/* SPDX-License-Identifier: BSD-2-Clause */ /* * Copyright (C) 2019-2021, Raspberry Pi (Trading) Limited * * metadata.hpp - general metadata class */ #pragma once // A simple class for carrying arbitrary metadata, for example about an image. #include #include #include #include namespace RPiController { class Metadata { public: Metadata() = default; Metadata(Metadata const &other) { std::scoped_lock other_lock(other.mutex_); data_ = other.data_; } Metadata(Metadata &&other) { std::scoped_lock other_lock(other.mutex_); data_ = std::move(other.data_); other.data_.clear(); } template void Set(std::string const &tag, T const &value) { std::scoped_lock lock(mutex_); data_[tag] = value; } template int Get(std::string const &tag, T &value) const { std::scoped_lock lock(mutex_); auto it = data_.find(tag); if (it == data_.end()) return -1; value = std::any_cast(it->second); return 0; } void Clear() { std::scoped_lock lock(mutex_); data_.clear(); } Metadata &operator=(Metadata const &other) { std::scoped_lock lock(mutex_, other.mutex_); data_ = other.data_; return *this; } Metadata &operator=(Metadata &&other) { std::scoped_lock lock(mutex_, other.mutex_); data_ = std::move(other.data_); other.data_.clear(); return *this; } void Merge(Metadata &other) { std::scoped_lock lock(mutex_, other.mutex_); data_.merge(other.data_); } template T *GetLocked(std::string const &tag) { // This allows in-place access to the Metadata contents, // for which you should be holding the lock. auto it = data_.find(tag); if (it == data_.end()) return nullptr; return std::any_cast(&it->second); } template void SetLocked(std::string const &tag, T const &value) { // Use this only if you're holding the lock yourself. data_[tag] = value; } // Note: use of (lowercase) lock and unlock means you can create scoped // locks with the standard lock classes. // e.g. std::lock_guard lock(metadata) void lock() { mutex_.lock(); } void unlock() { mutex_.unlock(); } private: mutable std::mutex mutex_; std::map data_; }; } // namespace RPiController q' value=''/>
path: root/src/qcam/viewfinder_qt.cpp
blob: a05c75ed9e12e8a5c023b11d70991a877fb80629 (plain) 
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/* 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 <assert.h>
#include <stdint.h>
#include <utility>

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

#include <libcamera/formats.h>

#include "../cam/image.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