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Move more modern C++ idioms and use std::unique_ptr for moving daat ownership around

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This commit is contained in:
Erik Hofman 2020-03-26 09:54:28 +01:00
parent d65bb58317
commit ad1833a4d5
12 changed files with 96 additions and 152 deletions
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6
simgear/sound/openal_test1.cxx
View File

@ -80,13 +80,13 @@ int main( int argc, char *argv[] )
sglog().setLogLevels( SG_ALL, SG_ALERT );
// initialize OpenAL
ALCdevice *dev = alcOpenDevice(NULL);
ALCdevice *dev = alcOpenDevice(nullptr);
if (!dev) {
SG_LOG( SG_GENERAL, SG_ALERT, "Audio device initialization failed!" );
return EXIT_FAILURE;
}
ALCcontext *context = alcCreateContext(dev, NULL);
ALCcontext *context = alcCreateContext(dev, nullptr);
if (!context) {
SG_LOG( SG_GENERAL, SG_ALERT, "Audio context initialization failed!" );
return EXIT_FAILURE;
@ -164,7 +164,7 @@ int main( int argc, char *argv[] )
sleep(10);
alcMakeContextCurrent(NULL);
alcMakeContextCurrent(nullptr);
alcDestroyContext(context);
alcCloseDevice(dev);

10
simgear/sound/readwav.cxx
View File

@ -46,7 +46,7 @@ namespace
ALfloat frequency;
SGPath path;
Buffer() : data(NULL), format(AL_NONE), length(0), frequency(0.0f) {}
Buffer() : data(nullptr), format(AL_NONE), length(0), frequency(0.0f) {}
~Buffer()
{
@ -119,7 +119,7 @@ namespace
uint8_t *d = (uint8_t *) b->data;
size_t newLength = b->length * 2;
int16_t *buf = (int16_t *) malloc(newLength);
if (buf == NULL)
if (buf == nullptr)
throw sg_exception("malloc failed decoing ULaw WAV file");
for (ALsizei i = 0; i < b->length; i++) {
@ -193,7 +193,7 @@ namespace
size_t blocks = b->length/block_align;
size_t newLength = block_align * blocks * 4;
int16_t *buf = (int16_t *) malloc ( newLength );
if (buf == NULL)
if (buf == nullptr)
throw sg_exception("malloc failed decoing IMA4 WAV file");
int16_t *ptr = buf;
@ -260,7 +260,7 @@ namespace
void loadWavFile(gzFile fd, Buffer* b)
{
assert(b->data == NULL);
assert(b->data == nullptr);
bool found_header = false;
bool compressed = false;
@ -405,7 +405,7 @@ ALvoid* loadWAVFromFile(const SGPath& path, unsigned int& format, ALsizei& size,
}
ALvoid* data = b.data;
b.data = NULL; // don't free when Buffer does out of scope
b.data = nullptr; // don't free when Buffer does out of scope
format = b.format;
block_align = b.block_align;
size = b.length;

36
simgear/sound/sample.cxx
View File

@ -88,40 +88,18 @@ SGSoundSample::SGSoundSample(const char *file, const SGPath& currentDir) :
}
// constructor
SGSoundSample::SGSoundSample( const unsigned char** data,
SGSoundSample::SGSoundSample( std::unique_ptr<unsigned char, decltype(free)*>& data,
int len, int freq, int format )
{
SG_LOG( SG_SOUND, SG_DEBUG, "In memory sounds sample" );
_data = (unsigned char*)*data; *data = NULL;
_data = std::move(data);
set_frequency(freq);
set_format(format);
set_size(len);
}
// constructor
SGSoundSample::SGSoundSample( void** data, int len, int freq, int format ) :
_is_file(false),
_changed(true),
_valid_source(false),
_source(SGSoundMgr::NO_SOURCE),
_valid_buffer(false),
_buffer(SGSoundMgr::NO_BUFFER)
{
SG_LOG( SG_SOUND, SG_DEBUG, "In memory sounds sample" );
_data = (unsigned char*)*data; *data = NULL;
set_frequency(freq);
set_format(format);
set_size(len);
}
// destructor
SGSoundSample::~SGSoundSample() {
if ( _data != NULL ) free(_data);
}
void SGSoundSample::update_pos_and_orientation() {
if (_use_pos_props) {
@ -148,11 +126,3 @@ SGPath SGSoundSample::file_path() const
return SGPath(_refname);
}
void SGSoundSample::free_data()
{
if ( _data != NULL ) {
free( _data );
}
_data = NULL;
}

