Bug 230648 – [GPU Process] support rendering Apple Pay buttons

• Component: New Bugs
• Status: RESOLVED FIXED

[Devin Rousso]

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[Devin Rousso]

<rdar://problem/72061985>

[Devin Rousso]

Created attachment 438987 [details]
Patch

[Sam Weinig]

Comment on attachment 438987 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=438987&action=review

> Source/WebCore/ChangeLog:16
> +        While it is possible to create a dedicated display list item for this, we don't want to do
> +        that because `PKDrawApplePayButtonWithCornerRadius` involves dealing with PDFs, which are
> +        not as secure as we'd like for use in the GPUProcess.

What about doing something like we do for DrawGlyphsRecorder and use a CGContextDelegate to get the underlying draw calls and serialize those? (This is of course assuming CGContextDelegate doesn't have dedicate DrawPDFPage delegation, but I didn't think it did)?

[Devin Rousso]

Comment on attachment 438987 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=438987&action=review

>> Source/WebCore/ChangeLog:16
>> +        not as secure as we'd like for use in the GPUProcess.
> 
> What about doing something like we do for DrawGlyphsRecorder and use a CGContextDelegate to get the underlying draw calls and serialize those? (This is of course assuming CGContextDelegate doesn't have dedicate DrawPDFPage delegation, but I didn't think it did)?

Interesting!  I had no idea that existed =D  And yeah I dont see anything related to PDF.

Frankly though I'm not really sure I have the time to investigate this right now.  I'm happy to file a followup to investigate this further if I get a chance in a few weeks.

The initial desire for this change is to just get this working in a GPUProcess world, which I think this achieves.

[Tim Horton]

Comment on attachment 438987 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=438987&action=review

>>> Source/WebCore/ChangeLog:16
>>> +        not as secure as we'd like for use in the GPUProcess.
>> 
>> What about doing something like we do for DrawGlyphsRecorder and use a CGContextDelegate to get the underlying draw calls and serialize those? (This is of course assuming CGContextDelegate doesn't have dedicate DrawPDFPage delegation, but I didn't think it did)?
> 
> Interesting!  I had no idea that existed =D  And yeah I dont see anything related to PDF.
> 
> Frankly though I'm not really sure I have the time to investigate this right now.  I'm happy to file a followup to investigate this further if I get a chance in a few weeks.
> 
> The initial desire for this change is to just get this working in a GPUProcess world, which I think this achieves.

We don't have a general purpose recorder, only drawglyphs, so I think this is OK for now (you could imagine us having implemented the whole of GPUP that way instead, but we did not).

[EWS]

Committed r283331 (242352@main): <https://commits.webkit.org/242352@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 438987 [details].

[Sam Weinig]

Please at least make sure there are tests for drawing and scaling these at different sizes to ensure we don't regress that.

[Sam Weinig]

Please at least make sure there are tests for drawing and scaling these at different sizes to ensure we don't regress that.