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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 net.java.games.jogl;
/** Offscreen rendering support via pbuffers. This class adds very
little functionality over the GLDrawable class; the only methods
are those which allow access to the pbuffer's contents as a
texture map and which enable offscreen rendering to floating-point
buffers. These methods are currently highly experimental and may
be removed in a future release. */
public interface GLPbuffer extends GLDrawable {
/** Indicates the GL_APPLE_float_pixels extension is being used for this pbuffer. */
public static final int APPLE_FLOAT = 1;
/** Indicates the GL_ATI_texture_float extension is being used for this pbuffer. */
public static final int ATI_FLOAT = 2;
/** Indicates the GL_NV_float_buffer extension is being used for this pbuffer. */
public static final int NV_FLOAT = 3;
/** Binds this pbuffer to its internal texture target. Only valid to
call if offscreen render-to-texture has been specified in the
GLCapabilities for this GLPbuffer. If the
render-to-texture-rectangle capability has also been specified,
this will use e.g. wglBindTexImageARB as its implementation and
cause the texture to be bound to e.g. the
GL_TEXTURE_RECTANGLE_NV state; otherwise, during the display()
phase the pixels will have been copied into an internal texture
target and this will cause that to be bound to the GL_TEXTURE_2D
state. */
public void bindTexture();
/** Unbinds the pbuffer from its internal texture target. */
public void releaseTexture();
/** Queries initialization status of this pBuffer. */
public boolean isInitialized();
/** Destroys the native resources associated with this pbuffer. It
is not valid to call display() or any other routines on this
pbuffer after it has been destroyed. */
public void destroy();
/** Indicates which vendor's extension is being used to support
floating point channels in this pbuffer if that capability was
requested in the GLCapabilities during pbuffer creation. Returns
one of NV_FLOAT, ATI_FLOAT or APPLE_FLOAT, or throws GLException
if floating-point channels were not requested for this pbuffer.
This function may only be called once the init method for this
pbuffer's GLEventListener has been called. */
public int getFloatingPointMode();
}
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