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 <GL/gl.h>
35 #include "gldrv.h"
36 #include "stw_pixelformat.h"
37
38
39 #define STW_MAX_PIXELFORMATS 256
40
41
42 struct pipe_screen;
43 struct st_api;
44 struct st_manager;
45 struct stw_framebuffer;
46
47 struct stw_device
48 {
49 const struct stw_winsys *stw_winsys;
50
51 CRITICAL_SECTION screen_mutex;
52 bool screen_initialized;
53 struct pipe_screen *screen;
54
55 /* Cache some PIPE_CAP_* */
56 unsigned max_2d_length;
57
58 struct st_api *stapi;
59 struct st_manager *smapi;
60
61 LUID AdapterLuid;
62
63 struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
64 unsigned pixelformat_count;
65 unsigned pixelformat_extended_count;
66
67 struct WGLCALLBACKS callbacks;
68
69 CRITICAL_SECTION ctx_mutex;
70 struct handle_table *ctx_table;
71
72 /* TODO: use an atomic counter to track the number of locked
73 * stw_framebuffer objects. Assert that the counter is zero when
74 * trying to lock this mutex.
75 */
76 CRITICAL_SECTION fb_mutex;
77 struct stw_framebuffer *fb_head;
78
79 #ifdef DEBUG
80 unsigned long memdbg_no;
81 #endif
82
83 /** WGL_EXT_swap_control */
84 int refresh_rate;
85 int swap_interval;
86
87 bool initialized;
88 };
89
90
91 extern struct stw_device *stw_dev;
92
93 boolean
94 stw_init_screen(void);
95
96 static inline struct stw_context *
stw_lookup_context_locked(DHGLRC dhglrc)97 stw_lookup_context_locked( DHGLRC dhglrc )
98 {
99 if (dhglrc == 0 || stw_dev == NULL)
100 return NULL;
101 return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
102 }
103
104
105 static inline void
stw_lock_contexts(struct stw_device * stw_dev)106 stw_lock_contexts(struct stw_device *stw_dev)
107 {
108 EnterCriticalSection(&stw_dev->ctx_mutex);
109 }
110
111
112 static inline void
stw_unlock_contexts(struct stw_device * stw_dev)113 stw_unlock_contexts(struct stw_device *stw_dev)
114 {
115 LeaveCriticalSection(&stw_dev->ctx_mutex);
116 }
117
118
119 static inline void
stw_lock_framebuffers(struct stw_device * stw_dev)120 stw_lock_framebuffers(struct stw_device *stw_dev)
121 {
122 EnterCriticalSection(&stw_dev->fb_mutex);
123 }
124
125
126 static inline void
stw_unlock_framebuffers(struct stw_device * stw_dev)127 stw_unlock_framebuffers(struct stw_device *stw_dev)
128 {
129 LeaveCriticalSection(&stw_dev->fb_mutex);
130 }
131
132
133 #endif /* STW_DEVICE_H_ */
134