48#include "MagickCore/studio.h"
49#include "MagickCore/annotate.h"
50#include "MagickCore/artifact.h"
51#include "MagickCore/blob.h"
52#include "MagickCore/cache.h"
53#include "MagickCore/cache-private.h"
54#include "MagickCore/cache-view.h"
55#include "MagickCore/channel.h"
56#include "MagickCore/color.h"
57#include "MagickCore/colorspace-private.h"
58#include "MagickCore/composite.h"
59#include "MagickCore/composite-private.h"
60#include "MagickCore/constitute.h"
61#include "MagickCore/draw.h"
62#include "MagickCore/draw-private.h"
63#include "MagickCore/enhance.h"
64#include "MagickCore/exception.h"
65#include "MagickCore/exception-private.h"
66#include "MagickCore/gem.h"
67#include "MagickCore/geometry.h"
68#include "MagickCore/image-private.h"
69#include "MagickCore/list.h"
70#include "MagickCore/log.h"
71#include "MagickCore/magick.h"
72#include "MagickCore/memory-private.h"
73#include "MagickCore/monitor.h"
74#include "MagickCore/monitor-private.h"
75#include "MagickCore/option.h"
76#include "MagickCore/paint.h"
77#include "MagickCore/pixel-accessor.h"
78#include "MagickCore/property.h"
79#include "MagickCore/resample.h"
80#include "MagickCore/resample-private.h"
81#include "MagickCore/resource_.h"
82#include "MagickCore/splay-tree.h"
83#include "MagickCore/string_.h"
84#include "MagickCore/string-private.h"
85#include "MagickCore/thread-private.h"
86#include "MagickCore/token.h"
87#include "MagickCore/transform-private.h"
88#include "MagickCore/utility.h"
93#define AntialiasThreshold (1.0/3.0)
94#define BezierQuantum 200
95#define PrimitiveExtentPad 4296.0
96#define MaxBezierCoordinates 67108864
97#define ThrowPointExpectedException(token,exception) \
99 (void) ThrowMagickException(exception,GetMagickModule(),DrawError, \
100 "NonconformingDrawingPrimitiveDefinition","`%s'",token); \
101 status=MagickFalse; \
191 *DrawClippingMask(
Image *,
const DrawInfo *,
const char *,
const char *,
194static MagickBooleanType
200 const double,
const MagickBooleanType,
const MagickBooleanType),
201 TraceBezier(
MVGInfo *,
const size_t),
207 TraceSquareLinecap(
PrimitiveInfo *,
const size_t,
const double);
233MagickExport
DrawInfo *AcquireDrawInfo(
void)
238 draw_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*draw_info));
239 GetDrawInfo((
ImageInfo *) NULL,draw_info);
279 clone_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*clone_info));
280 GetDrawInfo(image_info,clone_info);
283 exception=AcquireExceptionInfo();
284 if (draw_info->id != (
char *) NULL)
285 (void) CloneString(&clone_info->id,draw_info->id);
286 if (draw_info->primitive != (
char *) NULL)
287 (
void) CloneString(&clone_info->primitive,draw_info->primitive);
288 if (draw_info->geometry != (
char *) NULL)
289 (void) CloneString(&clone_info->geometry,draw_info->geometry);
290 clone_info->compliance=draw_info->compliance;
291 clone_info->viewbox=draw_info->viewbox;
292 clone_info->affine=draw_info->affine;
293 clone_info->gravity=draw_info->gravity;
294 clone_info->fill=draw_info->fill;
295 clone_info->stroke=draw_info->stroke;
296 clone_info->stroke_width=draw_info->stroke_width;
297 if (draw_info->fill_pattern != (
Image *) NULL)
298 clone_info->fill_pattern=CloneImage(draw_info->fill_pattern,0,0,MagickTrue,
300 if (draw_info->stroke_pattern != (
Image *) NULL)
301 clone_info->stroke_pattern=CloneImage(draw_info->stroke_pattern,0,0,
302 MagickTrue,exception);
303 clone_info->stroke_antialias=draw_info->stroke_antialias;
304 clone_info->text_antialias=draw_info->text_antialias;
305 clone_info->fill_rule=draw_info->fill_rule;
306 clone_info->linecap=draw_info->linecap;
307 clone_info->linejoin=draw_info->linejoin;
308 clone_info->miterlimit=draw_info->miterlimit;
309 clone_info->dash_offset=draw_info->dash_offset;
310 clone_info->decorate=draw_info->decorate;
311 clone_info->compose=draw_info->compose;
312 if (draw_info->text != (
char *) NULL)
313 (
void) CloneString(&clone_info->text,draw_info->text);
314 if (draw_info->font != (
char *) NULL)
315 (void) CloneString(&clone_info->font,draw_info->font);
316 if (draw_info->metrics != (
char *) NULL)
317 (
void) CloneString(&clone_info->metrics,draw_info->metrics);
318 if (draw_info->family != (
char *) NULL)
319 (void) CloneString(&clone_info->family,draw_info->family);
320 clone_info->style=draw_info->style;
321 clone_info->stretch=draw_info->stretch;
322 clone_info->weight=draw_info->weight;
323 if (draw_info->encoding != (
char *) NULL)
324 (
void) CloneString(&clone_info->encoding,draw_info->encoding);
325 clone_info->pointsize=draw_info->pointsize;
326 clone_info->kerning=draw_info->kerning;
327 clone_info->interline_spacing=draw_info->interline_spacing;
328 clone_info->interword_spacing=draw_info->interword_spacing;
329 clone_info->direction=draw_info->direction;
330 clone_info->word_break=draw_info->word_break;
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_alpha=draw_info->fill_alpha;
371 clone_info->stroke_alpha=draw_info->stroke_alpha;
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,exception);
380 if (draw_info->composite_mask != (
Image *) NULL)
381 clone_info->composite_mask=CloneImage(draw_info->composite_mask,0,0,
382 MagickTrue,exception);
383 clone_info->render=draw_info->render;
384 clone_info->debug=draw_info->debug;
385 exception=DestroyExceptionInfo(exception);
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));
436#if defined(__cplusplus) || defined(c_plusplus)
440static int DrawCompareEdges(
const void *p_edge,
const void *q_edge)
442#define DrawCompareEdge(p,q) \
444 if (((p)-(q)) < 0.0) \
446 if (((p)-(q)) > 0.0) \
457 p=((
const EdgeInfo *) p_edge)->points;
458 q=((
const EdgeInfo *) q_edge)->points;
459 DrawCompareEdge(p[0].y,q[0].y);
460 DrawCompareEdge(p[0].x,q[0].x);
461 DrawCompareEdge((p[1].x-p[0].x)*(q[1].y-q[0].y),(p[1].y-p[0].y)*
463 DrawCompareEdge(p[1].y,q[1].y);
464 DrawCompareEdge(p[1].x,q[1].x);
468#if defined(__cplusplus) || defined(c_plusplus)
472static void LogPolygonInfo(
const PolygonInfo *polygon_info)
481 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin active-edge");
482 p=polygon_info->edges;
483 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
485 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" edge %.20g:",
487 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" direction: %s",
488 p->direction != MagickFalse ?
"down" :
"up");
489 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" ghostline: %s",
490 p->ghostline != MagickFalse ?
"transparent" :
"opaque");
491 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
492 " bounds: %g,%g - %g,%g",p->bounds.x1,p->bounds.y1,
493 p->bounds.x2,p->bounds.y2);
494 for (j=0; j < (ssize_t) p->number_points; j++)
495 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %g,%g",
496 p->points[j].x,p->points[j].y);
499 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end active-edge");
502static void ReversePoints(
PointInfo *points,
const size_t number_points)
510 for (i=0; i < (number_points >> 1); i++)
513 points[i]=points[number_points-(i+1)];
514 points[number_points-(i+1)]=point;
550 polygon_info=(
PolygonInfo *) AcquireMagickMemory(
sizeof(*polygon_info));
553 (void) ThrowMagickException(exception,GetMagickModule(),
554 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
558 polygon_info->edges=(
EdgeInfo *) AcquireQuantumMemory(number_edges,
559 sizeof(*polygon_info->edges));
560 if (polygon_info->edges == (
EdgeInfo *) NULL)
562 (void) ThrowMagickException(exception,GetMagickModule(),
563 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
564 return(DestroyPolygonInfo(polygon_info));
566 (void) memset(polygon_info->edges,0,number_edges*
567 sizeof(*polygon_info->edges));
570 ghostline=MagickFalse;
574 (void) memset(&point,0,
sizeof(point));
575 (void) memset(&bounds,0,
sizeof(bounds));
576 polygon_info->edges[edge].number_points=(size_t) n;
577 polygon_info->edges[edge].scanline=0.0;
578 polygon_info->edges[edge].highwater=0;
579 polygon_info->edges[edge].ghostline=ghostline;
580 polygon_info->edges[edge].direction=(ssize_t) direction;
581 polygon_info->edges[edge].points=points;
582 polygon_info->edges[edge].bounds=bounds;
583 polygon_info->number_edges=0;
584 for (i=0; path_info[i].code != EndCode; i++)
586 if ((path_info[i].code == MoveToCode) || (path_info[i].code == OpenCode) ||
587 (path_info[i].code == GhostlineCode))
592 if ((points != (
PointInfo *) NULL) && (n >= 2))
594 if (edge == number_edges)
597 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
598 polygon_info->edges,(
size_t) number_edges,
599 sizeof(*polygon_info->edges));
600 if (polygon_info->edges == (
EdgeInfo *) NULL)
602 (void) ThrowMagickException(exception,GetMagickModule(),
603 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
604 points=(
PointInfo *) RelinquishMagickMemory(points);
605 return(DestroyPolygonInfo(polygon_info));
608 polygon_info->edges[edge].number_points=(size_t) n;
609 polygon_info->edges[edge].scanline=(-1.0);
610 polygon_info->edges[edge].highwater=0;
611 polygon_info->edges[edge].ghostline=ghostline;
612 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
614 ReversePoints(points,(
size_t) n);
615 polygon_info->edges[edge].points=points;
616 polygon_info->edges[edge].bounds=bounds;
617 polygon_info->edges[edge].bounds.y1=points[0].y;
618 polygon_info->edges[edge].bounds.y2=points[n-1].y;
620 ghostline=MagickFalse;
622 polygon_info->number_edges=edge;
627 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
631 (void) ThrowMagickException(exception,GetMagickModule(),
632 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
633 return(DestroyPolygonInfo(polygon_info));
636 ghostline=path_info[i].code == GhostlineCode ? MagickTrue : MagickFalse;
637 point=path_info[i].point;
648 next_direction=((path_info[i].point.y > point.y) ||
649 ((fabs(path_info[i].point.y-point.y) < MagickEpsilon) &&
650 (path_info[i].point.x > point.x))) ? 1 : -1;
651 if ((points != (
PointInfo *) NULL) && (direction != 0) &&
652 (direction != next_direction))
658 if (edge == number_edges)
661 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
662 polygon_info->edges,(
size_t) number_edges,
663 sizeof(*polygon_info->edges));
664 if (polygon_info->edges == (
EdgeInfo *) NULL)
666 (void) ThrowMagickException(exception,GetMagickModule(),
667 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
668 points=(
PointInfo *) RelinquishMagickMemory(points);
669 return(DestroyPolygonInfo(polygon_info));
672 polygon_info->edges[edge].number_points=(size_t) n;
673 polygon_info->edges[edge].scanline=(-1.0);
674 polygon_info->edges[edge].highwater=0;
675 polygon_info->edges[edge].ghostline=ghostline;
676 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
678 ReversePoints(points,(
size_t) n);
679 polygon_info->edges[edge].points=points;
680 polygon_info->edges[edge].bounds=bounds;
681 polygon_info->edges[edge].bounds.y1=points[0].y;
682 polygon_info->edges[edge].bounds.y2=points[n-1].y;
683 polygon_info->number_edges=edge+1;
686 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
690 (void) ThrowMagickException(exception,GetMagickModule(),
691 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
692 return(DestroyPolygonInfo(polygon_info));
695 ghostline=MagickFalse;
701 direction=next_direction;
704 if (n == (ssize_t) number_points)
707 points=(
PointInfo *) ResizeQuantumMemory(points,(
size_t) number_points,
711 (void) ThrowMagickException(exception,GetMagickModule(),
712 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
713 return(DestroyPolygonInfo(polygon_info));
716 point=path_info[i].point;
718 if (point.x < bounds.x1)
720 if (point.x > bounds.x2)
727 points=(
PointInfo *) RelinquishMagickMemory(points);
730 if (edge == number_edges)
733 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
734 polygon_info->edges,(
size_t) number_edges,
735 sizeof(*polygon_info->edges));
736 if (polygon_info->edges == (
EdgeInfo *) NULL)
738 (void) ThrowMagickException(exception,GetMagickModule(),
739 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
740 return(DestroyPolygonInfo(polygon_info));
743 polygon_info->edges[edge].number_points=(size_t) n;
744 polygon_info->edges[edge].scanline=(-1.0);
745 polygon_info->edges[edge].highwater=0;
746 polygon_info->edges[edge].ghostline=ghostline;
747 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
749 ReversePoints(points,(
size_t) n);
750 polygon_info->edges[edge].points=points;
751 polygon_info->edges[edge].bounds=bounds;
752 polygon_info->edges[edge].bounds.y1=points[0].y;
753 polygon_info->edges[edge].bounds.y2=points[n-1].y;
755 ghostline=MagickFalse;
757 polygon_info->number_edges=edge;
760 polygon_info->number_edges=edge;
761 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(polygon_info->edges,
762 polygon_info->number_edges,
sizeof(*polygon_info->edges));
763 if (polygon_info->edges == (
EdgeInfo *) NULL)
765 (void) ThrowMagickException(exception,GetMagickModule(),
766 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
767 return(DestroyPolygonInfo(polygon_info));
769 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
774 edge_info=polygon_info->edges+i;
775 edge_info->points=(
PointInfo *) ResizeQuantumMemory(edge_info->points,
776 edge_info->number_points,
sizeof(*edge_info->points));
777 if (edge_info->points == (
PointInfo *) NULL)
779 (void) ThrowMagickException(exception,GetMagickModule(),
780 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
781 return(DestroyPolygonInfo(polygon_info));
784 qsort(polygon_info->edges,(
size_t) polygon_info->number_edges,
785 sizeof(*polygon_info->edges),DrawCompareEdges);
786 if ((GetLogEventMask() & DrawEvent) != 0)
787 LogPolygonInfo(polygon_info);
788 return(polygon_info);
821static void LogPathInfo(
const PathInfo *path_info)
826 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin vector-path");
827 for (p=path_info; p->code != EndCode; p++)
828 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
829 " %g,%g %s",p->point.x,p->point.y,p->code == GhostlineCode ?
830 "moveto ghostline" : p->code == OpenCode ?
"moveto open" :
831 p->code == MoveToCode ?
"moveto" : p->code == LineToCode ?
"lineto" :
833 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end vector-path");
863 switch (primitive_info->primitive)
874 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
875 path_info=(
PathInfo *) AcquireQuantumMemory((
size_t) (3UL*i+1UL),
879 (void) ThrowMagickException(exception,GetMagickModule(),
880 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
884 closed_subpath=MagickFalse;
891 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
894 if (coordinates <= 0)
899 coordinates=primitive_info[i].coordinates;
900 p=primitive_info[i].point;
903 closed_subpath=primitive_info[i].closed_subpath;
906 if ((code == MoveToCode) || (coordinates <= 0) ||
907 (fabs(q.x-primitive_info[i].point.x) >= MagickEpsilon) ||
908 (fabs(q.y-primitive_info[i].point.y) >= MagickEpsilon))
913 path_info[n].code=code;
914 path_info[n].point=primitive_info[i].point;
915 q=primitive_info[i].point;
920 if (closed_subpath != MagickFalse)
922 closed_subpath=MagickFalse;
928 path_info[start].code=OpenCode;
929 path_info[n].code=GhostlineCode;
930 path_info[n].point=primitive_info[i].point;
932 path_info[n].code=LineToCode;
933 path_info[n].point=p;
936 path_info[n].code=EndCode;
937 path_info[n].point.x=0.0;
938 path_info[n].point.y=0.0;
939 if (IsEventLogging() != MagickFalse)
940 LogPathInfo(path_info);
941 path_info=(
PathInfo *) ResizeQuantumMemory(path_info,(
size_t) (n+1),
970 assert(draw_info != (
DrawInfo *) NULL);
971 assert(draw_info->signature == MagickCoreSignature);
972 if (IsEventLogging() != MagickFalse)
973 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
974 if (draw_info->id != (
char *) NULL)
975 draw_info->id=DestroyString(draw_info->id);
976 if (draw_info->primitive != (
char *) NULL)
977 draw_info->primitive=DestroyString(draw_info->primitive);
978 if (draw_info->text != (
char *) NULL)
979 draw_info->text=DestroyString(draw_info->text);
980 if (draw_info->geometry != (
char *) NULL)
981 draw_info->geometry=DestroyString(draw_info->geometry);
982 if (draw_info->fill_pattern != (
Image *) NULL)
983 draw_info->fill_pattern=DestroyImage(draw_info->fill_pattern);
984 if (draw_info->stroke_pattern != (
Image *) NULL)
985 draw_info->stroke_pattern=DestroyImage(draw_info->stroke_pattern);
986 if (draw_info->font != (
char *) NULL)
987 draw_info->font=DestroyString(draw_info->font);
988 if (draw_info->metrics != (
char *) NULL)
989 draw_info->metrics=DestroyString(draw_info->metrics);
990 if (draw_info->family != (
char *) NULL)
991 draw_info->family=DestroyString(draw_info->family);
992 if (draw_info->encoding != (
char *) NULL)
993 draw_info->encoding=DestroyString(draw_info->encoding);
994 if (draw_info->density != (
char *) NULL)
995 draw_info->density=DestroyString(draw_info->density);
996 if (draw_info->server_name != (
char *) NULL)
997 draw_info->server_name=(
char *)
998 RelinquishMagickMemory(draw_info->server_name);
999 if (draw_info->dash_pattern != (
double *) NULL)
1000 draw_info->dash_pattern=(
double *) RelinquishMagickMemory(
1001 draw_info->dash_pattern);
1002 if (draw_info->gradient.stops != (
StopInfo *) NULL)
1003 draw_info->gradient.stops=(
StopInfo *) RelinquishMagickMemory(
1004 draw_info->gradient.stops);
1005 if (draw_info->clip_mask != (
char *) NULL)
1006 draw_info->clip_mask=DestroyString(draw_info->clip_mask);
1007 if (draw_info->clipping_mask != (
Image *) NULL)
1008 draw_info->clipping_mask=DestroyImage(draw_info->clipping_mask);
1009 if (draw_info->composite_mask != (
Image *) NULL)
1010 draw_info->composite_mask=DestroyImage(draw_info->composite_mask);
1011 if (draw_info->image_info != (
ImageInfo *) NULL)
1012 draw_info->image_info=DestroyImageInfo(draw_info->image_info);
1013 draw_info->signature=(~MagickCoreSignature);
1014 draw_info=(
DrawInfo *) RelinquishMagickMemory(draw_info);
1065 inverse_edge.x1=edge->x1;
1066 inverse_edge.y1=edge->y1;
1067 inverse_edge.x2=edge->x2;
1068 inverse_edge.y2=edge->y2;
1069 z=affine->ry*y+affine->tx;
1070 if (affine->sx >= MagickEpsilon)
1072 intercept=(-z/affine->sx);
1074 if (x > inverse_edge.x1)
1076 intercept=(-z+(double) image->columns)/affine->sx;
1078 if (x < inverse_edge.x2)
1082 if (affine->sx < -MagickEpsilon)
1084 intercept=(-z+(double) image->columns)/affine->sx;
1086 if (x > inverse_edge.x1)
1088 intercept=(-z/affine->sx);
1090 if (x < inverse_edge.x2)
1094 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->columns))
1096 inverse_edge.x2=edge->x1;
