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src/Source/LibJXR/image/sys/strcodec.h  view on Meta::CPAN

#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]