src/gallium/frontends/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:
  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
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  25  *
  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    CRITICAL_SECTION screen_mutex;
  52    bool screen_initialized;
  53    struct pipe_screen *screen;
  54
  55    /* Cache some PIPE_CAP_* */
  56    unsigned max_2d_length;
  57
  58    struct st_api *stapi;
  59    struct st_manager *smapi;
  60
  61    LUID AdapterLuid;
  62
  63    struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
  64    unsigned pixelformat_count;
  65    unsigned pixelformat_extended_count;
  66
  67    struct WGLCALLBACKS callbacks;
  68
  69    CRITICAL_SECTION ctx_mutex;
  70    struct handle_table *ctx_table;
  71
  72    /* TODO: use an atomic counter to track the number of locked
  73     * stw_framebuffer objects.  Assert that the counter is zero when
  74     * trying to lock this mutex.
  75     */
  76    CRITICAL_SECTION fb_mutex;
  77    struct stw_framebuffer *fb_head;
  78
  79 #ifdef DEBUG
  80    unsigned long memdbg_no;
  81 #endif
  82
  83    /** WGL_EXT_swap_control */
  84    int refresh_rate;
  85    int swap_interval;
  86
  87    bool initialized;
  88 };
  89
  90
  91 extern struct stw_device *stw_dev;
  92
  93 boolean
  94 stw_init_screen(void);
  95
  96 static inline struct stw_context *
  97 stw_lookup_context_locked( DHGLRC dhglrc )
  98 {
  99    if (dhglrc == 0 || stw_dev == NULL)
 100       return NULL;
 101    return (struct stw_context *) handle_table_get(stw_dev->ctx_table, dhglrc);
 102 }
 103
 104
 105 static inline void
 106 stw_lock_contexts(struct stw_device *stw_dev)
 107 {
 108    EnterCriticalSection(&stw_dev->ctx_mutex);
 109 }
 110
 111
 112 static inline void
 113 stw_unlock_contexts(struct stw_device *stw_dev)
 114 {
 115    LeaveCriticalSection(&stw_dev->ctx_mutex);
 116 }
 117
 118
 119 static inline void
 120 stw_lock_framebuffers(struct stw_device *stw_dev)
 121 {
 122    EnterCriticalSection(&stw_dev->fb_mutex);
 123 }
 124
 125
 126 static inline void
 127 stw_unlock_framebuffers(struct stw_device *stw_dev)
 128 {
 129    LeaveCriticalSection(&stw_dev->fb_mutex);
 130 }
 131
 132
 133 #endif /* STW_DEVICE_H_ */