libmng_data.h

奇趣公司比较新的qt/emd版本

           mngjpeg_compp     pJPEGcinfo;         /* compression structure */
           mngjpeg_errorp    pJPEGcerr;          /* error-manager compress */

           mngjpeg_decompp   pJPEGdinfo;         /* decompression structure (JDAT) */
           mngjpeg_errorp    pJPEGderr;          /* error-manager decompress (JDAT) */
           mngjpeg_sourcep   pJPEGdsrc;          /* source-manager decompress (JDAT) */

           mngjpeg_decompp   pJPEGdinfo2;        /* decompression structure (JDAA) */
           mngjpeg_errorp    pJPEGderr2;         /* error-manager decompress (JDAA) */
           mngjpeg_sourcep   pJPEGdsrc2;         /* source-manager decompress (JDAA) */

           mng_uint8p        pJPEGbuf;           /* buffer for JPEG (de)compression (JDAT) */
           mng_uint32        iJPEGbufmax;        /* allocated space for buffer (JDAT) */
           mng_uint8p        pJPEGcurrent;       /* current pointer into buffer (JDAT) */
           mng_uint32        iJPEGbufremain;     /* remaining bytes in buffer (JDAT) */
           mng_uint32        iJPEGtoskip;        /* bytes to skip on next input-block (JDAT) */

           mng_uint8p        pJPEGbuf2;          /* buffer for JPEG (de)compression (JDAA) */
           mng_uint32        iJPEGbufmax2;       /* allocated space for buffer (JDAA) */
           mng_uint8p        pJPEGcurrent2;      /* current pointer into buffer (JDAA) */
           mng_uint32        iJPEGbufremain2;    /* remaining bytes in buffer (JDAA) */
           mng_uint32        iJPEGtoskip2;       /* bytes to skip on next input-block (JDAA) */

           mng_uint8p        pJPEGrow;           /* buffer for a JPEG row of samples (JDAT) */
           mng_uint32        iJPEGrowlen;

           mng_uint8p        pJPEGrow2;          /* buffer for a JPEG row of samples (JDAA) */
           mng_uint32        iJPEGrowlen2;

           mng_bool          bJPEGcompress;      /* indicates "compress" initialized */

           mng_bool          bJPEGdecompress;    /* indicates "decompress" initialized (JDAT) */
           mng_bool          bJPEGhasheader;     /* indicates "readheader" succeeded (JDAT) */
           mng_bool          bJPEGdecostarted;   /* indicates "decompress" started (JDAT) */
           mng_bool          bJPEGscanstarted;   /* indicates "first scan" started (JDAT) */
           mng_bool          bJPEGscanending;    /* indicates "finish_output" suspended (JDAT) */
           mng_bool          bJPEGprogressive;   /* indicates a progressive image (JDAT) */

           mng_bool          bJPEGdecompress2;   /* indicates "decompress" initialized (JDAA) */
           mng_bool          bJPEGhasheader2;    /* indicates "readheader" succeeded (JDAA) */
           mng_bool          bJPEGdecostarted2;  /* indicates "decompress" started (JDAA) */
           mng_bool          bJPEGscanstarted2;  /* indicates "first scan" started (JDAA) */
           mng_bool          bJPEGprogressive2;  /* indicates a progressive image (JDAA) */

           mng_fptr          fStorerow2;         /* internal callback to store an
                                                    uncompressed/unfiltered row of JPEG-data (JDAT) */

           mng_fptr          fStorerow3;         /* internal callback to store an
                                                    uncompressed/unfiltered row of JPEG-data (JDAA) */

           mng_uint32        iJPEGrow;           /* row-number for current JPEG row */
           mng_uint32        iJPEGalpharow;      /* nr. of rows filled with alpha */
           mng_uint32        iJPEGrgbrow;        /* nr. of rows filled with 'color'-info */
           mng_uint32        iJPEGdisprow;       /* nr. of rows already displayed "on-the-fly" */

#if defined(MNG_USE_SETJMP) && defined (MNG_INCLUDE_IJG6B)
           jmp_buf           sErrorbuf;          /* setjmp/longjmp buffer (error-recovery) */
#endif

