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-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution 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 Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package com.sun.opengl.impl;
-
-import java.nio.*;
-import javax.media.nativewindow.*;
-import javax.media.opengl.*;
-import com.jogamp.gluegen.runtime.*;
-import com.sun.nativewindow.impl.NWReflection;
-import java.lang.reflect.*;
-
-/** Extends GLDrawableFactory with a few methods for handling
- typically software-accelerated offscreen rendering (Device
- Independent Bitmaps on Windows, pixmaps on X11). Direct access to
- these GLDrawables is not supplied directly to end users, though
- they may be instantiated by the GLJPanel implementation. */
-public abstract class GLDrawableFactoryImpl extends GLDrawableFactory {
- protected static final boolean DEBUG = Debug.debug("GLDrawableFactory");
-
- //---------------------------------------------------------------------------
- // Dispatching GLDrawable construction in respect to the NativeWindow Capabilities
- //
- public GLDrawable createGLDrawable(NativeWindow target) {
- if (target == null) {
- throw new IllegalArgumentException("Null target");
- }
- AbstractGraphicsConfiguration config = target.getGraphicsConfiguration().getNativeGraphicsConfiguration();
- GLCapabilities caps = (GLCapabilities) target.getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
- GLDrawable result = null;
- if(caps.isOnscreen()) {
- if(caps.isPBuffer()) {
- throw new IllegalArgumentException("Onscreen target can't be PBuffer: "+caps);
- }
- if(DEBUG) {
- System.out.println("GLDrawableFactoryImpl.createGLDrawable -> OnscreenDrawable: "+target);
- }
- result = createOnscreenDrawable(target);
- } else {
- if( ! ( target instanceof SurfaceChangeable ) ) {
- throw new IllegalArgumentException("Passed NativeWindow must implement SurfaceChangeable for offscreen: "+target);
- }
- if(caps.isPBuffer() && canCreateGLPbuffer()) {
- if(DEBUG) {
- System.out.println("GLDrawableFactoryImpl.createGLDrawable -> PbufferDrawable: "+target);
- }
- result = createGLPbufferDrawable(target);
- }
- if(null==result) {
- if(DEBUG) {
- System.out.println("GLDrawableFactoryImpl.createGLDrawable -> OffScreenDrawable: "+target);
- }
- result = createOffscreenDrawable(target);
- }
- }
- if(DEBUG) {
- System.out.println("GLDrawableFactoryImpl.createGLDrawable: "+result);
- }
- return result;
- }
-
- //---------------------------------------------------------------------------
- //
- // Onscreen GLDrawable construction
- //
-
- protected abstract GLDrawableImpl createOnscreenDrawable(NativeWindow target);
-
- //---------------------------------------------------------------------------
- //
- // PBuffer GLDrawable construction
- //
-
- /** Target must implement SurfaceChangeable */
- protected abstract GLDrawableImpl createGLPbufferDrawableImpl(NativeWindow target);
-
- protected GLDrawableImpl createGLPbufferDrawable(NativeWindow target) {
- if (!canCreateGLPbuffer()) {
- throw new GLException("Pbuffer support not available with current graphics card");
- }
- return createGLPbufferDrawableImpl(target);
- }
-
- public GLDrawable createGLPbufferDrawable(GLCapabilities capabilities,
- GLCapabilitiesChooser chooser,
- int width,
- int height) {
- if(height<=0 || height<=0) {
- throw new GLException("Width and height of pbuffer must be positive (were (" +
- width + ", " + height + "))");
- }
- capabilities.setDoubleBuffered(false); // FIXME
- capabilities.setOnscreen(false);
- capabilities.setPBuffer(true);
- return createGLPbufferDrawable( createOffscreenWindow(capabilities, chooser, height, height) );
- }
-
- public GLPbuffer createGLPbuffer(GLCapabilities capabilities,
- GLCapabilitiesChooser chooser,
- int width,
- int height,
- GLContext shareWith) {
- return new GLPbufferImpl( (GLDrawableImpl) createGLPbufferDrawable(capabilities, chooser, height, height),
- shareWith);
- }
-
-
- //---------------------------------------------------------------------------
- //
- // Offscreen GLDrawable construction
- //
-
- protected abstract GLDrawableImpl createOffscreenDrawable(NativeWindow target) ;
-
- public GLDrawable createOffscreenDrawable(GLCapabilities capabilities,
- GLCapabilitiesChooser chooser,
- int width,
- int height) {
- if(width<=0 || height<=0) {
- throw new GLException("Width and height of pbuffer must be positive (were (" +
- width + ", " + height + "))");
- }
- capabilities.setDoubleBuffered(false); // FIXME
- capabilities.setOnscreen(false);
- capabilities.setPBuffer(false);
- return createOffscreenDrawable( createOffscreenWindow(capabilities, chooser, width, height) );
- }
-
- /**
- * creates an offscreen NativeWindow, which must implement SurfaceChangeable as well,
- * so the windowing system related implementation is able to set the surface handle.
