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-\r
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-# End Source File\r
-# Begin Source File\r
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-SOURCE=.\simgear\timing\sg_time.cxx\r
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-!IF "$(CFG)" == "SimGear - Win32 Release"\r
-\r
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-!ENDIF \r
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-# End Source File\r
-# Begin Source File\r
-\r
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-!IF "$(CFG)" == "SimGear - Win32 Release"\r
-\r
-# PROP Intermediate_Dir "Release\Lib_sgtiming"\r
-\r
-!ELSEIF "$(CFG)" == "SimGear - Win32 Debug"\r
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-# Begin Source File\r
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-SOURCE=.\simgear\timing\timezone.cxx\r
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-\r
-# PROP Intermediate_Dir "Release\Lib_sgtiming"\r
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-# PROP Intermediate_Dir "Debug\Lib_sgtiming"\r
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-# End Source File\r
-# End Group\r
-# Begin Group "Lib_sgxml"\r
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-# PROP Default_Filter ""\r
-# Begin Source File\r
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-SOURCE=.\simgear\xml\asciitab.h\r
-\r
-!IF "$(CFG)" == "SimGear - Win32 Release"\r
-\r
-# PROP Intermediate_Dir "Release\Lib_sgxml"\r
-\r
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-\r
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-\r
-# PROP Intermediate_Dir "Release\Lib_sgxml"\r
-\r
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-\r
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-\r
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-\r
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-\r
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-\r
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-\r
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-!IF "$(CFG)" == "SimGear - Win32 Release"\r
-\r
-# PROP Intermediate_Dir "Release\Lib_sgxml"\r
-\r
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-\r
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-\r
-# PROP Intermediate_Dir "Release\Lib_sgxml"\r
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-\r
-# PROP Intermediate_Dir "Release\Lib_sgxml"\r
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-# End Source File\r
-# End Group\r
-# Begin Source File\r
-\r
-SOURCE=.\simgear\simgear_config.h.vc5\r
-\r
-!IF "$(CFG)" == "SimGear - Win32 Release"\r
-\r
-# Begin Custom Build - Creating config.h\r
-InputPath=.\simgear\simgear_config.h.vc5\r
-\r
-".\simgear\simgear_config.h" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"\r
- copy .\simgear\simgear_config.h.vc5 .\simgear\simgear_config.h\r
-\r
-# End Custom Build\r
-\r
-!ELSEIF "$(CFG)" == "SimGear - Win32 Debug"\r
-\r
-# Begin Custom Build - Creating config.h\r
-InputPath=.\simgear\simgear_config.h.vc5\r
-\r
-".\simgear\simgear_config.h" : $(SOURCE) "$(INTDIR)" "$(OUTDIR)"\r
- copy .\simgear\simgear_config.h.vc5 .\simgear\simgear_config.h\r
-\r
-# End Custom Build\r
-\r
-!ENDIF\r
-\r
-# End Source File\r
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+++ /dev/null
-Microsoft Developer Studio Workspace File, Format Version 6.00\r
-# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!\r
-\r
-###############################################################################\r
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-Project: "SimGear"=".\SimGear.dsp" - Package Owner=<4>\r
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-{{{\r
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-{{{\r
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-{{{\r
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-\r
-###############################################################################\r
-\r
dnl check for some default libraries
AC_SEARCH_LIBS(cos, m)
+AC_SEARCH_LIBS(clock_gettime, rt)
base_LIBS="$LIBS"
#define MIN_PLIB_VERSION 185
int main() {
- int major, minor, micro;
-
if ( PLIB_VERSION < MIN_PLIB_VERSION ) {
return -1;
}
//
#ifdef __APPLE__
+# ifdef __GNUC__
+# if ( __GNUC__ > 3 ) || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 3 )
inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
-#else
+# else
+ // any C++ header file undefines isinf and isnan
+ // so this should be included before <iostream>
+ // the functions are STILL in libm (libSystem on mac os x)
+extern "C" int (isnan)(double);
+extern "C" int (isinf)(double);
+# endif
+# else
+inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
+# endif
+#endif
+
+#if defined (__FreeBSD__)
+# if __FreeBSD_version < 500000
+ extern "C" {
+ inline int isnan(double r) { return !(r <= 0 || r >= 0); }
+ }
+# endif
+#endif
+
+#if defined (__CYGWIN__)
+# include <ieeefp.h> // isnan
+#endif
+#if defined(__MINGW32__)
+# define isnan(x) _isnan(x)
#endif
/** Nautical Miles to Radians */
#define SG_RAD_TO_NM 3437.7467707849392526
-/** Miles per second to Knots */
+/** meters per second to Knots */
#define SG_MPS_TO_KT 1.9438444924406046432
-/** Knots to Miles per second */
+/** Knots to meters per second */
#define SG_KT_TO_MPS 0.5144444444444444444
/** Feet per second to Knots */
/** Knots to Feet per second */
#define SG_KT_TO_FPS 1.6878098571011956874
-/** Miles per second to Miles per hour */
+/** meters per second to Miles per hour */
#define SG_MPS_TO_MPH 2.2369362920544020312
-/** Miles per hour to Miles per second */
+/** meetrs per hour to Miles per second */
#define SG_MPH_TO_MPS 0.44704
/** Meters per second to Kilometers per hour */
#define SG_MPS_TO_KMH 3.6
-/** Kilometers per hour to Miles per second */
+/** Kilometers per hour to meters per second */
#define SG_KMH_TO_MPS 0.2777777777777777778
/** Pascal to Inch Mercury */
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/math/point3d.hxx>
#include <simgear/math/polar3d.hxx>
-#include <simgear/sound/soundmgr_openal.hxx>
+#include <simgear/sound/sample_group.hxx>
#include <simgear/scene/sky/cloudfield.hxx>
#include <simgear/scene/sky/newcloud.hxx>
#include <simgear/props/props.hxx>
lightning_enable_state(false),
elapsed_time(0.0),
dt(0.0),
- soundMgr(NULL),
+ sampleGroup(NULL),
snd_active(false),
snd_dist(0.0),
min_time_before_lt(0.0),
}
SGEnviro::~SGEnviro(void) {
+ if (sampleGroup) delete sampleGroup;
+
// OSGFIXME
return;
list_of_lightning::iterator iLightning;
}
-void SGEnviro::set_soundMgr(SGSoundMgr *mgr) {
- soundMgr = mgr;
+void SGEnviro::set_sampleGroup(SGSampleGroup *sgr) {
+ sampleGroup = sgr;
}
void SGEnviro::drawPrecipitation(double rain_norm, double snow_norm, double hail_norm, double pitch, double roll, double heading, double hspeed) {
top[PY] = alt;
top[PZ] = 0;
lt_build_tree_branch(0, top, 1.0, 50, top[PY] / 8.0);
- if( ! sgEnviro.soundMgr )
+ if( ! sgEnviro.sampleGroup )
return;
Point3D start( sgEnviro.last_lon*SG_DEGREES_TO_RADIANS, sgEnviro.last_lat*SG_DEGREES_TO_RADIANS, 0.0 );
Point3D dest( lon*SG_DEGREES_TO_RADIANS, lat*SG_DEGREES_TO_RADIANS, 0.0 );
double ax = 0.0, ay = 0.0;
ax = cos(course) * dist;
ay = sin(course) * dist;
- SGSharedPtr<SGSoundSample> snd = soundMgr->find("thunder");
+ SGSharedPtr<SGSoundSample> snd = sampleGroup->find("thunder");
if( snd ) {
- ALfloat pos[3]={ax, ay, -sgEnviro.last_alt };
- snd->set_source_pos(pos);
+ SGVec3d pos = SGVec3d(ax, ay, -sgEnviro.last_alt);
+ snd->set_position(pos);
snd->play_once();
}
}
} else {
- if( !soundMgr->is_playing("thunder") ) {
+ if( !sampleGroup->is_playing("thunder") ) {
snd_active = false;
snd_playing = false;
}
using std::string;
class SGLightning;
-class SGSoundMgr;
+class SGSampleGroup;
/**
* Simulate some echo on a weather radar.
sgVec4 fog_color;
sgMat4 transform;
double last_lon, last_lat, last_alt;
- SGSoundMgr *soundMgr;
+ SGSampleGroup *sampleGroup;
bool snd_active, snd_playing;
double snd_timer, snd_wait, snd_pos_lat, snd_pos_lon, snd_dist;
double min_time_before_lt;
* Forward the sound manager instance to be able to play samples.
* @param mgr a running sound manager
*/
- void set_soundMgr(SGSoundMgr *mgr);
+ void set_sampleGroup(SGSampleGroup *sgr);
void setFOV( float w, float h );
void getFOV( float &w, float &h );
#include <simgear/compiler.h>
#include <simgear/constants.h>
#include <simgear/math/sg_types.hxx>
+#include <simgear/math/point3d.hxx>
#include <simgear/bucket/newbucket.hxx>
#include <stdio.h>
double Y = cart(1);
double Z = cart(2);
double XXpYY = X*X+Y*Y;
+ if( XXpYY + Z*Z < 25 ) {
+ // This function fails near the geocenter region, so catch that special case here.
+ // Define the innermost sphere of small radius as earth center and return the
+ // coordinates 0/0/-EQURAD. It may be any other place on geoide's surface,
+ // the Northpole, Hawaii or Wentorf. This one was easy to code ;-)
+ geod.setLongitudeRad( 0.0 );
+ geod.setLongitudeRad( 0.0 );
+ geod.setElevationM( -EQURAD );
+ return;
+ }
+
double sqrtXXpYY = sqrt(XXpYY);
double p = XXpYY*ra2;
double q = Z*Z*(1-e2)*ra2;
#include <string>
#include <vector>
-#include <simgear/math/point3d.hxx>
+class Point3D;
using std::vector;
using std::string;
#include "strutils.hxx"
+using std::string;
+using std::vector;
+
namespace simgear {
namespace strutils {
#include <simgear/compiler.h>
#include <string>
-
#include <vector>
-using std::vector;
-
#include <cstdlib>
-using std::string;
namespace simgear {
- namespace strutils {
+ namespace strutils {
// /**
// * atof() wrapper for "string" type
* @param s String to strip.
* @return The stripped string.
*/
- string lstrip( const string& s );
- string rstrip( const string& s );
- string strip( const string& s );
+ std::string lstrip( const std::string& s );
+ std::string rstrip( const std::string& s );
+ std::string strip( const std::string& s );
/**
* Split a string into a words using 'sep' as the delimiter string.
* resulting in at most maxsplit+1 words.
* @return Array of words.
*/
- vector<string>
- split( const string& s,
+ std::vector<std::string>
+ split( const std::string& s,
const char* sep = 0,
int maxsplit = 0 );
-
- } // end namespace strutils
+
+ } // end namespace strutils
} // end namespace simgear
#endif // STRUTILS_H
#include "texcoord.hxx"
+#include <simgear/math/point3d.hxx>
// using std::cout;
// using std::endl;
#include <osg/Transform>
#include <simgear/debug/logstream.hxx>
+#include <simgear/math/SGMath.hxx>
#include <simgear/math/sg_random.h>
#include <simgear/misc/sg_path.hxx>
#include <simgear/misc/sgstream.hxx>
#include <osgDB/ReadFile>
#include <osgDB/SharedStateManager>
+#include <simgear/math/SGMath.hxx>
#include <simgear/scene/material/Effect.hxx>
#include <simgear/scene/material/EffectGeode.hxx>
#include <simgear/scene/util/SGSceneFeatures.hxx>
bool operator() (const CloudShaderGeometry::SortData::SortItem& lhs,
const CloudShaderGeometry::SortData::SortItem& rhs) const
{
- return lhs.depth < rhs.depth;
+ return lhs.depth > rhs.depth;
}
};
}
itr != end;
++itr) {
const CloudSprite& t = _cloudsprites[itr->idx];
- GLfloat ua1[3] = { (GLfloat)t.texture_index_x/varieties_x,
- (GLfloat)t.texture_index_y/varieties_y,
- t.width };
- GLfloat ua2[3] = { (GLfloat)t.height,
- t.shade,
+ GLfloat ua1[3] = { (GLfloat) t.texture_index_x/varieties_x,
+ (GLfloat) t.texture_index_y/varieties_y,
+ (GLfloat) t.width };
+ GLfloat ua2[3] = { (GLfloat) t.height,
+ (GLfloat) t.shade,
(GLfloat) t.cloud_height };
extensions->glVertexAttrib3fv(USR_ATTR_1, ua1 );
extensions->glVertexAttrib3fv(USR_ATTR_2, ua2 );
float s, float cull, float cloud_height)
{
// Only add the sprite if it is further than the cull distance to all other sprites
+ // except for the center sprite.
for (CloudShaderGeometry::CloudSpriteList::iterator iter = _cloudsprites.begin();
iter != _cloudsprites.end();
++iter)
{
- if (distSqr(iter->position, p) < cull) {
+ if ((iter != _cloudsprites.begin()) &&
+ (distSqr(iter->position, p) < cull)) {
// Too close - cull it
return;
}
}
+
_cloudsprites.push_back(CloudSprite(p, tx, ty, w, h, s, cloud_height));
}
// The value is squared as we use vector calculations.
float cull_distance_squared = min_sprite_height * min_sprite_height * 0.1f;
- // The number of sprites we actually used is a function of the (user-controlled) density
- int n_sprites = num_sprites * sprite_density;
+ // The number of sprites we actually use is a function of the (user-controlled) density
+ int n_sprites = num_sprites * sprite_density * (0.5 + sg_random());
for (int i = 0; i < n_sprites; i++)
{
// Determine the position of the sprite. Rather than being completely random,
// we place them on the surface of a distorted sphere. However, we place
- // the first and second sprites on the top and bottom, and the third in the
- // center of the sphere (and at maximum size) to ensure good coverage and
- // reduce the chance of there being "holes" in our cloud.
+ // the first sprite in the center of the sphere (and at maximum size) to
+ // ensure good coverage and reduce the chance of there being "holes" in our
+
float x, y, z;
-
+
if (i == 0) {
- x = 0;
- y = 0;
- z = height * 0.5f;
- } else if (i == 1) {
- x = 0;
- y = 0;
- z = - height * 0.5f;
- } else if (i == 2) {
x = 0;
y = 0;
z = 0;
double elev = sg_random() * SGD_PI;
x = width * cos(theta) * 0.5f * sin(elev);
y = width * sin(theta) * 0.5f * sin(elev);
- z = height * cos(elev) * 0.5f;
+ z = height * cos(elev) * 0.5f;
}
// Determine the height and width as scaling factors on the minimum size (used to create the quad)
float sprite_width = 1.0f + sg_random() * (max_sprite_width - min_sprite_width) / min_sprite_width;
float sprite_height = 1.0f + sg_random() * (max_sprite_height - min_sprite_height) / min_sprite_height;
-
- if (i == 2) {
+
+ // Sprites are never taller than square.
+ if (sprite_height * min_sprite_height > sprite_width * min_sprite_width)
+ {
+ sprite_height = sprite_width * min_sprite_width / min_sprite_height;
+ }
+
+ if (i == 0) {
// The center sprite is always maximum size to fill up any holes.
sprite_width = 1.0f + (max_sprite_width - min_sprite_width) / min_sprite_width;
sprite_height = 1.0f + (max_sprite_height - min_sprite_height) / min_sprite_height;
}
-
- // Determine the sprite texture indexes;
+
+ // Determine the sprite texture indexes.
int index_x = (int) floor(sg_random() * num_textures_x);
if (index_x == num_textures_x) { index_x--; }
-
- int index_y = (int) floor(sg_random() * num_textures_y);
+
+ // The y index depends on the positing of the sprite within the cloud.
+ // This allows cloud designers to have particular sprites for the base
+ // and tops of the cloud.