1097 return(inverse_edge);
1102 z=affine->sy*y+affine->ty;
1103 if (affine->rx >= MagickEpsilon)
1105 intercept=(-z/affine->rx);
1107 if (x > inverse_edge.x1)
1109 intercept=(-z+(double) image->rows)/affine->rx;
1111 if (x < inverse_edge.x2)
1115 if (affine->rx < -MagickEpsilon)
1117 intercept=(-z+(double) image->rows)/affine->rx;
1119 if (x > inverse_edge.x1)
1121 intercept=(-z/affine->rx);
1123 if (x < inverse_edge.x2)
1127 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->rows))
1129 inverse_edge.x2=edge->x2;
1130 return(inverse_edge);
1132 return(inverse_edge);
1143 determinant=PerceptibleReciprocal(affine->sx*affine->sy-affine->rx*
1145 inverse_affine.sx=determinant*affine->sy;
1146 inverse_affine.rx=determinant*(-affine->rx);
1147 inverse_affine.ry=determinant*(-affine->ry);
1148 inverse_affine.sy=determinant*affine->sx;
1149 inverse_affine.tx=(-affine->tx)*inverse_affine.sx-affine->ty*
1151 inverse_affine.ty=(-affine->tx)*inverse_affine.rx-affine->ty*
1153 return(inverse_affine);
1156MagickExport MagickBooleanType DrawAffineImage(
Image *image,
1191 assert(image != (
Image *) NULL);
1192 assert(image->signature == MagickCoreSignature);
1193 if (IsEventLogging() != MagickFalse)
1194 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1195 assert(source != (
const Image *) NULL);
1196 assert(source->signature == MagickCoreSignature);
1200 extent[1].x=(double) source->columns;
1202 extent[2].x=(double) source->columns;
1203 extent[2].y=(double) source->rows;
1205 extent[3].y=(double) source->rows;
1206 for (i=0; i < 4; i++)
1212 extent[i].x=point.x*affine->sx+point.y*affine->ry+affine->tx;
1213 extent[i].y=point.x*affine->rx+point.y*affine->sy+affine->ty;
1217 for (i=1; i < 4; i++)
1219 if (min.x > extent[i].x)
1221 if (min.y > extent[i].y)
1223 if (max.x < extent[i].x)
1225 if (max.y < extent[i].y)
1231 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
1232 return(MagickFalse);
1238 inverse_affine=InverseAffineMatrix(affine);
1241 if (edge.y2 > (image->rows-1.0))
1242 edge.y2=image->rows-1.0;
1243 GetPixelInfo(image,&zero);
1244 start=CastDoubleToLong(ceil(edge.y1-0.5));
1245 stop=CastDoubleToLong(floor(edge.y2+0.5));
1246 source_view=AcquireVirtualCacheView(source,exception);
1247 image_view=AcquireAuthenticCacheView(image,exception);
1248#if defined(MAGICKCORE_OPENMP_SUPPORT)
1249 #pragma omp parallel for schedule(static) shared(status) \
1250 magick_number_threads(source,image,(size_t) (stop-start),2)
1252 for (y=start; y <= stop; y++)
1270 if (status == MagickFalse)
1272 inverse_edge=AffineEdge(source,&inverse_affine,(
double) y,&edge);
1273 if (inverse_edge.x2 < inverse_edge.x1)
1275 if (inverse_edge.x1 < 0.0)
1276 inverse_edge.x1=0.0;
1277 if (inverse_edge.x2 > image->columns-1.0)
1278 inverse_edge.x2=image->columns-1.0;
1279 q=GetCacheViewAuthenticPixels(image_view,CastDoubleToLong(
1280 ceil(inverse_edge.x1-0.5)),y,(
size_t) CastDoubleToLong(floor(
1281 inverse_edge.x2+0.5)-ceil(inverse_edge.x1-0.5)+1),1,exception);
1282 if (q == (Quantum *) NULL)
1286 for (x=CastDoubleToLong(ceil(inverse_edge.x1-0.5));
1287 x <= CastDoubleToLong(floor(inverse_edge.x2+0.5)); x++)
1289 point.x=(double) x*inverse_affine.sx+y*inverse_affine.ry+
1291 point.y=(double) x*inverse_affine.rx+y*inverse_affine.sy+
1293 status=InterpolatePixelInfo(source,source_view,UndefinedInterpolatePixel,
1294 point.x,point.y,&pixel,exception);
1295 if (status == MagickFalse)
1297 GetPixelInfoPixel(image,q,&composite);
1298 CompositePixelInfoOver(&pixel,pixel.alpha,&composite,composite.alpha,
1300 SetPixelViaPixelInfo(image,&composite,q);
1301 q+=GetPixelChannels(image);
1303 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1306 source_view=DestroyCacheView(source_view);
1307 image_view=DestroyCacheView(image_view);
1343static MagickBooleanType DrawBoundingRectangles(
Image *image,
1373 (void) memset(primitive_info,0,
sizeof(primitive_info));
1374 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1375 status=QueryColorCompliance(
"#000F",AllCompliance,&clone_info->fill,
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=QueryColorCompliance(
"#f00",AllCompliance,&clone_info->stroke,
1437 status=QueryColorCompliance(
"#0f0",AllCompliance,&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&=(MagickStatusType) 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,exception);
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=QueryColorCompliance(
"#00f",AllCompliance,&clone_info->stroke,
1462 if (status == MagickFalse)
1464 clone_info=DestroyDrawInfo(clone_info);
1465 return(MagickFalse);
1467 start.x=(double) (bounds.x1-mid);
1468 start.y=(double) (bounds.y1-mid);
1469 end.x=(double) (bounds.x2+mid);
1470 end.y=(double) (bounds.y2+mid);
1471 primitive_info[0].primitive=RectanglePrimitive;
1472 status&=(MagickStatusType) TraceRectangle(primitive_info,start,end);
1473 primitive_info[0].method=ReplaceMethod;
1474 coordinates=(ssize_t) primitive_info[0].coordinates;
1475 primitive_info[coordinates].primitive=UndefinedPrimitive;
1476 status=DrawPrimitive(image,clone_info,primitive_info,exception);
1477 clone_info=DestroyDrawInfo(clone_info);
1478 return(status == 0 ? MagickFalse : MagickTrue);
1510MagickExport MagickBooleanType DrawClipPath(
Image *image,
1522 clip_path=GetImageArtifact(image,
id);
1523 if (clip_path == (
const char *) NULL)
1524 return(MagickFalse);
1525 clipping_mask=DrawClippingMask(image,draw_info,draw_info->clip_mask,clip_path,
1527 if (clipping_mask == (
Image *) NULL)
1528 return(MagickFalse);
1529 status=SetImageMask(image,WritePixelMask,clipping_mask,exception);
1530 clipping_mask=DestroyImage(clipping_mask);
1567 const char *
id,
const char *clip_path,
ExceptionInfo *exception)
1582 assert(image != (
Image *) NULL);
1583 assert(image->signature == MagickCoreSignature);
1584 assert(draw_info != (
const DrawInfo *) NULL);
1585 if (IsEventLogging() != MagickFalse)
1586 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1587 clip_mask=AcquireImage((
const ImageInfo *) NULL,exception);
1588 status=SetImageExtent(clip_mask,image->columns,image->rows,exception);
1589 if (status == MagickFalse)
1590 return(DestroyImage(clip_mask));
1591 status=SetImageMask(clip_mask,WritePixelMask,(
Image *) NULL,exception);
1592 status=QueryColorCompliance(
"#0000",AllCompliance,
1593 &clip_mask->background_color,exception);
1594 clip_mask->background_color.alpha=(MagickRealType) TransparentAlpha;
1595 clip_mask->background_color.alpha_trait=BlendPixelTrait;
1596 status=SetImageBackgroundColor(clip_mask,exception);
1597 if (draw_info->debug != MagickFalse)
1598 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin clip-path %s",
1600 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1601 (void) CloneString(&clone_info->primitive,clip_path);
1602 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1604 if (clone_info->clip_mask != (
char *) NULL)
1605 clone_info->clip_mask=DestroyString(clone_info->clip_mask);
1606 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1608 clone_info->stroke_width=0.0;
1609 clone_info->alpha=OpaqueAlpha;
1610 clone_info->clip_path=MagickTrue;
1611 status=RenderMVGContent(clip_mask,clone_info,0,exception);
1612 clone_info=DestroyDrawInfo(clone_info);
1613 separate_mask=SeparateImage(clip_mask,AlphaChannel,exception);
1614 if (separate_mask == (
Image *) NULL)
1618 clip_mask=DestroyImage(clip_mask);
1619 clip_mask=separate_mask;
1620 status&=(MagickStatusType) NegateImage(clip_mask,MagickFalse,exception);
1622 if (status == MagickFalse)
1623 clip_mask=DestroyImage(clip_mask);
1624 if (draw_info->debug != MagickFalse)
1625 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end clip-path");
1661 const char *
id,
const char *mask_path,
ExceptionInfo *exception)
1676 assert(image != (
Image *) NULL);
1677 assert(image->signature == MagickCoreSignature);
1678 assert(draw_info != (
const DrawInfo *) NULL);
1679 if (IsEventLogging() != MagickFalse)
1680 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1681 composite_mask=AcquireImage((
const ImageInfo *) NULL,exception);
1682 status=SetImageExtent(composite_mask,image->columns,image->rows,exception);
1683 if (status == MagickFalse)
1684 return(DestroyImage(composite_mask));
1685 status=SetImageMask(composite_mask,CompositePixelMask,(
Image *) NULL,
1687 status=QueryColorCompliance(
"#0000",AllCompliance,
1688 &composite_mask->background_color,exception);
1689 composite_mask->background_color.alpha=(MagickRealType) TransparentAlpha;
1690 composite_mask->background_color.alpha_trait=BlendPixelTrait;
1691 (void) SetImageBackgroundColor(composite_mask,exception);
1692 if (draw_info->debug != MagickFalse)
1693 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin mask-path %s",
1695 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1696 (void) CloneString(&clone_info->primitive,mask_path);
1697 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1699 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1701 clone_info->stroke_width=0.0;
1702 clone_info->alpha=OpaqueAlpha;
1703 status=RenderMVGContent(composite_mask,clone_info,0,exception);
1704 clone_info=DestroyDrawInfo(clone_info);
1705 separate_mask=SeparateImage(composite_mask,AlphaChannel,exception);
1706 if (separate_mask != (
Image *) NULL)
1708 composite_mask=DestroyImage(composite_mask);
1709 composite_mask=separate_mask;
1710 status=NegateImage(composite_mask,MagickFalse,exception);
1711 if (status == MagickFalse)
1712 composite_mask=DestroyImage(composite_mask);
1714 if (status == MagickFalse)
1715 composite_mask=DestroyImage(composite_mask);
1716 if (draw_info->debug != MagickFalse)
1717 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end mask-path");
1718 return(composite_mask);
1752static MagickBooleanType DrawDashPolygon(
const DrawInfo *draw_info,
1783 assert(draw_info != (
const DrawInfo *) NULL);
1784 if (draw_info->debug != MagickFalse)
1785 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-dash");
1786 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
1787 number_vertices=(size_t) i;
1788 dash_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
1789 (2UL*number_vertices+32UL),
sizeof(*dash_polygon));
1792 (void) ThrowMagickException(exception,GetMagickModule(),
1793 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
1794 return(MagickFalse);
1796 (void) memset(dash_polygon,0,(2UL*number_vertices+32UL)*
1797 sizeof(*dash_polygon));
1798 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1799 clone_info->miterlimit=0;
1800 dash_polygon[0]=primitive_info[0];
1801 scale=ExpandAffine(&draw_info->affine);
1802 length=scale*draw_info->dash_pattern[0];
1803 offset=fabs(draw_info->dash_offset) >= MagickEpsilon ?
1804 scale*draw_info->dash_offset : 0.0;
1806 for (n=0; offset > 0.0; j=0)
1808 if (draw_info->dash_pattern[n] <= 0.0)
1810 length=scale*(draw_info->dash_pattern[n]+(n == 0 ? -0.5 : 0.5));
1811 if (offset > length)
1815 length=scale*draw_info->dash_pattern[n];
1818 if (offset < length)
1830 for (i=1; (i < (ssize_t) number_vertices) && (length >= 0.0); i++)
1832 dx=primitive_info[i].point.x-primitive_info[i-1].point.x;
1833 dy=primitive_info[i].point.y-primitive_info[i-1].point.y;
1834 maximum_length=hypot(dx,dy);
1835 if (maximum_length > (
double) (MaxBezierCoordinates >> 2))
1837 if (fabs(length) < MagickEpsilon)
1839 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1841 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1843 length=scale*draw_info->dash_pattern[n];
1845 for (total_length=0.0; (length >= 0.0) && (maximum_length >= (total_length+length)); )
1847 total_length+=length;
1848 if ((n & 0x01) != 0)
1850 dash_polygon[0]=primitive_info[0];
1851 dash_polygon[0].point.x=(double) (primitive_info[i-1].point.x+dx*
1852 total_length*PerceptibleReciprocal(maximum_length));
1853 dash_polygon[0].point.y=(double) (primitive_info[i-1].point.y+dy*
1854 total_length*PerceptibleReciprocal(maximum_length));
1859 if ((j+1) > (ssize_t) number_vertices)
1861 dash_polygon[j]=primitive_info[i-1];
1862 dash_polygon[j].point.x=(double) (primitive_info[i-1].point.x+dx*
1863 total_length*PerceptibleReciprocal(maximum_length));
1864 dash_polygon[j].point.y=(double) (primitive_info[i-1].point.y+dy*
1865 total_length*PerceptibleReciprocal(maximum_length));
1866 dash_polygon[j].coordinates=1;
1868 dash_polygon[0].coordinates=(size_t) j;
1869 dash_polygon[j].primitive=UndefinedPrimitive;
1870 status&=(MagickStatusType) DrawStrokePolygon(image,clone_info,
1871 dash_polygon,exception);
1872 if (status == MagickFalse)
1875 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1877 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1879 length=scale*draw_info->dash_pattern[n];
1881 length-=(maximum_length-total_length);
1882 if ((n & 0x01) != 0)
1884 dash_polygon[j]=primitive_info[i];
1885 dash_polygon[j].coordinates=1;
1888 if ((status != MagickFalse) && (total_length < maximum_length) &&
1889 ((n & 0x01) == 0) && (j > 1))
1891 dash_polygon[j]=primitive_info[i-1];
1892 dash_polygon[j].point.x+=MagickEpsilon;
1893 dash_polygon[j].point.y+=MagickEpsilon;
1894 dash_polygon[j].coordinates=1;
1896 dash_polygon[0].coordinates=(size_t) j;
1897 dash_polygon[j].primitive=UndefinedPrimitive;
1898 status&=(MagickStatusType) DrawStrokePolygon(image,clone_info,
1899 dash_polygon,exception);
1901 dash_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(dash_polygon);
1902 clone_info=DestroyDrawInfo(clone_info);
1903 if (draw_info->debug != MagickFalse)
1904 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-dash");
1905 return(status != 0 ? MagickTrue : MagickFalse);
1936static inline double GetStopColorOffset(
const GradientInfo *gradient,
1937 const ssize_t x,
const ssize_t y)
1939 switch (gradient->type)
1941 case UndefinedGradient:
1942 case LinearGradient:
1957 gradient_vector=(&gradient->gradient_vector);
1958 p.x=gradient_vector->x2-gradient_vector->x1;
1959 p.y=gradient_vector->y2-gradient_vector->y1;
1960 q.x=(double) x-gradient_vector->x1;
1961 q.y=(double) y-gradient_vector->y1;
1962 length=sqrt(q.x*q.x+q.y*q.y);
1963 gamma=sqrt(p.x*p.x+p.y*p.y)*length;
1964 gamma=PerceptibleReciprocal(gamma);
1965 scale=p.x*q.x+p.y*q.y;
1966 offset=gamma*scale*length;
1969 case RadialGradient:
1974 if (gradient->spread == RepeatSpread)
1976 v.x=(double) x-gradient->center.x;
1977 v.y=(double) y-gradient->center.y;
1978 return(sqrt(v.x*v.x+v.y*v.y));
1980 v.x=(double) (((x-gradient->center.x)*cos(DegreesToRadians(
1981 gradient->angle)))+((y-gradient->center.y)*sin(DegreesToRadians(
1982 gradient->angle))))*PerceptibleReciprocal(gradient->radii.x);
1983 v.y=(double) (((x-gradient->center.x)*sin(DegreesToRadians(
1984 gradient->angle)))-((y-gradient->center.y)*cos(DegreesToRadians(
1985 gradient->angle))))*PerceptibleReciprocal(gradient->radii.y);
1986 return(sqrt(v.x*v.x+v.y*v.y));
1992static int StopInfoCompare(
const void *x,
const void *y)
2000 if (stop_1->offset > stop_2->offset)
2002 if (fabs(stop_1->offset-stop_2->offset) <= MagickEpsilon)
2007MagickExport MagickBooleanType DrawGradientImage(
Image *image,
2041 assert(image != (
Image *) NULL);
2042 assert(image->signature == MagickCoreSignature);
2043 assert(draw_info != (
const DrawInfo *) NULL);
2044 if (IsEventLogging() != MagickFalse)
2045 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2046 gradient=(&draw_info->gradient);
2047 qsort(gradient->stops,gradient->number_stops,
sizeof(
StopInfo),
2049 gradient_vector=(&gradient->gradient_vector);
2050 point.x=gradient_vector->x2-gradient_vector->x1;
2051 point.y=gradient_vector->y2-gradient_vector->y1;
2052 length=sqrt(point.x*point.x+point.y*point.y);
2053 bounding_box=gradient->bounding_box;
2055 GetPixelInfo(image,&zero);
2056 image_view=AcquireAuthenticCacheView(image,exception);
2057 height=(size_t) (bounding_box.y+bounding_box.height);
2058#if defined(MAGICKCORE_OPENMP_SUPPORT)
2059 #pragma omp parallel for schedule(static) shared(status) \
2060 magick_number_threads(image,image,height,1)
2062 for (y=bounding_box.y; y < (ssize_t) height; y++)
2081 if (status == MagickFalse)
2083 q=GetCacheViewAuthenticPixels(image_view,bounding_box.x,y,(
size_t)
2084 bounding_box.width,1,exception);
2085 if (q == (Quantum *) NULL)
2092 offset=GetStopColorOffset(gradient,0,y);
2093 if (gradient->type != RadialGradient)
2094 offset*=PerceptibleReciprocal(length);
2095 width=(size_t) (bounding_box.x+bounding_box.width);
2096 for (x=bounding_box.x; x < (ssize_t) width; x++)
2098 GetPixelInfoPixel(image,q,&pixel);
2099 switch (gradient->spread)
2101 case UndefinedSpread:
2104 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2105 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2107 offset=GetStopColorOffset(gradient,x,y);
2108 if (gradient->type != RadialGradient)
2109 offset*=PerceptibleReciprocal(length);
2111 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2112 if (offset < gradient->stops[i].offset)
2114 if ((offset < 0.0) || (i == 0))
2115 composite=gradient->stops[0].color;
2117 if ((offset > 1.0) || (i == (ssize_t) gradient->number_stops))
2118 composite=gradient->stops[gradient->number_stops-1].color;
2123 alpha=(offset-gradient->stops[i].offset)/
2124 (gradient->stops[j].offset-gradient->stops[i].offset);
2125 CompositePixelInfoBlend(&gradient->stops[i].color,1.0-alpha,
2126 &gradient->stops[j].color,alpha,&composite);
2132 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2133 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2135 offset=GetStopColorOffset(gradient,x,y);
2136 if (gradient->type != RadialGradient)
2137 offset*=PerceptibleReciprocal(length);
2141 if ((ssize_t) fmod(offset,2.0) == 0)
2142 offset=fmod(offset,1.0);
2144 offset=1.0-fmod(offset,1.0);
2145 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2146 if (offset < gradient->stops[i].offset)
2149 composite=gradient->stops[0].color;
2151 if (i == (ssize_t) gradient->number_stops)
2152 composite=gradient->stops[gradient->number_stops-1].color;
2157 alpha=(offset-gradient->stops[i].offset)/
2158 (gradient->stops[j].offset-gradient->stops[i].offset);
2159 CompositePixelInfoBlend(&gradient->stops[i].color,1.0-alpha,
2160 &gradient->stops[j].color,alpha,&composite);
2172 antialias=MagickFalse;
2174 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2175 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2177 offset=GetStopColorOffset(gradient,x,y);
2178 if (gradient->type == LinearGradient)
2180 repeat=fmod(offset,length);
2182 repeat=length-fmod(-repeat,length);
2184 repeat=fmod(offset,length);
2185 antialias=(repeat < length) && ((repeat+1.0) > length) ?
