Created attachment 128375 [details] 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");
I can reproduce the problem. I took a quick look at this has "something" to do with _render_glyph_outline() in src/cairo-ft-font.c. Ignoring the actual passed-in value here and forcing something else is enough to trigger this problem or make it go away. So either this is a bug in freetype or _fill_xrender_bitmap in the same source file mis-converts something here. I don't know and I can't figure out more right now.
Hi, I'm having the same issue here. The rendering is totally broken. I've produced a test case for it.
Created attachment 136971 [details] Test case (source code which generate a png)
This happens with cairo 1.15.10 and freetype 2.9. I've set it as blocker.
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