src/egl/main/eglcurrent.h

   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_ES3_BIT_KHR | \
  41     EGL_OPENGL_BIT)
  42
  43
  44 #define _EGL_API_FIRST_API EGL_OPENGL_ES_API
  45 #define _EGL_API_LAST_API EGL_OPENGL_API
  46 #define _EGL_API_NUM_APIS (_EGL_API_LAST_API - _EGL_API_FIRST_API + 1)
  47
  48
  49 /**
  50  * Per-thread info
  51  */
  52 struct _egl_thread_info
  53 {
  54    EGLint LastError;
  55    _EGLContext *CurrentContexts[_EGL_API_NUM_APIS];
  56    /* use index for fast access to current context */
  57    EGLint CurrentAPIIndex;
  58 };
  59
  60
  61 /**
  62  * Return true if a client API enum is recognized.
  63  */
  64 static INLINE EGLBoolean
  65 _eglIsApiValid(EGLenum api)
  66 {
  67    return (api >= _EGL_API_FIRST_API && api <= _EGL_API_LAST_API);
  68 }
  69
  70
  71 /**
  72  * Convert a client API enum to an index, for use by thread info.
  73  * The client API enum is assumed to be valid.
  74  */
  75 static INLINE EGLint
  76 _eglConvertApiToIndex(EGLenum api)
  77 {
  78    return api - _EGL_API_FIRST_API;
  79 }
  80
  81
  82 /**
  83  * Convert an index, used by thread info, to a client API enum.
  84  * The index is assumed to be valid.
  85  */
  86 static INLINE EGLenum
  87 _eglConvertApiFromIndex(EGLint idx)
  88 {
  89    return _EGL_API_FIRST_API + idx;
  90 }
  91
  92
  93 PUBLIC _EGLThreadInfo *
  94 _eglGetCurrentThread(void);
  95
  96
  97 extern void
  98 _eglDestroyCurrentThread(void);
  99
 100
 101 extern EGLBoolean
 102 _eglIsCurrentThreadDummy(void);
 103
 104
 105 PUBLIC _EGLContext *
 106 _eglGetAPIContext(EGLenum api);
 107
 108
 109 PUBLIC _EGLContext *
 110 _eglGetCurrentContext(void);
 111
 112
 113 PUBLIC EGLBoolean
 114 _eglError(EGLint errCode, const char *msg);
 115
 116
 117 #endif /* EGLCURRENT_INCLUDED */