48 #include "magick/studio.h"
49 #include "magick/annotate.h"
50 #include "magick/artifact.h"
51 #include "magick/blob.h"
52 #include "magick/cache.h"
53 #include "magick/cache-private.h"
54 #include "magick/cache-view.h"
55 #include "magick/channel.h"
56 #include "magick/color.h"
57 #include "magick/color-private.h"
58 #include "magick/colorspace.h"
59 #include "magick/colorspace-private.h"
60 #include "magick/composite.h"
61 #include "magick/composite-private.h"
62 #include "magick/constitute.h"
63 #include "magick/draw.h"
64 #include "magick/draw-private.h"
65 #include "magick/enhance.h"
66 #include "magick/exception.h"
67 #include "magick/exception-private.h"
68 #include "magick/gem.h"
69 #include "magick/geometry.h"
70 #include "magick/image-private.h"
71 #include "magick/list.h"
72 #include "magick/log.h"
73 #include "magick/memory-private.h"
74 #include "magick/monitor.h"
75 #include "magick/monitor-private.h"
76 #include "magick/option.h"
77 #include "magick/paint.h"
78 #include "magick/pixel-accessor.h"
79 #include "magick/pixel-private.h"
80 #include "magick/property.h"
81 #include "magick/resample.h"
82 #include "magick/resample-private.h"
83 #include "magick/resource_.h"
84 #include "magick/splay-tree.h"
85 #include "magick/string_.h"
86 #include "magick/string-private.h"
87 #include "magick/thread-private.h"
88 #include "magick/token.h"
89 #include "magick/transform.h"
90 #include "magick/utility.h"
95 #define BezierQuantum 200
96 #define PrimitiveExtentPad 4296.0
97 #define MaxBezierCoordinates 67108864
98 #define ThrowPointExpectedException(image,token) \
100 (void) ThrowMagickException(&(image)->exception,GetMagickModule(),DrawError, \
101 "NonconformingDrawingPrimitiveDefinition","`%s'",token); \
102 status=MagickFalse; \
192 *DrawClippingMask(
Image *,
const DrawInfo *,
const char *,
const char *,
195 static MagickBooleanType
200 const double,
const MagickBooleanType,
const MagickBooleanType),
201 TraceBezier(
MVGInfo *,
const size_t),
207 TraceSquareLinecap(
PrimitiveInfo *,
const size_t,
const double);
233 MagickExport
DrawInfo *AcquireDrawInfo(
void)
238 draw_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*draw_info));
239 GetDrawInfo((
ImageInfo *) NULL,draw_info);
276 clone_info=(
DrawInfo *) AcquireCriticalMemory(
sizeof(*clone_info));
277 GetDrawInfo(image_info,clone_info);
280 if (draw_info->id != (
char *) NULL)
281 (void) CloneString(&clone_info->id,draw_info->id);
282 if (draw_info->primitive != (
char *) NULL)
283 (
void) CloneString(&clone_info->primitive,draw_info->primitive);
284 if (draw_info->geometry != (
char *) NULL)
285 (void) CloneString(&clone_info->geometry,draw_info->geometry);
286 clone_info->compliance=draw_info->compliance;
287 clone_info->viewbox=draw_info->viewbox;
288 clone_info->affine=draw_info->affine;
289 clone_info->gravity=draw_info->gravity;
290 clone_info->fill=draw_info->fill;
291 clone_info->stroke=draw_info->stroke;
292 clone_info->stroke_width=draw_info->stroke_width;
293 if (draw_info->fill_pattern != (
Image *) NULL)
294 clone_info->fill_pattern=CloneImage(draw_info->fill_pattern,0,0,MagickTrue,
295 &draw_info->fill_pattern->exception);
297 if (draw_info->tile != (
Image *) NULL)
298 clone_info->fill_pattern=CloneImage(draw_info->tile,0,0,MagickTrue,
299 &draw_info->tile->exception);
300 clone_info->tile=NewImageList();
301 if (draw_info->stroke_pattern != (
Image *) NULL)
302 clone_info->stroke_pattern=CloneImage(draw_info->stroke_pattern,0,0,
303 MagickTrue,&draw_info->stroke_pattern->exception);
304 clone_info->stroke_antialias=draw_info->stroke_antialias;
305 clone_info->text_antialias=draw_info->text_antialias;
306 clone_info->fill_rule=draw_info->fill_rule;
307 clone_info->linecap=draw_info->linecap;
308 clone_info->linejoin=draw_info->linejoin;
309 clone_info->miterlimit=draw_info->miterlimit;
310 clone_info->dash_offset=draw_info->dash_offset;
311 clone_info->decorate=draw_info->decorate;
312 clone_info->compose=draw_info->compose;
313 if (draw_info->text != (
char *) NULL)
314 (void) CloneString(&clone_info->text,draw_info->text);
315 if (draw_info->font != (
char *) NULL)
316 (
void) CloneString(&clone_info->font,draw_info->font);
317 if (draw_info->metrics != (
char *) NULL)
318 (void) CloneString(&clone_info->metrics,draw_info->metrics);
319 if (draw_info->family != (
char *) NULL)
320 (
void) CloneString(&clone_info->family,draw_info->family);
321 clone_info->style=draw_info->style;
322 clone_info->stretch=draw_info->stretch;
323 clone_info->weight=draw_info->weight;
324 if (draw_info->encoding != (
char *) NULL)
325 (void) CloneString(&clone_info->encoding,draw_info->encoding);
326 clone_info->pointsize=draw_info->pointsize;
327 clone_info->kerning=draw_info->kerning;
328 clone_info->interline_spacing=draw_info->interline_spacing;
329 clone_info->interword_spacing=draw_info->interword_spacing;
330 clone_info->direction=draw_info->direction;
331 if (draw_info->density != (
char *) NULL)
332 (
void) CloneString(&clone_info->density,draw_info->density);
333 clone_info->align=draw_info->align;
334 clone_info->undercolor=draw_info->undercolor;
335 clone_info->border_color=draw_info->border_color;
336 if (draw_info->server_name != (
char *) NULL)
337 (void) CloneString(&clone_info->server_name,draw_info->server_name);
338 if (draw_info->dash_pattern != (
double *) NULL)
343 for (x=0; fabs(draw_info->dash_pattern[x]) >= MagickEpsilon; x++) ;
344 clone_info->dash_pattern=(
double *) AcquireQuantumMemory((
size_t) (2*x+2),
345 sizeof(*clone_info->dash_pattern));
346 if (clone_info->dash_pattern == (
double *) NULL)
347 ThrowFatalException(ResourceLimitFatalError,
348 "UnableToAllocateDashPattern");
349 (void) memset(clone_info->dash_pattern,0,(
size_t) (2*x+2)*
350 sizeof(*clone_info->dash_pattern));
351 (void) memcpy(clone_info->dash_pattern,draw_info->dash_pattern,(
size_t)
352 (x+1)*
sizeof(*clone_info->dash_pattern));
354 clone_info->gradient=draw_info->gradient;
355 if (draw_info->gradient.stops != (
StopInfo *) NULL)
360 number_stops=clone_info->gradient.number_stops;
361 clone_info->gradient.stops=(
StopInfo *) AcquireQuantumMemory((
size_t)
362 number_stops,
sizeof(*clone_info->gradient.stops));
363 if (clone_info->gradient.stops == (
StopInfo *) NULL)
364 ThrowFatalException(ResourceLimitFatalError,
365 "UnableToAllocateDashPattern");
366 (void) memcpy(clone_info->gradient.stops,draw_info->gradient.stops,
367 (
size_t) number_stops*
sizeof(*clone_info->gradient.stops));
369 clone_info->bounds=draw_info->bounds;
370 clone_info->fill_opacity=draw_info->fill_opacity;
371 clone_info->stroke_opacity=draw_info->stroke_opacity;
372 clone_info->element_reference=draw_info->element_reference;
373 clone_info->clip_path=draw_info->clip_path;
374 clone_info->clip_units=draw_info->clip_units;
375 if (draw_info->clip_mask != (
char *) NULL)
376 (
void) CloneString(&clone_info->clip_mask,draw_info->clip_mask);
377 if (draw_info->clipping_mask != (
Image *) NULL)
378 clone_info->clipping_mask=CloneImage(draw_info->clipping_mask,0,0,
379 MagickTrue,&draw_info->clipping_mask->exception);
380 if (draw_info->composite_mask != (
Image *) NULL)
381 clone_info->composite_mask=CloneImage(draw_info->composite_mask,0,0,
382 MagickTrue,&draw_info->composite_mask->exception);
383 clone_info->render=draw_info->render;
384 clone_info->debug=draw_info->debug;
425 if (polygon_info->edges != (
EdgeInfo *) NULL)
427 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
428 if (polygon_info->edges[i].points != (
PointInfo *) NULL)
429 polygon_info->edges[i].points=(
PointInfo *)
430 RelinquishMagickMemory(polygon_info->edges[i].points);
431 polygon_info->edges=(
EdgeInfo *) RelinquishMagickMemory(
432 polygon_info->edges);
434 return((
PolygonInfo *) RelinquishMagickMemory(polygon_info));
437 #if defined(__cplusplus) || defined(c_plusplus)
441 static int DrawCompareEdges(
const void *p_edge,
const void *q_edge)
443 #define DrawCompareEdge(p,q) \
445 if (((p)-(q)) < 0.0) \
447 if (((p)-(q)) > 0.0) \
458 p=((
const EdgeInfo *) p_edge)->points;
459 q=((
const EdgeInfo *) q_edge)->points;
460 DrawCompareEdge(p[0].y,q[0].y);
461 DrawCompareEdge(p[0].x,q[0].x);
462 DrawCompareEdge((p[1].x-p[0].x)*(q[1].y-q[0].y),(p[1].y-p[0].y)*
464 DrawCompareEdge(p[1].y,q[1].y);
465 DrawCompareEdge(p[1].x,q[1].x);
469 #if defined(__cplusplus) || defined(c_plusplus)
473 static void LogPolygonInfo(
const PolygonInfo *polygon_info)
482 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin active-edge");
483 p=polygon_info->edges;
484 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
486 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" edge %.20g:",
488 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" direction: %s",
489 p->direction != MagickFalse ?
"down" :
"up");
490 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" ghostline: %s",
491 p->ghostline != MagickFalse ?
"transparent" :
"opaque");
492 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
493 " bounds: %g,%g - %g,%g",p->bounds.x1,p->bounds.y1,
494 p->bounds.x2,p->bounds.y2);
495 for (j=0; j < (ssize_t) p->number_points; j++)
496 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %g,%g",
497 p->points[j].x,p->points[j].y);
500 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end active-edge");
503 static void ReversePoints(
PointInfo *points,
const size_t number_points)
511 for (i=0; i < (ssize_t) (number_points >> 1); i++)
514 points[i]=points[number_points-(i+1)];
515 points[number_points-(i+1)]=point;
551 polygon_info=(
PolygonInfo *) AcquireMagickMemory(
sizeof(*polygon_info));
554 (void) ThrowMagickException(exception,GetMagickModule(),
555 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
559 polygon_info->edges=(
EdgeInfo *) AcquireQuantumMemory(number_edges,
560 sizeof(*polygon_info->edges));
561 if (polygon_info->edges == (
EdgeInfo *) NULL)
563 (void) ThrowMagickException(exception,GetMagickModule(),
564 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
565 return(DestroyPolygonInfo(polygon_info));
567 (void) memset(polygon_info->edges,0,number_edges*
568 sizeof(*polygon_info->edges));
571 ghostline=MagickFalse;
575 (void) memset(&point,0,
sizeof(point));
576 (void) memset(&bounds,0,
sizeof(bounds));
577 polygon_info->edges[edge].number_points=(size_t) n;
578 polygon_info->edges[edge].scanline=0.0;
579 polygon_info->edges[edge].highwater=0;
580 polygon_info->edges[edge].ghostline=ghostline;
581 polygon_info->edges[edge].direction=(ssize_t) direction;
582 polygon_info->edges[edge].points=points;
583 polygon_info->edges[edge].bounds=bounds;
584 polygon_info->number_edges=0;
585 for (i=0; path_info[i].code != EndCode; i++)
587 if ((path_info[i].code == MoveToCode) || (path_info[i].code == OpenCode) ||
588 (path_info[i].code == GhostlineCode))
593 if ((points != (
PointInfo *) NULL) && (n >= 2))
595 if (edge == number_edges)
598 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
599 polygon_info->edges,(
size_t) number_edges,
600 sizeof(*polygon_info->edges));
601 if (polygon_info->edges == (
EdgeInfo *) NULL)
603 (void) ThrowMagickException(exception,GetMagickModule(),
604 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
605 points=(
PointInfo *) RelinquishMagickMemory(points);
606 return(DestroyPolygonInfo(polygon_info));
609 polygon_info->edges[edge].number_points=(size_t) n;
610 polygon_info->edges[edge].scanline=(-1.0);
611 polygon_info->edges[edge].highwater=0;
612 polygon_info->edges[edge].ghostline=ghostline;
613 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
615 ReversePoints(points,(
size_t) n);
616 polygon_info->edges[edge].points=points;
617 polygon_info->edges[edge].bounds=bounds;
618 polygon_info->edges[edge].bounds.y1=points[0].y;
619 polygon_info->edges[edge].bounds.y2=points[n-1].y;
621 ghostline=MagickFalse;
623 polygon_info->number_edges=edge;
628 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
632 (void) ThrowMagickException(exception,GetMagickModule(),
633 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
634 return(DestroyPolygonInfo(polygon_info));
637 ghostline=path_info[i].code == GhostlineCode ? MagickTrue : MagickFalse;
638 point=path_info[i].point;
649 next_direction=((path_info[i].point.y > point.y) ||
650 ((fabs(path_info[i].point.y-point.y) < MagickEpsilon) &&
651 (path_info[i].point.x > point.x))) ? 1 : -1;
652 if ((points != (
PointInfo *) NULL) && (direction != 0) &&
653 (direction != next_direction))
659 if (edge == number_edges)
662 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
663 polygon_info->edges,(
size_t) number_edges,
664 sizeof(*polygon_info->edges));
665 if (polygon_info->edges == (
EdgeInfo *) NULL)
667 (void) ThrowMagickException(exception,GetMagickModule(),
668 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
669 points=(
PointInfo *) RelinquishMagickMemory(points);
670 return(DestroyPolygonInfo(polygon_info));
673 polygon_info->edges[edge].number_points=(size_t) n;
674 polygon_info->edges[edge].scanline=(-1.0);
675 polygon_info->edges[edge].highwater=0;
676 polygon_info->edges[edge].ghostline=ghostline;
677 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
679 ReversePoints(points,(
size_t) n);
680 polygon_info->edges[edge].points=points;
681 polygon_info->edges[edge].bounds=bounds;
682 polygon_info->edges[edge].bounds.y1=points[0].y;
683 polygon_info->edges[edge].bounds.y2=points[n-1].y;
684 polygon_info->number_edges=edge+1;
687 points=(
PointInfo *) AcquireQuantumMemory((
size_t) number_points,
691 (void) ThrowMagickException(exception,GetMagickModule(),
692 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
693 return(DestroyPolygonInfo(polygon_info));
696 ghostline=MagickFalse;
702 direction=next_direction;
705 if (n == (ssize_t) number_points)
708 points=(
PointInfo *) ResizeQuantumMemory(points,(
size_t) number_points,
712 (void) ThrowMagickException(exception,GetMagickModule(),
713 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
714 return(DestroyPolygonInfo(polygon_info));
717 point=path_info[i].point;
719 if (point.x < bounds.x1)
721 if (point.x > bounds.x2)
728 points=(
PointInfo *) RelinquishMagickMemory(points);
731 if (edge == number_edges)
734 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(
735 polygon_info->edges,(
size_t) number_edges,
736 sizeof(*polygon_info->edges));
737 if (polygon_info->edges == (
EdgeInfo *) NULL)
739 (void) ThrowMagickException(exception,GetMagickModule(),
740 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
741 return(DestroyPolygonInfo(polygon_info));
744 polygon_info->edges[edge].number_points=(size_t) n;
745 polygon_info->edges[edge].scanline=(-1.0);
746 polygon_info->edges[edge].highwater=0;
747 polygon_info->edges[edge].ghostline=ghostline;
748 polygon_info->edges[edge].direction=(ssize_t) (direction > 0);
750 ReversePoints(points,(
size_t) n);
751 polygon_info->edges[edge].points=points;
752 polygon_info->edges[edge].bounds=bounds;
753 polygon_info->edges[edge].bounds.y1=points[0].y;
754 polygon_info->edges[edge].bounds.y2=points[n-1].y;
756 ghostline=MagickFalse;
758 polygon_info->number_edges=edge;
761 polygon_info->number_edges=edge;
762 polygon_info->number_edges=edge;
763 polygon_info->edges=(
EdgeInfo *) ResizeQuantumMemory(polygon_info->edges,
764 polygon_info->number_edges,
sizeof(*polygon_info->edges));
765 if (polygon_info->edges == (
EdgeInfo *) NULL)
767 (void) ThrowMagickException(exception,GetMagickModule(),
768 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
769 return(DestroyPolygonInfo(polygon_info));
771 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
776 edge_info=polygon_info->edges+i;
777 edge_info->points=(
PointInfo *) ResizeQuantumMemory(edge_info->points,
778 edge_info->number_points,
sizeof(*edge_info->points));
779 if (edge_info->points == (
PointInfo *) NULL)
781 (void) ThrowMagickException(exception,GetMagickModule(),
782 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
783 return(DestroyPolygonInfo(polygon_info));
786 qsort(polygon_info->edges,(
size_t) polygon_info->number_edges,
787 sizeof(*polygon_info->edges),DrawCompareEdges);
788 if ((GetLogEventMask() & DrawEvent) != 0)
789 LogPolygonInfo(polygon_info);
790 return(polygon_info);
824 static void LogPathInfo(
const PathInfo *path_info)
829 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin vector-path");
830 for (p=path_info; p->code != EndCode; p++)
831 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
832 " %g,%g %s",p->point.x,p->point.y,p->code == GhostlineCode ?
833 "moveto ghostline" : p->code == OpenCode ?
"moveto open" :
834 p->code == MoveToCode ?
"moveto" : p->code == LineToCode ?
