thumbnail generation via qapitrace

[Divick Kishore]

Hi,
    it isn't clear from the docs that the thumbnail generated by
apitrace is after the selected call in qapitrace or before the call
completion?

There is another issue that I have w.r.t. the thumbnails generated by
qapitrace at certain call points. I have the following set of calls
show in qapitrace:

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glGetIntegerv(GL_CURRENT_PROGRAM)

When I generate the thumbnail at the call to glClear, the "Surfaces"
tab shows some output in GL_TEXTURE0, and framebuffers description
show "GL_COLOR_ATTACHMENT0" but when I generate the thumbnail at the
glGetIntegerv call it shows a blank texture (white) and framebuffers
is GL_BACK and is completely black.

What I don't understand is that how come the framebuffer description
has changed from a bound FBO to a default BACK buffer even without any
call to glBindFramebuffer call? This just doesn't seem right to me.

I would appreciate any help.
Thanks,
Divick