2186 MagickTrue : MagickFalse;
2187 offset=PerceptibleReciprocal(length)*repeat;
2191 repeat=fmod(offset,gradient->radius);
2193 repeat=gradient->radius-fmod(-repeat,gradient->radius);
2195 repeat=fmod(offset,gradient->radius);
2196 antialias=repeat+1.0 > gradient->radius ? MagickTrue :
2198 offset=repeat*PerceptibleReciprocal(gradient->radius);
2201 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2202 if (offset < gradient->stops[i].offset)
2205 composite=gradient->stops[0].color;
2207 if (i == (ssize_t) gradient->number_stops)
2208 composite=gradient->stops[gradient->number_stops-1].color;
2213 alpha=(offset-gradient->stops[i].offset)/
2214 (gradient->stops[j].offset-gradient->stops[i].offset);
2215 if (antialias != MagickFalse)
2217 if (gradient->type == LinearGradient)
2218 alpha=length-repeat;
2220 alpha=gradient->radius-repeat;
2222 j=(ssize_t) gradient->number_stops-1L;
2224 CompositePixelInfoBlend(&gradient->stops[i].color,1.0-alpha,
2225 &gradient->stops[j].color,alpha,&composite);
2230 CompositePixelInfoOver(&composite,composite.alpha,&pixel,pixel.alpha,
2232 SetPixelViaPixelInfo(image,&pixel,q);
2233 q+=GetPixelChannels(image);
2235 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2238 image_view=DestroyCacheView(image_view);
2274static MagickBooleanType CheckPrimitiveExtent(
MVGInfo *mvg_info,
2278 **text = (
char **) NULL;
2292 quantum=
sizeof(**mvg_info->primitive_info);
2293 extent=(double) mvg_info->offset+pad+(PrimitiveExtentPad+1)*(double) quantum;
2294 if (extent <= (
double) *mvg_info->extent)
2296 if ((extent >= (
double) MAGICK_SSIZE_MAX) || (IsNaN(extent) != 0))
2297 return(MagickFalse);
2298 if (mvg_info->offset > 0)
2300 text=(
char **) AcquireQuantumMemory((
size_t) mvg_info->offset,
2302 if (text == (
char **) NULL)
2303 return(MagickFalse);
2304 for (i=0; i < mvg_info->offset; i++)
2305 text[i]=(*mvg_info->primitive_info)[i].text;
2307 *mvg_info->primitive_info=(
PrimitiveInfo *) ResizeQuantumMemory(
2308 *mvg_info->primitive_info,(
size_t) (extent+1),quantum);
2311 if (text != (
char **) NULL)
2312 text=(
char **) RelinquishMagickMemory(text);
2313 *mvg_info->extent=(size_t) extent;
2314 for (i=mvg_info->offset+1; i <= (ssize_t) extent; i++)
2316 (*mvg_info->primitive_info)[i].primitive=UndefinedPrimitive;
2317 (*mvg_info->primitive_info)[i].text=(
char *) NULL;
2324 if (text != (
char **) NULL)
2326 for (i=0; i < mvg_info->offset; i++)
2327 if (text[i] != (
char *) NULL)
2328 text[i]=DestroyString(text[i]);
2329 text=(
char **) RelinquishMagickMemory(text);
2331 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
2332 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
2333 *mvg_info->primitive_info=(
PrimitiveInfo *) AcquireCriticalMemory((
size_t)
2334 (PrimitiveExtentPad+1)*quantum);
2335 (void) memset(*mvg_info->primitive_info,0,(
size_t) ((PrimitiveExtentPad+1)*
2337 *mvg_info->extent=1;
2339 return(MagickFalse);
2342static inline double GetDrawValue(
const char *magick_restrict
string,
2343 char **magick_restrict sentinel)
2346 **magick_restrict q;
2352 value=InterpretLocaleValue(
string,q);
2357static int MVGMacroCompare(
const void *target,
const void *source)
2363 p=(
const char *) target;
2364 q=(
const char *) source;
2365 return(strcmp(p,q));
2386 if (primitive == (
const char *) NULL)
2388 macros=NewSplayTree(MVGMacroCompare,RelinquishMagickMemory,
2389 RelinquishMagickMemory);
2390 macro=AcquireString(primitive);
2391 token=AcquireString(primitive);
2392 extent=strlen(token)+MagickPathExtent;
2393 for (q=primitive; *q !=
'\0'; )
2395 if (GetNextToken(q,&q,extent,token) < 1)
2399 if (LocaleCompare(
"push",token) == 0)
2405 (void) GetNextToken(q,&q,extent,token);
2409 name[MagickPathExtent];
2420 (void) GetNextToken(q,&q,extent,token);
2423 (void) CopyMagickString(name,token,MagickPathExtent);
2425 for (p=q; *p !=
'\0'; )
2427 if (GetNextToken(p,&p,extent,token) < 1)
2431 if (LocaleCompare(token,
"pop") == 0)
2433 end=p-strlen(token)-1;
2436 if (LocaleCompare(token,
"push") == 0)
2438 if ((n == 0) && (end > start))
2443 (void) GetNextToken(p,&p,extent,token);
2444 (void) CopyMagickString(macro,start,(
size_t) (end-start));
2445 (void) AddValueToSplayTree(macros,ConstantString(name),
2446 ConstantString(macro));
2453 token=DestroyString(token);
2454 macro=DestroyString(macro);
2458static inline MagickBooleanType IsPoint(
const char *point)
2466 value=GetDrawValue(point,&p);
2467 return((fabs(value) < MagickEpsilon) && (p == point) ? MagickFalse :
2471static inline MagickBooleanType TracePoint(
PrimitiveInfo *primitive_info,
2474 primitive_info->coordinates=1;
2475 primitive_info->closed_subpath=MagickFalse;
2476 primitive_info->point=point;
2480static MagickBooleanType RenderMVGContent(
Image *image,
2483#define RenderImageTag "Render/Image"
2490 keyword[MagickPathExtent],
2491 geometry[MagickPathExtent],
2493 pattern[MagickPathExtent],
2556 assert(image != (
Image *) NULL);
2557 assert(image->signature == MagickCoreSignature);
2558 assert(draw_info != (
DrawInfo *) NULL);
2559 assert(draw_info->signature == MagickCoreSignature);
2560 if (IsEventLogging() != MagickFalse)
2561 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2562 if (depth > MagickMaxRecursionDepth)
2563 ThrowBinaryException(DrawError,
"VectorGraphicsNestedTooDeeply",
2565 if ((draw_info->primitive == (
char *) NULL) ||
2566 (*draw_info->primitive ==
'\0'))
2567 return(MagickFalse);
2568 if (draw_info->debug != MagickFalse)
2569 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"begin draw-image");
2570 if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
2571 return(MagickFalse);
2572 if ((image->alpha_trait & BlendPixelTrait) == 0)
2574 status=SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
2575 if (status == MagickFalse)
2576 return(MagickFalse);
2578 if ((*draw_info->primitive ==
'@') && (strlen(draw_info->primitive) > 1) &&
2579 (*(draw_info->primitive+1) !=
'-') && (depth == 0))
2580 primitive=FileToString(draw_info->primitive,~0UL,exception);
2582 primitive=AcquireString(draw_info->primitive);
2583 if (primitive == (
char *) NULL)
2584 return(MagickFalse);
2585 primitive_extent=(double) strlen(primitive);
2586 (void) SetImageArtifact(image,
"mvg:vector-graphics",primitive);
2593 graphic_context=(
DrawInfo **) AcquireMagickMemory(
sizeof(*graphic_context));
2594 if (graphic_context == (
DrawInfo **) NULL)
2596 primitive=DestroyString(primitive);
2597 ThrowBinaryException(ResourceLimitError,
"MemoryAllocationFailed",
2600 number_points=(size_t) PrimitiveExtentPad;
2601 primitive_info=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
2602 (number_points+1),
sizeof(*primitive_info));
2605 primitive=DestroyString(primitive);
2606 for ( ; n >= 0; n--)
2607 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
2608 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
2609 ThrowBinaryException(ResourceLimitError,
"MemoryAllocationFailed",
2612 (void) memset(primitive_info,0,(
size_t) (number_points+1)*
2613 sizeof(*primitive_info));
2614 (void) memset(&mvg_info,0,
sizeof(mvg_info));
2615 mvg_info.primitive_info=(&primitive_info);
2616 mvg_info.extent=(&number_points);
2617 mvg_info.exception=exception;
2618 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
2619 graphic_context[n]->viewbox=image->page;
2620 if ((image->page.width == 0) || (image->page.height == 0))
2622 graphic_context[n]->viewbox.width=image->columns;
2623 graphic_context[n]->viewbox.height=image->rows;
2625 token=AcquireString(primitive);
2626 extent=strlen(token)+MagickPathExtent;
2630 macros=GetMVGMacros(primitive);
2632 for (q=primitive; *q !=
'\0'; )
2637 if (GetNextToken(q,&q,MagickPathExtent,keyword) < 1)
2639 if (*keyword ==
'\0')
2641 if (*keyword ==
'#')
2646 while ((*q !=
'\n') && (*q !=
'\0'))
2650 p=q-strlen(keyword)-1;
2651 primitive_type=UndefinedPrimitive;
2652 current=graphic_context[n]->affine;
2653 GetAffineMatrix(&affine);
2662 if (LocaleCompare(
"affine",keyword) == 0)
2664 (void) GetNextToken(q,&q,extent,token);
2665 affine.sx=GetDrawValue(token,&next_token);
2666 if (token == next_token)
2667 ThrowPointExpectedException(token,exception);
2668 (void) GetNextToken(q,&q,extent,token);
2670 (void) GetNextToken(q,&q,extent,token);
2671 affine.rx=GetDrawValue(token,&next_token);
2672 if (token == next_token)
2673 ThrowPointExpectedException(token,exception);
2674 (void) GetNextToken(q,&q,extent,token);
2676 (void) GetNextToken(q,&q,extent,token);
2677 affine.ry=GetDrawValue(token,&next_token);
2678 if (token == next_token)
2679 ThrowPointExpectedException(token,exception);
2680 (void) GetNextToken(q,&q,extent,token);
2682 (void) GetNextToken(q,&q,extent,token);
2683 affine.sy=GetDrawValue(token,&next_token);
2684 if (token == next_token)
2685 ThrowPointExpectedException(token,exception);
2686 (void) GetNextToken(q,&q,extent,token);
2688 (void) GetNextToken(q,&q,extent,token);
2689 affine.tx=GetDrawValue(token,&next_token);
2690 if (token == next_token)
2691 ThrowPointExpectedException(token,exception);
2692 (void) GetNextToken(q,&q,extent,token);
2694 (void) GetNextToken(q,&q,extent,token);
2695 affine.ty=GetDrawValue(token,&next_token);
2696 if (token == next_token)
2697 ThrowPointExpectedException(token,exception);
2700 if (LocaleCompare(
"alpha",keyword) == 0)
2702 primitive_type=AlphaPrimitive;
2705 if (LocaleCompare(
"arc",keyword) == 0)
2707 primitive_type=ArcPrimitive;
2716 if (LocaleCompare(
"bezier",keyword) == 0)
2718 primitive_type=BezierPrimitive;
2721 if (LocaleCompare(
"border-color",keyword) == 0)
2723 (void) GetNextToken(q,&q,extent,token);
2724 status&=(MagickStatusType) QueryColorCompliance(token,AllCompliance,
2725 &graphic_context[n]->border_color,exception);
2734 if (LocaleCompare(
"class",keyword) == 0)
2739 (void) GetNextToken(q,&q,extent,token);
2740 if ((*token ==
'\0') || (*token ==
';'))
2748 for (i=0; i < n; i++)
2749 if (LocaleCompare(token,graphic_context[i]->
id) == 0)
2753 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2754 if ((graphic_context[n]->render != MagickFalse) &&
2755 (mvg_class != (
const char *) NULL) && (p > primitive))
2766 offset=(ssize_t) (p-primitive);
2767 elements=AcquireString(primitive);
2768 elements[offset]=
'\0';
2769 (void) ConcatenateString(&elements,mvg_class);
2770 (void) ConcatenateString(&elements,
"\n");
2771 (void) ConcatenateString(&elements,q);
2772 primitive=DestroyString(primitive);
2778 if (LocaleCompare(
"clip-path",keyword) == 0)
2786 (void) GetNextToken(q,&q,extent,token);
2792 (void) CloneString(&graphic_context[n]->clip_mask,token);
2793 clip_path=(
const char *) GetValueFromSplayTree(macros,token);
2794 if (clip_path != (
const char *) NULL)
2796 if (graphic_context[n]->clipping_mask != (
Image *) NULL)
2797 graphic_context[n]->clipping_mask=
2798 DestroyImage(graphic_context[n]->clipping_mask);
2799 graphic_context[n]->clipping_mask=DrawClippingMask(image,
2800 graphic_context[n],token,clip_path,exception);
2801 if (graphic_context[n]->compliance != SVGCompliance)
2803 clip_path=(
const char *) GetValueFromSplayTree(macros,
2804 graphic_context[n]->clip_mask);
2805 if (clip_path != (
const char *) NULL)
2806 (
void) SetImageArtifact(image,
2807 graphic_context[n]->clip_mask,clip_path);
2808 status&=(MagickStatusType) DrawClipPath(image,
2809 graphic_context[n],graphic_context[n]->clip_mask,
2815 if (LocaleCompare(
"clip-rule",keyword) == 0)
2820 (void) GetNextToken(q,&q,extent,token);
2821 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2823 if (fill_rule == -1)
2828 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2831 if (LocaleCompare(
"clip-units",keyword) == 0)
2836 (void) GetNextToken(q,&q,extent,token);
2837 clip_units=ParseCommandOption(MagickClipPathOptions,MagickFalse,
2839 if (clip_units == -1)
2844 graphic_context[n]->clip_units=(ClipPathUnits) clip_units;
2845 if (clip_units == ObjectBoundingBox)
2847 GetAffineMatrix(¤t);
2848 affine.sx=draw_info->bounds.x2;
2849 affine.sy=draw_info->bounds.y2;
2850 affine.tx=draw_info->bounds.x1;
2851 affine.ty=draw_info->bounds.y1;
2856 if (LocaleCompare(
"circle",keyword) == 0)
2858 primitive_type=CirclePrimitive;
2861 if (LocaleCompare(
"color",keyword) == 0)
2863 primitive_type=ColorPrimitive;
2866 if (LocaleCompare(
"compliance",keyword) == 0)
2872 (void) GetNextToken(q,&q,extent,token);
2873 graphic_context[n]->compliance=(ComplianceType) ParseCommandOption(
2874 MagickComplianceOptions,MagickFalse,token);
2877 if (LocaleCompare(
"currentColor",keyword) == 0)
2879 (void) GetNextToken(q,&q,extent,token);
2888 if (LocaleCompare(
"decorate",keyword) == 0)
2893 (void) GetNextToken(q,&q,extent,token);
2894 decorate=ParseCommandOption(MagickDecorateOptions,MagickFalse,
2901 graphic_context[n]->decorate=(DecorationType) decorate;
2904 if (LocaleCompare(
"density",keyword) == 0)
2906 (void) GetNextToken(q,&q,extent,token);
2907 (void) CloneString(&graphic_context[n]->density,token);
2910 if (LocaleCompare(
"direction",keyword) == 0)
2915 (void) GetNextToken(q,&q,extent,token);
2916 direction=ParseCommandOption(MagickDirectionOptions,MagickFalse,
2918 if (direction == -1)
2921 graphic_context[n]->direction=(DirectionType) direction;
2930 if (LocaleCompare(
"ellipse",keyword) == 0)
2932 primitive_type=EllipsePrimitive;
2935 if (LocaleCompare(
"encoding",keyword) == 0)
2937 (void) GetNextToken(q,&q,extent,token);
2938 (void) CloneString(&graphic_context[n]->encoding,token);
2947 if (LocaleCompare(
"fill",keyword) == 0)
2952 (void) GetNextToken(q,&q,extent,token);
2953 if (graphic_context[n]->clip_path != MagickFalse)
2955 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2956 if (mvg_class != (
const char *) NULL)
2958 (void) DrawPatternPath(image,draw_info,mvg_class,
2959 &graphic_context[n]->fill_pattern,exception);
2962 (void) FormatLocaleString(pattern,MagickPathExtent,
"%s",token);
2963 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
2965 (void) DrawPatternPath(image,draw_info,token,
2966 &graphic_context[n]->fill_pattern,exception);
2969 status&=(MagickStatusType) QueryColorCompliance(token,AllCompliance,
2970 &graphic_context[n]->fill,exception);
2971 if (graphic_context[n]->fill_alpha != (
double) OpaqueAlpha)
2972 graphic_context[n]->fill.alpha=graphic_context[n]->fill_alpha;
2975 if (LocaleCompare(
"fill-opacity",keyword) == 0)
2980 (void) GetNextToken(q,&q,extent,token);
2981 if (graphic_context[n]->clip_path != MagickFalse)
2983 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
2984 opacity=MagickMin(MagickMax(factor*
2985 GetDrawValue(token,&next_token),0.0),1.0);
2986 if (token == next_token)
2987 ThrowPointExpectedException(token,exception);
2988 if (graphic_context[n]->compliance == SVGCompliance)
2989 graphic_context[n]->fill_alpha*=opacity;
2991 graphic_context[n]->fill_alpha=(double) QuantumRange*opacity;
2992 if (graphic_context[n]->fill.alpha != (
double) TransparentAlpha)
2993 graphic_context[n]->fill.alpha=graphic_context[n]->fill_alpha;
2995 graphic_context[n]->fill.alpha=(MagickRealType)
2996 ClampToQuantum((
double) QuantumRange*opacity);
2997 graphic_context[n]->fill.alpha_trait=BlendPixelTrait;
3000 if (LocaleCompare(
"fill-rule",keyword) == 0)
3005 (void) GetNextToken(q,&q,extent,token);
3006 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
3008 if (fill_rule == -1)
3013 graphic_context[n]->fill_rule=(FillRule) fill_rule;
3016 if (LocaleCompare(
"font",keyword) == 0)
3018 (void) GetNextToken(q,&q,extent,token);
3019 (void) CloneString(&graphic_context[n]->font,token);
3020 if (LocaleCompare(
"none",token) == 0)
3021 graphic_context[n]->font=(
char *) RelinquishMagickMemory(
3022 graphic_context[n]->font);
3025 if (LocaleCompare(
"font-family",keyword) == 0)
3027 (void) GetNextToken(q,&q,extent,token);
3028 (void) CloneString(&graphic_context[n]->family,token);
3031 if (LocaleCompare(
"font-size",keyword) == 0)
3033 (void) GetNextToken(q,&q,extent,token);
3034 graphic_context[n]->pointsize=GetDrawValue(token,&next_token);
3035 if (token == next_token)
3036 ThrowPointExpectedException(token,exception);
3039 if (LocaleCompare(
"font-stretch",keyword) == 0)
3044 (void) GetNextToken(q,&q,extent,token);
3045 stretch=ParseCommandOption(MagickStretchOptions,MagickFalse,token);
3051 graphic_context[n]->stretch=(StretchType) stretch;
3054 if (LocaleCompare(
"font-style",keyword) == 0)
3059 (void) GetNextToken(q,&q,extent,token);
3060 style=ParseCommandOption(MagickStyleOptions,MagickFalse,token);
3066 graphic_context[n]->style=(StyleType) style;
3069 if (LocaleCompare(
"font-weight",keyword) == 0)
3074 (void) GetNextToken(q,&q,extent,token);
3075 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,token);
3077 weight=(ssize_t) StringToUnsignedLong(token);
3078 graphic_context[n]->weight=(size_t) weight;
3087 if (LocaleCompare(
"gradient-units",keyword) == 0)
3089 (void) GetNextToken(q,&q,extent,token);
3092 if (LocaleCompare(
"gravity",keyword) == 0)
3097 (void) GetNextToken(q,&q,extent,token);
3098 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,token);
3104 graphic_context[n]->gravity=(GravityType) gravity;
3113 if (LocaleCompare(
"image",keyword) == 0)
3118 primitive_type=ImagePrimitive;
3119 (void) GetNextToken(q,&q,extent,token);
3120 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,token);
3126 graphic_context[n]->compose=(CompositeOperator) compose;
3129 if (LocaleCompare(
"interline-spacing",keyword) == 0)
3131 (void) GetNextToken(q,&q,extent,token);
3132 graphic_context[n]->interline_spacing=GetDrawValue(token,
3134 if (token == next_token)
3135 ThrowPointExpectedException(token,exception);
3138 if (LocaleCompare(
"interword-spacing",keyword) == 0)
3140 (void) GetNextToken(q,&q,extent,token);
3141 graphic_context[n]->interword_spacing=GetDrawValue(token,
3143 if (token == next_token)
3144 ThrowPointExpectedException(token,exception);
3153 if (LocaleCompare(
"kerning",keyword) == 0)
3155 (void) GetNextToken(q,&q,extent,token);
3156 graphic_context[n]->kerning=GetDrawValue(token,&next_token);
3157 if (token == next_token)
3158 ThrowPointExpectedException(token,exception);
3167 if (LocaleCompare(
"letter-spacing",keyword) == 0)
3169 (void) GetNextToken(q,&q,extent,token);
3170 if (IsPoint(token) == MagickFalse)
3172 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3173 clone_info->text=AcquireString(
" ");
3174 status&=(MagickStatusType) GetTypeMetrics(image,clone_info,&metrics,
3176 graphic_context[n]->kerning=metrics.width*
3177 GetDrawValue(token,&next_token);
3178 clone_info=DestroyDrawInfo(clone_info);
3179 if (token == next_token)
3180 ThrowPointExpectedException(token,exception);
3183 if (LocaleCompare(
"line",keyword) == 0)
3185 primitive_type=LinePrimitive;
3194 if (LocaleCompare(
"mask",keyword) == 0)
3202 (void) GetNextToken(q,&q,extent,token);
3203 mask_path=(
const char *) GetValueFromSplayTree(macros,token);
3204 if (mask_path != (
const char *) NULL)
3206 if (graphic_context[n]->composite_mask != (
Image *) NULL)
3207 graphic_context[n]->composite_mask=
3208 DestroyImage(graphic_context[n]->composite_mask);
3209 graphic_context[n]->composite_mask=DrawCompositeMask(image,
3210 graphic_context[n],token,mask_path,exception);
3211 if (graphic_context[n]->compliance != SVGCompliance)
3212 status=SetImageMask(image,CompositePixelMask,
3213 graphic_context[n]->composite_mask,exception);
3223 if (LocaleCompare(
"offset",keyword) == 0)
3225 (void) GetNextToken(q,&q,extent,token);
3228 if (LocaleCompare(
"opacity",keyword) == 0)
3233 (void) GetNextToken(q,&q,extent,token);
3234 if (graphic_context[n]->clip_path != MagickFalse)
3236 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3237 opacity=MagickMin(MagickMax(factor*
3238 GetDrawValue(token,&next_token),0.0),1.0);
3239 if (token == next_token)
3240 ThrowPointExpectedException(token,exception);
3241 if (graphic_context[n]->compliance == SVGCompliance)
3243 graphic_context[n]->fill_alpha*=opacity;
3244 graphic_context[n]->stroke_alpha*=opacity;
3248 graphic_context[n]->fill_alpha=(double) QuantumRange*opacity;
3249 graphic_context[n]->stroke_alpha=(double) QuantumRange*opacity;
3251 if (graphic_context[n]->fill.alpha != (
double) TransparentAlpha)
3253 graphic_context[n]->fill.alpha=graphic_context[n]->fill_alpha;
3254 graphic_context[n]->stroke.alpha=graphic_context[n]->stroke_alpha;
3258 graphic_context[n]->fill.alpha=(MagickRealType)
3259 ClampToQuantum((
double) QuantumRange*opacity);
3260 graphic_context[n]->stroke.alpha=(MagickRealType)
