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Constrain drawBitmap matrix-to-rect optimization

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bug:22962165

Optimization is not valid if matrix would flip image.

Change-Id: Ieee42390517bd3466b7d94596f0fbbe192ab757e
This commit is contained in:
Chris Craik
2015-08-18 14:52:52 -07:00
parent f2cb6f7e3e
commit e688bf7203
1 changed files with 3 additions and 1 deletions
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4
libs/hwui/DisplayListCanvas.cpp
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@@ -255,7 +255,9 @@ void DisplayListCanvas::drawBitmap(const SkBitmap& bitmap, const SkMatrix& matri
const SkPaint* paint) {
if (matrix.isIdentity()) {
drawBitmap(&bitmap, paint);
} else if (!(matrix.getType() & ~(SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask))) {
} else if (!(matrix.getType() & ~(SkMatrix::kScale_Mask | SkMatrix::kTranslate_Mask))
&& MathUtils::isPositive(matrix.getScaleX())
&& MathUtils::isPositive(matrix.getScaleY())) {
// SkMatrix::isScaleTranslate() not available in L
SkRect src;
SkRect dst;