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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
#pragma once
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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/VideoMode.h>
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#include <utils/ImageResampler.h>
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#include <utils/Logger.h>
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///
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/// The FramebufferFrameGrabber is used for creating snapshots of the display (screenshots)
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///
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class FramebufferFrameGrabber
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{
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public:
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///
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/// Construct a FramebufferFrameGrabber that will capture snapshots with specified dimensions.
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///
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/// @param[in] device The framebuffer device name/path
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/// @param[in] width The width of the captured screenshot
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/// @param[in] height The heigth of the captured screenshot
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///
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FramebufferFrameGrabber(const std::string & device, const unsigned width, const unsigned height);
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~FramebufferFrameGrabber();
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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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///
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/// Captures a single snapshot of the display and writes the data to the given image. The
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/// provided image should have the same dimensions as the configured values (_width and
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/// _height)
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///
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/// @param[out] image The snapped screenshot (should be initialized with correct width and
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/// height)
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///
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void grabFrame(Image<ColorRgb> & image);
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private:
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/// Framebuffer file descriptor
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int _fbfd;
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/// Pointer to framebuffer
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unsigned char * _fbp;
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/// Framebuffer device e.g. /dev/fb0
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const std::string _fbDevice;
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/// With of the captured snapshot [pixels]
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const unsigned _width;
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/// Height of the captured snapshot [pixels]
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const unsigned _height;
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/// Image resampler for downscaling the image
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ImageResampler * _imgResampler;
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Logger * _log;
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};
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