forked from enlightenment/efl
wayland-shm: Introduce buffer ages
Summary: We now track each shm buffer's time since last draw so evas can tell what it needs to re-render. Reviewers: zmike, devilhorns Reviewed By: devilhorns Subscribers: cedric Differential Revision: https://phab.enlightenment.org/D2893
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@ -63,11 +63,12 @@ struct _Shm_Data
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typedef struct _Shm_Leaf Shm_Leaf;
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struct _Shm_Leaf
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{
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int w, h, busy;
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int w, h, busy, age;
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Shm_Data *data;
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Shm_Pool *resize_pool;
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Eina_Bool valid : 1;
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Eina_Bool reconfigure : 1;
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Eina_Bool drawn : 1;
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};
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typedef struct _Shm_Surface Shm_Surface;
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@ -251,26 +251,20 @@ _evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode
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Render_Engine_Swap_Mode
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_evas_outbuf_swap_mode_get(Outbuf *ob)
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{
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int count = 0, ret = 0;
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int age;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!_evas_shm_surface_assign(ob->surface)) return MODE_FULL;
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/* This was broken, for now we just do full redraws */
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age = ob->surface->current->age;
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if (age > ob->surface->num_buff) return MODE_FULL;
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else if (age == 1) return MODE_COPY;
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else if (age == 2) return MODE_DOUBLE;
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else if (age == 3) return MODE_TRIPLE;
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else if (age == 4) return MODE_QUADRUPLE;
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return MODE_FULL;
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if (count == ob->surface->num_buff) ret = MODE_FULL;
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else if (count == 0) ret = MODE_COPY;
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else if (count == 1) ret = MODE_DOUBLE;
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else if (count == 2) ret = MODE_TRIPLE;
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else if (count == 3) ret = MODE_QUADRUPLE;
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else ret = MODE_FULL;
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/* DBG("SWAPMODE: %d (0=FULL, 1=COPY, 2=DOUBLE, 3=TRIPLE, 4=QUAD", ret); */
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/* DBG("\tBusy: %d", count); */
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return ret;
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}
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int
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@ -290,7 +290,8 @@ _shm_leaf_create(Shm_Surface *surface, Shm_Leaf *leaf, int w, int h)
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leaf->w = w;
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leaf->h = h;
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leaf->valid = EINA_TRUE;
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leaf->drawn = EINA_FALSE;
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leaf->age = 0;
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wl_buffer_add_listener(leaf->data->buffer, &_shm_buffer_listener, surface);
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return EINA_TRUE;
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@ -408,6 +409,7 @@ Eina_Bool
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_evas_shm_surface_assign(Shm_Surface *surface)
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{
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int i;
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surface->current = NULL;
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for (i = 0; i < surface->num_buff; i++)
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{
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@ -415,10 +417,39 @@ _evas_shm_surface_assign(Shm_Surface *surface)
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if (surface->leaf[i].valid)
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{
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surface->current = &surface->leaf[i];
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return EINA_TRUE;
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break;
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}
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}
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/* If we ran out of buffers we're in trouble, reset all ages */
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if (!surface->current)
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{
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for (i = 0; i < surface->num_buff; i++)
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{
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if (surface->leaf[i].valid)
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{
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surface->leaf[i].drawn = EINA_FALSE;
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surface->leaf[i].age = 0;
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}
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}
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return EINA_FALSE;
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}
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/* Increment ages of all valid buffers */
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for (i = 0; i < surface->num_buff; i++)
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{
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if (surface->leaf[i].valid && surface->leaf[i].drawn)
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{
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surface->leaf[i].age++;
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if (surface->leaf[i].age > surface->num_buff)
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{
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surface->leaf[i].age = 0;
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surface->leaf[i].drawn = EINA_FALSE;
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}
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}
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}
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return EINA_TRUE;
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}
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void *
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@ -475,6 +506,8 @@ _evas_shm_surface_post(Shm_Surface *surface, Eina_Rectangle *rects, unsigned int
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wl_surface_commit(surface->surface);
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leaf->busy = 1;
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leaf->busy = EINA_TRUE;
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leaf->drawn = EINA_TRUE;
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leaf->age = 0;
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surface->current = NULL;
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}
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