Re: Cross-SDK CGImageCreate
Re: Cross-SDK CGImageCreate
- Subject: Re: Cross-SDK CGImageCreate
- From: Eric Albert <email@hidden>
- Date: Sun, 9 Oct 2005 22:34:04 -0700
On Oct 8, 2005, at 3:02 PM, David Dunham wrote:
> If I want my code to run on Intel, I need to use
kCGBitmapByteOrder32Host. This constant doesn't exist prior to
10.4, and I need to run on 10.2. So my first thought was simply to
define it.
But that doesn't work, since the argument of CGImageCreate has
changed in 10.4 -- it used to be CGImageAlphaInfo, and is now
> CGBitmapInfo.
Both CGImageAlphaInfo and CGBitmapInfo are 32-bit values (at least as
far as the calling convention is concerned), so I'm a bit confused as
to how the change is causing any trouble here. Can you explain that
a bit?
Clearly it's runtime-compatible. But CodeWarrior at least considers
them different types and complains. (I can't use Xcode for this
because of some [filed] bugs, though the header file is different no
matter what IDE I'd use.)
I don't doubt you that CodeWarrior's complaining here, but given that
CodeWarrior can't build for Intel I'm a bit perplexed as to how you're
hitting this.
Regardless, one simple workaround would be to only use that constant
under #if __LITTLE_ENDIAN__. That'll never be defined when building in
CodeWarrior.
-Eric
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