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authorPierre Bourdon <delroth@gmail.com>2016-06-24 10:43:46 +0200
committerPierre Bourdon <delroth@gmail.com>2016-06-24 10:43:46 +0200
commit3570c7f03a2aa90aa634f96c0af1969af610f14d (patch)
tree4252e03c0e853ba7cffe022937698c854ad0eaa9 /Source/Core/AudioCommon/OpenALStream.cpp
parent2115e8a4a6814e32107b5205ff5c95bbd3c6e99c (diff)
Reformat all the things. Have fun with merge conflicts.
Diffstat (limited to 'Source/Core/AudioCommon/OpenALStream.cpp')
-rw-r--r--Source/Core/AudioCommon/OpenALStream.cpp644
1 files changed, 328 insertions, 316 deletions
diff --git a/Source/Core/AudioCommon/OpenALStream.cpp b/Source/Core/AudioCommon/OpenALStream.cpp
index b99e7e5bf7..9f0ea2af57 100644
--- a/Source/Core/AudioCommon/OpenALStream.cpp
+++ b/Source/Core/AudioCommon/OpenALStream.cpp
@@ -5,11 +5,11 @@
#include <cstring>
#include <thread>
-#include "AudioCommon/aldlist.h"
#include "AudioCommon/DPL2Decoder.h"
#include "AudioCommon/OpenALStream.h"
-#include "Common/Thread.h"
+#include "AudioCommon/aldlist.h"
#include "Common/Logging/Log.h"
+#include "Common/Thread.h"
#include "Core/ConfigManager.h"
#if defined HAVE_OPENAL && HAVE_OPENAL
@@ -25,351 +25,363 @@ static soundtouch::SoundTouch soundTouch;
//
bool OpenALStream::Start()
{
- m_run_thread.store(true);
- bool bReturn = false;
-
- ALDeviceList pDeviceList;
- if (pDeviceList.GetNumDevices())
- {
- char *defDevName = pDeviceList.GetDeviceName(pDeviceList.GetDefaultDevice());
-
- WARN_LOG(AUDIO, "Found OpenAL device %s", defDevName);
-
- ALCdevice *pDevice = alcOpenDevice(defDevName);
- if (pDevice)
- {
- ALCcontext *pContext = alcCreateContext(pDevice, nullptr);
- if (pContext)
- {
- // Used to determine an appropriate period size (2x period = total buffer size)
- //ALCint refresh;
- //alcGetIntegerv(pDevice, ALC_REFRESH, 1, &refresh);
- //period_size_in_millisec = 1000 / refresh;
-
- alcMakeContextCurrent(pContext);
- thread = std::thread(&OpenALStream::SoundLoop, this);
- bReturn = true;
- }
- else
- {
- alcCloseDevice(pDevice);
- PanicAlertT("OpenAL: can't create context for device %s", defDevName);
- }
- }
- else
- {
- PanicAlertT("OpenAL: can't open device %s", defDevName);
- }
- }
- else
- {
- PanicAlertT("OpenAL: can't find sound devices");
- }
-
- // Initialize DPL2 parameters
- DPL2Reset();
-
- soundTouch.clear();
- return bReturn;
+ m_run_thread.store(true);
+ bool bReturn = false;
+
+ ALDeviceList pDeviceList;
+ if (pDeviceList.GetNumDevices())
+ {
+ char* defDevName = pDeviceList.GetDeviceName(pDeviceList.GetDefaultDevice());
+
+ WARN_LOG(AUDIO, "Found OpenAL device %s", defDevName);
+
+ ALCdevice* pDevice = alcOpenDevice(defDevName);
+ if (pDevice)
+ {
+ ALCcontext* pContext = alcCreateContext(pDevice, nullptr);
+ if (pContext)
+ {
+ // Used to determine an appropriate period size (2x period = total buffer size)
+ // ALCint refresh;
+ // alcGetIntegerv(pDevice, ALC_REFRESH, 1, &refresh);
+ // period_size_in_millisec = 1000 / refresh;
+
+ alcMakeContextCurrent(pContext);
+ thread = std::thread(&OpenALStream::SoundLoop, this);
+ bReturn = true;
+ }
+ else
+ {
+ alcCloseDevice(pDevice);
