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Split LV2 export code into new file

tags/2020-07-14
falkTX 6 years ago
parent
a82fff059b
commit
c742e91f03
2 changed files with 466 additions and 448 deletions
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  1. +6
    -448
      libs/juce/source/modules/juce_audio_plugin_client/LV2/juce_LV2_Wrapper.cpp
  2. +460
    -0
      libs/juce/source/modules/juce_audio_plugin_client/LV2/juce_LV2_Wrapper_Exporter.cpp

+ 6
- 448
libs/juce/source/modules/juce_audio_plugin_client/LV2/juce_LV2_Wrapper.cpp View File

@@ -83,32 +83,10 @@
#define JUCE_LV2_STATE_STRING_URI "urn:juce:stateString"
#define JUCE_LV2_STATE_BINARY_URI "urn:juce:stateBinary"

//==============================================================================
// Various helper functions for creating the ttl files

#if JUCE_MAC
#define PLUGIN_EXT ".dylib"
#elif JUCE_LINUX
#define PLUGIN_EXT ".so"
#elif JUCE_WINDOWS
#define PLUGIN_EXT ".dll"
#endif

using namespace juce;

/** Returns plugin type, defined in AppConfig.h or JucePluginCharacteristics.h */
const String getPluginType()
{
String pluginType;
#ifdef JucePlugin_LV2Category
pluginType = "lv2:" JucePlugin_LV2Category;
pluginType += ", ";
#elif JucePlugin_IsSynth
pluginType = "lv2:InstrumentPlugin, ";
#endif
pluginType += "lv2:Plugin";
return pluginType;
}
//==============================================================================
// Various helper functions

/** Returns plugin URI */
static const String& getPluginURI()
@@ -154,424 +132,6 @@ void findMaxTotalChannels (AudioProcessor* const filter, int& maxTotalIns, int&
#endif
}

static Array<String> usedSymbols;

/** Converts a parameter name to an LV2 compatible symbol. */
const String nameToSymbol (const String& name, const uint32 portIndex)
{
String symbol, trimmedName = name.trimStart().trimEnd().toLowerCase();

if (trimmedName.isEmpty())
{
symbol += "lv2_port_";
symbol += String(portIndex+1);
}
else
{
for (int i=0; i < trimmedName.length(); ++i)
{
const juce_wchar c = trimmedName[i];
if (i == 0 && std::isdigit(c))
symbol += "_";
else if (std::isalpha(c) || std::isdigit(c))
symbol += c;
else
symbol += "_";
}
}

// Do not allow identical symbols
if (usedSymbols.contains(symbol))
{
int offset = 2;
String offsetStr = "_2";
symbol += offsetStr;

while (usedSymbols.contains(symbol))
{
offset += 1;
String newOffsetStr = "_" + String(offset);
symbol = symbol.replace(offsetStr, newOffsetStr);
offsetStr = newOffsetStr;
}
}
usedSymbols.add(symbol);

return symbol;
}

/** Prevents NaN or out of 0.0<->1.0 bounds parameter values. */
float safeParamValue (float value)
{
if (std::isnan(value))
value = 0.0f;
else if (value < 0.0f)
value = 0.0f;
else if (value > 1.0f)
value = 1.0f;
return value;
}

/** Create the manifest.ttl file contents */
const String makeManifestFile (AudioProcessor* const filter, const String& binary)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix pset: <" LV2_PRESETS_PREFIX "> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix ui: <" LV2_UI_PREFIX "> .\n";
text += "\n";

// Plugin
text += "<" + pluginURI + ">\n";
text += " a lv2:Plugin ;\n";
text += " lv2:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " rdfs:seeAlso <" + binary + ".ttl> .\n";
text += "\n";

#if ! JUCE_AUDIOPROCESSOR_NO_GUI
// UIs
if (filter->hasEditor())
{
text += "<" + pluginURI + "#ExternalUI>\n";
text += " a <" LV2_EXTERNAL_UI__Widget "> ;\n";
text += " ui:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " lv2:requiredFeature <" LV2_INSTANCE_ACCESS_URI "> ;\n";
text += " lv2:extensionData <" LV2_PROGRAMS__UIInterface "> .\n";
text += "\n";

text += "<" + pluginURI + "#ParentUI>\n";
#if JUCE_MAC
text += " a ui:CocoaUI ;\n";
#elif JUCE_LINUX
text += " a ui:X11UI ;\n";
#elif JUCE_WINDOWS
text += " a ui:WindowsUI ;\n";
#endif
text += " ui:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " lv2:requiredFeature <" LV2_INSTANCE_ACCESS_URI "> ;\n";
text += " lv2:optionalFeature ui:noUserResize ;\n";
text += " lv2:extensionData <" LV2_PROGRAMS__UIInterface "> .\n";
text += "\n";
}
#endif

