diff options
| author |  reed <reed@google.com> | 2014-11-11 11:00:55 -0800 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2014-11-11 11:00:55 -0800 |
| commit | d5688c509293a450c058e0cc1f4673be2931bb5c (patch) | |
| tree | 6f2b88fbe74477eb57392ada312f07a7c40ef859 /tests/PaintTest.cpp | |
| parent | bf5dd4170ffe2b3858280c233caf2053ee47c2c7 (diff) | |
modify nothingToDraw to notice filters
BUG=skia:
Review URL: https://codereview.chromium.org/717753002
Diffstat (limited to 'tests/PaintTest.cpp')
| -rw-r--r-- | tests/PaintTest.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/PaintTest.cpp b/tests/PaintTest.cpp index 4c45eed761..c307aa94bc 100644 --- a/tests/PaintTest.cpp +++ b/tests/PaintTest.cpp @@ -344,3 +344,30 @@ DEF_TEST(Paint_getHash, r) { paint.setHinting(SkPaint::kNormal_Hinting); REPORTER_ASSERT(r, paint.getHash() == defaultHash); } + +#include "SkColorMatrixFilter.h" + +DEF_TEST(Paint_nothingToDraw, r) { + SkPaint paint; + + REPORTER_ASSERT(r, !paint.nothingToDraw()); + paint.setAlpha(0); + REPORTER_ASSERT(r, paint.nothingToDraw()); + + paint.setAlpha(0xFF); + paint.setXfermodeMode(SkXfermode::kDst_Mode); + REPORTER_ASSERT(r, paint.nothingToDraw()); + + paint.setAlpha(0); + paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); + + SkColorMatrix cm; + cm.setIdentity(); // does not change alpha + paint.setColorFilter(SkColorMatrixFilter::Create(cm))->unref(); + REPORTER_ASSERT(r, paint.nothingToDraw()); + + cm.postTranslate(0, 0, 0, 1); // wacks alpha + paint.setColorFilter(SkColorMatrixFilter::Create(cm))->unref(); + REPORTER_ASSERT(r, !paint.nothingToDraw()); +} + |