29
simgear/sound/sample.hxx
View File

@ -255,7 +255,8 @@ public:
* Empty constructor, can be used to read data to the systems
* memory and not to the driver.
*/
SGSoundSample() {};
SGSoundSample() = default;
virtual ~SGSoundSample () = default;
/**
* Constructor
@ -269,20 +270,15 @@ public:
* @param data Pointer to a memory buffer containing this audio sample data
The application may free the data by calling free_data(), otherwise it
will be resident until the class is destroyed. This pointer will be
set to NULL after calling this function.
set to nullptr after calling this function.
* @param len Byte length of array
* @param freq Frequency of the provided data (bytes per second)
* @param format SimGear format id of the data
*/
SGSoundSample( void** data, int len, int freq, int format=SG_SAMPLE_MONO8 );
SGSoundSample( const unsigned char** data, int len, int freq,
SGSoundSample( std::unique_ptr<unsigned char, decltype(free)*>& data,
int len, int freq,
int format = SG_SAMPLE_MONO8 );
/**
* Destructor
*/
virtual ~SGSoundSample ();
/**
* Test if this audio sample configuration has changed since the last call.
* Calling this function will reset the flag so calling it a second
@ -360,25 +356,22 @@ public:
/**
* Set the data associated with this audio sample
* @param data Pointer to a memory block containg this audio sample data.
This pointer will be set to NULL after calling this function.
This pointer will be set to nullptr after calling this function.
*/
inline void set_data( const unsigned char **data ) {
_data = (unsigned char*)*data; *data = NULL;
}
inline void set_data( const void **data ) {
_data = (unsigned char*)*data; *data = NULL;
inline void set_data( std::unique_ptr<unsigned char, decltype(free)*>& data ) {
_data = std::move(data);
}
/**
* Return the data associated with this audio sample.
* @return A pointer to this sound data of this audio sample.
*/
inline void* get_data() const { return _data; }
inline unsigned char* get_data() const { return _data.get(); }
/**
* Free the data associated with this audio sample
*/
void free_data();
inline void free_data() { _data = nullptr; }
/**
* Set the source id of this source
@ -607,7 +600,7 @@ protected:
unsigned int _source = SGSoundMgr::NO_SOURCE;
private:
unsigned char* _data = NULL;
std::unique_ptr<unsigned char, decltype(free)*> _data = { nullptr, free };
// Buffers hold sound data.
bool _valid_buffer = false;

12
simgear/sound/sample_group.cxx
View File

@ -180,12 +180,12 @@ bool SGSampleGroup::exists( const std::string &refname ) {
// return a pointer to the SGSoundSample if the specified sound exists
// in the sound manager system, otherwise return NULL
// in the sound manager system, otherwise return nullptr
SGSoundSample *SGSampleGroup::find( const std::string &refname ) {
auto sample_it = _samples.find( refname );
if ( sample_it == _samples.end() ) {
// sample was not found
return NULL;
return nullptr;
}
return sample_it->second;
@ -241,7 +241,7 @@ bool SGSampleGroup::play( const std::string &refname,
{
SGSoundSample *sample = find( refname );
if ( sample == NULL ) {
if ( sample == nullptr ) {
return false;
}
@ -254,7 +254,7 @@ bool SGSampleGroup::play( const std::string &refname,
bool SGSampleGroup::is_playing( const std::string& refname ) {
SGSoundSample *sample = find( refname );
if ( sample == NULL ) {
if ( sample == nullptr ) {
return false;
}
@ -265,7 +265,7 @@ bool SGSampleGroup::is_playing( const std::string& refname ) {
bool SGSampleGroup::stop( const std::string& refname ) {
SGSoundSample *sample = find( refname );
if ( sample == NULL ) {
if ( sample == nullptr ) {
return false;
}
@ -357,7 +357,7 @@ void SGSampleGroup::update_sample_config( SGSoundSample *sample )
bool SGSampleGroup::testForError(void *p, std::string s)
{
if (p == NULL) {
if (p == nullptr) {
SG_LOG( SG_SOUND, SG_ALERT, "Error (sample group): " << s);
return true;
}

4
simgear/sound/sample_group.hxx
View File

@ -39,7 +39,7 @@
#include "sample.hxx"
typedef std::map < std::string, SGSharedPtr<SGSoundSample> > sample_map;
using sample_map = std::map< std::string, SGSharedPtr<SGSoundSample> >;
class SGSoundMgr;
@ -212,7 +212,7 @@ public:
void tie_to_listener() { _tied_to_listener = true; }
protected:
SGSoundMgr *_smgr = NULL;
SGSoundMgr *_smgr = nullptr;
std::string _refname = "";
bool _active = false;

