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authordanakj <danakj@chromium.org>2015-05-29 15:47:52 -0700
committerCommit bot <commit-bot@chromium.org>2015-05-29 22:48:14 +0000
commite0b5478e9fd582c904d1968726c437fd365ab3ea (patch)
tree177b31070cfed2e6f4fc73a7046f459a349e7045 /cc/test/data
parent1c0bf86e1746e6ec02b2dda10384babc67d46854 (diff)
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cc: Partial tile update for one-copy raster.
When a tile on the active tree is invalidated, we record the old tile id with the raster task to playback for the new resource. If possible, we find the resource that was used for the old tile in the staging buffers pool, and reuse it, saving us from having to raster the full tile. Instead we only have to raster the part that has changed. This takes a single tab spinner in the browser ui from .30ms per frame to .08ms per frame, for a 73% reduction in raster time. R=enne, piman@chromium.org, reveman, vmpstr BUG=487387 CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel Review URL: https://codereview.chromium.org/1139063002 Cr-Commit-Position: refs/heads/master@{#332069}
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