Bug 1021: Refine Stereo Rendering API and OculusVR implementing renderer

Refine API in regards to proper package names, interface
and high-level access to eye specific constant parameter
and variable eye movement.

+++

Commit 36327e24cf586b50bf18e87d7d13d53eb41cf1d9 introduced 'GLEventListener2'

Move javax.media.opengl.GLEventListener2
  -> com.jogamp.opengl.util.CustomRendererListener
    -> com.jogamp.opengl.util.stereo.StereoRendererListener

StereoRendererListener adds stereoscopic specific:

  public void reshapeEye(final GLAutoDrawable drawable, final int x, final int y, final int width, final int height,
                         final EyeParameter eyeParam, final EyePose eyePose);

.. see below.

++

Add com.jogamp.opengl.util.stereo:
  - EyeParameter (Constant eye parameters, like IPD and FOV)
  - EyePose (Current eye position and orientation)

+++

Add com.jogamp.opengl.math.FovHVHalves to support
non-centered bi-directional FOV for lenses.

Add respective FloatUtil.makePerspective(.. FovHVHalves fovhv ) variant.

+++

1 files changed, 68 insertions, 0 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/stereo/EyeParameter.java b/src/jogl/classes/com/jogamp/opengl/util/stereo/EyeParameter.java
new file mode 100644
index 000000000..7774d67e2
--- /dev/null
+++ b/src/jogl/classes/com/jogamp/opengl/util/stereo/EyeParameter.java
@@ -0,0 +1,68 @@
+/**
+ * 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 com.jogamp.opengl.math.FovHVHalves;
+
+/**
+ * Constant parameter for one eye.
+ */
+public final class EyeParameter {
+    /** Eye number, <code>0</code> for the left eye and <code>1</code> for the right eye. */
+    public final int number;
+
+    /** float[3] eye position vector used to define eye height in meter relative to <i>actor</i>. */
+    public final float[] positionOffset;
+
+    /** Field of view in both directions, may not be centered, either in radians or tangent. */
+    public final FovHVHalves fovhv;
+
+    /** IPD related horizontal distance from nose to pupil in meter. */
+    public final float distNoseToPupilX;
+
+    /** Vertical distance from middle-line to pupil in meter. */
+    public final float distMiddleToPupilY;
+
+    /** Z-axis eye relief in meter. */
+    public final float eyeReliefZ;
+
+    public EyeParameter(final int number, final float[] positionOffset, final FovHVHalves fovhv,
+                        final float distNoseToPupil, final float verticalDelta, final float eyeRelief) {
+        this.number = number;
+        this.positionOffset = new float[3];
+        System.arraycopy(positionOffset, 0, this.positionOffset, 0, 3);
+        this.fovhv = fovhv;
+        this.distNoseToPupilX = distNoseToPupil;
+        this.distMiddleToPupilY = verticalDelta;
+        this.eyeReliefZ = eyeRelief;
+    }
+    public final String toString() {
+        return "EyeParam[num"+number+", posOff["+positionOffset[0]+", "+positionOffset[1]+", "+positionOffset[2]+"], "+fovhv+
+                      ", distPupil[noseX "+distNoseToPupilX+", middleY "+distMiddleToPupilY+", reliefZ "+eyeReliefZ+"]]";
+    }
+}
\ No newline at end of file