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| author | epenner@chromium.org <epenner@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-01-23 03:22:15 +0000 |
|---|---|---|
| committer | epenner@chromium.org <epenner@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-01-23 03:22:15 +0000 |
| commit | 34351ccaf33b4201990387a3c7e1e8719b4c8fbf (patch) | |
| tree | 17e343500a2c5c64796d2cf94840ba2c9ff25963 /cc/output_surface.h | |
| parent | eba04f08da9daae5f2cd4e6dee6f5547c9c60b43 (diff) | |
| download | chromium_src-34351ccaf33b4201990387a3c7e1e8719b4c8fbf.zip chromium_src-34351ccaf33b4201990387a3c7e1e8719b4c8fbf.tar.gz chromium_src-34351ccaf33b4201990387a3c7e1e8719b4c8fbf.tar.bz2 | |
cc: Reduce renderer_main thread priority when prefer_smoothness is set
This tracks how many compositors prefer smooth frame-rate,
and throttles/resets the main thread's priority as
appropriate. Compositors in the same process share the same
thread, so we track this count in a static int.
All thread priorities use #ifdefs for reduced risk and
easier merging. This needs to be abstracted and enabled
on other platforms (http://crbug.com/170549)
BUG=164651
Review URL: https://chromiumcodereview.appspot.com/12026004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@178225 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/output_surface.h')
| -rw-r--r-- | cc/output_surface.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cc/output_surface.h b/cc/output_surface.h index 4906ec3..4bc3180 100644 --- a/cc/output_surface.h +++ b/cc/output_surface.h @@ -57,6 +57,10 @@ class CC_EXPORT OutputSurface : public WebKit::WebCompositorOutputSurface { // capabilities().has_parent_compositor. The implementation may destroy or // steal the contents of the CompositorFrame passed in. virtual void SendFrameToParentCompositor(CompositorFrame*) = 0; + + // Notifies frame-rate smoothness preference. If true, all non-critical + // processing should be stopped, or lowered in priority. + virtual void UpdateSmoothnessTakesPriority(bool prefer_smoothness) {} }; } // namespace cc |