Bug 1021: Add GenericStereoDevice* Supporting custom configurations; Hook-in oculusvr-sdk java distortion-mesh calculation if available

StereoDeviceFactory support new GenericStereoDeviceFactory, with it's GenericStereoDevice and GenericStereoDeviceRenderer. GenericStereoDevice maintains different configurations, triggered either by passing a GenericStereoDevice.Config instance directly or by the device-index parameter: - 0: monoscopi device: No post-processing - 1: stereoscopic device SBS: No post-processing - 2: stereoscopic device SBS + Lenses: Distortion post-processing (only available w/ oculusvr-sdk sub-module) Producing a 'GenericStereoDevice.Config' instance is self containing and may extend if supporting more device types like top-bottom, interlaced etc. StereoDemo01 handles all use-cases and may be used as a test-bed to add and experiment with stereoscopy, devices and settings.
author: Sven Gothel <sgothel@jausoft.com> 2014-07-07 23:46:19 +0200
committer: Sven Gothel <sgothel@jausoft.com> 2014-07-07 23:46:19 +0200
commit: 38e51e4a5f6f35c658df10f6d48a33e3ffaea2f3 (patch)
tree: 259024b16429986ab48fd49a9bd2667dad2b85eb /src/jogl/classes/jogamp/opengl/util/stereo/ScaleAndOffset2D.java
parent: 06fc570f70dc5ccfad7399d8426bdf224c239a5a (diff)
1 files changed, 107 insertions, 0 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/stereo/ScaleAndOffset2D.java b/src/jogl/classes/jogamp/opengl/util/stereo/ScaleAndOffset2D.java
new file mode 100644
index 000000000..ce154e03e
--- /dev/null
+++ b/src/jogl/classes/jogamp/opengl/util/stereo/ScaleAndOffset2D.java
@@ -0,0 +1,107 @@
+/**
+ * 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 jogamp.opengl.util.stereo;
+
+import javax.media.nativewindow.util.DimensionImmutable;
+import javax.media.nativewindow.util.RectangleImmutable;
+
+import com.jogamp.opengl.math.FovHVHalves;
+import com.jogamp.opengl.math.VectorUtil;
+
+/**
+ * 2D scale and offset NDC class,
+ * providing conversion from {@link FovHVHalves} in tangent to NDC space.
+ * <p>
+ * See <a href="https://www.opengl.org/wiki/Compute_eye_space_from_window_space">OpenGL.org: Compute eye space from window space</a>
+ * </p>
+ */
+public final class ScaleAndOffset2D {
+    /** Scale for x- and y-component. */
+    final float[] scale;
+    /** Offset for x- and y-component. */
+    final float[] offset;
+
+    private static final float[] vec2Half = new float[] { 0.5f, 0.5f };
+
+    public String toString() {
+        return "[offset "+offset[0]+" / "+offset[1]+", scale "+scale[0]+" x "+scale[1]+"]";
+    }
+
+    public ScaleAndOffset2D(final float[] scale, final float[] offset) {
+        this.scale = scale;
+        this.offset = offset;
+    }
+
+    /**
+     * Create the <i>Normalized Device Coordinate Space</i> (NDC) [-1,+1] instance
+     * from the given <code>fovHVHalves</code>.
+     */
+    public ScaleAndOffset2D(final FovHVHalves fovHVHalves) {
+        final FovHVHalves tanFovHVHalves = fovHVHalves.toTangents();
+        final float projXScale = 2.0f / ( tanFovHVHalves.left+ tanFovHVHalves.right);
+        final float projYScale = 2.0f / ( tanFovHVHalves.top + tanFovHVHalves.bottom );
+        final float projXOffset = ( tanFovHVHalves.left - tanFovHVHalves.right ) * projXScale * 0.5f;
+        final float projYOffset = ( tanFovHVHalves.top - tanFovHVHalves.bottom ) * projYScale * 0.5f;
+
+        this.scale = new float[] { projXScale, projYScale };
+        this.offset = new float[] { projXOffset, projYOffset };
+    }
+
+    /**
+     * Create the <i>Normalized Device Coordinate Space</i> (NDC) [-1,+1] instance
+     * from the given <code>fovHVHalves</code>, for the subsection of the <code>render-viewport</code> within the <code>rendertarget-size</code>.
+     */
+    public ScaleAndOffset2D(final FovHVHalves fovHVHalves, final DimensionImmutable rendertargetSize, final RectangleImmutable renderViewport) {
+        final ScaleAndOffset2D eyeToSourceNDC = new ScaleAndOffset2D(fovHVHalves);
+        final float[] vec2Tmp1 = new float[2];
+        final float[] vec2Tmp2 = new float[2];
+        final float[] scale  = VectorUtil.scaleVec2(vec2Tmp1, eyeToSourceNDC.scale, 0.5f);
+        final float[] offset = VectorUtil.addVec2(vec2Tmp2, VectorUtil.scaleVec2(vec2Tmp2, eyeToSourceNDC.offset, 0.5f), vec2Half);
+
+        final float[] scale2 = new float[] { (float)renderViewport.getWidth() / (float)rendertargetSize.getWidth(),
+                                             (float)renderViewport.getHeight() / (float)rendertargetSize.getHeight() };
+
+        final float[] offset2 = new float[] { (float)renderViewport.getX() / (float)rendertargetSize.getWidth(),
+                                              (float)renderViewport.getY() / (float)rendertargetSize.getHeight() };
+
+        VectorUtil.scaleVec2(scale, scale, scale2);
+        VectorUtil.addVec2(offset, VectorUtil.scaleVec2(offset, offset, scale2), offset2);
+
+        this.scale = scale;
+        this.offset = offset;
+    }
+
+    /**
+     * Return the <i>tangent FOV space</i> of this <i>eye to source NDC</i> instance.
+     */
+    public final float[] convertToTanFovSpace(final float[] rendertargetNDC) {
+        final float[] vec2Tmp1 = new float[2];
+        return VectorUtil.divVec2(vec2Tmp1, VectorUtil.subVec2(vec2Tmp1, rendertargetNDC, this.offset), this.scale);
+    }
+
+}
+\ No newline at end of file
author	Sven Gothel <sgothel@jausoft.com>	2014-07-07 23:46:19 +0200
committer	Sven Gothel <sgothel@jausoft.com>	2014-07-07 23:46:19 +0200
commit	38e51e4a5f6f35c658df10f6d48a33e3ffaea2f3 (patch)
tree	259024b16429986ab48fd49a9bd2667dad2b85eb /src/jogl/classes/jogamp/opengl/util/stereo/ScaleAndOffset2D.java
parent	06fc570f70dc5ccfad7399d8426bdf224c239a5a (diff)