src/gallium/state_trackers/wgl/stw_device.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
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   7  * copy of this software and associated documentation files (the
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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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 "stw_icd.h"
  35 #include "stw_pixelformat.h"
  36
  37
  38 #define STW_MAX_PIXELFORMATS   256
  39
  40
  41 struct pipe_screen;
  42 struct st_api;
  43 struct st_manager;
  44 struct stw_framebuffer;
  45
  46 struct stw_device
  47 {
  48    const struct stw_winsys *stw_winsys;
  49
  50    struct pipe_screen *screen;
  51
  52    /* Cache some PIPE_CAP_* */
  53    unsigned max_2d_levels;
  54    unsigned max_2d_length;
  55
  56    struct st_api *stapi;
  57    struct st_manager *smapi;
  58
  59    LUID AdapterLuid;
  60
  61    struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
  62    unsigned pixelformat_count;
  63    unsigned pixelformat_extended_count;
  64
  65    GLCALLBACKTABLE callbacks;
  66
  67    CRITICAL_SECTION ctx_mutex;
  68    struct handle_table *ctx_table;
  69
  70    /* TODO: use an atomic counter to track the number of locked
  71     * stw_framebuffer objects.  Assert that the counter is zero when
  72     * trying to lock this mutex.
  73     */
  74    CRITICAL_SECTION fb_mutex;
  75    struct stw_framebuffer *fb_head;
  76
  77 #ifdef DEBUG
  78    unsigned long memdbg_no;
  79 #endif
  80
  81    /** WGL_EXT_swap_control */
  82    int refresh_rate;
  83    int swap_interval;
  84
  85    bool initialized;
  86 };
  87
  88
  89 extern struct stw_device *stw_dev;
  90
  91
  92 static inline struct stw_context *
  93 stw_lookup_context_locked( DHGLRC dhglrc )
  94 {
  95    if (dhglrc == 0 || stw_dev == NULL)
  96       return NULL;
  97    return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
  98 }
  99
 100
 101 static inline void
 102 stw_lock_contexts(struct stw_device *stw_dev)
 103 {
 104    EnterCriticalSection(&stw_dev->ctx_mutex);
 105 }
 106
 107
 108 static inline void
 109 stw_unlock_contexts(struct stw_device *stw_dev)
 110 {
 111    LeaveCriticalSection(&stw_dev->ctx_mutex);
 112 }
 113
 114
 115 static inline void
 116 stw_lock_framebuffers(struct stw_device *stw_dev)
 117 {
 118    EnterCriticalSection(&stw_dev->fb_mutex);
 119 }
 120
 121
 122 static inline void
 123 stw_unlock_framebuffers(struct stw_device *stw_dev)
 124 {
 125    LeaveCriticalSection(&stw_dev->fb_mutex);
 126 }
 127
 128
 129 #endif /* STW_DEVICE_H_ */