LV2 external UI patch from nedko (#2777)

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@5697 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2009-10-01 15:43:52 +00:00
parent 68240a9152
commit 72bfc14a35
7 changed files with 240 additions and 21 deletions

View file

@ -28,6 +28,22 @@ using namespace Gtk;
using namespace ARDOUR;
using namespace PBD;
std::vector<struct lv2_external_ui*> g_external_uis;
void close_external_ui_windows()
{
struct lv2_external_ui* external_ui_ptr;
//cout << "close_external_ui_windows" << endl;
while (!g_external_uis.empty()) {
//cout << "pop" << endl;
external_ui_ptr = g_external_uis.back();
LV2_EXTERNAL_UI_HIDE(external_ui_ptr);
g_external_uis.pop_back();
}
}
void
LV2PluginUI::lv2_ui_write(LV2UI_Controller controller,
uint32_t port_index,
@ -35,14 +51,36 @@ LV2PluginUI::lv2_ui_write(LV2UI_Controller controller,
uint32_t format,
const void* buffer)
{
//cout << "lv2_ui_write" << endl;
LV2PluginUI* me = (LV2PluginUI*)controller;
if (*(float*)buffer != me->_values[port_index])
if (*(float*)buffer != me->_values[port_index]) {
//cout << "set_parameter " << port_index << ":" << *(float*)buffer << endl;
me->_lv2->set_parameter(port_index, *(float*)buffer);
}
}
void LV2PluginUI::on_external_ui_closed(LV2UI_Controller controller)
{
//cout << "on_external_ui_closed" << endl;
LV2PluginUI* me = (LV2PluginUI*)controller;
me->_screen_update_connection.disconnect();
//me->insert->set_gui(0);
for (vector<struct lv2_external_ui*>::iterator it = g_external_uis.begin() ; it < g_external_uis.end(); it++) {
if (*it == me->_external_ui_ptr) {
g_external_uis.erase(it);
}
}
//slv2_ui_instance_get_descriptor(me->_inst)->cleanup(me->_inst);
me->_external_ui_ptr = NULL;
}
void
LV2PluginUI::parameter_changed (uint32_t port_index, float val)
{
//cout << "parameter_changed" << endl;
if (val != _values[port_index]) {
parameter_update(port_index, val);
}
@ -51,16 +89,24 @@ LV2PluginUI::parameter_changed (uint32_t port_index, float val)
void
LV2PluginUI::parameter_update (uint32_t port_index, float val)
{
if (!_inst) {
return;
}
const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
if (ui_desc->port_event)
if (ui_desc->port_event) {
//cout << "port_event " << port_index << ":" << val << endl;
ui_desc->port_event(ui_handle, port_index, 4, 0, &val);
}
_values[port_index] = val;
}
bool
LV2PluginUI::start_updating(GdkEventAny* event)
{
//cout << "start_updating" << endl;
if (!_output_ports.empty()) {
_screen_update_connection.disconnect();
_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
@ -72,7 +118,10 @@ LV2PluginUI::start_updating(GdkEventAny* event)
bool
LV2PluginUI::stop_updating(GdkEventAny* event)
{
if (!_output_ports.empty()) {
//cout << "stop_updating" << endl;
if (//!_external_ui_ptr &&
!_output_ports.empty()) {
_screen_update_connection.disconnect();
}
return false;
@ -81,6 +130,11 @@ LV2PluginUI::stop_updating(GdkEventAny* event)
void
LV2PluginUI::output_update()
{
//cout << "output_update" << endl;
if (_external_ui_ptr) {
LV2_EXTERNAL_UI_RUN(_external_ui_ptr);
}
/* FIXME only works with control output ports (which is all we support now anyway) */
uint32_t nports = _output_ports.size();
for (uint32_t i = 0; i < nports; ++i) {
@ -93,30 +147,84 @@ LV2PluginUI::output_update()
LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
: PlugUIBase (pi)
, _lv2(lv2p)
, _inst(NULL)
, _values(NULL)
, _external_ui_ptr(NULL)
{
if (!_lv2->is_external_ui()) {
lv2ui_instantiate("gtk2gui");
}
}
void
LV2PluginUI::lv2ui_instantiate(const Glib::ustring& title)
{
LV2_Feature** features;
LV2_Feature** features_src;
LV2_Feature** features_dst;
size_t features_count;
bool is_external_ui;
is_external_ui = _lv2->is_external_ui();
if (is_external_ui) {
_external_ui_host.ui_closed = LV2PluginUI::on_external_ui_closed;
_external_ui_host.plugin_human_id = strdup(title.c_str());
_external_ui_feature.URI = LV2_EXTERNAL_UI_URI;
_external_ui_feature.data = &_external_ui_host;
