Examples with GLFWCursorPosCallback org.lwjgl.glfw.GLFWCursorPosCallback used on opensource projects

Example 1 with GLFWCursorPosCallback

use of org.lwjgl.glfw.GLFWCursorPosCallback in project lwjgl3-demos by LWJGL.

the class Demo20 method init.

private void init() throws IOException {
    glfwSetErrorCallback(errCallback = new GLFWErrorCallback() {

        private GLFWErrorCallback delegate = GLFWErrorCallback.createPrint(System.err);

        @Override
        public void invoke(int error, long description) {
            if (error == GLFW_VERSION_UNAVAILABLE)
                System.err.println("This demo requires OpenGL 2.0 or higher.");
            delegate.invoke(error, description);
        }

        @Override
        public void free() {
            delegate.free();
        }
    });
    if (!glfwInit())
        throw new IllegalStateException("Unable to initialize GLFW");
    glfwDefaultWindowHints();
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
    glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
    glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
    window = glfwCreateWindow(width, height, "Raytracing Demo (fragment shader)", 0L, 0L);
    if (window == 0L) {
        throw new AssertionError("Failed to create the GLFW window");
    }
    System.out.println("Press keypad '+' or 'page up' to increase the number of bounces.");
    System.out.println("Press keypad '-' or 'page down' to decrease the number of bounces.");
    glfwSetKeyCallback(window, keyCallback = new GLFWKeyCallback() {

        @Override
        public void invoke(long window, int key, int scancode, int action, int mods) {
            if (action != GLFW_RELEASE) {
                return;
            }
            if (key == GLFW_KEY_ESCAPE) {
                glfwSetWindowShouldClose(window, true);
            } else if (key == GLFW_KEY_KP_ADD || key == GLFW_KEY_PAGE_UP) {
                int newBounceCount = Math.min(4, Demo20.this.bounceCount + 1);
                if (newBounceCount != Demo20.this.bounceCount) {
                    Demo20.this.bounceCount = newBounceCount;
                    System.out.println("Ray bounce count is now: " + Demo20.this.bounceCount);
                    Demo20.this.frameNumber = 0;
                }
            } else if (key == GLFW_KEY_KP_SUBTRACT || key == GLFW_KEY_PAGE_DOWN) {
                int newBounceCount = Math.max(1, Demo20.this.bounceCount - 1);
                if (newBounceCount != Demo20.this.bounceCount) {
                    Demo20.this.bounceCount = newBounceCount;
                    System.out.println("Ray bounce count is now: " + Demo20.this.bounceCount);
                    Demo20.this.frameNumber = 0;
                }
            }
        }
    });
    glfwSetFramebufferSizeCallback(window, fbCallback = new GLFWFramebufferSizeCallback() {

        @Override
        public void invoke(long window, int width, int height) {
            if (width > 0 && height > 0 && (Demo20.this.width != width || Demo20.this.height != height)) {
                Demo20.this.width = width;
                Demo20.this.height = height;
                Demo20.this.resetFramebuffer = true;
                Demo20.this.frameNumber = 0;
            }
        }
    });
    glfwSetCursorPosCallback(window, cpCallback = new GLFWCursorPosCallback() {

        @Override
        public void invoke(long window, double x, double y) {
            Demo20.this.mouseX = (float) x;
            if (mouseDown) {
                Demo20.this.frameNumber = 0;
            }
        }
    });
    glfwSetMouseButtonCallback(window, mbCallback = new GLFWMouseButtonCallback() {

        @Override
        public void invoke(long window, int button, int action, int mods) {
            if (action == GLFW_PRESS) {
                Demo20.this.mouseDownX = Demo20.this.mouseX;
                Demo20.this.mouseDown = true;
            } else if (action == GLFW_RELEASE) {
                Demo20.this.mouseDown = false;
                Demo20.this.rotationAboutY = Demo20.this.currRotationAboutY;
            }
        }
    });
    GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
    glfwSetWindowPos(window, (vidmode.width() - width) / 2, (vidmode.height() - height) / 2);
    glfwMakeContextCurrent(window);
    glfwSwapInterval(0);
    glfwShowWindow(window);
    IntBuffer framebufferSize = BufferUtils.createIntBuffer(2);
    nglfwGetFramebufferSize(window, memAddress(framebufferSize), memAddress(framebufferSize) + 4);
    width = framebufferSize.get(0);
    height = framebufferSize.get(1);
    GLCapabilities caps = GL.createCapabilities();
    if (!caps.GL_EXT_framebuffer_object) {
        throw new AssertionError("This demo requires the EXT_framebuffer_object extensions");
    }
    if (!caps.GL_ARB_texture_float) {
        throw new AssertionError("This demo requires the ARB_texture_float extensions");
    }
    debugProc = GLUtil.setupDebugMessageCallback();
    /* Create all needed GL resources */
    createFramebufferTexture();
    createFrameBufferObject();
    quadFullScreenVbo();
    createBoxesTexture();
    createRayTracingProgram();
    initRayTracingProgram();
    createQuadProgram();
    initQuadProgram();
    firstTime = System.nanoTime();
}