hyperion.ng/include/grabber/FramebufferFrameGrabber.h
2018-12-27 23:11:32 +01:00

48 lines
1.3 KiB
C++

#pragma once
// Utils includes
#include <utils/ColorRgb.h>
#include <hyperion/Grabber.h>
///
/// The FramebufferFrameGrabber is used for creating snapshots of the display (screenshots)
///
class FramebufferFrameGrabber : public Grabber
{
public:
///
/// Construct a FramebufferFrameGrabber that will capture snapshots with specified dimensions.
///
/// @param[in] device The framebuffer device name/path
/// @param[in] width The width of the captured screenshot
/// @param[in] height The heigth of the captured screenshot
///
FramebufferFrameGrabber(const QString & device, const unsigned width, const unsigned height);
~FramebufferFrameGrabber();
///
/// Captures a single snapshot of the display and writes the data to the given image. The
/// provided image should have the same dimensions as the configured values (_width and
/// _height)
///
/// @param[out] image The snapped screenshot (should be initialized with correct width and
/// height)
///
int grabFrame(Image<ColorRgb> & image);
///
/// @brief Overwrite Grabber.h implememtation
///
virtual void setDevicePath(const QString& path);
private:
/// Framebuffer file descriptor
int _fbfd;
/// Pointer to framebuffer
unsigned char * _fbp;
/// Framebuffer device e.g. /dev/fb0
QString _fbDevice;
};