jxrlib: Add library sources

2026-01-10 16:38:00 +01:00 · 2020-09-11 20:56:27 +02:00 · 2020-09-11 20:56:27 +02:00 · d9d777072a
commit d9d777072a
parent 9a746c257e
63 changed files with 37177 additions and 0 deletions
--- a/jxrlib/image/sys/strcodec.h
+++ b/jxrlib/image/sys/strcodec.h
@ -0,0 +1,678 @@
+//*@@@+++@@@@******************************************************************
+//
+// Copyright © Microsoft Corp.
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// 
+// • Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// • Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//*@@@---@@@@******************************************************************
+#pragma once
+
+#include <stddef.h>
+
+#include "windowsmediaphoto.h"
+#include "common.h"
+// #include "xplatform_image.h"
+
+// added for Xcode PK universal binary
+#ifdef __ppc__
+#define _BIG__ENDIAN_
+#endif
+
+//================================================================
+#ifdef ENABLE_OPTIMIZATIONS
+#if defined(WIN32) && !defined(_WIN64)
+#define WMP_OPT_SSE2
+
+#define WMP_OPT_CC_ENC
+//#define WMP_OPT_TRFM_ENC
+//#define WMP_OPT_QT
+
+#define WMP_OPT_CC_DEC
+#define WMP_OPT_TRFM_DEC
+
+#define X86OPT_INLINE
+
+#endif
+#endif // ENABLE_OPTIMIZATIONS
+
+//================================================================
+//#ifdef WIN32
+#if defined(WIN32) && !defined(UNDER_CE)   // WIN32 seems to be defined always in VS2005 for ARM platform
+#define PLATFORM_X86
+#include "..\x86\x86.h"
+#endif
+
+#ifndef UNREFERENCED_PARAMETER
+#define UNREFERENCED_PARAMETER(P) { (P) = (P); }
+#endif UNREFERENCED_PARAMETER
+
+#ifdef UNDER_CE
+#define PLATFORM_WCE
+#include "arm.h"
+#endif
+
+#ifdef __ANSI__
+#define PLATFORM_ANSI
+#include "ansi.h"
+#endif
+
+//================================================================
+
+#ifdef PLATFORM_ANSI
+typedef unsigned long long U64;
+#else // PLATFORM_ANSI
+typedef unsigned __int64 U64;
+#endif // PLATFORM_ANSI
+
+//================================================================
+#define MARKERCOUNT (PACKETLENGTH * 2)
+
+// The following macros depend on UINTPTR_T and INTPTR_T being properly defined
+// so that they are equal to pointer width. Confirm and fail if our assumptions are wrong.
+CT_ASSERT(sizeof(UINTPTR_T) == sizeof(void*), strcodec1);
+CT_ASSERT(sizeof(INTPTR_T) == sizeof(void*), strcodec2);
+
+// wrap around pointer, s=pow(2,n), p wraps aligned to s
+#define WRAPPTR(p, s) ((void*)((UINTPTR_T)(p) & ~(UINTPTR_T)(s)))
+
+// mask certain bit inside a pointer, simulate wrap around
+#define MASKPTR(p, m) ((void*)((UINTPTR_T)(p) & (INTPTR_T)(m)))
+
+// test for more than 1 packet data
+#define PACKET1(ps, pc, s) (((INTPTR_T)(ps) ^ (INTPTR_T)(pc)) & ((UINTPTR_T)(s)))
+
+// alternate pointer p between 2 values aligned to s, s=pow(2,n)
+//#define ALTPTR(p, s) ((void*)((uintptr_t)(p) ^ (s)))
+
+// align point, s=pow(2,n), p aligns to s
+#define ALIGNUP(p, s) ((void*)(((UINTPTR_T)(p) + ((UINTPTR_T)(s) - 1)) & ~((UINTPTR_T)(s) - 1)))
+#define ALIGNDOWN(p, s) ((void*)((UINTPTR_T)(p) & ~((UINTPTR_T)(s) - 1)))
+
+//================================================================
+// timer support
+//================================================================
+
+#define TraceResult(a)
+
+//================================================================
+typedef enum tagPacketType
+{
+    PK_NULL = 0,
+    PK_DC = 1, PK_AD, PK_AC, PK_CP,
+    PK_MAX,
+} PACKETTYPE;
+
+typedef struct tagIOContext
+{
+    U8 P0[PACKETLENGTH];        // packet circular buffer 0
