hyperion.ng/include/grabber/X11Grabber.h
redPanther 30b9c20611 new frame grabber handling (#137)
* - implement framegrabber type option
- framegrabber autoselect
- integrate x11 grabber in hyperiond

* add doxy

* v4l: select device by name
hyperiond: fix x11 grabber connection to kodichecker
config: tune default prios of boblight and v4l

* make v4l name finding case insensitive
2016-07-24 15:18:34 +02:00

89 lines
2.0 KiB
C++
Executable File

// Hyperion-utils includes
#include <utils/Image.h>
#include <utils/ColorRgb.h>
#include <utils/ImageResampler.h>
#include <utils/Logger.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();
///
/// Set the video mode (2D/3D)
/// @param[in] mode The new video mode
///
void setVideoMode(const VideoMode videoMode);
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();
/// gets resulting height of image
const unsigned getImageWidth() { return _croppedWidth; };
/// gets resulting width of image
const unsigned getImageHeight() { return _croppedHeight; };
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();
Logger * _log;
};