com.jogamp.opengl

Class OffscreenAutoDrawable

java.lang.Object

jogamp.opengl.GLAutoDrawableBase

javax.media.opengl.GLAutoDrawableDelegate

com.jogamp.opengl.OffscreenAutoDrawable

All Implemented Interfaces:

FPSCounter, GLAutoDrawable, GLDrawable

public class OffscreenAutoDrawable
extends GLAutoDrawableDelegate

Platform-independent class exposing FBO offscreen functionality to applications.

This class distinguishes itself from GLAutoDrawableDelegate with it's setSize(int, int) functionality.

Field Summary

Fields inherited from class javax.media.opengl.GLAutoDrawableDelegate

DEBUG

Fields inherited from interface javax.media.opengl.GLAutoDrawable

SCREEN_CHANGE_ACTION_ENABLED

Fields inherited from interface javax.media.opengl.FPSCounter

DEFAULT_FRAMES_PER_INTERVAL

Constructor Summary

Constructors

Constructor and Description
OffscreenAutoDrawable(GLDrawable drawable, GLContext context, boolean ownDevice)

Method Summary

Methods

Modifier and Type	Method and Description
FBObject	getFBObject() If the underlying GLDrawable is an FBO implementation and contains an {#link FBObject}, the same is returned.
boolean	setSize(int newWidth, int newHeight) Attempts to resize this offscreen auto drawable, if supported by the underlying {@link GLDrawable).

Methods inherited from class javax.media.opengl.GLAutoDrawableDelegate

destroy, display, getFactory, getUpstreamWidget, setRealized, swapBuffers, windowDestroyNotifyOp, windowRepaintOp, windowResizedOp

Methods inherited from class jogamp.opengl.GLAutoDrawableBase

addGLEventListener, addGLEventListener, createContext, defaultSwapBuffers, getAnimator, getAutoSwapBufferMode, getChosenGLCapabilities, getContext, getContextCreationFlags, getDelegatedDrawable, getFPSStartTime, getGL, getGLProfile, getHandle, getHeight, getLastFPS, getLastFPSPeriod, getLastFPSUpdateTime, getNativeSurface, getSkipContextReleaseThread, getTotalFPS, getTotalFPSDuration, getTotalFPSFrames, getUpdateFPSFrames, getWidth, invoke, isRealized, removeGLEventListener, removeGLEventListener, resetFPSCounter, setAnimator, setAutoSwapBufferMode, setContext, setContextCreationFlags, setGL, setSkipContextReleaseThread, setUpdateFPSFrames

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.media.opengl.GLDrawable

toString

Constructor Detail

OffscreenAutoDrawable

public OffscreenAutoDrawable(GLDrawable drawable,
                     GLContext context,
                     boolean ownDevice)

Parameters:

drawable - a valid GLDrawable, may not be realized yet.

context - a valid GLContext, may not be made current (created) yet.

ownDevice - pass true if AbstractGraphicsDevice.close() shall be issued, otherwise pass false. Closing the device is required in case the drawable is created w/ it's own new instance, e.g. offscreen drawables, and no further lifecycle handling is applied.

Method Detail

setSize

public boolean setSize(int newWidth,
              int newHeight)
                throws GLException

Attempts to resize this offscreen auto drawable, if supported by the underlying {@link GLDrawable).

Parameters:

newWidth -

newHeight -

Returns:

true if resize was executed, otherwise false.

Throws:

GLException - in case of an error during the resize operation

getFBObject

public FBObject getFBObject()

If the underlying GLDrawable is an FBO implementation and contains an {#link FBObject}, the same is returned. Otherwise returns null.