#if JucePlugin_WantsLV2Presets
const String presetSeparator(pluginURI.contains("#") ? ":" : "#");

// Presets
for (int i = 0; i < filter->getNumPrograms(); ++i)
{
text += "<" + pluginURI + presetSeparator + "preset" + String::formatted("%03i", i+1) + ">\n";
text += " a pset:Preset ;\n";
text += " lv2:appliesTo <" + pluginURI + "> ;\n";
text += " rdfs:label \"" + filter->getProgramName(i) + "\" ;\n";
text += " rdfs:seeAlso <presets.ttl> .\n";
text += "\n";
}
#endif

return text;
}

/** Create the -plugin-.ttl file contents */
const String makePluginFile (AudioProcessor* const filter, const int maxNumInputChannels, const int maxNumOutputChannels)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix atom: <" LV2_ATOM_PREFIX "> .\n";
text += "@prefix doap: <http://usefulinc.com/ns/doap#> .\n";
text += "@prefix foaf: <http://xmlns.com/foaf/0.1/> .\n";
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix ui: <" LV2_UI_PREFIX "> .\n";
text += "\n";

// Plugin
text += "<" + pluginURI + ">\n";
text += " a " + getPluginType() + " ;\n";
text += " lv2:requiredFeature <" LV2_BUF_SIZE__boundedBlockLength "> ,\n";
#if JucePlugin_WantsLV2FixedBlockSize
text += " <" LV2_BUF_SIZE__fixedBlockLength "> ,\n";
#endif
text += " <" LV2_URID__map "> ;\n";
text += " lv2:extensionData <" LV2_OPTIONS__interface "> ,\n";
#if JucePlugin_WantsLV2State
text += " <" LV2_STATE__interface "> ,\n";
#endif
text += " <" LV2_PROGRAMS__Interface "> ;\n";
text += "\n";

#if ! JUCE_AUDIOPROCESSOR_NO_GUI
// UIs
if (filter->hasEditor())
{
text += " ui:ui <" + pluginURI + "#ExternalUI> ,\n";
text += " <" + pluginURI + "#ParentUI> ;\n";
text += "\n";
}
#endif

uint32 portIndex = 0;

#if (JucePlugin_WantsMidiInput || JucePlugin_WantsLV2TimePos)
// MIDI input
text += " lv2:port [\n";
text += " a lv2:InputPort, atom:AtomPort ;\n";
text += " atom:bufferType atom:Sequence ;\n";
#if JucePlugin_WantsMidiInput
text += " atom:supports <" LV2_MIDI__MidiEvent "> ;\n";
#endif
#if JucePlugin_WantsLV2TimePos
text += " atom:supports <" LV2_TIME__Position "> ;\n";
#endif
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_events_in\" ;\n";
text += " lv2:name \"Events Input\" ;\n";
text += " lv2:designation lv2:control ;\n";
#if ! JucePlugin_IsSynth
text += " lv2:portProperty lv2:connectionOptional ;\n";
#endif
text += " ] ;\n";
text += "\n";
#endif

#if JucePlugin_ProducesMidiOutput
// MIDI output
text += " lv2:port [\n";
text += " a lv2:OutputPort, atom:AtomPort ;\n";
text += " atom:bufferType atom:Sequence ;\n";
text += " atom:supports <" LV2_MIDI__MidiEvent "> ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_midi_out\" ;\n";
text += " lv2:name \"MIDI Output\" ;\n";
text += " ] ;\n";
text += "\n";
#endif

// Freewheel port
text += " lv2:port [\n";
text += " a lv2:InputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_freewheel\" ;\n";
text += " lv2:name \"Freewheel\" ;\n";
text += " lv2:default 0.0 ;\n";
text += " lv2:minimum 0.0 ;\n";
text += " lv2:maximum 1.0 ;\n";
text += " lv2:designation <" LV2_CORE__freeWheeling "> ;\n";
text += " lv2:portProperty lv2:toggled, <" LV2_PORT_PROPS__notOnGUI "> ;\n";
text += " ] ;\n";
text += "\n";

