src/egl/main/egldriver.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 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    _EGLAPI API;  /**< EGL API dispatch table */
  84 };
  85
  86
  87 extern _EGLDriver*
  88 _eglBuiltInDriver(void);
  89
  90
  91 extern _EGLDriver *
  92 _eglMatchDriver(_EGLDisplay *dpy, EGLBoolean test_only);
  93
  94
  95 extern __eglMustCastToProperFunctionPointerType
  96 _eglGetDriverProc(const char *procname);
  97
  98
  99 extern void
 100 _eglUnloadDrivers(void);
 101
 102
 103 /* defined in eglfallbacks.c */
 104 extern void
 105 _eglInitDriverFallbacks(_EGLDriver *drv);
 106
 107
 108 extern void
 109 _eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
 110                       void *callback_data);
 111
 112
 113 #ifdef __cplusplus
 114 }
 115 #endif
 116
 117
 118 #endif /* EGLDRIVER_INCLUDED */