243 lines
6.8 KiB
Java
243 lines
6.8 KiB
Java
/*
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* Copyright (c) 2002-2011 LWJGL Project
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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 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software 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 org.lwjgl.opengl;
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import org.lwjgl.BufferUtils;
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import org.lwjgl.LWJGLException;
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import org.lwjgl.LWJGLUtil;
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import org.lwjgl.PointerBuffer;
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import org.lwjgl.opengles.ContextAttribs;
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import org.lwjgl.opengles.*;
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import org.lwjgl.opengles.Util;
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import static org.lwjgl.opengles.EGL.*;
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import static org.lwjgl.opengles.GLES20.*;
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/**
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* @author Spasi
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* @since 14/5/2011
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*/
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abstract class DrawableGLES implements DrawableLWJGL {
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/** The PixelFormat used to create the EGLDisplay. */
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protected org.lwjgl.opengles.PixelFormat pixel_format;
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protected EGLDisplay eglDisplay;
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protected EGLConfig eglConfig;
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protected EGLSurface eglSurface;
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/** The OpenGL Context. */
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protected ContextGLES context;
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/** The Drawable that shares objects with this Drawable. */
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protected Drawable shared_drawable;
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protected DrawableGLES() {
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}
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public void setPixelFormat(final PixelFormatLWJGL pf) throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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this.pixel_format = (org.lwjgl.opengles.PixelFormat)pf;
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}
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}
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public PixelFormatLWJGL getPixelFormat() {
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synchronized ( GlobalLock.lock ) {
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return pixel_format;
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}
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}
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public void initialize(final long window, final long display_id, final int eglSurfaceType, final org.lwjgl.opengles.PixelFormat pf) throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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if ( eglSurface != null ) {
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eglSurface.destroy();
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eglSurface = null;
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}
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if ( eglDisplay != null ) {
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eglDisplay.terminate();
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eglDisplay = null;
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}
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final EGLDisplay eglDisplay = eglGetDisplay((int)display_id);
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int[] attribs = {
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EGL_LEVEL, 0,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
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EGL_NATIVE_RENDERABLE, EGL_FALSE,
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};
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final EGLConfig[] configs = eglDisplay.chooseConfig(pf.getAttribBuffer(eglDisplay, eglSurfaceType, attribs), null, BufferUtils.createIntBuffer(1));
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if ( configs.length == 0 )
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throw new LWJGLException("No EGLConfigs found for the specified PixelFormat.");
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final EGLConfig eglConfig = pf.getBestMatch(configs);
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final EGLSurface eglSurface = eglDisplay.createWindowSurface(eglConfig, window, null);
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pf.setSurfaceAttribs(eglSurface);
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this.eglDisplay = eglDisplay;
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this.eglConfig = eglConfig;
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this.eglSurface = eglSurface;
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// This can happen when switching in and out of full-screen mode.
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if ( context != null )
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context.getEGLContext().setDisplay(eglDisplay);
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}
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}
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public void createContext(final ContextAttribs attribs, final Drawable shared_drawable) throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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this.context = new ContextGLES(this, attribs, shared_drawable != null ? ((DrawableGLES)shared_drawable).getContext() : null);
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this.shared_drawable = shared_drawable;
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}
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}
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Drawable getSharedDrawable() {
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synchronized ( GlobalLock.lock ) {
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return shared_drawable;
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}
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}
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public EGLDisplay getEGLDisplay() {
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synchronized ( GlobalLock.lock ) {
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return eglDisplay;
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}
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}
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public EGLConfig getEGLConfig() {
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synchronized ( GlobalLock.lock ) {
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return eglConfig;
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}
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}
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public EGLSurface getEGLSurface() {
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synchronized ( GlobalLock.lock ) {
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return eglSurface;
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}
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}
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public ContextGLES getContext() {
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synchronized ( GlobalLock.lock ) {
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return context;
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}
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}
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public org.lwjgl.opengl.Context createSharedContext() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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return new ContextGLES(this, context.getContextAttribs(), context);
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}
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}
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public void checkGLError() {
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Util.checkGLError();
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}
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public void setSwapInterval(final int swap_interval) {
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ContextGLES.setSwapInterval(swap_interval);
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}
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public void swapBuffers() throws LWJGLException {
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ContextGLES.swapBuffers();
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}
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public void initContext(final float r, final float g, final float b) {
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// set background clear color
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glClearColor(r, g, b, 0.0f);
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// Clear window to avoid the desktop "showing through"
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glClear(GL_COLOR_BUFFER_BIT);
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}
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public boolean isCurrent() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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return context.isCurrent();
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}
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}
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public void makeCurrent() throws LWJGLException, PowerManagementEventException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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context.makeCurrent();
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}
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}
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public void releaseContext() throws LWJGLException, PowerManagementEventException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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if ( context.isCurrent() )
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context.releaseCurrent();
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}
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}
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public void destroy() {
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synchronized ( GlobalLock.lock ) {
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try {
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if ( context != null ) {
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try {
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releaseContext();
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} catch (PowerManagementEventException e) {
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// Ignore
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}
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context.forceDestroy();
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context = null;
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}
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if ( eglSurface != null ) {
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eglSurface.destroy();
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eglSurface = null;
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}
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if ( eglDisplay != null ) {
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eglDisplay.terminate();
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eglDisplay = null;
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}
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pixel_format = null;
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shared_drawable = null;
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} catch (LWJGLException e) {
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LWJGLUtil.log("Exception occurred while destroying Drawable: " + e);
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}
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}
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}
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protected void checkDestroyed() {
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if ( context == null )
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throw new IllegalStateException("The Drawable has no context available.");
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}
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public void setCLSharingProperties(final PointerBuffer properties) throws LWJGLException {
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throw new UnsupportedOperationException();
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}
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} |