replace fixed-point linear interpolation with double-based version, thereby removing...

[ardour.git] / libs / ardour / region_factory.cc

diff --git a/libs/ardour/region_factory.cc b/libs/ardour/region_factory.cc
index cc41405551d2ba65aaa4265c6dba54594c29c862..004321fa9e06a55d9862641b471a35ba498004f1 100644 (file)
--- a/libs/ardour/region_factory.cc
+++ b/libs/ardour/region_factory.cc
@@ -17,16 +17,16 @@
 
 */
 
-#include <pbd/error.h>
+#include "pbd/error.h"
 
-#include <ardour/session.h>
+#include "ardour/session.h"
 
-#include <ardour/region_factory.h>
-#include <ardour/region.h>
-#include <ardour/audioregion.h>
-#include <ardour/audiosource.h>
-#include <ardour/midi_source.h>
-#include <ardour/midi_region.h>
+#include "ardour/region_factory.h"
+#include "ardour/region.h"
+#include "ardour/audioregion.h"
+#include "ardour/audiosource.h"
+#include "ardour/midi_source.h"
+#include "ardour/midi_region.h"
 
 #include "i18n.h"
 
@@ -37,8 +37,8 @@ sigc::signal<void,boost::shared_ptr<Region> > RegionFactory::CheckNewRegion;
 
 boost::shared_ptr<Region>
 RegionFactory::create (boost::shared_ptr<Region> region, nframes_t start, 
-                            nframes_t length, std::string name, 
-                            layer_t layer, Region::Flag flags, bool announce)
+                      nframes_t length, const std::string& name, 
+                      layer_t layer, Region::Flag flags, bool announce)
 {
        boost::shared_ptr<const AudioRegion> other_a;
        boost::shared_ptr<const MidiRegion> other_m;
@@ -47,6 +47,7 @@ RegionFactory::create (boost::shared_ptr<Region> region, nframes_t start,
                AudioRegion* ar = new AudioRegion (other_a, start, length, name, layer, flags);
                boost::shared_ptr<AudioRegion> arp (ar);
                boost::shared_ptr<Region> ret (boost::static_pointer_cast<Region> (arp));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }
@@ -55,6 +56,7 @@ RegionFactory::create (boost::shared_ptr<Region> region, nframes_t start,
                MidiRegion* ar = new MidiRegion (other_m, start, length, name, layer, flags);
                boost::shared_ptr<MidiRegion> arp (ar);
                boost::shared_ptr<Region> ret (boost::static_pointer_cast<Region> (arp));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }
@@ -68,17 +70,19 @@ RegionFactory::create (boost::shared_ptr<Region> region, nframes_t start,
 }
 
 boost::shared_ptr<Region>
-RegionFactory::create (boost::shared_ptr<Region> region)
+RegionFactory::create (boost::shared_ptr<const Region> region)
 {
-       boost::shared_ptr<AudioRegion> ar;
-       boost::shared_ptr<MidiRegion> mr;
-       
-       if ((ar = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
+       boost::shared_ptr<const AudioRegion> ar;
+       boost::shared_ptr<const MidiRegion> mr;
+
+       if ((ar = boost::dynamic_pointer_cast<const AudioRegion>(region)) != 0) {
                boost::shared_ptr<Region> ret (new AudioRegion (ar));
+               ret->unlock_property_changes ();
                /* pure copy constructor - no CheckNewRegion emitted */
                return ret;
-       } else if ((mr = boost::dynamic_pointer_cast<MidiRegion>(region)) != 0) {
+       } else if ((mr = boost::dynamic_pointer_cast<const MidiRegion>(region)) != 0) {
                boost::shared_ptr<Region> ret (new MidiRegion (mr));
+               ret->unlock_property_changes ();
                /* pure copy constructor - no CheckNewRegion emitted */
                return ret;
        } else {
@@ -90,41 +94,56 @@ RegionFactory::create (boost::shared_ptr<Region> region)
 }
 
 boost::shared_ptr<Region>
-RegionFactory::create (const Playlist& playlist, boost::shared_ptr<Region> region)
+RegionFactory::create (boost::shared_ptr<AudioRegion> region, nframes_t start, 
+                      nframes_t length, const std::string& name, 
+                      layer_t layer, Region::Flag flags, bool announce)
 {
-       boost::shared_ptr<Crossfade> xfade;
-       boost::shared_ptr<MidiRegion> mr;
-       
-       if ((xfade = boost::dynamic_pointer_cast<Crossfade>(region)) != 0) {
-               boost::shared_ptr<Region> ret (new Crossfade (playlist, xfade));
-               /* pure copy constructor - no CheckNewRegion emitted */
+       return create (boost::static_pointer_cast<Region> (region), start, length, name, layer, flags, announce);
+}
+
+boost::shared_ptr<Region>
+RegionFactory::create (boost::shared_ptr<Region> region, const SourceList& srcs,
+                      const std::string& name, layer_t layer, Region::Flag flags, bool announce)
+
+{
+       boost::shared_ptr<const AudioRegion> other;
+
+       /* used by AudioFilter when constructing a new region that is intended to have nearly
+          identical settings to an original, but using different sources.
+       */
+
+       if ((other = boost::dynamic_pointer_cast<AudioRegion>(region)) != 0) {
+               AudioRegion* ar = new AudioRegion (other, srcs, srcs.front()->length(srcs.front()->timeline_position()), name, layer, flags);
+               boost::shared_ptr<AudioRegion> arp (ar);
+               boost::shared_ptr<Region> ret (boost::static_pointer_cast<Region> (arp));
+               ret->unlock_property_changes ();
+               if (announce) {
+                       CheckNewRegion (ret);
+               }
                return ret;
        } else {
-               fatal << _("programming error: RegionFactory::create(Playlist,Region) called with unknown Region type")
+               fatal << _("programming error: RegionFactory::create() called with unknown Region type")
                      << endmsg;
                /*NOTREACHED*/
                return boost::shared_ptr<Region>();
        }
 }
 