+    U8 P1[PACKETLENGTH];        // packet circular buffer 1
+
+    union
+    {
+        U8 P2[PACKETLENGTH];
+        struct
+        {
+            U32 uiShadow;   // shadow of P0[0]-P0[3]
+
+            U32 uiAccumulator;  // 32bit acc as bit field cache
+            U32 cBitsUsed;  // # of bits used of acc, [0,16)
+
+            U8* pbPacket;   // packet pointer
+            U8* pbCurrent;  // current pointer
+
+            struct WMPStream* pWS;    // pointer to WMPStream
+            long offPacket; // byte offset into stream
+
+            //ULARGE_INTEGER u64Acc; 
+
+    //========================================
+    // index packet, used for packet retrieval
+    //========================================
+            U32 cIndex; // current index for index packet
+            long offIndex;  // byte offset into stream for index packet
+        }State;
+    }P2Info;
+    U8 P3[PACKETLENGTH];    // index packet buffer
+} IOContext;
+
+typedef struct tagMemReadState
+{    
+    U8* pbBuf;
+    size_t cbBuf;
+    size_t cbCur;
+} MemReadState;
+
+typedef struct tagBitIOInfo
+{
+    U32 uiShadow;   // shadow of first 4B of circular buffer
+
+    U32 uiAccumulator;  // 32bit acc as bit field cache
+    U32 cBitsUsed;  // # of bits used of acc, [0,16)
+#ifdef ARMOPT_BITIO
+    U32 cBitsUnused;  // # of bits remain unused in acc, [0,32]
+#endif
+
+    I32 iMask;  // mask used simulate pointer wrap around
+
+    U8* pbStart;    // start pointer
+#ifndef ARMOPT_BITIO
+    U8* pbCurrent;  // current pointer
+#else
+    U32* pbCurrent;  // current pointer
+#endif
+
+    struct WMPStream* pWS;  // pointer to WMPStream
+    size_t offRef;  // reference offset on IStream,
+                            // for read, it moves along the stream
+                            // for write, it stays at the attach point
+} BitIOInfo;
+
+//================================================================
+typedef struct tagCWMIQuantizer {
+    U8 iIndex;
+    I32 iQP;
+    I32 iOffset;
+    I32 iMan;
+    I32 iExp;
+#if defined(WMP_OPT_QT)
+    float f1_QP;
+    double d1_QP;
+#endif    
+} CWMIQuantizer;
+
+/* temporary bridge between old APIs and streaming APIs */
+typedef struct tagCWMIMBInfo {
+    I32 iBlockDC[MAX_CHANNELS][16];
+    I32 iOrientation;
+    Int iCBP[MAX_CHANNELS];
+    Int iDiffCBP[MAX_CHANNELS];
+    U8 iQIndexLP; // 0 - 15
+    U8 iQIndexHP; // 0 - 15
+} CWMIMBInfo;
+
+struct CWMImageStrCodec;
+
+typedef Int (*ImageDataProc)(struct CWMImageStrCodec*);
+
+/** scan model **/
+typedef struct CAdaptiveScan {
+    U32		uTotal;
+    U32		uScan;
+} CAdaptiveScan;
+
+/** Adaptive context model **/
+typedef struct CCodingContext {
+    BitIOInfo * m_pIODC;
+    BitIOInfo * m_pIOLP;
+    BitIOInfo * m_pIOAC;
+    BitIOInfo * m_pIOFL;
+
+    /** adaptive huffman structs **/
+    CAdaptiveHuffman *m_pAdaptHuffCBPCY;
+    CAdaptiveHuffman *m_pAdaptHuffCBPCY1;
+    CAdaptiveHuffman *m_pAHexpt[NUMVLCTABLES];
+
+    /** 4x4 zigzag patterns */
+    CAdaptiveScan m_aScanLowpass[16];
+    CAdaptiveScan m_aScanHoriz[16];
+    CAdaptiveScan m_aScanVert[16];
+
+    /** Adaptive bit reduction model **/
+    CAdaptiveModel m_aModelAC;
+    CAdaptiveModel m_aModelLP;
+    CAdaptiveModel m_aModelDC;
+
+    /** Adaptive lowpass CBP model **/
+    Int     m_iCBPCountZero;
+    Int     m_iCBPCountMax;
+
+    /** Adaptive AC CBP model **/
+    CCBPModel m_aCBPModel;
+
+    /** Trim flex bits - externally set **/
+    Int     m_iTrimFlexBits;
+
+    Bool m_bInROI;  // inside ROI (for region decode and compressed domain cropping)?