"lineto" :
836 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end vector-path");
839 static PathInfo *ConvertPrimitiveToPath(
864 magick_unreferenced(draw_info);
869 switch (primitive_info->primitive)
880 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
881 path_info=(
PathInfo *) AcquireQuantumMemory((
size_t) (3UL*i+1UL),
885 (void) ThrowMagickException(exception,GetMagickModule(),
886 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
890 closed_subpath=MagickFalse;
897 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
900 if (coordinates <= 0)
905 coordinates=(ssize_t) primitive_info[i].coordinates;
906 p=primitive_info[i].point;
909 closed_subpath=primitive_info[i].closed_subpath;
912 if ((code == MoveToCode) || (coordinates <= 0) ||
913 (fabs(q.x-primitive_info[i].point.x) >= MagickEpsilon) ||
914 (fabs(q.y-primitive_info[i].point.y) >= MagickEpsilon))
919 path_info[n].code=code;
920 path_info[n].point=primitive_info[i].point;
921 q=primitive_info[i].point;
926 if (closed_subpath != MagickFalse)
928 closed_subpath=MagickFalse;
934 path_info[start].code=OpenCode;
935 path_info[n].code=GhostlineCode;
936 path_info[n].point=primitive_info[i].point;
938 path_info[n].code=LineToCode;
939 path_info[n].point=p;
942 path_info[n].code=EndCode;
943 path_info[n].point.x=0.0;
944 path_info[n].point.y=0.0;
945 if (IsEventLogging() != MagickFalse)
946 LogPathInfo(path_info);
947 path_info=(
PathInfo *) ResizeQuantumMemory(path_info,(
size_t) (n+1),
976 assert(draw_info != (
DrawInfo *) NULL);
977 assert(draw_info->signature == MagickCoreSignature);
978 if (IsEventLogging() != MagickFalse)
979 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
980 if (draw_info->id != (
char *) NULL)
981 draw_info->id=DestroyString(draw_info->id);
982 if (draw_info->primitive != (
char *) NULL)
983 draw_info->primitive=DestroyString(draw_info->primitive);
984 if (draw_info->text != (
char *) NULL)
985 draw_info->text=DestroyString(draw_info->text);
986 if (draw_info->geometry != (
char *) NULL)
987 draw_info->geometry=DestroyString(draw_info->geometry);
988 if (draw_info->tile != (
Image *) NULL)
989 draw_info->tile=DestroyImage(draw_info->tile);
990 if (draw_info->fill_pattern != (
Image *) NULL)
991 draw_info->fill_pattern=DestroyImage(draw_info->fill_pattern);
992 if (draw_info->stroke_pattern != (
Image *) NULL)
993 draw_info->stroke_pattern=DestroyImage(draw_info->stroke_pattern);
994 if (draw_info->font != (
char *) NULL)
995 draw_info->font=DestroyString(draw_info->font);
996 if (draw_info->metrics != (
char *) NULL)
997 draw_info->metrics=DestroyString(draw_info->metrics);
998 if (draw_info->family != (
char *) NULL)
999 draw_info->family=DestroyString(draw_info->family);
1000 if (draw_info->encoding != (
char *) NULL)
1001 draw_info->encoding=DestroyString(draw_info->encoding);
1002 if (draw_info->density != (
char *) NULL)
1003 draw_info->density=DestroyString(draw_info->density);
1004 if (draw_info->server_name != (
char *) NULL)
1005 draw_info->server_name=(
char *)
1006 RelinquishMagickMemory(draw_info->server_name);
1007 if (draw_info->dash_pattern != (
double *) NULL)
1008 draw_info->dash_pattern=(
double *) RelinquishMagickMemory(
1009 draw_info->dash_pattern);
1010 if (draw_info->gradient.stops != (
StopInfo *) NULL)
1011 draw_info->gradient.stops=(
StopInfo *) RelinquishMagickMemory(
1012 draw_info->gradient.stops);
1013 if (draw_info->clip_mask != (
char *) NULL)
1014 draw_info->clip_mask=DestroyString(draw_info->clip_mask);
1015 if (draw_info->clipping_mask != (
Image *) NULL)
1016 draw_info->clipping_mask=DestroyImage(draw_info->clipping_mask);
1017 if (draw_info->composite_mask != (
Image *) NULL)
1018 draw_info->composite_mask=DestroyImage(draw_info->composite_mask);
1019 draw_info->signature=(~MagickCoreSignature);
1020 draw_info=(
DrawInfo *) RelinquishMagickMemory(draw_info);
1069 inverse_edge.x1=edge->x1;
1070 inverse_edge.y1=edge->y1;
1071 inverse_edge.x2=edge->x2;
1072 inverse_edge.y2=edge->y2;
1073 z=affine->ry*y+affine->tx;
1074 if (affine->sx >= MagickEpsilon)
1076 intercept=(-z/affine->sx);
1078 if (x > inverse_edge.x1)
1080 intercept=(-z+(double) image->columns)/affine->sx;
1082 if (x < inverse_edge.x2)
1086 if (affine->sx < -MagickEpsilon)
1088 intercept=(-z+(double) image->columns)/affine->sx;
1090 if (x > inverse_edge.x1)
1092 intercept=(-z/affine->sx);
1094 if (x < inverse_edge.x2)
1098 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->columns))
1100 inverse_edge.x2=edge->x1;
1101 return(inverse_edge);
1106 z=affine->sy*y+affine->ty;
1107 if (affine->rx >= MagickEpsilon)
1109 intercept=(-z/affine->rx);
1111 if (x > inverse_edge.x1)
1113 intercept=(-z+(double) image->rows)/affine->rx;
1115 if (x < inverse_edge.x2)
1119 if (affine->rx < -MagickEpsilon)
1121 intercept=(-z+(double) image->rows)/affine->rx;
1123 if (x > inverse_edge.x1)
1125 intercept=(-z/affine->rx);
1127 if (x < inverse_edge.x2)
1131 if ((z < 0.0) || ((size_t) floor(z+0.5) >= image->rows))
1133 inverse_edge.x2=edge->x2;
1134 return(inverse_edge);
1136 return(inverse_edge);
1147 determinant=PerceptibleReciprocal(affine->sx*affine->sy-affine->rx*
1149 inverse_affine.sx=determinant*affine->sy;
1150 inverse_affine.rx=determinant*(-affine->rx);
1151 inverse_affine.ry=determinant*(-affine->ry);
1152 inverse_affine.sy=determinant*affine->sx;
1153 inverse_affine.tx=(-affine->tx)*inverse_affine.sx-affine->ty*
1155 inverse_affine.ty=(-affine->tx)*inverse_affine.rx-affine->ty*
1157 return(inverse_affine);
1160 MagickExport MagickBooleanType DrawAffineImage(
Image *image,
1199 assert(image != (
Image *) NULL);
1200 assert(image->signature == MagickCoreSignature);
1201 assert(source != (
const Image *) NULL);
1202 assert(source->signature == MagickCoreSignature);
1203 if (IsEventLogging() != MagickFalse)
1204 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1208 extent[1].x=(double) source->columns-1.0;
1210 extent[2].x=(
double) source->columns-1.0;
1211 extent[2].y=(double) source->rows-1.0;
1213 extent[3].y=(
double) source->rows-1.0;
1214 for (i=0; i < 4; i++)
1217 extent[i].x=point.x*affine->sx+point.y*affine->ry+affine->tx;
1218 extent[i].y=point.x*affine->rx+point.y*affine->sy+affine->ty;
1222 for (i=1; i < 4; i++)
1224 if (min.x > extent[i].x)
1226 if (min.y > extent[i].y)
1228 if (max.x < extent[i].x)
1230 if (max.y < extent[i].y)
1236 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
1237 return(MagickFalse);
1239 edge.x1=MagickMax(min.x,0.0);
1240 edge.y1=MagickMax(min.y,0.0);
1241 edge.x2=MagickMin(max.x,(
double) image->columns-1.0);
1242 edge.y2=MagickMin(max.y,(
double) image->rows-1.0);
1243 inverse_affine=InverseAffineMatrix(affine);
1244 GetMagickPixelPacket(image,&zero);
1245 exception=(&image->exception);
1246 start=CastDoubleToLong(ceil(edge.y1-0.5));
1247 stop=CastDoubleToLong(floor(edge.y2+0.5));
1248 source_view=AcquireVirtualCacheView(source,exception);
1249 image_view=AcquireAuthenticCacheView(image,exception);
1250 #if defined(MAGICKCORE_OPENMP_SUPPORT)
1251 #pragma omp parallel for schedule(static) shared(status) \
1252 magick_number_threads(source,image,stop-start,1)
1254 for (y=start; y <= stop; y++)
1264 *magick_restrict indexes;
1278 if (status == MagickFalse)
1280 inverse_edge=AffineEdge(source,&inverse_affine,(
double) y,&edge);
1281 if (inverse_edge.x2 < inverse_edge.x1)
1283 q=GetCacheViewAuthenticPixels(image_view,CastDoubleToLong(
1284 ceil(inverse_edge.x1-0.5)),y,(
size_t) CastDoubleToLong(floor(
1285 inverse_edge.x2+0.5)-ceil(inverse_edge.x1-0.5)+1),1,exception);
1288 indexes=GetCacheViewAuthenticIndexQueue(image_view);
1292 for (x=CastDoubleToLong(ceil(inverse_edge.x1-0.5));
1293 x <= CastDoubleToLong(floor(inverse_edge.x2+0.5)); x++)
1295 point.x=(double) x*inverse_affine.sx+y*inverse_affine.ry+
1297 point.y=(
double) x*inverse_affine.rx+y*inverse_affine.sy+
1299 status=InterpolateMagickPixelPacket(source,source_view,
1300 UndefinedInterpolatePixel,point.x,point.y,&pixel,exception);
1301 if (status == MagickFalse)
1303 SetMagickPixelPacket(image,q,indexes+x_offset,&composite);
1304 MagickPixelCompositeOver(&pixel,pixel.opacity,&composite,
1305 composite.opacity,&composite);
1306 SetPixelPacket(image,&composite,q,indexes+x_offset);
1310 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
1313 source_view=DestroyCacheView(source_view);
1314 image_view=DestroyCacheView(image_view);
1347 static MagickBooleanType DrawBoundingRectangles(
Image *image,
1376 (void) memset(primitive_info,0,
sizeof(primitive_info));
1377 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1378 status=QueryColorDatabase(
"#0000",&clone_info->fill,&image->exception);
1379 if (status == MagickFalse)
1381 clone_info=DestroyDrawInfo(clone_info);
1382 return(MagickFalse);
1386 if (clone_info->density != (
char *) NULL)
1394 flags=ParseGeometry(clone_info->density,&geometry_info);
1395 if ((flags & RhoValue) != 0)
1396 resolution.x=geometry_info.rho;
1397 resolution.y=resolution.x;
1398 if ((flags & SigmaValue) != 0)
1399 resolution.y=geometry_info.sigma;
1401 mid=(resolution.x/96.0)*ExpandAffine(&clone_info->affine)*
1402 clone_info->stroke_width/2.0;
1409 bounds=polygon_info->edges[0].bounds;
1410 for (i=1; i < (ssize_t) polygon_info->number_edges; i++)
1412 if (polygon_info->edges[i].bounds.x1 < (
double) bounds.x1)
1413 bounds.x1=polygon_info->edges[i].bounds.x1;
1414 if (polygon_info->edges[i].bounds.y1 < (
double) bounds.y1)
1415 bounds.y1=polygon_info->edges[i].bounds.y1;
1416 if (polygon_info->edges[i].bounds.x2 > (
double) bounds.x2)
1417 bounds.x2=polygon_info->edges[i].bounds.x2;
1418 if (polygon_info->edges[i].bounds.y2 > (
double) bounds.y2)
1419 bounds.y2=polygon_info->edges[i].bounds.y2;
1422 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double)
1423 image->columns ? (
double) image->columns-1 : bounds.x1;
1425 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double)
1426 image->rows ? (
double) image->rows-1 : bounds.y1;
1428 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double)
1429 image->columns ? (
double) image->columns-1 : bounds.x2;
1431 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double)
1432 image->rows ? (
double) image->rows-1 : bounds.y2;
1433 for (i=0; i < (ssize_t) polygon_info->number_edges; i++)
1435 if (polygon_info->edges[i].direction != 0)
1436 status=QueryColorDatabase(
"#f00",&clone_info->stroke,
1439 status=QueryColorDatabase(
"#0f0",&clone_info->stroke,
1441 if (status == MagickFalse)
1443 start.x=(double) (polygon_info->edges[i].bounds.x1-mid);
1444 start.y=(double) (polygon_info->edges[i].bounds.y1-mid);
1445 end.x=(double) (polygon_info->edges[i].bounds.x2+mid);
1446 end.y=(double) (polygon_info->edges[i].bounds.y2+mid);
1447 primitive_info[0].primitive=RectanglePrimitive;
1448 status&=TraceRectangle(primitive_info,start,end);
1449 primitive_info[0].method=ReplaceMethod;
1450 coordinates=(ssize_t) primitive_info[0].coordinates;
1451 primitive_info[coordinates].primitive=UndefinedPrimitive;
1452 status=DrawPrimitive(image,clone_info,primitive_info);
1453 if (status == MagickFalse)
1456 if (i < (ssize_t) polygon_info->number_edges)
1458 clone_info=DestroyDrawInfo(clone_info);
1459 return(status == 0 ? MagickFalse : MagickTrue);
1462 status=QueryColorDatabase(
"#00f",&clone_info->stroke,&image->exception);
1463 if (status == MagickFalse)
1465 clone_info=DestroyDrawInfo(clone_info);
1466 return(MagickFalse);
1468 start.x=(double) (bounds.x1-mid);
1469 start.y=(double) (bounds.y1-mid);
1470 end.x=(double) (bounds.x2+mid);
1471 end.y=(double) (bounds.y2+mid);
1472 primitive_info[0].primitive=RectanglePrimitive;
1473 status&=TraceRectangle(primitive_info,start,end);
1474 primitive_info[0].method=ReplaceMethod;
1475 coordinates=(ssize_t) primitive_info[0].coordinates;
1476 primitive_info[coordinates].primitive=UndefinedPrimitive;
1477 status=DrawPrimitive(image,clone_info,primitive_info);
1478 clone_info=DestroyDrawInfo(clone_info);
1479 return(status == 0 ? MagickFalse : MagickTrue);
1509 MagickExport MagickBooleanType DrawClipPath(
Image *image,
1510 const DrawInfo *draw_info,
const char *
id)
1521 clip_path=GetImageArtifact(image,
id);
1522 if (clip_path == (
const char *) NULL)
1523 return(MagickFalse);
1524 clipping_mask=DrawClippingMask(image,draw_info,draw_info->clip_mask,clip_path,
1526 if (clipping_mask == (
Image *) NULL)
1527 return(MagickFalse);
1528 status=SetImageClipMask(image,clipping_mask);
1529 clipping_mask=DestroyImage(clipping_mask);
1566 const char *
id,
const char *clip_path,
ExceptionInfo *exception)
1580 assert(image != (
Image *) NULL);
1581 assert(image->signature == MagickCoreSignature);
1582 assert(draw_info != (
const DrawInfo *) NULL);
1583 if (IsEventLogging() != MagickFalse)
1584 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1585 clip_mask=AcquireImage((
const ImageInfo *) NULL);
1586 status=SetImageExtent(clip_mask,image->columns,image->rows);
1587 if (status == MagickFalse)
1588 return(DestroyImage(clip_mask));
1589 status=SetImageClipMask(image,(
Image *) NULL);
1590 status=QueryColorCompliance(
"#0000",AllCompliance,
1591 &clip_mask->background_color,exception);
1592 clip_mask->background_color.opacity=(Quantum) TransparentOpacity;
1593 status=SetImageBackgroundColor(clip_mask);
1594 if (draw_info->debug != MagickFalse)
1595 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin clip-path %s",
1597 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1598 (void) CloneString(&clone_info->primitive,clip_path);
1599 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1601 if (clone_info->clip_mask != (
char *) NULL)
1602 clone_info->clip_mask=DestroyString(clone_info->clip_mask);
1603 (void) QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1605 clone_info->stroke_width=0.0;
1606 clone_info->opacity=OpaqueOpacity;
1607 clone_info->clip_path=MagickTrue;
1608 status=RenderMVGContent(clip_mask,clone_info,0);
1609 clone_info=DestroyDrawInfo(clone_info);
1610 status&=SeparateImageChannel(clip_mask,TrueAlphaChannel);
1611 if (draw_info->compliance != SVGCompliance)
1612 status&=NegateImage(clip_mask,MagickFalse);
1613 if (status == MagickFalse)
1614 clip_mask=DestroyImage(clip_mask);
1615 if (draw_info->debug != MagickFalse)
1616 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end clip-path");
1652 const char *
id,
const char *mask_path,
ExceptionInfo *exception)
1666 assert(image != (
Image *) NULL);
1667 assert(image->signature == MagickCoreSignature);
1668 assert(draw_info != (
const DrawInfo *) NULL);
1669 if (IsEventLogging() != MagickFalse)
1670 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
1671 composite_mask=AcquireImage((
const ImageInfo *) NULL);
1672 status=SetImageExtent(composite_mask,image->columns,image->rows);
1673 if (status == MagickFalse)
1674 return(DestroyImage(composite_mask));
1675 status=SetImageMask(image,(
Image *) NULL);
1676 status=QueryColorCompliance(
"#0000",AllCompliance,
1677 &composite_mask->background_color,exception);
1678 composite_mask->background_color.opacity=(Quantum) TransparentOpacity;
1679 (void) SetImageBackgroundColor(composite_mask);
1680 if (draw_info->debug != MagickFalse)
1681 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"\nbegin mask-path %s",
1683 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1684 (void) CloneString(&clone_info->primitive,mask_path);
1685 status=QueryColorCompliance(
"#ffffff",AllCompliance,&clone_info->fill,
1687 status=QueryColorCompliance(
"#00000000",AllCompliance,&clone_info->stroke,
1689 clone_info->stroke_width=0.0;
1690 clone_info->opacity=OpaqueOpacity;
1691 status=RenderMVGContent(composite_mask,clone_info,0);
1692 clone_info=DestroyDrawInfo(clone_info);
1693 status&=SeparateImageChannel(composite_mask,TrueAlphaChannel);
1694 status&=NegateImage(composite_mask,MagickFalse);
1695 if (status == MagickFalse)
1696 composite_mask=DestroyImage(composite_mask);
1697 if (draw_info->debug != MagickFalse)
1698 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end mask-path");
1699 return(composite_mask);
1731 static MagickBooleanType DrawDashPolygon(
const DrawInfo *draw_info,
1762 assert(draw_info != (
const DrawInfo *) NULL);
1763 if (draw_info->debug != MagickFalse)
1764 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-dash");
1765 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++) ;
1766 number_vertices=(size_t) i;
1767 dash_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
1768 (2UL*number_vertices+32UL),
sizeof(*dash_polygon));
1771 (void) ThrowMagickException(&image->exception,GetMagickModule(),
1772 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
1773 return(MagickFalse);
1775 (void) memset(dash_polygon,0,(2UL*number_vertices+32UL)*
1776 sizeof(*dash_polygon));
1777 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
1778 clone_info->miterlimit=0;
1779 dash_polygon[0]=primitive_info[0];
1780 scale=ExpandAffine(&draw_info->affine);
1781 length=scale*draw_info->dash_pattern[0];
1782 offset=fabs(draw_info->dash_offset) >= MagickEpsilon ?
1783 scale*draw_info->dash_offset : 0.0;
1785 for (n=0; offset > 0.0; j=0)
1787 if (draw_info->dash_pattern[n] <= 0.0)
1789 length=scale*(draw_info->dash_pattern[n]+(n == 0 ? -0.5 : 0.5));
1790 if (offset > length)
1794 length=scale*draw_info->dash_pattern[n];
1797 if (offset < length)
1809 for (i=1; (i < (ssize_t) number_vertices) && (length >= 0.0); i++)
1811 dx=primitive_info[i].point.x-primitive_info[i-1].point.x;
1812 dy=primitive_info[i].point.y-primitive_info[i-1].point.y;
1813 maximum_length=hypot(dx,dy);
1814 if (maximum_length > (
double) (MaxBezierCoordinates >> 2))
1816 if (fabs(length) < MagickEpsilon)
1818 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1820 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1822 length=scale*draw_info->dash_pattern[n];
1824 for (total_length=0.0; (length >= 0.0) && (maximum_length >= (total_length+length)); )
1826 total_length+=length;
1827 if ((n & 0x01) != 0)
1829 dash_polygon[0]=primitive_info[0];
1830 dash_polygon[0].point.x=(double) (primitive_info[i-1].point.x+dx*
1831 total_length*PerceptibleReciprocal(maximum_length));
1832 dash_polygon[0].point.y=(double) (primitive_info[i-1].point.y+dy*
1833 total_length*PerceptibleReciprocal(maximum_length));
1838 if ((j+1) > (ssize_t) number_vertices)
1840 dash_polygon[j]=primitive_info[i-1];
1841 dash_polygon[j].point.x=(double) (primitive_info[i-1].point.x+dx*
1842 total_length*PerceptibleReciprocal(maximum_length));
1843 dash_polygon[j].point.y=(double) (primitive_info[i-1].point.y+dy*
1844 total_length*PerceptibleReciprocal(maximum_length));
1845 dash_polygon[j].coordinates=1;
1847 dash_polygon[0].coordinates=(size_t) j;
1848 dash_polygon[j].primitive=UndefinedPrimitive;
1849 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1850 if (status == MagickFalse)
1853 if (fabs(draw_info->dash_pattern[n]) >= MagickEpsilon)
1855 if (fabs(draw_info->dash_pattern[n]) < MagickEpsilon)
1857 length=scale*draw_info->dash_pattern[n];
1859 length-=(maximum_length-total_length);
1860 if ((n & 0x01) != 0)
1862 dash_polygon[j]=primitive_info[i];
1863 dash_polygon[j].coordinates=1;
1866 if ((status != MagickFalse) && (total_length < maximum_length) &&
1867 ((n & 0x01) == 0) && (j > 1))
1869 dash_polygon[j]=primitive_info[i-1];
1870 dash_polygon[j].point.x+=MagickEpsilon;
1871 dash_polygon[j].point.y+=MagickEpsilon;
1872 dash_polygon[j].coordinates=1;
1874 dash_polygon[0].coordinates=(size_t) j;
1875 dash_polygon[j].primitive=UndefinedPrimitive;
1876 status&=DrawStrokePolygon(image,clone_info,dash_polygon);
1878 dash_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(dash_polygon);
1879 clone_info=DestroyDrawInfo(clone_info);
1880 if (draw_info->debug != MagickFalse)
1881 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-dash");
1882 return(status != 0 ? MagickTrue : MagickFalse);
1911 static inline double GetStopColorOffset(
const GradientInfo *gradient,
1912 const ssize_t x,
const ssize_t y)
1914 switch (gradient->type)
1916 case UndefinedGradient:
1917 case LinearGradient:
1932 gradient_vector=(&gradient->gradient_vector);
1933 p.x=gradient_vector->x2-gradient_vector->x1;
1934 p.y=gradient_vector->y2-gradient_vector->y1;
1935 q.x=(double) x-gradient_vector->x1;
1936 q.y=(
double) y-gradient_vector->y1;
1937 length=sqrt(q.x*q.x+q.y*q.y);
1938 gamma=sqrt(p.x*p.x+p.y*p.y)*length;
1939 gamma=PerceptibleReciprocal(gamma);
1940 scale=p.x*q.x+p.y*q.y;
1941 offset=gamma*scale*length;
1944 case RadialGradient:
1949 if (gradient->spread == RepeatSpread)
1951 v.x=(double) x-gradient->center.x;
1952 v.y=(
double) y-gradient->center.y;
1953 return(sqrt(v.x*v.x+v.y*v.y));
1955 v.x=(double) (((x-gradient->center.x)*cos(DegreesToRadians(
1956 gradient->angle)))+((y-gradient->center.y)*sin(DegreesToRadians(
1957 gradient->angle))))*PerceptibleReciprocal(gradient->radii.x);
1958 v.y=(double) (((x-gradient->center.x)*sin(DegreesToRadians(
1959 gradient->angle)))-((y-gradient->center.y)*cos(DegreesToRadians(
1960 gradient->angle))))*PerceptibleReciprocal(gradient->radii.y);
1961 return(sqrt(v.x*v.x+v.y*v.y));
1967 MagickExport MagickBooleanType DrawGradientImage(
Image *image,
2003 assert(image != (
Image *) NULL);
2004 assert(image->signature == MagickCoreSignature);
2005 assert(draw_info != (
const DrawInfo *) NULL);
2006 if (IsEventLogging() != MagickFalse)
2007 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2008 gradient=(&draw_info->gradient);
2009 gradient_vector=(&gradient->gradient_vector);
2010 point.x=gradient_vector->x2-gradient_vector->x1;
2011 point.y=gradient_vector->y2-gradient_vector->y1;
2012 length=sqrt(point.x*point.x+point.y*point.y);
2013 bounding_box=gradient->bounding_box;
2015 exception=(&image->exception);
2016 GetMagickPixelPacket(image,&zero);
2017 image_view=AcquireAuthenticCacheView(image,exception);
2018 #if defined(MAGICKCORE_OPENMP_SUPPORT)
2019 #pragma omp parallel for schedule(static) shared(status) \
2020 magick_number_threads(image,image,bounding_box.height-bounding_box.y,1)
2022 for (y=bounding_box.y; y < (ssize_t) bounding_box.height; y++)
2033 *magick_restrict indexes;
2045 if (status == MagickFalse)
2047 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
2053 indexes=GetCacheViewAuthenticIndexQueue(image_view);
2056 offset=GetStopColorOffset(gradient,0,y);
2057 if (gradient->type != RadialGradient)
2058 offset*=PerceptibleReciprocal(length);
2059 for (x=bounding_box.x; x < (ssize_t) bounding_box.width; x++)
2061 SetMagickPixelPacket(image,q,indexes+x,&pixel);
2062 switch (gradient->spread)
2064 case UndefinedSpread:
2067 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2068 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2070 offset=GetStopColorOffset(gradient,x,y);
2071 if (gradient->type != RadialGradient)
2072 offset*=PerceptibleReciprocal(length);
2074 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2075 if (offset < gradient->stops[i].offset)
2077 if ((offset < 0.0) || (i == 0))
2078 composite=gradient->stops[0].color;
2080 if ((offset > 1.0) || (i == (ssize_t) gradient->number_stops))
2081 composite=gradient->stops[gradient->number_stops-1].color;
2086 alpha=(offset-gradient->stops[i].offset)/
2087 (gradient->stops[j].offset-gradient->stops[i].offset);
2088 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2089 &gradient->stops[j].color,alpha,&composite);
2095 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2096 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2098 offset=GetStopColorOffset(gradient,x,y);
2099 if (gradient->type != RadialGradient)
2100 offset*=PerceptibleReciprocal(length);
2104 if ((ssize_t) fmod(offset,2.0) == 0)
2105 offset=fmod(offset,1.0);
2107 offset=1.0-fmod(offset,1.0);
2108 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2109 if (offset < gradient->stops[i].offset)
2112 composite=gradient->stops[0].color;
2114 if (i == (ssize_t) gradient->number_stops)
2115 composite=gradient->stops[gradient->number_stops-1].color;
2120 alpha=(offset-gradient->stops[i].offset)/
2121 (gradient->stops[j].offset-gradient->stops[i].offset);
2122 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2123 &gradient->stops[j].color,alpha,&composite);
2135 antialias=MagickFalse;
2137 if ((x != CastDoubleToLong(ceil(gradient_vector->x1-0.5))) ||
2138 (y != CastDoubleToLong(ceil(gradient_vector->y1-0.5))))
2140 offset=GetStopColorOffset(gradient,x,y);
2141 if (gradient->type == LinearGradient)
2143 repeat=fmod(offset,length);
2145 repeat=length-fmod(-repeat,length);
2147 repeat=fmod(offset,length);
2148 antialias=(repeat < length) && ((repeat+1.0) > length) ?
