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Initial work on making OpenAL private to the sound code.

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This commit is contained in:
James Turner 2012-09-30 19:41:51 +01:00
parent 2fb8999ac2
commit c188f6e3cb
17 changed files with 314 additions and 218 deletions
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6
CMakeLists.txt
View File

@ -74,6 +74,7 @@ option(JPEG_FACTORY "Enable JPEG-factory support" OFF)
option(ENABLE_LIBSVN "Set to ON to build SimGear with libsvnclient support" ON)
option(ENABLE_RTI "Set to ON to build SimGear with RTI support" OFF)
option(ENABLE_TESTS "Set to OFF to disable building SimGear's test applications" ON)
option(ENABLE_SOUND "Set to OFF to disable building SimGear's sound support" ON)
option(SYSTEM_EXPAT "Set to ON to build SimGear using the system libExpat" OFF)
if (MSVC)
@ -134,10 +135,15 @@ set (BOOST_CXX_FLAGS "-DBOOST_MULTI_INDEX_DISABLE_SERIALIZATION -DBOOST_BIMAP_DI
if(SIMGEAR_HEADLESS)
message(STATUS "SimGear mode: HEADLESS")
set(ENABLE_SOUND 0)
else()
message(STATUS "SimGear mode: NORMAL")
find_package(OpenGL REQUIRED)
if (ENABLE_SOUND)
find_package(OpenAL REQUIRED)
endif(ENABLE_SOUND)
find_package(OpenSceneGraph 3.0.0 REQUIRED osgText osgSim osgDB osgParticle osgGA osgUtil)
endif(SIMGEAR_HEADLESS)

1
simgear/simgear_config_cmake.h.in
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@ -20,3 +20,4 @@
#cmakedefine GCC_ATOMIC_BUILTINS_FOUND
#cmakedefine SYSTEM_EXPAT
#cmakedefine ENABLE_SOUND

1
simgear/sound/CMakeLists.txt
View File

@ -16,6 +16,7 @@ set(SOURCES
soundmgr_openal.cxx
xmlsound.cxx
readwav.cxx
soundmgr_openal_private.hxx
)
simgear_scene_component(sound sound "${SOURCES}" "${HEADERS}")

2
simgear/sound/openal_test2.cxx
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@ -10,6 +10,8 @@
#include <simgear/misc/sg_path.hxx>
#include "soundmgr_openal.hxx"
#include "sample_group.hxx"
#include "sample_openal.hxx"
int main( int argc, char *argv[] ) {

3
simgear/sound/openal_test3.cxx
View File

@ -10,7 +10,8 @@
#include <simgear/misc/sg_path.hxx>
#include "soundmgr_openal.hxx"
#include "sample_group.hxx"
#include "sample_openal.hxx"
int main( int argc, char *argv[] ) {
SGSampleGroup *sgr;

5
simgear/sound/openal_test4.cxx
View File

@ -10,7 +10,8 @@
#include <simgear/misc/sg_path.hxx>
#include "soundmgr_openal.hxx"
#include "sample_group.hxx"
#include "sample_openal.hxx"
int main( int argc, char *argv[] ) {
SGSampleQueue *squeue;
@ -31,7 +32,7 @@ int main( int argc, char *argv[] ) {
void *data;
size_t len;
int freq, fmt;
string file = SRC_DIR"/jet.wav";
std::string file = SRC_DIR"/jet.wav";
smgr->load(file, &data, &fmt, &len, &freq);
squeue = new SGSampleQueue( freq, fmt );

4
simgear/sound/sample_group.cxx
View File

@ -25,10 +25,14 @@
#endif
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include "soundmgr_openal.hxx"
#include "soundmgr_openal_private.hxx"
#include "sample_group.hxx"
using std::string;
bool isNaN(float *v) {
return (isnan(v[0]) || isnan(v[1]) || isnan(v[2]));
}

