forked from enlightenment/enlightenment
fix x11 compositor to use damage events
it seems that since the first version of the enlightenment compositor in e17, damage events in x11 have never been used correctly. using the event struct members will only give the bounding box/area instead of the damaged regions; the real regions must be explicitly fetched from the server this removes the need for a lot of hacks which were added over the years to make override windows render correctly, and also probably reduces rendering overhead slightly
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@ -1484,11 +1484,6 @@ _e_comp_x_configure(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_X_Event_
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{
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e_pixmap_dirty(ec->pixmap);
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evas_object_resize(ec->frame, ev->w, ev->h);
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if (ec->override && (!ec->input_only))
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{
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e_comp_object_damage(ec->frame, 0, 0, ev->w, ev->h);
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e_comp_object_render_update_del(ec->frame);
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}
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}
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return ECORE_CALLBACK_RENEW;
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}
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@ -2785,27 +2780,33 @@ static Eina_Bool
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_e_comp_x_damage(void *data EINA_UNUSED, int type EINA_UNUSED, Ecore_X_Event_Damage *ev)
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{
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E_Client *ec;
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Ecore_X_Rectangle *rects;
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int n = 0;
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ec = _e_comp_x_client_find_by_damage(ev->damage);
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if ((!ec) || e_object_is_del(E_OBJECT(ec))) return ECORE_CALLBACK_PASS_ON;
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if (_e_comp_x_client_data_get(ec)->damage)
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{
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Ecore_X_Region parts;
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Ecore_X_Rectangle bounds;
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parts = ecore_x_region_new(NULL, 0);
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ecore_x_damage_subtract(_e_comp_x_client_data_get(ec)->damage, 0, parts);
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rects = ecore_x_region_fetch(parts, &n, &bounds);
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ecore_x_region_free(parts);
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}
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//WRN("DAMAGE %p: %dx%d", ec, ev->area.width, ev->area.height);
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if (!n) return ECORE_CALLBACK_RENEW;
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if (e_comp->nocomp)
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e_pixmap_dirty(ec->pixmap);
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/* discard unwanted xy position of first damage
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* to avoid wrong composition for override redirect window */
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else if ((ec->override) && (!_e_comp_x_client_data_get(ec)->first_damage))
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e_comp_object_damage(ec->frame, 0, 0, ev->area.width, ev->area.height);
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else
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e_comp_object_damage(ec->frame, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
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{
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int i;
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for (i = 0; i < n; i++)
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e_comp_object_damage(ec->frame, rects[i].x, rects[i].y, rects[i].width, rects[i].height);
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}
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if ((!ec->re_manage) && (!ec->override) && (!_e_comp_x_client_data_get(ec)->first_damage))
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e_comp_object_render_update_del(ec->frame);
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else
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