-/* This file is part of Ingen.
- * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
- *
- * Ingen is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option) any later
- * version.
- *
- * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#define __STDC_LIMIT_MACROS 1
+/*
+ Copyright (C) 2008-2011 Paul Davis
+ Author: David Robillard
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
#include <cassert>
-#include <iostream>
+#include <string>
+#include <utility>
+
#include <stdint.h>
-#include "ardour/uri_map.h"
+#include <string.h>
-using namespace std;
+#include "pbd/error.h"
+
+#include "ardour/uri_map.h"
namespace ARDOUR {
-
-URIMap::URIMap()
- : next_uri_id(1)
+static uint32_t
+c_uri_map_uri_to_id(LV2_URI_Map_Callback_Data callback_data,
+ const char* map,
+ const char* uri)
{
- uri_map_feature_data.uri_to_id = &URIMap::uri_map_uri_to_id;
- uri_map_feature_data.callback_data = this;
- uri_map_feature.URI = LV2_URI_MAP_URI;
- uri_map_feature.data = &uri_map_feature_data;
+ URIMap* const me = (URIMap*)callback_data;
+ const uint32_t id = me->uri_to_id(uri);
+
+ /* The event context with the uri-map extension guarantees a value in the
+ range of uint16_t. Ardour used to map to a separate range to achieve
+ this, but unfortunately some plugins are broken and use the incorrect
+ context. To compensate, we simply use the same context for everything
+ and hope that anything in the event context gets mapped before
+ UINT16_MAX is reached (which will be fine unless something seriously
+ weird is going on). If this fails there is nothing we can do, die.
+ */
+ assert(!map || strcmp(map, "http://lv2plug.in/ns/ext/event")
+ || id < UINT16_MAX);
+
+ return id;
}
-
-uint32_t
-URIMap::uri_to_id(const char* map,
- const char* uri)
+static LV2_URID
+c_urid_map(LV2_URID_Map_Handle handle,
+ const char* uri)
{
- return uri_map_uri_to_id(this, map, uri);
+ URIMap* const me = (URIMap*)handle;
+ return me->uri_to_id(uri);
}
+static const char*
+c_urid_unmap(LV2_URID_Unmap_Handle handle,
+ LV2_URID urid)
+{
+ URIMap* const me = (URIMap*)handle;
+ return me->id_to_uri(urid);
+}
+
+URIMap::URIMap()
+{
+ _uri_map_feature_data.uri_to_id = c_uri_map_uri_to_id;
+ _uri_map_feature_data.callback_data = this;
+ _uri_map_feature.URI = LV2_URI_MAP_URI;
+ _uri_map_feature.data = &_uri_map_feature_data;
+
+ _urid_map_feature_data.map = c_urid_map;
+ _urid_map_feature_data.handle = this;
+ _urid_map_feature.URI = LV2_URID_MAP_URI;
+ _urid_map_feature.data = &_urid_map_feature_data;
+
+ _urid_unmap_feature_data.unmap = c_urid_unmap;
+ _urid_unmap_feature_data.handle = this;
+ _urid_unmap_feature.URI = LV2_URID_UNMAP_URI;
+ _urid_unmap_feature.data = &_urid_unmap_feature_data;
+}
uint32_t
-URIMap::uri_map_uri_to_id(LV2_URI_Map_Callback_Data callback_data,
- const char* /*map*/,
- const char* uri)
+URIMap::uri_to_id(const char* uri)
{
- // TODO: map ignored, < UINT16_MAX assumed
-
- URIMap* me = (URIMap*)callback_data;
- uint32_t ret = 0;
-
- Map::iterator i = me->uri_map.find(uri);
- if (i != me->uri_map.end()) {
- ret = i->second;
- } else {
- ret = me->next_uri_id++;
- me->uri_map.insert(make_pair(string(uri), ret));
+ const std::string urimm(uri);
+ const Map::const_iterator i = _map.find(urimm);
+ if (i != _map.end()) {
+ return i->second;
}
-
- /*cout << "URI MAP (" << (map ? (void*)map : NULL)
- << "): " << uri << " -> " << ret << endl;*/
-
- assert(ret <= UINT16_MAX);
- return ret;
+ const uint32_t id = _map.size() + 1;
+ _map.insert(std::make_pair(urimm, id));
+ _unmap.insert(std::make_pair(id, urimm));
+ return id;
}
+const char*
+URIMap::id_to_uri(const uint32_t id) const
+{
+ const Unmap::const_iterator i = _unmap.find(id);
+ return (i != _unmap.end()) ? i->second.c_str() : NULL;
+}
} // namespace ARDOUR