Package rendercheck: Information

rendercheck is a program to test a Render extension implementation
against separate calculations of expected output.

Tests currently include:
 - Destination coordinates correctness
 - Source coordinates correctness
 - Transformed (FilterNearest) source coordinates correctness.
 - Composite with and without mask (with/without component alpha), with 1x1
   repeating Pictures and 10x10 Pictures.

Unfortunately, there are currently no command-line arguments to
control its execution.  Options, such as verbosity or number of
iterations to encourage pixmap migration, are controlled only in
source.