Pekka Paalanen a0584e64cf tests/alpha-blending: replace compare_float() with rgb_diff_stat ... compare_float() was an ad hoc max error logger with optional debug logging. Now that we have rgb_diff_stat, we can get the same statistics and more with less code. It looks like we would lose the pixel index x, but that can be recovered from the dump file line number. This patch takes care to keep the test condition exactly the same as it was before. The statistics print-out has more details now. The recorded dump position is the foreground color as that varies while the background color is constant. An example Octave function is included to show how to visualize the rgb_diff_stat dump. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>		2022-06-30 09:08:32 +00:00
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weston_plot_rgb_diff_stat.m	tests/alpha-blending: replace compare_float() with rgb_diff_stat	2022-06-30 09:08:32 +00:00