Re: Leopard on PPC

FROM : Sherm Pendley
DATE : Thu Mar 27 16:59:59 2008

On Thu, Mar 27, 2008 at 11:25 AM, Clark Cox <<email_removed>> wrote:

> On Wed, Mar 26, 2008 at 4:48 PM, Sherm Pendley <sherm.<email_removed>>
> wrote:
> > On Wed, Mar 26, 2008 at 7:04 PM, Lorenzo <<email_removed>> 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--