#endif /* MNG_INCLUDE_JNG */

#ifndef MNG_USE_ZLIB_CRC
           mng_uint32        aCRCtable [256];    /* CRC prefab table */
           mng_bool          bCRCcomputed;       /* "has been built" indicator */
#endif

#ifdef MNG_OPTIMIZE_FOOTPRINT_INIT
           png_imgtype       ePng_imgtype;
#endif

#if defined(MNG_NO_1_2_4BIT_SUPPORT) || defined(MNG_NO_16BIT_SUPPORT)
           mng_uint8         iPNGdepth;          /* Real input depth */
           mng_uint8         iPNGmult;
#endif

#ifdef MNG_OPTIMIZE_DISPLAYCALLS
           mng_uint32        iRawlen;            /* temp vars for display processing */
           mng_uint8p        pRawdata;
#ifndef MNG_SKIPCHUNK_BASI
           mng_uint16        iBASIred;
           mng_uint16        iBASIgreen;
           mng_uint16        iBASIblue;
           mng_bool          bBASIhasalpha;
           mng_uint16        iBASIalpha;
           mng_uint8         iBASIviewable;
#endif
#ifndef MNG_SKIPCHUNK_CLON
           mng_uint16        iCLONsourceid;
           mng_uint16        iCLONcloneid;
           mng_uint8         iCLONclonetype;
           mng_bool          bCLONhasdonotshow;
           mng_uint8         iCLONdonotshow;
           mng_uint8         iCLONconcrete;
           mng_bool          bCLONhasloca;
           mng_uint8         iCLONlocationtype;
           mng_int32         iCLONlocationx;
           mng_int32         iCLONlocationy;
#endif
#ifndef MNG_SKIPCHUNK_DISC
           mng_uint32        iDISCcount;
           mng_uint16p       pDISCids;
#endif
#ifndef MNG_SKIPCHUNK_FRAM
           mng_uint8         iTempFramemode;
           mng_uint8         iTempChangedelay;
           mng_uint32        iTempDelay;
           mng_uint8         iTempChangetimeout;
           mng_uint32        iTempTimeout;
           mng_uint8         iTempChangeclipping;
           mng_uint8         iTempCliptype;
           mng_int32         iTempClipl;
           mng_int32         iTempClipr;
           mng_int32         iTempClipt;
           mng_int32         iTempClipb;
#endif
#ifndef MNG_SKIPCHUNK_MOVE
           mng_uint16        iMOVEfromid;
           mng_uint16        iMOVEtoid;
           mng_uint8         iMOVEmovetype;
           mng_int32         iMOVEmovex;
           mng_int32         iMOVEmovey;
#endif
#ifndef MNG_SKIPCHUNK_CLIP
           mng_uint16        iCLIPfromid;
           mng_uint16        iCLIPtoid;
           mng_uint8         iCLIPcliptype;
           mng_int32         iCLIPclipl;
           mng_int32         iCLIPclipr;
           mng_int32         iCLIPclipt;
           mng_int32         iCLIPclipb;
#endif
#ifndef MNG_NO_DELTA_PNG
           mng_uint16        iDHDRobjectid;
           mng_uint8         iDHDRimagetype;
           mng_uint8         iDHDRdeltatype;
           mng_uint32        iDHDRblockwidth;
           mng_uint32        iDHDRblockheight;
           mng_uint32        iDHDRblockx;
           mng_uint32        iDHDRblocky;
           mng_uint8         iPROMbitdepth;
           mng_uint8         iPROMcolortype;
           mng_uint8         iPROMfilltype;
           mng_uint8         iPPLTtype;
           mng_uint32        iPPLTcount;
           mng_palette8ep    paPPLTindexentries;
           mng_uint8p        paPPLTalphaentries;
           mng_uint8p        paPPLTusedentries;
#endif
#ifndef MNG_SKIPCHUNK_MAGN
           mng_uint16        iMAGNfirstid;
           mng_uint16        iMAGNlastid;
           mng_uint8         iMAGNmethodX;
           mng_uint16        iMAGNmX;
           mng_uint16        iMAGNmY;
           mng_uint16        iMAGNmL;
           mng_uint16        iMAGNmR;
           mng_uint16        iMAGNmT;
           mng_uint16        iMAGNmB;
           mng_uint8         iMAGNmethodY;
#endif
#ifndef MNG_SKIPCHUNK_PAST
           mng_uint16        iPASTtargetid;
           mng_uint8         iPASTtargettype;
           mng_int32         iPASTtargetx;
           mng_int32         iPASTtargety;
           mng_uint32        iPASTcount;
           mng_ptr           pPASTsources;
#endif
#endif /* MNG_OPTIMIZE_DISPLAYCALLS */

