parent
9bc0317e77
commit
b55c2af8ba
@ -0,0 +1,5 @@
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set(LIB_SRCS
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urid_mapper.cpp
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)
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add_library(noisicaa-lv2 SHARED ${LIB_SRCS})
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@ -0,0 +1,83 @@
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#include <assert.h>
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#include "noisicaa/lv2/urid_mapper.h"
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namespace noisicaa {
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StaticURIDMapper::StaticURIDMapper() {
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LV2_URID urid = 0;
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_rmap[urid++] = "http://lv2plug.in/ns/ext/midi#MidiEvent";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#frameTime";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Blank";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Bool";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Chunk";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Double";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Float";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Int";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Long";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Literal";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Object";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Path";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Property";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Resource";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Sequence";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#String";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Tuple";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#URI";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#URID";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Vector";
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_rmap[urid++] = "http://lv2plug.in/ns/ext/atom#Event";
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assert(urid == _num_urids);
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urid = _first_urid;
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for (const auto& uri : _rmap) {
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_map[uri] = urid++;
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}
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}
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LV2_URID StaticURIDMapper::map(const char* uri) {
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const auto& it = _map.find(uri);
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if (it == _map.end()) {
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return 0;
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}
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return it->second;
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}
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const char* StaticURIDMapper::unmap(LV2_URID urid) const {
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if (urid < _first_urid || urid >= _first_urid + _num_urids) {
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return nullptr;
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}
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return _rmap[urid - _first_urid];
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}
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LV2_URID DynamicURIDMapper::map(const char* uri) {
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LV2_URID urid = StaticURIDMapper::map(uri);
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if (urid != 0) {
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return urid;
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}
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const auto& it = _map.find(uri);
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if (it == _map.end()) {
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urid = _next_urid++;
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_map.emplace(uri, urid);
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_rmap.emplace(urid, uri);
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return urid;
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}
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return it->second;
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}
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const char* DynamicURIDMapper::unmap(LV2_URID urid) const {
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const char* uri = StaticURIDMapper::unmap(urid);
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if (uri != nullptr) {
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return uri;
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}
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const auto& it = _rmap.find(urid);
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if (it == _rmap.end()) {
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return nullptr;
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}
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return it->second.c_str();
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}
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} // namespace noisicaa
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// -*- mode: c++ -*-
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#ifndef _NOISICAA_LV2_URID_MAPPER_H
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#define _NOISICAA_LV2_URID_MAPPER_H
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#include <map>
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#include <unordered_map>
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#include <vector>
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#include "string.h"
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#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
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namespace noisicaa {
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struct cmp_str;
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using namespace std;
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class URIDMapper {
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public:
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virtual ~URIDMapper() {}
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virtual LV2_URID map(const char* uri) = 0;
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virtual const char* unmap(LV2_URID urid) const = 0;
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};
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class StaticURIDMapper : public URIDMapper {
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public:
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StaticURIDMapper();
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LV2_URID map(const char* uri) override;
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const char* unmap(LV2_URID urid) const override;
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private:
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static const LV2_URID _first_urid = 100;
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static const int _num_urids = 21;
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struct cmp_cstr {
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bool operator()(const char *a, const char *b) {
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return strcmp(a, b) < 0;
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}
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};
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std::map<const char*, LV2_URID, cmp_cstr> _map;
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const char* _rmap[_num_urids];
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};
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class DynamicURIDMapper : public StaticURIDMapper {
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public:
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LV2_URID map(const char* uri) override;
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const char* unmap(LV2_URID urid) const override;
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private:
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unordered_map<string, LV2_URID> _map;
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unordered_map<LV2_URID, string> _rmap;
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LV2_URID _next_urid = 1000;
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};
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} // namespace noisicaa
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#endif
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from libc.stdint cimport uint32_t
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cdef extern from "lv2/lv2plug.in/ns/ext/urid/urid.h" nogil:
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ctypedef uint32_t LV2_URID
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cdef extern from "noisicaa/lv2/urid_mapper.h" namespace "noisicaa" nogil:
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cppclass URIDMapper:
