Optimize automation-event process splitting

[ardour.git] / gtk2_ardour / tempo_lines.cc

diff --git a/gtk2_ardour/tempo_lines.cc b/gtk2_ardour/tempo_lines.cc
index 09c2df1ce99a6e0ed35f6be2bbb76b31fbf7c2e7..921c962d756486a1f45a653506ec7c55cd3c4622 100644 (file)
--- a/gtk2_ardour/tempo_lines.cc
+++ b/gtk2_ardour/tempo_lines.cc
@@ -29,16 +29,24 @@
 
 using namespace std;
 
-TempoLines::TempoLines (ArdourCanvas::Container* group, double)
+TempoLines::TempoLines (ArdourCanvas::Container* group, double, ARDOUR::BeatsSamplesConverter* bfc)
        : lines (group, ArdourCanvas::LineSet::Vertical)
+       , _bfc (bfc)
 {
        lines.set_extent (ArdourCanvas::COORD_MAX);
 }
 
+TempoLines::~TempoLines ()
+{
+       delete _bfc;
+       _bfc = 0;
+}
+
 void
-TempoLines::tempo_map_changed()
+TempoLines::tempo_map_changed (samplepos_t new_origin)
 {
        lines.clear ();
+       _bfc->set_origin_b (new_origin);
 }
 
 void
@@ -56,8 +64,8 @@ TempoLines::hide ()
 void
 TempoLines::draw_ticks (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
                        unsigned                                              divisions,
-                        framecnt_t                                            leftmost_frame,
-                        framecnt_t                                            frame_rate)
+                        samplecnt_t                                            leftmost_sample,
+                        samplecnt_t                                            sample_rate)
 {
        const uint32_t base = UIConfiguration::instance().color_mod("measure line beat", "measure line beat");
 
@@ -72,21 +80,9 @@ TempoLines::draw_ticks (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
                /* draw line with alpha corresponding to coarsest level */
                const uint8_t    a = max(8, (int)rint(UINT_RGBA_A(base) / (0.8 * log2(level))));
                const uint32_t   c = UINT_RGBA_CHANGE_A(base, a);
-               framepos_t f = 0;
-
-               if (grid.begin()->c != 0.0) {
-                       const double beat_divisions = (l / ((double) divisions)) * (grid.begin()->tempo.note_type() / grid.begin()->meter.note_divisor());
-                       const double time_at_division = log (((grid.begin()->c * (beat_divisions)) /
-                                                          grid.begin()->tempo.beats_per_minute()) + 1) / grid.begin()->c;
+               const samplepos_t f = _bfc->to (Temporal::Beats (grid.begin()->qn + (l / (double) divisions))) + _bfc->origin_b();
 
-                       f = grid.begin()->frame + (framecnt_t) floor ((time_at_division * 60.0 * frame_rate) + 0.5);
-               } else {
-                       const double fpb  = grid.begin()->tempo.frames_per_beat (frame_rate)
-                               * (grid.begin()->tempo.note_type() / grid.begin()->meter.note_divisor());
-
-                       f = grid.begin()->frame + (l * (fpb / (double) divisions));
-               }
-               if (f > leftmost_frame) {
+               if (f > leftmost_sample) {
                        lines.add (PublicEditor::instance().sample_to_pixel_unrounded (f), 1.0, c);
                }
        }
@@ -95,14 +91,16 @@ TempoLines::draw_ticks (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
 void
 TempoLines::draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
                  unsigned                                              divisions,
-                  framecnt_t                                            leftmost_frame,
-                  framecnt_t                                            frame_rate)
+                  samplecnt_t                                            leftmost_sample,
+                  samplecnt_t                                            sample_rate)
 {
        std::vector<ARDOUR::TempoMap::BBTPoint>::const_iterator i;
        double  beat_density;
 
        uint32_t beats = 0;
        uint32_t bars = 0;
+       const uint32_t bar_color = UIConfiguration::instance().color ("measure line bar");
+       const uint32_t beat_color = UIConfiguration::instance().color_mod ("measure line beat", "measure line beat");
        uint32_t color;
 
        bool all_bars = false;
@@ -131,9 +129,9 @@ TempoLines::draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
        }
 
        double canvas_width_used = 1.0;
-       if (leftmost_frame < grid.front().frame) {
-               const framecnt_t frame_distance = max ((framecnt_t) 1, grid.back().frame - grid.front().frame);
-               canvas_width_used = 1.0 - ((grid.front().frame - leftmost_frame) / (double) (frame_distance + grid.front().frame));
+       if (leftmost_sample < grid.front().sample) {
+               const samplecnt_t sample_distance = max ((samplecnt_t) 1, grid.back().sample - grid.front().sample);
+               canvas_width_used = 1.0 - ((grid.front().sample - leftmost_sample) / (double) (sample_distance + grid.front().sample));
        }
 
        beat_density = (beats * 10.0f) / (lines.canvas()->width() * canvas_width_used);
@@ -150,11 +148,11 @@ TempoLines::draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
        }
 
        lines.clear ();
-       if (beat_density <= 0.12 && grid.begin() != grid.end() && grid.begin()->frame > 0 && !all_bars) {
+       if (beat_density <= 0.12 && grid.begin() != grid.end() && grid.begin()->sample > 0 && !all_bars) {
                /* draw subdivisions of the beat before the first visible beat line XX this shouldn't happen now */
                std::vector<ARDOUR::TempoMap::BBTPoint> vec;
                vec.push_back (*i);
-               draw_ticks (vec, divisions, leftmost_frame, frame_rate);
+               draw_ticks (vec, divisions, leftmost_sample, sample_rate);
        }
 
        for (i = grid.begin(); i != grid.end(); ++i) {
@@ -165,15 +163,15 @@ TempoLines::draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
                                continue;
                        }
 
-                       color = UIConfiguration::instance().color ("measure line bar");
+                       color = bar_color;
                } else {
                        if (beat_density > 0.3) {
                                continue; /* only draw beat lines if the gaps between beats are large. */
                        }
-                       color = UIConfiguration::instance().color_mod ("measure line beat", "measure line beat");
+                       color = beat_color;
                }
 
-               ArdourCanvas::Coord xpos = PublicEditor::instance().sample_to_pixel_unrounded ((*i).frame);
+               ArdourCanvas::Coord xpos = PublicEditor::instance().sample_to_pixel_unrounded ((*i).sample);
 
                lines.add (xpos, 1.0, color);
 
@@ -181,7 +179,7 @@ TempoLines::draw (std::vector<ARDOUR::TempoMap::BBTPoint>& grid,
                        /* draw subdivisions of this beat */
                        std::vector<ARDOUR::TempoMap::BBTPoint> vec;
                        vec.push_back (*i);
-                       draw_ticks (vec, divisions, leftmost_frame, frame_rate);
+                       draw_ticks (vec, divisions, leftmost_sample, sample_rate);
                }
        }
 }