| 49 | //----------------------------------------------------------------------------- |
| 50 | |
| 51 | std::shared_ptr<SoundBuffer> DXSoundBuffer::create(uint32_t dwBufferSize, uint32_t nSampleRate, int nChannels) |
| 52 | { |
| 53 | if (!g_lpDS) |
| 54 | return NULL; |
| 55 | |
| 56 | WAVEFORMATEX wavfmt; |
| 57 | DSBUFFERDESC dsbdesc; |
| 58 | |
| 59 | wavfmt.wFormatTag = WAVE_FORMAT_PCM; |
| 60 | wavfmt.nChannels = nChannels; |
| 61 | wavfmt.nSamplesPerSec = nSampleRate; |
| 62 | wavfmt.wBitsPerSample = 16; |
| 63 | wavfmt.nBlockAlign = wavfmt.nChannels == 1 ? 2 : 4; |
| 64 | wavfmt.nAvgBytesPerSec = wavfmt.nBlockAlign * wavfmt.nSamplesPerSec; |
| 65 | |
| 66 | memset(&dsbdesc, 0, sizeof(dsbdesc)); |
| 67 | dsbdesc.dwSize = sizeof(dsbdesc); |
| 68 | dsbdesc.dwBufferBytes = dwBufferSize; |
| 69 | dsbdesc.lpwfxFormat = &wavfmt; |
| 70 | dsbdesc.dwFlags = DSBCAPS_CTRLVOLUME | DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_STICKYFOCUS; |
| 71 | |
| 72 | LPDIRECTSOUNDBUFFER pBuffer; |
| 73 | |
| 74 | // Are buffers released when g_lpDS OR m_pBuffer is released? |
| 75 | // . From DirectX doc: |
| 76 | // "Buffer objects are owned by the device object that created them. When the |
| 77 | // device object is released, all buffers created by that object are also released..." |
| 78 | HRESULT hr = g_lpDS->CreateSoundBuffer(&dsbdesc, &pBuffer, NULL); |
| 79 | if (FAILED(hr)) |
| 80 | { |
| 81 | LogFileOutput("DXSoundBuffer: CreateSoundBuffer(), hr=0x%08X\n", (uint32_t)hr); |
| 82 | return NULL; |
| 83 | } |
| 84 | |
| 85 | return std::make_shared<DXSoundBuffer>(pBuffer); |
| 86 | } |
| 87 | |
| 88 | DXSoundBuffer::DXSoundBuffer(LPDIRECTSOUNDBUFFER pBuffer) : m_pBuffer(pBuffer) |
| 89 | { |
nothing calls this directly
no test coverage detected