/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2019, Google Inc. * * timer.cpp - Generic timer */ #include #include #include #include #include "log.h" /** * \file timer.h * \brief Generic timer */ namespace libcamera { LOG_DEFINE_CATEGORY(Timer) /** * \class Timer * \brief Single-shot timer interface * * The Timer class models a single-shot timer that is started with start() and * emits the \ref timeout signal when it times out. * * Once started the timer will run until it times out. It can be stopped with * stop(), and once it times out or is stopped, can be started again with * start(). */ /** * \brief Construct a timer */ Timer::Timer() : interval_(0), deadline_(0) { } /** * \brief Start or restart the timer with a timeout of \a msec * \param msec The timer duration in milliseconds * * If the timer is already running it will be stopped and restarted. */ void Timer::start(unsigned int msec) { struct timespec tp; clock_gettime(CLOCK_MONOTONIC, &tp); interval_ = msec; deadline_ = tp.tv_sec * 1000000000ULL + tp.tv_nsec + msec * 1000000ULL; LOG(Timer, Debug) << "Starting timer " << this << " with interval " << msec << ": deadline " << deadline_; CameraManager::instance()->eventDispatcher()->registerTimer(this); } /** * \brief Stop the timer * * After this function returns the timer is guaranteed not to emit the * \ref timeout signal. * * If the timer is not running this function performs no operation. */ void Timer::stop() { CameraManager::instance()->eventDispatcher()->unregisterTimer(this); deadline_ = 0; } /** * \brief Check if the timer is running * \return True if the timer is running, false otherwise */ bool Timer::isRunning() const { return deadline_ != 0; } /** * \fn Timer::interval() * \brief Retrieve the timer interval * \return The timer interval in milliseconds */ /** * \fn Timer::deadline() * \brief Retrieve the timer deadline * \return The timer deadline in nanoseconds */ /** * \var Timer::timeout * \brief Signal emitted when the timer times out * * The timer pointer is passed as a parameter. */ } /* namespace libcamera */ /select>
path: root/src/android/camera_buffer.h
blob: b4531c800fdb8cf5440af43f2b4d60a02da7c924 (plain) 
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2021, Google Inc.
 *
 * camera_buffer.h - Frame buffer handling interface definition
 */

#pragma once

#include <hardware/camera3.h>

#include <libcamera/base/class.h>
#include <libcamera/base/span.h>
#include <libcamera/geometry.h>
#include <libcamera/pixel_format.h>

class CameraBuffer final : public libcamera::Extensible
{
	LIBCAMERA_DECLARE_PRIVATE()

public:
	CameraBuffer(buffer_handle_t camera3Buffer,
		     libcamera::PixelFormat pixelFormat,
		     const libcamera::Size &size, int flags);
	~CameraBuffer();

	bool isValid() const;

	unsigned int numPlanes() const;

	libcamera::Span<const uint8_t> plane(unsigned int plane) const;
	libcamera::Span<uint8_t> plane(unsigned int plane);

	unsigned int stride(unsigned int plane) const;
	unsigned int offset(unsigned int plane) const;
	unsigned int size(unsigned int plane) const;

	size_t jpegBufferSize(size_t maxJpegBufferSize) const;
};

#define PUBLIC_CAMERA_BUFFER_IMPLEMENTATION				\
CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer,		\
			   libcamera::PixelFormat pixelFormat,		\
			   const libcamera::Size &size, int flags)	\
	: Extensible(std::make_unique<Private>(this, camera3Buffer,	\
					       pixelFormat, size,	\
					       flags))			\
{									\
}									\
CameraBuffer::~CameraBuffer()						\
{									\
}									\
bool CameraBuffer::isValid() const					\
{									\
	return _d()->isValid();						\
}									\
unsigned int CameraBuffer::numPlanes() const				\
{									\
	return _d()->numPlanes();					\
}									\
Span<const uint8_t> CameraBuffer::plane(unsigned int plane) const	\
{									\
	return const_cast<Private *>(_d())->plane(plane);		\
}									\
Span<uint8_t> CameraBuffer::plane(unsigned int plane)			\
{									\
	return _d()->plane(plane);					\
}									\
unsigned int CameraBuffer::stride(unsigned int plane) const		\
{									\
	return _d()->stride(plane);					\
}									\
unsigned int CameraBuffer::offset(unsigned int plane) const		\
{									\
	return _d()->offset(plane);					\
}									\
unsigned int CameraBuffer::size(unsigned int plane) const		\
{									\
	return _d()->size(plane);					\
}									\
size_t CameraBuffer::jpegBufferSize(size_t maxJpegBufferSize) const	\
{									\
	return _d()->jpegBufferSize(maxJpegBufferSize);			\
}
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