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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.egl;
import javax.media.opengl.*;
import javax.media.nativewindow.*;
import javax.media.nativewindow.egl.*;
import com.sun.opengl.impl.*;
import com.sun.nativewindow.impl.NullWindow;
public class EGLPbufferDrawable extends EGLDrawable {
private int texFormat;
protected static final boolean useTexture = false; // No yet ..
protected EGLPbufferDrawable(EGLDrawableFactory factory,
GLCapabilities caps,
GLCapabilitiesChooser chooser,
int width, int height) {
super(factory, new NullWindow(createEGLGraphicsConfiguration(caps, chooser)));
if (width <= 0 || height <= 0) {
throw new GLException("Width and height of pbuffer must be positive (were (" +
width + ", " + height + "))");
}
// get choosen ones ..
caps = (GLCapabilities) getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration().getChosenCapabilities();
if(useTexture) {
this.texFormat = caps.getAlphaBits() > 0 ? EGL.EGL_TEXTURE_RGBA : EGL.EGL_TEXTURE_RGB ;
} else {
this.texFormat = EGL.EGL_NO_TEXTURE;
}
NullWindow nw = (NullWindow) getNativeWindow();
nw.setSize(width, height);
ownEGLDisplay = true;
if (DEBUG) {
System.out.println("Pbuffer config: " + getNativeWindow().getGraphicsConfiguration().getNativeGraphicsConfiguration());
}
}
protected static EGLGraphicsConfiguration createEGLGraphicsConfiguration(GLCapabilities caps, GLCapabilitiesChooser chooser) {
if(caps.isOnscreen()) {
throw new GLException("Error: Onscreen set: "+caps);
}
if(!caps.isPBuffer()) {
throw new GLException("Error: PBuffer not set: "+caps);
}
long eglDisplay = EGL.eglGetDisplay(EGL.EGL_DEFAULT_DISPLAY);
if (eglDisplay == EGL.EGL_NO_DISPLAY) {
throw new GLException("Failed to created EGL default display: error 0x"+Integer.toHexString(EGL.eglGetError()));
} else if(DEBUG) {
System.err.println("eglDisplay(EGL_DEFAULT_DISPLAY): 0x"+Long.toHexString(eglDisplay));
}
if (!EGL.eglInitialize(eglDisplay, null, null)) {
throw new GLException("eglInitialize failed"+", error 0x"+Integer.toHexString(EGL.eglGetError()));
}
EGLGraphicsDevice e = new EGLGraphicsDevice(eglDisplay);
DefaultGraphicsScreen s = new DefaultGraphicsScreen(e, 0);
EGLGraphicsConfiguration eglConfig = EGLGraphicsConfigurationFactory.chooseGraphicsConfigurationStatic(caps, chooser, s);
if (null == eglConfig) {
EGL.eglTerminate(eglDisplay);
throw new GLException("Couldn't create EGLGraphicsConfiguration from "+s);
} else if(DEBUG) {
System.err.println("Chosen eglConfig: "+eglConfig);
}
return eglConfig;
}
protected long createSurface(long eglDpy, _EGLConfig eglNativeCfg, long surfaceHandle) {
NullWindow nw = (NullWindow) getNativeWindow();
int[] attrs = EGLGraphicsConfiguration.CreatePBufferSurfaceAttribList(nw.getWidth(), nw.getHeight(), texFormat);
long surf = EGL.eglCreatePbufferSurface(eglDpy, eglNativeCfg, attrs, 0);
if (EGL.EGL_NO_SURFACE==surf) {
throw new GLException("Creation of window surface (eglCreatePbufferSurface) failed, dim "+nw.getWidth()+"x"+nw.getHeight()+", error 0x"+Integer.toHexString(EGL.eglGetError()));
} else if(DEBUG) {
System.err.println("setSurface result: eglSurface 0x"+Long.toHexString(surf));
}
nw.setSurfaceHandle(surf);
return surf;
}
public GLContext createContext(GLContext shareWith) {
return new EGLPbufferContext(this, shareWith);
}
protected void swapBuffersImpl() {
if(DEBUG) {
System.err.println("unhandled swapBuffersImpl() called for: "+this);
}
}
}
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