hyperion.ng/include/grabber/X11Wrapper.h

101 lines
2.4 KiB
C
Raw Normal View History

#pragma once
// QT includes
#include <QObject>
#include <QTimer>
// Utils includes
#include <utils/Image.h>
#include <utils/ColorRgb.h>
#include <utils/GrabbingMode.h>
#include <utils/VideoMode.h>
// Forward class declaration
class X11Grabber;
class Hyperion;
class ImageProcessor;
///
/// The X11Wrapper uses an instance of the X11Grabber to obtain ImageRgb's from the
/// displayed content. This ImageRgb is processed to a ColorRgb for each led and commmited to the
/// attached Hyperion.
///
class X11Wrapper: public QObject
{
Q_OBJECT
public:
///
/// Constructs the framebuffer frame grabber with a specified grab size and update rate.
///
/// @param[in] device X11 device name/path
/// @param[in] grabWidth The width of the grabbed image [pixels]
/// @param[in] grabHeight The height of the grabbed images [pixels]
/// @param[in] updateRate_Hz The image grab rate [Hz]
///
X11Wrapper(bool useXGetImage, int cropLeft, int cropRight, int cropTop, int cropBottom, int horizontalPixelDecimation, int verticalPixelDecimation, const unsigned updateRate_Hz, const int priority);
///
/// Destructor of this framebuffer frame grabber. Releases any claimed resources.
///
virtual ~X11Wrapper();
public slots:
///
/// Starts the grabber wich produces led values with the specified update rate
///
void start();
///
/// Performs a single frame grab and computes the led-colors
///
void action();
///
/// Stops the grabber
///
void stop();
///
/// Set the grabbing mode
/// @param[in] mode The new grabbing mode
///
void setGrabbingMode(const GrabbingMode mode);
///
/// Set the video mode (2D/3D)
/// @param[in] mode The new video mode
///
void setVideoMode(const VideoMode videoMode);
signals:
void emitImage(int priority, const Image<ColorRgb> & image, const int timeout_ms);
private:
/// The update rate [Hz]
const int _updateInterval_ms;
/// The timeout of the led colors [ms]
const int _timeout_ms;
/// The priority of the led colors
const int _priority;
/// The timer for generating events with the specified update rate
QTimer _timer;
/// The image used for grabbing frames
Image<ColorRgb> _image;
/// The actual grabber
X11Grabber * _grabber;
/// The processor for transforming images to led colors
ImageProcessor * _processor;
/// The list with computed led colors
std::vector<ColorRgb> _ledColors;
/// Pointer to Hyperion for writing led values
Hyperion * _hyperion;
bool _init;
bool _x11SetupSuccess;
};