src/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
  24 OpenALSoundSource::OpenALSoundSource()
  25 {
  26   alGenSources(1, &source);
  27   SoundManager::check_al_error("Couldn't create audio source: ");
  28   set_reference_distance(128);
  29 }
  30
  31 OpenALSoundSource::~OpenALSoundSource()
  32 {
  33   stop();
  34   alDeleteSources(1, &source);
  35 }
  36
  37 void
  38 OpenALSoundSource::stop()
  39 {
  40   alSourceStop(source);
  41   alSourcei(source, AL_BUFFER, AL_NONE);
  42   SoundManager::check_al_error("Problem stopping audio source: ");
  43 }
  44
  45 void
  46 OpenALSoundSource::play()
  47 {
  48   alSourcePlay(source);
  49   SoundManager::check_al_error("Couldn't start audio source: ");
  50 }
  51
  52 bool
  53 OpenALSoundSource::playing()
  54 {
  55   ALint state = AL_PLAYING;
  56   alGetSourcei(source, AL_SOURCE_STATE, &state);
  57   return state != AL_STOPPED;
  58 }
  59
  60 void
  61 OpenALSoundSource::update()
  62 {
  63 }
  64
  65 void
  66 OpenALSoundSource::set_looping(bool looping)
  67 {
  68   alSourcei(source, AL_LOOPING, looping ? AL_TRUE : AL_FALSE);
  69 }
  70
  71 void
  72 OpenALSoundSource::set_position(const Vector& position)
  73 {
  74   alSource3f(source, AL_POSITION, position.x, position.y, 0);
  75 }
  76
  77 void
  78 OpenALSoundSource::set_velocity(const Vector& velocity)
  79 {
  80   alSource3f(source, AL_VELOCITY, velocity.x, velocity.y, 0);
  81 }
  82
  83 void
  84 OpenALSoundSource::set_gain(float gain)
  85 {
  86   alSourcef(source, AL_GAIN, gain);
  87 }
  88
  89 void
  90 OpenALSoundSource::set_pitch(float pitch)
  91 {
  92   alSourcef(source, AL_PITCH, pitch);
  93 }
  94
  95 void
  96 OpenALSoundSource::set_reference_distance(float distance)
  97 {
  98   alSourcef(source, AL_REFERENCE_DISTANCE, distance);
  99 }
 100
 101 void
 102 OpenALSoundSource::set_rollof_factor(float factor)
 103 {
 104   alSourcef(source, AL_ROLLOFF_FACTOR, factor);
 105 }