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livetrax/gtk2_ardour/midi_streamview.cc
David Robillard ab2af5d185 Fix several crashes on MIDI recording. 
Fix MIDI CC iterator infinite looping.
Only allocate Text widget for MIDI events if necessary.


git-svn-id: svn://localhost/ardour2/branches/3.0@3307 d708f5d6-7413-0410-9779-e7cbd77b26cf
2008-05-02 20:57:27 +00:00

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/*
Copyright (C) 2001-2007 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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cmath>
#include <cassert>
#include <utility>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/midi_playlist.h>
#include <ardour/midi_region.h>
#include <ardour/midi_source.h>
#include <ardour/midi_diskstream.h>
#include <ardour/midi_track.h>
#include <ardour/smf_source.h>
#include <ardour/region_factory.h>
#include "midi_streamview.h"
#include "region_view.h"
#include "midi_region_view.h"
#include "midi_time_axis.h"
#include "canvas-simplerect.h"
#include "region_selection.h"
#include "selection.h"
#include "public_editor.h"
#include "ardour_ui.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "utils.h"
#include "simplerect.h"
#include "lineset.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
: StreamView (tv)
, note_range_adjustment(0.0f, 0.0f, 0.0f)
, _range(ContentsRange)
, _range_sum_cache(-1.0)
, _lowest_note(60)
, _highest_note(60)
{
if (tv.is_track())
stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
else
stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
use_rec_regions = tv.editor.show_waveforms_recording ();
/* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
midi_underlay_group = new ArdourCanvas::Group (*canvas_group);
midi_underlay_group->lower_to_bottom();
/* put the note lines in the timeaxisview's group, so it
can be put below ghost regions from MIDI underlays*/
_note_lines = new ArdourCanvas::Lineset(*canvas_group, ArdourCanvas::Lineset::Horizontal);
_note_lines->property_x1() = 0;
_note_lines->property_y1() = 0;
_note_lines->property_x2() = trackview().editor.frame_to_pixel (max_frames);
_note_lines->property_y2() = 0;
_note_lines->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), _note_lines, &_trackview));
_note_lines->lower_to_bottom();
note_range_adjustment.signal_value_changed().connect (mem_fun (*this, &MidiStreamView::note_range_adjustment_changed));
ColorsChanged.connect(mem_fun(*this, &MidiStreamView::draw_note_lines));
}
MidiStreamView::~MidiStreamView ()
{
}
RegionView*
MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd)
{
boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
if (region == 0) {
return NULL;
}
MidiRegionView *region_view;
list<RegionView *>::iterator i;
for (i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region() == r) {
/* great. we already have a MidiRegionView for this Region. use it again. */
(*i)->set_valid (true);
(*i)->enable_display(wfd);
display_region(dynamic_cast<MidiRegionView*>(*i), wfd);
return NULL;
}
}
region_view = new MidiRegionView (canvas_group, _trackview, region,
_samples_per_unit, region_color);
region_view->init (region_color, false);
region_views.push_front (region_view);
/* follow global waveform setting */
if (wfd) {
region_view->enable_display(true);
region_view->midi_region()->midi_source(0)->load_model();
}
/* display events and find note range */
display_region(region_view, wfd);
/* always display at least 1 octave range */
_highest_note = max(_highest_note, static_cast<uint8_t>(_lowest_note + 11));
/* catch regionview going away */
region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_region_view), region));
RegionViewAdded (region_view);
return region_view;
}
void
MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
{
if ( ! region_view)
return;
boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
if (load_model)
source->load_model();
// Find our note range
if (source->model())
for (size_t i=0; i < source->model()->n_notes(); ++i)
update_bounds(source->model()->note_at(i)->note());
// Display region contents
region_view->display_model(source->model());
}
void
MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
{
StreamView::display_diskstream(ds);
draw_note_lines();
NoteRangeChanged();
}
// FIXME: code duplication with AudioStreamView
void
MidiStreamView::redisplay_diskstream ()
{
list<RegionView *>::iterator i, tmp;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->enable_display(true); // FIXME: double display, remove
(*i)->set_valid (false);
/* FIXME: slow. MidiRegionView needs a find_note_range method
* that finds the range without wasting time drawing the events */
// Load model if it isn't already, to get note range
MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
