diff options
Diffstat (limited to 'libs/appleutility/CoreAudio/PublicUtility/CABufferList.h')
| -rw-r--r-- | libs/appleutility/CoreAudio/PublicUtility/CABufferList.h | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CABufferList.h b/libs/appleutility/CoreAudio/PublicUtility/CABufferList.h index 72c93f8626..67bf272867 100644 --- a/libs/appleutility/CoreAudio/PublicUtility/CABufferList.h +++ b/libs/appleutility/CoreAudio/PublicUtility/CABufferList.h @@ -2,14 +2,14 @@ File: CABufferList.h Abstract: Part of CoreAudio Utility Classes Version: 1.1 - + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple 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 Apple's copyrights in this original Apple software (the @@ -25,13 +25,13 @@ 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 @@ -40,9 +40,9 @@ 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. - + Copyright (C) 2014 Apple Inc. All Rights Reserved. - + */ #ifndef __CABufferList_h__ #define __CABufferList_h__ @@ -61,7 +61,7 @@ extern "C" int CrashIfClientProvidedBogusAudioBufferList(const AudioBufferList * This class is designed for use in non-simplistic cases. For AudioUnits, AUBufferList is preferred. - + CABufferList can be used in one of two ways: - as mutable pointers into non-owned memory - as an immutable array of buffers (owns its own memory). @@ -107,20 +107,20 @@ public: if (mBufferMemory) delete[] mBufferMemory; } - + const char * Name() { return mName; } - + const AudioBufferList & GetBufferList() const { return mABL; } - + AudioBufferList & GetModifiableBufferList() { return _GetBufferList(); } - + UInt32 GetNumberBuffers() const { return mABL.mNumberBuffers; } - + UInt32 GetNumBytes() const { return mABL.mBuffers[0].mDataByteSize; } - + void SetBytes(UInt32 nBytes, void *data) { VerifyNotTrashingOwnedBuffer(); @@ -128,7 +128,7 @@ public: mABL.mBuffers[0].mDataByteSize = nBytes; mABL.mBuffers[0].mData = data; } - + void CopyAllFrom(CABufferList *srcbl, CABufferList *ptrbl) // copies bytes from srcbl // make ptrbl reflect the length copied @@ -150,17 +150,17 @@ public: if (srcbl != ptrbl) srcbl->BytesConsumed(nBytes); } - + // copies data from another buffer list. void CopyDataFrom(const AudioBufferList &other) { for (unsigned i = 0; i < other.mNumberBuffers; ++i) { XAssert(mBufferCapacity == 0 || other.mBuffers[i].mDataByteSize <= mBufferCapacity); - memcpy(mABL.mBuffers[i].mData, other.mBuffers[i].mData, + memcpy(mABL.mBuffers[i].mData, other.mBuffers[i].mData, mABL.mBuffers[i].mDataByteSize = other.mBuffers[i].mDataByteSize); } } - + void AppendFrom(CABufferList *blp, UInt32 nBytes) { // this may mutate a buffer that owns memory. @@ -173,7 +173,7 @@ public: } blp->BytesConsumed(nBytes); } - + void PadWithZeroes(UInt32 desiredBufferSize) // for cases where an algorithm (e.g. SRC) requires some // padding to create silence following end-of-file @@ -186,7 +186,7 @@ public: buf->mDataByteSize = desiredBufferSize; } } - + void SetToZeroes(UInt32 nBytes) { XAssert(mBufferCapacity == 0 || nBytes <= mBufferCapacity); @@ -196,23 +196,23 @@ public: buf->mDataByteSize = nBytes; } } - + void Reset() { DeallocateBuffers(); } - + Boolean SameDataAs(const CABufferList* anotherBufferList) { // check to see if two buffer lists point to the same memory. if (mABL.mNumberBuffers != anotherBufferList->mABL.mNumberBuffers) return false; - + for (UInt32 i = 0; i < mABL.mNumberBuffers; ++i) { if (mABL.mBuffers[i].mData != anotherBufferList->mABL.mBuffers[i].mData) return false; } return true; } - + void BytesConsumed(UInt32 nBytes) // advance buffer pointers, decrease buffer sizes { @@ -224,18 +224,18 @@ public: buf->mDataByteSize -= nBytes; } } - + void SetFrom(const AudioBufferList *abl) { VerifyNotTrashingOwnedBuffer(); memcpy(&_GetBufferList(), abl, (char *)&abl->mBuffers[abl->mNumberBuffers] - (char *)abl); } - + void SetFrom(const CABufferList *blp) { SetFrom(&blp->GetBufferList()); } - + void SetFrom(const AudioBufferList *abl, UInt32 nBytes) { VerifyNotTrashingOwnedBuffer(); @@ -247,25 +247,25 @@ public: mybuf->mData = srcbuf->mData; } } - + void SetFrom(const CABufferList *blp, UInt32 nBytes) { SetFrom(&blp->GetBufferList(), nBytes); } - + AudioBufferList * ToAudioBufferList(AudioBufferList *abl) const { memcpy(abl, &GetBufferList(), (char *)&abl->mBuffers[mABL.mNumberBuffers] - (char *)abl); return abl; } - + void AllocateBuffers(UInt32 nBytes); void AllocateBuffersAndCopyFrom(UInt32 nBytes, CABufferList *inCopyFromList, CABufferList *inSetPtrList); - + void DeallocateBuffers(); - + void UseExternalBuffer(Byte *ptr, UInt32 nBytes); - + void AdvanceBufferPointers(UInt32 nBytes) // $$$ ReducingSize // this is for bufferlists that function simply as // an array of pointers into another bufferlist, being advanced, @@ -278,7 +278,7 @@ public: buf->mDataByteSize -= nBytes; } } - + void SetNumBytes(UInt32 nBytes) { XAssert(mBufferCapacity == 0 || nBytes <= mBufferCapacity); @@ -296,9 +296,9 @@ public: if (mBufferMemory) printf(" owned memory @ 0x%p:\n", mBufferMemory); } - + UInt32 GetCapacityBytes() const { return mBufferCapacity; } - + template <typename T> T* GetData(UInt32 inBuffer) { return static_cast<T*>(mABL.mBuffers[inBuffer].mData); |