+} CCodingContext;
+
+// Following stuff used to be in strPredQuant.h
+/* circulant buffer for 2 MB rows: current row and previous row */
+typedef struct tagCWMIPredInfo {
+    Int iQPIndex;     // QP Index
+    Int iCBP;      // coded block pattern
+    PixelI iDC;    // DC of MB
+    PixelI iAD[6];
+    PixelI * piAD; // AC of DC block: [2] 420UV [4] 422UV [6] elsewhere
+}CWMIPredInfo;
+
+// the following is used on decode side while reading image info
+typedef struct CWMImageStrCodecParameters {
+    size_t cVersion;
+    size_t cSubVersion;
+    COLORFORMAT cfColorFormat; // color format
+    Bool bRBSwapped; // blue and red shall be swapped in BGR555,565,101010
+    Bool bAlphaChannel; // alpha channel present
+    Bool bScaledArith; // lossless mode
+    Bool bIndexTable; // index table present
+    Bool bTrimFlexbitsFlag; // trimmed flexbits indicated in packet header
+    Bool bUseHardTileBoundaries; //default is soft tile boundaries
+    size_t cNumChannels;
+    size_t cExtraPixelsTop;
+    size_t cExtraPixelsLeft;
+    size_t cExtraPixelsBottom;
+    size_t cExtraPixelsRight;
+    Bool bTranscode;  // transcoding flag
+    U32 uQPMode;       // 0/1: no dquant/with dquant, first bit for DC, second bit for LP, third bit for HP
+    U8 uiQPIndexDC[MAX_CHANNELS];
+    U8 uiQPIndexLP[MAX_CHANNELS];
+    U8 uiQPIndexHP[MAX_CHANNELS];
+}CCoreParameters;
+
+typedef struct CWMITile
+{
+    CWMIQuantizer * pQuantizerDC[MAX_CHANNELS];
+    CWMIQuantizer * pQuantizerLP[MAX_CHANNELS];
+    CWMIQuantizer * pQuantizerHP[MAX_CHANNELS];
+    U8 cNumQPLP;
+    U8 cNumQPHP;
+    U8 cBitsLP;
+    U8 cBitsHP;
+
+    Bool bUseDC;
+    Bool bUseLP;
+    U8 cChModeDC;
+    U8 cChModeLP[16];
+    U8 cChModeHP[16];
+} CWMITile;
+
+#ifdef ARMOPT_COLORCONVERSION_C
+#include "ARM_InvColorConversion.h"
+#endif
+
+struct tagPostProcInfo{
+    Int iMBDC;                  // DC of MB
+    U8 ucMBTexture;             // MB texture   : 0(flat) 1(horizontal) 2(vertical) 3(bumpy)
+    Int iBlockDC[4][4];         // DC of block
+    U8 ucBlockTexture[4][4];    // block texture: 0(flat) 1(horizontal) 2(vertical) 3(bumpy)
+};
+
+typedef struct CWMImageStrCodec {
+#ifdef ARMOPT_COLORCONVERSION_C
+    CWMImageStrInvCCParam InvCCParam;
+#endif
+
+    size_t cbStruct;
+
+    CWMImageInfo WMII;
+    CWMIStrCodecParam WMISCP;
+    CWMImageBufferInfo WMIBI;
+    CWMIMBInfo MBInfo;
+
+    /** core parameters **/
+    CCoreParameters m_param;
+
+    struct CWMDecoderParameters *m_Dparam;  // this is specified thru pointer because the same set of parameters may be used by multiple image planes
+
+    U8 cSB;
+
+    Bool m_bUVResolutionChange;
+
+    Bool bTileExtraction;
+
+    BitIOInfo * pIOHeader;
+
+    Bool bUseHardTileBoundaries; //default is soft tile boundaries
+
+    PixelI * pInterU;
+    PixelI * pInterV;
+
+    //============== tile related info begins here ===========
+    // index table
+    size_t *pIndexTable;
+  
+    // current tile position
+    size_t cTileRow;
+    size_t cTileColumn;
+
+    // tile boundary
+    Bool m_bCtxLeft;