- */
- protected abstract NativeWindow createOffscreenWindow(GLCapabilities capabilities, GLCapabilitiesChooser chooser,
- int width, int height);
-
- protected GLDrawableFactoryImpl() {
- super();
- }
-
- protected void maybeDoSingleThreadedWorkaround(Runnable action) {
- if (Threading.isSingleThreaded() &&
- !Threading.isOpenGLThread()) {
- Threading.invokeOnOpenGLThread(action);
- } else {
- action.run();
- }
- }
-
- /**
- * Returns the sole GLDrawableFactoryImpl instance.
- *
- * @param glProfile GLProfile to determine the factory type, ie EGLDrawableFactory,
- * or one of the native GLDrawableFactory's, ie X11/GLX, Windows/WGL or MacOSX/CGL.
- */
- public static GLDrawableFactoryImpl getFactoryImpl(GLProfile glp) {
- return (GLDrawableFactoryImpl) getFactory(glp);
- }
-
- // Helper function for more lazily loading the GLU library;
- // apparently can't use System.loadLibrary on UNIX because it uses
- // RTLD_LOCAL and we need to call dlsym(RTLD_DEFAULT)
- public abstract void loadGLULibrary();
-
- //----------------------------------------------------------------------
- // Support for locking and unlocking the toolkit -- needed only on X11 platforms
- //
-
- public void lockToolkit() {
- NativeWindowFactory.getDefaultFactory().getToolkitLock().lock();
- }
-
- public void unlockToolkit() {
- NativeWindowFactory.getDefaultFactory().getToolkitLock().unlock();
- }
-
- //---------------------------------------------------------------------------
- // Support for Java2D/JOGL bridge on Mac OS X; the external
- // GLDrawable mechanism in the public API is sufficient to
- // implement this functionality on all other platforms
- //
-
- public abstract boolean canCreateContextOnJava2DSurface();
-
- public abstract GLContext createContextOnJava2DSurface(Object graphics, GLContext shareWith)
- throws GLException;
-
- //----------------------------------------------------------------------
- // Gamma adjustment support
- // Thanks to the LWJGL team for illustrating how to make these
- // adjustments on various OSs.
-
- /*
- * Portions Copyright (c) 2002-2004 LWJGL Project
- * 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 'LWJGL' 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.
- */
-
- /**
- * Sets the gamma, brightness, and contrast of the current main
- * display. Returns true if the settings were changed, false if
- * not. If this method returns true, the display settings will
- * automatically be reset upon JVM exit (assuming the JVM does not
- * crash); if the user wishes to change the display settings back to
- * normal ahead of time, use resetDisplayGamma(). Throws
- * IllegalArgumentException if any of the parameters were
- * out-of-bounds.
