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 */
51struct _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 */
63static INLINE EGLBoolean
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 */
74static INLINE EGLint
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 */
85static INLINE EGLenum
86_eglConvertApiFromIndex(EGLint idx)
87{
88   return _EGL_API_FIRST_API + idx;
89}
90
91
92PUBLIC _EGLThreadInfo *
93_eglGetCurrentThread(void);
94
95
96extern void
97_eglDestroyCurrentThread(void);
98
99
100extern EGLBoolean
101_eglIsCurrentThreadDummy(void);
102
103
104PUBLIC _EGLContext *
105_eglGetAPIContext(EGLenum api);
106
107
108PUBLIC _EGLContext *
109_eglGetCurrentContext(void);
110
111
112PUBLIC EGLBoolean
113_eglError(EGLint errCode, const char *msg);
114
115
116#endif /* EGLCURRENT_INCLUDED */
117