Hi,

Give me until sunday for refactoring this and supporting the Metal backend, and the old OpenGL backend. I think that it should be possible to select the actual kind of view based on what is available(MTLDevice can be null if not supported), or by providing a command line option in the worst case.

Best regards,
Ronie

El jue., 21 mar. 2019 a las 16:48, Eliot Miranda (<eliot.miranda@gmail.com>) escribió:
 
Hi Tim,

On Thu, Mar 21, 2019 at 11:18 AM Tim Johnson <digit@sonic.net> wrote:
 
Hi,

Is running the 64-bit VM now unsupported on anything less than macOS
(nee OS X) 10.13 or 10.14?  Perhaps because of the Metal changes and
OpenGL deprecation...?

I just compiled the 64-bit VM[1] fresh and tried running it on my
10.12.6 system.  I got a Squeak window with no graphics inside (just
blackness) and a message on my terminal console:

2019-03-21 10:58:55.324 Squeak[70669:4778174] Pipeline state creation
error: Function screenQuadFragmentShader is using language version 2.1
which is incompatible with this OS.

My understanding is that this is a temporary situation, the result of Ronie having made an initial Metal implementation which needs to be revised to account for earlier versions.  The tip no longer runs on 10.13.  i hope that Ronie can solve this, or that I (we?) can work with Ronie to address this serious p[roblem quickly.
 

If so, I may need to make a choice between:

- upgrading my operating system,
- using the 32-bit VM (though my image is 64-bit),
- staying on an older VM version (though I leave it running for many
days and its memory usage balloons from ~313 megabytes to multiple
gigabytes, perhaps due to the event handling memory leak bug, which I
was hoping to leave behind).

I wonder if it would be worth the effort to handle this situation
gracefully rather than bringing up a non-functioning environment which
requires a force-quit.  Perhaps this could be easily accomplished by
including the proper minimum OS version in the Info.plist of the 64-bit
app bundle and letting macOS do the work of disallowing a launch on
older OS versions.

Thanks,
Tim J



[1] build.macos64x64/squeak.cog.spur


--
_,,,^..^,,,_
best, Eliot