Commit 167a0f22e2ee3d56fd1439b139947f6bd9887143
2020-08-25T17:11:54
Vulkan: Fixes to transform feedback emulation path Two bugs were affecting the following scenario: - Create program with xfb and no default uniforms - Draw without xfb - Begin xfb - Draw with xfb - End xfb - map and validate The first bug was that the descriptor set that contains the xfb buffers and default uniforms was never allocated for the first draw call resulting in VVL errors and crashes. The second bug was that "Begin xfb" was not setting the xfb buffers dirty bit, which meant that after the first draw call bound dummy buffers to the descriptor set, they would not get updated. This was simultaneously fixed in 5d3a4ca4e, but the added test nevertheless tests this. Bug: angleproject:4660 Change-Id: I16eee315e39ec5a657481e54ecd0491581e886aa Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2376172 Reviewed-by: Tim Van Patten <timvp@google.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>