65
simgear/sound/soundmgr_aeonwave.cxx
View File

@ -48,11 +48,11 @@
// We keep track of the emitters ourselves.
typedef std::map < unsigned int, aax::Emitter > source_map;
using source_map = std::map< unsigned int, aax::Emitter >;
// The AeonWave class keeps track of the buffers, so use a reference instead.
typedef std::map < unsigned int, aax::Buffer& > buffer_map;
typedef std::map < std::string, SGSharedPtr<SGSampleGroup> > sample_group_map;
using buffer_map = std::map< unsigned int, aax::Buffer& >;
using sample_group_map = std::map< std::string, SGSharedPtr<SGSampleGroup> >;
#ifndef NDEBUG
# define TRY(a) if ((a) == 0) printf("%i: %s\n", __LINE__, d->_aax.strerror())
@ -64,14 +64,7 @@ typedef std::map < std::string, SGSharedPtr<SGSampleGroup> > sample_group_map;
class SGSoundMgr::SoundManagerPrivate
{
public:
SoundManagerPrivate() :
_absolute_pos(SGVec3d::zeros()),
_base_pos(SGVec3d::zeros()),
_orientation(SGQuatd::zeros()),
_buffer_id(0),
_source_id(0)
{
}
SoundManagerPrivate() = default;
~SoundManagerPrivate()
{
@ -96,11 +89,11 @@ public:
aax::AeonWave _aax;
aax::Matrix64 _mtx;
SGVec3d _absolute_pos;
SGVec3d _base_pos;
SGQuatd _orientation;
SGVec3d _absolute_pos = SGVec3d::zeros();
SGVec3d _base_pos = SGVec3d::zeros();
SGQuatd _orientation = SGQuatd::zeros();
unsigned int _buffer_id;
unsigned int _buffer_id = 0;
buffer_map _buffers;
aax::Buffer nullBuffer;
aax::Buffer& get_buffer(unsigned int id) {
@ -110,7 +103,7 @@ public:
return nullBuffer;
}
unsigned int _source_id;
unsigned int _source_id = 0;
source_map _sources;
aax::Emitter nullEmitter;
aax::Emitter& get_emitter(unsigned int id) {
@ -229,10 +222,8 @@ void SGSoundMgr::activate()
if ( is_working() ) {
_active = true;
for ( auto current = d->_sample_groups.begin();
current != d->_sample_groups.end(); ++current ) {
SGSampleGroup *sgrp = current->second;
sgrp->activate();
for ( auto current : d->_sample_groups ) {
current.second->activate();
}
}
#endif
@ -243,10 +234,8 @@ void SGSoundMgr::stop()
{
#ifdef ENABLE_SOUND
// first stop all sample groups
for ( auto current = d->_sample_groups.begin();
current != d->_sample_groups.end(); ++ current ) {
SGSampleGroup *sgrp = current->second;
sgrp->stop();
for ( auto current : d->_sample_groups ) {
current.second->stop();
}
d->_buffer_id = 0;
@ -269,10 +258,8 @@ void SGSoundMgr::suspend()
{
#ifdef ENABLE_SOUND
if (is_working()) {
for (auto current = d->_sample_groups.begin();
current != d->_sample_groups.end(); ++current ) {
SGSampleGroup *sgrp = current->second;
sgrp->stop();
for (auto current : d->_sample_groups ) {
current.second->stop();
}
_active = false;
}
@ -283,10 +270,8 @@ void SGSoundMgr::resume()
{
#ifdef ENABLE_SOUND
if (is_working()) {
for ( auto current = d->_sample_groups.begin();
current != d->_sample_groups.end(); ++current ) {
SGSampleGroup *sgrp = current->second;
sgrp->resume();
for ( auto current : d->_sample_groups ) {
current.second->resume();
}
_active = true;
}
@ -302,10 +287,8 @@ void SGSoundMgr::update( double dt )
d->update_pos_and_orientation();
}
for ( auto current = d->_sample_groups.begin();
current != d->_sample_groups.end(); ++current ) {
SGSampleGroup *sgrp = current->second;
sgrp->update(dt);
for ( auto current : d->_sample_groups ) {
current.second->update(dt);
}
if (_changed) {
@ -371,7 +354,7 @@ bool SGSoundMgr::exists( const std::string &refname ) {
// return a pointer to the SGSampleGroup if the specified sound exists
// in the sound manager system, otherwise return NULL
// in the sound manager system, otherwise return nullptr
SGSampleGroup *SGSoundMgr::find( const std::string &refname, bool create ) {
auto sample_grp_it = d->_sample_groups.find( refname );
if ( sample_grp_it == d->_sample_groups.end() ) {
@ -382,10 +365,10 @@ SGSampleGroup *SGSoundMgr::find( const std::string &refname, bool create ) {
return sgrp;
}
else
return NULL;
return nullptr;
}
return sample_grp_it->second;
return sample_grp_it->second.get();
}
@ -695,7 +678,7 @@ vector<std::string> SGSoundMgr::get_available_devices()
bool SGSoundMgr::testForError(void *p, std::string s)
{
if (p == NULL) {
if (p == nullptr) {
SG_LOG( SG_SOUND, SG_ALERT, "Error: " << s);
return true;
}
@ -718,7 +701,7 @@ bool SGSoundMgr::testForError(std::string s, std::string name)
bool SGSoundMgr::is_working() const
{
return ((const void*)d->_aax != NULL ? true : false);
return ((const void*)d->_aax != nullptr ? true : false);
}
const SGQuatd& SGSoundMgr::get_orientation() const