#if JucePlugin_WantsLV2Latency
// Latency port
text += " lv2:port [\n";
text += " a lv2:OutputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_latency\" ;\n";
text += " lv2:name \"Latency\" ;\n";
text += " lv2:designation <" LV2_CORE__latency "> ;\n";
text += " lv2:portProperty lv2:reportsLatency, lv2:integer ;\n";
text += " ] ;\n";
text += "\n";
#endif

// Audio inputs
for (int i=0; i < maxNumInputChannels; ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:InputPort, lv2:AudioPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_audio_in_" + String(i+1) + "\" ;\n";
text += " lv2:name \"Audio Input " + String(i+1) + "\" ;\n";

if (i+1 == maxNumInputChannels)
text += " ] ;\n\n";
else
text += " ] ,\n";
}

// Audio outputs
for (int i=0; i < maxNumOutputChannels; ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:OutputPort, lv2:AudioPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_audio_out_" + String(i+1) + "\" ;\n";
text += " lv2:name \"Audio Output " + String(i+1) + "\" ;\n";

if (i+1 == maxNumOutputChannels)
text += " ] ;\n\n";
else
text += " ] ,\n";
}

// Parameters
for (int i=0; i < filter->getNumParameters(); ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:InputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"" + nameToSymbol(filter->getParameterName(i), i) + "\" ;\n";

if (filter->getParameterName(i).isNotEmpty())
text += " lv2:name \"" + filter->getParameterName(i) + "\" ;\n";
else
text += " lv2:name \"Port " + String(i+1) + "\" ;\n";

text += " lv2:default " + String::formatted("%f", safeParamValue(filter->getParameter(i))) + " ;\n";
text += " lv2:minimum 0.0 ;\n";
text += " lv2:maximum 1.0 ;\n";

if (! filter->isParameterAutomatable(i))
text += " lv2:portProperty <" LV2_PORT_PROPS__expensive "> ;\n";

if (i+1 == filter->getNumParameters())
text += " ] ;\n\n";
else
text += " ] ,\n";
}

text += " doap:name \"" + filter->getName() + "\" ;\n";
text += " doap:maintainer [ foaf:name \"" JucePlugin_Manufacturer "\" ] .\n";

return text;
}

/** Create the presets.ttl file contents */
const String makePresetsFile (AudioProcessor* const filter)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix atom: <" LV2_ATOM_PREFIX "> .\n";
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix pset: <" LV2_PRESETS_PREFIX "> .\n";
text += "@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix state: <" LV2_STATE_PREFIX "> .\n";
text += "@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .\n";
text += "\n";

// Presets
const int numPrograms = filter->getNumPrograms();
const String presetSeparator(pluginURI.contains("#") ? ":" : "#");

for (int i = 0; i < numPrograms; ++i)
{
std::cout << "\nSaving preset " << i+1 << "/" << numPrograms+1 << "...";
std::cout.flush();

String preset;

// Label
filter->setCurrentProgram(i);
preset += "<" + pluginURI + presetSeparator + "preset" + String::formatted("%03i", i+1) + "> a pset:Preset ;\n";

// State
#if JucePlugin_WantsLV2State
preset += " state:state [\n";
#if JucePlugin_WantsLV2StateString
preset += " <" JUCE_LV2_STATE_STRING_URI ">\n";
preset += "\"\"\"\n";
preset += filter->getStateInformationString().replace("\r\n","\n");
preset += "\"\"\"\n";
#else
MemoryBlock chunkMemory;
filter->getCurrentProgramStateInformation(chunkMemory);
const String chunkString(Base64::toBase64(chunkMemory.getData(), chunkMemory.getSize()));

preset += " <" JUCE_LV2_STATE_BINARY_URI "> [\n";
preset += " a atom:Chunk ;\n";
preset += " rdf:value \"" + chunkString + "\"^^xsd:base64Binary ;\n";
preset += " ] ;\n";
#endif
if (filter->getNumParameters() == 0)
{
preset += " ] .\n\n";
continue;
}

preset += " ] ;\n\n";
#endif

// Port values
usedSymbols.clear();

for (int j=0; j < filter->getNumParameters(); ++j)
{
if (j == 0)
preset += " lv2:port [\n";
else
preset += " [\n";

preset += " lv2:symbol \"" + nameToSymbol(filter->getParameterName(j), j) + "\" ;\n";
preset += " pset:value " + String::formatted("%f", safeParamValue(filter->getParameter(j))) + " ;\n";

