Give group and meter point buttons controllable visibility.
[ardour.git] / gtk2_ardour / editor_timefx.cc
index 4339962a87cbcb802c7526b997b96bc9fe197e1f..1c4162eda2c9e4735dc7d63f6970e05f1a95b922 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2000 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
 #include <iostream>
 #include <cstdlib>
 #include <cmath>
+#include <ctime>
 
 #include <string>
 
 #include "pbd/error.h"
 #include "pbd/pthread_utils.h"
 #include "pbd/memento_command.h"
+#include "pbd/stateful_diff_command.h"
 
-#include <gtkmm2ext/window_title.h>
 #include <gtkmm2ext/utils.h>
 
 #include "audio_region_view.h"
@@ -41,7 +42,6 @@
 #include "ardour/audioplaylist.h"
 #include "ardour/audio_track.h"
 #include "ardour/audioregion.h"
-#include "ardour/audio_diskstream.h"
 #include "ardour/stretch.h"
 #include "ardour/midi_stretch.h"
 #include "ardour/pitch.h"
@@ -56,15 +56,15 @@ using namespace RubberBand;
 using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
-using namespace sigc;
 using namespace Gtk;
 using namespace Gtkmm2ext;
 
+/** @return -1 in case of error, 1 if operation was cancelled by the user, 0 if everything went ok */
 int
 Editor::time_stretch (RegionSelection& regions, float fraction)
 {
        // FIXME: kludge, implement stretching of selection of both types
-       
+
        if (regions.front()->region()->data_type() == DataType::AUDIO) {
                // Audio, pop up timefx dialog
                return time_fx (regions, fraction, false);
@@ -73,20 +73,18 @@ Editor::time_stretch (RegionSelection& regions, float fraction)
                RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&regions.front()->get_time_axis_view());
                if (!rtv)
                        return -1;
-               
-               boost::shared_ptr<Playlist> playlist
-                       = rtv->track()->diskstream()->playlist();
 
-           ARDOUR::TimeFXRequest request;
+               boost::shared_ptr<Playlist> playlist = rtv->track()->playlist();
+
+               ARDOUR::TimeFXRequest request;
                request.time_fraction = fraction;
-               MidiStretch stretch(*session, request);
+               MidiStretch stretch(*_session, request);
                begin_reversible_command ("midi stretch");
                stretch.run(regions.front()->region());
-               XMLNode &before = playlist->get_state();
+                playlist->clear_changes ();
                playlist->replace_region (regions.front()->region(), stretch.results[0],
                                regions.front()->region()->position());
-               XMLNode &after = playlist->get_state();
-               session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
+               _session->add_command (new StatefulDiffCommand (playlist));
                commit_reversible_command ();
        }
 
@@ -99,6 +97,9 @@ Editor::pitch_shift (RegionSelection& regions, float fraction)
        return time_fx (regions, fraction, true);
 }
 
+/** @param val Percentage to time stretch by; ignored if pitch-shifting.
+ *  @param pitching true to pitch shift, false to time stretch.
+ *  @return -1 in case of error, 1 if operation was cancelled by the user, 0 if everything went ok */
 int
 Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 {
@@ -135,12 +136,12 @@ Editor::time_fx (RegionSelection& regions, float val, bool pitching)
                // one octave == 1200 cents
                // adding one octave doubles the frequency
                // ratio is 2^^octaves
-                               
+
                pitch_fraction = pow(2, cents/1200);
 
                current_timefx->request.time_fraction = 1.0;
                current_timefx->request.pitch_fraction = pitch_fraction;
-               
+
        } else {
 
                current_timefx->request.time_fraction = val;
@@ -166,35 +167,56 @@ Editor::time_fx (RegionSelection& regions, float val, bool pitching)
                BandLimitedTransients,
                Transients
        } transients = Transients;
-       
+
        precise = current_timefx->precise_button.get_active();
        preserve_formants = current_timefx->preserve_formants_button.get_active();
-       
-       txt = current_timefx->stretch_opts_selector.get_active_text ();
 