3261 ClampToQuantum((
double) QuantumRange*opacity);
3263 graphic_context[n]->fill.alpha_trait=BlendPixelTrait;
3264 graphic_context[n]->stroke.alpha_trait=BlendPixelTrait;
3273 if (LocaleCompare(
"path",keyword) == 0)
3275 primitive_type=PathPrimitive;
3278 if (LocaleCompare(
"point",keyword) == 0)
3280 primitive_type=PointPrimitive;
3283 if (LocaleCompare(
"polyline",keyword) == 0)
3285 primitive_type=PolylinePrimitive;
3288 if (LocaleCompare(
"polygon",keyword) == 0)
3290 primitive_type=PolygonPrimitive;
3293 if (LocaleCompare(
"pop",keyword) == 0)
3295 if (GetNextToken(q,&q,extent,token) < 1)
3297 if (LocaleCompare(
"class",token) == 0)
3299 if (LocaleCompare(
"clip-path",token) == 0)
3301 if (LocaleCompare(
"defs",token) == 0)
3304 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3308 if (LocaleCompare(
"gradient",token) == 0)
3310 if (LocaleCompare(
"graphic-context",token) == 0)
3314 (void) ThrowMagickException(exception,GetMagickModule(),
3315 DrawError,
"UnbalancedGraphicContextPushPop",
"`%s'",token);
3320 if ((graphic_context[n]->clip_mask != (
char *) NULL) &&
3321 (graphic_context[n]->compliance != SVGCompliance))
3322 if (LocaleCompare(graphic_context[n]->clip_mask,
3323 graphic_context[n-1]->clip_mask) != 0)
3324 status=SetImageMask(image,WritePixelMask,(
Image *) NULL,
3326 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
3330 if (LocaleCompare(
"mask",token) == 0)
3332 if (LocaleCompare(
"pattern",token) == 0)
3334 if (LocaleCompare(
"symbol",token) == 0)
3337 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3344 if (LocaleCompare(
"push",keyword) == 0)
3346 if (GetNextToken(q,&q,extent,token) < 1)
3348 if (LocaleCompare(
"class",token) == 0)
3353 for (p=q; *q !=
'\0'; )
3355 if (GetNextToken(q,&q,extent,token) < 1)
3357 if (LocaleCompare(token,
"pop") != 0)
3359 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3360 if (LocaleCompare(token,
"class") != 0)
3364 (void) GetNextToken(q,&q,extent,token);
3367 if (LocaleCompare(
"clip-path",token) == 0)
3369 (void) GetNextToken(q,&q,extent,token);
3370 for (p=q; *q !=
'\0'; )
3372 if (GetNextToken(q,&q,extent,token) < 1)
3374 if (LocaleCompare(token,
"pop") != 0)
3376 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3377 if (LocaleCompare(token,
"clip-path") != 0)
3381 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3386 (void) GetNextToken(q,&q,extent,token);
3389 if (LocaleCompare(
"defs",token) == 0)
3392 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3396 if (LocaleCompare(
"gradient",token) == 0)
3399 key[2*MagickPathExtent],
3400 name[MagickPathExtent],
3401 type[MagickPathExtent];
3406 (void) GetNextToken(q,&q,extent,token);
3407 (void) CopyMagickString(name,token,MagickPathExtent);
3408 (void) GetNextToken(q,&q,extent,token);
3409 (void) CopyMagickString(type,token,MagickPathExtent);
3410 (void) GetNextToken(q,&q,extent,token);
3411 segment.x1=GetDrawValue(token,&next_token);
3412 if (token == next_token)
3413 ThrowPointExpectedException(token,exception);
3414 (void) GetNextToken(q,&q,extent,token);
3416 (void) GetNextToken(q,&q,extent,token);
3417 segment.y1=GetDrawValue(token,&next_token);
3418 if (token == next_token)
3419 ThrowPointExpectedException(token,exception);
3420 (void) GetNextToken(q,&q,extent,token);
3422 (void) GetNextToken(q,&q,extent,token);
3423 segment.x2=GetDrawValue(token,&next_token);
3424 if (token == next_token)
3425 ThrowPointExpectedException(token,exception);
3426 (void) GetNextToken(q,&q,extent,token);
3428 (void) GetNextToken(q,&q,extent,token);
3429 segment.y2=GetDrawValue(token,&next_token);
3430 if (token == next_token)
3431 ThrowPointExpectedException(token,exception);
3432 if (LocaleCompare(type,
"radial") == 0)
3434 (void) GetNextToken(q,&q,extent,token);
3436 (void) GetNextToken(q,&q,extent,token);
3438 for (p=q; *q !=
'\0'; )
3440 if (GetNextToken(q,&q,extent,token) < 1)
3442 if (LocaleCompare(token,
"pop") != 0)
3444 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3445 if (LocaleCompare(token,
"gradient") != 0)
3449 if ((q == (
char *) NULL) || (*q ==
'\0') ||
3450 (p == (
char *) NULL) || ((q-4) < p))
3455 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3456 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
3457 graphic_context[n]->affine.ry*segment.y1+
3458 graphic_context[n]->affine.tx;
3459 bounds.y1=graphic_context[n]->affine.rx*segment.x1+
3460 graphic_context[n]->affine.sy*segment.y1+
3461 graphic_context[n]->affine.ty;
3462 bounds.x2=graphic_context[n]->affine.sx*segment.x2+
3463 graphic_context[n]->affine.ry*segment.y2+
3464 graphic_context[n]->affine.tx;
3465 bounds.y2=graphic_context[n]->affine.rx*segment.x2+
3466 graphic_context[n]->affine.sy*segment.y2+
3467 graphic_context[n]->affine.ty;
3468 (void) FormatLocaleString(key,MagickPathExtent,
"%s",name);
3469 (void) SetImageArtifact(image,key,token);
3470 (void) FormatLocaleString(key,MagickPathExtent,
"%s-type",name);
3471 (void) SetImageArtifact(image,key,type);
3472 (void) FormatLocaleString(key,MagickPathExtent,
"%s-geometry",
3474 (void) FormatLocaleString(geometry,MagickPathExtent,
3475 "%gx%g%+.15g%+.15g",
3476 MagickMax(fabs(bounds.x2-bounds.x1+1.0),1.0),
3477 MagickMax(fabs(bounds.y2-bounds.y1+1.0),1.0),
3478 bounds.x1,bounds.y1);
3479 (void) SetImageArtifact(image,key,geometry);
3480 (void) GetNextToken(q,&q,extent,token);
3483 if (LocaleCompare(
"graphic-context",token) == 0)
3486 graphic_context=(
DrawInfo **) ResizeQuantumMemory(
3487 graphic_context,(
size_t) (n+1),
sizeof(*graphic_context));
3488 if (graphic_context == (
DrawInfo **) NULL)
3490 (void) ThrowMagickException(exception,GetMagickModule(),
3491 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
3495 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,
3496 graphic_context[n-1]);
3499 (void) GetNextToken(q,&q,extent,token);
3500 (void) CloneString(&graphic_context[n]->
id,token);
3504 if (LocaleCompare(
"mask",token) == 0)
3506 (void) GetNextToken(q,&q,extent,token);
3509 if (LocaleCompare(
"pattern",token) == 0)
3512 key[2*MagickPathExtent],
3513 name[MagickPathExtent];
3518 (void) GetNextToken(q,&q,extent,token);
3519 (void) CopyMagickString(name,token,MagickPathExtent);
3520 (void) GetNextToken(q,&q,extent,token);
3521 region.x=CastDoubleToLong(ceil(GetDrawValue(token,
3523 if (token == next_token)
3524 ThrowPointExpectedException(token,exception);
3525 (void) GetNextToken(q,&q,extent,token);
3527 (void) GetNextToken(q,&q,extent,token);
3528 region.y=CastDoubleToLong(ceil(GetDrawValue(token,
3530 if (token == next_token)
3531 ThrowPointExpectedException(token,exception);
3532 (void) GetNextToken(q,&q,extent,token);
3534 (void) GetNextToken(q,&q,extent,token);
3535 region.width=CastDoubleToUnsigned(floor(GetDrawValue(
3536 token,&next_token)+0.5));
3537 if (token == next_token)
3538 ThrowPointExpectedException(token,exception);
3539 (void) GetNextToken(q,&q,extent,token);
3541 (void) GetNextToken(q,&q,extent,token);
3542 region.height=CastDoubleToUnsigned(GetDrawValue(token,
3544 if (token == next_token)
3545 ThrowPointExpectedException(token,exception);
3546 for (p=q; *q !=
'\0'; )
3548 if (GetNextToken(q,&q,extent,token) < 1)
3550 if (LocaleCompare(token,
"pop") != 0)
3552 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3553 if (LocaleCompare(token,
"pattern") != 0)
3557 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3562 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3563 (void) FormatLocaleString(key,MagickPathExtent,
"%s",name);
3564 (void) SetImageArtifact(image,key,token);
3565 (void) FormatLocaleString(key,MagickPathExtent,
"%s-geometry",
3567 (void) FormatLocaleString(geometry,MagickPathExtent,
3568 "%.20gx%.20g%+.20g%+.20g",(
double) region.width,(double)
3569 region.height,(
double) region.x,(double) region.y);
3570 (void) SetImageArtifact(image,key,geometry);
3571 (void) GetNextToken(q,&q,extent,token);
3574 if (LocaleCompare(
"symbol",token) == 0)
3577 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3590 if (LocaleCompare(
"rectangle",keyword) == 0)
3592 primitive_type=RectanglePrimitive;
3595 if (LocaleCompare(
"rotate",keyword) == 0)
3597 (void) GetNextToken(q,&q,extent,token);
3598 angle=GetDrawValue(token,&next_token);
3599 if (token == next_token)
3600 ThrowPointExpectedException(token,exception);
3601 affine.sx=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3602 affine.rx=sin(DegreesToRadians(fmod((
double) angle,360.0)));
3603 affine.ry=(-sin(DegreesToRadians(fmod((
double) angle,360.0))));
3604 affine.sy=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3607 if (LocaleCompare(
"roundRectangle",keyword) == 0)
3609 primitive_type=RoundRectanglePrimitive;
3618 if (LocaleCompare(
"scale",keyword) == 0)
3620 (void) GetNextToken(q,&q,extent,token);
3621 affine.sx=GetDrawValue(token,&next_token);
3622 if (token == next_token)
3623 ThrowPointExpectedException(token,exception);
3624 (void) GetNextToken(q,&q,extent,token);
3626 (void) GetNextToken(q,&q,extent,token);
3627 affine.sy=GetDrawValue(token,&next_token);
3628 if (token == next_token)
3629 ThrowPointExpectedException(token,exception);
3632 if (LocaleCompare(
"skewX",keyword) == 0)
3634 (void) GetNextToken(q,&q,extent,token);
3635 angle=GetDrawValue(token,&next_token);
3636 if (token == next_token)
3637 ThrowPointExpectedException(token,exception);
3638 affine.ry=sin(DegreesToRadians(angle));
3641 if (LocaleCompare(
"skewY",keyword) == 0)
3643 (void) GetNextToken(q,&q,extent,token);
3644 angle=GetDrawValue(token,&next_token);
3645 if (token == next_token)
3646 ThrowPointExpectedException(token,exception);
3647 affine.rx=(-tan(DegreesToRadians(angle)/2.0));
3650 if (LocaleCompare(
"stop-color",keyword) == 0)
3656 if (number_stops == 1)
3657 stops=(
StopInfo *) AcquireQuantumMemory(2,
sizeof(*stops));
3659 if (number_stops > 2)
3660 stops=(
StopInfo *) ResizeQuantumMemory(stops,number_stops,
3664 (void) ThrowMagickException(exception,GetMagickModule(),
3665 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
3669 (void) GetNextToken(q,&q,extent,token);
3670 status&=(MagickStatusType) QueryColorCompliance(token,AllCompliance,
3671 &stop_color,exception);
3672 stops[number_stops-1].color=stop_color;
3673 (void) GetNextToken(q,&q,extent,token);
3674 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3675 stops[number_stops-1].offset=factor*GetDrawValue(token,
3677 if (token == next_token)
3678 ThrowPointExpectedException(token,exception);
3681 if (LocaleCompare(
"stroke",keyword) == 0)
3686 (void) GetNextToken(q,&q,extent,token);
3687 if (graphic_context[n]->clip_path != MagickFalse)
3689 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
3690 if (mvg_class != (
const char *) NULL)
3692 (void) DrawPatternPath(image,draw_info,mvg_class,
3693 &graphic_context[n]->stroke_pattern,exception);
3696 (void) FormatLocaleString(pattern,MagickPathExtent,
"%s",token);
3697 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
3699 (void) DrawPatternPath(image,draw_info,token,
3700 &graphic_context[n]->stroke_pattern,exception);
3703 status&=(MagickStatusType) QueryColorCompliance(token,AllCompliance,
3704 &graphic_context[n]->stroke,exception);
3705 if (graphic_context[n]->stroke_alpha != (
double) OpaqueAlpha)
3706 graphic_context[n]->stroke.alpha=
3707 graphic_context[n]->stroke_alpha;
3710 if (LocaleCompare(
"stroke-antialias",keyword) == 0)
3712 (void) GetNextToken(q,&q,extent,token);
3713 graphic_context[n]->stroke_antialias=StringToLong(token) != 0 ?
3714 MagickTrue : MagickFalse;
3717 if (LocaleCompare(
"stroke-dasharray",keyword) == 0)
3719 if (graphic_context[n]->dash_pattern != (
double *) NULL)
3720 graphic_context[n]->dash_pattern=(
double *)
3721 RelinquishMagickMemory(graphic_context[n]->dash_pattern);
3722 if (IsPoint(q) != MagickFalse)
3728 (void) GetNextToken(r,&r,extent,token);
3730 (void) GetNextToken(r,&r,extent,token);
3731 for (x=0; IsPoint(token) != MagickFalse; x++)
3733 (void) GetNextToken(r,&r,extent,token);
3735 (void) GetNextToken(r,&r,extent,token);
3737 graphic_context[n]->dash_pattern=(
double *)
3738 AcquireQuantumMemory((
size_t) (2*x+2),
3739 sizeof(*graphic_context[n]->dash_pattern));
3740 if (graphic_context[n]->dash_pattern == (
double *) NULL)
3742 (void) ThrowMagickException(exception,GetMagickModule(),
3743 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
3748 (void) memset(graphic_context[n]->dash_pattern,0,(
size_t)
3749 (2*x+2)*
sizeof(*graphic_context[n]->dash_pattern));
3750 for (j=0; j < x; j++)
3752 (void) GetNextToken(q,&q,extent,token);
3754 (void) GetNextToken(q,&q,extent,token);
3755 graphic_context[n]->dash_pattern[j]=GetDrawValue(token,
3757 if (token == next_token)
3758 ThrowPointExpectedException(token,exception);
3759 if (graphic_context[n]->dash_pattern[j] <= 0.0)
3762 if ((x & 0x01) != 0)
3763 for ( ; j < (2*x); j++)
3764 graphic_context[n]->dash_pattern[j]=
3765 graphic_context[n]->dash_pattern[j-x];
3766 graphic_context[n]->dash_pattern[j]=0.0;
3769 (void) GetNextToken(q,&q,extent,token);
3772 if (LocaleCompare(
"stroke-dashoffset",keyword) == 0)
3774 (void) GetNextToken(q,&q,extent,token);
3775 graphic_context[n]->dash_offset=GetDrawValue(token,&next_token);
3776 if (token == next_token)
3777 ThrowPointExpectedException(token,exception);
3780 if (LocaleCompare(
"stroke-linecap",keyword) == 0)
3785 (void) GetNextToken(q,&q,extent,token);
3786 linecap=ParseCommandOption(MagickLineCapOptions,MagickFalse,token);
3792 graphic_context[n]->linecap=(LineCap) linecap;
3795 if (LocaleCompare(
"stroke-linejoin",keyword) == 0)
3800 (void) GetNextToken(q,&q,extent,token);
3801 linejoin=ParseCommandOption(MagickLineJoinOptions,MagickFalse,
3808 graphic_context[n]->linejoin=(LineJoin) linejoin;
3811 if (LocaleCompare(
"stroke-miterlimit",keyword) == 0)
3813 (void) GetNextToken(q,&q,extent,token);
3814 graphic_context[n]->miterlimit=StringToUnsignedLong(token);
3817 if (LocaleCompare(
"stroke-opacity",keyword) == 0)
3822 (void) GetNextToken(q,&q,extent,token);
3823 if (graphic_context[n]->clip_path != MagickFalse)
3825 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3826 opacity=MagickMin(MagickMax(factor*GetDrawValue(token,&next_token),
3828 if (token == next_token)
3829 ThrowPointExpectedException(token,exception);
3830 if (graphic_context[n]->compliance == SVGCompliance)
3831 graphic_context[n]->stroke_alpha*=opacity;
3833 graphic_context[n]->stroke_alpha=(double) QuantumRange*opacity;
3834 if (graphic_context[n]->stroke.alpha != (
double) TransparentAlpha)
3835 graphic_context[n]->stroke.alpha=graphic_context[n]->stroke_alpha;
3837 graphic_context[n]->stroke.alpha=(MagickRealType)
3838 ClampToQuantum((
double) QuantumRange*opacity);
3839 graphic_context[n]->stroke.alpha_trait=BlendPixelTrait;
3842 if (LocaleCompare(
"stroke-width",keyword) == 0)
3844 (void) GetNextToken(q,&q,extent,token);
3845 if (graphic_context[n]->clip_path != MagickFalse)
3847 graphic_context[n]->stroke_width=GetDrawValue(token,&next_token);
3848 if ((token == next_token) ||
3849 (graphic_context[n]->stroke_width < 0.0))
3850 ThrowPointExpectedException(token,exception);
3859 if (LocaleCompare(
"text",keyword) == 0)
3861 primitive_type=TextPrimitive;
3865 if (LocaleCompare(
"text-align",keyword) == 0)
3870 (void) GetNextToken(q,&q,extent,token);
3871 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3877 graphic_context[n]->align=(AlignType) align;
3880 if (LocaleCompare(
"text-anchor",keyword) == 0)
3885 (void) GetNextToken(q,&q,extent,token);
3886 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3892 graphic_context[n]->align=(AlignType) align;
3895 if (LocaleCompare(
"text-antialias",keyword) == 0)
3897 (void) GetNextToken(q,&q,extent,token);
3898 graphic_context[n]->text_antialias=StringToLong(token) != 0 ?
3899 MagickTrue : MagickFalse;
3902 if (LocaleCompare(
"text-undercolor",keyword) == 0)
3904 (void) GetNextToken(q,&q,extent,token);
3905 status&=(MagickStatusType) QueryColorCompliance(token,AllCompliance,
3906 &graphic_context[n]->undercolor,exception);
3909 if (LocaleCompare(
"translate",keyword) == 0)
3911 (void) GetNextToken(q,&q,extent,token);
3912 affine.tx=GetDrawValue(token,&next_token);
3913 if (token == next_token)
3914 ThrowPointExpectedException(token,exception);
3915 (void) GetNextToken(q,&q,extent,token);
3917 (void) GetNextToken(q,&q,extent,token);
3918 affine.ty=GetDrawValue(token,&next_token);
3919 if (token == next_token)
3920 ThrowPointExpectedException(token,exception);
3930 if (LocaleCompare(
"use",keyword) == 0)
3938 (void) GetNextToken(q,&q,extent,token);
3939 use=(
const char *) GetValueFromSplayTree(macros,token);
3940 if (use != (
const char *) NULL)
3942 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3943 (void) CloneString(&clone_info->primitive,use);
3944 status=RenderMVGContent(image,clone_info,depth+1,exception);
3945 clone_info=DestroyDrawInfo(clone_info);
3955 if (LocaleCompare(
"viewbox",keyword) == 0)
3957 (void) GetNextToken(q,&q,extent,token);
3958 graphic_context[n]->viewbox.x=CastDoubleToLong(ceil(
3959 GetDrawValue(token,&next_token)-0.5));
3960 if (token == next_token)
3961 ThrowPointExpectedException(token,exception);
3962 (void) GetNextToken(q,&q,extent,token);
3964 (void) GetNextToken(q,&q,extent,token);
3965 graphic_context[n]->viewbox.y=CastDoubleToLong(
3966 ceil(GetDrawValue(token,&next_token)-0.5));
3967 if (token == next_token)
3968 ThrowPointExpectedException(token,exception);
3969 (void) GetNextToken(q,&q,extent,token);
3971 (void) GetNextToken(q,&q,extent,token);
3972 graphic_context[n]->viewbox.width=CastDoubleToUnsigned(
3973 floor(GetDrawValue(token,&next_token)+0.5));
3974 if (token == next_token)
3975 ThrowPointExpectedException(token,exception);
3976 (void) GetNextToken(q,&q,extent,token);
3978 (void) GetNextToken(q,&q,extent,token);
3979 graphic_context[n]->viewbox.height=(size_t) CastDoubleToUnsigned(
3980 floor(GetDrawValue(token,&next_token)+0.5));
3981 if (token == next_token)
3982 ThrowPointExpectedException(token,exception);
3991 if (LocaleCompare(
"word-spacing",keyword) == 0)
3993 (void) GetNextToken(q,&q,extent,token);
3994 graphic_context[n]->interword_spacing=GetDrawValue(token,
3996 if (token == next_token)
3997 ThrowPointExpectedException(token,exception);
4009 if (status == MagickFalse)
4011 if ((fabs(affine.sx-1.0) >= MagickEpsilon) ||
4012 (fabs(affine.rx) >= MagickEpsilon) || (fabs(affine.ry) >= MagickEpsilon) ||
4013 (fabs(affine.sy-1.0) >= MagickEpsilon) ||
4014 (fabs(affine.tx) >= MagickEpsilon) || (fabs(affine.ty) >= MagickEpsilon))
4016 graphic_context[n]->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
4017 graphic_context[n]->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
4018 graphic_context[n]->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
4019 graphic_context[n]->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
4020 graphic_context[n]->affine.tx=current.sx*affine.tx+current.ry*affine.ty+
4022 graphic_context[n]->affine.ty=current.rx*affine.tx+current.sy*affine.ty+
4025 if (primitive_type == UndefinedPrimitive)
4029 if (number_stops > 1)
4034 type=LinearGradient;
4035 if (draw_info->gradient.type == RadialGradient)
4036 type=RadialGradient;
4037 (void) GradientImage(image,type,PadSpread,stops,number_stops,
4040 if (number_stops > 0)
4041 stops=(
StopInfo *) RelinquishMagickMemory(stops);
4043 if ((draw_info->debug != MagickFalse) && (q > p))
4044 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int)
4051 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4052 if (primitive_info[i].text != (
char *) NULL)
4053 primitive_info[i].text=DestroyString(primitive_info[i].text);
4057 primitive_info[0].point.x=0.0;
4058 primitive_info[0].point.y=0.0;
4059 primitive_info[0].coordinates=0;
4060 primitive_info[0].method=FloodfillMethod;
4061 primitive_info[0].closed_subpath=MagickFalse;
4062 for (x=0; *q !=
'\0'; x++)
4067 if (IsPoint(q) == MagickFalse)
4069 (void) GetNextToken(q,&q,extent,token);
4070 point.x=GetDrawValue(token,&next_token);
4071 if (token == next_token)
4072 ThrowPointExpectedException(token,exception);
4073 (void) GetNextToken(q,&q,extent,token);
4075 (void) GetNextToken(q,&q,extent,token);
4076 point.y=GetDrawValue(token,&next_token);
4077 if (token == next_token)
4078 ThrowPointExpectedException(token,exception);
4079 (void) GetNextToken(q,(
const char **) NULL,extent,token);
4081 (void) GetNextToken(q,&q,extent,token);
4082 primitive_info[i].primitive=primitive_type;
