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List:       cairo
Subject:    Re: [cairo] Using instance of cairo_font_face_t from multiple threads
From:       Behdad Esfahbod <behdad () behdad ! org>
Date:       2020-11-30 23:14:33
Message-ID: CAF63+7Xg6YBc4RG53vGijVg9cV5hbJQ1XhGhdKJF_bLFhbLshg () mail ! gmail ! com
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The answer is yes, modulo bugs.

behdad
http://behdad.org/


On Thu, Jul 23, 2020 at 10:56 AM Michal Sudolsky <sudolskym@gmail.com>
wrote:

> Hi,
>
> Is it ok to use the same instance of cairo_font_face_t from multiple
> threads?
>
> For example creating font face like this:
>
> cairo_font_face_t *font_face = cairo_ft_font_face_create_for_ft_face(face,
> FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP);
>
> Then in multiple threads use it for creating scaled fonts or for setting
> font of cairo context and rendering:
>
> 1. cairo_scaled_font_t *scaled_font = cairo_scaled_font_create(font_face,
> m, m, options);
> 2. cairo_set_font_face(ctx, font_face);
>
> --
> cairo mailing list
> cairo@cairographics.org
> https://lists.cairographics.org/mailman/listinfo/cairo
>

[Attachment #5 (text/html)]

<div dir="ltr">The answer is yes, modulo bugs.<div><br><div><div><div dir="ltr" \
class="gmail_signature" data-smartmail="gmail_signature">behdad<br><a \
href="http://behdad.org/" \
target="_blank">http://behdad.org/</a></div></div><br></div></div></div><br><div \
class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 23, 2020 at 10:56 \
AM Michal Sudolsky &lt;<a \
href="mailto:sudolskym@gmail.com">sudolskym@gmail.com</a>&gt; \
wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px \
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div \
dir="ltr">Hi,<div><br></div><div>Is it ok to use the same instance of \
cairo_font_face_t from multiple threads?<br></div><div><br></div><div>For example \
creating font face like this:</div><div><br></div><div>cairo_font_face_t *font_face = \
cairo_ft_font_face_create_for_ft_face(face, FT_LOAD_NO_HINTING | \
FT_LOAD_NO_BITMAP);<br></div><div><br></div><div>Then in multiple threads use it for \
creating scaled fonts or for setting font of cairo context and \
rendering:</div><div><br></div><div>1.  cairo_scaled_font_t *scaled_font = \
cairo_scaled_font_create(font_face, m, m, options);</div><div>2.  \
                cairo_set_font_face(ctx, font_face);</div><div><br></div></div>
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target="_blank">cairo@cairographics.org</a><br> <a \
href="https://lists.cairographics.org/mailman/listinfo/cairo" rel="noreferrer" \
target="_blank">https://lists.cairographics.org/mailman/listinfo/cairo</a><br> \
</blockquote></div>



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