tree 10743571c2c57ecb6b3ec6832b5bdac53e77c13d
parent edbd5a467b599c181c8406a252ca4afe2f5af01e
author Zhaoming Jiang <zhaoming.jiang@intel.com> 1652923968 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1652923968 +0000

Dawn: vertex buffer never OOB with zero stride count draw/Indexed

According to the spec, when call draw or drawIndexed, vertex step mode
vertex buffer never OOB if (vertexCount + firstVertex) = 0, and instance
step mode vertex buffer never OOB if (instanceCount + firstInstance) = 0.
Modify the validation implementation to be aligned with the spec, and
add corresponding unit tests.
This patch also add unit test case for (strideCount - 1) * arrayStride +
lastStride <= bound buffer size < strideCount * arrayStride.

Bug: dawn:1287
Change-Id: If444e400f5ac24f86ca12ff59fb886d8ef70e8c7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/90584
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>