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test-jpeg-roundtrip: Print summary statistics at the end

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Nico Weber 2024-01-13 21:45:45 -05:00 • committed by Sam Atkins
parent 8ef3310525
commit 25efe65a83
1 changed files with 26 additions and 12 deletions
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38
Userland/Utilities/test-jpeg-roundtrip.cpp
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@ -51,32 +51,46 @@ static ErrorOr<float> perceived_distance_in_sRGB(Gfx::Color a, Gfx::Color b)
return DeltaE(TRY(sRGB->to_lab(array_a)), TRY(sRGB->to_lab(array_b))); return DeltaE(TRY(sRGB->to_lab(array_a)), TRY(sRGB->to_lab(array_b)));
} }
static ErrorOr<void> test(Gfx::Color color) struct Stats {
float max_delta {};
int max_number_of_iterations {};
};
static ErrorOr<void> test(Gfx::Color color, Stats& stats)
{ {
auto fixpoint = TRY(compute_fixpoint(color)); auto fixpoint = TRY(compute_fixpoint(color));
float perceived_distance = TRY(perceived_distance_in_sRGB(color, fixpoint.fixpoint)); float perceived_distance = TRY(perceived_distance_in_sRGB(color, fixpoint.fixpoint));
outln("color {} converges to {} after saving {} times, delta {}", color, fixpoint.fixpoint, fixpoint.number_of_iterations, perceived_distance); outln("color {} converges to {} after saving {} times, delta {}", color, fixpoint.fixpoint, fixpoint.number_of_iterations, perceived_distance);
stats.max_delta = max(stats.max_delta, perceived_distance);
stats.max_number_of_iterations = max(stats.max_number_of_iterations, fixpoint.number_of_iterations);
return {}; return {};
} }
ErrorOr<int> serenity_main(Main::Arguments) ErrorOr<int> serenity_main(Main::Arguments)
{ {
TRY(test(Gfx::Color::Red)); Stats stats;
TRY(test(Gfx::Color::Green));
TRY(test(Gfx::Color::Blue));
TRY(test(Gfx::Color::MidRed)); TRY(test(Gfx::Color::Red, stats));
TRY(test(Gfx::Color::MidGreen)); TRY(test(Gfx::Color::Green, stats));
TRY(test(Gfx::Color::MidBlue)); TRY(test(Gfx::Color::Blue, stats));
TRY(test(Gfx::Color::Cyan)); TRY(test(Gfx::Color::MidRed, stats));
TRY(test(Gfx::Color::Magenta)); TRY(test(Gfx::Color::MidGreen, stats));
TRY(test(Gfx::Color::Yellow)); TRY(test(Gfx::Color::MidBlue, stats));
TRY(test(Gfx::Color::Black)); TRY(test(Gfx::Color::Cyan, stats));
TRY(test(Gfx::Color::White)); TRY(test(Gfx::Color::Magenta, stats));
TRY(test(Gfx::Color::Yellow, stats));
TRY(test(Gfx::Color::Black, stats));
TRY(test(Gfx::Color::White, stats));
outln();
outln("max delta {}, max number of iterations {}", stats.max_delta, stats.max_number_of_iterations);
return 0; return 0;
} }