[Vm-dev] Re: [OpenSmalltalk/opensmalltalk-vm] Prepare Cocoa VM for High-DPI (#22)

Tobias Pape Das.Linux at gmx.de
Wed Jul 6 20:48:47 UTC 2016


On 06.07.2016, at 22:29, John McIntosh <johnmci at smalltalkconsulting.com> wrote:

> The open/GL one has always been the default, it is faster. 
> 

Good, I'll keep that in mind.

Best regards
	-Tobias

> On Wed, Jul 6, 2016 at 1:27 PM, Tobias Pape <Das.Linux at gmx.de> wrote:
> 
> 
> On 06.07.2016, at 22:18, John McIntosh <johnmci at smalltalkconsulting.com> wrote:
> 
> > >Works for both OpenGL and CoreGraphics backends (Why do we have both?)
> >
> > Originally the code was written for CoreGraphics as a port from the original QuickDraw 1984 era logic but used CALayers to improve performance.
> > The open/GL logic was added as part of the development process but at the time Apple was transitioning to versions of OpenGL/ES etc so I left both in as part of the transition process.
> > Today the graphics layer could look at Metal as an alternate solution.
> >
> 
> That's good to know!
> I tested both ways and it turns out both work well, I have not done perf measurings, however.
> The OpenGL one needs a opt-in for high-dpi, the CG one does not.
> Aside from what is the default now, what would your pick be?
> 
> Best regards
>         -Tobias
> 
> PS: I'll merge that now
> 
> >
> > On Tue, Jul 5, 2016 at 11:27 PM, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> >
> > Hi Tobias,
> >
> >     I'm confused by https://travis-ci.org/OpenSmalltalk/opensmalltalk-vm/builds/142601096.  Who do I see the errors?  The red link to the right simply points back to the same page.
> >
> > On Tue, Jul 5, 2016 at 2:56 PM, Tobias Pape <notifications at github.com> wrote:
> >       • Works for both OpenGL and CoreGraphics backends (Why do we have both?)
> >               • Needs new abstractions for 'squeak-screen-size' and 'squeak-mouse-position' in both backends/view. Is provided.
> > You can view, comment on, or merge this pull request online at:
> >
> >   https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22
> >
> > Commit Summary
> >
> >       • Prepare Cocoa VM for High-DPI
> > File Changes
> >
> >       • M platforms/iOS/vm/Common/Classes/sqSqueakScreenAndWindow.m (6)
> >       • M platforms/iOS/vm/OSX/Squeak-Info.plist (2)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXApplication+events.m (4)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXApplication.m (3)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXCGView.h (2)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXCGView.m (130)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.h (2)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXOpenGLView.m (54)
> >       • M platforms/iOS/vm/OSX/sqSqueakOSXView.h (3)
> >       • M platforms/iOS/vm/iPhone/Classes/SqueakUIView.h (2)
> >       • M platforms/iOS/vm/iPhone/Classes/SqueakUIView.m (8)
> > Patch Links:
> >
> >       • https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22.patch
> >       • https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/22.diff
> > —
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