hyperion.ng/include/grabber/X11Grabber.h
redPanther 569e59110e implement set videomode via json api (#457)
* implement set videomode via json api

* refactor grabbers:
- new base class
- move shared code to base class

* fix osx

* rework all cmakelist files with auto file collection. except leddevices (need further restructuring)

* store current video and grabbing mode

* add json stuff

* remove grabbingmode - we do not want to expose it
2017-08-04 23:08:15 +02:00

72 lines
1.6 KiB
C++
Executable File

#pragma once
#include <QObject>
// Hyperion-utils includes
#include <utils/ColorRgb.h>
#include <hyperion/Grabber.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 Grabber
{
public:
X11Grabber(bool useXGetImage, int cropLeft, int cropRight, int cropTop, int cropBottom, int horizontalPixelDecimation, int verticalPixelDecimation);
virtual ~X11Grabber();
bool Setup();
Image<ColorRgb> & grab();
///
/// 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);
///
/// update dimension according current screen
int updateScreenDimensions();
private:
bool _useXGetImage, _XShmAvailable, _XShmPixmapAvailable, _XRenderAvailable;
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;
XTransform _transform;
int _horizontalDecimation;
int _verticalDecimation;
unsigned _screenWidth;
unsigned _screenHeight;
Image<ColorRgb> _image;
void freeResources();
void setupResources();
};