src/egl/main/eglcurrent.h

   1 #ifndef EGLCURRENT_INCLUDED
   2 #define EGLCURRENT_INCLUDED
   3
   4 #include "egltypedefs.h"
   5
   6
   7 #define _EGL_API_NUM_INDICES \
   8    (EGL_OPENGL_API - EGL_OPENGL_ES_API + 2) /* idx 0 is for EGL_NONE */
   9
  10
  11 /**
  12  * Per-thread info
  13  */
  14 struct _egl_thread_info
  15 {
  16    EGLint LastError;
  17    _EGLContext *CurrentContexts[_EGL_API_NUM_INDICES];
  18    /* use index for fast access to current context */
  19    EGLint CurrentAPIIndex;
  20 };
  21
  22
  23 extern EGLBoolean
  24 _eglInitCurrent(void);
  25
  26
  27 extern void
  28 _eglFiniCurrent(void);
  29
  30
  31 /**
  32  * Return true if a client API enum can be converted to an index.
  33  */
  34 static INLINE EGLBoolean
  35 _eglIsApiValid(EGLenum api)
  36 {
  37    return ((api >= EGL_OPENGL_ES_API && api <= EGL_OPENGL_API) ||
  38            api == EGL_NONE);
  39 }
  40
  41
  42 /**
  43  * Convert a client API enum to an index, for use by thread info.
  44  * The client API enum is assumed to be valid.
  45  */
  46 static INLINE EGLint
  47 _eglConvertApiToIndex(EGLenum api)
  48 {
  49    return (api != EGL_NONE) ? api - EGL_OPENGL_ES_API + 1 : 0;
  50 }
  51
  52
  53 /**
  54  * Convert an index, used by thread info, to a client API enum.
  55  * The index is assumed to be valid.
  56  */
  57 static INLINE EGLenum
  58 _eglConvertApiFromIndex(EGLint idx)
  59 {
  60    return (idx) ? EGL_OPENGL_ES_API + idx - 1 : EGL_NONE;
  61 }
  62
  63
  64 extern _EGLThreadInfo *
  65 _eglGetCurrentThread(void);
  66
  67
  68 extern void
  69 _eglDestroyCurrentThread(void);
  70
  71
  72 extern EGLBoolean
  73 _eglIsCurrentThreadDummy(void);
  74
  75
  76 extern _EGLContext *
  77 _eglGetCurrentContext(void);
  78
  79
  80 extern _EGLDisplay *
  81 _eglGetCurrentDisplay(void);
  82
  83
  84 extern _EGLSurface *
  85 _eglGetCurrentSurface(EGLint readdraw);
  86
  87
  88 extern EGLBoolean
  89 _eglError(EGLint errCode, const char *msg);
  90
  91
  92 #endif /* EGLCURRENT_INCLUDED */