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From: Aaron Jensen <aaronjensen@gmail.com>
To: Alan Third <alan@idiocy.org>
Cc: Robert Pluim <rpluim@gmail.com>, 32932@debbugs.gnu.org
Subject: bug#32932: 27.0.50; render bugs on macOS Mojave
Date: Sat, 1 Feb 2020 15:05:45 -0800	[thread overview]
Message-ID: <CAHyO48zk-iRBXvBJoFd5yWRgy4XZuFi=W5QkwSf_vm6k4mqw-A@mail.gmail.com> (raw)
In-Reply-To: <20200201212034.GA30983@breton.holly.idiocy.org>

On Sat, Feb 1, 2020 at 1:20 PM Alan Third <alan@idiocy.org> wrote:
>
> Can you try the attached patch? It looks like it’s faster here, but I
> can’t really tell.

Moving the point is definitely faster. It's still slower as the window
gets larger, but that's not really new behavior (27 is that way too).
Scrolling speed is still unbearable, however.

I don't know if you've seen or read this, but I came across this just
now, but haven't looked too closely:

https://books.google.com/books?id=QyFta827Y0gC&pg=PA85&lpg=PA85&dq=quartz+double+buffering&source=bl&ots=seLTG6QxV9&sig=ACfU3U35VUiIowXtgJsaky73k5aAPSNRlw&hl=en&ppis=_c&sa=X&ved=2ahUKEwj_uOzZt7HnAhXQrJ4KHR8qDo0Q6AEwAXoECAwQAQ#v=onepage&q=quartz%20double%20buffering&f=false

I'm curious if there's some nugget in there that might lead to a way
to do normal double buffering instead of this approach, since:

"Buffering. Although you can use layers for this purpose, you
shouldn’t need to because the Quartz Compositor makes buffering on
your part unnecessary. If you must draw to a buffer, use a layer
instead of a bitmap graphics context." via
https://books.google.com/books?id=QyFta827Y0gC&pg=PA85&lpg=PA85&dq=quartz+double+buffering&source=bl&ots=seLTG6QxV9&sig=ACfU3U35VUiIowXtgJsaky73k5aAPSNRlw&hl=en&ppis=_c&sa=X&ved=2ahUKEwj_uOzZt7HnAhXQrJ4KHR8qDo0Q6AEwAXoECAwQAQ#v=onepage&q=quartz%20double%20buffering&f=false





  reply	other threads:[~2020-02-01 23:05 UTC|newest]