4083 primitive_info[i].point=point;
4084 primitive_info[i].coordinates=0;
4085 primitive_info[i].method=FloodfillMethod;
4086 primitive_info[i].closed_subpath=MagickFalse;
4089 if (i < (ssize_t) number_points)
4091 status&=(MagickStatusType) CheckPrimitiveExtent(&mvg_info,(
double)
4093 primitive_info=(*mvg_info.primitive_info);
4095 if (status == MagickFalse)
4097 if (primitive_info[j].text != (
char *) NULL)
4098 primitive_info[j].text=DestroyString(primitive_info[j].text);
4099 primitive_info[j].primitive=primitive_type;
4100 primitive_info[j].coordinates=(size_t) x;
4101 primitive_info[j].method=FloodfillMethod;
4102 primitive_info[j].closed_subpath=MagickFalse;
4106 bounds.x1=primitive_info[j].point.x;
4107 bounds.y1=primitive_info[j].point.y;
4108 bounds.x2=primitive_info[j].point.x;
4109 bounds.y2=primitive_info[j].point.y;
4110 for (k=1; k < (ssize_t) primitive_info[j].coordinates; k++)
4112 point=primitive_info[j+k].point;
4113 if (point.x < bounds.x1)
4115 if (point.y < bounds.y1)
4117 if (point.x > bounds.x2)
4119 if (point.y > bounds.y2)
4125 coordinates=(double) primitive_info[j].coordinates;
4126 switch (primitive_type)
4128 case RectanglePrimitive:
4133 case RoundRectanglePrimitive:
4140 alpha=bounds.x2-bounds.x1;
4141 beta=bounds.y2-bounds.y1;
4142 radius=hypot(alpha,beta);
4144 coordinates+=2.0*((size_t) ceil((
double) MagickPI*radius))+6.0*
4145 BezierQuantum+360.0;
4148 case BezierPrimitive:
4150 coordinates=(BezierQuantum*(double) primitive_info[j].coordinates);
4159 (void) GetNextToken(q,&q,extent,token);
4162 for (s=token; *s !=
'\0'; s=t)
4167 value=GetDrawValue(s,&t);
4176 for (s=token; *s !=
'\0'; s++)
4177 if (strspn(s,
"AaCcQqSsTt") != 0)
4178 coordinates+=(20.0*BezierQuantum)+360.0;
4184 if (status == MagickFalse)
4186 if (((
size_t) (i+coordinates)) >= number_points)
4191 number_points+=coordinates+1;
4192 if (number_points < (
size_t) coordinates)
4194 (void) ThrowMagickException(exception,GetMagickModule(),
4195 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
4200 status&=(MagickStatusType) CheckPrimitiveExtent(&mvg_info,(
double)
4202 primitive_info=(*mvg_info.primitive_info);
4204 status&=(MagickStatusType) CheckPrimitiveExtent(&mvg_info,
4205 PrimitiveExtentPad);
4206 primitive_info=(*mvg_info.primitive_info);
4207 if (status == MagickFalse)
4210 switch (primitive_type)
4212 case PointPrimitive:
4215 if (primitive_info[j].coordinates != 1)
4220 status&=(MagickStatusType) TracePoint(primitive_info+j,
4221 primitive_info[j].point);
4222 primitive_info=(*mvg_info.primitive_info);
4223 i=j+(ssize_t) primitive_info[j].coordinates;
4228 if (primitive_info[j].coordinates != 2)
4233 status&=(MagickStatusType) TraceLine(primitive_info+j,
4234 primitive_info[j].point,primitive_info[j+1].point);
4235 primitive_info=(*mvg_info.primitive_info);
4236 i=j+(ssize_t) primitive_info[j].coordinates;
4239 case RectanglePrimitive:
4241 if (primitive_info[j].coordinates != 2)
4246 status&=(MagickStatusType) TraceRectangle(primitive_info+j,
4247 primitive_info[j].point,primitive_info[j+1].point);
4248 primitive_info=(*mvg_info.primitive_info);
4249 i=j+(ssize_t) primitive_info[j].coordinates;
4252 case RoundRectanglePrimitive:
4254 if (primitive_info[j].coordinates != 3)
4259 if ((primitive_info[j+2].point.x < 0.0) ||
4260 (primitive_info[j+2].point.y < 0.0))
4265 if ((primitive_info[j+1].point.x-primitive_info[j].point.x) < 0.0)
4270 if ((primitive_info[j+1].point.y-primitive_info[j].point.y) < 0.0)
4275 status&=(MagickStatusType) TraceRoundRectangle(&mvg_info,
4276 primitive_info[j].point,primitive_info[j+1].point,
4277 primitive_info[j+2].point);
4278 primitive_info=(*mvg_info.primitive_info);
4279 i=j+(ssize_t) primitive_info[j].coordinates;
4284 if (primitive_info[j].coordinates != 3)
4289 status&=(MagickStatusType) TraceArc(&mvg_info,primitive_info[j].point,
4290 primitive_info[j+1].point,primitive_info[j+2].point);
4291 primitive_info=(*mvg_info.primitive_info);
4292 i=j+(ssize_t) primitive_info[j].coordinates;
4295 case EllipsePrimitive:
4297 if (primitive_info[j].coordinates != 3)
4302 if ((primitive_info[j+1].point.x < 0.0) ||
4303 (primitive_info[j+1].point.y < 0.0))
4308 status&=(MagickStatusType) TraceEllipse(&mvg_info,
4309 primitive_info[j].point,primitive_info[j+1].point,
4310 primitive_info[j+2].point);
4311 primitive_info=(*mvg_info.primitive_info);
4312 i=j+(ssize_t) primitive_info[j].coordinates;
4315 case CirclePrimitive:
4317 if (primitive_info[j].coordinates != 2)
4322 status&=(MagickStatusType) TraceCircle(&mvg_info,
4323 primitive_info[j].point,primitive_info[j+1].point);
4324 primitive_info=(*mvg_info.primitive_info);
4325 i=j+(ssize_t) primitive_info[j].coordinates;
4328 case PolylinePrimitive:
4330 if (primitive_info[j].coordinates < 1)
4337 case PolygonPrimitive:
4339 if (primitive_info[j].coordinates < 3)
4344 primitive_info[i]=primitive_info[j];
4345 primitive_info[i].coordinates=0;
4346 primitive_info[j].coordinates++;
4347 primitive_info[j].closed_subpath=MagickTrue;
4351 case BezierPrimitive:
4353 if (primitive_info[j].coordinates < 3)
4358 status&=(MagickStatusType) TraceBezier(&mvg_info,
4359 primitive_info[j].coordinates);
4360 primitive_info=(*mvg_info.primitive_info);
4361 i=j+(ssize_t) primitive_info[j].coordinates;
4366 coordinates=(double) TracePath(&mvg_info,token,exception);
4367 primitive_info=(*mvg_info.primitive_info);
4368 if (coordinates < 0.0)
4373 i=(ssize_t) (j+coordinates);
4376 case AlphaPrimitive:
4377 case ColorPrimitive:
4382 if (primitive_info[j].coordinates != 1)
4387 (void) GetNextToken(q,&q,extent,token);
4388 method=ParseCommandOption(MagickMethodOptions,MagickFalse,token);
4394 primitive_info[j].method=(PaintMethod) method;
4399 if (primitive_info[j].coordinates != 1)
4405 (void) GetNextToken(q,&q,extent,token);
4406 (void) CloneString(&primitive_info[j].text,token);
4410 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
4411 if ((fabs(mvg_info.point.x-primitive_info->point.x) < MagickEpsilon) &&
4412 (fabs(mvg_info.point.y-primitive_info->point.y) < MagickEpsilon))
4414 mvg_info.point=primitive_info->point;
4415 primitive_info->point.x+=cursor;
4419 mvg_info.point=primitive_info->point;
4422 clone_info->render=MagickFalse;
4423 clone_info->text=AcquireString(token);
4424 status&=(MagickStatusType) GetTypeMetrics(image,clone_info,
4425 &metrics,exception);
4426 clone_info=DestroyDrawInfo(clone_info);
4427 cursor+=metrics.width;
4428 if (graphic_context[n]->compliance != SVGCompliance)
4432 case ImagePrimitive:
4434 if (primitive_info[j].coordinates != 2)
4439 (void) GetNextToken(q,&q,extent,token);
4440 (void) CloneString(&primitive_info[j].text,token);
4447 primitive_info[i].primitive=UndefinedPrimitive;
4448 if ((draw_info->debug != MagickFalse) && (q > p))
4449 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int) (q-p),p);
4453 status&=(MagickStatusType) CheckPrimitiveExtent(&mvg_info,ExpandAffine(
4454 &graphic_context[n]->affine));
4455 primitive_info=(*mvg_info.primitive_info);
4458 status&=(MagickStatusType) CheckPrimitiveExtent(&mvg_info,(
double)
4459 graphic_context[n]->stroke_width);
4460 primitive_info=(*mvg_info.primitive_info);
4468 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4470 point=primitive_info[i].point;
4471 primitive_info[i].point.x=graphic_context[n]->affine.sx*point.x+
4472 graphic_context[n]->affine.ry*point.y+graphic_context[n]->affine.tx;
4473 primitive_info[i].point.y=graphic_context[n]->affine.rx*point.x+
4474 graphic_context[n]->affine.sy*point.y+graphic_context[n]->affine.ty;
4475 point=primitive_info[i].point;
4476 if (point.x < graphic_context[n]->bounds.x1)
4477 graphic_context[n]->bounds.x1=point.x;
4478 if (point.y < graphic_context[n]->bounds.y1)
4479 graphic_context[n]->bounds.y1=point.y;
4480 if (point.x > graphic_context[n]->bounds.x2)
4481 graphic_context[n]->bounds.x2=point.x;
4482 if (point.y > graphic_context[n]->bounds.y2)
4483 graphic_context[n]->bounds.y2=point.y;
4484 if (primitive_info[i].primitive == ImagePrimitive)
4486 if (i >= (ssize_t) number_points)
4487 ThrowFatalException(ResourceLimitFatalError,
"MemoryAllocationFailed");
4489 if (graphic_context[n]->render != MagickFalse)
4491 if ((n != 0) && (graphic_context[n]->compliance != SVGCompliance) &&
4492 (graphic_context[n]->clip_mask != (
char *) NULL) &&
4493 (LocaleCompare(graphic_context[n]->clip_mask,
4494 graphic_context[n-1]->clip_mask) != 0))
4499 clip_path=(
const char *) GetValueFromSplayTree(macros,
4500 graphic_context[n]->clip_mask);
4501 if (clip_path != (
const char *) NULL)
4502 (
void) SetImageArtifact(image,graphic_context[n]->clip_mask,
4504 status&=(MagickStatusType) DrawClipPath(image,graphic_context[n],
4505 graphic_context[n]->clip_mask,exception);
4507 status&=(MagickStatusType) DrawPrimitive(image,graphic_context[n],
4508 primitive_info,exception);
4510 proceed=SetImageProgress(image,RenderImageTag,q-primitive,(MagickSizeType)
4512 if (proceed == MagickFalse)
4517 if (draw_info->debug != MagickFalse)
4518 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end draw-image");
4522 macros=DestroySplayTree(macros);
4523 token=DestroyString(token);
4526 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4527 if (primitive_info[i].text != (
char *) NULL)
4528 primitive_info[i].text=DestroyString(primitive_info[i].text);
4529 primitive_info=(
PrimitiveInfo *) RelinquishMagickMemory(primitive_info);
4531 primitive=DestroyString(primitive);
4533 stops=(
StopInfo *) RelinquishMagickMemory(stops);
4534 for ( ; n >= 0; n--)
4535 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
4536 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
4537 if ((status == MagickFalse) && (exception->severity < ErrorException))
4538 ThrowBinaryException(DrawError,
"NonconformingDrawingPrimitiveDefinition",
4540 return(status != 0 ? MagickTrue : MagickFalse);
4543MagickExport MagickBooleanType DrawImage(
Image *image,
const DrawInfo *draw_info,
4546 return(RenderMVGContent(image,draw_info,0,exception));
4580MagickExport MagickBooleanType DrawPatternPath(
Image *image,
4585 property[MagickPathExtent];
4601 assert(image != (
Image *) NULL);
4602 assert(image->signature == MagickCoreSignature);
4603 assert(draw_info != (
const DrawInfo *) NULL);
4604 assert(name != (
const char *) NULL);
4605 if (IsEventLogging() != MagickFalse)
4606 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4607 (void) FormatLocaleString(property,MagickPathExtent,
"%s",name);
4608 path=GetImageArtifact(image,property);
4609 if (path == (
const char *) NULL)
4610 return(MagickFalse);
4611 (void) FormatLocaleString(property,MagickPathExtent,
"%s-geometry",name);
4612 geometry=GetImageArtifact(image,property);
4613 if (geometry == (
const char *) NULL)
4614 return(MagickFalse);
4615 if ((*pattern) != (
Image *) NULL)
4616 *pattern=DestroyImage(*pattern);
4617 image_info=AcquireImageInfo();
4618 image_info->size=AcquireString(geometry);
4619 *pattern=AcquireImage(image_info,exception);
4620 image_info=DestroyImageInfo(image_info);
4621 (void) QueryColorCompliance(
"#00000000",AllCompliance,
4622 &(*pattern)->background_color,exception);
4623 (void) SetImageBackgroundColor(*pattern,exception);
4624 if (draw_info->debug != MagickFalse)
4625 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
4626 "begin pattern-path %s %s",name,geometry);
4627 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
4628 if (clone_info->fill_pattern != (
Image *) NULL)
4629 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
4630 if (clone_info->stroke_pattern != (
Image *) NULL)
4631 clone_info->stroke_pattern=DestroyImage(clone_info->stroke_pattern);
4632 (void) FormatLocaleString(property,MagickPathExtent,
"%s-type",name);
4633 type=GetImageArtifact(image,property);
4634 if (type != (
const char *) NULL)
4635 clone_info->gradient.type=(GradientType) ParseCommandOption(
4636 MagickGradientOptions,MagickFalse,type);
4637 (void) CloneString(&clone_info->primitive,path);
4638 status=RenderMVGContent(*pattern,clone_info,0,exception);
4639 clone_info=DestroyDrawInfo(clone_info);
4640 if (draw_info->debug != MagickFalse)
4641 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end pattern-path");
4682 for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
4684 polygon_info[i]=DestroyPolygonInfo(polygon_info[i]);
4685 polygon_info=(
PolygonInfo **) RelinquishMagickMemory(polygon_info);
4686 return(polygon_info);
4693 *magick_restrict path_info;
4701 number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
4702 polygon_info=(
PolygonInfo **) AcquireQuantumMemory(number_threads,
4703 sizeof(*polygon_info));
4706 (void) ThrowMagickException(exception,GetMagickModule(),
4707 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4710 (void) memset(polygon_info,0,number_threads*
sizeof(*polygon_info));
4711 path_info=ConvertPrimitiveToPath(primitive_info,exception);
4712 if (path_info == (
PathInfo *) NULL)
4713 return(DestroyPolygonTLS(polygon_info));
4714 polygon_info[0]=ConvertPathToPolygon(path_info,exception);
4717 (void) ThrowMagickException(exception,GetMagickModule(),
4718 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4719 return(DestroyPolygonTLS(polygon_info));
4721 path_info=(
PathInfo *) RelinquishMagickMemory(path_info);
4722 return(polygon_info);
4725static MagickBooleanType ClonePolygonEdgesTLS(
PolygonInfo **polygon_info,
4731 for (i=1; i < (ssize_t) number_threads; i++)
4739 polygon_info[i]=(
PolygonInfo *) AcquireMagickMemory(
4740 sizeof(*polygon_info[i]));
4743 (void) ThrowMagickException(exception,GetMagickModule(),
4744 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4745 return(MagickFalse);
4747 polygon_info[i]->number_edges=0;
4748 edge_info=polygon_info[0]->edges;
4749 polygon_info[i]->edges=(
EdgeInfo *) AcquireQuantumMemory(
4750 polygon_info[0]->number_edges,
sizeof(*edge_info));
4751 if (polygon_info[i]->edges == (
EdgeInfo *) NULL)
4753 (void) ThrowMagickException(exception,GetMagickModule(),
4754 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4755 return(MagickFalse);
4757 (void) memcpy(polygon_info[i]->edges,edge_info,
4758 polygon_info[0]->number_edges*
sizeof(*edge_info));
4759 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4760 polygon_info[i]->edges[j].points=(
PointInfo *) NULL;
4761 polygon_info[i]->number_edges=polygon_info[0]->number_edges;
4762 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4764 edge_info=polygon_info[0]->edges+j;
4765 polygon_info[i]->edges[j].points=(
PointInfo *) AcquireQuantumMemory(
4766 edge_info->number_points,
sizeof(*edge_info));
4767 if (polygon_info[i]->edges[j].points == (
PointInfo *) NULL)
4769 (void) ThrowMagickException(exception,GetMagickModule(),
4770 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4771 return(MagickFalse);
4773 (void) memcpy(polygon_info[i]->edges[j].points,edge_info->points,
4774 edge_info->number_points*
sizeof(*edge_info->points));
4780static size_t DestroyEdge(
PolygonInfo *polygon_info,
const ssize_t edge)
4782 assert(edge < (ssize_t) polygon_info->number_edges);
4783 polygon_info->edges[edge].points=(
PointInfo *) RelinquishMagickMemory(
4784 polygon_info->edges[edge].points);
4785 polygon_info->number_edges--;
4786 if (edge < (ssize_t) polygon_info->number_edges)
4787 (
void) memmove(polygon_info->edges+edge,polygon_info->edges+edge+1,
4788 (polygon_info->number_edges-(
size_t) edge)*
sizeof(*polygon_info->edges));
4789 return(polygon_info->number_edges);
4792static double GetFillAlpha(
PolygonInfo *polygon_info,
const double mid,
4793 const MagickBooleanType fill,
const FillRule fill_rule,
const ssize_t x,
4794 const ssize_t y,
double *stroke_alpha)
4821 p=polygon_info->edges;
4822 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4824 if ((
double) y <= (p->bounds.y1-mid-0.5))
4826 if ((
double) y > (p->bounds.y2+mid+0.5))
4829 (void) DestroyEdge(polygon_info,j--);
4832 if (((
double) x <= (p->bounds.x1-mid-0.5)) ||
4833 ((double) x > (p->bounds.x2+mid+0.5)))
4835 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4836 for ( ; i < (ssize_t) p->number_points; i++)
4838 if ((
double) y <= (p->points[i-1].y-mid-0.5))
4840 if ((
double) y > (p->points[i].y+mid+0.5))
4842 if (p->scanline != (
double) y)
4844 p->scanline=(double) y;
4845 p->highwater=(size_t) i;
4851 delta.x=(q+1)->x-q->x;
4852 delta.y=(q+1)->y-q->y;
4853 beta=delta.x*(x-q->x)+delta.y*(y-q->y);
4859 delta.x=(double) x-q->x;
4860 delta.y=(double) y-q->y;
4861 distance=delta.x*delta.x+delta.y*delta.y;
4865 alpha=delta.x*delta.x+delta.y*delta.y;
4871 delta.x=(double) x-(q+1)->x;
4872 delta.y=(double) y-(q+1)->y;
4873 distance=delta.x*delta.x+delta.y*delta.y;
4880 alpha=PerceptibleReciprocal(alpha);
4881 beta=delta.x*(y-q->y)-delta.y*(x-q->x);
4882 distance=alpha*beta*beta;
4889 if (p->ghostline == MagickFalse)
4892 if ((*stroke_alpha < 1.0) &&
4893 (distance <= ((alpha+0.25)*(alpha+0.25))))
4896 if (distance <= ((alpha+0.25)*(alpha+0.25)))
4901 if (fabs(distance-1.0) >= MagickEpsilon)
4902 beta=sqrt((
double) distance);
4904 if (*stroke_alpha < ((alpha-0.25)*(alpha-0.25)))
4905 *stroke_alpha=(alpha-0.25)*(alpha-0.25);
4909 if ((fill == MagickFalse) || (distance > 1.0) || (subpath_alpha >= 1.0))
4911 if (distance <= 0.0)
4918 if (fabs(beta) < MagickEpsilon)
4921 if (fabs(distance-1.0) >= MagickEpsilon)
4922 beta=sqrt(distance);
4925 if (subpath_alpha < (alpha*alpha))
4926 subpath_alpha=alpha*alpha;
4932 if (fill == MagickFalse)
4934 if (subpath_alpha >= 1.0)
4940 p=polygon_info->edges;
4941 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4943 if ((
double) y <= p->bounds.y1)
4945 if (((
double) y > p->bounds.y2) || ((double) x <= p->bounds.x1))
4947 if ((
double) x > p->bounds.x2)
4949 winding_number+=p->direction != 0 ? 1 : -1;
4952 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4953 for ( ; i < (ssize_t) (p->number_points-1); i++)
4954 if ((
double) y <= p->points[i].y)
4957 if ((((q+1)->x-q->x)*(y-q->y)) <= (((q+1)->y-q->y)*(x-q->x)))
4958 winding_number+=p->direction != 0 ? 1 : -1;
4960 if (fill_rule != NonZeroRule)
4962 if ((MagickAbsoluteValue(winding_number) & 0x01) != 0)
4966 if (MagickAbsoluteValue(winding_number) != 0)
4968 return(subpath_alpha);
4971static MagickBooleanType DrawPolygonPrimitive(
Image *image,
4975 typedef struct _ExtentInfo
5004 **magick_restrict polygon_info;
5016 assert(image != (
Image *) NULL);
5017 assert(image->signature == MagickCoreSignature);
5018 assert(draw_info != (
DrawInfo *) NULL);
5019 assert(draw_info->signature == MagickCoreSignature);
5021 if (IsEventLogging() != MagickFalse)
5022 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
5023 if (primitive_info->coordinates <= 1)
5028 polygon_info=AcquirePolygonTLS(primitive_info,exception);
5030 return(MagickFalse);
5031 if (draw_info->debug != MagickFalse)
5032 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-polygon");
5033 fill=(primitive_info->method == FillToBorderMethod) ||
5034 (primitive_info->method == FloodfillMethod) ? MagickTrue : MagickFalse;
5035 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5036 bounds=polygon_info[0]->edges[0].bounds;
5037 artifact=GetImageArtifact(image,
"draw:render-bounding-rectangles");
5038 if (IsStringTrue(artifact) != MagickFalse)
5039 (void) DrawBoundingRectangles(image,draw_info,polygon_info[0],exception);
5040 for (i=1; i < (ssize_t) polygon_info[0]->number_edges; i++)
5042 p=polygon_info[0]->edges+i;
5043 if (p->bounds.x1 < bounds.x1)
5044 bounds.x1=p->bounds.x1;
5045 if (p->bounds.y1 < bounds.y1)
5046 bounds.y1=p->bounds.y1;
5047 if (p->bounds.x2 > bounds.x2)
5048 bounds.x2=p->bounds.x2;
5049 if (p->bounds.y2 > bounds.y2)
5050 bounds.y2=p->bounds.y2;
5052 bounds.x1-=(mid+1.0);
5053 bounds.y1-=(mid+1.0);
5054 bounds.x2+=(mid+1.0);
5055 bounds.y2+=(mid+1.0);
5056 if ((bounds.x1 >= (
double) image->columns) ||
5057 (bounds.y1 >= (
double) image->rows) ||
5058 (bounds.x2 <= 0.0) || (bounds.y2 <= 0.0))
5060 polygon_info=DestroyPolygonTLS(polygon_info);
5063 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double) image->columns-1.0 ?
5064 (
double) image->columns-1.0 : bounds.x1;
5065 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double) image->rows-1.0 ?
5066 (
double) image->rows-1.0 : bounds.y1;
5067 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double) image->columns-1.0 ?
5068 (
double) image->columns-1.0 : bounds.x2;
5069 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double) image->rows-1.0 ?
