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#include <QCoreApplication>
#include <QStringList>
#include <QTextStream>
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
const auto &args = app.arguments();
if (args.count() != 3) {
QTextStream(stderr) << QStringLiteral("Usage: %1 TYPE-COUNT FACTORY-COUNT").arg(args.first()) << endl;
return EXIT_FAILURE;
}
bool isTypeCount = false;
const int typeCount = args.at(1).toInt(&isTypeCount);
if (not isTypeCount || typeCount < 1) {
QTextStream(stderr) << QStringLiteral("%1: Invalid type pad count").arg(args.first()) << endl;
return EXIT_FAILURE;
}
bool isFactoryCount = false;
const int factoryCount = args.at(2).toInt(&isFactoryCount);
if (not isFactoryCount || factoryCount < 1) {
QTextStream(stderr) << QStringLiteral("%1: Invalid factory pad count").arg(args.first()) << endl;
return EXIT_FAILURE;
}
QTextStream out(stdout);
out << "#include \"metapads.h\"" << endl
<< "#include \"object.h\"" << endl
<< "#include <gst/gst.h>" << endl
<< "#include <QVector>" << endl
<< endl
<< "namespace QQuickStreamer {" << endl
<< "namespace Private {" << endl
<< endl
<< "static QVector<GType> objectTypes;" << endl
<< "static QVector<GstElementFactory *> elementFactories;" << endl
<< endl
<< "static void *createObject(int which, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " const auto type = objectTypes.at(which);" << endl
<< " return new Object(GST_OBJECT(g_object_newv(type, 0, Q_NULLPTR)));" << endl
<< "}" << endl
<< endl
<< "static void *constructObject(int which, void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new(where) Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " const auto type = objectTypes.at(which);" << endl
<< " return new(where) Object(GST_OBJECT(g_object_newv(type, 0, Q_NULLPTR)));" << endl
<< "}" << endl
<< endl;
for (int i = 0; i < typeCount; ++i) {
out << "static void *createObject" << i << "(const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " return createObject(" << i << ", t);" << endl
<< "}" << endl
<< endl
<< "static void createObjectInto" << i << "(void *where) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " constructObject(" << i << ", where, Q_NULLPTR);" << endl
<< "}" << endl
<< endl
<< "static void *constructObject" << i << "(void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " return constructObject(" << i << ", where, t);" << endl
<< "}" << endl
<< endl;
}
/*
for (int i = 0; i < typeCount; ++i) {
out << "static void *createObject" << i << "(const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " const auto type = objectTypes.at(" << i << ");" << endl
<< " return new Object(GST_OBJECT(g_object_newv(type, 0, Q_NULLPTR)));" << endl
<< "}" << endl
<< endl
<< "static void *constructObject" << i << "(void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new(where) Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " const auto type = objectTypes.at(" << i << ");" << endl
<< " return new(where) Object(GST_OBJECT(g_object_newv(type, 0, Q_NULLPTR)));" << endl
<< "}" << endl
<< endl;
}
*/
out << "static MetaTypePads objectTypePads[] = {" << endl;
for (int i = 0; i < typeCount; ++i)
out << " { &createObject" << i << ", &constructObject" << i << ", &createObjectInto" << i << " }," << endl;
out << " { Q_NULLPTR, Q_NULLPTR, Q_NULLPTR }" << endl
<< "};" << endl
<< endl;
out << "const MetaTypePads &MetaTypePads::forObjectType(GType type) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " const auto &pads = objectTypePads[objectTypes.size()];" << endl
<< endl
<< " if (pads.create && pads.construct) {" << endl
<< " objectTypes.append(type);" << endl
<< " } else {" << endl
<< " qWarning(\"No other object type pad available.\");" << endl
<< " }" << endl
<< endl
<< " return pads;" << endl
<< "}" << endl
<< endl;
out << "static void *createElement(int which, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " auto *const factory = elementFactories.at(which);" << endl
<< " auto *const element = gst_element_factory_create(factory, Q_NULLPTR);" << endl
<< " return new Object(GST_OBJECT(element));" << endl
<< "}" << endl
<< endl
<< "static void *constructElement(int which, void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new(where) Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " auto *const factory = elementFactories.at(which);" << endl
<< " auto *const element = gst_element_factory_create(factory, Q_NULLPTR);" << endl
<< " return new(where) Object(GST_OBJECT(element));" << endl
<< "}" << endl
<< endl;
for (int i = 0; i < factoryCount; ++i) {
out << "static void *createElement" << i << "(const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " return createElement(" << i << ", t);" << endl
<< "}" << endl
<< endl
<< "static void createElementInto" << i << "(void *where) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " constructElement(" << i << ", where, Q_NULLPTR);" << endl
<< "}" << endl
<< endl
<< "static void *constructElement" << i << "(void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " return constructElement(" << i << ", where, t);" << endl
<< "}" << endl
<< endl;
}
/*
for (int i = 0; i < factoryCount; ++i) {
out << "static void *createElement" << i << "(const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " auto *const factory = elementFactories.at(" << i << ");" << endl
<< " auto *const element = gst_element_factory_create(factory, Q_NULLPTR);" << endl
<< " return new Object(GST_OBJECT(element));" << endl
<< "}" << endl
<< endl
<< "static void *constructElement" << i << "(void *where, const void *t) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " if (t)" << endl
<< " return new(where) Object(*static_cast<const Object*>(t));" << endl
<< endl
<< " auto *const factory = elementFactories.at(" << i << ");" << endl
<< " auto *const element = gst_element_factory_create(factory, Q_NULLPTR);" << endl
<< " return new(where) Object(GST_OBJECT(element));" << endl
<< "}" << endl
<< endl;
}
*/
out << "static MetaTypePads elementFactoryPads[] = {" << endl;
for (int i = 0; i < factoryCount; ++i)
out << " { &createElement" << i << ", &constructElement" << i << ", &createElementInto" << i << " }," << endl;
out << " { Q_NULLPTR, Q_NULLPTR, Q_NULLPTR }" << endl
<< "};" << endl
<< endl;
out << "const MetaTypePads &MetaTypePads::forElementFactory(GstElementFactory *factory) Q_DECL_NOEXCEPT" << endl
<< "{" << endl
<< " const auto &pads = elementFactoryPads[elementFactories.size()];" << endl
<< endl
<< " if (pads.create && pads.construct) {" << endl
<< " elementFactories.append(GST_ELEMENT_FACTORY(g_object_ref(factory)));" << endl
<< " } else {" << endl
<< " qWarning(\"No other element factory pad available.\");" << endl
<< " }" << endl
<< endl
<< " return pads;" << endl
<< "}" << endl
<< endl;
out << "} // namespace Private" << endl
<< "} // namespace QQuickStreamer" << endl;
return EXIT_SUCCESS;
}
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