Commit a02315b06069fe82eab620e70ce4451e40014cc8

Jamie Madill 2017-02-23T14:14:47

WebGL Compat: Add DEPTH_STENCIL attachments. This is a special WebGL 1 binding point, that does not correspond to any native functionality. Due to particularities in validation we need to represent this with additional state in the Framebuffer. WebGL 2 fixes this oddity by resolving to the GLES 3 native spec. In order to pass the WebGL framebuffer objects test, we will also need a chromium-side CL to work with the additional state tracking it does in the blink layer, and an additional patch to ANGLE to clear the depth buffer before the first use (robust resource init). BUG=angleproject:1708 Change-Id: I111f8f5a451cce7de6cf281a6bc335b92dd2daf2 Reviewed-on: https://chromium-review.googlesource.com/444095 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>