+ int index_y = (int) floor((z / height + 0.5f) * num_textures_y);
if (index_y == num_textures_y) { index_y--; }
sg->addSprite(SGVec3f(x, y, z),
#include <osg/Texture2D>
#include <osgDB/ReadFile>
+#include <simgear/math/SGMath.hxx>
#include <simgear/misc/PathOptions.hxx>
#include <simgear/screen/colors.hxx>
#include <simgear/scene/model/model.hxx>
double angle = st.gst * 15; // degrees
double angleRad = SGMiscd::deg2rad(angle);
- dome->reposition( st.zero_elev, st.alt, st.lon, st.lat, st.spin );
+ SGVec3f zero_elev, view_up;
+ double lon, lat, alt;
+
+ SGGeod geodZeroViewPos = SGGeod::fromGeodM(st.pos_geod, 0);
+ zero_elev = toVec3f( SGVec3d::fromGeod(geodZeroViewPos) );
+
+ // calculate the scenery up vector
+ SGQuatd hlOr = SGQuatd::fromLonLat(st.pos_geod);
+ view_up = toVec3f(hlOr.backTransform(-SGVec3d::e3()));
+
+ // viewer location
+ lon = st.pos_geod.getLongitudeRad();
+ lat = st.pos_geod.getLatitudeRad();
+ alt = st.pos_geod.getElevationM();
+
+ dome->reposition( zero_elev, alt, lon, lat, st.spin );
osg::Matrix m = osg::Matrix::rotate(angleRad, osg::Vec3(0, 0, -1));
- m.postMultTranslate(toOsg(st.view_pos));
+ m.postMultTranslate(toOsg(st.pos));
_ephTransform->setMatrix(m);
double sun_ra = eph.getSunRightAscension();
double sun_dec = eph.getSunDeclination();
- oursun->reposition( sun_ra, sun_dec, st.sun_dist, st.lat, st.alt, st.sun_angle );
+ oursun->reposition( sun_ra, sun_dec, st.sun_dist, lat, alt, st.sun_angle );
double moon_ra = eph.getMoonRightAscension();
double moon_dec = eph.getMoonDeclination();
for ( unsigned i = 0; i < cloud_layers.size(); ++i ) {
if ( cloud_layers[i]->getCoverage() != SGCloudLayer::SG_CLOUD_CLEAR ) {
- cloud_layers[i]->reposition( st.zero_elev, st.view_up,
- st.lon, st.lat, st.alt, dt );
+ cloud_layers[i]->reposition( zero_elev, view_up, lon, lat, alt, dt);
} else
cloud_layers[i]->getNode()->setAllChildrenOff();
}
#include <osg/Switch>
#include <simgear/ephemeris/ephemeris.hxx>
+#include <simgear/math/SGMath.hxx>
#include <simgear/scene/sky/cloud.hxx>
#include <simgear/scene/sky/dome.hxx>
typedef struct {
- SGVec3f view_pos, zero_elev, view_up;
- double lon, lat, alt, spin;
+ SGVec3d pos;
+ SGGeod pos_geod;
+ SGQuatd ori;
+ double spin;
double gst;
double sun_dist;
double moon_dist;
#ifndef SG_LIGHT_BIN_HXX
#define SG_LIGHT_BIN_HXX
+#include <simgear/math/SGMath.hxx>
+
class SGLightBin {
public:
struct Light {
#include <simgear/compiler.h>
-#include <osg/GL>
+#include <osg/Image>
+#include <osgDB/WriteFile>
#include "screen-dump.hxx"
}
-// dump the screen buffer to a ppm file
+// dump the screen buffer to a png file
bool sg_glDumpWindow(const char *filename, int win_width, int win_height) {
- GLubyte *buffer;
- bool result;
-
- buffer = (GLubyte *) malloc(win_width*win_height*RGBA);
-
- // read window contents from color buffer with glReadPixels
- glFinish();
- glReadPixels(0, 0, win_width, win_height,
- GL_RGBA, GL_UNSIGNED_BYTE, buffer);
- result = sg_glWritePPMFile( filename, buffer, win_width, win_height,
- GL_RGBA );
- free(buffer);
-
- return result;
+ osg::ref_ptr<osg::Image> img(new osg::Image);
+ img->readPixels(0,0, win_width, win_height, GL_RGB, GL_UNSIGNED_BYTE);
+ osgDB::writeImageFile(*img, filename);
+ return true;
}
//
// $Id$
+#ifndef SG_SCREEN_DUMP_HXX
+#define SG_SCREEN_DUMP_HXX
+
#include <simgear/compiler.h>
#include <osg/GL>
/**
- * Dump the screen buffer to a ppm file.
+ * Dump the screen buffer to a PNG file.
* @param filename name of file
* @param win_width width of our opengl window
* @param win_height height of our opengl window
*/
bool sg_glWritePPMFile( const char *filename, GLubyte *buffer, int win_width,
int win_height, int mode);
+
+#endif // of SG_SCREEN_DUMP_HXX
noinst_HEADERS =
include_HEADERS = \
+ sample_group.hxx \
sample_openal.hxx \
soundmgr_openal.hxx \
xmlsound.hxx
libsgsound_a_SOURCES = \
+ sample_group.cxx \
sample_openal.cxx \
soundmgr_openal.cxx \
xmlsound.cxx
-#noinst_PROGRAMS = openal_test1 openal_test2
-
-#openal_test1_SOURCES = openal_test1.cxx
-#openal_test2_SOURCES = openal_test2.cxx
-
-#openal_test1_LDADD = \
-# $(top_builddir)/simgear/debug/libsgdebug.a \
-# $(openal_LIBS)
-
-#openal_test2_LDADD = \
-# libsgsound.a \
-# $(top_builddir)/simgear/debug/libsgdebug.a \
-# $(top_builddir)/simgear/misc/libsgmisc.a \
-# $(top_builddir)/simgear/structure/libsgstructure.a \
-# $(openal_LIBS) \
-# -lOpenThreads
+check_PROGRAMS = openal_test1 openal_test2 openal_test3
+
+openal_test1_SOURCES = openal_test1.cxx
+openal_test2_SOURCES = openal_test2.cxx
+openal_test3_SOURCES = openal_test3.cxx
+
+openal_test1_LDADD = \
+ $(top_builddir)/simgear/debug/libsgdebug.a \
+ $(openal_LIBS)
+
+openal_test2_LDADD = \
+ libsgsound.a \
+ $(top_builddir)/simgear/structure/libsgstructure.a \
+ $(top_builddir)/simgear/timing/libsgtiming.a \
+ $(top_builddir)/simgear/debug/libsgdebug.a \
+ $(top_builddir)/simgear/misc/libsgmisc.a \
+ $(top_builddir)/simgear/math/libsgmath.a \
+ $(openal_LIBS)
+
+openal_test3_LDADD = \
+ libsgsound.a \
+ $(top_builddir)/simgear/structure/libsgstructure.a \
+ $(top_builddir)/simgear/timing/libsgtiming.a \
+ $(top_builddir)/simgear/debug/libsgdebug.a \
+ $(top_builddir)/simgear/misc/libsgmisc.a \
+ $(top_builddir)/simgear/math/libsgmath.a \
+ $(openal_LIBS) -lstdc++
INCLUDES = -I$(top_srcdir) -DSRC_DIR=\"$(top_srcdir)/simgear/sound\"
--- /dev/null
+
+All code in this directory uses the OpenAL coordinate system for maximum
+useablity. The OpenAL coordinate system is equal to that of OpenGL with the
+main difference that objects behind the viewer can still be heard:
+ - positive x is to the right
+ - positive y is upwards
+ - positive z is towards the back of the viewer/listener
+
+see: http://www.falloutsoftware.com/tutorials/gl/cartesian.gif
+
+All positions are in cartesian space with a unit length of one meter.
+
+Velocities are three tuples indicating speed and direction in the same space
+as positions do (so they are not in the models local space).
+
+
+There is one SoundMgr that handles multiple SoundGroup classes.
+Each SoundGroup class handles multiple SoundSample classes.
+
+A SoundSample class defines the properties of each individual sound like
+pitch, volume, position, orientation, sound cone paramters, etc. This
+class can be created all over the code but *has* to be assigned to a
+SampelGroup before you can hear it. Current sample groups are "atc",
+"avionics" and "fx" for the master airplane effects. The position of a
+SoundSample is relative to (0,0,0) of the model and hence relative to
+the base position of the SampleGroup.
+
+A SampleGroup class has to be assigned to the SoundManager to be heard
+and holds data of a group of samples (maybe 'sample cloud' might be a
+good description). This class has to be created for each individual
+model that can produce one or more sounds. The SampleGroup class can be
+altered by modifying it's volume, position and orientation.
+Repositioning this class also means repositioning all it's associated
+samples. Altering it's orientation also means repositioning the absolute
+(real world) position (and orientation) of the associated sound samples.
+
+The SoundMaganer can be repositioned which basically means moving the
+listener around. It's also possible to alter the listener orientation en
+velocity with this class, together with the master volume.
+
# include <OpenAL/al.h>
# include <OpenAL/alc.h>
# include <OpenAL/alut.h>
+#elif defined(OPENALSDK)
+# include <al.h>
+# include <alc.h>
+# include <AL/alut.h>
#else
# include <AL/al.h>
# include <AL/alc.h>
ALCdevice *dev;
ALCcontext *context;
+ alutInit(&argc, argv);
+ sglog().setLogLevels( SG_ALL, SG_ALERT );
+
// initialize OpenAL
if ( (dev = alcOpenDevice( NULL )) != NULL
&& ( context = alcCreateContext( dev, NULL )) != NULL ) {
alSourcePlay( source );
sleep(10);
+ alutExit();
return 0;
}
#include <stdio.h>
-#ifdef __MINGW32__
-// This is broken, but allows the file to compile without a POSIX
-// environment.
-static unsigned int sleep(unsigned int secs) { return 0; }
+#ifdef _WIN32
+#include <windows.h>
+#define sleep(x) Sleep(x*1000)
#else
-#include <unistd.h> // sleep()
+#include <unistd.h>
#endif
-#include "sample_openal.hxx"
+#include <simgear/debug/logstream.hxx>
+#include <simgear/misc/sg_path.hxx>
+
#include "soundmgr_openal.hxx"
+SGGeod pos = SGGeod::fromDeg(0,0);
int main( int argc, char *argv[] ) {
- SGSoundMgr sm;
+ SGSampleGroup *sgr;
+ SGSoundMgr *smgr;
+
+ smgr = new SGSoundMgr;
+
+ smgr->bind();
+ smgr->init();
+ sgr = smgr->find("default", true);
+ smgr->set_volume(0.9);
+ smgr->set_position( SGVec3d::fromGeod(pos), pos );
+ smgr->activate();
- SGSoundSample sample1( SRC_DIR, "jet.wav" );
- sample1.set_volume(0.5);
- sample1.set_volume(0.2);
- sample1.play_looped();
+ SGSoundSample *sample1 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample1->set_volume(1.0);
+ sample1->set_pitch(1.0);
+ sample1->play_looped();
+ sgr->add(sample1, "sound1");
+ smgr->update(1.0);
+ printf("playing sample1\n");
sleep(1);
- SGSoundSample sample2( SRC_DIR, "jet.wav" );
- sample2.set_volume(0.5);
- sample2.set_pitch(0.4);
- sample2.play_looped();
+ SGSoundSample *sample2 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample2->set_volume(0.5);
+ sample2->set_pitch(0.4);
+ sample2->play_looped();
+ sgr->add(sample2, "sound2");
+ smgr->update(1.0);
+ printf("playing sample2\n");
sleep(1);
- SGSoundSample sample3( SRC_DIR, "jet.wav" );
- sample3.set_volume(0.5);
- sample3.set_pitch(0.8);
- sample3.play_looped();
+ SGSoundSample *sample3 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample3->set_volume(0.5);
+ sample3->set_pitch(0.8);
+ sample3->play_looped();
+ sgr->add(sample3, "sound3");
+ smgr->update(1.0);
+ printf("playing sample3\n");
sleep(1);
- SGSoundSample sample4( SRC_DIR, "jet.wav" );
- sample4.set_volume(0.5);
- sample4.set_pitch(1.2);
- sample4.play_looped();
+ SGSoundSample *sample4 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample4->set_volume(0.5);
+ sample4->set_pitch(1.2);
+ sample4->play_looped();
+ sgr->add(sample4, "sound4");
+ smgr->update(1.0);
+ printf("playing sample4\n");
sleep(1);
- SGSoundSample sample5( SRC_DIR, "jet.wav" );
- sample5.set_volume(0.5);
- sample5.set_pitch(1.6);
- sample5.play_looped();
+ SGSoundSample *sample5 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample5->set_volume(0.5);
+ sample5->set_pitch(1.6);
+ sample5->play_looped();
+ sgr->add(sample5, "sound5");
+ smgr->update(1.0);
+ printf("playing sample5\n");
sleep(1);
- SGSoundSample sample6( SRC_DIR, "jet.wav" );
- sample6.set_volume(0.5);
- sample6.set_pitch(2.0);
- sample6.play_looped();
+ SGSoundSample *sample6 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample6->set_volume(0.5);
+ sample6->set_pitch(2.0);
+ sample6->play_looped();
+ sgr->add(sample6, "sound6");
+ smgr->update(1.0);
+ printf("playing sample6\n");
+ sleep(1);
+
+ for (int i=0; i<10; i++) {
+ sleep(1);
+ smgr->update(1);
+ }
+
+ sgr->stop("sound1");
+ sgr->stop("sound2");
+ sgr->stop("sound3");
+ sleep(0.5);
+ smgr->update(0.5);
+ sgr->stop("sound4");
+ sgr->stop("sound5");
+ sgr->stop("sound6");
+ smgr->update(1);
sleep(1);
- sleep(10);
+ smgr->unbind();
+ sleep(2);
+ delete smgr;
}
--- /dev/null
+#include <stdio.h>
+#ifdef _WIN32
+#include <windows.h>
+#define sleep(x) Sleep(x*1000)
+#else
+#include <unistd.h>
+#endif
+
+#include <simgear/debug/logstream.hxx>
+#include <simgear/misc/sg_path.hxx>
+
+#include "soundmgr_openal.hxx"
+
+
+int main( int argc, char *argv[] ) {
+ SGSampleGroup *sgr;
+ SGSoundMgr *smgr;
+ SGGeod pos;
+
+ smgr = new SGSoundMgr;
+
+ smgr->bind();
+ smgr->init();
+ sgr = smgr->find("default", true);
+ smgr->set_volume(0.9);
+ smgr->activate();
+
+ printf("default position and orientation\n");
+ SGSoundSample *sample1 = new SGSoundSample( SRC_DIR, "jet.wav" );
+ sample1->set_volume(1.0);
+ sample1->set_pitch(1.0);
+ sample1->play_looped();
+ sgr->add(sample1, "sound1");
+ smgr->update(1.0);
+ printf("playing sample\n");
+ sleep(3);
+ sample1->stop();
+ smgr->update(3.0);
+ sleep(1);
+
+ printf("source at lat,lon = (10,-10), listener at (9.99,-9.99)\n");
+ pos = SGGeod::fromDeg(9.99,-9.99);
+ sample1->set_position( SGVec3d::fromGeod(SGGeod::fromDeg(10,-10)) );
+ smgr->set_position( SGVec3d::fromGeod(pos), pos );
+ sample1->play_looped();
+ smgr->update(1.0);
+ printf("playing sample\n");
+ sleep(3);
+ sample1->stop();
+ smgr->update(3.0);
+ sleep(1);
+
+ sgr->remove("sound1");
+ smgr->unbind();
+ sleep(2);
+ delete smgr;
+}
--- /dev/null
+// sample_group.cxx -- Manage a group of samples relative to a base position
+//
+// Written for the new SoundSystem by Erik Hofman, October 2009
+//
+// 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.
