Make mute and solo buttons work.

Timeline/Playback_DS.C

@@ -213,11 +213,9 @@ Playback_DS::process ( nframes_t nframes )
             /* FIXME: we need to resync somehow */
         }
 
-/*             /\* testing. *\/ */
-/*         FILE *fp = fopen( "testing.au", "a" ); */
-/*         fwrite( buf, block_size, 1, fp ); */
-/*         fclose( fp ); */
-
+        /* TODO: figure out a way to stop IO while muted without losing sync */
+        if ( _th->mute() || ( Track::soloing() && ! _th->solo() ) )
+            buffer_fill_with_silence( (sample_t*)buf, nframes );
     }
 
     block_processed();

Timeline/Track.C

@@ -30,6 +30,8 @@
 #include "../FL/Fl_Sometimes_Input.H"
 #include <FL/fl_ask.H>
 
+int Track::_soloing = 0;
+
 void
 Track::cb_input_field ( Fl_Widget *w, void *v )
 {
@@ -57,14 +59,26 @@ void
 Track::cb_button ( Fl_Widget *w )
 {
 
-    printf( "FIXME: inform mixer here\n" );
     if ( w == record_button )
     {
-        /* FIXME: wrong place for this! */
-        if ( record_button->value() )
-            record_ds->start( transport->frame );
+
+/*         /\* FIXME: wrong place for this! *\/ */
+/*         if ( record_button->value() ) */
+/*             record_ds->start( transport->frame ); */
+/*         else */
+/*             record_ds->stop( transport->frame ); */
+
+    }
+    if ( w == mute_button )
+    {
+
+    }
+    if ( w == solo_button )
+    {
+        if ( solo_button->value() )
+            ++_soloing;
         else
-            record_ds->stop( transport->frame );
+            --_soloing;
     }
     else
         if ( w == take_menu )

Timeline/Track.H

@@ -54,9 +54,11 @@ public:
     Track ( const char *L, int channels=1 );
     ~Track ( );
 
+    static bool soloing ( void ) { return _soloing; }
+
 private:
 
-//    Sequence * _track;
+    static int _soloing;
 
     char *_name;
 

Timeline/dsp.C

@@ -20,6 +20,7 @@
 /* General DSP related functions. */
 
 #include "dsp.h"
+#include "string.h" // for memset.
 
 /* TODO: these functions are all targets for optimization (SSE?) */
 
@@ -87,3 +88,10 @@ buffer_deinterleave_one_channel ( sample_t *dst, sample_t *src, int channel, int
         src += channels;
     }
 }
+
+
+void
+buffer_fill_with_silence ( sample_t *buf, nframes_t nframes )
+{
+    memset( buf, 0, nframes * sizeof( sample_t ) );
+}

Timeline/dsp.h

@@ -28,3 +28,4 @@ void buffer_mix_with_gain ( sample_t *dst, sample_t *src, nframes_t nframes, flo
 void buffer_interleave_one_channel ( sample_t *dst, sample_t *src, int channel, int channels, nframes_t nframes );
 void buffer_interleave_one_channel_and_mix ( sample_t *dst, sample_t *src, int channel, int channels, nframes_t nframes );
 void buffer_deinterleave_one_channel ( sample_t *dst, sample_t *src, int channel, int channels, nframes_t nframes );
+void buffer_fill_with_silence ( sample_t *buf, nframes_t nframes );