Adding functionality to paint and signal buffer swap for ozone surface factory.

third_party/khronos/EGL/eglplatform.h

 #ifndef __eglplatform_h_
 #define __eglplatform_h_
 
 /*
 ** Copyright (c) 2007-2009 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
 ** "Materials"), to deal in the Materials without restriction, including
 ** without limitation the rights to use, copy, modify, merge, publish,
@@ skipping 78 matching lines @@
 #include <android/native_window.h>
 
 struct egl_native_pixmap_t;
 
 typedef struct ANativeWindow*           EGLNativeWindowType;
 typedef struct egl_native_pixmap_t*     EGLNativePixmapType;
 typedef void*                           EGLNativeDisplayType;
 
 #elif defined(USE_OZONE)
 
-typedef int      EGLNativeDisplayType;
+typedef intptr_t EGLNativeDisplayType;

[Nico, 2016/10/10 16:58:03]

why is this intptr_t instead of void*? The typedefs for all other platforms are
pointers, so ozone being the odd system out is a bit inconvenient (eg you can
initialize an EGLNativeDisplayType with nullptr everywhere but ozone, you can
make an invalid id with reinterpret_cast<EGLNativeDisplayType>(1) everywhere but
ozone, etc)

 typedef intptr_t EGLNativeWindowType;
 typedef intptr_t EGLNativePixmapType;
 
 #elif defined(__unix__)
 
 /* X11 (tentative)  */
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 
 typedef Display *EGLNativeDisplayType;
@@ skipping 26 matching lines @@
 /* Define EGLint. This must be a signed integral type large enough to contain
  * all legal attribute names and values passed into and out of EGL, whether
  * their type is boolean, bitmask, enumerant (symbolic constant), integer,
  * handle, or other.  While in general a 32-bit integer will suffice, if
  * handles are 64 bit types, then EGLint should be defined as a signed 64-bit
  * integer type.
  */
 typedef khronos_int32_t EGLint;
 
 #endif /* __eglplatform_h */