summaryrefslogtreecommitdiff
path: root/src/qcam/format_converter.h
blob: bb04aa959a1a9f52c9243105bd2ee7dabddb86fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * format_convert.h - qcam - Convert buffer to RGB
 */
#ifndef __QCAM_FORMAT_CONVERTER_H__
#define __QCAM_FORMAT_CONVERTER_H__

#include <stddef.h>

#include <QSize>

#include <libcamera/pixel_format.h>

class Image;
class QImage;

class FormatConverter
{
public:
	int configure(const libcamera::PixelFormat &format, const QSize &size,
		      unsigned int stride);

	void convert(const Image *src, size_t size, QImage *dst);

private:
	enum FormatFamily {
		MJPEG,
		NV,
		RGB,
		YUV,
	};

	void convertNV(const Image *src, unsigned char *dst);
	void convertRGB(const Image *src, unsigned char *dst);
	void convertYUV(const Image *src, unsigned char *dst);

	libcamera::PixelFormat format_;
	unsigned int width_;
	unsigned int height_;
	unsigned int stride_;

	enum FormatFamily formatFamily_;

	/* NV parameters */
	unsigned int horzSubSample_;
	unsigned int vertSubSample_;
	bool nvSwap_;

	/* RGB parameters */
	unsigned int bpp_;
	unsigned int r_pos_;
	unsigned int g_pos_;
	unsigned int b_pos_;

	/* YUV parameters */
	unsigned int y_pos_;
	unsigned int cb_pos_;
};

#endif /* __QCAM_FORMAT_CONVERTER_H__ */