if (j+1 == filter->getNumParameters())
preset += " ] ";
else
preset += " ] ,\n";
}
preset += ".\n\n";

text += preset;
}

return text;
}

/** Creates manifest.ttl, plugin.ttl and presets.ttl files */
void createLv2Files(const char* basename)
{
const ScopedJuceInitialiser_GUI juceInitialiser;
ScopedPointer<AudioProcessor> filter(createPluginFilterOfType (AudioProcessor::wrapperType_LV2));

int maxNumInputChannels, maxNumOutputChannels;
findMaxTotalChannels(filter, maxNumInputChannels, maxNumOutputChannels);

String binary(basename);
String binaryTTL(binary + ".ttl");

std::cout << "Writing manifest.ttl..."; std::cout.flush();
std::fstream manifest("manifest.ttl", std::ios::out);
manifest << makeManifestFile(filter, binary) << std::endl;
manifest.close();
std::cout << " done!" << std::endl;

std::cout << "Writing " << binary << ".ttl..."; std::cout.flush();
std::fstream plugin(binaryTTL.toUTF8(), std::ios::out);
plugin << makePluginFile(filter, maxNumInputChannels, maxNumOutputChannels) << std::endl;
plugin.close();
std::cout << " done!" << std::endl;

#if JucePlugin_WantsLV2Presets
std::cout << "Writing presets.ttl..."; std::cout.flush();
std::fstream presets("presets.ttl", std::ios::out);
presets << makePresetsFile(filter) << std::endl;
presets.close();
std::cout << " done!" << std::endl;
#endif
}

//==============================================================================
#if JUCE_LINUX

@@ -2185,12 +1745,6 @@ static const struct DescriptorCleanup {
//==============================================================================
// startup code..

JUCE_EXPORTED_FUNCTION void lv2_generate_ttl (const char* basename);
JUCE_EXPORTED_FUNCTION void lv2_generate_ttl (const char* basename)
{
createLv2Files (basename);
}

JUCE_EXPORTED_FUNCTION const LV2_Descriptor* lv2_descriptor (uint32 index);
JUCE_EXPORTED_FUNCTION const LV2_Descriptor* lv2_descriptor (uint32 index)
{
@@ -2213,4 +1767,8 @@ JUCE_EXPORTED_FUNCTION const LV2UI_Descriptor* lv2ui_descriptor (uint32 index)
}
#endif

#ifndef JUCE_LV2_WRAPPER_WITHOUT_EXPORTER
#include "juce_LV2_Wrapper_Exporter.cpp"
#endif

#endif

+ 460
- 0
libs/juce/source/modules/juce_audio_plugin_client/LV2/juce_LV2_Wrapper_Exporter.cpp View File

@@ -0,0 +1,460 @@
/*
==============================================================================

Juce LV2 Wrapper (TTL Exporter)

==============================================================================
*/

// NOTE: This file is only meant to be used when included byce juce_LV2_Wrapper.cpp!

#if JUCE_MAC
#define PLUGIN_EXT ".dylib"
#elif JUCE_LINUX
#define PLUGIN_EXT ".so"
#elif JUCE_WINDOWS
#define PLUGIN_EXT ".dll"
#endif

/** Returns plugin type, defined in AppConfig.h or JucePluginCharacteristics.h */
static const String getPluginType()
{
String pluginType;
#ifdef JucePlugin_LV2Category
pluginType = "lv2:" JucePlugin_LV2Category;
pluginType += ", ";
#elif JucePlugin_IsSynth
pluginType = "lv2:InstrumentPlugin, ";
#endif
pluginType += "lv2:Plugin";
return pluginType;
}

static Array<String> usedSymbols;

/** Converts a parameter name to an LV2 compatible symbol. */
static const String nameToSymbol (const String& name, const uint32 portIndex)
{
String symbol, trimmedName = name.trimStart().trimEnd().toLowerCase();

if (trimmedName.isEmpty())
{
symbol += "lv2_port_";
symbol += String(portIndex+1);
}
else
{
for (int i=0; i < trimmedName.length(); ++i)
{
const juce_wchar c = trimmedName[i];
if (i == 0 && std::isdigit(c))
symbol += "_";
else if (std::isalpha(c) || std::isdigit(c))
symbol += c;
else
symbol += "_";
}
}

