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deal with losing our backbuffer (after a resurf) with partial updates. 

SVN revision: 77175
This commit is contained in:
Carsten Haitzler 2012-09-28 02:30:09 +00:00
parent 5bb2df9101
commit 56ffcbe9e5
1 changed files with 11 additions and 1 deletions
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12
legacy/evas/src/modules/engines/gl_x11/evas_engine.c
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@ -34,6 +34,7 @@ struct _Render_Engine
int mode;
int w, h;
int vsync;
int lost_back;
EVGL_Engine *evgl_engine;
};
@ -620,6 +621,7 @@ _re_wincheck(Render_Engine *re)
{
if (re->win->surf) return 1;
eng_window_resurf(re->win);
re->lost_back = 1;
if (!re->win->surf)
{
ERR("GL engine can't re-create window surface!");
@ -1059,9 +1061,16 @@ eng_output_redraws_next_update_get(void *data, int *x, int *y, int *w, int *h, i
if (!re->rects)
{
re->rects = evas_common_tilebuf_get_render_rects(re->tb);
evas_common_tilebuf_clear(re->tb);
if (re->rects)
{
if (re->lost_back)
{
/* if we lost our backbuffer since the last frame redraw all */
re->lost_back = 0;
evas_common_tilebuf_add_redraw(re->tb, 0, 0, re->win->w, re->win->h);
evas_common_tilebuf_free_render_rects(re->rects);
re->rects = evas_common_tilebuf_get_render_rects(re->tb);
}
/* ensure we get rid of previous rect lists we dont need if mode
* changed/is appropriate */
switch (re->mode)
@ -1092,6 +1101,7 @@ eng_output_redraws_next_update_get(void *data, int *x, int *y, int *w, int *h, i
re->cur_rect = EINA_INLIST_GET(re->rects);
first_rect = EINA_TRUE;
}
evas_common_tilebuf_clear(re->tb);
}
if (!re->cur_rect) return NULL;
rect = (Tilebuf_Rect *)re->cur_rect;