2149 MagickTrue : MagickFalse;
2150 offset=PerceptibleReciprocal(length)*repeat;
2154 repeat=fmod(offset,(
double) gradient->radius);
2156 repeat=gradient->radius-fmod(-repeat,
2157 (
double) gradient->radius);
2159 repeat=fmod(offset,(
double) gradient->radius);
2160 antialias=repeat+1.0 > gradient->radius ? MagickTrue :
2162 offset=repeat*PerceptibleReciprocal(gradient->radius);
2165 for (i=0; i < (ssize_t) gradient->number_stops; i++)
2166 if (offset < gradient->stops[i].offset)
2169 composite=gradient->stops[0].color;
2171 if (i == (ssize_t) gradient->number_stops)
2172 composite=gradient->stops[gradient->number_stops-1].color;
2177 alpha=(offset-gradient->stops[i].offset)/
2178 (gradient->stops[j].offset-gradient->stops[i].offset);
2179 if (antialias != MagickFalse)
2181 if (gradient->type == LinearGradient)
2182 alpha=length-repeat;
2184 alpha=gradient->radius-repeat;
2186 j=(ssize_t) gradient->number_stops-1L;
2188 MagickPixelCompositeBlend(&gradient->stops[i].color,1.0-alpha,
2189 &gradient->stops[j].color,alpha,&composite);
2194 MagickPixelCompositeOver(&composite,composite.opacity,&pixel,
2195 pixel.opacity,&pixel);
2196 SetPixelPacket(image,&pixel,q,indexes+x);
2199 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
2202 image_view=DestroyCacheView(image_view);
2235 static MagickBooleanType CheckPrimitiveExtent(
MVGInfo *mvg_info,
2239 **text = (
char **) NULL;
2253 quantum=
sizeof(**mvg_info->primitive_info);
2254 extent=(double) mvg_info->offset+pad+(PrimitiveExtentPad+1)*quantum;
2255 if (extent <= (
double) *mvg_info->extent)
2257 if ((extent >= (
double) MAGICK_SSIZE_MAX) || (IsNaN(extent) != 0))
2258 return(MagickFalse);
2259 if (mvg_info->offset > 0)
2261 text=(
char **) AcquireQuantumMemory(mvg_info->offset,
sizeof(*text));
2262 if (text == (
char **) NULL)
2263 return(MagickFalse);
2264 for (i=0; i < mvg_info->offset; i++)
2265 text[i]=(*mvg_info->primitive_info)[i].text;
2267 *mvg_info->primitive_info=(
PrimitiveInfo *) ResizeQuantumMemory(
2268 *mvg_info->primitive_info,(
size_t) (extent+1),quantum);
2271 if (text != (
char **) NULL)
2272 text=(
char **) RelinquishMagickMemory(text);
2273 *mvg_info->extent=(size_t) extent;
2274 for (i=mvg_info->offset+1; i <= (ssize_t) extent; i++)
2276 (*mvg_info->primitive_info)[i].primitive=UndefinedPrimitive;
2277 (*mvg_info->primitive_info)[i].text=(
char *) NULL;
2284 if (text != (
char **) NULL)
2286 for (i=0; i < mvg_info->offset; i++)
2287 if (text[i] != (
char *) NULL)
2288 text[i]=DestroyString(text[i]);
2289 text=(
char **) RelinquishMagickMemory(text);
2291 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
2292 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
2293 *mvg_info->primitive_info=(
PrimitiveInfo *) AcquireCriticalMemory((
size_t)
2294 (PrimitiveExtentPad+1)*quantum);
2295 (void) memset(*mvg_info->primitive_info,0,(
size_t) ((PrimitiveExtentPad+1)*
2297 *mvg_info->extent=1;
2299 return(MagickFalse);
2302 static inline double GetDrawValue(
const char *magick_restrict
string,
2303 char **magick_restrict sentinal)
2306 **magick_restrict q;
2312 value=InterpretLocaleValue(
string,q);
2317 static int MVGMacroCompare(
const void *target,
const void *source)
2323 p=(
const char *) target;
2324 q=(
const char *) source;
2325 return(strcmp(p,q));
2346 if (primitive == (
const char *) NULL)
2348 macros=NewSplayTree(MVGMacroCompare,RelinquishMagickMemory,
2349 RelinquishMagickMemory);
2350 macro=AcquireString(primitive);
2351 token=AcquireString(primitive);
2352 extent=strlen(token)+MagickPathExtent;
2353 for (q=primitive; *q !=
'\0'; )
2355 if (GetNextToken(q,&q,extent,token) < 1)
2359 if (LocaleCompare(
"push",token) == 0)
2365 (void) GetNextToken(q,&q,extent,token);
2369 name[MagickPathExtent];
2380 (void) GetNextToken(q,&q,extent,token);
2383 (void) CopyMagickString(name,token,MagickPathExtent);
2385 for (p=q; *p !=
'\0'; )
2387 if (GetNextToken(p,&p,extent,token) < 1)
2391 if (LocaleCompare(token,
"pop") == 0)
2393 end=p-strlen(token)-1;
2396 if (LocaleCompare(token,
"push") == 0)
2398 if ((n == 0) && (end > start))
2403 (void) GetNextToken(p,&p,extent,token);
2404 (void) CopyMagickString(macro,start,(
size_t) (end-start));
2405 (void) AddValueToSplayTree(macros,ConstantString(name),
2406 ConstantString(macro));
2413 token=DestroyString(token);
2414 macro=DestroyString(macro);
2418 static inline MagickBooleanType IsPoint(
const char *point)
2426 value=GetDrawValue(point,&p);
2427 return((fabs(value) < MagickEpsilon) && (p == point) ? MagickFalse :
2431 static inline MagickBooleanType TracePoint(
PrimitiveInfo *primitive_info,
2434 primitive_info->coordinates=1;
2435 primitive_info->closed_subpath=MagickFalse;
2436 primitive_info->point=point;
2440 static MagickBooleanType RenderMVGContent(
Image *image,
2441 const DrawInfo *draw_info,
const size_t depth)
2443 #define RenderImageTag "Render/Image"
2450 key[2*MaxTextExtent],
2451 keyword[MaxTextExtent],
2452 geometry[MaxTextExtent],
2453 name[MaxTextExtent],
2455 pattern[MaxTextExtent],
2521 assert(image != (
Image *) NULL);
2522 assert(image->signature == MagickCoreSignature);
2523 assert(draw_info != (
DrawInfo *) NULL);
2524 assert(draw_info->signature == MagickCoreSignature);
2525 if (IsEventLogging() != MagickFalse)
2526 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
2527 if (depth > MagickMaxRecursionDepth)
2528 ThrowBinaryImageException(DrawError,
"VectorGraphicsNestedTooDeeply",
2530 if ((draw_info->primitive == (
char *) NULL) ||
2531 (*draw_info->primitive ==
'\0'))
2532 return(MagickFalse);
2533 if (draw_info->debug != MagickFalse)
2534 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"begin draw-image");
2535 if (SetImageStorageClass(image,DirectClass) == MagickFalse)
2536 return(MagickFalse);
2537 if (image->matte == MagickFalse)
2539 status=SetImageAlphaChannel(image,OpaqueAlphaChannel);
2540 if (status == MagickFalse)
2541 return(MagickFalse);
2543 primitive=(
char *) NULL;
2544 if ((*draw_info->primitive ==
'@') && (strlen(draw_info->primitive) > 1) &&
2545 (*(draw_info->primitive+1) !=
'-') && (depth == 0))
2546 primitive=FileToString(draw_info->primitive+1,~0UL,&image->exception);
2548 primitive=AcquireString(draw_info->primitive);
2549 if (primitive == (
char *) NULL)
2550 return(MagickFalse);
2551 primitive_extent=(double) strlen(primitive);
2552 (void) SetImageArtifact(image,
"mvg:vector-graphics",primitive);
2557 graphic_context=(
DrawInfo **) AcquireMagickMemory(
sizeof(*graphic_context));
2558 if (graphic_context == (
DrawInfo **) NULL)
2560 primitive=DestroyString(primitive);
2561 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2564 number_points=(size_t) PrimitiveExtentPad;
2565 primitive_info=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
2566 (number_points+1),
sizeof(*primitive_info));
2569 primitive=DestroyString(primitive);
2570 for ( ; n >= 0; n--)
2571 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
2572 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
2573 ThrowBinaryImageException(ResourceLimitError,
"MemoryAllocationFailed",
2576 (void) memset(primitive_info,0,(
size_t) (number_points+1)*
2577 sizeof(*primitive_info));
2578 (void) memset(&mvg_info,0,
sizeof(mvg_info));
2579 mvg_info.primitive_info=(&primitive_info);
2580 mvg_info.extent=(&number_points);
2581 mvg_info.exception=(&image->exception);
2582 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
2583 graphic_context[n]->viewbox=image->page;
2584 if ((image->page.width == 0) || (image->page.height == 0))
2586 graphic_context[n]->viewbox.width=image->columns;
2587 graphic_context[n]->viewbox.height=image->rows;
2589 token=AcquireString(primitive);
2590 extent=strlen(token)+MaxTextExtent;
2594 macros=GetMVGMacros(primitive);
2595 status=QueryColorDatabase(
"#000000",&start_color,&image->exception);
2596 for (q=primitive; *q !=
'\0'; )
2601 if (GetNextToken(q,&q,MaxTextExtent,keyword) < 1)
2603 if (*keyword ==
'\0')
2605 if (*keyword ==
'#')
2610 while ((*q !=
'\n') && (*q !=
'\0'))
2614 p=q-strlen(keyword)-1;
2615 primitive_type=UndefinedPrimitive;
2616 current=graphic_context[n]->affine;
2617 GetAffineMatrix(&affine);
2626 if (LocaleCompare(
"affine",keyword) == 0)
2628 (void) GetNextToken(q,&q,extent,token);
2629 affine.sx=GetDrawValue(token,&next_token);
2630 if (token == next_token)
2631 ThrowPointExpectedException(image,token);
2632 (void) GetNextToken(q,&q,extent,token);
2634 (void) GetNextToken(q,&q,extent,token);
2635 affine.rx=GetDrawValue(token,&next_token);
2636 if (token == next_token)
2637 ThrowPointExpectedException(image,token);
2638 (void) GetNextToken(q,&q,extent,token);
2640 (void) GetNextToken(q,&q,extent,token);
2641 affine.ry=GetDrawValue(token,&next_token);
2642 if (token == next_token)
2643 ThrowPointExpectedException(image,token);
2644 (void) GetNextToken(q,&q,extent,token);
2646 (void) GetNextToken(q,&q,extent,token);
2647 affine.sy=GetDrawValue(token,&next_token);
2648 if (token == next_token)
2649 ThrowPointExpectedException(image,token);
2650 (void) GetNextToken(q,&q,extent,token);
2652 (void) GetNextToken(q,&q,extent,token);
2653 affine.tx=GetDrawValue(token,&next_token);
2654 if (token == next_token)
2655 ThrowPointExpectedException(image,token);
2656 (void) GetNextToken(q,&q,extent,token);
2658 (void) GetNextToken(q,&q,extent,token);
2659 affine.ty=GetDrawValue(token,&next_token);
2660 if (token == next_token)
2661 ThrowPointExpectedException(image,token);
2664 if (LocaleCompare(
"arc",keyword) == 0)
2666 primitive_type=ArcPrimitive;
2675 if (LocaleCompare(
"bezier",keyword) == 0)
2677 primitive_type=BezierPrimitive;
2680 if (LocaleCompare(
"border-color",keyword) == 0)
2682 (void) GetNextToken(q,&q,extent,token);
2683 status&=QueryColorDatabase(token,&graphic_context[n]->border_color,
2693 if (LocaleCompare(
"class",keyword) == 0)
2698 (void) GetNextToken(q,&q,extent,token);
2704 if (LocaleCompare(token,graphic_context[n]->
id) == 0)
2706 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2707 if ((graphic_context[n]->render != MagickFalse) &&
2708 (mvg_class != (
const char *) NULL) && (p > primitive))
2719 offset=(ssize_t) (p-primitive);
2720 elements=AcquireString(primitive);
2721 elements[offset]=
'\0';
2722 (void) ConcatenateString(&elements,mvg_class);
2723 (void) ConcatenateString(&elements,
"\n");
2724 (void) ConcatenateString(&elements,q);
2725 primitive=DestroyString(primitive);
2731 if (LocaleCompare(
"clip-path",keyword) == 0)
2739 (void) GetNextToken(q,&q,extent,token);
2745 (void) CloneString(&graphic_context[n]->clip_mask,token);
2746 clip_path=(
const char *) GetValueFromSplayTree(macros,token);
2747 if (clip_path != (
const char *) NULL)
2749 if (graphic_context[n]->clipping_mask != (
Image *) NULL)
2750 graphic_context[n]->clipping_mask=
2751 DestroyImage(graphic_context[n]->clipping_mask);
2752 graphic_context[n]->clipping_mask=DrawClippingMask(image,
2753 graphic_context[n],token,clip_path,&image->exception);
2754 if (graphic_context[n]->compliance != SVGCompliance)
2759 clip_path=(
const char *) GetValueFromSplayTree(macros,
2760 graphic_context[n]->clip_mask);
2761 if (clip_path != (
const char *) NULL)
2762 (
void) SetImageArtifact(image,
2763 graphic_context[n]->clip_mask,clip_path);
2764 status&=DrawClipPath(image,graphic_context[n],
2765 graphic_context[n]->clip_mask);
2770 if (LocaleCompare(
"clip-rule",keyword) == 0)
2775 (void) GetNextToken(q,&q,extent,token);
2776 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2778 if (fill_rule == -1)
2783 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2786 if (LocaleCompare(
"clip-units",keyword) == 0)
2791 (void) GetNextToken(q,&q,extent,token);
2792 clip_units=ParseCommandOption(MagickClipPathOptions,MagickFalse,
2794 if (clip_units == -1)
2799 graphic_context[n]->clip_units=(ClipPathUnits) clip_units;
2800 if (clip_units == ObjectBoundingBox)
2802 GetAffineMatrix(¤t);
2803 affine.sx=draw_info->bounds.x2;
2804 affine.sy=draw_info->bounds.y2;
2805 affine.tx=draw_info->bounds.x1;
2806 affine.ty=draw_info->bounds.y1;
2811 if (LocaleCompare(
"circle",keyword) == 0)
2813 primitive_type=CirclePrimitive;
2816 if (LocaleCompare(
"color",keyword) == 0)
2818 primitive_type=ColorPrimitive;
2821 if (LocaleCompare(
"compliance",keyword) == 0)
2827 (void) GetNextToken(q,&q,extent,token);
2828 graphic_context[n]->compliance=(ComplianceType) ParseCommandOption(
2829 MagickComplianceOptions,MagickFalse,token);
2832 if (LocaleCompare(
"currentColor",keyword) == 0)
2834 (void) GetNextToken(q,&q,extent,token);
2843 if (LocaleCompare(
"decorate",keyword) == 0)
2848 (void) GetNextToken(q,&q,extent,token);
2849 decorate=ParseCommandOption(MagickDecorateOptions,MagickFalse,
2856 graphic_context[n]->decorate=(DecorationType) decorate;
2859 if (LocaleCompare(
"density",keyword) == 0)
2861 (void) GetNextToken(q,&q,extent,token);
2862 (void) CloneString(&graphic_context[n]->density,token);
2865 if (LocaleCompare(
"direction",keyword) == 0)
2870 (void) GetNextToken(q,&q,extent,token);
2871 direction=ParseCommandOption(MagickDirectionOptions,MagickFalse,
2873 if (direction == -1)
2876 graphic_context[n]->direction=(DirectionType) direction;
2885 if (LocaleCompare(
"ellipse",keyword) == 0)
2887 primitive_type=EllipsePrimitive;
2890 if (LocaleCompare(
"encoding",keyword) == 0)
2892 (void) GetNextToken(q,&q,extent,token);
2893 (void) CloneString(&graphic_context[n]->encoding,token);
2902 if (LocaleCompare(
"fill",keyword) == 0)
2907 (void) GetNextToken(q,&q,extent,token);
2908 if (graphic_context[n]->clip_path != MagickFalse)
2910 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
2911 if (mvg_class != (
const char *) NULL)
2913 (void) DrawPatternPath(image,draw_info,mvg_class,
2914 &graphic_context[n]->fill_pattern);
2917 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
2918 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
2920 (void) DrawPatternPath(image,draw_info,token,
2921 &graphic_context[n]->fill_pattern);
2924 status&=QueryColorDatabase(token,&graphic_context[n]->fill,
2926 if (graphic_context[n]->fill_opacity != OpaqueOpacity)
2927 graphic_context[n]->fill.opacity=ClampToQuantum(
2928 graphic_context[n]->fill_opacity);
2931 if (LocaleCompare(
"fill-opacity",keyword) == 0)
2936 (void) GetNextToken(q,&q,extent,token);
2937 if (graphic_context[n]->clip_path != MagickFalse)
2939 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
2940 opacity=MagickMin(MagickMax(factor*
2941 GetDrawValue(token,&next_token),0.0),1.0);
2942 if (token == next_token)
2943 ThrowPointExpectedException(image,token);
2944 if (graphic_context[n]->compliance == SVGCompliance)
2945 graphic_context[n]->fill_opacity*=(1.0-opacity);
2947 graphic_context[n]->fill_opacity=(QuantumRange-
2948 graphic_context[n]->fill_opacity)*(1.0-opacity);
2949 if (graphic_context[n]->fill.opacity != TransparentOpacity)
2950 graphic_context[n]->fill.opacity=(Quantum)
2951 graphic_context[n]->fill_opacity;
2953 graphic_context[n]->fill.opacity=ClampToQuantum(QuantumRange*
2957 if (LocaleCompare(
"fill-rule",keyword) == 0)
2962 (void) GetNextToken(q,&q,extent,token);
2963 fill_rule=ParseCommandOption(MagickFillRuleOptions,MagickFalse,
2965 if (fill_rule == -1)
2970 graphic_context[n]->fill_rule=(FillRule) fill_rule;
2973 if (LocaleCompare(
"font",keyword) == 0)
2975 (void) GetNextToken(q,&q,extent,token);
2976 (void) CloneString(&graphic_context[n]->font,token);
2977 if (LocaleCompare(
"none",token) == 0)
2978 graphic_context[n]->font=(
char *) RelinquishMagickMemory(
2979 graphic_context[n]->font);
2982 if (LocaleCompare(
"font-family",keyword) == 0)
2984 (void) GetNextToken(q,&q,extent,token);
2985 (void) CloneString(&graphic_context[n]->family,token);
2988 if (LocaleCompare(
"font-size",keyword) == 0)
2990 (void) GetNextToken(q,&q,extent,token);
2991 graphic_context[n]->pointsize=GetDrawValue(token,&next_token);
2992 if (token == next_token)
2993 ThrowPointExpectedException(image,token);
2996 if (LocaleCompare(
"font-stretch",keyword) == 0)
3001 (void) GetNextToken(q,&q,extent,token);
3002 stretch=ParseCommandOption(MagickStretchOptions,MagickFalse,token);
3008 graphic_context[n]->stretch=(StretchType) stretch;
3011 if (LocaleCompare(
"font-style",keyword) == 0)
3016 (void) GetNextToken(q,&q,extent,token);
3017 style=ParseCommandOption(MagickStyleOptions,MagickFalse,token);
3023 graphic_context[n]->style=(StyleType) style;
3026 if (LocaleCompare(
"font-weight",keyword) == 0)
3031 (void) GetNextToken(q,&q,extent,token);
3032 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,token);
3034 weight=(ssize_t) StringToUnsignedLong(token);
3035 graphic_context[n]->weight=(size_t) weight;
3044 if (LocaleCompare(
"gradient-units",keyword) == 0)
3046 (void) GetNextToken(q,&q,extent,token);
3049 if (LocaleCompare(
"gravity",keyword) == 0)
3054 (void) GetNextToken(q,&q,extent,token);
3055 gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,token);
3061 graphic_context[n]->gravity=(GravityType) gravity;
3070 if (LocaleCompare(
"image",keyword) == 0)
3075 primitive_type=ImagePrimitive;
3076 (void) GetNextToken(q,&q,extent,token);
3077 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,token);
3083 graphic_context[n]->compose=(CompositeOperator) compose;
3086 if (LocaleCompare(
"interline-spacing",keyword) == 0)
3088 (void) GetNextToken(q,&q,extent,token);
3089 graphic_context[n]->interline_spacing=GetDrawValue(token,
3091 if (token == next_token)
3092 ThrowPointExpectedException(image,token);
3095 if (LocaleCompare(
"interword-spacing",keyword) == 0)
3097 (void) GetNextToken(q,&q,extent,token);
