1 /**************************************************************************
3 * Copyright 2008 VMware, Inc.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
32 #include "pipe/p_compiler.h"
33 #include "util/u_handle_table.h"
36 #include "stw_pixelformat.h"
39 #define STW_MAX_PIXELFORMATS 256
45 struct stw_framebuffer
;
49 const struct stw_winsys
*stw_winsys
;
51 CRITICAL_SECTION screen_mutex
;
52 bool screen_initialized
;
53 struct pipe_screen
*screen
;
55 /* Cache some PIPE_CAP_* */
56 unsigned max_2d_length
;
59 struct st_manager
*smapi
;
63 struct stw_pixelformat_info pixelformats
[STW_MAX_PIXELFORMATS
];
64 unsigned pixelformat_count
;
65 unsigned pixelformat_extended_count
;
67 struct WGLCALLBACKS callbacks
;
69 CRITICAL_SECTION ctx_mutex
;
70 struct handle_table
*ctx_table
;
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.
76 CRITICAL_SECTION fb_mutex
;
77 struct stw_framebuffer
*fb_head
;
80 unsigned long memdbg_no
;
83 /** WGL_EXT_swap_control */
91 extern struct stw_device
*stw_dev
;
94 stw_init_screen(void);
96 static inline struct stw_context
*
97 stw_lookup_context_locked( DHGLRC dhglrc
)
99 if (dhglrc
== 0 || stw_dev
== NULL
)
101 return (struct stw_context
*) handle_table_get(stw_dev
->ctx_table
, dhglrc
);
106 stw_lock_contexts(struct stw_device
*stw_dev
)
108 EnterCriticalSection(&stw_dev
->ctx_mutex
);
113 stw_unlock_contexts(struct stw_device
*stw_dev
)
115 LeaveCriticalSection(&stw_dev
->ctx_mutex
);
120 stw_lock_framebuffers(struct stw_device
*stw_dev
)
122 EnterCriticalSection(&stw_dev
->fb_mutex
);
127 stw_unlock_framebuffers(struct stw_device
*stw_dev
)
129 LeaveCriticalSection(&stw_dev
->fb_mutex
);
133 #endif /* STW_DEVICE_H_ */