Java Sys.initialize方法代碼示例

import org.lwjgl.Sys; //導入方法依賴的package包/類
/**
 * Constructs a new Cursor, with the given parameters. Mouse must have been created before you can create
 * Cursor objects. Cursor images are in ARGB format, but only one bit transparancy is guaranteed to be supported.
 * So to maximize portability, lwjgl applications should only create cursor images with 0x00 or 0xff as alpha values.
 * The constructor will copy the images and delays, so there's no need to keep them around.
 *
 * @param width cursor image width
 * @param height cursor image height
 * @param xHotspot the x coordinate of the cursor hotspot
 * @param yHotspot the y coordinate of the cursor hotspot
 * @param numImages number of cursor images specified. Must be 1 if animations are not supported.
 * @param images A buffer containing the images. The origin is at the lower left corner, like OpenGL.
 * @param delays An int buffer of animation frame delays, if numImages is greater than 1, else null
 * @throws LWJGLException if the cursor could not be created for any reason
 */
public Cursor(int width, int height, int xHotspot, int yHotspot, int numImages, IntBuffer images, IntBuffer delays) throws LWJGLException {
	synchronized (OpenGLPackageAccess.global_lock) {
		if ((getCapabilities() & CURSOR_ONE_BIT_TRANSPARENCY) == 0)
			throw new LWJGLException("Native cursors not supported");
		BufferChecks.checkBufferSize(images, width*height*numImages);
		if (delays != null)
			BufferChecks.checkBufferSize(delays, numImages);
		if (!Mouse.isCreated())
			throw new IllegalStateException("Mouse must be created before creating cursor objects");
		if (width*height*numImages > images.remaining())
			throw new IllegalArgumentException("width*height*numImages > images.remaining()");
		if (xHotspot >= width || xHotspot < 0)
			throw new IllegalArgumentException("xHotspot > width || xHotspot < 0");
		if (yHotspot >= height || yHotspot < 0)
			throw new IllegalArgumentException("yHotspot > height || yHotspot < 0");

		Sys.initialize();

		// Hmm
		yHotspot = height - 1 - yHotspot;

		// create cursor (or cursors if multiple images supplied)
		cursors = createCursors(width, height, xHotspot, yHotspot, numImages, images, delays);
	}
}
 

import org.lwjgl.Sys; //導入方法依賴的package包/類
/**
 * Constructs a new Cursor, with the given parameters. Mouse must have been created before you can create
 * Cursor objects. Cursor images are in ARGB format, but only one bit transparancy is guaranteed to be supported.
 * So to maximize portability, lwjgl applications should only create cursor images with 0x00 or 0xff as alpha values.
 * The constructor will copy the images and delays, so there's no need to keep them around.
 *
 * @param width cursor image width
 * @param height cursor image height
 * @param xHotspot the x coordinate of the cursor hotspot
 * @param yHotspot the y coordinate of the cursor hotspot
 * @param numImages number of cursor images specified. Must be 1 if animations are not supported.
 * @param images A buffer containing the images. The origin is at the lower left corner, like OpenGL.
 * @param delays An int buffer of animation frame delays, if numImages is greater than 1, else null
 * @throws LWJGLException if the cursor could not be created for any reason
 */
public Cursor(int width, int height, int xHotspot, int yHotspot, int numImages, IntBuffer images, IntBuffer delays) throws LWJGLException {
	synchronized (OpenGLPackageAccess.global_lock) {
		if ((getCapabilities() & CURSOR_ONE_BIT_TRANSPARENCY) == 0)
			throw new LWJGLException("Native cursors not supported");
		images = NondirectBufferWrapper.wrapBuffer(images, width*height*numImages);
		if (delays != null)
			delays = NondirectBufferWrapper.wrapBuffer(delays, numImages);
		if (!Mouse.isCreated())
			throw new IllegalStateException("Mouse must be created before creating cursor objects");
		if (width*height*numImages > images.remaining())
			throw new IllegalArgumentException("width*height*numImages > images.remaining()");
		if (xHotspot >= width || xHotspot < 0)
			throw new IllegalArgumentException("xHotspot > width || xHotspot < 0");
		if (yHotspot >= height || yHotspot < 0)
			throw new IllegalArgumentException("yHotspot > height || yHotspot < 0");

		Sys.initialize();

		// Hmm
		yHotspot = height - 1 - yHotspot;

		// create cursor (or cursors if multiple images supplied)
		cursors = createCursors(width, height, xHotspot, yHotspot, numImages, images, delays);
	}
}
 

import org.lwjgl.Sys; //導入方法依賴的package包/類
/**
 * Static initialization
 */
private static void initialize() {
	Sys.initialize();

	// Assign names to all the buttons
	buttonName = new String[16];
	for (int i = 0; i < 16; i++) {
		buttonName[i] = "BUTTON" + i;
		buttonMap.put(buttonName[i], i);
	}

	initialized = true;
}
 

import org.lwjgl.Sys; //導入方法依賴的package包/類
/**
 * Static initialization
 */
private static void initialize() {
	if (initialized)
		return;
	Sys.initialize();
	initialized = true;
}