Fw: [cairo] Problem with fonts

[Baptiste Gaillard]

Yes, there is a freetype.lib library in the lib folder of the GTK directory,
so I suppose that Cairo is compiled with the freetype support, the contrary
will be surprising !!!
Thanks.

Baptiste


----- Original Message ----- 
From: "Behdad Esfahbod" <behdad at behdad.org>
To: "Baptiste Gaillard" <b_gaillard at hotmail.com>
Cc: <cairo at cairographics.org>
Sent: Tuesday, July 25, 2006 5:37 PM
Subject: Re: Fw: [cairo] Problem with fonts


> On Tue, 2006-07-25 at 04:23 -0400, Baptiste Gaillard wrote:
>> I'm using Cairo with The Glade/GTK+ for Windows Toolkit. It includes 
>> Cairo,
>> do you know if Cairo is compiled with the freetype engine in this package 
>> ?
>
> I have no idea.  Do you see a freetype dll?
>
>> > ----- Original Message ----- 
>> > From: "Behdad Esfahbod" <behdad at behdad.org>
>> > To: "Baptiste Gaillard" <b_gaillard at hotmail.com>
>> > Cc: <cairo at cairographics.org>
>> > Sent: Monday, July 24, 2006 9:11 PM
>> > Subject: Re: Fw: [cairo] Problem with fonts
>> >
>> >
>> >>I assume your cairo is compiled without FreeType.  Then it's a problem
>> >> in the Win32 font backend.  I have no idea about that backend.
>> >>
>> >> behdad
>> >>
>> >> On Mon, 2006-07-24 at 09:47 +0200, Baptiste Gaillard wrote:
>> >>> Ok, the result is the same with the Vera font take from
>> >>> C:\Windows\fonts\Vera.ttf. I attach 2 files to this message, the 
>> >>> first
>> >>> show
>> >>> the result using AGG, the second using Cairo, the font size is the 
>> >>> same.
>> >>> But
>> >>> there is no anti-aliasing with Cairo !!
>> >>>
>> >>> Here is the code I used:
>> >>>
>> >>> int main(int argc, char** argv) {
>> >>>  cairo_surface_t *surface;
>> >>>   cairo_t *cr;
>> >>>
>> >>>  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, WIDTH,
>> >>> HEIGHT);
>> >>>  cr = cairo_create (surface);
>> >>>
>> >>>
>> >>>  cairo_set_source_rgb(cr, 1,1,1);
>> >>>  cairo_set_line_width(cr, 1);
>> >>>  cairo_set_antialias (cr,CAIRO_ANTIALIAS_GRAY);
>> >>>
>> >>>  cairo_font_options_t* font_options =  cairo_font_options_create();
>> >>>  cairo_font_options_set_antialias(font_options, 
>> >>> CAIRO_ANTIALIAS_GRAY);
>> >>>  cairo_set_font_options (cr, font_options);
>> >>>
>> >>>  cairo_select_font_face (cr, "Vera.ttf", CAIRO_FONT_SLANT_NORMAL,
>> >>> CAIRO_FONT_WEIGHT_NORMAL);
>> >>>  cairo_set_font_size (cr, 16);
>> >>>
>> >>>  cairo_glyph_t glyph;
>> >>>  glyph.index = 0x24;
>> >>>
>> >>>  for(unsigned j = 0; j < 10000; j += 50)
>> >>>   for(unsigned i = 0; i < 10000; i += 50) {
>> >>>    cairo_move_to (cr, i, j);
>> >>>    glyph.x = i;
>> >>>    glyph.y = j;
>> >>>    cairo_show_glyphs(cr, &glyph, 1);
>> >>>   }
>> >>>
>> >>> cairo_surface_write_to_png  (surface, "test.png");
>> >>> cairo_font_options_destroy(font_options);
>> >>> cairo_destroy (cr);
>> >>> cairo_surface_destroy (surface);
>> >>>
>> >>> return 0;
>> >>> }
>> >>>
>> >>> Thanks.
