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(native) Linux VST support from LinuxDSP
git-svn-id: svn://localhost/ardour2/branches/3.0@10101 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis
parent
e09e0035a6
commit
d4433b9ab3
38 changed files with 4346 additions and 70 deletions
277
gtk2_ardour/lxvst_pluginui.cc
Executable file
277
gtk2_ardour/lxvst_pluginui.cc
Executable file
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/*
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Copyright (C) 2004 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/******************************************************************/
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/*linuxDSP - pluginui variant for LXVST (native Linux VST) Plugins*/
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/******************************************************************/
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#include <ardour/vstfx.h>
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#include <gtk/gtk.h>
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#include <gtk/gtksocket.h>
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#include <ardour/processor.h>
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#include <ardour/lxvst_plugin.h>
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#include "ardour_ui.h"
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#include "plugin_ui.h"
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#include "lxvst_plugin_ui.h"
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#include <gdk/gdkx.h>
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#define LXVST_H_FIDDLE 40
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using namespace Gtk;
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using namespace ARDOUR;
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using namespace PBD;
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LXVSTPluginUI::LXVSTPluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LXVSTPlugin> lxvp)
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: PlugUIBase (pi),
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lxvst (lxvp)
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{
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create_preset_store ();
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vstfx_run_editor (lxvst->vstfx());
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preset_box.set_spacing (6);
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preset_box.set_border_width (6);
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preset_box.pack_end (bypass_button, false, false, 10);
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preset_box.pack_end (save_button, false, false);
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preset_box.pack_end (lxvst_preset_combo, false, false);
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lxvst_preset_combo.signal_changed().connect (mem_fun (*this, &LXVSTPluginUI::preset_chosen));
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bypass_button.set_active (!insert->active());
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pack_start (preset_box, false, false);
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pack_start (socket, true, true);
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}
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LXVSTPluginUI::~LXVSTPluginUI ()
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{
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_screen_update_connection.disconnect();
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// plugin destructor destroys the custom GUI, via the vstfx engine,
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// and then our PluginUIWindow does the rest
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}
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bool
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LXVSTPluginUI::start_updating (GdkEventAny* ignored)
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{
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_screen_update_connection.disconnect();
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_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
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(mem_fun(*this, &LXVSTPluginUI::resize_callback));
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return false;
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}
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bool
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LXVSTPluginUI::stop_updating (GdkEventAny* ignored)
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{
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_screen_update_connection.disconnect();
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return false;
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}
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void
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LXVSTPluginUI::resize_callback()
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{
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/*We could maybe use this to resize the plugin GTK parent window
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if required*/
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if(lxvst->vstfx()->want_resize)
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{
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int new_height = lxvst->vstfx()->height;
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int new_width = lxvst->vstfx()->width;
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void* gtk_parent_window = lxvst->vstfx()->extra_data;
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if(gtk_parent_window)
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((Gtk::Window*)gtk_parent_window)->resize(new_width, new_height + LXVST_H_FIDDLE);
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lxvst->vstfx()->want_resize = 0;
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}
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}
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void
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LXVSTPluginUI::preset_selected ()
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{
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socket.grab_focus ();
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PlugUIBase::preset_selected ();
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}
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void
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LXVSTPluginUI::preset_chosen ()
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{
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// we can't dispatch directly here, too many plugins only expects one GUI thread.