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LV2_URID map(const char* uri)
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const char* unmap(LV2_URID urid) const
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cppclass StaticURIDMapper(URIDMapper):
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pass
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cppclass DynamicURIDMapper(URIDMapper):
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pass
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#include <assert.h>
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#include "noisicore/host_system_lv2.h"
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namespace noisicaa {
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LV2SubSystem::~LV2SubSystem() {
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cleanup();
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}
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Status LV2SubSystem::setup() {
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assert(lilv_world == nullptr);
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lilv_world = lilv_world_new();
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if (lilv_world == nullptr) {
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return Status::Error("Failed to create lilv world.");
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}
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lilv_world_load_all(lilv_world);
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urid_map.handle = &_urid_mapper;
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urid_map.map = LV2SubSystem::_urid_map_proxy;
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urid_unmap.handle = &_urid_mapper;
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urid_unmap.unmap = LV2SubSystem::_urid_unmap_proxy;
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urid.midi_event = map("http://lv2plug.in/ns/ext/midi#MidiEvent");
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urid.atom_frame_time = map("http://lv2plug.in/ns/ext/atom#frameTime");
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urid.atom_blank = map("http://lv2plug.in/ns/ext/atom#Blank");
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urid.atom_bool = map("http://lv2plug.in/ns/ext/atom#Bool");
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urid.atom_chunk = map("http://lv2plug.in/ns/ext/atom#Chunk");
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urid.atom_double = map("http://lv2plug.in/ns/ext/atom#Double");
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urid.atom_float = map("http://lv2plug.in/ns/ext/atom#Float");
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urid.atom_int = map("http://lv2plug.in/ns/ext/atom#Int");
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urid.atom_long = map("http://lv2plug.in/ns/ext/atom#Long");
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urid.atom_literal = map("http://lv2plug.in/ns/ext/atom#Literal");
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urid.atom_object = map("http://lv2plug.in/ns/ext/atom#Object");
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urid.atom_path = map("http://lv2plug.in/ns/ext/atom#Path");
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urid.atom_property = map("http://lv2plug.in/ns/ext/atom#Property");
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urid.atom_resource = map("http://lv2plug.in/ns/ext/atom#Resource");
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urid.atom_sequence = map("http://lv2plug.in/ns/ext/atom#Sequence");
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urid.atom_string = map("http://lv2plug.in/ns/ext/atom#String");
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urid.atom_tuple = map("http://lv2plug.in/ns/ext/atom#Tuple");
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urid.atom_uri = map("http://lv2plug.in/ns/ext/atom#URI");
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urid.atom_urid = map("http://lv2plug.in/ns/ext/atom#URID");
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urid.atom_vector = map("http://lv2plug.in/ns/ext/atom#Vector");
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urid.atom_event = map("http://lv2plug.in/ns/ext/atom#Event");
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return Status::Ok();
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}
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void LV2SubSystem::cleanup() {
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if (lilv_world != nullptr) {
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lilv_world_free(lilv_world);
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lilv_world = nullptr;
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}
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}
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LV2_URID LV2SubSystem::_urid_map_proxy(LV2_URID_Map_Handle handle, const char* uri) {
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return ((URIDMapper*)handle)->map(uri);
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}
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const char* LV2SubSystem::_urid_unmap_proxy(LV2_URID_Unmap_Handle handle, LV2_URID urid) {
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return ((URIDMapper*)handle)->unmap(urid);
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}
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} // namespace noisicaa
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// -*- mode: c++ -*-
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#ifndef _NOISICORE_HOST_SYSTEM_LV2_H
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#define _NOISICORE_HOST_SYSTEM_LV2_H
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#include <unordered_map>
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#include "lilv/lilv.h"
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#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
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#include "noisicaa/lv2/urid_mapper.h"
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#include "noisicore/status.h"
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namespace noisicaa {
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class LV2SubSystem {
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public:
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~LV2SubSystem();
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Status setup();
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void cleanup();
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LilvWorld* lilv_world = nullptr;
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LV2_URID_Map urid_map = { nullptr, nullptr };
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LV2_URID_Unmap urid_unmap = { nullptr, nullptr };
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LV2_URID map(const char* uri) { return _urid_mapper.map(uri); }
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const char* unmap(LV2_URID urid) { return _urid_mapper.unmap(urid); }
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struct {
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LV2_URID midi_event;
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LV2_URID atom_frame_time;
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LV2_URID atom_blank;
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LV2_URID atom_bool;
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LV2_URID atom_chunk;
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LV2_URID atom_double;
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LV2_URID atom_float;
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LV2_URID atom_int;
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LV2_URID atom_long;
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LV2_URID atom_literal;
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LV2_URID atom_object;
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LV2_URID atom_path;
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LV2_URID atom_property;
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LV2_URID atom_resource;
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LV2_URID atom_sequence;
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LV2_URID atom_string;
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LV2_URID atom_tuple;
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LV2_URID atom_uri;
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LV2_URID atom_urid;
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LV2_URID atom_vector;
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LV2_URID atom_event;
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} urid;
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private:
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DynamicURIDMapper _urid_mapper;
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static LV2_URID _urid_map_proxy(LV2_URID_Map_Handle handle, const char* uri);
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static const char* _urid_unmap_proxy(LV2_URID_Unmap_Handle handle, LV2_URID urid);
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};
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} // namespace noisicaa
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#endif
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Loading…
Reference in new issue