GitLab

Current fast path for webgl uploading video frame is to render YUV
planars to a RGBA8 intermediate gl texture, then do gpu to gpu copy
to update the dst webgl texture.

It is possible to optimize the uploading path by drawing YUV planars
to SkSurface backed by dst webgl texture directly. This will save the
extra gpu-gpu texture copy.

BUG=1108154

Change-Id: I81598aa864337bc6ce944b09e26542c22ec073eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2384337Reviewed-by: Khushal <khushalsagar@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
Cr-Commit-Position: refs/heads/master@{#805231}