+//
+// $Id$
+
+#ifdef HAVE_CONFIG_H
+# include <simgear_config.h>
+#endif
+
+#include <simgear/compiler.h>
+
+#include "soundmgr_openal.hxx"
+#include "sample_group.hxx"
+
+bool isNaN(float *v) {
+ return (isnan(v[0]) || isnan(v[1]) || isnan(v[2]));
+}
+
+SGSampleGroup::SGSampleGroup () :
+ _smgr(NULL),
+ _refname(""),
+ _active(false),
+ _changed(false),
+ _pause(false),
+ _volume(1.0),
+ _tied_to_listener(false),
+ _velocity(SGVec3d::zeros()),
+ _orientation(SGQuatd::zeros())
+{
+ _samples.clear();
+}
+
+SGSampleGroup::SGSampleGroup ( SGSoundMgr *smgr, const string &refname ) :
+ _smgr(smgr),
+ _refname(refname),
+ _active(false),
+ _changed(false),
+ _pause(false),
+ _volume(1.0),
+ _tied_to_listener(false),
+ _velocity(SGVec3d::zeros()),
+ _orientation(SGQuatd::zeros())
+{
+ _smgr->add(this, refname);
+ _samples.clear();
+}
+
+SGSampleGroup::~SGSampleGroup ()
+{
+ _active = false;
+
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+
+ if ( sample->is_valid_source() && sample->is_playing() ) {
+ sample->no_valid_source();
+ _smgr->release_source( sample->get_source() );
+ _smgr->release_buffer( sample );
+ }
+ }
+
+ _smgr = 0;
+}
+
+void SGSampleGroup::update( double dt ) {
+
+ if ( !_active || _pause ) return;
+
+ testForALError("start of update!!\n");
+
+ // Delete any OpenAL buffers that might still be in use.
+ unsigned int size = _removed_samples.size();
+ for (unsigned int i=0; i<size; ) {
+ SGSoundSample *sample = _removed_samples[i];
+ ALint result = AL_STOPPED;
+
+ if ( sample->is_valid_source() ) {
+ if ( sample->is_looping() ) {
+ sample->no_valid_source();
+ _smgr->release_source( sample->get_source() );
+ }
+ else
+ alGetSourcei( sample->get_source(), AL_SOURCE_STATE, &result );
+ }
+
+ if ( result == AL_STOPPED ) {
+ ALuint buffer = sample->get_buffer();
+ alDeleteBuffers( 1, &buffer );
+ testForALError("buffer remove");
+ _removed_samples.erase( _removed_samples.begin()+i );
+ size--;
+ continue;
+ }
+ i++;
+ }
+
+ // Update the position and orientation information for all samples.
+ if ( _changed || _smgr->has_changed() ) {
+ update_pos_and_orientation();
+ _changed = false;
+ }
+
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+
+ if ( !sample->is_valid_source() && sample->is_playing() ) {
+ //
+ // a request to start playing a sound has been filed.
+ //
+ if ( _smgr->request_buffer(sample) == SGSoundMgr::NO_BUFFER )
+ continue;
+
+ // start playing the sample
+ ALuint buffer = sample->get_buffer();
+ ALuint source = _smgr->request_source();
+ if (alIsSource(source) == AL_TRUE && alIsBuffer(buffer) == AL_TRUE)
+ {
+ sample->set_source( source );
+
+ alSourcei( source, AL_BUFFER, buffer );
+ testForALError("assign buffer to source");
+
+ sample->set_source( source );
+ update_sample_config( sample );
+
+ ALboolean looping = sample->is_looping() ? AL_TRUE : AL_FALSE;
+ alSourcei( source, AL_LOOPING, looping );
+ alSourcef( source, AL_ROLLOFF_FACTOR, 0.3 );
+ alSourcei( source, AL_SOURCE_RELATIVE, AL_FALSE );
+ alSourcePlay( source );
+ testForALError("sample play");
+ } else {
+ if (alIsBuffer(buffer) == AL_FALSE)
+ SG_LOG( SG_GENERAL, SG_ALERT, "No such buffer!\n");
+ // sample->no_valid_source();
+ // sadly, no free source available at this time
+ }
+
+ } else if ( sample->is_valid_source() && sample->has_changed() ) {
+ if ( !sample->is_playing() ) {
+ // a request to stop playing the sound has been filed.
+
+ sample->stop();
+ sample->no_valid_source();
+ _smgr->release_source( sample->get_source() );
+ } else if ( _smgr->has_changed() ) {
+ update_sample_config( sample );
+ }
+
+ } else if ( sample->is_valid_source() ) {
+ // check if the sound has stopped by itself
+
+ unsigned int source = sample->get_source();
+ int result;
+
+ alGetSourcei( source, AL_SOURCE_STATE, &result );
+ if ( result == AL_STOPPED ) {
+ // sample is stoped because it wasn't looping
+ sample->stop();
+ sample->no_valid_source();
+ _smgr->release_source( source );
+ _smgr->release_buffer( sample );
+ remove( sample->get_sample_name() );
+ }
+ }
+ testForALError("update");
+ }
+}
+
+// add a sound effect, return true if successful
+bool SGSampleGroup::add( SGSharedPtr<SGSoundSample> sound, const string& refname ) {
+
+ sample_map_iterator sample_it = _samples.find( refname );
+ if ( sample_it != _samples.end() ) {
+ // sample name already exists
+ return false;
+ }
+
+ _samples[refname] = sound;
+ return true;
+}
+
+
+// remove a sound effect, return true if successful
+bool SGSampleGroup::remove( const string &refname ) {
+
+ sample_map_iterator sample_it = _samples.find( refname );
+ if ( sample_it == _samples.end() ) {
+ // sample was not found
+ return false;
+ }
+
+ if ( sample_it->second->is_valid_buffer() )
+ _removed_samples.push_back( sample_it->second );
+ _samples.erase( sample_it );
+
+ return true;
+}
+
+
+// return true of the specified sound exists in the sound manager system
+bool SGSampleGroup::exists( const string &refname ) {
+ sample_map_iterator sample_it = _samples.find( refname );
+ if ( sample_it == _samples.end() ) {
+ // sample was not found
+ return false;
+ }
+
+ return true;
+}
+
+
+// return a pointer to the SGSoundSample if the specified sound exists
+// in the sound manager system, otherwise return NULL
+SGSoundSample *SGSampleGroup::find( const string &refname ) {
+ sample_map_iterator sample_it = _samples.find( refname );
+ if ( sample_it == _samples.end() ) {
+ // sample was not found
+ return NULL;
+ }
+
+ return sample_it->second;
+}
+
+
+void
+SGSampleGroup::stop ()
+{
+ _pause = true;
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+
+ if ( sample->is_valid_source() ) {
+ ALint source = sample->get_source();
+ if ( sample->is_playing() ) {
+ alSourceStop( source );
+ alSourcei( source, AL_BUFFER, 0 );
+ }
+ _smgr->release_source( source );
+ sample->no_valid_source();
+ }
+
+ if (sample->is_valid_buffer() ) {
+ _smgr->release_buffer( sample );
+ sample->no_valid_buffer();
+ }
+ }
+ testForALError("stop");
+}
+
+// stop playing all associated samples
+void
+SGSampleGroup::suspend ()
+{
+ if (_pause == false) {
+ _pause = true;
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+
+ if ( sample->is_valid_source() && sample->is_playing() ) {
+ alSourcePause( sample->get_source() );
+ }
+ }
+ testForALError("suspend");
+ }
+}
+
+// resume playing all associated samples
+void
+SGSampleGroup::resume ()
+{
+ if (_pause == true) {
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+
+ if ( sample->is_valid_source() && sample->is_playing() ) {
+ alSourcePlay( sample->get_source() );
+ }
+ }
+ testForALError("resume");
+ _pause = false;
+ }
+}
+
+
+// tell the scheduler to play the indexed sample in a continuous loop
+bool SGSampleGroup::play( const string &refname, bool looping = false ) {
+ SGSoundSample *sample = find( refname );
+
+ if ( sample == NULL ) {
+ return false;
+ }
+
+ sample->play( looping );
+ return true;
+}
+
+
+// return true of the specified sound is currently being played
+bool SGSampleGroup::is_playing( const string& refname ) {
+ SGSoundSample *sample = find( refname );
+
+ if ( sample == NULL ) {
+ return false;
+ }
+
+ return ( sample->is_playing() ) ? true : false;
+}
+
+// immediate stop playing the sound
+bool SGSampleGroup::stop( const string& refname ) {
+ SGSoundSample *sample = find( refname );
+
+ if ( sample == NULL ) {
+ return false;
+ }
+
+ sample->stop();
+ return true;
+}
+
+void SGSampleGroup::set_volume( float vol )
+{
+ if (vol > _volume*1.01 || vol < _volume*0.99) {
+ _volume = vol;
+ if (_volume < 0.0) _volume = 0.0;
+ if (_volume > 1.0) _volume = 1.0;
+ _changed = true;
+ }
+}
+
+// set the source position and orientation of all managed sounds
+void SGSampleGroup::update_pos_and_orientation() {
+
+ SGVec3d position = SGVec3d::fromGeod(_base_pos) - _smgr->get_position();
+ SGQuatd hlOr = SGQuatd::fromLonLat(_base_pos);
+ SGQuatd ec2body = hlOr*_orientation;
+
+ SGVec3f velocity = SGVec3f::zeros();
+ if ( _velocity[0] || _velocity[1] || _velocity[2] ) {
+ velocity = toVec3f( hlOr.backTransform(_velocity*SG_FEET_TO_METER) );
+ }
+
+ sample_map_iterator sample_current = _samples.begin();
+ sample_map_iterator sample_end = _samples.end();
+ for ( ; sample_current != sample_end; ++sample_current ) {
+ SGSoundSample *sample = sample_current->second;
+ sample->set_master_volume( _volume );
+ sample->set_orientation( _orientation );
+ sample->set_rotation( ec2body );
+ sample->set_position( position );
+ sample->set_velocity( velocity );
+ }
+}
+
+void SGSampleGroup::update_sample_config( SGSoundSample *sample ) {
+ SGVec3f orientation, velocity;
+ SGVec3d position;
+
+ if ( _tied_to_listener ) {
+ orientation = _smgr->get_direction();
+ position = SGVec3d::zeros();
+ velocity = _smgr->get_velocity();
+ } else {
+ sample->update_pos_and_orientation();
+ orientation = sample->get_orientation();
+ position = sample->get_position();
+ velocity = sample->get_velocity();
+ }
+
+ if (_smgr->bad_doppler_effect()) {
+ velocity *= 100.0f;
+ }
+
+#if 0
+ if (length(position) > 20000)
+ printf("%s source and listener distance greater than 20km!\n",
+ _refname.c_str());
+ if (isNaN(toVec3f(position).data())) printf("NaN in source position\n");
+ if (isNaN(orientation.data())) printf("NaN in source orientation\n");
+ if (isNaN(velocity.data())) printf("NaN in source velocity\n");
+#endif
+
+ unsigned int source = sample->get_source();
+ alSourcefv( source, AL_POSITION, toVec3f(position).data() );
+ alSourcefv( source, AL_VELOCITY, velocity.data() );
+ alSourcefv( source, AL_DIRECTION, orientation.data() );
+ testForALError("position and orientation");
+
+ alSourcef( source, AL_PITCH, sample->get_pitch() );
+ alSourcef( source, AL_GAIN, sample->get_volume() );
+ testForALError("pitch and gain");
+
+ if ( sample->has_static_data_changed() ) {
+ alSourcef( source, AL_CONE_INNER_ANGLE, sample->get_innerangle() );
+ alSourcef( source, AL_CONE_OUTER_ANGLE, sample->get_outerangle() );
+ alSourcef( source, AL_CONE_OUTER_GAIN, sample->get_outergain() );
+ testForALError("audio cone");
+
+ alSourcef( source, AL_MAX_DISTANCE, sample->get_max_dist() );
+ alSourcef( source, AL_REFERENCE_DISTANCE,
+ sample->get_reference_dist() );
+ testForALError("distance rolloff");
+ }
+}
+
+bool SGSampleGroup::testForError(void *p, string s)
+{
+ if (p == NULL) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "Error (sample group): " << s);
+ return true;
+ }
+ return false;
+}
+
+bool SGSampleGroup::testForALError(string s)
+{
+ ALenum error = alGetError();
+ if (error != AL_NO_ERROR) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "AL Error (" << _refname << "): "
+ << alGetString(error) << " at " << s);
+ return true;
+ }
+ return false;
+}
+
--- /dev/null
+// sample_group.hxx -- Manage a group of samples relative to a base position
+//
+// Written for the new SoundSystem by Erik Hofman, October 2009
+//
+// 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.
+//
+// $Id$
+
+/**
+ * \file sample_group.hxx
+ * sample groups contain all sounds related to one specific object and
+ * have to be added to the sound manager, otherwise they won't get processed.
+ */
+
+#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>
+#include <map>
+
+#include <simgear/compiler.h>
+#include <simgear/math/SGMath.hxx>
+#include <simgear/structure/SGReferenced.hxx>
+#include <simgear/structure/SGSharedPtr.hxx>
+#include <simgear/structure/exception.hxx>
+
+#include "sample_openal.hxx"
+
+using std::map;
+using std::string;
+
+typedef map < string, SGSharedPtr<SGSoundSample> > sample_map;
+typedef sample_map::iterator sample_map_iterator;
+typedef sample_map::const_iterator const_sample_map_iterator;
+
+class SGSoundMgr;
+
+class SGSampleGroup : public SGReferenced
+{
+public:
+
+ /**
+ * Empty constructor for class encapsulation.
+ * Note: The sample group should still be activated before use
+ */
+ SGSampleGroup ();
+
+ /**
+ * Constructor
+ * Register this sample group at the sound manager using refname
+ * Note: The sample group should still be activated before use
+ * @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 );
+
+ /**
+ * Destructor
+ */
+ ~SGSampleGroup ();
+
+ /**
+ * Set the status of this sample group to active.
+ */
+ inline void activate() { _active = true; }
+
+ /**
+ * Update function.
+ * Call this function periodically to update the OpenAL state of all
+ * samples associated with this class. None op the configuration changes
+ * take place without a call to this function.
+ */
+ virtual void update (double dt);
+
+ /**
+ * Register an audio sample to this group.
+ * @param sound Pointer to a pre-initialized audio sample
+ * @param refname Name of this audio sample for reference purposes
+ * @return return true if successful
+ */
+ bool add( SGSharedPtr<SGSoundSample> sound, const 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 );
+
+ /**
+ * 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 );
+
+ /**
+ * 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 );
+
+ /**
+ * Stop all playing samples and set the source id to invalid.
+ */
+ void stop();
+
+ /**
+ * Request to stop playing all audio samples until further notice.
+ */
+ void suspend();
+
+ /**
+ * Request to resume playing all audio samples.
+ */
+ void resume();
+
+ /**
+ * Request to start playing the refered audio sample.
+ * @param refname Reference name of the audio sample to start playing
+ * @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 );
+
+ /**
+ * Request to start playing the refered 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 ) {
+ return play( refname, true );
+ }
+
+ /**
+ * Request to start playing the refered audio sample once.
+ * @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_once( const string& refname ) {
+ return play( refname, false );
+ }
+
+ /**
+ * Test if a referenced sample is playing or not.
+ * @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 );
+
+ /**
+ * Request to stop playing the refered audio sample.
+ * @param refname Reference name of the audio sample to stop
+ * @return true if the audio sample exsists and is scheduled to stop
+ */
+ bool stop( const string& refname );
+
+ /**
+ * Set the master volume for this sample group.
+ * @param vol Volume (must be between 0.0 and 1.0)
+ */
+ void set_volume( float vol );
+
+ /**
+ * Set the velocity vector of this sample group.
+ * This is in the local frame coordinate system; x=north, y=east, z=down
+ * @param vel Velocity vector
+ */
+ void set_velocity( const SGVec3d& vel ) {
+ _velocity = vel; _changed = true;
+ }
+
+ /**
+ * Set the position of this sample group.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * @param pos Base position
+ */
+ void set_position_geod( const SGGeod& pos ) {
+ _base_pos = pos; _changed = true;
+ }
+
+ /**
+ * Set the orientation of this sample group.