features_src = features = (LV2_Feature**)_lv2->features();
features_count = 2;
while (*features++) {
features_count++;
}
features_dst = features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * features_count);
features_dst[--features_count] = NULL;
features_dst[--features_count] = &_external_ui_feature;
while (features_count--) {
*features++ = *features_src++;
}
} else {
features_dst = (LV2_Feature**)_lv2->features();
}
_inst = slv2_ui_instantiate(
_lv2->slv2_plugin(), _lv2->slv2_ui(), LV2PluginUI::lv2_ui_write, this,
_lv2->features());
features_dst);
if (is_external_ui) {
free(features_dst);
}
uint32_t num_ports = slv2_plugin_get_num_ports(lv2p->slv2_plugin());
uint32_t num_ports = slv2_plugin_get_num_ports(_lv2->slv2_plugin());
for (uint32_t i = 0; i < num_ports; ++i) {
if (lv2p->parameter_is_output(i) && lv2p->parameter_is_control(i) && is_update_wanted(i)) {
if (_lv2->parameter_is_output(i) && _lv2->parameter_is_control(i) && is_update_wanted(i)) {
_output_ports.push_back(i);
}
}
GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
_gui_widget = Glib::wrap(c_widget);
_gui_widget->show_all();
pack_start(*_gui_widget, true, true);
_external_ui_ptr = NULL;
if (_inst) {
if (!is_external_ui) {
GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
_gui_widget = Glib::wrap(c_widget);
_gui_widget->show_all();
pack_start(*_gui_widget, true, true);
} else {
_external_ui_ptr = (struct lv2_external_ui *)slv2_ui_instance_get_widget(_inst);
g_external_uis.push_back(_external_ui_ptr);
}
}
_values = new float[num_ports];
for (uint32_t i = 0; i < num_ports; ++i) {
bool ok;
uint32_t port = lv2p->nth_parameter(i, ok);
uint32_t port = _lv2->nth_parameter(i, ok);
if (ok) {
_values[port] = lv2p->get_parameter(port);
if (lv2p->parameter_is_control(port) && lv2p->parameter_is_input(port)) {
_values[port] = _lv2->get_parameter(port);
if (_lv2->parameter_is_control(port) && _lv2->parameter_is_input(port)) {
parameter_update(port, _values[port]);
}
}
@ -127,8 +235,12 @@ LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<
LV2PluginUI::~LV2PluginUI ()
{
delete[] _values;
// plugin destructor destroys the GUI
//cout << "LV2PluginUI destructor called" << endl;
if (_values) {
delete[] _values;
}
// plugin destructor destroys the GTK GUI
}
int
@ -148,10 +260,15 @@ LV2PluginUI::get_preferred_width ()
int
LV2PluginUI::package (Gtk::Window& win)
{
/* forward configure events to plugin window */
win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
win.signal_map_event().connect (mem_fun (*this, &LV2PluginUI::start_updating));
win.signal_unmap_event().connect (mem_fun (*this, &LV2PluginUI::stop_updating));
//cout << "package" << endl;
if (_external_ui_ptr) {
_win_ptr = &win;
} else {
/* forward configure events to plugin window */
win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
win.signal_map_event().connect (mem_fun (*this, &LV2PluginUI::start_updating));
win.signal_unmap_event().connect (mem_fun (*this, &LV2PluginUI::stop_updating));
}
return 0;
}
@ -168,3 +285,41 @@ LV2PluginUI::is_update_wanted(uint32_t index)
/* FIXME this should check the port notification properties, which nobody sets now anyway :) */
return true;
}
bool
LV2PluginUI::on_window_show(const Glib::ustring& title)
{
//cout << "on_window_show - " << title << endl; flush(cout);
if (_lv2->is_external_ui()) {
if (_external_ui_ptr) {
LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
return false;
}
lv2ui_instantiate(title);
if (!_external_ui_ptr) {
return false;
}
LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
_screen_update_connection.disconnect();
_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
(mem_fun(*this, &LV2PluginUI::output_update));
return false;
}
return true;
}
void
LV2PluginUI::on_window_hide()
{
//cout << "on_window_hide" << endl; flush(cout);
if (_external_ui_ptr) {
LV2_EXTERNAL_UI_HIDE(_external_ui_ptr);
//slv2_ui_instance_get_descriptor(_inst)->cleanup(_inst);
//_external_ui_ptr = NULL;
//_screen_update_connection.disconnect();
}
}

