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  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 EGLDRIVER_INCLUDED
  32. #define EGLDRIVER_INCLUDED
  33.  
  34.  
  35. #include "c99_compat.h"
  36.  
  37. #include "egltypedefs.h"
  38. #include "eglapi.h"
  39. #include <stddef.h>
  40.  
  41.  
  42. #ifdef __cplusplus
  43. extern "C" {
  44. #endif
  45.  
  46. /**
  47.  * Define an inline driver typecast function.
  48.  *
  49.  * Note that this macro defines a function and should not be ended with a
  50.  * semicolon when used.
  51.  */
  52. #define _EGL_DRIVER_TYPECAST(drvtype, egltype, code)           \
  53.    static inline struct drvtype *drvtype(const egltype *obj)   \
  54.    { return (struct drvtype *) code; }
  55.  
  56.  
  57. /**
  58.  * Define the driver typecast functions for _EGLDriver, _EGLDisplay,
  59.  * _EGLContext, _EGLSurface, and _EGLConfig.
  60.  *
  61.  * Note that this macro defines several functions and should not be ended with
  62.  * a semicolon when used.
  63.  */
  64. #define _EGL_DRIVER_STANDARD_TYPECASTS(drvname)                            \
  65.    _EGL_DRIVER_TYPECAST(drvname ## _driver, _EGLDriver, obj)               \
  66.    /* note that this is not a direct cast */                               \
  67.    _EGL_DRIVER_TYPECAST(drvname ## _display, _EGLDisplay, obj->DriverData) \
  68.    _EGL_DRIVER_TYPECAST(drvname ## _context, _EGLContext, obj)             \
  69.    _EGL_DRIVER_TYPECAST(drvname ## _surface, _EGLSurface, obj)             \
  70.    _EGL_DRIVER_TYPECAST(drvname ## _config, _EGLConfig, obj)
  71.  
  72.  
  73. typedef _EGLDriver *(*_EGLMain_t)(const char *args);
  74.  
  75.  
  76. /**
  77.  * Base class for device drivers.
  78.  */
  79. struct _egl_driver
  80. {
  81.    const char *Name;  /**< name of this driver */
  82.  
  83.    /**
  84.     * Release the driver resource.
  85.     *
  86.     * It is called before dlclose().
  87.     */
  88.    void (*Unload)(_EGLDriver *drv);
  89.  
  90.    _EGLAPI API;  /**< EGL API dispatch table */
  91. };
  92.  
  93.  
  94. extern _EGLDriver *
  95. _eglBuiltInDriverDRI2(const char *args);
  96.  
  97.  
  98. extern _EGLDriver*
  99. _eglBuiltInDriverHaiku(const char* args);
  100.  
  101.  
  102. extern _EGLDriver *
  103. _eglMatchDriver(_EGLDisplay *dpy, EGLBoolean test_only);
  104.  
  105.  
  106. extern __eglMustCastToProperFunctionPointerType
  107. _eglGetDriverProc(const char *procname);
  108.  
  109.  
  110. extern void
  111. _eglUnloadDrivers(void);
  112.  
  113.  
  114. /* defined in eglfallbacks.c */
  115. extern void
  116. _eglInitDriverFallbacks(_EGLDriver *drv);
  117.  
  118.  
  119. extern void
  120. _eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
  121.                       void *callback_data);
  122.  
  123.  
  124. #ifdef __cplusplus
  125. }
  126. #endif
  127.  
  128.  
  129. #endif /* EGLDRIVER_INCLUDED */
  130.