1 // sample_openal.cxx -- Audio sample encapsulation class
3 // Written by Curtis Olson, started April 2004.
4 // Modified to match the new SoundSystem by Erik Hofman, October 2009
6 // Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
7 // Copyright (C) 2009 Erik Hofman <erik@ehofman.com>
9 // This program is free software; you can redistribute it and/or
10 // modify it under the terms of the GNU General Public License as
11 // published by the Free Software Foundation; either version 2 of the
12 // License, or (at your option) any later version.
14 // This program is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 // General Public License for more details.
19 // You should have received a copy of the GNU General Public License
20 // along with this program; if not, write to the Free Software Foundation,
21 // Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 # include <simgear_config.h>
29 #include <stdlib.h> // rand(), free()
32 #include <simgear/debug/logstream.hxx>
33 #include <simgear/structure/exception.hxx>
34 #include <simgear/misc/sg_path.hxx>
35 #include <simgear/misc/ResourceManager.hxx>
37 #include "soundmgr_openal.hxx"
38 #include "sample_openal.hxx"
39 #include "soundmgr_openal_private.hxx"
48 SGSoundSample::SGSoundSample() :
49 _absolute_pos(SGVec3d::zeros()),
50 _relative_pos(SGVec3d::zeros()),
51 _direction(SGVec3d::zeros()),
52 _velocity(SGVec3f::zeros()),
53 _orientation(SGQuatd::zeros()),
54 _orivec(SGVec3f::zeros()),
55 _base_pos(SGVec3d::zeros()),
56 _rotation(SGQuatd::zeros()),
57 _refname(random_string()),
59 _format(AL_FORMAT_MONO8),
63 _buffer(SGSoundMgr::NO_BUFFER),
65 _source(SGSoundMgr::NO_SOURCE),
72 _reference_dist(500.0),
77 _static_changed(true),
84 SGSoundSample::SGSoundSample(const char *file, const SGPath& currentDir) :
85 _absolute_pos(SGVec3d::zeros()),
86 _relative_pos(SGVec3d::zeros()),
87 _direction(SGVec3d::zeros()),
88 _velocity(SGVec3f::zeros()),
89 _orientation(SGQuatd::zeros()),
90 _orivec(SGVec3f::zeros()),
91 _base_pos(SGVec3d::zeros()),
92 _rotation(SGQuatd::zeros()),
95 _format(AL_FORMAT_MONO8),
99 _buffer(SGSoundMgr::NO_BUFFER),
100 _valid_source(false),
101 _source(SGSoundMgr::NO_SOURCE),
108 _reference_dist(500.0),
113 _static_changed(true),
114 _out_of_range(false),
117 SGPath p = simgear::ResourceManager::instance()->findPath(file, currentDir);
122 SGSoundSample::SGSoundSample( const unsigned char** data,
123 int len, int freq, int format ) :
124 _absolute_pos(SGVec3d::zeros()),
125 _relative_pos(SGVec3d::zeros()),
126 _direction(SGVec3d::zeros()),
127 _velocity(SGVec3f::zeros()),
128 _orientation(SGQuatd::zeros()),
129 _orivec(SGVec3f::zeros()),
130 _base_pos(SGVec3d::zeros()),
131 _rotation(SGQuatd::zeros()),
132 _refname(random_string()),
136 _valid_buffer(false),
137 _buffer(SGSoundMgr::NO_BUFFER),
138 _valid_source(false),
139 _source(SGSoundMgr::NO_SOURCE),
146 _reference_dist(500.0),
151 _static_changed(true),
152 _out_of_range(false),
155 SG_LOG( SG_SOUND, SG_DEBUG, "In memory sounds sample" );
156 _data = (unsigned char*)*data; *data = NULL;
160 SGSoundSample::SGSoundSample( void** data, int len, int freq, int format ) :
161 _absolute_pos(SGVec3d::zeros()),
162 _relative_pos(SGVec3d::zeros()),
163 _direction(SGVec3d::zeros()),
164 _velocity(SGVec3f::zeros()),
165 _orientation(SGQuatd::zeros()),
166 _orivec(SGVec3f::zeros()),
167 _base_pos(SGVec3d::zeros()),
168 _rotation(SGQuatd::zeros()),
169 _refname(random_string()),
173 _valid_buffer(false),
174 _buffer(SGSoundMgr::NO_BUFFER),
175 _valid_source(false),
176 _source(SGSoundMgr::NO_SOURCE),
183 _reference_dist(500.0),
188 _static_changed(true),
189 _out_of_range(false),
192 SG_LOG( SG_SOUND, SG_DEBUG, "In memory sounds sample" );
193 _data = (unsigned char*)*data; *data = NULL;
198 SGSoundSample::~SGSoundSample() {
199 if ( _data != NULL ) free(_data);
202 void SGSoundSample::update_pos_and_orientation() {
204 _absolute_pos = _base_pos;
205 if (_relative_pos[0] || _relative_pos[1] || _relative_pos[2] ) {
206 _absolute_pos += _rotation.rotate( _relative_pos );
209 _orivec = SGVec3f::zeros();
210 if ( _direction[0] || _direction[1] || _direction[2] ) {
211 _orivec = toVec3f( _rotation.rotate( _direction ) );
215 string SGSoundSample::random_string() {
216 static const char *r = "0123456789abcdefghijklmnopqrstuvwxyz"
217 "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
218 string rstr = "System generated name: ";
219 for (int i=0; i<10; i++) {
220 rstr.push_back( r[rand() % strlen(r)] );
226 SGPath SGSoundSample::file_path() const
232 return SGPath(_refname);
235 void SGSoundSample::free_data()
237 if ( _data != NULL ) free( _data ); _data = NULL;