This software package contains libraries and programs that should make it easier to write LV2 plugins and GUIs. Download it: http://ll-plugins.nongnu.org/hacking.html Read documentation: http://ll-plugins.nongnu.org/dox/lv2-c++-tools/ Or read a nice tutorial: http://ll-plugins.nongnu.org/lv2pftci/ To build and install, run ./configure make su -c 'make install' You can pass some options to configure, e.g. --prefix=/usr to install everything in /usr (the default is /usr/local). This is a development tool, but I'm sending it to the LAU list as well in case there are any not-yet-hackers who would like to start writing effects or synths. It's easy, I promise. Here's the code you would need to write for a simple gain effect: #include <lv2plugin.hpp> #include "gain.peg" class Gain : public LV2::Plugin<Gain> { public: Gain(double rate) : LV2::Plugin<Gain>(p_n_ports) { } void run(uint32_t nframes) { for (uint32_t i = 0; i < nframes; ++i) p(p_out)[i] = p(p_gain) * p(p_in); } }; static int _ = Gain::register_class("http://my.plugin/";); And here's the code you would need for a GUI for a synth plugin with a button that sends a test tone: #include <lv2gui.hpp> #include "mysynth.peg" class MySynthGUI : public LV2::GUI<MySynthGUI, LV2::WriteMIDI<true> > { public: MySynthGUI(const std::string& URI) : m_button("Click me!") { m_button.signal_pressed().connect(mem_fun(*this, &MySynthGUI::send_note_on)); m_button.signal_released().connect(mem_fun(*this, &MySynthGUI::send_note_off)); pack_start(m_button); } protected: void send_note_on() { uint8_t event[] = { 0x90, 0x40, 0x40 }; write_midi(p_midi, 3, event); } void send_note_off() { uint8_t event[] = { 0x80, 0x40, 0x40 }; write_midi(p_midi, 3, event); } Gtk::Button m_button; }; static int _ = MySynthGUI::register_class("http://my.gui/";); See? Trivial. Read more in the tutorial linked above. --ll
Attachment:
signature.asc
Description: This is a digitally signed message part
_______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
