xorg-server-1.4/fb/fballpriv.c

   1 /*
   2  * Copyright © 1998 Keith Packard
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that
   7  * copyright notice and this permission notice appear in supporting
   8  * documentation, and that the name of Keith Packard not be used in
   9  * advertising or publicity pertaining to distribution of the software without
  10  * specific, written prior permission.  Keith Packard makes no
  11  * representations about the suitability of this software for any purpose.  It
  12  * is provided "as is" without express or implied warranty.
  13  *
  14  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  20  * PERFORMANCE OF THIS SOFTWARE.
  21  */
  22
  23 #ifdef HAVE_DIX_CONFIG_H
  24 #include <dix-config.h>
  25 #endif
  26
  27 #include "fb.h"
  28
  29 #ifdef FB_SCREEN_PRIVATE
  30 int fbScreenPrivateIndex;
  31 int fbGetScreenPrivateIndex(void)
  32 {
  33     return fbScreenPrivateIndex;
  34 }
  35 #endif
  36 int fbGCPrivateIndex;
  37 int fbGetGCPrivateIndex(void)
  38 {
  39     return fbGCPrivateIndex;
  40 }
  41 #ifndef FB_NO_WINDOW_PIXMAPS
  42 int fbWinPrivateIndex;
  43 int fbGetWinPrivateIndex(void)
  44 {
  45     return fbWinPrivateIndex;
  46 }
  47 #endif
  48 int fbGeneration;
  49
  50 Bool
  51 fbAllocatePrivates(ScreenPtr pScreen, int *pGCIndex)
  52 {
  53     if (fbGeneration != serverGeneration)
  54     {
  55         fbGCPrivateIndex = miAllocateGCPrivateIndex ();
  56 #ifndef FB_NO_WINDOW_PIXMAPS
  57         fbWinPrivateIndex = AllocateWindowPrivateIndex();
  58 #endif
  59 #ifdef FB_SCREEN_PRIVATE
  60         fbScreenPrivateIndex = AllocateScreenPrivateIndex ();
  61         if (fbScreenPrivateIndex == -1)
  62             return FALSE;
  63 #endif
  64
  65         fbGeneration = serverGeneration;
  66     }
  67     if (pGCIndex)
  68         *pGCIndex = fbGCPrivateIndex;
  69     if (!AllocateGCPrivate(pScreen, fbGCPrivateIndex, sizeof(FbGCPrivRec)))
  70         return FALSE;
  71 #ifndef FB_NO_WINDOW_PIXMAPS
  72     if (!AllocateWindowPrivate(pScreen, fbWinPrivateIndex, 0))
  73         return FALSE;
  74 #endif
  75 #ifdef FB_SCREEN_PRIVATE
  76     {
  77         FbScreenPrivPtr pScreenPriv;
  78
  79         pScreenPriv = (FbScreenPrivPtr) xalloc (sizeof (FbScreenPrivRec));
  80         if (!pScreenPriv)
  81             return FALSE;
  82         pScreen->devPrivates[fbScreenPrivateIndex].ptr = (pointer) pScreenPriv;
  83     }
  84 #endif
  85     return TRUE;
  86 }
  87
  88 #ifdef FB_ACCESS_WRAPPER
  89 ReadMemoryProcPtr wfbReadMemory;
  90 WriteMemoryProcPtr wfbWriteMemory;
  91 #endif