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