Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias HiDpi support on the Mac. This is very good news indeed, but It is not exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System Preferences.../ Displays). By default, my 2019 15" MBP suggest half "real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this case, the new VM offers the true native resolution to Cuis / Squeak. So, in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions. Many people, me included, prefer "Looks like 1680x1050" or "Looks like 1920x1200") to have more room for other Mac apps. But in these cases, the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore. It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400. Then MacOs scales this higher virtual resolution to the actual 2880x1800, but it generates visual artifacts and a decrease in visual quality.
For my own private use, the solution is to use the EasyRes application, and set the display to the true 2880x1800 resolution. When I do this, Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users to get their true Display resolution by default, and without needing to change OS settings each time they start their favorite Smalltalk.
Thanks,
Hi Juan --
Currently, we only use the backingScaleFactor. For current systems this can only ever be 1.0 or 2.0. I have yet to discover the macOS API that let's us work with native pixels for that other (older) form other scaling on macOS.
I will open an issue for that.
Best, Marcel Am 28.04.2022 00:39:12 schrieb Juan Vuletich juanvuletich@zoho.com: Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias HiDpi support on the Mac. This is very good news indeed, but It is not exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System Preferences.../ Displays). By default, my 2019 15" MBP suggest half "real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this case, the new VM offers the true native resolution to Cuis / Squeak. So, in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions. Many people, me included, prefer "Looks like 1680x1050" or "Looks like 1920x1200") to have more room for other Mac apps. But in these cases, the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore. It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400. Then MacOs scales this higher virtual resolution to the actual 2880x1800, but it generates visual artifacts and a decrease in visual quality.
For my own private use, the solution is to use the EasyRes application, and set the display to the true 2880x1800 resolution. When I do this, Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users to get their true Display resolution by default, and without needing to change OS settings each time they start their favorite Smalltalk.
Thanks,
-- Juan Vuletich www.cuis-smalltalk.org https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev https://github.com/jvuletich https://www.linkedin.com/in/juan-vuletich-75611b3 https://independent.academia.edu/JuanVuletich https://www.researchgate.net/profile/Juan-Vuletich https://patents.justia.com/inventor/juan-manuel-vuletich https://twitter.com/JuanVuletich
Hi all --
I documented this here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/628
Best, Marcel Am 28.04.2022 09:51:22 schrieb Marcel Taeumel marcel.taeumel@hpi.de: Hi Juan --
Currently, we only use the backingScaleFactor. For current systems this can only ever be 1.0 or 2.0. I have yet to discover the macOS API that let's us work with native pixels for that other (older) form other scaling on macOS.
I will open an issue for that.
Best, Marcel Am 28.04.2022 00:39:12 schrieb Juan Vuletich juanvuletich@zoho.com: Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias HiDpi support on the Mac. This is very good news indeed, but It is not exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System Preferences.../ Displays). By default, my 2019 15" MBP suggest half "real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this case, the new VM offers the true native resolution to Cuis / Squeak. So, in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions. Many people, me included, prefer "Looks like 1680x1050" or "Looks like 1920x1200") to have more room for other Mac apps. But in these cases, the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore. It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400. Then MacOs scales this higher virtual resolution to the actual 2880x1800, but it generates visual artifacts and a decrease in visual quality.
For my own private use, the solution is to use the EasyRes application, and set the display to the true 2880x1800 resolution. When I do this, Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users to get their true Display resolution by default, and without needing to change OS settings each time they start their favorite Smalltalk.
Thanks,
-- Juan Vuletich www.cuis-smalltalk.org https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev https://github.com/jvuletich https://www.linkedin.com/in/juan-vuletich-75611b3 https://independent.academia.edu/JuanVuletich https://www.researchgate.net/profile/Juan-Vuletich https://patents.justia.com/inventor/juan-manuel-vuletich https://twitter.com/JuanVuletich
Is there a way to take advantage of that VM-change to enhance sharpness in Pharo 10 already on MacBook retina displays?
