http://bugs.freedesktop.org/show_bug.cgi?id=21867





--- Comment #2 from Stefan Dösinger <[email protected]>  2009-05-22 
07:24:17 PST ---
Do you have a link to the proposal? A GLSL pragma or ARB option would be fine
with me, since fixed function correction is easy anyway.

I know of one convention that does something similar, but in the reverse way:
If the pixel shader reads the current pixel position the coordianate system can
be changed(upside down, half pixel stuff). That extension doesn't, as I
understand it, not change the output pixel boundaries.


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