- ChanMapping(ChanCount identity) {
- for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
- for (size_t i = 0; i <= identity.get(*t); ++i)
- set(*t, i, i);
- }
- }
-
- uint32_t get(DataType t, uint32_t from) {
- Mappings::iterator tm = _mappings.find(t);
- assert(tm != _mappings.end());
- TypeMapping::iterator m = tm->second.find(from);
- assert(m != tm->second.end());
- return m->second;
- }
-
- void set(DataType t, uint32_t from, uint32_t to) {
- Mappings::iterator tm = _mappings.find(t);
- if (tm == _mappings.end()) {
- tm = _mappings.insert(std::make_pair(t, TypeMapping())).first;
- }
- tm->second.insert(std::make_pair(from, to));
- }
-
- /** Increase the 'to' field of every mapping for type @a t by @a delta */
- void offset(DataType t, uint32_t delta) {
- Mappings::iterator tm = _mappings.find(t);
- if (tm != _mappings.end()) {
- for (TypeMapping::iterator m = tm->second.begin(); m != tm->second.end(); ++m) {
- m->second += delta;
- }
- }
- }
+ ChanMapping(ARDOUR::ChanCount identity);
+
+ uint32_t get(DataType t, uint32_t from, bool* valid);
+ void set(DataType t, uint32_t from, uint32_t to);
+ void offset_from(DataType t, int32_t delta);
+ void offset_to(DataType t, int32_t delta);