Re: CoreText in pango for OSX 64-bit

[Behdad Esfahbod <behdad behdad org>]

Hi Jerome,

Please produce a unified diff (-u) and attach to this bug with your comments:

  https://bugzilla.gnome.org/show_bug.cgi?id=611943

behdad

On 03/20/11 08:28, Jerome Lambourg wrote:
> Hi list,
> 
> I recently managed to make gtk+ working natively (e.g. without using X11) on my SL machine, many thanks to all that made this happening (and I know the pango team made a big effort for implementing the atsui module) !
> 
> However, with this native gtk, I had big performance issues, and some analysis showed that the culprit was the use of ATSUI in pango (in particular ATSUDirectGetLayoutDataArrayPtrFromTextLayout seem to take ages to complete).
> 
> I understand that supporting ATSUI is important for Tiger suppoirt, however this API is deprecated and is very, very slow (at least on my Snow Leopard, 64bit machine).
> 
> I thus modified pango to switch to CoreText with a 64bit compiler, for which the necessary API should always be present.
> 
> Attached is the patch of this modification, applied to pango-1.28.3.
> 
> If another procedure is required to submit patches, please tell me so, I would be glad to follow this procedure.
> 
> Regards,
> - Jerome
> 
> 
> 
> 
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