src/egl/main/eglglobals.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
   5  * Copyright 2010-2011 LunarG, Inc.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  23  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26  * DEALINGS IN THE SOFTWARE.
  27  *
  28  **************************************************************************/
  29
  30
  31 #ifndef EGLGLOBALS_INCLUDED
  32 #define EGLGLOBALS_INCLUDED
  33
  34 #include <stdbool.h>
  35 #include "c11/threads.h"
  36
  37 #include "egltypedefs.h"
  38
  39 enum
  40 {
  41     _EGL_DEBUG_BIT_CRITICAL = 0x1,
  42     _EGL_DEBUG_BIT_ERROR = 0x2,
  43     _EGL_DEBUG_BIT_WARN = 0x4,
  44     _EGL_DEBUG_BIT_INFO = 0x8,
  45 };
  46
  47 /**
  48  * Global library data
  49  */
  50 struct _egl_global
  51 {
  52    mtx_t *Mutex;
  53
  54    /* the list of all displays */
  55    _EGLDisplay *DisplayList;
  56
  57    _EGLDevice *DeviceList;
  58
  59    EGLint NumAtExitCalls;
  60    void (*AtExitCalls[10])(void);
  61
  62    /*
  63     * Under libglvnd, the client extension string has to be split into two
  64     * strings, one for platform extensions, and one for everything else. So,
  65     * define separate strings for them. _eglGetClientExtensionString will
  66     * concatenate them together for a non-libglvnd build.
  67     */
  68    const char *ClientOnlyExtensionString;
  69    const char *PlatformExtensionString;
  70    char *ClientExtensionString;
  71
  72    EGLDEBUGPROCKHR debugCallback;
  73    unsigned int debugTypesEnabled;
  74 };
  75
  76
  77 extern struct _egl_global _eglGlobal;
  78
  79
  80 extern void
  81 _eglAddAtExitCall(void (*func)(void));
  82
  83 static inline unsigned int DebugBitFromType(EGLenum type)
  84 {
  85    assert(type >= EGL_DEBUG_MSG_CRITICAL_KHR && type <= EGL_DEBUG_MSG_INFO_KHR);
  86    return (1 << (type - EGL_DEBUG_MSG_CRITICAL_KHR));
  87 }
  88
  89 extern const char *
  90 _eglGetClientExtensionString(void);
  91
  92 /**
  93  * Perform validity checks on a generic pointer.
  94  */
  95 extern EGLBoolean
  96 _eglPointerIsDereferencable(void *p);
  97
  98 #endif /* EGLGLOBALS_INCLUDED */