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
43extern "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/**
74 * Base class for device drivers.
75 */
76struct _egl_driver
77{
78   _EGLAPI API;  /**< EGL API dispatch table */
79};
80
81
82extern void
83_eglInitDriver(_EGLDriver *driver);
84
85
86extern _EGLDriver *
87_eglMatchDriver(_EGLDisplay *disp);
88
89
90extern __eglMustCastToProperFunctionPointerType
91_eglGetDriverProc(const char *procname);
92
93
94extern void
95_eglUnloadDrivers(void);
96
97
98/* defined in eglfallbacks.c */
99extern void
100_eglInitDriverFallbacks(_EGLDriver *drv);
101
102
103extern void
104_eglSearchPathForEach(EGLBoolean (*callback)(const char *, size_t, void *),
105                      void *callback_data);
106
107
108#ifdef __cplusplus
109}
110#endif
111
112
113#endif /* EGLDRIVER_INCLUDED */
114