+ PanicAlertT("OpenAL: can't create context for device %s", defDevName);
+ }
+ }
+ else
+ {
+ PanicAlertT("OpenAL: can't open device %s", defDevName);
+ }
+ }
+ else
+ {
+ PanicAlertT("OpenAL: can't find sound devices");
+ }
+
+ // Initialize DPL2 parameters
+ DPL2Reset();
+
+ soundTouch.clear();
+ return bReturn;
}
void OpenALStream::Stop()
{
- m_run_thread.store(false);
- // kick the thread if it's waiting
- soundSyncEvent.Set();
+ m_run_thread.store(false);
+ // kick the thread if it's waiting
+ soundSyncEvent.Set();
- soundTouch.clear();
+ soundTouch.clear();
- thread.join();
+ thread.join();
- alSourceStop(uiSource);
- alSourcei(uiSource, AL_BUFFER, 0);
+ alSourceStop(uiSource);
+ alSourcei(uiSource, AL_BUFFER, 0);
- // Clean up buffers and sources
- alDeleteSources(1, &uiSource);
- uiSource = 0;
- alDeleteBuffers(numBuffers, uiBuffers);
+ // Clean up buffers and sources
+ alDeleteSources(1, &uiSource);
+ uiSource = 0;
+ alDeleteBuffers(numBuffers, uiBuffers);
- ALCcontext *pContext = alcGetCurrentContext();
- ALCdevice *pDevice = alcGetContextsDevice(pContext);
+ ALCcontext* pContext = alcGetCurrentContext();
+ ALCdevice* pDevice = alcGetContextsDevice(pContext);
- alcMakeContextCurrent(nullptr);
- alcDestroyContext(pContext);
- alcCloseDevice(pDevice);
+ alcMakeContextCurrent(nullptr);
+ alcDestroyContext(pContext);
+ alcCloseDevice(pDevice);
}
void OpenALStream::SetVolume(int volume)
{
- fVolume = (float)volume / 100.0f;
+ fVolume = (float)volume / 100.0f;
- if (uiSource)
- alSourcef(uiSource, AL_GAIN, fVolume);
+ if (uiSource)
+ alSourcef(uiSource, AL_GAIN, fVolume);
}
void OpenALStream::Update()
{
- soundSyncEvent.Set();
+ soundSyncEvent.Set();
}
void OpenALStream::Clear(bool mute)
{
- m_muted = mute;
-
- if (m_muted)
- {
- soundTouch.clear();
- alSourceStop(uiSource);
- }
- else
- {
- alSourcePlay(uiSource);
- }
+ m_muted = mute;
+
+ if (m_muted)
+ {
+ soundTouch.clear();
+ alSourceStop(uiSource);
+ }
+ else
+ {
+ alSourcePlay(uiSource);
+ }
}
void OpenALStream::SoundLoop()
{
- Common::SetCurrentThreadName("Audio thread - openal");
+ Common::SetCurrentThreadName("Audio thread - openal");
- bool surround_capable = SConfig::GetInstance().bDPL2Decoder;
+ bool surround_capable = SConfig::GetInstance().bDPL2Decoder;
#if defined(__APPLE__)
- bool float32_capable = false;
- const ALenum AL_FORMAT_STEREO_FLOAT32 = 0;
- // OS X does not have the alext AL_FORMAT_51CHN32 yet.
- surround_capable = false;
- const ALenum AL_FORMAT_51CHN32 = 0;
- const ALenum AL_FORMAT_51CHN16 = 0;
+ bool float32_capable = false;
+ const ALenum AL_FORMAT_STEREO_FLOAT32 = 0;
+ // OS X does not have the alext AL_FORMAT_51CHN32 yet.
+ surround_capable = false;
+ const ALenum AL_FORMAT_51CHN32 = 0;
+ const ALenum AL_FORMAT_51CHN16 = 0;
#else
- bool float32_capable = true;
+ bool float32_capable = true;
#endif
- u32 ulFrequency = m_mixer->GetSampleRate();
- numBuffers = SConfig::GetInstance().iLatency + 2; // OpenAL requires a minimum of two buffers
-
- memset(uiBuffers, 0, numBuffers * sizeof(ALuint));
- uiSource = 0;
-
- // Checks if a X-Fi is being used. If it is, disable FLOAT32 support as this sound card has no support for it even though it reports it does.