// Do not allow identical symbols
if (usedSymbols.contains(symbol))
{
int offset = 2;
String offsetStr = "_2";
symbol += offsetStr;

while (usedSymbols.contains(symbol))
{
offset += 1;
String newOffsetStr = "_" + String(offset);
symbol = symbol.replace(offsetStr, newOffsetStr);
offsetStr = newOffsetStr;
}
}
usedSymbols.add(symbol);

return symbol;
}

/** Prevents NaN or out of 0.0<->1.0 bounds parameter values. */
static float safeParamValue (float value)
{
if (std::isnan(value))
value = 0.0f;
else if (value < 0.0f)
value = 0.0f;
else if (value > 1.0f)
value = 1.0f;
return value;
}

/** Create the manifest.ttl file contents */
static const String makeManifestFile (AudioProcessor* const filter, const String& binary)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix pset: <" LV2_PRESETS_PREFIX "> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix ui: <" LV2_UI_PREFIX "> .\n";
text += "\n";

// Plugin
text += "<" + pluginURI + ">\n";
text += " a lv2:Plugin ;\n";
text += " lv2:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " rdfs:seeAlso <" + binary + ".ttl> .\n";
text += "\n";

#if ! JUCE_AUDIOPROCESSOR_NO_GUI
// UIs
if (filter->hasEditor())
{
text += "<" + pluginURI + "#ExternalUI>\n";
text += " a <" LV2_EXTERNAL_UI__Widget "> ;\n";
text += " ui:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " lv2:requiredFeature <" LV2_INSTANCE_ACCESS_URI "> ;\n";
text += " lv2:extensionData <" LV2_PROGRAMS__UIInterface "> .\n";
text += "\n";

text += "<" + pluginURI + "#ParentUI>\n";
#if JUCE_MAC
text += " a ui:CocoaUI ;\n";
#elif JUCE_LINUX
text += " a ui:X11UI ;\n";
#elif JUCE_WINDOWS
text += " a ui:WindowsUI ;\n";
#endif
text += " ui:binary <" + binary + PLUGIN_EXT "> ;\n";
text += " lv2:requiredFeature <" LV2_INSTANCE_ACCESS_URI "> ;\n";
text += " lv2:optionalFeature ui:noUserResize ;\n";
text += " lv2:extensionData <" LV2_PROGRAMS__UIInterface "> .\n";
text += "\n";
}
#endif

#if JucePlugin_WantsLV2Presets
const String presetSeparator(pluginURI.contains("#") ? ":" : "#");

// Presets
for (int i = 0; i < filter->getNumPrograms(); ++i)
{
text += "<" + pluginURI + presetSeparator + "preset" + String::formatted("%03i", i+1) + ">\n";
text += " a pset:Preset ;\n";
text += " lv2:appliesTo <" + pluginURI + "> ;\n";
text += " rdfs:label \"" + filter->getProgramName(i) + "\" ;\n";
text += " rdfs:seeAlso <presets.ttl> .\n";
text += "\n";
}
#endif

return text;
}

/** Create the -plugin-.ttl file contents */
static const String makePluginFile (AudioProcessor* const filter, const int maxNumInputChannels, const int maxNumOutputChannels)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix atom: <" LV2_ATOM_PREFIX "> .\n";
text += "@prefix doap: <http://usefulinc.com/ns/doap#> .\n";
text += "@prefix foaf: <http://xmlns.com/foaf/0.1/> .\n";
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix ui: <" LV2_UI_PREFIX "> .\n";
text += "\n";

// Plugin
text += "<" + pluginURI + ">\n";
text += " a " + getPluginType() + " ;\n";
text += " lv2:requiredFeature <" LV2_BUF_SIZE__boundedBlockLength "> ,\n";
#if JucePlugin_WantsLV2FixedBlockSize
text += " <" LV2_BUF_SIZE__fixedBlockLength "> ,\n";
#endif
text += " <" LV2_URID__map "> ;\n";
text += " lv2:extensionData <" LV2_OPTIONS__interface "> ,\n";
#if JucePlugin_WantsLV2State
text += " <" LV2_STATE__interface "> ,\n";
#endif
text += " <" LV2_PROGRAMS__Interface "> ;\n";
text += "\n";

#if ! JUCE_AUDIOPROCESSOR_NO_GUI
// UIs
if (filter->hasEditor())
{
text += " ui:ui <" + pluginURI + "#ExternalUI> ,\n";
text += " <" + pluginURI + "#ParentUI> ;\n";
text += "\n";
}
#endif

uint32 portIndex = 0;

