stw_device.c revision e475ae920a4f6026b78b0bbe80c83cf4060f610e 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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 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.
25 *
26 **************************************************************************/
27
28#include <windows.h>
29
30#include "glapi/glthread.h"
31#include "util/u_debug.h"
32#include "util/u_math.h"
33#include "pipe/p_screen.h"
34#include "state_tracker/st_public.h"
35
36#ifdef DEBUG
37#include "trace/tr_screen.h"
38#include "trace/tr_texture.h"
39#endif
40
41#include "stw_device.h"
42#include "stw_winsys.h"
43#include "stw_pixelformat.h"
44#include "stw_icd.h"
45#include "stw_tls.h"
46#include "stw_framebuffer.h"
47
48#ifdef WIN32_THREADS
49extern _glthread_Mutex OneTimeLock;
50extern void FreeAllTSD(void);
51#endif
52
53
54struct stw_device *stw_dev = NULL;
55
56
57/**
58 * XXX: Dispatch pipe_screen::flush_front_buffer to our
59 * stw_winsys::flush_front_buffer.
60 */
61static void
62stw_flush_frontbuffer(struct pipe_screen *screen,
63                     struct pipe_surface *surface,
64                     void *context_private )
65{
66   HDC hdc = (HDC)context_private;
67   struct stw_framebuffer *fb;
68
69   fb = stw_framebuffer_from_hdc( hdc );
70   if (!fb) {
71      /* fb can be NULL if window was destroyed already */
72      return;
73   }
74
75   stw_framebuffer_present_locked(hdc, fb, surface);
76}
77
78
79boolean
80stw_init(const struct stw_winsys *stw_winsys)
81{
82   static struct stw_device stw_dev_storage;
83   struct pipe_screen *screen;
84
85   debug_printf("%s\n", __FUNCTION__);
86
87   assert(!stw_dev);
88
89   stw_tls_init();
90
91   stw_dev = &stw_dev_storage;
92   memset(stw_dev, 0, sizeof(*stw_dev));
93
94#ifdef DEBUG
95   stw_dev->memdbg_no = debug_memory_begin();
96#endif
97
98   stw_dev->stw_winsys = stw_winsys;
99
100#ifdef WIN32_THREADS
101   _glthread_INIT_MUTEX(OneTimeLock);
102#endif
103
104   screen = stw_winsys->create_screen();
105   if(!screen)
106      goto error1;
107
108   if(stw_winsys->get_adapter_luid)
109      stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
110
111#ifdef DEBUG
112   stw_dev->screen = trace_screen_create(screen);
113   stw_dev->trace_running = stw_dev->screen != screen ? TRUE : FALSE;
114#else
115   stw_dev->screen = screen;
116#endif
117
118   stw_dev->screen->flush_frontbuffer = &stw_flush_frontbuffer;
119
120   pipe_mutex_init( stw_dev->ctx_mutex );
121   pipe_mutex_init( stw_dev->fb_mutex );
122
123   stw_dev->ctx_table = handle_table_create();
124   if (!stw_dev->ctx_table) {
125      goto error1;
126   }
127
128   stw_pixelformat_init();
129
130   return TRUE;
131
132error1:
133   stw_dev = NULL;
134   return FALSE;
135}
136
137
138boolean
139stw_init_thread(void)
140{
141   return stw_tls_init_thread();
142}
143
144
145void
146stw_cleanup_thread(void)
147{
148   stw_tls_cleanup_thread();
149}
150
151
152void
153stw_cleanup(void)
154{
155   DHGLRC dhglrc;
156
157   debug_printf("%s\n", __FUNCTION__);
158
159   if (!stw_dev)
160      return;
161
162   /*
163    * Abort cleanup if there are still active contexts. In some situations
164    * this DLL may be unloaded before the DLL that is using GL contexts is.
165    */
166   pipe_mutex_lock( stw_dev->ctx_mutex );
167   dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
168   pipe_mutex_unlock( stw_dev->ctx_mutex );
169   if (dhglrc) {
170      debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
171      return;
172   }
173
174   handle_table_destroy(stw_dev->ctx_table);
175
176   stw_framebuffer_cleanup();
177
178   pipe_mutex_destroy( stw_dev->fb_mutex );
179   pipe_mutex_destroy( stw_dev->ctx_mutex );
180
181   stw_dev->screen->destroy(stw_dev->screen);
182
183#ifdef WIN32_THREADS
184   _glthread_DESTROY_MUTEX(OneTimeLock);
185   FreeAllTSD();
186#endif
187
188#ifdef DEBUG
189   debug_memory_end(stw_dev->memdbg_no);
190#endif
191
192   stw_tls_cleanup();
193
194   stw_dev = NULL;
195}
196
197
198struct stw_context *
199stw_lookup_context_locked( DHGLRC dhglrc )
200{
201   if (dhglrc == 0)
202      return NULL;
203
204   if (stw_dev == NULL)
205      return NULL;
206
207   return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
208}
209
210
211void APIENTRY
212DrvSetCallbackProcs(
213   INT nProcs,
214   PROC *pProcs )
215{
216   size_t size;
217
218   if (stw_dev == NULL)
219      return;
220
221   size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
222   memcpy(&stw_dev->callbacks, pProcs, size);
223
224   return;
225}
226
227
228BOOL APIENTRY
229DrvValidateVersion(
230   ULONG ulVersion )
231{
232   /* TODO: get the expected version from the winsys */
233   return ulVersion == 1;
234}
235