40
simgear/sound/soundmgr_openal.cxx
View File

@ -68,8 +68,8 @@ class SGSoundMgr::SoundManagerPrivate
{
public:
SoundManagerPrivate() :
_device(NULL),
_context(NULL),
_device(nullptr),
_context(nullptr),
_absolute_pos(SGVec3d::zeros()),
_base_pos(SGVec3d::zeros()),
_orientation(SGQuatd::zeros())
@ -173,10 +173,10 @@ void SGSoundMgr::init()
d->_sources_in_use.clear();
d->_sources_in_use.reserve( MAX_SOURCES );
ALCdevice *device = NULL;
ALCdevice *device = nullptr;
const char* devname = _device_name.c_str();
if (_device_name == "")
devname = NULL; // use default device
devname = nullptr; // use default device
else
{
// try non-default device
@ -184,13 +184,13 @@ void SGSoundMgr::init()
}
if ((!devname)||(testForError(device, "Audio device not available, trying default.")) ) {
device = alcOpenDevice(NULL);
device = alcOpenDevice(nullptr);
if (testForError(device, "Default audio device not available.") ) {
return;
}
}
ALCcontext *context = alcCreateContext(device, NULL);
ALCcontext *context = alcCreateContext(device, nullptr);
testForALCError("context creation.");
if ( testForError(context, "Unable to create a valid context.") ) {
alcCloseDevice (device);
@ -204,7 +204,7 @@ void SGSoundMgr::init()
return;
}
if (d->_context != NULL)
if (d->_context != nullptr)
{
SG_LOG(SG_SOUND, SG_ALERT, "context is already assigned");
}
@ -324,8 +324,8 @@ void SGSoundMgr::stop()
_active = false;
alcDestroyContext(d->_context);
alcCloseDevice(d->_device);
d->_context = NULL;
d->_device = NULL;
d->_context = nullptr;
d->_device = nullptr;
_renderer = "unknown";
_vendor = "unknown";
@ -448,7 +448,7 @@ bool SGSoundMgr::exists( const std::string &refname ) {
// return a pointer to the SGSampleGroup if the specified sound exists
// in the sound manager system, otherwise return NULL
// in the sound manager system, otherwise return nullptr
SGSampleGroup *SGSoundMgr::find( const std::string &refname, bool create ) {
auto sample_grp_it = d->_sample_groups.find( refname );
if ( sample_grp_it == d->_sample_groups.end() ) {
@ -459,7 +459,7 @@ SGSampleGroup *SGSoundMgr::find( const std::string &refname, bool create ) {
return sgrp;
}
else
return NULL;
return nullptr;
}
return sample_grp_it->second;
@ -525,7 +525,7 @@ unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample)
if ( !sample->is_valid_buffer() ) {
// sample was not yet loaded or removed again
std::string sample_name = sample->get_sample_name();
void *sample_data = NULL;
void* sample_data = nullptr;
// see if the sample name is already cached
auto buffer_it = d->_buffers.find( sample_name );
@ -797,13 +797,11 @@ bool SGSoundMgr::load( const std::string &samplepath,
unsigned int blocksz;
ALsizei size;
ALsizei freq;
ALvoid *data;
ALfloat freqf;
data = simgear::loadWAVFromFile(samplepath, format, size, freqf, blocksz);
auto data = simgear::loadWAVFromFile(samplepath, format, size, freqf, blocksz);
freq = (ALsizei)freqf;
if (data == NULL) {
if (data == nullptr) {
throw sg_io_exception("Failed to load wav file", sg_location(samplepath));
}
@ -827,10 +825,10 @@ vector<std::string> SGSoundMgr::get_available_devices()
#ifdef ENABLE_SOUND
const ALCchar *s;
if (alcIsExtensionPresent(NULL, "ALC_enumerate_all_EXT") == AL_TRUE) {
s = alcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER);
if (alcIsExtensionPresent(nullptr, "ALC_enumerate_all_EXT") == AL_TRUE) {
s = alcGetString(nullptr, ALC_ALL_DEVICES_SPECIFIER);
} else {
s = alcGetString(NULL, ALC_DEVICE_SPECIFIER);
s = alcGetString(nullptr, ALC_DEVICE_SPECIFIER);
}
if (s) {
@ -851,7 +849,7 @@ vector<std::string> SGSoundMgr::get_available_devices()
bool SGSoundMgr::testForError(void *p, std::string s)
{
if (p == NULL) {
if (p == nullptr) {
SG_LOG( SG_SOUND, SG_ALERT, "Error: " << s);
return true;
}
@ -889,7 +887,7 @@ bool SGSoundMgr::testForALCError(std::string s)
bool SGSoundMgr::is_working() const
{
return (d->_device != NULL);
return (d->_device != nullptr);
}
const SGQuatd& SGSoundMgr::get_orientation() const

