Revive master sound enable switch.

[flightgear.git] / src / Sound / morse.cxx

diff --git a/src/Sound/morse.cxx b/src/Sound/morse.cxx
index 7ae7cac98871672cd553aaca2d2b6ac83e18682e..1563841ab7fee87567a2a4a6e4464e4a7145a367 100644 (file)
--- a/src/Sound/morse.cxx
+++ b/src/Sound/morse.cxx
@@ -18,14 +18,22 @@
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
-// $Id$
 
 
 #include <simgear/constants.h>
 
 #include "morse.hxx"
 
+#include <simgear/sound/sample_openal.hxx>
+
 #include <cstring>
+#include <stdlib.h>
+
+static const char DI = '1';
+static const char DIT = '1';
+static const char DA = '2';
+static const char DAH = '2';
+static const char END = '0';
 
 static const char alphabet[26][4] = {
     { DI, DAH, END, END },     /* A */ 
@@ -79,44 +87,6 @@ FGMorse::~FGMorse() {
 }
 
 
-// Make a tone of specified freq and total_len with trans_len ramp in
-// and out and only the first len bytes with sound, the rest with
-// silence
-void make_tone( unsigned char *buf, int freq, 
-               int len, int total_len, int trans_len )
-{
-    int i, j;
-
-    for ( i = 0; i < trans_len; ++i ) {
-       float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) )
-           * ((double)i / trans_len) / 2.0 + 0.5;
-
-       /* Convert to unsigned byte */
-       buf[ i ] = (unsigned char) ( level * 255.0 ) ;
-    }
-
-    for ( i = trans_len; i < len - trans_len; ++i ) {
-       float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) )
-           / 2.0 + 0.5;
-
-       /* Convert to unsigned byte */
-       buf[ i ] = (unsigned char) ( level * 255.0 ) ;
-    }
-    j = trans_len;
-    for ( i = len - trans_len; i < len; ++i ) {
-       float level = ( sin( (double) i * SGD_2PI / (BYTES_PER_SECOND / freq) ) )
-           * ((double)j / trans_len) / 2.0 + 0.5;
-       --j;
-
-       /* Convert to unsigned byte */
-       buf[ i ] = (unsigned char) ( level * 255.0 ) ;
-    }
-    for ( i = len; i < total_len; ++i ) {
-       buf[ i ] = (unsigned char) ( 0.5 * 255.0 ) ;
-    }
-}
-
-
 // allocate and initialize sound samples
 bool FGMorse::init() {
     // Make Low DIT
@@ -167,7 +137,7 @@ bool FGMorse::cust_init(const int freq ) {
 
 
 // make a SGSoundSample morse code transmission for the specified string
-SGSoundSample *FGMorse::make_ident( const string& id, const int freq ) {
+SGSoundSample *FGMorse::make_ident( const std::string& id, const int freq ) {
 
     char *idptr = (char *)id.c_str();
 
@@ -270,3 +240,14 @@ SGSoundSample *FGMorse::make_ident( const string& id, const int freq ) {
 
     return sample;
 }
+
+FGMorse * FGMorse::_instance = NULL;
+
+FGMorse * FGMorse::instance()
+{
+    if( _instance == NULL ) {
+        _instance = new FGMorse();
+        _instance->init();
+    }
+    return _instance;
+}