src/android/mm/meson.build

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * main_window.h - qcam - Main application window
 */

#pragma once

#include <memory>
#include <vector>

#include <libcamera/camera.h>
#include <libcamera/camera_manager.h>
#include <libcamera/controls.h>
#include <libcamera/framebuffer.h>
#include <libcamera/framebuffer_allocator.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>

#include <QElapsedTimer>
#include <QIcon>
#include <QMainWindow>
#include <QMutex>
#include <QObject>
#include <QPushButton>
#include <QQueue>
#include <QTimer>

#include "../common/stream_options.h"

#include "viewfinder.h"

class QAction;

class CameraSelectorDialog;
class Image;
class HotplugEvent;

enum {
	OptCamera = 'c',
	OptHelp = 'h',
	OptRenderer = 'r',
	OptStream = 's',
	OptVerbose = 'v',
};

class MainWindow : public QMainWindow
{
	Q_OBJECT

public:
	MainWindow(libcamera::CameraManager *cm,
		   const OptionsParser::Options &options);
	~MainWindow();

	bool event(QEvent *e) override;

private Q_SLOTS:
	void quit();
	void updateTitle();

	void switchCamera();
	void toggleCapture(bool start);

	void saveImageAs();
	void captureRaw();
	void processRaw(libcamera::FrameBuffer *buffer,
			const libcamera::ControlList &metadata);

	void renderComplete(libcamera::FrameBuffer *buffer);

private:
	int createToolbars();

	std::string chooseCamera();
	int openCamera();

	int startCapture();
	void stopCapture();

	void addCamera(std::shared_ptr<libcamera::Camera> camera);
	void removeCamera(std::shared_ptr<libcamera::Camera> camera);

	int queueRequest(libcamera::Request *request);
	void requestComplete(libcamera::Request *request);
	void processCapture();
	void processHotplug(HotplugEvent *e);
	void processViewfinder(libcamera::FrameBuffer *buffer);

	/* UI elements */
	QToolBar *toolbar_;
	QAction *startStopAction_;
	QPushButton *cameraSelectButton_;
	QAction *saveRaw_;
	ViewFinder *viewfinder_;

	QIcon iconPlay_;
	QIcon iconStop_;

	QString title_;
	QTimer titleTimer_;

	CameraSelectorDialog *cameraSelectorDialog_;

	/* Options */
	const OptionsParser::Options &options_;

	/* Camera manager, camera, configuration and buffers */
	libcamera::CameraManager *cm_;
	std::shared_ptr<libcamera::Camera> camera_;
	libcamera::FrameBufferAllocator *allocator_;

	std::unique_ptr<libcamera::CameraConfiguration> config_;
	std::map<libcamera::FrameBuffer *, std::unique_ptr<Image>> mappedBuffers_;

	/* Capture state, buffers queue and statistics */
	bool isCapturing_;
	bool captureRaw_;
	libcamera::Stream *vfStream_;
	libcamera::Stream *rawStream_;
	std::map<const libcamera::Stream *, QQueue<libcamera::FrameBuffer *>> freeBuffers_;
	QQueue<libcamera::Request *> doneQueue_;
	QQueue<libcamera::Request *> freeQueue_;
	QMutex mutex_; /* Protects freeBuffers_, doneQueue_, and freeQueue_ */

	uint64_t lastBufferTime_;
	QElapsedTimer frameRateInterval_;
	uint32_t previousFrames_;
	uint32_t framesCaptured_;

	std::vector<std::unique_ptr<libcamera::Request>> requests_;
};
Age	Commit message (Collapse)	Author
2021-12-06	android: Introduce PlatformFrameBufferAllocator	Hirokazu Honda
	The existing FrameBufferAllocator is not allowed to allocate a new buffer while Camera is running. This introduces PlatformFrameBufferAllocator. It allocates FrameBuffer using cros::CameraBufferManager on ChromeOS and gralloc on non ChromeOS platform. The allocated FrameBuffer owns the underlying buffer but must be destroyed before PlatformFrameBufferAllocator is destroyed. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-03-03	android: Introduce Chromium OS buffer manager	Jacopo Mondi
	Introduce the CameraBuffer backend for the Chromium OS operating system and the associated meson option. The Chromium OS CameraBuffer implementation uses the cros::CameraBufferManager class to perform mapping of 1 plane and multiplane buffers and to retrieve size information. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-03-03	android: Introduce CameraBuffer interface	Jacopo Mondi
	In order to provide support for different memory backends, move the MappedCamera3Buffer class definition outside of the CameraDevice class to its own file and rename it in CameraBuffer. The interface defined in camera_buffer.h will be implemented by different backends that will be placed in the src/android/mm subdirectory. Provide a first implementation for the 'generic android' backend which matches the existing one. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>