diff options
| author |  reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2011-09-19 21:21:45 +0000 |
|---|---|---|
| committer | reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2011-09-19 21:21:45 +0000 |
| commit | 6a87fafc5ce0d7fdf1decf8bb9dd6942f2433add (patch) | |
| tree | f28c9e6b0b632bcaf8891a0220e8b3e8af5724a1 /src/core/SkDraw.cpp | |
| parent | 567283876109f25f5f253b1b6806f35bb6103f94 (diff) | |
revert match for newAlpha to exactly match old math, so we don't drive
dumprendertree crazy
git-svn-id: http://skia.googlecode.com/svn/trunk@2287 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src/core/SkDraw.cpp')
| -rw-r--r-- | src/core/SkDraw.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/core/SkDraw.cpp b/src/core/SkDraw.cpp index 45f7bb2de9..e5027d4a55 100644 --- a/src/core/SkDraw.cpp +++ b/src/core/SkDraw.cpp @@ -862,7 +862,15 @@ bool SkDrawTreatAsHairline(const SkPaint& paint, const SkMatrix& matrix, SkScalar len1 = fast_len(dst[1]); if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { SkScalar modulate = SkScalarAve(len0, len1); +#if 0 *newAlpha = SkToU8(SkScalarRoundToInt(modulate * paint.getAlpha())); +#else + // this is the old technique, which we preserve for now so we don't + // change previous results (testing) + // the new way seems fine, its just (a tiny bit) different + int scale = (int)SkScalarMul(modulate, 256); + *newAlpha = paint.getAlpha() * scale >> 8; +#endif return true; } return false; |