Re: [PATCH v5 02/44] drm/vkms: Round fixp2int conversion in lerp_u16

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Le 19/08/24 - 16:56, Harry Wentland a écrit :
> fixp2int always rounds down, fixp2int_ceil rounds up. We need
> the new fixp2int_round.
> 
> Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
> ---
>  drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
> index e7441b227b3c..3d6785d081f2 100644
> --- a/drivers/gpu/drm/vkms/vkms_composer.c
> +++ b/drivers/gpu/drm/vkms/vkms_composer.c
> @@ -98,7 +98,7 @@ static u16 lerp_u16(u16 a, u16 b, s64 t)
>  
>  	s64 delta = drm_fixp_mul(b_fp - a_fp,  t);
>  
> -	return drm_fixp2int(a_fp + delta);
> +	return drm_fixp2int_round(a_fp + delta);
>  }
>  
>  static s64 get_lut_index(const struct vkms_color_lut *lut, u16 channel_value)
> -- 
> 2.46.0
> 

Reviewed-by: Louis Chauvet <louis.chauvet@xxxxxxxxxxx>



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