tree fe213d94c0a8c9259045a106c044e57edbf2a11c
parent ef8dee90a7e6e5531ad95c758f33bc7c5fe9691f
author Yunchao He <yunchao.he@intel.com> 1575935968 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1575935968 +0000

Implement readonly storage buffer on OpenGL backend

Note that storage buffer and readonly storage buffer may not be
supported in vertex shader on OpenGL backend. In OpenGL Spec 4.6,
the minimum value of MAX_VERTEX_SHADER_STORAGE_BLOCKS is 0.

BUG=dawn:180, dawn:284

Change-Id: Ib637a61e4eee0a0996c0da33f492e075fd94e1e7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14380
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>