rom/graphics/nextdisplayinfo.c

   1 /*
   2     Copyright © 1995-2007, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Graphics function NextDisplayInfo()
   6     Lang: english
   7 */
   8 #include <graphics/displayinfo.h>
   9 #include <hidd/graphics.h>
  10 #include "graphics_intern.h"
  11 #include "dispinfo.h"
  12
  13 /*****************************************************************************
  14
  15     NAME */
  16 #include <proto/graphics.h>
  17
  18         AROS_LH1(ULONG, NextDisplayInfo,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(ULONG, last_ID, D0),
  22
  23 /*  LOCATION */
  24         struct GfxBase *, GfxBase, 122, Graphics)
  25
  26 /*  FUNCTION
  27         Go to next entry in the DisplayInfo database.
  28
  29     INPUTS
  30         last_ID - previous displayinfo identifier
  31                   or INVALID_ID if beginning iteration
  32
  33     RESULT
  34         next_ID - subsequent displayinfo identifier
  35                   or INVALID_ID if no more records
  36
  37     NOTES
  38
  39     EXAMPLE
  40
  41     BUGS
  42
  43     SEE ALSO
  44         FindDisplayInfo(), GetDisplayInfoData(), graphics/displayinfo.h
  45
  46     INTERNALS
  47
  48     HISTORY
  49
  50
  51 ******************************************************************************/
  52 {
  53     AROS_LIBFUNC_INIT
  54
  55     OOP_Object *sync, *pixfmt;
  56
  57     HIDDT_ModeID hiddmode;
  58     ULONG id;
  59
  60     hiddmode = (HIDDT_ModeID)AMIGA_TO_HIDD_MODEID(last_ID);
  61
  62     /* Get the next modeid */
  63     hiddmode = HIDD_Gfx_NextModeID(SDD(GfxBase)->gfxhidd, hiddmode, &sync, &pixfmt);
  64
  65     id = HIDD_TO_AMIGA_MODEID(hiddmode);
  66
  67     return id;
  68
  69     AROS_LIBFUNC_EXIT
  70 } /* NextDisplayInfo */