xorg-server-1.4/dbe/midbestr.h

   1 /******************************************************************************
   2  *
   3  * Copyright (c) 1994, 1995  Hewlett-Packard Company
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  19  * IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
  22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Except as contained in this notice, the name of the Hewlett-Packard
  25  * Company shall not be used in advertising or otherwise to promote the
  26  * sale, use or other dealings in this Software without prior written
  27  * authorization from the Hewlett-Packard Company.
  28  *
  29  *     Header file for users of machine-independent DBE code
  30  *
  31  *****************************************************************************/
  32
  33
  34 #ifdef HAVE_DIX_CONFIG_H
  35 #include <dix-config.h>
  36 #endif
  37
  38 #ifndef MIDBE_STRUCT_H
  39 #define MIDBE_STRUCT_H
  40
  41
  42 /* DEFINES */
  43
  44 #define MI_DBE_WINDOW_PRIV_PRIV(pDbeWindowPriv) \
  45     (((miDbeWindowPrivPrivIndex < 0) || (!pDbeWindowPriv)) ? \
  46     NULL : \
  47     ((MiDbeWindowPrivPrivPtr) \
  48      ((pDbeWindowPriv)->devPrivates[miDbeWindowPrivPrivIndex].ptr)))
  49
  50 #define MI_DBE_WINDOW_PRIV_PRIV_FROM_WINDOW(pWin)\
  51     MI_DBE_WINDOW_PRIV_PRIV(DBE_WINDOW_PRIV(pWin))
  52
  53 #define MI_DBE_SCREEN_PRIV_PRIV(pDbeScreenPriv) \
  54     (((miDbeScreenPrivPrivIndex < 0) || (!pDbeScreenPriv)) ? \
  55     NULL : \
  56     ((MiDbeScreenPrivPrivPtr) \
  57      ((pDbeScreenPriv)->devPrivates[miDbeScreenPrivPrivIndex].ptr)))
  58
  59
  60 /* TYPEDEFS */
  61
  62 typedef struct _MiDbeWindowPrivPrivRec
  63 {
  64     /* Place machine-specific fields in here.
  65      * Since this is mi code, we do not really have machine-specific fields.
  66      */
  67
  68     /* Pointer to a drawable that contains the contents of the back buffer.
  69      */
  70     PixmapPtr           pBackBuffer;
  71
  72     /* Pointer to a drawable that contains the contents of the front buffer.
  73      * This pointer is only used for the XdbeUntouched swap action.  For that
  74      * swap action, we need to copy the front buffer (window) contents into
  75      * this drawable, copy the contents of current back buffer drawable (the
  76      * back buffer) into the window, swap the front and back drawable pointers,
  77      * and then swap the drawable/resource associations in the resource
  78      * database.
  79      */
  80     PixmapPtr           pFrontBuffer;
  81
  82     /* Pointer back to our window private with which we are associated. */
  83     DbeWindowPrivPtr    pDbeWindowPriv;
  84
  85 } MiDbeWindowPrivPrivRec, *MiDbeWindowPrivPrivPtr;
  86
  87 typedef struct _MiDbeScreenPrivPrivRec
  88 {
  89     /* Place machine-specific fields in here.
  90      * Since this is mi code, we do not really have machine-specific fields.
  91      */
  92
  93     /* Pointer back to our screen private with which we are associated. */
  94     DbeScreenPrivPtr    pDbeScreenPriv;
  95
  96 } MiDbeScreenPrivPrivRec, *MiDbeScreenPrivPrivPtr;
  97
  98 #endif /* MIDBE_STRUCT_H */
  99