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| author | reveman@chromium.org <reveman@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-05-29 23:14:39 +0000 |
|---|---|---|
| committer | reveman@chromium.org <reveman@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-05-29 23:14:39 +0000 |
| commit | c4eae6b8bced71bab9703586cb2dad29143fb327 (patch) | |
| tree | aa376cf37bf3203b7cb02d1b5627f4e849aea895 /skia/ext/paint_simplifier.cc | |
| parent | 62a2d508ba1b13b185c03a4fd60eaf326bd7ab9a (diff) | |
| download | chromium_src-c4eae6b8bced71bab9703586cb2dad29143fb327.zip chromium_src-c4eae6b8bced71bab9703586cb2dad29143fb327.tar.gz chromium_src-c4eae6b8bced71bab9703586cb2dad29143fb327.tar.bz2 | |
skia: Use medium filter quality in PaintSimplifier.
Preventing all bitmap filtering in the paint simplifier is a bad
idea as it's very cache unfriendly when down-sampling due to
requiring both the full size decoded image and the high/medium
quality image normally used to be cached for good performance.
However, forcing medium quality filtering is worthwhile as it's
faster than high quality and still provides caching benefits.
BUG=
Review URL: https://codereview.chromium.org/305623008
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273648 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'skia/ext/paint_simplifier.cc')
| -rw-r--r-- | skia/ext/paint_simplifier.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/skia/ext/paint_simplifier.cc b/skia/ext/paint_simplifier.cc index 8df91a8..c868257 100644 --- a/skia/ext/paint_simplifier.cc +++ b/skia/ext/paint_simplifier.cc @@ -2,6 +2,8 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. +#include <limits> + #include "skia/ext/paint_simplifier.h" #include "third_party/skia/include/core/SkPaint.h" @@ -26,6 +28,12 @@ bool PaintSimplifier::filter(SkPaint* paint, Type type) { paint->setSubpixelText(false); paint->setLCDRenderText(false); + // Reduce filter level to medium or less. Note that reducing the filter to + // less than medium can have a negative effect on performance as the filtered + // image is not cached in this case. + paint->setFilterLevel( + std::min(paint->getFilterLevel(), SkPaint::kMedium_FilterLevel)); + paint->setMaskFilter(NULL); // Uncomment this line to shade simplified tiles pink during debugging. |