41
simgear/sound/sample_group.hxx
View File

@ -29,17 +29,6 @@
#ifndef _SG_SAMPLE_GROUP_OPENAL_HXX
#define _SG_SAMPLE_GROUP_OPENAL_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#if defined(__APPLE__)
# include <OpenAL/al.h>
#elif defined(OPENALSDK)
# include <al.h>
#else
# include <AL/al.h>
#endif
#include <string>
#include <vector>
@ -54,10 +43,8 @@
#include "sample_openal.hxx"
#include "sample_queue.hxx"
using std::map;
using std::string;
typedef map < string, SGSharedPtr<SGSoundSample> > sample_map;
typedef std::map < std::string, SGSharedPtr<SGSoundSample> > sample_map;
typedef sample_map::iterator sample_map_iterator;
typedef sample_map::const_iterator const_sample_map_iterator;
@ -80,7 +67,7 @@ public:
* @param smgr Pointer to a pre-initialized sound manager class
* @param refname Name of this group for reference purposes.
*/
SGSampleGroup ( SGSoundMgr *smgr, const string &refname );
SGSampleGroup ( SGSoundMgr *smgr, const std::string &refname );
/**
* Destructor
@ -106,28 +93,28 @@ public:
* @param refname Name of this audio sample for reference purposes
* @return return true if successful
*/
bool add( SGSharedPtr<SGSoundSample> sound, const string& refname );
bool add( SGSharedPtr<SGSoundSample> sound, const std::string& refname );
/**
* Remove an audio sample from this group.
* @param refname Reference name of the audio sample to remove
* @return return true if successful
*/
bool remove( const string& refname );
bool remove( const std::string& refname );
/**
* Test if a specified audio sample is registered at this sample group
* @param refname Reference name of the audio sample to test for
* @return true if the specified audio sample exists
*/
bool exists( const string& refname );
bool exists( const std::string& refname );
/**
* Find a specified audio sample in this sample group
* @param refname Reference name of the audio sample to find
* @return A pointer to the SGSoundSample
*/
SGSoundSample *find( const string& refname );
SGSoundSample *find( const std::string& refname );
/**
* Stop all playing samples and set the source id to invalid.
@ -150,14 +137,14 @@ public:
* @param looping Define if the sound should loop continuously
* @return true if the audio sample exsists and is scheduled for playing
*/
bool play( const string& refname, bool looping );
bool play( const std::string& refname, bool looping );
/**
* Request to start playing the referred audio sample looping.
* @param refname Reference name of the audio sample to start playing
* @return true if the audio sample exsists and is scheduled for playing
*/
inline bool play_looped( const string& refname ) {
inline bool play_looped( const std::string& refname ) {
return play( refname, true );
}
@ -166,7 +153,7 @@ public:
* @param refname Reference name of the audio sample to start playing
* @return true if the audio sample exists and is scheduled for playing
*/
inline bool play_once( const string& refname ) {
inline bool play_once( const std::string& refname ) {
return play( refname, false );
}
@ -175,14 +162,14 @@ public:
* @param refname Reference name of the audio sample to test for
* @return True of the specified sound is currently playing
*/
bool is_playing( const string& refname );
bool is_playing( const std::string& refname );
/**
* Request to stop playing the referred audio sample.
* @param refname Reference name of the audio sample to stop
* @return true if the audio sample exists and is scheduled to stop
*/
bool stop( const string& refname );
bool stop( const std::string& refname );
/**
* Set the master volume for this sample group.
@ -223,7 +210,7 @@ public:
protected:
SGSoundMgr *_smgr;
string _refname;
std::string _refname;
bool _active;
private:
@ -239,8 +226,8 @@ private:
sample_map _samples;
std::vector< SGSharedPtr<SGSoundSample> > _removed_samples;
bool testForALError(string s);
bool testForError(void *p, string s);
bool testForALError(std::string s);
bool testForError(void *p, std::string s);
void update_pos_and_orientation();
void update_sample_config( SGSoundSample *sound );

2
simgear/sound/sample_openal.cxx
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@ -36,7 +36,9 @@
#include "soundmgr_openal.hxx"
#include "sample_openal.hxx"
#include "soundmgr_openal_private.hxx"
using std::string;
//
// SGSoundSample

12
simgear/sound/sample_openal.hxx
View File

@ -30,20 +30,20 @@
#ifndef _SG_SAMPLE_HXX
#define _SG_SAMPLE_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <string>
#include <cstdlib>
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/SGReferenced.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include <simgear/math/SGMath.hxx>
class SGPath;
#ifndef AL_FORMAT_MONO8
#define AL_FORMAT_MONO8 0x1100
#endif
/**
* manages everything we need to know for an individual audio sample
*/

2
simgear/sound/sample_queue.cxx
View File

@ -35,7 +35,9 @@
#include "soundmgr_openal.hxx"
#include "sample_queue.hxx"
#include "soundmgr_openal_private.hxx"
using std::string;
//
// SGSampleQueue

