com.jtransc.media.lwjgl.JTranscLwjgl.java Source code

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Here is the source code for com.jtransc.media.lwjgl.JTranscLwjgl.java

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package com.jtransc.media.lwjgl;/*
                                * Copyright 2016 Carlos Ballesteros Velasco
                                *
                                * Licensed under the Apache License, Version 2.0 (the "License");
                                * you may not use this file except in compliance with the License.
                                * You may obtain a copy of the License at
                                *
                                *      http://www.apache.org/licenses/LICENSE-2.0
                                *
                                * Unless required by applicable law or agreed to in writing, software
                                * distributed under the License is distributed on an "AS IS" BASIS,
                                * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
                                * See the License for the specific language governing permissions and
                                * limitations under the License.
                                */

import com.jtransc.media.*;
import com.jtransc.JTranscVersion;
import com.jtransc.io.JTranscIoTools;
import org.lwjgl.glfw.GLFWErrorCallback;
import org.lwjgl.glfw.GLFWVidMode;
import org.lwjgl.glfw.GLFWWindowSizeCallback;
import org.lwjgl.opengl.GL;

import static org.lwjgl.glfw.GLFW.*;
import static org.lwjgl.system.MemoryUtil.NULL;

public class JTranscLwjgl {
    static private long window;
    static private Runnable r_update;
    static private Runnable r_render;

    static private GLFWErrorCallback errorCallback;
    static private GLFWWindowSizeCallback windowSizeCallback;

    static private void init(final Runnable init) {
        glfwSetErrorCallback(errorCallback = GLFWErrorCallback.createPrint(System.err));

        // Initialize GLFW. Most GLFW functions will not work before doing this.
        if (glfwInit() != GLFW_TRUE)
            throw new IllegalStateException("Unable to initialize GLFW");

        // Configure our window
        glfwDefaultWindowHints(); // optional, the current window hints are already the default
        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // the window will stay hidden after creation
        glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // the window will be resizable

        int WIDTH = 640;
        int HEIGHT = 480;

        // Create the window
        window = glfwCreateWindow(WIDTH, HEIGHT, "JTransc " + JTranscVersion.getVersion(), NULL, NULL);
        if (window == NULL)
            throw new RuntimeException("Failed to create the GLFW window");

        // Get the resolution of the primary monitor
        GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());
        // Center our window
        glfwSetWindowPos(window, (vidmode.width() - WIDTH) / 2, (vidmode.height() - HEIGHT) / 2);

        glfwSetWindowSizeCallback(window, windowSizeCallback = new GLFWWindowSizeCallback() {
            @Override
            public void invoke(long window, int width, int height) {
                updatedScreenSize();

                if (JTranscLwjgl.r_render != null) {
                    JTranscLwjgl.r_render.run();
                }
            }
        });

        // Make the OpenGL context current
        glfwMakeContextCurrent(window);
        // Enable v-sync
        glfwSwapInterval(1);

        // Make the window visible
        glfwShowWindow(window);

        GL.createCapabilities();

        JTranscRender.impl = new LwjglRenderer(window);
        JTranscAudio.impl = new LwjglAudio();
        LwjglInput.config(window);
        if (init != null)
            init.run();
    }

    static private void frame() {
        if (r_update != null)
            r_update.run();
        if (r_render != null)
            r_render.run();
    }

    static private void updatedScreenSize() {
        glfwGetWindowSize(window, LwglTemps.intBuffer(0), LwglTemps.intBuffer(1));
        //glfw
        JTranscWindow.setScreenSize(LwglTemps.intValue(0), LwglTemps.intValue(1)
        //(int)(Gdx.graphics.getWidth() * Gdx.graphics.getDensity()),
        //(int)(Gdx.graphics.getHeight() * Gdx.graphics.getDensity())
        );
    }

    static public void init() {
        JTranscIO.impl = new JTranscIO.Impl() {
            @Override
            public void readAsync(String path, JTranscCallback<byte[]> handler) {
                try {
                    handler.handler(null, JTranscIoTools.readFile(LwjglFiles.getResource(path)));
                } catch (Throwable t) {
                    handler.handler(t, null);
                }
            }

            @Override
            public void getResourceAsync(String path, JTranscCallback<byte[]> handler) {
                byte[] bytes = JTranscIoTools
                        .readStreamFully(JTranscLwjgl.class.getClassLoader().getResourceAsStream(path));
                handler.handler(null, bytes);
            }
        };

        JTranscEventLoop.impl = new JTranscEventLoop.Impl() {
            @Override
            public void init(final Runnable init) {

                //init.run();
                JTranscLwjgl.init(init);

                while (glfwWindowShouldClose(window) == GLFW_FALSE) {
                    if (JTranscLwjgl.r_update != null) {
                        JTranscLwjgl.r_update.run();
                    }
                    if (JTranscLwjgl.r_render != null) {
                        JTranscLwjgl.r_render.run();
                    }

                    // Poll for window events. The key callback above will only be
                    // invoked during this call.
                    glfwPollEvents();
                }
            }

            @Override
            public void loop(Runnable update, Runnable render) {
                JTranscLwjgl.r_update = update;
                JTranscLwjgl.r_render = render;
            }
        };
    }
}