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Refactor morse and beacon as singleton

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This commit is contained in:
Torsten Dreyer 2011-09-13 20:06:31 +02:00
parent 587895bf2b
commit 9cef27f5ca
17 changed files with 202 additions and 117 deletions
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8
projects/VC90/FlightGear/FlightGear.vcproj
View file

@ -3229,6 +3229,14 @@
RelativePath="..\..\..\src\Sound\sample_queue.hxx"
>
</File>
<File
RelativePath="..\..\..\src\Sound\soundgenerator.cxx"
>
</File>
<File
RelativePath="..\..\..\src\Sound\soundgenerator.hxx"
>
</File>
<File
RelativePath="..\..\..\src\Sound\voice.cxx"
>

6
src/Instrumentation/adf.cxx
View file

@ -17,6 +17,8 @@
#include <Navaids/navlist.hxx>
#include "adf.hxx"
#include <Sound/morse.hxx>
#include <iostream>
#include <string>
@ -110,8 +112,6 @@ ADF::init ()
_sgr = smgr->find("avionics", true);
_sgr->tie_to_listener();
morse.init();
std::ostringstream temp;
temp << _name << _num;
_adf_ident = temp.str();
@ -252,7 +252,7 @@ ADF::search (double frequency_khz, double longitude_rad,
}
SGSoundSample *sound;
sound = morse.make_ident( ident, LO_FREQUENCY );
sound = FGMorse::instance()->make_ident( ident, LO_FREQUENCY );
sound->set_volume(_last_volume = 0);
_sgr->add( sound, _adf_ident );

2
src/Instrumentation/adf.hxx
View file

@ -16,7 +16,6 @@
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
#include <Sound/morse.hxx>
using std::string;
@ -93,7 +92,6 @@ private:
SGVec3d _transmitter_cart;
double _transmitter_range_nm;
FGMorse morse;
int _ident_count;
time_t _last_ident_time;
float _last_volume;

4
src/Instrumentation/kr_87.cxx
View file

@ -36,6 +36,7 @@
#include "kr_87.hxx"
#include <Sound/morse.hxx>
#include <string>
using std::string;
@ -119,7 +120,6 @@ void FGKR_87::init () {
SGSoundMgr *smgr = globals->get_soundmgr();
_sgr = smgr->find("avionics", true);
_sgr->tie_to_listener();
morse.init();
}
@ -534,7 +534,7 @@ void FGKR_87::search() {
_sgr->remove( "adf-ident" );
}
SGSoundSample *sound;
sound = morse.make_ident( trans_ident, LO_FREQUENCY );
sound = FGMorse::instance()->make_ident( trans_ident, LO_FREQUENCY );
sound->set_volume( 0.3 );
_sgr->add( sound, "adf-ident" );

3
src/Instrumentation/kr_87.hxx
View file

@ -32,14 +32,11 @@
#include <simgear/timing/timestamp.hxx>
#include <Navaids/navlist.hxx>
#include <Sound/morse.hxx>
class SGSampleGroup;
class FGKR_87 : public SGSubsystem
{
FGMorse morse;
SGPropertyNode_ptr lon_node;
SGPropertyNode_ptr lat_node;
SGPropertyNode_ptr alt_node;

9
src/Instrumentation/marker_beacon.cxx
View file

@ -34,6 +34,7 @@
#include <Navaids/navlist.hxx>
#include "marker_beacon.hxx"
#include <Sound/beacon.hxx>
#include <string>
using std::string;
@ -120,8 +121,6 @@ FGMarkerBeacon::init ()
_sgr = smgr->find("avionics", true);
_sgr->tie_to_listener();
morse.init();
beacon.init();
blink.stamp();
outer_marker = middle_marker = inner_marker = false;
@ -317,7 +316,7 @@ void FGMarkerBeacon::search()
// cout << "OUTER MARKER" << endl;
if ( last_beacon != OUTER ) {
if ( ! _sgr->exists( current_sound_name ) ) {
SGSoundSample *sound = beacon.get_outer();
SGSoundSample *sound = FGBeacon::instance()->get_outer();
if ( sound ) {
_sgr->add( sound, current_sound_name );
}
@ -336,7 +335,7 @@ void FGMarkerBeacon::search()
// cout << "MIDDLE MARKER" << endl;
if ( last_beacon != MIDDLE ) {
if ( ! _sgr->exists( current_sound_name ) ) {
SGSoundSample *sound = beacon.get_middle();
SGSoundSample *sound = FGBeacon::instance()->get_middle();
if ( sound ) {
_sgr->add( sound, current_sound_name );
}
@ -355,7 +354,7 @@ void FGMarkerBeacon::search()
// cout << "INNER MARKER" << endl;
if ( last_beacon != INNER ) {
if ( ! _sgr->exists( current_sound_name ) ) {
SGSoundSample *sound = beacon.get_inner();
SGSoundSample *sound = FGBeacon::instance()->get_inner();
if ( sound ) {
_sgr->add( sound, current_sound_name );
}

