97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/**
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* \file sarea.h
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* SAREA definitions.
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*
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* \author Kevin E. Martin <kevin@precisioninsight.com>
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* \author Jens Owen <jens@tungstengraphics.com>
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* \author Rickard E. (Rik) Faith <faith@valinux.com>
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*/
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/*
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* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _SAREA_H_
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#define _SAREA_H_
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#include "xf86drm.h"
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/* SAREA area needs to be at least a page */
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#if defined(__alpha__)
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#define SAREA_MAX 0x2000
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#elif defined(__ia64__)
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#define SAREA_MAX 0x10000 /* 64kB */
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#else
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/* Intel 830M driver needs at least 8k SAREA */
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#define SAREA_MAX 0x2000
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#endif
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#define SAREA_MAX_DRAWABLES 256
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#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
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/**
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* SAREA per drawable information.
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*
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* \sa _XF86DRISAREA.
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*/
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typedef struct _XF86DRISAREADrawable {
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unsigned int stamp;
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unsigned int flags;
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} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
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/**
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* SAREA frame information.
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*
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* \sa _XF86DRISAREA.
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*/
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typedef struct _XF86DRISAREAFrame {
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unsigned int x;
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unsigned int y;
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unsigned int width;
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unsigned int height;
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unsigned int fullscreen;
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} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
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/**
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* SAREA definition.
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*/
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typedef struct _XF86DRISAREA {
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/** first thing is always the DRM locking structure */
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drmLock lock;
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/** \todo Use readers/writer lock for drawable_lock */
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drmLock drawable_lock;
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XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES];
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XF86DRISAREAFrameRec frame;
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drm_context_t dummy_context;
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} XF86DRISAREARec, *XF86DRISAREAPtr;
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typedef struct _XF86DRILSAREA {
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drmLock lock;
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drmLock otherLocks[31];
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} XF86DRILSAREARec, *XF86DRILSAREAPtr;
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#endif
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