Us too - we also deal with multi-GB images, 64-bit is critical to
serious scientific and imaging applications. We already support x64
on Windows (where Microsoft actually went to the effort to port most
of the API rather than hardly any of it) - this reversal in Apple's
commitment to 64-bit may spell the end of this sort of application on
the Mac.
A pity after 16 years of Mac support from my company.
Cheers,
Steve
On 13 Jun 2007, at 14:06, Jo Meder wrote:
Hi,
Jerry wrote:
I'm one of the niche people who need 64-bit - we deal with 200+Gb
images all day. We're using a cross-platform toolkit to run on Mac,
Windows and Linux, The Mac stuff is all Carbon-based and this is
going to be a real blow and will probably spell the end for our
product on the Mac. The other platforms already have 64 bit versions
- we've just been waiting for 64 bit support on the Mac. I suspect
the Mac version of our app is probably just going to fade away.
There's no chance we're going to switch toolkits.
I'm in pretty much the same boat. Our product is a landscape
visualisation/renderer app. We can hit the 32 bit address space
limit with ease. We need 64 bit support, and have been hanging out
for Leopard with 64 bit Carbon support since that was announced. We
also have a cross platform application framework, and all the Mac
stuff is Carbon. I've already started on the Mac side of things
with removing the last stuff which was said to be unsupported in 64
bit Carbon previously. Having to reimplement all the platform
specific stuff in Cocoa is going to be a serious problem, even if
it's only due to the time needed. We're only a small company, it
would be a major setback. Rearchitecting the app into a 32 bit GUI
and 64 bit backend would be just as bad and probably worse, and a
major issue is that we wouldn't need to do that for the Windows
version and so it would be a huge black mark against the Mac
version. It basically wouldn't happen.
I'm happy with the idea of needing to mix more Cocoa/Obj-C into my
mainly Carbon codebase in the future, based on Apple only seeming
to be adding Obj-C APIs for new stuff going forward. I was happy
with the changes I would need to make because 64 bit Carbon removed
a bunch of legacy stuff. To potentially have the rug pulled out
from under me entirely in this manner is very distressing though. I
was intending to have a 64 bit Mac version of our app ready to go
for Leopard's release, but if there is no 64 bit Carbon I can't
even begin to think when we might be able to do that. I'm positive
we'll have a Windows 64 bit version available long before it
happens though.
Sometimes as a Mac developer I feel like Apple is working against
me rather than working with me in delivering apps for the Mac. I'm
not talking about things like the Carbon or Intel transitions,
those were pretty straightforward from my perspective. However more
and more things seem to need to be done on Apple's terms and there
is little flexibility. I understand that Apple have put the
emphasis on Cocoa from the beginning of OS X, but Cocoa has never
offered anything compelling to me as a long time C++ Mac developer,
and particularly as someone who has for a long time been involved
in cross platform projects. What parts of Cocoa I have wanted to
take advantage of I have been able to access from my Carbon app,
which is cool. I guess I should've read between the lines more and
had less faith that Carbon was still going to be a feasible API
going forward. Ah, well, time to go and quiz my Dev Relations guy,
I guess an ADC Select membership has to be good for something...
Regards,
Jo Meder
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