/*
* Copyright (c) 2009-2012 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.
*/
package com.jme3.system.lwjgl;
import com.jme3.input.lwjgl.JInputJoyInput;
import com.jme3.input.lwjgl.LwjglKeyInput;
import com.jme3.input.lwjgl.LwjglMouseInput;
import com.jme3.math.FastMath;
import com.jme3.renderer.Renderer;
import com.jme3.renderer.lwjgl.LwjglGL1Renderer;
import com.jme3.renderer.lwjgl.LwjglRenderer;
import com.jme3.system.AppSettings;
import com.jme3.system.JmeContext;
import com.jme3.system.JmeSystem;
import com.jme3.system.SystemListener;
import com.jme3.system.Timer;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.lwjgl.LWJGLException;
import org.lwjgl.Sys;
import org.lwjgl.opengl.*;
/**
* A LWJGL implementation of a graphics context.
*/
public abstract class LwjglContext implements JmeContext {
private static final Logger logger = Logger.getLogger(LwjglContext.class.getName());
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 LwjglKeyInput keyInput;
protected LwjglMouseInput mouseInput;
protected JInputJoyInput joyInput;
protected Timer timer;
protected SystemListener listener;
public void setSystemListener(SystemListener listener){
this.listener = listener;
}
protected void printContextInitInfo() {
logger.log(Level.INFO, "Lwjgl {0} context running on thread {1}",
new Object[]{Sys.getVersion(), Thread.currentThread().getName()});
logger.log(Level.INFO, "Adapter: {0}", Display.getAdapter());
logger.log(Level.INFO, "Driver Version: {0}", Display.getVersion());
String vendor = GL11.glGetString(GL11.GL_VENDOR);
logger.log(Level.INFO, "Vendor: {0}", vendor);
String version = GL11.glGetString(GL11.GL_VERSION);
logger.log(Level.INFO, "OpenGL Version: {0}", version);
String renderGl = GL11.glGetString(GL11.GL_RENDERER);
logger.log(Level.INFO, "Renderer: {0}", renderGl);
if (GLContext.getCapabilities().OpenGL20){
String shadingLang = GL11.glGetString(GL20.GL_SHADING_LANGUAGE_VERSION);
logger.log(Level.INFO, "GLSL Ver: {0}", shadingLang);
}
}
protected ContextAttribs createContextAttribs() {
if (settings.getBoolean("GraphicsDebug") || settings.getRenderer().equals(AppSettings.LWJGL_OPENGL3)) {
ContextAttribs attr;
if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL3)) {
attr = new ContextAttribs(3, 2);
attr = attr.withProfileCore(true).withForwardCompatible(true).withProfileCompatibility(false);
} else {
attr = new ContextAttribs();
}
if (settings.getBoolean("GraphicsDebug")) {
attr = attr.withDebug(true);
}
return attr;
} else {
return null;
}
}
protected int determineMaxSamples(int requestedSamples) {
boolean displayWasCurrent = false;
try {
// If we already have a valid context, determine samples using current
// context.
if (Display.isCreated() && Display.isCurrent()) {
if (GLContext.getCapabilities().GL_ARB_framebuffer_object) {
return GL11.glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES);
} else if (GLContext.getCapabilities().GL_EXT_framebuffer_multisample) {
return GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT);
}
// Doesn't support any of the needed extensions .. continue down.
displayWasCurrent = true;
}
} catch (LWJGLException ex) {
listener.handleError("Failed to check if display is current", ex);
}
if ((Pbuffer.getCapabilities() & Pbuffer.PBUFFER_SUPPORTED) == 0) {
// No pbuffer, assume everything is supported.
return Integer.MAX_VALUE;
} else {
Pbuffer pb = null;
if (!displayWasCurrent) {
// OpenGL2 method: Create pbuffer and query samples
// from GL_ARB_framebuffer_object or GL_EXT_framebuffer_multisample.
try {
pb = new Pbuffer(1, 1, new PixelFormat(0, 0, 0), null);
pb.makeCurrent();
if (GLContext.getCapabilities().GL_ARB_framebuffer_object) {
return GL11.glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES);
} else if (GLContext.getCapabilities().GL_EXT_framebuffer_multisample) {
return GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT);
}
// OpenGL2 method failed.
