2 Copyright (C) 2008 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "ardour/processor.h"
22 #include "ardour/lv2_plugin.h"
24 #include "ardour_ui.h"
25 #include "gui_thread.h"
26 #include "lv2_plugin_ui.h"
29 using namespace ARDOUR;
33 LV2PluginUI::lv2_ui_write(
34 LV2UI_Controller controller,
36 uint32_t /*buffer_size*/,
40 //cout << "lv2_ui_write" << endl;
41 LV2PluginUI* me = (LV2PluginUI*)controller;
42 if (*(float*)buffer != me->_values[port_index]) {
43 //cout << "set_parameter " << port_index << ":" << *(float*)buffer << endl;
44 me->_lv2->set_parameter(port_index, *(float*)buffer);
48 void LV2PluginUI::on_external_ui_closed(LV2UI_Controller controller)
50 LV2PluginUI* me = (LV2PluginUI*)controller;
51 me->_screen_update_connection.disconnect();
52 me->_external_ui_ptr = NULL;
56 LV2PluginUI::parameter_changed (uint32_t port_index, float val)
58 //cout << "parameter_changed" << endl;
59 if (val != _values[port_index]) {
60 parameter_update(port_index, val);
65 LV2PluginUI::parameter_update (uint32_t port_index, float val)
71 const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
72 LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
73 if (ui_desc->port_event)
74 ui_desc->port_event(ui_handle, port_index, 4, 0, &val);
75 _values[port_index] = val;
79 LV2PluginUI::start_updating(GdkEventAny*)
81 if (!_output_ports.empty()) {
82 _screen_update_connection.disconnect();
83 _screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
84 (sigc::mem_fun(*this, &LV2PluginUI::output_update));
90 LV2PluginUI::stop_updating(GdkEventAny*)
92 //cout << "stop_updating" << endl;
94 if (//!_external_ui_ptr &&
95 !_output_ports.empty()) {
96 _screen_update_connection.disconnect();
102 LV2PluginUI::output_update()
104 //cout << "output_update" << endl;
105 if (_external_ui_ptr) {
106 LV2_EXTERNAL_UI_RUN(_external_ui_ptr);
109 /* FIXME only works with control output ports (which is all we support now anyway) */
110 uint32_t nports = _output_ports.size();
111 for (uint32_t i = 0; i < nports; ++i) {
112 uint32_t index = _output_ports[i];
113 parameter_changed(index, _lv2->get_parameter(index));
118 LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
123 , _external_ui_ptr(NULL)
125 if (!_lv2->is_external_ui()) {
126 lv2ui_instantiate("gtk2gui");
131 LV2PluginUI::lv2ui_instantiate(const Glib::ustring& title)
133 LV2_Feature** features;
134 LV2_Feature** features_src;
135 LV2_Feature** features_dst;
136 size_t features_count;
139 is_external_ui = _lv2->is_external_ui();
141 if (is_external_ui) {
142 _external_ui_host.ui_closed = LV2PluginUI::on_external_ui_closed;
143 _external_ui_host.plugin_human_id = strdup(title.c_str());
145 _external_ui_feature.URI = LV2_EXTERNAL_UI_URI;
146 _external_ui_feature.data = &_external_ui_host;
148 features_src = features = (LV2_Feature**)_lv2->features();
150 while (*features++) {
154 features_dst = features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * features_count);
155 features_dst[--features_count] = NULL;
156 features_dst[--features_count] = &_external_ui_feature;
157 while (features_count--) {
158 *features++ = *features_src++;
161 features_dst = (LV2_Feature**)_lv2->features();
164 _inst = slv2_ui_instantiate(
165 _lv2->slv2_plugin(), _lv2->slv2_ui(), LV2PluginUI::lv2_ui_write, this,
168 if (is_external_ui) {
172 uint32_t num_ports = slv2_plugin_get_num_ports(_lv2->slv2_plugin());
173 for (uint32_t i = 0; i < num_ports; ++i) {
174 if (_lv2->parameter_is_output(i) && _lv2->parameter_is_control(i) && is_update_wanted(i)) {
175 _output_ports.push_back(i);
179 _external_ui_ptr = NULL;
181 if (!is_external_ui) {
182 GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
183 _gui_widget = Glib::wrap(c_widget);
184 _gui_widget->show_all();
185 pack_start(*_gui_widget, true, true);
187 _external_ui_ptr = (struct lv2_external_ui *)slv2_ui_instance_get_widget(_inst);
191 _values = new float[num_ports];
192 for (uint32_t i = 0; i < num_ports; ++i) {
194 uint32_t port = _lv2->nth_parameter(i, ok);
196 _values[port] = _lv2->get_parameter(port);
197 if (_lv2->parameter_is_control(port) && _lv2->parameter_is_input(port)) {
198 parameter_update(port, _values[port]);
203 _lv2->ParameterChanged.connect (parameter_connection, invalidator (*this), ui_bind (&LV2PluginUI::parameter_changed, this, _1, _2), gui_context());
206 LV2PluginUI::~LV2PluginUI ()
208 //cout << "LV2PluginUI destructor called" << endl;
213 // plugin destructor destroys the GTK GUI
216 const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
217 LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
219 /*Call cleanup to tell the plugin to close its GUI and delete it*/
222 ui_desc->cleanup(ui_handle);
225 _screen_update_connection.disconnect();
227 if (_lv2->is_external_ui()) {
228 /*external UI is no longer valid - on_window_hide() will not try to use it if is NULL*/
229 _external_ui_ptr = NULL;
234 LV2PluginUI::get_preferred_height ()
236 Gtk::Requisition r = size_request();
241 LV2PluginUI::get_preferred_width ()
243 Gtk::Requisition r = size_request();
248 LV2PluginUI::package (Gtk::Window& win)
250 //cout << "package" << endl;
251 if (_external_ui_ptr) {
254 /* forward configure events to plugin window */
255 win.signal_configure_event().connect (sigc::mem_fun (*this, &LV2PluginUI::configure_handler));
256 win.signal_map_event().connect (sigc::mem_fun (*this, &LV2PluginUI::start_updating));
257 win.signal_unmap_event().connect (sigc::mem_fun (*this, &LV2PluginUI::stop_updating));
263 LV2PluginUI::configure_handler (GdkEventConfigure*)
265 std::cout << "CONFIGURE" << std::endl;
270 LV2PluginUI::is_update_wanted(uint32_t /*index*/)
272 /* FIXME this should check the port notification properties, which nobody sets now anyway :) */
277 LV2PluginUI::on_window_show(const Glib::ustring& title)
279 //cout << "on_window_show - " << title << endl; flush(cout);
281 if (_lv2->is_external_ui()) {
282 if (_external_ui_ptr) {
283 LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
286 lv2ui_instantiate(title);
287 if (!_external_ui_ptr) {
291 LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
292 _screen_update_connection.disconnect();
293 _screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
294 (sigc::mem_fun(*this, &LV2PluginUI::output_update));
302 LV2PluginUI::on_window_hide()
304 //cout << "on_window_hide" << endl; flush(cout);
306 if (_external_ui_ptr) {
307 LV2_EXTERNAL_UI_HIDE(_external_ui_ptr);
308 //slv2_ui_instance_get_descriptor(_inst)->cleanup(_inst);
309 //_external_ui_ptr = NULL;
310 //_screen_update_connection.disconnect();