[chromium] NOT FOR REVIEW - gpu memmgr context lost prototype

• Component: New Bugs
• Status: RESOLVED WONTFIX

[Christopher Cameron]

[chromium] NOT FOR REVIEW - gpu memmgr context lost prototype

[Christopher Cameron]

Created attachment 163750 [details]
Patch

[WebKit Review Bot]

Attachment 163750 [details] did not pass style-queue:

Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1
Source/WebCore/platform/graphics/chromium/cc/CCRenderer.h:53:  Missing space inside { }.  [whitespace/braces] [5]
Total errors found: 1 in 9 files


If any of these errors are false positives, please file a bug against check-webkit-style.

[James Robinson]

Comment on attachment 163750 [details]
Patch

Upload with --no-review if it's not ready for review - if the flag it set it goes into http://webkit.org/pending-review

[Christopher Cameron]

(In reply to comment #3)
> (From update of attachment 163750 [details])
> Upload with --no-review if it's not ready for review - if the flag it set it goes into http://webkit.org/pending-review

Thanks -- sorry!

[Christopher Cameron]

This works ONLY with threaded compositing (single-threaded hangs).  It also flashes checkerboards when switching to a tab that has had its context destroyed.

There are prints added that should add something like:
    <onControlledLostContext>
        In GPU process: GLContext::~GLContext (8 contexts exist)
    </onControlledLostContext>

The destruction of the renderer-side context is inside the re-creation logic.  This adds a separate function that does the renderer-side context destruction.

With just this patch, you won't see the "In GPU process" stuff -- you need  https://codereview.chromium.org/10913240 as well for that.

With just this patch, you'll also lose the context as soon as you change tabs.  With the non-WebKit patch, you'll be allowed a budget of 8 contexts.