[cairo] Overlay problem for two texts

Eric Feillant eric.feillant at live-media.fr
Wed Jan 5 16:10:28 UTC 2022


Hi Mohit,

Thank you for your response.

Yes, the code run in a loop for all players. I've tried without :
cairo_set_source_rgb(cr, 0.7, 0.3, 0.2);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_paint(cr);

But without success, only player 2 is present in the image ... really i 
don't understand
because the two player are displayed on screen with the printf function ....

Mistake .....

Eric


Yes, Le 05/01/2022 à 16:45, Mohit Sindhwani a écrit :
> Hi Eric,
>
>
> On 2022-1-5 9:51 pm, Eric Feillant wrote:
>> Cairo code start like this :
>>
>> // START CAIRO HEAD
>>
>> cairo_surface_t *surface;
>>         cairo_t *cr;
>>
>>         surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 
>> 600, 400);
>>         cr = cairo_create(surface);
>>         cairo_set_source_rgb(cr, 0.7, 0.3, 0.2);
>>         cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
>>         cairo_paint(cr);
>>
>>         cairo_select_font_face(cr, "Sans", 
>> CAIRO_FONT_SLANT_NORMAL,CAIRO_FONT_WEIGHT_NORMAL);
>>         cairo_set_font_size(cr, 20.0);
>>         cairo_set_source_rgb(cr, 1.0, 1.0, 0.1);
>>
>> // END CAIRO HEAD
>
> Does the code run in a loop for all players? Or does the Cairo head 
> run for each of the players? If it runs for all players, then, it's 
> possible that this code is overwriting the older drawing, maybe...
>
>         cairo_set_source_rgb(cr, 0.7, 0.3, 0.2);
>         cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
>         cairo_paint(cr);
>
> Best regards,
> Mohit.
>

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