[deliverable/linux.git] / drivers / media / platform / soc_camera / soc_scale_crop.h

/*
 * soc-camera generic scaling-cropping manipulation functions
 *
 * Copyright (C) 2013 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 *
 * 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 SOC_SCALE_CROP_H
#define SOC_SCALE_CROP_H

#include <linux/kernel.h>

struct soc_camera_device;

struct v4l2_selection;
struct v4l2_mbus_framefmt;
struct v4l2_pix_format;
struct v4l2_rect;
struct v4l2_subdev;

static inline unsigned int soc_camera_shift_scale(unsigned int size,
				unsigned int shift, unsigned int scale)
{
	return DIV_ROUND_CLOSEST(size << shift, scale);
}

#define soc_camera_calc_scale(in, shift, out) soc_camera_shift_scale(in, shift, out)

int soc_camera_client_g_rect(struct v4l2_subdev *sd, struct v4l2_rect *rect);
int soc_camera_client_s_selection(struct v4l2_subdev *sd,
			struct v4l2_selection *sel, struct v4l2_selection *cam_sel,
			struct v4l2_rect *target_rect, struct v4l2_rect *subrect);
int soc_camera_client_scale(struct soc_camera_device *icd,
			struct v4l2_rect *rect, struct v4l2_rect *subrect,
			struct v4l2_mbus_framefmt *mf,
			unsigned int *width, unsigned int *height,
			bool host_can_scale, unsigned int shift);
void soc_camera_calc_client_output(struct soc_camera_device *icd,
		struct v4l2_rect *rect, struct v4l2_rect *subrect,
		const struct v4l2_pix_format *pix, struct v4l2_mbus_framefmt *mf,
		unsigned int shift);

#endif
Commit	Line	Data
22e0099a GL	1	/*
	2	* soc-camera generic scaling-cropping manipulation functions
	3	*
	4	* Copyright (C) 2013 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#ifndef SOC_SCALE_CROP_H
	13	#define SOC_SCALE_CROP_H
	14
	15	#include <linux/kernel.h>
	16
	17	struct soc_camera_device;
	18
10d5509c	19	struct v4l2_selection;
22e0099a GL	20	struct v4l2_mbus_framefmt;
	21	struct v4l2_pix_format;
	22	struct v4l2_rect;
	23	struct v4l2_subdev;
	24
	25	static inline unsigned int soc_camera_shift_scale(unsigned int size,
	26	unsigned int shift, unsigned int scale)
	27	{
	28	return DIV_ROUND_CLOSEST(size << shift, scale);
	29	}
	30
	31	#define soc_camera_calc_scale(in, shift, out) soc_camera_shift_scale(in, shift, out)
	32
	33	int soc_camera_client_g_rect(struct v4l2_subdev sd, struct v4l2_rect rect);
10d5509c HV	34	int soc_camera_client_s_selection(struct v4l2_subdev *sd,
10d5509c HV	35	struct v4l2_selection sel, struct v4l2_selection cam_sel,
22e0099a GL	36	struct v4l2_rect target_rect, struct v4l2_rect subrect);
	37	int soc_camera_client_scale(struct soc_camera_device *icd,
	38	struct v4l2_rect rect, struct v4l2_rect subrect,
	39	struct v4l2_mbus_framefmt *mf,
	40	unsigned int width, unsigned int height,
	41	bool host_can_scale, unsigned int shift);
	42	void soc_camera_calc_client_output(struct soc_camera_device *icd,
	43	struct v4l2_rect rect, struct v4l2_rect subrect,
	44	const struct v4l2_pix_format pix, struct v4l2_mbus_framefmt mf,
	45	unsigned int shift);
	46
	47	#endif