Dogcows Code - chaz/yoink/blob - src/Moof/Sound.cc

   1
   2 /*******************************************************************************
   3
   4  Copyright (c) 2009, Charles McGarvey
   5  All rights reserved.
   6
   7  Redistribution   and   use  in  source  and  binary  forms,  with  or  without
   8  modification, are permitted provided that the following conditions are met:
   9
  10    * Redistributions  of  source  code  must retain the above copyright notice,
  11      this list of conditions and the following disclaimer.
  12    * Redistributions  in binary form must reproduce the above copyright notice,
  13      this  list of conditions and the following disclaimer in the documentation
  14      and/or other materials provided with the distribution.
  15
  16  THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  20  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 *******************************************************************************/
  28
  29 #include <iostream>
  30 #include <string>
  31
  32 #include <SDL/SDL.h>
  33 #include <SDL/SDL_sound.h>
  34 #include <AL/al.h>
  35
  36 #include "Mippleton.hh"
  37 #include "Sound.hh"
  38
  39
  40 namespace Mf {
  41
  42
  43 struct Sound::Impl
  44 {
  45
  46         static ALenum getAudioFormat(const Sound_AudioInfo& audioInfo)
  47         {
  48                 if (audioInfo.format == AUDIO_U8 || audioInfo.format == AUDIO_S8)
  49                 {
  50                         if (audioInfo.channels == 1) return AL_FORMAT_MONO8;
  51                         else                         return AL_FORMAT_STEREO8;
  52                 }
  53                 else
  54                 {
  55                         if (audioInfo.channels == 1) return AL_FORMAT_MONO16;
  56                         else                         return AL_FORMAT_STEREO16;
  57                 }
  58         }
  59
  60         struct Buffer : public Mippleton<Buffer>
  61         {
  62                 Buffer(const std::string& name) :
  63                         Mippleton<Buffer>(name),
  64                         object(0)
  65                 {}
  66
  67                 ~Buffer()
  68                 {
  69                         alDeleteBuffers(1, &object);
  70                 }
  71                 void loadFromFile(const std::string& filePath, bool stream)
  72                 {
  73                         if (object != 0) return;
  74
  75                         Sound_Sample* sound = Sound_NewSampleFromFile(filePath.c_str(),
  76                                         NULL, 8096);
  77
  78                         if (!sound)
  79                         {
  80                                 std::cerr << "could not load sound from file" << std::endl;
  81                                 exit(1);
  82                         }
  83
  84                         unsigned decoded = Sound_DecodeAll(sound);
  85                         if (decoded == 0)
  86                         {
  87                                 std::cout << "decoded no bytes" << std::endl;
  88                                 exit(1);
  89                         }
  90                         std::cerr << "buffer size: " << sound->buffer_size << std::endl;
  91                         std::cerr << "channels: " << (int)sound->actual.channels << std::endl;
  92                         std::cerr << "format: " << sound->actual.format << std::endl;
  93                         std::cerr << "frequency: " << sound->actual.rate << std::endl;
  94
  95                         alGenBuffers(1, &object);
  96                         alBufferData(object, getAudioFormat(sound->actual), sound->buffer,
  97                                         sound->buffer_size, sound->actual.rate);
  98
  99                         Sound_FreeSample(sound);
 100                 }
 101
 102                 ALuint object;
 103
 104         //ALfloat location[] = {0.0f, 0.0f, 0.0f};
 105         //ALfloat location2[] = {0.0f, 0.0f, 0.0f};
 106         //ALfloat orient[] = {0.0f, 0.0f, -1.0f, 0.0, 1.0, 0.0};
 107
 108
 109         //alListenerfv(AL_POSITION, location);
 110         //alListenerfv(AL_VELOCITY, location);
 111         //alListenerfv(AL_VELOCITY, orient);
 112         };
 113
 114         Impl(const std::string& name, bool stream = false) :
 115                 buffer_(Buffer::retain(name), Buffer::release)
 116         {
 117                 if (!stream) buffer_->loadFromFile(Sound::getPath(name), stream);
 118                 else         buffer_->loadFromFile(SoundStream::getPath(name), stream);
 119
 120                 ALfloat location[] = {0.0f, 0.0f, 0.0f};
 121
 122                 alGenSources(1, &source_);
 123                 alSourcei(source_,  AL_BUFFER, buffer_->object);
 124                 alSourcef(source_,  AL_PITCH, 1.0f);
 125                 alSourcef(source_,  AL_GAIN, 1.0f);
 126                 alSourcefv(source_, AL_POSITION, location);
 127                 alSourcefv(source_, AL_VELOCITY, location);
 128                 alSourcei(source_,  AL_LOOPING, AL_FALSE);
 129         }
 130
 131         ~Impl()
 132         {
 133                 alDeleteSources(1, &source_);
 134         }
 135
 136
 137         void update()
 138         {
 139         }
 140
 141
 142         boost::shared_ptr<Buffer>       buffer_;
 143         ALuint                                          source_;
 144 };
 145
 146
 147 Sound::Sound(const std::string& name) :
 148         // pass through
 149         impl_(new Sound::Impl(name)) {}
 150
 151
 152 void Sound::play()
 153 {
 154         alSourceRewind(impl_->source_);
 155         alSourcePlay(impl_->source_);
 156 }
 157
 158
 159 std::string Sound::getPath(const std::string& name)
 160 {
 161         std::string path = Resource::getPath("sounds/" + name + ".ogg");
 162         return path;
 163 }
 164
 165
 166 //##############################################################################
 167
 168
 169 SoundStream::SoundStream(const std::string& name)
 170         // pass through
 171         //impl_(name, true) {}
 172 {
 173         impl_ = boost::shared_ptr<Sound::Impl>(new Sound::Impl(name, true));
 174 }
 175
 176
 177 void SoundStream::update(Scalar t, Scalar dt)
 178 {
 179         // pass through
 180         impl_->update();
 181 }
 182
 183
 184 std::string SoundStream::getPath(const std::string& name)
 185 {
 186         std::string path = Resource::getPath("sounds/" + name + ".xm");
 187         return path;
 188 }
 189
 190
 191 } // namespace Mf
 192
 193 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 194