Refactor/Create APT/DNF Repository (#1648)

include/grabber/dispmanx/DispmanxFrameGrabber.h

@@ -0,0 +1,129 @@
+#pragma once
+
+// Utils includes
+#include <utils/Image.h>
+#include <utils/ColorRgba.h>
+#include <hyperion/Grabber.h>
+
+// dynamic linking
+#include <dlfcn.h>
+
+// BCM includes
+#ifdef BCM_FOUND
+	#include <bcm_host.h>
+#else
+	typedef int DISPMANX_DISPLAY_HANDLE_T;
+	typedef Image<ColorRgba> DISPMANX_RESOURCE;
+	typedef DISPMANX_RESOURCE* DISPMANX_RESOURCE_HANDLE_T;
+	typedef int VC_IMAGE_TYPE_T, DISPMANX_TRANSFORM_T;
+	const int VC_IMAGE_RGBA32 = 1, DISPMANX_SNAPSHOT_FILL = 1;
+	struct VC_RECT_T { int left, top, width, height; };
+	struct DISPMANX_MODEINFO_T { int width, height; uint32_t display_num; };
+#endif
+
+///
+/// The DispmanxFrameGrabber is used for creating snapshots of the display (screenshots) with a downsized and scaled resolution.
+///
+class DispmanxFrameGrabber : public Grabber
+{
+public:
+	///
+	/// Construct a DispmanxFrameGrabber that will capture snapshots with specified dimensions.
+	///
+	DispmanxFrameGrabber();
+	~DispmanxFrameGrabber() override;
+
+	///
+	/// @brief Determine if the bcm library is available.
+	///
+	/// @return Zero, on success (i.e. library is present), else negative
+	///
+	bool isAvailable();
+
+	///
+	/// @brief Opens the input device.
+	///
+	/// @return Zero, on success (i.e. device is ready), else negative
+	///
+	bool open();
+
+	///
+	/// @brief Setup a new capture screen, will free the previous one
+	/// @return True on success, false if no screen is found
+	///
+	bool setupScreen();
+
+	///
+	/// 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);
+
+	///
+	///@brief Set new width and height for dispmanx, overwrite Grabber.h impl
+	bool setWidthHeight(int width, int height) override;
+
+	QSize getScreenSize(int display=0) const;
+
+	///
+	/// @brief Discover DispmanX screens available (for configuration).
+	///
+	/// @param[in] params Parameters used to overwrite discovery default behaviour
+	///
+	/// @return A JSON structure holding a list of devices found
+	///
+	QJsonObject discover(const QJsonObject& params);
+
+private:
+	///
+	/// Updates the frame-grab flags as used by the VC library for frame grabbing
+	///
+	/// @param vc_flags  The snapshot grabbing mask
+	///
+	void setFlags(DISPMANX_TRANSFORM_T vc_flags);
+
+	///
+	/// @brief free _vc_resource and captureBuffer
+	///
+	void freeResources();
+
+	void* _lib;
+
+	/// Handle to the display that is being captured
+	DISPMANX_DISPLAY_HANDLE_T _vc_display;
+
+	/// Handle to the resource for storing the captured snapshot
+	DISPMANX_RESOURCE_HANDLE_T _vc_resource;
+
+	/// Rectangle of the captured resource that is transferred to user space
+	VC_RECT_T _rectangle;
+
+	/// Flags (transforms) for creating snapshots
+	DISPMANX_TRANSFORM_T _vc_flags;
+
+	// temp buffer when capturing with unsupported pitch size or
+	// when we need to crop the image
+	ColorRgba* _captureBuffer;
+
+	// size of the capture buffer in Pixels
+	unsigned _captureBufferSize;
+
+	// rgba output buffer
+	Image<ColorRgba>  _image_rgba;
+
+private:
+	void (*wr_bcm_host_init)(void);
+	void (*wr_bcm_host_deinit)(void);
+	DISPMANX_DISPLAY_HANDLE_T (*wr_vc_dispmanx_display_open)(uint32_t device);
+	int (*wr_vc_dispmanx_display_close)(DISPMANX_DISPLAY_HANDLE_T display);
+	int (*wr_vc_dispmanx_display_get_info)(DISPMANX_DISPLAY_HANDLE_T display, DISPMANX_MODEINFO_T *pinfo);
+	DISPMANX_RESOURCE_HANDLE_T (*wr_vc_dispmanx_resource_create)(VC_IMAGE_TYPE_T type, uint32_t width, uint32_t height, uint32_t *native_image_handle);
+	int (*wr_vc_dispmanx_resource_delete)(DISPMANX_RESOURCE_HANDLE_T res);
+	int (*wr_vc_dispmanx_resource_read_data)(DISPMANX_RESOURCE_HANDLE_T handle, const VC_RECT_T *p_rect, void *dst_address, uint32_t dst_pitch);
+	void (*wr_vc_dispmanx_rect_set)(VC_RECT_T *rectangle, int left, int top, int width, int height);
+	int (*wr_vc_dispmanx_snapshot) (DISPMANX_DISPLAY_HANDLE_T display, DISPMANX_RESOURCE_HANDLE_T snapshot_resource, DISPMANX_TRANSFORM_T transform);
+};

include/grabber/dispmanx/DispmanxWrapper.h

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+#pragma once
+
+// Utils includes
+#include <utils/ColorRgba.h>
+#include <hyperion/GrabberWrapper.h>
+#include <grabber/dispmanx/DispmanxFrameGrabber.h>
+
+///
+/// The DispmanxWrapper uses an instance of the DispmanxFrameGrabber to obtain ImageRgb's from the
+/// displayed content. This ImageRgb is forwarded to all Hyperion instances via HyperionDaemon
+///
+class DispmanxWrapper: public GrabberWrapper
+{
+	Q_OBJECT
+public:
+	///
+	/// Constructs the dispmanx frame grabber with a specified grab size and update rate.
+	///
+	/// @param[in] pixelDecimation   Decimation factor for image [pixels]
+	/// @param[in] updateRate_Hz  The image grab rate [Hz]
+	///
+	DispmanxWrapper( int updateRate_Hz=GrabberWrapper::DEFAULT_RATE_HZ,
+					 int pixelDecimation=GrabberWrapper::DEFAULT_PIXELDECIMATION
+					 );
+
+	bool screenInit();
+
+	bool available = false;
+
+	///
+	/// Starts the grabber which produces led values with the specified update rate
+	///
+	bool open() override;
+
+public slots:
+	///
+	/// Performs a single frame grab and computes the led-colors
+	///
+	void action() override;
+
+private:
+	/// The actual grabber
+	DispmanxFrameGrabber _grabber;
+};