forked from enlightenment/efl
evas image: fix screen flickering issue at partial + image preloading
Summary: Prerequisite: Partial rendering ON + Image Prealoding + Triple surface buffer of GL. Previously, evas trys to draw of an image which didn't prepare of image data yet (in case of preloading) This time, it will draw a solid color onto the dest sufrace 1, But luckily, preloading is finished just after, it draws proper image data onto next surface 2 and 3. Now, triple buffer is filled with the image data but only first frame is still empty. That's a problem. This patch skips to draw image if it doesn't prepare data yet, but once the preloading is finished, it starts to draw images. @fix Reviewers: #committers Subscribers: kimcinoo, cedric, #committers, zmike Tags: #efl Differential Revision: https://phab.enlightenment.org/D6739
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@ -125,7 +125,8 @@ struct _Evas_Image_Data
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Eina_Bool filled : 1;
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Eina_Bool filled_set : 1;
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Eina_Bool proxyrendering : 1;
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Eina_Bool preloading : 1;
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Eina_Bool preloading : 1; //on preloading
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Eina_Bool preloaded: 1; //just finsihed preloading
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Eina_Bool video_surface : 1;
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Eina_Bool video_visible : 1;
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Eina_Bool created : 1;
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@ -1236,7 +1236,10 @@ _evas_image_load_post_update(Evas_Object *eo_obj, Evas_Object_Protected_Data *ob
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state_write->image.stride = stride;
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}
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EINA_COW_IMAGE_STATE_WRITE_END(o, state_write);
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o->changed = EINA_TRUE;
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o->preloaded = EINA_TRUE;
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if (resize_call) evas_object_inform_call_image_resize(eo_obj);
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evas_object_change(eo_obj, obj);
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}
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else
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{
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@ -2251,6 +2254,9 @@ evas_object_image_render_pre(Evas_Object *eo_obj,
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int is_v = 0, was_v = 0;
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Eina_Bool changed_prep = EINA_TRUE;
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/* image is not ready yet, skip rendering. Leave it to next frame */
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if (o->preloading) return;
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/* dont pre-render the obj twice! */
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if (obj->pre_render_done) return;
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obj->pre_render_done = EINA_TRUE;
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@ -2379,6 +2385,13 @@ evas_object_image_render_pre(Evas_Object *eo_obj,
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evas_object_render_pre_prev_cur_add(&e->clip_changes, eo_obj, obj);
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goto done;
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}
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//pre-loading is finished
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if (o->preloaded)
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{
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evas_object_render_pre_prev_cur_add(&e->clip_changes, eo_obj, obj);
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o->preloaded = EINA_FALSE;
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goto done;
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}
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}
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if (((obj->cur->geometry.x != obj->prev->geometry.x) ||
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(obj->cur->geometry.y != obj->prev->geometry.y) ||
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