1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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 **************************************************************************/
30 #include "glapi/glthread.h"
31 #include "util/u_debug.h"
32 #include "util/u_math.h"
33 #include "util/u_memory.h"
34 #include "pipe/p_screen.h"
36 #include "stw_device.h"
37 #include "stw_winsys.h"
38 #include "stw_pixelformat.h"
41 #include "stw_framebuffer.h"
45 extern _glthread_Mutex OneTimeLock
;
49 struct stw_device
*stw_dev
= NULL
;
53 stw_init(const struct stw_winsys
*stw_winsys
)
55 static struct stw_device stw_dev_storage
;
56 struct pipe_screen
*screen
;
58 debug_printf("%s\n", __FUNCTION__
);
64 stw_dev
= &stw_dev_storage
;
65 memset(stw_dev
, 0, sizeof(*stw_dev
));
68 stw_dev
->memdbg_no
= debug_memory_begin();
71 stw_dev
->stw_winsys
= stw_winsys
;
74 _glthread_INIT_MUTEX(OneTimeLock
);
77 stw_dev
->stapi
= stw_st_create_api();
78 stw_dev
->smapi
= CALLOC_STRUCT(st_manager
);
79 if (!stw_dev
->stapi
|| !stw_dev
->smapi
)
82 screen
= stw_winsys
->create_screen();
86 if(stw_winsys
->get_adapter_luid
)
87 stw_winsys
->get_adapter_luid(screen
, &stw_dev
->AdapterLuid
);
89 stw_dev
->smapi
->screen
= screen
;
90 stw_dev
->screen
= screen
;
92 pipe_mutex_init( stw_dev
->ctx_mutex
);
93 pipe_mutex_init( stw_dev
->fb_mutex
);
95 stw_dev
->ctx_table
= handle_table_create();
96 if (!stw_dev
->ctx_table
) {
100 stw_pixelformat_init();
106 FREE(stw_dev
->smapi
);
108 stw_dev
->stapi
->destroy(stw_dev
->stapi
);
116 stw_init_thread(void)
118 return stw_tls_init_thread();
123 stw_cleanup_thread(void)
125 stw_tls_cleanup_thread();
134 debug_printf("%s\n", __FUNCTION__
);
140 * Abort cleanup if there are still active contexts. In some situations
141 * this DLL may be unloaded before the DLL that is using GL contexts is.
143 pipe_mutex_lock( stw_dev
->ctx_mutex
);
144 dhglrc
= handle_table_get_first_handle(stw_dev
->ctx_table
);
145 pipe_mutex_unlock( stw_dev
->ctx_mutex
);
147 debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__
);
152 handle_table_destroy(stw_dev
->ctx_table
);
154 stw_framebuffer_cleanup();
156 pipe_mutex_destroy( stw_dev
->fb_mutex
);
157 pipe_mutex_destroy( stw_dev
->ctx_mutex
);
159 FREE(stw_dev
->smapi
);
160 stw_dev
->stapi
->destroy(stw_dev
->stapi
);
162 stw_dev
->screen
->destroy(stw_dev
->screen
);
165 _glthread_DESTROY_MUTEX(OneTimeLock
);
167 _glapi_destroy_multithread();
171 debug_memory_end(stw_dev
->memdbg_no
);
181 stw_lookup_context_locked( DHGLRC dhglrc
)
189 return (struct stw_context
*) handle_table_get(stw_dev
->ctx_table
, dhglrc
);
203 size
= MIN2(nProcs
* sizeof *pProcs
, sizeof stw_dev
->callbacks
);
204 memcpy(&stw_dev
->callbacks
, pProcs
, size
);
214 /* TODO: get the expected version from the winsys */
215 return ulVersion
== 1;