arch/.unmaintained/morphos/Include/aros/bigendianio.h

   1 #ifndef AROS_STRUCTDESC_H
   2 #define AROS_STRUCTDESC_H
   3
   4 /*
   5     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: Read and write big endian structures from and to a file
   9     Lang: english
  10 */
  11
  12 #ifndef EXEC_TYPES_H
  13 #   include <exec/types.h>
  14 #endif
  15 #ifndef DOS_DOS_H
  16 #   include <dos/dos.h>
  17 #endif
  18 #ifndef UTILITY_HOOKS_H
  19 #   include <utility/hooks.h>
  20 #endif
  21 #include <stddef.h>
  22
  23 /* Big endian streamhook mathods */
  24 struct BEIOM_Read
  25 {
  26     ULONG MethodID; /* BEIO_READ */
  27 };
  28
  29 struct BEIOM_Write
  30 {
  31     ULONG MethodID; /* BEIO_WRITE */
  32     ULONG Data;     /* One byte to emit (0..255) */
  33 };
  34
  35 struct BEIOM_Ignore
  36 {
  37     ULONG MethodID; /* BEIO_IGNORE */
  38     ULONG Count;    /* How many bytes */
  39 };
  40
  41 /* Big endian streamhook access modes */
  42 #define BEIO_READ       0   /* Read a byte */
  43 #define BEIO_WRITE      1   /* Write a byte */
  44 #define BEIO_IGNORE     2   /* Skip some bytes (read only) */
  45
  46 #define SDT_END         0 /* Read one  8bit byte */
  47 #define SDT_UBYTE       1 /* Read one  8bit byte */
  48 #define SDT_UWORD       2 /* Read one 16bit word */
  49 #define SDT_ULONG       3 /* Read one 32bit long */
  50 #define SDT_FLOAT       4 /* Read one 32bit IEEE */
  51 #define SDT_DOUBLE      5 /* Read one 64bit IEEE */
  52 #define SDT_STRING      6 /* Read a string */
  53 #define SDT_STRUCT      7 /* Read a structure */
  54 #define SDT_PTR         8 /* Follow a pointer */
  55 #define SDT_IGNORE      9 /* Ignore x bytes */
  56 #define SDT_FILL_BYTE  10 /* Fill x bytes */
  57 #define SDT_FILL_LONG  11 /* Fill x longs */
  58 #define SDT_IFILL_BYTE 12 /* Ignore and fill x bytes */
  59 #define SDT_IFILL_LONG 13 /* Ignore and fill x longs */
  60 #define SDT_SPECIAL    14 /* Call user routine */
  61
  62 struct SDData
  63 {
  64     APTR   sdd_Dest;
  65     WORD   sdd_Mode;
  66     void * sdd_Stream;
  67 };
  68
  69 #define SDV_SPECIALMODE_READ    0  /* Function was called to read from file */
  70 #define SDV_SPECIALMODE_WRITE   1  /* Function was called to write to file */
  71 #define SDV_SPECIALMODE_FREE    2  /* Function was called to free memory */
  72
  73 #define SDM_END                         SDT_END
  74 #define SDM_UBYTE(offset)               SDT_UBYTE, offset
  75 #define SDM_UWORD(offset)               SDT_UWORD, offset
  76 #define SDM_ULONG(offset)               SDT_ULONG, offset
  77 #define SDM_FLOAT(offset)               SDT_FLOAT, offset
  78 #define SDM_DOUBLE(offset)              SDT_DOUBLE, offset
  79 #define SDM_STRING(offset)              SDT_STRING, offset
  80 #define SDM_STRUCT(offset,sd)           SDT_STRUCT, offset, ((IPTR)sd)
  81 #define SDM_PTR(offset,sd)              SDT_PTR, offset, ((IPTR)sd)
  82 #define SDM_IGNORE(n)                   SDT_IGNORE, n
  83 #define SDM_FILL_BYTE(offset,v,n)       SDT_FILL_BYTE, offset, v, n
  84 #define SDM_FILL_LONG(offset,v,n)       SDT_FILL_LONG, offset, v, n
  85 #define SDM_IFILL_BYTE(offset,v,n)      SDT_FILL_BYTE, offset, v, n
  86 #define SDM_IFILL_LONG(offset,v,n)      SDT_FILL_LONG, offset, v, n
  87 #define SDM_SPECIAL(offset,sdhook)      SDT_SPECIAL, offset, ((IPTR)sdhook)
  88
  89 #define SDM_BYTE    SDM_UBYTE
  90 #define SDM_WORD    SDM_UWORD
  91 #define SDM_LONG    SDM_ULONG
  92
  93 #endif /* AROS_STRUCTDESC_H */
  94