workbench/libs/diskfont/dosstreamhook.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Hook used by endian funcs to read from a dos file.
   6     Lang: english
   7 */
   8
   9 /****************************************************************************************/
  10
  11 #include <proto/dos.h>
  12 #include <aros/debug.h>
  13 #include <aros/asmcall.h>
  14 #include <aros/bigendianio.h>
  15
  16 /****************************************************************************************/
  17
  18 AROS_UFH3(LONG, dosstreamhook,
  19     AROS_UFHA(struct Hook *, hook, A0),
  20     AROS_UFHA(BPTR,          fh,   A2),
  21     AROS_UFHA(ULONG       *, msg,  A1)
  22 )
  23 {
  24     AROS_USERFUNC_INIT
  25
  26     LONG rc = 0;
  27
  28     switch (*msg)
  29     {
  30     case BEIO_READ:
  31         rc = FGetC (fh);
  32 #if 0
  33 kprintf ("dsh: Read: %02X\n", rc);
  34 #endif
  35
  36         break;
  37
  38     case BEIO_WRITE:
  39         rc = FPutC (fh, ((struct BEIOM_Write *)msg)->Data);
  40         break;
  41
  42     case BEIO_IGNORE:
  43         Flush (fh);
  44
  45         rc = Seek (fh, ((struct BEIOM_Ignore *)msg)->Count, OFFSET_CURRENT);
  46 #if 0
  47 kprintf ("dsh: Skip %d\n", ((struct BEIOM_Ignore *)msg)->Count);
  48 #endif
  49         break;
  50
  51     }
  52
  53     return rc;
  54     AROS_USERFUNC_EXIT
  55 } /* dosstreamhook */
  56
  57 /****************************************************************************************/