diff options
Diffstat (limited to 'libs/appleutility/CAAudioUnit.cpp')
| -rw-r--r-- | libs/appleutility/CAAudioUnit.cpp | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/libs/appleutility/CAAudioUnit.cpp b/libs/appleutility/CAAudioUnit.cpp index 853cfc124c..f0b0890c51 100644 --- a/libs/appleutility/CAAudioUnit.cpp +++ b/libs/appleutility/CAAudioUnit.cpp @@ -55,7 +55,7 @@ struct StackAUChannelInfo { StackAUChannelInfo (UInt32 inSize) : mChanInfo ((AUChannelInfo*)malloc (inSize)) {} ~StackAUChannelInfo() { free (mChanInfo); } - + AUChannelInfo* mChanInfo; }; @@ -77,9 +77,9 @@ public: { Init(); } - + ~AUState(); - + AudioUnit mUnit; AUNode mNode; @@ -89,7 +89,7 @@ public: if (mGetParamProc != NULL) { return reinterpret_cast<AudioUnitGetParameterProc>(mGetParamProc) (mConnInstanceStorage, inID, scope, element, &outValue); - } + } return AudioUnitGetParameter(mUnit, inID, scope, element, &outValue); } @@ -99,10 +99,10 @@ public: if (mSetParamProc != NULL) { return reinterpret_cast<AudioUnitSetParameterProc>(mSetParamProc) (mConnInstanceStorage, inID, scope, element, value, bufferOffsetFrames); - } + } return AudioUnitSetParameter(mUnit, inID, scope, element, value, bufferOffsetFrames); } - + OSStatus Render (AudioUnitRenderActionFlags * ioActionFlags, const AudioTimeStamp * inTimeStamp, UInt32 inOutputBusNumber, @@ -112,10 +112,10 @@ public: if (mRenderProc != NULL) { return reinterpret_cast<AudioUnitRenderProc>(mRenderProc) (mConnInstanceStorage, ioActionFlags, inTimeStamp, inOutputBusNumber, inNumberFrames, ioData); - } + } return AudioUnitRender(mUnit, ioActionFlags, inTimeStamp, inOutputBusNumber, inNumberFrames, ioData); } - + OSStatus MIDIEvent (UInt32 inStatus, UInt32 inData1, UInt32 inData2, @@ -177,13 +177,13 @@ private: kAudioUnitScope_Global, kMusicDeviceMIDIEventSelect, &mMIDIEventProc, &size) != noErr) mMIDIEventProc = NULL; - + if (mRenderProc || mGetParamProc || mSetParamProc || mMIDIEventProc) mConnInstanceStorage = GetComponentInstanceStorage(mUnit); else mConnInstanceStorage = NULL; } - + ProcPtr mRenderProc, mGetParamProc, mSetParamProc, mMIDIEventProc; void * mConnInstanceStorage; @@ -193,9 +193,9 @@ private: AUState () {} AUState (const AUState& other) : CAReferenceCounted (other) {} AUState& operator= (const AUState&) { return *this; } -}; - - +}; + + CAAudioUnit::AUState::~AUState () { if (mUnit && (mNode == 0)) { @@ -246,13 +246,13 @@ CAAudioUnit& CAAudioUnit::operator= (const CAAudioUnit &a) if (mDataPtr != a.mDataPtr) { if (mDataPtr) mDataPtr->release(); - + if ((mDataPtr = a.mDataPtr) != NULL) mDataPtr->retain(); - + mComp = a.mComp; } - + return *this; } @@ -270,13 +270,13 @@ bool CAAudioUnit::operator== (const AudioUnit& y) const return mDataPtr->mUnit == y; } -#pragma mark __State Management +#pragma mark __State Management bool CAAudioUnit::IsValid () const { return mDataPtr ? mDataPtr->mUnit != 0 : false; } - + AudioUnit CAAudioUnit::AU() const { return mDataPtr ? mDataPtr->mUnit : 0; @@ -288,10 +288,10 @@ AUNode CAAudioUnit::GetAUNode () const } #pragma mark __Format Handling - + bool CAAudioUnit::CanDo ( int inChannelsIn, int inChannelsOut) const -{ +{ // this is the default assumption of an audio effect unit Boolean* isWritable = 0; UInt32 dataSize = 0; @@ -300,7 +300,7 @@ bool CAAudioUnit::CanDo ( int inChannelsIn, kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, &dataSize, isWritable); //don't care if this is writable - + // if this property is NOT implemented an FX unit // is expected to deal with same channel valance in and out if (result) @@ -317,14 +317,14 @@ bool CAAudioUnit::CanDo ( int inChannelsIn, return false; } } - + StackAUChannelInfo info (dataSize); - + result = GetProperty (kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, info.mChanInfo, &dataSize); if (result) { return false; } - + return ValidateChannelPair (inChannelsIn, inChannelsOut, info.mChanInfo, (dataSize / sizeof (AUChannelInfo))); } @@ -338,10 +338,10 @@ int CAAudioUnit::GetChannelInfo (AUChannelInfo** chaninfo, UInt32& cnt) kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, &dataSize, isWritable); //don't care if this is writable - + // if this property is NOT implemented an FX unit // is expected to deal with same channel valance in