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jMonkeyEngine is a 3-D game engine for adventurous Java developers
package com.jme3.system.lwjgl;
/*
* Copyright (c) 2009-2023 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import com.jme3.input.lwjgl.GlfwJoystickInput;
import com.jme3.input.lwjgl.GlfwKeyInputVR;
import com.jme3.input.lwjgl.GlfwMouseInputVR;
import com.jme3.renderer.Renderer;
import com.jme3.renderer.RendererException;
import com.jme3.renderer.lwjgl.LwjglGL;
import com.jme3.renderer.lwjgl.LwjglGLExt;
import com.jme3.renderer.lwjgl.LwjglGLFboEXT;
import com.jme3.renderer.lwjgl.LwjglGLFboGL3;
import com.jme3.renderer.opengl.*;
import com.jme3.system.*;
import org.lwjgl.glfw.GLFW;
import org.lwjgl.opengl.ARBDebugOutput;
import org.lwjgl.opengl.ARBFramebufferObject;
import org.lwjgl.opengl.EXTFramebufferMultisample;
import org.lwjgl.opengl.GLCapabilities;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import static org.lwjgl.opengl.GL.createCapabilities;
import static org.lwjgl.opengl.GL11.glGetInteger;
/**
* A VR oriented LWJGL implementation of a graphics context.
* @author reden - phr00t - https://github.com/phr00t
* @author Julien Seinturier - (c) 2016 - JOrigin project - http:/www.jorigin.org
*/
public abstract class LwjglContextVR implements JmeContext {
private static final Logger logger = Logger.getLogger(LwjglContextVR.class.getName());
protected static final String THREAD_NAME = "jME3 Main";
protected AtomicBoolean created = new AtomicBoolean(false);
protected AtomicBoolean renderable = new AtomicBoolean(false);
protected final Object createdLock = new Object();
protected AppSettings settings = new AppSettings(true);
protected Renderer renderer;
protected GlfwKeyInputVR keyInput;
protected GlfwMouseInputVR mouseInput;
protected GlfwJoystickInput joyInput;
protected Timer timer;
protected SystemListener listener;
/**
* Accesses the listener that receives events related to this context.
*
* @return the pre-existing instance
*/
@Override
public SystemListener getSystemListener() {
return listener;
}
@Override
public void setSystemListener(SystemListener listener) {
this.listener = listener;
}
protected void printContextInitInfo() {
logger.log(Level.INFO, "LWJGL {0} context running on thread {1}\n"
+ " * Graphics Adapter: GLFW {2}",
new Object[]{Integer.toString(org.lwjgl.Version.VERSION_MAJOR), Thread.currentThread().getName(), GLFW.glfwGetVersionString()});
}
protected int determineMaxSamples() {
// If we already have a valid context, determine samples using current context.
logger.log(Level.SEVERE, "glfwExtensionSupported(\"GL_ARB_framebuffer_object\"): "+GLFW.glfwExtensionSupported("GL_ARB_framebuffer_object"));
logger.log(Level.SEVERE, "glfwExtensionSupported(\"GL_EXT_framebuffer_multisample\"): "+GLFW.glfwExtensionSupported("GL_ARB_framebuffer_object"));
if (GLFW.glfwExtensionSupported("GL_ARB_framebuffer_object")) {
return glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES);
} else if (GLFW.glfwExtensionSupported("GL_EXT_framebuffer_multisample")) {
return glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT);
}
return Integer.MAX_VALUE;
}
protected void loadNatives() {
if (JmeSystem.isLowPermissions()) {
return;
}
if (NativeLibraryLoader.isUsingNativeBullet()) {
NativeLibraryLoader.loadNativeLibrary(NativeLibraries.BulletJme.getName(), true);
}
}
/**
* Check if the display is a retina display.
* @return true if the display is a retina display and false otherwise.
