add compositor crop resize/shrink, rework 3rd-party build for pkg-cfg cflags/libs

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / tracks.C

diff --git a/cinelerra-5.1/cinelerra/tracks.C b/cinelerra-5.1/cinelerra/tracks.C
index 7feb1f99cfc1febeec05653ee8843c244ec52f1f..bb31f6dbecd2fa59c492101819bf5aae192244cb 100644 (file)
--- a/cinelerra-5.1/cinelerra/tracks.C
+++ b/cinelerra-5.1/cinelerra/tracks.C
@@ -522,14 +522,62 @@ double Tracks::total_length_framealigned(double fps)
        return 0;
 }
 
-void Tracks::translate_projector(float offset_x, float offset_y)
+void Tracks::translate_fauto_xy(int fauto, float dx, float dy, int all)
 {
-       for(Track *current = first; current; current = NEXT)
-       {
-               if(current->data_type == TRACK_VIDEO)
-               {
-                       ((VTrack*)current)->translate(offset_x, offset_y, 0);
-               }
+       Track *track = first;
+       for( ; track; track=track->next ) {
+               if( !all && !track->record ) continue;
+               if( track->data_type != TRACK_VIDEO ) continue;
+               ((VTrack*)track)->translate(fauto, dx, dy, all);
+       }
+}
+
+void Tracks::translate_projector(float dx, float dy, int all)
+{
+       translate_fauto_xy(AUTOMATION_PROJECTOR_X, dx, dy, all);
+}
+
+void Tracks::translate_camera(float dx, float dy, int all)
+{
+       translate_fauto_xy(AUTOMATION_CAMERA_X, dx, dy, all);
+}
+
+void Tracks::crop_resize(float x, float y, float z)
+{
+       float ctr_x = edl->session->output_w / 2.;
+       float ctr_y = edl->session->output_h / 2.;
+       Track *track = first;
+       for( ; track; track=track->next ) {
+               if( !track->record ) continue;
+               if( track->data_type != TRACK_VIDEO ) continue;
+               float px, py, pz;
+               track->get_projector(px, py, pz);
+               float old_x = px + ctr_x;
+               float old_y = py + ctr_y;
+               float nx = (old_x - x) * z;
+               float ny = (old_y - y) * z;
+               track->set_projector(nx, ny, pz * z);
+       }
+}
+
+void Tracks::crop_shrink(float x, float y, float z)
+{
+       float ctr_x = edl->session->output_w / 2.;
+       float ctr_y = edl->session->output_h / 2.;
+       Track *track = first;
+       for( ; track; track=track->next ) {
+               if( !track->record ) continue;
+               if( track->data_type != TRACK_VIDEO ) continue;
+               float cx, cy, cz, px, py, pz;
+               track->get_camera(cx, cy, cz);
+               track->get_projector(px, py, pz);
+               float dx = x - (px + ctr_x);
+               float dy = y - (py + ctr_y);
+               cz *= pz;
+               cx += dx / cz;  cy += dy / cz;
+               track->set_camera(cx, cy, cz * z);
+               px += dx;  py += dy;
+               track->set_projector(px, py, 1 / z);
        }
 }