+    Bool m_bCtxTop;
+
+    Bool m_bResetRGITotals;
+    Bool m_bResetContext;
+
+    CWMITile * pTile;
+    
+    // BitIOs
+    BitIOInfo ** m_ppBitIO;
+    size_t cNumBitIO;
+    size_t cHeaderSize;
+
+    // coding contexts
+    struct CCodingContext *m_pCodingContext;
+    size_t cNumCodingContext;
+
+    //============== tile related info ends here  ===========
+
+    size_t cNumOfQPIndex;        // number of QP indexes
+    U8 cBitsDQUANT;              // number of bits to encode DQUANT
+
+    size_t cRow;        // row for current macro block
+    size_t cColumn;     // column for current macro block
+
+    size_t cmbWidth;    // macro block/image width
+    size_t cmbHeight;   // macro block/image height
+
+    size_t cbChannel;   // byte/channel
+
+    size_t mbX, mbY;
+    size_t tileX, tileY;
+    Bool bVertTileBoundary, bHoriTileBoundary;
+    Bool bOneMBLeftVertTB, bOneMBRightVertTB; //Macroblock to the left and to the right of tile boundaries
+
+    PixelI iPredBefore[2][2];
+    PixelI iPredAfter[2][2];
+
+    //================================
+    // input data into
+    // macro block 3 of 2x2 working widow
+    //================================
+    ImageDataProc Load;
+    //ImageDataProc Load2;
+    ImageDataProc Transform;
+    ImageDataProc TransformCenter;
+
+    //================================
+    ImageDataProc Quantize;
+    //ImageDataProc QuantizeLuma;
+    //ImageDataProc QuantizeChroma;
+
+    //================================
+    // process and store data from
+    // macro block 0 of 2x2 working window
+    //================================
+    ImageDataProc ProcessTopLeft;
+    ImageDataProc ProcessTop;
+    ImageDataProc ProcessTopRight;
+    ImageDataProc ProcessLeft;
+    ImageDataProc ProcessCenter;
+    ImageDataProc ProcessRight;
+    ImageDataProc ProcessBottomLeft;
+    ImageDataProc ProcessBottom;
+    ImageDataProc ProcessBottomRight;
+    
+
+    //================================
+    // 2 MB working window for encoder
+    //================================
+    PixelI *pPlane[MAX_CHANNELS];
+
+    //================================
+    // 2 rows of MB buffer
+    //================================
+    PixelI *a0MBbuffer[MAX_CHANNELS];  // pointer to start of previous MB row
+    PixelI *a1MBbuffer[MAX_CHANNELS];  // pointer to start of current MB row
+    PixelI *p0MBbuffer[MAX_CHANNELS];  // working pointer to start of previous row MB
+    PixelI *p1MBbuffer[MAX_CHANNELS];  // working pointer to start of current row MB
+
+    //================================
+    // downsampling buffer for UV
+    //================================
+    PixelI * pResU;
+    PixelI * pResV;
+
+    //================================
+    // circular buffer for 2 MB rows: current row and previous row
+    //================================
+    CWMIPredInfo *PredInfo[MAX_CHANNELS];
+    CWMIPredInfo *PredInfoPrevRow[MAX_CHANNELS];
+    CWMIPredInfo *pPredInfoMemory;
+
+    struct WMPStream ** ppWStream;
+
+#ifdef WIN32
+    TCHAR **ppTempFile;
+#else
