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add pre-render callback list for compositor canvas 

someone doing fancy effects might want to add a callback to do various
tasks only when a render is about to occur
This commit is contained in:
Mike Blumenkrantz 2015-09-17 16:32:49 -04:00
parent a99bc68baa
commit bff9ae5feb
2 changed files with 13 additions and 0 deletions
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2
src/bin/e_comp.h
View File

@ -89,6 +89,8 @@ struct _E_Comp
Eina_List *clients;
unsigned int new_clients;
Eina_List *pre_render_cbs; /* E_Comp_Cb */
E_Comp_X_Data *x_comp_data;
E_Comp_Wl_Data *wl_comp_data;

11
src/bin/e_comp_canvas.c
View File

@ -211,6 +211,16 @@ _e_comp_canvas_resize(Ecore_Evas *ee EINA_UNUSED)
e_comp_canvas_update();
}
static void
_e_comp_canvas_prerender(Ecore_Evas *ee EINA_UNUSED)
{
E_Comp_Cb cb;
Eina_List *l;
EINA_LIST_FOREACH(e_comp->pre_render_cbs, l, cb)
cb();
}
E_API Eina_Bool
e_comp_canvas_init(int w, int h)
{
@ -266,6 +276,7 @@ e_comp_canvas_init(int w, int h)
E_LIST_HANDLER_APPEND(handlers, E_EVENT_SCREENSAVER_ON, _e_comp_cb_screensaver_on, NULL);
E_LIST_HANDLER_APPEND(handlers, E_EVENT_SCREENSAVER_OFF, _e_comp_cb_screensaver_off, NULL);
ecore_evas_callback_pre_render_set(e_comp->ee, _e_comp_canvas_prerender);
ecore_evas_callback_resize_set(e_comp->ee, _e_comp_canvas_resize);
ecore_evas_resize(e_comp->ee, w, h);