Thread overview: 144+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-04 13:05 bug#32932: 27.0.50; render bugs on macOS Mojave Aaron Jensen
2018-10-04 14:07 ` Alan Third
2018-10-04 17:33   ` Charles A. Roelli
2018-10-04 17:48   ` Aaron Jensen
2018-10-04 18:25     ` Alan Third
     [not found]       ` <CAHyO48xS6yOWVvw2Gu+Hjumahe5BC3-EA+Mwztz4831Ac2U6aA@mail.gmail.com>
2018-10-04 18:45         ` Alan Third
2018-10-04 21:51           ` Alan Third
2018-10-04 23:03             ` Aaron Jensen
     [not found]               ` <CAHyO48zMuX95RB7hRYxAxt6wH_XB6sF1kmnbWZWmjpPhnkqjdg@mail.gmail.com>
2018-10-09  7:15                 ` Boris Buliga
2018-10-10 18:27                   ` Alan Third
2018-10-11  3:40                     ` Aaron Jensen
2018-10-14  8:19                       ` Aaron Jensen
2018-10-14  9:04                         ` Boris Buliga
2018-10-14 18:20                         ` Alan Third
2018-10-14 20:17                           ` Aaron Jensen
2018-10-16  4:53                             ` Boris Buliga
2018-10-16  8:39                               ` Boris Buliga
2018-10-16 19:04                               ` Aaron Jensen
2018-10-19 16:26                                 ` Aaron Jensen
2018-10-19 18:48                                   ` Alan Third
2018-10-19 19:24                                     ` Aaron Jensen
2018-10-20 20:04                                       ` Alan Third
2018-10-23  2:15                                         ` Aaron Jensen
2018-10-24 10:42                                           ` Alan Third
2018-10-29  2:18                                             ` Aaron Jensen
2018-10-29 16:09                                               ` Alan Third
2018-10-29 17:41                                                 ` Boris Buliga
2018-10-30  5:56                                                 ` Aaron Jensen
2018-10-30 15:35                                                   ` Boris Buliga
2018-10-31 21:59                                                     ` Alan Third
2018-11-01  4:25                                                       ` Aaron Jensen
2018-10-31 17:12                                                   ` Alan Third
2018-11-01  4:51                                                     ` Aaron Jensen
2018-11-01  4:58                                                       ` Aaron Jensen
2018-11-01  5:11                                                         ` Aaron Jensen
2018-11-01  6:13                                                           ` Boris Buliga
2018-11-01  6:51                                                             ` Aaron Jensen
2018-11-01 18:10                                                               ` Eli Zaretskii
2018-11-01 19:52                                                                 ` Aaron Jensen
2018-11-01 20:12                                                                   ` Eli Zaretskii
2018-11-01 20:29                                                                     ` Aaron Jensen
2018-11-03  9:23                                                                       ` Eli Zaretskii
2018-11-01 22:55                                                                 ` Alan Third
2018-11-03  9:31                                                                   ` Eli Zaretskii
2018-11-03 20:36                                                                     ` Alan Third
2018-11-03 21:03                                                                       ` Eli Zaretskii
2018-11-04 13:24                                                                         ` Alan Third
2018-11-04 20:11                                                                           ` Alan Third
2018-11-05 16:11                                                                             ` Aaron Jensen
2018-11-05 18:55                                                                               ` Alan Third
2018-11-06  4:04                                                                                 ` Aaron Jensen
2018-11-06 14:58                                                                                   ` Aaron Jensen
2018-11-08 15:21                                                                                     ` Alan Third
2018-11-08 15:35                                                                                       ` Eli Zaretskii
2018-11-08 16:17                                                                                         ` Alan Third
2018-11-08 16:28                                                                                           ` Aaron Jensen
2018-11-08 23:21                                                                                             ` Alan Third
2018-11-09  1:02                                                                                               ` Aaron Jensen
2018-11-09  9:08                                                                                                 ` bug#32932: [PATCH v2] Fix more drawing bugs in NS port (bug#32932) Alan Third
2018-11-09 13:45                                                                                                   ` Aaron Jensen
2018-11-09 14:15                                                                                                     ` Aaron Jensen
2018-11-13 22:13                                                                                                       ` Alan Third
