[Development] How to change the bit order of the data writen into the framebuffer by Qt

[miaoyuwf]

hi,
I have got a special used:my system is 4bit color depths,so I config the Qt depths 4. But the data in the frame buffer is like this: pix1(4bit),pix2(4bit),pix3(4bit),pix4(4bit),…………., pix1(4bit) and pix2(4bit) are put together into one byte , and pix1(4bit) take the high 4 bit position , pix2(4bit) take the low 4 bit position , so was pix3 and pixel4 , pixel5 and pixel6 ………………. . actually , I need the data order like this :
pix2(4bit),pix1(4bit),pix4(4bit),pix3(4bit),………… , pix1(4bit) and pix2(4bit) are put together into one byte , and pix2(4bit) take the high 4 bit position , pix1(4bit) take the low 4 bit position , so was pix4 and pixel3 , pixel6 and pixel5 ………………. . 
Is there a good way to deal with it ? 




Thanks & Regards,


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Miao yu
Mobile:  +86-15951652750
Mail:       miaoyuwf at 163.com
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