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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* Convert buffer to RGB
*/
#pragma once
#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,
RGB,
YUVPacked,
YUVPlanar,
YUVSemiPlanar,
};
void convertRGB(const Image *src, unsigned char *dst);
void convertYUVPacked(const Image *src, unsigned char *dst);
void convertYUVPlanar(const Image *src, unsigned char *dst);
void convertYUVSemiPlanar(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_;
};
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