bool Audio::AddAudioFile(const char* i_AudioPath, bool bLoop, float i_InitialVolume)
{
WAVEFORMATEXTENSIBLE wfx = { 0 };
XAUDIO2_BUFFER buffer = { 0 };
// Open the file
HANDLE hFile = CreateFile(
i_AudioPath,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
0,
NULL);
SetFilePointer(hFile, 0, NULL, FILE_BEGIN);
DWORD dwChunkSize;
DWORD dwChunkPosition;
//check the file type, should be fourccWAVE or 'XWMA'
FindChunk(hFile, fourccRIFF, dwChunkSize, dwChunkPosition);
DWORD filetype;
ReadChunkData(hFile, &filetype, sizeof(DWORD), dwChunkPosition);
if (filetype != fourccWAVE)
return false;
FindChunk(hFile, fourccFMT, dwChunkSize, dwChunkPosition);
ReadChunkData(hFile, &wfx, dwChunkSize, dwChunkPosition);
//fill out the audio data buffer with the contents of the fourccDATA chunk
FindChunk(hFile, fourccDATA, dwChunkSize, dwChunkPosition);
BYTE * pDataBuffer = new BYTE[dwChunkSize];
ReadChunkData(hFile, pDataBuffer, dwChunkSize, dwChunkPosition);
buffer.AudioBytes = dwChunkSize; //buffer containing audio data
buffer.pAudioData = pDataBuffer; //size of the audio buffer in bytes
buffer.Flags = XAUDIO2_END_OF_STREAM; // tell the source voice not to expect any data after this buffer
if (bLoop)
{
buffer.LoopLength = 0;
buffer.LoopCount = XAUDIO2_LOOP_INFINITE;
}
HRESULT hr;
IXAudio2SourceVoice* pSourceVoice;
if (FAILED(hr = s_pXAudio2->CreateSourceVoice(&pSourceVoice, (WAVEFORMATEX*)&wfx)))
return false;
if (FAILED(hr = pSourceVoice->SubmitSourceBuffer(&buffer)))
return false;
pSourceVoice->SetVolume(i_InitialVolume);
s_SourceVoices.push_back(pSourceVoice);
s_AudioBuffers.push_back(buffer);
}
void Sound::playSoundEffect(SoundEffect effect, X3DAUDIO_EMITTER* emit)
{
IXAudio2SourceVoice* voice = getSFXVoice();
voice->FlushSourceBuffers();
switch (effect) {
case SFX_LASER:
{
voice->SubmitSourceBuffer(laserBufferDetails, laserWMABuffer);
break;
}
case SFX_CRASH:
{
voice->SubmitSourceBuffer(crashBufferDetails, crashWMABuffer);
break;
}
case SFX_BOOST:
{
voice->SubmitSourceBuffer(boostBufferDetails, boostWMABuffer);
break;
}
case SFX_DROPMINE:
{
voice->SubmitSourceBuffer(dropmineBufferDetails, dropmineWMABuffer);
break;
}
case SFX_SCREAM:
{
// Now pick one of the three screams randomly
int choice = std::rand() % 3;
voice->SetVolume(2.0f);
switch (choice) {
case 0: voice->SubmitSourceBuffer(scream1BufferDetails, scream1WMABuffer);
break;
case 1: voice->SubmitSourceBuffer(scream2BufferDetails, scream2WMABuffer);
break;
case 2: voice->SubmitSourceBuffer(scream3BufferDetails, scream3WMABuffer);
break;
default:
voice->SubmitSourceBuffer(scream1BufferDetails, scream1WMABuffer);
}
break;
}
case SFX_CAREXPLODE:
{
voice->SetVolume(2.0f);
voice->SubmitSourceBuffer(carexplodeBufferDetails, carexplodeWMABuffer);
break;
}
case SFX_EXPLOSION:
{
voice->SubmitSourceBuffer(explosionBufferDetails, explosionWMABuffer);
break;
}
case SFX_BEEP:
{
voice->SubmitSourceBuffer(beepBufferDetails, beepWMABuffer);
break;
}
case SFX_ROCKETLAUNCH:
{
voice->SubmitSourceBuffer(rocketlaunchBufferDetails, rocketlaunchWMABuffer);
break;
}
case SFX_PICKUP:
{
voice->SetVolume(2.0f);
voice->SubmitSourceBuffer(pickupBufferDetails, pickupWMABuffer);
break;
}
case SFX_SELECT:
{
voice->SubmitSourceBuffer(selectBufferDetails, selectWMABuffer);
break;
}
case SFX_SHOTGUN:
{
voice->SetVolume(2.5f);
voice->SubmitSourceBuffer(shotgunBufferDetails, shotgunWMABuffer);
break;
}
case SFX_TAKENLEAD:
{
voice->SubmitSourceBuffer(takenleadBufferDetails, takenleadWMABuffer);
break;
}
case SFX_LOSTLEAD:
{