3098 graphic_context[n]->interword_spacing=GetDrawValue(token,
3100 if (token == next_token)
3101 ThrowPointExpectedException(image,token);
3110 if (LocaleCompare(
"kerning",keyword) == 0)
3112 (void) GetNextToken(q,&q,extent,token);
3113 graphic_context[n]->kerning=GetDrawValue(token,&next_token);
3114 if (token == next_token)
3115 ThrowPointExpectedException(image,token);
3124 if (LocaleCompare(
"letter-spacing",keyword) == 0)
3126 (void) GetNextToken(q,&q,extent,token);
3127 if (IsPoint(token) == MagickFalse)
3129 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3130 clone_info->text=AcquireString(
" ");
3131 status&=GetTypeMetrics(image,clone_info,&metrics);
3132 graphic_context[n]->kerning=metrics.width*
3133 GetDrawValue(token,&next_token);
3134 clone_info=DestroyDrawInfo(clone_info);
3135 if (token == next_token)
3136 ThrowPointExpectedException(image,token);
3139 if (LocaleCompare(
"line",keyword) == 0)
3141 primitive_type=LinePrimitive;
3150 if (LocaleCompare(
"mask",keyword) == 0)
3158 (void) GetNextToken(q,&q,extent,token);
3159 mask_path=(
const char *) GetValueFromSplayTree(macros,token);
3160 if (mask_path != (
const char *) NULL)
3162 if (graphic_context[n]->composite_mask != (
Image *) NULL)
3163 graphic_context[n]->composite_mask=
3164 DestroyImage(graphic_context[n]->composite_mask);
3165 graphic_context[n]->composite_mask=DrawCompositeMask(image,
3166 graphic_context[n],token,mask_path,&image->exception);
3167 if (graphic_context[n]->compliance != SVGCompliance)
3168 status=SetImageMask(image,graphic_context[n]->composite_mask);
3172 if (LocaleCompare(
"matte",keyword) == 0)
3174 primitive_type=MattePrimitive;
3183 if (LocaleCompare(
"offset",keyword) == 0)
3185 (void) GetNextToken(q,&q,extent,token);
3188 if (LocaleCompare(
"opacity",keyword) == 0)
3193 (void) GetNextToken(q,&q,extent,token);
3194 if (graphic_context[n]->clip_path != MagickFalse)
3196 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3197 opacity=MagickMin(MagickMax(factor*
3198 GetDrawValue(token,&next_token),0.0),1.0);
3199 if (token == next_token)
3200 ThrowPointExpectedException(image,token);
3201 if (graphic_context[n]->compliance == SVGCompliance)
3203 graphic_context[n]->fill_opacity*=(1.0-opacity);
3204 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3208 graphic_context[n]->fill_opacity=(QuantumRange-
3209 graphic_context[n]->fill_opacity)*(1.0-opacity);
3210 graphic_context[n]->stroke_opacity=(QuantumRange-
3211 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3221 if (LocaleCompare(
"path",keyword) == 0)
3223 primitive_type=PathPrimitive;
3226 if (LocaleCompare(
"point",keyword) == 0)
3228 primitive_type=PointPrimitive;
3231 if (LocaleCompare(
"polyline",keyword) == 0)
3233 primitive_type=PolylinePrimitive;
3236 if (LocaleCompare(
"polygon",keyword) == 0)
3238 primitive_type=PolygonPrimitive;
3241 if (LocaleCompare(
"pop",keyword) == 0)
3243 if (GetNextToken(q,&q,extent,token) < 1)
3245 if (LocaleCompare(
"class",token) == 0)
3247 if (LocaleCompare(
"clip-path",token) == 0)
3249 if (LocaleCompare(
"defs",token) == 0)
3252 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3256 if (LocaleCompare(
"gradient",token) == 0)
3258 if (LocaleCompare(
"graphic-context",token) == 0)
3262 (void) ThrowMagickException(&image->exception,
3263 GetMagickModule(),DrawError,
3264 "UnbalancedGraphicContextPushPop",
"`%s'",token);
3269 if ((graphic_context[n]->clip_mask != (
char *) NULL) &&
3270 (graphic_context[n]->compliance != SVGCompliance))
3271 if (LocaleCompare(graphic_context[n]->clip_mask,
3272 graphic_context[n-1]->clip_mask) != 0)
3273 status=SetImageClipMask(image,(
Image *) NULL);
3274 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
3278 if (LocaleCompare(
"mask",token) == 0)
3280 if (LocaleCompare(
"pattern",token) == 0)
3282 if (LocaleCompare(
"symbol",token) == 0)
3285 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3292 if (LocaleCompare(
"push",keyword) == 0)
3294 if (GetNextToken(q,&q,extent,token) < 1)
3296 if (LocaleCompare(
"class",token) == 0)
3301 for (p=q; *q !=
'\0'; )
3303 if (GetNextToken(q,&q,extent,token) < 1)
3305 if (LocaleCompare(token,
"pop") != 0)
3307 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3308 if (LocaleCompare(token,
"class") != 0)
3312 (void) GetNextToken(q,&q,extent,token);
3315 if (LocaleCompare(
"clip-path",token) == 0)
3317 (void) GetNextToken(q,&q,extent,token);
3318 for (p=q; *q !=
'\0'; )
3320 if (GetNextToken(q,&q,extent,token) < 1)
3322 if (LocaleCompare(token,
"pop") != 0)
3324 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3325 if (LocaleCompare(token,
"clip-path") != 0)
3329 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3334 (void) GetNextToken(q,&q,extent,token);
3337 if (LocaleCompare(
"defs",token) == 0)
3340 graphic_context[n]->render=defsDepth > 0 ? MagickFalse :
3344 if (LocaleCompare(
"gradient",token) == 0)
3347 key[2*MaxTextExtent],
3348 name[MaxTextExtent],
3349 type[MaxTextExtent];
3354 (void) GetNextToken(q,&q,extent,token);
3355 (void) CopyMagickString(name,token,MaxTextExtent);
3356 (void) GetNextToken(q,&q,extent,token);
3357 (void) CopyMagickString(type,token,MaxTextExtent);
3358 (void) GetNextToken(q,&q,extent,token);
3359 segment.x1=GetDrawValue(token,&next_token);
3360 if (token == next_token)
3361 ThrowPointExpectedException(image,token);
3362 (void) GetNextToken(q,&q,extent,token);
3364 (void) GetNextToken(q,&q,extent,token);
3365 segment.y1=GetDrawValue(token,&next_token);
3366 if (token == next_token)
3367 ThrowPointExpectedException(image,token);
3368 (void) GetNextToken(q,&q,extent,token);
3370 (void) GetNextToken(q,&q,extent,token);
3371 segment.x2=GetDrawValue(token,&next_token);
3372 if (token == next_token)
3373 ThrowPointExpectedException(image,token);
3374 (void) GetNextToken(q,&q,extent,token);
3376 (void) GetNextToken(q,&q,extent,token);
3377 segment.y2=GetDrawValue(token,&next_token);
3378 if (token == next_token)
3379 ThrowPointExpectedException(image,token);
3380 if (LocaleCompare(type,
"radial") == 0)
3382 (void) GetNextToken(q,&q,extent,token);
3384 (void) GetNextToken(q,&q,extent,token);
3386 for (p=q; *q !=
'\0'; )
3388 if (GetNextToken(q,&q,extent,token) < 1)
3390 if (LocaleCompare(token,
"pop") != 0)
3392 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3393 if (LocaleCompare(token,
"gradient") != 0)
3397 if ((q == (
char *) NULL) || (*q ==
'\0') ||
3398 (p == (
char *) NULL) || ((q-4) < p))
3403 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3404 bounds.x1=graphic_context[n]->affine.sx*segment.x1+
3405 graphic_context[n]->affine.ry*segment.y1+
3406 graphic_context[n]->affine.tx;
3407 bounds.y1=graphic_context[n]->affine.rx*segment.x1+
3408 graphic_context[n]->affine.sy*segment.y1+
3409 graphic_context[n]->affine.ty;
3410 bounds.x2=graphic_context[n]->affine.sx*segment.x2+
3411 graphic_context[n]->affine.ry*segment.y2+
3412 graphic_context[n]->affine.tx;
3413 bounds.y2=graphic_context[n]->affine.rx*segment.x2+
3414 graphic_context[n]->affine.sy*segment.y2+
3415 graphic_context[n]->affine.ty;
3416 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3417 (void) SetImageArtifact(image,key,token);
3418 (void) FormatLocaleString(key,MaxTextExtent,
"%s-type",name);
3419 (void) SetImageArtifact(image,key,type);
3420 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3421 (void) FormatLocaleString(geometry,MaxTextExtent,
3422 "%gx%g%+.15g%+.15g",
3423 MagickMax(fabs(bounds.x2-bounds.x1+1.0),1.0),
3424 MagickMax(fabs(bounds.y2-bounds.y1+1.0),1.0),
3425 bounds.x1,bounds.y1);
3426 (void) SetImageArtifact(image,key,geometry);
3427 (void) GetNextToken(q,&q,extent,token);
3430 if (LocaleCompare(
"graphic-context",token) == 0)
3433 graphic_context=(
DrawInfo **) ResizeQuantumMemory(
3434 graphic_context,(
size_t) (n+1),
sizeof(*graphic_context));
3435 if (graphic_context == (
DrawInfo **) NULL)
3437 (void) ThrowMagickException(&image->exception,
3438 GetMagickModule(),ResourceLimitError,
3439 "MemoryAllocationFailed",
"`%s'",image->filename);
3442 graphic_context[n]=CloneDrawInfo((
ImageInfo *) NULL,
3443 graphic_context[n-1]);
3446 (void) GetNextToken(q,&q,extent,token);
3447 (void) CloneString(&graphic_context[n]->
id,token);
3451 if (LocaleCompare(
"mask",token) == 0)
3453 (void) GetNextToken(q,&q,extent,token);
3456 if (LocaleCompare(
"pattern",token) == 0)
3461 (void) GetNextToken(q,&q,extent,token);
3462 (void) CopyMagickString(name,token,MaxTextExtent);
3463 (void) GetNextToken(q,&q,extent,token);
3464 bounds.x=CastDoubleToLong(ceil(GetDrawValue(token,
3466 if (token == next_token)
3467 ThrowPointExpectedException(image,token);
3468 (void) GetNextToken(q,&q,extent,token);
3470 (void) GetNextToken(q,&q,extent,token);
3471 bounds.y=CastDoubleToLong(ceil(GetDrawValue(token,
3473 if (token == next_token)
3474 ThrowPointExpectedException(image,token);
3475 (void) GetNextToken(q,&q,extent,token);
3477 (void) GetNextToken(q,&q,extent,token);
3478 bounds.width=(size_t) floor(GetDrawValue(token,&next_token)+
3480 if (token == next_token)
3481 ThrowPointExpectedException(image,token);
3482 (void) GetNextToken(q,&q,extent,token);
3484 (void) GetNextToken(q,&q,extent,token);
3485 bounds.height=(size_t) floor(GetDrawValue(token,&next_token)+
3487 if (token == next_token)
3488 ThrowPointExpectedException(image,token);
3489 for (p=q; *q !=
'\0'; )
3491 if (GetNextToken(q,&q,extent,token) < 1)
3493 if (LocaleCompare(token,
"pop") != 0)
3495 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3496 if (LocaleCompare(token,
"pattern") != 0)
3500 if ((q == (
char *) NULL) || (p == (
char *) NULL) || ((q-4) < p))
3505 (void) CopyMagickString(token,p,(
size_t) (q-p-4+1));
3506 (void) FormatLocaleString(key,MaxTextExtent,
"%s",name);
3507 (void) SetImageArtifact(image,key,token);
3508 (void) FormatLocaleString(key,MaxTextExtent,
"%s-geometry",name);
3509 (void) FormatLocaleString(geometry,MaxTextExtent,
3510 "%.20gx%.20g%+.20g%+.20g",(
double) bounds.width,(double)
3511 bounds.height,(
double) bounds.x,(double) bounds.y);
3512 (void) SetImageArtifact(image,key,geometry);
3513 (void) GetNextToken(q,&q,extent,token);
3516 if (LocaleCompare(
"symbol",token) == 0)
3519 graphic_context[n]->render=symbolDepth > 0 ? MagickFalse :
3532 if (LocaleCompare(
"rectangle",keyword) == 0)
3534 primitive_type=RectanglePrimitive;
3537 if (LocaleCompare(
"rotate",keyword) == 0)
3539 (void) GetNextToken(q,&q,extent,token);
3540 angle=GetDrawValue(token,&next_token);
3541 if (token == next_token)
3542 ThrowPointExpectedException(image,token);
3543 affine.sx=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3544 affine.rx=sin(DegreesToRadians(fmod((
double) angle,360.0)));
3545 affine.ry=(-sin(DegreesToRadians(fmod((
double) angle,360.0))));
3546 affine.sy=cos(DegreesToRadians(fmod((
double) angle,360.0)));
3549 if (LocaleCompare(
"roundRectangle",keyword) == 0)
3551 primitive_type=RoundRectanglePrimitive;
3560 if (LocaleCompare(
"scale",keyword) == 0)
3562 (void) GetNextToken(q,&q,extent,token);
3563 affine.sx=GetDrawValue(token,&next_token);
3564 if (token == next_token)
3565 ThrowPointExpectedException(image,token);
3566 (void) GetNextToken(q,&q,extent,token);
3568 (void) GetNextToken(q,&q,extent,token);
3569 affine.sy=GetDrawValue(token,&next_token);
3570 if (token == next_token)
3571 ThrowPointExpectedException(image,token);
3574 if (LocaleCompare(
"skewX",keyword) == 0)
3576 (void) GetNextToken(q,&q,extent,token);
3577 angle=GetDrawValue(token,&next_token);
3578 if (token == next_token)
3579 ThrowPointExpectedException(image,token);
3580 affine.ry=sin(DegreesToRadians(angle));
3583 if (LocaleCompare(
"skewY",keyword) == 0)
3585 (void) GetNextToken(q,&q,extent,token);
3586 angle=GetDrawValue(token,&next_token);
3587 if (token == next_token)
3588 ThrowPointExpectedException(image,token);
3589 affine.rx=(-tan(DegreesToRadians(angle)/2.0));
3592 if (LocaleCompare(
"stop-color",keyword) == 0)
3600 (void) GetNextToken(q,&q,extent,token);
3601 status&=QueryColorDatabase(token,&stop_color,&image->exception);
3602 type=LinearGradient;
3603 if (draw_info->gradient.type == RadialGradient)
3604 type=RadialGradient;
3605 (void) GradientImage(image,type,PadSpread,&start_color,&stop_color);
3606 start_color=stop_color;
3607 (void) GetNextToken(q,&q,extent,token);
3610 if (LocaleCompare(
"stroke",keyword) == 0)
3615 (void) GetNextToken(q,&q,extent,token);
3616 if (graphic_context[n]->clip_path != MagickFalse)
3618 mvg_class=(
const char *) GetValueFromSplayTree(macros,token);
3619 if (mvg_class != (
const char *) NULL)
3621 (void) DrawPatternPath(image,draw_info,mvg_class,
3622 &graphic_context[n]->stroke_pattern);
3625 (void) FormatLocaleString(pattern,MaxTextExtent,
"%s",token);
3626 if (GetImageArtifact(image,pattern) != (
const char *) NULL)
3628 (void) DrawPatternPath(image,draw_info,token,
3629 &graphic_context[n]->stroke_pattern);
3632 status&=QueryColorDatabase(token,&graphic_context[n]->stroke,
3634 if (graphic_context[n]->stroke_opacity != OpaqueOpacity)
3635 graphic_context[n]->stroke.opacity=ClampToQuantum(
3636 graphic_context[n]->stroke_opacity);
3639 if (LocaleCompare(
"stroke-antialias",keyword) == 0)
3641 (void) GetNextToken(q,&q,extent,token);
3642 graphic_context[n]->stroke_antialias=StringToLong(token) != 0 ?
3643 MagickTrue : MagickFalse;
3646 if (LocaleCompare(
"stroke-dasharray",keyword) == 0)
3648 if (graphic_context[n]->dash_pattern != (
double *) NULL)
3649 graphic_context[n]->dash_pattern=(
double *)
3650 RelinquishMagickMemory(graphic_context[n]->dash_pattern);
3651 if (IsPoint(q) != MagickFalse)
3657 (void) GetNextToken(p,&p,extent,token);
3659 (void) GetNextToken(p,&p,extent,token);
3660 for (x=0; IsPoint(token) != MagickFalse; x++)
3662 (void) GetNextToken(p,&p,extent,token);
3664 (void) GetNextToken(p,&p,extent,token);
3666 graphic_context[n]->dash_pattern=(
double *)
3667 AcquireQuantumMemory((
size_t) (2*x+2),
3668 sizeof(*graphic_context[n]->dash_pattern));
3669 if (graphic_context[n]->dash_pattern == (
double *) NULL)
3671 (void) ThrowMagickException(&image->exception,
3672 GetMagickModule(),ResourceLimitError,
3673 "MemoryAllocationFailed",
"`%s'",image->filename);
3677 (void) memset(graphic_context[n]->dash_pattern,0,(
size_t)
3678 (2*x+2)*
sizeof(*graphic_context[n]->dash_pattern));
3679 for (j=0; j < x; j++)
3681 (void) GetNextToken(q,&q,extent,token);
3683 (void) GetNextToken(q,&q,extent,token);
3684 graphic_context[n]->dash_pattern[j]=GetDrawValue(token,
3686 if (token == next_token)
3687 ThrowPointExpectedException(image,token);
3688 if (graphic_context[n]->dash_pattern[j] <= 0.0)
3691 if ((x & 0x01) != 0)
3692 for ( ; j < (2*x); j++)
3693 graphic_context[n]->dash_pattern[j]=
3694 graphic_context[n]->dash_pattern[j-x];
3695 graphic_context[n]->dash_pattern[j]=0.0;
3698 (void) GetNextToken(q,&q,extent,token);
3701 if (LocaleCompare(
"stroke-dashoffset",keyword) == 0)
3703 (void) GetNextToken(q,&q,extent,token);
3704 graphic_context[n]->dash_offset=GetDrawValue(token,&next_token);
3705 if (token == next_token)
3706 ThrowPointExpectedException(image,token);
3709 if (LocaleCompare(
"stroke-linecap",keyword) == 0)
3714 (void) GetNextToken(q,&q,extent,token);
3715 linecap=ParseCommandOption(MagickLineCapOptions,MagickFalse,token);
3721 graphic_context[n]->linecap=(LineCap) linecap;
3724 if (LocaleCompare(
"stroke-linejoin",keyword) == 0)
3729 (void) GetNextToken(q,&q,extent,token);
3730 linejoin=ParseCommandOption(MagickLineJoinOptions,MagickFalse,
3737 graphic_context[n]->linejoin=(LineJoin) linejoin;
3740 if (LocaleCompare(
"stroke-miterlimit",keyword) == 0)
3742 (void) GetNextToken(q,&q,extent,token);
3743 graphic_context[n]->miterlimit=StringToUnsignedLong(token);
3746 if (LocaleCompare(
"stroke-opacity",keyword) == 0)
3751 (void) GetNextToken(q,&q,extent,token);
3752 if (graphic_context[n]->clip_path != MagickFalse)
3754 factor=strchr(token,
'%') != (
char *) NULL ? 0.01 : 1.0;
3755 opacity=MagickMin(MagickMax(factor*
3756 GetDrawValue(token,&next_token),0.0),1.0);
3757 if (token == next_token)
3758 ThrowPointExpectedException(image,token);
3759 if (graphic_context[n]->compliance == SVGCompliance)
3760 graphic_context[n]->stroke_opacity*=(1.0-opacity);
3762 graphic_context[n]->stroke_opacity=(QuantumRange-
3763 graphic_context[n]->stroke_opacity)*(1.0-opacity);
3764 if (graphic_context[n]->stroke.opacity != TransparentOpacity)
3765 graphic_context[n]->stroke.opacity=(Quantum)
3766 graphic_context[n]->stroke_opacity;
3768 graphic_context[n]->stroke.opacity=ClampToQuantum(QuantumRange*
3772 if (LocaleCompare(
"stroke-width",keyword) == 0)
3774 (void) GetNextToken(q,&q,extent,token);
3775 if (graphic_context[n]->clip_path != MagickFalse)
3777 graphic_context[n]->stroke_width=GetDrawValue(token,&next_token);
3778 if (token == next_token)
3779 ThrowPointExpectedException(image,token);
3788 if (LocaleCompare(
"text",keyword) == 0)
3790 primitive_type=TextPrimitive;
3794 if (LocaleCompare(
"text-align",keyword) == 0)
3799 (void) GetNextToken(q,&q,extent,token);
3800 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3806 graphic_context[n]->align=(AlignType) align;
3809 if (LocaleCompare(
"text-anchor",keyword) == 0)
3814 (void) GetNextToken(q,&q,extent,token);
3815 align=ParseCommandOption(MagickAlignOptions,MagickFalse,token);
3821 graphic_context[n]->align=(AlignType) align;
3824 if (LocaleCompare(
"text-antialias",keyword) == 0)
3826 (void) GetNextToken(q,&q,extent,token);
3827 graphic_context[n]->text_antialias=StringToLong(token) != 0 ?
