I have had some crashes in jqt when working with viewmat and code
generating image data for viewmat.

I have not yet noticed a reproducible pattern which would help me
isolate those problems. But I am also running Mojave rather than
Monterey,

FYI,

-- 
Raul

On Tue, Jan 18, 2022 at 4:11 AM Thomas McGuire <tmcguir...@gmail.com> wrote:
>
> reading a jpeg image with readimg
>
> The first time in a fresh JQt session no problems. I am able to read a jpeg 
> file an display it in viewmat
>
> On rereading the same file or a different file JQt crashes.
>
> The crash is occuring on a MacBook Pro with Monterey installed. I haven’t had 
> a chance to try it on another Mac. I am using the 903 latest release.
>
> I stepped through it in debug mode in JQt and it dies at the 64bit call to:
>
> CGContextDrawImage ctx;img;_1;_1;_1;_1;0;0;w1;h1
>
> This is line 516 in graphics_pplatimg/pplatimg.ijs
>
> There is a ContextRelease and an ImageRelease call after this:
>
>
>   CGContextRelease ctx
>   CGImageRelease img
>
>  My thought is on the latest Mac Monterey they have made a change to the 
> underlying graphics calls and something needs to be added to the release 
> statements.
>
> Anyone with a Mac have any insight into this?
>
> Tom McGuire
>
>
>
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