diff options
-rw-r--r-- | include/core/SkCanvas.h | 11 | ||||
-rw-r--r-- | src/core/SkCanvas.cpp | 24 |
2 files changed, 10 insertions, 25 deletions
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h index 84d10386fa..1b9f0558ba 100644 --- a/include/core/SkCanvas.h +++ b/include/core/SkCanvas.h @@ -429,7 +429,16 @@ public: @return true if the horizontal band is completely clipped out (i.e. does not intersect the current clip) */ - bool quickRejectY(SkScalar top, SkScalar bottom, EdgeType et) const; + bool quickRejectY(SkScalar top, SkScalar bottom, EdgeType et) const { + SkASSERT(SkScalarToCompareType(top) <= SkScalarToCompareType(bottom)); + const SkRectCompareType& clipR = this->getLocalClipBoundsCompareType(et); + // In the case where the clip is empty and we are provided with a + // negative top and positive bottom parameter then this test will return + // false even though it will be clipped. We have chosen to exclude that + // check as it is rare and would result double the comparisons. + return SkScalarToCompareType(top) >= clipR.fBottom + || SkScalarToCompareType(bottom) <= clipR.fTop; + } /** Return the bounds of the current clip (in local coordinates) in the bounds parameter, and return true if it is non-empty. This can be useful diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp index 5f97d68c3c..aa92dd097a 100644 --- a/src/core/SkCanvas.cpp +++ b/src/core/SkCanvas.cpp @@ -1197,30 +1197,6 @@ bool SkCanvas::quickReject(const SkPath& path, EdgeType et) const { return path.isEmpty() || this->quickReject(path.getBounds(), et); } -bool SkCanvas::quickRejectY(SkScalar top, SkScalar bottom, EdgeType et) const { - /* current impl ignores edgetype, and relies on - getLocalClipBoundsCompareType(), which always returns a value assuming - antialiasing (worst case) - */ - - if (fMCRec->fRasterClip->isEmpty()) { - return true; - } - - SkScalarCompareType userT = SkScalarToCompareType(top); - SkScalarCompareType userB = SkScalarToCompareType(bottom); - - // check for invalid user Y coordinates (i.e. empty) - // reed: why do we need to do this check, since it slows us down? - if (userT >= userB) { - return true; - } - - // check if we are above or below the local clip bounds - const SkRectCompareType& clipR = this->getLocalClipBoundsCompareType(); - return userT >= clipR.fBottom || userB <= clipR.fTop; -} - static inline int pinIntForScalar(int x) { #ifdef SK_SCALAR_IS_FIXED if (x < SK_MinS16) { |