5070 (
double) image->rows-1.0 : bounds.y2;
5071 poly_extent.x1=CastDoubleToLong(ceil(bounds.x1-0.5));
5072 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
5073 poly_extent.x2=CastDoubleToLong(floor(bounds.x2+0.5));
5074 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
5075 number_threads=(size_t) GetMagickNumberThreads(image,image,(
size_t)
5076 (poly_extent.y2-poly_extent.y1+1),1);
5077 status=ClonePolygonEdgesTLS(polygon_info,number_threads,exception);
5078 if (status == MagickFalse)
5080 polygon_info=DestroyPolygonTLS(polygon_info);
5083 image_view=AcquireAuthenticCacheView(image,exception);
5084 if ((primitive_info->coordinates == 1) ||
5085 (polygon_info[0]->number_edges == 0))
5090#if defined(MAGICKCORE_OPENMP_SUPPORT)
5091 #pragma omp parallel for schedule(static) shared(status) \
5092 num_threads((int) number_threads)
5094 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5105 if (status == MagickFalse)
5108 q=GetCacheViewAuthenticPixels(image_view,x,y,(
size_t) (poly_extent.x2-
5110 if (q == (Quantum *) NULL)
5115 GetPixelInfo(image,&pixel);
5116 for ( ; x <= poly_extent.x2; x++)
5118 if ((x == CastDoubleToLong(ceil(primitive_info->point.x-0.5))) &&
5119 (y == CastDoubleToLong(ceil(primitive_info->point.y-0.5))))
5121 GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,&pixel,
5123 SetPixelViaPixelInfo(image,&pixel,q);
5125 q+=GetPixelChannels(image);
5127 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5130 image_view=DestroyCacheView(image_view);
5131 polygon_info=DestroyPolygonTLS(polygon_info);
5132 if (draw_info->debug != MagickFalse)
5133 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5134 " end draw-polygon");
5140#if defined(MAGICKCORE_OPENMP_SUPPORT)
5141 #pragma omp parallel for schedule(static) shared(status) \
5142 num_threads((int) number_threads)
5144 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5147 id = GetOpenMPThreadId();
5155 if (status == MagickFalse)
5157 q=GetCacheViewAuthenticPixels(image_view,poly_extent.x1,y,(
size_t)
5158 (poly_extent.x2-poly_extent.x1+1),1,exception);
5159 if (q == (Quantum *) NULL)
5164 for (x=poly_extent.x1; x <= poly_extent.x2; x++)
5177 fill_alpha=GetFillAlpha(polygon_info[
id],mid,fill,draw_info->fill_rule,
5179 if (draw_info->stroke_antialias == MagickFalse)
5181 fill_alpha=fill_alpha >= AntialiasThreshold ? 1.0 : 0.0;
5182 stroke_alpha=stroke_alpha >= AntialiasThreshold ? 1.0 : 0.0;
5184 GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,&fill_color,
5186 CompositePixelOver(image,&fill_color,fill_alpha*fill_color.alpha,q,
5187 (
double) GetPixelAlpha(image,q),q);
5188 GetStrokeColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,&stroke_color,
5190 CompositePixelOver(image,&stroke_color,stroke_alpha*stroke_color.alpha,q,
5191 (
double) GetPixelAlpha(image,q),q);
5192 q+=GetPixelChannels(image);
5194 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5197 image_view=DestroyCacheView(image_view);
5198 polygon_info=DestroyPolygonTLS(polygon_info);
5199 if (draw_info->debug != MagickFalse)
5200 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-polygon");
5233static void LogPrimitiveInfo(
const PrimitiveInfo *primitive_info)
5259 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5260 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5261 switch (primitive_info->primitive)
5263 case AlphaPrimitive:
5265 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5266 "AlphaPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5267 methods[primitive_info->method]);
5270 case ColorPrimitive:
5272 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5273 "ColorPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5274 methods[primitive_info->method]);
5277 case ImagePrimitive:
5279 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5280 "ImagePrimitive %.20g,%.20g",(double) x,(
double) y);
5283 case PointPrimitive:
5285 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5286 "PointPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5287 methods[primitive_info->method]);
5292 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5293 "TextPrimitive %.20g,%.20g",(double) x,(
double) y);
5300 p=primitive_info[0].point;
5303 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
5305 point=primitive_info[i].point;
5306 if (coordinates <= 0)
5308 coordinates=(ssize_t) primitive_info[i].coordinates;
5309 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5310 " begin open (%.20g)",(double) coordinates);
5313 point=primitive_info[i].point;
5314 if ((fabs(q.x-point.x) >= MagickEpsilon) ||
5315 (fabs(q.y-point.y) >= MagickEpsilon))
5316 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5317 " %.20g: %.18g,%.18g",(double) coordinates,point.x,point.y);
5319 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
5320 " %.20g: %g %g (duplicate)",(
double) coordinates,point.x,point.y);
5323 if (coordinates > 0)
5325 if ((fabs(p.x-point.x) >= MagickEpsilon) ||
5326 (fabs(p.y-point.y) >= MagickEpsilon))
5327 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end last (%.20g)",
5328 (double) coordinates);
5330 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end open (%.20g)",
5331 (
double) coordinates);
5335MagickExport MagickBooleanType DrawPrimitive(
Image *image,
5352 if (draw_info->debug != MagickFalse)
5354 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5355 " begin draw-primitive");
5356 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5357 " affine: %g,%g,%g,%g,%g,%g",draw_info->affine.sx,
5358 draw_info->affine.rx,draw_info->affine.ry,draw_info->affine.sy,
5359 draw_info->affine.tx,draw_info->affine.ty);
5362 if ((IsGrayColorspace(image->colorspace) != MagickFalse) &&
5363 ((IsPixelInfoGray(&draw_info->fill) == MagickFalse) ||
5364 (IsPixelInfoGray(&draw_info->stroke) == MagickFalse)))
5365 status&=(MagickStatusType) SetImageColorspace(image,sRGBColorspace,
5367 if (draw_info->compliance == SVGCompliance)
5369 status&=(MagickStatusType) SetImageMask(image,WritePixelMask,
5370 draw_info->clipping_mask,exception);
5371 status&=(MagickStatusType) SetImageMask(image,CompositePixelMask,
5372 draw_info->composite_mask,exception);
5374 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5375 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5376 image_view=AcquireAuthenticCacheView(image,exception);
5377 switch (primitive_info->primitive)
5379 case AlphaPrimitive:
5381 if ((image->alpha_trait & BlendPixelTrait) == 0)
5382 status&=(MagickStatusType) SetImageAlphaChannel(image,
5383 OpaqueAlphaChannel,exception);
5384 switch (primitive_info->method)
5395 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5396 if (q == (Quantum *) NULL)
5398 GetFillColor(draw_info,x,y,&pixel,exception);
5399 SetPixelAlpha(image,ClampToQuantum(pixel.alpha),q);
5400 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5410 status&=(MagickStatusType) GetOneCacheViewVirtualPixelInfo(image_view,
5411 x,y,&target,exception);
5412 GetPixelInfo(image,&pixel);
5413 for (y=0; y < (ssize_t) image->rows; y++)
5418 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5420 if (q == (Quantum *) NULL)
5422 for (x=0; x < (ssize_t) image->columns; x++)
5424 GetPixelInfoPixel(image,q,&pixel);
5425 if (IsFuzzyEquivalencePixelInfo(&pixel,&target) == MagickFalse)
5427 q+=GetPixelChannels(image);
5430 GetFillColor(draw_info,x,y,&pixel,exception);
5431 SetPixelAlpha(image,ClampToQuantum(pixel.alpha),q);
5432 q+=GetPixelChannels(image);
5434 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5436 if (status == MagickFalse)
5441 case FloodfillMethod:
5442 case FillToBorderMethod:
5450 status&=(MagickStatusType) GetOneVirtualPixelInfo(image,
5451 TileVirtualPixelMethod,x,y,&target,exception);
5452 if (primitive_info->method == FillToBorderMethod)
5454 target.red=(double) draw_info->border_color.red;
5455 target.green=(double) draw_info->border_color.green;
5456 target.blue=(double) draw_info->border_color.blue;
5458 channel_mask=SetImageChannelMask(image,AlphaChannel);
5459 status&=(MagickStatusType) FloodfillPaintImage(image,draw_info,
5460 &target,x,y,primitive_info->method == FloodfillMethod ?
5461 MagickFalse : MagickTrue,exception);
5462 (void) SetImageChannelMask(image,channel_mask);
5470 for (y=0; y < (ssize_t) image->rows; y++)
5475 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5477 if (q == (Quantum *) NULL)
5479 for (x=0; x < (ssize_t) image->columns; x++)
5481 GetFillColor(draw_info,x,y,&pixel,exception);
5482 SetPixelAlpha(image,ClampToQuantum(pixel.alpha),q);
5483 q+=GetPixelChannels(image);
5485 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5487 if (status == MagickFalse)
5495 case ColorPrimitive:
5497 switch (primitive_info->method)
5508 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5509 if (q == (Quantum *) NULL)
5511 GetPixelInfo(image,&pixel);
5512 GetFillColor(draw_info,x,y,&pixel,exception);
5513 SetPixelViaPixelInfo(image,&pixel,q);
5514 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5524 status&=(MagickStatusType) GetOneCacheViewVirtualPixelInfo(image_view,
5525 x,y,&target,exception);
5526 for (y=0; y < (ssize_t) image->rows; y++)
5531 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5533 if (q == (Quantum *) NULL)
5535 for (x=0; x < (ssize_t) image->columns; x++)
5537 GetPixelInfoPixel(image,q,&pixel);
5538 if (IsFuzzyEquivalencePixelInfo(&pixel,&target) == MagickFalse)
5540 q+=GetPixelChannels(image);
5543 GetFillColor(draw_info,x,y,&pixel,exception);
5544 SetPixelViaPixelInfo(image,&pixel,q);
5545 q+=GetPixelChannels(image);
5547 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5549 if (status == MagickFalse)
5554 case FloodfillMethod:
5555 case FillToBorderMethod:
5560 status&=(MagickStatusType) GetOneVirtualPixelInfo(image,
5561 TileVirtualPixelMethod,x,y,&target,exception);
5562 if (primitive_info->method == FillToBorderMethod)
5564 target.red=(double) draw_info->border_color.red;
5565 target.green=(double) draw_info->border_color.green;
5566 target.blue=(double) draw_info->border_color.blue;
5568 status&=(MagickStatusType) FloodfillPaintImage(image,draw_info,
5569 &target,x,y,primitive_info->method == FloodfillMethod ?
5570 MagickFalse : MagickTrue,exception);
5578 GetPixelInfo(image,&pixel);
5579 for (y=0; y < (ssize_t) image->rows; y++)
5584 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5586 if (q == (Quantum *) NULL)
5588 for (x=0; x < (ssize_t) image->columns; x++)
5590 GetFillColor(draw_info,x,y,&pixel,exception);
5591 SetPixelViaPixelInfo(image,&pixel,q);
5592 q+=GetPixelChannels(image);
5594 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5596 if (status == MagickFalse)
5604 case ImagePrimitive:
5610 composite_geometry[MagickPathExtent];
5626 if (primitive_info->text == (
char *) NULL)
5628 clone_info=AcquireImageInfo();
5629 composite_images=(
Image *) NULL;
5630 if (LocaleNCompare(primitive_info->text,
"data:",5) == 0)
5631 composite_images=ReadInlineImage(clone_info,primitive_info->text,
5634 if (*primitive_info->text !=
'\0')
5648 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5650 (void) SetImageInfo(clone_info,1,exception);
5651 magick_info=GetMagickInfo(clone_info->magick,exception);
5652 if ((magick_info != (
const MagickInfo*) NULL) &&
5653 (LocaleCompare(magick_info->magick_module,
"SVG") == 0))
5655 (void) ThrowMagickException(exception,GetMagickModule(),
5656 CorruptImageError,
"ImageTypeNotSupported",
"`%s'",
5657 clone_info->filename);
5658 clone_info=DestroyImageInfo(clone_info);
5661 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5663 if (clone_info->size != (
char *) NULL)
5664 clone_info->size=DestroyString(clone_info->size);
5665 if (clone_info->extract != (
char *) NULL)
5666 clone_info->extract=DestroyString(clone_info->extract);
5667 path_status=GetPathAttributes(clone_info->filename,&attributes);
5668 if (path_status != MagickFalse)
5670 if (S_ISCHR(attributes.st_mode) == 0)
5671 composite_images=ReadImage(clone_info,exception);
5673 (
void) ThrowMagickException(exception,GetMagickModule(),
5674 FileOpenError,
"UnableToOpenFile",
"`%s'",
5675 clone_info->filename);
5678 if ((LocaleCompare(clone_info->magick,
"ftp") != 0) &&
5679 (LocaleCompare(clone_info->magick,
"http") != 0) &&
5680 (LocaleCompare(clone_info->magick,
"https") != 0))
5681 composite_images=ReadImage(clone_info,exception);
5683 (
void) ThrowMagickException(exception,GetMagickModule(),
5684 FileOpenError,
"UnableToOpenFile",
"`%s'",clone_info->filename);
5686 clone_info=DestroyImageInfo(clone_info);
5687 if (composite_images == (
Image *) NULL)
5692 composite_image=RemoveFirstImageFromList(&composite_images);
5693 composite_images=DestroyImageList(composite_images);
5694 (void) SetImageProgressMonitor(composite_image,(MagickProgressMonitor)
5695 NULL,(
void *) NULL);
5696 x1=CastDoubleToLong(ceil(primitive_info[1].point.x-0.5));
5697 y1=CastDoubleToLong(ceil(primitive_info[1].point.y-0.5));
5698 if (((x1 != 0L) && (x1 != (ssize_t) composite_image->columns)) ||
5699 ((y1 != 0L) && (y1 != (ssize_t) composite_image->rows)))
5704 (void) FormatLocaleString(composite_geometry,MagickPathExtent,
5705 "%gx%g!",primitive_info[1].point.x,primitive_info[1].point.y);
5706 composite_image->filter=image->filter;
5707 status&=(MagickStatusType) TransformImage(&composite_image,
5708 (
char *) NULL,composite_geometry,exception);
5710 if (composite_image->alpha_trait == UndefinedPixelTrait)
5711 status&=(MagickStatusType) SetImageAlphaChannel(composite_image,
5712 OpaqueAlphaChannel,exception);
5713 if (draw_info->alpha != OpaqueAlpha)
5714 status&=(MagickStatusType) SetImageAlpha(composite_image,
5715 draw_info->alpha,exception);
5716 SetGeometry(image,&geometry);
5717 image->gravity=draw_info->gravity;
5720 (void) FormatLocaleString(composite_geometry,MagickPathExtent,
5721 "%.20gx%.20g%+.20g%+.20g",(
double) composite_image->columns,(double)
5722 composite_image->rows,(
double) geometry.x,(double) geometry.y);
5723 (void) ParseGravityGeometry(image,composite_geometry,&geometry,exception);
5724 affine=draw_info->affine;
5725 affine.tx=(double) geometry.x;
5726 affine.ty=(double) geometry.y;
5727 composite_image->interpolate=image->interpolate;
5728 if ((draw_info->compose == OverCompositeOp) ||
5729 (draw_info->compose == SrcOverCompositeOp))
5730 status&=(MagickStatusType) DrawAffineImage(image,composite_image,
5733 status&=(MagickStatusType) CompositeImage(image,composite_image,
5734 draw_info->compose,MagickTrue,geometry.x,geometry.y,exception);
5735 composite_image=DestroyImage(composite_image);
5738 case PointPrimitive:
5746 if ((y < 0) || (y >= (ssize_t) image->rows))
5748 if ((x < 0) || (x >= (ssize_t) image->columns))
5750 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5751 if (q == (Quantum *) NULL)
5753 GetFillColor(draw_info,x,y,&fill_color,exception);
5754 CompositePixelOver(image,&fill_color,(
double) fill_color.alpha,q,(
double)
5755 GetPixelAlpha(image,q),q);
5756 status&=(MagickStatusType) SyncCacheViewAuthenticPixels(image_view,
5763 geometry[MagickPathExtent];
5768 if (primitive_info->text == (
char *) NULL)
5770 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5771 (void) CloneString(&clone_info->text,primitive_info->text);
5772 (void) FormatLocaleString(geometry,MagickPathExtent,
"%+f%+f",
5773 primitive_info->point.x,primitive_info->point.y);
5774 (void) CloneString(&clone_info->geometry,geometry);
5775 status&=(MagickStatusType) AnnotateImage(image,clone_info,exception);
5776 clone_info=DestroyDrawInfo(clone_info);
5788 if (IsEventLogging() != MagickFalse)
5789 LogPrimitiveInfo(primitive_info);
5790 scale=ExpandAffine(&draw_info->affine);
5791 if ((draw_info->dash_pattern != (
double *) NULL) &&
5792 (fabs(draw_info->dash_pattern[0]) >= MagickEpsilon) &&
5793 (fabs(scale*draw_info->stroke_width) >= MagickEpsilon) &&
5794 (draw_info->stroke.alpha != (
double) TransparentAlpha))
5799 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5800 clone_info->stroke_width=0.0;
5801 clone_info->stroke.alpha=(MagickRealType) TransparentAlpha;
5802 status&=(MagickStatusType) DrawPolygonPrimitive(image,clone_info,
5803 primitive_info,exception);
5804 clone_info=DestroyDrawInfo(clone_info);
5805 if (status != MagickFalse)
5806 status&=(MagickStatusType) DrawDashPolygon(draw_info,primitive_info,
5810 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5812 ((draw_info->stroke.alpha != (
double) TransparentAlpha) ||
5813 (draw_info->stroke_pattern != (
Image *) NULL)))
5825 closed_path=primitive_info[0].closed_subpath;
5826 i=(ssize_t) primitive_info[0].coordinates;
5827 point_x=fabs(primitive_info[i-1].point.x-primitive_info[0].point.x);
5828 point_y=fabs(primitive_info[i-1].point.y-primitive_info[0].point.y);
5829 if ((point_x < MagickEpsilon) && (point_y < MagickEpsilon))
5830 closed_path=MagickTrue;
5831 if ((((draw_info->linecap == RoundCap) ||
5832 (closed_path != MagickFalse)) &&
5833 (draw_info->linejoin == RoundJoin)) ||
5834 (primitive_info[i].primitive != UndefinedPrimitive))
5836 status&=(MagickStatusType) DrawPolygonPrimitive(image,draw_info,
5837 primitive_info,exception);
5840 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5841 clone_info->stroke_width=0.0;
5842 clone_info->stroke.alpha=(MagickRealType) TransparentAlpha;
5843 status&=(MagickStatusType) DrawPolygonPrimitive(image,clone_info,
5844 primitive_info,exception);
5845 clone_info=DestroyDrawInfo(clone_info);
5846 if (status != MagickFalse)
5847 status&=(MagickStatusType) DrawStrokePolygon(image,draw_info,
5848 primitive_info,exception);
5851 status&=(MagickStatusType) DrawPolygonPrimitive(image,draw_info,
5852 primitive_info,exception);
5856 image_view=DestroyCacheView(image_view);
5857 if (draw_info->compliance == SVGCompliance)
5859 status&=(MagickStatusType) SetImageMask(image,WritePixelMask,
5860 (
Image *) NULL,exception);
5861 status&=(MagickStatusType) SetImageMask(image,CompositePixelMask,
5862 (
Image *) NULL,exception);
5864 if (draw_info->debug != MagickFalse)
5865 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-primitive");
5866 return(status != 0 ? MagickTrue : MagickFalse);
5899static MagickBooleanType DrawRoundLinecap(
Image *image,
5909 for (i=0; i < 4; i++)
5910 linecap[i]=(*primitive_info);
5911 linecap[0].coordinates=4;
5912 linecap[1].point.x+=2.0*MagickEpsilon;
5913 linecap[2].point.x+=2.0*MagickEpsilon;
5914 linecap[2].point.y+=2.0*MagickEpsilon;
5915 linecap[3].point.y+=2.0*MagickEpsilon;
5916 linecap[4].primitive=UndefinedPrimitive;
5917 return(DrawPolygonPrimitive(image,draw_info,linecap,exception));
5920static MagickBooleanType DrawStrokePolygon(
Image *image,
5943 if (draw_info->debug != MagickFalse)
5944 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5945 " begin draw-stroke-polygon");
5946 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5947 clone_info->fill=draw_info->stroke;
5948 if (clone_info->fill_pattern != (
Image *) NULL)
5949 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
5950 if (clone_info->stroke_pattern != (
Image *) NULL)
5951 clone_info->fill_pattern=CloneImage(clone_info->stroke_pattern,0,0,
5952 MagickTrue,exception);
5953 clone_info->stroke.alpha=(MagickRealType) TransparentAlpha;
5954 clone_info->stroke_width=0.0;
5955 clone_info->fill_rule=NonZeroRule;
5957 for (p=primitive_info; p->primitive != UndefinedPrimitive; p+=(ssize_t) p->coordinates)
5959 if (p->coordinates == 1)
5961 stroke_polygon=TraceStrokePolygon(draw_info,p,exception);
5967 status&=(MagickStatusType) DrawPolygonPrimitive(image,clone_info,
5968 stroke_polygon,exception);
5969 stroke_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(stroke_polygon);
5972 q=p+p->coordinates-1;
5973 closed_path=p->closed_subpath;
5974 if ((draw_info->linecap == RoundCap) && (closed_path == MagickFalse))
5976 status&=(MagickStatusType) DrawRoundLinecap(image,draw_info,p,
5978 status&=(MagickStatusType) DrawRoundLinecap(image,draw_info,q,
5982 clone_info=DestroyDrawInfo(clone_info);
5983 if (draw_info->debug != MagickFalse)
5984 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5985 " end draw-stroke-polygon");
5986 return(status != 0 ? MagickTrue : MagickFalse);
6012MagickExport
void GetAffineMatrix(
AffineMatrix *affine_matrix)
6014 if (IsEventLogging() != MagickFalse)
6015 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
6017 (void) memset(affine_matrix,0,
sizeof(*affine_matrix));
6018 affine_matrix->sx=1.0;
6019 affine_matrix->sy=1.0;
6060 assert(draw_info != (
DrawInfo *) NULL);
6061 if (IsEventLogging() != MagickFalse)
6062 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
6063 (void) memset(draw_info,0,
sizeof(*draw_info));
6064 draw_info->image_info=CloneImageInfo(image_info);
6065 GetAffineMatrix(&draw_info->affine);
6066 exception=AcquireExceptionInfo();
6067 (void) QueryColorCompliance(
"#000F",AllCompliance,&draw_info->fill,
6069 (void) QueryColorCompliance(
"#FFF0",AllCompliance,&draw_info->stroke,
6071 draw_info->stroke_antialias=draw_info->image_info->antialias;
6072 draw_info->stroke_width=1.0;
6073 draw_info->fill_rule=EvenOddRule;
6074 draw_info->alpha=OpaqueAlpha;
6075 draw_info->fill_alpha=OpaqueAlpha;
6076 draw_info->stroke_alpha=OpaqueAlpha;
6077 draw_info->linecap=ButtCap;
6078 draw_info->linejoin=MiterJoin;
6079 draw_info->miterlimit=10;
6080 draw_info->decorate=NoDecoration;
6081 draw_info->pointsize=12.0;
6082 draw_info->undercolor.alpha=(MagickRealType) TransparentAlpha;
6083 draw_info->compose=OverCompositeOp;
6084 draw_info->render=MagickTrue;
6085 draw_info->clip_path=MagickFalse;
6086 draw_info->debug=(GetLogEventMask() & (DrawEvent | AnnotateEvent)) != 0 ?