mrv->midi_region()->midi_source(0)->load_model();
}
//_lowest_note = 60; // middle C
//_highest_note = _lowest_note + 11;
if (_trackview.is_midi_track()) {
_trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
}
/* Always display at least one octave */
if (_highest_note == 127) {
if (_lowest_note > (127 - 11))
_lowest_note = 127 - 11;
} else if (_highest_note < _lowest_note + 11) {
_highest_note = _lowest_note + 11;
}
for (i = region_views.begin(); i != region_views.end(); ) {
tmp = i;
tmp++;
if (!(*i)->is_valid()) {
delete *i;
region_views.erase (i);
} else {
(*i)->enable_display(true);
(*i)->set_y_position_and_height(0, height); // apply note range
}
i = tmp;
}
/* now fix layering */
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
region_layered (*i);
}
note_range_adjustment.set_page_size(_highest_note - _lowest_note);
note_range_adjustment.set_value(_lowest_note);
NoteRangeChanged();
draw_note_lines();
}
void
MidiStreamView::update_contents_y_position_and_height ()
{
StreamView::update_contents_y_position_and_height();
_note_lines->property_y2() = height;
draw_note_lines();
}
void
MidiStreamView::draw_note_lines()
{
double y;
double prev_y = contents_height();
uint32_t color;
_note_lines->clear();
for(int i = _lowest_note; i <= _highest_note; ++i) {
y = floor(note_to_y(i));
_note_lines->add_line(prev_y, 1.0, ARDOUR_UI::config()->canvasvar_PianoRollBlackOutline.get());
switch(i % 12) {
case 1:
case 3:
case 6:
case 8:
case 10:
color = ARDOUR_UI::config()->canvasvar_PianoRollBlack.get();
break;
default:
color = ARDOUR_UI::config()->canvasvar_PianoRollWhite.get();
break;
}
if(i == _highest_note) {
_note_lines->add_line(y, prev_y - y, color);
}
else {
_note_lines->add_line(y + 1.0, prev_y - y - 1.0, color);
}
prev_y = y;
}
}
void
MidiStreamView::set_note_range(VisibleNoteRange r)
{
_range = r;
if (r == FullRange) {
_lowest_note = 0;
_highest_note = 127;
} else {
_lowest_note = 60;
_highest_note = 60;
}
redisplay_diskstream();
}
void
MidiStreamView::set_note_range(uint8_t lowest, uint8_t highest) {
if(_range == ContentsRange) {
_lowest_note = lowest;
_highest_note = highest;
list<RegionView *>::iterator i;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_y_position_and_height(0, height); // apply note range
}
}
draw_note_lines();
NoteRangeChanged();
}
void
MidiStreamView::update_bounds(uint8_t note_num)
{
_lowest_note = min(_lowest_note, note_num);
_highest_note = max(_highest_note, note_num);
}
void
MidiStreamView::setup_rec_box ()
{
// cerr << _trackview.name() << " streamview SRB\n";
if (_trackview.session().transport_rolling()) {
if (!rec_active &&
_trackview.session().record_status() == Session::Recording &&
_trackview.get_diskstream()->record_enabled()) {
if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
/* add a new region, but don't bother if they set use_rec_regions mid-record */
MidiRegion::SourceList sources;
for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
(*prc).disconnect();
}
rec_data_ready_connections.clear();
// FIXME
boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
assert(mds);
sources.push_back(mds->write_source());
rec_data_ready_connections.push_back (mds->write_source()->ViewDataRangeReady.connect (bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), boost::weak_ptr<Source>(mds->write_source()))));
// handle multi
jack_nframes_t start = 0;
if (rec_regions.size() > 0) {
start = rec_regions.back().first->position() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
}
boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
(RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
assert(region);
region->set_position (_trackview.session().transport_frame(), this);
rec_regions.push_back (make_pair(region, (RegionView*)0));
// rec regions are destroyed in setup_rec_box
/* we add the region later */
}
/* start a new rec box */
boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
jack_nframes_t frame_pos = ds->current_capture_start ();
gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
gdouble xend;
uint32_t fill_color;
assert(_trackview.midi_track()->mode() == Normal);
xend = xstart;
fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
rec_rect->property_x1() = xstart;
rec_rect->property_y1() = 1.0;
rec_rect->property_x2() = xend;
rec_rect->property_y2() = (double) _trackview.height - 1;
rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
rec_rect->property_fill_color_rgba() = fill_color;
rec_rect->lower_to_bottom();
RecBoxInfo recbox;
recbox.rectangle = rec_rect;
recbox.start = _trackview.session().transport_frame();
recbox.length = 0;
rec_rects.push_back (recbox);
screen_update_connection.disconnect();
screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
rec_updating = true;