- if (strstr(alGetString(AL_RENDERER), "X-Fi"))
- float32_capable = false;
-
- // Generate some AL Buffers for streaming
- alGenBuffers(numBuffers, (ALuint *)uiBuffers);
- // Generate a Source to playback the Buffers
- alGenSources(1, &uiSource);
-
- // Short Silence
- if (float32_capable)
- memset(sampleBuffer, 0, OAL_MAX_SAMPLES * numBuffers * FRAME_SURROUND_FLOAT);
- else
- memset(sampleBuffer, 0, OAL_MAX_SAMPLES * numBuffers * FRAME_SURROUND_SHORT);
-
- memset(realtimeBuffer, 0, OAL_MAX_SAMPLES * FRAME_STEREO_SHORT);
-
- for (int i = 0; i < numBuffers; i++)
- {
- if (surround_capable)
- {
- if (float32_capable)
- alBufferData(uiBuffers[i], AL_FORMAT_51CHN32, sampleBuffer, 4 * FRAME_SURROUND_FLOAT, ulFrequency);
- else
- alBufferData(uiBuffers[i], AL_FORMAT_51CHN16, sampleBuffer, 4 * FRAME_SURROUND_SHORT, ulFrequency);
- }
- else
- {
- alBufferData(uiBuffers[i], AL_FORMAT_STEREO16, realtimeBuffer, 4 * FRAME_STEREO_SHORT, ulFrequency);
- }
- }
- alSourceQueueBuffers(uiSource, numBuffers, uiBuffers);
- alSourcePlay(uiSource);
-
- // Set the default sound volume as saved in the config file.
- alSourcef(uiSource, AL_GAIN, fVolume);
-
- // TODO: Error handling
- //ALenum err = alGetError();
-
- ALint iBuffersFilled = 0;
- ALint iBuffersProcessed = 0;
- ALint iState = 0;
- ALuint uiBufferTemp[OAL_MAX_BUFFERS] = { 0 };
-
- soundTouch.setChannels(2);
- soundTouch.setSampleRate(ulFrequency);
- soundTouch.setTempo(1.0);
- soundTouch.setSetting(SETTING_USE_QUICKSEEK, 0);
- soundTouch.setSetting(SETTING_USE_AA_FILTER, 0);
- soundTouch.setSetting(SETTING_SEQUENCE_MS, 1);
- soundTouch.setSetting(SETTING_SEEKWINDOW_MS, 28);
- soundTouch.setSetting(SETTING_OVERLAP_MS, 12);
-
- while (m_run_thread.load())
- {
- // num_samples_to_render in this update - depends on SystemTimers::AUDIO_DMA_PERIOD.
- const u32 stereo_16_bit_size = 4;
- const u32 dma_length = 32;
- const u64 ais_samples_per_second = 48000 * stereo_16_bit_size;
- u64 audio_dma_period = SystemTimers::GetTicksPerSecond() / (AudioInterface::GetAIDSampleRate() * stereo_16_bit_size / dma_length);
- u64 num_samples_to_render = (audio_dma_period * ais_samples_per_second) / SystemTimers::GetTicksPerSecond();
-
- unsigned int numSamples = (unsigned int)num_samples_to_render;
- unsigned int minSamples = surround_capable ? 240 : 0; // DPL2 accepts 240 samples minimum (FWRDURATION)
-
- numSamples = (numSamples > OAL_MAX_SAMPLES) ? OAL_MAX_SAMPLES : numSamples;
- numSamples = m_mixer->Mix(realtimeBuffer, numSamples, false);
-
- // Convert the samples from short to float
- float dest[OAL_MAX_SAMPLES * STEREO_CHANNELS];
- for (u32 i = 0; i < numSamples * STEREO_CHANNELS; ++i)
- dest[i] = (float)realtimeBuffer[i] / (1 << 15);
-
- soundTouch.putSamples(dest, numSamples);
-
- if (iBuffersProcessed == iBuffersFilled)
- {
- alGetSourcei(uiSource, AL_BUFFERS_PROCESSED, &iBuffersProcessed);
- iBuffersFilled = 0;
- }
-
- if (iBuffersProcessed)
- {
- double rate = (double)m_mixer->GetCurrentSpeed();
- if (rate <= 0)
- {
- Core::RequestRefreshInfo();
- rate = (double)m_mixer->GetCurrentSpeed();
- }
-
- // Place a lower limit of 10% speed. When a game boots up, there will be
- // many silence samples. These do not need to be timestretched.