+ * @param ori Quaternation containing the orientation information
+ */
+ void set_orientation( const SGQuatd& ori ) {
+ _orientation = ori; _changed = true;
+ }
+
+ /**
+ * Tie this sample group to the listener position, orientation and velocity
+ */
+ void tie_to_listener() { _tied_to_listener = true; }
+
+protected:
+ SGSoundMgr *_smgr;
+ string _refname;
+ bool _active;
+
+private:
+ bool _changed;
+ bool _pause;
+ float _volume;
+ bool _tied_to_listener;
+
+ SGVec3d _velocity;
+ SGGeod _base_pos;
+ SGQuatd _orientation;
+
+ sample_map _samples;
+ std::vector< SGSharedPtr<SGSoundSample> > _removed_samples;
+
+ bool testForALError(string s);
+ bool testForError(void *p, string s);
+
+ void update_pos_and_orientation();
+ void update_sample_config( SGSoundSample *sound );
+};
+
+#endif // _SG_SAMPLE_GROUP_OPENAL_HXX
+
-// sample.cxx -- Sound sample encapsulation class
+// sample_openal.cxx -- Audio sample encapsulation class
//
// Written by Curtis Olson, started April 2004.
+// Modified to match the new SoundSystem by Erik Hofman, October 2009
//
// Copyright (C) 2004 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
// 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.
+// 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_config.h>
#endif
-#if defined( __APPLE__ )
-# define AL_ILLEGAL_ENUM AL_INVALID_ENUM
-# define AL_ILLEGAL_COMMAND AL_INVALID_OPERATION
-# include <OpenAL/al.h>
-# include <OpenAL/alut.h>
-#else
-# include <AL/al.h>
-# include <AL/alut.h>
-#endif
+#include <stdlib.h> // rand()
#include <simgear/debug/logstream.hxx>
-#include <simgear/misc/sg_path.hxx>
#include <simgear/structure/exception.hxx>
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/math/SGMath.hxx>
+#include "soundmgr_openal.hxx"
#include "sample_openal.hxx"
// SGSoundSample
//
-
-static bool print_openal_error(const string &s = "unknown") {
- ALuint error = alGetError();
- if ( error == AL_NO_ERROR ) {
- return false;
- } else if ( error == AL_INVALID_NAME ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "OpenAL error (AL_INVALID_NAME): " << s );
- } else if ( error == AL_ILLEGAL_ENUM ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "OpenAL error (AL_ILLEGAL_ENUM): " << s );
- } else if ( error == AL_INVALID_VALUE ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "OpenAL error (AL_INVALID_VALUE): " << s );
- } else if ( error == AL_ILLEGAL_COMMAND ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "OpenAL error (AL_ILLEGAL_COMMAND): " << s );
- } else if ( error == AL_OUT_OF_MEMORY ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "OpenAL error (AL_OUT_OF_MEMORY): " << s );
- } else {
- SG_LOG( SG_GENERAL, SG_ALERT, "Unhandled error code = " << error );
- }
- return error != 0;
-}
-
// empty constructor
SGSoundSample::SGSoundSample() :
- buffer(0),
- source(0),
- pitch(1.0),
- volume(1.0),
- reference_dist(500.0),
- max_dist(3000.),
- loop(AL_FALSE),
-#ifdef USE_SOFTWARE_DOPPLER
- doppler_pitch_factor(1),
- doppler_volume_factor(1),
-#endif
- playing(false),
- no_Doppler_effect(true)
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3f::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGVec3d::zeros()),
+ _rotation(SGQuatd::zeros()),
+ _refname(random_string()),
+ _data(NULL),
+ _format(AL_FORMAT_MONO8),
+ _size(0),
+ _freq(0),
+ _valid_buffer(false),
+ _buffer(SGSoundMgr::NO_BUFFER),
+ _valid_source(false),
+ _source(SGSoundMgr::NO_SOURCE),
+ _inner_angle(360.0),
+ _outer_angle(360.0),
+ _outer_gain(0.0),
+ _pitch(1.0),
+ _volume(1.0),
+ _master_volume(1.0),
+ _reference_dist(500.0),
+ _max_dist(3000.0),
+ _loop(AL_FALSE),
+ _playing(false),
+ _changed(true),
+ _static_changed(true),
+ _is_file(false)
{
}
// constructor
-SGSoundSample::SGSoundSample( const char *path, const char *file, bool _no_Doppler_effect ) :
- buffer(0),
- source(0),
- pitch(1.0),
- volume(1.0),
- reference_dist(500.0),
- max_dist(3000.),
- loop(AL_FALSE),
-#ifdef USE_SOFTWARE_DOPPLER
- doppler_pitch_factor(1),
- doppler_volume_factor(1),
-#endif
- playing(false),
- no_Doppler_effect(_no_Doppler_effect)
+SGSoundSample::SGSoundSample( const char *path, const char *file ) :
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3f::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGVec3d::zeros()),
+ _rotation(SGQuatd::zeros()),
+ _refname(file),
+ _data(NULL),
+ _format(AL_FORMAT_MONO8),
+ _size(0),
+ _freq(0),
+ _valid_buffer(false),
+ _buffer(SGSoundMgr::NO_BUFFER),
+ _valid_source(false),
+ _source(SGSoundMgr::NO_SOURCE),
+ _inner_angle(360.0),
+ _outer_angle(360.0),
+ _outer_gain(0.0),
+ _pitch(1.0),
+ _volume(1.0),
+ _master_volume(1.0),
+ _reference_dist(500.0),
+ _max_dist(3000.0),
+ _loop(AL_FALSE),
+ _playing(false),
+ _changed(true),
+ _static_changed(true),
+ _is_file(true)
{
SGPath samplepath( path );
if ( strlen(file) ) {
samplepath.append( file );
}
- sample_name = samplepath.str();
-
- SG_LOG( SG_GENERAL, SG_DEBUG, "From file sounds sample = "
- << samplepath.str() );
-
- source_pos[0] = 0.0; source_pos[1] = 0.0; source_pos[2] = 0.0;
- offset_pos[0] = 0.0; offset_pos[1] = 0.0; offset_pos[2] = 0.0;
- source_vel[0] = 0.0; source_vel[1] = 0.0; source_vel[2] = 0.0;
- direction[0] = 0.0; direction[1] = 0.0; direction[2] = 0.0;
- inner = outer = 360.0; outergain = 0.0;
-
- // clear errors from elsewhere?
- alGetError();
-
- // create an OpenAL buffer handle
- alGenBuffers(1, &buffer);
- if ( print_openal_error("constructor (alGenBuffers)") ) {
- throw sg_exception("Failed to gen OpenAL buffer.");
- }
-
- // Load the sample file
-#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
-
- buffer = alutCreateBufferFromFile(samplepath.c_str());
- if (buffer == AL_NONE) {
- ALenum error = alutGetError ();
- print_openal_error("constructor (alutCreateBufferFromFile)");
- throw sg_io_exception("Failed to load wav file: ",
- sg_location(string(alutGetErrorString (error))));
- }
-
-#else
- //
- // pre 1.0 alut version
- //
- ALvoid* data = load_file(path, file);
-
- // Copy data to the internal OpenAL buffer
- alBufferData( buffer, format, data, size, freq );
-
- if ( print_openal_error("constructor (alBufferData)") ) {
- SG_LOG( SG_GENERAL, SG_ALERT, "Trying to use file " << file );
- throw sg_exception("Failed to buffer data.");
- }
-
- alutUnloadWAV( format, data, size, freq );
-#endif
-
- print_openal_error("constructor return");
+ _refname = samplepath.str();
}
// constructor
-SGSoundSample::SGSoundSample( unsigned char *_data, int len, int _freq, bool _no_Doppler_effect ) :
- buffer(0),
- source(0),
- pitch(1.0),
- volume(1.0),
- reference_dist(500.0),
- max_dist(3000.),
- loop(AL_FALSE),
-#ifdef USE_SOFTWARE_DOPPLER
- doppler_pitch_factor(1),
- doppler_volume_factor(1),
-#endif
- playing(false),
- no_Doppler_effect(_no_Doppler_effect)
+SGSoundSample::SGSoundSample( const unsigned char** data,
+ int len, int freq, int format ) :
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3f::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGVec3d::zeros()),
+ _rotation(SGQuatd::zeros()),
+ _refname(random_string()),
+ _format(format),
+ _size(len),
+ _freq(freq),
+ _valid_buffer(false),
+ _buffer(SGSoundMgr::NO_BUFFER),
+ _valid_source(false),
+ _source(SGSoundMgr::NO_SOURCE),
+ _inner_angle(360.0),
+ _outer_angle(360.0),
+ _outer_gain(0.0),
+ _pitch(1.0),
+ _volume(1.0),
+ _master_volume(1.0),
+ _reference_dist(500.0),
+ _max_dist(3000.0),
+ _loop(AL_FALSE),
+ _playing(false),
+ _changed(true),
+ _static_changed(true),
+ _is_file(false)
{
SG_LOG( SG_GENERAL, SG_DEBUG, "In memory sounds sample" );
+ _data = (unsigned char*)*data; *data = NULL;
+}
- sample_name = "unknown, generated from data";
-
- source_pos[0] = 0.0; source_pos[1] = 0.0; source_pos[2] = 0.0;
- offset_pos[0] = 0.0; offset_pos[1] = 0.0; offset_pos[2] = 0.0;
- source_vel[0] = 0.0; source_vel[1] = 0.0; source_vel[2] = 0.0;
- direction[0] = 0.0; direction[1] = 0.0; direction[2] = 0.0;
- inner = outer = 360.0; outergain = 0.0;
-
- // clear errors from elsewhere?
- alGetError();
-
- // Load wav data into a buffer.
- alGenBuffers(1, &buffer);
- if ( print_openal_error("constructor (alGenBuffers)") ) {
- throw sg_exception("Failed to gen buffer." );
- }
-
- format = AL_FORMAT_MONO8;
- size = len;
- freq = _freq;
-
- alBufferData( buffer, format, _data, size, freq );
- if ( print_openal_error("constructor (alBufferData)") ) {
- throw sg_exception("Failed to buffer data.");
- }
-
- print_openal_error("constructor return");
+// constructor
+SGSoundSample::SGSoundSample( void** data, int len, int freq, int format ) :
+ _absolute_pos(SGVec3d::zeros()),
+ _relative_pos(SGVec3d::zeros()),
+ _direction(SGVec3d::zeros()),
+ _velocity(SGVec3f::zeros()),
+ _orientation(SGQuatd::zeros()),
+ _orivec(SGVec3f::zeros()),
+ _base_pos(SGVec3d::zeros()),
+ _rotation(SGQuatd::zeros()),
+ _refname(random_string()),
+ _format(format),
+ _size(len),
+ _freq(freq),
+ _valid_buffer(false),
+ _buffer(SGSoundMgr::NO_BUFFER),
+ _valid_source(false),
+ _source(SGSoundMgr::NO_SOURCE),
+ _inner_angle(360.0),
+ _outer_angle(360.0),
+ _outer_gain(0.0),
+ _pitch(1.0),
+ _volume(1.0),
+ _master_volume(1.0),
+ _reference_dist(500.0),
+ _max_dist(3000.0),
+ _loop(AL_FALSE),
+ _playing(false),
+ _changed(true),
+ _static_changed(true),
+ _is_file(false)
+{
+ SG_LOG( SG_GENERAL, SG_DEBUG, "In memory sounds sample" );
+ _data = (unsigned char*)*data; *data = NULL;
}
// destructor
SGSoundSample::~SGSoundSample() {
- SG_LOG( SG_GENERAL, SG_INFO, "Deleting a sample" );
- if (buffer)
- alDeleteBuffers(1, &buffer);
-}
-
-
-// play the sample
-void SGSoundSample::play( bool _loop ) {
-
- if ( source ) {
- alSourceStop( source );
- }
-
- playing = bind_source();
- if ( playing ) {
- loop = _loop;
-
- alSourcei( source, AL_LOOPING, loop );
- alSourcePlay( source );
-
- print_openal_error("play (alSourcePlay)");
- }
-}
-
-
-// stop playing the sample
-void SGSoundSample::stop() {
- if (playing) {
- alSourceStop( source );
- alDeleteSources(1, &source);
- source = 0;
- print_openal_error("stop (alDeleteSources)");
- }
- playing = false;
-}
-
-// Generate sound source
-bool
-SGSoundSample::bind_source() {
-
- if ( playing ) {
- return true;
- }
- if ( buffer == 0 ) {
- return false;
- }
-
- // Bind buffer with a source.
- alGetError();
- alGenSources(1, &source);
- if ( print_openal_error("bind_source (alGenSources)") ) {
- // No biggy, better luck next time.
