1 files changed, 251 insertions, 0 deletions
diff --git a/lvz/gendata.cpp b/lvz/gendata.cpp
new file mode 100644
index 0000000..2bddf9d
--- /dev/null
+++ b/lvz/gendata.cpp
@@ -0,0 +1,251 @@
+/*
+  LVZ - An ugly C++ interface for writing LV2 plugins.
+  Copyright 2008-2012 David Robillard <http://drobilla.net>
+
+  This 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 3 of the License,
+  or (at your option) any later version.
+
+  This software 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 software. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <cassert>
+#include <fstream>
+#include <iostream>
+#include <list>
+#include <map>
+#include <string>
+
+#include <dlfcn.h>
+
+#include "audioeffectx.h"
+
+using namespace std;
+
+// VST is so incredibly awful.  Just.. wow.
+#define MAX_NAME_LENGTH 1024
+char name_buf[MAX_NAME_LENGTH];
+
+struct Record {
+	Record(const string& n) : base_name(n) {}
+	string base_name;
+	typedef list<string> UIs;
+	UIs uis;
+};
+
+typedef std::map<string, Record> Manifest;
+Manifest manifest;
+
+string
+symbolify(const char* name, char space_char='_')
+{
+	string str(name);
+
+	// Like This -> Like_This
+	for (size_t i=0; i < str.length(); ++i)
+		if (str[i] == ' ')
+			str[i] = space_char;
+
+	str[0] = std::tolower(str[0]);
+
+	// LikeThis -> like_this
+	for (size_t i=1; i < str.length(); ++i)
+		if (str[i] >= 'A' && str[i] <= 'Z'
+				&& str[i-1] >= 'a' && str[i-1] <= 'z'
+				&& ((i == str.length() - 1) || (str[i+1] <= 'a' && str[i+1] >= 'Z'))
+				&& (!(str[i-1] == 'd' && str[i] == 'B'))
+				&& (!(str[i-1] == 'F' && str[i] == 'X'))
+				&& (!(str[i-1] == 'D' && str[i] == 'C')))
+			str = str.substr(0, i) + space_char + str.substr(i);
+
+	// To lowercase, and skip invalids
+	for (size_t i=1; i < str.length(); ) {
+		if (std::isalpha(str[i]) || std::isdigit(str[i])) {
+			str[i] = std::tolower(str[i]);
+			++i;
+		} else if (str[i-1] != space_char) {
+			str[i] = space_char;
+			++i;
+		} else {
+			str = str.substr(0, i) + str.substr(i+1);
+		}
+	}
+
+	return str;
+}
+
+void
+write_plugin(AudioEffectX* effect, const string& lib_file_name)
+{
+	const string base_name = lib_file_name.substr(0, lib_file_name.find_last_of("."));
+	const string data_file_name = base_name + ".ttl";
+
+	fstream os(data_file_name.c_str(), ios::out);
+	effect->getProductString(name_buf);
+
+	os << "@prefix lv2: <http://lv2plug.in/ns/lv2core#> ." << endl;
+	os << "@prefix doap: <http://usefulinc.com/ns/doap#> ." << endl << endl;
+	os << "<" << effect->getURI() << ">" << endl;
+	os << "\tlv2:symbol \"" << effect->getUniqueID() << "\" ;" << endl;
+	os << "\tdoap:name \"" << name_buf << "\" ;" << endl;
+	os << "\tdoap:license <http://usefulinc.com/doap/licenses/gpl> ;" << endl;
+	os << "\tlv2:pluginProperty lv2:hardRTCapable";
+
+	uint32_t num_params     = effect->getNumParameters();
+	uint32_t num_audio_ins  = effect->getNumInputs();
+	uint32_t num_audio_outs = effect->getNumOutputs();
+	uint32_t num_ports      = num_params + num_audio_ins + num_audio_outs;
+
+	if (num_ports > 0)
+		os << " ;" << endl << "\tlv2:port [" << endl;
+	else
+		os << " ." << endl;
+
+	uint32_t idx = 0;
+
+	for (uint32_t i = idx; i < num_params; ++i, ++idx) {
+		effect->getParameterName(i, name_buf);
+		os << "\t\ta lv2:InputPort, lv2:ControlPort ;" << endl;
+		os << "\t\tlv2:index" << " " << idx << " ;" << endl;
+		os << "\t\tlv2:name \"" << name_buf << "\" ;" << endl;
+		os << "\t\tlv2:symbol \"" << symbolify(name_buf) << "\" ;" << endl;
+		os << "\t\tlv2:default " << effect->getParameter(i) << " ;" << endl;
+		os << "\t\tlv2:minimum 0.0 ;" << endl;
+		os << "\t\tlv2:maximum 1.0 ;" << endl;
+		os << ((idx == num_ports - 1) ? "\t] ." : "\t] , [") << endl;
+	}
+
+	for (uint32_t i = 0; i < num_audio_ins; ++i, ++idx) {
+		os << "\t\ta lv2:InputPort, lv2:AudioPort ;" << endl;
+		os << "\t\tlv2:index" << " " << idx << " ;" << endl;
+		os << "\t\tlv2:symbol \"in" << i+1 << "\" ;" << endl;
+		os << "\t\tlv2:name \"Input " << i+1 << "\" ;" << endl;
+		os << ((idx == num_ports - 1) ? "\t] ." : "\t] , [") << endl;