and out - + if (result) { if (Comp().Desc().IsEffect()) @@ -452,7 +452,7 @@ bool CAAudioUnit::ValidateChannelPair (int inChannelsIn, } } } - + // special meaning on input, specific num on output else if (info[i].inChannels < 0) { if (info[i].outChannels == inChannelsOut) @@ -471,7 +471,7 @@ bool CAAudioUnit::ValidateChannelPair (int inChannelsIn, } } } - + // special meaning on output, specific num on input else if (info[i].outChannels < 0) { if (info[i].inChannels == inChannelsIn) @@ -495,7 +495,7 @@ bool CAAudioUnit::ValidateChannelPair (int inChannelsIn, else if ((info[i].inChannels == inChannelsIn) && (info[i].outChannels == inChannelsOut)) { return true; } - + // now check to see if a wild card on the args (inChannelsIn or inChannelsOut chans is zero) is found // tells us to match just one side of the scopes else if (inChannelsIn == 0) { @@ -509,7 +509,7 @@ bool CAAudioUnit::ValidateChannelPair (int inChannelsIn, } } } - + return false; } @@ -553,14 +553,14 @@ bool CAAudioUnit::CanDo (const CAAUChanHelper &inputs, // first check our state // huh! if (inputs.mNumEls == 0 && outputs.mNumEls == 0) return false; - + UInt32 elCount; if (GetElementCount (kAudioUnitScope_Input, elCount)) { return false; } if (elCount != inputs.mNumEls) return false; if (GetElementCount (kAudioUnitScope_Output, elCount)) { return false; } if (elCount != outputs.mNumEls) return false; - + // (1) special cases (effects and sources (generators and instruments) only) UInt32 dataSize = 0; if (GetPropertyInfo (kAudioUnitProperty_SupportedNumChannels, @@ -574,7 +574,7 @@ bool CAAudioUnit::CanDo (const CAAUChanHelper &inputs, if (numChan != outputs.mChans[out]) return false; return true; } - + // in this case, all the channels have to match the current config if (Comp().Desc().IsGenerator() || Comp().Desc().IsMusicDevice()) { for (unsigned int in = 0; in < inputs.mNumEls; ++in) { @@ -589,22 +589,22 @@ bool CAAudioUnit::CanDo (const CAAUChanHelper &inputs, } return true; } - + // if we get here we can't determine anything about channel capabilities return false; } StackAUChannelInfo info (dataSize); - + if (GetProperty (kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, info.mChanInfo, &dataSize) != noErr) { return false; } - + int numInfo = dataSize / sizeof(AUChannelInfo); - + // (2) Test for dynamic capability (or no elements on that scope) SInt32 dynInChans = 0; if (ValidateDynamicScope (kAudioUnitScope_Input, dynInChans, info.mChanInfo, numInfo)) { @@ -655,7 +655,7 @@ bool CAAudioUnit::CanDo (const CAAUChanHelper &inputs, } } } - + return true; } @@ -669,7 +669,7 @@ bool CAAudioUnit::SupportsNumChannels () const kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, &dataSize, isWritable); //don't care if this is writable - + // if this property is NOT implemented an FX unit // is expected to deal with same channel valance in and out if (result) { @@ -702,7 +702,7 @@ bool CAAudioUnit::GetChannelLayouts (AudioUnitScope inScope, } if (result) return false; - + bool canDo = false; // OK lets get our channel layouts and see if the one we want is present AudioChannelLayoutTag* info = (AudioChannelLayoutTag*)malloc (dataSize); @@ -711,7 +711,7 @@ bool CAAudioUnit::GetChannelLayouts (AudioUnitScope inScope, inScope, inEl, info, &dataSize); if (result) goto home; - + outChannelVector.erase (outChannelVector.begin(), outChannelVector.end()); for (unsigned int i = 0; i < (dataSize / sizeof (AudioChannelLayoutTag)); ++i) outChannelVector.push_back (info[i]); @@ -739,14 +739,14 @@ OSStatus CAAudioUnit::GetChannelLayout (AudioUnitScope inScope, OSStatus result = AudioUnitGetPropertyInfo (AU(), kAudioUnitProperty_AudioChannelLayout, inScope, inEl, &size, NULL); if (result) return result; - + AudioChannelLayout *layout = (AudioChannelLayout*)malloc (size); require_noerr (result = AudioUnitGetProperty (AU(), kAudioUnitProperty_AudioChannelLayout, inScope, inEl, layout, &size), home); outLayout = CAAudioChannelLayout (layout); - + home: free (layout); return result; @@ -827,7 +827,7 @@ OSStatus CAAudioUnit::SetSampleRate (AudioUnitScope inScope, OSStatus CAAudioUnit::SetSampleRate (Float64 inSampleRate) { OSStatus result; - + UInt32 elCount; require_noerr (result = GetElementCount(kAudioUnitScope_Input, elCount), home); if (elCount) { @@ -842,7 +842,7 @@ OSStatus CAAudioUnit::SetSampleRate (Float64 inSampleRate) require_noerr (result = SetSampleRate (kAudioUnitScope_Output, i, inSampleRate), home); } } - + home: return result; } @@ -879,7 +879,7 @@ OSStatus CAAudioUnit::IsElementCountWritable (AudioUnitScope inScope, bool &out if (result) return result; outWritable = isWritable ? true : false; - return noErr; + return noErr; } OSStatus CAAudioUnit::GetElementCount (AudioUnitScope inScope, UInt32 &outCount) const @@ -902,12 +902,12 @@ bool CAAudioUnit::HasDynamicScope (AudioUnitScope inScope, SInt32 &outTotalNum OSStatus result = GetPropertyInfo (kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, &dataSize, isWritable); //don't care if this is writable - + // AU has to explicitly tell us about this. if (result) return false; StackAUChannelInfo info (dataSize); - + result = GetProperty (kAudioUnitProperty_SupportedNumChannels, kAudioUnitScope_Global, 0, info.mChanInfo, &dataSize); @@ -945,36 +945,36 @@ bool CAAudioUnit::ValidateDynamicScope (AudioUnitScope inScope, outTotalNumChannels = -1; return true; } - + // ok lets now test our special case.... if (inScope == kAudioUnitScope_Input) { // isn't dynamic on this side at least if (info[i].inChannels >= 0) continue; - + if (info[i].inChannels < -2) { outTotalNumChannels = abs (info[i].inChannels); return true; } } - + else if (inScope == kAudioUnitScope_Output) { // isn't dynamic on this side at least if (info[i].outChannels >= 0) continue; - + if (info[i].outChannels < -2) { outTotalNumChannels = abs (info[i].outChannels); return true; } } - + else { break; // wrong scope was specified } } - - return false; + + return false; } OSStatus CAAudioUnit::ConfigureDynamicScope (AudioUnitScope inScope, @@ -986,7 +986,7 @@ OSStatus CAAudioUnit::ConfigureDynamicScope (AudioUnitScope inScope, bool isDyamic = HasDynamicScope (inScope, numChannels); if (isDyamic == false) return kAudioUnitErr_InvalidProperty; - + //lets to a sanity check... // if numChannels == -1, then it can do "any"... if (numChannels > 0) { @@ -996,11 +996,11 @@ OSStatus CAAudioUnit::ConfigureDynamicScope (AudioUnitScope inScope, if (count > numChannels) return kAudioUnitErr_InvalidPropertyValue; } - + OSStatus result = SetElementCount (inScope, inNumElements); if (result) return result; - + CAStreamBasicDescription desc; desc.mSampleRate = inSampleRate; for (unsigned int i = 0; i < inNumElements; ++i) { @@ -1034,7 +1034,7 @@ bool CAAudioUnit::GetBypass () const } OSStatus CAAudioUnit::SetBypass (bool inBypass) const -{ +{ UInt32 bypass = inBypass ? 1 : 0; return AudioUnitSetProperty (AU(), kAudioUnitProperty_BypassEffect, kAudioUnitScope_Global, 0, @@ -1085,7 +1085,7 @@ OSStatus CAAudioUnit::GetPresentPreset (AUPreset &outData) const } return result; } - + OSStatus CAAudioUnit::SetPresentPreset (AUPreset &inData) { OSStatus result = AudioUnitSetProperty (AU(), kAudioUnitProperty_PresentPreset, @@ -1184,18 +1184,18 @@ OSStatus CAAudioUnit::Preroll (UInt32 inFrameSize) CAStreamBasicDescription desc; OSStatus result = GetFormat (kAudioUnitScope_Input, 0, desc); bool hasInput = false; - //we have input + //we have input if (result == noErr) { sRenderCallback.inputProc = PrerollRenderProc; sRenderCallback.inputProcRefCon = 0; - + result = SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &sRenderCallback, sizeof(sRenderCallback)); if (result) return result; hasInput = true; } - + AudioUnitRenderActionFlags flags = 0; AudioTimeStamp time; memset (&time, 0, sizeof(time)); @@ -1206,7 +1206,7 @@ OSStatus CAAudioUnit::Preroll (UInt32 inFrameSize) { AUOutputBL list (outputFormat, inFrameSize); list.Prepare (); - + require_noerr (result = Render (&flags, &time, 0, inFrameSize, list.ABL()), home); require_noerr (result = GlobalReset(), home); } @@ -1216,7 +1216,7 @@ home: // remove our installed callback sRenderCallback.inputProc = 0; sRenderCallback.inputProcRefCon = 0; - + SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &sRenderCallback, sizeof(sRenderCallback)); } @@ -1262,7 +1262,7 @@ CAAUChanHelper& CAAUChanHelper::operator= (const CAAUChanHelper &c) mChans = mStaticChans; } memcpy (mChans, c.mChans, c.mNumEls * sizeof(int)); - + return *this; } |