- if (rate > 0.10)
- {
- soundTouch.setTempo(rate);
- if (rate > 10)
- {
- soundTouch.clear();
- }
- }
-
- unsigned int nSamples = soundTouch.receiveSamples(sampleBuffer, OAL_MAX_SAMPLES * numBuffers);
-
- if (nSamples <= minSamples)
- continue;
-
- // Remove the Buffer from the Queue. (uiBuffer contains the Buffer ID for the unqueued Buffer)
- if (iBuffersFilled == 0)
- {
- alSourceUnqueueBuffers(uiSource, iBuffersProcessed, uiBufferTemp);
- ALenum err = alGetError();
- if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error unqueuing buffers: %08x", err);
- }
- }
-
- if (surround_capable)
- {
- float dpl2[OAL_MAX_SAMPLES * OAL_MAX_BUFFERS * SURROUND_CHANNELS];
- DPL2Decode(sampleBuffer, nSamples, dpl2);
-
- // zero-out the subwoofer channel - DPL2Decode generates a pretty
- // good 5.0 but not a good 5.1 output. Sadly there is not a 5.0
- // AL_FORMAT_50CHN32 to make this super-explicit.
- // DPL2Decode output: LEFTFRONT, RIGHTFRONT, CENTREFRONT, (sub), LEFTREAR, RIGHTREAR
- for (u32 i = 0; i < nSamples; ++i)
- {
- dpl2[i*SURROUND_CHANNELS + 3 /*sub/lfe*/] = 0.0f;
- }
-
- if (float32_capable)
- {
- alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_51CHN32, dpl2, nSamples * FRAME_SURROUND_FLOAT, ulFrequency);
- }
- else
- {
- short surround_short[OAL_MAX_SAMPLES * SURROUND_CHANNELS * OAL_MAX_BUFFERS];
- for (u32 i = 0; i < nSamples * SURROUND_CHANNELS; ++i)
- surround_short[i] = (short)((float)dpl2[i] * (1 << 15));
-
- alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_51CHN16, surround_short, nSamples * FRAME_SURROUND_SHORT, ulFrequency);
- }
-
- ALenum err = alGetError();
- if (err == AL_INVALID_ENUM)
- {
- // 5.1 is not supported by the host, fallback to stereo
- WARN_LOG(AUDIO, "Unable to set 5.1 surround mode. Updating OpenAL Soft might fix this issue.");
- surround_capable = false;
- }
- else if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error occurred while buffering data: %08x", err);
- }
- }
-
- else
- {
- if (float32_capable)
- {
- alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_STEREO_FLOAT32, sampleBuffer, nSamples * FRAME_STEREO_FLOAT, ulFrequency);
- ALenum err = alGetError();
- if (err == AL_INVALID_ENUM)
- {
- float32_capable = false;
- }
- else if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error occurred while buffering float32 data: %08x", err);
- }
- }
-
- else
- {
- // Convert the samples from float to short
- short stereo[OAL_MAX_SAMPLES * STEREO_CHANNELS * OAL_MAX_BUFFERS];
- for (u32 i = 0; i < nSamples * STEREO_CHANNELS; ++i)
- stereo[i] = (short)((float)sampleBuffer[i] * (1 << 15));
-
- alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_STEREO16, stereo, nSamples * FRAME_STEREO_SHORT, ulFrequency);
- }
- }
-
- alSourceQueueBuffers(uiSource, 1, &uiBufferTemp[iBuffersFilled]);
- ALenum err = alGetError();
- if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error queuing buffers: %08x", err);
- }
- iBuffersFilled++;
-
- if (iBuffersFilled == numBuffers)
- {
- alSourcePlay(uiSource);
- err = alGetError();
- if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error occurred during playback: %08x", err);
- }
- }
-
- alGetSourcei(uiSource, AL_SOURCE_STATE, &iState);
- if (iState != AL_PLAYING)
- {
- // Buffer underrun occurred, resume playback
- alSourcePlay(uiSource);
- err = alGetError();
- if (err != 0)
- {
- ERROR_LOG(AUDIO, "Error occurred resuming playback: %08x", err);
- }
- }
- }
- else
- {
- soundSyncEvent.Wait();
- }
- }
+ u32 ulFrequency = m_mixer->GetSampleRate();
+ numBuffers = SConfig::GetInstance().iLatency + 2; // OpenAL requires a minimum of two buffers
+
+ memset(uiBuffers, 0, numBuffers * sizeof(ALuint));
+ uiSource = 0;
+
+ // Checks if a X-Fi is being used. If it is, disable FLOAT32 support as this sound card has no
+ // support for it even though it reports it does.
