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 /**
  24  * Return true if a client API enum can be converted to an index.
  25  */
  26 static INLINE EGLBoolean
  27 _eglIsApiValid(EGLenum api)
  28 {
  29    return ((api >= EGL_OPENGL_ES_API && api <= EGL_OPENGL_API) ||
  30            api == EGL_NONE);
  31 }
  32
  33
  34 /**
  35  * Convert a client API enum to an index, for use by thread info.
  36  * The client API enum is assumed to be valid.
  37  */
  38 static INLINE EGLint
  39 _eglConvertApiToIndex(EGLenum api)
  40 {
  41    return (api != EGL_NONE) ? api - EGL_OPENGL_ES_API + 1 : 0;
  42 }
  43
  44
  45 /**
  46  * Convert an index, used by thread info, to a client API enum.
  47  * The index is assumed to be valid.
  48  */
  49 static INLINE EGLenum
  50 _eglConvertApiFromIndex(EGLint idx)
  51 {
  52    return (idx) ? EGL_OPENGL_ES_API + idx - 1 : EGL_NONE;
  53 }
  54
  55
  56 extern _EGLThreadInfo *
  57 _eglGetCurrentThread(void);
  58
  59
  60 extern void
  61 _eglDestroyCurrentThread(void);
  62
  63
  64 extern EGLBoolean
  65 _eglIsCurrentThreadDummy(void);
  66
  67
  68 extern _EGLContext *
  69 _eglGetCurrentContext(void);
  70
  71
  72 extern _EGLDisplay *
  73 _eglGetCurrentDisplay(void);
  74
  75
  76 extern _EGLSurface *
  77 _eglGetCurrentSurface(EGLint readdraw);
  78
  79
  80 extern EGLBoolean
  81 _eglError(EGLint errCode, const char *msg);
  82
  83
  84 #endif /* EGLCURRENT_INCLUDED */