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412 lines
16 KiB
412 lines
16 KiB
/*
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* Copyright (c) 2009-2012 jMonkeyEngine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.jme3.system.lwjgl;
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import com.jme3.input.lwjgl.GlfwJoystickInput;
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import com.jme3.input.lwjgl.GlfwKeyInput;
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import com.jme3.input.lwjgl.GlfwMouseInput;
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import com.jme3.opencl.Context;
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import com.jme3.opencl.DefaultPlatformChooser;
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import com.jme3.opencl.Device;
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import com.jme3.opencl.PlatformChooser;
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import com.jme3.opencl.lwjgl.LwjglDevice;
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import com.jme3.opencl.lwjgl.LwjglPlatform;
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import com.jme3.opencl.lwjgl.Utils;
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import com.jme3.renderer.Renderer;
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import com.jme3.renderer.RendererException;
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import com.jme3.renderer.lwjgl.LwjglGL;
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import com.jme3.renderer.lwjgl.LwjglGLExt;
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import com.jme3.renderer.lwjgl.LwjglGLFboEXT;
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import com.jme3.renderer.lwjgl.LwjglGLFboGL3;
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import com.jme3.renderer.opengl.*;
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import com.jme3.system.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.lwjgl.PointerBuffer;
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import org.lwjgl.glfw.GLFW;
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import org.lwjgl.opencl.*;
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import org.lwjgl.opengl.ARBDebugOutput;
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import org.lwjgl.opengl.ARBFramebufferObject;
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import org.lwjgl.opengl.EXTFramebufferMultisample;
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import org.lwjgl.opengl.GLCapabilities;
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import static org.lwjgl.glfw.GLFW.GLFW_TRUE;
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import static org.lwjgl.opencl.CL10.CL_CONTEXT_PLATFORM;
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import static org.lwjgl.opengl.GL.createCapabilities;
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import static org.lwjgl.opengl.GL11.glGetInteger;
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/**
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* A LWJGL implementation of a graphics context.
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*/
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public abstract class LwjglContext implements JmeContext {
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private static final Logger logger = Logger.getLogger(LwjglContext.class.getName());
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protected static final String THREAD_NAME = "jME3 Main";
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protected AtomicBoolean created = new AtomicBoolean(false);
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protected AtomicBoolean renderable = new AtomicBoolean(false);
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protected final Object createdLock = new Object();
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protected AppSettings settings = new AppSettings(true);
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protected Renderer renderer;
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protected GlfwKeyInput keyInput;
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protected GlfwMouseInput mouseInput;
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protected GlfwJoystickInput joyInput;
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protected Timer timer;
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protected SystemListener listener;
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protected com.jme3.opencl.lwjgl.LwjglContext clContext;
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public void setSystemListener(SystemListener listener) {
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this.listener = listener;
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}
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protected void printContextInitInfo() {
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logger.log(Level.INFO, "LWJGL {0} context running on thread {1}\n"
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+ " * Graphics Adapter: GLFW {2}",
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new Object[]{org.lwjgl.Version.getVersion(), Thread.currentThread().getName(), GLFW.glfwGetVersionString()});
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}
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protected int determineMaxSamples() {
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// If we already have a valid context, determine samples using current context.
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if (GLFW.glfwExtensionSupported("GL_ARB_framebuffer_object") == GLFW_TRUE) {
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return glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES);
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} else if (GLFW.glfwExtensionSupported("GL_EXT_framebuffer_multisample") == GLFW_TRUE) {
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return glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT);
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}
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return Integer.MAX_VALUE;
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}
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protected int getNumSamplesToUse() {
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int samples = 0;
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if (settings.getSamples() > 1) {
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samples = settings.getSamples();
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final int supportedSamples = determineMaxSamples();
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if (supportedSamples < samples) {
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logger.log(Level.WARNING,
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"Couldn't satisfy antialiasing samples requirement: x{0}. "
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+ "Video hardware only supports: x{1}",
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new Object[]{samples, supportedSamples});
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samples = supportedSamples;
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}
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}
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return samples;
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}
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protected void initContextFirstTime() {
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final GLCapabilities capabilities = createCapabilities(settings.getRenderer().equals(AppSettings.LWJGL_OPENGL3));
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if (!capabilities.OpenGL20) {
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throw new RendererException("OpenGL 2.0 or higher is required for jMonkeyEngine");
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}
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if (settings.getRenderer().equals(AppSettings.LWJGL_OPENGL2)
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|| settings.getRenderer().equals(AppSettings.LWJGL_OPENGL3)) {
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GL gl = new LwjglGL();
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GLExt glext = new LwjglGLExt();
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GLFbo glfbo;
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if (capabilities.OpenGL30) {
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glfbo = new LwjglGLFboGL3();
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} else {
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glfbo = new LwjglGLFboEXT();
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}
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if (settings.getBoolean("GraphicsDebug")) {
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gl = new GLDebugDesktop(gl, glext, glfbo);
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glext = (GLExt) gl;
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glfbo = (GLFbo) gl;
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}
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if (settings.getBoolean("GraphicsTiming")) {
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GLTimingState timingState = new GLTimingState();
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gl = (GL) GLTiming.createGLTiming(gl, timingState, GL.class, GL2.class, GL3.class, GL4.class);
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glext = (GLExt) GLTiming.createGLTiming(glext, timingState, GLExt.class);
