Continue working on engine functionality.

Timeline/Audio_File.H

@@ -22,7 +22,7 @@
 /* Base class for all audio file library interfaces */
 #include <stdlib.h>
 
-typedef unsigned long nframes_t;
+#include "types.h"
 typedef float sample_t;
 
 #include "Peaks.H"

Timeline/Makefile

@@ -13,6 +13,7 @@ SRCS= \
       Audio_File_SF.C \
       Port.C \
       Disk_Stream.C \
+      Engine.C \
       Loggable.C \
 
 OBJS=$(SRCS:.C=.o)

Timeline/Mutex.H

@@ -0,0 +1,54 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2008 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* 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; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+#pragma once
+
+#include <pthread.h>
+
+class Mutex
+{
+
+    pthread_mutex_t _lock;
+
+public:
+
+    Mutex ( )
+        {
+//            _lock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+        }
+
+    void
+    lock ( void )
+        {
+            pthread_mutex_lock( &_lock );
+        }
+
+    void
+    unlock ( void )
+        {
+            pthread_mutex_unlock( &_lock );
+        }
+
+    int
+    trylock ( void )
+        {
+            return pthread_mutex_trylock( &_lock );
+        }
+
+};

Timeline/Peaks.H

@@ -21,7 +21,7 @@
 
 #include <stdlib.h>
 
-typedef unsigned long nframes_t;
+#include "types.h"
 
 struct Peak {
     float min;

Timeline/Port.H

@@ -23,7 +23,7 @@
 
 typedef float sample_t;
 //typedef jack_nframes_t nframes_t;
-typedef unsigned long nframes_t;
+#include "types.h"
 
 class Port
 {

Timeline/Timeline.C

@@ -17,7 +17,6 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
-
 #include "Timeline.H"
 #include "Tempo_Track.H"
 #include "Time_Track.H"
@@ -597,3 +596,23 @@ Timeline::handle ( int m )
     }
 
 }
+
+
+/**********/
+/* Engine */
+/**********/
+
+/** call process() on each track header */
+nframes_t
+Timeline::process ( nframes_t nframes )
+{
+    for ( int i = tracks->children(); i-- ; )
+    {
+        Track_Header *t = (Track_Header*)tracks->child( i );
+
+        t->process( nframes );
+    }
+
+    /* FIXME: BOGUS */
+    return nframes;
+}

Timeline/Timeline.H

@@ -27,9 +27,12 @@
 
 #include "Scalebar.H"
 
+/* FIXME: this class needs a lot of cleaning up. Too many public
+ * members etc. */
+
 /* #include "Audio_File.H" // just for nframes_t */
 
-typedef unsigned long nframes_t;
+#include "types.h"
 
 #include <math.h>
 #include <assert.h>
@@ -74,8 +77,11 @@ struct Rectangle
 };
 
 
+class Engine;
 
-class Timeline : public Fl_Overlay_Window
+#include "Mutex.H"
+
+class Timeline : public Fl_Overlay_Window, public Mutex
 {
     static void draw_clip ( void * v, int X, int Y, int W, int H );
 
@@ -112,7 +118,6 @@ class Timeline : public Fl_Overlay_Window
 
 public:
 
-
     nframes_t xoffset;
 
     int _yposition;
@@ -139,4 +144,9 @@ public:
 
     void select( const Rectangle &r );
 
+private:
+
+    friend class Engine; // FIXME: only Engine::process() needs to be friended.x
+
+    nframes_t process ( nframes_t nframes );
 };

Timeline/Track.H

@@ -38,6 +38,8 @@ class Region;
 class Track_Widget;
 
 
+#include "types.h"
+
 /* This is the base class for all track types. */
 
 class Track : public Fl_Widget, public Loggable
@@ -124,4 +126,6 @@ public:
     virtual int handle ( int m );
     virtual void draw ( void );
 
+    virtual nframes_t process ( nframes_t nframes ) { return 0; }
+
 };

Timeline/Track_Header.C

@@ -96,6 +96,8 @@ Track_Header::Track_Header ( int X, int Y, int W, int H, const char *L ) :
     _show_all_takes = false;
     _size = 1;
 
+//    diskstream = new Disk_Stream( this );
+
     Fl_Group::size( w(), height() );
 
     Track_Header *o = this;
@@ -276,3 +278,14 @@ Track_Header::add_control( Track *t )
 
     resize();
 }
+
+
+/**********/
+/* Engine */
+/**********/
+
+nframes_t
+Track_Header::process ( nframes_t nframes )
+{
+    return track()->process( nframes );
+}

Timeline/Track_Header.H

@@ -34,6 +34,8 @@
 #include <vector>
 using std::vector;
 
+class Disk_Stream;
+
 class Track_Header : public Fl_Group, public Loggable
 {
 
@@ -71,9 +73,8 @@ public:
     Fl_Pack *control;
     Fl_Pack *takes;
 
-
     vector <Port> output;                                       /* output ports... */
-
+    Disk_Stream *diskstream;
 
     const char *class_name ( void ) { return "Track_Header"; }
 
@@ -262,5 +263,7 @@ public:
             }
         }
 
+
+    nframes_t process ( nframes_t nframes );
 };
 #endif