Commit d550d96fb6a1efbcd748b1a4996b145eb0a07be5
2024-09-30T00:00:00
Metal: Remove allowSamplerCompareLod feature * Apple2 GPUs do not support setting texture sampler compare state via Metal API. As a result, all sample_compare functions including those without LOD options do not work on Apple2 GPUs. This feature was attempting to incorrectly emulate a subset of sample_compare functions with a hard-coded compare state. There are no plans to support shadow samplers on Apple2 GPUs, as it would require non-trivial emulation, so this feature is not needed. * Metal on macOS 10.15 only supports constant zero as the level parameter for sample_compare functions. Ignoring the requested level and using zero on old OS versions is a better fallback than dropping the parameter altogether because many applications set the level to zero anyway. Bug: angleproject:365066518 Bug: angleproject:368059227 Change-Id: I2cdc0bda5842842d62ad5663427da7f1f37bddda Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5907619 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>