+    char **ppTempFile;
+#endif
+
+    // interleaved alpha support - linked structure for Alpha channel
+    struct CWMImageStrCodec *m_pNextSC;
+    Bool   m_bSecondary;
+
+    //================================
+    // Perf Timers
+    //================================
+#ifndef DISABLE_PERF_MEASUREMENT
+    Bool            m_fMeasurePerf;
+    struct PERFTIMERSTATE *m_ptEndToEndPerf;   // Measures from Init to Term, including I/O
+    struct PERFTIMERSTATE *m_ptEncDecPerf;     // Measures time spent in ImageStrEncEncode/ImageStrDecDecode, excluding I/O
+#endif // DISABLE_PERF_MEASUREMENT
+
+    // postproc information for 2 MB rows: 0(previous row) 1(current row)
+    struct tagPostProcInfo * pPostProcInfo[MAX_CHANNELS][2];
+} CWMImageStrCodec;
+
+
+//================================================================
+ERR WMPAlloc(void** ppv, size_t cb);
+ERR WMPFree(void** ppv);
+
+//================================================================
+Void initMRPtr(CWMImageStrCodec*);
+Void advanceMRPtr(CWMImageStrCodec*);
+Void swapMRPtr(CWMImageStrCodec*);
+
+Int IDPEmpty(CWMImageStrCodec*);
+
+//================================================================
+extern const int dctIndex[3][16];
+extern const int blkOffset[16];
+extern const int blkOffsetUV[4];
+extern const int blkOffsetUV_422[8];
+
+extern const U8 idxCC[16][16];
+extern const U8 idxCC_420[8][8];
+
+extern const Char gGDISignature[];
+
+//================================================================
+Int allocatePredInfo(CWMImageStrCodec*);
+Void freePredInfo(CWMImageStrCodec*);
+Void advanceOneMBRow(CWMImageStrCodec*);
+
+//================================================================
+// bit I/O
+//================================================================
+Int allocateBitIOInfo(CWMImageStrCodec*);
+Int setBitIOPointers(CWMImageStrCodec* pSC);
+
+#ifndef ARMOPT_BITIO
+U32 peekBit16(BitIOInfo* pIO, U32 cBits);
+U32 flushBit16(BitIOInfo* pIO, U32 cBits);
+U32 getBit16(BitIOInfo* pIO, U32 cBits);
+U32 getBool16(BitIOInfo* pIO);
+I32 getBit16s(BitIOInfo* pIO, U32 cBits);
+U32 getBit32(BitIOInfo* pIO, U32 cBits);
+U32 flushToByte(BitIOInfo* pIO);
+#endif  // ARMOPT_BITIO
+
+Void putBit16z(BitIOInfo* pIO, U32 uiBits, U32 cBits);
+Void putBit16(BitIOInfo* pIO, U32 uiBits, U32 cBits);
+Void putBit32(BitIOInfo* pIO, U32 uiBits, U32 cBits);
+Void fillToByte(BitIOInfo* pIO);
+
+U32 getSizeRead(BitIOInfo* pIO);
+U32 getSizeWrite(BitIOInfo* pIO);
+
+U32 getPosRead(BitIOInfo* pIO);
+
+// safe function, solely for the convenience of test code
+#ifndef ARMOPT_BITIO
+U32 getBit16_S(CWMImageStrCodec* pSC, BitIOInfo* pIO, U32 cBits);
+#endif  // ARMOPT_BITIO
+
+//================================================================
+// packet I/O
+//================================================================
+ERR attachISRead(BitIOInfo* pIO, struct WMPStream* pWS, CWMImageStrCodec* pSC);
+ERR readIS(CWMImageStrCodec* pSC, BitIOInfo* pIO);
+ERR detachISRead(CWMImageStrCodec* pSC, BitIOInfo* pIO);
+
+ERR attachISWrite(BitIOInfo* pIO, struct WMPStream* pWS);
