Hi Qingwei,
The correct way is to modify in your frame buffer display driver , just swap
between B and R
The frame buffer display driver is in your linux kernel driver
/linux-xxx/drivers/video
Regards,
Tung
On Thu, Sep 8, 2011 at 8:43 PM, <lqw1...@gmail.com> wrote:
> Hi,
>
> Now I have to use BGR565 instead of RGB565, so I modified following codes,
> but they have no effect.
> file:
> mxc_ipuv3_fb.c, function: mxcfb_check_var
> ......
> switch
> (var->bits_per_pixel) {
> case 8:
> ......
> break;
> case 16:
> var->red.length = 5;
> var->red.offset = 11; ----> 0
> var->red.msb_right = 0;
> var->green.length = 6;
> var->green.offset = 5;
> var->green.msb_right = 0;
> var->blue.length = 5;
> var->blue.offset = 0; ---->11
> var->blue.msb_right = 0;
> ......
> break;
> case 24:
> ......
>
> And then, I modified _ipu_ch_params_set_packing in
> drivers/mxc/ipu3/ipu_param_**mem.h, and found the color of UI is correct,
> but camera preview/taking photo/recording, video playing are not correct (R
> and B color are reversed).
>
> I think the best way is to modify framebuffer, but I don’t know how to do.
>
> Does anyone have some ideas?
>
> BR,
> Qingwei
>
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