Bug 168269 – Rename preferLowPowerToHighPerformance to powerPreference

• Component: WebGL
• Status: RESOLVED FIXED

[Dean Jackson]

Following the discussion in https://github.com/KhronosGroup/WebGL/pull/2283

[Radar WebKit Bug Importer]

<rdar://problem/30504444>

[Dean Jackson]

Created attachment 301433 [details]
Patch

[Chris Dumez]

Comment on attachment 301433 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=301433&action=review

r=me

> Source/WebCore/html/canvas/WebGLContextAttributes.idl:-39
> -    GLboolean preferLowPowerToHighPerformance = false;

So we're dropping support for this flag? What if there is content out there using preferLowPowerToHighPerformance = true? If we want, we could support both flags by not specifying a default value in the IDL and using std::optional<> on native side.

[Dean Jackson]

Comment on attachment 301433 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=301433&action=review

>> Source/WebCore/html/canvas/WebGLContextAttributes.idl:-39
>> -    GLboolean preferLowPowerToHighPerformance = false;
> 
> So we're dropping support for this flag? What if there is content out there using preferLowPowerToHighPerformance = true? If we want, we could support both flags by not specifying a default value in the IDL and using std::optional<> on native side.

Yeah. Normally I'd want to keep supporting it, but since no one has ever shipped a browser that implements it properly (*), I think it's ok to drop it.

(*) We added it in the latest Safari/Sierra release, but then ignored the value by always choosing low power.

[Dean Jackson]

Committed r212316: <http://trac.webkit.org/changeset/212316>