6087 MagickTrue : MagickFalse;
6088 if (draw_info->image_info->font != (
char *) NULL)
6089 draw_info->font=AcquireString(draw_info->image_info->font);
6090 if (draw_info->image_info->density != (
char *) NULL)
6091 draw_info->density=AcquireString(draw_info->image_info->density);
6092 draw_info->text_antialias=draw_info->image_info->antialias;
6093 if (fabs(draw_info->image_info->pointsize) >= MagickEpsilon)
6094 draw_info->pointsize=draw_info->image_info->pointsize;
6095 draw_info->border_color=draw_info->image_info->border_color;
6096 if (draw_info->image_info->server_name != (
char *) NULL)
6097 draw_info->server_name=AcquireString(draw_info->image_info->server_name);
6098 option=GetImageOption(draw_info->image_info,
"direction");
6099 if (option != (
const char *) NULL)
6100 draw_info->direction=(DirectionType) ParseCommandOption(
6101 MagickDirectionOptions,MagickFalse,option);
6103 draw_info->direction=UndefinedDirection;
6104 option=GetImageOption(draw_info->image_info,
"encoding");
6105 if (option != (
const char *) NULL)
6106 (void) CloneString(&draw_info->encoding,option);
6107 option=GetImageOption(draw_info->image_info,
"family");
6108 if (option != (
const char *) NULL)
6109 (void) CloneString(&draw_info->family,option);
6110 option=GetImageOption(draw_info->image_info,
"fill");
6111 if (option != (
const char *) NULL)
6112 (void) QueryColorCompliance(option,AllCompliance,&draw_info->fill,
6114 option=GetImageOption(draw_info->image_info,
"gravity");
6115 if (option != (
const char *) NULL)
6116 draw_info->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
6117 MagickFalse,option);
6118 option=GetImageOption(draw_info->image_info,
"interline-spacing");
6119 if (option != (
const char *) NULL)
6120 draw_info->interline_spacing=GetDrawValue(option,&next_token);
6121 option=GetImageOption(draw_info->image_info,
"interword-spacing");
6122 if (option != (
const char *) NULL)
6123 draw_info->interword_spacing=GetDrawValue(option,&next_token);
6124 option=GetImageOption(draw_info->image_info,
"kerning");
6125 if (option != (
const char *) NULL)
6126 draw_info->kerning=GetDrawValue(option,&next_token);
6127 option=GetImageOption(draw_info->image_info,
"stroke");
6128 if (option != (
const char *) NULL)
6129 (void) QueryColorCompliance(option,AllCompliance,&draw_info->stroke,
6131 option=GetImageOption(draw_info->image_info,
"strokewidth");
6132 if (option != (
const char *) NULL)
6133 draw_info->stroke_width=GetDrawValue(option,&next_token);
6134 option=GetImageOption(draw_info->image_info,
"style");
6135 if (option != (
const char *) NULL)
6136 draw_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
6137 MagickFalse,option);
6138 option=GetImageOption(draw_info->image_info,
"undercolor");
6139 if (option != (
const char *) NULL)
6140 (void) QueryColorCompliance(option,AllCompliance,&draw_info->undercolor,
6142 option=GetImageOption(draw_info->image_info,
"weight");
6143 if (option != (
const char *) NULL)
6148 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,option);
6150 weight=(ssize_t) StringToUnsignedLong(option);
6151 draw_info->weight=(size_t) weight;
6153 option=GetImageOption(draw_info->image_info,
"word-break");
6154 if (option != (
const char *) NULL)
6155 draw_info->word_break=(WordBreakType) ParseCommandOption(
6156 MagickWordBreakOptions,MagickFalse,option);
6157 exception=DestroyExceptionInfo(exception);
6158 draw_info->signature=MagickCoreSignature;
6186static inline double Permutate(
const ssize_t n,
const ssize_t k)
6195 for (i=k+1; i <= n; i++)
6197 for (i=1; i <= (n-k); i++)
6225 center.x=0.5*(end.x+start.x);
6226 center.y=0.5*(end.y+start.y);
6227 radius.x=fabs(center.x-start.x);
6228 radius.y=fabs(center.y-start.y);
6229 return(TraceEllipse(mvg_info,center,radius,degrees));
6232static MagickBooleanType TraceArcPath(
MVGInfo *mvg_info,
const PointInfo start,
6234 const MagickBooleanType large_arc,
const MagickBooleanType sweep)
6271 offset=mvg_info->offset;
6272 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6273 primitive_info->coordinates=0;
6274 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6275 (fabs(start.y-end.y) < MagickEpsilon))
6276 return(TracePoint(primitive_info,end));
6277 radii.x=fabs(arc.x);
6278 radii.y=fabs(arc.y);
6279 if ((radii.x < MagickEpsilon) || (radii.y < MagickEpsilon))
6280 return(TraceLine(primitive_info,start,end));
6281 cosine=cos(DegreesToRadians(fmod((
double) angle,360.0)));
6282 sine=sin(DegreesToRadians(fmod((
double) angle,360.0)));
6283 center.x=(double) (cosine*(end.x-start.x)/2+sine*(end.y-start.y)/2);
6284 center.y=(double) (cosine*(end.y-start.y)/2-sine*(end.x-start.x)/2);
6285 delta=(center.x*center.x)/(radii.x*radii.x)+(center.y*center.y)/
6287 if (delta < MagickEpsilon)
6288 return(TraceLine(primitive_info,start,end));
6291 radii.x*=sqrt((
double) delta);
6292 radii.y*=sqrt((
double) delta);
6294 points[0].x=(double) (cosine*start.x/radii.x+sine*start.y/radii.x);
6295 points[0].y=(double) (cosine*start.y/radii.y-sine*start.x/radii.y);
6296 points[1].x=(double) (cosine*end.x/radii.x+sine*end.y/radii.x);
6297 points[1].y=(double) (cosine*end.y/radii.y-sine*end.x/radii.y);
6298 alpha=points[1].x-points[0].x;
6299 beta=points[1].y-points[0].y;
6300 if (fabs(alpha*alpha+beta*beta) < MagickEpsilon)
6301 return(TraceLine(primitive_info,start,end));
6302 factor=PerceptibleReciprocal(alpha*alpha+beta*beta)-0.25;
6307 factor=sqrt((
double) factor);
6308 if (sweep == large_arc)
6311 center.x=(double) ((points[0].x+points[1].x)/2-factor*beta);
6312 center.y=(double) ((points[0].y+points[1].y)/2+factor*alpha);
6313 alpha=atan2(points[0].y-center.y,points[0].x-center.x);
6314 theta=atan2(points[1].y-center.y,points[1].x-center.x)-alpha;
6315 if ((theta < 0.0) && (sweep != MagickFalse))
6316 theta+=2.0*MagickPI;
6318 if ((theta > 0.0) && (sweep == MagickFalse))
6319 theta-=2.0*MagickPI;
6320 arc_segments=(size_t) CastDoubleToLong(ceil(fabs((
double) (theta/(0.5*
6321 MagickPI+MagickEpsilon)))));
6324 for (i=0; i < (ssize_t) arc_segments; i++)
6326 beta=0.5*((alpha+(i+1)*theta/arc_segments)-(alpha+i*theta/arc_segments));
6327 gamma=(8.0/3.0)*sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))*
6328 sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))/
6329 sin(fmod((
double) beta,DegreesToRadians(360.0)));
6330 points[0].x=(double) (center.x+cos(fmod((
double) (alpha+(
double) i*theta/
6331 arc_segments),DegreesToRadians(360.0)))-gamma*sin(fmod((
double) (alpha+
6332 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6333 points[0].y=(double) (center.y+sin(fmod((
double) (alpha+(
double) i*theta/
6334 arc_segments),DegreesToRadians(360.0)))+gamma*cos(fmod((
double) (alpha+
6335 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6336 points[2].x=(double) (center.x+cos(fmod((
double) (alpha+(double) (i+1)*
6337 theta/arc_segments),DegreesToRadians(360.0))));
6338 points[2].y=(double) (center.y+sin(fmod((
double) (alpha+(double) (i+1)*
6339 theta/arc_segments),DegreesToRadians(360.0))));
6340 points[1].x=(double) (points[2].x+gamma*sin(fmod((
double) (alpha+(double)
6341 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6342 points[1].y=(double) (points[2].y-gamma*cos(fmod((
double) (alpha+(double)
6343 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6344 p->point.x=(p == primitive_info) ? start.x : (p-1)->point.x;
6345 p->point.y=(p == primitive_info) ? start.y : (p-1)->point.y;
6346 (p+1)->point.x=(
double) (cosine*radii.x*points[0].x-sine*radii.y*
6348 (p+1)->point.y=(
double) (sine*radii.x*points[0].x+cosine*radii.y*
6350 (p+2)->point.x=(
double) (cosine*radii.x*points[1].x-sine*radii.y*
6352 (p+2)->point.y=(
double) (sine*radii.x*points[1].x+cosine*radii.y*
6354 (p+3)->point.x=(
double) (cosine*radii.x*points[2].x-sine*radii.y*
6356 (p+3)->point.y=(
double) (sine*radii.x*points[2].x+cosine*radii.y*
6358 if (i == (ssize_t) (arc_segments-1))
6360 status&=(MagickStatusType) TraceBezier(mvg_info,4);
6363 p=(*mvg_info->primitive_info)+mvg_info->offset;
6364 mvg_info->offset+=(ssize_t) p->coordinates;
6365 p+=(ssize_t) p->coordinates;
6368 return(MagickFalse);
6369 mvg_info->offset=offset;
6370 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6371 primitive_info->coordinates=(size_t) (p-primitive_info);
6372 primitive_info->closed_subpath=MagickFalse;
6373 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6375 p->primitive=primitive_info->primitive;
6381static MagickBooleanType TraceBezier(
MVGInfo *mvg_info,
6382 const size_t number_coordinates)
6411 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6412 quantum=number_coordinates;
6413 for (i=0; i < (ssize_t) number_coordinates; i++)
6415 for (j=i+1; j < (ssize_t) number_coordinates; j++)
6417 alpha=fabs(primitive_info[j].point.x-primitive_info[i].point.x);
6418 if (alpha > (
double) MAGICK_SSIZE_MAX)
6420 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6421 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6422 return(MagickFalse);
6424 if (alpha > (
double) quantum)
6425 quantum=(
size_t) alpha;
6426 alpha=fabs(primitive_info[j].point.y-primitive_info[i].point.y);
6427 if (alpha > (
double) MAGICK_SSIZE_MAX)
6429 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6430 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6431 return(MagickFalse);
6433 if (alpha > (
double) quantum)
6434 quantum=(
size_t) alpha;
6437 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6438 quantum=MagickMin(quantum/number_coordinates,BezierQuantum);
6439 coefficients=(
double *) AcquireQuantumMemory(number_coordinates,
6440 sizeof(*coefficients));
6441 points=(
PointInfo *) AcquireQuantumMemory(quantum,number_coordinates*
6443 if ((coefficients == (
double *) NULL) || (points == (
PointInfo *) NULL))
6446 points=(
PointInfo *) RelinquishMagickMemory(points);
6447 if (coefficients != (
double *) NULL)
6448 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6449 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6450 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6451 return(MagickFalse);
6453 control_points=quantum*number_coordinates;
6454 if (CheckPrimitiveExtent(mvg_info,(
double) control_points+1) == MagickFalse)
6456 points=(
PointInfo *) RelinquishMagickMemory(points);
6457 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6458 return(MagickFalse);
6460 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6464 end=primitive_info[number_coordinates-1].point;
6465 for (i=0; i < (ssize_t) number_coordinates; i++)
6466 coefficients[i]=Permutate((ssize_t) number_coordinates-1,i);
6468 for (i=0; i < (ssize_t) control_points; i++)
6473 alpha=pow((
double) (1.0-weight),(
double) number_coordinates-1.0);
6474 for (j=0; j < (ssize_t) number_coordinates; j++)
6476 point.x+=alpha*coefficients[j]*p->point.x;
6477 point.y+=alpha*coefficients[j]*p->point.y;
6478 alpha*=weight/(1.0-weight);
6482 weight+=1.0/control_points;
6488 for (i=0; i < (ssize_t) control_points; i++)
6490 if (TracePoint(p,points[i]) == MagickFalse)
6492 points=(
PointInfo *) RelinquishMagickMemory(points);
6493 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6494 return(MagickFalse);
6496 p+=(ssize_t) p->coordinates;
6498 if (TracePoint(p,end) == MagickFalse)
6500 points=(
PointInfo *) RelinquishMagickMemory(points);
6501 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6502 return(MagickFalse);
6504 p+=(ssize_t) p->coordinates;
6505 primitive_info->coordinates=(size_t) (p-primitive_info);
6506 primitive_info->closed_subpath=MagickFalse;
6507 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6509 p->primitive=primitive_info->primitive;
6512 points=(
PointInfo *) RelinquishMagickMemory(points);
6513 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6517static MagickBooleanType TraceCircle(
MVGInfo *mvg_info,
const PointInfo start,
6529 alpha=end.x-start.x;
6531 radius=hypot((
double) alpha,(
double) beta);
6532 offset.x=(double) radius;
6533 offset.y=(double) radius;
6536 return(TraceEllipse(mvg_info,start,offset,degrees));
6539static MagickBooleanType TraceEllipse(
MVGInfo *mvg_info,
const PointInfo center,
6565 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6566 primitive_info->coordinates=0;
6567 if ((fabs(radii.x) < MagickEpsilon) || (fabs(radii.y) < MagickEpsilon))
6569 delta=2.0*PerceptibleReciprocal(MagickMax(radii.x,radii.y));
6571 if ((delta >= 0.0) && (delta < (MagickPI/8.0)))
6572 step=MagickPI/4.0/(MagickPI*PerceptibleReciprocal(delta)/2.0);
6573 angle.x=DegreesToRadians(arc.x);
6577 angle.y=DegreesToRadians(y);
6578 coordinates=ceil((angle.y-angle.x)/step+1.0);
6579 if (CheckPrimitiveExtent(mvg_info,coordinates+1) == MagickFalse)
6580 return(MagickFalse);
6582 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6583 for (p=primitive_info; angle.x < angle.y; angle.x+=step)
6585 point.x=cos(fmod(angle.x,DegreesToRadians(360.0)))*radii.x+center.x;
6586 point.y=sin(fmod(angle.x,DegreesToRadians(360.0)))*radii.y+center.y;
6587 if (i++ >= (ssize_t) coordinates)
6589 if (TracePoint(p,point) == MagickFalse)
6590 return(MagickFalse);
6591 p+=(ssize_t) p->coordinates;
6593 point.x=cos(fmod(angle.y,DegreesToRadians(360.0)))*radii.x+center.x;
6594 point.y=sin(fmod(angle.y,DegreesToRadians(360.0)))*radii.y+center.y;
6595 if (TracePoint(p,point) == MagickFalse)
6596 return(MagickFalse);
6597 p+=(ssize_t) p->coordinates;
6598 primitive_info->coordinates=(size_t) (p-primitive_info);
6599 primitive_info->closed_subpath=MagickFalse;
6600 x=fabs(primitive_info[0].point.x-
6601 primitive_info[primitive_info->coordinates-1].point.x);
6602 y=fabs(primitive_info[0].point.y-
6603 primitive_info[primitive_info->coordinates-1].point.y);
6604 if ((x < MagickEpsilon) && (y < MagickEpsilon))
6605 primitive_info->closed_subpath=MagickTrue;
6606 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6608 p->primitive=primitive_info->primitive;
6614static MagickBooleanType TraceLine(
PrimitiveInfo *primitive_info,
6617 if (TracePoint(primitive_info,start) == MagickFalse)
6618 return(MagickFalse);
6619 if (TracePoint(primitive_info+1,end) == MagickFalse)
6620 return(MagickFalse);
6621 (primitive_info+1)->primitive=primitive_info->primitive;
6622 primitive_info->coordinates=2;
6623 primitive_info->closed_subpath=MagickFalse;
6627static ssize_t TracePath(
MVGInfo *mvg_info,
const char *path,
6632 token[MagickPathExtent] =
"";
6650 points[4] = { {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0} },
6673 subpath_offset=mvg_info->offset;
6674 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6677 number_coordinates=0;
6679 primitive_type=primitive_info->primitive;
6681 for (p=path; *p !=
'\0'; )
6683 if (status == MagickFalse)
6685 while (isspace((
int) ((
unsigned char) *p)) != 0)
6689 last_attribute=attribute;
6690 attribute=(int) (*p++);
6700 large_arc = MagickFalse,
6701 sweep = MagickFalse;
6711 (void) GetNextToken(p,&p,MagickPathExtent,token);
6713 (void) GetNextToken(p,&p,MagickPathExtent,token);
6714 arc.x=GetDrawValue(token,&next_token);
6715 if (token == next_token)
6716 ThrowPointExpectedException(token,exception);
6717 (void) GetNextToken(p,&p,MagickPathExtent,token);
6719 (void) GetNextToken(p,&p,MagickPathExtent,token);
6720 arc.y=GetDrawValue(token,&next_token);
6721 if (token == next_token)
6722 ThrowPointExpectedException(token,exception);
6723 (void) GetNextToken(p,&p,MagickPathExtent,token);
6725 (void) GetNextToken(p,&p,MagickPathExtent,token);
6726 angle=GetDrawValue(token,&next_token);
6727 if (token == next_token)
6728 ThrowPointExpectedException(token,exception);
6729 (void) GetNextToken(p,&p,MagickPathExtent,token);
6731 (void) GetNextToken(p,&p,MagickPathExtent,token);
6732 large_arc=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6733 (void) GetNextToken(p,&p,MagickPathExtent,token);
6735 (void) GetNextToken(p,&p,MagickPathExtent,token);
6736 sweep=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6738 (void) GetNextToken(p,&p,MagickPathExtent,token);
6739 (void) GetNextToken(p,&p,MagickPathExtent,token);
6741 (void) GetNextToken(p,&p,MagickPathExtent,token);
6742 x=GetDrawValue(token,&next_token);
6743 if (token == next_token)
6744 ThrowPointExpectedException(token,exception);
6745 (void) GetNextToken(p,&p,MagickPathExtent,token);
6747 (void) GetNextToken(p,&p,MagickPathExtent,token);
6748 y=GetDrawValue(token,&next_token);
6749 if (token == next_token)
6750 ThrowPointExpectedException(token,exception);
6751 end.x=(double) (attribute == (
int)
'A' ? x : point.x+x);
6752 end.y=(double) (attribute == (
int)
'A' ? y : point.y+y);
6753 if (TraceArcPath(mvg_info,point,end,arc,angle,large_arc,sweep) == MagickFalse)
6755 q=(*mvg_info->primitive_info)+mvg_info->offset;
6756 mvg_info->offset+=(ssize_t) q->coordinates;
6757 q+=(ssize_t) q->coordinates;
6759 while (isspace((
int) ((
unsigned char) *p)) != 0)
6763 }
while (IsPoint(p) != MagickFalse);
6775 for (i=1; i < 4; i++)
6777 (void) GetNextToken(p,&p,MagickPathExtent,token);
6779 (void) GetNextToken(p,&p,MagickPathExtent,token);
6780 x=GetDrawValue(token,&next_token);
6781 if (token == next_token)
6782 ThrowPointExpectedException(token,exception);
6783 (void) GetNextToken(p,&p,MagickPathExtent,token);
6785 (void) GetNextToken(p,&p,MagickPathExtent,token);
6786 y=GetDrawValue(token,&next_token);
6787 if (token == next_token)
6788 ThrowPointExpectedException(token,exception);
6789 end.x=(double) (attribute == (
int)
'C' ? x : point.x+x);
6790 end.y=(double) (attribute == (
int)
'C' ? y : point.y+y);
6793 for (i=0; i < 4; i++)
6794 (q+i)->point=points[i];
6795 if (TraceBezier(mvg_info,4) == MagickFalse)
6797 q=(*mvg_info->primitive_info)+mvg_info->offset;
6798 mvg_info->offset+=(ssize_t) q->coordinates;
6799 q+=(ssize_t) q->coordinates;
6801 while (isspace((
int) ((
unsigned char) *p)) != 0)
6805 }
while (IsPoint(p) != MagickFalse);
6813 (void) GetNextToken(p,&p,MagickPathExtent,token);
6815 (void) GetNextToken(p,&p,MagickPathExtent,token);
6816 x=GetDrawValue(token,&next_token);
6817 if (token == next_token)
6818 ThrowPointExpectedException(token,exception);
6819 point.x=(double) (attribute == (
int)
'H' ? x: point.x+x);
6820 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6822 q=(*mvg_info->primitive_info)+mvg_info->offset;
6823 if (TracePoint(q,point) == MagickFalse)
6825 mvg_info->offset+=(ssize_t) q->coordinates;
6826 q+=(ssize_t) q->coordinates;
6827 while (isspace((
int) ((
unsigned char) *p)) != 0)
6831 }
while (IsPoint(p) != MagickFalse);
6842 (void) GetNextToken(p,&p,MagickPathExtent,token);
6844 (void) GetNextToken(p,&p,MagickPathExtent,token);
6845 x=GetDrawValue(token,&next_token);
6846 if (token == next_token)
6847 ThrowPointExpectedException(token,exception);
6848 (void) GetNextToken(p,&p,MagickPathExtent,token);
6850 (void) GetNextToken(p,&p,MagickPathExtent,token);
6851 y=GetDrawValue(token,&next_token);
6852 if (token == next_token)
6853 ThrowPointExpectedException(token,exception);
6854 point.x=(double) (attribute == (
int)
'L' ? x : point.x+x);
6855 point.y=(double) (attribute == (
int)
'L' ? y : point.y+y);
6856 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6858 q=(*mvg_info->primitive_info)+mvg_info->offset;
6859 if (TracePoint(q,point) == MagickFalse)
6861 mvg_info->offset+=(ssize_t) q->coordinates;
6862 q+=(ssize_t) q->coordinates;
6863 while (isspace((
int) ((
unsigned char) *p)) != 0)
6867 }
while (IsPoint(p) != MagickFalse);
6876 if (mvg_info->offset != subpath_offset)
6878 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6879 primitive_info->coordinates=(size_t) (q-primitive_info);
6880 number_coordinates+=primitive_info->coordinates;
6882 subpath_offset=mvg_info->offset;
6887 (void) GetNextToken(p,&p,MagickPathExtent,token);
6889 (void) GetNextToken(p,&p,MagickPathExtent,token);
6890 x=GetDrawValue(token,&next_token);
6891 if (token == next_token)
6892 ThrowPointExpectedException(token,exception);
6893 (void) GetNextToken(p,&p,MagickPathExtent,token);
6895 (void) GetNextToken(p,&p,MagickPathExtent,token);
6896 y=GetDrawValue(token,&next_token);
6897 if (token == next_token)
6898 ThrowPointExpectedException(token,exception);
6899 point.x=(double) (attribute == (
int)
'M' ? x : point.x+x);
6900 point.y=(double) (attribute == (
int)
'M' ? y : point.y+y);
6904 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6906 q=(*mvg_info->primitive_info)+mvg_info->offset;
6907 if (TracePoint(q,point) == MagickFalse)
6909 mvg_info->offset+=(ssize_t) q->coordinates;
6910 q+=(ssize_t) q->coordinates;
6911 while (isspace((
int) ((
unsigned char) *p)) != 0)
6915 }
while (IsPoint(p) != MagickFalse);
6927 for (i=1; i < 3; i++)
6929 (void) GetNextToken(p,&p,MagickPathExtent,token);
6931 (void) GetNextToken(p,&p,MagickPathExtent,token);
6932 x=GetDrawValue(token,&next_token);
6933 if (token == next_token)
6934 ThrowPointExpectedException(token,exception);
6935 (void) GetNextToken(p,&p,MagickPathExtent,token);
6937 (void) GetNextToken(p,&p,MagickPathExtent,token);
6938 y=GetDrawValue(token,&next_token);
6939 if (token == next_token)
6940 ThrowPointExpectedException(token,exception);
6943 end.x=(double) (attribute == (
int)
'Q' ? x : point.x+x);
6944 end.y=(double) (attribute == (
int)
'Q' ? y : point.y+y);
6947 for (i=0; i < 3; i++)
