wayland_shm: Remove dmabuf fallback

Now that we're dependent on create_immed there's no possibility of falling
back to non dmabuf allocation.

The only failing case we really need to handle is failing the first
allocation, which is currently broken and I'll be adding an advance test
for it shortly.

diff --git a/src/modules/evas/engines/wayland_shm/evas_dmabuf.c b/src/modules/evas/engines/wayland_shm/evas_dmabuf.c
index de1c3fc..ffa65e9 100644 (file)
--- a/src/modules/evas/engines/wayland_shm/evas_dmabuf.c
+++ b/src/modules/evas/engines/wayland_shm/evas_dmabuf.c
@@ -462,6 +462,7 @@ _buffer_manager_deref(void)
    close(drm_fd);
 }
 
+/* Currently no callers, but that will change...
 static void
 _buffer_manager_destroy(void)
 {
@@ -469,7 +470,7 @@ _buffer_manager_destroy(void)
    buffer_manager->destroyed = EINA_TRUE;
    _buffer_manager_deref();
 }
-
+*/
 
 static Buffer_Handle *
 _buffer_manager_alloc(const char *name, int w, int h, unsigned long *stride, int32_t *fd)
@@ -513,57 +514,6 @@ _buffer_manager_discard(Dmabuf_Buffer *buf)
 }
 
 static void
-_fallback(Dmabuf_Surface *s, int w, int h)
-{
-   Dmabuf_Buffer *b;
-   Surface *surf;
-   Eina_Bool recovered;
-   unsigned char *new_data, *old_data;
-   int y;
-
-   dmabuf_totally_hosed = EINA_TRUE;
-   surf = s->surface;
-   if (!surf) goto out;
-
-   recovered = _evas_surface_init(surf, w, h, s->nbuf);
-   if (!recovered)
-     {
-        ERR("Fallback from dmabuf to shm attempted and failed.");
-        abort();
-     }
-
-   /* Since a buffer may have been filled before we realized we can't
-    * display it, we need to make sure any async render on it is finished,
-    * then copy the contents into one of the newly allocated shm buffers
-    */
-
-   b = s->pre;
-   if (!b) b = s->current;
-   if (!b) goto out;
-
-   if (!b->mapping) b->mapping = _buffer_manager_map(b);
-
-   b->busy = EINA_FALSE;
-
-   if (!b->mapping) goto out;
-
-   evas_thread_queue_wait();
-
-   old_data = b->mapping;
-   surf->funcs.assign(surf);
-   new_data = surf->funcs.data_get(surf, NULL, NULL);
-   for (y = 0; y < h; y++)
-     memcpy(new_data + y * w * 4, old_data + y * b->stride, w * 4);
-   surf->funcs.post(surf, NULL, 0);
-   _buffer_manager_unmap(b);
-   b->mapping = NULL;
-
-out:
-   _internal_evas_dmabuf_surface_destroy(s);
-   _buffer_manager_destroy();
-}
-
-static void
 _evas_dmabuf_buffer_unlock(Dmabuf_Buffer *b)
 {
    _buffer_manager_unmap(b);
@@ -616,12 +566,7 @@ _evas_dmabuf_surface_reconfigure(Surface *s, int w, int h, uint32_t flags EINA_U
              _evas_dmabuf_buffer_destroy(b);
           }
         buf = _evas_dmabuf_buffer_init(surface, w, h);
-        if (!buf)
-           {
-              if (surface) _fallback(surface, w, h);
-              s->surf.dmabuf = NULL;
-              return;
-           }
+        if (!buf)  return;
         surface->buffer[i] = buf;
      }
 }
@@ -777,7 +722,6 @@ _evas_dmabuf_buffer_init(Dmabuf_Surface *s, int w, int h)
    if (!out->bh)
      {
         free(out);
-        _fallback(s, w, h);
         return NULL;
      }
    out->w = w;