mirror of https://github.com/mpv-player/mpv
26 lines
811 B
C
26 lines
811 B
C
#include "test_utils.h"
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#include "video/out/gpu/utils.h"
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int main(void)
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{
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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_float_equal(x, 2.40f, FLT_EPSILON);
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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_float_equal(x, 1.961f, FLT_EPSILON);
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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_float_equal(x, 2.40f, FLT_EPSILON);
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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_float_equal(x, 2.40f, FLT_EPSILON);
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// 32 corresponds to 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_float_equal(x, mid_gamma, FLT_EPSILON);
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return 0;
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}
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