linux/drivers/media/platform/vsp1/vsp1_bru.h
Laurent Pinchart 6418b4d6e1 [media] v4l: vsp1: bru: Support premultiplied alpha at the BRU inputs
Adjust the BRU blending formula to avoid the multiplication by alpha
when the corresponding input format is premultiplied. As this requires
access to the RPFs connected to the BRU inputs from the BRU module,
store pointers to the RPFs in the BRU structure when validating the
pipeline.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-17 12:44:58 -03:00

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/*
* vsp1_bru.h -- R-Car VSP1 Blend ROP Unit
*
* Copyright (C) 2013 Renesas Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* 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_BRU_H__
#define __VSP1_BRU_H__
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1_entity.h"
struct vsp1_device;
struct vsp1_rwpf;
#define BRU_PAD_SINK(n) (n)
#define BRU_PAD_SOURCE 4
struct vsp1_bru {
struct vsp1_entity entity;
struct {
struct vsp1_rwpf *rpf;
struct v4l2_rect compose;
} inputs[4];
};
static inline struct vsp1_bru *to_bru(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct vsp1_bru, entity.subdev);
}
struct vsp1_bru *vsp1_bru_create(struct vsp1_device *vsp1);
#endif /* __VSP1_BRU_H__ */