1
simgear/sound/sample_queue.hxx
View File

@ -36,7 +36,6 @@
#include <vector>
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/SGReferenced.hxx>
#include <simgear/structure/SGSharedPtr.hxx>

276
simgear/sound/soundmgr_openal.cxx
View File

@ -33,9 +33,14 @@
#include <algorithm>
#include <cstring>
#include <boost/foreach.hpp>
#include "soundmgr_openal.hxx"
#include "readwav.hxx"
#include "soundmgr_openal_private.hxx"
#include "sample_group.hxx"
#include <simgear/sg_inlines.h>
#include <simgear/structure/exception.hxx>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sg_path.hxx>
@ -43,9 +48,6 @@
using std::string;
using std::vector;
#if 0
extern bool isNaN(float *v);
#endif
#define MAX_SOURCES 128
@ -54,6 +56,69 @@ extern bool isNaN(float *v);
# define ALC_ALL_DEVICES_SPECIFIER 0x1013
#endif
class SGSoundMgr::SoundManagerPrivate
{
public:
SoundManagerPrivate() :
_device(NULL),
_context(NULL),
_absolute_pos(SGVec3d::zeros()),
_base_pos(SGVec3d::zeros()),
_orientation(SGQuatd::zeros())
{
}
void init()
{
_at_up_vec[0] = 0.0; _at_up_vec[1] = 0.0; _at_up_vec[2] = -1.0;
_at_up_vec[3] = 0.0; _at_up_vec[4] = 1.0; _at_up_vec[5] = 0.0;
}
void update_pos_and_orientation()
{
/**
* Description: ORIENTATION is a pair of 3-tuples representing the
* 'at' direction vector and 'up' direction of the Object in
* Cartesian space. AL expects two vectors that are orthogonal to
* each other. These vectors are not expected to be normalized. If
* one or more vectors have zero length, implementation behavior
* is undefined. If the two vectors are linearly dependent,
* behavior is undefined.
*
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
*/
SGVec3d sgv_at = _orientation.backTransform(-SGVec3d::e3());
SGVec3d sgv_up = _orientation.backTransform(SGVec3d::e2());
_at_up_vec[0] = sgv_at[0];
_at_up_vec[1] = sgv_at[1];
_at_up_vec[2] = sgv_at[2];
_at_up_vec[3] = sgv_up[0];
_at_up_vec[4] = sgv_up[1];
_at_up_vec[5] = sgv_up[2];
_absolute_pos = _base_pos;
}
ALCdevice *_device;
ALCcontext *_context;
std::vector<ALuint> _free_sources;
std::vector<ALuint> _sources_in_use;
SGVec3d _absolute_pos;
SGVec3d _base_pos;
SGQuatd _orientation;
// Orientation of the listener.
// first 3 elements are "at" vector, second 3 are "up" vector
ALfloat _at_up_vec[6];
sample_group_map _sample_groups;
buffer_map _buffers;
};
//
// Sound Manager
//
@ -63,18 +128,14 @@ SGSoundMgr::SGSoundMgr() :
_active(false),
_changed(true),
_volume(0.0),
_device(NULL),
_context(NULL),
_absolute_pos(SGVec3d::zeros()),
_offset_pos(SGVec3d::zeros()),
_base_pos(SGVec3d::zeros()),
_geod_pos(SGGeod::fromCart(SGVec3d::zeros())),
_velocity(SGVec3d::zeros()),
_orientation(SGQuatd::zeros()),
_bad_doppler(false),
_renderer("unknown"),
_vendor("unknown")
{
d.reset(new SoundManagerPrivate);
}
// destructor
@ -83,7 +144,7 @@ SGSoundMgr::~SGSoundMgr() {
if (is_working())
stop();
_sample_groups.clear();
d->_sample_groups.clear();
}
// initialize the sound manager
@ -97,10 +158,10 @@ void SGSoundMgr::init() {
SG_LOG( SG_SOUND, SG_INFO, "Initializing OpenAL sound manager" );
_free_sources.clear();
_free_sources.reserve( MAX_SOURCES );
_sources_in_use.clear();
_sources_in_use.reserve( MAX_SOURCES );
d->_free_sources.clear();
d->_free_sources.reserve( MAX_SOURCES );
d->_sources_in_use.clear();
d->_sources_in_use.reserve( MAX_SOURCES );
ALCdevice *device = NULL;
const char* devname = _device_name.c_str();
@ -133,18 +194,17 @@ void SGSoundMgr::init() {
return;
}
if (_context != NULL)
if (d->_context != NULL)
{
SG_LOG(SG_SOUND, SG_ALERT, "context is already assigned");
}
_context = context;
_device = device;
_at_up_vec[0] = 0.0; _at_up_vec[1] = 0.0; _at_up_vec[2] = -1.0;
_at_up_vec[3] = 0.0; _at_up_vec[4] = 1.0; _at_up_vec[5] = 0.0;
d->_context = context;
d->_device = device;
d->init();
alListenerf( AL_GAIN, 0.0f );
alListenerfv( AL_ORIENTATION, _at_up_vec );
alListenerfv( AL_ORIENTATION, d->_at_up_vec );
alListenerfv( AL_POSITION, SGVec3f::zeros().data() );