-boost::shared_ptr<Region>
-RegionFactory::create (boost::shared_ptr<AudioRegion> region, nframes_t start, 
-                            nframes_t length, std::string name, 
-                            layer_t layer, Region::Flag flags, bool announce)
-{
-       return create (boost::static_pointer_cast<Region> (region), start, length, name, layer, flags, announce);
-}
-
 boost::shared_ptr<Region>
 RegionFactory::create (Session& session, XMLNode& node, bool yn)
 {
        boost::shared_ptr<Region> r = session.XMLRegionFactory (node, yn);
-       CheckNewRegion (r);
+       r->unlock_property_changes ();
+
+       if (r) {
+               CheckNewRegion (r);
+       }
+
        return r;
 }
        
 boost::shared_ptr<Region> 
-RegionFactory::create (SourceList& srcs, nframes_t start, nframes_t length, const string& name, layer_t layer, Region::Flag flags, bool announce)
+RegionFactory::create (const SourceList& srcs, nframes_t start, nframes_t length, const string& name, layer_t layer, Region::Flag flags, bool announce)
 {
        if (srcs.empty()) {
                return boost::shared_ptr<Region>();
@@ -135,6 +154,7 @@ RegionFactory::create (SourceList& srcs, nframes_t start, nframes_t length, cons
                AudioRegion* ar = new AudioRegion (srcs, start, length, name, layer, flags);
                boost::shared_ptr<AudioRegion> arp (ar);
                boost::shared_ptr<Region> ret (boost::static_pointer_cast<Region> (arp));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }
@@ -145,6 +165,7 @@ RegionFactory::create (SourceList& srcs, nframes_t start, nframes_t length, cons
                MidiRegion* ar = new MidiRegion (srcs, start, length, name, layer, flags);
                boost::shared_ptr<MidiRegion> mrp (ar);
                boost::shared_ptr<Region> ret (boost::static_pointer_cast<Region> (mrp));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }
@@ -155,22 +176,6 @@ RegionFactory::create (SourceList& srcs, nframes_t start, nframes_t length, cons
        return boost::shared_ptr<Region> ();
 }      
 
-boost::shared_ptr<Region> 
-RegionFactory::create (const Playlist& playlist, const XMLNode& node)
-{
-       /* this is a constructor for "dependent" region types.
-          these objects require a playlist so that they can
-          look up the region instances that they depend upon.
-       */
-
-       if (node.name() == Crossfade::node_name()) {
-               boost::shared_ptr<Region> ret (new Crossfade (playlist, node));
-               return ret;
-       }
-
-       return boost::shared_ptr<Region> ();
-}
-
 boost::shared_ptr<Region> 
 RegionFactory::create (SourceList& srcs, const XMLNode& node)
 {
@@ -180,10 +185,12 @@ RegionFactory::create (SourceList& srcs, const XMLNode& node)
 
        if (srcs[0]->type() == DataType::AUDIO) {
                boost::shared_ptr<Region> ret (new AudioRegion (srcs, node));
+               ret->unlock_property_changes ();
                CheckNewRegion (ret);
                return ret;
        } else if (srcs[0]->type() == DataType::MIDI) {
                boost::shared_ptr<Region> ret (new MidiRegion (srcs, node));
+               ret->unlock_property_changes ();
                CheckNewRegion (ret);
                return ret;
        }
@@ -199,12 +206,14 @@ RegionFactory::create (boost::shared_ptr<Source> src, nframes_t start, nframes_t
 
        if ((as = boost::dynamic_pointer_cast<AudioSource>(src)) != 0) {
                boost::shared_ptr<Region> ret (new AudioRegion (as, start, length, name, layer, flags));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }
                return ret;
        } else if ((ms = boost::dynamic_pointer_cast<MidiSource>(src)) != 0) {
                boost::shared_ptr<Region> ret (new MidiRegion (ms, start, length, name, layer, flags));
+               ret->unlock_property_changes ();
                if (announce) {
                        CheckNewRegion (ret);
                }