12228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 22228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* ----------------------------------------------------------------------------------------------------------- 32228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectSoftware License for The Fraunhofer FDK AAC Codec Library for Android 42228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 54f0d97057c5c640b25518358886f8c47da9fc052Jean-Michel Trivi� Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F�rderung der angewandten Forschung e.V. 62228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project All rights reserved. 72228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 82228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1. INTRODUCTION 92228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements 102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. 112228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is intended to be used on a wide variety of Android devices. 122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 132228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual 142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectaudio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by 152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindependent studies and is widely deployed. AAC has been standardized by ISO and IEC as part 162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof the MPEG specifications. 172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 182228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectPatent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) 192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmay be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners 202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindividually for the purpose of encoding or decoding bit streams in products that are compliant with 212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license 222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthese patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec 232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware may already be covered under those patent licenses when it is used for those licensed purposes only. 242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 252228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCommercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, 262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectare also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional 272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectapplications information and documentation. 282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project2. COPYRIGHT LICENSE 302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 312228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectRedistribution and use in source and binary forms, with or without modification, are permitted without 322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectpayment of copyright license fees provided that you satisfy the following conditions: 332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 342228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in redistributions of the FDK AAC Codec or 352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectyour modifications thereto in source code form. 362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 372228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in the documentation and/or other materials 382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprovided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. 392228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must make available free of charge copies of the complete source code of the FDK AAC Codec and your 402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmodifications thereto to recipients of copies in binary form. 412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 422228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe name of Fraunhofer may not be used to endorse or promote products derived from this library without 432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprior written permission. 442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 452228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec 462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware or your modifications thereto. 472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 482228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYour modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software 492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectand the date of any change. For modified versions of the FDK AAC Codec, the term 502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term 512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." 522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project3. NO PATENT LICENSE 542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 552228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectNO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, 562228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with 572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectrespect to this software. 582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 592228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized 602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectby appropriate patent licenses. 612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project4. DISCLAIMER 632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 642228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors 652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties 662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 672228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, 682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectincluding but not limited to procurement of substitute goods or services; loss of use, data, or profits, 692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projector business interruption, however caused and on any theory of liability, whether in contract, strict 702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectliability, or tort (including negligence), arising in any way out of the use of this software, even if 712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectadvised of the possibility of such damage. 