3828 MagickTrue : MagickFalse;
3831 if (LocaleCompare(
"text-undercolor",keyword) == 0)
3833 (void) GetNextToken(q,&q,extent,token);
3834 status&=QueryColorDatabase(token,&graphic_context[n]->undercolor,
3838 if (LocaleCompare(
"translate",keyword) == 0)
3840 (void) GetNextToken(q,&q,extent,token);
3841 affine.tx=GetDrawValue(token,&next_token);
3842 if (token == next_token)
3843 ThrowPointExpectedException(image,token);
3844 (void) GetNextToken(q,&q,extent,token);
3846 (void) GetNextToken(q,&q,extent,token);
3847 affine.ty=GetDrawValue(token,&next_token);
3848 if (token == next_token)
3849 ThrowPointExpectedException(image,token);
3858 if (LocaleCompare(
"use",keyword) == 0)
3866 (void) GetNextToken(q,&q,extent,token);
3867 use=(
const char *) GetValueFromSplayTree(macros,token);
3868 if (use != (
const char *) NULL)
3870 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
3871 (void) CloneString(&clone_info->primitive,use);
3872 status=RenderMVGContent(image,clone_info,depth+1);
3873 clone_info=DestroyDrawInfo(clone_info);
3883 if (LocaleCompare(
"viewbox",keyword) == 0)
3885 (void) GetNextToken(q,&q,extent,token);
3886 graphic_context[n]->viewbox.x=CastDoubleToLong(ceil(
3887 GetDrawValue(token,&next_token)-0.5));
3888 if (token == next_token)
3889 ThrowPointExpectedException(image,token);
3890 (void) GetNextToken(q,&q,extent,token);
3892 (void) GetNextToken(q,&q,extent,token);
3893 graphic_context[n]->viewbox.y=CastDoubleToLong(ceil(
3894 GetDrawValue(token,&next_token)-0.5));
3895 if (token == next_token)
3896 ThrowPointExpectedException(image,token);
3897 (void) GetNextToken(q,&q,extent,token);
3899 (void) GetNextToken(q,&q,extent,token);
3900 graphic_context[n]->viewbox.width=(size_t) floor(GetDrawValue(
3901 token,&next_token)+0.5);
3902 if (token == next_token)
3903 ThrowPointExpectedException(image,token);
3904 (void) GetNextToken(q,&q,extent,token);
3906 (void) GetNextToken(q,&q,extent,token);
3907 graphic_context[n]->viewbox.height=(size_t) floor(GetDrawValue(
3908 token,&next_token)+0.5);
3909 if (token == next_token)
3910 ThrowPointExpectedException(image,token);
3919 if (LocaleCompare(
"word-spacing",keyword) == 0)
3921 (void) GetNextToken(q,&q,extent,token);
3922 graphic_context[n]->interword_spacing=GetDrawValue(token,
3924 if (token == next_token)
3925 ThrowPointExpectedException(image,token);
3937 if (status == MagickFalse)
3939 if ((fabs(affine.sx-1.0) >= MagickEpsilon) ||
3940 (fabs(affine.rx) >= MagickEpsilon) || (fabs(affine.ry) >= MagickEpsilon) ||
3941 (fabs(affine.sy-1.0) >= MagickEpsilon) ||
3942 (fabs(affine.tx) >= MagickEpsilon) || (fabs(affine.ty) >= MagickEpsilon))
3944 graphic_context[n]->affine.sx=current.sx*affine.sx+current.ry*affine.rx;
3945 graphic_context[n]->affine.rx=current.rx*affine.sx+current.sy*affine.rx;
3946 graphic_context[n]->affine.ry=current.sx*affine.ry+current.ry*affine.sy;
3947 graphic_context[n]->affine.sy=current.rx*affine.ry+current.sy*affine.sy;
3948 graphic_context[n]->affine.tx=current.sx*affine.tx+current.ry*affine.ty+
3950 graphic_context[n]->affine.ty=current.rx*affine.tx+current.sy*affine.ty+
3953 if (primitive_type == UndefinedPrimitive)
3955 if ((draw_info->debug != MagickFalse) && (q > p))
3956 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int)
3963 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
3964 if (primitive_info[i].text != (
char *) NULL)
3965 primitive_info[i].text=DestroyString(primitive_info[i].text);
3969 primitive_info[0].point.x=0.0;
3970 primitive_info[0].point.y=0.0;
3971 primitive_info[0].coordinates=0;
3972 primitive_info[0].method=FloodfillMethod;
3973 primitive_info[0].closed_subpath=MagickFalse;
3974 for (x=0; *q !=
'\0'; x++)
3979 if (IsPoint(q) == MagickFalse)
3981 (void) GetNextToken(q,&q,extent,token);
3982 point.x=GetDrawValue(token,&next_token);
3983 if (token == next_token)
3984 ThrowPointExpectedException(image,token);
3985 (void) GetNextToken(q,&q,extent,token);
3987 (void) GetNextToken(q,&q,extent,token);
3988 point.y=GetDrawValue(token,&next_token);
3989 if (token == next_token)
3990 ThrowPointExpectedException(image,token);
3991 (void) GetNextToken(q,(
const char **) NULL,extent,token);
3993 (void) GetNextToken(q,&q,extent,token);
3994 primitive_info[i].primitive=primitive_type;
3995 primitive_info[i].point=point;
3996 primitive_info[i].coordinates=0;
3997 primitive_info[i].method=FloodfillMethod;
3998 primitive_info[i].closed_subpath=MagickFalse;
4001 if (i < (ssize_t) number_points)
4003 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4004 primitive_info=(*mvg_info.primitive_info);
4006 if (status == MagickFalse)
4008 if (primitive_info[j].text != (
char *) NULL)
4009 primitive_info[j].text=DestroyString(primitive_info[j].text);
4010 primitive_info[j].primitive=primitive_type;
4011 primitive_info[j].coordinates=(size_t) x;
4012 primitive_info[j].method=FloodfillMethod;
4013 primitive_info[j].closed_subpath=MagickFalse;
4017 bounds.x1=primitive_info[j].point.x;
4018 bounds.y1=primitive_info[j].point.y;
4019 bounds.x2=primitive_info[j].point.x;
4020 bounds.y2=primitive_info[j].point.y;
4021 for (k=1; k < (ssize_t) primitive_info[j].coordinates; k++)
4023 point=primitive_info[j+k].point;
4024 if (point.x < bounds.x1)
4026 if (point.y < bounds.y1)
4028 if (point.x > bounds.x2)
4030 if (point.y > bounds.y2)
4036 coordinates=(double) primitive_info[j].coordinates;
4037 switch (primitive_type)
4039 case RectanglePrimitive:
4044 case RoundRectanglePrimitive:
4051 alpha=bounds.x2-bounds.x1;
4052 beta=bounds.y2-bounds.y1;
4053 radius=hypot(alpha,beta);
4055 coordinates+=2.0*((size_t) ceil((
double) MagickPI*radius))+6.0*
4056 BezierQuantum+360.0;
4059 case BezierPrimitive:
4061 coordinates=(BezierQuantum*(double) primitive_info[j].coordinates);
4070 (void) GetNextToken(q,&q,extent,token);
4073 for (s=token; *s !=
'\0'; s=t)
4078 value=GetDrawValue(s,&t);
4087 for (s=token; *s !=
'\0'; s++)
4088 if (strspn(s,
"AaCcQqSsTt") != 0)
4089 coordinates+=(20.0*BezierQuantum)+360.0;
4095 if (status == MagickFalse)
4097 if (((
size_t) (i+coordinates)) >= number_points)
4102 number_points+=coordinates+1;
4103 if (number_points < (
size_t) coordinates)
4105 (void) ThrowMagickException(&image->exception,GetMagickModule(),
4106 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
4111 status&=CheckPrimitiveExtent(&mvg_info,(
double) number_points);
4112 primitive_info=(*mvg_info.primitive_info);
4114 status&=CheckPrimitiveExtent(&mvg_info,PrimitiveExtentPad);
4115 primitive_info=(*mvg_info.primitive_info);
4116 if (status == MagickFalse)
4119 switch (primitive_type)
4121 case PointPrimitive:
4124 if (primitive_info[j].coordinates != 1)
4129 status&=TracePoint(primitive_info+j,primitive_info[j].point);
4130 primitive_info=(*mvg_info.primitive_info);
4131 i=(ssize_t) (j+primitive_info[j].coordinates);
4136 if (primitive_info[j].coordinates != 2)
4141 status&=TraceLine(primitive_info+j,primitive_info[j].point,
4142 primitive_info[j+1].point);
4143 primitive_info=(*mvg_info.primitive_info);
4144 i=(ssize_t) (j+primitive_info[j].coordinates);
4147 case RectanglePrimitive:
4149 if (primitive_info[j].coordinates != 2)
4154 status&=TraceRectangle(primitive_info+j,primitive_info[j].point,
4155 primitive_info[j+1].point);
4156 primitive_info=(*mvg_info.primitive_info);
4157 i=(ssize_t) (j+primitive_info[j].coordinates);
4160 case RoundRectanglePrimitive:
4162 if (primitive_info[j].coordinates != 3)
4167 if ((primitive_info[j+2].point.x < 0.0) ||
4168 (primitive_info[j+2].point.y < 0.0))
4173 if ((primitive_info[j+1].point.x-primitive_info[j].point.x) < 0.0)
4178 if ((primitive_info[j+1].point.y-primitive_info[j].point.y) < 0.0)
4183 status&=TraceRoundRectangle(&mvg_info,primitive_info[j].point,
4184 primitive_info[j+1].point,primitive_info[j+2].point);
4185 primitive_info=(*mvg_info.primitive_info);
4186 i=(ssize_t) (j+primitive_info[j].coordinates);
4191 if (primitive_info[j].coordinates != 3)
4196 status&=TraceArc(&mvg_info,primitive_info[j].point,
4197 primitive_info[j+1].point,primitive_info[j+2].point);
4198 primitive_info=(*mvg_info.primitive_info);
4199 i=(ssize_t) (j+primitive_info[j].coordinates);
4202 case EllipsePrimitive:
4204 if (primitive_info[j].coordinates != 3)
4209 if ((primitive_info[j+1].point.x < 0.0) ||
4210 (primitive_info[j+1].point.y < 0.0))
4215 status&=TraceEllipse(&mvg_info,primitive_info[j].point,
4216 primitive_info[j+1].point,primitive_info[j+2].point);
4217 primitive_info=(*mvg_info.primitive_info);
4218 i=(ssize_t) (j+primitive_info[j].coordinates);
4221 case CirclePrimitive:
4223 if (primitive_info[j].coordinates != 2)
4228 status&=TraceCircle(&mvg_info,primitive_info[j].point,
4229 primitive_info[j+1].point);
4230 primitive_info=(*mvg_info.primitive_info);
4231 i=(ssize_t) (j+primitive_info[j].coordinates);
4234 case PolylinePrimitive:
4236 if (primitive_info[j].coordinates < 1)
4243 case PolygonPrimitive:
4245 if (primitive_info[j].coordinates < 3)
4250 primitive_info[i]=primitive_info[j];
4251 primitive_info[i].coordinates=0;
4252 primitive_info[j].coordinates++;
4253 primitive_info[j].closed_subpath=MagickTrue;
4257 case BezierPrimitive:
4259 if (primitive_info[j].coordinates < 3)
4264 status&=TraceBezier(&mvg_info,primitive_info[j].coordinates);
4265 primitive_info=(*mvg_info.primitive_info);
4266 i=(ssize_t) (j+primitive_info[j].coordinates);
4271 coordinates=(double) TracePath(image,&mvg_info,token);
4272 primitive_info=(*mvg_info.primitive_info);
4273 if (coordinates < 0.0)
4278 i=(ssize_t) (j+coordinates);
4281 case ColorPrimitive:
4282 case MattePrimitive:
4287 if (primitive_info[j].coordinates != 1)
4292 (void) GetNextToken(q,&q,extent,token);
4293 method=ParseCommandOption(MagickMethodOptions,MagickFalse,token);
4299 primitive_info[j].method=(PaintMethod) method;
4305 geometry[MagickPathExtent];
4307 if (primitive_info[j].coordinates != 1)
4313 (void) GetNextToken(q,&q,extent,token);
4314 (void) CloneString(&primitive_info[j].text,token);
4318 clone_info=CloneDrawInfo((
ImageInfo *) NULL,graphic_context[n]);
4319 if ((fabs(mvg_info.point.x-primitive_info->point.x) < MagickEpsilon) &&
4320 (fabs(mvg_info.point.y-primitive_info->point.y) < MagickEpsilon))
4322 mvg_info.point=primitive_info->point;
4323 primitive_info->point.x+=cursor;
4327 mvg_info.point=primitive_info->point;
4330 (void) FormatLocaleString(geometry,MagickPathExtent,
"%+f%+f",
4331 primitive_info->point.x,primitive_info->point.y);
4332 clone_info->render=MagickFalse;
4333 clone_info->text=AcquireString(token);
4334 status&=GetTypeMetrics(image,clone_info,&metrics);
4335 clone_info=DestroyDrawInfo(clone_info);
4336 cursor+=metrics.width;
4337 if (graphic_context[n]->compliance != SVGCompliance)
4341 case ImagePrimitive:
4343 if (primitive_info[j].coordinates != 2)
4348 (void) GetNextToken(q,&q,extent,token);
4349 (void) CloneString(&primitive_info[j].text,token);
4356 primitive_info[i].primitive=UndefinedPrimitive;
4357 if ((draw_info->debug != MagickFalse) && (q > p))
4358 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" %.*s",(int) (q-p),p);
4362 status&=CheckPrimitiveExtent(&mvg_info,ExpandAffine(
4363 &graphic_context[n]->affine));
4364 primitive_info=(*mvg_info.primitive_info);
4367 status&=CheckPrimitiveExtent(&mvg_info,(
double)
4368 graphic_context[n]->stroke_width);
4369 primitive_info=(*mvg_info.primitive_info);
4377 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4379 point=primitive_info[i].point;
4380 primitive_info[i].point.x=graphic_context[n]->affine.sx*point.x+
4381 graphic_context[n]->affine.ry*point.y+graphic_context[n]->affine.tx;
4382 primitive_info[i].point.y=graphic_context[n]->affine.rx*point.x+
4383 graphic_context[n]->affine.sy*point.y+graphic_context[n]->affine.ty;
4384 point=primitive_info[i].point;
4385 if (point.x < graphic_context[n]->bounds.x1)
4386 graphic_context[n]->bounds.x1=point.x;
4387 if (point.y < graphic_context[n]->bounds.y1)
4388 graphic_context[n]->bounds.y1=point.y;
4389 if (point.x > graphic_context[n]->bounds.x2)
4390 graphic_context[n]->bounds.x2=point.x;
4391 if (point.y > graphic_context[n]->bounds.y2)
4392 graphic_context[n]->bounds.y2=point.y;
4393 if (primitive_info[i].primitive == ImagePrimitive)
4395 if (i >= (ssize_t) number_points)
4396 ThrowFatalException(ResourceLimitFatalError,
"MemoryAllocationFailed");
4398 if (graphic_context[n]->render != MagickFalse)
4400 if ((n != 0) && (graphic_context[n]->compliance != SVGCompliance) &&
4401 (graphic_context[n]->clip_mask != (
char *) NULL) &&
4402 (LocaleCompare(graphic_context[n]->clip_mask,
4403 graphic_context[n-1]->clip_mask) != 0))
4408 clip_path=(
const char *) GetValueFromSplayTree(macros,
4409 graphic_context[n]->clip_mask);
4410 if (clip_path != (
const char *) NULL)
4411 (
void) SetImageArtifact(image,graphic_context[n]->clip_mask,
4413 status&=DrawClipPath(image,graphic_context[n],
4414 graphic_context[n]->clip_mask);
4416 status&=DrawPrimitive(image,graphic_context[n],primitive_info);
4418 proceed=SetImageProgress(image,RenderImageTag,q-primitive,(MagickSizeType)
4420 if (proceed == MagickFalse)
4425 if (draw_info->debug != MagickFalse)
4426 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end draw-image");
4430 macros=DestroySplayTree(macros);
4431 token=DestroyString(token);
4434 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
4435 if (primitive_info[i].text != (
char *) NULL)
4436 primitive_info[i].text=DestroyString(primitive_info[i].text);
4437 primitive_info=(
PrimitiveInfo *) RelinquishMagickMemory(primitive_info);
4439 primitive=DestroyString(primitive);
4440 for ( ; n >= 0; n--)
4441 graphic_context[n]=DestroyDrawInfo(graphic_context[n]);
4442 graphic_context=(
DrawInfo **) RelinquishMagickMemory(graphic_context);
4443 if (status == MagickFalse)
4444 ThrowBinaryImageException(DrawError,
4445 "NonconformingDrawingPrimitiveDefinition",keyword);
4446 return(status != 0 ? MagickTrue : MagickFalse);
4449 MagickExport MagickBooleanType DrawImage(
Image *image,
const DrawInfo *draw_info)
4451 return(RenderMVGContent(image,draw_info,0));
4483 MagickExport MagickBooleanType DrawPatternPath(
Image *image,
4487 property[MaxTextExtent];
4503 assert(image != (
Image *) NULL);
4504 assert(image->signature == MagickCoreSignature);
4505 assert(draw_info != (
const DrawInfo *) NULL);
4506 if (IsEventLogging() != MagickFalse)
4507 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4508 assert(name != (
const char *) NULL);
4509 (void) FormatLocaleString(property,MaxTextExtent,
"%s",name);
4510 path=GetImageArtifact(image,property);
4511 if (path == (
const char *) NULL)
4512 return(MagickFalse);
4513 (void) FormatLocaleString(property,MaxTextExtent,
"%s-geometry",name);
4514 geometry=GetImageArtifact(image,property);
4515 if (geometry == (
const char *) NULL)
4516 return(MagickFalse);
4517 if ((*pattern) != (
Image *) NULL)
4518 *pattern=DestroyImage(*pattern);
4519 image_info=AcquireImageInfo();
4520 image_info->size=AcquireString(geometry);
4521 *pattern=AcquireImage(image_info);
4522 image_info=DestroyImageInfo(image_info);
4523 (void) QueryColorDatabase(
"#00000000",&(*pattern)->background_color,
4525 (void) SetImageBackgroundColor(*pattern);
4526 if (draw_info->debug != MagickFalse)
4527 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
4528 "begin pattern-path %s %s",name,geometry);
4529 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
4530 if (clone_info->fill_pattern != (
Image *) NULL)
4531 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
4532 if (clone_info->stroke_pattern != (
Image *) NULL)
4533 clone_info->stroke_pattern=DestroyImage(clone_info->stroke_pattern);
4534 (void) FormatLocaleString(property,MaxTextExtent,
"%s-type",name);
4535 type=GetImageArtifact(image,property);
4536 if (type != (
const char *) NULL)
4537 clone_info->gradient.type=(GradientType) ParseCommandOption(
4538 MagickGradientOptions,MagickFalse,type);
4539 (void) CloneString(&clone_info->primitive,path);
4540 status=RenderMVGContent(*pattern,clone_info,0);
4541 clone_info=DestroyDrawInfo(clone_info);
4542 if (draw_info->debug != MagickFalse)
4543 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
"end pattern-path");
4581 for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
4583 polygon_info[i]=DestroyPolygonInfo(polygon_info[i]);
4584 polygon_info=(
PolygonInfo **) RelinquishMagickMemory(polygon_info);
4585 return(polygon_info);
4592 *magick_restrict path_info;
4600 number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
4601 polygon_info=(
PolygonInfo **) AcquireQuantumMemory(number_threads,
4602 sizeof(*polygon_info));
4605 (void) ThrowMagickException(exception,GetMagickModule(),
4606 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4609 (void) memset(polygon_info,0,number_threads*
sizeof(*polygon_info));
4610 path_info=ConvertPrimitiveToPath(draw_info,primitive_info,exception);
4611 if (path_info == (
PathInfo *) NULL)
4612 return(DestroyPolygonTLS(polygon_info));
4613 polygon_info[0]=ConvertPathToPolygon(path_info,exception);
4616 (void) ThrowMagickException(exception,GetMagickModule(),
4617 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4618 return(DestroyPolygonTLS(polygon_info));
4620 path_info=(
PathInfo *) RelinquishMagickMemory(path_info);
4621 return(polygon_info);
4624 static MagickBooleanType AcquirePolygonEdgesTLS(
PolygonInfo **polygon_info,
4630 for (i=1; i < (ssize_t) number_threads; i++)
4638 polygon_info[i]=(
PolygonInfo *) AcquireMagickMemory(
4639 sizeof(*polygon_info[i]));
4642 (void) ThrowMagickException(exception,GetMagickModule(),
4643 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4644 return(MagickFalse);
4646 polygon_info[i]->number_edges=0;
4647 edge_info=polygon_info[0]->edges;
4648 polygon_info[i]->edges=(
EdgeInfo *) AcquireQuantumMemory(
4649 polygon_info[0]->number_edges,
sizeof(*edge_info));
4650 if (polygon_info[i]->edges == (
EdgeInfo *) NULL)
4652 (void) ThrowMagickException(exception,GetMagickModule(),
4653 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4654 return(MagickFalse);
4656 (void) memcpy(polygon_info[i]->edges,edge_info,
4657 polygon_info[0]->number_edges*
sizeof(*edge_info));
4658 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4659 polygon_info[i]->edges[j].points=(
PointInfo *) NULL;
4660 polygon_info[i]->number_edges=polygon_info[0]->number_edges;
4661 for (j=0; j < (ssize_t) polygon_info[i]->number_edges; j++)
4663 edge_info=polygon_info[0]->edges+j;
4664 polygon_info[i]->edges[j].points=(
PointInfo *) AcquireQuantumMemory(
4665 edge_info->number_points,
sizeof(*edge_info));
4666 if (polygon_info[i]->edges[j].points == (
PointInfo *) NULL)
4668 (void) ThrowMagickException(exception,GetMagickModule(),
4669 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
4670 return(MagickFalse);
4672 (void) memcpy(polygon_info[i]->edges[j].points,edge_info->points,
4673 edge_info->number_points*
sizeof(*edge_info->points));
4679 static size_t DestroyEdge(
PolygonInfo *polygon_info,
const ssize_t edge)
4681 assert(edge < (ssize_t) polygon_info->number_edges);
4682 polygon_info->edges[edge].points=(
PointInfo *) RelinquishMagickMemory(
4683 polygon_info->edges[edge].points);
4684 polygon_info->number_edges--;
4685 if (edge < (ssize_t) polygon_info->number_edges)
4686 (
void) memmove(polygon_info->edges+edge,polygon_info->edges+edge+1,
4687 (
size_t) (polygon_info->number_edges-edge)*
sizeof(*polygon_info->edges));
4688 return(polygon_info->number_edges);
4691 static double GetOpacityPixel(
PolygonInfo *polygon_info,
const double mid,
4692 const MagickBooleanType fill,
const FillRule fill_rule,
const ssize_t x,
4693 const ssize_t y,
double *stroke_opacity)
4720 *stroke_opacity=0.0;
4721 subpath_opacity=0.0;
4722 p=polygon_info->edges;
4723 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4725 if ((
double) y <= (p->bounds.y1-mid-0.5))
4727 if ((
double) y > (p->bounds.y2+mid+0.5))
4730 (void) DestroyEdge(polygon_info,j--);
4733 if (((
double) x <= (p->bounds.x1-mid-0.5)) ||
4734 ((double) x > (p->bounds.x2+mid+0.5)))
4736 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4737 for ( ; i < (ssize_t) p->number_points; i++)
4739 if ((
double) y <= (p->points[i-1].y-mid-0.5))
4741 if ((
double) y > (p->points[i].y+mid+0.5))
4743 if (p->scanline != (
double) y)
4745 p->scanline=(double) y;
4746 p->highwater=(size_t) i;
4752 delta.x=(q+1)->x-q->x;
4753 delta.y=(q+1)->y-q->y;
4754 beta=delta.x*(x-q->x)+delta.y*(y-q->y);
4757 delta.x=(double) x-q->x;
4758 delta.y=(
double) y-q->y;
4759 distance=delta.x*delta.x+delta.y*delta.y;
4763 alpha=delta.x*delta.x+delta.y*delta.y;
4766 delta.x=(double) x-(q+1)->x;
4767 delta.y=(double) y-(q+1)->y;
4768 distance=delta.x*delta.x+delta.y*delta.y;
4772 alpha=PerceptibleReciprocal(alpha);
4773 beta=delta.x*(y-q->y)-delta.y*(x-q->x);
4774 distance=alpha*beta*beta;
4781 if (p->ghostline == MagickFalse)
4784 if ((*stroke_opacity < 1.0) &&
4785 (distance <= ((alpha+0.25)*(alpha+0.25))))
4788 if (distance <= ((alpha+0.25)*(alpha+0.25)))
4789 *stroke_opacity=1.0;
4793 if (fabs(distance-1.0) >= MagickEpsilon)
4794 beta=sqrt((
double) distance);
4796 if (*stroke_opacity < ((alpha-0.25)*(alpha-0.25)))
4797 *stroke_opacity=(alpha-0.25)*(alpha-0.25);
4801 if ((fill == MagickFalse) || (distance > 1.0) || (subpath_opacity >= 1.0))
4803 if (distance <= 0.0)
4805 subpath_opacity=1.0;
4810 if (fabs(beta) < MagickEpsilon)
4813 if (fabs(distance-1.0) >= MagickEpsilon)
4814 beta=sqrt(distance);
4817 if (subpath_opacity < (alpha*alpha))
4818 subpath_opacity=alpha*alpha;
4824 if (fill == MagickFalse)
4826 if (subpath_opacity >= 1.0)
4832 p=polygon_info->edges;
4833 for (j=0; j < (ssize_t) polygon_info->number_edges; j++, p++)
4835 if ((
double) y <= p->bounds.y1)
4837 if (((
double) y > p->bounds.y2) || ((
double) x <= p->bounds.x1))
4839 if ((
double) x > p->bounds.x2)
4841 winding_number+=p->direction != 0 ? 1 : -1;
4844 i=(ssize_t) MagickMax((
double) p->highwater,1.0);
4845 for ( ; i < (ssize_t) (p->number_points-1); i++)
4846 if ((
double) y <= p->points[i].y)
4849 if ((((q+1)->x-q->x)*(y-q->y)) <= (((q+1)->y-q->y)*(x-q->x)))
4850 winding_number+=p->direction != 0 ? 1 : -1;
4852 if (fill_rule != NonZeroRule)
4854 if ((MagickAbsoluteValue(winding_number) & 0x01) != 0)
4858 if (MagickAbsoluteValue(winding_number) != 0)
4860 return(subpath_opacity);
4863 static MagickBooleanType DrawPolygonPrimitive(
Image *image,
4866 typedef struct _ExtentInfo
4895 **magick_restrict polygon_info;
4910 assert(image != (
Image *) NULL);
4911 assert(image->signature == MagickCoreSignature);
4912 assert(draw_info != (
DrawInfo *) NULL);
4913 assert(draw_info->signature == MagickCoreSignature);
4915 if (IsEventLogging() != MagickFalse)
4916 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"%s",image->filename);
4917 if (primitive_info->coordinates <= 1)
4922 polygon_info=AcquirePolygonTLS(draw_info,primitive_info,&image->exception);
4924 return(MagickFalse);
4925 if (draw_info->debug != MagickFalse)
4926 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" begin draw-polygon");
4927 fill=(primitive_info->method == FillToBorderMethod) ||
4928 (primitive_info->method == FloodfillMethod) ? MagickTrue : MagickFalse;
4929 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
4930 bounds=polygon_info[0]->edges[0].bounds;
4931 artifact=GetImageArtifact(image,
"draw:render-bounding-rectangles");
4932 if (IsStringTrue(artifact) != MagickFalse)
4933 (void) DrawBoundingRectangles(image,draw_info,polygon_info[0]);
4934 for (i=1; i < (ssize_t) polygon_info[0]->number_edges; i++)
4936 p=polygon_info[0]->edges+i;
4937 if (p->bounds.x1 < bounds.x1)
4938 bounds.x1=p->bounds.x1;
4939 if (p->bounds.y1 < bounds.y1)
4940 bounds.y1=p->bounds.y1;
4941 if (p->bounds.x2 > bounds.x2)
4942 bounds.x2=p->bounds.x2;
4943 if (p->bounds.y2 > bounds.y2)
4944 bounds.y2=p->bounds.y2;
4946 bounds.x1-=(mid+1.0);
4947 bounds.y1-=(mid+1.0);
4948 bounds.x2+=(mid+1.0);
4949 bounds.y2+=(mid+1.0);
4950 if ((bounds.x1 >= (
double) image->columns) ||
4951 (bounds.y1 >= (
double) image->rows) ||
4952 (bounds.x2 <= 0.0) || (bounds.y2 <= 0.0))
4954 polygon_info=DestroyPolygonTLS(polygon_info);
4957 bounds.x1=bounds.x1 < 0.0 ? 0.0 : bounds.x1 >= (double) image->columns-1.0 ?
4958 (
double) image->columns-1.0 : bounds.x1;
4959 bounds.y1=bounds.y1 < 0.0 ? 0.0 : bounds.y1 >= (double) image->rows-1.0 ?
4960 (
double) image->rows-1.0 : bounds.y1;
4961 bounds.x2=bounds.x2 < 0.0 ? 0.0 : bounds.x2 >= (double) image->columns-1.0 ?
4962 (
double) image->columns-1.0 : bounds.x2;
4963 bounds.y2=bounds.y2 < 0.0 ? 0.0 : bounds.y2 >= (double) image->rows-1.0 ?
