SkMatrix.h File Reference

#include "include/core/SkRect.h"
#include "include/private/SkMacros.h"
#include "include/private/SkTo.h"

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Classes
class	SkMatrix

Macros
#define	SK_SUPPORT_LEGACY_MATRIX_RECTTORECT

Enumerations
enum	SkApplyPerspectiveClip { SkApplyPerspectiveClip::kNo, SkApplyPerspectiveClip::kYes }
	When we transform points through a matrix containing perspective (the bottom row is something other than 0,0,1), the bruteforce math can produce confusing results (since we might divide by 0, or a negative w value). More...

Macro Definition Documentation

SK_SUPPORT_LEGACY_MATRIX_RECTTORECT

#define SK_SUPPORT_LEGACY_MATRIX_RECTTORECT

Enumeration Type Documentation

SkApplyPerspectiveClip

enum SkApplyPerspectiveClip

strong

When we transform points through a matrix containing perspective (the bottom row is something other than 0,0,1), the bruteforce math can produce confusing results (since we might divide by 0, or a negative w value).

By default, methods that map rects and paths will apply perspective clipping, but this can be changed by specifying kYes to those methods.

Enumerator
kNo	Don't pre-clip the geometry before applying the (perspective) matrix.
kYes	Do pre-clip the geometry before applying the (perspective) matrix.