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lxvst->vstfx()->want_program = lxvst_preset_combo.get_active_row_number ();
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socket.grab_focus ();
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}
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int
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LXVSTPluginUI::get_preferred_height ()
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{
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/*FIXME*/
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/*We have to return the required height of the plugin UI window + a fiddle factor
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because we can't know how big the preset menu bar is until the window is realised
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and we can't realise it until we have told it how big we would like it to be
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which we can't do until it is realised etc*/
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return (lxvst->vstfx()->height) + LXVST_H_FIDDLE; //May not be 40 for all screen res etc
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}
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int
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LXVSTPluginUI::get_preferred_width ()
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{
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return lxvst->vstfx()->width;
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}
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int
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LXVSTPluginUI::package (Gtk::Window& win)
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{
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/* forward configure events to plugin window */
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win.signal_configure_event().connect (bind (mem_fun (*this, &LXVSTPluginUI::configure_handler), &socket), false);
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/*Map the UI start and stop updating events to 'Map' events on the Window*/
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win.signal_map_event().connect (mem_fun (*this, &LXVSTPluginUI::start_updating));
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win.signal_unmap_event().connect (mem_fun (*this, &LXVSTPluginUI::stop_updating));
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/* this assumes that the window's owner understands the XEmbed protocol. */
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socket.add_id (vstfx_get_XID (lxvst->vstfx()));
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vstfx_move_window_into_view (lxvst->vstfx());
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lxvst->vstfx()->extra_data = (void*)(&win);
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lxvst->vstfx()->want_resize = 0;
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return 0;
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}
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bool
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LXVSTPluginUI::configure_handler (GdkEventConfigure* ev, Gtk::Socket *socket)
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{
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XEvent event;
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gint x, y;
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GdkWindow* w;
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if (socket == 0 || ((w = socket->gobj()->plug_window) == 0)) {
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return false;
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}
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event.xconfigure.type = ConfigureNotify;
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event.xconfigure.event = GDK_WINDOW_XWINDOW (w);
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event.xconfigure.window = GDK_WINDOW_XWINDOW (w);
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/* The ICCCM says that synthetic events should have root relative
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* coordinates. We still aren't really ICCCM compliant, since
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* we don't send events when the real toplevel is moved.
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*/
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gdk_error_trap_push ();
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gdk_window_get_origin (w, &x, &y);
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gdk_error_trap_pop ();
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event.xconfigure.x = x;
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event.xconfigure.y = y;
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event.xconfigure.width = GTK_WIDGET(socket->gobj())->allocation.width;
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event.xconfigure.height = GTK_WIDGET(socket->gobj())->allocation.height;
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event.xconfigure.border_width = 0;
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event.xconfigure.above = None;
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event.xconfigure.override_redirect = False;
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gdk_error_trap_push ();
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XSendEvent (GDK_WINDOW_XDISPLAY (w), GDK_WINDOW_XWINDOW (w), False, StructureNotifyMask, &event);
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gdk_error_trap_pop ();
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return false;
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}
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void
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LXVSTPluginUI::forward_key_event (GdkEventKey* ev)
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{
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std::cerr << "LXVSTPluginUI : keypress forwarding to linuxVSTs unsupported" << std::endl;
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}
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void
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LXVSTPluginUI::create_preset_store ()
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{
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VSTFX* vstfx = lxvst->vstfx();
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int vst_version = vstfx->plugin->dispatcher (vstfx->plugin, effGetVstVersion, 0, 0, NULL, 0.0f);
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preset_model = ListStore::create (preset_columns);
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for (int i = 0; i < vstfx->plugin->numPrograms; ++i) {
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char buf[100];
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TreeModel::Row row = *(preset_model->append());
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snprintf (buf, 90, "preset %d", i);
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if (vst_version >= 2) {
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vstfx->plugin->dispatcher (vstfx->plugin, 29, i, 0, buf, 0.0);
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}
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row[preset_columns.name] = buf;
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row[preset_columns.number] = i;
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}
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if (vstfx->plugin->numPrograms > 0) {
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vstfx->plugin->dispatcher( vstfx->plugin, effSetProgram, 0, 0, NULL, 0.0 );
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}
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lxvst_preset_combo.set_model (preset_model);
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CellRenderer* renderer = manage (new CellRendererText());
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lxvst_preset_combo.pack_start (*renderer, true);
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lxvst_preset_combo.add_attribute (*renderer, "text", 0);
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if (lxvst->vstfx()->current_program != -1) {
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lxvst_preset_combo.set_active (lxvst->vstfx()->current_program);
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} else {
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lxvst_preset_combo.set_active (0);
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}
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}
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typedef int (*error_handler_t)( Display *, XErrorEvent *);
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static Display *the_gtk_display;
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static error_handler_t vstfx_error_handler;
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static error_handler_t gtk_error_handler;
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static int
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gtk_xerror_handler( Display *disp, XErrorEvent *ev )
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{
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std::cerr << "** ERROR ** LXVSTPluginUI : Trapped an X Window System Error" << std::endl;
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return 0;
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}
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void
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gui_init (int *argc, char **argv[])
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{
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vstfx_error_handler = XSetErrorHandler (NULL);
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gtk_init (argc, argv);
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the_gtk_display = gdk_x11_display_get_xdisplay (gdk_display_get_default());
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gtk_error_handler = XSetErrorHandler( gtk_xerror_handler );
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}
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