[patch] Fix for generic pwarp

[Jules Bergmann]

Stefan,

This patch attempts to fix the generic pwarp impl so that it doesn't 
access memory past the end of the input image.

Can you give a spin on windows to see if it fixes the segfault?

				-- Jules


-- 
Jules Bergmann
CodeSourcery
jules at codesourcery.com
(650) 331-3385 x705
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