722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project5. CONTACT INFORMATION 742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 752228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectFraunhofer Institute for Integrated Circuits IIS 762228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAttention: Audio and Multimedia Departments - FDK AAC LL 772228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAm Wolfsmantel 33 782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project91058 Erlangen, Germany 792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectwww.iis.fraunhofer.de/amm 812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectamm-info@iis.fraunhofer.de 822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project----------------------------------------------------------------------------------------------------------- */ 832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*************************** Fraunhofer IIS FDK Tools *********************** 852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Author(s): M. Lohwasser 872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Description: common bitbuffer read/write routines 882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project******************************************************************************/ 902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "FDK_bitbuffer.h" 922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "genericStds.h" 972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "common_fix.h" 982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "fixminmax.h" 992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectconst UINT BitMask [32+1] = 1012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0x0, 0x1, 0x3, 0x7, 1032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xf, 0x1f, 0x3f, 0x7f, 1042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xff, 0x1ff, 0x3ff, 0x7ff, 1052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xfff, 0x1fff, 0x3fff, 0x7fff, 1062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xffff, 0x1ffff, 0x3ffff, 0x7ffff, 1072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xfffff, 0x1fffff, 0x3fffff, 0x7fffff, 1082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xffffff, 0x1ffffff, 0x3ffffff, 0x7ffffff, 1092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xfffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff, 1102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 0xffffffff 1112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project}; 1122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectconst UINT *const RESTRICT pBitMask = BitMask; 1142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_CreateBitBuffer (HANDLE_FDK_BITBUF *hBitBuf, UCHAR *pBuffer, 1162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bufSize) 1172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_InitBitBuffer (*hBitBuf, pBuffer, bufSize, 0); 1192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear((*hBitBuf)->Buffer, bufSize*sizeof(UCHAR)); 1212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 1222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_DeleteBitBuffer (HANDLE_FDK_BITBUF hBitBuf) { ; } 1242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_InitBitBuffer (HANDLE_FDK_BITBUF hBitBuf, UCHAR *pBuffer, 1262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bufSize, UINT validBits) 1272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits = validBits ; 1292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ReadOffset = 0 ; 1302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->WriteOffset = 0 ; 1312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt = 0 ; 1322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = 0 ; 1332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer = pBuffer ; 1352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->bufSize = bufSize ; 1362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->bufBits = (bufSize << 3) ; 1372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#if defined(FDK_DEBUG) || defined(DEBUG) 1382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /*assure bufsize (2^n) */ 1392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (bufSize!=0) { 1402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT x = 0, n=bufSize; 1412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (x=0; n>0; x++,n>>=1) {} 1422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( bufSize != (1<<(x-1)) ) { 1432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKprintfErr("Error: bufSizein FDK_InitBitBuffer() != (2^n), %d\n", bufSize); 1442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif 1472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 1482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_ResetBitBuffer ( HANDLE_FDK_BITBUF hBitBuf ) 1502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits = 0 ; 1522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ReadOffset = 0 ; 1532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->WriteOffset = 0 ; 1542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt = 0 ; 1552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = 0 ; 1562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 1572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1582228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_get (HANDLE_FDK_BITBUF hBitBuf, const UINT numberOfBits) 1592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = hBitBuf->BitNdx >> 3 ; 1612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitOffset = hBitBuf->BitNdx & 0x07 ; 1622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx + numberOfBits) & (hBitBuf->bufBits - 1) ; 1642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt += numberOfBits ; 1652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits -= numberOfBits ; 1662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteMask = hBitBuf->bufSize - 1 ; 1682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT tx = (hBitBuf->Buffer [ byteOffset & byteMask] << 24) | 1702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (hBitBuf->Buffer [(byteOffset+1) & byteMask] << 16) | 1712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (hBitBuf->Buffer [(byteOffset+2) & byteMask] << 8) | 1722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset+3) & byteMask]; 