6
src/Instrumentation/marker_beacon.hxx
View file

@ -32,16 +32,10 @@
#include <simgear/math/interpolater.hxx>
#include <simgear/timing/timestamp.hxx>
#include <Sound/beacon.hxx>
#include <Sound/morse.hxx>
class SGSampleGroup;
class FGMarkerBeacon : public SGSubsystem
{
FGBeacon beacon;
FGMorse morse;
SGInterpTable *term_tbl;
SGInterpTable *low_tbl;
SGInterpTable *high_tbl;

7
src/Instrumentation/navradio.cxx
View file

@ -44,6 +44,7 @@
#include <Airports/runways.hxx>
#include <Navaids/navlist.hxx>
#include <Main/util.hxx>
#include <Sound/morse.hxx>
using std::string;
@ -175,8 +176,6 @@ FGNavRadio::init ()
_sgr = smgr->find("avionics", true);
_sgr->tie_to_listener();
morse.init();
SGPropertyNode* node = _radio_node.get();
bus_power_node =
fgGetNode(("/systems/electrical/outputs/" + _name).c_str(), true);
@ -1014,7 +1013,7 @@ void FGNavRadio::audioNavidChanged()
try {
string trans_ident(_navaid->get_trans_ident());
SGSoundSample* sound = morse.make_ident(trans_ident, LO_FREQUENCY);
SGSoundSample* sound = FGMorse::instance()->make_ident(trans_ident, LO_FREQUENCY);
sound->set_volume( 0.3 );
if (!_sgr->add( sound, nav_fx_name )) {
SG_LOG(SG_COCKPIT, SG_WARN, "Failed to add v1-vor-ident sound");
@ -1024,7 +1023,7 @@ void FGNavRadio::audioNavidChanged()
_sgr->remove( dme_fx_name );
}
sound = morse.make_ident( trans_ident, HI_FREQUENCY );
sound = FGMorse::instance()->make_ident( trans_ident, HI_FREQUENCY );
sound->set_volume( 0.3 );
_sgr->add( sound, dme_fx_name );

3
src/Instrumentation/navradio.hxx
View file

@ -26,7 +26,6 @@
#include <Main/fg_props.hxx>
#include "Sound/morse.hxx"
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
@ -41,8 +40,6 @@ typedef SGSharedPtr<FGNavRecord> FGNavRecordPtr;
class FGNavRadio : public SGSubsystem, public SGPropertyChangeListener
{
FGMorse morse;
SGInterpTable *term_tbl;
SGInterpTable *low_tbl;
SGInterpTable *high_tbl;

2
src/Sound/CMakeLists.txt
View file

@ -1,6 +1,7 @@
include(FlightGearComponent)
set(SOURCES
soundgenerator.cxx
beacon.cxx
fg_fx.cxx
morse.cxx
@ -10,6 +11,7 @@ set(SOURCES
)
set(HEADERS
soundgenerator.hxx
beacon.hxx
fg_fx.hxx
morse.hxx

1
src/Sound/Makefile.am
View file

@ -1,6 +1,7 @@
noinst_LIBRARIES = libSound.a
libSound_a_SOURCES = \
soundgenerator.cxx soundgenerator.hxx \
beacon.cxx beacon.hxx \
fg_fx.cxx fg_fx.hxx \
morse.cxx morse.hxx \

13
src/Sound/beacon.cxx
View file

@ -18,8 +18,6 @@
// 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 <stdlib.h>
#include <cstring>
@ -104,3 +102,14 @@ bool FGBeacon::init() {
return true;
}
FGBeacon * FGBeacon::_instance = NULL;
FGBeacon * FGBeacon::instance()
{
if( _instance == NULL ) {
_instance = new FGBeacon();
_instance->init();
}
return _instance;
}

43
src/Sound/beacon.hxx
View file

@ -20,24 +20,17 @@
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _BEACON_HXX
#define _BEACON_HXX
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "soundgenerator.hxx"
#include <simgear/compiler.h>
#include <simgear/sound/soundmgr_openal.hxx>
#include <simgear/structure/SGReferenced.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include "morse.hxx"
// Quoting from http://www.smartregs.com/data/sa326.htm
// Smart REGS Glossary - marker beacon
//
@ -77,35 +70,35 @@
// (See instrument landing system) (Refer to AIM.)
static const int INNER_FREQ = 3000;
static const int MIDDLE_FREQ = 1300;
static const int OUTER_FREQ = 400;
static const int INNER_SIZE = BYTES_PER_SECOND;
static const int MIDDLE_SIZE = (int)(BYTES_PER_SECOND * 60 / 95 );
static const int OUTER_SIZE = BYTES_PER_SECOND;
static const int INNER_DIT_LEN = (int)(BYTES_PER_SECOND / 6.0);
static const int MIDDLE_DIT_LEN = (int)(MIDDLE_SIZE / 3.0);
static const int MIDDLE_DAH_LEN = (int)(MIDDLE_SIZE * 2 / 3.0);
static const int OUTER_DAH_LEN = (int)(BYTES_PER_SECOND / 2.0);
// manages everything we need to know for an individual sound sample
class FGBeacon {
class FGBeacon : public FGSoundGenerator {
private:
static const int INNER_FREQ = 3000;
static const int MIDDLE_FREQ = 1300;
static const int OUTER_FREQ = 400;
static const int INNER_SIZE = BYTES_PER_SECOND;
static const int MIDDLE_SIZE = (int)(BYTES_PER_SECOND * 60 / 95 );
static const int OUTER_SIZE = BYTES_PER_SECOND;
static const int INNER_DIT_LEN = (int)(BYTES_PER_SECOND / 6.0);
static const int MIDDLE_DIT_LEN = (int)(MIDDLE_SIZE / 3.0);
static const int MIDDLE_DAH_LEN = (int)(MIDDLE_SIZE * 2 / 3.0);
static const int OUTER_DAH_LEN = (int)(BYTES_PER_SECOND / 2.0);
SGSharedPtr<SGSoundSample> inner;
SGSharedPtr<SGSoundSample> middle;
SGSharedPtr<SGSoundSample> outer;
// allocate and initialize sound samples
bool init();
static FGBeacon * _instance;
public:
FGBeacon();
~FGBeacon();
// allocate and initialize sound samples
bool init();
static FGBeacon * instance();
SGSoundSample *get_inner() { return inner; }
SGSoundSample *get_middle() { return middle; }