rec_active = true;
} else if (rec_active &&
(_trackview.session().record_status() != Session::Recording ||
!_trackview.get_diskstream()->record_enabled())) {
screen_update_connection.disconnect();
rec_active = false;
rec_updating = false;
}
} else {
// cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
if (!rec_rects.empty() || !rec_regions.empty()) {
/* disconnect rapid update */
screen_update_connection.disconnect();
for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
(*prc).disconnect();
}
rec_data_ready_connections.clear();
rec_updating = false;
rec_active = false;
/* remove temp regions */
for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
tmp = iter;
++tmp;
(*iter).first->drop_references ();
iter = tmp;
}
rec_regions.clear();
// cerr << "\tclear " << rec_rects.size() << " rec rects\n";
/* transport stopped, clear boxes */
for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
RecBoxInfo &rect = (*iter);
delete rect.rectangle;
}
rec_rects.clear();
}
}
}
void
MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
{
ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
if (use_rec_regions) {
uint32_t n = 0;
bool update_range = false;
for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
tmp = iter;
++tmp;
boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(iter->first);
if (!region || !iter->second) {
iter = tmp;
continue;
}
if (!canvas_item_visible (rec_rects[n].rectangle)) {
/* rect already hidden, this region is done */
iter = tmp;
continue;
}
nframes_t origlen = region->length();
if (region == rec_regions.back().first && rec_active) {
if (start >= region->midi_source(0)->timeline_position()) {
nframes_t nlen = start + dur - region->position();
if (nlen != region->length()) {
region->freeze ();
region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
region->set_length (start + dur - region->position(), this);
region->thaw ("updated");
if (origlen == 1) {
/* our special initial length */
iter->second = add_region_view_internal (region, false);
((MidiRegionView*)iter->second)->begin_write();
}
/* also update rect */
ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
rect->property_x2() = xend;
/* draw events */
MidiRegionView* mrv = (MidiRegionView*)iter->second;
for (size_t i=0; i < data->n_notes(); ++i) {
// FIXME: slooooooooow!
const boost::shared_ptr<Note> note = data->note_at(i);
if (note->duration() > 0 && note->end_time() + region->position() > start)
mrv->resolve_note(note->note(), note->end_time());
if (note->time() + region->position() < start)
continue;
if (note->time() + region->position() > start + dur)
break;
mrv->add_note(note);
if (note->note() < _lowest_note) {
_lowest_note = note->note();
update_range = true;
} else if (note->note() > _highest_note) {
_highest_note = note->note();
update_range = true;
}
}
mrv->extend_active_notes();
}
}
} else {
nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
if (nlen != region->length()) {
if (region->source(0)->length() >= region->position() + nlen) {
region->freeze ();
region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
region->set_length (nlen, this);
region->thaw ("updated");
if (origlen == 1) {
/* our special initial length */
iter->second = add_region_view_internal (region, false);
}
/* also hide rect */
ArdourCanvas::Item * rect = rec_rects[n].rectangle;
rect->hide();
}
}
}
iter = tmp;
}
if (update_range)
update_contents_y_position_and_height();
}
}
void
MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
{
// this is called from the butler thread for now
ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
this->update_rec_regions (src->model(), start, dur);
}
void
MidiStreamView::color_handler ()
{
//case cMidiTrackBase:
if (_trackview.is_midi_track()) {
//canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
}
//case cMidiBusBase:
if (!_trackview.is_midi_track()) {
//canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
}
}
void
MidiStreamView::note_range_adjustment_changed() {
double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
int lowest = (int) floor(note_range_adjustment.get_value());
int highest;
if(sum == _range_sum_cache) {
//cerr << "cached" << endl;
highest = (int) floor(sum);
}
else {
//cerr << "recalc" << endl;
highest = lowest + (int) floor(note_range_adjustment.get_page_size());
_range_sum_cache = sum;
}
if(lowest == lowest_note() && highest == highest_note()) {
return;
}
//cerr << "note range changed: " << lowest << " " << highest << endl;
//cerr << " val=" << v_zoom_adjustment.get_value() << " page=" << v_zoom_adjustment.get_page_size() << " sum=" << v_zoom_adjustment.get_value() + v_zoom_adjustment.get_page_size() << endl;
set_note_range(lowest, highest);
}
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