1732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (bitOffset) 1752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tx <<= bitOffset; 1772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tx |= hBitBuf->Buffer [(byteOffset+4) & byteMask] >> (8-bitOffset); 1782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (tx >> (32 - numberOfBits)) ; 1812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 1822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1832228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_get32 (HANDLE_FDK_BITBUF hBitBuf) 1842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT BitNdx = hBitBuf->BitNdx + 32; 1862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (BitNdx <= hBitBuf->bufBits) 1872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = BitNdx; 1892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt += 32; 1902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits -= 32; 1912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = (BitNdx-1) >> 3; 1932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT cache = (hBitBuf->Buffer[(byteOffset-3)] << 24) | 1942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (hBitBuf->Buffer[(byteOffset-2)] << 16) | 1952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (hBitBuf->Buffer[(byteOffset-1)] << 8) | 1962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer[(byteOffset-0)]; 1972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( (BitNdx = (BitNdx&7)) != 0 ) { 1992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project cache = (cache >> (8-BitNdx)) | ((UINT)hBitBuf->Buffer [byteOffset-4] << (24+BitNdx)); 2002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (cache) ; 2022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else 2042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* exotic path, used only at the end of the buffer, when wrapping around */ 2062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int nBits = (INT)hBitBuf->bufBits-(INT)hBitBuf->BitNdx; 2072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT cache = FDK_get (hBitBuf,nBits)<< (32-nBits); 2092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project cache |= (FDK_get (hBitBuf,32-nBits)); 2102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (cache); 2112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 2132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2142228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_getBwd (HANDLE_FDK_BITBUF hBitBuf, const UINT numberOfBits) 2152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 2162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = hBitBuf->BitNdx >> 3 ; 2172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitOffset = hBitBuf->BitNdx & 0x07 ; 2182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteMask = hBitBuf->bufSize - 1 ; 2192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i; 2202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx - numberOfBits) & (hBitBuf->bufBits - 1) ; 2222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt -= numberOfBits ; 2232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits += numberOfBits ; 2242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT tx = hBitBuf->Buffer [(byteOffset-3) & byteMask] << 24 | 2262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-2) & byteMask] << 16 | 2272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-1) & byteMask] << 8 | 2282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [ byteOffset & byteMask] ; 2292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT txa = 0x0; 2302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tx >>= (8 - bitOffset) ; 2322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (bitOffset && numberOfBits > 24) 2342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tx |= hBitBuf->Buffer [(byteOffset-4) & byteMask] << (24 + bitOffset) ; 2362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* in place turn around */ 2392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < 16; i++) { 2402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitMaskR = 0x00000001 << i; 2412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitMaskL = 0x80000000 >> i; 2422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project txa |= (tx & bitMaskR) << (31 - (i<<1)); 2442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project txa |= (tx & bitMaskL) >> (31 - (i<<1)); 2452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (txa >> (32 - numberOfBits)) ; 2482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 2492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_put (HANDLE_FDK_BITBUF hBitBuf, UINT value, const UINT numberOfBits) 2512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 2522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = hBitBuf->BitNdx >> 3 ; 2532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitOffset = hBitBuf->BitNdx & 0x07 ; 2542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx + numberOfBits) & (hBitBuf->bufBits - 1) ; 2562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt += numberOfBits ; 2572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits += numberOfBits ; 2582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteMask = hBitBuf->bufSize - 1 ; 2602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT tmp = value<<(32-numberOfBits)>>bitOffset; 2622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT mask = ~BitMask[(32-bitOffset)] | (BitMask [(32-numberOfBits)] >> bitOffset) ; 2632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [ byteOffset & byteMask] = (hBitBuf->Buffer [ byteOffset & byteMask]&(mask>>24)) | (UCHAR)(tmp>>24); 2652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset+1) & byteMask] = (hBitBuf->Buffer [(byteOffset+1) & byteMask]&(mask>>16)) | (UCHAR)(tmp>>16); 2662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset+2) & byteMask] = (hBitBuf->Buffer [(byteOffset+2) & byteMask]&(mask>>8)) | (UCHAR)(tmp>>8); 2672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset+3) & byteMask] = (hBitBuf->Buffer [(byteOffset+3) & byteMask]&(mask)) | (UCHAR)(tmp); 2682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (bitOffset && numberOfBits > 24) 2702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset+4) & byteMask] = (UCHAR)(value<<(40-numberOfBits)>>bitOffset) | 2722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ( hBitBuf->Buffer [(byteOffset+4) & byteMask] & BitMask[(40-numberOfBits-bitOffset)] ) ; 2732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 2752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_putBwd (HANDLE_FDK_BITBUF hBitBuf, UINT value, const UINT numberOfBits) 2772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 2782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = hBitBuf->BitNdx >> 3 ; 2792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitOffset = 7 - (hBitBuf->BitNdx & 0x07) ; 2802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteMask = hBitBuf->bufSize - 1 ; 2812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT mask = ~(BitMask[numberOfBits] << bitOffset) ; 2832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT tmp = 0x0000; 2842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i; 2852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx - numberOfBits) & (hBitBuf->bufBits - 1) ; 2872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt -= numberOfBits ; 2882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits -= numberOfBits ; 2892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* in place turn around */ 2912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = 0; i < 16; i++) { 2922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitMaskR = 0x00000001 << i; 2932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bitMaskL = 0x80000000 >> i; 2942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp |= (value & bitMaskR) << (31 - (i<<1)); 2962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp |= (value & bitMaskL) >> (31 - (i<<1)); 2972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project value = tmp; 2992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = value>>(32-numberOfBits)<<bitOffset; 3002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [ byteOffset & byteMask] = (hBitBuf->Buffer [ byteOffset & byteMask]&(mask)) | (UCHAR)(tmp); 3022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-1) & byteMask] = (hBitBuf->Buffer [(byteOffset-1) & byteMask]&(mask>>8)) | (UCHAR)(tmp>>8); 3032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-2) & byteMask] = (hBitBuf->Buffer [(byteOffset-2) & byteMask]&(mask>>16)) | (UCHAR)(tmp>>16); 3042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-3) & byteMask] = (hBitBuf->Buffer [(byteOffset-3) & byteMask]&(mask>>24)) | (UCHAR)(tmp>>24); 3052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((bitOffset + numberOfBits) > 32) 3072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->Buffer [(byteOffset-4) & byteMask] = (UCHAR)(value>>(64-numberOfBits-bitOffset)) | 3092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ( hBitBuf->Buffer [(byteOffset-4) & byteMask] & ~(BitMask[bitOffset] >> (32-numberOfBits)) ) ; 3102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_pushBack (HANDLE_FDK_BITBUF hBitBuf, const UINT numberOfBits, UCHAR config) 3152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt -= numberOfBits ; 3172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits += (config==0) ? numberOfBits : (-(INT)numberOfBits) ; 3182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx - numberOfBits) & (hBitBuf->bufBits - 1) ; 3192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_pushForward (HANDLE_FDK_BITBUF hBitBuf, const UINT numberOfBits, UCHAR config) 3222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt += numberOfBits ; 3242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits -= (config==0) ? numberOfBits : (-(INT)numberOfBits) ; 3252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitNdx = (hBitBuf->BitNdx + numberOfBits) & (hBitBuf->bufBits - 1) ; 3262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_byteAlign (HANDLE_FDK_BITBUF hBitBuf, UCHAR config) 3302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT alignment = hBitBuf->BitCnt & 0x07 ; 3322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (alignment) 3342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (config==0) 3362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_pushForward (hBitBuf, 8 - alignment, config) ; /* BS_READER */ 3372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else 3382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_put (hBitBuf,0 , 8 - alignment) ; /* BS_WRITER */ 3392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt = 0 ; 3422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3442228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectUINT FDK_getValidBits (HANDLE_FDK_BITBUF hBitBuf) 3452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return hBitBuf->ValidBits; 3472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3492228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_getFreeBits (HANDLE_FDK_BITBUF hBitBuf) 3502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (hBitBuf->bufBits - hBitBuf->ValidBits) ; 3522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_setBitCnt (HANDLE_FDK_BITBUF hBitBuf, const UINT value) 3552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->BitCnt = value ; 3572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3592228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectINT FDK_getBitCnt (HANDLE_FDK_BITBUF hBitBuf) 3602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return hBitBuf->BitCnt ; 3622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_Feed(HANDLE_FDK_BITBUF hBitBuf, 3652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *RESTRICT inputBuffer, 3662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT bufferSize, 3672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT *bytesValid) 3682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project inputBuffer = &inputBuffer [bufferSize - *bytesValid] ; 3702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bTotal = 0 ; 3722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bToRead = (hBitBuf->bufBits - hBitBuf->ValidBits) >> 3 ; 3742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT noOfBytes = fMin(bToRead, *bytesValid); //(bToRead < *bytesValid) ? bToRead : *bytesValid ; 3752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project while (noOfBytes > 0) 3772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* split read to buffer size */ 3792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead = hBitBuf->bufSize - hBitBuf->ReadOffset ; 3802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead = fMin(bToRead, noOfBytes); //(bToRead < noOfBytes) ? bToRead : noOfBytes ; 3812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* copy 'bToRead' bytes from 'ptr' to inputbuffer */ 3832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemcpy(&hBitBuf->Buffer[hBitBuf->ReadOffset], inputBuffer, bToRead*sizeof(UCHAR)); 3842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* add noOfBits to number of valid bits in buffer */ 3862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits += bToRead << 3 ; 3872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bTotal += bToRead ; 3882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project inputBuffer += bToRead ; 3892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ReadOffset = (hBitBuf->ReadOffset + bToRead) & (hBitBuf->bufSize - 1) ; 3912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project noOfBytes -= bToRead ; 3922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *bytesValid -= bTotal ; 3952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid CopyAlignedBlock (HANDLE_FDK_BITBUF h_BitBufSrc, UCHAR *RESTRICT dstBuffer, UINT bToRead) 3982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT byteOffset = h_BitBufSrc->BitNdx >> 3 ; 4002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT byteMask = h_BitBufSrc->bufSize - 1 ; 4012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *RESTRICT pBBB = h_BitBufSrc->Buffer; 4032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (UINT i = 0 ; i < bToRead ; i++) 4042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project dstBuffer[i] = pBBB[(byteOffset+i) & byteMask] ; 4062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead <<= 3 ; 4092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufSrc->BitNdx = (h_BitBufSrc->BitNdx + bToRead) & (h_BitBufSrc->bufBits - 1) ; 4112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufSrc->BitCnt += bToRead ; 4122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufSrc->ValidBits -= bToRead ; 4132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_Copy (HANDLE_FDK_BITBUF h_BitBufDst, HANDLE_FDK_BITBUF h_BitBufSrc, UINT *bytesValid) 4162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT bTotal = 0; 4182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* limit noOfBytes to valid bytes in src buffer and available bytes in dst buffer */ 4202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bToRead = h_BitBufSrc->ValidBits >> 3 ; 4212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT noOfBytes = fMin(bToRead, *bytesValid); //(*bytesValid < bToRead) ? *bytesValid : bToRead ; 4222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead = FDK_getFreeBits(h_BitBufDst); 4232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project noOfBytes = fMin(bToRead, noOfBytes); //(bToRead < noOfBytes) ? bToRead : noOfBytes; 4242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project while (noOfBytes > 0) 4262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Split Read to buffer size */ 4282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead = h_BitBufDst->bufSize - h_BitBufDst->ReadOffset ; 4292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToRead = fMin(noOfBytes, bToRead); //(noOfBytes < bToRead) ? noOfBytes : bToRead ; 4302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* copy 'bToRead' bytes from buffer to buffer */ 4322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (!(h_BitBufSrc->BitNdx & 0x07)) { 4332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CopyAlignedBlock (h_BitBufSrc, h_BitBufDst->Buffer + h_BitBufDst->ReadOffset, bToRead) ; 4342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } else { 4352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (UINT i = 0; i < bToRead; i++) 4362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufDst->Buffer [h_BitBufDst->ReadOffset + i] = (UCHAR)FDK_get(h_BitBufSrc,8); 4382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* add noOfBits to number of valid bits in buffer */ 4422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufDst->ValidBits += bToRead << 3 ; 4432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bTotal += bToRead; 4442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project h_BitBufDst->ReadOffset = (h_BitBufDst->ReadOffset + bToRead) & (h_BitBufDst->bufSize-1); 4462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project noOfBytes -= bToRead; 4472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *bytesValid -=bTotal; 4502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid FDK_Fetch (HANDLE_FDK_BITBUF hBitBuf, UCHAR *outBuf, UINT *writeBytes) 4532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *RESTRICT outputBuffer = outBuf; 4552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bTotal = 0 ; 4562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT bToWrite = (hBitBuf->ValidBits) >> 3 ; 4582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT noOfBytes = fMin(bToWrite, *writeBytes); //(bToWrite < *writeBytes) ? bToWrite : *writeBytes ; 4592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project while (noOfBytes > 0) 4612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* split write to buffer size */ 4632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToWrite = hBitBuf->bufSize - hBitBuf->WriteOffset ; 4642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bToWrite = fMin(bToWrite, noOfBytes); //(bToWrite < noOfBytes) ? bToWrite : noOfBytes ; 4652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* copy 'bToWrite' bytes from bitbuffer to outputbuffer */ 4672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemcpy(outputBuffer, &hBitBuf->Buffer[hBitBuf->WriteOffset], bToWrite*sizeof(UCHAR)); 4682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* sub noOfBits from number of valid bits in buffer */ 4702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->ValidBits -= bToWrite << 3 ; 4712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project bTotal += bToWrite ; 4722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project outputBuffer += bToWrite ; 4732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hBitBuf->WriteOffset = (hBitBuf->WriteOffset + bToWrite) & (hBitBuf->bufSize - 1) ; 4752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project noOfBytes -= bToWrite ; 4762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *writeBytes = bTotal ; 4792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 481