From: Arthur Miller <arthur.miller@live.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Alan Third <alan@idiocy.org>, emacs-devel@gnu.org
Subject: Re: Image transforms as a benchmark?
Date: Sun, 12 Sep 2021 15:29:15 +0200 [thread overview]
Message-ID: <AM9PR09MB497703C0CA81AFE0573D983896D89@AM9PR09MB4977.eurprd09.prod.outlook.com> (raw)
In-Reply-To: <83a6kif0ov.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 12 Sep 2021 15:17:04 +0300")
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Arthur Miller <arthur.miller@live.com>
>> Date: Sun, 12 Sep 2021 13:45:39 +0200
>>
>> I wonder if image-rotate is handled completely by external libraries? I see
>> no effect on performance, regardless of how many time I rotate some image.
>
> It's handled by the window-system libraries: XLib or Cairo or
> ImageMagick on Unix, GDI on Windows, etc. So you shouldn't see any
> significant performance changes in these functionalities due to
> optimization switches.
Yes, I understand.
>> Is it same situation for scaling down? I see big difference when
>> scaling up images so I guess that is handled by Emacs own code?
>
> Not sure (is your build with or without ImageMagick?)
It is without ImageMagick.
prev parent reply other threads:[~2021-09-12 13:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-12 11:45 Image transforms as a benchmark? Arthur Miller
2021-09-12 12:12 ` Alan Third
2021-09-12 13:28 ` Arthur Miller
2021-09-12 15:50 ` Alan Third
2021-09-12 17:50 ` Arthur Miller
2021-09-12 12:17 ` Eli Zaretskii
2021-09-12 13:29 ` Arthur Miller [this message]
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