1 /************************************************************************** 2 * 3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 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 "egltypedefs.h" 36 #include "eglapi.h" 37 #include <stddef.h> 38 39 /** 40 * Define an inline driver typecast function. 41 * 42 * Note that this macro defines a function and should not be ended with a 43 * semicolon when used. 44 */ 45 #define _EGL_DRIVER_TYPECAST(drvtype, egltype, code) \ 46 static INLINE struct drvtype *drvtype(const egltype *obj) \ 47 { return (struct drvtype *) code; } 48 49 50 /** 51 * Define the driver typecast functions for _EGLDriver, _EGLDisplay, 52 * _EGLContext, _EGLSurface, and _EGLConfig. 53 * 54 * Note that this macro defines several functions and should not be ended with 55 * a semicolon when used. 56 */ 57 #define _EGL_DRIVER_STANDARD_TYPECASTS(drvname) \ 58 _EGL_DRIVER_TYPECAST(drvname ## _driver, _EGLDriver, obj) \ 59 /* note that this is not a direct cast */ \ 60 _EGL_DRIVER_TYPECAST(drvname ## _display, _EGLDisplay, obj->DriverData) \ 61 _EGL_DRIVER_TYPECAST(drvname ## _context, _EGLContext, obj) \ 62 _EGL_DRIVER_TYPECAST(drvname ## _surface, _EGLSurface, obj) \ 63 _EGL_DRIVER_TYPECAST(drvname ## _config, _EGLConfig, obj) 64 65 66 typedef _EGLDriver *(*_EGLMain_t)(const char *args); 67 68 69 /** 70 * Base class for device drivers. 71 */ 72 struct _egl_driver 73 { 74 const char *Name; /**< name of this driver */ 75 76 /** 77 * Release the driver resource. 78 * 79 * It is called before dlclose(). 80 */ 81 void (*Unload)(_EGLDriver *drv); 82 83 _EGLAPI API; /**< EGL API dispatch table */ 84 }; 85 86 87 extern _EGLDriver * 88 _eglBuiltInDriverGALLIUM(const char *args); 89 90 91 extern _EGLDriver * 92 _eglBuiltInDriverDRI2(const char *args); 93 94 95 extern _EGLDriver * 96 _eglBuiltInDriverGLX(const char *args); 97 98 99 PUBLIC _EGLDriver * 100 _eglMain(const char *args); 101 102 103 extern _EGLDriver * 104 _eglMatchDriver(_EGLDisplay *dpy, EGLBoolean test_only); 105 106 107 extern __eglMustCastToProperFunctionPointerType 108 _eglGetDriverProc(const char *procname); 109 110 111 extern void 112 _eglUnloadDrivers(void); 113 114 115 /* defined in eglfallbacks.c */ 116 PUBLIC void 117 _eglInitDriverFallbacks(_EGLDriver *drv); 118 119 120 PUBLIC void 121 _eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *), 122 void *callback_data); 123 124 125 #endif /* EGLDRIVER_INCLUDED */ 126