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Diffstat (limited to 'src/plugin.c')
| -rw-r--r-- | src/plugin.c | 1138 |
1 files changed, 1138 insertions, 0 deletions
diff --git a/src/plugin.c b/src/plugin.c new file mode 100644 index 0000000..0575b32 --- /dev/null +++ b/src/plugin.c @@ -0,0 +1,1138 @@ +/* + Copyright 2007-2016 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#define __STDC_LIMIT_MACROS + +#include <assert.h> +#include <math.h> +#include <stdarg.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "lilv_config.h" +#include "lilv_internal.h" + +#include "lv2/lv2plug.in/ns/extensions/ui/ui.h" + +#define NS_DOAP (const uint8_t*)"http://usefulinc.com/ns/doap#" +#define NS_FOAF (const uint8_t*)"http://xmlns.com/foaf/0.1/" + +static void +lilv_plugin_init(LilvPlugin* plugin, LilvNode* bundle_uri) +{ + plugin->bundle_uri = bundle_uri; + plugin->binary_uri = NULL; +#ifdef LILV_DYN_MANIFEST + plugin->dynmanifest = NULL; +#endif + plugin->plugin_class = NULL; + plugin->data_uris = lilv_nodes_new(); + plugin->ports = NULL; + plugin->num_ports = 0; + plugin->loaded = false; + plugin->parse_errors = false; + plugin->replaced = false; +} + +/** Ownership of `uri` and `bundle` is taken */ +LilvPlugin* +lilv_plugin_new(LilvWorld* world, LilvNode* uri, LilvNode* bundle_uri) +{ + LilvPlugin* plugin = (LilvPlugin*)malloc(sizeof(LilvPlugin)); + + plugin->world = world; + plugin->plugin_uri = uri; + + lilv_plugin_init(plugin, bundle_uri); + return plugin; +} + +void +lilv_plugin_clear(LilvPlugin* plugin, LilvNode* bundle_uri) +{ + lilv_node_free(plugin->bundle_uri); + lilv_node_free(plugin->binary_uri); + lilv_nodes_free(plugin->data_uris); + lilv_plugin_init(plugin, bundle_uri); +} + +static void +lilv_plugin_free_ports(LilvPlugin* plugin) +{ + if (plugin->ports) { + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + lilv_port_free(plugin, plugin->ports[i]); + } + free(plugin->ports); + plugin->num_ports = 0; + plugin->ports = NULL; + } +} + +void +lilv_plugin_free(LilvPlugin* plugin) +{ +#ifdef LILV_DYN_MANIFEST + if (plugin->dynmanifest && --plugin->dynmanifest->refs == 0) { + typedef int (*CloseFunc)(LV2_Dyn_Manifest_Handle); + CloseFunc close_func = (CloseFunc)lilv_dlfunc(plugin->dynmanifest->lib, + "lv2_dyn_manifest_close"); + if (close_func) { + close_func(plugin->dynmanifest->handle); + } + + dlclose(plugin->dynmanifest->lib); + lilv_node_free(plugin->dynmanifest->bundle); + free(plugin->dynmanifest); + } +#endif + + lilv_node_free(plugin->plugin_uri); + plugin->plugin_uri = NULL; + + lilv_node_free(plugin->bundle_uri); + plugin->bundle_uri = NULL; + + lilv_node_free(plugin->binary_uri); + plugin->binary_uri = NULL; + + lilv_plugin_free_ports(plugin); + + lilv_nodes_free(plugin->data_uris); + plugin->data_uris = NULL; + + free(plugin); +} + +static LilvNode* +lilv_plugin_get_one(const LilvPlugin* plugin, + const SordNode* subject, + const SordNode* predicate) +{ + LilvNode* ret = NULL; + SordIter* stream = lilv_world_query_internal( + plugin->world, subject, predicate, NULL); + if (!sord_iter_end(stream)) { + ret = lilv_node_new_from_node(plugin->world, + sord_iter_get_node(stream, SORD_OBJECT)); + } + sord_iter_free(stream); + return ret; +} + +LilvNode* +lilv_plugin_get_unique(const LilvPlugin* plugin, + const SordNode* subject, + const SordNode* predicate) +{ + LilvNode* ret = lilv_plugin_get_one(plugin, subject, predicate); + if (!ret) { + LILV_ERRORF("No value found for (%s %s ...) property\n", + sord_node_get_string(subject), + sord_node_get_string(predicate)); + } + return ret; +} + +static void +lilv_plugin_load(LilvPlugin* plugin) +{ + SordNode* bundle_uri_node = plugin->bundle_uri->node; + const SerdNode* bundle_uri_snode = sord_node_to_serd_node(bundle_uri_node); + + SerdEnv* env = serd_env_new(bundle_uri_snode); + SerdReader* reader = sord_new_reader(plugin->world->model, env, SERD_TURTLE, + bundle_uri_node); + + SordModel* prots = lilv_world_filter_model( + plugin->world, + plugin->world->model, + plugin->plugin_uri->node, + plugin->world->uris.lv2_prototype, + NULL, NULL); + SordModel* skel = sord_new(plugin->world->world, SORD_SPO, false); + SordIter* iter = sord_begin(prots); + for (; !sord_iter_end(iter); sord_iter_next(iter)) { + const SordNode* t = sord_iter_get_node(iter, SORD_OBJECT); + LilvNode* prototype = lilv_node_new_from_node(plugin->world, t); + + lilv_world_load_resource(plugin->world, prototype); + + SordIter* statements = sord_search( + plugin->world->model, prototype->node, NULL, NULL, NULL); + FOREACH_MATCH(statements) { + SordQuad quad; + sord_iter_get(statements, quad); + quad[0] = plugin->plugin_uri->node; + sord_add(skel, quad); + } + + sord_iter_free(statements); + lilv_node_free(prototype); + } + sord_iter_free(iter); + + for (iter = sord_begin(skel); !sord_iter_end(iter); sord_iter_next(iter)) { + SordQuad quad; + sord_iter_get(iter, quad); + sord_add(plugin->world->model, quad); + } + sord_iter_free(iter); + sord_free(skel); + sord_free(prots); + + // Parse all the plugin's data files into RDF model + SerdStatus st = SERD_SUCCESS; + LILV_FOREACH(nodes, i, plugin->data_uris) { + const LilvNode* data_uri = lilv_nodes_get(plugin->data_uris, i); + + serd_env_set_base_uri(env, sord_node_to_serd_node(data_uri->node)); + st = lilv_world_load_file(plugin->world, reader, data_uri); + if (st > SERD_FAILURE) { + break; + } + } + + if (st > SERD_FAILURE) { + plugin->loaded = true; + plugin->parse_errors = true; + serd_reader_free(reader); + serd_env_free(env); + return; + } + +#ifdef LILV_DYN_MANIFEST + // Load and parse dynamic manifest data, if this is a library + if (plugin->dynmanifest) { + typedef int (*GetDataFunc)(LV2_Dyn_Manifest_Handle handle, + FILE* fp, + const char* uri); + GetDataFunc get_data_func = (GetDataFunc)lilv_dlfunc( + plugin->dynmanifest->lib, "lv2_dyn_manifest_get_data"); + if (get_data_func) { + const SordNode* bundle = plugin->dynmanifest->bundle->node; + serd_env_set_base_uri(env, sord_node_to_serd_node(bundle)); + FILE* fd = tmpfile(); + get_data_func(plugin->dynmanifest->handle, fd, + lilv_node_as_string(plugin->plugin_uri)); + rewind(fd); + serd_reader_add_blank_prefix( + reader, lilv_world_blank_node_prefix(plugin->world)); + serd_reader_read_file_handle( + reader, fd, (const uint8_t*)"(dyn-manifest)"); + fclose(fd); + } + } +#endif + serd_reader_free(reader); + serd_env_free(env); + + plugin->loaded = true; +} + +static bool +is_symbol(const char* str) +{ + for (const char* s = str; *s; ++s) { + if (!((*s >= 'a' && *s <= 'z') || + (*s >= 'A' && *s <= 'Z') || + (s > str && *s >= '0' && *s <= '9') || + *s == '_')) { + return false; + } + } + return true; +} + +static void +lilv_plugin_load_ports_if_necessary(const LilvPlugin* const_plugin) +{ + LilvPlugin* plugin = (LilvPlugin*)const_plugin; + + lilv_plugin_load_if_necessary(plugin); + + if (!plugin->ports) { + plugin->ports = (LilvPort**)malloc(sizeof(LilvPort*)); + plugin->ports[0] = NULL; + + SordIter* ports = lilv_world_query_internal( + plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_port, + NULL); + + FOREACH_MATCH(ports) { + const SordNode* port = sord_iter_get_node(ports, SORD_OBJECT); + LilvNode* index = lilv_plugin_get_unique( + plugin, port, plugin->world->uris.lv2_index); + LilvNode* symbol = lilv_plugin_get_unique( + plugin, port, plugin->world->uris.lv2_symbol); + + if (!lilv_node_is_string(symbol) || + !is_symbol((const char*)sord_node_get_string(symbol->node))) { + LILV_ERRORF("Plugin <%s> port symbol `%s' is invalid\n", + lilv_node_as_uri(plugin->plugin_uri), + lilv_node_as_string(symbol)); + lilv_node_free(symbol); + lilv_node_free(index); + lilv_plugin_free_ports(plugin); + break; + } + + if (!lilv_node_is_int(index)) { + LILV_ERRORF("Plugin <%s> port index is not an integer\n", + lilv_node_as_uri(plugin->plugin_uri)); + lilv_node_free(symbol); + lilv_node_free(index); + lilv_plugin_free_ports(plugin); + break; + } + + uint32_t this_index = lilv_node_as_int(index); + LilvPort* this_port = NULL; + if (plugin->num_ports > this_index) { + this_port = plugin->ports[this_index]; + } else { + plugin->ports = (LilvPort**)realloc( + plugin->ports, (this_index + 1) * sizeof(LilvPort*)); + memset(plugin->ports + plugin->num_ports, '\0', + (this_index - plugin->num_ports) * sizeof(LilvPort*)); + plugin->num_ports = this_index + 1; + } + + // Havn't seen this port yet, add it to array + if (!this_port) { + this_port = lilv_port_new(plugin->world, + port, + this_index, + lilv_node_as_string(symbol)); + plugin->ports[this_index] = this_port; + } + + SordIter* types = lilv_world_query_internal( + plugin->world, port, plugin->world->uris.rdf_a, NULL); + FOREACH_MATCH(types) { + const SordNode* type = sord_iter_get_node(types, SORD_OBJECT); + if (sord_node_get_type(type) == SORD_URI) { + zix_tree_insert( + (ZixTree*)this_port->classes, + lilv_node_new_from_node(plugin->world, type), NULL); + } else { + LILV_WARNF("Plugin <%s> port type is not a URI\n", + lilv_node_as_uri(plugin->plugin_uri)); + } + } + sord_iter_free(types); + + lilv_node_free(symbol); + lilv_node_free(index); + } + sord_iter_free(ports); + + // Check sanity + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + if (!plugin->ports[i]) { + LILV_ERRORF("Plugin <%s> is missing port %d/%d\n", + lilv_node_as_uri(plugin->plugin_uri), i, plugin->num_ports); + lilv_plugin_free_ports(plugin); + break; + } + } + } +} + +void +lilv_plugin_load_if_necessary(const LilvPlugin* plugin) +{ + if (!plugin->loaded) { + lilv_plugin_load((LilvPlugin*)plugin); + } +} + +LILV_API const LilvNode* +lilv_plugin_get_uri(const LilvPlugin* plugin) +{ + return plugin->plugin_uri; +} + +LILV_API const LilvNode* +lilv_plugin_get_bundle_uri(const LilvPlugin* plugin) +{ + return plugin->bundle_uri; +} + +LILV_API const LilvNode* +lilv_plugin_get_library_uri(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary((LilvPlugin*)plugin); + if (!plugin->binary_uri) { + // <plugin> lv2:binary ?binary + SordIter* i = lilv_world_query_internal(plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_binary, + NULL); + FOREACH_MATCH(i) { + const SordNode* binary_node = sord_iter_get_node(i, SORD_OBJECT); + if (sord_node_get_type(binary_node) == SORD_URI) { + ((LilvPlugin*)plugin)->binary_uri = + lilv_node_new_from_node(plugin->world, binary_node); + break; + } + } + sord_iter_free(i); + } + if (!plugin->binary_uri) { + LILV_WARNF("Plugin <%s> has no lv2:binary\n", + lilv_node_as_uri(lilv_plugin_get_uri(plugin))); + } + return plugin->binary_uri; +} + +LILV_API const LilvNodes* +lilv_plugin_get_data_uris(const LilvPlugin* plugin) +{ + return plugin->data_uris; +} + +LILV_API const LilvPluginClass* +lilv_plugin_get_class(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary((LilvPlugin*)plugin); + if (!plugin->plugin_class) { + // <plugin> a ?class + SordIter* c = lilv_world_query_internal(plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.rdf_a, + NULL); + FOREACH_MATCH(c) { + const SordNode* class_node = sord_iter_get_node(c, SORD_OBJECT); + if (sord_node_get_type(class_node) != SORD_URI) { + continue; + } + + LilvNode* klass = lilv_node_new_from_node(plugin->world, class_node); + if (!lilv_node_equals(klass, plugin->world->lv2_plugin_class->uri)) { + const LilvPluginClass* pclass = lilv_plugin_classes_get_by_uri( + plugin->world->plugin_classes, klass); + + if (pclass) { + ((LilvPlugin*)plugin)->plugin_class = pclass; + lilv_node_free(klass); + break; + } + } + + lilv_node_free(klass); + } + sord_iter_free(c); + + if (plugin->plugin_class == NULL) { + ((LilvPlugin*)plugin)->plugin_class = + plugin->world->lv2_plugin_class; + } + } + return plugin->plugin_class; +} + +static LilvNodes* +lilv_plugin_get_value_internal(const LilvPlugin* plugin, + const SordNode* predicate) +{ + lilv_plugin_load_if_necessary(plugin); + return lilv_world_find_nodes_internal( + plugin->world, plugin->plugin_uri->node, predicate, NULL); +} + +LILV_API bool +lilv_plugin_verify(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + if (plugin->parse_errors) { + return false; + } + + LilvNode* rdf_type = lilv_new_uri(plugin->world, LILV_NS_RDF "type"); + LilvNodes* results = lilv_plugin_get_value(plugin, rdf_type); + lilv_node_free(rdf_type); + if (!results) { + return false; + } + + lilv_nodes_free(results); + results = lilv_plugin_get_value_internal(plugin, + plugin->world->uris.doap_name); + if (!results) { + return false; + } + + lilv_nodes_free(results); + LilvNode* lv2_port = lilv_new_uri(plugin->world, LV2_CORE__port); + results = lilv_plugin_get_value(plugin, lv2_port); + lilv_node_free(lv2_port); + if (!results) { + return false; + } + + lilv_nodes_free(results); + return true; +} + +LILV_API LilvNode* +lilv_plugin_get_name(const LilvPlugin* plugin) +{ + LilvNodes* results = lilv_plugin_get_value_internal( + plugin, plugin->world->uris.doap_name); + + LilvNode* ret = NULL; + if (results) { + LilvNode* val = lilv_nodes_get_first(results); + if (lilv_node_is_string(val)) { + ret = lilv_node_duplicate(val); + } + lilv_nodes_free(results); + } + + if (!ret) { + LILV_WARNF("Plugin <%s> has no (mandatory) doap:name\n", + lilv_node_as_string(lilv_plugin_get_uri(plugin))); + } + + return ret; +} + +LILV_API LilvNodes* +lilv_plugin_get_value(const LilvPlugin* plugin, + const LilvNode* predicate) +{ + lilv_plugin_load_if_necessary(plugin); + return lilv_world_find_nodes(plugin->world, plugin->plugin_uri, predicate, NULL); +} + +LILV_API uint32_t +lilv_plugin_get_num_ports(const LilvPlugin* plugin) +{ + lilv_plugin_load_ports_if_necessary(plugin); + return plugin->num_ports; +} + +LILV_API void +lilv_plugin_get_port_ranges_float(const LilvPlugin* plugin, + float* min_values, + float* max_values, + float* def_values) +{ + lilv_plugin_load_ports_if_necessary(plugin); + LilvNode* min = NULL; + LilvNode* max = NULL; + LilvNode* def = NULL; + LilvNode** minptr = min_values ? &min : NULL; + LilvNode** maxptr = max_values ? &max : NULL; + LilvNode** defptr = def_values ? &def : NULL; + + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + lilv_port_get_range(plugin, plugin->ports[i], defptr, minptr, maxptr); + + if (min_values) { + if (lilv_node_is_float(min) || lilv_node_is_int(min)) { + min_values[i] = lilv_node_as_float(min); + } else { + min_values[i] = NAN; + } + } + + if (max_values) { + if (lilv_node_is_float(max) || lilv_node_is_int(max)) { + max_values[i] = lilv_node_as_float(max); + } else { + max_values[i] = NAN; + } + } + + if (def_values) { + if (lilv_node_is_float(def) || lilv_node_is_int(def)) { + def_values[i] = lilv_node_as_float(def); + } else { + def_values[i] = NAN; + } + } + + lilv_node_free(def); + lilv_node_free(min); + lilv_node_free(max); + } +} + +LILV_API uint32_t +lilv_plugin_get_num_ports_of_class_va(const LilvPlugin* plugin, + const LilvNode* class_1, + va_list args) +{ + lilv_plugin_load_ports_if_necessary(plugin); + + uint32_t count = 0; + + // Build array of classes from args so we can walk it several times + size_t n_classes = 0; + const LilvNode** classes = NULL; + for (LilvNode* c = NULL; (c = va_arg(args, LilvNode*)); ) { + classes = (const LilvNode**)realloc( + classes, ++n_classes * sizeof(LilvNode*)); + classes[n_classes - 1] = c; + } + + // Check each port against every type + for (unsigned i = 0; i < plugin->num_ports; ++i) { + LilvPort* port = plugin->ports[i]; + if (port && lilv_port_is_a(plugin, port, class_1)) { + bool matches = true; + for (size_t j = 0; j < n_classes; ++j) { + if (!lilv_port_is_a(plugin, port, classes[j])) { + matches = false; + break; + } + } + + if (matches) { + ++count; + } + } + } + + free(classes); + return count; +} + +LILV_API uint32_t +lilv_plugin_get_num_ports_of_class(const LilvPlugin* plugin, + const LilvNode* class_1, ...) +{ + va_list args; + va_start(args, class_1); + + uint32_t count = lilv_plugin_get_num_ports_of_class_va(plugin, class_1, args); + + va_end(args); + return count; +} + +LILV_API bool +lilv_plugin_has_latency(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + SordIter* ports = lilv_world_query_internal( + plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_port, + NULL); + + bool ret = false; + FOREACH_MATCH(ports) { + const SordNode* port = sord_iter_get_node(ports, SORD_OBJECT); + SordIter* prop = lilv_world_query_internal( + plugin->world, + port, + plugin->world->uris.lv2_portProperty, + plugin->world->uris.lv2_reportsLatency); + SordIter* des = lilv_world_query_internal( + plugin->world, + port, + plugin->world->uris.lv2_designation, + plugin->world->uris.lv2_latency); + const bool latent = !sord_iter_end(prop) || !sord_iter_end(des); + sord_iter_free(prop); + sord_iter_free(des); + if (latent) { + ret = true; + break; + } + } + sord_iter_free(ports); + + return ret; +} + +static const LilvPort* +lilv_plugin_get_port_by_property(const LilvPlugin* plugin, + const SordNode* port_property) +{ + lilv_plugin_load_ports_if_necessary(plugin); + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + LilvPort* port = plugin->ports[i]; + SordIter* iter = lilv_world_query_internal( + plugin->world, + port->node->node, + plugin->world->uris.lv2_portProperty, + port_property); + + const bool found = !sord_iter_end(iter); + sord_iter_free(iter); + + if (found) { + return port; + } + } + + return NULL; +} + +LILV_API const LilvPort* +lilv_plugin_get_port_by_designation(const LilvPlugin* plugin, + const LilvNode* port_class, + const LilvNode* designation) +{ + LilvWorld* world = plugin->world; + lilv_plugin_load_ports_if_necessary(plugin); + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + LilvPort* port = plugin->ports[i]; + SordIter* iter = lilv_world_query_internal( + world, + port->node->node, + world->uris.lv2_designation, + designation->node); + + const bool found = !sord_iter_end(iter) && + (!port_class || lilv_port_is_a(plugin, port, port_class)); + sord_iter_free(iter); + + if (found) { + return port; + } + } + + return NULL; +} + +LILV_API uint32_t +lilv_plugin_get_latency_port_index(const