alListenerfv( AL_VELOCITY, SGVec3f::zeros().data() );
@ -167,9 +227,11 @@ void SGSoundMgr::init() {
alGenSources(1, &source);
error = alGetError();
if ( error == AL_NO_ERROR ) {
_free_sources.push_back( source );
d->_free_sources.push_back( source );
} else {
SG_LOG(SG_SOUND, SG_INFO, "allocating source failed:" << i);
break;
}
else break;
}
_vendor = (const char *)alGetString(AL_VENDOR);
@ -182,7 +244,7 @@ void SGSoundMgr::init() {
_bad_doppler = true;
}
if (_free_sources.size() == 0) {
if (d->_free_sources.empty()) {
SG_LOG(SG_SOUND, SG_ALERT, "Unable to grab any OpenAL sources!");
}
}
@ -206,8 +268,9 @@ void SGSoundMgr::reinit()
void SGSoundMgr::activate() {
if ( is_working() ) {
_active = true;
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
sample_group_map_iterator sample_grp_current = d->_sample_groups.begin();
sample_group_map_iterator sample_grp_end = d->_sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
SGSampleGroup *sgrp = sample_grp_current->second;
sgrp->activate();
@ -219,39 +282,39 @@ void SGSoundMgr::activate() {
void SGSoundMgr::stop() {
// first stop all sample groups
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
sample_group_map_iterator sample_grp_current = d->_sample_groups.begin();
sample_group_map_iterator sample_grp_end = d->_sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
SGSampleGroup *sgrp = sample_grp_current->second;
sgrp->stop();
}
// clear all OpenAL sources
for (unsigned int i=0; i<_free_sources.size(); i++) {
ALuint source = _free_sources[i];
BOOST_FOREACH(ALuint source, d->_free_sources) {
alDeleteSources( 1 , &source );
testForALError("SGSoundMgr::stop: delete sources");
}
_free_sources.clear();
d->_free_sources.clear();
// clear any OpenAL buffers before shutting down
buffer_map_iterator buffers_current = _buffers.begin();
buffer_map_iterator buffers_end = _buffers.end();
buffer_map_iterator buffers_current = d->_buffers.begin();
buffer_map_iterator buffers_end = d->_buffers.end();
for ( ; buffers_current != buffers_end; ++buffers_current ) {
refUint ref = buffers_current->second;
ALuint buffer = ref.id;
alDeleteBuffers(1, &buffer);
testForALError("SGSoundMgr::stop: delete buffers");
}
_buffers.clear();
_sources_in_use.clear();
d->_buffers.clear();
d->_sources_in_use.clear();
if (is_working()) {
_active = false;
alcDestroyContext(_context);
alcCloseDevice(_device);
_context = NULL;
_device = NULL;
alcDestroyContext(d->_context);
alcCloseDevice(d->_device);
d->_context = NULL;
d->_device = NULL;
_renderer = "unknown";
_vendor = "unknown";
@ -260,8 +323,8 @@ void SGSoundMgr::stop() {
void SGSoundMgr::suspend() {
if (is_working()) {
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
sample_group_map_iterator sample_grp_current = d->_sample_groups.begin();
sample_group_map_iterator sample_grp_end = d->_sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
SGSampleGroup *sgrp = sample_grp_current->second;
sgrp->stop();
@ -272,8 +335,8 @@ void SGSoundMgr::suspend() {
void SGSoundMgr::resume() {
if (is_working()) {
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
sample_group_map_iterator sample_grp_current = d->_sample_groups.begin();
sample_group_map_iterator sample_grp_end = d->_sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
SGSampleGroup *sgrp = sample_grp_current->second;
sgrp->resume();
@ -285,14 +348,14 @@ void SGSoundMgr::resume() {
// run the audio scheduler
void SGSoundMgr::update( double dt ) {
if (_active) {
alcSuspendContext(_context);
alcSuspendContext(d->_context);
if (_changed) {
update_pos_and_orientation();
d->update_pos_and_orientation();
}
sample_group_map_iterator sample_grp_current = _sample_groups.begin();
sample_group_map_iterator sample_grp_end = _sample_groups.end();
sample_group_map_iterator sample_grp_current = d->_sample_groups.begin();
sample_group_map_iterator sample_grp_end = d->_sample_groups.end();
for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
