1 /**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef STW_DEVICE_H_
29 #define STW_DEVICE_H_
30
31
32 #include "pipe/p_compiler.h"
33 #include "util/u_handle_table.h"
34 #include "stw_icd.h"
35 #include "stw_pixelformat.h"
36
37
38 #define STW_MAX_PIXELFORMATS 256
39
40
41 struct pipe_screen;
42 struct st_api;
43 struct st_manager;
44 struct stw_framebuffer;
45
46 struct stw_device
47 {
48 const struct stw_winsys *stw_winsys;
49
50 struct pipe_screen *screen;
51
52 /* Cache some PIPE_CAP_* */
53 unsigned max_2d_levels;
54 unsigned max_2d_length;
55
56 struct st_api *stapi;
57 struct st_manager *smapi;
58
59 LUID AdapterLuid;
60
61 struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
62 unsigned pixelformat_count;
63 unsigned pixelformat_extended_count;
64
65 GLCALLBACKTABLE callbacks;
66
67 CRITICAL_SECTION ctx_mutex;
68 struct handle_table *ctx_table;
69
70 /* TODO: use an atomic counter to track the number of locked
71 * stw_framebuffer objects. Assert that the counter is zero when
72 * trying to lock this mutex.
73 */
74 CRITICAL_SECTION fb_mutex;
75 struct stw_framebuffer *fb_head;
76
77 #ifdef DEBUG
78 unsigned long memdbg_no;
79 #endif
80
81 /** WGL_EXT_swap_control */
82 int refresh_rate;
83 int swap_interval;
84
85 bool initialized;
86 };
87
88
89 extern struct stw_device *stw_dev;
90
91
92 static inline struct stw_context *
stw_lookup_context_locked(DHGLRC dhglrc)93 stw_lookup_context_locked( DHGLRC dhglrc )
94 {
95 if (dhglrc == 0 || stw_dev == NULL)
96 return NULL;
97 return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
98 }
99
100
101 static inline void
stw_lock_contexts(struct stw_device * stw_dev)102 stw_lock_contexts(struct stw_device *stw_dev)
103 {
104 EnterCriticalSection(&stw_dev->ctx_mutex);
105 }
106
107
108 static inline void
stw_unlock_contexts(struct stw_device * stw_dev)109 stw_unlock_contexts(struct stw_device *stw_dev)
110 {
111 LeaveCriticalSection(&stw_dev->ctx_mutex);
112 }
113
114
115 static inline void
stw_lock_framebuffers(struct stw_device * stw_dev)116 stw_lock_framebuffers(struct stw_device *stw_dev)
117 {
118 EnterCriticalSection(&stw_dev->fb_mutex);
119 }
120
121
122 static inline void
stw_unlock_framebuffers(struct stw_device * stw_dev)123 stw_unlock_framebuffers(struct stw_device *stw_dev)
124 {
125 LeaveCriticalSection(&stw_dev->fb_mutex);
126 }
127
128
129 #endif /* STW_DEVICE_H_ */
130