| 1 | /**
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| 2 | * \file sarea.h
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| 3 | * SAREA definitions.
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| 4 | *
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| 5 | * \author Kevin E. Martin <kevin@precisioninsight.com>
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| 6 | * \author Jens Owen <jens@tungstengraphics.com>
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| 7 | * \author Rickard E. (Rik) Faith <faith@valinux.com>
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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| 12 | * Copyright 2000 VA Linux Systems, Inc.
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| 13 | * All Rights Reserved.
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| 14 | *
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| 15 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 16 | * copy of this software and associated documentation files (the
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| 17 | * "Software"), to deal in the Software without restriction, including
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| 18 | * without limitation the rights to use, copy, modify, merge, publish,
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| 19 | * distribute, sub license, and/or sell copies of the Software, and to
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| 20 | * permit persons to whom the Software is furnished to do so, subject to
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| 21 | * the following conditions:
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| 22 | *
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| 23 | * The above copyright notice and this permission notice (including the
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| 24 | * next paragraph) shall be included in all copies or substantial portions
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| 25 | * of the Software.
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| 26 | *
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| 27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 28 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| 29 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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| 30 | * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
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| 31 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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| 32 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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| 33 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 34 | */
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| 35 |
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| 36 | #ifndef _SAREA_H_
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| 37 | #define _SAREA_H_
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| 38 |
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| 39 | #include "xf86drm.h"
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| 40 |
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| 41 | /* SAREA area needs to be at least a page */
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| 42 | #if defined(__alpha__)
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| 43 | #define SAREA_MAX 0x2000
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| 44 | #elif defined(__ia64__)
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| 45 | #define SAREA_MAX 0x10000 /* 64kB */
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| 46 | #else
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| 47 | /* Intel 830M driver needs at least 8k SAREA */
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| 48 | #define SAREA_MAX 0x2000
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| 49 | #endif
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| 50 |
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| 51 | #define SAREA_MAX_DRAWABLES 256
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| 52 |
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| 53 | #define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
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| 54 |
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| 55 | /**
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| 56 | * SAREA per drawable information.
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| 57 | *
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| 58 | * \sa _XF86DRISAREA.
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| 59 | */
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| 60 | typedef struct _XF86DRISAREADrawable {
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| 61 | unsigned int stamp;
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| 62 | unsigned int flags;
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| 63 | } XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
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| 64 |
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| 65 | /**
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| 66 | * SAREA frame information.
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| 67 | *
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| 68 | * \sa _XF86DRISAREA.
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| 69 | */
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| 70 | typedef struct _XF86DRISAREAFrame {
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| 71 | unsigned int x;
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| 72 | unsigned int y;
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| 73 | unsigned int width;
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| 74 | unsigned int height;
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| 75 | unsigned int fullscreen;
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| 76 | } XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
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| 77 |
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| 78 | /**
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| 79 | * SAREA definition.
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| 80 | */
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| 81 | typedef struct _XF86DRISAREA {
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| 82 | /** first thing is always the DRM locking structure */
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| 83 | drmLock lock;
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| 84 | /** \todo Use readers/writer lock for drawable_lock */
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| 85 | drmLock drawable_lock;
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| 86 | XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES];
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| 87 | XF86DRISAREAFrameRec frame;
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| 88 | drm_context_t dummy_context;
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| 89 | } XF86DRISAREARec, *XF86DRISAREAPtr;
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| 90 |
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| 91 | typedef struct _XF86DRILSAREA {
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| 92 | drmLock lock;
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| 93 | drmLock otherLocks[31];
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| 94 | } XF86DRILSAREARec, *XF86DRILSAREAPtr;
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| 95 |
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| 96 | #endif
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