} catch (LWJGLException ex) {
// Something else failed.
return Integer.MAX_VALUE;
} finally {
if (pb != null) {
pb.destroy();
pb = null;
}
}
}
// OpenGL1 method (DOESNT WORK RIGHT NOW ..)
requestedSamples = FastMath.nearestPowerOfTwo(requestedSamples);
try {
requestedSamples = Integer.MAX_VALUE;
/*
while (requestedSamples > 1) {
try {
pb = new Pbuffer(1, 1, new PixelFormat(16, 0, 8, 0, requestedSamples), null);
} catch (LWJGLException ex) {
if (ex.getMessage().startsWith("Failed to find ARB pixel format")) {
// Unsupported format, so continue.
requestedSamples = FastMath.nearestPowerOfTwo(requestedSamples / 2);
} else {
// Something else went wrong ..
return Integer.MAX_VALUE;
}
} finally {
if (pb != null){
pb.destroy();
pb = null;
}
}
}*/
} finally {
if (displayWasCurrent) {
try {
Display.makeCurrent();
} catch (LWJGLException ex) {
listener.handleError("Failed to make display current after checking samples", ex);
}
}
}
return requestedSamples;
}
}
protected int getNumSamplesToUse() {
int samples = 0;
if (settings.getSamples() > 1){
samples = settings.getSamples();
int supportedSamples = determineMaxSamples(samples);
if (supportedSamples < samples) {
samples = supportedSamples;
}
}
return samples;
}
protected void initContextFirstTime(){
if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL2)
|| settings.getRenderer().equals(AppSettings.LWJGL_OPENGL3)){
renderer = new LwjglRenderer();
}else if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL1)){
renderer = new LwjglGL1Renderer();
}else if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL_ANY)){
// Choose an appropriate renderer based on capabilities
if (GLContext.getCapabilities().OpenGL20){
renderer = new LwjglRenderer();
}else{
renderer = new LwjglGL1Renderer();
}
}else{
throw new UnsupportedOperationException("Unsupported renderer: " + settings.getRenderer());
}
// Init renderer
if (renderer instanceof LwjglRenderer){
((LwjglRenderer)renderer).initialize();
}else if (renderer instanceof LwjglGL1Renderer){
((LwjglGL1Renderer)renderer).initialize();
}else{
assert false;
}
// Init input
if (keyInput != null) {
keyInput.initialize();
}
if (mouseInput != null) {
mouseInput.initialize();
}
if (joyInput != null) {
joyInput.initialize();
}
}
public void internalDestroy(){
renderer = null;
timer = null;
renderable.set(false);
synchronized (createdLock){
created.set(false);
createdLock.notifyAll();
}
}
public void internalCreate(){
timer = new LwjglTimer();
synchronized (createdLock){
created.set(true);
createdLock.notifyAll();
}
if (renderable.get()){
initContextFirstTime();
}else{
assert getType() == Type.Canvas;
}
}
public void create(){
create(false);
}
public void destroy(){
destroy(false);
}
protected void waitFor(boolean createdVal){
synchronized (createdLock){
while (created.get() != createdVal){
try {
createdLock.wait();
} catch (InterruptedException ex) {
}
}
}
}
public boolean isCreated(){
return created.get();
}
public boolean isRenderable(){
return renderable.get();
}
public void setSettings(AppSettings settings) {
this.settings.copyFrom(settings);
}
public AppSettings getSettings(){
return settings;
}
public Renderer getRenderer() {
return renderer;
}
public Timer getTimer() {
return timer;
}
}