Kind regards, Steffen
Marcel Taeumel schrieb am Donnerstag, 28. April 2022 10:18:46 (+02:00):
Hi all --
I documented this here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/628
Best, Marcel
Am 28.04.2022 09:51:22 schrieb Marcel Taeumel marcel.taeumel@hpi.de:
Hi Juan --
Currently, we only use the backingScaleFactor. For current systems this can only ever be 1.0 or 2.0. I have yet to discover the macOS API that let's us work with native pixels for that other (older) form other scaling on macOS.
I will open an issue for that.
Best, Marcel
Am 28.04.2022 00:39:12 schrieb Juan Vuletich juanvuletich@zoho.com:
Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias HiDpi support on the Mac. This is very good news indeed, but It is not exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System Preferences.../ Displays). By default, my 2019 15" MBP suggest half "real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this case, the new VM offers the true native resolution to Cuis / Squeak. So, in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions. Many people, me included, prefer "Looks like 1680x1050" or "Looks like 1920x1200") to have more room for other Mac apps. But in these cases, the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore. It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400. Then MacOs scales this higher virtual resolution to the actual 2880x1800, but it generates visual artifacts and a decrease in visual quality.
For my own private use, the solution is to use the EasyRes application, and set the display to the true 2880x1800 resolution. When I do this, Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users to get their true Display resolution by default, and without needing to change OS settings each time they start their favorite Smalltalk.
Thanks,
-- Juan Vuletich www.cuis-smalltalk.org https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev https://github.com/jvuletich https://www.linkedin.com/in/juan-vuletich-75611b3 https://independent.academia.edu/JuanVuletich https://www.researchgate.net/profile/Juan-Vuletich https://patents.justia.com/inventor/juan-manuel-vuletich https://twitter.com/JuanVuletich
-- Gesendet mit Vivaldi Mail. Laden Sie Vivaldi kostenlos von vivaldi.com herunter.
Hi Steffen --
That depends on how Pharo's OSVM fork [1] currently talks to the platform in this regard. For example, if it is basically SDL2-via-FFI or SDL2-via-VM, then you could read about the HighDPI support of SDL2 regarding various platforms. I think it is SDL2-via-FFI. Maybe there is something on Stackoverflow?
From the original OSVM sources, you can learn about how to talk to macOS' CoreGraphics or Metal directly:
- https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/iOS/vm/...
- https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/iOS/vm/... - https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/iOS/vm/...
Hope this helps.
Best, Marcel
[1] https://github.com/pharo-project/opensmalltalk-vm Am 28.04.2022 11:17:30 schrieb Steffen Märcker merkste@web.de: Is there a way to take advantage of that VM-change to enhance sharpness in Pharo 10 already on MacBook retina displays?
Kind regards, Steffen
Marcel Taeumel schrieb am Donnerstag, 28. April 2022 10:18:46 (+02:00):
style="margin: 0 0 0.80ex; border-left: #0000FF 2px solid; padding-left: 1ex">
Hi all --
I documented this here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/628
Best, Marcel
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style="padding-left:10px;margin-left:0px;margin-top:20px;border-left-width:1px;border-bottom-width:1px;border-right-width:1px;border-top-width:1px;border-left-style:solid;">
Am 28.04.2022 09:51:22 schrieb Marcel Taeumel marcel.taeumel@hpi.de:
style="font-family:Arial, Helvetica, sans-serif;">
id="__MailbirdStyleContent" style="text-align:left;color:rgb(0, 0, 0);font-family:Arial;font-size:10pt;" dir="ltr"> Hi Juan --
Currently, we only use the backingScaleFactor. For current systems this can only ever be 1.0 or 2.0. I have yet to discover the macOS API that let's us work with native pixels for that other (older) form other scaling on macOS.
I will open an issue for that.
Best, Marcel
class="mb_sig">
class="history_container" type="cite" style="min-width:500px;padding-left:10px;margin-left:0px;margin-top:20px;border-left-width:1px;border-bottom-width:1px;border-right-width:1px;border-top-width:1px;border-left-style:solid;">
Am 28.04.2022 00:39:12 schrieb Juan Vuletich juanvuletich@zoho.com:
style="font-family:Arial, Helvetica, sans-serif;">Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias
HiDpi support on the Mac. This is very good news indeed, but It is not
exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System
Preferences.../ Displays). By default, my 2019 15" MBP suggest half
"real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this
case, the new VM offers the true native resolution to Cuis / Squeak. So,
in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions.