+ERR writeIS(CWMImageStrCodec* pSC, BitIOInfo* pIO);
+ERR detachISWrite(CWMImageStrCodec* pSC, BitIOInfo* pIO);
+
+
+//================================================================
+// post processing for decoder
+//================================================================
+Int initPostProc(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], size_t mbWidth, size_t iNumChannels);
+Void termPostProc(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], size_t iNumChannels);
+Void slideOneMBRow(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], size_t iNumChannels, size_t mbWidth, Bool top, Bool bottom);
+Void updatePostProcInfo(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], PixelI * p, size_t mbX, size_t cc);
+Void postProcMB(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], PixelI * p0, PixelI * p1, size_t mbX, size_t cc, Int threshold);
+Void postProcBlock(struct tagPostProcInfo * strPostProcInfo[MAX_CHANNELS][2], PixelI * p0, PixelI * p1, size_t mbX, size_t cc, Int threshold);
+
+//================================================================
+// Simple BitIO access functions
+//================================================================
+typedef struct tagSimpleBitIO
+{
+    struct WMPStream* pWS;
+    U32 cbRead;
+    U8 bAccumulator;
+    U32 cBitLeft;
+} SimpleBitIO;
+
+ERR attach_SB(SimpleBitIO* pSB, struct WMPStream* pWS);
+U32 getBit32_SB(SimpleBitIO* pSB, U32 cBits);
+Void flushToByte_SB(SimpleBitIO* pSB);
+U32 getByteRead_SB(SimpleBitIO* pSB);
+ERR detach_SB(SimpleBitIO* pSB);
+
+//----------------------------------------------------------------
+EXTERN_C Bool EOSWS_File(struct WMPStream* pWS);
+
+EXTERN_C ERR ReadWS_File(struct WMPStream* pWS, void* pv, size_t cb);
+EXTERN_C ERR WriteWS_File(struct WMPStream* pWS, const void* pv, size_t cb);
+//EXTERN_C ERR GetLineWS_File(struct WMPStream* pWS, void* pv, size_t cb);
+
+EXTERN_C ERR SetPosWS_File(struct WMPStream* pWS, size_t offPos);
+EXTERN_C ERR GetPosWS_File(struct WMPStream* pWS, size_t* poffPos);
+
+//----------------------------------------------------------------
+EXTERN_C Bool EOSWS_Memory(struct WMPStream* pWS);
+
+EXTERN_C ERR ReadWS_Memory(struct WMPStream* pWS, void* pv, size_t cb);
+EXTERN_C ERR WriteWS_Memory(struct WMPStream* pWS, const void* pv, size_t cb);
+//EXTERN_C ERR GetLineWS_Memory(struct WMPStream* pWS, void* pv, size_t cb);
+
+EXTERN_C ERR SetPosWS_Memory(struct WMPStream* pWS, size_t offPos);
+EXTERN_C ERR GetPosWS_Memory(struct WMPStream* pWS, size_t* poffPos);
+
+//EXTERN_C ERR GetPtrWS_Memory(struct WMPStream* pWS, size_t align, U8** ppb);
+//----------------------------------------------------------------
+EXTERN_C Bool EOSWS_List(struct WMPStream* pWS);
+
+EXTERN_C ERR ReadWS_List(struct WMPStream* pWS, void* pv, size_t cb);
+EXTERN_C ERR WriteWS_List(struct WMPStream* pWS, const void* pv, size_t cb);
+
+EXTERN_C ERR SetPosWS_List(struct WMPStream* pWS, size_t offPos);
+EXTERN_C ERR GetPosWS_List(struct WMPStream* pWS, size_t* poffPos);
+
