1/**************************************************************************
2 *
3 * Copyright 2008 VMware, Inc.
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 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.
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 "util/u_driconf.h"
35#include "util/driconf.h"
36#include "pipe/p_screen.h"
37
38#include "stw_device.h"
39#include "stw_winsys.h"
40#include "stw_pixelformat.h"
41#include "gldrv.h"
42#include "stw_tls.h"
43#include "stw_framebuffer.h"
44#include "stw_st.h"
45
46
47struct stw_device *stw_dev = NULL;
48
49static int
50stw_get_param(struct st_manager *smapi,
51              enum st_manager_param param)
52{
53   switch (param) {
54   case ST_MANAGER_BROKEN_INVALIDATE:
55      /*
56       * Force framebuffer validation on glViewport.
57       *
58       * Certain applications, like Rhinoceros 4, uses glReadPixels
59       * exclusively (never uses SwapBuffers), so framebuffers never get
60       * resized unless we check on glViewport.
61       */
62      return 1;
63   default:
64      return 0;
65   }
66}
67
68
69/** Get the refresh rate for the monitor, in Hz */
70static int
71get_refresh_rate(void)
72{
73   DEVMODE devModes;
74
75   if (EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &devModes)) {
76      /* clamp the value, just in case we get garbage */
77      return CLAMP(devModes.dmDisplayFrequency, 30, 120);
78   }
79   else {
80      /* reasonable default */
81      return 60;
82   }
83}
84
85static bool
86init_screen(const struct stw_winsys *stw_winsys, HDC hdc)
87{
88   struct pipe_screen *screen = stw_winsys->create_screen(hdc);
89   if (!screen)
90      return false;
91
92   if (stw_winsys->get_adapter_luid)
93      stw_winsys->get_adapter_luid(screen, hdc, &stw_dev->AdapterLuid);
94
95   stw_dev->smapi->screen = screen;
96   stw_dev->screen = screen;
97
98   stw_dev->max_2d_length = screen->get_param(screen,
99                                              PIPE_CAP_MAX_TEXTURE_2D_SIZE);
100   return true;
101}
102
103static void
104init_options()
105{
106   const driOptionDescription gallium_driconf[] = {
107      #include "pipe-loader/driinfo_gallium.h"
108   };
109
110   const char *driver_name = stw_dev->stw_winsys->get_name ? stw_dev->stw_winsys->get_name() : NULL;
111   driParseOptionInfo(&stw_dev->option_info, gallium_driconf, ARRAY_SIZE(gallium_driconf));
112   driParseConfigFiles(&stw_dev->option_cache, &stw_dev->option_info, 0,
113      driver_name ? driver_name : "", NULL, NULL, NULL, 0, NULL, 0);
114
115   u_driconf_fill_st_options(&stw_dev->st_options, &stw_dev->option_cache);
116}
117
118boolean
119stw_init(const struct stw_winsys *stw_winsys)
120{
121   static struct stw_device stw_dev_storage;
122
123   debug_disable_error_message_boxes();
124
125   assert(!stw_dev);
126
127   stw_tls_init();
128
129   stw_dev = &stw_dev_storage;
130   memset(stw_dev, 0, sizeof(*stw_dev));
131
132   stw_dev->stw_winsys = stw_winsys;
133
134   stw_dev->stapi = stw_st_create_api();
135   stw_dev->smapi = CALLOC_STRUCT(st_manager);
136   if (!stw_dev->stapi || !stw_dev->smapi)
137      goto error1;
138
139   stw_dev->smapi->get_param = stw_get_param;
140
141   InitializeCriticalSection(&stw_dev->screen_mutex);
142   InitializeCriticalSection(&stw_dev->ctx_mutex);
143   InitializeCriticalSection(&stw_dev->fb_mutex);
144
145   stw_dev->ctx_table = handle_table_create();
146   if (!stw_dev->ctx_table) {
147      goto error1;
148   }
149
