src/gallium/state_trackers/wgl/stw_device.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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
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  26  **************************************************************************/
  27
  28 #ifndef STW_DEVICE_H_
  29 #define STW_DEVICE_H_
  30
  31
  32 #include "pipe/p_compiler.h"
  33 #include "util/u_handle_table.h"
  34 #include <GL/gl.h>
  35 #include "gldrv.h"
  36 #include "stw_pixelformat.h"
  37
  38
  39 #define STW_MAX_PIXELFORMATS   256
  40
  41
  42 struct pipe_screen;
  43 struct st_api;
  44 struct st_manager;
  45 struct stw_framebuffer;
  46
  47 struct stw_device
  48 {
  49    const struct stw_winsys *stw_winsys;
  50
  51    struct pipe_screen *screen;
  52
  53    /* Cache some PIPE_CAP_* */
  54    unsigned max_2d_levels;
  55    unsigned max_2d_length;
  56
  57    struct st_api *stapi;
  58    struct st_manager *smapi;
  59
  60    LUID AdapterLuid;
  61
  62    struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
  63    unsigned pixelformat_count;
  64    unsigned pixelformat_extended_count;
  65
  66    struct WGLCALLBACKS callbacks;
  67
  68    CRITICAL_SECTION ctx_mutex;
  69    struct handle_table *ctx_table;
  70
  71    /* TODO: use an atomic counter to track the number of locked
  72     * stw_framebuffer objects.  Assert that the counter is zero when
  73     * trying to lock this mutex.
  74     */
  75    CRITICAL_SECTION fb_mutex;
  76    struct stw_framebuffer *fb_head;
  77
  78 #ifdef DEBUG
  79    unsigned long memdbg_no;
  80 #endif
  81
  82    /** WGL_EXT_swap_control */
  83    int refresh_rate;
  84    int swap_interval;
  85
  86    bool initialized;
  87 };
  88
  89
  90 extern struct stw_device *stw_dev;
  91
  92
  93 static inline struct stw_context *
  94 stw_lookup_context_locked( DHGLRC dhglrc )
  95 {
  96    if (dhglrc == 0 || stw_dev == NULL)
  97       return NULL;
  98    return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
  99 }
 100
 101
 102 static inline void
 103 stw_lock_contexts(struct stw_device *stw_dev)
 104 {
 105    EnterCriticalSection(&stw_dev->ctx_mutex);
 106 }
 107
 108
 109 static inline void
 110 stw_unlock_contexts(struct stw_device *stw_dev)
 111 {
 112    LeaveCriticalSection(&stw_dev->ctx_mutex);
 113 }
 114
 115
 116 static inline void
 117 stw_lock_framebuffers(struct stw_device *stw_dev)
 118 {
 119    EnterCriticalSection(&stw_dev->fb_mutex);
 120 }
 121
 122
 123 static inline void
 124 stw_unlock_framebuffers(struct stw_device *stw_dev)
 125 {
 126    LeaveCriticalSection(&stw_dev->fb_mutex);
 127 }
 128
 129
 130 #endif /* STW_DEVICE_H_ */