4964 (
double) image->rows-1.0 : bounds.y2;
4965 poly_extent.x1=CastDoubleToLong(ceil(bounds.x1-0.5));
4966 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
4967 poly_extent.x2=CastDoubleToLong(floor(bounds.x2+0.5));
4968 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
4969 number_threads=GetMagickNumberThreads(image,image,poly_extent.y2-
4970 poly_extent.y1+1,1);
4971 status=AcquirePolygonEdgesTLS(polygon_info,number_threads,&image->exception);
4972 if (status == MagickFalse)
4974 polygon_info=DestroyPolygonTLS(polygon_info);
4978 exception=(&image->exception);
4979 image_view=AcquireAuthenticCacheView(image,exception);
4980 if ((primitive_info->coordinates == 1) ||
4981 (polygon_info[0]->number_edges == 0))
4986 #if defined(MAGICKCORE_OPENMP_SUPPORT)
4987 #pragma omp parallel for schedule(static) shared(status) \
4988 num_threads(number_threads)
4990 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5001 if (status == MagickFalse)
5004 q=GetCacheViewAuthenticPixels(image_view,x,y,(
size_t) (poly_extent.x2-
5011 for ( ; x <= poly_extent.x2; x++)
5013 if ((x == CastDoubleToLong(ceil(primitive_info->point.x-0.5))) &&
5014 (y == CastDoubleToLong(ceil(primitive_info->point.y-0.5))))
5015 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,q);
5018 sync=SyncCacheViewAuthenticPixels(image_view,exception);
5019 if (sync == MagickFalse)
5022 image_view=DestroyCacheView(image_view);
5023 polygon_info=DestroyPolygonTLS(polygon_info);
5024 if (draw_info->debug != MagickFalse)
5025 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5026 " end draw-polygon");
5032 poly_extent.y1=CastDoubleToLong(ceil(bounds.y1-0.5));
5033 poly_extent.y2=CastDoubleToLong(floor(bounds.y2+0.5));
5034 #if defined(MAGICKCORE_OPENMP_SUPPORT)
5035 #pragma omp parallel for schedule(static) shared(status) \
5036 num_threads(number_threads)
5038 for (y=poly_extent.y1; y <= poly_extent.y2; y++)
5041 id = GetOpenMPThreadId();
5053 if (status == MagickFalse)
5055 q=GetCacheViewAuthenticPixels(image_view,poly_extent.x1,y,(
size_t)
5056 (poly_extent.x2-poly_extent.x1+1),1,exception);
5062 for (x=poly_extent.x1; x <= poly_extent.x2; x++)
5071 fill_opacity=GetOpacityPixel(polygon_info[
id],mid,fill,
5072 draw_info->fill_rule,x,y,&stroke_opacity);
5073 if (draw_info->stroke_antialias == MagickFalse)
5075 fill_opacity=fill_opacity > 0.5 ? 1.0 : 0.0;
5076 stroke_opacity=stroke_opacity > 0.5 ? 1.0 : 0.0;
5078 (void) GetFillColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5080 fill_opacity=(double) (QuantumRange-fill_opacity*(QuantumRange-
5081 fill_color.opacity));
5082 MagickCompositeOver(&fill_color,(MagickRealType) fill_opacity,q,
5083 (MagickRealType) q->opacity,q);
5084 (void) GetStrokeColor(draw_info,x-poly_extent.x1,y-poly_extent.y1,
5086 stroke_opacity=(double) (QuantumRange-stroke_opacity*(QuantumRange-
5087 stroke_color.opacity));
5088 MagickCompositeOver(&stroke_color,(MagickRealType) stroke_opacity,q,
5089 (MagickRealType) q->opacity,q);
5092 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
5095 image_view=DestroyCacheView(image_view);
5096 polygon_info=DestroyPolygonTLS(polygon_info);
5097 if (draw_info->debug != MagickFalse)
5098 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-polygon");
5129 static void LogPrimitiveInfo(
const PrimitiveInfo *primitive_info)
5155 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5156 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5157 switch (primitive_info->primitive)
5159 case PointPrimitive:
5161 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5162 "PointPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5163 methods[primitive_info->method]);
5166 case ColorPrimitive:
5168 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5169 "ColorPrimitive %.20g,%.20g %s",(double) x,(
double) y,
5170 methods[primitive_info->method]);
5173 case MattePrimitive:
5175 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5176 "MattePrimitive %.20g,%.20g %s",(double) x,(
double) y,
5177 methods[primitive_info->method]);
5182 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5183 "TextPrimitive %.20g,%.20g",(double) x,(
double) y);
5186 case ImagePrimitive:
5188 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5189 "ImagePrimitive %.20g,%.20g",(double) x,(
double) y);
5196 p=primitive_info[0].point;
5199 for (i=0; primitive_info[i].primitive != UndefinedPrimitive; i++)
5201 point=primitive_info[i].point;
5202 if (coordinates <= 0)
5204 coordinates=(ssize_t) primitive_info[i].coordinates;
5205 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5206 " begin open (%.20g)",(double) coordinates);
5209 point=primitive_info[i].point;
5210 if ((fabs(q.x-point.x) >= MagickEpsilon) ||
5211 (fabs(q.y-point.y) >= MagickEpsilon))
5212 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5213 " %.20g: %.18g,%.18g",(double) coordinates,point.x,point.y);
5215 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
5216 " %.20g: %g %g (duplicate)",(
double) coordinates,point.x,point.y);
5219 if (coordinates > 0)
5221 if ((fabs(p.x-point.x) >= MagickEpsilon) ||
5222 (fabs(p.y-point.y) >= MagickEpsilon))
5223 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end last (%.20g)",
5224 (double) coordinates);
5226 (
void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end open (%.20g)",
5227 (
double) coordinates);
5231 MagickExport MagickBooleanType DrawPrimitive(
Image *image,
5250 if (draw_info->debug != MagickFalse)
5252 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5253 " begin draw-primitive");
5254 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5255 " affine: %g,%g,%g,%g,%g,%g",draw_info->affine.sx,
5256 draw_info->affine.rx,draw_info->affine.ry,draw_info->affine.sy,
5257 draw_info->affine.tx,draw_info->affine.ty);
5259 exception=(&image->exception);
5261 if ((IsGrayColorspace(image->colorspace) != MagickFalse) &&
5262 ((IsPixelGray(&draw_info->fill) == MagickFalse) ||
5263 (IsPixelGray(&draw_info->stroke) == MagickFalse)))
5264 status=SetImageColorspace(image,sRGBColorspace);
5265 if (draw_info->compliance == SVGCompliance)
5267 status&=SetImageClipMask(image,draw_info->clipping_mask);
5268 status&=SetImageMask(image,draw_info->composite_mask);
5270 x=CastDoubleToLong(ceil(primitive_info->point.x-0.5));
5271 y=CastDoubleToLong(ceil(primitive_info->point.y-0.5));
5272 image_view=AcquireAuthenticCacheView(image,exception);
5273 switch (primitive_info->primitive)
5275 case ColorPrimitive:
5277 switch (primitive_info->method)
5285 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5288 (void) GetFillColor(draw_info,x,y,q);
5289 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5297 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5298 for (y=0; y < (ssize_t) image->rows; y++)
5303 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5307 for (x=0; x < (ssize_t) image->columns; x++)
5309 if (IsColorSimilar(image,q,&target) == MagickFalse)
5314 (void) GetFillColor(draw_info,x,y,q);
5317 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5318 if (status == MagickFalse)
5323 case FloodfillMethod:
5324 case FillToBorderMethod:
5329 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5330 if (primitive_info->method == FillToBorderMethod)
5332 target.red=(MagickRealType) draw_info->border_color.red;
5333 target.green=(MagickRealType) draw_info->border_color.green;
5334 target.blue=(MagickRealType) draw_info->border_color.blue;
5336 status&=FloodfillPaintImage(image,DefaultChannels,draw_info,&target,x,
5337 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5343 for (y=0; y < (ssize_t) image->rows; y++)
5351 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5355 for (x=0; x < (ssize_t) image->columns; x++)
5357 (void) GetFillColor(draw_info,x,y,q);
5360 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5361 if (status == MagickFalse)
5369 case MattePrimitive:
5371 if (image->matte == MagickFalse)
5372 status&=SetImageAlphaChannel(image,OpaqueAlphaChannel);
5373 switch (primitive_info->method)
5384 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5387 (void) GetFillColor(draw_info,x,y,&pixel);
5388 SetPixelOpacity(q,pixel.opacity);
5389 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5398 status&=GetOneCacheViewVirtualPixel(image_view,x,y,&target,exception);
5399 for (y=0; y < (ssize_t) image->rows; y++)
5407 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5411 for (x=0; x < (ssize_t) image->columns; x++)
5413 if (IsColorSimilar(image,q,&target) == MagickFalse)
5418 (void) GetFillColor(draw_info,x,y,&pixel);
5419 SetPixelOpacity(q,pixel.opacity);
5422 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5423 if (status == MagickFalse)
5428 case FloodfillMethod:
5429 case FillToBorderMethod:
5434 status&=GetOneVirtualMagickPixel(image,x,y,&target,exception);
5435 if (primitive_info->method == FillToBorderMethod)
5437 target.red=(MagickRealType) draw_info->border_color.red;
5438 target.green=(MagickRealType) draw_info->border_color.green;
5439 target.blue=(MagickRealType) draw_info->border_color.blue;
5441 status&=FloodfillPaintImage(image,OpacityChannel,draw_info,&target,x,
5442 y,primitive_info->method == FloodfillMethod ? MagickFalse :
5451 for (y=0; y < (ssize_t) image->rows; y++)
5459 q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
5463 for (x=0; x < (ssize_t) image->columns; x++)
5465 (void) GetFillColor(draw_info,x,y,&pixel);
5466 SetPixelOpacity(q,pixel.opacity);
5469 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5470 if (status == MagickFalse)
5478 case ImagePrimitive:
5484 composite_geometry[MaxTextExtent];
5500 if (primitive_info->text == (
char *) NULL)
5502 clone_info=AcquireImageInfo();
5503 composite_images=(
Image *) NULL;
5504 if (LocaleNCompare(primitive_info->text,
"data:",5) == 0)
5505 composite_images=ReadInlineImage(clone_info,primitive_info->text,
5508 if (*primitive_info->text !=
'\0')
5519 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5521 (void) SetImageInfo(clone_info,1,exception);
5522 (void) CopyMagickString(clone_info->filename,primitive_info->text,
5524 if (clone_info->size != (
char *) NULL)
5525 clone_info->size=DestroyString(clone_info->size);
5526 if (clone_info->extract != (
char *) NULL)
5527 clone_info->extract=DestroyString(clone_info->extract);
5528 path_status=GetPathAttributes(clone_info->filename,&attributes);
5529 if (path_status != MagickFalse)
5531 if (S_ISCHR(attributes.st_mode) == 0)
5532 composite_images=ReadImage(clone_info,exception);
5534 (
void) ThrowMagickException(exception,GetMagickModule(),
5535 FileOpenError,
"UnableToOpenFile",
"`%s'",
5536 clone_info->filename);
5539 if ((LocaleCompare(clone_info->magick,
"ftp") != 0) &&
5540 (LocaleCompare(clone_info->magick,
"http") != 0) &&
5541 (LocaleCompare(clone_info->magick,
"https") != 0) &&
5542 (LocaleCompare(clone_info->magick,
"vid") != 0))
5543 composite_images=ReadImage(clone_info,exception);
5545 (
void) ThrowMagickException(exception,GetMagickModule(),
5546 FileOpenError,
"UnableToOpenFile",
"`%s'",clone_info->filename);
5548 clone_info=DestroyImageInfo(clone_info);
5549 if (composite_images == (
Image *) NULL)
5554 composite_image=RemoveFirstImageFromList(&composite_images);
5555 composite_images=DestroyImageList(composite_images);
5556 (void) SetImageProgressMonitor(composite_image,(MagickProgressMonitor)
5557 NULL,(
void *) NULL);
5558 x1=CastDoubleToLong(ceil(primitive_info[1].point.x-0.5));
5559 y1=CastDoubleToLong(ceil(primitive_info[1].point.y-0.5));
5560 if (((x1 != 0L) && (x1 != (ssize_t) composite_image->columns)) ||
5561 ((y1 != 0L) && (y1 != (ssize_t) composite_image->rows)))
5564 geometry[MaxTextExtent];
5569 (void) FormatLocaleString(geometry,MaxTextExtent,
"%gx%g!",
5570 primitive_info[1].point.x,primitive_info[1].point.y);
5571 composite_image->filter=image->filter;
5572 status&=TransformImage(&composite_image,(
char *) NULL,geometry);
5574 if (composite_image->matte == MagickFalse)
5575 status&=SetImageAlphaChannel(composite_image,OpaqueAlphaChannel);
5576 if (draw_info->opacity != OpaqueOpacity)
5577 status&=SetImageOpacity(composite_image,draw_info->opacity);
5578 SetGeometry(image,&geometry);
5579 image->gravity=draw_info->gravity;
5582 (void) FormatLocaleString(composite_geometry,MaxTextExtent,
5583 "%.20gx%.20g%+.20g%+.20g",(
double) composite_image->columns,(double)
5584 composite_image->rows,(
double) geometry.x,(double) geometry.y);
5585 (void) ParseGravityGeometry(image,composite_geometry,&geometry,
5587 affine=draw_info->affine;
5588 affine.tx=(double) geometry.x;
5589 affine.ty=(
double) geometry.y;
5590 composite_image->interpolate=image->interpolate;
5591 if ((draw_info->compose == OverCompositeOp) ||
5592 (draw_info->compose == SrcOverCompositeOp))
5593 status&=DrawAffineImage(image,composite_image,&affine);
5595 status&=CompositeImage(image,draw_info->compose,composite_image,
5596 geometry.x,geometry.y);
5597 composite_image=DestroyImage(composite_image);
5600 case PointPrimitive:
5608 if ((y < 0) || (y >= (ssize_t) image->rows))
5610 if ((x < 0) || (x >= (ssize_t) image->columns))
5612 q=GetCacheViewAuthenticPixels(image_view,x,y,1,1,exception);
5615 (void) GetFillColor(draw_info,x,y,&fill_color);
5616 MagickCompositeOver(&fill_color,(MagickRealType) fill_color.opacity,q,
5617 (MagickRealType) q->opacity,q);
5618 status&=SyncCacheViewAuthenticPixels(image_view,exception);
5624 geometry[MaxTextExtent];
5629 if (primitive_info->text == (
char *) NULL)
5631 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5632 (void) CloneString(&clone_info->text,primitive_info->text);
5633 (void) FormatLocaleString(geometry,MaxTextExtent,
"%+f%+f",
5634 primitive_info->point.x,primitive_info->point.y);
5635 (void) CloneString(&clone_info->geometry,geometry);
5636 status&=AnnotateImage(image,clone_info);
5637 clone_info=DestroyDrawInfo(clone_info);
5649 if (IsEventLogging() != MagickFalse)
5650 LogPrimitiveInfo(primitive_info);
5651 scale=ExpandAffine(&draw_info->affine);
5652 if ((draw_info->dash_pattern != (
double *) NULL) &&
5653 (fabs(draw_info->dash_pattern[0]) >= MagickEpsilon) &&
5654 (fabs(scale*draw_info->stroke_width) >= MagickEpsilon) &&
5655 (draw_info->stroke.opacity != (Quantum) TransparentOpacity))
5660 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5661 clone_info->stroke_width=0.0;
5662 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5663 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5664 clone_info=DestroyDrawInfo(clone_info);
5665 if (status != MagickFalse)
5666 status&=DrawDashPolygon(draw_info,primitive_info,image);
5669 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
5671 ((draw_info->stroke.opacity != (Quantum) TransparentOpacity) ||
5672 (draw_info->stroke_pattern != (
Image *) NULL)))
5684 closed_path=primitive_info[0].closed_subpath;
5685 i=(ssize_t) primitive_info[0].coordinates;
5686 x=fabs(primitive_info[i-1].point.x-primitive_info[0].point.x);
5687 y=fabs(primitive_info[i-1].point.y-primitive_info[0].point.y);
5688 if ((x < MagickEpsilon) && (y < MagickEpsilon))
5689 closed_path=MagickTrue;
5690 if ((((draw_info->linecap == RoundCap) ||
5691 (closed_path != MagickFalse)) &&
5692 (draw_info->linejoin == RoundJoin)) ||
5693 (primitive_info[i].primitive != UndefinedPrimitive))
5695 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5698 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5699 clone_info->stroke_width=0.0;
5700 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5701 status&=DrawPolygonPrimitive(image,clone_info,primitive_info);
5702 clone_info=DestroyDrawInfo(clone_info);
5703 if (status != MagickFalse)
5704 status&=DrawStrokePolygon(image,draw_info,primitive_info);
5707 status&=DrawPolygonPrimitive(image,draw_info,primitive_info);
5711 image_view=DestroyCacheView(image_view);
5712 if (draw_info->compliance == SVGCompliance)
5714 status&=SetImageClipMask(image,(
Image *) NULL);
5715 status&=SetImageMask(image,(
Image *) NULL);
5717 if (draw_info->debug != MagickFalse)
5718 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
" end draw-primitive");
5719 return(status != 0 ? MagickTrue : MagickFalse);
5752 static MagickBooleanType DrawRoundLinecap(
Image *image,
5761 for (i=0; i < 4; i++)
5762 linecap[i]=(*primitive_info);
5763 linecap[0].coordinates=4;
5764 linecap[1].point.x+=2.0*MagickEpsilon;
5765 linecap[2].point.x+=2.0*MagickEpsilon;
5766 linecap[2].point.y+=2.0*MagickEpsilon;
5767 linecap[3].point.y+=2.0*MagickEpsilon;
5768 linecap[4].primitive=UndefinedPrimitive;
5769 return(DrawPolygonPrimitive(image,draw_info,linecap));
5772 static MagickBooleanType DrawStrokePolygon(
Image *image,
5794 if (draw_info->debug != MagickFalse)
5795 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5796 " begin draw-stroke-polygon");
5797 clone_info=CloneDrawInfo((
ImageInfo *) NULL,draw_info);
5798 clone_info->fill=draw_info->stroke;
5799 if (clone_info->fill_pattern != (
Image *) NULL)
5800 clone_info->fill_pattern=DestroyImage(clone_info->fill_pattern);
5801 if (clone_info->stroke_pattern != (
Image *) NULL)
5802 clone_info->fill_pattern=CloneImage(clone_info->stroke_pattern,0,0,
5803 MagickTrue,&clone_info->stroke_pattern->exception);
5804 clone_info->stroke.opacity=(Quantum) TransparentOpacity;
5805 clone_info->stroke_width=0.0;
5806 clone_info->fill_rule=NonZeroRule;
5808 for (p=primitive_info; p->primitive != UndefinedPrimitive; p+=p->coordinates)
5810 if (p->coordinates == 1)
5812 stroke_polygon=TraceStrokePolygon(draw_info,p,&image->exception);
5818 status&=DrawPolygonPrimitive(image,clone_info,stroke_polygon);
5819 stroke_polygon=(
PrimitiveInfo *) RelinquishMagickMemory(stroke_polygon);
5822 q=p+p->coordinates-1;
5823 closed_path=p->closed_subpath;
5824 if ((draw_info->linecap == RoundCap) && (closed_path == MagickFalse))
5826 status&=DrawRoundLinecap(image,draw_info,p);
5827 status&=DrawRoundLinecap(image,draw_info,q);
5830 clone_info=DestroyDrawInfo(clone_info);
5831 if (draw_info->debug != MagickFalse)
5832 (void) LogMagickEvent(DrawEvent,GetMagickModule(),
5833 " end draw-stroke-polygon");
5834 return(status != 0 ? MagickTrue : MagickFalse);
5860 MagickExport
void GetAffineMatrix(
AffineMatrix *affine_matrix)
5863 if (IsEventLogging() != MagickFalse)
5864 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5865 (void) memset(affine_matrix,0,
sizeof(*affine_matrix));
5866 affine_matrix->sx=1.0;
5867 affine_matrix->sy=1.0;
5911 assert(draw_info != (
DrawInfo *) NULL);
5912 if (IsEventLogging() != MagickFalse)
5913 (void) LogMagickEvent(TraceEvent,GetMagickModule(),
"...");
5914 (void) memset(draw_info,0,
sizeof(*draw_info));
5915 clone_info=CloneImageInfo(image_info);
5916 GetAffineMatrix(&draw_info->affine);
5917 exception=AcquireExceptionInfo();
5918 (void) QueryColorDatabase(
"#000F",&draw_info->fill,exception);
5919 (void) QueryColorDatabase(
"#FFF0",&draw_info->stroke,exception);
5920 draw_info->stroke_antialias=clone_info->antialias;
5921 draw_info->stroke_width=1.0;
5922 draw_info->fill_rule=EvenOddRule;
5923 draw_info->opacity=OpaqueOpacity;
5924 draw_info->fill_opacity=OpaqueOpacity;
5925 draw_info->stroke_opacity=OpaqueOpacity;
5926 draw_info->linecap=ButtCap;
5927 draw_info->linejoin=MiterJoin;
5928 draw_info->miterlimit=10;
5929 draw_info->decorate=NoDecoration;
5930 if (clone_info->font != (
char *) NULL)
5931 draw_info->font=AcquireString(clone_info->font);
5932 if (clone_info->density != (
char *) NULL)
5933 draw_info->density=AcquireString(clone_info->density);
5934 draw_info->text_antialias=clone_info->antialias;
5935 draw_info->pointsize=12.0;
5936 if (fabs(clone_info->pointsize) >= MagickEpsilon)
5937 draw_info->pointsize=clone_info->pointsize;
5938 draw_info->undercolor.opacity=(Quantum) TransparentOpacity;
5939 draw_info->border_color=clone_info->border_color;
5940 draw_info->compose=OverCompositeOp;
5941 if (clone_info->server_name != (
char *) NULL)
5942 draw_info->server_name=AcquireString(clone_info->server_name);
5943 draw_info->render=MagickTrue;
5944 draw_info->clip_path=MagickFalse;
5945 draw_info->debug=(GetLogEventMask() & (DrawEvent | AnnotateEvent)) != 0 ?
