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| author | brettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-09-24 05:39:15 +0000 |
|---|---|---|
| committer | brettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2010-09-24 05:39:15 +0000 |
| commit | ca4847f0a19f9565b6ca19fa47729bb746f5f736 (patch) | |
| tree | b8dd17796537fa49e00f66b8d3f9ac8d1c90b9d8 /chrome/renderer/render_widget.h | |
| parent | 61b4a61bf1ea2a610c076cb28de59aa1137b3c4f (diff) | |
| download | chromium_src-ca4847f0a19f9565b6ca19fa47729bb746f5f736.zip chromium_src-ca4847f0a19f9565b6ca19fa47729bb746f5f736.tar.gz chromium_src-ca4847f0a19f9565b6ca19fa47729bb746f5f736.tar.bz2 | |
Add some optimizations to plugin painting.
The simplest one is to disable blending when the plugin is opaque. The more
complicated one is to bypass webkit painting the background of plugins when we
know the plugin to be always on top and also opaque. The always on top flag is
currently set by a new "Private2" API. Bypassing WebKit makes animations
faster.
This is a re-land of the previous patch with a trivial compilation fix. This
also adds a clip rect to the GetBitmap... function so we can properly handle
plugins in nested iframes with proper clipping.
BUG=none
TEST=none
Original review URL: http://codereview.chromium.org/3421030
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60426 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/renderer/render_widget.h')
| -rw-r--r-- | chrome/renderer/render_widget.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/chrome/renderer/render_widget.h b/chrome/renderer/render_widget.h index 6d80b62..e1dacf3 100644 --- a/chrome/renderer/render_widget.h +++ b/chrome/renderer/render_widget.h @@ -201,6 +201,21 @@ class RenderWidget : public IPC::Channel::Listener, virtual void DidInitiatePaint() {} virtual void DidFlushPaint() {} + // Detects if a suitable opaque plugin covers the given paint bounds with no + // compositing necessary. + // + // Returns true if the paint can be handled by just blitting the plugin + // bitmap. In this case, the location, clipping, and ID of the backing store + // will be filled into the given output parameters. + // + // A return value of false means optimized painting can not be used and we + // should continue with the normal painting code path. + virtual bool GetBitmapForOptimizedPluginPaint( + const gfx::Rect& paint_bounds, + TransportDIB** dib, + gfx::Rect* location, + gfx::Rect* clip); + // Sets the "hidden" state of this widget. All accesses to is_hidden_ should // use this method so that we can properly inform the RenderThread of our // state. |