juce/source/src/audio/plugin_client/LV2/lv2_rdf_gen.cpp

   1 /*
   2  * LV2 ttl generator for JUCE Plugins
   3  */
   4
   5 #include <fstream>
   6 #include <iostream>
   7 #include <stdint.h>
   8
   9 #include "JuceHeader.h"
  10 #include "JucePluginCharacteristics.h"
  11
  12 #include JucePlugin_LV2Includes
  13
  14 // These are dummy values!
  15 enum FakePlugCategory
  16 {
  17     kPlugCategUnknown,
  18     kPlugCategEffect,
  19     kPlugCategSynth,
  20     kPlugCategAnalysis,
  21     kPlugCategMastering,
  22     kPlugCategSpacializer,
  23     kPlugCategRoomFx,
  24     kPlugSurroundFx,
  25     kPlugCategRestoration,
  26     kPlugCategOfflineProcess,
  27     kPlugCategGenerator
  28 };
  29
  30 String name_to_symbol(String Name)
  31 {
  32     String Symbol = Name.trimStart().trimEnd().replace(" ", "_").toLowerCase();
  33
  34     for (int i=0; i < Symbol.length(); i++) {
  35         if (std::isalpha(Symbol[i]) || std::isdigit(Symbol[i]) || Symbol[i] == '_') {
  36             // nothing
  37         } else {
  38             Symbol[i] == '_';
  39         }
  40     }
  41     return Symbol;
  42 }
  43
  44 String float_to_string(float value)
  45 {
  46     if (value < 0.0f || value > 1.0f) {
  47         std::cerr << "WARNING - Parameter uses out-of-bounds default value -> " << value << std::endl;
  48     }
  49     String string(value);
  50     if (!string.contains(".")) {
  51         string += ".0";
  52     }
  53     return string;
  54 }
  55
  56 String get_uri()
  57 {
  58     return String("urn:" JucePlugin_Manufacturer ":" JucePlugin_Name ":" JucePlugin_VersionString).replace(" ", "_");
  59 }
  60
  61 String get_juce_ui_uri()
  62 {
  63     return String("urn:" JucePlugin_Manufacturer ":" JucePlugin_Name ":JUCE-Native-UI").replace(" ", "_");
  64 }
  65
  66 String get_external_ui_uri()
  67 {
  68     return String("urn:" JucePlugin_Manufacturer ":" JucePlugin_Name ":JUCE-External-UI").replace(" ", "_");
  69 }
  70
  71 String get_binary_name()
  72 {
  73     return String(JucePlugin_Name).replace(" ", "_");
  74 }
  75
  76 String get_plugin_type()
  77 {
  78     String ptype;
  79
  80     switch (JucePlugin_VSTCategory) {
  81     case kPlugCategSynth:
  82         ptype += "lv2:InstrumentPlugin";
  83         break;
  84     case kPlugCategAnalysis:
  85         ptype += "lv2:AnalyserPlugin";
  86         break;
  87     case kPlugCategMastering:
  88         ptype += "lv2:DynamicsPlugin";
  89         break;
  90     case kPlugCategSpacializer:
  91         ptype += "lv2:SpatialPlugin";
  92         break;
  93     case kPlugCategRoomFx:
  94         ptype += "lv2:ModulatorPlugin";
  95         break;
  96     case kPlugCategRestoration:
  97         ptype += "lv2:UtilityPlugin";
  98         break;
  99     case kPlugCategGenerator:
 100         ptype += "lv2:GeneratorPlugin";
 101         break;
 102     }
 103
 104     if (ptype.isNotEmpty()) {
 105         ptype += ", ";
 106     }
 107
 108     ptype += "lv2:Plugin";
 109     return ptype;
 110 }
 111
 112 String get_manifest_ttl(String URI, String Binary)
 113 {
 114     String manifest;
 115     manifest += "@prefix lv2:  <http://lv2plug.in/ns/lv2core#> .\n";
