[Dev] [E-devel] efl in tizen 0914.3 renders a black screen with wayland_egl

Christopher Michael cpmichael at osg.samsung.com
Mon Oct 5 17:52:35 GMT 2015


What version of Mesa is being used for this ?? I ask because there is a 
an issue where Mesa could be rendering just black squares

dh

On 10/05/2015 10:25 AM, cee1 wrote:
> Hi all,
>
> When enable wayland_egl backend, I got a black screen with tizen
> 0914.3(aka milestone), while the 0630.1 works fine.
>
> After some debugging, I located a commit
> "https://git.enlightenment.org/core/efl.git/commit/?id=2725a248c993856d70323c3a0bb0d859d7501789"
> causing the regression.
>
> """
> https://git.enlightenment.org/core/efl.git/tree/src/modules/evas/engines/software_generic/evas_engine.c?id=2725a248c993856d70323c3a0bb0d859d7501789#n3344
>
>          switch (re->swap_mode)
>            {
>             case MODE_COPY:
>             case MODE_DOUBLE:
>             case MODE_TRIPLE:
>             case MODE_QUADRUPLE:
>               rect = (Tilebuf_Rect *)re->cur_rect;
>               *x = rect->x;
>               *y = rect->y;
>               *w = rect->w;
>               *h = rect->h;
>               *cx = rect->x;
>               *cy = rect->y;
>               *cw = rect->w;
>               *ch = rect->h;
>               re->cur_rect = re->cur_rect->next;
>               break;
>             ...
>            }
>          surface = re->outbuf_new_region_for_update(re->ob,
>                                                     *x, *y, *w, *h,
>                                                     cx, cy, cw, ch);
>          if ((!re->cur_rect) || (!surface))
>            {
>               evas_common_tilebuf_free_render_rects(re->rects);
>               re->rects = NULL;
>               re->end = 1;
>
> """
>
> Where:
> 1) re->cur_rect is NULL, which presumably is set by """re->cur_rect =
> re->cur_rect->next;"""
> 2) surface is **NOT** NULL
> 3) re->rects is then set to NULL(because re->curl_rect == NULL), which
> causes eng_outbuf_flush to skip the invocation of
> glsym_eglSwapBuffersWithDamage
> (https://git.enlightenment.org/core/efl.git/tree/src/modules/evas/engines/wayland_egl/evas_wl_main.c?id=2725a248c993856d70323c3a0bb0d859d7501789#n463)
>
>
>



More information about the Dev mailing list