LilvPlugin* plugin) +{ + const LilvPort* prop_port = lilv_plugin_get_port_by_property( + plugin, plugin->world->uris.lv2_reportsLatency); + const LilvPort* des_port = lilv_plugin_get_port_by_property( + plugin, plugin->world->uris.lv2_latency); + if (prop_port) { + return prop_port->index; + } else if (des_port) { + return des_port->index; + } else { + return (uint32_t)-1; + } +} + +LILV_API bool +lilv_plugin_has_feature(const LilvPlugin* plugin, + const LilvNode* feature) +{ + lilv_plugin_load_if_necessary(plugin); + const SordNode* predicates[] = { plugin->world->uris.lv2_requiredFeature, + plugin->world->uris.lv2_optionalFeature, + NULL }; + + for (const SordNode** pred = predicates; *pred; ++pred) { + if (lilv_world_ask_internal( + plugin->world, plugin->plugin_uri->node, *pred, feature->node)) { + return true; + } + } + return false; +} + +LILV_API LilvNodes* +lilv_plugin_get_supported_features(const LilvPlugin* plugin) +{ + LilvNodes* optional = lilv_plugin_get_optional_features(plugin); + LilvNodes* required = lilv_plugin_get_required_features(plugin); + LilvNodes* result = lilv_nodes_merge(optional, required); + lilv_nodes_free(optional); + lilv_nodes_free(required); + return result; +} + +LILV_API LilvNodes* +lilv_plugin_get_optional_features(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + return lilv_world_find_nodes_internal(plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_optionalFeature, + NULL); +} + +LILV_API LilvNodes* +lilv_plugin_get_required_features(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + return lilv_world_find_nodes_internal(plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_requiredFeature, + NULL); +} + +LILV_API bool +lilv_plugin_has_extension_data(const LilvPlugin* plugin, + const LilvNode* uri) +{ + if (!lilv_node_is_uri(uri)) { + LILV_ERRORF("Extension data `%s' is not a URI\n", + sord_node_get_string(uri->node)); + return false; + } + + lilv_plugin_load_if_necessary(plugin); + return lilv_world_ask_internal( + plugin->world, + plugin->plugin_uri->node, + plugin->world->uris.lv2_extensionData, + uri->node); +} + +LILV_API LilvNodes* +lilv_plugin_get_extension_data(const LilvPlugin* plugin) +{ + return lilv_plugin_get_value_internal(plugin, plugin->world->uris.lv2_extensionData); +} + +LILV_API const LilvPort* +lilv_plugin_get_port_by_index(const LilvPlugin* plugin, + uint32_t index) +{ + lilv_plugin_load_ports_if_necessary(plugin); + if (index < plugin->num_ports) { + return plugin->ports[index]; + } else { + return NULL; + } +} + +LILV_API const LilvPort* +lilv_plugin_get_port_by_symbol(const LilvPlugin* plugin, + const LilvNode* symbol) +{ + lilv_plugin_load_ports_if_necessary(plugin); + for (uint32_t i = 0; i < plugin->num_ports; ++i) { + LilvPort* port = plugin->ports[i]; + if (lilv_node_equals(port->symbol, symbol)) { + return port; + } + } + + return NULL; +} + +LILV_API LilvNode* +lilv_plugin_get_project(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + + SordNode* lv2_project = sord_new_uri(plugin->world->world, + (const uint8_t*)LV2_CORE__project); + + SordIter* projects = lilv_world_query_internal(plugin->world, + plugin->plugin_uri->node, + lv2_project, + NULL); + + sord_node_free(plugin->world->world, lv2_project); + + if (sord_iter_end(projects)) { + sord_iter_free(projects); + return NULL; + } + + const SordNode* project = sord_iter_get_node(projects, SORD_OBJECT); + + sord_iter_free(projects); + return lilv_node_new_from_node(plugin->world, project); +} + +static const SordNode* +lilv_plugin_get_author(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + + SordNode* doap_maintainer = sord_new_uri( + plugin->world->world, NS_DOAP "maintainer"); + + SordIter* maintainers = lilv_world_query_internal( + plugin->world, + plugin->plugin_uri->node, + doap_maintainer, + NULL); + + if (sord_iter_end(maintainers)) { + sord_iter_free(maintainers); + + LilvNode* project = lilv_plugin_get_project(plugin); + if (!project) { + sord_node_free(plugin->world->world, doap_maintainer); + return NULL; + } + + maintainers = lilv_world_query_internal( + plugin->world, + project->node, + doap_maintainer, + NULL); + + lilv_node_free(project); + } + + sord_node_free(plugin->world->world, doap_maintainer); + + if (sord_iter_end(maintainers)) { + sord_iter_free(maintainers); + return NULL; + } + + const SordNode* author = sord_iter_get_node(maintainers, SORD_OBJECT); + + sord_iter_free(maintainers); + return author; +} + +static LilvNode* +lilv_plugin_get_author_property(const LilvPlugin* plugin, const uint8_t* uri) +{ + const SordNode* author = lilv_plugin_get_author(plugin); + if (author) { + SordWorld* sworld = plugin->world->world; + SordNode* pred = sord_new_uri(sworld, uri); + LilvNode* ret = lilv_plugin_get_one(plugin, author, pred); + sord_node_free(sworld, pred); + return ret; + } + return NULL; +} + +LILV_API LilvNode* +lilv_plugin_get_author_name(const LilvPlugin* plugin) +{ + return lilv_plugin_get_author_property(plugin, NS_FOAF "name"); +} + +LILV_API LilvNode* +lilv_plugin_get_author_email(const LilvPlugin* plugin) +{ + return lilv_plugin_get_author_property(plugin, NS_FOAF "mbox"); +} + +LILV_API LilvNode* +lilv_plugin_get_author_homepage(const LilvPlugin* plugin) +{ + return lilv_plugin_get_author_property(plugin, NS_FOAF "homepage"); +} + +LILV_API bool +lilv_plugin_is_replaced(const LilvPlugin* plugin) +{ + return plugin->replaced; +} + +LILV_API LilvUIs* +lilv_plugin_get_uis(const LilvPlugin* plugin) +{ + lilv_plugin_load_if_necessary(plugin); + + SordNode* ui_ui_node = sord_new_uri(plugin->world->world, + (const uint8_t*)LV2_UI__ui); + SordNode* ui_binary_node = sord_new_uri(plugin->world->world, + (const uint8_t*)LV2_UI__binary); + + LilvUIs* result = lilv_uis_new(); + SordIter* uis = lilv_world_query_internal(plugin->world, + plugin->plugin_uri->node, + ui_ui_node, + NULL); + + FOREACH_MATCH(uis) { + const SordNode* ui = sord_iter_get_node(uis, SORD_OBJECT); + + LilvNode* type = lilv_plugin_get_unique(plugin, ui, plugin->world->uris.rdf_a); + LilvNode* binary = lilv_plugin_get_one(plugin, ui, plugin->world->uris.lv2_binary); + if (!binary) { + binary = lilv_plugin_get_unique(plugin, ui, ui_binary_node); + } + + if (sord_node_get_type(ui) != SORD_URI + || !lilv_node_is_uri(type) + || !lilv_node_is_uri(binary)) { + lilv_node_free(binary); + lilv_node_free(type); + LILV_ERRORF("Corrupt UI <%s>\n", sord_node_get_string(ui)); + continue; + } + + LilvUI* lilv_ui = lilv_ui_new( + plugin->world, + lilv_node_new_from_node(plugin->world, ui), + type, + binary); + + zix_tree_insert((ZixTree*)result, lilv_ui, NULL); + } + sord_iter_free(uis); + + sord_node_free(plugin->world->world, ui_binary_node); + sord_node_free(plugin->world->world, ui_ui_node); + + if (lilv_uis_size(result) > 0) { + return result; + } else { + lilv_uis_free(result); + return NULL; + } +} + +LILV_API LilvNodes* +lilv_plugin_get_related(const LilvPlugin* plugin, const LilvNode* type) +{ + lilv_plugin_load_if_necessary(plugin); + + LilvWorld* const world = plugin->world; + LilvNodes* const related = lilv_world_find_nodes_internal( + world, + NULL, + world->uris.lv2_appliesTo, + lilv_plugin_get_uri(plugin)->node); + + if (!type) { + return