rom/graphics/newregion.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8 #include "graphics_intern.h"
   9 #include <exec/types.h>
  10 #include <exec/memory.h>
  11 #include <graphics/regions.h>
  12 #include <proto/exec.h>
  13 #include "intregions.h"
  14
  15 /*****************************************************************************
  16
  17     NAME */
  18 #include <proto/graphics.h>
  19
  20         AROS_LH0(struct Region *, NewRegion,
  21
  22 /*  SYNOPSIS */
  23         /* void */
  24
  25 /*  LOCATION */
  26         struct GfxBase *, GfxBase, 86, Graphics)
  27
  28 /*  FUNCTION
  29         Allocates memory for a new Region and initializes it
  30         to an empty Region.
  31
  32     INPUTS
  33
  34     RESULT
  35         region - pointer to a newly created Region structure that
  36                  should be freed by a call to DisposeRegion()
  37
  38     NOTES
  39
  40     EXAMPLE
  41
  42     BUGS
  43
  44     SEE ALSO
  45         DisposeRegion()
  46
  47     INTERNALS
  48
  49     HISTORY
  50         27-11-96    digulla automatically created from
  51                             graphics_lib.fd and clib/graphics_protos.h
  52         15-01-97    mreckt  initial version
  53
  54 *****************************************************************************/
  55 {
  56     AROS_LIBFUNC_INIT
  57
  58     struct Region *new;
  59
  60 #if REGIONS_USE_MEMPOOL
  61     ObtainSemaphore(&PrivGBase(GfxBase)->regionsem);
  62     new = AllocPooled(PrivGBase(GfxBase)->regionpool, sizeof(struct Region));
  63     ReleaseSemaphore(&PrivGBase(GfxBase)->regionsem);
  64 #else
  65     new = AllocMem(sizeof(struct Region), MEMF_ANY);
  66 #endif
  67
  68     if (new) InitRegion(new);
  69
  70     return new;
  71
  72     AROS_LIBFUNC_EXIT
  73
  74 } /* NewRegion */
  75
  76