Aaron Plattner 08dfff92e8 randr: Compare all the bytes in RRPostPendingProperties ...

RRPostPendingProperties tries to compare the pending and current
property values to decide whether they're actually changing.  However,
it does this using a memcmp that passes in pending_value->size as the
number of bytes.  This is actually the number of elements, where each
element is (pending_value->format / 8) bytes long.  This causes the
pending value to not be propagated if the first pending_value->size
bytes are the same and only the end of it is changing.

Fix this by computing the total number of bytes to compare in the
memcmp.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>

2011-07-29 16:41:53 -07:00

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