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test-jpeg-roundtrip: Show the average delta and number of iterations

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This commit is contained in:
Lucas CHOLLET
2025-10-23 12:23:14 +02:00
committed by Nico Weber
parent bd5cde223b
commit 19bbbaf0cc
1 changed files with 7 additions and 0 deletions
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7
Userland/Utilities/test-jpeg-roundtrip.cpp
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@@ -52,8 +52,11 @@ static ErrorOr<float> perceived_distance_in_sRGB(Gfx::Color a, Gfx::Color b)
}
struct Stats {
int number_of_tests {};
float max_delta {};
float delta_sum {};
int max_number_of_iterations {};
int number_of_iterations_sum {};
};
static ErrorOr<void> test(Gfx::Color color, Stats& stats)
@@ -64,6 +67,9 @@ static ErrorOr<void> test(Gfx::Color color, Stats& stats)
outln("color {} converges to {} after saving {} times, delta {}", color, fixpoint.fixpoint, fixpoint.number_of_iterations, perceived_distance);
stats.number_of_tests++;
stats.delta_sum += perceived_distance;
stats.number_of_iterations_sum += fixpoint.number_of_iterations;
stats.max_delta = max(stats.max_delta, perceived_distance);
stats.max_number_of_iterations = max(stats.max_number_of_iterations, fixpoint.number_of_iterations);
@@ -99,6 +105,7 @@ ErrorOr<int> serenity_main(Main::Arguments)
TRY(test(Gfx::Color::White, stats));
outln();
outln("average delta {}, average number of iterations {}", stats.delta_sum / stats.number_of_tests, stats.number_of_iterations_sum / stats.number_of_tests);
outln("max delta {}, max number of iterations {}", stats.max_delta, stats.max_number_of_iterations);
return 0;