+ if (strstr(alGetString(AL_RENDERER), "X-Fi"))
+ float32_capable = false;
+
+ // Generate some AL Buffers for streaming
+ alGenBuffers(numBuffers, (ALuint*)uiBuffers);
+ // Generate a Source to playback the Buffers
+ alGenSources(1, &uiSource);
+
+ // Short Silence
+ if (float32_capable)
+ memset(sampleBuffer, 0, OAL_MAX_SAMPLES * numBuffers * FRAME_SURROUND_FLOAT);
+ else
+ memset(sampleBuffer, 0, OAL_MAX_SAMPLES * numBuffers * FRAME_SURROUND_SHORT);
+
+ memset(realtimeBuffer, 0, OAL_MAX_SAMPLES * FRAME_STEREO_SHORT);
+
+ for (int i = 0; i < numBuffers; i++)
+ {
+ if (surround_capable)
+ {
+ if (float32_capable)
+ alBufferData(uiBuffers[i], AL_FORMAT_51CHN32, sampleBuffer, 4 * FRAME_SURROUND_FLOAT,
+ ulFrequency);
+ else
+ alBufferData(uiBuffers[i], AL_FORMAT_51CHN16, sampleBuffer, 4 * FRAME_SURROUND_SHORT,
+ ulFrequency);
+ }
+ else
+ {
+ alBufferData(uiBuffers[i], AL_FORMAT_STEREO16, realtimeBuffer, 4 * FRAME_STEREO_SHORT,
+ ulFrequency);
+ }
+ }
+ alSourceQueueBuffers(uiSource, numBuffers, uiBuffers);
+ alSourcePlay(uiSource);
+
+ // Set the default sound volume as saved in the config file.
+ alSourcef(uiSource, AL_GAIN, fVolume);
+
+ // TODO: Error handling
+ // ALenum err = alGetError();
+
+ ALint iBuffersFilled = 0;
+ ALint iBuffersProcessed = 0;
+ ALint iState = 0;
+ ALuint uiBufferTemp[OAL_MAX_BUFFERS] = {0};
+
+ soundTouch.setChannels(2);
+ soundTouch.setSampleRate(ulFrequency);
+ soundTouch.setTempo(1.0);
+ soundTouch.setSetting(SETTING_USE_QUICKSEEK, 0);
+ soundTouch.setSetting(SETTING_USE_AA_FILTER, 0);
+ soundTouch.setSetting(SETTING_SEQUENCE_MS, 1);
+ soundTouch.setSetting(SETTING_SEEKWINDOW_MS, 28);
+ soundTouch.setSetting(SETTING_OVERLAP_MS, 12);
+
+ while (m_run_thread.load())
+ {
+ // num_samples_to_render in this update - depends on SystemTimers::AUDIO_DMA_PERIOD.
+ const u32 stereo_16_bit_size = 4;
+ const u32 dma_length = 32;
+ const u64 ais_samples_per_second = 48000 * stereo_16_bit_size;
+ u64 audio_dma_period = SystemTimers::GetTicksPerSecond() /
+ (AudioInterface::GetAIDSampleRate() * stereo_16_bit_size / dma_length);
+ u64 num_samples_to_render =
+ (audio_dma_period * ais_samples_per_second) / SystemTimers::GetTicksPerSecond();
+
+ unsigned int numSamples = (unsigned int)num_samples_to_render;
+ unsigned int minSamples =
+ surround_capable ? 240 : 0; // DPL2 accepts 240 samples minimum (FWRDURATION)
+
+ numSamples = (numSamples > OAL_MAX_SAMPLES) ? OAL_MAX_SAMPLES : numSamples;
+ numSamples = m_mixer->Mix(realtimeBuffer, numSamples, false);
+
+ // Convert the samples from short to float
+ float dest[OAL_MAX_SAMPLES * STEREO_CHANNELS];
+ for (u32 i = 0; i < numSamples * STEREO_CHANNELS; ++i)
+ dest[i] = (float)realtimeBuffer[i] / (1 << 15);
+
+ soundTouch.putSamples(dest, numSamples);
+
+ if (iBuffersProcessed == iBuffersFilled)
+ {
+ alGetSourcei(uiSource, AL_BUFFERS_PROCESSED, &iBuffersProcessed);
+ iBuffersFilled = 0;
+ }
+
+ if (iBuffersProcessed)
+ {
+ double rate = (double)m_mixer->GetCurrentSpeed();
+ if (rate <= 0)
+ {
+ Core::RequestRefreshInfo();
+ rate = (double)m_mixer->GetCurrentSpeed();
+ }
+
+ // Place a lower limit of 10% speed. When a game boots up, there will be
+ // many silence samples. These do not need to be timestretched.