>> >>>
>> >>> Baptiste
>> >>>
>> >>> ----- Original Message ----- 
>> >>> From: "Behdad Esfahbod" <behdad at behdad.org>
>> >>> To: "Baptiste Gaillard" <b_gaillard at hotmail.com>
>> >>> Cc: <cairo at cairographics.org>
>> >>> Sent: Friday, July 21, 2006 9:36 PM
>> >>> Subject: Re: Fw: [cairo] Problem with fonts
>> >>>
>> >>>
>> >>> > On Thu, 2006-07-20 at 06:47 -0400, Baptiste Gaillard wrote:
>> >>> >> ----- Original Message ----- 
>> >>> >> From: "Baptiste Gaillard" <b_gaillard at hotmail.com>
>> >>> >> To: "Behdad Esfahbod" <behdad at behdad.org>
>> >>> >> Sent: Thursday, July 20, 2006 9:52 AM
>> >>> >> Subject: Re: [cairo] Problem with fonts
>> >>> >>
>> >>> >>
>> >>> >> > Ok, I've seen an exemple here that use a 0.35 font size
>> >>> >> > (http://cairographics.org/samples/text.html), so I think it is 
>> >>> >> > an
>> >>> >> > error.
>> >>> >> > With size like 12-14-16 it works.
>> >>> >
>> >>> > Ah, not good.  Carl?
>> >>> >
>> >>> >> > But I've also anti-aliasing problem with the other options, I've
>> >>> >> > tested
>> >>> >> > with
>> >>> >> > CAIRO_ANTIALIAS_GRAY and CAIRO_ANTIALIAS_SUBPIXEL but 
>> >>> >> > anti-aliased
>> >>> >> > seems
>> >>> >> > again to be off. See the 2 files attached to this message, the
>> >>> >> > first is
>> >>> >> > a
>> >>> >> > symbol rendere with CAIRO_ANTIALIAS_GRAY, the second is rendered
>> >>> >> > with
>> >>> >> > CAIRO_ANTIALIAS_SUBPIXEL (is it normal that the contours are 
>> >>> >> > green
>> >>> >> > ?).
>> >>> >
>> >>> > The green is kinda expected.  If it doesn't look good on your LCD, 
>> >>> > you
>> >>> > may have a different RGB order, or a poor FreeType version.
>> >>> >
>> >>> > As for GRAY not working, is it the case that you are using a bitmap
>> >>> > font?  Can you please try with a widely known font like Bitstream 
>> >>> > Vera
>> >>> > and report the results of that?
>> >>> >
>> >>> > behdad
>> >>> >
>> >>> >> >
>> >>> >> > Thanks.
>> >>> >> >
>> >>> >> > Baptiste.
>> >>> >> >
>> >>> >> _______________________________________________
>> >>> >> cairo mailing list
>> >>> >> cairo at cairographics.org
>> >>> >> http://cairographics.org/cgi-bin/mailman/listinfo/cairo
>> >>> > -- 
>> >>> > behdad
>> >>> > http://behdad.org/
>> >>> >
>> >>> > "Commandment Three says Do Not Kill, Amendment Two says Blood Will
>> >>> > Spill"
>> >>> >        -- Dan Bern, "New American Language"
>> >>> >
>> >>> >
>> >> -- 
>> >> behdad
>> >> http://behdad.org/
>> >>
>> >> "Commandment Three says Do Not Kill, Amendment Two says Blood Will 
>> >> Spill"
>> >>        -- Dan Bern, "New American Language"
>> >>
>> >>
>> >
>> _______________________________________________
>> cairo mailing list
>> cairo at cairographics.org
>> http://cairographics.org/cgi-bin/mailman/listinfo/cairo
> -- 
> behdad
> http://behdad.org/
>
> "Commandment Three says Do Not Kill, Amendment Two says Blood Will Spill"
>        -- Dan Bern, "New American Language"
>
>