- SG_LOG( SG_GENERAL, SG_ALERT, "Failed to generate audio source.");
- // SG_LOG( SG_GENERAL, SG_ALERT, "Please update your sound driver and try again.");
- return false;
- }
-
- alSourcei( source, AL_BUFFER, buffer );
-#ifndef USE_SOFTWARE_DOPPLER
- alSourcef( source, AL_PITCH, pitch );
- alSourcef( source, AL_GAIN, volume );
-#else
- print_openal_error("bind_sources return");
- alSourcef( source, AL_PITCH, pitch * doppler_pitch_factor );
- alGetError(); // ignore if the pitch is clamped by the driver
- alSourcef( source, AL_GAIN, volume * doppler_volume_factor );
-#endif
- alSourcefv( source, AL_POSITION, source_pos );
- alSourcefv( source, AL_DIRECTION, direction );
- alSourcef( source, AL_CONE_INNER_ANGLE, inner );
- alSourcef( source, AL_CONE_OUTER_ANGLE, outer );
- alSourcef( source, AL_CONE_OUTER_GAIN, outergain);
-#ifdef USE_OPEN_AL_DOPPLER
- alSourcefv( source, AL_VELOCITY, source_vel );
-#endif
- alSourcei( source, AL_LOOPING, loop );
-
- alSourcei( source, AL_SOURCE_RELATIVE, AL_TRUE );
- alSourcef( source, AL_REFERENCE_DISTANCE, reference_dist );
- alSourcef( source, AL_MAX_DISTANCE, max_dist );
-
- print_openal_error("bind_sources return");
-
- return true;
-}
-
-void
-SGSoundSample::set_pitch( double p ) {
- // clamp in the range of 0.01 to 2.0
- if ( p < 0.01 ) { p = 0.01; }
- if ( p > 2.0 ) { p = 2.0; }
- pitch = p;
- if (playing) {
-#ifndef USE_SOFTWARE_DOPPLER
- alSourcef( source, AL_PITCH, pitch );
- print_openal_error("set_pitch");
-#else
- alSourcef( source, AL_PITCH, pitch * doppler_pitch_factor );
- alGetError(); // ignore if the pitch is clamped by the driver
-#endif
- }
-}
-
-void
-SGSoundSample::set_volume( double v ) {
- volume = v;
- if (playing) {
-#ifndef USE_SOFTWARE_DOPPLER
- alSourcef( source, AL_GAIN, volume );
-#else
- alSourcef( source, AL_GAIN, volume * doppler_volume_factor );
-#endif
- print_openal_error("set_volume");
- }
-}
-
-
-bool
-SGSoundSample::is_playing( ) {
- if (playing) {
- ALint result;
- alGetSourcei( source, AL_SOURCE_STATE, &result );
- if ( alGetError() != AL_NO_ERROR) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Oops AL error in sample is_playing(): " << sample_name );
- }
- return (result == AL_PLAYING) ;
- } else
- return false;
-}
-
-void
-SGSoundSample::set_source_pos( ALfloat *pos ) {
- source_pos[0] = pos[0];
- source_pos[1] = pos[1];
- source_pos[2] = pos[2];
-
- if (playing) {
- sgVec3 final_pos;
- sgAddVec3( final_pos, source_pos, offset_pos );
-
- alSourcefv( source, AL_POSITION, final_pos );
- print_openal_error("set_source_pos");
- }
-}
-
-void
-SGSoundSample::set_offset_pos( ALfloat *pos ) {
- offset_pos[0] = pos[0];
- offset_pos[1] = pos[1];
- offset_pos[2] = pos[2];
-
- if (playing) {
- sgVec3 final_pos;
- sgAddVec3( final_pos, source_pos, offset_pos );
-
- alSourcefv( source, AL_POSITION, final_pos );
- print_openal_error("set_offset_pos");
- }
+ if ( _data != NULL ) free(_data);
}
-void
-SGSoundSample::set_orientation( ALfloat *dir, ALfloat inner_angle,
- ALfloat outer_angle,
- ALfloat outer_gain)
-{
- inner = inner_angle;
- outer = outer_angle;
- outergain = outer_gain;
- direction[0] = dir[0];
- direction[1] = dir[1];
- direction[2] = dir[2];
- if (playing) {
- alSourcefv( source, AL_DIRECTION, dir);
- alSourcef( source, AL_CONE_INNER_ANGLE, inner );
- alSourcef( source, AL_CONE_OUTER_ANGLE, outer );
- alSourcef( source, AL_CONE_OUTER_GAIN, outergain );
- }
-}
+void SGSoundSample::update_pos_and_orientation() {
-void
-SGSoundSample::set_source_vel( ALfloat *vel, ALfloat *listener_vel ) {
- if (no_Doppler_effect) {
- source_vel[0] = listener_vel[0];
- source_vel[1] = listener_vel[1];
- source_vel[2] = listener_vel[2];
- } else {
- source_vel[0] = vel[0];
- source_vel[1] = vel[1];
- source_vel[2] = vel[2];
- }
-#ifdef USE_OPEN_AL_DOPPLER
- if (playing) {
- alSourcefv( source, AL_VELOCITY, source_vel );
- }
-#elif defined (USE_OPEN_AL_DOPPLER_WITH_FIXED_LISTENER)
- if (playing) {
- sgVec3 relative_vel;
- sgSubVec3( relative_vel, source_vel, listener_vel );
- alSourcefv( source, AL_VELOCITY, relative_vel );
- }
-#else
- if (no_Doppler_effect) {
- doppler_pitch_factor = 1;
- doppler_volume_factor = 1;
- return;
+ _absolute_pos = _base_pos;
+ if (_relative_pos[0] || _relative_pos[1] || _relative_pos[2] ) {
+ _absolute_pos += _rotation.rotate( _relative_pos );
}
- double doppler, mfp;
- sgVec3 final_pos;
- sgAddVec3( final_pos, source_pos, offset_pos );
- mfp = sgLengthVec3(final_pos);
- if (mfp > 1e-6) {
- double vls = -sgScalarProductVec3( listener_vel, final_pos ) / mfp;
- double vss = -sgScalarProductVec3( source_vel, final_pos ) / mfp;
- if (fabs(340 - vss) > 1e-6)
- {
- doppler = (340 - vls) / (340 - vss);
- doppler = ( doppler > 0) ? ( ( doppler < 10) ? doppler : 10 ) : 0;
- }
- else
- doppler = 0;
- }
- else
- doppler = 1;
- /* the OpenAL documentation of the Doppler calculation
- SS: AL_SPEED_OF_SOUND = speed of sound (default value 343.3)
- DF: AL_DOPPLER_FACTOR = Doppler factor (default 1.0)
- vls: Listener velocity scalar (scalar, projected on source-to-listener vector)
- vss: Source velocity scalar (scalar, projected on source-to-listener vector)
- SL = source to listener vector
- SV = Source Velocity vector
- LV = Listener Velocity vector
- vls = DotProduct(SL, LV) / Mag(SL)
- vss = DotProduct(SL, SV) / Mag(SL)
- Dopper Calculation:
- vss = min(vss, SS/DF)
- vls = min(vls, SS/DF)
- f' = f * (SS - DF*vls) / (SS - DF*vss)
- */
- if (doppler > 0.1) {
- if (doppler < 10) {
- doppler_pitch_factor = doppler;
- doppler_volume_factor = 1;
- }
- else {
- doppler_pitch_factor = (doppler < 11) ? doppler : 11;
- doppler_volume_factor = (doppler < 11) ? 11-doppler : 0;
- }
- }
- else {
- doppler_pitch_factor = 0.1;
- doppler_volume_factor = (doppler > 0) ? doppler * 10 : 0;
- }
- if (playing) {
- alSourcef( source, AL_GAIN, volume * doppler_volume_factor );
- print_openal_error("set_source_vel: volume");
- alSourcef( source, AL_PITCH, pitch * doppler_pitch_factor );
- alGetError(); //ignore if the pitch is clamped
- }
-#endif
-}
-void
-SGSoundSample::set_reference_dist( ALfloat dist ) {
- reference_dist = dist;
- if (playing) {
- alSourcef( source, AL_REFERENCE_DISTANCE, reference_dist );
+ _orivec = SGVec3f::zeros();
+ if ( _direction[0] || _direction[1] || _direction[2] ) {
+ _orivec = toVec3f( _rotation.rotate( _direction ) );
}
}
+string SGSoundSample::random_string() {
+ static const char *r = "0123456789abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ string rstr = "System generated name: ";
+ for (int i=0; i<10; i++) {
+ rstr.push_back( r[rand() % strlen(r)] );
+ }
-void
-SGSoundSample::set_max_dist( ALfloat dist ) {
- max_dist = dist;
- if (playing) {
- alSourcef( source, AL_MAX_DISTANCE, max_dist );
- }
-}
-
-ALvoid *
-SGSoundSample::load_file(const char *path, const char *file)
-{
- ALvoid* data = 0;
-
- SGPath samplepath( path );
- if ( strlen(file) ) {
- samplepath.append( file );
- }
-
-#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
- ALfloat freqf;
- data = alutLoadMemoryFromFile(samplepath.c_str(), &format, &size, &freqf );
- if (data == NULL) {
- throw sg_io_exception("Failed to load wav file.",
- sg_location(samplepath.str()));
- }
- freq = (ALsizei)freqf;
-#else
-# if defined (__APPLE__)
- alutLoadWAVFile( (ALbyte *)samplepath.c_str(),
- &format, &data, &size, &freq );
-# else
- alutLoadWAVFile( (ALbyte *)samplepath.c_str(),
- &format, &data, &size, &freq, &loop );
-# endif
- if ( print_openal_error("constructor (alutLoadWAVFile)") ) {
- throw sg_io_exception("Failed to load wav file.",
- sg_location(samplepath.str()));
- }
-#endif
-
- return data;
+ return rstr;
}
-// sample.hxx -- Sound sample encapsulation class
+// sample_openal.hxx -- Audio sample encapsulation class
//
// Written by Curtis Olson, started April 2004.
+// Modified to match the new SoundSystem by Erik Hofman, October 2009
//
// Copyright (C) 2004 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
// 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.
+// along with this program; if not, write to the Free Software Foundation,
+// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
/**
- * \file sample.hxx
- * Provides a sound sample encapsulation
+ * \file audio sample.hxx
+ * Provides a audio sample encapsulation
*/
#ifndef _SG_SAMPLE_HXX
# error This library requires C++
#endif
-#include <simgear/compiler.h>
-
#include <string>
+#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/structure/SGReferenced.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
+#include <simgear/math/SGMath.hxx>
-#include <plib/sg.h>
-
-#if defined(__APPLE__)
-# define AL_ILLEGAL_ENUM AL_INVALID_ENUM
-# define AL_ILLEGAL_COMMAND AL_INVALID_OPERATION
-# include <OpenAL/al.h>
-# include <OpenAL/alut.h>
-#else
-# include <AL/al.h>
-# include <AL/alut.h>
-#endif
-
-#ifndef HAVE_WINDOWS_H
- #ifdef AL_VERSION_1_2
- #define USE_OPEN_AL_DOPPLER should work
- #else
- #define USE_OPEN_AL_DOPPLER_WITH_FIXED_LISTENER better than nothing
- #endif
-#else
- // the Open_AL Doppler calculation seems to be buggy on windows
- #define USE_SOFTWARE_DOPPLER seem to be necessary
-#endif
-
-using std::string;
+// #include <plib/sg.h>
/**
- * manages everything we need to know for an individual sound sample
+ * manages everything we need to know for an individual audio sample
*/
class SGSoundSample : public SGReferenced {
-
-private:
-
- string sample_name;
-
- // Buffers hold sound data.
- ALuint buffer;
-
- // Sources are points emitting sound.
- ALuint source;
-
- // Position of the source sound.
- ALfloat source_pos[3];
-
- // A constant offset to be applied to the final source_pos
- ALfloat offset_pos[3];
-
- // The orientation of the sound (direction and cut-off angles)
- ALfloat direction[3];
- ALfloat inner, outer, outergain;
-
- // Velocity of the source sound.
- ALfloat source_vel[3];
-
- // configuration values
- ALenum format;
- ALsizei size;
- ALsizei freq;
-
- double pitch;
- double volume;
-#ifdef USE_SOFTWARE_DOPPLER
- double doppler_pitch_factor;
- double doppler_volume_factor;
-#endif
- double reference_dist;
- double max_dist;
- ALboolean loop;
-
- bool playing;
- bool bind_source();
- bool no_Doppler_effect;
-
public:
/**
* Constructor
* @param path Path name to sound
* @param file File name of sound
- should usually be true unless you want to manipulate the data
- later.)
+ Buffer data is freed by the sample group
*/
- SGSoundSample( const char *path, const char *file, bool no_Doppler_effect = true );
+ SGSoundSample( const char *path, const char *file );
/**
* Constructor.
- * @param _data Pointer to a memory buffer containing the sample data
- the application is responsible for freeing the buffer data.
+ * @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 untill the class is destroyed. This pointer will be
+ set to NULL after calling this function.
* @param len Byte length of array
- * @param _freq Frequency of the provided data (bytes per second)
- should usually be true unless you want to manipulate the data
- later.)
+ * @param freq Frequency of the provided data (bytes per second)
+ * @param format OpenAL format id of the data
*/
- SGSoundSample( unsigned char *_data, int len, int _freq, bool no_Doppler_effect = true );
+ SGSoundSample( void** data, int len, int freq, int format=AL_FORMAT_MONO8 );
+ SGSoundSample( const unsigned char** data, int len, int freq,
+ int format = AL_FORMAT_MONO8 );
- ~SGSoundSample();
+ /**
+ * Destructor
+ */
+ ~SGSoundSample ();
+
+ /**
+ * Detect wheter this audio sample holds the information of a sound file.
+ * @return Return true if this audio sample is to be constructed from a file.
+ */
+ inline bool is_file() const { return _is_file; }
/**
- * Start playing this sample.
- *
- * @param _loop Define whether the sound should be played in a loop.
+ * Test if this audio sample configuration has changed since the last call.
+ * Calling this function will reset the flag so calling it a second
+ * time in a row will return false.
+ * @return Return true is the configuration has changed in the mean time.
*/
- void play( bool _loop );
+ bool has_changed() {
+ bool b = _changed; _changed = false; return b;
+ }
+
+ /**
+ * Test if static dataa of audio sample configuration has changed.
+ * Calling this function will reset the flag so calling it a second
+ * time in a row will return false.
+ * @return Return true is the static data has changed in the mean time.
+ */
+ bool has_static_data_changed() {
+ bool b = _static_changed; _static_changed = false; return b;
+ }
+
+ /**
+ * Schedule this audio sample for playing. Actual playing will only start
+ * at the next call op SoundGroup::update()
+ * @param _loop Define whether this sound should be played in a loop.
+ */
+ void play( bool loop ) {
+ _playing = true; _loop = loop; _changed = true;
+ }
/**
- * Stop playing this sample.
- *
- * @param sched A pointer to the appropriate scheduler.
+ * Check if this audio sample is set to be continuous looping.
+ * @return Return true if this audio sample is set to looping.
*/
- void stop();
+ inline bool is_looping() { return _loop; }
/**
- * Play this sample once.
+ * Schedule this audio sample to stop playing.
+ */
+ void stop() {
+ _playing = false; _changed = true;
+ }
+
+ /**
+ * Schedule this audio sample to play once.
* @see #play
*/
inline void play_once() { play(false); }
/**
- * Play this sample looped.
+ * Schedule this audio sample to play looped.
* @see #play
*/
inline void play_looped() { play(true); }
/**
- * Test if a sample is currently playing.
- * @return true if is is playing, false otherwise.
+ * Test if a audio sample is scheduled for playing.
+ * @return true if this audio sample is playing, false otherwise.
+ */
+ inline bool is_playing() { return _playing; }
+
+ /**
+ * 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.
+ */
+ inline void set_data( const unsigned char **data ) {
+ _data = (unsigned char*)*data; *data = NULL;
+ }
+ inline void set_data( void **data ) {
+ _data = (unsigned char*)*data; *data = NULL;
+ }
+
+ /**
+ * 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; }
+
+ /**
+ * Free the data associated with this audio sample
+ */
+ void free_data() {
+ if ( _data != NULL ) free( _data ); _data = NULL;
+ }
+
+ /**
+ * Set the source id of this source
+ * @param sid OpenAL source-id
+ */
+ void set_source(unsigned int sid) {
+ _source = sid; _valid_source = true; _changed = true;
+ }
+
+ /**
+ * Get the OpenAL source id of this source
+ * @return OpenAL source-id
+ */
+ inline unsigned int get_source() { return _source; }
+
+ /**
+ * Test if the source-id of this audio sample may be passed to OpenAL.
+ * @return true if the source-id is valid
+ */
+ inline bool is_valid_source() const { return _valid_source; }
+
+ /**
+ * Set the source-id of this audio sample to invalid.
+ */
+ inline void no_valid_source() { _valid_source = false; }
+
+ /**
+ * Set the OpenAL buffer-id of this source
+ * @param bid OpenAL buffer-id
+ */
+ void set_buffer(unsigned int bid) {
+ _buffer = bid; _valid_buffer = true; _changed = true;
+ }
+
+ /**
+ * Get the OpenAL buffer-id of this source
+ * @return OpenAL buffer-id
+ */
+ inline unsigned int get_buffer() { return _buffer; }
+
+ /**
+ * Test if the buffer-id of this audio sample may be passed to OpenAL.
+ * @return true if the buffer-id is valid
*/
- bool is_playing( );
+ inline bool is_valid_buffer() const { return _valid_buffer; }
/**
- * Get the current pitch setting of this sample.
+ * Set the buffer-id of this audio sample to invalid.
*/
- inline double get_pitch() const { return pitch; }
+ inline void no_valid_buffer() { _valid_buffer = false; }
/**
- * Set the pitch of this sample.
+ * Set the playback pitch of this audio sample.
+ * Should be between 0.0 and 2.0 for maximum compatibility.
+ * @param p Pitch
*/
- void set_pitch( double p );
+ inline void set_pitch( float p ) {
+ if (p > 2.0) p = 2.0; else if (p < 0.01) p = 0.01;
+ _pitch = p; _changed = true;
+ }
/**
- * Get the current volume setting of this sample.
+ * Get the current pitch value of this audio sample.
+ * @return Pitch
*/
- inline double get_volume() const { return volume; }
+ inline float get_pitch() { return _pitch; }
/**
- * Set the volume of this sample.
+ * Set the master volume of this sample. Should be between 0.0 and 1.0.
+ * The final volume is calculated by multiplying the master and audio sample
+ * volume.
+ * @param v Volume
*/
- void set_volume( double v );
+ inline void set_master_volume( float v ) {
+ if (v > 1.0) v = 1.0; else if (v < 0.0) v = 0.0;
+ _master_volume = v; _changed = true;
+ }
/**
- * Returns the size of the sounds sample
+ * Set the volume of this audio sample. Should be between 0.0 and 1.0.
+ * The final volume is calculated by multiplying the master and audio sample
+ * volume.
+ * @param v Volume
*/
- inline int get_size() {
- return size;
+ inline void set_volume( float v ) {
+ if (v > 1.0) v = 1.0; else if (v < 0.0) v = 0.0;
+ _volume = v; _changed = true;
}
/**
- * Set position of sound source (uses same coordinate system as opengl)
+ * Get the final volume value of this audio sample.
+ * @return Volume
+ */
+ inline float get_volume() { return _volume * _master_volume; }
+
+ /**
+ * Set the OpenAL format of this audio sample.