5946 MagickTrue : MagickFalse;
5947 option=GetImageOption(clone_info,
"direction");
5948 if (option != (
const char *) NULL)
5949 draw_info->direction=(DirectionType) ParseCommandOption(
5950 MagickDirectionOptions,MagickFalse,option);
5952 draw_info->direction=UndefinedDirection;
5953 option=GetImageOption(clone_info,
"encoding");
5954 if (option != (
const char *) NULL)
5955 (void) CloneString(&draw_info->encoding,option);
5956 option=GetImageOption(clone_info,
"family");
5957 if (option != (
const char *) NULL)
5958 (void) CloneString(&draw_info->family,option);
5959 option=GetImageOption(clone_info,
"fill");
5960 if (option != (
const char *) NULL)
5961 (void) QueryColorDatabase(option,&draw_info->fill,exception);
5962 option=GetImageOption(clone_info,
"gravity");
5963 if (option != (
const char *) NULL)
5964 draw_info->gravity=(GravityType) ParseCommandOption(MagickGravityOptions,
5965 MagickFalse,option);
5966 option=GetImageOption(clone_info,
"interline-spacing");
5967 if (option != (
const char *) NULL)
5968 draw_info->interline_spacing=GetDrawValue(option,&next_token);
5969 option=GetImageOption(clone_info,
"interword-spacing");
5970 if (option != (
const char *) NULL)
5971 draw_info->interword_spacing=GetDrawValue(option,&next_token);
5972 option=GetImageOption(clone_info,
"kerning");
5973 if (option != (
const char *) NULL)
5974 draw_info->kerning=GetDrawValue(option,&next_token);
5975 option=GetImageOption(clone_info,
"stroke");
5976 if (option != (
const char *) NULL)
5977 (void) QueryColorDatabase(option,&draw_info->stroke,exception);
5978 option=GetImageOption(clone_info,
"strokewidth");
5979 if (option != (
const char *) NULL)
5980 draw_info->stroke_width=GetDrawValue(option,&next_token);
5981 option=GetImageOption(clone_info,
"style");
5982 if (option != (
const char *) NULL)
5983 draw_info->style=(StyleType) ParseCommandOption(MagickStyleOptions,
5984 MagickFalse,option);
5985 option=GetImageOption(clone_info,
"undercolor");
5986 if (option != (
const char *) NULL)
5987 (void) QueryColorDatabase(option,&draw_info->undercolor,exception);
5988 option=GetImageOption(clone_info,
"weight");
5989 if (option != (
const char *) NULL)
5994 weight=ParseCommandOption(MagickWeightOptions,MagickFalse,option);
5996 weight=(ssize_t) StringToUnsignedLong(option);
5997 draw_info->weight=(size_t) weight;
5999 exception=DestroyExceptionInfo(exception);
6000 draw_info->signature=MagickCoreSignature;
6001 clone_info=DestroyImageInfo(clone_info);
6029 static inline double Permutate(
const ssize_t n,
const ssize_t k)
6038 for (i=k+1; i <= n; i++)
6040 for (i=1; i <= (n-k); i++)
6068 center.x=0.5*(end.x+start.x);
6069 center.y=0.5*(end.y+start.y);
6070 radius.x=fabs(center.x-start.x);
6071 radius.y=fabs(center.y-start.y);
6072 return(TraceEllipse(mvg_info,center,radius,degrees));
6075 static MagickBooleanType TraceArcPath(
MVGInfo *mvg_info,
const PointInfo start,
6077 const MagickBooleanType large_arc,
const MagickBooleanType sweep)
6114 offset=mvg_info->offset;
6115 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6116 primitive_info->coordinates=0;
6117 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6118 (fabs(start.y-end.y) < MagickEpsilon))
6119 return(TracePoint(primitive_info,end));
6120 radii.x=fabs(arc.x);
6121 radii.y=fabs(arc.y);
6122 if ((radii.x < MagickEpsilon) || (radii.y < MagickEpsilon))
6123 return(TraceLine(primitive_info,start,end));
6124 cosine=cos(DegreesToRadians(fmod((
double) angle,360.0)));
6125 sine=sin(DegreesToRadians(fmod((
double) angle,360.0)));
6126 center.x=(double) (cosine*(end.x-start.x)/2+sine*(end.y-start.y)/2);
6127 center.y=(double) (cosine*(end.y-start.y)/2-sine*(end.x-start.x)/2);
6128 delta=(center.x*center.x)/(radii.x*radii.x)+(center.y*center.y)/
6130 if (delta < MagickEpsilon)
6131 return(TraceLine(primitive_info,start,end));
6134 radii.x*=sqrt((
double) delta);
6135 radii.y*=sqrt((
double) delta);
6137 points[0].x=(double) (cosine*start.x/radii.x+sine*start.y/radii.x);
6138 points[0].y=(double) (cosine*start.y/radii.y-sine*start.x/radii.y);
6139 points[1].x=(double) (cosine*end.x/radii.x+sine*end.y/radii.x);
6140 points[1].y=(double) (cosine*end.y/radii.y-sine*end.x/radii.y);
6141 alpha=points[1].x-points[0].x;
6142 beta=points[1].y-points[0].y;
6143 if (fabs(alpha*alpha+beta*beta) < MagickEpsilon)
6144 return(TraceLine(primitive_info,start,end));
6145 factor=PerceptibleReciprocal(alpha*alpha+beta*beta)-0.25;
6150 factor=sqrt((
double) factor);
6151 if (sweep == large_arc)
6154 center.x=(double) ((points[0].x+points[1].x)/2-factor*beta);
6155 center.y=(double) ((points[0].y+points[1].y)/2+factor*alpha);
6156 alpha=atan2(points[0].y-center.y,points[0].x-center.x);
6157 theta=atan2(points[1].y-center.y,points[1].x-center.x)-alpha;
6158 if ((theta < 0.0) && (sweep != MagickFalse))
6159 theta+=2.0*MagickPI;
6161 if ((theta > 0.0) && (sweep == MagickFalse))
6162 theta-=2.0*MagickPI;
6163 arc_segments=(size_t) CastDoubleToLong(ceil(fabs((
double) (theta/(0.5*
6164 MagickPI+MagickEpsilon)))));
6167 for (i=0; i < (ssize_t) arc_segments; i++)
6169 beta=0.5*((alpha+(i+1)*theta/arc_segments)-(alpha+i*theta/arc_segments));
6170 gamma=(8.0/3.0)*sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))*
6171 sin(fmod((
double) (0.5*beta),DegreesToRadians(360.0)))/
6172 sin(fmod((
double) beta,DegreesToRadians(360.0)));
6173 points[0].x=(double) (center.x+cos(fmod((
double) (alpha+(
double) i*theta/
6174 arc_segments),DegreesToRadians(360.0)))-gamma*sin(fmod((
double) (alpha+
6175 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6176 points[0].y=(double) (center.y+sin(fmod((
double) (alpha+(
double) i*theta/
6177 arc_segments),DegreesToRadians(360.0)))+gamma*cos(fmod((
double) (alpha+
6178 (
double) i*theta/arc_segments),DegreesToRadians(360.0))));
6179 points[2].x=(double) (center.x+cos(fmod((
double) (alpha+(double) (i+1)*
6180 theta/arc_segments),DegreesToRadians(360.0))));
6181 points[2].y=(double) (center.y+sin(fmod((
double) (alpha+(double) (i+1)*
6182 theta/arc_segments),DegreesToRadians(360.0))));
6183 points[1].x=(double) (points[2].x+gamma*sin(fmod((
double) (alpha+(double)
6184 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6185 points[1].y=(double) (points[2].y-gamma*cos(fmod((
double) (alpha+(double)
6186 (i+1)*theta/arc_segments),DegreesToRadians(360.0))));
6187 p->point.x=(p == primitive_info) ? start.x : (p-1)->point.x;
6188 p->point.y=(p == primitive_info) ? start.y : (p-1)->point.y;
6189 (p+1)->point.x=(
double) (cosine*radii.x*points[0].x-sine*radii.y*
6191 (p+1)->point.y=(
double) (sine*radii.x*points[0].x+cosine*radii.y*
6193 (p+2)->point.x=(
double) (cosine*radii.x*points[1].x-sine*radii.y*
6195 (p+2)->point.y=(
double) (sine*radii.x*points[1].x+cosine*radii.y*
6197 (p+3)->point.x=(
double) (cosine*radii.x*points[2].x-sine*radii.y*
6199 (p+3)->point.y=(
double) (sine*radii.x*points[2].x+cosine*radii.y*
6201 if (i == (ssize_t) (arc_segments-1))
6203 status&=TraceBezier(mvg_info,4);
6206 p=(*mvg_info->primitive_info)+mvg_info->offset;
6207 mvg_info->offset+=p->coordinates;
6211 return(MagickFalse);
6212 mvg_info->offset=offset;
6213 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6214 primitive_info->coordinates=(
size_t) (p-primitive_info);
6215 primitive_info->closed_subpath=MagickFalse;
6216 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6218 p->primitive=primitive_info->primitive;
6224 static MagickBooleanType TraceBezier(
MVGInfo *mvg_info,
6225 const size_t number_coordinates)
6254 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6255 quantum=number_coordinates;
6256 for (i=0; i < (ssize_t) number_coordinates; i++)
6258 for (j=i+1; j < (ssize_t) number_coordinates; j++)
6260 alpha=fabs(primitive_info[j].point.x-primitive_info[i].point.x);
6261 if (alpha > (
double) MAGICK_SSIZE_MAX)
6263 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6264 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6265 return(MagickFalse);
6267 if (alpha > (
double) quantum)
6268 quantum=(
size_t) alpha;
6269 alpha=fabs(primitive_info[j].point.y-primitive_info[i].point.y);
6270 if (alpha > (
double) MAGICK_SSIZE_MAX)
6272 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6273 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6274 return(MagickFalse);
6276 if (alpha > (
double) quantum)
6277 quantum=(
size_t) alpha;
6280 coefficients=(
double *) AcquireQuantumMemory(number_coordinates,
6281 sizeof(*coefficients));
6282 quantum=MagickMin(quantum/number_coordinates,BezierQuantum);
6283 points=(
PointInfo *) AcquireQuantumMemory(quantum,number_coordinates*
6285 if ((coefficients == (
double *) NULL) || (points == (
PointInfo *) NULL))
6288 points=(
PointInfo *) RelinquishMagickMemory(points);
6289 if (coefficients != (
double *) NULL)
6290 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6291 (void) ThrowMagickException(mvg_info->exception,GetMagickModule(),
6292 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
6293 return(MagickFalse);
6295 control_points=quantum*number_coordinates;
6296 if (CheckPrimitiveExtent(mvg_info,(
double) control_points+1) == MagickFalse)
6298 points=(
PointInfo *) RelinquishMagickMemory(points);
6299 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6300 return(MagickFalse);
6302 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6306 end=primitive_info[number_coordinates-1].point;
6307 for (i=0; i < (ssize_t) number_coordinates; i++)
6308 coefficients[i]=Permutate((ssize_t) number_coordinates-1,i);
6310 for (i=0; i < (ssize_t) control_points; i++)
6315 alpha=pow((
double) (1.0-weight),(
double) number_coordinates-1.0);
6316 for (j=0; j < (ssize_t) number_coordinates; j++)
6318 point.x+=alpha*coefficients[j]*p->point.x;
6319 point.y+=alpha*coefficients[j]*p->point.y;
6320 alpha*=weight/(1.0-weight);
6324 weight+=1.0/control_points;
6330 for (i=0; i < (ssize_t) control_points; i++)
6332 if (TracePoint(p,points[i]) == MagickFalse)
6334 points=(
PointInfo *) RelinquishMagickMemory(points);
6335 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6336 return(MagickFalse);
6340 if (TracePoint(p,end) == MagickFalse)
6342 points=(
PointInfo *) RelinquishMagickMemory(points);
6343 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6344 return(MagickFalse);
6347 primitive_info->coordinates=(size_t) (p-primitive_info);
6348 primitive_info->closed_subpath=MagickFalse;
6349 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6351 p->primitive=primitive_info->primitive;
6354 points=(
PointInfo *) RelinquishMagickMemory(points);
6355 coefficients=(
double *) RelinquishMagickMemory(coefficients);
6359 static MagickBooleanType TraceCircle(
MVGInfo *mvg_info,
const PointInfo start,
6371 alpha=end.x-start.x;
6373 radius=hypot((
double) alpha,(
double) beta);
6374 offset.x=(double) radius;
6375 offset.y=(double) radius;
6378 return(TraceEllipse(mvg_info,start,offset,degrees));
6381 static MagickBooleanType TraceEllipse(
MVGInfo *mvg_info,
const PointInfo center,
6407 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6408 primitive_info->coordinates=0;
6409 if ((fabs(radii.x) < MagickEpsilon) || (fabs(radii.y) < MagickEpsilon))
6411 delta=2.0*PerceptibleReciprocal(MagickMax(radii.x,radii.y));
6413 if ((delta >= 0.0) && (delta < (MagickPI/8.0)))
6414 step=MagickPI/4.0/(MagickPI*PerceptibleReciprocal(delta)/2.0);
6415 angle.x=DegreesToRadians(arc.x);
6419 angle.y=DegreesToRadians(y);
6420 coordinates=ceil((angle.y-angle.x)/step+1.0);
6421 if (CheckPrimitiveExtent(mvg_info,coordinates) == MagickFalse)
6422 return(MagickFalse);
6423 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6424 for (p=primitive_info; angle.x < angle.y; angle.x+=step)
6426 point.x=cos(fmod(angle.x,DegreesToRadians(360.0)))*radii.x+center.x;
6427 point.y=sin(fmod(angle.x,DegreesToRadians(360.0)))*radii.y+center.y;
6428 if (TracePoint(p,point) == MagickFalse)
6429 return(MagickFalse);
6432 point.x=cos(fmod(angle.y,DegreesToRadians(360.0)))*radii.x+center.x;
6433 point.y=sin(fmod(angle.y,DegreesToRadians(360.0)))*radii.y+center.y;
6434 if (TracePoint(p,point) == MagickFalse)
6435 return(MagickFalse);
6437 primitive_info->coordinates=(size_t) (p-primitive_info);
6438 primitive_info->closed_subpath=MagickFalse;
6439 x=fabs(primitive_info[0].point.x-
6440 primitive_info[primitive_info->coordinates-1].point.x);
6441 y=fabs(primitive_info[0].point.y-
6442 primitive_info[primitive_info->coordinates-1].point.y);
6443 if ((x < MagickEpsilon) && (y < MagickEpsilon))
6444 primitive_info->closed_subpath=MagickTrue;
6445 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
6447 p->primitive=primitive_info->primitive;
6453 static MagickBooleanType TraceLine(
PrimitiveInfo *primitive_info,
6456 if (TracePoint(primitive_info,start) == MagickFalse)
6457 return(MagickFalse);
6458 if ((fabs(start.x-end.x) < MagickEpsilon) &&
6459 (fabs(start.y-end.y) < MagickEpsilon))
6461 primitive_info->primitive=PointPrimitive;
6462 primitive_info->coordinates=1;
6465 if (TracePoint(primitive_info+1,end) == MagickFalse)
6466 return(MagickFalse);
6467 (primitive_info+1)->primitive=primitive_info->primitive;
6468 primitive_info->coordinates=2;
6469 primitive_info->closed_subpath=MagickFalse;
6473 static ssize_t TracePath(
Image *image,
MVGInfo *mvg_info,
const char *path)
6477 token[MaxTextExtent] =
"";
6495 points[4] = { {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0}, {0.0, 0.0} },
6518 subpath_offset=mvg_info->offset;
6519 primitive_info=(*mvg_info->primitive_info)+mvg_info->offset;
6522 number_coordinates=0;
6525 primitive_type=primitive_info->primitive;
6527 for (p=path; *p !=
'\0'; )
6529 if (status == MagickFalse)
6531 while (isspace((
int) ((
unsigned char) *p)) != 0)
6535 last_attribute=attribute;
6536 attribute=(int) (*p++);
6546 large_arc = MagickFalse,
6547 sweep = MagickFalse;
6557 (void) GetNextToken(p,&p,MaxTextExtent,token);
6559 (void) GetNextToken(p,&p,MaxTextExtent,token);
6560 arc.x=GetDrawValue(token,&next_token);
6561 if (token == next_token)
6562 ThrowPointExpectedException(image,token);
6563 (void) GetNextToken(p,&p,MaxTextExtent,token);
6565 (void) GetNextToken(p,&p,MaxTextExtent,token);
6566 arc.y=GetDrawValue(token,&next_token);
6567 if (token == next_token)
6568 ThrowPointExpectedException(image,token);
6569 (void) GetNextToken(p,&p,MaxTextExtent,token);
6571 (void) GetNextToken(p,&p,MaxTextExtent,token);
6572 angle=GetDrawValue(token,&next_token);
6573 if (token == next_token)
6574 ThrowPointExpectedException(image,token);
6575 (void) GetNextToken(p,&p,MaxTextExtent,token);
6577 (void) GetNextToken(p,&p,MaxTextExtent,token);
6578 large_arc=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6579 (void) GetNextToken(p,&p,MaxTextExtent,token);
6581 (void) GetNextToken(p,&p,MaxTextExtent,token);
6582 sweep=StringToLong(token) != 0 ? MagickTrue : MagickFalse;
6584 (void) GetNextToken(p,&p,MaxTextExtent,token);
6585 (void) GetNextToken(p,&p,MaxTextExtent,token);
6587 (void) GetNextToken(p,&p,MaxTextExtent,token);
6588 x=GetDrawValue(token,&next_token);
6589 if (token == next_token)
6590 ThrowPointExpectedException(image,token);
6591 (void) GetNextToken(p,&p,MaxTextExtent,token);
6593 (void) GetNextToken(p,&p,MaxTextExtent,token);
6594 y=GetDrawValue(token,&next_token);
6595 if (token == next_token)
6596 ThrowPointExpectedException(image,token);
6597 end.x=(double) (attribute == (
int)
'A' ? x : point.x+x);
6598 end.y=(double) (attribute == (
int)
'A' ? y : point.y+y);
6599 status&=TraceArcPath(mvg_info,point,end,arc,angle,large_arc,sweep);
6600 q=(*mvg_info->primitive_info)+mvg_info->offset;
6601 mvg_info->offset+=q->coordinates;
6604 while (isspace((
int) ((
unsigned char) *p)) != 0)
6608 }
while (IsPoint(p) != MagickFalse);
6620 for (i=1; i < 4; i++)
6622 (void) GetNextToken(p,&p,MaxTextExtent,token);
6624 (void) GetNextToken(p,&p,MaxTextExtent,token);
6625 x=GetDrawValue(token,&next_token);
6626 if (token == next_token)
6627 ThrowPointExpectedException(image,token);
6628 (void) GetNextToken(p,&p,MaxTextExtent,token);
6630 (void) GetNextToken(p,&p,MaxTextExtent,token);
6631 y=GetDrawValue(token,&next_token);
6632 if (token == next_token)
6633 ThrowPointExpectedException(image,token);
6634 end.x=(double) (attribute == (
int)
'C' ? x : point.x+x);
6635 end.y=(double) (attribute == (
int)
'C' ? y : point.y+y);
6638 for (i=0; i < 4; i++)
6639 (q+i)->point=points[i];
6640 if (TraceBezier(mvg_info,4) == MagickFalse)
6642 q=(*mvg_info->primitive_info)+mvg_info->offset;
6643 mvg_info->offset+=q->coordinates;
6646 while (isspace((
int) ((
unsigned char) *p)) != 0)
6650 }
while (IsPoint(p) != MagickFalse);
6658 (void) GetNextToken(p,&p,MaxTextExtent,token);
6660 (void) GetNextToken(p,&p,MaxTextExtent,token);
6661 x=GetDrawValue(token,&next_token);
6662 if (token == next_token)
6663 ThrowPointExpectedException(image,token);
6664 point.x=(double) (attribute == (
int)
'H' ? x: point.x+x);
6665 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6667 q=(*mvg_info->primitive_info)+mvg_info->offset;
6668 if (TracePoint(q,point) == MagickFalse)
6670 mvg_info->offset+=q->coordinates;
6672 while (isspace((
int) ((
unsigned char) *p)) != 0)
6676 }
while (IsPoint(p) != MagickFalse);
6687 (void) GetNextToken(p,&p,MaxTextExtent,token);
6689 (void) GetNextToken(p,&p,MaxTextExtent,token);
6690 x=GetDrawValue(token,&next_token);
6691 if (token == next_token)
6692 ThrowPointExpectedException(image,token);
6693 (void) GetNextToken(p,&p,MaxTextExtent,token);
6695 (void) GetNextToken(p,&p,MaxTextExtent,token);
6696 y=GetDrawValue(token,&next_token);
6697 if (token == next_token)
6698 ThrowPointExpectedException(image,token);
6699 point.x=(double) (attribute == (
int)
'L' ? x : point.x+x);
6700 point.y=(double) (attribute == (
int)
'L' ? y : point.y+y);
6701 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6703 q=(*mvg_info->primitive_info)+mvg_info->offset;
6704 if (TracePoint(q,point) == MagickFalse)
6706 mvg_info->offset+=q->coordinates;
6708 while (isspace((
int) ((
unsigned char) *p)) != 0)
6712 }
while (IsPoint(p) != MagickFalse);
6721 if (mvg_info->offset != subpath_offset)
6723 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6724 primitive_info->coordinates=(size_t) (q-primitive_info);
6725 number_coordinates+=primitive_info->coordinates;
6727 subpath_offset=mvg_info->offset;
6732 (void) GetNextToken(p,&p,MaxTextExtent,token);
6734 (void) GetNextToken(p,&p,MaxTextExtent,token);
6735 x=GetDrawValue(token,&next_token);
6736 if (token == next_token)
6737 ThrowPointExpectedException(image,token);
6738 (void) GetNextToken(p,&p,MaxTextExtent,token);
6740 (void) GetNextToken(p,&p,MaxTextExtent,token);
6741 y=GetDrawValue(token,&next_token);
6742 if (token == next_token)
6743 ThrowPointExpectedException(image,token);
6744 point.x=(double) (attribute == (
int)
'M' ? x : point.x+x);
6745 point.y=(double) (attribute == (
int)
'M' ? y : point.y+y);
6749 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6751 q=(*mvg_info->primitive_info)+mvg_info->offset;
6752 if (TracePoint(q,point) == MagickFalse)
6754 mvg_info->offset+=q->coordinates;
6756 while (isspace((
int) ((
unsigned char) *p)) != 0)
6760 }
while (IsPoint(p) != MagickFalse);
6772 for (i=1; i < 3; i++)
6774 (void) GetNextToken(p,&p,MaxTextExtent,token);
6776 (void) GetNextToken(p,&p,MaxTextExtent,token);
6777 x=GetDrawValue(token,&next_token);
6778 if (token == next_token)
6779 ThrowPointExpectedException(image,token);
6780 (void) GetNextToken(p,&p,MaxTextExtent,token);
6782 (void) GetNextToken(p,&p,MaxTextExtent,token);
6783 y=GetDrawValue(token,&next_token);
6784 if (token == next_token)
6785 ThrowPointExpectedException(image,token);
6788 end.x=(double) (attribute == (
int)
'Q' ? x : point.x+x);
6789 end.y=(double) (attribute == (
int)
'Q' ? y : point.y+y);
6792 for (i=0; i < 3; i++)
6793 (q+i)->point=points[i];
6794 if (TraceBezier(mvg_info,3) == MagickFalse)
6796 q=(*mvg_info->primitive_info)+mvg_info->offset;
6797 mvg_info->offset+=q->coordinates;
6800 while (isspace((
int) ((
unsigned char) *p)) != 0)
6804 }
while (IsPoint(p) != MagickFalse);
6815 points[0]=points[3];
6816 points[1].x=2.0*points[3].x-points[2].x;
6817 points[1].y=2.0*points[3].y-points[2].y;
6818 for (i=2; i < 4; i++)