6948 (q+i)->point=points[i];
6949 if (TraceBezier(mvg_info,3) == MagickFalse)
6951 q=(*mvg_info->primitive_info)+mvg_info->offset;
6952 mvg_info->offset+=(ssize_t) q->coordinates;
6953 q+=(ssize_t) q->coordinates;
6955 while (isspace((
int) ((
unsigned char) *p)) != 0)
6959 }
while (IsPoint(p) != MagickFalse);
6970 points[0]=points[3];
6971 points[1].x=2.0*points[3].x-points[2].x;
6972 points[1].y=2.0*points[3].y-points[2].y;
6973 for (i=2; i < 4; i++)
6975 (void) GetNextToken(p,&p,MagickPathExtent,token);
6977 (void) GetNextToken(p,&p,MagickPathExtent,token);
6978 x=GetDrawValue(token,&next_token);
6979 if (token == next_token)
6980 ThrowPointExpectedException(token,exception);
6981 (void) GetNextToken(p,&p,MagickPathExtent,token);
6983 (void) GetNextToken(p,&p,MagickPathExtent,token);
6984 y=GetDrawValue(token,&next_token);
6985 if (token == next_token)
6986 ThrowPointExpectedException(token,exception);
6989 end.x=(double) (attribute == (
int)
'S' ? x : point.x+x);
6990 end.y=(double) (attribute == (
int)
'S' ? y : point.y+y);
6993 if (strchr(
"CcSs",last_attribute) == (
char *) NULL)
6998 for (i=0; i < 4; i++)
6999 (q+i)->point=points[i];
7000 if (TraceBezier(mvg_info,4) == MagickFalse)
7002 q=(*mvg_info->primitive_info)+mvg_info->offset;
7003 mvg_info->offset+=(ssize_t) q->coordinates;
7004 q+=(ssize_t) q->coordinates;
7006 last_attribute=attribute;
7007 while (isspace((
int) ((
unsigned char) *p)) != 0)
7011 }
while (IsPoint(p) != MagickFalse);
7022 points[0]=points[2];
7023 points[1].x=2.0*points[2].x-points[1].x;
7024 points[1].y=2.0*points[2].y-points[1].y;
7025 for (i=2; i < 3; i++)
7027 (void) GetNextToken(p,&p,MagickPathExtent,token);
7029 (void) GetNextToken(p,&p,MagickPathExtent,token);
7030 x=GetDrawValue(token,&next_token);
7031 if (token == next_token)
7032 ThrowPointExpectedException(token,exception);
7033 (void) GetNextToken(p,&p,MagickPathExtent,token);
7035 (void) GetNextToken(p,&p,MagickPathExtent,token);
7036 y=GetDrawValue(token,&next_token);
7037 if (token == next_token)
7038 ThrowPointExpectedException(token,exception);
7039 end.x=(double) (attribute == (
int)
'T' ? x : point.x+x);
7040 end.y=(double) (attribute == (
int)
'T' ? y : point.y+y);
7043 if (status == MagickFalse)
7045 if (strchr(
"QqTt",last_attribute) == (
char *) NULL)
7050 for (i=0; i < 3; i++)
7051 (q+i)->point=points[i];
7052 if (TraceBezier(mvg_info,3) == MagickFalse)
7054 q=(*mvg_info->primitive_info)+mvg_info->offset;
7055 mvg_info->offset+=(ssize_t) q->coordinates;
7056 q+=(ssize_t) q->coordinates;
7058 last_attribute=attribute;
7059 while (isspace((
int) ((
unsigned char) *p)) != 0)
7063 }
while (IsPoint(p) != MagickFalse);
7074 (void) GetNextToken(p,&p,MagickPathExtent,token);
7076 (void) GetNextToken(p,&p,MagickPathExtent,token);
7077 y=GetDrawValue(token,&next_token);
7078 if (token == next_token)
7079 ThrowPointExpectedException(token,exception);
7080 point.y=(double) (attribute == (
int)
'V' ? y : point.y+y);
7081 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7083 q=(*mvg_info->primitive_info)+mvg_info->offset;
7084 if (TracePoint(q,point) == MagickFalse)
7086 mvg_info->offset+=(ssize_t) q->coordinates;
7087 q+=(ssize_t) q->coordinates;
7088 while (isspace((
int) ((
unsigned char) *p)) != 0)
7092 }
while (IsPoint(p) != MagickFalse);
7102 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7104 q=(*mvg_info->primitive_info)+mvg_info->offset;
7105 if (TracePoint(q,point) == MagickFalse)
7107 mvg_info->offset+=(ssize_t) q->coordinates;
7108 q+=(ssize_t) q->coordinates;
7109 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
7110 primitive_info->coordinates=(size_t) (q-primitive_info);
7111 primitive_info->closed_subpath=MagickTrue;
7112 number_coordinates+=primitive_info->coordinates;
7114 subpath_offset=mvg_info->offset;
7120 ThrowPointExpectedException(token,exception);
7125 if (status == MagickFalse)
7127 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
7128 primitive_info->coordinates=(size_t) (q-primitive_info);
7129 number_coordinates+=primitive_info->coordinates;
7130 for (i=0; i < (ssize_t) number_coordinates; i++)
7133 q->primitive=primitive_type;
7135 q->method=FillToBorderMethod;
7138 return((ssize_t) number_coordinates);
7141static MagickBooleanType TraceRectangle(
PrimitiveInfo *primitive_info,
7154 if (TracePoint(p,start) == MagickFalse)
7155 return(MagickFalse);
7156 p+=(ssize_t) p->coordinates;
7159 if (TracePoint(p,point) == MagickFalse)
7160 return(MagickFalse);
7161 p+=(ssize_t) p->coordinates;
7162 if (TracePoint(p,end) == MagickFalse)
7163 return(MagickFalse);
7164 p+=(ssize_t) p->coordinates;
7167 if (TracePoint(p,point) == MagickFalse)
7168 return(MagickFalse);
7169 p+=(ssize_t) p->coordinates;
7170 if (TracePoint(p,start) == MagickFalse)
7171 return(MagickFalse);
7172 p+=(ssize_t) p->coordinates;
7173 primitive_info->coordinates=(size_t) (p-primitive_info);
7174 primitive_info->closed_subpath=MagickTrue;
7175 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7177 p->primitive=primitive_info->primitive;
7183static MagickBooleanType TraceRoundRectangle(
MVGInfo *mvg_info,
7203 offset=mvg_info->offset;
7204 segment.x=fabs(end.x-start.x);
7205 segment.y=fabs(end.y-start.y);
7206 if ((segment.x < MagickEpsilon) || (segment.y < MagickEpsilon))
7208 (*mvg_info->primitive_info+mvg_info->offset)->coordinates=0;
7211 if (arc.x > (0.5*segment.x))
7212 arc.x=0.5*segment.x;
7213 if (arc.y > (0.5*segment.y))
7214 arc.y=0.5*segment.y;
7215 point.x=start.x+segment.x-arc.x;
7216 point.y=start.y+arc.y;
7219 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7220 return(MagickFalse);
7221 p=(*mvg_info->primitive_info)+mvg_info->offset;
7222 mvg_info->offset+=(ssize_t) p->coordinates;
7223 point.x=start.x+segment.x-arc.x;
7224 point.y=start.y+segment.y-arc.y;
7227 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7228 return(MagickFalse);
7229 p=(*mvg_info->primitive_info)+mvg_info->offset;
7230 mvg_info->offset+=(ssize_t) p->coordinates;
7231 point.x=start.x+arc.x;
7232 point.y=start.y+segment.y-arc.y;
7235 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7236 return(MagickFalse);
7237 p=(*mvg_info->primitive_info)+mvg_info->offset;
7238 mvg_info->offset+=(ssize_t) p->coordinates;
7239 point.x=start.x+arc.x;
7240 point.y=start.y+arc.y;
7243 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7244 return(MagickFalse);
7245 p=(*mvg_info->primitive_info)+mvg_info->offset;
7246 mvg_info->offset+=(ssize_t) p->coordinates;
7247 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7248 return(MagickFalse);
7249 p=(*mvg_info->primitive_info)+mvg_info->offset;
7250 if (TracePoint(p,(*mvg_info->primitive_info+offset)->point) == MagickFalse)
7251 return(MagickFalse);
7252 p+=(ssize_t) p->coordinates;
7253 mvg_info->offset=offset;
7254 primitive_info=(*mvg_info->primitive_info)+offset;
7255 primitive_info->coordinates=(size_t) (p-primitive_info);
7256 primitive_info->closed_subpath=MagickTrue;
7257 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7259 p->primitive=primitive_info->primitive;
7265static MagickBooleanType TraceSquareLinecap(
PrimitiveInfo *primitive_info,
7266 const size_t number_vertices,
const double offset)
7283 for (i=1; i < (ssize_t) number_vertices; i++)
7285 dx=primitive_info[0].point.x-primitive_info[i].point.x;
7286 dy=primitive_info[0].point.y-primitive_info[i].point.y;
7287 if ((fabs((
double) dx) >= MagickEpsilon) ||
7288 (fabs((
double) dy) >= MagickEpsilon))
7291 if (i == (ssize_t) number_vertices)
7292 i=(ssize_t) number_vertices-1L;
7293 distance=hypot((
double) dx,(
double) dy);
7294 primitive_info[0].point.x=(double) (primitive_info[i].point.x+
7295 dx*(distance+offset)/distance);
7296 primitive_info[0].point.y=(double) (primitive_info[i].point.y+
7297 dy*(distance+offset)/distance);
7298 for (j=(ssize_t) number_vertices-2; j >= 0; j--)
7300 dx=primitive_info[number_vertices-1].point.x-primitive_info[j].point.x;
7301 dy=primitive_info[number_vertices-1].point.y-primitive_info[j].point.y;
7302 if ((fabs((
double) dx) >= MagickEpsilon) ||
7303 (fabs((
double) dy) >= MagickEpsilon))
7306 distance=hypot((
double) dx,(
double) dy);
7307 primitive_info[number_vertices-1].point.x=(double) (primitive_info[j].point.x+
7308 dx*(distance+offset)/distance);
7309 primitive_info[number_vertices-1].point.y=(double) (primitive_info[j].point.y+
7310 dy*(distance+offset)/distance);
7317#define MaxStrokePad (6*BezierQuantum+360)
7318#define CheckPathExtent(pad_p,pad_q) \
7320 if ((pad_p) > MaxBezierCoordinates) \
7321 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7323 if ((p+(ssize_t) (pad_p)) >= (ssize_t) extent_p) \
7325 if (~extent_p < (pad_p)) \
7326 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7329 extent_p+=(pad_p); \
7330 stroke_p=(PointInfo *) ResizeQuantumMemory(stroke_p,extent_p+ \
7331 MaxStrokePad,sizeof(*stroke_p)); \
7334 if ((pad_q) > MaxBezierCoordinates) \
7335 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7337 if ((q+(ssize_t) (pad_q)) >= (ssize_t) extent_q) \
7339 if (~extent_q < (pad_q)) \
7340 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7343 extent_q+=(pad_q); \
7344 stroke_q=(PointInfo *) ResizeQuantumMemory(stroke_q,extent_q+ \
7345 MaxStrokePad,sizeof(*stroke_q)); \
7348 if ((stroke_p == (PointInfo *) NULL) || (stroke_q == (PointInfo *) NULL)) \
7350 if (stroke_p != (PointInfo *) NULL) \
7351 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7352 if (stroke_q != (PointInfo *) NULL) \
7353 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7354 polygon_primitive=(PrimitiveInfo *) \
7355 RelinquishMagickMemory(polygon_primitive); \
7356 (void) ThrowMagickException(exception,GetMagickModule(), \
7357 ResourceLimitError,"MemoryAllocationFailed","`%s'",""); \
7358 return((PrimitiveInfo *) NULL); \
7362 typedef struct _StrokeSegment
7408 inverse_slope = {0.0, 0.0},
7415 number_vertices=primitive_info->coordinates;
7416 polygon_primitive=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7417 number_vertices+2UL,
sizeof(*polygon_primitive));
7420 (void) ThrowMagickException(exception,GetMagickModule(),
7421 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7424 (void) memcpy(polygon_primitive,primitive_info,(
size_t) number_vertices*
7425 sizeof(*polygon_primitive));
7426 offset.x=primitive_info[number_vertices-1].point.x-primitive_info[0].point.x;
7427 offset.y=primitive_info[number_vertices-1].point.y-primitive_info[0].point.y;
7428 closed_path=(fabs(offset.x) < MagickEpsilon) &&
7429 (fabs(offset.y) < MagickEpsilon) ? MagickTrue : MagickFalse;
7430 if (((draw_info->linejoin == RoundJoin) ||
7431 (draw_info->linejoin == MiterJoin)) && (closed_path != MagickFalse))
7433 polygon_primitive[number_vertices]=primitive_info[1];
7436 polygon_primitive[number_vertices].primitive=UndefinedPrimitive;
7442 for (n=1; n < (ssize_t) number_vertices; n++)
7444 dx.p=polygon_primitive[n].point.x-polygon_primitive[0].point.x;
7445 dy.p=polygon_primitive[n].point.y-polygon_primitive[0].point.y;
7446 if ((fabs(dx.p) >= MagickEpsilon) || (fabs(dy.p) >= MagickEpsilon))
7449 if (n == (ssize_t) number_vertices)
7451 if ((draw_info->linecap != RoundCap) || (closed_path != MagickFalse))
7457 sizeof(*stroke_polygon));
7458 stroke_polygon[0]=polygon_primitive[0];
7459 stroke_polygon[0].coordinates=0;
7462 return(stroke_polygon);
7464 n=(ssize_t) number_vertices-1L;
7466 extent_p=2*number_vertices;
7467 extent_q=2*number_vertices;
7468 stroke_p=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_p+MaxStrokePad,
7470 stroke_q=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_q+MaxStrokePad,
7475 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7477 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7479 RelinquishMagickMemory(polygon_primitive);
7480 (void) ThrowMagickException(exception,GetMagickModule(),
7481 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7485 inverse_slope.p=0.0;
7486 if (fabs(dx.p) < MagickEpsilon)
7489 slope.p=dy.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7491 slope.p=dy.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7494 if (fabs(dy.p) < MagickEpsilon)
7497 inverse_slope.p=dx.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7499 inverse_slope.p=dx.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7504 inverse_slope.p=(-1.0*PerceptibleReciprocal(slope.p));
7506 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
7507 miterlimit=(double) (draw_info->miterlimit*draw_info->miterlimit*mid*mid);
7508 if ((draw_info->linecap == SquareCap) && (closed_path == MagickFalse))
7509 (void) TraceSquareLinecap(polygon_primitive,number_vertices,mid);
7510 offset.x=sqrt((
double) (mid*mid/(inverse_slope.p*inverse_slope.p+1.0)));
7511 offset.y=(double) (offset.x*inverse_slope.p);
7512 if ((dy.p*offset.x-dx.p*offset.y) > 0.0)
7514 box_p[0].x=polygon_primitive[0].point.x-offset.x;
7515 box_p[0].y=polygon_primitive[0].point.y-offset.x*inverse_slope.p;
7516 box_p[1].x=polygon_primitive[n].point.x-offset.x;
7517 box_p[1].y=polygon_primitive[n].point.y-offset.x*inverse_slope.p;
7518 box_q[0].x=polygon_primitive[0].point.x+offset.x;
7519 box_q[0].y=polygon_primitive[0].point.y+offset.x*inverse_slope.p;
7520 box_q[1].x=polygon_primitive[n].point.x+offset.x;
7521 box_q[1].y=polygon_primitive[n].point.y+offset.x*inverse_slope.p;
7525 box_p[0].x=polygon_primitive[0].point.x+offset.x;
7526 box_p[0].y=polygon_primitive[0].point.y+offset.y;
7527 box_p[1].x=polygon_primitive[n].point.x+offset.x;
7528 box_p[1].y=polygon_primitive[n].point.y+offset.y;
7529 box_q[0].x=polygon_primitive[0].point.x-offset.x;
7530 box_q[0].y=polygon_primitive[0].point.y-offset.y;
7531 box_q[1].x=polygon_primitive[n].point.x-offset.x;
7532 box_q[1].y=polygon_primitive[n].point.y-offset.y;
7539 stroke_q[p++]=box_q[0];
7540 stroke_p[q++]=box_p[0];
7541 for (i=(ssize_t) n+1; i < (ssize_t) number_vertices; i++)
7546 dx.q=polygon_primitive[i].point.x-polygon_primitive[n].point.x;
7547 dy.q=polygon_primitive[i].point.y-polygon_primitive[n].point.y;
7548 dot_product=dx.q*dx.q+dy.q*dy.q;
7549 if (dot_product < 0.25)
7552 inverse_slope.q=0.0;
7553 if (fabs(dx.q) < MagickEpsilon)
7556 slope.q=dy.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7558 slope.q=dy.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7561 if (fabs(dy.q) < MagickEpsilon)
7564 inverse_slope.q=dx.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7566 inverse_slope.q=dx.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7571 inverse_slope.q=(-1.0*PerceptibleReciprocal(slope.q));
7573 offset.x=sqrt((
double) (mid*mid/(inverse_slope.q*inverse_slope.q+1.0)));
7574 offset.y=(double) (offset.x*inverse_slope.q);
7575 dot_product=dy.q*offset.x-dx.q*offset.y;
7576 if (dot_product > 0.0)
7578 box_p[2].x=polygon_primitive[n].point.x-offset.x;
7579 box_p[2].y=polygon_primitive[n].point.y-offset.y;
7580 box_p[3].x=polygon_primitive[i].point.x-offset.x;
7581 box_p[3].y=polygon_primitive[i].point.y-offset.y;
7582 box_q[2].x=polygon_primitive[n].point.x+offset.x;
7583 box_q[2].y=polygon_primitive[n].point.y+offset.y;
7584 box_q[3].x=polygon_primitive[i].point.x+offset.x;
7585 box_q[3].y=polygon_primitive[i].point.y+offset.y;
7589 box_p[2].x=polygon_primitive[n].point.x+offset.x;
7590 box_p[2].y=polygon_primitive[n].point.y+offset.y;
7591 box_p[3].x=polygon_primitive[i].point.x+offset.x;
7592 box_p[3].y=polygon_primitive[i].point.y+offset.y;
7593 box_q[2].x=polygon_primitive[n].point.x-offset.x;
7594 box_q[2].y=polygon_primitive[n].point.y-offset.y;
7595 box_q[3].x=polygon_primitive[i].point.x-offset.x;
7596 box_q[3].y=polygon_primitive[i].point.y-offset.y;
7598 if (fabs((
double) (slope.p-slope.q)) < MagickEpsilon)
7605 box_p[4].x=(double) ((slope.p*box_p[0].x-box_p[0].y-slope.q*box_p[3].x+
7606 box_p[3].y)/(slope.p-slope.q));
7607 box_p[4].y=(double) (slope.p*(box_p[4].x-box_p[0].x)+box_p[0].y);
7608 box_q[4].x=(double) ((slope.p*box_q[0].x-box_q[0].y-slope.q*box_q[3].x+
7609 box_q[3].y)/(slope.p-slope.q));
7610 box_q[4].y=(double) (slope.p*(box_q[4].x-box_q[0].x)+box_q[0].y);
7612 DisableMSCWarning(4127)
7613 CheckPathExtent(MaxStrokePad,MaxStrokePad);
7615 dot_product=dx.q*dy.p-dx.p*dy.q;
7616 if (dot_product <= 0.0)
7617 switch (draw_info->linejoin)
7621 stroke_q[q++]=box_q[1];
7622 stroke_q[q++]=box_q[2];
7623 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7624 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7625 if (dot_product <= miterlimit)
7626 stroke_p[p++]=box_p[4];
7629 stroke_p[p++]=box_p[1];
7630 stroke_p[p++]=box_p[2];
7636 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7637 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7638 if (dot_product <= miterlimit)
7640 stroke_q[q++]=box_q[4];
7641 stroke_p[p++]=box_p[4];
7645 stroke_q[q++]=box_q[1];
7646 stroke_q[q++]=box_q[2];
7647 stroke_p[p++]=box_p[1];
7648 stroke_p[p++]=box_p[2];
7654 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7655 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7656 if (dot_product <= miterlimit)
7657 stroke_p[p++]=box_p[4];
7660 stroke_p[p++]=box_p[1];
7661 stroke_p[p++]=box_p[2];
7663 center=polygon_primitive[n].point;
7664 theta.p=atan2(box_q[1].y-center.y,box_q[1].x-center.x);
7665 theta.q=atan2(box_q[2].y-center.y,box_q[2].x-center.x);
7666 if (theta.q < theta.p)
7667 theta.q+=2.0*MagickPI;
7668 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.q-
7669 theta.p)/(2.0*sqrt(PerceptibleReciprocal(mid))))));
7670 DisableMSCWarning(4127)
7671 CheckPathExtent(MaxStrokePad,arc_segments+MaxStrokePad);
7673 stroke_q[q].x=box_q[1].x;
7674 stroke_q[q].y=box_q[1].y;
7676 for (j=1; j < (ssize_t) arc_segments; j++)
7678 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7679 stroke_q[q].x=(double) (center.x+mid*cos(fmod((
double)
7680 (theta.p+delta_theta),DegreesToRadians(360.0))));
7681 stroke_q[q].y=(double) (center.y+mid*sin(fmod((
double)
7682 (theta.p+delta_theta),DegreesToRadians(360.0))));
7685 stroke_q[q++]=box_q[2];
7692 switch (draw_info->linejoin)
7696 stroke_p[p++]=box_p[1];
7697 stroke_p[p++]=box_p[2];
7698 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7699 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7700 if (dot_product <= miterlimit)
7701 stroke_q[q++]=box_q[4];
7704 stroke_q[q++]=box_q[1];
7705 stroke_q[q++]=box_q[2];
7711 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7712 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7713 if (dot_product <= miterlimit)
7715 stroke_q[q++]=box_q[4];
7716 stroke_p[p++]=box_p[4];
7720 stroke_q[q++]=box_q[1];
7721 stroke_q[q++]=box_q[2];
7722 stroke_p[p++]=box_p[1];
7723 stroke_p[p++]=box_p[2];
7729 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7730 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7731 if (dot_product <= miterlimit)
7732 stroke_q[q++]=box_q[4];
7735 stroke_q[q++]=box_q[1];
7736 stroke_q[q++]=box_q[2];
7738 center=polygon_primitive[n].point;
7739 theta.p=atan2(box_p[1].y-center.y,box_p[1].x-center.x);
7740 theta.q=atan2(box_p[2].y-center.y,box_p[2].x-center.x);
7741 if (theta.p < theta.q)
7742 theta.p+=2.0*MagickPI;
7743 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.p-
7744 theta.q)/(2.0*sqrt((
double) (PerceptibleReciprocal(mid)))))));
7745 DisableMSCWarning(4127)
7746 CheckPathExtent(arc_segments+MaxStrokePad,MaxStrokePad);
7748 stroke_p[p++]=box_p[1];
7749 for (j=1; j < (ssize_t) arc_segments; j++)
7751 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7752 stroke_p[p].x=(double) (center.x+mid*cos(fmod((
double)
7753 (theta.p+delta_theta),DegreesToRadians(360.0))));
7754 stroke_p[p].y=(double) (center.y+mid*sin(fmod((
double)
7755 (theta.p+delta_theta),DegreesToRadians(360.0))));
7758 stroke_p[p++]=box_p[2];
7765 inverse_slope.p=inverse_slope.q;
7774 stroke_p[p++]=box_p[1];
7775 stroke_q[q++]=box_q[1];
7779 stroke_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7780 (p+q+2L*closed_path+2L),
sizeof(*stroke_polygon));
7783 (void) ThrowMagickException(exception,GetMagickModule(),
7784 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7785 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7786 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7789 return(stroke_polygon);
7791 for (i=0; i < (ssize_t) p; i++)
7793 stroke_polygon[i]=polygon_primitive[0];
7794 stroke_polygon[i].point=stroke_p[i];
7796 if (closed_path != MagickFalse)
7798 stroke_polygon[i]=polygon_primitive[0];
7799 stroke_polygon[i].point=stroke_polygon[0].point;
7802 for ( ; i < (ssize_t) (p+q+closed_path); i++)
7804 stroke_polygon[i]=polygon_primitive[0];
7805 stroke_polygon[i].point=stroke_q[p+q+closed_path-(i+1)];
7807 if (closed_path != MagickFalse)
7809 stroke_polygon[i]=polygon_primitive[0];
7810 stroke_polygon[i].point=stroke_polygon[p+closed_path].point;
7813 stroke_polygon[i]=polygon_primitive[0];
7814 stroke_polygon[i].point=stroke_polygon[0].point;
7816 stroke_polygon[i].primitive=UndefinedPrimitive;
7817 stroke_polygon[0].coordinates=(size_t) (p+q+2*closed_path+1);
7818 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7819 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7820 polygon_primitive=(
PrimitiveInfo *) RelinquishMagickMemory(polygon_primitive);
7821 return(stroke_polygon);