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This removes the igt_write_fb_to_png function (that was unused thus far) and exports the igt_get_cairo_surface function to grab the matching cairo surface. Writing to a png is now handled by the common frame handling code in lib/igt_frame. This also fixes how the surface is retreived in chamelium code, which avoids destroying it too early. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Reviewed-by: Lyude <lyude@redhat.com>
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