C++ (Cpp) updateScreenDimensions Examples

Example #1

File: main.cpp Project: jaumem/MoSync

extern "C" int MAMain()
{
	bool run = true;

	updateScreenDimensions();
	registerSensors();
	setFont();

	while (run)
	{
		/// Get any available events.
		/// On back press close program.
		MAEvent event;
		while(maGetEvent(&event))
		{
			if(event.type == EVENT_TYPE_SENSOR)
			{
				memcpy(gSensorValue[event.sensor.type],
						event.sensor.values, SENSOR_VALUES * sizeof(float));
			}
			else if((event.type == EVENT_TYPE_KEY_PRESSED) &&
					(event.key == MAK_BACK))
			{
				run = false;
			}

			drawSensorOutput();

			maUpdateScreen();
		}
	}

	unregisterSensors();
};

Example #2

File: X11Grabber.cpp Project: 7h30n3/hyperion

Image<ColorRgb> & X11Grabber::grab()
{
	updateScreenDimensions(); 

	if (_XRenderAvailable && !_useXGetImage) {
		XRenderComposite( _x11Display,		// *dpy,
							PictOpSrc,		// op,
							_srcPicture,		// src
							None,			// mask
							_dstPicture,		// dst
							_cropLeft,		// src_x
							_cropTop,		// src_y
							0,			// mask_x
							0,			// mask_y
							0,			// dst_x
							0,			// dst_y
								_croppedWidth,	// width
							_croppedHeight);	// height
	
		XSync(_x11Display, False);

		if (_XShmAvailable) {
			XShmGetImage(_x11Display, _pixmap, _xImage, 0, 0, AllPlanes);
		} else {
			_xImage = XGetImage(_x11Display, _pixmap, 0, 0, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);   
		}
	} else {
		if (_XShmAvailable && !_useXGetImage) {
			XShmGetImage(_x11Display, _window, _xImage, _cropLeft, _cropTop, AllPlanes);
		} else {
			_xImage = XGetImage(_x11Display, _window, _cropLeft, _cropTop, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);
		}
	}

	if (_xImage == nullptr)
	{
		std::cerr << "X11GRABBER ERROR: Grab failed" << std::endl;
		return _image;
	}

	_imageResampler.processImage(reinterpret_cast<const uint8_t *>(_xImage->data), _xImage->width, _xImage->height, _xImage->bytes_per_line, PIXELFORMAT_BGR32, _image);

	return _image;
}

Example #3

File: X11Grabber.cpp Project: XfableX/hyperion.ng

Image<ColorRgb> & X11Grabber::grab()
{
	updateScreenDimensions(); 

	if (_XRenderAvailable && !_useXGetImage)
	{
		double scale_x = static_cast<double>(_windowAttr.width / _horizontalDecimation) / static_cast<double>(_windowAttr.width);
		double scale_y = static_cast<double>(_windowAttr.height / _verticalDecimation) / static_cast<double>(_windowAttr.height);
		double scale = std::min(scale_y, scale_x);
		
		_transform =
		{
			{
				{
					XDoubleToFixed(1),
					XDoubleToFixed(0),
					XDoubleToFixed(0)
				},
				{
					XDoubleToFixed(0),
					XDoubleToFixed(1),
					XDoubleToFixed(0)
				},
				{
					XDoubleToFixed(0),
					XDoubleToFixed(0),
					XDoubleToFixed(scale)
				}
			}
		};
		
		XRenderSetPictureTransform (_x11Display, _srcPicture, &_transform);
		
		XRenderComposite( _x11Display,					// dpy
					PictOpSrc,				// op
					_srcPicture,				// src
					None,					// mask
					_dstPicture,				// dst
					_cropLeft / _horizontalDecimation,	// src_x _cropLeft
					_cropTop / _verticalDecimation,		// src_y _cropTop
					0,					// mask_x
					0,					// mask_y
					0,					// dst_x
					0,					// dst_y
					_croppedWidth,				// width
					_croppedHeight);			// height
    
		XSync(_x11Display, False);
		
		if (_XShmAvailable)
		{
			XShmGetImage(_x11Display, _pixmap, _xImage, 0, 0, AllPlanes);
		}
		else
		{
			_xImage = XGetImage(_x11Display, _pixmap, 0, 0, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);   
		}
	}
	else
	{
		if (_XShmAvailable && !_useXGetImage) {
			XShmGetImage(_x11Display, _window, _xImage, _cropLeft, _cropTop, AllPlanes);
		}
		else
		{
			_xImage = XGetImage(_x11Display, _window, _cropLeft, _cropTop, _croppedWidth, _croppedHeight, AllPlanes, ZPixmap);
		}
	}

	if (_xImage == nullptr)
	{
		Error(_log, "Grab Failed!");
		return _image;
	}

	_imageResampler.processImage(reinterpret_cast<const uint8_t *>(_xImage->data), _xImage->width, _xImage->height, _xImage->bytes_per_line, PIXELFORMAT_BGR32, _image);

	return _image;
}