Re: Leopard on PPC
Re: Leopard on PPC
- Subject: Re: Leopard on PPC
- From: "Sherm Pendley" <email@hidden>
- Date: Thu, 27 Mar 2008 11:59:59 -0400
On Thu, Mar 27, 2008 at 11:25 AM, Clark Cox <email@hidden> wrote:
> On Wed, Mar 26, 2008 at 4:48 PM, Sherm Pendley <email@hidden>
> wrote:
> > On Wed, Mar 26, 2008 at 7:04 PM, Lorenzo <email@hidden> wrote:
> >
> > > Hi Laurent,
> > > I am going to debug and let you know. Right now I have found these
> lines.
> > > Might they cause the trouble on Leopard && PPC?
> > >
> > > number = CFNumberCreate(NULL, kCFNumberFloatType,
> &destSize.width);
> > > options = [NSDictionary dictionaryWithObjectsAndKeys:
> > > (id) kCFBooleanTrue, (id) kCGImageSourceShouldCache,
> > > (id) kCFBooleanTrue, (id)
> > >
> kCGImageSourceCreateThumbnailFromImageIfAbsent,
> > > (id) number, (id)
> > > kCGImageSourceThumbnailMaxPixelSize,
> > > NULL];
> > >
> > >
> > >
> > > options = [NSDictionary dictionaryWithObjectsAndKeys:
> > > (id) kCFBooleanTrue, (id) kCGImageSourceShouldCache,
> > > (id) kCFBooleanTrue, (id)
> kCGImageSourceShouldAllowFloat,
> > > NULL];
> >
> >
> > I'm deeply suspicious of those typecast CFBoolRefs. Not every Core
> > Foundation class is toll-free bridged. CFNumber is, but I don't see any
> > indication in the CF reference that CFBoolean is. Have you tried using
> > NSNumber objects instead of those kCFBooleanTrue constants?
>
> CFBoolean *is* toll free bridged to NSNumber.
OK, so where is that documented then? As I said, the CFBoolean reference
says not a word about it:
<
http://developer.apple.com/documentation/CoreFoundation/Reference/CFBooleanRef/Reference/reference.html
>
By contrast, every other toll-free bridged CF class I can think of
explicitly documents that fact.
sherm--
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