related; + } + + LilvNodes* matches = lilv_nodes_new(); + LILV_FOREACH(nodes, i, related) { + LilvNode* node = (LilvNode*)lilv_collection_get((ZixTree*)related, i); + if (lilv_world_ask_internal( + world, node->node, world->uris.rdf_a, type->node)) { + zix_tree_insert((ZixTree*)matches, + lilv_node_new_from_node(world, node->node), + NULL); + } + } + + lilv_nodes_free(related); + return matches; +} + +static SerdEnv* +new_lv2_env(const SerdNode* base) +{ + SerdEnv* env = serd_env_new(base); + +#define USTR(s) ((const uint8_t*)(s)) + serd_env_set_prefix_from_strings(env, USTR("doap"), USTR(LILV_NS_DOAP)); + serd_env_set_prefix_from_strings(env, USTR("foaf"), USTR(LILV_NS_FOAF)); + serd_env_set_prefix_from_strings(env, USTR("lv2"), USTR(LILV_NS_LV2)); + serd_env_set_prefix_from_strings(env, USTR("owl"), USTR(LILV_NS_OWL)); + serd_env_set_prefix_from_strings(env, USTR("rdf"), USTR(LILV_NS_RDF)); + serd_env_set_prefix_from_strings(env, USTR("rdfs"), USTR(LILV_NS_RDFS)); + serd_env_set_prefix_from_strings(env, USTR("xsd"), USTR(LILV_NS_XSD)); + + return env; +} + +static void +maybe_write_prefixes(SerdWriter* writer, SerdEnv* env, FILE* file) +{ + fseek(file, 0, SEEK_END); + if (ftell(file) == 0) { + serd_env_foreach( + env, (SerdPrefixSink)serd_writer_set_prefix, writer); + } else { + fprintf(file, "\n"); + } +} + +LILV_API void +lilv_plugin_write_description(LilvWorld* world, + const LilvPlugin* plugin, + const LilvNode* base_uri, + FILE* plugin_file) +{ + const LilvNode* subject = lilv_plugin_get_uri(plugin); + const uint32_t num_ports = lilv_plugin_get_num_ports(plugin); + const SerdNode* base = sord_node_to_serd_node(base_uri->node); + SerdEnv* env = new_lv2_env(base); + + SerdWriter* writer = serd_writer_new( + SERD_TURTLE, + (SerdStyle)(SERD_STYLE_ABBREVIATED|SERD_STYLE_CURIED), + env, + NULL, + serd_file_sink, + plugin_file); + + // Write prefixes if this is a new file + maybe_write_prefixes(writer, env, plugin_file); + + // Write plugin description + SordIter* plug_iter = lilv_world_query_internal( + world, subject->node, NULL, NULL); + sord_write_iter(plug_iter, writer); + + // Write port descriptions + for (uint32_t i = 0; i < num_ports; ++i) { + const LilvPort* port = plugin->ports[i]; + SordIter* port_iter = lilv_world_query_internal( + world, port->node->node, NULL, NULL); + sord_write_iter(port_iter, writer); + } + + serd_writer_free(writer); + serd_env_free(env); +} + +LILV_API void +lilv_plugin_write_manifest_entry(LilvWorld* world, + const LilvPlugin* plugin, + const LilvNode* base_uri, + FILE* manifest_file, + const char* plugin_file_path) +{ + const LilvNode* subject = lilv_plugin_get_uri(plugin); + const SerdNode* base = sord_node_to_serd_node(base_uri->node); + SerdEnv* env = new_lv2_env(base); + + SerdWriter* writer = serd_writer_new( + SERD_TURTLE, + (SerdStyle)(SERD_STYLE_ABBREVIATED|SERD_STYLE_CURIED), + env, + NULL, + serd_file_sink, + manifest_file); + + // Write prefixes if this is a new file + maybe_write_prefixes(writer, env, manifest_file); + + // Write manifest entry + serd_writer_write_statement( + writer, 0, NULL, + sord_node_to_serd_node(subject->node), + sord_node_to_serd_node(plugin->world->uris.rdf_a), + sord_node_to_serd_node(plugin->world->uris.lv2_Plugin), 0, 0); + + const SerdNode file_node = serd_node_from_string( + SERD_URI, (const uint8_t*)plugin_file_path); + serd_writer_write_statement( + writer, 0, NULL, + sord_node_to_serd_node(subject->node), + sord_node_to_serd_node(plugin->world->uris.rdfs_seeAlso), + &file_node, 0, 0); + + serd_writer_free(writer); + serd_env_free(env); +} |