*/
public boolean isRetinaDisplay() {
return GLFW.glfwGetVersionString().contains("retina");
}
protected int getNumSamplesToUse() {
int samples = 0;
if (settings.getSamples() > 1) {
samples = settings.getSamples();
final int supportedSamples = determineMaxSamples();
if (supportedSamples < samples) {
logger.log(Level.WARNING,
"Couldn't satisfy antialiasing samples requirement: x{0}. "
+ "Video hardware only supports: x{1}",
new Object[]{samples, supportedSamples});
samples = supportedSamples;
}
}
return samples;
}
protected void initContextFirstTime() {
final GLCapabilities capabilities = createCapabilities(settings.getRenderer().equals(AppSettings.LWJGL_OPENGL32));
if (!capabilities.OpenGL20) {
throw new RendererException("OpenGL 2.0 or higher is required for jMonkeyEngine");
}
if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL2)
|| settings.getRenderer().equals(AppSettings.LWJGL_OPENGL32)) {
GL gl = new LwjglGL();
GLExt glext = new LwjglGLExt();
GLFbo glfbo;
if (capabilities.OpenGL30) {
glfbo = new LwjglGLFboGL3();
} else {
glfbo = new LwjglGLFboEXT();
}
if (settings.isGraphicsDebug()) {
gl = (GL) GLDebug.createProxy(gl, gl, GL.class, GL2.class, GL3.class, GL4.class);
glext = (GLExt) GLDebug.createProxy(gl, glext, GLExt.class);
glfbo = (GLFbo) GLDebug.createProxy(gl, glfbo, GLFbo.class);
}
if (settings.isGraphicsTiming()) {
GLTimingState timingState = new GLTimingState();
gl = (GL) GLTiming.createGLTiming(gl, timingState, GL.class, GL2.class, GL3.class, GL4.class);
glext = (GLExt) GLTiming.createGLTiming(glext, timingState, GLExt.class);
glfbo = (GLFbo) GLTiming.createGLTiming(glfbo, timingState, GLFbo.class);
}
if (settings.isGraphicsTrace()) {
gl = (GL) GLTracer.createDesktopGlTracer(gl, GL.class, GL2.class, GL3.class, GL4.class);
glext = (GLExt) GLTracer.createDesktopGlTracer(glext, GLExt.class);
glfbo = (GLFbo) GLTracer.createDesktopGlTracer(glfbo, GLFbo.class);
}
renderer = new GLRenderer(gl, glext, glfbo);
renderer.initialize();
} else {
throw new UnsupportedOperationException("Unsupported renderer: " + settings.getRenderer());
}
if (capabilities.GL_ARB_debug_output && settings.isGraphicsDebug()) {
ARBDebugOutput.glDebugMessageCallbackARB(new LwjglGLDebugOutputHandler(), 0);
}
renderer.setMainFrameBufferSrgb(settings.isGammaCorrection());
renderer.setLinearizeSrgbImages(settings.isGammaCorrection());
// Init input
if (keyInput != null) {
keyInput.initialize();
}
if (mouseInput != null) {
mouseInput.initialize();
}
if (joyInput != null) {
joyInput.initialize();
}
renderable.set(true);
}
/**
* Context internal destroy.
*/
public void internalDestroy() {
renderer = null;
timer = null;
renderable.set(false);
synchronized (createdLock) {
created.set(false);
createdLock.notifyAll();
}
}
/**
* Context internal create.
*/
public void internalCreate() {
synchronized (createdLock) {
created.set(true);
createdLock.notifyAll();
}
initContextFirstTime();
}
/**
* Create the context.
*/
public void create() {
create(false);
}
/**
* Destroy the context.
*/
public void destroy() {
destroy(false);
}
/**
*
* @param createdVal
*/
protected void waitFor(boolean createdVal) {
synchronized (createdLock) {
while (created.get() != createdVal) {
try {
createdLock.wait();
} catch (InterruptedException ignored) {
}
}
}
}
@Override
public boolean isCreated() {
return created.get();
}
@Override
public boolean isRenderable() {
return renderable.get();
}
@Override
public void setSettings(AppSettings settings) {
this.settings.copyFrom(settings);
}
@Override
public AppSettings getSettings() {
return settings;
}
@Override
public Renderer getRenderer() {
return renderer;
}
@Override
public Timer getTimer() {
return timer;
}
}
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