50
src/Sound/morse.cxx
View file

@ -18,7 +18,6 @@
// 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>
@ -79,44 +78,6 @@ 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
@ -270,3 +231,14 @@ 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;
}

29
src/Sound/morse.hxx
View file

@ -18,16 +18,12 @@
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#ifndef _MORSE_HXX
#define _MORSE_HXX
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "soundgenerator.hxx"
#include <simgear/compiler.h>
#include <simgear/sound/soundmgr_openal.hxx>
@ -97,7 +93,7 @@ static const int LO_FREQUENCY = 1020; // AIM 1-1-7 (f) specified in Hz
static const int HI_FREQUENCY = 1350; // AIM 1-1-7 (f) specified in Hz
// manages everything we need to know for an individual sound sample
class FGMorse {
class FGMorse : public FGSoundGenerator {
private:
@ -110,15 +106,18 @@ private:
unsigned char cust_dit[ DIT_SIZE ] ;
unsigned char cust_dah[ DAH_SIZE ] ;
static FGMorse * _instance;
bool cust_init( const int freq );
// allocate and initialize sound samples
bool init();
public:
FGMorse();
~FGMorse();
// allocate and initialize sound samples
bool init();
static FGMorse * instance();
// make a SimpleSound morse code transmission for the specified string
SGSoundSample *make_ident( const string& id,
@ -126,20 +125,6 @@ public:
};
/**
* \relates 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.
* @param buf unsigned char pointer to sound buffer
* @param freq desired frequency of tone
* @param len length of tone within sound
* @param total_len total length of sound (anything more than len is padded
* with silence.
* @param trans_len length of ramp up and ramp down to avoid audio "pop"
*/
void make_tone( unsigned char *buf, int freq,
int len, int total_len, int trans_len );
#endif // _MORSE_HXX

64
src/Sound/soundgenerator.cxx Normal file
View file

@ -0,0 +1,64 @@
// soundgenerator.cxx -- simple sound generation
//
// Written by Curtis Olson, started March 2001.
//
// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
//
// 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; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#include "soundgenerator.hxx"
#include <simgear/constants.h>
FGSoundGenerator::~FGSoundGenerator()
{
}
// 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 FGSoundGenerator::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 ) ;
}
}

67
src/Sound/soundgenerator.hxx Normal file
View file

@ -0,0 +1,67 @@
// soundgenerator.hxx -- simple sound generation
//
// Written by Curtis Olson, started March 2001.
//
// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
//
// 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; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef _FGSOUNDGENERATOR_HXX
#define _FGSOUNDGENERATOR_HXX
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
class FGSoundGenerator {
public:
static const int BYTES_PER_SECOND = 22050;
// static const int BEAT_LENGTH = 240; // milleseconds (5 wpm)
static const int BEAT_LENGTH = 92; // milleseconds (13 wpm)
static const int TRANSITION_BYTES = (int)(0.005 * BYTES_PER_SECOND);
static const int COUNT_SIZE = BYTES_PER_SECOND * BEAT_LENGTH / 1000;
static const int DIT_SIZE = 2 * COUNT_SIZE; // 2 counts
static const int DAH_SIZE = 4 * COUNT_SIZE; // 4 counts
static const int SPACE_SIZE = 3 * COUNT_SIZE; // 3 counts
static const int LO_FREQUENCY = 1020; // AIM 1-1-7 (f) specified in Hz
static const int HI_FREQUENCY = 1350; // AIM 1-1-7 (f) specified in Hz
protected:
/**
* \relates 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.
* @param buf unsigned char pointer to sound buffer
* @param freq desired frequency of tone
* @param len length of tone within sound
* @param total_len total length of sound (anything more than len is padded
* with silence.
* @param trans_len length of ramp up and ramp down to avoid audio "pop"
*/
static void make_tone( unsigned char *buf, int freq,
int len, int total_len, int trans_len );
public:
virtual ~FGSoundGenerator();
};
#endif // _FGSOUNDGENERATOR_HXX