+ * @param format OpenAL format-id
+ */
+ inline void set_format( int format ) { _format = format; }
+
+ /**
+ * Returns the format of this audio sample.
+ * @return OpenAL format-id
+ */
+ inline int get_format() { return _format; }
+
+ /**
+ * Set the frequency (in Herz) of this audio sample.
+ * @param freq Frequency
*/
- void set_source_pos( ALfloat *pos );
+ inline void set_frequency( int freq ) { _freq = freq; }
/**
- * Set "constant" offset position of sound source (uses same
- * coordinate system as opengl)
+ * Returns the frequency (in Herz) of this audio sample.
+ * @return Frequency
*/
- void set_offset_pos( ALfloat *pos );
+ inline int get_frequency() { return _freq; }
/**
- * Set the orientation of the sound source, both for direction
- * and audio cut-off angles.
+ * Sets the size (in bytes) of this audio sample.
+ * @param size Data size
*/
- void set_orientation( ALfloat *dir, ALfloat inner_angle=360.0,
- ALfloat outer_angle=360.0,
- ALfloat outer_gain=0.0);
+ inline void set_size( size_t size ) { _size = size; }
/**
- * Set velocity of sound source (uses same coordinate system as opengl)
+ * Returns the size (in bytes) of this audio sample.
+ * @return Data size
*/
- void set_source_vel( ALfloat *vel, ALfloat *listener_vel );
+ inline size_t get_size() const { return _size; }
+ /**
+ * Set the position of this sound relative to the base position.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * @param pos Relative position of this sound
+ */
+ inline void set_relative_position( const SGVec3f& pos ) {
+ _relative_pos = toVec3d(pos); _changed = true;
+ }
/**
- * Set reference distance of sound (the distance where the gain
- * will be half.)
+ * Set the base position in Cartesian coordinates
+ * @param pos position in Cartesian coordinates
*/
- void set_reference_dist( ALfloat dist );
+ inline void set_position( const SGVec3d& pos ) {
+ _base_pos = pos; _changed = true;
+ }
+ /**
+ * Get the absolute position of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * @return Absolute position
+ */
+ SGVec3d& get_position() { return _absolute_pos; }
/**
- * Set maximum distance of sound (the distance where the sound is
- * no longer audible.
+ * Set the orientation of this sound.
+ * @param ori Quaternation containing the orientation information
*/
- void set_max_dist( ALfloat dist );
+ inline void set_orientation( const SGQuatd& ori ) {
+ _orientation = ori; _changed = true;
+ }
+
+ inline void set_rotation( const SGQuatd& ec2body ) {
+ _rotation = ec2body; _changed = true;
+ }
/**
- * Load a sound file into a memory buffer only.
+ * Set direction of this sound relative to the orientation.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @param dir Sound emission direction
*/
- ALvoid* load_file(const char *path, const char *file);
+ inline void set_direction( const SGVec3f& dir ) {
+ _direction = toVec3d(dir); _static_changed = true;
+ }
+
+ /**
+ * Define the audio cone parameters for directional audio.
+ * Note: setting it to 2 degree will result in 1 degree to both sides.
+ * @param inner Inner cone angle (0 - 360 degrees)
+ * @param outer Outer cone angle (0 - 360 degrees)
+ * @param gain Remaining gain at the edge of the outer cone (0.0 - 1.0)
+ */
+ void set_audio_cone( float inner, float outer, float gain ) {
+ _inner_angle = inner; _outer_angle = outer; _outer_gain = gain;
+ _static_changed = true;
+ }
+
+ /**
+ * Get the orientation vector of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @return Orientaton vector
+ */
+ SGVec3f& get_orientation() { return _orivec; }
+
+ /**
+ * Get the inner angle of the audio cone.
+ * @return Inner angle in degrees
+ */
+ float get_innerangle() { return _inner_angle; }
+
+ /**
+ * Get the outer angle of the audio cone.
+ * @return Outer angle in degrees
+ */
+ float get_outerangle() { return _outer_angle; }
+
+ /**
+ * Get the remaining gain at the edge of the outer cone.
+ * @return Gain
+ */
+ float get_outergain() { return _outer_gain; }
+
+ /**
+ * Set the velocity vector (in meters per second) of this sound.
+ * This is in the local frame coordinate system; x=north, y=east, z=down
+ * @param Velocity vector
+ */
+ inline void set_velocity( const SGVec3f& vel ) {
+ _velocity = vel; _changed = true;
+ }
+
+ /**
+ * Get velocity vector (in meters per second) of this sound.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @return Velocity vector
+ */
+ SGVec3f& get_velocity() { return _velocity; }
+
+
+ /**
+ * Set reference distance (in meters) of this sound.
+ * This is the distance where the gain will be half.
+ * @param dist Reference distance
+ */
+ inline void set_reference_dist( float dist ) {
+ _reference_dist = dist; _static_changed = true;
+ }
+
+ /**
+ * Get reference distance ((in meters) of this sound.
+ * This is the distance where the gain will be half.
+ * @return Reference distance
+ */
+ inline float get_reference_dist() { return _reference_dist; }
+
+
+ /**
+ * Set maximum distance (in meters) of this sound.
+ * This is the distance where this sound is no longer audible.
+ * @param dist Maximum distance
+ */
+ inline void set_max_dist( float dist ) {
+ _max_dist = dist; _static_changed = true;
+ }
+
+ /**
+ * Get maximum distance (in meters) of this sound.
+ * This is the distance where this sound is no longer audible.
+ * @return dist Maximum distance
+ */
+ inline float get_max_dist() { return _max_dist; }
+
+ /**
+ * Get the reference name of this audio sample.
+ * @return Sample name
+ */
+ inline std::string get_sample_name() const { return _refname; }
+
+ void update_pos_and_orientation();
+
+private:
+
+ // Position of the source sound.
+ SGVec3d _absolute_pos; // absolute position
+ SGVec3d _relative_pos; // position relative to the base position
+ SGVec3d _direction; // orientation offset
+ SGVec3f _velocity; // Velocity of the source sound.
+
+ // The position and orientation of this sound
+ SGQuatd _orientation; // base orientation
+ SGVec3f _orivec; // orientation vector for OpenAL
+ SGVec3d _base_pos; // base position
+
+ SGQuatd _rotation;
+
+ std::string _refname; // name or file path
+ unsigned char* _data;
+
+ // configuration values
+ int _format;
+ size_t _size;
+ int _freq;
+
+ // Buffers hold sound data.
+ bool _valid_buffer;
+ unsigned int _buffer;
+
+ // Sources are points emitting sound.
+ bool _valid_source;
+ unsigned int _source;
+
+ // The orientation of this sound (direction and cut-off angles)
+ float _inner_angle;
+ float _outer_angle;
+ float _outer_gain;
+
+ float _pitch;
+ float _volume;
+ float _master_volume;
+ float _reference_dist;
+ float _max_dist;
+ bool _loop;
+
+ bool _playing;
+ bool _changed;
+ bool _static_changed;
+ bool _is_file;
+
+ string random_string();
};
// <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
// 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.
+// 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_config.h>
#endif
-#include <simgear/compiler.h>
-
-#if defined(__APPLE__)
-# include <OpenAL/al.h>
-# include <OpenAL/alc.h>
+#if defined( __APPLE__ )
+# include <OpenAL/alut.h>
#else
-# include <AL/al.h>
-# include <AL/alc.h>
-#endif
-
-#if defined (__APPLE__)
-# ifdef __GNUC__
-# if ( __GNUC__ >= 3 ) && ( __GNUC_MINOR__ >= 3 )
-// # include <math.h>
-inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
-# else
- // any C++ header file undefines isinf and isnan
- // so this should be included before <iostream>
- // the functions are STILL in libm (libSystem on mac os x)
-extern "C" int isnan (double);
-extern "C" int isinf (double);
-# endif
-# else
-// inline int (isinf)(double r) { return isinf(r); }
-// inline int (isnan)(double r) { return isnan(r); }
-# endif
-#endif
-
-#if defined (__FreeBSD__)
-# if __FreeBSD_version < 500000
- extern "C" {
- inline int isnan(double r) { return !(r <= 0 || r >= 0); }
- }
-# endif
-#endif
-
-#if defined (__CYGWIN__)
-#include <ieeefp.h>
+# include <AL/alut.h>
#endif
-
#include <iostream>
+#include <algorithm>
+
+#include "soundmgr_openal.hxx"
+#include <simgear/structure/exception.hxx>
#include <simgear/debug/logstream.hxx>
#include <simgear/misc/sg_path.hxx>
+#include <simgear/math/SGMath.hxx>
-#include "soundmgr_openal.hxx"
+extern bool isNaN(float *v);
-#if defined(__MINGW32__)
-#define isnan(x) _isnan(x)
-#endif
+#define MAX_SOURCES 128
//
// Sound Manager
//
+int SGSoundMgr::_alut_init = 0;
+
// constructor
-SGSoundMgr::SGSoundMgr() {
+SGSoundMgr::SGSoundMgr() :
+ _working(false),
+ _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)
+{
+#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
+ if (_alut_init == 0) {
+ if ( !alutInitWithoutContext(NULL, NULL) ) {
+ testForALUTError("alut initialization");
+ return;
+ }
+ }
+ _alut_init++;
+#endif
+}
- SG_LOG( SG_GENERAL, SG_INFO, "Initializing OpenAL sound manager" );
+// destructor
+
+SGSoundMgr::~SGSoundMgr() {
- // initialize OpenAL
+ stop();
#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
- if (!alutInit(NULL, NULL))
- {
- ALenum error = alutGetError ();
- SG_LOG( SG_GENERAL, SG_ALERT, "Audio initialization failed!" );
- SG_LOG( SG_GENERAL, SG_ALERT, " "+string(alutGetErrorString(error)));
- working = false;
- context = 0;
- return;
+ _alut_init--;
+ if (_alut_init == 0) {
+ alutExit ();
}
- else
- {
- working = true;
- context = alcGetCurrentContext();
+#endif
+}
+
+// initialize the sound manager
+void SGSoundMgr::init(const char *devname) {
+
+ SG_LOG( SG_GENERAL, SG_INFO, "Initializing OpenAL sound manager" );
+
+ ALCdevice *device = alcOpenDevice(devname);
+ if ( testForError(device, "Audio device not available, trying default") ) {
+ device = alcOpenDevice(NULL);
+ if (testForError(device, "Default Audio device not available.") ) {
+ return;
+ }
}
-#else
- if ( (dev = alcOpenDevice( NULL )) != NULL
- && ( context = alcCreateContext( dev, NULL )) != NULL ) {
- working = true;
- alcMakeContextCurrent( context );
- } else {
- working = false;
- context = 0;
- SG_LOG( SG_GENERAL, SG_ALERT, "Audio initialization failed!" );
+
+ ALCcontext *context = alcCreateContext(device, NULL);
+ if ( testForError(context, "Unable to create a valid context.") ) {
+ alcCloseDevice (device);
return;
}
-#endif
- listener_pos[0] = 0.0;
- listener_pos[1] = 0.0;
- listener_pos[2] = 0.0;
-
- listener_vel[0] = 0.0;
- listener_vel[1] = 0.0;
- listener_vel[2] = 0.0;
-
- listener_ori[0] = 0.0;
- listener_ori[1] = 0.0;
- listener_ori[2] = -1.0;
- listener_ori[3] = 0.0;
- listener_ori[4] = 1.0;
- listener_ori[5] = 0.0;
+ if ( !alcMakeContextCurrent(context) ) {
+ testForALCError("context initialization");
+ alcDestroyContext (context);
+ alcCloseDevice (device);
+ return;
+ }
+
+ if (_context != NULL)
+ SG_LOG(SG_GENERAL, SG_ALERT, "context is already assigned");
+ _context = context;
+ _working = true;
+
+ _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;
alListenerf( AL_GAIN, 0.0f );
- alListenerfv( AL_POSITION, listener_pos );
- alListenerfv( AL_VELOCITY, listener_vel );
- alListenerfv( AL_ORIENTATION, listener_ori );
- alGetError();
- if ( alGetError() != AL_NO_ERROR) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Oops AL error after audio initialization!" );
- }
+ alListenerfv( AL_ORIENTATION, _at_up_vec );
+ alListenerfv( AL_POSITION, SGVec3f::zeros().data() );
+ alListenerfv( AL_VELOCITY, SGVec3f::zeros().data() );
- // exaggerate the ear candy?
alDopplerFactor(1.0);
- alDopplerVelocity(340.0); // speed of sound in meters per second.
-}
+ alDopplerVelocity(340.3); // speed of sound in meters per second.
-// destructor
+ // gain = AL_REFERENCE_DISTANCE / (AL_REFERENCE_DISTANCE +
+ // AL_ROLLOFF_FACTOR * (distance - AL_REFERENCE_DISTANCE));
+ alDistanceModel(AL_INVERSE_DISTANCE_CLAMPED);
-SGSoundMgr::~SGSoundMgr() {
+ testForALError("listener initialization");
-#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
- alutExit ();
-#else
- if (context)
- alcDestroyContext( context );
-#endif
+ // get a free source one at a time
+ // if an error is returned no more (hardware) sources are available
+ for (unsigned int i=0; i<MAX_SOURCES; i++) {
+ ALuint source;
+ ALenum error;
+
+ alGetError();
+ alGenSources(1, &source);
+ error = alGetError();
+ if ( error == AL_NO_ERROR ) {
+ _free_sources.push_back( source );
+ }
+ else break;
+ }
+
+ string vendor = (const char *)alGetString(AL_VENDOR);
+ string renderer = (const char *)alGetString(AL_RENDERER);
+ if ( vendor != "OpenAL Community" ||
+ (renderer != "Software" && renderer != "OpenAL Sample Implementation")
+ )
+ {
+ _bad_doppler = true;
+ }
+
+ if (_free_sources.size() == 0) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "Unable to grab any OpenAL sources!");
+ }
}
+void SGSoundMgr::activate() {
+ if ( _working ) {
+ _active = true;
+ sample_group_map_iterator sample_grp_current = _sample_groups.begin();
+ sample_group_map_iterator sample_grp_end = _sample_groups.end();
+ for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
+ SGSampleGroup *sgrp = sample_grp_current->second;
+ sgrp->activate();
+ }
+ }
+}
-// initialize the sound manager
-void SGSoundMgr::init() {
- //
- // Remove the samples from the sample manager.
