cups/raster-private.h

   1 /*
   2  * Private image library definitions for CUPS.
   3  *
   4  * Copyright © 2007-2019 by Apple Inc.
   5  * Copyright © 1993-2006 by Easy Software Products.
   6  *
   7  * Licensed under Apache License v2.0.  See the file "LICENSE" for more
   8  * information.
   9  */
  10
  11 #ifndef _CUPS_RASTER_PRIVATE_H_
  12 #  define _CUPS_RASTER_PRIVATE_H_
  13
  14 /*
  15  * Include necessary headers...
  16  */
  17
  18 #  include "raster.h"
  19 #  include <cups/cups.h>
  20 #  include <cups/debug-private.h>
  21 #  include <cups/string-private.h>
  22 #  ifdef _WIN32
  23 #    include <io.h>
  24 #    include <winsock2.h>               /* for htonl() definition */
  25 #  else
  26 #    include <unistd.h>
  27 #    include <fcntl.h>
  28 #  endif /* _WIN32 */
  29
  30 #  ifdef __cplusplus
  31 extern "C" {
  32 #  endif /* __cplusplus */
  33
  34
  35 /*
  36  * Structure...
  37  */
  38
  39 struct _cups_raster_s                   /**** Raster stream data ****/
  40 {
  41   unsigned              sync;           /* Sync word from start of stream */
  42   void                  *ctx;           /* File descriptor */
  43   cups_raster_iocb_t    iocb;           /* IO callback */
  44   cups_mode_t           mode;           /* Read/write mode */
  45   cups_page_header2_t   header;         /* Raster header for current page */
  46   unsigned              rowheight,      /* Row height in lines */
  47                         count,          /* Current row run-length count */
  48                         remaining,      /* Remaining rows in page image */
  49                         bpp;            /* Bytes per pixel/color */
  50   unsigned char         *pixels,        /* Pixels for current row */
  51                         *pend,          /* End of pixel buffer */
  52                         *pcurrent;      /* Current byte in pixel buffer */
  53   int                   compressed,     /* Non-zero if data is compressed */
  54                         swapped;        /* Non-zero if data is byte-swapped */
  55   unsigned char         *buffer,        /* Read/write buffer */
  56                         *bufptr,        /* Current (read) position in buffer */
  57                         *bufend;        /* End of current (read) buffer */
  58   size_t                bufsize;        /* Buffer size */
  59 #  ifdef DEBUG
  60   size_t                iostart,        /* Start of read/write buffer */
  61                         iocount;        /* Number of bytes read/written */
  62 #  endif /* DEBUG */
  63   unsigned              apple_page_count;/* Apple raster page count */
  64 };
  65
  66
  67 #if 0
  68 /*
  69  * min/max macros...
  70  */
  71
  72 #  ifndef max
  73 #    define     max(a,b)        ((a) > (b) ? (a) : (b))
  74 #  endif /* !max */
  75 #  ifndef min
  76 #    define     min(a,b)        ((a) < (b) ? (a) : (b))
  77 #  endif /* !min */
  78 #endif // 0
  79
  80
  81 /*
  82  * Prototypes...
  83  */
  84
  85 extern void             _cupsRasterAddError(const char *f, ...) _CUPS_FORMAT(1,2) _CUPS_PRIVATE;
  86 extern void             _cupsRasterClearError(void) _CUPS_PRIVATE;
  87 extern const char       *_cupsRasterColorSpaceString(cups_cspace_t cspace) _CUPS_PRIVATE;
  88 extern void             _cupsRasterDelete(cups_raster_t *r) _CUPS_PRIVATE;
  89 extern const char       *_cupsRasterErrorString(void) _CUPS_PRIVATE;
  90 extern int              _cupsRasterInitPWGHeader(cups_page_header2_t *h, pwg_media_t *media, const char *type, int xdpi, int ydpi, const char *sides, const char *sheet_back) _CUPS_PRIVATE;
  91 extern cups_raster_t    *_cupsRasterNew(cups_raster_iocb_t iocb, void *ctx, cups_mode_t mode) _CUPS_PRIVATE;
  92 extern unsigned         _cupsRasterReadHeader(cups_raster_t *r) _CUPS_PRIVATE;
  93 extern unsigned         _cupsRasterReadPixels(cups_raster_t *r, unsigned char *p, unsigned len) _CUPS_PRIVATE;
  94 extern unsigned         _cupsRasterWriteHeader(cups_raster_t *r) _CUPS_PRIVATE;
  95 extern unsigned         _cupsRasterWritePixels(cups_raster_t *r, unsigned char *p, unsigned len) _CUPS_PRIVATE;
  96
  97 #  ifdef __cplusplus
  98 }
  99 #  endif /* __cplusplus */
 100
 101 #endif /* !_CUPS_RASTER_PRIVATE_H_ */