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#ifndef STW_DEVICE_H_
29#define STW_DEVICE_H_
30
31
32#include "pipe/p_compiler.h"
33#include "frontend/api.h"
34#include "util/u_handle_table.h"
35#include "util/u_dynarray.h"
36#include "util/xmlconfig.h"
37#include <GL/gl.h>
38#include "gldrv.h"
39#include "stw_pixelformat.h"
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
45struct pipe_screen;
46struct st_api;
47struct st_manager;
48struct stw_framebuffer;
49
50struct stw_device
51{
52   const struct stw_winsys *stw_winsys;
53
54   CRITICAL_SECTION screen_mutex;
55   bool screen_initialized;
56   struct pipe_screen *screen;
57
58   /* Cache some PIPE_CAP_* */
59   unsigned max_2d_length;
60
61   struct st_api *stapi;
62   struct st_manager *smapi;
63
64   LUID AdapterLuid;
65
66   struct util_dynarray pixelformats;
67   unsigned pixelformat_count;
68
69   struct WGLCALLBACKS callbacks;
70
71   CRITICAL_SECTION ctx_mutex;
72   struct handle_table *ctx_table;
73
74   /* TODO: use an atomic counter to track the number of locked
75    * stw_framebuffer objects.  Assert that the counter is zero when
76    * trying to lock this mutex.
77    */
78   CRITICAL_SECTION fb_mutex;
79   struct stw_framebuffer *fb_head;
80
81#ifdef DEBUG
82   unsigned long memdbg_no;
83#endif
84
85   /** WGL_EXT_swap_control */
86   int refresh_rate;
87   int swap_interval;
88
89   driOptionCache option_cache;
90   driOptionCache option_info;
91   struct st_config_options st_options;
92
93   bool initialized;
94};
95
96
97extern struct stw_device *stw_dev;
98
99boolean
100stw_init_screen(HDC hdc);
101
102struct stw_device *
103stw_get_device(void);
104
105static inline struct stw_context *
106stw_lookup_context_locked( DHGLRC dhglrc )
107{
108   if (dhglrc == 0 || stw_dev == NULL)
109      return NULL;
110   return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
111}
112
113
114static inline void
115stw_lock_contexts(struct stw_device *stw_dev)
116{
117   EnterCriticalSection(&stw_dev->ctx_mutex);
118}
119
120
121static inline void
122stw_unlock_contexts(struct stw_device *stw_dev)
123{
124   LeaveCriticalSection(&stw_dev->ctx_mutex);
125}
126
127static inline struct stw_context *
128stw_lookup_context( DHGLRC dhglrc )
129{
130   struct stw_context *ret;
131   stw_lock_contexts(stw_dev);
132   ret = stw_lookup_context_locked(dhglrc);
133   stw_unlock_contexts(stw_dev);
134   return ret;
135}
136
137
138static inline void
139stw_lock_framebuffers(struct stw_device *stw_dev)
140{
141   EnterCriticalSection(&stw_dev->fb_mutex);
142}
143
144
145static inline void
146stw_unlock_framebuffers(struct stw_device *stw_dev)
147{
148   LeaveCriticalSection(&stw_dev->fb_mutex);
149}
150
151#ifdef __cplusplus
152}
153#endif
154
155#endif /* STW_DEVICE_H_ */
156