2018-11-14 17:08                                                                                                         ` Aaron Jensen
2018-11-14 18:19                                                                                                           ` Alan Third
2018-11-16  1:20                                                                                                             ` Aaron Jensen
2018-11-19 22:35                                                                                                               ` Alan Third
2018-11-20  2:30                                                                                                                 ` Aaron Jensen
2018-11-23 18:17                                                                                                                   ` Alan Third
2018-11-26 16:20                                                                                                                     ` Aaron Jensen
2019-01-25 14:02                                                                                                                       ` Aaron Jensen
2019-01-25 22:01                                                                                                                         ` Alan Third
2018-11-09  8:02                                                                                               ` bug#32932: 27.0.50; render bugs on macOS Mojave Eli Zaretskii
2018-11-08 16:51                                                                                           ` Eli Zaretskii
2018-11-08 23:23                                                                                             ` Alan Third
2018-11-03 17:57                                                                   ` Aaron Jensen
2018-11-03 19:09                                                                     ` Alan Third
2018-11-03 20:51                                                                       ` Alan Third
2018-11-03 23:56                                                                         ` Aaron Jensen
2018-11-04 13:24                                                                           ` Alan Third
2018-11-04 17:12                                                                             ` Aaron Jensen
2018-11-04 18:28                                                                               ` Eli Zaretskii
2018-10-04 19:43       ` Aaron Jensen
2018-11-03 17:56 ` Aaron Jensen
2018-11-03 18:17   ` Eli Zaretskii
2018-11-05 16:20     ` Aaron Jensen
2018-11-27  1:42 ` bug#32932: 26.2: Too many flickers with normal operations on macOS 10.13.6 Zhang Haijun
2019-11-11 18:16 ` bug#32932: 27.0.50; render bugs on macOS Mojave Alan Third
2019-11-12 13:27   ` Robert Pluim
2019-11-12 14:38     ` Alan Third
2020-01-25 12:44       ` Alan Third
2020-01-25 13:37         ` Eli Zaretskii
2020-01-27 11:06           ` Robert Pluim
2020-01-27 20:45             ` Alan Third
2020-01-28  3:21               ` Eli Zaretskii
2020-01-28 18:23                 ` Alan Third
2020-01-28 19:35 ` Aaron Jensen
2020-01-28 20:07   ` Eli Zaretskii
2020-01-28 20:11     ` Aaron Jensen
2020-01-28 20:21       ` Eli Zaretskii
2020-01-28 20:24         ` Aaron Jensen
2020-01-29 10:08   ` Alan Third via Bug reports for GNU Emacs, the Swiss army knife of text editors
2020-01-29 16:32     ` Aaron Jensen
2020-01-29 20:04       ` Alan Third
2020-01-30  1:40         ` Aaron Jensen
2020-01-30 19:11           ` Alan Third
2020-01-30 20:07             ` Aaron Jensen
2020-01-31 14:57               ` Robert Pluim
2020-01-31 20:23                 ` Alan Third
2020-01-31 20:26                   ` Aaron Jensen
2020-02-01  1:26                     ` Aaron Jensen
2020-02-01 14:22                       ` Alan Third
2020-02-01 16:29                         ` Aaron Jensen
2020-02-01 21:20                           ` Alan Third
2020-02-01 23:05                             ` Aaron Jensen [this message]
2020-02-02 13:42                               ` Alan Third
2020-01-31  1:16             ` Stefan Kangas
2020-01-31 21:34 ` Mattias Engdegård
2020-02-02 12:31 ` Mattias Engdegård
2020-02-02 13:46   ` Alan Third
2020-02-02 16:49     ` Aaron Jensen
2020-02-02 22:30       ` Alan Third
2020-02-02 22:44         ` Mattias Engdegård
2020-02-03  0:14         ` Aaron Jensen
2020-02-03  7:39           ` Alan Third
2020-02-03  8:16             ` Aaron Jensen
2020-02-03 20:44               ` Alan Third
2020-02-03 20:46                 ` Aaron Jensen
2020-02-03 21:30                   ` Alan Third
2020-02-06 18:04                     ` Aaron Jensen
2020-02-07 20:18                       ` Alan Third
2020-02-08  1:26                         ` Aaron Jensen
2020-02-08 14:13                           ` Alan Third
2020-02-08 16:45                             ` Aaron Jensen
2020-02-10  7:44                               ` Alan Third
2020-02-10 15:21                                 ` Aaron Jensen
2020-02-10 17:14                                   ` Aaron Jensen
2020-02-10 21:33                                   ` Alan Third
2020-02-13 17:24                                     ` Aaron Jensen
2020-02-13 18:32                                       ` Alan Third
2020-02-03 16:04             ` Mattias Engdegård
2020-02-03 16:05               ` Aaron Jensen
2020-02-03 16:09                 ` Mattias Engdegård
2020-02-03 21:28           ` Alan Third
2020-02-10  8:59 ` Robert Pluim

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