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coreaudio backend make sound now

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4814 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
tmator
2010-01-12 22:35:28 +00:00
parent af08186daa
commit 4172928b14
3 changed files with 24 additions and 25 deletions
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43
Source/Core/AudioCommon/Src/CoreAudioSoundStream.cpp
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@ -26,18 +26,14 @@ typedef struct internal
OSStatus callback(void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData) {
UInt32 remaining, len;
void *ptr;
AudioBuffer *data;
internal *soundStruct = (internal *)inRefCon;
data = &ioData->mBuffers[0];
len = data->mDataByteSize;
ptr = data->mData;
memcpy(ptr, soundStruct->realtimeBuffer, len);
for (int i=0; i < (int)ioData->mNumberBuffers; i++)
{
memcpy(ioData->mBuffers[i].mData, &soundStruct->realtimeBuffer, ioData->mBuffers[i].mDataByteSize);
}
return 0;
}
@ -62,13 +58,16 @@ bool CoreAudioSound::CoreAudioInit()
OSStatus err;
UInt32 enableIO;
AURenderCallbackStruct callback_struct;
UInt32 shouldAllocateBuffer = 1;
AudioStreamBasicDescription format;
UInt32 numBytesToRender = 512;
internal *soundStruct = (internal *)malloc(sizeof(internal));
memset(soundStruct->realtimeBuffer, 0, sizeof(soundStruct->realtimeBuffer));
desc.componentType = kAudioUnitType_Output;
desc.componentSubType = kAudioUnitSubType_HALOutput;
desc.componentFlags = 0;
desc.componentFlagsMask = 0;
desc.componentManufacturer = kAudioUnitManufacturer_Apple;
Component component = FindNextComponent(NULL, &desc);
@ -88,22 +87,18 @@ bool CoreAudioSound::CoreAudioInit()
&enableIO,
sizeof(enableIO));
AudioUnitSetProperty(soundStruct->audioUnit, kAudioUnitProperty_ShouldAllocateBuffer, kAudioUnitScope_Global, 1, &shouldAllocateBuffer, sizeof(shouldAllocateBuffer));
if (err)
printf("error while allocate audiounit buffer\n");
format.mBitsPerChannel = 16;
format.mChannelsPerFrame = 2;
format.mBytesPerPacket = sizeof(float);
format.mBytesPerFrame = sizeof(float);
format.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kLinearPCMFormatFlagIsNonInterleaved;
format.mBytesPerPacket = 4;
format.mBytesPerFrame = 4;
format.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
format.mFormatID = kAudioFormatLinearPCM;
format.mFramesPerPacket = 1;
format.mSampleRate = m_mixer->GetSampleRate();
//set format to output scope
err = AudioUnitSetProperty(soundStruct->audioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &format, sizeof(AudioStreamBasicDescription));
err = AudioUnitSetProperty(soundStruct->audioUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &format, sizeof(AudioStreamBasicDescription));
if (err)
printf("error when setting output format\n");
@ -113,7 +108,7 @@ bool CoreAudioSound::CoreAudioInit()
err = AudioUnitSetProperty(soundStruct->audioUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, 0, &callback_struct, sizeof(callback_struct));
if (err)
printf("error when setting output callback\n");
printf("error when setting input callback\n");
err = AudioUnitInitialize(soundStruct->audioUnit);
if (err)
@ -125,9 +120,11 @@ bool CoreAudioSound::CoreAudioInit()
while(!threadData)
{
m_mixer->Mix(soundStruct->realtimeBuffer, 2048);
soundCriticalSection.Enter();
m_mixer->Mix(soundStruct->realtimeBuffer, numBytesToRender);
soundCriticalSection.Leave();
soundSyncEvent.Wait();
}
return true;
}
@ -144,9 +141,7 @@ bool CoreAudioSound::Start()
{
soundSyncEvent.Init();
thread = new Common::Thread(coreAudioThread, (void *)this);
return true;
}
@ -161,6 +156,6 @@ void CoreAudioSound::Stop()
}
void CoreAudioSound::Update()
{
return;
soundSyncEvent.Set();
}