SGSampleGroup *sgrp = sample_grp_current->second;
sgrp->update(dt);
@ -305,7 +368,7 @@ if (isNaN(toVec3f(_absolute_pos).data())) printf("NaN in listener position\n");
if (isNaN(_velocity.data())) printf("NaN in listener velocity\n");
#endif
alListenerf( AL_GAIN, _volume );
alListenerfv( AL_ORIENTATION, _at_up_vec );
alListenerfv( AL_ORIENTATION, d->_at_up_vec );
// alListenerfv( AL_POSITION, toVec3f(_absolute_pos).data() );
SGQuatd hlOr = SGQuatd::fromLonLat( _geod_pos );
@ -324,21 +387,21 @@ if (isNaN(_velocity.data())) printf("NaN in listener velocity\n");
_changed = false;
}
alcProcessContext(_context);
alcProcessContext(d->_context);
}
}
// add a sample group, return true if successful
bool SGSoundMgr::add( SGSampleGroup *sgrp, const string& refname )
{
sample_group_map_iterator sample_grp_it = _sample_groups.find( refname );
if ( sample_grp_it != _sample_groups.end() ) {
sample_group_map_iterator sample_grp_it = d->_sample_groups.find( refname );
if ( sample_grp_it != d->_sample_groups.end() ) {
// sample group already exists
return false;
}
if (_active) sgrp->activate();
_sample_groups[refname] = sgrp;
d->_sample_groups[refname] = sgrp;
return true;
}
@ -347,13 +410,13 @@ bool SGSoundMgr::add( SGSampleGroup *sgrp, const string& refname )
// remove a sound effect, return true if successful
bool SGSoundMgr::remove( const string &refname )
{
sample_group_map_iterator sample_grp_it = _sample_groups.find( refname );
if ( sample_grp_it == _sample_groups.end() ) {
sample_group_map_iterator sample_grp_it = d->_sample_groups.find( refname );
if ( sample_grp_it == d->_sample_groups.end() ) {
// sample group was not found.
return false;
}
_sample_groups.erase( sample_grp_it );
d->_sample_groups.erase( sample_grp_it );
return true;
}
@ -361,21 +424,16 @@ bool SGSoundMgr::remove( const string &refname )
// return true of the specified sound exists in the sound manager system
bool SGSoundMgr::exists( const string &refname ) {
sample_group_map_iterator sample_grp_it = _sample_groups.find( refname );
if ( sample_grp_it == _sample_groups.end() ) {
// sample group was not found.
return false;
}
return true;
sample_group_map_iterator sample_grp_it = d->_sample_groups.find( refname );
return ( sample_grp_it != d->_sample_groups.end() );
}
// return a pointer to the SGSampleGroup if the specified sound exists
// in the sound manager system, otherwise return NULL
SGSampleGroup *SGSoundMgr::find( const string &refname, bool create ) {
sample_group_map_iterator sample_grp_it = _sample_groups.find( refname );
if ( sample_grp_it == _sample_groups.end() ) {
sample_group_map_iterator sample_grp_it = d->_sample_groups.find( refname );
if ( sample_grp_it == d->_sample_groups.end() ) {
// sample group was not found.
if (create) {
SGSampleGroup* sgrp = new SGSampleGroup(this, refname);
@ -393,8 +451,7 @@ SGSampleGroup *SGSoundMgr::find( const string &refname, bool create ) {
void SGSoundMgr::set_volume( float v )
{
_volume = v;
if (_volume > 1.0) _volume = 1.0;
if (_volume < 0.0) _volume = 0.0;
SG_CLAMP_RANGE(_volume, 0.0f, 1.0f);
_changed = true;
}
@ -411,10 +468,10 @@ unsigned int SGSoundMgr::request_source()
{
unsigned int source = NO_SOURCE;
if (_free_sources.size() > 0) {
source = _free_sources.back();
_free_sources.pop_back();
_sources_in_use.push_back(source);
if (!d->_free_sources.empty()) {
source = d->_free_sources.back();
d->_free_sources.pop_back();
d->_sources_in_use.push_back(source);
}
else
SG_LOG( SG_SOUND, SG_BULK, "Sound manager: No more free sources available!\n");
@ -427,8 +484,8 @@ void SGSoundMgr::release_source( unsigned int source )
{
vector<ALuint>::iterator it;
it = std::find(_sources_in_use.begin(), _sources_in_use.end(), source);
if ( it != _sources_in_use.end() ) {
it = std::find(d->_sources_in_use.begin(), d->_sources_in_use.end(), source);
if ( it != d->_sources_in_use.end() ) {
ALint result;
alGetSourcei( source, AL_SOURCE_STATE, &result );