#if (JucePlugin_WantsMidiInput || JucePlugin_WantsLV2TimePos)
// MIDI input
text += " lv2:port [\n";
text += " a lv2:InputPort, atom:AtomPort ;\n";
text += " atom:bufferType atom:Sequence ;\n";
#if JucePlugin_WantsMidiInput
text += " atom:supports <" LV2_MIDI__MidiEvent "> ;\n";
#endif
#if JucePlugin_WantsLV2TimePos
text += " atom:supports <" LV2_TIME__Position "> ;\n";
#endif
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_events_in\" ;\n";
text += " lv2:name \"Events Input\" ;\n";
text += " lv2:designation lv2:control ;\n";
#if ! JucePlugin_IsSynth
text += " lv2:portProperty lv2:connectionOptional ;\n";
#endif
text += " ] ;\n";
text += "\n";
#endif

#if JucePlugin_ProducesMidiOutput
// MIDI output
text += " lv2:port [\n";
text += " a lv2:OutputPort, atom:AtomPort ;\n";
text += " atom:bufferType atom:Sequence ;\n";
text += " atom:supports <" LV2_MIDI__MidiEvent "> ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_midi_out\" ;\n";
text += " lv2:name \"MIDI Output\" ;\n";
text += " ] ;\n";
text += "\n";
#endif

// Freewheel port
text += " lv2:port [\n";
text += " a lv2:InputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_freewheel\" ;\n";
text += " lv2:name \"Freewheel\" ;\n";
text += " lv2:default 0.0 ;\n";
text += " lv2:minimum 0.0 ;\n";
text += " lv2:maximum 1.0 ;\n";
text += " lv2:designation <" LV2_CORE__freeWheeling "> ;\n";
text += " lv2:portProperty lv2:toggled, <" LV2_PORT_PROPS__notOnGUI "> ;\n";
text += " ] ;\n";
text += "\n";

#if JucePlugin_WantsLV2Latency
// Latency port
text += " lv2:port [\n";
text += " a lv2:OutputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_latency\" ;\n";
text += " lv2:name \"Latency\" ;\n";
text += " lv2:designation <" LV2_CORE__latency "> ;\n";
text += " lv2:portProperty lv2:reportsLatency, lv2:integer ;\n";
text += " ] ;\n";
text += "\n";
#endif

// Audio inputs
for (int i=0; i < maxNumInputChannels; ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:InputPort, lv2:AudioPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_audio_in_" + String(i+1) + "\" ;\n";
text += " lv2:name \"Audio Input " + String(i+1) + "\" ;\n";

if (i+1 == maxNumInputChannels)
text += " ] ;\n\n";
else
text += " ] ,\n";
}

// Audio outputs
for (int i=0; i < maxNumOutputChannels; ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:OutputPort, lv2:AudioPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"lv2_audio_out_" + String(i+1) + "\" ;\n";
text += " lv2:name \"Audio Output " + String(i+1) + "\" ;\n";

if (i+1 == maxNumOutputChannels)
text += " ] ;\n\n";
else
text += " ] ,\n";
}

// Parameters
for (int i=0; i < filter->getNumParameters(); ++i)
{
if (i == 0)
text += " lv2:port [\n";
else
text += " [\n";

text += " a lv2:InputPort, lv2:ControlPort ;\n";
text += " lv2:index " + String(portIndex++) + " ;\n";
text += " lv2:symbol \"" + nameToSymbol(filter->getParameterName(i), i) + "\" ;\n";

if (filter->getParameterName(i).isNotEmpty())
text += " lv2:name \"" + filter->getParameterName(i) + "\" ;\n";
else
text += " lv2:name \"Port " + String(i+1) + "\" ;\n";

text += " lv2:default " + String::formatted("%f", safeParamValue(filter->getParameter(i))) + " ;\n";
text += " lv2:minimum 0.0 ;\n";
text += " lv2:maximum 1.0 ;\n";

if (! filter->isParameterAutomatable(i))
text += " lv2:portProperty <" LV2_PORT_PROPS__expensive "> ;\n";

if (i+1 == filter->getNumParameters())
text += " ] ;\n\n";
else
text += " ] ,\n";
}

text += " doap:name \"" + filter->getName() + "\" ;\n";
text += " doap:maintainer [ foaf:name \"" JucePlugin_Manufacturer "\" ] .\n";

return text;
}

#if JucePlugin_WantsLV2Presets
/** Create the presets.ttl file contents */
static const String makePresetsFile (AudioProcessor* const filter)
{
const String& pluginURI(getPluginURI());
String text;

