1].y;
7515 for (j=1; j < (ssize_t) arc_segments; j++)
7517 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7518 stroke_q[q].x=(double) (center.x+mid*cos(fmod((
double)
7519 (theta.p+delta_theta),DegreesToRadians(360.0))));
7520 stroke_q[q].y=(double) (center.y+mid*sin(fmod((
double)
7521 (theta.p+delta_theta),DegreesToRadians(360.0))));
7524 stroke_q[q++]=box_q[2];
7531 switch (draw_info->linejoin)
7535 stroke_p[p++]=box_p[1];
7536 stroke_p[p++]=box_p[2];
7537 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7538 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7539 if (dot_product <= miterlimit)
7540 stroke_q[q++]=box_q[4];
7543 stroke_q[q++]=box_q[1];
7544 stroke_q[q++]=box_q[2];
7550 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7551 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7552 if (dot_product <= miterlimit)
7554 stroke_q[q++]=box_q[4];
7555 stroke_p[p++]=box_p[4];
7559 stroke_q[q++]=box_q[1];
7560 stroke_q[q++]=box_q[2];
7561 stroke_p[p++]=box_p[1];
7562 stroke_p[p++]=box_p[2];
7568 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7569 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7570 if (dot_product <= miterlimit)
7571 stroke_q[q++]=box_q[4];
7574 stroke_q[q++]=box_q[1];
7575 stroke_q[q++]=box_q[2];
7577 center=polygon_primitive[n].point;
7578 theta.p=atan2(box_p[1].y-center.y,box_p[1].x-center.x);
7579 theta.q=atan2(box_p[2].y-center.y,box_p[2].x-center.x);
7580 if (theta.p < theta.q)
7581 theta.p+=2.0*MagickPI;
7582 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.p-
7583 theta.q)/(2.0*sqrt((
double) (PerceptibleReciprocal(mid)))))));
7584 CheckPathExtent(arc_segments+MaxStrokePad,MaxStrokePad);
7585 stroke_p[p++]=box_p[1];
7586 for (j=1; j < (ssize_t) arc_segments; j++)
7588 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7589 stroke_p[p].x=(double) (center.x+mid*cos(fmod((
double)
7590 (theta.p+delta_theta),DegreesToRadians(360.0))));
7591 stroke_p[p].y=(double) (center.y+mid*sin(fmod((
double)
7592 (theta.p+delta_theta),DegreesToRadians(360.0))));
7595 stroke_p[p++]=box_p[2];
7602 inverse_slope.p=inverse_slope.q;
7611 stroke_p[p++]=box_p[1];
7612 stroke_q[q++]=box_q[1];
7616 stroke_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7617 (p+q+2UL*closed_path+2UL),
sizeof(*stroke_polygon));
7620 (void) ThrowMagickException(exception,GetMagickModule(),
7621 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7622 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7623 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7626 return(stroke_polygon);
7628 for (i=0; i < (ssize_t) p; i++)
7630 stroke_polygon[i]=polygon_primitive[0];
7631 stroke_polygon[i].point=stroke_p[i];
7633 if (closed_path != MagickFalse)
7635 stroke_polygon[i]=polygon_primitive[0];
7636 stroke_polygon[i].point=stroke_polygon[0].point;
7639 for ( ; i < (ssize_t) (p+q+closed_path); i++)
7641 stroke_polygon[i]=polygon_primitive[0];
7642 stroke_polygon[i].point=stroke_q[p+q+closed_path-(i+1)];
7644 if (closed_path != MagickFalse)
7646 stroke_polygon[i]=polygon_primitive[0];
7647 stroke_polygon[i].point=stroke_polygon[p+closed_path].point;
7650 stroke_polygon[i]=polygon_primitive[0];
7651 stroke_polygon[i].point=stroke_polygon[0].point;
7653 stroke_polygon[i].primitive=UndefinedPrimitive;
7654 stroke_polygon[0].coordinates=(size_t) (p+q+2*closed_path+1);
7655 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7656 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7657 polygon_primitive=(
PrimitiveInfo *) RelinquishMagickMemory(polygon_primitive);
7658 return(stroke_polygon);