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| author | brianderson@chromium.org <brianderson@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-20 21:25:29 +0000 |
|---|---|---|
| committer | brianderson@chromium.org <brianderson@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-20 21:25:29 +0000 |
| commit | 7e7bfb887402975231447ccbdb8a636aeba644d9 (patch) | |
| tree | 935cc112922cdd1eab0ec68d21a0fefe72028190 /cc/output/output_surface.h | |
| parent | 11b9a3b34801022a851e230088ecb4a9070982c7 (diff) | |
| download | chromium_src-7e7bfb887402975231447ccbdb8a636aeba644d9.zip chromium_src-7e7bfb887402975231447ccbdb8a636aeba644d9.tar.gz chromium_src-7e7bfb887402975231447ccbdb8a636aeba644d9.tar.bz2 | |
cc: Trigger BeginFrames that were just missed retroactively
If a SwapAck, SetNeedsBeginFrame, or a Swap occurs *just* after
a BeginFrame is received and skipped by the compositor, this
patch tries the BeginFrame retroactively if it's possible
we might still be able to produce a frame in time.
Also fixes the include guards of begin_frame_args.h.
BUG=243384,243500
Review URL: https://chromiumcodereview.appspot.com/17315011
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@207571 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/output/output_surface.h')
| -rw-r--r-- | cc/output/output_surface.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cc/output/output_surface.h b/cc/output/output_surface.h index 3172f41..738e650 100644 --- a/cc/output/output_surface.h +++ b/cc/output/output_surface.h @@ -154,6 +154,7 @@ class CC_EXPORT OutputSurface : public FrameRateControllerClient { scoped_ptr<FrameRateController> frame_rate_controller_; int max_frames_pending_; int pending_swap_buffers_; + bool needs_begin_frame_; bool begin_frame_pending_; // Forwarded to OutputSurfaceClient but threaded through OutputSurface @@ -167,12 +168,19 @@ class CC_EXPORT OutputSurface : public FrameRateControllerClient { void SetExternalDrawConstraints(const gfx::Transform& transform, gfx::Rect viewport); + // virtual for testing. + virtual base::TimeDelta RetroactiveBeginFramePeriod(); + virtual void PostCheckForRetroactiveBeginFrame(); + void CheckForRetroactiveBeginFrame(); + private: OutputSurfaceClient* client_; friend class OutputSurfaceCallbacks; void SetContext3D(scoped_ptr<WebKit::WebGraphicsContext3D> context3d); + BeginFrameArgs skipped_begin_frame_args_; + DISALLOW_COPY_AND_ASSIGN(OutputSurface); }; |