+EXTERN_C ERR CreateWS_List(struct WMPStream** ppWS);
+EXTERN_C ERR CloseWS_List(struct WMPStream** ppWS);
+
+/********************************************************************/
+// Stuff related to scale/spatial ordering
+typedef struct PacketInfo
+{
+    BAND    m_iBand;
+    size_t  m_iSize;
+    size_t  m_iOffset;
+    struct PacketInfo *m_pNext;
+} PacketInfo;
+/********************************************************************/
+
+/********************************************************************/
+const static Int blkIdxByRow[4][4] = {{0, 1, 4, 5}, {2, 3, 6, 7}, {8, 9, 12, 13}, {10, 11, 14, 15}};
+const static Int blkIdxByColumn[4][4] = {{0, 2, 8, 10}, {1, 3, 9, 11},{4, 6, 12, 14},{5, 7, 13, 15}};
+
+Int getACPredMode(CWMIMBInfo *, COLORFORMAT);
+Int getDCACPredMode(CWMImageStrCodec *, size_t);
+Void updatePredInfo(CWMImageStrCodec* pSC, CWMIMBInfo *, size_t, COLORFORMAT);
+
+Int AllocateCodingContextDec(struct CWMImageStrCodec *pSC, Int iNumContexts);
+Void ResetCodingContext(CCodingContext *pContext);
+Void getTilePos(CWMImageStrCodec* pSC, size_t mbX, size_t mbY);
+Void InitZigzagScan(CCodingContext * pSC);
+Int checkImageBuffer(CWMImageStrCodec *, size_t, size_t);
+
+//U32 log2(U32);
+
+//DQUANT stuff
+EXTERN_C Void remapQP(CWMIQuantizer *, I32, Bool);
+Int allocateTileInfo(CWMImageStrCodec *);
+Void freeTileInfo(CWMImageStrCodec *);
+Int allocateQuantizer(CWMIQuantizer * pQuantizer[MAX_CHANNELS], size_t, size_t);
+Void freeQuantizer(CWMIQuantizer * pQuantizer[MAX_CHANNELS]);
+Void setUniformQuantizer(CWMImageStrCodec *, size_t);
+Void useDCQuantizer(CWMImageStrCodec *, size_t);
+Void useLPQuantizer(CWMImageStrCodec *, size_t, size_t);
+Void formatQuantizer(CWMIQuantizer * pQuantizer[MAX_CHANNELS], U8, size_t, size_t, Bool, Bool);
+U8 dquantBits(U8);
+
+#ifdef ARMOPT_BITIO
+#define peekBit16   peekBits
+#define flushBit16  flushBits
+#define getBit16    getBits
+#define getBit32    getBits
+#define getBit16s   getBitsS
+#define getBool16(pIO) getBits(pIO, 1)   
+
+U32 peekBits(BitIOInfo* pIO, U32 cBits);
+void flushBits(BitIOInfo* pIO, U32 cBits);
+U32 getBits(BitIOInfo* pIO, U32 cBits);
+U32 getBitsS(BitIOInfo* pIO, U32 cBits);
+void flushToByte(BitIOInfo* pIO);
+#endif // ARMOPT_BITIO
+
+/*************************************************************************
+    Bitio defines
+*************************************************************************/
+#define PEEKBIT16(pIO, cBits) \
+    assert(0 <= (I32)cBits && cBits <= 16);\
+    return (pIO->uiAccumulator >> (32 - cBits/* - pIO->cBitsUsed*/));
+
+#define FLUSHBIT16(pIO, cBits) \
+    assert(0 <= (I32)cBits && cBits <= 16);\
+    assert((pIO->iMask & 1) == 0);\
+    pIO->cBitsUsed += cBits;\
+    pIO->pbCurrent = MASKPTR(pIO->pbCurrent + ((pIO->cBitsUsed >> 3)/* & 2*/), pIO->iMask);\
+    pIO->cBitsUsed &= 16 - 1;\
+    pIO->uiAccumulator = LOAD16(pIO->pbCurrent) << pIO->cBitsUsed;\
+    return 0;
+//    pIO->uiAccumulator = LOAD16(pIO->pbCurrent) & ((U32)(-1) >> pIO->cBitsUsed);\
+
+void OutputPerfTimerReport(CWMImageStrCodec *pState);