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Paul Peavyhouse
2019-10-19 05:26:18 -07:00
parent a11a06547f
commit ae006b2bc9
1 changed files with 1 additions and 1 deletions
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src/lv_misc/lv_color.h
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@@ -310,7 +310,7 @@ static inline uint32_t lv_color_to32(lv_color_t color)
* valueto = ( valuefrom * multiplier + adder ) >> divisor * valueto = ( valuefrom * multiplier + adder ) >> divisor
* multiplier = FLOOR( ( (2^bitsto - 1) << divisor ) / (float)(2^bitsfrom - 1) ) * multiplier = FLOOR( ( (2^bitsto - 1) << divisor ) / (float)(2^bitsfrom - 1) )
* *
* Find the first divisor where ( adder >> divisor ) > 0 * Find the first divisor where ( adder >> divisor ) <= 0
* *
* 5-bit to 8-bit: ( 31 * multiplier + adder ) >> divisor = 255 * 5-bit to 8-bit: ( 31 * multiplier + adder ) >> divisor = 255
* divisor multiplier adder min (0) max (31) * divisor multiplier adder min (0) max (31)