1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/**************************************************************************
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <windows.h>
#include "glapi/glthread.h"
#include "util/u_debug.h"
#include "util/u_math.h"
#include "pipe/p_screen.h"
#include "state_tracker/st_public.h"
#ifdef DEBUG
#include "trace/tr_screen.h"
#include "trace/tr_texture.h"
#endif
#include "stw_device.h"
#include "stw_winsys.h"
#include "stw_pixelformat.h"
#include "stw_icd.h"
#include "stw_tls.h"
#include "stw_framebuffer.h"
#ifdef WIN32_THREADS
extern _glthread_Mutex OneTimeLock;
#endif
struct stw_device *stw_dev = NULL;
/**
* XXX: Dispatch pipe_screen::flush_front_buffer to our
* stw_winsys::flush_front_buffer.
*/
static void
stw_flush_frontbuffer(struct pipe_screen *screen,
struct pipe_surface *surface,
void *context_private )
{
HDC hdc = (HDC)context_private;
struct stw_framebuffer *fb;
fb = stw_framebuffer_from_hdc( hdc );
if (!fb) {
/* fb can be NULL if window was destroyed already */
return;
}
stw_framebuffer_present_locked(hdc, fb, surface);
}
boolean
stw_init(const struct stw_winsys *stw_winsys)
{
static struct stw_device stw_dev_storage;
struct pipe_screen *screen;
debug_printf("%s\n", __FUNCTION__);
assert(!stw_dev);
stw_tls_init();
stw_dev = &stw_dev_storage;
memset(stw_dev, 0, sizeof(*stw_dev));
#ifdef DEBUG
stw_dev->memdbg_no = debug_memory_begin();
#endif
stw_dev->stw_winsys = stw_winsys;
#ifdef WIN32_THREADS
_glthread_INIT_MUTEX(OneTimeLock);
#endif
screen = stw_winsys->create_screen();
if(!screen)
goto error1;
if(stw_winsys->get_adapter_luid)
stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
#ifdef DEBUG
stw_dev->screen = trace_screen_create(screen);
stw_dev->trace_running = stw_dev->screen != screen ? TRUE : FALSE;
#else
stw_dev->screen = screen;
#endif
stw_dev->screen->flush_frontbuffer = &stw_flush_frontbuffer;
pipe_mutex_init( stw_dev->ctx_mutex );
pipe_mutex_init( stw_dev->fb_mutex );
stw_dev->ctx_table = handle_table_create();
if (!stw_dev->ctx_table) {
goto error1;
}
stw_pixelformat_init();
return TRUE;
error1:
stw_dev = NULL;
return FALSE;
}
boolean
stw_init_thread(void)
{
return stw_tls_init_thread();
}
void
stw_cleanup_thread(void)
{
stw_tls_cleanup_thread();
}
void
stw_cleanup(void)
{
DHGLRC dhglrc;
debug_printf("%s\n", __FUNCTION__);
if (!stw_dev)
return;
/*
* Abort cleanup if there are still active contexts. In some situations
* this DLL may be unloaded before the DLL that is using GL contexts is.
*/
pipe_mutex_lock( stw_dev->ctx_mutex );
dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
pipe_mutex_unlock( stw_dev->ctx_mutex );
if (dhglrc) {
debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
stw_dev = NULL;
return;
}
handle_table_destroy(stw_dev->ctx_table);
stw_framebuffer_cleanup();
pipe_mutex_destroy( stw_dev->fb_mutex );
pipe_mutex_destroy( stw_dev->ctx_mutex );
stw_dev->screen->destroy(stw_dev->screen);
#ifdef WIN32_THREADS
_glthread_DESTROY_MUTEX(OneTimeLock);
_glapi_destroy_multithread();
#endif
#ifdef DEBUG
debug_memory_end(stw_dev->memdbg_no);
#endif
stw_tls_cleanup();
stw_dev = NULL;
}
struct stw_context *
stw_lookup_context_locked( DHGLRC dhglrc )
{
if (dhglrc == 0)
return NULL;
if (stw_dev == NULL)
return NULL;
return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
}
void APIENTRY
DrvSetCallbackProcs(
INT nProcs,
PROC *pProcs )
{
size_t size;
if (stw_dev == NULL)
return;
size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
memcpy(&stw_dev->callbacks, pProcs, size);
return;
}
BOOL APIENTRY
DrvValidateVersion(
ULONG ulVersion )
{
/* TODO: get the expected version from the winsys */
return ulVersion == 1;
}
|