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glfbo = (GLFbo) GLTiming.createGLTiming(glfbo, timingState, GLFbo.class);
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}
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if (settings.getBoolean("GraphicsTrace")) {
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gl = (GL) GLTracer.createDesktopGlTracer(gl, GL.class, GL2.class, GL3.class, GL4.class);
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glext = (GLExt) GLTracer.createDesktopGlTracer(glext, GLExt.class);
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glfbo = (GLFbo) GLTracer.createDesktopGlTracer(glfbo, GLFbo.class);
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}
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renderer = new GLRenderer(gl, glext, glfbo);
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renderer.initialize();
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} else {
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throw new UnsupportedOperationException("Unsupported renderer: " + settings.getRenderer());
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}
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if (capabilities.GL_ARB_debug_output && settings.getBoolean("GraphicsDebug")) {
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ARBDebugOutput.glDebugMessageCallbackARB(new LwjglGLDebugOutputHandler(), 0);
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}
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renderer.setMainFrameBufferSrgb(settings.isGammaCorrection());
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renderer.setLinearizeSrgbImages(settings.isGammaCorrection());
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// Init input
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if (keyInput != null) {
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keyInput.initialize();
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}
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if (mouseInput != null) {
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mouseInput.initialize();
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}
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if (joyInput != null) {
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joyInput.initialize();
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}
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renderable.set(true);
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if (settings.isOpenCLSupport()) {
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initOpenCL();
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}
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}
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protected void initOpenCL() {
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logger.info("Initialize OpenCL with LWJGL3");
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// try {
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// CL.create();
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// } catch (Exception ex) {
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// logger.log(Level.SEVERE, "Unable to initialize OpenCL", ex);
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// return;
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// }
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//load platforms and devices
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StringBuilder platformInfos = new StringBuilder();
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ArrayList<LwjglPlatform> platforms = new ArrayList<>();
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for (CLPlatform p : CLPlatform.getPlatforms()) {
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platforms.add(new LwjglPlatform(p));
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}
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platformInfos.append("Available OpenCL platforms:");
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for (int i=0; i<platforms.size(); ++i) {
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LwjglPlatform platform = platforms.get(i);
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platformInfos.append("\n * Platform ").append(i+1);
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platformInfos.append("\n * Name: ").append(platform.getName());
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platformInfos.append("\n * Vendor: ").append(platform.getVendor());
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platformInfos.append("\n * Version: ").append(platform.getVersion());
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platformInfos.append("\n * Profile: ").append(platform.getProfile());
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platformInfos.append("\n * Supports interop: ").append(platform.hasOpenGLInterop());
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List<LwjglDevice> devices = platform.getDevices();
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platformInfos.append("\n * Available devices:");
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for (int j=0; j<devices.size(); ++j) {
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LwjglDevice device = devices.get(j);
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platformInfos.append("\n * * Device ").append(j+1);
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platformInfos.append("\n * * Name: ").append(device.getName());
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platformInfos.append("\n * * Vendor: ").append(device.getVendor());
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platformInfos.append("\n * * Version: ").append(device.getVersion());
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platformInfos.append("\n * * Profile: ").append(device.getProfile());
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platformInfos.append("\n * * Compiler version: ").append(device.getCompilerVersion());
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platformInfos.append("\n * * Device type: ").append(device.getDeviceType());
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platformInfos.append("\n * * Compute units: ").append(device.getComputeUnits());
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platformInfos.append("\n * * Work group size: ").append(device.getMaxiumWorkItemsPerGroup());
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platformInfos.append("\n * * Global memory: ").append(device.getGlobalMemorySize()).append("B");
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platformInfos.append("\n * * Local memory: ").append(device.getLocalMemorySize()).append("B");
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platformInfos.append("\n * * Constant memory: ").append(device.getMaximumConstantBufferSize()).append("B");
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platformInfos.append("\n * * Supports double: ").append(device.hasDouble());
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platformInfos.append("\n * * Supports half floats: ").append(device.hasHalfFloat());
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platformInfos.append("\n * * Supports writable 3d images: ").append(device.hasWritableImage3D());
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platformInfos.append("\n * * Supports interop: ").append(device.hasOpenGLInterop());
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}
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}
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logger.info(platformInfos.toString());
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//choose devices
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PlatformChooser chooser = null;
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if (settings.getOpenCLPlatformChooser() != null) {
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try {
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chooser = (PlatformChooser) Class.forName(settings.getOpenCLPlatformChooser()).newInstance();
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} catch (Exception ex) {
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logger.log(Level.WARNING, "unable to instantiate custom PlatformChooser", ex);
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}
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}
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if (chooser == null) {
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chooser = new DefaultPlatformChooser();
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}
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List<? extends Device> choosenDevices = chooser.chooseDevices(platforms);
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List<CLDevice> devices = new ArrayList<>(choosenDevices.size());
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LwjglPlatform platform = null;
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for (Device d : choosenDevices) {
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if (!(d instanceof LwjglDevice)) {
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logger.log(Level.SEVERE, "attempt to return a custom Device implementation from PlatformChooser: {0}", d);
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return;
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}
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LwjglDevice ld = (LwjglDevice) d;
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if (platform == null) {
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platform = ld.getPlatform();
