GF_SceneGraph *gf_inline_get_proto_lib(void *_is, MFURL *lib_url)
{
GF_ProtoLink *pl;
u32 i;
GF_Scene *scene = (GF_Scene *) _is;
if (!scene || !lib_url->count) return NULL;
if (gf_inline_is_hardcoded_proto(lib_url, scene->root_od->term->user->config)) return GF_SG_INTERNAL_PROTO;
i=0;
while ((pl = (GF_ProtoLink*)gf_list_enum(scene->extern_protos, &i))) {
if (!pl->mo) continue;
if (gf_mo_get_od_id(pl->url) != GF_MEDIA_EXTERNAL_ID) {
if (gf_mo_get_od_id(pl->url) == gf_mo_get_od_id(lib_url)) {
if (!pl->mo->odm || !pl->mo->odm->subscene) return NULL;
return pl->mo->odm->subscene->graph;
}
}
}
/*for string URL based protos, recursively check until top if the proto lib is not already present*/
if (lib_url->vals[0].url) {
GF_Scene *check_scene = scene;
while (check_scene) {
i=0;
while ((pl = (GF_ProtoLink*)gf_list_enum(check_scene->extern_protos, &i))) {
char *url1, *url2;
Bool ok;
if (!pl->mo) continue;
if (gf_mo_get_od_id(pl->url) != GF_MEDIA_EXTERNAL_ID) continue;
/*not the same url*/
if (!gf_mo_is_same_url(pl->mo, lib_url, NULL, 0)) continue;
/*check the url path is the same*/
url1 = gf_url_concatenate(pl->mo->odm->net_service->url, lib_url->vals[0].url);
url2 = gf_url_concatenate(scene->root_od->net_service->url, lib_url->vals[0].url);
ok = 0;
if (url1 && url2 && !strcmp(url1, url2)) ok=1;
if (url1) gf_free(url1);
if (url2) gf_free(url2);
if (!ok) continue;
if (!pl->mo->odm || !pl->mo->odm->subscene) return NULL;
return pl->mo->odm->subscene->graph;
}
check_scene = check_scene->root_od->parentscene;
}
}
/*not found, let's try to load it*/
if (!lib_url || !lib_url->count) return NULL;
/*internal, don't waste ressources*/
if (gf_inline_is_hardcoded_proto(lib_url, scene->root_od->term->user->config)) return NULL;
i=0;
while ((pl = (GF_ProtoLink*)gf_list_enum(scene->extern_protos, &i)) ) {
if (pl->url == lib_url) return NULL;
if (pl->url->vals[0].OD_ID && (pl->url->vals[0].OD_ID == lib_url->vals[0].OD_ID)) return NULL;
if (pl->url->vals[0].url && lib_url->vals[0].url && !stricmp(pl->url->vals[0].url, lib_url->vals[0].url) ) return NULL;
}
pl = (GF_ProtoLink*)gf_malloc(sizeof(GF_ProtoLink));
pl->url = lib_url;
gf_list_add(scene->extern_protos, pl);
pl->mo = gf_scene_get_media_object(scene, lib_url, GF_MEDIA_OBJECT_SCENE, 0);
/*this may already be destroyed*/
if (pl->mo) gf_mo_play(pl->mo, 0, -1, 0);
/*and return NULL*/
return NULL;
}
void gf_inline_on_modified(GF_Node *node)
{
u32 ODID;
GF_MediaObject *mo;
M_Inline *pInline = (M_Inline *) node;
GF_Scene *scene = (GF_Scene *)gf_node_get_private(node);
ODID = gf_mo_get_od_id(&pInline->url);
if (scene) {
mo = (scene->root_od) ? scene->root_od->mo : NULL;
/*disconnect current inline if we're the last one using it (same as regular OD session leave/join)*/
if (mo) {
Bool changed = 1;
if (ODID != GF_MEDIA_EXTERNAL_ID) {
if (ODID && (ODID==scene->root_od->OD->objectDescriptorID)) changed = 0;
} else {
if (gf_mo_is_same_url(mo, &pInline->url, NULL, 0) ) changed = 0;
}
if (mo->num_open) {
if (!changed) return;
gf_scene_notify_event(scene, GF_EVENT_UNLOAD, node, NULL, GF_OK);
gf_node_dirty_parents(node);
gf_list_del_item(mo->nodes, node);
/*reset the scene pointer as it may get destroyed*/
switch (gf_node_get_tag(node)) {
case TAG_MPEG4_Inline:
#ifndef GPAC_DISABLE_X3D
case TAG_X3D_Inline:
#endif
gf_node_set_private(node, NULL);
break;
}
mo->num_open --;
if (!mo->num_open) {
if (ODID == GF_MEDIA_EXTERNAL_ID) {
GF_Scene *parent = scene->root_od->parentscene;
/*!!! THIS WILL DESTROY THE INLINE SCENE OBJECT !!!*/
