Commit 9b02506c852b7f8118ba1bdde18c08da6c060482
2018-12-12T15:44:12
Cache valid draw modes with transform feedback. Enabling transform feedback can affect which draw modes are valid. We can use the exiting draw modes cache to save having to check the draw modes twice. We update the cached draw modes on any change to the transform feedback activity state. e.g. when transform feedback is started, or resumed. There are also spec changes that comes into effect in ES 3.2 or when EXT_geometry_shader is enabled. Again we cache these draw modes in the packed valid draw modes map. Will allow for faster validation for draw calls once the other checks for transform feedback are optimized. Also adds a new regression test. Bug: angleproject:2966 Change-Id: Iab901e45aab70980b9e631ec8383fdeadbd32368 Reviewed-on: https://chromium-review.googlesource.com/c/1357149 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>