 116     manifest += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
 117     manifest += "\n";
 118     manifest += "<" + URI + ">\n";
 119     manifest += "    a lv2:Plugin ;\n";
 120     manifest += "    lv2:binary <" + Binary + ".so> ;\n";
 121     manifest += "    rdfs:seeAlso <" + Binary +".ttl> .\n";
 122     return manifest;
 123 }
 124
 125 String get_plugin_ttl(String URI, String Binary)
 126 {
 127     JucePlugin_LV2ClassName* JucePlugin = new JucePlugin_LV2ClassName();
 128
 129     String plugin;
 130     plugin += "@prefix doap:  <http://usefulinc.com/ns/doap#> .\n";
 131     //plugin += "@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n";
 132     //plugin += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
 133     plugin += "@prefix lv2:   <http://lv2plug.in/ns/lv2core#> .\n";
 134     plugin += "@prefix lv2ev: <http://lv2plug.in/ns/ext/event#> .\n";
 135     plugin += "@prefix lv2ui: <http://lv2plug.in/ns/extensions/ui#> .\n";
 136     plugin += "\n";
 137
 138     if (JucePlugin->hasEditor()) {
 139         plugin += "<" + get_juce_ui_uri() + ">\n";
 140         plugin += "    a lv2ui:JUCEUI ;\n";
 141         plugin += "    lv2ui:binary <" + Binary + ".so> .\n";
 142         plugin += "<" + get_external_ui_uri() + ">\n";
 143         plugin += "    a lv2ui:external ;\n";
 144         plugin += "    lv2ui:binary <" + Binary + ".so> .\n";
 145         plugin += "\n";
 146     }
 147
 148     plugin += "<" + URI + ">\n";
 149     plugin += "    a " + get_plugin_type() + " ;\n";
 150     plugin += "\n";
 151
 152     uint32_t i, port_index = 0;
 153
 154 #if JucePlugin_WantsMidiInput
 155     plugin += "    lv2:port [\n";
 156     plugin += "      a lv2:InputPort, lv2ev:EventPort;\n";
 157     plugin += "      lv2ev:supportsEvent <http://lv2plug.in/ns/ext/midi#MidiEvent> ;\n";
 158     plugin += "      lv2:index " + String(port_index) + ";\n";
 159     plugin += "      lv2:symbol \"midi_in\";\n";
 160     plugin += "      lv2:name \"MIDI Input\";\n";
 161     plugin += "    ] ;\n";
 162     port_index++;
 163 #endif
 164
 165 #if JucePlugin_ProducesMidiOutput
 166     plugin += "    lv2:port [\n";
 167     plugin += "      a lv2:OutputPort, lv2ev:EventPort;\n";
 168     plugin += "      lv2ev:supportsEvent <http://lv2plug.in/ns/ext/midi#MidiEvent> ;\n";
 169     plugin += "      lv2:index " + String(port_index) + ";\n";
 170     plugin += "      lv2:symbol \"midi_out\";\n";
 171     plugin += "      lv2:name \"MIDI Output\";\n";
 172     plugin += "    ] ;\n";
 173     port_index++;
 174 #endif
 175
 176 #if JucePlugin_WantsMidiInput || JucePlugin_ProducesMidiOutput
 177     plugin += "\n";
 178 #endif
 179
 180     for (i=0; i<JucePlugin_MaxNumInputChannels; i++) {
 181         if (i == 0) {
 182             plugin += "    lv2:port [\n";
 183         } else {
 184             plugin += "    [\n";
 185         }
 186
 187         plugin += "      a lv2:InputPort, lv2:AudioPort;\n";
 188         //plugin += "      lv2:datatype lv2:float;\n";
 189         plugin += "      lv2:index " + String(port_index) + ";\n";
 190         plugin += "      lv2:symbol \"audio_in_" + String(i+1) + "\";\n";
 191         plugin += "      lv2:name \"Audio Input " + String(i+1) + "\";\n";
 192
