Merged with trunk R920.
git-svn-id: svn://localhost/ardour2/branches/midi@921 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
David Robillard
179
libs/appleutility/CABufferList.cpp
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179
libs/appleutility/CABufferList.cpp
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/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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("Apple") in consideration of your agreement to the following terms, and your
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use, installation, modification or redistribution of this Apple software
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constitutes acceptance of these terms. If you do not agree with these terms,
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please do not use, install, modify or redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and subject
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to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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copyrights in this original Apple software (the "Apple Software"), to use,
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reproduce, modify and redistribute the Apple Software, with or without
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modifications, in source and/or binary forms; provided that if you redistribute
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the Apple Software in its entirety and without modifications, you must retain
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this notice and the following text and disclaimers in all such redistributions of
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the Apple Software. Neither the name, trademarks, service marks or logos of
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Apple Computer, Inc. may be used to endorse or promote products derived from the
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Apple Software without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or implied,
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are granted by Apple herein, including but not limited to any patent rights that
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may be infringed by your derivative works or by other works in which the Apple
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Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*=============================================================================
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CABufferList.cpp
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=============================================================================*/
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#include "CABufferList.h"
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#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
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#include <CoreServices/CoreServices.h>
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#else
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#include <Endian.h>
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#endif
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void CABufferList::AllocateBuffers(UInt32 nBytes)
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{
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if (nBytes <= GetNumBytes()) return;
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if (mNumberBuffers > 1)
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// align successive buffers for Altivec and to take alternating
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// cache line hits by spacing them by odd multiples of 16
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nBytes = (nBytes + (0x10 - (nBytes & 0xF))) | 0x10;
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UInt32 memorySize = nBytes * mNumberBuffers;
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Byte *newMemory = new Byte[memorySize], *p = newMemory;
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memset(newMemory, 0, memorySize); // get page faults now, not later
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AudioBuffer *buf = mBuffers;
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for (UInt32 i = mNumberBuffers; i--; ++buf) {
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if (buf->mData != NULL && buf->mDataByteSize > 0)
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// preserve existing buffer contents
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memcpy(p, buf->mData, buf->mDataByteSize);
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buf->mDataByteSize = nBytes;
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buf->mData = p;
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p += nBytes;
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}
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Byte *oldMemory = mBufferMemory;
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mBufferMemory = newMemory;
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delete[] oldMemory;
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}
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void CABufferList::AllocateBuffersAndCopyFrom(UInt32 nBytes, CABufferList *inSrcList, CABufferList *inSetPtrList)
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{
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if (mNumberBuffers != inSrcList->mNumberBuffers) return;
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if (mNumberBuffers != inSetPtrList->mNumberBuffers) return;
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if (nBytes <= GetNumBytes()) {
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CopyAllFrom(inSrcList, inSetPtrList);
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return;
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}
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inSetPtrList->VerifyNotTrashingOwnedBuffer();
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UInt32 fromByteSize = inSrcList->GetNumBytes();
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if (mNumberBuffers > 1)
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// align successive buffers for Altivec and to take alternating
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// cache line hits by spacing them by odd multiples of 16
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nBytes = (nBytes + (0x10 - (nBytes & 0xF))) | 0x10;
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UInt32 memorySize = nBytes * mNumberBuffers;
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Byte *newMemory = new Byte[memorySize], *p = newMemory;
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memset(newMemory, 0, memorySize); // make buffer "hot"
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AudioBuffer *buf = mBuffers;
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AudioBuffer *ptrBuf = inSetPtrList->mBuffers;
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AudioBuffer *srcBuf = inSrcList->mBuffers;
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for (UInt32 i = mNumberBuffers; i--; ++buf, ++ptrBuf, ++srcBuf) {
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if (srcBuf->mData != NULL && srcBuf->mDataByteSize > 0)
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// preserve existing buffer contents
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memmove(p, srcBuf->mData, srcBuf->mDataByteSize);
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buf->mDataByteSize = nBytes;
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buf->mData = p;
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ptrBuf->mDataByteSize = srcBuf->mDataByteSize;
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ptrBuf->mData = p;
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p += nBytes;
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}
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Byte *oldMemory = mBufferMemory;
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mBufferMemory = newMemory;
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if (inSrcList != inSetPtrList)
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inSrcList->BytesConsumed(fromByteSize);
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delete[] oldMemory;
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}
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void CABufferList::DeallocateBuffers()
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{
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AudioBuffer *buf = mBuffers;
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for (UInt32 i = mNumberBuffers; i--; ++buf) {
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buf->mData = NULL;
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buf->mDataByteSize = 0;
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}
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if (mBufferMemory != NULL) {
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delete[] mBufferMemory;
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mBufferMemory = NULL;
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}
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}
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extern "C" void CAShowAudioBufferList(const AudioBufferList *abl, int framesToPrint, int wordSize)
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{
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printf("AudioBufferList @ %p:\n", abl);
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const AudioBuffer *buf = abl->mBuffers;
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for (UInt32 i = 0; i < abl->mNumberBuffers; ++i, ++buf) {
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printf(" [%2ld]: %2ldch, %5ld bytes @ %8p",
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i, buf->mNumberChannels, buf->mDataByteSize, buf->mData);
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if (framesToPrint) {
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printf(":");
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Byte *p = (Byte *)buf->mData;
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for (int j = framesToPrint * buf->mNumberChannels; --j >= 0; )
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switch (wordSize) {
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case 0:
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printf(" %6.3f", *(Float32 *)p);
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p += sizeof(Float32);
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break;
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case 1:
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case -1:
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printf(" %02X", *p);
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p += 1;
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break;
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case 2:
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printf(" %04X", EndianU16_BtoN(*(UInt16 *)p));
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p += 2;
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break;
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case 3:
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printf(" %06X", (p[0] << 16) | (p[1] << 8) | p[2]);
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p += 3;
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break;
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case 4:
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printf(" %08lX", EndianU32_BtoN(*(UInt32 *)p));
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p += 4;
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break;
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case -2:
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printf(" %04X", EndianU16_LtoN(*(UInt16 *)p));
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p += 2;
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break;
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case -3:
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printf(" %06X", (p[2] << 16) | (p[1] << 8) | p[0]);
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p += 3;
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break;
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case -4:
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printf(" %08lX", EndianU32_LtoN(*(UInt32 *)p));
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p += 4;
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break;
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}
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}
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printf("\n");
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}
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}
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