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2017-09-08lib: clean up header includesDaniel Vetter
Just a bit of OCD, I like it when connections within library modules are a bit more obvious. igt.h is ok for tests, but let's use individual include lines for libraries consistently. Also order standard includes before igt ones. v2: Rebase. Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Acked-by: Petri Latvala <petri.latvala@intel.com> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-09-08lib: prefix frame_dump_pathDaniel Vetter
Just a bit of ocd for anything non-static. Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Acked-by: Petri Latvala <petri.latvala@intel.com> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-20lib/igt_frame: Add support for analog frame comparison testingPaul Kocialkowski
This adds support for analog frame comparison check, as used in VGA. Since VGA uses a DAC-ADC chain, its data cannot be expected to be pixel perfect. Thus, it is impossible to uses a CRC check and full frames have to be analyzed instead. Such an analysis is implemented, based on both an absolute error threshold and a correlation with the expected error trend for a DAC-ADC chain. It was tested with a couple encoders and provides reliable error detection with few false positives. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Reviewed-by: Lyude <lyude@redhat.com>
2017-07-19Introduce common frame dumping configuration and helpersPaul Kocialkowski
This introduces a common FrameDumpPath configuration field, as well as helper functions in dedicated igt_frame for writing cairo surfaces to png files. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Reviewed-by: Lyude <lyude@redhat.com>