hyperion.ng/include/grabber/X11Grabber.h

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// Hyperion-utils includes
#include <utils/Image.h>
#include <utils/ColorRgb.h>
#include <utils/ImageResampler.h>
// X11 includes
#include <X11/Xlib.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/XShm.h>
#include <sys/ipc.h>
#include <sys/shm.h>
class X11Grabber
{
public:
X11Grabber(bool useXGetImage, int cropLeft, int cropRight, int cropTop, int cropBottom, int horizontalPixelDecimation, int verticalPixelDecimation);
virtual ~X11Grabber();
int open();
bool Setup();
Image<ColorRgb> & grab();
private:
ImageResampler _imageResampler;
bool _useXGetImage, _XShmAvailable, _XShmPixmapAvailable, _XRenderAvailable;
int _cropLeft;
int _cropRight;
int _cropTop;
int _cropBottom;
XImage* _xImage;
XShmSegmentInfo _shminfo;
/// Reference to the X11 display (nullptr if not opened)
Display* _x11Display;
Window _window;
XWindowAttributes _windowAttr;
Pixmap _pixmap;
XRenderPictFormat* _srcFormat;
XRenderPictFormat* _dstFormat;
XRenderPictureAttributes _pictAttr;
Picture _srcPicture;
Picture _dstPicture;
unsigned _screenWidth;
unsigned _screenHeight;
unsigned _croppedWidth;
unsigned _croppedHeight;
Image<ColorRgb> _image;
void freeResources();
void setupResources();
int updateScreenDimensions();
};