From f56e36bd4a497643756ab737422eb356b963b27d Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Wed, 31 Oct 2012 16:41:28 +0100
Subject: Fix ProjectFloat (Bug 633): Adding missing offset of sliced buffer
 usage; reduce buffer usage (performance) in favor of float[].

Thomas De Bodt reported this error and provided the unit test.
---
 .../test/junit/jogl/acore/TestPMVMatrix02NEWT.java | 109 +++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 src/test/com/jogamp/opengl/test/junit/jogl/acore/TestPMVMatrix02NEWT.java

(limited to 'src/test/com/jogamp')

diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestPMVMatrix02NEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestPMVMatrix02NEWT.java
new file mode 100644
index 000000000..4e959d460
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestPMVMatrix02NEWT.java
@@ -0,0 +1,109 @@
+/**
+ * Copyright 2012 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.test.junit.jogl.acore;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import com.jogamp.opengl.util.PMVMatrix;
+
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+import java.nio.FloatBuffer;
+
+import static org.junit.Assert.assertArrayEquals;
+
+/**
+ * @author Thomas De Bodt
+ */
+public class TestPMVMatrix02NEWT {
+
+  private PMVMatrix fMat;
+
+  @Before
+  public void setUp() throws Exception {
+    fMat = new PMVMatrix();
+  }
+
+  @Test
+  public void testLookAtNegZIsNoOp() throws Exception {
+    fMat.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+    // Look towards -z
+    fMat.gluLookAt(
+        0, 0, 0,
+        0, 0, -1,
+        0, 1, 0
+    );
+    FloatBuffer mvMatrix = fMat.glGetMvMatrixf();
+    float[] mvMatrixArr = new float[16];
+    mvMatrix.asReadOnlyBuffer().get(mvMatrixArr);
+    assertArrayEquals(
+        /**
+         * The 3 rows of the matrix (= the 3 columns of the array/buffer) should be: side, up, -forward.
+         */
+        new float[] {
+            1, 0, 0, 0,
+            0, 1, 0, 0,
+            0, 0, 1, 0,
+            0, 0, 0, 1
+        },
+        mvMatrixArr,
+        1e-6f
+    );
+  }
+  @Test
+  public void testLookAtPosY() throws Exception {
+    fMat.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+    // Look towards +y
+    fMat.gluLookAt(
+        0, 0, 0,
+        0, 1, 0,
+        0, 0, 1
+    );
+    FloatBuffer mvMatrix = fMat.glGetMvMatrixf();
+    float[] mvMatrixArr = new float[16];
+    mvMatrix.asReadOnlyBuffer().get(mvMatrixArr);
+    assertArrayEquals(
+        /**
+         * The 3 rows of the matrix (= the 3 columns of the array/buffer) should be: side, up, -forward.
+         */
+        new float[] {
+            1, 0, 0, 0,
+            0, 0, -1, 0,
+            0, 1, 0, 0,
+            0, 0, 0, 1
+        },
+        mvMatrixArr,
+        1e-6f
+    );
+  }
+
+  public static void main(String args[]) {
+      org.junit.runner.JUnitCore.main(TestPMVMatrix02NEWT.class.getName());
+  }
+}
-- 
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