View file

@ -34,6 +34,8 @@
#ifdef HAVE_LV2
#include "lv2_external_ui.h"
namespace ARDOUR {
class PluginInsert;
class LV2Plugin;
@ -60,6 +62,13 @@ class LV2PluginUI : public PlugUIBase, public Gtk::VBox
Gtk::Widget* _gui_widget;
SLV2UIInstance _inst;
float* _values;
struct lv2_external_ui_host _external_ui_host;
LV2_Feature _external_ui_feature;
struct lv2_external_ui* _external_ui_ptr;
Gtk::Window* _win_ptr;
static void on_external_ui_closed(LV2UI_Controller controller);
static void lv2_ui_write(
LV2UI_Controller controller,
@ -68,12 +77,17 @@ class LV2PluginUI : public PlugUIBase, public Gtk::VBox
uint32_t format,
const void* buffer);
void lv2ui_instantiate(const Glib::ustring& title);
void parameter_changed(uint32_t, float);
void parameter_update(uint32_t, float);
bool configure_handler (GdkEventConfigure*);
void save_plugin_setting ();
void output_update();
bool is_update_wanted(uint32_t index);
virtual bool on_window_show(const Glib::ustring& title);
virtual void on_window_hide();
};
#endif // HAVE_LV2

View file

@ -285,6 +285,10 @@ sigpipe_handler (int sig)
}
}
#ifdef HAVE_LV2
void close_external_ui_windows();
#endif
#ifdef VST_SUPPORT
extern int gui_init (int* argc, char** argv[]);
@ -386,6 +390,9 @@ int main (int argc, char* argv[])
ARDOUR::cleanup ();
pthread_cancel_all ();
#ifdef HAVE_LV2
close_external_ui_windows();
#endif
return 0;
}
#ifdef VST_SUPPORT

View file

@ -190,11 +190,17 @@ PluginUIWindow::on_focus_out_event (GdkEventFocus *ev)
void
PluginUIWindow::on_show ()
{
set_role("plugin_ui");
if (_pluginui) {
_pluginui->update_presets ();
}
Window::on_show ();
if (_pluginui) {
if (_pluginui->on_window_show (_title)) {
Window::on_show ();
}
}
if (parent) {
// set_transient_for (*parent);
@ -205,6 +211,18 @@ void
PluginUIWindow::on_hide ()
{
Window::on_hide ();
if (_pluginui) {
_pluginui->on_window_hide ();
}
}
void
PluginUIWindow::set_title(const Glib::ustring& title)
{
//cout << "PluginUIWindow::set_title(\"" << title << "\"" << endl;
Gtk::Window::set_title(title);
_title = title;
}
bool

View file

@ -82,6 +82,9 @@ class PlugUIBase : public virtual sigc::trackable
virtual void update_presets ();
virtual bool on_window_show(const Glib::ustring& title) { return true; }
virtual void on_window_hide() {}
protected:
boost::shared_ptr<ARDOUR::PluginInsert> insert;
boost::shared_ptr<ARDOUR::Plugin> plugin;
@ -230,8 +233,10 @@ class PluginUIWindow : public Gtk::Window
void on_hide ();
void on_map ();
void set_title(const Glib::ustring& title);
private:
Glib::ustring _title;
PlugUIBase* _pluginui;
sigc::connection death_connection;
Gtk::Window* parent;

View file

@ -64,6 +64,7 @@ class LV2Plugin : public ARDOUR::Plugin
SLV2Plugin slv2_plugin() { return _plugin; }
SLV2UI slv2_ui() { return _ui; }
bool is_external_ui() const;
SLV2Port slv2_port(uint32_t i) { return slv2_plugin_get_port_by_index(_plugin, i); }
const char* port_symbol(uint32_t port);
@ -159,6 +160,7 @@ struct LV2World {
SLV2Value toggled;
SLV2Value srate;
SLV2Value gtk_gui;
SLV2Value external_gui;
};

View file

@ -149,6 +149,17 @@ LV2Plugin::init (LV2World& world, SLV2Plugin plugin, nframes_t rate)
break;
}
}
// if gtk gui is not available, try to find external gui
if (!_ui) {
for (unsigned i=0; i < slv2_uis_size(uis); ++i) {
SLV2UI ui = slv2_uis_get_at(uis, i);
if (slv2_ui_is_a(ui, _world.external_gui)) {
_ui = ui;
break;
}
}
}
}
Plugin::setup_controls ();
@ -176,6 +187,12 @@ LV2Plugin::~LV2Plugin ()
}
}
bool
LV2Plugin::is_external_ui() const
{
return slv2_ui_is_a(_ui, _world.external_gui);
}
string
LV2Plugin::unique_id() const
{
@ -552,6 +569,7 @@ LV2World::LV2World()
toggled = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "toggled");
srate = slv2_value_new_uri(world, SLV2_NAMESPACE_LV2 "sampleRate");
gtk_gui = slv2_value_new_uri(world, "http://lv2plug.in/ns/extensions/ui#GtkUI");
external_gui = slv2_value_new_uri(world, "http://lv2plug.in/ns/extensions/ui#external");
}
LV2World::~LV2World()