- refactored framebuffer grabber to use ImageResampler

- added OsxGrabber for OSX
- added binary for imx6 (cubox-i) and updated install script


Former-commit-id: 2c55e292c842c67e54ce36bd91e4f6303b98687a

include/grabber/FramebufferWrapper.h

@@ -7,7 +7,6 @@
 // Utils includes
 #include <utils/Image.h>
 #include <utils/ColorRgb.h>
-#include <utils/ColorRgba.h>
 #include <utils/GrabbingMode.h>
 #include <utils/VideoMode.h>
 
@@ -81,7 +80,7 @@ private:
 	QTimer _timer;
 
 	/// The image used for grabbing frames
-	Image<ColorRgba> _image;
+	Image<ColorRgb> _image;
 	/// The actual grabber
 	FramebufferFrameGrabber * _frameGrabber;
 	/// The processor for transforming images to led colors

include/grabber/OsxWrapper.h

@@ -0,0 +1,95 @@
+#pragma once
+
+// QT includes
+#include <QObject>
+#include <QTimer>
+
+// Utils includes
+#include <utils/Image.h>
+#include <utils/ColorRgb.h>
+#include <utils/ColorRgba.h>
+#include <utils/GrabbingMode.h>
+#include <utils/VideoMode.h>
+
+// Forward class declaration
+class OsxFrameGrabber;
+class Hyperion;
+class ImageProcessor;
+
+///
+/// The OsxWrapper uses an instance of the OsxFrameGrabber to obtain ImageRgb's from the
+/// displayed content. This ImageRgb is processed to a ColorRgb for each led and commmited to the
+/// attached Hyperion.
+///
+class OsxWrapper: public QObject
+{
+	Q_OBJECT
+public:
+	///
+	/// Constructs the osx frame grabber with a specified grab size and update rate.
+	///
+	/// @param[in] display Index of the display to grab
+	/// @param[in] grabWidth  The width of the grabbed image [pixels]
+	/// @param[in] grabHeight  The height of the grabbed images [pixels]
+	/// @param[in] updateRate_Hz  The image grab rate [Hz]
+	/// @param[in] hyperion  The instance of Hyperion used to write the led values
+	///
+	OsxWrapper(const unsigned display, const unsigned grabWidth, const unsigned grabHeight, const unsigned updateRate_Hz, Hyperion * hyperion);
+
+	///
+	/// Destructor of this osx frame grabber. Releases any claimed resources.
+	///
+	virtual ~OsxWrapper();
+
+public slots:
+	///
+	/// Starts the grabber wich produces led values with the specified update rate
+	///
+	void start();
+
+	///
+	/// Performs a single frame grab and computes the led-colors
+	///
+	void action();
+
+	///
+	/// Stops the grabber
+	///
+	void stop();
+
+	///
+	/// Set the grabbing mode
+	/// @param[in] mode The new grabbing mode
+	///
+	void setGrabbingMode(const GrabbingMode mode);
+
+	///
+	/// Set the video mode (2D/3D)
+	/// @param[in] mode The new video mode
+	///
+	void setVideoMode(const VideoMode videoMode);
+
+private:
+	/// The update rate [Hz]
+	const int _updateInterval_ms;
+	/// The timeout of the led colors [ms]
+	const int _timeout_ms;
+	/// The priority of the led colors
+	const int _priority;
+
+	/// The timer for generating events with the specified update rate
+	QTimer _timer;
+
+	/// The image used for grabbing frames
+	Image<ColorRgb> _image;
+	/// The actual grabber
+	OsxFrameGrabber * _frameGrabber;
+	/// The processor for transforming images to led colors
+	ImageProcessor * _processor;
+
+	/// The list with computed led colors
+	std::vector<ColorRgb> _ledColors;
+
+	/// Pointer to Hyperion for writing led values
+	Hyperion * _hyperion;
+};

include/utils/PixelFormat.h

@@ -9,6 +9,8 @@
 enum PixelFormat {
 	PIXELFORMAT_YUYV,
 	PIXELFORMAT_UYVY,
+	PIXELFORMAT_BGR16,
+	PIXELFORMAT_BGR24,
     PIXELFORMAT_RGB32,
     PIXELFORMAT_BGR32,
     PIXELFORMAT_NO_CHANGE
@@ -27,6 +29,14 @@ inline PixelFormat parsePixelFormat(std::string pixelFormat)
 	{
 		return PIXELFORMAT_UYVY;
 	}
+    else if (pixelFormat == "bgr16")
+    {
+        return PIXELFORMAT_BGR16;
+    }
+    else if (pixelFormat == "bgr24")
+    {
+        return PIXELFORMAT_BGR24;
+    }
     else if (pixelFormat == "rgb32")
     {
         return PIXELFORMAT_RGB32;