x11perf: Changes to 'master'

[Chris Wilson]

 do_blt.c   |   58 +++++++++++++++++++++++++++++++++++++++++++++++++++-------
 do_tests.c |   24 ++++++++++++++++++++++++
 x11perf.h  |    3 +++
 3 files changed, 78 insertions(+), 7 deletions(-)

New commits:
commit 7f46d58f7523a07e9086b7c47534c37240d83409
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Jan 6 10:58:53 2011 +0000

    Add tests for ShmGetImage
    
    Similar to GetImage and ShmPutImage, test the performance of retrieving
    pixel data from the X server without the overhead of copying the pixels.
    In the upper bound, using XShmGetImage, the performance will be limited
    by the RTT latency (x11perf -prop). However, comparing the scaling factors
    of XShmGetImage and XGetImage will give some insight into the driver
    efficiency.
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Adam Jackson <ajax at redhat.com>