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/**
* Copyright 2014 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``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 JogAmp Community 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.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.opengl.egl;
import javax.media.nativewindow.NativeSurface;
import javax.media.nativewindow.ProxySurface;
import javax.media.nativewindow.UpstreamSurfaceHook;
import jogamp.opengl.egl.EGL;
import com.jogamp.nativewindow.UpstreamSurfaceHookMutableSize;
import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
public class EGLUpstreamSurfacelessHook extends UpstreamSurfaceHookMutableSize {
/**
* @param width the initial width as returned by {@link NativeSurface#getSurfaceWidth()} via {@link UpstreamSurfaceHook#getSurfaceWidth(ProxySurface)},
* not the actual dummy surface width.
* The latter is platform specific and small
* @param height the initial height as returned by {@link NativeSurface#getSurfaceHeight()} via {@link UpstreamSurfaceHook#getSurfaceHeight(ProxySurface)},
* not the actual dummy surface height,
* The latter is platform specific and small
*/
public EGLUpstreamSurfacelessHook(final int width, final int height) {
super(width, height);
}
@Override
public final void create(final ProxySurface s) {
final EGLGraphicsDevice eglDevice = (EGLGraphicsDevice) s.getGraphicsConfiguration().getScreen().getDevice();
eglDevice.lock();
try {
if(0 == eglDevice.getHandle()) {
eglDevice.open();
s.addUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_DEVICE );
}
if( EGL.EGL_NO_SURFACE != s.getSurfaceHandle() ) {
throw new InternalError("Upstream surface not null: "+s);
}
s.addUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_SURFACELESS |
ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE |
ProxySurface.OPT_UPSTREAM_WINDOW_INVISIBLE );
} finally {
eglDevice.unlock();
}
}
@Override
public final void destroy(final ProxySurface s) {
if( s.containsUpstreamOptionBits( ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE ) ) {
final EGLGraphicsDevice eglDevice = (EGLGraphicsDevice) s.getGraphicsConfiguration().getScreen().getDevice();
if( !s.containsUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_SURFACELESS ) ) {
throw new InternalError("Owns upstream surface, but not a valid zero surface: "+s);
}
if( EGL.EGL_NO_SURFACE != s.getSurfaceHandle() ) {
throw new InternalError("Owns upstream valid zero surface, but non zero surface: "+s);
}
eglDevice.lock();
try {
s.clearUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_SURFACELESS | ProxySurface.OPT_PROXY_OWNS_UPSTREAM_SURFACE );
} finally {
eglDevice.unlock();
}
}
}
}
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