tree 45ef3334097b789e10ee600afd7e09b15ece08eb
parent 80f927d763211ea8e6a6377f86282809c86dc107
author Xinghua Cao <xinghua.cao@intel.com> 1594024080 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1594024080 +0000

Check FP16 support on D3D backend

True FP16 is only supported in DXC through Shader Model 6.2, also
check the value of the Native16BitShaderOpsSupported member of
D3D12_FEATURE_DATA_D3D12_OPTIONS4 to view whether hardware actually
supports FP16 operations.

BUG=dawn:426
TEST=dawn_end2end_tests

Change-Id: If675f7ba650cb1bd8c792928b70619b9ccda048a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23243
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Xinghua Cao <xinghua.cao@intel.com>