        } mng_data;

typedef mng_data * mng_datap;

/* ************************************************************************** */
/* *                                                                        * */
/* * Internal Callback-Function prototypes                                  * */
/* *                                                                        * */
/* ************************************************************************** */

typedef mng_retcode(*mng_displayrow)  (mng_datap  pData);
typedef mng_retcode(*mng_restbkgdrow) (mng_datap  pData);
typedef mng_retcode(*mng_correctrow)  (mng_datap  pData);
typedef mng_retcode(*mng_retrieverow) (mng_datap  pData);
typedef mng_retcode(*mng_storerow)    (mng_datap  pData);
typedef mng_retcode(*mng_processrow)  (mng_datap  pData);
typedef mng_retcode(*mng_initrowproc) (mng_datap  pData);
typedef mng_retcode(*mng_differrow)   (mng_datap  pData);
typedef mng_retcode(*mng_scalerow)    (mng_datap  pData);
typedef mng_retcode(*mng_deltarow)    (mng_datap  pData);
typedef mng_retcode(*mng_promoterow)  (mng_datap  pData);
typedef mng_retcode(*mng_fliprow)     (mng_datap  pData);
typedef mng_retcode(*mng_tilerow)     (mng_datap  pData);

typedef mng_uint8  (*mng_bitdepth_8)  (mng_uint8  iB);
typedef mng_uint16 (*mng_bitdepth_16) (mng_uint8  iB);

typedef mng_retcode(*mng_magnify_x)   (mng_datap  pData,
                                       mng_uint16 iMX,
                                       mng_uint16 iML,
                                       mng_uint16 iMR,
                                       mng_uint32 iWidth,
                                       mng_uint8p iSrcline,
                                       mng_uint8p iDstline);
typedef mng_retcode(*mng_magnify_y)   (mng_datap  pData,
                                       mng_int32  iM,
                                       mng_int32  iS,
                                       mng_uint32 iWidth,
                                       mng_uint8p iSrcline1,
                                       mng_uint8p iSrcline2,
                                       mng_uint8p iDstline);

/* ************************************************************************** */
/* *                                                                        * */
/* * Routines for swapping byte-order from and to graphic files             * */
/* * (This code is adapted from the libpng package)                         * */
/* *                                                                        * */
/* ************************************************************************** */

#ifndef MNG_BIGENDIAN_SUPPORTED
mng_uint32 mng_get_uint32 (mng_uint8p pBuf);
mng_int32  mng_get_int32  (mng_uint8p pBuf);
mng_uint16 mng_get_uint16 (mng_uint8p pBuf);
void       mng_put_uint32 (mng_uint8p pBuf,
                           mng_uint32 i);
void       mng_put_int32  (mng_uint8p pBuf,
                           mng_int32  i);
void       mng_put_uint16 (mng_uint8p pBuf,
                           mng_uint16 i);
#else /* MNG_BIGENDIAN_SUPPORTED */
#define mng_get_uint32(P)   *(mng_uint32p)(P)
#define mng_get_int32(P)    *(mng_int32p)(P)
#define mng_get_uint16(P)   *(mng_uint16p)(P)
#define mng_put_uint32(P,I) *(mng_uint32p)(P) = (I)
#define mng_put_int32(P,I)  *(mng_int32p)(P) = (I)
#define mng_put_uint16(P,I) *(mng_uint16p)(P) = (I)
#endif /* MNG_BIGENDIAN_SUPPORTED */

/* ************************************************************************** */
/* *                                                                        * */
/* * Some handy(?) macro definitions                                        * */
/* *                                                                        * */
/* ************************************************************************** */

#define MAX_COORD(a, b)  (((a) > (b)) ? (a) : (b))
#define MIN_COORD(a, b)  (((a) < (b)) ? (a) : (b))

/* ************************************************************************** */

#endif /* _libmng_data_h_ */

/* ************************************************************************** */
/* * end of file                                                            * */
/* ************************************************************************** */