gf_odm_disconnect(scene->root_od, 1);
/*and force removal of the media object*/
if (parent) {
if (gf_list_del_item(parent->scene_objects, mo)>=0) {
gf_sg_vrml_mf_reset(&mo->URLs, GF_SG_VRML_MFURL);
gf_list_del(mo->nodes);
gf_free(mo);
}
}
} else {
gf_term_lock_media_queue(scene->root_od->term, 1);
/*external media are completely unloaded*/
if (scene->root_od->OD->objectDescriptorID==GF_MEDIA_EXTERNAL_ID) {
scene->root_od->action_type = GF_ODM_ACTION_DELETE;
} else {
scene->root_od->action_type = GF_ODM_ACTION_STOP;
}
if (gf_list_find(scene->root_od->term->media_queue, scene->root_od)<0)
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
gf_term_lock_media_queue(scene->root_od->term, 0);
}
}
}
}
} else {
gf_node_dirty_parents(node);
}
if (ODID) gf_inline_set_scene(pInline);
}
void gf_inline_on_modified(GF_Node *node)
{
u32 ODID;
GF_MediaObject *mo;
M_Inline *pInline = (M_Inline *) node;
GF_Scene *scene = (GF_Scene *)gf_node_get_private(node);
ODID = gf_mo_get_od_id(&pInline->url);
if (scene) {
mo = (scene->root_od) ? scene->root_od->mo : NULL;
/*disconnect current inline if we're the last one using it (same as regular OD session leave/join)*/
if (mo) {
Bool changed = GF_TRUE;
if (ODID != GF_MEDIA_EXTERNAL_ID) {
if (ODID && (ODID==scene->root_od->OD->objectDescriptorID)) changed = GF_FALSE;
} else {
if (gf_mo_is_same_url(mo, &pInline->url, NULL, 0) ) changed = GF_FALSE;
}
if (mo->num_open) {
if (!changed) return;
gf_scene_notify_event(scene, GF_EVENT_UNLOAD, node, NULL, GF_OK, GF_TRUE);
gf_node_dirty_parents(node);
gf_mo_event_target_remove_by_node(mo, node);
/*reset the scene pointer as it may get destroyed*/
switch (gf_node_get_tag(node)) {
case TAG_MPEG4_Inline:
#ifndef GPAC_DISABLE_X3D
case TAG_X3D_Inline:
#endif
gf_node_set_private(node, NULL);
break;
}
mo->num_open --;
if (!mo->num_open) {
if (ODID == GF_MEDIA_EXTERNAL_ID) {
GF_Scene *parent = scene->root_od->parentscene;
/*!!! THIS WILL DESTROY THE INLINE SCENE OBJECT !!!*/
gf_odm_disconnect(scene->root_od, GF_TRUE);
/*and force removal of the media object*/
if (parent) {
if (gf_list_del_item(parent->scene_objects, mo)>=0) {
gf_sg_vrml_mf_reset(&mo->URLs, GF_SG_VRML_MFURL);
gf_mo_del(mo);
}
}
} else {
gf_term_lock_media_queue(scene->root_od->term, GF_TRUE);
/*external media are completely unloaded, except addons which are only declared once */
if (!scene->root_od->addon && (scene->root_od->OD->objectDescriptorID==GF_MEDIA_EXTERNAL_ID)) {
scene->root_od->action_type = GF_ODM_ACTION_DELETE;
} else {
scene->root_od->action_type = GF_ODM_ACTION_STOP;
}
if (gf_list_find(scene->root_od->term->media_queue, scene->root_od)<0)
gf_list_add(scene->root_od->term->media_queue, scene->root_od);
gf_term_lock_media_queue(scene->root_od->term, GF_FALSE);
}
}
}
}
}
/*force a redraw and load scene at next pass - we cannot load the scene now because
- we can be in a JS call (eg JS mutex blocked)
- locating scene objects matching the new url needs exclusive access to the MediaObject list, achieved with the term net mutex
- another service may already be setting up objects (eg exclusive access to the net mutex grabbed), which can trigger event forwarding
- some event forwarders may request JS context (eg access to JS mutex)
In such a case we would end up in a deadlock - this needs urgent fixing ...
*/
if (ODID) {
/*if no parent we must process the url change as we may not be traversed later on (not in the scene tree)*/
if (gf_node_get_parent(node, 0)==NULL) {
gf_inline_set_scene(pInline);
} else {
gf_node_dirty_parents(node);
}
}
}
