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authorvmpstr@chromium.org <vmpstr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-12-06 00:01:50 +0000
committervmpstr@chromium.org <vmpstr@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-12-06 00:01:50 +0000
commit24835e9056711da23091ce0116e7ca41d1bdf279 (patch)
tree10908bd30fb36949baeb93802a7a7dace28cbd32 /build/grit_target.gypi
parent858a2037f49d48d512c2c952f2246b4159af2a9e (diff)
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cc: Added tile bundles
This patch adds TileBundles to cc. Currently, in impl side painting we work with Tiles. A PictureLayerTiling creates enough tiles to cover its rect (and registers them with the tile manager), then it updates the priorities of each of the tile, and finally informs TileManager to do its work. TileManager sorts and assigns memory to tiles, and begins rasterization. With TileBundles, the tiling creates TileBundles (initially 2x2 tiles) to contain tiles. Update tile priorities now only happens on a per bundle basis. In the initial patch, TileManager still pulls out each individual tile for processing. **** Note to Perf Sheriffs **** This patch affects performance of several of cc_perftests: - PictureLayerTilingPerfTest.Invalidate This test is expected to regress slightly, but not too much. - PictureLayerTilingPerfTest.UpdateTilePriorities This test's performance should improve greatly. - TileManagerPerfTest.ManageTiles This test _should_ remain roughly the same, but there might be some up or down as the result of the patch. Review URL: https://codereview.chromium.org/62283012 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239074 0039d316-1c4b-4281-b951-d872f2087c98
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