颜色调配--16位转换成24位

：请把RGB(565)格式数据改成RGB(888)格式，即用三个byte表示原来两个byte的数据

565: |           byte0         |            byte1               |
     | x1 x2 x3 x4 x5 x6 x7 x8 | x9 x10 x11 x12 x13 x14 x15 x16 |
888: |         byte0        |          byte1          |          byte2           |
     | 0 0 0 x1 x2 x3 x4 x5 | 0 0 x6 x7 x8 x9 x10 x11 | 0 0 0 x12 x13 x14 x15 x16 |

程序：
#include <stdio.h>

void rgb565_2_rgb888(unsigned short *rgb565, unsigned int *rgb888)
{
    *rgb888 = ((*rgb565) & 0xf800);
    *rgb888 = ((*rgb888) << 8);

    *rgb888 = ((*rgb888) | ((*rgb565 & 0x07e0) << 5));
    *rgb888 = (*rgb888) | (((*rgb565) & 0x001f) << 3);
    
    printf("%d\n", *rgb888);
}

int main(void)
{
    unsigned short rgb565 = 8;
    unsigned int rgb888 = 0;
    rgb565_2_rgb888(&rgb565, &rgb888);
    
    return 0;
}

输出：64