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| author | vmpstr@chromium.org <vmpstr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-02-06 02:13:58 +0000 |
|---|---|---|
| committer | vmpstr@chromium.org <vmpstr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-02-06 02:13:58 +0000 |
| commit | 78c64d77fe3aa64f628215cd3ac80ba788c8dbc8 (patch) | |
| tree | 849f7e501a9cc56dfdf168f52d0ec9e0bcb07562 /cc/picture_pile_impl.h | |
| parent | 0d4dba1552f4852c07de0113430c56cf1e73ca9d (diff) | |
| download | chromium_src-78c64d77fe3aa64f628215cd3ac80ba788c8dbc8.zip chromium_src-78c64d77fe3aa64f628215cd3ac80ba788c8dbc8.tar.gz chromium_src-78c64d77fe3aa64f628215cd3ac80ba788c8dbc8.tar.bz2 | |
cc: Add cheapness predictor success histogram
For picture piles that are fairly cheap to rasterize, we want to do the step on the same thread (instead of dispatching it to a different thread). As a first step, this change adds an accuracy metric for the predictor. Three new histograms are added: CheapPredictorAccuracy measures overall success rate of the predictor; CheapPredictorSafelyWrong counts the number of times the prediction was "this is a slow raster", but in reality it was fast; CheapPredictorBadlyWrong counts the number of times the prediction was "this is a fast raster", but in reality it was slow.
BUG=173426
Review URL: https://chromiumcodereview.appspot.com/12192025
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@180863 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/picture_pile_impl.h')
| -rw-r--r-- | cc/picture_pile_impl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cc/picture_pile_impl.h b/cc/picture_pile_impl.h index 2911977..157f9e2 100644 --- a/cc/picture_pile_impl.h +++ b/cc/picture_pile_impl.h @@ -49,6 +49,8 @@ class CC_EXPORT PicturePileImpl : public PicturePileBase { slow_down_raster_scale_factor_for_debug_ = factor; } + bool IsCheapInRect(gfx::Rect content_rect, float contents_scale) const; + protected: friend class PicturePile; |