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Reply to CIContext memoryLimit tips?
Ok, that helps. It sounds like the idea is that we consider increasing the limit to get better performance, rather than decrease it because it's already low. Do you have a percentage you recommend vs. physical memory?
Topic: Photos & Camera SubTopic:
Image Processing Q&A
Jun ’26
Reply to CIContext memoryLimit tips?
Still a bit confused. If the intermediates are volatile, then I would think that they wouldn't matter for the memoryLimit budget, right? So the memoryLimit is for things other than intermediates? If so, what fraction of real memory do you advise on iOS?
Topic: Photos & Camera SubTopic:
Image Processing Q&A
Jun ’26
Reply to NSFilePresenter primaryPresentedItemURL
Thanks for the information. I already have code to prompt the user for folder access and to save the bookmark. Yes, I could ask them instead for a save dialog for just the XMP file, but as you point out, that's not better from an experience standpoint. This API has been on Mac since 10.8 and the underlying OS / file system are similar between Mac and iOS, AND the security / privacy benefits of having this API on iOS are clear. Can you provide some insight as to why the API is hard to implement or (perhaps) not important to implement? At least when customers ask me why I have to do this, I can give them a proper answer.
Topic: Core OS SubTopic:
File Systems Q&A
Tags:
Jun ’26
Reply to CIContext memoryLimit tips?
Ok, that helps. It sounds like the idea is that we consider increasing the limit to get better performance, rather than decrease it because it's already low. Do you have a percentage you recommend vs. physical memory?
Topic: Photos & Camera SubTopic:
Image Processing Q&A
Replies
Boosts
Views
Activity
Jun ’26
Reply to CIContext memoryLimit tips?
Still a bit confused. If the intermediates are volatile, then I would think that they wouldn't matter for the memoryLimit budget, right? So the memoryLimit is for things other than intermediates? If so, what fraction of real memory do you advise on iOS?
Topic: Photos & Camera SubTopic:
Image Processing Q&A
Replies
Boosts
Views
Activity
Jun ’26
Reply to NSFilePresenter primaryPresentedItemURL
Thanks for the information. I already have code to prompt the user for folder access and to save the bookmark. Yes, I could ask them instead for a save dialog for just the XMP file, but as you point out, that's not better from an experience standpoint. This API has been on Mac since 10.8 and the underlying OS / file system are similar between Mac and iOS, AND the security / privacy benefits of having this API on iOS are clear. Can you provide some insight as to why the API is hard to implement or (perhaps) not important to implement? At least when customers ask me why I have to do this, I can give them a proper answer.
Topic: Core OS SubTopic:
File Systems Q&A
Tags:
Replies
Boosts
Views
Activity
Jun ’26