David Robillard
3696f98e6f
map MIDI event types (fix #4889). All uri-map contexts are now just ignored, and equivalent to urid (which is equivalent to uri-map with context NULL). We now just hope that no event types are mapped after UINT16_MAX URIs have been mapped, and die horribly otherwise. This is exceedingly unlikely to happen any time in the next several years, if ever. git-svn-id: svn://localhost/ardour2/branches/3.0@12462 d708f5d6-7413-0410-9779-e7cbd77b26cf
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*
|
|
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 <string>
|
|
#include <utility>
|
|
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "pbd/error.h"
|
|
|
|
#include "ardour/uri_map.h"
|
|
|
|
namespace ARDOUR {
|
|
|
|
static uint32_t
|
|
c_uri_map_uri_to_id(LV2_URI_Map_Callback_Data callback_data,
|
|
const char* map,
|
|
const char* uri)
|
|
{
|
|
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;
|
|
}
|
|
|
|
static LV2_URID
|
|
c_urid_map(LV2_URID_Map_Handle handle,
|
|
const char* 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_to_id(const char* uri)
|
|
{
|
|
const std::string urimm(uri);
|
|
const Map::const_iterator i = _map.find(urimm);
|
|
if (i != _map.end()) {
|
|
return i->second;
|
|
}
|
|
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
|
|
|