-       if (txt == rb_opt_strings[0]) {
-               transients = NoTransients; peaklock = false; longwin = true; shortwin = false; 
-       } else if (txt == rb_opt_strings[1]) {
-               transients = NoTransients; peaklock = false; longwin = false; shortwin = false; 
-       } else if (txt == rb_opt_strings[2]) {
-               transients = NoTransients; peaklock = true; longwin = false; shortwin = false; 
-       } else if (txt == rb_opt_strings[3]) {
-               transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false; 
-       } else if (txt == rb_opt_strings[5]) {
-               transients = Transients; peaklock = false; longwin = false; shortwin = true; 
-       } else {
-               /* default/4 */
+       txt = current_timefx->stretch_opts_selector.get_active_text ();
 
-               transients = Transients; peaklock = true; longwin = false; shortwin = false; 
+       for (int i = 0; i <= 6; i++) {
+               if (txt == rb_opt_strings[i]) {
+                       rb_current_opt = i;
+                       break;
+               }
        }
 
+       switch (rb_current_opt) {
+               case 0:
+                       transients = NoTransients; peaklock = false; longwin = true; shortwin = false;
+                       break;
+               case 1:
+                       transients = NoTransients; peaklock = false; longwin = false; shortwin = false;
+                       break;
+               case 2:
+                       transients = NoTransients; peaklock = true; longwin = false; shortwin = false;
+                       break;
+               case 3:
+                       transients = BandLimitedTransients; peaklock = true; longwin = false; shortwin = false;
+                       break;
+               case 5:
+                       transients = Transients; peaklock = false; longwin = false; shortwin = true;
+                       break;
+               case 6:
+                       transients = NoTransients;
+                       precise = true;
+                       preserve_formants = false;
+                       current_timefx->request.pitch_fraction = 1/val;
+                       shortwin = true;
+                       // peaklock = false;
+                       break;
+               default:
+                       /* default/4 */
+                       transients = Transients; peaklock = true; longwin = false; shortwin = false;
+                       break;
+       };
+
        if (realtime)          options |= RubberBandStretcher::OptionProcessRealTime;
        if (precise)           options |= RubberBandStretcher::OptionStretchPrecise;
        if (preserve_formants) options |= RubberBandStretcher::OptionFormantPreserved;
        if (!peaklock)         options |= RubberBandStretcher::OptionPhaseIndependent;
        if (longwin)           options |= RubberBandStretcher::OptionWindowLong;
        if (shortwin)          options |= RubberBandStretcher::OptionWindowShort;
-               
+
        switch (transients) {
        case NoTransients:
                options |= RubberBandStretcher::OptionTransientsSmooth;
@@ -215,18 +237,18 @@ Editor::time_fx (RegionSelection& regions, float val, bool pitching)
        current_timefx->request.progress = 0.0f;
        current_timefx->request.done = false;
        current_timefx->request.cancel = false;
-       
+
        /* re-connect the cancel button and delete events */
-       
+
        current_timefx->first_cancel.disconnect();
        current_timefx->first_delete.disconnect();
-       
-       current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect 
-               (mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
-       current_timefx->first_delete = current_timefx->signal_delete_event().connect 
-               (mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
 
-       if (pthread_create_and_store ("timefx", &current_timefx->request.thread, 0, timefx_thread, current_timefx)) {
+       current_timefx->first_cancel = current_timefx->cancel_button->signal_clicked().connect
+               (sigc::mem_fun (current_timefx, &TimeFXDialog::cancel_in_progress));
+       current_timefx->first_delete = current_timefx->signal_delete_event().connect
+               (sigc::mem_fun (current_timefx, &TimeFXDialog::delete_in_progress));
+
+       if (pthread_create_and_store ("timefx", &current_timefx->request.thread, timefx_thread, current_timefx)) {
                current_timefx->hide ();
                error << _("timefx cannot be started - thread creation error") << endmsg;
                return -1;
@@ -234,14 +256,14 @@ Editor::time_fx (RegionSelection& regions, float val, bool pitching)
 
        pthread_detach (current_timefx->request.thread);
 