voice->SubmitSourceBuffer(lostleadBufferDetails, lostleadWMABuffer);
break;
}
case SFX_NOAMMO:
{
voice->SubmitSourceBuffer(noammoBufferDetails, noammoWMABuffer);
break;
}
case SFX_ONE:
{
voice->SubmitSourceBuffer(oneBufferDetails, oneWMABuffer);
break;
}
case SFX_TWO:
{
voice->SubmitSourceBuffer(twoBufferDetails, twoWMABuffer);
break;
}
case SFX_THREE:
{
voice->SubmitSourceBuffer(threeBufferDetails, threeWMABuffer);
break;
}
default:
break;
}
X3DAudioCalculate(audio3DHandle, &listener, emit,
X3DAUDIO_CALCULATE_MATRIX | X3DAUDIO_CALCULATE_DOPPLER | X3DAUDIO_CALCULATE_LPF_DIRECT,
&dspSettings);
voice->SetOutputMatrix(smSFX, 1, details.OutputFormat.Format.nChannels, dspSettings.pMatrixCoefficients);
voice->SetFrequencyRatio(dspSettings.DopplerFactor);
XAUDIO2_FILTER_PARAMETERS filterParameters = { LowPassFilter, 2.0f * sinf(X3DAUDIO_PI/6.0f * dspSettings.LPFDirectCoefficient), 1.0f };
voice->SetFilterParameters(&filterParameters);
voice->Start();
}
void WaveBank::Impl::Play( int index, float volume, float pitch, float pan )
{
assert( volume >= -XAUDIO2_MAX_VOLUME_LEVEL && volume <= XAUDIO2_MAX_VOLUME_LEVEL );
assert( pitch >= -1.f && pitch <= 1.f );
assert( pan >= -1.f && pan <= 1.f );
if ( mStreaming )
{
DebugTrace( "ERROR: One-shots can only be created from an in-memory wave bank\n");
throw std::exception( "WaveBank::Play" );
}
if ( index < 0 || uint32_t(index) >= mReader.Count() )
{
DebugTrace( "WARNING: Index %d not found in wave bank with only %u entries, one-shot not triggered\n", index, mReader.Count() );
return;
}
if ( !mPrepared )
{
mReader.WaitOnPrepare();
mPrepared = true;
}
char wfxbuff[64];
auto wfx = reinterpret_cast<WAVEFORMATEX*>( wfxbuff );
HRESULT hr = mReader.GetFormat( index, wfx, 64 );
ThrowIfFailed( hr );
IXAudio2SourceVoice* voice = nullptr;
mEngine->AllocateVoice( wfx, SoundEffectInstance_Default, true, &voice );
if ( !voice )
return;
if ( volume != 1.f )
{
hr = voice->SetVolume( volume );
ThrowIfFailed( hr );
}
if ( pitch != 0.f )
{
float fr = XAudio2SemitonesToFrequencyRatio( pitch * 12.f );
hr = voice->SetFrequencyRatio( fr );
ThrowIfFailed( hr );
}
if ( pan != 0.f )
{
float matrix[16];
if ( ComputePan( pan, wfx->nChannels, matrix ) )
{
hr = voice->SetOutputMatrix( nullptr, wfx->nChannels, mEngine->GetOutputChannels(), matrix );
ThrowIfFailed( hr );
}
}
hr = voice->Start( 0 );
ThrowIfFailed( hr );
XAUDIO2_BUFFER buffer;
memset( &buffer, 0, sizeof(buffer) );
hr = mReader.GetWaveData( index, &buffer.pAudioData, buffer.AudioBytes );
ThrowIfFailed( hr );
WaveBankReader::Metadata metadata;
hr = mReader.GetMetadata( index, metadata );
ThrowIfFailed( hr );
buffer.Flags = XAUDIO2_END_OF_STREAM;
buffer.pContext = this;
#if defined(_XBOX_ONE) || (_WIN32_WINNT < _WIN32_WINNT_WIN8) || (_WIN32_WINNT >= _WIN32_WINNT_WIN10)
XAUDIO2_BUFFER_WMA wmaBuffer;
memset( &wmaBuffer, 0, sizeof(wmaBuffer) );
uint32_t tag;
hr = mReader.GetSeekTable( index, &wmaBuffer.pDecodedPacketCumulativeBytes, wmaBuffer.PacketCount, tag );
ThrowIfFailed( hr );
if ( tag == WAVE_FORMAT_WMAUDIO2 || tag == WAVE_FORMAT_WMAUDIO3 )
{
hr = voice->SubmitSourceBuffer( &buffer, &wmaBuffer );
}
else
#endif
{
hr = voice->SubmitSourceBuffer( &buffer, nullptr );
}
if ( FAILED(hr) )
{
DebugTrace( "ERROR: WaveBank failed (%08X) when submitting buffer:\n", hr );
DebugTrace( "\tFormat Tag %u, %u channels, %u-bit, %u Hz, %u bytes\n", wfx->wFormatTag,
wfx->nChannels, wfx->wBitsPerSample, wfx->nSamplesPerSec, metadata.lengthBytes );
throw std::exception( "SubmitSourceBuffer" );
}
InterlockedIncrement( &mOneShots );
}