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The HGO is a Histogram Generator One-Dimension. It computes per-channel histograms over a configurable region of the image with optional subsampling. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* vsp1_hgo.h -- R-Car VSP1 Histogram Generator 1D
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*
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* Copyright (C) 2016 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __VSP1_HGO_H__
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#define __VSP1_HGO_H__
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-subdev.h>
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#include "vsp1_histo.h"
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struct vsp1_device;
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struct vsp1_hgo {
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struct vsp1_histogram histo;
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struct {
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struct v4l2_ctrl_handler handler;
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struct v4l2_ctrl *max_rgb;
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struct v4l2_ctrl *num_bins;
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} ctrls;
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bool max_rgb;
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unsigned int num_bins;
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};
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static inline struct vsp1_hgo *to_hgo(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct vsp1_hgo, histo.entity.subdev);
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}
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struct vsp1_hgo *vsp1_hgo_create(struct vsp1_device *vsp1);
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void vsp1_hgo_frame_end(struct vsp1_entity *hgo);
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#endif /* __VSP1_HGO_H__ */
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