+ if (rate > 0.10)
+ {
+ soundTouch.setTempo(rate);
+ if (rate > 10)
+ {
+ soundTouch.clear();
+ }
+ }
+
+ unsigned int nSamples = soundTouch.receiveSamples(sampleBuffer, OAL_MAX_SAMPLES * numBuffers);
+
+ if (nSamples <= minSamples)
+ continue;
+
+ // Remove the Buffer from the Queue. (uiBuffer contains the Buffer ID for the unqueued
+ // Buffer)
+ if (iBuffersFilled == 0)
+ {
+ alSourceUnqueueBuffers(uiSource, iBuffersProcessed, uiBufferTemp);
+ ALenum err = alGetError();
+ if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error unqueuing buffers: %08x", err);
+ }
+ }
+
+ if (surround_capable)
+ {
+ float dpl2[OAL_MAX_SAMPLES * OAL_MAX_BUFFERS * SURROUND_CHANNELS];
+ DPL2Decode(sampleBuffer, nSamples, dpl2);
+
+ // zero-out the subwoofer channel - DPL2Decode generates a pretty
+ // good 5.0 but not a good 5.1 output. Sadly there is not a 5.0
+ // AL_FORMAT_50CHN32 to make this super-explicit.
+ // DPL2Decode output: LEFTFRONT, RIGHTFRONT, CENTREFRONT, (sub), LEFTREAR, RIGHTREAR
+ for (u32 i = 0; i < nSamples; ++i)
+ {
+ dpl2[i * SURROUND_CHANNELS + 3 /*sub/lfe*/] = 0.0f;
+ }
+
+ if (float32_capable)
+ {
+ alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_51CHN32, dpl2,
+ nSamples * FRAME_SURROUND_FLOAT, ulFrequency);
+ }
+ else
+ {
+ short surround_short[OAL_MAX_SAMPLES * SURROUND_CHANNELS * OAL_MAX_BUFFERS];
+ for (u32 i = 0; i < nSamples * SURROUND_CHANNELS; ++i)
+ surround_short[i] = (short)((float)dpl2[i] * (1 << 15));
+
+ alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_51CHN16, surround_short,
+ nSamples * FRAME_SURROUND_SHORT, ulFrequency);
+ }
+
+ ALenum err = alGetError();
+ if (err == AL_INVALID_ENUM)
+ {
+ // 5.1 is not supported by the host, fallback to stereo
+ WARN_LOG(AUDIO,
+ "Unable to set 5.1 surround mode. Updating OpenAL Soft might fix this issue.");
+ surround_capable = false;
+ }
+ else if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error occurred while buffering data: %08x", err);
+ }
+ }
+
+ else
+ {
+ if (float32_capable)
+ {
+ alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_STEREO_FLOAT32, sampleBuffer,
+ nSamples * FRAME_STEREO_FLOAT, ulFrequency);
+ ALenum err = alGetError();
+ if (err == AL_INVALID_ENUM)
+ {
+ float32_capable = false;
+ }
+ else if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error occurred while buffering float32 data: %08x", err);
+ }
+ }
+
+ else
+ {
+ // Convert the samples from float to short
+ short stereo[OAL_MAX_SAMPLES * STEREO_CHANNELS * OAL_MAX_BUFFERS];
+ for (u32 i = 0; i < nSamples * STEREO_CHANNELS; ++i)
+ stereo[i] = (short)((float)sampleBuffer[i] * (1 << 15));
+
+ alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_STEREO16, stereo,
+ nSamples * FRAME_STEREO_SHORT, ulFrequency);
+ }
+ }
+
+ alSourceQueueBuffers(uiSource, 1, &uiBufferTemp[iBuffersFilled]);
+ ALenum err = alGetError();
+ if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error queuing buffers: %08x", err);
+ }
+ iBuffersFilled++;
+
+ if (iBuffersFilled == numBuffers)
+ {
+ alSourcePlay(uiSource);
+ err = alGetError();
+ if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error occurred during playback: %08x", err);
+ }
+ }
+
+ alGetSourcei(uiSource, AL_SOURCE_STATE, &iState);
+ if (iState != AL_PLAYING)
+ {
+ // Buffer underrun occurred, resume playback
+ alSourcePlay(uiSource);
+ err = alGetError();
+ if (err != 0)
+ {
+ ERROR_LOG(AUDIO, "Error occurred resuming playback: %08x", err);
+ }
+ }
+ }
+ else
+ {
+ soundSyncEvent.Wait();
+ }
+ }
}
-#endif //HAVE_OPENAL
-
+#endif // HAVE_OPENAL