workbench/libs/mesa/include/GL/internal/sarea.h

   1 /**
   2  * \file sarea.h
   3  * SAREA definitions.
   4  *
   5  * \author Kevin E. Martin <kevin@precisioninsight.com>
   6  * \author Jens Owen <jens@tungstengraphics.com>
   7  * \author Rickard E. (Rik) Faith <faith@valinux.com>
   8  */
   9
  10 /*
  11  * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
  12  * Copyright 2000 VA Linux Systems, Inc.
  13  * All Rights Reserved.
  14  *
  15  * Permission is hereby granted, free of charge, to any person obtaining a
  16  * copy of this software and associated documentation files (the
  17  * "Software"), to deal in the Software without restriction, including
  18  * without limitation the rights to use, copy, modify, merge, publish,
  19  * distribute, sub license, and/or sell copies of the Software, and to
  20  * permit persons to whom the Software is furnished to do so, subject to
  21  * the following conditions:
  22  *
  23  * The above copyright notice and this permission notice (including the
  24  * next paragraph) shall be included in all copies or substantial portions
  25  * of the Software.
  26  *
  27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  28  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  30  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  31  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  32  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  33  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  34  */
  35
  36
  37 #ifndef _SAREA_H_
  38 #define _SAREA_H_
  39
  40 #include "xf86drm.h"
  41
  42 /* SAREA area needs to be at least a page */
  43 #if defined(__alpha__)
  44 #define SAREA_MAX                       0x2000
  45 #elif defined(__ia64__)
  46 #define SAREA_MAX                       0x10000         /* 64kB */
  47 #else
  48 /* Intel 830M driver needs at least 8k SAREA */
  49 #define SAREA_MAX                       0x2000
  50 #endif
  51
  52 #define SAREA_MAX_DRAWABLES             256
  53
  54 #define SAREA_DRAWABLE_CLAIMED_ENTRY    0x80000000
  55
  56 /**
  57  * SAREA per drawable information.
  58  *
  59  * \sa _XF86DRISAREA.
  60  */
  61 typedef struct _XF86DRISAREADrawable {
  62     unsigned int        stamp;
  63     unsigned int        flags;
  64 } XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
  65
  66 /**
  67  * SAREA frame information.
  68  *
  69  * \sa  _XF86DRISAREA.
  70  */
  71 typedef struct _XF86DRISAREAFrame {
  72     unsigned int        x;
  73     unsigned int        y;
  74     unsigned int        width;
  75     unsigned int        height;
  76     unsigned int        fullscreen;
  77 } XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
  78
  79 /**
  80  * SAREA definition.
  81  */
  82 typedef struct _XF86DRISAREA {
  83     /** first thing is always the DRM locking structure */
  84     drmLock                     lock;
  85     /** \todo Use readers/writer lock for drawable_lock */
  86     drmLock                     drawable_lock;
  87     XF86DRISAREADrawableRec     drawableTable[SAREA_MAX_DRAWABLES];
  88     XF86DRISAREAFrameRec        frame;
  89     drm_context_t                       dummy_context;
  90 } XF86DRISAREARec, *XF86DRISAREAPtr;
  91
  92 #endif