diff options
Diffstat (limited to 'src/jogl/classes/javax/media/opengl/GLDrawable.java')
| -rw-r--r-- | src/jogl/classes/javax/media/opengl/GLDrawable.java | 132 |
1 files changed, 85 insertions, 47 deletions
diff --git a/src/jogl/classes/javax/media/opengl/GLDrawable.java b/src/jogl/classes/javax/media/opengl/GLDrawable.java index 2b86a04ba..3c354a240 100644 --- a/src/jogl/classes/javax/media/opengl/GLDrawable.java +++ b/src/jogl/classes/javax/media/opengl/GLDrawable.java @@ -1,22 +1,22 @@ /* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * Copyright (c) 2010 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: - * + * * - 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 @@ -29,11 +29,11 @@ * 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. */ @@ -53,41 +53,44 @@ import javax.media.nativewindow.NativeSurface; public interface GLDrawable { /** * Creates a new context for drawing to this drawable that will - * optionally share display lists and other server-side OpenGL - * objects with the specified GLContext. <P> - * + * optionally share buffer objects, textures and other server-side OpenGL + * objects with the specified GLContext. + * <p> * The GLContext <code>share</code> need not be associated with this * GLDrawable and may be null if sharing of display lists and other * objects is not desired. See the note in the overview * documentation on - * <a href="../../../overview-summary.html#SHARING">context sharing</a>. + * <a href="../../../spec-overview.html#SHARING">context sharing</a>. + * </p> */ public GLContext createContext(GLContext shareWith); /** - * Indicates to on-screen GLDrawable implementations whether the - * underlying window has been created and can be drawn into. End - * users do not need to call this method; it is not necessary to - * call <code>setRealized</code> on a GLCanvas, a GLJPanel, or a - * GLPbuffer, as these perform the appropriate calls on their - * underlying GLDrawables internally. - * - * <P> - * + * Indicates to GLDrawable implementations whether the + * underlying {@link NativeSurface surface} has been created and can be drawn into. + * <p> + * If realized, the {@link #getHandle() drawable handle} may become + * valid while it's {@link NativeSurface surface} is being {@link NativeSurface#lockSurface() locked}. + * </p> + * <p> + * End users do not need to call this method; it is not necessary to + * call <code>setRealized</code> on a {@link GLAutoDrawable} + * as these perform the appropriate calls on their underlying GLDrawables internally. + * </p> + * <p> * Developers implementing new OpenGL components for various window * toolkits need to call this method against GLDrawables obtained - * from the GLDrawableFactory via the {@link - * GLDrawableFactory#getGLDrawable - * GLDrawableFactory.getGLDrawable()} method. It must typically be + * from the GLDrawableFactory via the + * {@link GLDrawableFactory#createGLDrawable(NativeSurface)} method. + * It must typically be * called with an argument of <code>true</code> when the component * associated with the GLDrawable is realized and with an argument * of <code>false</code> just before the component is unrealized. * For the AWT, this means calling <code>setRealized(true)</code> in * the <code>addNotify</code> method and with an argument of * <code>false</code> in the <code>removeNotify</code> method. - * - * <P> - * + * </p> + * <p> * <code>GLDrawable</code> implementations should handle multiple * cycles of <code>setRealized(true)</code> / * <code>setRealized(false)</code> calls. Most, if not all, Java @@ -101,32 +104,40 @@ public interface GLDrawable { * <code>GLDrawable</code> to re-initialize and destroy any * associated resources as the component becomes realized and * unrealized, respectively. - * - * <P> - * - * With an argument of <code>true</code>, - * the minimum implementation shall call - * {@link NativeSurface#lockSurface() NativeSurface's lockSurface()} and if successfull: + * </p> + * <p> + * With an argument of <code>true</code>, + * the minimum implementation shall call + * {@link NativeSurface#lockSurface() NativeSurface's lockSurface()} and if successful: * <ul> - * <li> Update the {@link GLCapabilities}, which are associated with + * <li> Update the {@link GLCapabilities}, which are associated with * the attached {@link NativeSurface}'s {@link AbstractGraphicsConfiguration}.