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/*
* Copyright (c) 2008 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.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.opengl.impl.egl;
import com.sun.opengl.impl.GLDrawableImpl;
import javax.media.opengl.*;
public class EGLDrawable extends GLDrawableImpl {
private GLCapabilitiesChooser chooser;
private long display;
private long config;
private long surface;
private int[] tmp = new int[1];
public EGLDrawable(EGLDrawableFactory factory,
NativeWindow component,
GLCapabilities capabilities,
GLCapabilitiesChooser chooser) throws GLException {
super(factory, component, false);
setChosenGLCapabilities(capabilities);
this.chooser = chooser;
surface=EGL.EGL_NO_SURFACE;
display = EGL.eglGetDisplay((0!=component.getDisplayHandle())?component.getDisplayHandle():EGL.EGL_DEFAULT_DISPLAY);
if (display == EGL.EGL_NO_DISPLAY) {
throw new GLException("eglGetDisplay failed");
}
if (!EGL.eglInitialize(display, null, null)) {
throw new GLException("eglInitialize failed");
}
int[] attrs = factory.glCapabilities2AttribList(capabilities);
long[] configs = new long[1];
int[] numConfigs = new int[1];
if (!EGL.eglChooseConfig(display,
attrs, 0,
configs, 0, 1,
numConfigs, 0)) {
throw new GLException("Graphics configuration selection (eglChooseConfig) failed");
}
if (numConfigs[0] == 0) {
throw new GLException("No valid graphics configuration selected from eglChooseConfig");
}
config = configs[0];
}
public long getDisplay() {
return display;
}
public void destroy() {
setRealized(false);
if(EGL.EGL_NO_DISPLAY!=display) {
EGL.eglTerminate(display);
display=EGL.EGL_NO_DISPLAY;
}
super.destroy();
}
public long getConfig() {
return config;
}
public long getSurface() {
return surface;
}
protected void setSurface() {
if (EGL.EGL_NO_SURFACE==surface) {
try {
lockSurface();
// Create the window surface
surface = EGL.eglCreateWindowSurface(display, config, component.getWindowHandle(), null);
if (EGL.EGL_NO_SURFACE==surface) {
throw new GLException("Creation of window surface (eglCreateWindowSurface) failed, component: "+component);
}
} finally {
unlockSurface();
}
}
}
public GLContext createContext(GLContext shareWith) {
return new EGLContext(this, shareWith);
}
public void setRealized(boolean realized) {
if (realized) {
// setSurface();
} else if( surface != EGL.EGL_NO_SURFACE ) {
// Destroy the window surface
// FIXME: we should expose a destroy() method on
// GLDrawable and get rid of setRealized(), instead
// destroying and re-creating the GLDrawable associated
// with for example a GLCanvas each time
if (!EGL.eglDestroySurface(display, surface)) {
throw new GLException("Error destroying window surface (eglDestroySurface)");
}
surface = EGL.EGL_NO_SURFACE;
}
super.setRealized(realized);
}
public void setSize(int width, int height) {
// FIXME: anything to do here?
}
public int getWidth() {
if (!EGL.eglQuerySurface(display, surface, EGL.EGL_WIDTH, tmp, 0)) {
throw new GLException("Error querying surface width");
}
return tmp[0];
}
public int getHeight() {
if (!EGL.eglQuerySurface(display, surface, EGL.EGL_HEIGHT, tmp, 0)) {
throw new GLException("Error querying surface height");
}
return tmp[0];
}
public void swapBuffers() throws GLException {
getFactory().lockToolkit();
try {
if (component.getSurfaceHandle() == 0) {
if (lockSurface() == NativeWindow.LOCK_SURFACE_NOT_READY) {
return;
}
}
EGL.eglSwapBuffers(display, surface);
} finally {
unlockSurface();
getFactory().unlockToolkit();
}
}
public String toString() {
return "EGLDrawable[ realized "+getRealized()+
", window "+getNativeWindow()+
", egl display " + display +
", egl config " + config +
", egl surface " + surface +
", factory "+getFactory()+"]";
}
}
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