@ -438,8 +495,8 @@ void SGSoundMgr::release_source( unsigned int source )
alSourcei( source, AL_BUFFER, 0 ); // detach the associated buffer
testForALError("release_source");
_free_sources.push_back( source );
_sources_in_use.erase( it );
d->_free_sources.push_back( source );
d->_sources_in_use.erase( it );
}
}
@ -453,8 +510,8 @@ unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample)
void *sample_data = NULL;
// see if the sample name is already cached
buffer_map_iterator buffer_it = _buffers.find( sample_name );
if ( buffer_it != _buffers.end() ) {
buffer_map_iterator buffer_it = d->_buffers.find( sample_name );
if ( buffer_it != d->_buffers.end() ) {
buffer_it->second.refctr++;
buffer = buffer_it->second.id;
sample->set_buffer( buffer );
@ -496,7 +553,7 @@ unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample)
if ( !testForALError("buffer add data") ) {
sample->set_buffer(buffer);
_buffers[sample_name] = refUint(buffer);
d->_buffers[sample_name] = refUint(buffer);
}
}
@ -514,8 +571,8 @@ void SGSoundMgr::release_buffer(SGSoundSample *sample)
if ( !sample->is_queue() )
{
string sample_name = sample->get_sample_name();
buffer_map_iterator buffer_it = _buffers.find( sample_name );
if ( buffer_it == _buffers.end() ) {
buffer_map_iterator buffer_it = d->_buffers.find( sample_name );
if ( buffer_it == d->_buffers.end() ) {
// buffer was not found
return;
}
@ -525,36 +582,12 @@ void SGSoundMgr::release_buffer(SGSoundSample *sample)
if (buffer_it->second.refctr == 0) {
ALuint buffer = buffer_it->second.id;
alDeleteBuffers(1, &buffer);
_buffers.erase( buffer_it );
d->_buffers.erase( buffer_it );
testForALError("release buffer");
}
}
}
void SGSoundMgr::update_pos_and_orientation() {
/**
* Description: ORIENTATION is a pair of 3-tuples representing the
* 'at' direction vector and 'up' direction of the Object in
* Cartesian space. AL expects two vectors that are orthogonal to
* each other. These vectors are not expected to be normalized. If
* one or more vectors have zero length, implementation behavior
* is undefined. If the two vectors are linearly dependent,
* behavior is undefined.
*
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
*/
SGVec3d sgv_at = _orientation.backTransform(-SGVec3d::e3());
SGVec3d sgv_up = _orientation.backTransform(SGVec3d::e2());
_at_up_vec[0] = sgv_at[0];
_at_up_vec[1] = sgv_at[1];
_at_up_vec[2] = sgv_at[2];
_at_up_vec[3] = sgv_up[0];
_at_up_vec[4] = sgv_up[1];
_at_up_vec[5] = sgv_up[2];
_absolute_pos = _base_pos;
}
bool SGSoundMgr::load(const string &samplepath, void **dbuf, int *fmt,
size_t *sz, int *frq )
{
@ -567,9 +600,7 @@ bool SGSoundMgr::load(const string &samplepath, void **dbuf, int *fmt,
ALvoid *data;
ALfloat freqf;
// ignore previous errors to prevent the system from halting on silly errors
alGetError();
alcGetError(_device);
data = simgear::loadWAVFromFile(samplepath, format, size, freqf );
freq = (ALsizei)freqf;
if (data == NULL) {
@ -640,12 +671,43 @@ bool SGSoundMgr::testForALError(string s)
bool SGSoundMgr::testForALCError(string s)
{
ALCenum error;
error = alcGetError(_device);
error = alcGetError(d->_device);
if (error != ALC_NO_ERROR) {
SG_LOG( SG_SOUND, SG_ALERT, "ALC Error (sound manager): "
<< alcGetString(_device, error) << " at "
<< alcGetString(d->_device, error) << " at "
<< s);
return true;
}
return false;
}
bool SGSoundMgr::is_working() const
{
return (d->_device != NULL);
}
const SGQuatd& SGSoundMgr::get_orientation() const
{
return d->_orientation;
}
void SGSoundMgr::set_orientation( const SGQuatd& ori )
{
d->_orientation = ori;
_changed = true;
}
const SGVec3d& SGSoundMgr::get_position() const
{
return d->_absolute_pos;
}
void SGSoundMgr::set_position( const SGVec3d& pos, const SGGeod& pos_geod )
{
d->_base_pos = pos; _geod_pos = pos_geod; _changed = true;
}
SGVec3f SGSoundMgr::get_direction() const
{
return SGVec3f(d->_at_up_vec[0], d->_at_up_vec[1], d->_at_up_vec[2]);
}