</li> * <li> Release the lock with {@link NativeSurface#unlockSurface() NativeSurface's unlockSurface()}.</li> * </ul><br> * This is important since {@link NativeSurface#lockSurface() NativeSurface's lockSurface()} * ensures resolving the window/surface handles, and the drawable's {@link GLCapabilities} * might have changed. - * - * <P> - * + * </p> + * <p> * Calling this method has no other effects. For example, if * <code>removeNotify</code> is called on a Canvas implementation * for which a GLDrawable has been created, it is also necessary to * destroy all OpenGL contexts associated with that GLDrawable. This * is not done automatically by the implementation. + * </p> + * @see #isRealized() + * @see #getHandle() + * @see NativeSurface#lockSurface() */ public void setRealized(boolean realized); - /** @return true if this drawable is realized, otherwise false */ + /** + * Returns <code>true</code> if this drawable is realized, otherwise <code>true</code>. + * <p> + * A drawable can be realized and unrealized via {@link #setRealized(boolean)}. + * </p> + * @see #setRealized(boolean) + */ public boolean isRealized(); /** Returns the current width of this GLDrawable. */ @@ -135,6 +146,20 @@ public interface GLDrawable { /** Returns the current height of this GLDrawable. */ public int getHeight(); + /** + * Returns <code>true</code> if the drawable is rendered in + * OpenGL's coordinate system, <i>origin at bottom left</i>. + * Otherwise returns <code>false</code>, i.e. <i>origin at top left</i>. + * <p> + * Default impl. is <code>true</code>, i.e. OpenGL coordinate system. + * </p> + * <p> + * Currently only MS-Windows bitmap offscreen drawable uses a non OpenGL orientation and hence returns <code>false</code>.<br/> + * This removes the need of a vertical flip when used in AWT or Windows applications. + * </p> + */ + public boolean isGLOriented(); + /** Swaps the front and back buffers of this drawable. For {@link GLAutoDrawable} implementations, when automatic buffer swapping is enabled (as is the default), this method is called @@ -146,10 +171,10 @@ public interface GLDrawable { On some platforms, the pixel format is not directly associated with the drawable; a best attempt is made to return a reasonable value in this case. <br> - This object shall be directly associated to the attached {@link NativeSurface}'s + This object shall be directly associated to the attached {@link NativeSurface}'s {@link AbstractGraphicsConfiguration}, and if changes are necessary, they should reflect those as well. - @return A copy of the queried object. + @return The immutable queried instance. */ public GLCapabilitiesImmutable getChosenGLCapabilities(); @@ -159,23 +184,36 @@ public interface GLDrawable { public GLProfile getGLProfile(); /** - * Returns the underlying native surface which surface handle + * Returns the underlying native surface which surface handle * represents this OpenGL drawable's native resource. - * + * * @see #getHandle() */ public NativeSurface getNativeSurface(); - /** - * This is the GL/Windowing drawable handle.<br> - * It is usually the {@link javax.media.nativewindow.NativeSurface#getSurfaceHandle()}, - * ie the native surface handle of the underlying windowing toolkit.<br> - * However, on X11/GLX this reflects a GLXDrawable, which represents a GLXWindow, GLXPixmap, or GLXPbuffer.<br> - * On EGL, this represents the EGLSurface.<br> + /** + * Returns the GL drawable handle, + * guaranteed to be valid after {@link #setRealized(boolean) realization} + * <i>and</i> while it's {@link NativeSurface surface} is being {@link NativeSurface#lockSurface() locked}. + * <p> + * It is usually identical to the underlying windowing toolkit {@link NativeSurface surface}'s + * {@link javax.media.nativewindow.NativeSurface#getSurfaceHandle() handle} + * or an intermediate layer to suite GL, e.g. an EGL surface. + * </p> + * <p> + * On EGL it is represented by the EGLSurface.<br> + * On X11/GLX it is represented by either the Window XID, GLXPixmap, or GLXPbuffer.<br> + * On Windows it is represented by the HDC, which may change with each {@link NativeSurface#lockSurface()}.<br> + * </p> + * @see #setRealized(boolean) + * @see NativeSurface#lockSurface() + * @see NativeSurface#unlockSurface() */ public long getHandle(); + /** Return the {@link GLDrawableFactory} being used to create this instance. */ public GLDrawableFactory getFactory(); + @Override public String toString(); } |