Description

A sound file loaded in memory.

See also: Sound

Example

// Load a sound file.
auto sound_buffer = smk::SoundBuffer(asset::water_mp3);
 
// Create a sound source.
auto sound = smk::Sound(sound_buffer);
 
// Start playing.
sound.Play()

Examples: sound.cpp.

Definition at line 33 of file SoundBuffer.hpp.

Public Member Functions
	SoundBuffer (const std::string &filename)
	Load a sound resource into memory from a file. More...

	SoundBuffer (SoundBuffer &&) noexcept

	SoundBuffer (const SoundBuffer &)=delete

SoundBuffer &	operator= (SoundBuffer &&) noexcept

SoundBuffer &	operator= (const SoundBuffer &)=delete

unsigned int	buffer () const

Constructor & Destructor Documentation

◆ SoundBuffer() [1/2]

smk::SoundBuffer::SoundBuffer ( const std::string & filename )

Load a sound resource into memory from a file.

Definition at line 20 of file SoundBuffer.cpp.

                                                  : SoundBuffer() {
  if (!Audio::Initialized()) {
    static bool once = true;
    if (once) {
      std::cerr
          << "Error: smk::Audio has not been initialized. Please create a "
             "smk::Audio instance in the main() function before creating a "
             "smk::SoundBuffer"
          << std::endl;
      once = false;
    }
  }
 
  nqr::AudioData fileData;
  nqr::NyquistIO loader;
  loader.Load(&fileData, filename);
 
  auto sample_rate = static_cast<ALsizei>(fileData.sampleRate);
 
  std::vector<ALshort> data;
  for (auto& it : fileData.samples) {
    it = std::min(it, +1.f);
    it = std::max(it, -1.f);
    data.push_back(ALshort(it * float((1 << 15) - 1)));  // NOLINT
  }
 
  ALenum format = {};
  switch (fileData.channelCount) {
    case 1:
      format = AL_FORMAT_MONO16;
      break;
    case 2:
      format = AL_FORMAT_STEREO16;
      break;
    default:
      std::cerr << "SoundBuffer: Unsupported format file " + filename
                << std::endl;
      return;
  }
 
  alGenBuffers(1, &buffer_);
  alBufferData(buffer_, format, data.data(),
               ALsizei(data.size() * sizeof(ALshort)), sample_rate);
 
  if (alGetError() != AL_NO_ERROR) {
    std::cerr << "SoundBuffer: OpenAL error" << std::endl;
    return;
  }
}

◆ ~SoundBuffer()

smk::SoundBuffer::~SoundBuffer ( )

Definition at line 70 of file SoundBuffer.cpp.

                          {
  if (buffer_) {
    alDeleteBuffers(1, &buffer_);
  }
}

◆ SoundBuffer() [2/2]

smk::SoundBuffer::SoundBuffer ( SoundBuffer && o )

noexcept

Definition at line 76 of file SoundBuffer.cpp.

                                                 {
  this->operator=(std::move(o));
}

Member Function Documentation

◆ buffer()

unsigned int smk::SoundBuffer::buffer ( ) const

Definition at line 85 of file SoundBuffer.cpp.

                                       {
  return buffer_;
}

◆ operator=()

SoundBuffer & smk::SoundBuffer::operator= ( SoundBuffer && o )