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 #include "audio/sound_manager.hpp"
  19
  20 OpenALSoundSource::OpenALSoundSource() :
  21   source()
  22 {
  23   alGenSources(1, &source);
  24   SoundManager::check_al_error("Couldn't create audio source: ");
  25   set_reference_distance(128);
  26 }
  27
  28 OpenALSoundSource::~OpenALSoundSource()
  29 {
  30   stop();
  31   alDeleteSources(1, &source);
  32 }
  33
  34 void
  35 OpenALSoundSource::stop()
  36 {
  37   alSourceStop(source);
  38   alSourcei(source, AL_BUFFER, AL_NONE);
  39   SoundManager::check_al_error("Problem stopping audio source: ");
  40 }
  41
  42 void
  43 OpenALSoundSource::play()
  44 {
  45   alSourcePlay(source);
  46   SoundManager::check_al_error("Couldn't start audio source: ");
  47 }
  48
  49 bool
  50 OpenALSoundSource::playing()
  51 {
  52   ALint state = AL_PLAYING;
  53   alGetSourcei(source, AL_SOURCE_STATE, &state);
  54   return state != AL_STOPPED;
  55 }
  56
  57 void
  58 OpenALSoundSource::update()
  59 {
  60 }
  61
  62 void
  63 OpenALSoundSource::set_looping(bool looping)
  64 {
  65   alSourcei(source, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
  66 }
  67
  68 void
  69 OpenALSoundSource::set_position(const Vector& position)
  70 {
  71   alSource3f(source, AL_POSITION, position.x, position.y, 0);
  72 }
  73
  74 void
  75 OpenALSoundSource::set_velocity(const Vector& velocity)
  76 {
  77   alSource3f(source, AL_VELOCITY, velocity.x, velocity.y, 0);
  78 }
  79
  80 void
  81 OpenALSoundSource::set_gain(float gain)
  82 {
  83   alSourcef(source, AL_GAIN, gain);
  84 }
  85
  86 void
  87 OpenALSoundSource::set_pitch(float pitch)
  88 {
  89   alSourcef(source, AL_PITCH, pitch);
  90 }
  91
  92 void
  93 OpenALSoundSource::set_reference_distance(float distance)
  94 {
  95   alSourcef(source, AL_REFERENCE_DISTANCE, distance);
  96 }
  97
  98 void
  99 OpenALSoundSource::set_rollof_factor(float factor)
 100 {
 101   alSourcef(source, AL_ROLLOFF_FACTOR, factor);
 102 }
 103
 104 /* EOF */