src/audio/openal_sound_source.cpp

   1 //  SuperTux
   2 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   3 //
   4 //  This program is free software: you can redistribute it and/or modify
   5 //  it under the terms of the GNU General Public License as published by
   6 //  the Free Software Foundation, either version 3 of the License, or
   7 //  (at your option) any later version.
   8 //
   9 //  This program is distributed in the hope that it will be useful,
  10 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 //  GNU General Public License for more details.
  13 //
  14 //  You should have received a copy of the GNU General Public License
  15 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "audio/openal_sound_source.hpp"
  18
  19 #include "audio/sound_manager.hpp"
  20
  21 OpenALSoundSource::OpenALSoundSource() :
  22   source()
  23 {
  24   alGenSources(1, &source);
  25   SoundManager::check_al_error("Couldn't create audio source: ");
  26   set_reference_distance(128);
  27 }
  28
  29 OpenALSoundSource::~OpenALSoundSource()
  30 {
  31   stop();
  32   alDeleteSources(1, &source);
  33 }
  34
  35 void
  36 OpenALSoundSource::stop()
  37 {
  38   alSourceStop(source);
  39   alSourcei(source, AL_BUFFER, AL_NONE);
  40   SoundManager::check_al_error("Problem stopping audio source: ");
  41 }
  42
  43 void
  44 OpenALSoundSource::play()
  45 {
  46   alSourcePlay(source);
  47   SoundManager::check_al_error("Couldn't start audio source: ");
  48 }
  49
  50 bool
  51 OpenALSoundSource::playing()
  52 {
  53   ALint state = AL_PLAYING;
  54   alGetSourcei(source, AL_SOURCE_STATE, &state);
  55   return state != AL_STOPPED;
  56 }
  57
  58 void
  59 OpenALSoundSource::pause()
  60 {
  61   alSourcePause(source);
  62   SoundManager::check_al_error("Couldn't pause audio source: ");
  63 }
  64
  65 void
  66 OpenALSoundSource::resume()
  67 {
  68   if( !this->paused() )
  69   {
  70     return;
  71   }
  72
  73   this->play();
  74 }
  75
  76 bool
  77 OpenALSoundSource::paused()
  78 {
  79     ALint state = AL_PAUSED;
  80     alGetSourcei(source, AL_SOURCE_STATE, &state);
  81     return state == AL_PAUSED;
  82 }
  83
  84 void
  85 OpenALSoundSource::update()
  86 {
  87 }
  88
  89 void
  90 OpenALSoundSource::set_looping(bool looping)
  91 {
  92   alSourcei(source, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
  93 }
  94
  95 void
  96 OpenALSoundSource::set_relative(bool relative)
  97 {
  98   alSourcei(source, AL_SOURCE_RELATIVE, relative ? AL_TRUE : AL_FALSE);
  99 }
 100
 101 void
 102 OpenALSoundSource::set_position(const Vector& position)
 103 {
 104   alSource3f(source, AL_POSITION, position.x, position.y, 0);
 105 }
 106
 107 void
 108 OpenALSoundSource::set_velocity(const Vector& velocity)
 109 {
 110   alSource3f(source, AL_VELOCITY, velocity.x, velocity.y, 0);
 111 }
 112
 113 void
 114 OpenALSoundSource::set_gain(float gain)
 115 {
 116   alSourcef(source, AL_GAIN, gain);
 117 }
 118
 119 void
 120 OpenALSoundSource::set_pitch(float pitch)
 121 {
 122   alSourcef(source, AL_PITCH, pitch);
 123 }
 124
 125 void
 126 OpenALSoundSource::set_reference_distance(float distance)
 127 {
 128   alSourcef(source, AL_REFERENCE_DISTANCE, distance);
 129 }
 130
 131 /* EOF */