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path: root/src/qcam/format_converter.h
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/* 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 QImage;

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

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

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

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

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

	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__ */
">; } void setSeverity(LogSeverity severity); static const LogCategory &defaultCategory(); private: const char *name_; LogSeverity severity_; }; #define LOG_DECLARE_CATEGORY(name) \ extern const LogCategory &_LOG_CATEGORY(name)(); #define LOG_DEFINE_CATEGORY(name) \ const LogCategory &_LOG_CATEGORY(name)() \ { \ static LogCategory category(#name); \ return category; \ } class LogMessage { public: LogMessage(const char *fileName, unsigned int line, LogSeverity severity); LogMessage(const char *fileName, unsigned int line, const LogCategory &category, LogSeverity severity); LogMessage(const LogMessage &) = delete; LogMessage(LogMessage &&); ~LogMessage(); std::ostream &stream() { return msgStream_; } private: void init(const char *fileName, unsigned int line); std::ostringstream msgStream_; const LogCategory &category_; LogSeverity severity_; }; class Loggable { public: virtual ~Loggable(); protected: virtual std::string logPrefix() const = 0; LogMessage _log(const char *file, unsigned int line, LogSeverity severity) const; LogMessage _log(const char *file, unsigned int line, const LogCategory &category, LogSeverity severity) const; }; LogMessage _log(const char *file, unsigned int line, LogSeverity severity); LogMessage _log(const char *file, unsigned int line, const LogCategory &category, LogSeverity severity); #ifndef __DOXYGEN__ #define _LOG_CATEGORY(name) logCategory##name #define _LOG1(severity) \ _log(__FILE__, __LINE__, Log##severity).stream() #define _LOG2(category, severity) \ _log(__FILE__, __LINE__, _LOG_CATEGORY(category)(), Log##severity).stream() /* * Expand the LOG() macro to _LOG1() or _LOG2() based on the number of * arguments. */ #define _LOG_MACRO(_1, _2, NAME, ...) NAME #define LOG(...) _LOG_MACRO(__VA_ARGS__, _LOG2, _LOG1)(__VA_ARGS__) #else /* __DOXYGEN___ */ #define LOG(category, severity) #endif /* __DOXYGEN__ */ #ifndef NDEBUG #define ASSERT(condition) static_cast<void>(({ \ if (!(condition)) \ LOG(Fatal) << "assertion \"" #condition "\" failed"; \ })) #else #define ASSERT(condition) static_cast<void>(false && (condition)) #endif } /* namespace libcamera */ #endif /* __LIBCAMERA_LOG_H__ */