[Mesa-stable] [Mesa-dev] [PATCH] st/omx/enc: fix blit setup for YUV LoadImage

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Fri, Apr 27, 2018 at 8:32 AM, Leo Liu <leo.liu at amd.com> wrote:

> The blit here involves scaling since it's copying from I8 format to R8G8
> format.
> Half of source will be filtered out with PIPE_TEX_FILTER_NEAREST
> instruction, it
> looks that GPU always uses the second half as source. Currently we use "1"
> as
> the start point of x for R, then causing 1 source pixel of U component
> shift to
> right. So "-1" should be the start point for U component.
>
> Cc: 18.0 18.1 <mesa-stable at lists.freedesktop.org>
> ---
>  src/gallium/state_trackers/omx/vid_enc_common.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/src/gallium/state_trackers/omx/vid_enc_common.c
> b/src/gallium/state_trackers/omx/vid_enc_common.c
> index 874dd3a..2aa739d 100644
> --- a/src/gallium/state_trackers/omx/vid_enc_common.c
> +++ b/src/gallium/state_trackers/omx/vid_enc_common.c
> @@ -353,7 +353,7 @@ OMX_ERRORTYPE enc_LoadImage_common(vid_enc_PrivateType
> * priv, OMX_VIDEO_PORTDEF
>        blit.src.resource = inp->resource;
>        blit.src.format = inp->resource->format;
>
> -      blit.src.box.x = 0;
> +      blit.src.box.x = -1;
>        blit.src.box.y = def->nFrameHeight;
>        blit.src.box.width = def->nFrameWidth;
>        blit.src.box.height = def->nFrameHeight / 2 ;
> @@ -367,11 +367,11 @@ OMX_ERRORTYPE enc_LoadImage_common(vid_enc_PrivateType
> * priv, OMX_VIDEO_PORTDEF
>        blit.dst.box.depth = 1;
>        blit.filter = PIPE_TEX_FILTER_NEAREST;
>
> -      blit.mask = PIPE_MASK_G;
> +      blit.mask = PIPE_MASK_R;
>        priv->s_pipe->blit(priv->s_pipe, &blit);
>
> -      blit.src.box.x = 1;
> -      blit.mask = PIPE_MASK_R;
> +      blit.src.box.x = 0;
> +      blit.mask = PIPE_MASK_G;
>        priv->s_pipe->blit(priv->s_pipe, &blit);
>        priv->s_pipe->flush(priv->s_pipe, NULL, 0);
>
> --
> 2.7.4
>
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