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 "frontend/api.h"
34 #include "util/u_handle_table.h"
35 #include "util/u_dynarray.h"
36 #include "util/xmlconfig.h"
37 #include <GL/gl.h>
38 #include "gldrv.h"
39 #include "stw_pixelformat.h"
40
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44
45 struct pipe_screen;
46 struct st_api;
47 struct st_manager;
48 struct stw_framebuffer;
49
50 struct stw_device
51 {
52 const struct stw_winsys *stw_winsys;
53
54 CRITICAL_SECTION screen_mutex;
55 bool screen_initialized;
56 struct pipe_screen *screen;
57
58 /* Cache some PIPE_CAP_* */
59 unsigned max_2d_length;
60
61 struct st_api *stapi;
62 struct st_manager *smapi;
63
64 LUID AdapterLuid;
65
66 struct util_dynarray pixelformats;
67 unsigned pixelformat_count;
68
69 struct WGLCALLBACKS callbacks;
70
71 CRITICAL_SECTION ctx_mutex;
72 struct handle_table *ctx_table;
73
74 /* TODO: use an atomic counter to track the number of locked
75 * stw_framebuffer objects. Assert that the counter is zero when
76 * trying to lock this mutex.
77 */
78 CRITICAL_SECTION fb_mutex;
79 struct stw_framebuffer *fb_head;
80
81 #ifdef DEBUG
82 unsigned long memdbg_no;
83 #endif
84
85 /** WGL_EXT_swap_control */
86 int refresh_rate;
87 int swap_interval;
88
89 driOptionCache option_cache;
90 driOptionCache option_info;
91 struct st_config_options st_options;
92
93 bool initialized;
94 };
95
96
97 extern struct stw_device *stw_dev;
98
99 boolean
100 stw_init_screen(HDC hdc);
101
102 struct stw_device *
103 stw_get_device(void);
104
105 static inline struct stw_context *
stw_lookup_context_locked(DHGLRC dhglrc)106 stw_lookup_context_locked( DHGLRC dhglrc )
107 {
108 if (dhglrc == 0 || stw_dev == NULL)
109 return NULL;
110 return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
111 }
112
113
114 static inline void
stw_lock_contexts(struct stw_device * stw_dev)115 stw_lock_contexts(struct stw_device *stw_dev)
116 {
117 EnterCriticalSection(&stw_dev->ctx_mutex);
118 }
119
120
121 static inline void
stw_unlock_contexts(struct stw_device * stw_dev)122 stw_unlock_contexts(struct stw_device *stw_dev)
123 {
124 LeaveCriticalSection(&stw_dev->ctx_mutex);
125 }
126
127 static inline struct stw_context *
stw_lookup_context(DHGLRC dhglrc)128 stw_lookup_context( DHGLRC dhglrc )
129 {
130 struct stw_context *ret;
131 stw_lock_contexts(stw_dev);
132 ret = stw_lookup_context_locked(dhglrc);
133 stw_unlock_contexts(stw_dev);
134 return ret;
135 }
136
137
138 static inline void
stw_lock_framebuffers(struct stw_device * stw_dev)139 stw_lock_framebuffers(struct stw_device *stw_dev)
140 {
141 EnterCriticalSection(&stw_dev->fb_mutex);
142 }
143
144
145 static inline void
stw_unlock_framebuffers(struct stw_device * stw_dev)146 stw_unlock_framebuffers(struct stw_device *stw_dev)
147 {
148 LeaveCriticalSection(&stw_dev->fb_mutex);
149 }
150
151 #ifdef __cplusplus
152 }
153 #endif
154
155 #endif /* STW_DEVICE_H_ */
156