Many people, me included, prefer "Looks like 1680x1050" or "Looks like
1920x1200") to have more room for other Mac apps. But in these cases,
the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore.
It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400.
Then MacOs scales this higher virtual resolution to the actual
2880x1800, but it generates visual artifacts and a decrease in visual
quality.
For my own private use, the solution is to use the EasyRes application,
and set the display to the true 2880x1800 resolution. When I do this,
Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users
to get their true Display resolution by default, and without needing to
change OS settings each time they start their favorite Smalltalk.
Thanks,
--
Juan Vuletich
www.cuis-smalltalk.org
https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev
https://www.linkedin.com/in/juan-vuletich-75611b3
https://independent.academia.edu/JuanVuletich
https://www.researchgate.net/profile/Juan-Vuletich
https://patents.justia.com/inventor/juan-manuel-vuletich
https://twitter.com/JuanVuletich
class="viv-signature-below"> -- Gesendet mit Vivaldi Mail. Laden Sie Vivaldi kostenlos von vivaldi.com herunter.
Hi Marcel,
One small comment is that factors others than 1.0 or 2.0 are not an "older" form of scaling, but what latest MacOS does today on the latest apple hardware.
Anyway It seems it can not be done. See https://stackoverflow.com/questions/53551692/how-to-render-each-pixel-of-a-b... . Metal insists on an internal 2x buffer and resampling everything.
So, having a higher resolution in Smalltalk's Display than physical screen will waste some RAM and create slight downscaling artifacts, but it is indeed better than using lower resolution Smalltalk Display and have worse upscaling artifacts.
Besides, knowledgeable users can set their MacOS display to "half resolution" (actually the default) or use EasyRes or the like to set MacOS display to full retina resolution. Both this options give a Smalltalk display with true LCD physical resolution.
In short, I think the current behavior is the best we can have on MacOS.
Thanks,
On 4/28/2022 5:18 AM, Marcel Taeumel wrote:
Hi all --
I documented this here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/628
Best, Marcel
Am 28.04.2022 09:51:22 schrieb Marcel Taeumel marcel.taeumel@hpi.de:
Hi Juan --
Currently, we only use the backingScaleFactor. For current systems this can only ever be 1.0 or 2.0. I have yet to discover the macOS API that let's us work with native pixels for that other (older) form other scaling on macOS.
I will open an issue for that.
Best, Marcel
Am 28.04.2022 00:39:12 schrieb Juan Vuletich juanvuletich@zoho.com:
Hi Folks,
I just discovered that the recent 202204190959 Mac VM includes Tobias HiDpi support on the Mac. This is very good news indeed, but It is not exactly what most users would prefer.
On a Retina MacBook, you can set an apparent display resolution (System Preferences.../ Displays). By default, my 2019 15" MBP suggest half "real" resolution ("Looks like 1440x900" when LCD is 2880x1800). In this case, the new VM offers the true native resolution to Cuis / Squeak. So, in this case, it works perfectly well, and everything looks really great.
The problem is that MacOs supports several other apparent resolutions. Many people, me included, prefer "Looks like 1680x1050" or "Looks like 1920x1200") to have more room for other Mac apps. But in these cases, the VM doesn't offer the LCD native resolution to Cuis / Squeak anymore. It offers twice the apparent resolution, i.e. 3360x2100 or 3840x2400. Then MacOs scales this higher virtual resolution to the actual 2880x1800, but it generates visual artifacts and a decrease in visual quality.
For my own private use, the solution is to use the EasyRes application, and set the display to the true 2880x1800 resolution. When I do this, Cuis gets the corrrect Display size both with previous and newer VMs.
But it would be great if there was a way for other Cuis / Squeak users to get their true Display resolution by default, and without needing to change OS settings each time they start their favorite Smalltalk.
Thanks,
-- Juan Vuletich www.cuis-smalltalk.org https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev https://github.com/jvuletich https://www.linkedin.com/in/juan-vuletich-75611b3 https://independent.academia.edu/JuanVuletich https://www.researchgate.net/profile/Juan-Vuletich https://patents.justia.com/inventor/juan-manuel-vuletich https://twitter.com/JuanVuletich
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