Implemented EGL_NV_post_sub_buffer.
The change to the sample is just to demonstrate how I tested it. I won't check in the stuff under samples/.
It's not clear to me what eglPostSubBufferNV should do if EGL_POST_SUB_BUFFER_SUPPORTED_NV is false. At the moment it fails silently as though it was called on the wrong surface type:
"If <surface> is a back-buffered surface, then the requested portion
of the color buffer is copied to the native window associated with
that surface. If <surface> is a single-buffered window, pixmap, or
pbuffer surface, eglSwapBuffers and eglPostSubBufferNV have no
effect."
Review URL: http://codereview.appspot.com/5345050
git-svn-id: http://angleproject.googlecode.com/svn/trunk@902 736b8ea6-26fd-11df-bfd4-992fa37f6226
10 files changed
