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| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2016-09-06 11:38:56 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-14 22:53:00 -0300 |
| commit | 0ac702d5b903d441ef64e61f453de7c0ce1322fa (patch) | |
| tree | 2e6ed9cc33363c0c659abbab9920856caf1c5ec8 /drivers/media/platform/vsp1/vsp1_hgt.h | |
| parent | 5deb1c04c9f2cc3fe4b355a55a8fad244683a54a (diff) | |
[media] v4l: vsp1: Add HGT support
The HGT is a Histogram Generator Two-Dimensions. It computes a weighted
frequency histograms for hue and saturation areas over a configurable
region of the image with optional subsampling.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_hgt.h')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_hgt.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_hgt.h b/drivers/media/platform/vsp1/vsp1_hgt.h new file mode 100644 index 000000000000..83f2e130942a --- /dev/null +++ b/drivers/media/platform/vsp1/vsp1_hgt.h @@ -0,0 +1,42 @@ +/* + * vsp1_hgt.h -- R-Car VSP1 Histogram Generator 2D + * + * Copyright (C) 2016 Renesas Electronics Corporation + * + * Contact: Niklas Söderlund (niklas.soderlund@ragnatech.se) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef __VSP1_HGT_H__ +#define __VSP1_HGT_H__ + +#include <media/media-entity.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-subdev.h> + +#include "vsp1_histo.h" + +struct vsp1_device; + +#define HGT_NUM_HUE_AREAS 6 + +struct vsp1_hgt { + struct vsp1_histogram histo; + + struct v4l2_ctrl_handler ctrls; + + u8 hue_areas[HGT_NUM_HUE_AREAS * 2]; +}; + +static inline struct vsp1_hgt *to_hgt(struct v4l2_subdev *subdev) +{ + return container_of(subdev, struct vsp1_hgt, histo.entity.subdev); +} + +struct vsp1_hgt *vsp1_hgt_create(struct vsp1_device *vsp1); +void vsp1_hgt_frame_end(struct vsp1_entity *hgt); + +#endif /* __VSP1_HGT_H__ */ |