这是indexloc提供的服务，不要输入任何密码
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Add API surface for feature levels #4868

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Merged
merged 3 commits into from
Sep 11, 2024
Merged

Add API surface for feature levels #4868

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e1cb3e8
Add API surface for feature levels
kainino0x Sep 10, 2024
e706930
rename to capabilityLevel
kainino0x Sep 11, 2024
e7f7a0e
Revert "rename to capabilityLevel"
kainino0x Sep 11, 2024
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15 changes: 12 additions & 3 deletions spec/index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -2286,18 +2286,26 @@ interface GPU {
<div data-timeline=device>
[=Device timeline=] |initialization steps|:

1. Let |adapter| be `null`.
1. If the user agent chooses to return an adapter:
1. All of the requirements in the following steps |must| be met.

<div class=validusage>
1. |options|.{{GPURequestAdapterOptions/featureLevel}} |must| be `undefined`.
</div>

If they are met **and** the user agent chooses to return an adapter:

1. Set |adapter| to an [=adapter=] chosen according to
the rules in [[#adapter-selection]] and the criteria in |options|,
adhering to [[#adapter-capability-guarantees]].

The [=supported limits=] of the adapter must adhere to the requirements
defined in [[#limits]].

1. If |adapter| meets the criteria of a [=fallback adapter=] set
|adapter|.{{adapter/[[fallback]]}} to `true`.

Otherwise:

1. Let |adapter| be `null`.
1. Issue the subsequent steps on <var data-timeline=content>contentTimeline</var>.
</div>
<div data-timeline=content>
Expand Down Expand Up @@ -2424,6 +2432,7 @@ configuration is suitable for the application.

<script type=idl>
dictionary GPURequestAdapterOptions {
any featureLevel;
GPUPowerPreference powerPreference;
boolean forceFallbackAdapter = false;
};
Expand Down