tree ef336c015eb66eff3f04f902e11aba22705fb24f
parent d6af6bd7f352610952bc2f122e1b0d4a55d69090
author Jiawei Shao <jiawei.shao@intel.com> 1627432596 +0000
committer Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1627432596 +0000

Vulkan: Enable sampleRateShading for WGSL builtin variable [[sample_index]]

This patch enables VkPhysicalDeviceFeatures.sampleRateShading as is required
by the SPIR-V Capability (SampleRateShading) for the implementation of
WGSL built-in variable [[sample_index]] (gl_SampleID). Without enabling
smapleRateShading on the creation of VkDevice the Vulkan validation layer
will generate below error message:

Warning: Validation Error: [ VUID-VkShaderModuleCreateInfo-pCode-01091 ]
Object 0: handle = xxx, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0xa7bb8db6 |
vkCreateShaderModule(): The SPIR-V Capability (SampleRateShading) was declared,
but none of the requirements were met to use it. The Vulkan spec states: If
pCode declares any of the capabilities listed in the SPIR-V Environment appendix,
one of the corresponding requirements must be satisfied.

BUG=tint:471, dawn:802
TEST=dawn_end2end_tests

Change-Id: Id0c91fa48dfae37b2548ee9f3922d93dfa1da5d9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/59900
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>