commit 807d6509045c3aca317156965aae0c1240f3f087
author Egon Elbre <egonelbre@gmail.com> Mon Oct 10 12:35:17 2016 +0300
committer Alex Brainman <alex.brainman@gmail.com> Wed Oct 12 12:24:32 2016 +0000
tree 341ea64a2856d3256e23a674019b5b80c6cbed7f
parent 42596718c7d74defcb4a418607da11392242479b

shiny/driver/gldriver: try multiple ANGLE platforms

On Windows mobile/gl uses ANGLE for EGL. ANGLE has multiple backends
and for some graphics cards one of these may work better than other.

Automatically try to choose the next platform when initialization fails:
1. Default
2. Direct3D 11
3. Direct3D 9
4. Direct3D 11 with WARP

Change-Id: Ief0911574afaf4ded3f578a1cd7b9639828f3486
Reviewed-on: https://go-review.googlesource.com/30754
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>