-       sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
+       sigc::connection c = Glib::signal_timeout().connect (sigc::mem_fun (current_timefx, &TimeFXDialog::update_progress), 100);
 
        while (!current_timefx->request.done && !current_timefx->request.cancel) {
                gtk_main_iteration ();
        }
 
        c.disconnect ();
-       
+
        current_timefx->hide ();
        return current_timefx->status;
 }
@@ -253,7 +275,7 @@ Editor::do_timefx (TimeFXDialog& dialog)
        boost::shared_ptr<Playlist> playlist;
        boost::shared_ptr<Region>   new_region;
        bool in_command = false;
-       
+
        for (RegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
                AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 
@@ -265,7 +287,7 @@ Editor::do_timefx (TimeFXDialog& dialog)
                TimeAxisView* tv = &(arv->get_time_axis_view());
                RouteTimeAxisView* rtv;
                RegionSelection::iterator tmp;
-               
+
                tmp = i;
                ++tmp;
 
@@ -278,8 +300,8 @@ Editor::do_timefx (TimeFXDialog& dialog)
                        i = tmp;
                        continue;
                }
-       
-               if ((playlist = t->diskstream()->playlist()) == 0) {
+
+               if ((playlist = t->playlist()) == 0) {
                        i = tmp;
                        continue;
                }
@@ -293,12 +315,12 @@ Editor::do_timefx (TimeFXDialog& dialog)
                Filter* fx;
 
                if (dialog.pitching) {
-                       fx = new Pitch (*session, dialog.request);
+                       fx = new Pitch (*_session, dialog.request);
                } else {
 #ifdef USE_RUBBERBAND
-                       fx = new RBStretch (*session, dialog.request);
+                       fx = new RBStretch (*_session, dialog.request);
 #else
-                       fx = new STStretch (*session, dialog.request);
+                       fx = new STStretch (*_session, dialog.request);
 #endif
                }
 
@@ -313,14 +335,13 @@ Editor::do_timefx (TimeFXDialog& dialog)
                        new_region = fx->results.front();
 
                        if (!in_command) {
-                               session->begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
+                               _session->begin_reversible_command (dialog.pitching ? _("pitch shift") : _("time stretch"));
                                in_command = true;
                        }
 
-                       XMLNode &before = playlist->get_state();
+                        playlist->clear_changes ();
                        playlist->replace_region (region, new_region, region->position());
-                       XMLNode &after = playlist->get_state();
-                       session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
+                       _session->add_command (new StatefulDiffCommand (playlist));
                }
 
                i = tmp;
@@ -328,7 +349,7 @@ Editor::do_timefx (TimeFXDialog& dialog)
        }
 
        if (in_command) {
-               session->commit_reversible_command ();
+               _session->commit_reversible_command ();
        }
 
        dialog.status = 0;
@@ -338,7 +359,7 @@ Editor::do_timefx (TimeFXDialog& dialog)
 void*
 Editor::timefx_thread (void *arg)
 {
-       PBD::notify_gui_about_thread_creation (pthread_self(), X_("TimeFX"));
+       SessionEvent::create_per_thread_pool ("timefx events", 64);
 
        TimeFXDialog* tsd = static_cast<TimeFXDialog*>(arg);
 
@@ -346,6 +367,14 @@ Editor::timefx_thread (void *arg)
 
        tsd->editor.do_timefx (*tsd);
 
+        /* GACK! HACK! sleep for a bit so that our request buffer for the GUI
+           event loop doesn't die before any changes we made are processed
+           by the GUI ...
+        */
+
+        struct timespec t = { 2, 0 };
+        nanosleep (&t, 0);
+
        return 0;
 }