| 1 | /**
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| 2 | * \file drm_sarea.h
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| 3 | * \brief SAREA definitions
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| 4 | *
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| 5 | * \author Michel D�zer <[email protected]>
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
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| 10 | * All Rights Reserved.
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| 11 | *
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| 12 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 13 | * copy of this software and associated documentation files (the "Software"),
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| 14 | * to deal in the Software without restriction, including without limitation
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| 15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 16 | * and/or sell copies of the Software, and to permit persons to whom the
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| 17 | * Software is furnished to do so, subject to the following conditions:
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| 18 | *
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| 19 | * The above copyright notice and this permission notice (including the next
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| 20 | * paragraph) shall be included in all copies or substantial portions of the
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| 21 | * Software.
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| 22 | *
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| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 26 | * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 29 | * OTHER DEALINGS IN THE SOFTWARE.
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| 30 | */
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| 31 |
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| 32 | #ifndef _DRM_SAREA_H_
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| 33 | #define _DRM_SAREA_H_
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| 34 |
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| 35 | #include "drm.h"
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| 36 |
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| 37 | /* SAREA area needs to be at least a page */
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| 38 | #if defined(__alpha__)
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| 39 | #define SAREA_MAX 0x2000
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| 40 | #elif defined(__ia64__)
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| 41 | #define SAREA_MAX 0x10000 /* 64kB */
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| 42 | #else
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| 43 | /* Intel 830M driver needs at least 8k SAREA */
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| 44 | #define SAREA_MAX 0x2000
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| 45 | #endif
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| 46 |
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| 47 | /** Maximum number of drawables in the SAREA */
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| 48 | #define SAREA_MAX_DRAWABLES 256
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| 49 |
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| 50 | #define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
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| 51 |
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| 52 | /** SAREA drawable */
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| 53 | typedef struct drm_sarea_drawable {
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| 54 | unsigned int stamp;
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| 55 | unsigned int flags;
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| 56 | } drm_sarea_drawable_t;
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| 57 |
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| 58 | /** SAREA frame */
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| 59 | typedef struct drm_sarea_frame {
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| 60 | unsigned int x;
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| 61 | unsigned int y;
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| 62 | unsigned int width;
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| 63 | unsigned int height;
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| 64 | unsigned int fullscreen;
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| 65 | } drm_sarea_frame_t;
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| 66 |
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| 67 | /** SAREA */
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| 68 | typedef struct drm_sarea {
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| 69 | /** first thing is always the DRM locking structure */
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| 70 | drm_hw_lock_t lock;
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| 71 | /** \todo Use readers/writer lock for drm_sarea::drawable_lock */
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| 72 | drm_hw_lock_t drawable_lock;
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| 73 | drm_sarea_drawable_t drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */
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| 74 | drm_sarea_frame_t frame; /**< frame */
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| 75 | drm_context_t dummy_context;
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| 76 | } drm_sarea_t;
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| 77 |
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| 78 | #endif /* _DRM_SAREA_H_ */
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