77
simgear/sound/soundmgr_openal.hxx
View File

@ -38,40 +38,15 @@
#include <string>
#include <vector>
#include <map>
#if defined(__APPLE__)
# include <OpenAL/al.h>
# include <OpenAL/alc.h>
#elif defined(OPENALSDK)
# include <al.h>
# include <alc.h>
#else
# include <AL/al.h>
# include <AL/alc.h>
#endif
#include <memory> // for std::auto_ptr
#include <simgear/compiler.h>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/math/SGMathFwd.hxx>
#include <simgear/math/SGMath.hxx>
#include "sample_group.hxx"
struct refUint {
unsigned int refctr;
ALuint id;
refUint() { refctr = 0; id = (ALuint)-1; };
refUint(ALuint i) { refctr = 1; id = i; };
~refUint() {};
};
typedef std::map < std::string, refUint > buffer_map;
typedef buffer_map::iterator buffer_map_iterator;
typedef buffer_map::const_iterator const_buffer_map_iterator;
typedef std::map < std::string, SGSharedPtr<SGSampleGroup> > sample_group_map;
typedef sample_group_map::iterator sample_group_map_iterator;
typedef sample_group_map::const_iterator const_sample_group_map_iterator;
// forward decls
class SGSampleGroup;
class SGSoundSample;
/**
* Manage a collection of SGSampleGroup instances
@ -102,7 +77,7 @@ public:
* Test is the sound manager is in a working condition.
* @return true is the sound manager is working
*/
inline bool is_working() const { return (_device != NULL); }
bool is_working() const;
/**
* Set the sound manager to a working condition.
@ -142,15 +117,13 @@ public:
* @param refname Reference name of the sample group to find
* @return A pointer to the SGSampleGroup
*/
SGSampleGroup *find( const string& refname, bool create = false );
SGSampleGroup *find( const std::string& refname, bool create = false );
/**
* Set the Cartesian position of the sound manager.
* @param pos OpenAL listener position
*/
void set_position( const SGVec3d& pos, const SGGeod& pos_geod ) {
_base_pos = pos; _geod_pos = pos_geod; _changed = true;
}
void set_position( const SGVec3d& pos, const SGGeod& pos_geod );
void set_position_offset( const SGVec3d& pos ) {
_offset_pos = pos; _changed = true;
@ -161,7 +134,7 @@ public:
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right
* @return OpenAL listener position
*/
SGVec3d& get_position() { return _absolute_pos; }
const SGVec3d& get_position() const;
/**
* Set the velocity vector (in meters per second) of the sound manager
@ -183,24 +156,20 @@ public:
* Set the orientation of the sound manager
* @param ori Quaternation containing the orientation information
*/
void set_orientation( const SGQuatd& ori ) {
_orientation = ori; _changed = true;
}
void set_orientation( const SGQuatd& ori );
/**
* Get the orientation of the sound manager
* @return Quaternation containing the orientation information
*/
inline const SGQuatd& get_orientation() { return _orientation; }
const SGQuatd& get_orientation() const;
/**
* Get the direction vector of the sound manager
* This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
* @return Look-at direction of the OpenAL listener
*/
SGVec3f get_direction() {
return SGVec3f(_at_up_vec[0], _at_up_vec[1], _at_up_vec[2]);
}
SGVec3f get_direction() const;
enum {
NO_SOURCE = (unsigned int)-1,
@ -270,7 +239,7 @@ public:
* @param freq Pointer to a vairable that gets the sample frequency in Herz
* @return true if succesful, false on error
*/
bool load(const string &samplepath, void **data, int *format,
bool load(const std::string &samplepath, void **data, int *format,
size_t *size, int *freq );
/**
@ -285,34 +254,21 @@ public:
const std::string& get_renderer() { return _renderer; }
private:
class SoundManagerPrivate;
/// private implementation object
std::auto_ptr<SoundManagerPrivate> d;
bool _active;
bool _changed;
float _volume;
ALCdevice *_device;
ALCcontext *_context;
// Position of the listener.
SGVec3d _absolute_pos;
SGVec3d _offset_pos;
SGVec3d _base_pos;
SGGeod _geod_pos;
// Velocity of the listener.
SGVec3d _velocity;
// Orientation of the listener.
// first 3 elements are "at" vector, second 3 are "up" vector
SGQuatd _orientation;
ALfloat _at_up_vec[6];
sample_group_map _sample_groups;
buffer_map _buffers;
std::vector<ALuint> _free_sources;
std::vector<ALuint> _sources_in_use;
bool _bad_doppler;
std::string _renderer;
std::string _vendor;
@ -322,7 +278,6 @@ private:
bool testForALCError(std::string s);
bool testForError(void *p, std::string s);
void update_pos_and_orientation();
void update_sample_config( SGSampleGroup *sound );
};