 193         if (i == JucePlugin_MaxNumInputChannels-1) {
 194             plugin += "    ] ;\n";
 195         } else {
 196             plugin += "    ],\n";
 197         }
 198
 199         port_index++;
 200     }
 201
 202     for (i=0; i<JucePlugin_MaxNumOutputChannels; i++) {
 203         if (i == 0) {
 204             plugin += "    lv2:port [\n";
 205         } else {
 206             plugin += "    [\n";
 207         }
 208
 209         plugin += "      a lv2:OutputPort, lv2:AudioPort;\n";
 210         //plugin += "      lv2:datatype lv2:float;\n";
 211         plugin += "      lv2:index " + String(port_index) + ";\n";
 212         plugin += "      lv2:symbol \"audio_out_" + String(i+1) + "\";\n";
 213         plugin += "      lv2:name \"Audio Output " + String(i+1) + "\";\n";
 214
 215         if (i == JucePlugin_MaxNumOutputChannels-1) {
 216             plugin += "    ] ;\n";
 217         } else {
 218             plugin += "    ],\n";
 219         }
 220
 221         port_index++;
 222     }
 223
 224 #if JucePlugin_MaxNumInputChannels > 0 || JucePlugin_MaxNumOutputChannels > 0
 225     plugin += "\n";
 226 #endif
 227
 228     for (i=0; i < JucePlugin->getNumParameters(); i++) {
 229         if (i == 0) {
 230             plugin += "    lv2:port [\n";
 231         } else {
 232             plugin += "    [\n";
 233         }
 234
 235         plugin += "      a lv2:InputPort;\n";
 236         plugin += "      a lv2:ControlPort;\n";
 237         //plugin += "      lv2:datatype lv2:float;\n";
 238         plugin += "      lv2:index " + String(port_index) + ";\n";
 239         plugin += "      lv2:symbol \"" + name_to_symbol(JucePlugin->getParameterName(i)) + "\";\n";
 240         plugin += "      lv2:name \"" + JucePlugin->getParameterName(i) + "\";\n";
 241         plugin += "      lv2:default " + float_to_string(JucePlugin->getParameter(i)) + ";\n";
 242         plugin += "      lv2:minimum 0.0;\n";
 243         plugin += "      lv2:maximum 1.0;\n";
 244         // TODO - units
 245
 246         if (i == JucePlugin_MaxNumOutputChannels-1) {
 247             plugin += "    ] ;\n";
 248         } else {
 249             plugin += "    ],\n";
 250         }
 251
 252         port_index++;
 253     }
 254
 255     if (JucePlugin->getNumParameters() > 0) {
 256         plugin += "\n";
 257     }
 258
 259     plugin += "    doap:name \"" + String(JucePlugin_Name) + "\" ;\n";
 260     plugin += "    doap:creator \"" + String(JucePlugin_Manufacturer) + "\" .\n";
 261
 262     delete JucePlugin;
 263     return plugin;
 264 }
 265
 266 int main(int argc, char *argv[])
 267 {
 268     String URI = get_uri();
 269     String Binary = get_binary_name();
 270     String BinaryTTL = Binary + ".ttl";
 271
 272     std::cout << "Writing manifest.ttl...";
 273     std::fstream manifest("manifest.ttl", std::ios::out);
 274     manifest << get_manifest_ttl(URI, Binary) << std::endl;
 275     manifest.close();
 276     std::cout << " done!" << std::endl;
 277
 278     std::cout << "Writing " << BinaryTTL;
 279     std::fstream plugin(BinaryTTL.toUTF8(), std::ios::out);
 280     plugin << get_plugin_ttl(URI, Binary) << std::endl;
 281     plugin.close();
 282     std::cout << " done!" << std::endl;
 283
 284     return 0;
 285 }