[webkit-reviews] review requested: [Bug 32575] sourceGraphic wrong if positive x, y is >0 and objectBB is selected on Filter : [Attachment 44951] Fix of Filter source position

[bugzilla-daemon at webkit.org]

Dirk Schulze <krit at webkit.org> has asked  for review:
Bug 32575: sourceGraphic wrong if positive x,y is >0 and objectBB is selected
on Filter
https://bugs.webkit.org/show_bug.cgi?id=32575

Attachment 44951: Fix of Filter source position
https://bugs.webkit.org/attachment.cgi?id=44951&action=review

------- Additional Comments from Dirk Schulze <krit at webkit.org>
On SVG Filters, the rest of the source graphic gets clipped to the filter rest.
This helps us to minimize the size of intermediate ImageBuffers. If the
position moves to the right or to the bottom, we have to adjust the
GraphicContext of this intermediate ImageBuffer.
This patch fixes the adjustment of the context, according to the clipping.