6820 (void) GetNextToken(p,&p,MaxTextExtent,token);
6822 (void) GetNextToken(p,&p,MaxTextExtent,token);
6823 x=GetDrawValue(token,&next_token);
6824 if (token == next_token)
6825 ThrowPointExpectedException(image,token);
6826 (void) GetNextToken(p,&p,MaxTextExtent,token);
6828 (void) GetNextToken(p,&p,MaxTextExtent,token);
6829 y=GetDrawValue(token,&next_token);
6830 if (token == next_token)
6831 ThrowPointExpectedException(image,token);
6834 end.x=(double) (attribute == (
int)
'S' ? x : point.x+x);
6835 end.y=(double) (attribute == (
int)
'S' ? y : point.y+y);
6838 if (strchr(
"CcSs",last_attribute) == (
char *) NULL)
6843 for (i=0; i < 4; i++)
6844 (q+i)->point=points[i];
6845 if (TraceBezier(mvg_info,4) == MagickFalse)
6847 q=(*mvg_info->primitive_info)+mvg_info->offset;
6848 mvg_info->offset+=q->coordinates;
6851 last_attribute=attribute;
6852 while (isspace((
int) ((
unsigned char) *p)) != 0)
6856 }
while (IsPoint(p) != MagickFalse);
6867 points[0]=points[2];
6868 points[1].x=2.0*points[2].x-points[1].x;
6869 points[1].y=2.0*points[2].y-points[1].y;
6870 for (i=2; i < 3; i++)
6872 (void) GetNextToken(p,&p,MaxTextExtent,token);
6874 (void) GetNextToken(p,&p,MaxTextExtent,token);
6875 x=GetDrawValue(token,&next_token);
6876 if (token == next_token)
6877 ThrowPointExpectedException(image,token);
6878 (void) GetNextToken(p,&p,MaxTextExtent,token);
6880 (void) GetNextToken(p,&p,MaxTextExtent,token);
6881 y=GetDrawValue(token,&next_token);
6882 if (token == next_token)
6883 ThrowPointExpectedException(image,token);
6884 end.x=(double) (attribute == (
int)
'T' ? x : point.x+x);
6885 end.y=(double) (attribute == (
int)
'T' ? y : point.y+y);
6888 if (status == MagickFalse)
6890 if (strchr(
"QqTt",last_attribute) == (
char *) NULL)
6895 for (i=0; i < 3; i++)
6896 (q+i)->point=points[i];
6897 if (TraceBezier(mvg_info,3) == MagickFalse)
6899 q=(*mvg_info->primitive_info)+mvg_info->offset;
6900 mvg_info->offset+=q->coordinates;
6903 last_attribute=attribute;
6904 while (isspace((
int) ((
unsigned char) *p)) != 0)
6908 }
while (IsPoint(p) != MagickFalse);
6919 (void) GetNextToken(p,&p,MaxTextExtent,token);
6921 (void) GetNextToken(p,&p,MaxTextExtent,token);
6922 y=GetDrawValue(token,&next_token);
6923 if (token == next_token)
6924 ThrowPointExpectedException(image,token);
6925 point.y=(double) (attribute == (
int)
'V' ? y : point.y+y);
6926 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6928 q=(*mvg_info->primitive_info)+mvg_info->offset;
6929 if (TracePoint(q,point) == MagickFalse)
6931 mvg_info->offset+=q->coordinates;
6933 while (isspace((
int) ((
unsigned char) *p)) != 0)
6937 }
while (IsPoint(p) != MagickFalse);
6947 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
6949 q=(*mvg_info->primitive_info)+mvg_info->offset;
6950 if (TracePoint(q,point) == MagickFalse)
6952 mvg_info->offset+=q->coordinates;
6954 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6955 primitive_info->coordinates=(size_t) (q-primitive_info);
6956 primitive_info->closed_subpath=MagickTrue;
6957 number_coordinates+=primitive_info->coordinates;
6959 subpath_offset=mvg_info->offset;
6965 ThrowPointExpectedException(image,token);
6970 if (status == MagickFalse)
6972 primitive_info=(*mvg_info->primitive_info)+subpath_offset;
6973 primitive_info->coordinates=(size_t) (q-primitive_info);
6974 number_coordinates+=primitive_info->coordinates;
6975 for (i=0; i < (ssize_t) number_coordinates; i++)
6978 q->primitive=primitive_type;
6980 q->method=FillToBorderMethod;
6983 return((ssize_t) number_coordinates);
6986 static MagickBooleanType TraceRectangle(
PrimitiveInfo *primitive_info,
6999 if (TracePoint(p,start) == MagickFalse)
7000 return(MagickFalse);
7004 if (TracePoint(p,point) == MagickFalse)
7005 return(MagickFalse);
7007 if (TracePoint(p,end) == MagickFalse)
7008 return(MagickFalse);
7012 if (TracePoint(p,point) == MagickFalse)
7013 return(MagickFalse);
7015 if (TracePoint(p,start) == MagickFalse)
7016 return(MagickFalse);
7018 primitive_info->coordinates=(size_t) (p-primitive_info);
7019 primitive_info->closed_subpath=MagickTrue;
7020 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7022 p->primitive=primitive_info->primitive;
7028 static MagickBooleanType TraceRoundRectangle(
MVGInfo *mvg_info,
7048 offset=mvg_info->offset;
7049 segment.x=fabs(end.x-start.x);
7050 segment.y=fabs(end.y-start.y);
7051 if ((segment.x < MagickEpsilon) || (segment.y < MagickEpsilon))
7053 (*mvg_info->primitive_info+mvg_info->offset)->coordinates=0;
7056 if (arc.x > (0.5*segment.x))
7057 arc.x=0.5*segment.x;
7058 if (arc.y > (0.5*segment.y))
7059 arc.y=0.5*segment.y;
7060 point.x=start.x+segment.x-arc.x;
7061 point.y=start.y+arc.y;
7064 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7065 return(MagickFalse);
7066 p=(*mvg_info->primitive_info)+mvg_info->offset;
7067 mvg_info->offset+=p->coordinates;
7068 point.x=start.x+segment.x-arc.x;
7069 point.y=start.y+segment.y-arc.y;
7072 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7073 return(MagickFalse);
7074 p=(*mvg_info->primitive_info)+mvg_info->offset;
7075 mvg_info->offset+=p->coordinates;
7076 point.x=start.x+arc.x;
7077 point.y=start.y+segment.y-arc.y;
7080 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7081 return(MagickFalse);
7082 p=(*mvg_info->primitive_info)+mvg_info->offset;
7083 mvg_info->offset+=p->coordinates;
7084 point.x=start.x+arc.x;
7085 point.y=start.y+arc.y;
7088 if (TraceEllipse(mvg_info,point,arc,degrees) == MagickFalse)
7089 return(MagickFalse);
7090 p=(*mvg_info->primitive_info)+mvg_info->offset;
7091 mvg_info->offset+=p->coordinates;
7092 if (CheckPrimitiveExtent(mvg_info,PrimitiveExtentPad) == MagickFalse)
7093 return(MagickFalse);
7094 p=(*mvg_info->primitive_info)+mvg_info->offset;
7095 if (TracePoint(p,(*mvg_info->primitive_info+offset)->point) == MagickFalse)
7096 return(MagickFalse);
7098 mvg_info->offset=offset;
7099 primitive_info=(*mvg_info->primitive_info)+offset;
7100 primitive_info->coordinates=(size_t) (p-primitive_info);
7101 primitive_info->closed_subpath=MagickTrue;
7102 for (i=0; i < (ssize_t) primitive_info->coordinates; i++)
7104 p->primitive=primitive_info->primitive;
7110 static MagickBooleanType TraceSquareLinecap(
PrimitiveInfo *primitive_info,
7111 const size_t number_vertices,
const double offset)
7128 for (i=1; i < (ssize_t) number_vertices; i++)
7130 dx=primitive_info[0].point.x-primitive_info[i].point.x;
7131 dy=primitive_info[0].point.y-primitive_info[i].point.y;
7132 if ((fabs((
double) dx) >= MagickEpsilon) ||
7133 (fabs((
double) dy) >= MagickEpsilon))
7136 if (i == (ssize_t) number_vertices)
7137 i=(ssize_t) number_vertices-1L;
7138 distance=hypot((
double) dx,(
double) dy);
7139 primitive_info[0].point.x=(double) (primitive_info[i].point.x+
7140 dx*(distance+offset)/distance);
7141 primitive_info[0].point.y=(double) (primitive_info[i].point.y+
7142 dy*(distance+offset)/distance);
7143 for (j=(ssize_t) number_vertices-2; j >= 0; j--)
7145 dx=primitive_info[number_vertices-1].point.x-primitive_info[j].point.x;
7146 dy=primitive_info[number_vertices-1].point.y-primitive_info[j].point.y;
7147 if ((fabs((
double) dx) >= MagickEpsilon) ||
7148 (fabs((
double) dy) >= MagickEpsilon))
7151 distance=hypot((
double) dx,(
double) dy);
7152 primitive_info[number_vertices-1].point.x=(double) (primitive_info[j].point.x+
7153 dx*(distance+offset)/distance);
7154 primitive_info[number_vertices-1].point.y=(double) (primitive_info[j].point.y+
7155 dy*(distance+offset)/distance);
7162 #define MaxStrokePad (6*BezierQuantum+360)
7163 #define CheckPathExtent(pad_p,pad_q) \
7165 if ((pad_p) > MaxBezierCoordinates) \
7166 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7168 if ((ssize_t) (p+(pad_p)) >= (ssize_t) extent_p) \
7170 if (~extent_p < (pad_p)) \
7171 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7174 extent_p+=(pad_p); \
7175 stroke_p=(PointInfo *) ResizeQuantumMemory(stroke_p,extent_p+ \
7176 MaxStrokePad,sizeof(*stroke_p)); \
7179 if ((pad_q) > MaxBezierCoordinates) \
7180 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7182 if ((ssize_t) (q+(pad_q)) >= (ssize_t) extent_q) \
7184 if (~extent_q < (pad_q)) \
7185 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7188 extent_q+=(pad_q); \
7189 stroke_q=(PointInfo *) ResizeQuantumMemory(stroke_q,extent_q+ \
7190 MaxStrokePad,sizeof(*stroke_q)); \
7193 if ((stroke_p == (PointInfo *) NULL) || (stroke_q == (PointInfo *) NULL)) \
7195 if (stroke_p != (PointInfo *) NULL) \
7196 stroke_p=(PointInfo *) RelinquishMagickMemory(stroke_p); \
7197 if (stroke_q != (PointInfo *) NULL) \
7198 stroke_q=(PointInfo *) RelinquishMagickMemory(stroke_q); \
7199 polygon_primitive=(PrimitiveInfo *) \
7200 RelinquishMagickMemory(polygon_primitive); \
7201 (void) ThrowMagickException(exception,GetMagickModule(), \
7202 ResourceLimitError,"MemoryAllocationFailed","`%s'",""); \
7203 return((PrimitiveInfo *) NULL); \
7207 typedef struct _StrokeSegment
7253 inverse_slope = {0.0, 0.0},
7260 number_vertices=primitive_info->coordinates;
7261 polygon_primitive=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7262 number_vertices+2UL,
sizeof(*polygon_primitive));
7265 (void) ThrowMagickException(exception,GetMagickModule(),
7266 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7269 (void) memcpy(polygon_primitive,primitive_info,(
size_t) number_vertices*
7270 sizeof(*polygon_primitive));
7271 offset.x=primitive_info[number_vertices-1].point.x-primitive_info[0].point.x;
7272 offset.y=primitive_info[number_vertices-1].point.y-primitive_info[0].point.y;
7273 closed_path=(fabs(offset.x) < MagickEpsilon) &&
7274 (fabs(offset.y) < MagickEpsilon) ? MagickTrue : MagickFalse;
7275 if (((draw_info->linejoin == RoundJoin) ||
7276 (draw_info->linejoin == MiterJoin)) && (closed_path != MagickFalse))
7278 polygon_primitive[number_vertices]=primitive_info[1];
7281 polygon_primitive[number_vertices].primitive=UndefinedPrimitive;
7287 for (n=1; n < (ssize_t) number_vertices; n++)
7289 dx.p=polygon_primitive[n].point.x-polygon_primitive[0].point.x;
7290 dy.p=polygon_primitive[n].point.y-polygon_primitive[0].point.y;
7291 if ((fabs(dx.p) >= MagickEpsilon) || (fabs(dy.p) >= MagickEpsilon))
7294 if (n == (ssize_t) number_vertices)
7296 if ((draw_info->linecap != RoundCap) || (closed_path != MagickFalse))
7302 sizeof(*stroke_polygon));
7303 stroke_polygon[0]=polygon_primitive[0];
7304 stroke_polygon[0].coordinates=0;
7307 return(stroke_polygon);
7309 n=(ssize_t) number_vertices-1L;
7311 extent_p=2*number_vertices;
7312 extent_q=2*number_vertices;
7313 stroke_p=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_p+MaxStrokePad,
7315 stroke_q=(
PointInfo *) AcquireQuantumMemory((
size_t) extent_q+MaxStrokePad,
7320 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7322 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7324 RelinquishMagickMemory(polygon_primitive);
7325 (void) ThrowMagickException(exception,GetMagickModule(),
7326 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7330 inverse_slope.p=0.0;
7331 if (fabs(dx.p) < MagickEpsilon)
7334 slope.p=dy.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7336 slope.p=dy.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7339 if (fabs(dy.p) < MagickEpsilon)
7342 inverse_slope.p=dx.p < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7344 inverse_slope.p=dx.p < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7349 inverse_slope.p=(-1.0*PerceptibleReciprocal(slope.p));
7351 mid=ExpandAffine(&draw_info->affine)*draw_info->stroke_width/2.0;
7352 miterlimit=(double) (draw_info->miterlimit*draw_info->miterlimit*mid*mid);
7353 if ((draw_info->linecap == SquareCap) && (closed_path == MagickFalse))
7354 (void) TraceSquareLinecap(polygon_primitive,number_vertices,mid);
7355 offset.x=sqrt((
double) (mid*mid/(inverse_slope.p*inverse_slope.p+1.0)));
7356 offset.y=(double) (offset.x*inverse_slope.p);
7357 if ((dy.p*offset.x-dx.p*offset.y) > 0.0)
7359 box_p[0].x=polygon_primitive[0].point.x-offset.x;
7360 box_p[0].y=polygon_primitive[0].point.y-offset.x*inverse_slope.p;
7361 box_p[1].x=polygon_primitive[n].point.x-offset.x;
7362 box_p[1].y=polygon_primitive[n].point.y-offset.x*inverse_slope.p;
7363 box_q[0].x=polygon_primitive[0].point.x+offset.x;
7364 box_q[0].y=polygon_primitive[0].point.y+offset.x*inverse_slope.p;
7365 box_q[1].x=polygon_primitive[n].point.x+offset.x;
7366 box_q[1].y=polygon_primitive[n].point.y+offset.x*inverse_slope.p;
7370 box_p[0].x=polygon_primitive[0].point.x+offset.x;
7371 box_p[0].y=polygon_primitive[0].point.y+offset.y;
7372 box_p[1].x=polygon_primitive[n].point.x+offset.x;
7373 box_p[1].y=polygon_primitive[n].point.y+offset.y;
7374 box_q[0].x=polygon_primitive[0].point.x-offset.x;
7375 box_q[0].y=polygon_primitive[0].point.y-offset.y;
7376 box_q[1].x=polygon_primitive[n].point.x-offset.x;
7377 box_q[1].y=polygon_primitive[n].point.y-offset.y;
7384 stroke_q[p++]=box_q[0];
7385 stroke_p[q++]=box_p[0];
7386 for (i=(ssize_t) n+1; i < (ssize_t) number_vertices; i++)
7391 dx.q=polygon_primitive[i].point.x-polygon_primitive[n].point.x;
7392 dy.q=polygon_primitive[i].point.y-polygon_primitive[n].point.y;
7393 dot_product=dx.q*dx.q+dy.q*dy.q;
7394 if (dot_product < 0.25)
7397 inverse_slope.q=0.0;
7398 if (fabs(dx.q) < MagickEpsilon)
7401 slope.q=dy.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7403 slope.q=dy.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7406 if (fabs(dy.q) < MagickEpsilon)
7409 inverse_slope.q=dx.q < 0.0 ? -1.0/MagickEpsilon : 1.0/MagickEpsilon;
7411 inverse_slope.q=dx.q < 0.0 ? 1.0/MagickEpsilon : -1.0/MagickEpsilon;
7416 inverse_slope.q=(-1.0*PerceptibleReciprocal(slope.q));
7418 offset.x=sqrt((
double) (mid*mid/(inverse_slope.q*inverse_slope.q+1.0)));
7419 offset.y=(double) (offset.x*inverse_slope.q);
7420 dot_product=dy.q*offset.x-dx.q*offset.y;
7421 if (dot_product > 0.0)
7423 box_p[2].x=polygon_primitive[n].point.x-offset.x;
7424 box_p[2].y=polygon_primitive[n].point.y-offset.y;
7425 box_p[3].x=polygon_primitive[i].point.x-offset.x;
7426 box_p[3].y=polygon_primitive[i].point.y-offset.y;
7427 box_q[2].x=polygon_primitive[n].point.x+offset.x;
7428 box_q[2].y=polygon_primitive[n].point.y+offset.y;
7429 box_q[3].x=polygon_primitive[i].point.x+offset.x;
7430 box_q[3].y=polygon_primitive[i].point.y+offset.y;
7434 box_p[2].x=polygon_primitive[n].point.x+offset.x;
7435 box_p[2].y=polygon_primitive[n].point.y+offset.y;
7436 box_p[3].x=polygon_primitive[i].point.x+offset.x;
7437 box_p[3].y=polygon_primitive[i].point.y+offset.y;
7438 box_q[2].x=polygon_primitive[n].point.x-offset.x;
7439 box_q[2].y=polygon_primitive[n].point.y-offset.y;
7440 box_q[3].x=polygon_primitive[i].point.x-offset.x;
7441 box_q[3].y=polygon_primitive[i].point.y-offset.y;
7443 if (fabs((
double) (slope.p-slope.q)) < MagickEpsilon)
7450 box_p[4].x=(double) ((slope.p*box_p[0].x-box_p[0].y-slope.q*box_p[3].x+
7451 box_p[3].y)/(slope.p-slope.q));
7452 box_p[4].y=(double) (slope.p*(box_p[4].x-box_p[0].x)+box_p[0].y);
7453 box_q[4].x=(double) ((slope.p*box_q[0].x-box_q[0].y-slope.q*box_q[3].x+
7454 box_q[3].y)/(slope.p-slope.q));
7455 box_q[4].y=(double) (slope.p*(box_q[4].x-box_q[0].x)+box_q[0].y);
7457 CheckPathExtent(MaxStrokePad,MaxStrokePad);
7458 dot_product=dx.q*dy.p-dx.p*dy.q;
7459 if (dot_product <= 0.0)
7460 switch (draw_info->linejoin)
7464 stroke_q[q++]=box_q[1];
7465 stroke_q[q++]=box_q[2];
7466 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7467 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7468 if (dot_product <= miterlimit)
7469 stroke_p[p++]=box_p[4];
7472 stroke_p[p++]=box_p[1];
7473 stroke_p[p++]=box_p[2];
7479 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7480 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7481 if (dot_product <= miterlimit)
7483 stroke_q[q++]=box_q[4];
7484 stroke_p[p++]=box_p[4];
7488 stroke_q[q++]=box_q[1];
7489 stroke_q[q++]=box_q[2];
7490 stroke_p[p++]=box_p[1];
7491 stroke_p[p++]=box_p[2];
7497 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7498 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7499 if (dot_product <= miterlimit)
7500 stroke_p[p++]=box_p[4];
7503 stroke_p[p++]=box_p[1];
7504 stroke_p[p++]=box_p[2];
7506 center=polygon_primitive[n].point;
7507 theta.p=atan2(box_q[1].y-center.y,box_q[1].x-center.x);
7508 theta.q=atan2(box_q[2].y-center.y,box_q[2].x-center.x);
7509 if (theta.q < theta.p)
7510 theta.q+=2.0*MagickPI;
7511 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.q-
7512 theta.p)/(2.0*sqrt(PerceptibleReciprocal(mid))))));
7513 CheckPathExtent(MaxStrokePad,arc_segments+MaxStrokePad);
7514 stroke_q[q].x=box_q[1].x;
7515 stroke_q[q].y=box_q[1].y;
7517 for (j=1; j < (ssize_t) arc_segments; j++)
7519 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7520 stroke_q[q].x=(double) (center.x+mid*cos(fmod((
double)
7521 (theta.p+delta_theta),DegreesToRadians(360.0))));
7522 stroke_q[q].y=(double) (center.y+mid*sin(fmod((
double)
7523 (theta.p+delta_theta),DegreesToRadians(360.0))));
7526 stroke_q[q++]=box_q[2];
7533 switch (draw_info->linejoin)
7537 stroke_p[p++]=box_p[1];
7538 stroke_p[p++]=box_p[2];
7539 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7540 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7541 if (dot_product <= miterlimit)
7542 stroke_q[q++]=box_q[4];
7545 stroke_q[q++]=box_q[1];
7546 stroke_q[q++]=box_q[2];
7552 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7553 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7554 if (dot_product <= miterlimit)
7556 stroke_q[q++]=box_q[4];
7557 stroke_p[p++]=box_p[4];
7561 stroke_q[q++]=box_q[1];
7562 stroke_q[q++]=box_q[2];
7563 stroke_p[p++]=box_p[1];
7564 stroke_p[p++]=box_p[2];
7570 dot_product=(box_q[4].x-box_p[4].x)*(box_q[4].x-box_p[4].x)+
7571 (box_q[4].y-box_p[4].y)*(box_q[4].y-box_p[4].y);
7572 if (dot_product <= miterlimit)
7573 stroke_q[q++]=box_q[4];
7576 stroke_q[q++]=box_q[1];
7577 stroke_q[q++]=box_q[2];
7579 center=polygon_primitive[n].point;
7580 theta.p=atan2(box_p[1].y-center.y,box_p[1].x-center.x);
7581 theta.q=atan2(box_p[2].y-center.y,box_p[2].x-center.x);
7582 if (theta.p < theta.q)
7583 theta.p+=2.0*MagickPI;
7584 arc_segments=(size_t) CastDoubleToLong(ceil((
double) ((theta.p-
7585 theta.q)/(2.0*sqrt((
double) (PerceptibleReciprocal(mid)))))));
7586 CheckPathExtent(arc_segments+MaxStrokePad,MaxStrokePad);
7587 stroke_p[p++]=box_p[1];
7588 for (j=1; j < (ssize_t) arc_segments; j++)
7590 delta_theta=(double) (j*(theta.q-theta.p)/arc_segments);
7591 stroke_p[p].x=(double) (center.x+mid*cos(fmod((
double)
7592 (theta.p+delta_theta),DegreesToRadians(360.0))));
7593 stroke_p[p].y=(double) (center.y+mid*sin(fmod((
double)
7594 (theta.p+delta_theta),DegreesToRadians(360.0))));
7597 stroke_p[p++]=box_p[2];
7604 inverse_slope.p=inverse_slope.q;
7613 stroke_p[p++]=box_p[1];
7614 stroke_q[q++]=box_q[1];
7618 stroke_polygon=(
PrimitiveInfo *) AcquireQuantumMemory((
size_t)
7619 (p+q+2UL*closed_path+2UL),
sizeof(*stroke_polygon));
7622 (void) ThrowMagickException(exception,GetMagickModule(),
7623 ResourceLimitError,
"MemoryAllocationFailed",
"`%s'",
"");
7624 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7625 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7628 return(stroke_polygon);
7630 for (i=0; i < (ssize_t) p; i++)
7632 stroke_polygon[i]=polygon_primitive[0];
7633 stroke_polygon[i].point=stroke_p[i];
7635 if (closed_path != MagickFalse)
7637 stroke_polygon[i]=polygon_primitive[0];
7638 stroke_polygon[i].point=stroke_polygon[0].point;
7641 for ( ; i < (ssize_t) (p+q+closed_path); i++)
7643 stroke_polygon[i]=polygon_primitive[0];
7644 stroke_polygon[i].point=stroke_q[p+q+closed_path-(i+1)];
7646 if (closed_path != MagickFalse)
7648 stroke_polygon[i]=polygon_primitive[0];
7649 stroke_polygon[i].point=stroke_polygon[p+closed_path].point;
7652 stroke_polygon[i]=polygon_primitive[0];
7653 stroke_polygon[i].point=stroke_polygon[0].point;
7655 stroke_polygon[i].primitive=UndefinedPrimitive;
7656 stroke_polygon[0].coordinates=(size_t) (p+q+2*closed_path+1);
7657 stroke_p=(
PointInfo *) RelinquishMagickMemory(stroke_p);
7658 stroke_q=(
PointInfo *) RelinquishMagickMemory(stroke_q);
7659 polygon_primitive=(
PrimitiveInfo *) RelinquishMagickMemory(polygon_primitive);
7660 return(stroke_polygon);