workbench/libs/cgfx/cybergraphics_init.c

   1 /*
   2     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/debug.h>
   7 #include <aros/symbolsets.h>
   8 #include <hidd/gfx.h>
   9 #include <proto/oop.h>
  10
  11 #include "cybergraphics_intern.h"
  12
  13 static void ReleaseAttrBases(struct IntCGFXBase *CyberGfxBase)
  14 {
  15     if (__IHidd_BitMap)
  16         OOP_ReleaseAttrBase(IID_Hidd_BitMap);
  17     if (__IHidd_GC)
  18         OOP_ReleaseAttrBase(IID_Hidd_GC);
  19     if (__IHidd_Sync)
  20         OOP_ReleaseAttrBase(IID_Hidd_Sync);
  21     if (__IHidd_PixFmt)
  22         OOP_ReleaseAttrBase(IID_Hidd_PixFmt);
  23     if (__IHidd_Gfx)
  24         OOP_ReleaseAttrBase(IID_Hidd_Gfx);
  25 }
  26
  27 static int cgfx_init(struct IntCGFXBase *CyberGfxBase)
  28 {
  29     EnterFunc(bug("[CGX] cgfx_init()\n"));
  30
  31     /* Initialize the semaphore used for the chunky buffer */
  32     InitSemaphore(&CyberGfxBase->pixbuf_sema);
  33
  34     /* Init the needed attrbases */
  35
  36     __IHidd_BitMap      = OOP_ObtainAttrBase(IID_Hidd_BitMap);
  37     __IHidd_GC          = OOP_ObtainAttrBase(IID_Hidd_GC);
  38     __IHidd_Sync        = OOP_ObtainAttrBase(IID_Hidd_Sync);
  39     __IHidd_PixFmt      = OOP_ObtainAttrBase(IID_Hidd_PixFmt);
  40     __IHidd_Gfx         = OOP_ObtainAttrBase(IID_Hidd_Gfx);
  41
  42     CyberGfxBase->basegc = OOP_FindClass(CLID_Hidd_GC);
  43     CyberGfxBase->basebm = OOP_FindClass(CLID_Hidd_BitMap);
  44
  45     if (__IHidd_BitMap   &&
  46         __IHidd_GC       &&
  47         __IHidd_Sync     &&
  48         __IHidd_PixFmt   &&
  49         __IHidd_Gfx)
  50     {
  51         CyberGfxBase->pixel_buf=AllocMem(PIXELBUF_SIZE,MEMF_ANY);
  52         if (CyberGfxBase->pixel_buf)
  53         {
  54             WORD i;
  55
  56             for (i = 0; i < 256; i++)
  57             {
  58                 CyberGfxBase->greytab[i] = i * 0x010101;
  59             }
  60
  61             ReturnInt("[CGX] cgfx_init", int, TRUE);
  62         }
  63
  64     }
  65
  66     ReleaseAttrBases(CyberGfxBase);
  67     ReturnInt("[CGX] cgfx_init", int, FALSE);
  68 }
  69
  70 static int cgfx_expunge (struct IntCGFXBase *CyberGfxBase)
  71 {
  72     FreeMem(CyberGfxBase->pixel_buf, PIXELBUF_SIZE);
  73     ReleaseAttrBases(CyberGfxBase);
  74
  75     return TRUE;
  76 }
  77
  78 ADD2INITLIB(cgfx_init, 0);
  79 ADD2EXPUNGELIB(cgfx_expunge, 0);