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sampler: Add missing gpu_resource_id() getter #328

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@MarijnS95 MarijnS95 commented Jul 13, 2024

According to the upstream docs and the Metal Shader Converter implementation the SamplerState type has a way to get access to its MTLResourceID on the GPU: https://developer.apple.com/documentation/metal/mtlsamplerstate/3974101-gpuresourceid

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The label is explicitly marked as readonly in the documentation, so I wouldn't rely on it being settable after the creation of the sampler state.

@MarijnS95 MarijnS95 changed the title sampler: Add missing gpu_resource_id() getter and set_label() setter sampler: Add missing gpu_resource_id() getter Jul 14, 2024
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Right there's another documentation page that actually describes this.

It seems inconsistent at first, but after a while most *Descriptor based types (that are created from a *Descriptor with a var label? { get set }) appear to have a readonly var label? { get } on the final object/instance.

According to the upstream docs and the Metal Shader Converter
implementation the `SamplerState` type has a way to get access to its
`MTLResourceID` on the GPU:
https://developer.apple.com/documentation/metal/mtlsamplerstate/3974101-gpuresourceid
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