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 "util/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 "stw_gdishim.h"
39 #include "gldrv.h"
40 #include "stw_pixelformat.h"
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
46 struct pipe_screen;
47 struct pipe_frontend_screen;
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 pipe_frontend_screen *fscreen;
62
63 LUID AdapterLuid;
64
65 struct util_dynarray pixelformats;
66 unsigned pixelformat_count;
67
68 struct WGLCALLBACKS callbacks;
69
70 CRITICAL_SECTION ctx_mutex;
71 struct handle_table *ctx_table;
72
73 /* TODO: use an atomic counter to track the number of locked
74 * stw_framebuffer objects. Assert that the counter is zero when
75 * trying to lock this mutex.
76 */
77 CRITICAL_SECTION fb_mutex;
78 struct stw_framebuffer *fb_head;
79
80 #if MESA_DEBUG
81 unsigned long memdbg_no;
82 #endif
83
84 /** WGL_EXT_swap_control */
85 int refresh_rate;
86 int swap_interval;
87
88 driOptionCache option_cache;
89 driOptionCache option_info;
90 struct st_config_options st_options;
91
92 bool initialized;
93 bool zink;
94 };
95
96
97 extern struct stw_device *stw_dev;
98
99 bool
100 stw_init_screen(HDC hdc);
101
102 struct stw_device *
103 stw_get_device(void);
104
105 char *
106 stw_get_config_xml(void);
107
108 static inline struct stw_context *
stw_lookup_context_locked(DHGLRC dhglrc)109 stw_lookup_context_locked( DHGLRC dhglrc )
110 {
111 if (dhglrc == 0 || stw_dev == NULL)
112 return NULL;
113 return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
114 }
115
116
117 static inline void
stw_lock_contexts(struct stw_device * stw_dev)118 stw_lock_contexts(struct stw_device *stw_dev)
119 {
120 EnterCriticalSection(&stw_dev->ctx_mutex);
121 }
122
123
124 static inline void
stw_unlock_contexts(struct stw_device * stw_dev)125 stw_unlock_contexts(struct stw_device *stw_dev)
126 {
127 LeaveCriticalSection(&stw_dev->ctx_mutex);
128 }
129
130 static inline struct stw_context *
stw_lookup_context(DHGLRC dhglrc)131 stw_lookup_context( DHGLRC dhglrc )
132 {
133 struct stw_context *ret;
134 stw_lock_contexts(stw_dev);
135 ret = stw_lookup_context_locked(dhglrc);
136 stw_unlock_contexts(stw_dev);
137 return ret;
138 }
139
140
141 static inline void
stw_lock_framebuffers(struct stw_device * stw_dev)142 stw_lock_framebuffers(struct stw_device *stw_dev)
143 {
144 EnterCriticalSection(&stw_dev->fb_mutex);
145 }
146
147
148 static inline void
stw_unlock_framebuffers(struct stw_device * stw_dev)149 stw_unlock_framebuffers(struct stw_device *stw_dev)
150 {
151 LeaveCriticalSection(&stw_dev->fb_mutex);
152 }
153
154 #ifdef __cplusplus
155 }
156 #endif
157
158 #endif /* STW_DEVICE_H_ */
159