1 | /** |
2 | * \file drm_sarea.h |
3 | * \brief SAREA definitions |
4 | * |
5 | * \author Michel Dänzer <michel@daenzer.net> |
6 | */ |
7 | |
8 | /* |
9 | * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas. |
10 | * All Rights Reserved. |
11 | * |
12 | * Permission is hereby granted, free of charge, to any person obtaining a |
13 | * copy of this software and associated documentation files (the "Software"), |
14 | * to deal in the Software without restriction, including without limitation |
15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
16 | * and/or sell copies of the Software, and to permit persons to whom the |
17 | * Software is furnished to do so, subject to the following conditions: |
18 | * |
19 | * The above copyright notice and this permission notice (including the next |
20 | * paragraph) shall be included in all copies or substantial portions of the |
21 | * Software. |
22 | * |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
26 | * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
29 | * OTHER DEALINGS IN THE SOFTWARE. |
30 | */ |
31 | |
32 | #ifndef _DRM_SAREA_H_ |
33 | #define _DRM_SAREA_H_ |
34 | |
35 | #include <drm/drm.h> |
36 | |
37 | /* SAREA area needs to be at least a page */ |
38 | #if defined(__alpha__) |
39 | #define SAREA_MAX 0x2000U |
40 | #elif defined(__mips__) |
41 | #define SAREA_MAX 0x4000U |
42 | #elif defined(__ia64__) |
43 | #define SAREA_MAX 0x10000U /* 64kB */ |
44 | #else |
45 | /* Intel 830M driver needs at least 8k SAREA */ |
46 | #define SAREA_MAX 0x2000U |
47 | #endif |
48 | |
49 | /** Maximum number of drawables in the SAREA */ |
50 | #define SAREA_MAX_DRAWABLES 256 |
51 | |
52 | #define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 |
53 | |
54 | /** SAREA drawable */ |
55 | struct drm_sarea_drawable { |
56 | unsigned int stamp; |
57 | unsigned int flags; |
58 | }; |
59 | |
60 | /** SAREA frame */ |
61 | struct drm_sarea_frame { |
62 | unsigned int x; |
63 | unsigned int y; |
64 | unsigned int width; |
65 | unsigned int height; |
66 | unsigned int fullscreen; |
67 | }; |
68 | |
69 | /** SAREA */ |
70 | struct drm_sarea { |
71 | /** first thing is always the DRM locking structure */ |
72 | struct drm_hw_lock lock; |
73 | /** \todo Use readers/writer lock for drm_sarea::drawable_lock */ |
74 | struct drm_hw_lock drawable_lock; |
75 | struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */ |
76 | struct drm_sarea_frame frame; /**< frame */ |
77 | drm_context_t dummy_context; |
78 | }; |
79 | |
80 | #ifndef __KERNEL__ |
81 | typedef struct drm_sarea_drawable drm_sarea_drawable_t; |
82 | typedef struct drm_sarea_frame drm_sarea_frame_t; |
83 | typedef struct drm_sarea drm_sarea_t; |
84 | #endif |
85 | |
86 | #endif /* _DRM_SAREA_H_ */ |
87 | |