src/audio/openal_sound_source.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 #include <config.h>
  20
  21 #include "openal_sound_source.hpp"
  22 #include "sound_manager.hpp"
  23 #include "math/vector.hpp"
  24
  25 OpenALSoundSource::OpenALSoundSource()
  26 {
  27   alGenSources(1, &source);
  28   SoundManager::check_al_error("Couldn't create audio source: ");
  29   set_reference_distance(128);
  30 }
  31
  32 OpenALSoundSource::~OpenALSoundSource()
  33 {
  34   stop();
  35   alDeleteSources(1, &source);
  36 }
  37
  38 void
  39 OpenALSoundSource::stop()
  40 {
  41   alSourceStop(source);
  42   alSourcei(source, AL_BUFFER, AL_NONE);
  43   SoundManager::check_al_error("Problem stopping audio source: ");
  44 }
  45
  46 void
  47 OpenALSoundSource::play()
  48 {
  49   alSourcePlay(source);
  50   SoundManager::check_al_error("Couldn't start audio source: ");
  51 }
  52
  53 bool
  54 OpenALSoundSource::playing()
  55 {
  56   ALint state = AL_PLAYING;
  57   alGetSourcei(source, AL_SOURCE_STATE, &state);
  58   return state != AL_STOPPED;
  59 }
  60
  61 void
  62 OpenALSoundSource::update()
  63 {
  64 }
  65
  66 void
  67 OpenALSoundSource::set_looping(bool looping)
  68 {
  69   alSourcei(source, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
  70 }
  71
  72 void
  73 OpenALSoundSource::set_position(const Vector& position)
  74 {
  75   alSource3f(source, AL_POSITION, position.x, position.y, 0);
  76 }
  77
  78 void
  79 OpenALSoundSource::set_velocity(const Vector& velocity)
  80 {
  81   alSource3f(source, AL_VELOCITY, velocity.x, velocity.y, 0);
  82 }
  83
  84 void
  85 OpenALSoundSource::set_gain(float gain)
  86 {
  87   alSourcef(source, AL_GAIN, gain);
  88 }
  89
  90 void
  91 OpenALSoundSource::set_pitch(float pitch)
  92 {
  93   alSourcef(source, AL_PITCH, pitch);
  94 }
  95
  96 void
  97 OpenALSoundSource::set_reference_distance(float distance)
  98 {
  99   alSourcef(source, AL_REFERENCE_DISTANCE, distance);
 100 }
 101
 102 void
 103 OpenALSoundSource::set_rollof_factor(float factor)
 104 {
 105   alSourcef(source, AL_ROLLOFF_FACTOR, factor);
 106 }