tree 2d6648d5c9541edaa81cbf995ca7f993a6b4b31a
parent 12da42efe5b1b20cec63ac917ccc2aedd5d99e43
author zmo <zmo@chromium.org> 1462392051 +0900
committer Qijiang Fan <fqj@google.com> 1591294134 +0900

Implement TransformFeedbackManager in GPU command buffer.

A few design points:
1) create a "default" transform feedback for each context (instead of using
   the default 0). This will make context switching easier.
2) Emulate BindBufferRange behaviors on GL 4.1 or lower by tracking indexed
   buffer bindings.

WHat's left to be done:
1) Intercept GetIntegeri_v and GetIntegeri64_v on GL 4.1 or lower (due to the
   emulation)
2) Hook up indexed buffer bindings to Program (for uniform buffer bindings)

BUG=604436
TEST=gpu_unittests,webgl2_conformance
R=piman@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel;tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/1922633002
Cr-Commit-Position: refs/heads/master@{#391605}


CrOS-Libchrome-Original-Commit: 6c468baf6600fe4846e73203ce2e83398ee73813