diff options
| -rw-r--r-- | src/core/SkMaskFilter.cpp | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/src/core/SkMaskFilter.cpp b/src/core/SkMaskFilter.cpp index 9805bf9b05..0346ce0e9c 100644 --- a/src/core/SkMaskFilter.cpp +++ b/src/core/SkMaskFilter.cpp @@ -69,34 +69,42 @@ static void draw_nine_clipped(const SkMask& mask, const SkIRect& outerR, m.fBounds = mask.fBounds; m.fBounds.fRight = cx; m.fBounds.fBottom = cy; - extractMaskSubset(mask, &m); - m.fBounds.offsetTo(outerR.left(), outerR.top()); - blitClippedMask(blitter, m, m.fBounds, clipR); + if (m.fBounds.width() > 0 && m.fBounds.height() > 0) { + extractMaskSubset(mask, &m); + m.fBounds.offsetTo(outerR.left(), outerR.top()); + blitClippedMask(blitter, m, m.fBounds, clipR); + } // top-right m.fBounds = mask.fBounds; m.fBounds.fLeft = cx + 1; m.fBounds.fBottom = cy; - extractMaskSubset(mask, &m); - m.fBounds.offsetTo(outerR.right() - m.fBounds.width(), outerR.top()); - blitClippedMask(blitter, m, m.fBounds, clipR); + if (m.fBounds.width() > 0 && m.fBounds.height() > 0) { + extractMaskSubset(mask, &m); + m.fBounds.offsetTo(outerR.right() - m.fBounds.width(), outerR.top()); + blitClippedMask(blitter, m, m.fBounds, clipR); + } // bottom-left m.fBounds = mask.fBounds; m.fBounds.fRight = cx; m.fBounds.fTop = cy + 1; - extractMaskSubset(mask, &m); - m.fBounds.offsetTo(outerR.left(), outerR.bottom() - m.fBounds.height()); - blitClippedMask(blitter, m, m.fBounds, clipR); + if (m.fBounds.width() > 0 && m.fBounds.height() > 0) { + extractMaskSubset(mask, &m); + m.fBounds.offsetTo(outerR.left(), outerR.bottom() - m.fBounds.height()); + blitClippedMask(blitter, m, m.fBounds, clipR); + } // bottom-right m.fBounds = mask.fBounds; m.fBounds.fLeft = cx + 1; m.fBounds.fTop = cy + 1; - extractMaskSubset(mask, &m); - m.fBounds.offsetTo(outerR.right() - m.fBounds.width(), - outerR.bottom() - m.fBounds.height()); - blitClippedMask(blitter, m, m.fBounds, clipR); + if (m.fBounds.width() > 0 && m.fBounds.height() > 0) { + extractMaskSubset(mask, &m); + m.fBounds.offsetTo(outerR.right() - m.fBounds.width(), + outerR.bottom() - m.fBounds.height()); + blitClippedMask(blitter, m, m.fBounds, clipR); + } SkIRect innerR; innerR.set(outerR.left() + cx - mask.fBounds.left(), |