diff options
| author | jamesr@chromium.org <jamesr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-12-04 04:25:11 +0000 |
|---|---|---|
| committer | jamesr@chromium.org <jamesr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-12-04 04:25:11 +0000 |
| commit | 0bf9472475c27b921b18c55dad34f9d7ad15d18e (patch) | |
| tree | 5a7df801dd78b8aeb3b242588a86a88c176cfce0 /cc/layer_tree_host.h | |
| parent | 9ec9dcf80862cac08862e9e8a99121aedf45d23a (diff) | |
| download | chromium_src-0bf9472475c27b921b18c55dad34f9d7ad15d18e.zip chromium_src-0bf9472475c27b921b18c55dad34f9d7ad15d18e.tar.gz chromium_src-0bf9472475c27b921b18c55dad34f9d7ad15d18e.tar.bz2 | |
Only do full tree sync if tree is actually changed, otherwise just push properties
We only have to run the complete tree synchronization algorithm if the cc::Layer tree's
structure is actually changed, otherwise we can just push properties over since the
cc::LayerImpl tree structure is never changed outside of commit.
Since scroll offset updates are tied into the tree synchronization algorithm, we currently
have to do a full tree sync for scroll updates. Fixing this will speed up scroll operations
but requires a bit more work.
Speeds up cc_perftests tenTenSingleThread by 7.3%
BUG=161166
Review URL: https://chromiumcodereview.appspot.com/11316297
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@170881 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/layer_tree_host.h')
| -rw-r--r-- | cc/layer_tree_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/cc/layer_tree_host.h b/cc/layer_tree_host.h index fd73692..8f3087c 100644 --- a/cc/layer_tree_host.h +++ b/cc/layer_tree_host.h @@ -184,6 +184,7 @@ public: void setNeedsAnimate(); // virtual for testing virtual void setNeedsCommit(); + virtual void setNeedsFullTreeSync(); void setNeedsRedraw(); bool commitRequested() const; @@ -268,6 +269,7 @@ private: bool m_animating; bool m_needsAnimateLayers; + bool m_needsFullTreeSync; base::CancelableClosure m_prepaintCallback; |