diff options
Diffstat (limited to 'src/port.c')
| -rw-r--r-- | src/port.c | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -26,6 +26,7 @@ #include <slv2/types.h> #include <slv2/util.h> #include <slv2/values.h> +#include <slv2/scalepoints.h> #include "slv2_internal.h" @@ -230,6 +231,50 @@ slv2_port_get_range(SLV2Plugin p, } +SLV2ScalePoints +slv2_port_get_scale_points(SLV2Plugin p, + SLV2Port port) +{ + char* query = slv2_strjoin( + "SELECT DISTINCT ?value ?label WHERE {\n" + "<", slv2_value_as_uri(p->plugin_uri), "> lv2:port ?port .\n" + "?port lv2:symbol \"", slv2_value_as_string(port->symbol), "\" ;\n", + " lv2:scalePoint ?point .\n" + "?point rdf:value ?value ;\n" + " rdfs:label ?label .\n" + "\n} ORDER BY ?value", NULL); + + librdf_query_results* results = slv2_plugin_query(p, query); + + SLV2ScalePoints ret = NULL; + + if (!librdf_query_results_finished(results)) + ret = slv2_scale_points_new(); + + while (!librdf_query_results_finished(results)) { + + librdf_node* value_node = librdf_query_results_get_binding_value(results, 0); + librdf_node* label_node = librdf_query_results_get_binding_value(results, 1); + + SLV2Value value = slv2_value_new_librdf_node(p->world, value_node); + SLV2Value label = slv2_value_new_librdf_node(p->world, label_node); + + raptor_sequence_push(ret, slv2_scale_point_new(value, label)); + + librdf_query_results_next(results); + } + + librdf_free_query_results(results); + + free(query); + + assert(!ret || slv2_values_size(ret) > 0); + + return ret; +} + + + SLV2Values slv2_port_get_properties(SLV2Plugin p, SLV2Port port) |