Searched defs:LUM (Results 1 - 1 of 1) sorted by relevance

/external/pixman/pixman/
H A Dpixman-combine32.c834 * LUM (C) = 0.3 × Cred + 0.59 × Cgreen + 0.11 × Cblue
837 * l = LUM (C)
847 * d = l – LUM (C)
864 * multiplied by a real number. LUM and SAT are linear:
866 * LUM (r × C) = r × LUM (C) SAT (r * C) = r * SAT (C)
887 * = r × clip_color ( C + l - LUM (C), a)
889 * = clip_color ( r * C + r × l - r * LUM (C), r * a)
910 * = a_s * a_d * set_lum (S/a_s, LUM (D/a_d), 1)
911 * = set_lum (S * a_d, a_s * LUM (
939 #define LUM macro
1186 #undef LUM macro
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