hyperion.ng/include/grabber/XcbGrabber.h
Murat Seker 13205a9d11
Feature/xcb grabber (#912)
* Add Xcb grabber

* update compile instruction

Signed-off-by: Paulchen Panther <Paulchen-Panter@protonmail.com>

* Fix problem on resolution change + Make XCB default if X11 is not avaialable

* Fix decimation problem

Co-authored-by: Paulchen Panther <16664240+Paulchen-Panther@users.noreply.github.com>
Co-authored-by: Paulchen Panther <Paulchen-Panter@protonmail.com>
2020-08-03 12:31:39 +02:00

72 lines
1.8 KiB
C++

#pragma once
#include <QAbstractNativeEventFilter>
#include <QObject>
#include <utils/ColorRgb.h>
#include <hyperion/Grabber.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <xcb/randr.h>
#include <xcb/shm.h>
#include <xcb/xcb.h>
#include <xcb/xcb_image.h>
class Logger;
class XcbGrabber : public Grabber, public QAbstractNativeEventFilter
{
Q_OBJECT
public:
XcbGrabber(int cropLeft, int cropRight, int cropTop, int cropBottom, int pixelDecimation);
~XcbGrabber() override;
bool Setup();
int grabFrame(Image<ColorRgb> & image, bool forceUpdate = false);
int updateScreenDimensions(bool force = false);
void setVideoMode(VideoMode mode) override;
bool setWidthHeight(int width, int height) override { return true; }
void setPixelDecimation(int pixelDecimation) override;
void setCropping(unsigned cropLeft, unsigned cropRight, unsigned cropTop, unsigned cropBottom) override;
private:
bool nativeEventFilter(const QByteArray & eventType, void * message, long int * result) override;
void freeResources();
void setupResources();
void setupRender();
void setupRandr();
void setupShm();
xcb_screen_t * getScreen(const xcb_setup_t *setup, int screen_num) const;
xcb_render_pictformat_t findFormatForVisual(xcb_visualid_t visual) const;
xcb_connection_t * _connection;
xcb_screen_t * _screen;
xcb_pixmap_t _pixmap;
xcb_render_pictformat_t _srcFormat;
xcb_render_pictformat_t _dstFormat;
xcb_render_picture_t _srcPicture;
xcb_render_picture_t _dstPicture;
xcb_render_transform_t _transform;
xcb_shm_seg_t _shminfo;
int _pixelDecimation;
unsigned _screenWidth;
unsigned _screenHeight;
unsigned _src_x;
unsigned _src_y;
bool _XcbRenderAvailable;
bool _XcbRandRAvailable;
bool _XcbShmAvailable;
bool _XcbShmPixmapAvailable;
Logger * _logger;
uint8_t * _shmData;
int _XcbRandREventBase;
};