On Tue, Dec 15, 2009 at 6:33 AM, gMail.com <[email protected]> wrote: > Thanks, > I have just read that doc > http://developer.apple.com/mac/library/documentation/Performance/Conceptual/ > ManagingMemory/Articles/MemoryAlloc.html > > So it seems I can really calloc e.g. 60MB with calloc. Can you confirm?
Yes, why wouldn't you be able to? > If not, I could use NSMutableData. If so, could I get the pointer with this? > imageBase = [data bytes]; You would want to use [data mutableBytes]. > If I use calloc, then when I call free(ptr) does the memory get release > immediately? Yes. > Or does it behave as I call [data release]; ? > > -- > Leo > >> Da: Ken Thomases <[email protected]> >> Data: Tue, 15 Dec 2009 04:50:07 -0600 >> A: "gMail.com" <[email protected]> >> Cc: <[email protected]> >> Oggetto: Re: memcpy with 64 bit >> >> On Dec 15, 2009, at 2:50 AM, gMail.com wrote: >> >>>> Da: Andrew Farmer <[email protected]> >>>> Data: Mon, 14 Dec 2009 20:17:41 -0800 >>>> >>>> On 14 Dec 2009, at 11:06, gMail.com wrote: >>>>> Handle imagesH = NewHandleClear(totImages * oneImageSize); >>>> >>>> Wait, Handle? NewHandleClear? Your use of these functions suggests >>>> that you >>>> may be working from a dangerously old textbook. There's really no >>>> reason to >>>> use them in new code. >>> >>> Ouch! That's my old code. But it works on >>> 64-bit Intel, Base SDK 10.6, x86_64, GCC 4.2, Target Mac OS X 10.6 >>> I need an handle to store image bitmap data for later reuse by the >>> OpenGL >>> API "glTexImage2D". Do you know a better way? >> >> There's no good reason why it has to be a handle. Use an >> NSMutableData or even just malloc a chunk of the heap. >> >> Handles have an unnecessary level of indirection. Back in the day, >> that came with relocatability, but it doesn't anymore. It's just >> obscure and excessively complicated. >> >> Regards, >> Ken >> > > > _______________________________________________ > > Cocoa-dev mailing list ([email protected]) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/clarkcox3%40gmail.com > > This email sent to [email protected] > -- Clark S. Cox III [email protected] _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
