[cairo-bugs] [Bug 99021] New: bad rendering showing text with CAIRO_ANTIALIAS_BEST

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99021

            Bug ID: 99021
           Summary: bad rendering showing text with CAIRO_ANTIALIAS_BEST
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: image backend
          Assignee: chris at chris-wilson.co.uk
          Reporter: jason at aquaticape.us
        QA Contact: cairo-bugs at cairographics.org

Created attachment 128375
  --> https://bugs.freedesktop.org/attachment.cgi?id=128375&action=edit
image of bad text rendering

Setting the antialias font option to CAIRO_ANTIALIAS_BEST makes text rendering
bad, as shown in the following program.

cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                                       80, 40);
cairo_t *cr = cairo_create (surface);
cairo_move_to (cr, 5, 30);
cairo_set_font_size (cr, 30);
cairo_font_options_t *font_options = cairo_font_options_create ();
cairo_font_options_set_antialias (font_options, CAIRO_ANTIALIAS_BEST);
cairo_set_font_options (cr, font_options);
cairo_show_text (cr, "hello");
cairo_surface_write_to_png (surface, "out.png");

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