diff options
Diffstat (limited to 'alc/backends/sndio.cpp')
| -rw-r--r-- | alc/backends/sndio.cpp | 139 |
1 files changed, 78 insertions, 61 deletions
diff --git a/alc/backends/sndio.cpp b/alc/backends/sndio.cpp index f51f508f..90233a89 100644 --- a/alc/backends/sndio.cpp +++ b/alc/backends/sndio.cpp @@ -58,7 +58,7 @@ struct SndioPlayback final : public BackendBase { sio_hdl *mSndHandle{nullptr}; - al::vector<ALubyte> mBuffer; + al::vector<al::byte> mBuffer; std::atomic<bool> mKillNow{true}; std::thread mThread; @@ -75,19 +75,27 @@ SndioPlayback::~SndioPlayback() int SndioPlayback::mixerProc() { + sio_par par; + sio_initpar(&par); + if(!sio_getpar(mSndHandle, &par)) + { + aluHandleDisconnect(mDevice, "Failed to get device parameters"); + return 1; + } + + const size_t frameStep{par.pchan}; + const size_t frameSize{frameStep * par.bps}; + SetRTPriority(); althrd_setname(MIXER_THREAD_NAME); - const size_t frameStep{mDevice->channelsFromFmt()}; - const ALuint frameSize{mDevice->frameSizeFromFmt()}; - - while(!mKillNow.load(std::memory_order_acquire) && - mDevice->Connected.load(std::memory_order_acquire)) + while(!mKillNow.load(std::memory_order_acquire) + && mDevice->Connected.load(std::memory_order_acquire)) { - ALubyte *WritePtr{mBuffer.data()}; + al::byte *WritePtr{mBuffer.data()}; size_t len{mBuffer.size()}; - aluMixData(mDevice, WritePtr, static_cast<ALuint>(len/frameSize), frameStep); + aluMixData(mDevice, WritePtr, static_cast<ALuint>(len)/frameSize, frameStep); while(len > 0 && !mKillNow.load(std::memory_order_acquire)) { size_t wrote{sio_write(mSndHandle, WritePtr, len)}; @@ -129,47 +137,45 @@ bool SndioPlayback::reset() par.rate = mDevice->Frequency; switch(mDevice->FmtChans) { - case DevFmtMono : par.pchan = 1; break; - case DevFmtQuad : par.pchan = 4; break; - case DevFmtX51Rear: // fall-through - "Similar to 5.1, except using rear channels instead of sides" - case DevFmtX51 : par.pchan = 6; break; - case DevFmtX61 : par.pchan = 7; break; - case DevFmtX71 : par.pchan = 8; break; - - case DevFmtStereo : // fall-through - default: // fall back to stereo for all unknown formats and Ambi3D - mDevice->FmtChans = DevFmtStereo; - par.pchan = 2; - break; + case DevFmtMono : par.pchan = 1; break; + case DevFmtQuad : par.pchan = 4; break; + case DevFmtX51Rear: // fall-through - "Similar to 5.1, except using rear channels instead of sides" + case DevFmtX51 : par.pchan = 6; break; + case DevFmtX61 : par.pchan = 7; break; + case DevFmtX71 : par.pchan = 8; break; + + // fall back to stereo for Ambi3D + case DevFmtAmbi3D : // fall-through + case DevFmtStereo : par.pchan = 2; break; } switch(mDevice->FmtType) { - case DevFmtByte: - par.bits = 8; - par.sig = 1; - break; - case DevFmtUByte: - par.bits = 8; - par.sig = 0; - break; - case DevFmtFloat: - case DevFmtShort: - par.bits = 16; - par.sig = 1; - break; - case DevFmtUShort: - par.bits = 16; - par.sig = 0; - break; - case DevFmtInt: - par.bits = 32; - par.sig = 1; - break; - case DevFmtUInt: - par.bits = 32; - par.sig = 0; - break; + case DevFmtByte: + par.bits = 8; + par.sig = 1; + break; + case DevFmtUByte: + par.bits = 8; + par.sig = 0; + break; + case DevFmtFloat: + case DevFmtShort: + par.bits = 16; + par.sig = 1; + break; + case DevFmtUShort: + par.bits = 16; + par.sig = 0; + break; + case DevFmtInt: + par.bits = 32; + par.sig = 1; + break; + case DevFmtUInt: + par.bits = 32; + par.sig = 0; + break; } par.le = SIO_LE_NATIVE; @@ -191,21 +197,25 @@ bool SndioPlayback::reset() mDevice->Frequency = par.rate; - switch(par.pchan) + if(par.pchan < 2) + { + if(mDevice->FmtChans != DevFmtMono) + { + WARN("Got %u channel for %s\n", par.pchan, DevFmtChannelsString(mDevice->FmtChans)); + mDevice->FmtChans = DevFmtMono; + } + } + else if((par.pchan == 2 && mDevice->FmtChans != DevFmtStereo) + || par.pchan == 3 + || (par.pchan == 4 && mDevice->FmtChans != DevFmtQuad) + || par.pchan == 5 + || (par.pchan == 6 && mDevice->FmtChans != DevFmtX51 && mDevice->FmtChans != DevFmtX51Rear) + || (par.pchan == 7 && mDevice->FmtChans != DevFmtX61) + || (par.pchan == 8 && mDevice->FmtChans != DevFmtX71) + || par.pchan > 8) { - case 1: mDevice->FmtChans = DevFmtMono; break; - case 2: mDevice->FmtChans = DevFmtStereo; break; - case 4: mDevice->FmtChans = DevFmtQuad; break; - case 6: - if(mDevice->FmtChans != DevFmtX51Rear) // if it's already DevFmtX51Rear no change is needed - mDevice->FmtChans = DevFmtX51; - break; - case 7: mDevice->FmtChans = DevFmtX61; break; - case 8: mDevice->FmtChans = DevFmtX71; break; - - default: - ERR("Unexpected number of channels: %d\n", par.pchan); - return ALC_FALSE; + WARN("Got %u channels for %s\n", par.pchan, DevFmtChannelsString(mDevice->FmtChans)); + mDevice->FmtChans = DevFmtStereo; } if(par.bits == 8 && par.sig == 1) @@ -231,8 +241,15 @@ bool SndioPlayback::reset() mDevice->UpdateSize = par.round; mDevice->BufferSize = par.bufsz + par.round; - mBuffer.resize(mDevice->UpdateSize * mDevice->frameSizeFromFmt()); - std::fill(mBuffer.begin(), mBuffer.end(), 0); + mBuffer.resize(mDevice->UpdateSize * par.pchan*par.bps); + if(par.sig == 1) + std::fill(mBuffer.begin(), mBuffer.end(), al::byte{}); + else if(par.bits == 8) + std::fill_n(mBuffer.data(), mBuffer.size(), al::byte(0x80)); + else if(par.bits == 16) + std::fill_n(reinterpret_cast<uint16_t*>(mBuffer.data()), mBuffer.size()/2, 0x8000); + else if(par.bits == 32) + std::fill_n(reinterpret_cast<uint32_t*>(mBuffer.data()), mBuffer.size()/4, 0x80000000u); return true; } |