index : libcamera/vivid.git	pobrn/rebase vivid
	libcamera pipeline handler for VIVID	git repository hosting on libcamera.org

summaryrefslogtreecommitdiff

log msg author committer range

path: root/test/file-descriptor.cpp

Age	Commit message (Collapse)	Author
2020-05-19	test: file-descriptor: Add "fd move" constructor test	Laurent Pinchart
	Add a test for the newly added "fd move" constructor. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-05-16	libcamera: Move internal headers to include/libcamera/internal/	Laurent Pinchart
	The libcamera internal headers are located in src/libcamera/include/. The directory is added to the compiler headers search path with a meson include_directories() directive, and internal headers are included with (e.g. for the internal semaphore.h header) #include "semaphore.h" All was well, until libcxx decided to implement the C++20 synchronization library. The __threading_support header gained a #include <semaphore.h> to include the pthread's semaphore support. As include_directories() adds src/libcamera/include/ to the compiler search path with -I, the internal semaphore.h is included instead of the pthread version. Needless to say, the compiler isn't happy. Three options have been considered to fix this issue: - Use -iquote instead of -I. The -iquote option instructs gcc to only consider the header search path for headers included with the "" version. Meson unfortunately doesn't support this option. - Rename the internal semaphore.h header. This was deemed to be the beginning of a long whack-a-mole game, where namespace clashes with system libraries would appear over time (possibly dependent on particular system configurations) and would need to be constantly fixed. - Move the internal headers to another directory to create a unique namespace through path components. This causes lots of churn in all the existing source files through the all project. The first option would be best, but isn't available to us due to missing support in meson. Even if -iquote support was added, we would need to fix the problem before a new version of meson containing the required support would be released. The third option is thus the only practical solution available. Bite the bullet, and do it, moving headers to include/libcamera/internal/. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2020-03-08	test: file-descriptor: Fix undefined O_TMPFILE compilation error	Laurent Pinchart
	O_TMPFILE is not defined by all libc implementations. libcamera has an internal definition in utils.h to work around this. Include utils.h in the test to fix the compilation error. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-12	test: file_descriptor: Add test	Niklas Söderlund
	Add a test which exercises the whole FileDescriptor interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

generated by cgit v1.2.1 (git 2.18.0) at 2025-01-03 05:08:43 +0000

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * viewfinder_qt.cpp - qcam - QPainter-based ViewFinder
 */

#include "viewfinder_qt.h"

#include <stdint.h>
#include <utility>

#include <QImage>
#include <QImageWriter>
#include <QMap>
#include <QMutexLocker>
#include <QPainter>
#include <QtDebug>

#include <libcamera/formats.h>

#include "format_converter.h"

static const QMap<libcamera::PixelFormat, QImage::Format> nativeFormats
{
#if QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)
	{ libcamera::formats::ABGR8888, QImage::Format_RGBA8888 },
#endif
	{ libcamera::formats::ARGB8888, QImage::Format_RGB32 },
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
	{ libcamera::formats::RGB888, QImage::Format_BGR888 },
#endif
	{ libcamera::formats::BGR888, QImage::Format_RGB888 },
};

ViewFinderQt::ViewFinderQt(QWidget *parent)
	: QWidget(parent), buffer_(nullptr)
{
	icon_ = QIcon(":camera-off.svg");
}

ViewFinderQt::~ViewFinderQt()
{
}

const QList<libcamera::PixelFormat> &ViewFinderQt::nativeFormats() const
{
	static const QList<libcamera::PixelFormat> formats = ::nativeFormats.keys();
	return formats;
}

int ViewFinderQt::setFormat(const libcamera::PixelFormat &format,
			    const QSize &size)
{
	image_ = QImage();

	/*
	 * If format conversion is needed, configure the converter and allocate
	 * the destination image.
	 */
	if (!::nativeFormats.contains(format)) {
		int ret = converter_.configure(format, size);
		if (ret < 0)
			return ret;

		image_ = QImage(size, QImage::Format_RGB32);

		qInfo() << "Using software format conversion from"
			<< format.toString().c_str();
	} else {
		qInfo() << "Zero-copy enabled";
	}

	format_ = format;
	size_ = size;

	updateGeometry();
	return 0;
}

void ViewFinderQt::render(libcamera::FrameBuffer *buffer, MappedBuffer *map)
{
	if (buffer->planes().size() != 1) {
		qWarning() << "Multi-planar buffers are not supported";
		return;
	}

	unsigned char *memory = static_cast<unsigned char *>(map->memory);
	size_t size = buffer->metadata().planes[0].bytesused;

	{
		QMutexLocker locker(&mutex_);

		if (::nativeFormats.contains(format_)) {
			/*
			 * If the frame format is identical to the display
			 * format, create a QImage that references the frame
			 * and store a reference to the frame buffer. The
			 * previously stored frame buffer, if any, will be
			 * released.
			 *
			 * \todo Get the stride from the buffer instead of
			 * computing it naively
			 */
			image_ = QImage(memory, size_.width(), size_.height(),
					size / size_.height(),
					::nativeFormats[format_]);
			std::swap(buffer, buffer_);
		} else {
			/*
			 * Otherwise, convert the format and release the frame
			 * buffer immediately.
			 */
			converter_.convert(memory, size, &image_);
		}
	}

	update();

	if (buffer)
		renderComplete(buffer);
}

void ViewFinderQt::stop()
{
	image_ = QImage();

	if (buffer_) {
		renderComplete(buffer_);
		buffer_ = nullptr;
	}

	update();
}

QImage ViewFinderQt::getCurrentImage()
{
	QMutexLocker locker(&mutex_);

	return image_.copy();
}

void ViewFinderQt::paintEvent(QPaintEvent *)
{
	QPainter painter(this);

	/* If we have an image, draw it. */
	if (!image_.isNull()) {
		painter.drawImage(rect(), image_, image_.rect());
		return;
	}

	/*
	 * Otherwise, draw the camera stopped icon. Render it to the pixmap if
	 * the size has changed.
	 */
	constexpr int margin = 20;

	if (vfSize_ != size() || pixmap_.isNull()) {
		QSize vfSize = size() - QSize{ 2 * margin, 2 * margin };
		QSize pixmapSize{ 1, 1 };
		pixmapSize.scale(vfSize, Qt::KeepAspectRatio);
		pixmap_ = icon_.pixmap(pixmapSize);

		vfSize_ = size();
	}

	QPoint point{ margin, margin };
	if (pixmap_.width() < width() - 2 * margin)
		point.setX((width() - pixmap_.width()) / 2);
	else
		point.setY((height() - pixmap_.height()) / 2);

	painter.setBackgroundMode(Qt::OpaqueMode);
	painter.drawPixmap(point, pixmap_);
}

QSize ViewFinderQt::sizeHint() const
{
	return size_.isValid() ? size_ : QSize(640, 480);
}