[chromium] Move paintRenderedResultsToCanvas code into DrawingBuffer

[James Robinson]

[chromium] Move paintRenderedResultsToCanvas code into DrawingBuffer

[James Robinson]

Created attachment 137387 [details]
Patch

[James Robinson]

Tested on the layout tests and by manually checking printing of san angeles and http://trac.webkit.org/export/114291/trunk/LayoutTests/fast/canvas/webgl/webgl-composite-modes.html.

On http://trac.webkit.org/export/114291/trunk/LayoutTests/fast/canvas/webgl/webgl-composite-modes.html, after printing the 4 leftmost canvases (preservesDrawingBuffer==false) vanish.  This happens with or without this patch.

[Adrienne Walker]

Comment on attachment 137387 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=137387&action=review

> Source/WebCore/platform/graphics/chromium/DrawingBufferChromium.cpp:173
> +    if (!m_platformLayer || !m_platformLayer->drawsContent())
> +        return;

This code made more sense in WebGLLayerChromium.  Would it make more sense just to check for context lost explicitly than go back to the platform layer, since that really doesn't have anything to do with this function anymore?

[James Robinson]

(In reply to comment #3)
> (From update of attachment 137387 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=137387&action=review
> 
> > Source/WebCore/platform/graphics/chromium/DrawingBufferChromium.cpp:173
> > +    if (!m_platformLayer || !m_platformLayer->drawsContent())
> > +        return;
> 
> This code made more sense in WebGLLayerChromium.  Would it make more sense just to check for context lost explicitly than go back to the platform layer, since that really doesn't have anything to do with this function anymore?

This check in particular?  This check is actually kind of silly - we never get here without having a layer (see WebGLRenderingContext::paintRenderingResultsToCanvas()) and I agree it'd be better to check explicitly for a lost context here.

[James Robinson]

Created attachment 137463 [details]
tweak checks in DrawingBufferChromium

[James Robinson]

Created attachment 137465 [details]
with more of teh compile

[Adrienne Walker]

Comment on attachment 137465 [details]
with more of teh compile

R=me.

[WebKit Review Bot]

Comment on attachment 137465 [details]
with more of teh compile

Clearing flags on attachment: 137465

Committed r114344: <http://trac.webkit.org/changeset/114344>

[WebKit Review Bot]

All reviewed patches have been landed.  Closing bug.