org.lwjgl.glfw.GLFWImage Java Examples

/**
 * Adds or replaces a cursor.
 * 
 * @param cursor       Cursor to be replaced
 * @param customCursor Cursor image
 */
public static void addCursor(Cursor cursor, CustomCursor customCursor) {
	runLater(() -> {
		try (MemoryStack stack = stackPush()) {
			IntBuffer w = stack.mallocInt(1);
			IntBuffer h = stack.mallocInt(1);
			IntBuffer comp = stack.mallocInt(1);

			ByteBuffer imageBuffer;
			try {
				imageBuffer = Context.ioResourceToByteBuffer(customCursor.getPath(), 1 * 1024);
			} catch (IOException e) {
				throw new GLFWException(e);
			}

			if (!stbi_info_from_memory(imageBuffer, w, h, comp))
				throw new DecodeTextureException("Failed to read image information: " + stbi_failure_reason());

			ByteBuffer image = stbi_load_from_memory(imageBuffer, w, h, comp, 0);
			if (image == null)
				throw new DecodeTextureException("Failed to load image: " + stbi_failure_reason());

			GLFWImage img = GLFWImage.mallocStack(stack).set(w.get(0), h.get(0), image);
			long custom = glfwCreateCursor(img, customCursor.getHotX(), customCursor.getHotY());

			memFree(imageBuffer);
			stbi_image_free(image);

			Long prev = cursors.put(cursor, custom);
			if (prev != null)
				glfwDestroyCursor(prev);
		}
	});
}
 

public void create(int width, int height)
{
	setWidth(width);
	setHeight(height);
	
	glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);	
	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);	
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);	
	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);	
	
	window = glfwCreateWindow(width, height, "OREON ENGINE Programming Tutorial Series", 0, 0);
	
	if(window == 0) {
	    throw new RuntimeException("Failed to create window");
	}
	
	ByteBuffer bufferedImage = ImageLoader.loadImageToByteBuffer("./res/logo/oreon_lwjgl_icon32.png");
	
	GLFWImage image = GLFWImage.malloc();
	
	image.set(32, 32, bufferedImage);
	
	GLFWImage.Buffer images = GLFWImage.malloc(1);
       images.put(0, image);
	
	glfwSetWindowIcon(window, images);
	
	glfwMakeContextCurrent(window);
	GL.createCapabilities();
	glfwShowWindow(window);
}
 

private long createGlfwCursor(JmeCursor jmeCursor) {
    GLFWImage glfwImage = new GLFWImage(BufferUtils.createByteBuffer(GLFWImage.SIZEOF));

    // TODO: currently animated cursors are not supported
    IntBuffer imageData = jmeCursor.getImagesData();
    ByteBuffer buf = BufferUtils.createByteBuffer(imageData.capacity() * 4);
    buf.asIntBuffer().put(imageData);

    glfwImage.set(jmeCursor.getWidth(), jmeCursor.getHeight(), buf);

    return glfwCreateCursor(glfwImage, jmeCursor.getXHotSpot(), jmeCursor.getYHotSpot());
}
 

Lwjgl3Mini2DxCursor(Lwjgl3Mini2DxWindow window, Pixmap pixmap, int xHotspot, int yHotspot) {
	this.window = window;
	if (pixmap.getFormat() != Pixmap.Format.RGBA8888) {
		throw new GdxRuntimeException("Cursor image pixmap is not in RGBA8888 format.");
	}

	if ((pixmap.getWidth() & (pixmap.getWidth() - 1)) != 0) {
		throw new GdxRuntimeException(
				"Cursor image pixmap width of " + pixmap.getWidth() + " is not a power-of-two greater than zero.");
	}

	if ((pixmap.getHeight() & (pixmap.getHeight() - 1)) != 0) {
		throw new GdxRuntimeException("Cursor image pixmap height of " + pixmap.getHeight()
				+ " is not a power-of-two greater than zero.");
	}

	if (xHotspot < 0 || xHotspot >= pixmap.getWidth()) {
		throw new GdxRuntimeException("xHotspot coordinate of " + xHotspot
				+ " is not within image width bounds: [0, " + pixmap.getWidth() + ").");
	}

	if (yHotspot < 0 || yHotspot >= pixmap.getHeight()) {
		throw new GdxRuntimeException("yHotspot coordinate of " + yHotspot
				+ " is not within image height bounds: [0, " + pixmap.getHeight() + ").");
	}

	this.pixmapCopy = new Pixmap(pixmap.getWidth(), pixmap.getHeight(), Pixmap.Format.RGBA8888);
	this.pixmapCopy.setBlending(Pixmap.Blending.None);
	this.pixmapCopy.drawPixmap(pixmap, 0, 0);

	glfwImage = GLFWImage.malloc();
	glfwImage.width(pixmapCopy.getWidth());
	glfwImage.height(pixmapCopy.getHeight());
	glfwImage.pixels(pixmapCopy.getPixels());
	glfwCursor = GLFW.glfwCreateCursor(glfwImage, xHotspot, yHotspot);
	cursors.add(this);
}
 

public void setIcon(String path){
	
	ByteBuffer bufferedImage = ResourceLoader.loadImageToByteBuffer(path);
	
	GLFWImage image = GLFWImage.malloc();
	
	image.set(32, 32, bufferedImage);
	
	GLFWImage.Buffer images = GLFWImage.malloc(1);
	images.put(0, image);
	
	glfwSetWindowIcon(getId(), images);
}