4
simgear/sound/soundmgr_openal_private.hxx
View File

@ -63,8 +63,8 @@ struct refUint {
~refUint() {};
};
typedef std::map < std::string, refUint > buffer_map;
typedef std::map < std::string, SGSharedPtr<SGSampleGroup> > sample_group_map;
using buffer_map = std::map < std::string, refUint >;
using sample_group_map = std::map < std::string, SGSharedPtr<SGSampleGroup> >;
inline bool isNaN(float *v) {
return (SGMisc<float>::isNaN(v[0]) || SGMisc<float>::isNaN(v[1]) || SGMisc<float>::isNaN(v[2]));

8
simgear/sound/xmlsound.cxx
View File

@ -150,9 +150,9 @@ SGXmlSound::init( SGPropertyNode *root,
string intern_str = kids[i]->getStringValue("internal", "");
if (intern_str == "dt_play")
volume.intern = &_dt_play;
volume.intern = std::make_shared<double>(_dt_play);
else if (intern_str == "dt_stop")
volume.intern = &_dt_stop;
volume.intern = std::make_shared<double>(_dt_stop);
if ((volume.factor = kids[i]->getDoubleValue("factor", 1.0)) != 0.0)
if (volume.factor < 0.0) {
@ -217,9 +217,9 @@ SGXmlSound::init( SGPropertyNode *root,
string intern_str = kids[i]->getStringValue("internal", "");
if (intern_str == "dt_play")
pitch.intern = &_dt_play;
pitch.intern = std::make_shared<double>(_dt_play);
else if (intern_str == "dt_stop")
pitch.intern = &_dt_stop;
pitch.intern = std::make_shared<double>(_dt_stop);
if ((pitch.factor = kids[i]->getDoubleValue("factor", 1.0)) != 0.0)
if (pitch.factor < 0.0) {

8
simgear/sound/xmlsound.hxx
View File

@ -138,24 +138,24 @@ protected:
enum { LEVEL=0, INVERTED, FLIPFLOP };
using _fn_t = std::function<double(double)>;
typedef struct {
using _snd_prop = struct {
SGSharedPtr<SGExpressiond> expr; // sound system version 2.0
std::shared_ptr<double> intern;
SGPropertyNode_ptr prop;
_fn_t fn;
double *intern;
double factor;
double offset;
double min;
double max;
bool subtract;
} _snd_prop;
};
using _sound_fn_t = std::map <std::string, _fn_t>;
_sound_fn_t _sound_fn;
private:
SGSampleGroup * _sgrp;
SGSharedPtr<SGSampleGroup> _sgrp;
SGSharedPtr<SGSoundSample> _sample;
SGSharedPtr<SGCondition> _condition;