- *
- * @param gamma The gamma value, typically > 1.0 (default value is
- * 1.0)
- * @param brightness The brightness value between -1.0 and 1.0,
- * inclusive (default value is 0)
- * @param contrast The contrast, greater than 0.0 (default value is 1)
- * @throws IllegalArgumentException if any of the parameters were
- * out-of-bounds
- */
- public boolean setDisplayGamma(float gamma, float brightness, float contrast) throws IllegalArgumentException {
- if ((brightness < -1.0f) || (brightness > 1.0f)) {
- throw new IllegalArgumentException("Brightness must be between -1.0 and 1.0");
- }
- if (contrast < 0) {
- throw new IllegalArgumentException("Contrast must be greater than 0.0");
- }
- // FIXME: ensure gamma is > 1.0? Are smaller / negative values legal?
- int rampLength = getGammaRampLength();
- if (rampLength == 0) {
- return false;
- }
- float[] gammaRamp = new float[rampLength];
- for (int i = 0; i < rampLength; i++) {
- float intensity = (float) i / (float) (rampLength - 1);
- // apply gamma
- float rampEntry = (float) java.lang.Math.pow(intensity, gamma);
- // apply brightness
- rampEntry += brightness;
- // apply contrast
- rampEntry = (rampEntry - 0.5f) * contrast + 0.5f;
- // Clamp entry to [0, 1]
- if (rampEntry > 1.0f)
- rampEntry = 1.0f;
- else if (rampEntry < 0.0f)
- rampEntry = 0.0f;
- gammaRamp[i] = rampEntry;
- }
- registerGammaShutdownHook();
- return setGammaRamp(gammaRamp);
- }
-
- public synchronized void resetDisplayGamma() {
- if (gammaShutdownHook == null) {
- throw new IllegalArgumentException("Should not call this unless setDisplayGamma called first");
- }
- resetGammaRamp(originalGammaRamp);
- unregisterGammeShutdownHook();
- }
-
- //------------------------------------------------------
- // Gamma-related methods to be implemented by subclasses
- //
-
- /** Returns the length of the computed gamma ramp for this OS and
- hardware. Returns 0 if gamma changes are not supported. */
- protected int getGammaRampLength() {
- return 0;
- }
-
- /** Sets the gamma ramp for the main screen. Returns false if gamma
- ramp changes were not supported. */
- protected boolean setGammaRamp(float[] ramp) {
- return false;
- }
-
- /** Gets the current gamma ramp. This is basically an opaque value
- used only on some platforms to reset the gamma ramp to its
- original settings. */
- protected Buffer getGammaRamp() {
- return null;
- }
-
- /** Resets the gamma ramp, potentially using the specified Buffer as
- data to restore the original values. */
- protected void resetGammaRamp(Buffer originalGammaRamp) {
- }
-
- // Shutdown hook mechanism for resetting gamma
- private boolean gammaShutdownHookRegistered;
- private Thread gammaShutdownHook;
- private Buffer originalGammaRamp;
- private synchronized void registerGammaShutdownHook() {
- if (gammaShutdownHookRegistered)
- return;
- if (gammaShutdownHook == null) {
- gammaShutdownHook = new Thread(new Runnable() {
- public void run() {
- synchronized (GLDrawableFactoryImpl.this) {
- resetGammaRamp(originalGammaRamp);
- }
- }
- });
- originalGammaRamp = getGammaRamp();
- }
- Runtime.getRuntime().addShutdownHook(gammaShutdownHook);
- gammaShutdownHookRegistered = true;
- }
-
- private synchronized void unregisterGammeShutdownHook() {
- if (!gammaShutdownHookRegistered)
- return;
- if (gammaShutdownHook == null) {
- throw new InternalError("Error in gamma shutdown hook logic");
- }
- Runtime.getRuntime().removeShutdownHook(gammaShutdownHook);
- gammaShutdownHookRegistered = false;
- // Leave the original gamma ramp data alone
- }
-}