C - 将RGB（31,31,31）转换为16位颜色。 [英] C - Convert RGB(31,31,31) to 16 bit colour.
问题描述
1.写一个函数或宏，它取0到31之间的三个值，并将其转换为BGR 16位格式。例如，函数原型应该看起来像u16 BGR（u16 b，u16 g，u16 r）;
1. Write a function or macro, which takes three values between 0 and 31, and converts this to BGR 16 bit format. For example, the function prototype should look like u16 BGR(u16 b, u16 g, u16 r);
这是我老师的分配，但我认为在''正常'的条款中意味着：
写一个带RGB（r，g，b）的函数; r，g和b是0到31之间的值;然后它将其转换为16位RGB。
我不知道该怎么做，或者它意味着什么。
提前谢谢。
That''s the assigment from my teacher, but i think in ''normal'' terms that means:
Write a function that takes RGB(r,g,b); r, g and b being values between 0 and 31; it then converts it to 16 bit RGB.
I haven''t a clue how to do that, or what it means.
Thanks in advance.
推荐答案
这是我老师的分配，但我觉得正常的意思是：
写一个带RGB（r，g，b）的函数; r，g和b是0到31之间的值;然后它将其转换为16位RGB。
我不知道该怎么做，或者它意味着什么。
提前谢谢。
That''s the assigment from my teacher, but i think in ''normal'' terms that means:
Write a function that takes RGB(r,g,b); r, g and b being values between 0 and 31; it then converts it to 16 bit RGB.
I haven''t a clue how to do that, or what it means.
Thanks in advance.
请注意，[0,31]范围内的值占用5位。其中三个旁边每个
其他占15位。这非常适合16位字。看看位移
运算符<<和>>
亲切的问候，
Jos
Note that a value in the range [0, 31] takes up 5 bits. Three of them next to each
other take up 15 bits. That fits nicely in a 16 bit word. Have a look at the bit shift
operators << and >>
kind regards,
Jos
请注意，[0,31]范围内的值占用5位。其中三个旁边每个
其他占15位。这非常适合16位字。看看位移
运算符<<和>>
亲切的问候，
Jos
Note that a value in the range [0, 31] takes up 5 bits. Three of them next to each
other take up 15 bits. That fits nicely in a 16 bit word. Have a look at the bit shift
operators << and >>
kind regards,
Jos
那个对我来说并不是很重要。我没有做太多的比特，比特移位等。
That doesn''t really mean much to me. I haven''t done much with bits, bit shift etc..
这对我来说并不是很重要。我没有做太多的比特，比特转移等..
That doesn''t really mean much to me. I haven''t done much with bits, bit shift etc..
嗯：开始阅读。
kind问候，
Jos
Well: start reading then.
kind regards,
Jos
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