Changeset 64345

2010-07-30 Nikolas Zimmermann <​nzimmermann@rim.com>

Reviewed by Dirk Schulze.

Optimize SVGResources memory usage
​https://bugs.webkit.org/show_bug.cgi?id=43236

Instead of storing pointers to all possible resources that could be applied to an element, group them in three categories:
clipper/filter/masker, marker-start/marker-mid/marker-end, and fill/stroke.

Only build the cached resources data for elements where the properties can be applied to. Maintain a static list of tagnames
for each of the three categories, to avoid doing unncessary work.

Doesn't affect any tests.

• rendering/SVGResources.cpp: (WebCore::SVGResources::SVGResources): (WebCore::clipperFilterMaskerTags): (WebCore::markerTags): (WebCore::fillAndStrokeTags): (WebCore::SVGResources::buildCachedResources): (WebCore::SVGResources::invalidateClient): (WebCore::SVGResources::resourceDestroyed): (WebCore::SVGResources::buildSetOfResources): (WebCore::SVGResources::setClipper): (WebCore::SVGResources::resetClipper): (WebCore::SVGResources::setFilter): (WebCore::SVGResources::resetFilter): (WebCore::SVGResources::setMarkerStart): (WebCore::SVGResources::resetMarkerStart): (WebCore::SVGResources::setMarkerMid): (WebCore::SVGResources::resetMarkerMid): (WebCore::SVGResources::setMarkerEnd): (WebCore::SVGResources::resetMarkerEnd): (WebCore::SVGResources::setMasker): (WebCore::SVGResources::resetMasker): (WebCore::SVGResources::setFill): (WebCore::SVGResources::resetFill): (WebCore::SVGResources::setStroke): (WebCore::SVGResources::resetStroke): (WebCore::SVGResources::dump):
• rendering/SVGResources.h: (WebCore::SVGResources::clipper): (WebCore::SVGResources::filter): (WebCore::SVGResources::markerStart): (WebCore::SVGResources::markerMid): (WebCore::SVGResources::markerEnd): (WebCore::SVGResources::masker): (WebCore::SVGResources::fill): (WebCore::SVGResources::stroke): (WebCore::SVGResources::ClipperFilterMaskerData::ClipperFilterMaskerData): (WebCore::SVGResources::ClipperFilterMaskerData::create): (WebCore::SVGResources::MarkerData::MarkerData): (WebCore::SVGResources::MarkerData::create): (WebCore::SVGResources::FillStrokeData::FillStrokeData): (WebCore::SVGResources::FillStrokeData::create):