LilvNodes*
lilv_nodes_from_stream_objects(LilvWorld* world,
SordIter* stream,
SordQuadIndex field)
{
if (sord_iter_end(stream)) {
sord_iter_free(stream);
return NULL;
} else if (world->opt.filter_language) {
return lilv_nodes_from_stream_objects_i18n(world, stream, field);
} else {
LilvNodes* values = lilv_nodes_new();
FOREACH_MATCH(stream) {
const SordNode* value = sord_iter_get_node(stream, field);
LilvNode* node = lilv_node_new_from_node(world, value);
if (node) {
zix_tree_insert((ZixTree*)values, node, NULL);
}
}
sord_iter_free(stream);
return values;
}
}
static LilvNodes*
lilv_nodes_from_stream_objects_i18n(LilvWorld* world,
SordIter* stream,
SordQuadIndex field)
{
LilvNodes* values = lilv_nodes_new();
const SordNode* nolang = NULL; // Untranslated value
const SordNode* partial = NULL; // Partial language match
char* syslang = lilv_get_lang();
FOREACH_MATCH(stream) {
const SordNode* value = sord_iter_get_node(stream, field);
if (sord_node_get_type(value) == SORD_LITERAL) {
const char* lang = sord_node_get_language(value);
LilvLangMatch lm = LILV_LANG_MATCH_NONE;
if (lang) {
lm = (syslang)
? lilv_lang_matches(lang, syslang)
: LILV_LANG_MATCH_PARTIAL;
} else {
nolang = value;
if (!syslang) {
lm = LILV_LANG_MATCH_EXACT;
}
}
if (lm == LILV_LANG_MATCH_EXACT) {
// Exact language match, add to results
zix_tree_insert((ZixTree*)values,
lilv_node_new_from_node(world, value),
NULL);
} else if (lm == LILV_LANG_MATCH_PARTIAL) {
// Partial language match, save in case we find no exact
partial = value;
}
} else {
zix_tree_insert((ZixTree*)values,
lilv_node_new_from_node(world, value),
NULL);
}
}
sord_iter_free(stream);
free(syslang);
if (lilv_nodes_size(values) > 0) {
return values;
}
const SordNode* best = nolang;
if (syslang && partial) {
// Partial language match for system language
best = partial;
} else if (!best) {
// No languages matches at all, and no untranslated value
// Use any value, if possible
best = partial;
}
if (best) {
zix_tree_insert(
(ZixTree*)values, lilv_node_new_from_node(world, best), NULL);
} else {
// No matches whatsoever
lilv_nodes_free(values);
values = NULL;
}
return values;
}
static LilvState*
new_state_from_model(LilvWorld* world,
LV2_URID_Map* map,
SordModel* model,
const SordNode* node,
const char* dir)
{
LilvState* const state = (LilvState*)malloc(sizeof(LilvState));
memset(state, '\0', sizeof(LilvState));
state->dir = lilv_strdup(dir);
state->atom_Path = map->map(map->handle, LV2_ATOM__Path);
// Get the plugin URI this state applies to
SordIter* i = sord_search(model, node, world->uris.lv2_appliesTo, 0, 0);
if (i) {
const SordNode* object = sord_iter_get_node(i, SORD_OBJECT);
const SordNode* graph = sord_iter_get_node(i, SORD_GRAPH);
state->plugin_uri = lilv_node_new_from_node(world, object);
if (!state->dir && graph) {
state->dir = lilv_strdup((const char*)sord_node_get_string(graph));
}
sord_iter_free(i);
} else if (sord_ask(model,
node,
world->uris.rdf_a,
world->uris.lv2_Plugin, 0)) {
// Loading plugin description as state (default state)
state->plugin_uri = lilv_node_new_from_node(world, node);
} else {
LILV_ERRORF("State %s missing lv2:appliesTo property\n",
sord_node_get_string(node));
}
// Get the state label
i = sord_search(model, node, world->uris.rdfs_label, NULL, NULL);
if (i) {
const SordNode* object = sord_iter_get_node(i, SORD_OBJECT);
const SordNode* graph = sord_iter_get_node(i, SORD_GRAPH);
state->label = lilv_strdup((const char*)sord_node_get_string(object));
if (!state->dir) {
state->dir = lilv_strdup((const char*)sord_node_get_string(graph));
}
sord_iter_free(i);
}
Sratom* sratom = sratom_new(map);
SerdChunk chunk = { NULL, 0 };
LV2_Atom_Forge forge;
lv2_atom_forge_init(&forge, map);
lv2_atom_forge_set_sink(
&forge, sratom_forge_sink, sratom_forge_deref, &chunk);
// Get port values
SordIter* ports = sord_search(model, node, world->uris.lv2_port, 0, 0);
FOREACH_MATCH(ports) {
const SordNode* port = sord_iter_get_node(ports, SORD_OBJECT);
SordNode* label = sord_get(model, port, world->uris.rdfs_label, 0, 0);
SordNode* symbol = sord_get(model, port, world->uris.lv2_symbol, 0, 0);
SordNode* value = sord_get(model, port, world->uris.pset_value, 0, 0);
if (!value) {
value = sord_get(model, port, world->uris.lv2_default, 0, 0);
}
if (!symbol) {
LILV_ERRORF("State `%s' port missing symbol.\n",
sord_node_get_string(node));
} else if (value) {
chunk.len = 0;
sratom_read(sratom, &forge, world->world, model, value);
LV2_Atom* atom = (LV2_Atom*)chunk.buf;
append_port_value(state,
(const char*)sord_node_get_string(symbol),
LV2_ATOM_BODY(atom), atom->size, atom->type);
if (label) {
lilv_state_set_label(state,
(const char*)sord_node_get_string(label));
}
}
sord_node_free(world->world, value);
sord_node_free(world->world, symbol);
sord_node_free(world->world, label);
}
sord_iter_free(ports);
// Get properties
SordNode* statep = sord_new_uri(world->world, USTR(LV2_STATE__state));
SordNode* state_node = sord_get(model, node, statep, NULL, NULL);
if (state_node) {
SordIter* props = sord_search(model, state_node, 0, 0, 0);
FOREACH_MATCH(props) {
const SordNode* p = sord_iter_get_node(props, SORD_PREDICATE);
const SordNode* o = sord_iter_get_node(props, SORD_OBJECT);
chunk.len = 0;
lv2_atom_forge_set_sink(
&forge, sratom_forge_sink, sratom_forge_deref, &chunk);
sratom_read(sratom, &forge, world->world, model, o);
LV2_Atom* atom = (LV2_Atom*)chunk.buf;
uint32_t flags = LV2_STATE_IS_POD|LV2_STATE_IS_PORTABLE;
Property prop = { NULL, 0, 0, 0, flags };
prop.key = map->map(map->handle, (const char*)sord_node_get_string(p));
prop.type = atom->type;
prop.size = atom->size;
prop.value = malloc(atom->size);
memcpy(prop.value, LV2_ATOM_BODY(atom), atom->size);
if (atom->type == forge.Path) {
prop.flags = LV2_STATE_IS_PORTABLE;
}
if (prop.value) {
state->props = (Property*)realloc(
state->props, (++state->num_props) * sizeof(Property));
state->props[state->num_props - 1] = prop;
}
}
sord_iter_free(props);
}
sord_node_free(world->world, state_node);
sord_node_free(world->world, statep);
free((void*)chunk.buf);
sratom_free(sratom);
qsort(state->props, state->num_props, sizeof(Property), property_cmp);
qsort(state->values, state->num_values, sizeof(PortValue), value_cmp);
return state;
}
