On 13.02.2017 20:08, Thibault Saunier wrote:
> User userspace provided by the user as we are only doing scaling and
> color encoding conversion, we won't be able to transform the colorspace
> itself and the colorspace won't mater in that operation.
>
> Also always use output colorspace on the capture side.
>
> Signed-off-by: Thibault Saunier <thibault.saun...@osg.samsung.com>
This patch can be squashed with previous one as the only thing to do is
to set output colorspace the same as capture colorspace.
--
Regards
Andrzej
>
> ---
>
> Changes in v4:
> - Use any colorspace provided by the user as it won't affect the way we
> handle our operations (guessing it if none is provided)
> - Always use output colorspace on the capture side
>
> Changes in v3:
> - Do not check values in the g_fmt functions as Andrzej explained in previous
> review
> - Set colorspace if user passed V4L2_COLORSPACE_DEFAULT in
>
> Changes in v2: None
>
> drivers/media/platform/exynos-gsc/gsc-core.c | 14 ++++++++++----
> drivers/media/platform/exynos-gsc/gsc-core.h | 1 +
> 2 files changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c
> b/drivers/media/platform/exynos-gsc/gsc-core.c
> index db7d9883861b..772599de8c13 100644
> --- a/drivers/media/platform/exynos-gsc/gsc-core.c
> +++ b/drivers/media/platform/exynos-gsc/gsc-core.c
> @@ -454,6 +454,7 @@ int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct
> v4l2_format *f)
> } else {
> min_w = variant->pix_min->target_rot_dis_w;
> min_h = variant->pix_min->target_rot_dis_h;
> + pix_mp->colorspace = ctx->out_colorspace;
> }
>
> pr_debug("mod_x: %d, mod_y: %d, max_w: %d, max_h = %d",
> @@ -472,10 +473,15 @@ int gsc_try_fmt_mplane(struct gsc_ctx *ctx, struct
> v4l2_format *f)
>
> pix_mp->num_planes = fmt->num_planes;
>
> - if (pix_mp->width > 720 && pix_mp->height > 576) /* HD */
> - pix_mp->colorspace = V4L2_COLORSPACE_REC709;
> - else /* SD */
> - pix_mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
> + if (pix_mp->colorspace == V4L2_COLORSPACE_DEFAULT) {
> + if (pix_mp->width > 720 && pix_mp->height > 576) /* HD */
> + pix_mp->colorspace = V4L2_COLORSPACE_REC709;
> + else /* SD */
> + pix_mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
> + }
> +
> + if (V4L2_TYPE_IS_OUTPUT(f->type))
> + ctx->out_colorspace = pix_mp->colorspace;
>
> for (i = 0; i < pix_mp->num_planes; ++i) {
> struct v4l2_plane_pix_format *plane_fmt = &pix_mp->plane_fmt[i];
> diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h
> b/drivers/media/platform/exynos-gsc/gsc-core.h
> index 696217e9af66..715d9c9d8d30 100644
> --- a/drivers/media/platform/exynos-gsc/gsc-core.h
> +++ b/drivers/media/platform/exynos-gsc/gsc-core.h
> @@ -376,6 +376,7 @@ struct gsc_ctx {
> struct v4l2_ctrl_handler ctrl_handler;
> struct gsc_ctrls gsc_ctrls;
> bool ctrls_rdy;
> + enum v4l2_colorspace out_colorspace;
> };
>
> void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame *frm);