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} else if (platform != ld.getPlatform()) {
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logger.severe("attempt to use devices from different platforms");
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return;
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}
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devices.add(ld.getCLDevice());
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}
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if (devices.isEmpty()) {
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logger.warning("no devices specified, no OpenCL context created");
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return;
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}
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logger.log(Level.INFO, "chosen platform: {0}", platform.getName());
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logger.log(Level.INFO, "chosen devices: {0}", choosenDevices);
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//create context
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try {
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long c = createContext(platform.getPlatform(), devices);
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clContext = new com.jme3.opencl.lwjgl.LwjglContext(c, (List<LwjglDevice>) choosenDevices);
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} catch (Exception ex) {
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logger.log(Level.SEVERE, "Unable to create OpenCL context", ex);
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return;
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}
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logger.info("OpenCL context created");
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}
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private long createContext(final CLPlatform platform, final List<CLDevice> devices) throws Exception {
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final int propertyCount = 2 + 4 + 1;
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final PointerBuffer properties = PointerBuffer.allocateDirect(propertyCount + devices.size());
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//set sharing properties
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//https://github.com/glfw/glfw/issues/104
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//TODO: test on Linus and MacOSX
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switch ( org.lwjgl.system.Platform.get() ) {
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case WINDOWS:
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long wglContext = org.lwjgl.opengl.WGL.wglGetCurrentContext();
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long wglDC = org.lwjgl.opengl.WGL.wglGetCurrentDC();
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properties.put(KHRGLSharing.CL_GL_CONTEXT_KHR).put(wglContext);
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properties.put(KHRGLSharing.CL_WGL_HDC_KHR).put(wglDC);
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break;
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case LINUX:
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properties.put(KHRGLSharing.CL_GL_CONTEXT_KHR).put(org.lwjgl.opengl.GLX.glXGetCurrentContext());
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properties.put(KHRGLSharing.CL_GLX_DISPLAY_KHR).put(org.lwjgl.opengl.GLX.glXGetCurrentDrawable());
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break;
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case MACOSX:
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properties.put(APPLEGLSharing.CL_CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE)
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.put(org.lwjgl.opengl.CGL.CGLGetShareGroup(org.lwjgl.opengl.CGL.CGLGetCurrentContext()));
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break;
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default:
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throw new UnsupportedOperationException("CL/GL context sharing is not supported on this platform.");
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}
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properties.put(CL_CONTEXT_PLATFORM).put(platform);
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properties.put(0);
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Utils.errorBuffer.rewind();
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PointerBuffer deviceBuffer = PointerBuffer.allocateDirect(devices.size());
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for (CLDevice d : devices) {
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deviceBuffer.put(d);
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}
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deviceBuffer.flip();
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long context = CL10.clCreateContext(properties, deviceBuffer, null, 0, Utils.errorBuffer);
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Utils.checkError(Utils.errorBuffer, "clCreateContext");
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return context;
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}
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public void internalDestroy() {
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renderer = null;
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timer = null;
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renderable.set(false);
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synchronized (createdLock) {
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created.set(false);
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createdLock.notifyAll();
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}
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}
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public void internalCreate() {
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synchronized (createdLock) {
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created.set(true);
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createdLock.notifyAll();
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}
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initContextFirstTime();
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}
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public void create() {
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create(false);
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}
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public void destroy() {
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destroy(false);
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}
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protected void waitFor(boolean createdVal) {
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synchronized (createdLock) {
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while (created.get() != createdVal) {
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try {
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createdLock.wait();
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} catch (InterruptedException ignored) {
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}
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}
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}
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}
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@Override
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public boolean isCreated() {
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return created.get();
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}
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@Override
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public boolean isRenderable() {
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return renderable.get();
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}
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@Override
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public void setSettings(AppSettings settings) {
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this.settings.copyFrom(settings);
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}
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@Override
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public AppSettings getSettings() {
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return settings;
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}
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@Override
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public Renderer getRenderer() {
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return renderer;
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}
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@Override
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public Timer getTimer() {
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return timer;
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}
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@Override
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public Context getOpenCLContext() {
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return clContext;
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}
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}
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