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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 com.jogamp.opengl.util.stereo;
import javax.media.nativewindow.util.DimensionImmutable;
import javax.media.nativewindow.util.PointImmutable;
import jogamp.opengl.Debug;
import com.jogamp.opengl.math.FovHVHalves;
/**
* Interface describing a native stereoscopic device
*/
public interface StereoDevice {
public static final boolean DEBUG = Debug.debug("StereoDevice");
public static final boolean DUMP_DATA = Debug.isPropertyDefined("jogl.debug.StereoDevice.DumpData", true);
/** Merely a class providing a type-tag for extensions */
public static class Config {
// NOP
}
/** Disposes this {@link StereoDevice}. */
public void dispose();
/**
* If operation within a device spanning virtual desktop,
* returns the device position.
* <p>
* Otherwise simply 0/0.
* </p>
*/
public PointImmutable getPosition();
/**
* Returns the required surface size in pixel.
*/
public DimensionImmutable getSurfaceSize();
/**
* Return the device default eye position offset for {@link #createRenderer(int, int, float[], FovHVHalves[], float)}.
* <p>
* Result is an array of float values for
* <ul>
* <li><i>right</i> (positive)</li>
* <li><i>up</i> (positive)</li>
* <li><i>forward</i> (negative)</li>
* </ul>
* </p>
* @return
*/
public float[] getDefaultEyePositionOffset();
/**
* Returns the device default {@link FovHVHalves} for all supported eyes
* in natural order, i.e. left and right if supported.
* <p>
* Monoscopic devices return an array length of one, without the value for the right-eye!
* </p>
*/
public FovHVHalves[] getDefaultFOV();
/** Start or stop sensors. Returns true if action was successful, otherwise false. */
public boolean startSensors(boolean start);
/** Return true if sensors have been started, false otherwise */
public boolean getSensorsStarted();
/**
* Returns an array of the preferred eye rendering order.
* The array length reflects the supported eye count.
* <p>
* Monoscopic devices only support one eye, where stereoscopic device two eyes.
* </p>
*/
public int[] getEyeRenderOrder();
/**
* Returns the supported distortion compensation by the {@link StereoDeviceRenderer},
* e.g. {@link StereoDeviceRenderer#DISTORTION_BARREL}, {@link StereoDeviceRenderer#DISTORTION_CHROMATIC}, etc.
* @see StereoDeviceRenderer#getDistortionBits()
* @see #createRenderer(int, int, float[], FovHVHalves[], float, int)
* @see #getRecommendedDistortionBits()
* @see #getMinimumDistortionBits()
*/
public int getSupportedDistortionBits();
/**
* Returns the recommended distortion compensation bits for the {@link StereoDeviceRenderer},
* e.g. {@link StereoDeviceRenderer#DISTORTION_BARREL}, {@link StereoDeviceRenderer#DISTORTION_CHROMATIC}
* {@link StereoDeviceRenderer#DISTORTION_VIGNETTE}.
* <p>
* User shall use the recommended distortion compensation to achieve a distortion free view.
* </p>
* @see StereoDeviceRenderer#getDistortionBits()
* @see #createRenderer(int, int, float[], FovHVHalves[], float, int)
* @see #getSupportedDistortionBits()
* @see #getMinimumDistortionBits()
*/
public int getRecommendedDistortionBits();
/**
* Returns the minimum distortion compensation bits as required by the {@link StereoDeviceRenderer},
* e.g. {@link StereoDeviceRenderer#DISTORTION_BARREL} in case the stereoscopic display uses [a]spherical lenses.
* <p>
* Minimum distortion compensation bits are being enforced by the {@link StereoDeviceRenderer}.
* </p>
* @see #getSupportedDistortionBits()
* @see #getRecommendedDistortionBits()
* @see StereoDeviceRenderer#getDistortionBits()
* @see #createRenderer(int, int, float[], FovHVHalves[], float, int)
*/
public int getMinimumDistortionBits();
/**
* Create a new {@link StereoDeviceRenderer} instance.
*
* @param distortionBits {@link StereoDeviceRenderer} distortion bits, e.g. {@link StereoDeviceRenderer#DISTORTION_BARREL}, etc,
* see {@link #getRecommendedDistortionBits()}.
* @param textureCount desired texture count for post-processing, see {@link StereoDeviceRenderer#getTextureCount()} and {@link StereoDeviceRenderer#ppAvailable()}
* @param eyePositionOffset eye position offset, e.g. {@link #getDefaultEyePositionOffset()}.
* @param eyeFov FovHVHalves[] field-of-view per eye, e.g. {@link #getDefaultFOV()}. May contain only one value for monoscopic devices,
* see {@link #getEyeRenderOrder()}.
* @param pixelsPerDisplayPixel
* @param textureUnit
* @return
*/
public StereoDeviceRenderer createRenderer(final int distortionBits,
final int textureCount, final float[] eyePositionOffset,
final FovHVHalves[] eyeFov, final float pixelsPerDisplayPixel, final int textureUnit);
}
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