- //
- samples.clear();
+// stop the sound manager
+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();
+ 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];
+ alDeleteSources( 1 , &source );
+ }
+ _free_sources.clear();
+
+ // clear any OpenAL buffers before shutting down
+ buffer_map_iterator buffers_current = _buffers.begin();
+ buffer_map_iterator buffers_end = _buffers.end();
+ for ( ; buffers_current != buffers_end; ++buffers_current ) {
+ refUint ref = buffers_current->second;
+ ALuint buffer = ref.id;
+ alDeleteBuffers(1, &buffer);
+ }
+ _buffers.clear();
+
+ if (_working) {
+ _working = false;
+ _active = false;
+ _context = alcGetCurrentContext();
+ _device = alcGetContextsDevice(_context);
+ alcDestroyContext(_context);
+ alcCloseDevice(_device);
+ _context = NULL;
+ }
}
+void SGSoundMgr::suspend() {
+ if (_working) {
+ sample_group_map_iterator sample_grp_current = _sample_groups.begin();
+ sample_group_map_iterator sample_grp_end = _sample_groups.end();
+ for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
+ SGSampleGroup *sgrp = sample_grp_current->second;
+ sgrp->stop();
+ }
+ _active = false;
+ }
+}
+
+void SGSoundMgr::resume() {
+ if (_working) {
+ sample_group_map_iterator sample_grp_current = _sample_groups.begin();
+ sample_group_map_iterator sample_grp_end = _sample_groups.end();
+ for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
+ SGSampleGroup *sgrp = sample_grp_current->second;
+ sgrp->resume();
+ }
+ _active = true;
+ }
+}
void SGSoundMgr::bind ()
{
- // no properties
+ _free_sources.clear();
+ _free_sources.reserve( MAX_SOURCES );
+ _sources_in_use.clear();
+ _sources_in_use.reserve( MAX_SOURCES );
}
void SGSoundMgr::unbind ()
{
- // no properties
-}
+ _sample_groups.clear();
+ // delete free sources
+ for (unsigned int i=0; i<_free_sources.size(); i++) {
+ ALuint source = _free_sources[i];
+ alDeleteSources( 1 , &source );
+ }
-// run the audio scheduler
-void SGSoundMgr::update( double dt ) {
+ _free_sources.clear();
+ _sources_in_use.clear();
}
+// run the audio scheduler
+void SGSoundMgr::update( double dt ) {
+ if (_active) {
+ alcSuspendContext(_context);
-void
-SGSoundMgr::pause ()
-{
- if (context) {
- alcSuspendContext( context );
- if ( alGetError() != AL_NO_ERROR) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Oops AL error after soundmgr pause()!" );
+ if (_changed) {
+ update_pos_and_orientation();
}
- }
-}
+ sample_group_map_iterator sample_grp_current = _sample_groups.begin();
+ sample_group_map_iterator sample_grp_end = _sample_groups.end();
+ for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
+ SGSampleGroup *sgrp = sample_grp_current->second;
+ sgrp->update(dt);
+ }
-void
-SGSoundMgr::resume ()
-{
- if (context) {
- alcProcessContext( context );
- if ( alGetError() != AL_NO_ERROR) {
- SG_LOG( SG_GENERAL, SG_ALERT,
- "Oops AL error after soundmgr resume()!" );
+ if (_changed) {
+#if 0
+if (isNaN(_at_up_vec)) printf("NaN in listener orientation\n");
+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_POSITION, toVec3f(_absolute_pos).data() );
+
+ SGQuatd hlOr = SGQuatd::fromLonLat( _geod_pos );
+ SGVec3d velocity = SGVec3d::zeros();
+ if ( _velocity[0] || _velocity[1] || _velocity[2] ) {
+ velocity = hlOr.backTransform(_velocity*SG_FEET_TO_METER);
+ }
+
+ if ( _bad_doppler ) {
+ velocity *= 100.0f;
+ }
+
+ alListenerfv( AL_VELOCITY, toVec3f(velocity).data() );
+ // alDopplerVelocity(340.3); // TODO: altitude dependent
+ testForALError("update");
+ _changed = false;
}
+
+ alcProcessContext(_context);
}
}
-
-// add a sound effect, return true if successful
-bool SGSoundMgr::add( SGSoundSample *sound, const string& refname ) {
-
- sample_map_iterator sample_it = samples.find( refname );
- if ( sample_it != samples.end() ) {
- // sound already exists
+// 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 already exists
return false;
}
- samples[refname] = sound;
+ if (_active) sgrp->activate();
+ _sample_groups[refname] = sgrp;
return true;
}
// remove a sound effect, return true if successful
-bool SGSoundMgr::remove( const string &refname ) {
-
- sample_map_iterator sample_it = samples.find( refname );
- if ( sample_it != samples.end() ) {
- // first stop the sound from playing (so we don't bomb the
- // audio scheduler)
- samples.erase( sample_it );
-
- // cout << "sndmgr: removed -> " << refname << endl;
- return true;
- } else {
- // cout << "sndmgr: failed remove -> " << refname << endl;
+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 was not found.
return false;
}
+
+ _sample_groups.erase( sample_grp_it );
+
+ return true;
}
// return true of the specified sound exists in the sound manager system
bool SGSoundMgr::exists( const string &refname ) {
- sample_map_iterator sample_it = samples.find( refname );
- if ( sample_it != samples.end() ) {
- return true;
- } else {
+ 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;
}
-// return a pointer to the SGSoundSample if the specified sound exists
+// return a pointer to the SGSampleGroup if the specified sound exists
// in the sound manager system, otherwise return NULL
-SGSoundSample *SGSoundMgr::find( const string &refname ) {
- sample_map_iterator sample_it = samples.find( refname );
- if ( sample_it != samples.end() ) {
- return sample_it->second;
- } else {
- 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 was not found.
+ if (create) {
+ SGSampleGroup* sgrp = new SGSampleGroup(this, refname);
+ add( sgrp, refname );
+ return sgrp;
+ }
+ else
+ return NULL;
}
+
+ return sample_grp_it->second;
}
-// tell the scheduler to play the indexed sample in a continuous
-// loop
-bool SGSoundMgr::play_looped( const string &refname ) {
- SGSoundSample *sample;
+void SGSoundMgr::set_volume( float v )
+{
+ _volume = v;
+ if (_volume > 1.0) _volume = 1.0;
+ if (_volume < 0.0) _volume = 0.0;
+ _changed = true;
+}
- if ( (sample = find( refname )) == NULL ) {
- return false;
- } else {
- sample->play( true );
- return true;
+// Get an unused source id
+//
+// The Sound Manager should keep track of the sources in use, the distance
+// of these sources to the listener and the volume (also based on audio cone
+// and hence orientation) of the sources.
+//
+// The Sound Manager is (and should be) the only one knowing about source
+// management. Sources further away should be suspendped to free resources for
+// newly added sounds close by.
+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);
}
+ else
+ SG_LOG( SG_GENERAL, SG_INFO, "No more free sources available\n");
+
+ return source;
}
+// Free up a source id for further use
+void SGSoundMgr::release_source( unsigned int source )
+{
+ vector<ALuint>::iterator it;
-// tell the scheduler to play the indexed sample once
-bool SGSoundMgr::play_once( const string& refname ) {
- SGSoundSample *sample;
+ it = std::find(_sources_in_use.begin(), _sources_in_use.end(), source);
+ if ( it != _sources_in_use.end() ) {
+ ALint result;
- if ( (sample = find( refname )) == NULL ) {
- return false;
- } else {
- sample->play( false );
- return true;
+ alGetSourcei( source, AL_SOURCE_STATE, &result );
+ if ( result == AL_PLAYING )
+ alSourceStop( source );
+ testForALError("release source");
+
+ alSourcei( source, AL_BUFFER, 0 );
+ _free_sources.push_back( source );
+ _sources_in_use.erase( it );
}
}
+unsigned int SGSoundMgr::request_buffer(SGSoundSample *sample)
+{
+ ALuint buffer = NO_BUFFER;
+
+ if ( !sample->is_valid_buffer() ) {
+ // sample was not yet loaded or removed again
+ string sample_name = sample->get_sample_name();
+ 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_it->second.refctr++;
+ buffer = buffer_it->second.id;
+ sample->set_buffer( buffer );
+ return buffer;
+ }
+
+ // sample name was not found in the buffer cache.
+ if ( sample->is_file() ) {
+ int freq, format;
+ size_t size;
+ bool res;
-// return true of the specified sound is currently being played
-bool SGSoundMgr::is_playing( const string& refname ) {
- SGSoundSample *sample;
+ res = load(sample_name, &sample_data, &format, &size, &freq);
+ if (res == false) return buffer;
- if ( (sample = find( refname )) == NULL ) {
- return false;
- } else {
- return ( sample->is_playing() );
+ sample->set_frequency( freq );
+ sample->set_format( format );
+ sample->set_size( size );
+ }
+ else
+ sample_data = sample->get_data();
+
+ // create an OpenAL buffer handle
+ alGenBuffers(1, &buffer);
+ if ( !testForALError("generate buffer") ) {
+ // Copy data to the internal OpenAL buffer
+
+ ALenum format = sample->get_format();
+ ALsizei size = sample->get_size();
+ ALsizei freq = sample->get_frequency();
+ alBufferData( buffer, format, sample_data, size, freq );
+
+ if ( sample->is_file() ) free(sample_data);
+
+ if ( !testForALError("buffer add data") ) {
+ sample->set_buffer(buffer);
+ _buffers[sample_name] = refUint(buffer);
+ }
+ }
}
+ else {
+ buffer = sample->get_buffer();
}
+ return buffer;
+}
-// immediate stop playing the sound
-bool SGSoundMgr::stop( const string& refname ) {
- SGSoundSample *sample;
+void SGSoundMgr::release_buffer(SGSoundSample *sample)
+{
+ string sample_name = sample->get_sample_name();
+ buffer_map_iterator buffer_it = _buffers.find( sample_name );
+ if ( buffer_it == _buffers.end() ) {
+ // buffer was not found
+ return;
+ }
+
+ sample->no_valid_buffer();
+ buffer_it->second.refctr--;
+ if (buffer_it->second.refctr == 0) {
+ ALuint buffer = buffer_it->second.id;
+ alDeleteBuffers(1, &buffer);
+ _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];
+
+ // static const SGQuatd q(-0.5, -0.5, 0.5, 0.5);
+ // SGQuatd hlOr = SGQuatd::fromLonLat(SGGeod::fromCart(_base_pos));
+ // SGQuatd ec2body = hlOr*_orientation;
+ _absolute_pos = _base_pos; // + ec2body.backTransform( _offset_pos );
+}
+
+bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt,
+ size_t *sz, int *frq )
+{
+ if ( !_working ) return false;
+
+ ALenum format;
+ ALsizei size;
+ ALsizei freq;
+ ALvoid *data;
- if ( (sample = find( refname )) == NULL ) {
+#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
+ ALfloat freqf;
+ data = alutLoadMemoryFromFile(samplepath.c_str(), &format, &size, &freqf );
+ freq = (ALsizei)freqf;
+ if (data == NULL) {
+ int error = alutGetError();
+ string msg = "Failed to load wav file: ";
+ msg.append(alutGetErrorString(error));
+ throw sg_io_exception(msg.c_str(), sg_location(samplepath));
return false;
- } else {
- sample->stop();
- return true;
}
+
+#else
+ ALbyte *fname = (ALbyte *)samplepath.c_str();
+# if defined (__APPLE__)
+ alutLoadWAVFile( fname, &format, &data, &size, &freq );
+# else
+ ALboolean loop;
+ alutLoadWAVFile( fname, &format, &data, &size, &freq, &loop );
+# endif
+ ALenum error = alGetError();
+ if ( error != AL_NO_ERROR ) {
+ string msg = "Failed to load wav file: ";
+ msg.append(alGetString(error));
+ throw sg_io_exception(msg.c_str(), sg_location(samplepath));
+ return false;
+ }
+#endif
+
+ *dbuf = (void *)data;
+ *fmt = (int)format;
+ *sz = (size_t)size;
+ *frq = (int)freq;
+
+ return true;
}
+vector<const char*> SGSoundMgr::get_available_devices()
+{
+ vector<const char*> devices;
+ const ALCchar *s;
-// set source position of all managed sounds
-void SGSoundMgr::set_source_pos_all( ALfloat *pos ) {
- if ( isnan(pos[0]) || isnan(pos[1]) || isnan(pos[2]) ) {
- // bail if a bad position is passed in
- return;
+ if (alcIsExtensionPresent(NULL, "ALC_enumerate_all_EXT") == AL_TRUE) {
+ s = alcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER);
+ } else {
+ s = alcGetString(NULL, ALC_DEVICE_SPECIFIER);
}
- sample_map_iterator sample_current = samples.begin();
- sample_map_iterator sample_end = samples.end();
- for ( ; sample_current != sample_end; ++sample_current ) {
- SGSoundSample *sample = sample_current->second;
- sample->set_source_pos( pos );
+ if (s) {
+ ALCchar *nptr, *ptr = (ALCchar *)s;
+
+ nptr = ptr;
+ while (*(nptr += strlen(ptr)+1) != 0)
+ {
+ devices.push_back(ptr);
+ ptr = nptr;
+ }
+ devices.push_back(ptr);
}
+
+ return devices;
}
-// set source velocity of all managed sounds
-void SGSoundMgr::set_source_vel_all( ALfloat *vel ) {
- if ( isnan(vel[0]) || isnan(vel[1]) || isnan(vel[2]) ) {
- // bail if a bad velocity is passed in
- return;
+bool SGSoundMgr::testForError(void *p, string s)
+{
+ if (p == NULL) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "Error: " << s);
+ return true;
+ }
+ return false;
+}
+
+
+bool SGSoundMgr::testForALError(string s)
+{
+ ALenum error = alGetError();
+ if (error != AL_NO_ERROR) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "AL Error (sound manager): "
+ << alGetString(error) << " at " << s);
+ return true;
}
+ return false;
+}
- sample_map_iterator sample_current = samples.begin();
- sample_map_iterator sample_end = samples.end();
- for ( ; sample_current != sample_end; ++sample_current ) {
- SGSoundSample *sample = sample_current->second;
- sample->set_source_vel( vel, listener_vel );
+bool SGSoundMgr::testForALCError(string s)
+{
+ ALCenum error;
+ error = alcGetError(_device);
+ if (error != ALC_NO_ERROR) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "ALC Error (sound manager): "
+ << alcGetString(_device, error) << " at "
+ << s);
+ return true;
}
+ return false;
+}
+
+bool SGSoundMgr::testForALUTError(string s)
+{
+#if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
+ ALenum error;
+ error = alutGetError ();
+ if (error != ALUT_ERROR_NO_ERROR) {
+ SG_LOG( SG_GENERAL, SG_ALERT, "ALUT Error (sound manager): "
+ << alutGetErrorString(error) << " at "
+ << s);
+ return true;
+ }
+#endif
+ return false;
}
// <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
// 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.
+// along with this program; if not, write to the Free Software Foundation,
+// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
# error This library requires C++
#endif
-#include <simgear/compiler.h>
-
#include <string>
+#include <vector>
#include <map>
-#if defined( __APPLE__ )
+#if defined(__APPLE__)
+# define AL_ILLEGAL_ENUM AL_INVALID_ENUM
+# define AL_ILLEGAL_COMMAND AL_INVALID_OPERATION
# include <OpenAL/al.h>
# include <OpenAL/alc.h>
+# include <OpenAL/alut.h>
+#elif defined(OPENALSDK)
+# include <al.h>
+# include <alc.h>
+# include <AL/alut.h>
#else
# include <AL/al.h>
# include <AL/alc.h>
+# include <AL/alut.h>
+#endif
+
+#ifndef ALC_ALL_DEVICES_SPECIFIER
+# define ALC_ALL_DEVICES_SPECIFIER 0x1013
#endif
+#include <simgear/compiler.h>
+#include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/math/SGMathFwd.hxx>
+
+#include "sample_group.hxx"
#include "sample_openal.hxx"
-using std::map;
using std::string;
+struct refUint {
+ unsigned int refctr;
+ ALuint id;
+
+ refUint() { refctr = 0; id = (ALuint)-1; };
+ refUint(ALuint i) { refctr = 1; id = i; };
+ ~refUint() {};
+};
-typedef map < string, SGSharedPtr<SGSoundSample> > sample_map;
-typedef sample_map::iterator sample_map_iterator;
-typedef sample_map::const_iterator const_sample_map_iterator;
+typedef std::map < string, refUint > buffer_map;
+typedef buffer_map::iterator buffer_map_iterator;
+typedef buffer_map::const_iterator const_buffer_map_iterator;
+typedef std::map < 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;
/**
- * Manage a collection of SGSoundSample instances
+ * Manage a collection of SGSampleGroup instances
*/
-class SGSoundMgr
+class SGSoundMgr : public SGSubsystem
{
-
- ALCdevice *dev;
- ALCcontext *context;
-
- // Position of the listener.
- ALfloat listener_pos[3];
-
- // Velocity of the listener.
- ALfloat listener_vel[3];
-
- // Orientation of the listener. (first 3 elements are "at", second
- // 3 are "up")
- ALfloat listener_ori[6];
-
- sample_map samples;
-
- bool working;
- double safety;
-
public:
SGSoundMgr();
~SGSoundMgr();
+ void init(const char *devname = NULL);
+ void bind();
+ void unbind();
+ void update(double dt);
+
+ void suspend();
+ void resume();
+ void stop();
+
+ inline void reinit() { stop(); init(); }
/**
- * (re) initialize the sound manager.
