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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__ */
"hl opt">::endl; return TestSkip; } cm_ = new CameraManager(); if (cm_->start()) { std::cout << "Failed to start camera manager" << std::endl; return TestFail; } cameraAdded_ = false; cameraRemoved_ = false; cm_->cameraAdded.connect(this, &HotplugTest::cameraAddedHandler); cm_->cameraRemoved.connect(this, &HotplugTest::cameraRemovedHandler); return 0; } int run() { DIR *dir; struct dirent *dirent; std::string uvcDeviceDir; dir = opendir(uvcDriverDir_.c_str()); /* Find a UVC device directory, which we can bind/unbind. */ while ((dirent = readdir(dir)) != nullptr) { if (!File::exists(uvcDriverDir_ + dirent->d_name + "/video4linux")) continue; uvcDeviceDir = dirent->d_name; break; } closedir(dir); /* If no UVC device found, skip the test. */ if (uvcDeviceDir.empty()) return TestSkip; /* Unbind a camera and process events. */ std::ofstream(uvcDriverDir_ + "unbind", std::ios::binary) << uvcDeviceDir; Timer timer; timer.start(1000); while (timer.isRunning() && !cameraRemoved_) Thread::current()->eventDispatcher()->processEvents(); if (!cameraRemoved_) { std::cout << "Camera unplug not detected" << std::endl; return TestFail; } /* Bind the camera again and process events. */ std::ofstream(uvcDriverDir_ + "bind", std::ios::binary) << uvcDeviceDir; timer.start(1000); while (timer.isRunning() && !cameraAdded_) Thread::current()->eventDispatcher()->processEvents(); if (!cameraAdded_) { std::cout << "Camera plug not detected" << std::endl; return TestFail; } return TestPass; } void cleanup() { cm_->stop(); delete cm_; } private: CameraManager *cm_; static const std::string uvcDriverDir_; bool cameraRemoved_; bool cameraAdded_; }; const std::string HotplugTest::uvcDriverDir_ = "/sys/bus/usb/drivers/uvcvideo/"; TEST_REGISTER(HotplugTest)