// Header
text += "@prefix atom: <" LV2_ATOM_PREFIX "> .\n";
text += "@prefix lv2: <" LV2_CORE_PREFIX "> .\n";
text += "@prefix pset: <" LV2_PRESETS_PREFIX "> .\n";
text += "@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .\n";
text += "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .\n";
text += "@prefix state: <" LV2_STATE_PREFIX "> .\n";
text += "@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .\n";
text += "\n";

// Presets
const int numPrograms = filter->getNumPrograms();
const String presetSeparator(pluginURI.contains("#") ? ":" : "#");

for (int i = 0; i < numPrograms; ++i)
{
std::cout << "\nSaving preset " << i+1 << "/" << numPrograms+1 << "...";
std::cout.flush();

String preset;

// Label
filter->setCurrentProgram(i);
preset += "<" + pluginURI + presetSeparator + "preset" + String::formatted("%03i", i+1) + "> a pset:Preset ;\n";

// State
#if JucePlugin_WantsLV2State
preset += " state:state [\n";
#if JucePlugin_WantsLV2StateString
preset += " <" JUCE_LV2_STATE_STRING_URI ">\n";
preset += "\"\"\"\n";
preset += filter->getStateInformationString().replace("\r\n","\n");
preset += "\"\"\"\n";
#else
MemoryBlock chunkMemory;
filter->getCurrentProgramStateInformation(chunkMemory);
const String chunkString(Base64::toBase64(chunkMemory.getData(), chunkMemory.getSize()));

preset += " <" JUCE_LV2_STATE_BINARY_URI "> [\n";
preset += " a atom:Chunk ;\n";
preset += " rdf:value \"" + chunkString + "\"^^xsd:base64Binary ;\n";
preset += " ] ;\n";
#endif
if (filter->getNumParameters() == 0)
{
preset += " ] .\n\n";
continue;
}

preset += " ] ;\n\n";
#endif

// Port values
usedSymbols.clear();

for (int j=0; j < filter->getNumParameters(); ++j)
{
if (j == 0)
preset += " lv2:port [\n";
else
preset += " [\n";

preset += " lv2:symbol \"" + nameToSymbol(filter->getParameterName(j), j) + "\" ;\n";
preset += " pset:value " + String::formatted("%f", safeParamValue(filter->getParameter(j))) + " ;\n";

if (j+1 == filter->getNumParameters())
preset += " ] ";
else
preset += " ] ,\n";
}
preset += ".\n\n";

text += preset;
}

return text;
}
#endif

/** Creates manifest.ttl, plugin.ttl and presets.ttl files */
static void createLv2Files(const char* basename)
{
const ScopedJuceInitialiser_GUI juceInitialiser;
ScopedPointer<AudioProcessor> filter(createPluginFilterOfType (AudioProcessor::wrapperType_LV2));

int maxNumInputChannels, maxNumOutputChannels;
findMaxTotalChannels(filter, maxNumInputChannels, maxNumOutputChannels);

String binary(basename);
String binaryTTL(binary + ".ttl");

std::cout << "Writing manifest.ttl..."; std::cout.flush();
std::fstream manifest("manifest.ttl", std::ios::out);
manifest << makeManifestFile(filter, binary) << std::endl;
manifest.close();
std::cout << " done!" << std::endl;

std::cout << "Writing " << binary << ".ttl..."; std::cout.flush();
std::fstream plugin(binaryTTL.toUTF8(), std::ios::out);
plugin << makePluginFile(filter, maxNumInputChannels, maxNumOutputChannels) << std::endl;
plugin.close();
std::cout << " done!" << std::endl;

#if JucePlugin_WantsLV2Presets
std::cout << "Writing presets.ttl..."; std::cout.flush();
std::fstream presets("presets.ttl", std::ios::out);
presets << makePresetsFile(filter) << std::endl;
presets.close();
std::cout << " done!" << std::endl;
#endif
}

//==============================================================================
// startup code..

JUCE_EXPORTED_FUNCTION void lv2_generate_ttl (const char* basename);
JUCE_EXPORTED_FUNCTION void lv2_generate_ttl (const char* basename)
{
createLv2Files (basename);
}

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