diff options
Diffstat (limited to 'src/net/java/games/jogl/impl/x11/X11OnscreenGLContext.java')
| -rw-r--r-- | src/net/java/games/jogl/impl/x11/X11OnscreenGLContext.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/net/java/games/jogl/impl/x11/X11OnscreenGLContext.java b/src/net/java/games/jogl/impl/x11/X11OnscreenGLContext.java new file mode 100644 index 000000000..496e113a5 --- /dev/null +++ b/src/net/java/games/jogl/impl/x11/X11OnscreenGLContext.java @@ -0,0 +1,189 @@ +/* + * 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 + * MIDROSYSTEMS, 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 net.java.games.jogl.impl.x11; + +import java.awt.Component; +import net.java.games.jogl.*; +import net.java.games.jogl.impl.*; + +public class X11OnscreenGLContext extends X11GLContext { + // Variables for lockSurface/unlockSurface + private JAWT_DrawingSurface ds; + private JAWT_DrawingSurfaceInfo dsi; + private JAWT_X11DrawingSurfaceInfo x11dsi; + + public X11OnscreenGLContext(Component component, GLCapabilities capabilities, GLCapabilitiesChooser chooser) { + super(component, capabilities, chooser); + } + + protected GL createGL() + { + return new X11GLImpl(this); + } + + protected boolean isOffscreen() { + return false; + } + + public int getOffscreenContextBufferedImageType() { + throw new GLException("Should not call this"); + } + + public int getOffscreenContextReadBuffer() { + throw new GLException("Should not call this"); + } + + public boolean offscreenImageNeedsVerticalFlip() { + throw new GLException("Should not call this"); + } + + public boolean canCreatePbufferContext() { + // For now say no + return false; + } + + public synchronized GLContext createPbufferContext(GLCapabilities capabilities, + int initialWidth, + int initialHeight) { + throw new GLException("Not yet supported"); + } + + public void bindPbufferToTexture() { + throw new GLException("Should not call this"); + } + + public void releasePbufferFromTexture() { + throw new GLException("Should not call this"); + } + + protected synchronized boolean makeCurrent(Runnable initAction) throws GLException { + try { + if (!lockSurface()) { + return false; + } + return super.makeCurrent(initAction); + } catch (RuntimeException e) { + try { + unlockSurface(); + } catch (Exception e2) { + // do nothing if unlockSurface throws + } + throw(e); + } + } + + protected synchronized void free() throws GLException { + try { + super.free(); + } finally { + unlockSurface(); + } + } + + protected synchronized void swapBuffers() throws GLException { + // FIXME: this cast to int would be wrong on 64-bit platforms + // where the argument type to glXMakeCurrent would change (should + // probably make GLXDrawable, and maybe XID, Opaque as long) + GLX.glXSwapBuffers(display, (int) drawable); + } + + private boolean lockSurface() throws GLException { + if (drawable != 0) { + throw new GLException("Surface already locked"); + } + ds = getJAWT().GetDrawingSurface(component); + if (ds == null) { + // Widget not yet realized + return false; + } + int res = ds.Lock(); + if ((res & JAWTFactory.JAWT_LOCK_ERROR) != 0) { + throw new GLException("Unable to lock surface"); + } + // See whether the surface changed and if so destroy the old + // OpenGL context so it will be recreated + if ((res & JAWTFactory.JAWT_LOCK_SURFACE_CHANGED) != 0) { + if (context != 0) { + GLX.glXDestroyContext(display, context); + context = 0; + } + } + dsi = ds.GetDrawingSurfaceInfo(); + if (dsi == null) { + // Widget not yet realized + ds.Unlock(); + getJAWT().FreeDrawingSurface(ds); + ds = null; + return false; + } + x11dsi = (JAWT_X11DrawingSurfaceInfo) dsi.platformInfo(); + display = x11dsi.display(); + drawable = x11dsi.drawable(); + if (display == 0 || drawable == 0) { + // Widget not yet realized + ds.FreeDrawingSurfaceInfo(dsi); + ds.Unlock(); + getJAWT().FreeDrawingSurface(ds); + ds = null; + dsi = null; + x11dsi = null; + return false; + } + return true; + } + + private void unlockSurface() { + if (drawable == 0) { + throw new GLException("Surface already unlocked"); + } + ds.FreeDrawingSurfaceInfo(dsi); + ds.Unlock(); + getJAWT().FreeDrawingSurface(ds); + ds = null; + dsi = null; + x11dsi = null; + display = 0; + drawable = 0; + } + + protected void create() { + chooseVisualAndCreateContext(true); + } +} |