93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
#pragma once
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#include <QAbstractNativeEventFilter>
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// QT includes
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#include <QObject>
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#include <QJsonObject>
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#include <QJsonArray>
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#include <QJsonDocument>
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#include <utils/ColorRgb.h>
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#include <hyperion/Grabber.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <xcb/randr.h>
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#include <xcb/shm.h>
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#include <xcb/xcb.h>
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#include <xcb/xcb_image.h>
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class Logger;
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class XcbGrabber : public Grabber, public QAbstractNativeEventFilter
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{
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Q_OBJECT
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public:
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XcbGrabber(int cropLeft=0, int cropRight=0, int cropTop=0, int cropBottom=0);
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~XcbGrabber() override;
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bool open();
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bool setupDisplay();
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int grabFrame(Image<ColorRgb> & image, bool forceUpdate = false);
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int updateScreenDimensions(bool force = false);
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void setVideoMode(VideoMode mode) override;
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bool setWidthHeight(int width, int height) override { return true; }
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bool setPixelDecimation(int pixelDecimation) override;
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void setCropping(int cropLeft, int cropRight, int cropTop, int cropBottom) override;
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///
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/// @brief Discover XCB screens available (for configuration).
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///
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/// @param[in] params Parameters used to overwrite discovery default behaviour
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///
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/// @return A JSON structure holding a list of devices found
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///
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QJsonObject discover(const QJsonObject& params);
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private:
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#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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bool nativeEventFilter(const QByteArray & eventType, void * message, qintptr * result) override;
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#else
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bool nativeEventFilter(const QByteArray & eventType, void * message, long int * result) override;
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#endif
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void freeResources();
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void setupResources();
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void setupRender();
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void setupRandr();
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void setupShm();
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xcb_screen_t * getScreen(const xcb_setup_t *setup, int screen_num) const;
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xcb_render_pictformat_t findFormatForVisual(xcb_visualid_t visual) const;
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xcb_connection_t * _connection;
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xcb_screen_t * _screen;
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xcb_pixmap_t _pixmap;
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xcb_render_pictformat_t _srcFormat;
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xcb_render_pictformat_t _dstFormat;
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xcb_render_picture_t _srcPicture;
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xcb_render_picture_t _dstPicture;
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xcb_render_transform_t _transform;
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xcb_shm_seg_t _shminfo;
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int _screen_num;
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unsigned _screenWidth;
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unsigned _screenHeight;
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unsigned _src_x;
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unsigned _src_y;
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bool _XcbRenderAvailable;
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bool _XcbRandRAvailable;
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bool _XcbShmAvailable;
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bool _XcbShmPixmapAvailable;
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bool _isWayland;
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Logger * _logger;
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uint8_t * _shmData;
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int _XcbRandREventBase;
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};
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