150   /* env var override for WGL_EXT_swap_control, useful for testing/debugging */
151   const char *s = os_get_option("WGL_SWAP_INTERVAL");
152   if (s) {
153      stw_dev->swap_interval = atoi(s);
154   }
155   stw_dev->refresh_rate = get_refresh_rate();
156
157   stw_dev->initialized = true;
158
159   return TRUE;
160
161error1:
162   FREE(stw_dev->smapi);
163   if (stw_dev->stapi)
164      stw_dev->stapi->destroy(stw_dev->stapi);
165
166   stw_dev = NULL;
167   return FALSE;
168}
169
170boolean
171stw_init_screen(HDC hdc)
172{
173   EnterCriticalSection(&stw_dev->screen_mutex);
174
175   if (!stw_dev->screen_initialized) {
176      stw_dev->screen_initialized = true;
177      if (!init_screen(stw_dev->stw_winsys, hdc)) {
178         LeaveCriticalSection(&stw_dev->screen_mutex);
179         return false;
180      }
181      init_options();
182      stw_pixelformat_init();
183   }
184
185   LeaveCriticalSection(&stw_dev->screen_mutex);
186   return stw_dev->screen != NULL;
187}
188
189struct stw_device *
190stw_get_device(void)
191{
192   return stw_dev;
193}
194
195boolean
196stw_init_thread(void)
197{
198   return stw_tls_init_thread();
199}
200
201
202void
203stw_cleanup_thread(void)
204{
205   stw_tls_cleanup_thread();
206}
207
208
209void
210stw_cleanup(void)
211{
212   DHGLRC dhglrc;
213
214   debug_printf("%s\n", __FUNCTION__);
215
216   if (!stw_dev)
217      return;
218
219   /*
220    * Abort cleanup if there are still active contexts. In some situations
221    * this DLL may be unloaded before the DLL that is using GL contexts is.
222    */
223   stw_lock_contexts(stw_dev);
224   dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
225   stw_unlock_contexts(stw_dev);
226   if (dhglrc) {
227      debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
228      stw_dev = NULL;
229      return;
230   }
231
232   free(stw_dev->st_options.force_gl_vendor);
233   free(stw_dev->st_options.force_gl_renderer);
234   driDestroyOptionCache(&stw_dev->option_cache);
235   driDestroyOptionInfo(&stw_dev->option_info);
236
237   handle_table_destroy(stw_dev->ctx_table);
238
239   stw_framebuffer_cleanup();
240
241   DeleteCriticalSection(&stw_dev->fb_mutex);
242   DeleteCriticalSection(&stw_dev->ctx_mutex);
243   DeleteCriticalSection(&stw_dev->screen_mutex);
244
245   if (stw_dev->smapi->destroy)
246      stw_dev->smapi->destroy(stw_dev->smapi);
247
248   FREE(stw_dev->smapi);
249   stw_dev->stapi->destroy(stw_dev->stapi);
250
251   stw_dev->screen->destroy(stw_dev->screen);
252
253   /* glapi is statically linked: we can call the local destroy function. */
254#ifdef _GLAPI_NO_EXPORTS
255   _glapi_destroy_multithread();
256#endif
257
258   stw_tls_cleanup();
259
260   util_dynarray_fini(&stw_dev->pixelformats);
261
262   stw_dev = NULL;
263}
264
265
266void APIENTRY
267DrvSetCallbackProcs(INT nProcs, PROC *pProcs)
268{
269   size_t size;
270
271   if (stw_dev == NULL)
272      return;
273
274   size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
275   memcpy(&stw_dev->callbacks, pProcs, size);
276
277   return;
278}
279
280
281BOOL APIENTRY
282DrvValidateVersion(ULONG ulVersion)
283{
284   /* ulVersion is the version reported by the KMD:
285    * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,
286    * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD
287    *   versions match.
288    *
289    * We should get the expected version number from the winsys, but for now
290    * ignore it.
291    */
292   (void)ulVersion;
293   return TRUE;
294}
295