66
simgear/sound/soundmgr_openal_private.hxx Normal file
View File

@ -0,0 +1,66 @@
// soundmgr_openal_prviate.hxx -- Implementation details of the soung manager
//
// Sound manager initially written by David Findlay
// <david_j_findlay@yahoo.com.au> 2001
//
// C++-ified by Curtis Olson, started March 2001.
// Modified for the new SoundSystem by Erik Hofman, October 2009
//
// Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
// Copyright (C) 2009 Erik Hofman <erik@ehofman.com>
//
// 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.
//
// $Id$
#ifndef _SG_SOUNDMGR_OPENAL_PRIVATE_HXX
#define _SG_SOUNDMGR_OPENAL_PRIVATE_HXX 1
#include <string>
#include <vector>
#include <map>
#if defined(__APPLE__)
# include <OpenAL/al.h>
# include <OpenAL/alc.h>
#elif defined(OPENALSDK)
# include <al.h>
# include <alc.h>
#else
# include <AL/al.h>
# include <AL/alc.h>
#endif
struct refUint {
unsigned int refctr;
ALuint id;
refUint() { refctr = 0; id = (ALuint)-1; };
refUint(ALuint i) { refctr = 1; id = i; };
~refUint() {};
};
typedef std::map < std::string, refUint > buffer_map;
typedef buffer_map::iterator buffer_map_iterator;
typedef buffer_map::const_iterator const_buffer_map_iterator;
typedef std::map < std::string, SGSharedPtr<SGSampleGroup> > sample_group_map;
typedef sample_group_map::iterator sample_group_map_iterator;
typedef sample_group_map::const_iterator const_sample_group_map_iterator;
#endif // _SG_SOUNDMGR_OPENAL_PRIVATE_HXX

7
simgear/sound/xmlsound.cxx
View File

@ -25,6 +25,9 @@
# include <simgear_config.h>
#endif
#include "xmlsound.hxx"
#include <simgear/compiler.h>
#include <string.h>
@ -35,8 +38,10 @@
#include <simgear/structure/exception.hxx>
#include <simgear/misc/sg_path.hxx>
#include "xmlsound.hxx"
#include "sample_group.hxx"
#include "sample_openal.hxx"
using std::string;
// static double _snd_lin(double v) { return v; }
static double _snd_inv(double v) { return (v == 0) ? 1e99 : 1/v; }

14
simgear/sound/xmlsound.hxx
View File

@ -29,18 +29,20 @@
#ifndef _SG_SOUND_HXX
#define _SG_SOUND_HXX 1
#ifndef __cplusplus
# error This library requires C++
#endif
#include <vector>
#include <string>
#include <simgear/compiler.h>
#include <simgear/props/propsfwd.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
#include "sample_group.hxx"
#include "sample_openal.hxx"
// forward decls
class SGSampleGroup;
class SGSoundSample;
class SGCondition;
class SGPath;
static const double MAX_TRANSIT_TIME = 0.1; // 100 ms.
@ -144,7 +146,7 @@ private:
SGPropertyNode_ptr _property;
bool _active;
string _name;
std::string _name;
int _mode;
double _prev_value;
double _dt_play;