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Diffstat (limited to 'libs/appleutility/AUOutputBL.cpp')
| -rw-r--r-- | libs/appleutility/AUOutputBL.cpp | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/libs/appleutility/AUOutputBL.cpp b/libs/appleutility/AUOutputBL.cpp deleted file mode 100644 index 8509f46288..0000000000 --- a/libs/appleutility/AUOutputBL.cpp +++ /dev/null @@ -1,160 +0,0 @@ -/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved. - - Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. - ("Apple") in consideration of your agreement to the following terms, and your - use, installation, modification or redistribution of this Apple software - constitutes acceptance of these terms. If you do not agree with these terms, - please do not use, install, modify or redistribute this Apple software. - - In consideration of your agreement to abide by the following terms, and subject - to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs - copyrights in this original Apple software (the "Apple Software"), to use, - reproduce, modify and redistribute the Apple Software, with or without - modifications, in source and/or binary forms; provided that if you redistribute - the Apple Software in its entirety and without modifications, you must retain - this notice and the following text and disclaimers in all such redistributions of - the Apple Software. Neither the name, trademarks, service marks or logos of - Apple Computer, Inc. may be used to endorse or promote products derived from the - Apple Software without specific prior written permission from Apple. Except as - expressly stated in this notice, no other rights or licenses, express or implied, - are granted by Apple herein, including but not limited to any patent rights that - may be infringed by your derivative works or by other works in which the Apple - Software may be incorporated. - - The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO - WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED - WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR - PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN - COMBINATION WITH YOUR PRODUCTS. - - IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION - OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT - (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -/*============================================================================= - AUOutputBL.h - -=============================================================================*/ -#include "AUOutputBL.h" - -/* -struct AudioBufferList -{ - UInt32 mNumberBuffers; - AudioBuffer mBuffers[1]; -}; -struct AudioBuffer -{ - UInt32 mNumberChannels; // number of interleaved channels in the buffer - UInt32 mDataByteSize; // the size of the buffer pointed to by mData - void* mData; // the pointer to the buffer -}; -*/ - -AUOutputBL::AUOutputBL (const CAStreamBasicDescription &inDesc, UInt32 inDefaultNumFrames) - : mFormat (inDesc), - mBufferMemory(NULL), - mBufferList (NULL), - mNumberBuffers (0), // keep this here, so can ensure integrity of ABL - mBufferSize (0), - mFrames(inDefaultNumFrames) -{ - mNumberBuffers = mFormat.IsInterleaved() ? 1 : mFormat.NumberChannels(); - mBufferList = reinterpret_cast<AudioBufferList*>(new Byte[sizeof(UInt32) + (mNumberBuffers * sizeof(AudioBuffer))]); -} - -AUOutputBL::~AUOutputBL() -{ - if (mBufferMemory) - delete[] mBufferMemory; - - if (mBufferList) - delete [] mBufferList; -} - -void AUOutputBL::Prepare (UInt32 inNumFrames, bool inWantNullBufferIfAllocated) -{ - UInt32 channelsPerBuffer = mFormat.IsInterleaved() ? mFormat.NumberChannels() : 1; - - if (mBufferMemory == NULL || inWantNullBufferIfAllocated) - { - mBufferList->mNumberBuffers = mNumberBuffers; - AudioBuffer *buf = &mBufferList->mBuffers[0]; - for (UInt32 i = 0; i < mNumberBuffers; ++i, ++buf) { - buf->mNumberChannels = channelsPerBuffer; - buf->mDataByteSize = mFormat.FramesToBytes (inNumFrames); - buf->mData = NULL; - } - } - else - { - UInt32 nBytes = mFormat.FramesToBytes (inNumFrames); - if ((nBytes * mNumberBuffers) > AllocatedBytes()) - throw OSStatus(-10874);//(kAudioUnitErr_TooManyFramesToProcess); - - mBufferList->mNumberBuffers = mNumberBuffers; - AudioBuffer *buf = &mBufferList->mBuffers[0]; - Byte* p = mBufferMemory; - for (UInt32 i = 0; i < mNumberBuffers; ++i, ++buf) { - buf->mNumberChannels = channelsPerBuffer; - buf->mDataByteSize = nBytes; - buf->mData = p; - p += mBufferSize; - } - } -} - - -void AUOutputBL::Allocate (UInt32 inNumFrames) -{ - if (inNumFrames) - { - UInt32 nBytes = mFormat.FramesToBytes (inNumFrames); - - if (nBytes <= AllocatedBytes()) - return; - - // align successive buffers for Altivec and to take alternating - // cache line hits by spacing them by odd multiples of 16 - if (mNumberBuffers > 1) - nBytes = (nBytes + (0x10 - (nBytes & 0xF))) | 0x10; - - mBufferSize = nBytes; - - UInt32 memorySize = mBufferSize * mNumberBuffers; - Byte *newMemory = new Byte[memorySize]; - memset(newMemory, 0, memorySize); // make buffer "hot" - - Byte *oldMemory = mBufferMemory; - mBufferMemory = newMemory; - delete[] oldMemory; - - mFrames = inNumFrames; - } - else - { - if (mBufferMemory) { - delete [] mBufferMemory; - mBufferMemory = NULL; - } - mBufferSize = 0; - mFrames = 0; - } -} - -#if DEBUG -void AUOutputBL::Print() -{ - printf ("AUOutputBL::Print\n"); - mFormat.Print(); - printf ("Num Buffers:%ld, mFrames:%ld, allocatedMemory:%c\n", mBufferList->mNumberBuffers, mFrames, (mBufferMemory != NULL ? 'T' : 'F')); - AudioBuffer *buf = &mBufferList->mBuffers[0]; - for (UInt32 i = 0; i < mBufferList->mNumberBuffers; ++i, ++buf) - printf ("\tBuffer:%ld, Size:%ld, Chans:%ld, Buffer:%X\n", i, buf->mDataByteSize, buf->mNumberChannels, int(buf->mData)); -} -#endif - |