stw_device.c revision 0ffd603e17fd489886b47c5fec4624a589a13c10 
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/glapi.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"
35
36#include "stw_device.h"
37#include "stw_winsys.h"
38#include "stw_pixelformat.h"
39#include "stw_icd.h"
40#include "stw_tls.h"
41#include "stw_framebuffer.h"
42#include "stw_st.h"
43
44
45struct stw_device *stw_dev = NULL;
46
47static int
48stw_get_param(struct st_manager *smapi,
49              enum st_manager_param param)
50{
51   switch (param) {
52   case ST_MANAGER_BROKEN_INVALIDATE:
53      /*
54       * Force framebuffer validation on glViewport.
55       *
56       * Certain applications, like Rhinoceros 4, uses glReadPixels
57       * exclusively (never uses SwapBuffers), so framebuffers never get
58       * resized unless we check on glViewport.
59       */
60      return 1;
61   default:
62      return 0;
63   }
64}
65
66boolean
67stw_init(const struct stw_winsys *stw_winsys)
68{
69   static struct stw_device stw_dev_storage;
70   struct pipe_screen *screen;
71
72   debug_printf("%s\n", __FUNCTION__);
73
74   assert(!stw_dev);
75
76   stw_tls_init();
77
78   stw_dev = &stw_dev_storage;
79   memset(stw_dev, 0, sizeof(*stw_dev));
80
81#ifdef DEBUG
82   stw_dev->memdbg_no = debug_memory_begin();
83#endif
84
85   stw_dev->stw_winsys = stw_winsys;
86
87   stw_dev->stapi = stw_st_create_api();
88   stw_dev->smapi = CALLOC_STRUCT(st_manager);
89   if (!stw_dev->stapi || !stw_dev->smapi)
90      goto error1;
91
92   screen = stw_winsys->create_screen();
93   if(!screen)
94      goto error1;
95
96   if(stw_winsys->get_adapter_luid)
97      stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
98
99   stw_dev->smapi->screen = screen;
100   stw_dev->smapi->get_param = stw_get_param;
101   stw_dev->screen = screen;
102
103   stw_dev->max_2d_levels =
104         screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
105   stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1);
106
107   pipe_mutex_init( stw_dev->ctx_mutex );
108   pipe_mutex_init( stw_dev->fb_mutex );
109
110   stw_dev->ctx_table = handle_table_create();
111   if (!stw_dev->ctx_table) {
112      goto error1;
113   }
114
115   stw_pixelformat_init();
116
117   return TRUE;
118
119error1:
120   if (stw_dev->smapi)
121      FREE(stw_dev->smapi);
122   if (stw_dev->stapi)
123      stw_dev->stapi->destroy(stw_dev->stapi);
124
125   stw_dev = NULL;
126   return FALSE;
127}
128
129
130boolean
131stw_init_thread(void)
132{
133   return stw_tls_init_thread();
134}
135
136
137void
138stw_cleanup_thread(void)
139{
140   stw_tls_cleanup_thread();
141}
142
143
144void
145stw_cleanup(void)
146{
147   DHGLRC dhglrc;
148
149   debug_printf("%s\n", __FUNCTION__);
150
151   if (!stw_dev)
152      return;
153
154   /*
155    * Abort cleanup if there are still active contexts. In some situations
156    * this DLL may be unloaded before the DLL that is using GL contexts is.
157    */
158   pipe_mutex_lock( stw_dev->ctx_mutex );
159   dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
160   pipe_mutex_unlock( stw_dev->ctx_mutex );
161   if (dhglrc) {
162      debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
163      stw_dev = NULL;
164      return;
165   }
166
167   handle_table_destroy(stw_dev->ctx_table);
168
169   stw_framebuffer_cleanup();
170
171   pipe_mutex_destroy( stw_dev->fb_mutex );
172   pipe_mutex_destroy( stw_dev->ctx_mutex );
173
174   FREE(stw_dev->smapi);
175   stw_dev->stapi->destroy(stw_dev->stapi);
176
177   stw_dev->screen->destroy(stw_dev->screen);
178
179   /* glapi is statically linked: we can call the local destroy function. */
180#ifdef _GLAPI_NO_EXPORTS
181   _glapi_destroy_multithread();
182#endif
183
184#ifdef DEBUG
185   debug_memory_end(stw_dev->memdbg_no);
186#endif
187
188   stw_tls_cleanup();
189
190   stw_dev = NULL;
191}
192
193
194struct stw_context *
195stw_lookup_context_locked( DHGLRC dhglrc )
196{
197   if (dhglrc == 0)
198      return NULL;
199
200   if (stw_dev == NULL)
201      return NULL;
202
203   return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
204}
205
206
207void APIENTRY
208DrvSetCallbackProcs(
209   INT nProcs,
210   PROC *pProcs )
211{
212   size_t size;
213
214   if (stw_dev == NULL)
215      return;
216
217   size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
218   memcpy(&stw_dev->callbacks, pProcs, size);
219
220   return;
221}
222
223
224BOOL APIENTRY
225DrvValidateVersion(
226   ULONG ulVersion )
227{
228   /* TODO: get the expected version from the winsys */
229   return ulVersion == 1;
230}
231