+ * Test is the sound manager is in a working condition.
+ * @return true is the sound manager is working
*/
- void init();
-
+ inline bool is_working() const { return _working; }
/**
- * Bind properties for the sound manager.
+ * Set the sound manager to a working condition.
*/
- void bind();
-
+ void activate();
/**
- * Unbind properties for the sound manager.
+ * Test is the sound manager is in an active and working condition.
+ * @return true is the sound manager is active
*/
- void unbind();
-
+ inline bool is_active() const { return _active; }
/**
- * Run the audio scheduler.
+ * Register a sample group to the sound manager.
+ * @para sgrp Pointer to a sample group to add
+ * @param refname Reference name of the sample group
+ * @return true if successful, false otherwise
*/
- void update(double dt);
+ bool add( SGSampleGroup *sgrp, const string& refname );
+ /**
+ * Remove a sample group from the sound manager.
+ * @param refname Reference name of the sample group to remove
+ * @return true if successful, false otherwise
+ */
+ bool remove( const string& refname );
/**
- * Pause all sounds.
+ * Test if a specified sample group is registered at the sound manager
+ * @param refname Reference name of the sample group test for
+ * @return true if the specified sample group exists
*/
- void pause();
+ bool exists( const string& refname );
+ /**
+ * Find a specified sample group in the sound manager
+ * @param refname Reference name of the sample group to find
+ * @return A pointer to the SGSampleGroup
+ */
+ SGSampleGroup *find( const string& refname, bool create = false );
/**
- * Resume all sounds.
+ * Set the Cartesian position of the sound manager.
+ * @param pos OpenAL listener position
*/
- void resume();
+ void set_position( const SGVec3d& pos, const SGGeod& pos_geod ) {
+ _base_pos = pos; _geod_pos = pos_geod; _changed = true;
+ }
+ void set_position_offset( const SGVec3d& pos ) {
+ _offset_pos = pos; _changed = true;
+ }
/**
- * is audio working?
+ * Get the position of the sound manager.
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right
+ * @return OpenAL listener position
*/
- inline bool is_working() const { return working; }
+ SGVec3d& get_position() { return _absolute_pos; }
/**
- * reinitialize the sound manager
+ * Set the velocity vector (in meters per second) of the sound manager
+ * This is the horizontal local frame; x=north, y=east, z=down
+ * @param Velocity vector
*/
- inline void reinit() { init(); }
+ void set_velocity( const SGVec3d& vel ) {
+ _velocity = vel; _changed = true;
+ }
/**
- * add a sound effect, return true if successful
+ * Get the velocity vector of the sound manager
+ * This is in the same coordinate system as OpenGL; y=up, z=back, x=right.
+ * @return Velocity vector of the OpenAL listener
*/
- bool add( SGSoundSample *sound, const string& refname);
+ inline SGVec3f get_velocity() { return toVec3f(_velocity); }
- /**
- * remove a sound effect, return true if successful
+ /**
+ * Set the orientation of the sound manager
+ * @param ori Quaternation containing the orientation information
*/
- bool remove( const string& refname );
+ void set_orientation( const SGQuatd& ori ) {
+ _orientation = ori; _changed = true;
+ }
/**
- * return true of the specified sound exists in the sound manager system
+ * Get the orientation of the sound manager
+ * @return Quaternation containing the orientation information
*/
- bool exists( const string& refname );
+ inline const SGQuatd& get_orientation() { return _orientation; }
/**
- * return a pointer to the SGSoundSample if the specified sound
- * exists in the sound manager system, otherwise return NULL
+ * 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
*/
- SGSoundSample *find( const string& refname );
+ SGVec3f get_direction() {
+ return SGVec3f(_at_up_vec[0], _at_up_vec[1], _at_up_vec[2]);
+ }
+
+ enum {
+ NO_SOURCE = (unsigned int)-1,
+ NO_BUFFER = (unsigned int)-1
+ };
/**
- * tell the scheduler to play the indexed sample in a continuous
- * loop
+ * Set the master volume.
+ * @param vol Volume (must be between 0.0 and 1.0)
*/
- bool play_looped( const string& refname );
+ void set_volume( float vol );
/**
- * tell the scheduler to play the indexed sample once
+ * Get the master volume.
+ * @return Volume (must be between 0.0 and 1.0)
*/
- bool play_once( const string& refname );
+ inline float get_volume() { return _volume; }
/**
- * return true of the specified sound is currently being played
+ * Get a free OpenAL source-id
+ * @return NO_SOURCE if no source is available
*/
- bool is_playing( const string& refname );
+ unsigned int request_source();
/**
- * immediate stop playing the sound
+ * Free an OpenAL source-id for future use
+ * @param source OpenAL source-id to free
*/
- bool stop( const string& refname );
+ void release_source( unsigned int source );
/**
- * set overall volume for the application.
- * @param vol 1.0 is default, must be greater than 0
+ * Get a free OpenAL buffer-id
+ * The buffer-id will be asigned to the sample by calling this function.
+ * @param sample Pointer to an audio sample to assign the buffer-id to
+ * @return NO_BUFFER if loading of the buffer failed.
*/
- inline void set_volume( const ALfloat vol ) {
- if ( vol > 0.0 ) {
- alListenerf( AL_GAIN, vol );
- }
- }
+ unsigned int request_buffer(SGSoundSample *sample);
/**
- * set the position of the listener (in opengl coordinates)
+ * Free an OpenAL buffer-id for this sample
+ * @param sample Pointer to an audio sample for which to free the buffer
*/
- inline void set_listener_pos( ALfloat *pos ) {
- listener_pos[0] = pos[0];
- listener_pos[1] = pos[1];
- listener_pos[2] = pos[2];
- alListenerfv( AL_POSITION, listener_pos );
- }
+ void release_buffer( SGSoundSample *sample );
/**
- * set the velocity of the listener (in opengl coordinates)
+ * Test if the position of the sound manager has changed.
+ * The value will be set to false upon the next call to update_late()
+ * @return true if the position has changed
*/
- inline void set_listener_vel( ALfloat *vel ) {
- listener_vel[0] = vel[0];
- listener_vel[1] = vel[1];
- listener_vel[2] = vel[2];
-#ifdef USE_OPEN_AL_DOPPLER
- alListenerfv( AL_VELOCITY, listener_vel );
-#endif
- }
+ inline bool has_changed() { return _changed; }
/**
- * set the orientation of the listener (in opengl coordinates)
- *
- * 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.
- */
- inline void set_listener_orientation( ALfloat *ori ) {
- listener_ori[0] = ori[0];
- listener_ori[1] = ori[1];
- listener_ori[2] = ori[2];
- listener_ori[3] = ori[3];
- listener_ori[4] = ori[4];
- listener_ori[5] = ori[5];
- alListenerfv( AL_ORIENTATION, listener_ori );
- }
+ * Some implementations seem to need the velocity miltyplied by a
+ * factor of 100 to make them distinct. I've not found if this is
+ * a problem in the implementation or in out code. Until then
+ * this function is used to detect the problematic implementations.
+ */
+ inline bool bad_doppler_effect() { return _bad_doppler; }
/**
- * set the positions of all managed sound sources
+ * Load a sample file and return it's configuration and data.
+ * @param samplepath Path to the file to load
+ * @param data Pointer to a variable that points to the allocated data
+ * @param format Pointer to a vairable that gets the OpenAL format
+ * @param size Pointer to a vairable that gets the sample size in bytes
+ * @param freq Pointer to a vairable that gets the sample frequency in Herz
+ * @return true if succesful, false on error
*/
- void set_source_pos_all( ALfloat *pos );
+ bool load(string &samplepath, void **data, int *format,
+ size_t *size, int *freq );
/**
- * set the velocities of all managed sound sources
+ * Get a list of available playback devices.
*/
- void set_source_vel_all( ALfloat *pos );
+ vector<const char*> get_available_devices();
+
+private:
+ static int _alut_init;
+
+ bool _working;
+ 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;
+
+ vector<ALuint> _free_sources;
+ vector<ALuint> _sources_in_use;
+
+ bool _bad_doppler;
+
+ bool testForALError(string s);
+ bool testForALCError(string s);
+ bool testForALUTError(string s);
+ bool testForError(void *p, string s);
+
+ void update_pos_and_orientation();
+ void update_sample_config( SGSampleGroup *sound );
};
static double _snd_inv(double v) { return (v == 0) ? 1e99 : 1/v; }
static double _snd_abs(double v) { return (v >= 0) ? v : -v; }
static double _snd_sqrt(double v) { return sqrt(fabs(v)); }
-static double _snd_log10(double v) { return log10(fabs(v)); }
-static double _snd_log(double v) { return log(fabs(v)); }
+static double _snd_log10(double v) { return log10(fabs(v)+1e-9); }
+static double _snd_log(double v) { return log(fabs(v)+1e-9); }
// static double _snd_sqr(double v) { return v*v; }
// static double _snd_pow3(double v) { return v*v*v; }
const char *name;
double (*fn)(double);
} __sound_fn[] = {
-// {"lin", _snd_lin},
{"inv", _snd_inv},
{"abs", _snd_abs},
{"sqrt", _snd_sqrt},
{"log", _snd_log10},
{"ln", _snd_log},
-// {"sqr", _snd_sqr},
-// {"pow3", _snd_pow3},
{"", NULL}
};
}
void
-SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node, SGSoundMgr *sndmgr,
+SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node,
+ SGSampleGroup *sgrp, SGSampleGroup *avionics,
const string &path)
{
// set global sound properties
//
- if (sndmgr->is_working() == false) {
- return;
- }
-
_name = node->getStringValue("name", "");
SG_LOG(SG_GENERAL, SG_DEBUG, "Loading sound information for: " << _name );
} else {
_mode = SGXmlSound::ONCE;
-
- if ( strcmp(mode_str, "") )
- SG_LOG(SG_GENERAL,SG_INFO, "Unknown sound mode for '" << _name << "', default to 'once'");
}
+ bool is_avionics = false;
+ const char *type_str = node->getStringValue("type", "fx");
+ if ( !strcmp(type_str, "avionics") )
+ is_avionics = true;
+
_property = root->getNode(node->getStringValue("property", ""), true);
SGPropertyNode *condition = node->getChild("condition");
if (condition != NULL)
}
- float reference_dist = node->getDoubleValue("reference-dist", 500.0);
- float max_dist = node->getDoubleValue("max-dist", 3000.0);
-
+ // rule of thumb: make reference distance a 100th of the maximum distance.
+ float reference_dist = node->getDoubleValue("reference-dist", 60.0);
+ float max_dist = node->getDoubleValue("max-dist", 6000.0);
+
//
// set pitch properties
//
//
// Relative position
//
- sgVec3 offset_pos;
- sgSetVec3( offset_pos, 0.0, 0.0, 0.0 );
- SGPropertyNode_ptr pos = node->getChild("position");
- if ( pos != NULL ) {
- offset_pos[0] = pos->getDoubleValue("x", 0.0);
- offset_pos[1] = -pos->getDoubleValue("y", 0.0);
- offset_pos[2] = pos->getDoubleValue("z", 0.0);
+ SGVec3f offset_pos = SGVec3f::zeros();
+ SGPropertyNode_ptr prop = node->getChild("position");
+ if ( prop != NULL ) {
+ offset_pos[0] = -prop->getDoubleValue("x", 0.0);
+ offset_pos[1] = -prop->getDoubleValue("y", 0.0);
+ offset_pos[2] = -prop->getDoubleValue("z", 0.0);
}
//
// Orientation
//
- sgVec3 dir;
- float inner, outer, outer_gain;
- sgSetVec3( dir, 0.0, 0.0, 0.0 );
- inner = outer = 360.0;
- outer_gain = 0.0;
- pos = node->getChild("orientation");
- if ( pos != NULL ) {
- dir[0] = pos->getDoubleValue("x", 0.0);
- dir[1] = -pos->getDoubleValue("y", 0.0);
- dir[2] = pos->getDoubleValue("z", 0.0);
- inner = pos->getDoubleValue("inner-angle", 360.0);
- outer = pos->getDoubleValue("outer-angle", 360.0);
- outer_gain = pos->getDoubleValue("outer-gain", 0.0);
+ SGVec3f dir = SGVec3f::zeros();
+ float inner = 360.0;
+ float outer = 360.0;
+ float outer_gain = 0.0;
+ prop = node->getChild("orientation");
+ if ( prop != NULL ) {
+ dir = SGVec3f(-prop->getFloatValue("x", 0.0),
+ -prop->getFloatValue("y", 0.0),
+ -prop->getFloatValue("z", 0.0));
+ inner = prop->getFloatValue("inner-angle", 360.0);
+ outer = prop->getFloatValue("outer-angle", 360.0);
+ outer_gain = prop->getFloatValue("outer-gain", 0.0);
}
-
+
//
// Initialize the sample
//
- _mgr = sndmgr;
- if ( (_sample = _mgr->find(_name)) == NULL ) {
- // FIXME: Does it make sense to overwrite a previous entry's
- // configuration just because a new entry has the same name?
- // Note that we can't match on identical "path" because we the
- // new entry could be at a different location with different
- // configuration so we need a new sample which creates a new
- // "alSource". The semantics of what is going on here seems
- // confused and needs to be thought through more carefully.
- _sample = new SGSoundSample( path.c_str(),
- node->getStringValue("path", ""),
- false );
-
- _mgr->add( _sample, _name );
+ if (is_avionics) {
+ _sgrp = avionics;
+ } else {
+ _sgrp = sgrp;
}
-
- _sample->set_offset_pos( offset_pos );
- _sample->set_orientation(dir, inner, outer, outer_gain);
- _sample->set_volume(v);
+ _sample = new SGSoundSample( path.c_str(), node->getStringValue("path", ""));
+ _sample->set_relative_position( offset_pos );
+ _sample->set_direction( dir );
+ _sample->set_audio_cone( inner, outer, outer_gain );
_sample->set_reference_dist( reference_dist );
_sample->set_max_dist( max_dist );
- _sample->set_pitch(p);
+ _sample->set_volume( v );
+ _sample->set_pitch( p );
+ _sgrp->add( _sample, _name );
}
void
)
)
{
- if ((_mode != SGXmlSound::IN_TRANSIT) || (_stopping > MAX_TRANSIT_TIME)) {
+ if ((_mode != SGXmlSound::IN_TRANSIT) || (_stopping > MAX_TRANSIT_TIME))
+ {
if (_sample->is_playing()) {
SG_LOG(SG_GENERAL, SG_DEBUG, "Stopping audio after " << _dt_play
<< " sec: " << _name );
#include <simgear/compiler.h>
#include <simgear/props/condition.hxx>
+#include "sample_group.hxx"
#include "sample_openal.hxx"
-#include "soundmgr_openal.hxx"
static const double MAX_TRANSIT_TIME = 0.1; // 100 ms.
* @param root The root node of the programs property tree.
* @param child A pointer to the location of the current event as defined
* in the configuration file.
- * @param sndmgr A pointer to a pre-initialized sound manager class.
+ * @param sgrp A pointer to a pre-initialized sample group class.
+ * @param avionics A pointer to the pre-initialized avionics sample group.
* @param path The path where the audio files remain.
*/
- virtual void init (SGPropertyNode *, SGPropertyNode *, SGSoundMgr *,
- const string &);
+ virtual void init (SGPropertyNode *, SGPropertyNode *, SGSampleGroup *,
+ SGSampleGroup *, const string &);
/**
* Check whether an event has happened and if action has to be taken.
private:
- SGSoundMgr * _mgr;
+ SGSampleGroup * _sgrp;
SGSharedPtr<SGSoundSample> _sample;
SGSharedPtr<SGCondition> _condition;
#include "SGAtomic.hxx"
-#if defined(SGATOMIC_USE_GCC4_BUILTINS) && defined(__i386__)
+#if defined(SGATOMIC_USE_GCC4_BUILTINS) && defined (__i386__)
// Usually the apropriate functions are inlined by gcc.
// But if gcc is called with something aequivalent to -march=i386,
projects / simgear.git / commitdiff