+	}
+
+	for (uint32_t i = 0; i < num_audio_outs; ++i, ++idx) {
+		os << "\t\ta lv2:OutputPort, lv2:AudioPort ;" << endl;
+		os << "\t\tlv2:index " << idx << " ;" << endl;
+		os << "\t\tlv2:symbol \"out" << i+1 << "\" ;" << endl;
+		os << "\t\tlv2:name \"Output " << i+1 << "\" ;" << endl;
+		os << ((idx == num_ports - 1) ? "\t] ." : "\t] , [") << endl;
+	}
+
+	os.close();
+
+	Manifest::iterator i = manifest.find(effect->getURI());
+	if (i != manifest.end()) {
+		i->second.base_name = base_name;
+	} else {
+		manifest.insert(std::make_pair(effect->getURI(), Record(base_name)));
+	}
+
+	if (effect->getNumPrograms() > 1) {
+		std::string preset_file = base_name + "-presets.ttl";
+
+		fstream pos(preset_file.c_str(), ios::out);
+		pos << "@prefix lv2: <http://lv2plug.in/ns/lv2core#> ." << endl;
+		pos << "@prefix pset: <http://lv2plug.in/ns/ext/presets#> ." << endl;
+		pos << "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> ." << endl << endl;
+		for (int32_t i = 0; i < effect->getNumPrograms(); ++i) {
+			effect->setProgram(i);
+			effect->getProgramName(name_buf);
+
+			std::string preset_uri = string(effect->getURI())
+				+ "#pset-" + symbolify(name_buf, '-');
+
+			// Write manifest entry
+			std::cout << "<" << preset_uri << ">"
+			          << "\n\ta pset:Preset ;\n\tlv2:appliesTo <"
+			          << effect->getURI() << "> ;\n\t"
+			          << "rdfs:seeAlso <" << preset_file << "> .\n" << std::endl;
+
+			// Write preset file
+			pos << "<" << preset_uri << ">"
+			    << "\n\ta pset:Preset ;\n\tlv2:appliesTo <"
+			    << effect->getURI() << "> ;\n\t"
+			    << "rdfs:label \"" << name_buf << "\"";
+			for (uint32_t i = 0; i < num_params; ++i) {
+				effect->getParameterName(i, name_buf);
+				pos << " ;\n\tlv2:port [" << endl;
+				pos << "\t\tlv2:symbol \"" << symbolify(name_buf) << "\" ;" << endl;
+				pos << "\t\tpset:value " << effect->getParameter(i) << " ;" << endl;
+				pos << "\t]";
+			}
+			pos << " .\n" << endl;
+		}
+		pos.close();
+	}
+}
+
+void
+write_manifest(ostream& os)
+{
+	os << "@prefix lv2: <http://lv2plug.in/ns/lv2core#> ." << endl;
+	os << "@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> ." << endl;
+	os << "@prefix uiext: <http://lv2plug.in/ns/extensions/ui#> ." << endl << endl;
+	for (Manifest::iterator i = manifest.begin(); i != manifest.end(); ++i) {
+		Record& r = i->second;
+		os << "<" << i->first << ">\n\ta lv2:Plugin ;" << endl;
+		os << "\trdfs:seeAlso <" << r.base_name << ".ttl> ;" << endl;
+		os << "\tlv2:binary <" << r.base_name << ".so> ";
+		for (Record::UIs::iterator j = r.uis.begin(); j != r.uis.end(); ++j)
+			os << ";" << endl << "\tuiext:ui <" << *j << "> ";
+		os << "." << endl << endl;
+	}
+}
+
+int
+main(int argc, char** argv)
+{
+	if (argc == 0) {
+		cout << "Usage: gendata [PLUGINLIB1] [PLUGINLIB2]..." << endl;
+		cout << "Each argument is a path to a LVZ plugin library." << endl;
+		cout << "For each library an LV2 data file with the same name" << endl;
+		cout << "will be output containing the data for that plugin." << endl;
+		cout << "A manifest of the plugins found is written to stdout" << endl;
+		return 1;
+	}
+
+	typedef AudioEffectX* (*new_effect_func)();
+	typedef AudioEffectX* (*plugin_uri_func)();
+
+	new_effect_func constructor = NULL;
+	AudioEffectX*   effect      = NULL;
+
+	for (int i = 1; i < argc; ++i) {
+		void* handle = dlopen(argv[i], RTLD_LAZY);
+		if (handle == NULL) {
+			cerr << "ERROR: " << argv[i] << ": " << dlerror() << " (ignoring)" << endl;
+			continue;
+		}
+
+		string lib_path = argv[i];
+		size_t last_slash = lib_path.find_last_of("/");
+		if (last_slash != string::npos)
+			lib_path = lib_path.substr(last_slash + 1);
+
+		constructor = (new_effect_func)dlsym(handle, "lvz_new_audioeffectx");
+		if (constructor != NULL) {
+			effect = constructor();
+			write_plugin(effect, lib_path);
+		}
+
+		if (constructor == NULL) {
+			cerr << "ERROR: " << argv[i] << ": not an LVZ plugin library, ignoring" << endl;
+		}
+
+		dlclose(handle);
+	}
+
+	write_manifest(cout);
+
+	return 0;
+}