mirror of https://github.com/mpv-player/mpv
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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#include "test_helpers.h"
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#include "video/out/gl_video.h"
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static void test_scale_ambient_lux_limits(void **state) {
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float x;
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x = gl_video_scale_ambient_lux(16.0, 64.0, 2.40, 1.961, 16.0);
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assert_double_equal(x, 2.40f);
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x = gl_video_scale_ambient_lux(16.0, 64.0, 2.40, 1.961, 64.0);
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assert_double_equal(x, 1.961f);
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}
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static void test_scale_ambient_lux_sign(void **state) {
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float x;
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x = gl_video_scale_ambient_lux(16.0, 64.0, 1.961, 2.40, 64.0);
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assert_double_equal(x, 2.40f);
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}
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static void test_scale_ambient_lux_clamping(void **state) {
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float x;
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x = gl_video_scale_ambient_lux(16.0, 64.0, 2.40, 1.961, 0.0);
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assert_double_equal(x, 2.40f);
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}
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static void test_scale_ambient_lux_log10_midpoint(void **state) {
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float x;
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// 32 corresponds to the the midpoint after converting lux to the log10 scale
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x = gl_video_scale_ambient_lux(16.0, 64.0, 2.40, 1.961, 32.0);
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float mid_gamma = (2.40 - 1.961) / 2 + 1.961;
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assert_double_equal(x, mid_gamma);
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}
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int main(void) {
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const UnitTest tests[] = {
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unit_test(test_scale_ambient_lux_limits),
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unit_test(test_scale_ambient_lux_sign),
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unit_test(test_scale_ambient_lux_clamping),
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unit_test(test_scale_ambient_lux_log10_midpoint),
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};
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return run_tests(tests);
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}
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