1 /**************************************************************************
2 *
3 * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29 #ifndef EGLCURRENT_INCLUDED
30 #define EGLCURRENT_INCLUDED
31
32
33 #include "egltypedefs.h"
34
35
36 #define _EGL_API_ALL_BITS \
37 (EGL_OPENGL_ES_BIT | \
38 EGL_OPENVG_BIT | \
39 EGL_OPENGL_ES2_BIT | \
40 EGL_OPENGL_BIT)
41
42
43 #define _EGL_API_FIRST_API EGL_OPENGL_ES_API
44 #define _EGL_API_LAST_API EGL_OPENGL_API
45 #define _EGL_API_NUM_APIS (_EGL_API_LAST_API - _EGL_API_FIRST_API + 1)
46
47
48 /**
49 * Per-thread info
50 */
51 struct _egl_thread_info
52 {
53 EGLint LastError;
54 _EGLContext *CurrentContexts[_EGL_API_NUM_APIS];
55 /* use index for fast access to current context */
56 EGLint CurrentAPIIndex;
57 };
58
59
60 /**
61 * Return true if a client API enum is recognized.
62 */
63 static INLINE EGLBoolean
_eglIsApiValid(EGLenum api)64 _eglIsApiValid(EGLenum api)
65 {
66 return (api >= _EGL_API_FIRST_API && api <= _EGL_API_LAST_API);
67 }
68
69
70 /**
71 * Convert a client API enum to an index, for use by thread info.
72 * The client API enum is assumed to be valid.
73 */
74 static INLINE EGLint
_eglConvertApiToIndex(EGLenum api)75 _eglConvertApiToIndex(EGLenum api)
76 {
77 return api - _EGL_API_FIRST_API;
78 }
79
80
81 /**
82 * Convert an index, used by thread info, to a client API enum.
83 * The index is assumed to be valid.
84 */
85 static INLINE EGLenum
_eglConvertApiFromIndex(EGLint idx)86 _eglConvertApiFromIndex(EGLint idx)
87 {
88 return _EGL_API_FIRST_API + idx;
89 }
90
91
92 PUBLIC _EGLThreadInfo *
93 _eglGetCurrentThread(void);
94
95
96 extern void
97 _eglDestroyCurrentThread(void);
98
99
100 extern EGLBoolean
101 _eglIsCurrentThreadDummy(void);
102
103
104 PUBLIC _EGLContext *
105 _eglGetAPIContext(EGLenum api);
106
107
108 PUBLIC _EGLContext *
109 _eglGetCurrentContext(void);
110
111
112 PUBLIC EGLBoolean
113 _eglError(EGLint errCode, const char *msg);
114
115
116 #endif /* EGLCURRENT_INCLUDED */
117