Reorganized and added code in TextureIO and Texture classes to support

cubemap generation as well as complete replacement of the texture's
image, not just a sub-image. Added setTexParameteri to provide control
over things like the GL_TEXTURE_WRAP_ modes. Ported JOGL demos to use
new TextureIO class instead of TGAImage and ImageIO directly. Fixed
longstanding bug in ExaminerViewer's setting up of inverse rotation
causing errors in loading of uffizi cubemap.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@163 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4

1 files changed, 77 insertions, 0 deletions

diff --git a/src/demos/util/Cubemap.java b/src/demos/util/Cubemap.java
new file mode 100755
index 0000000..fc7cd16
--- /dev/null
+++ b/src/demos/util/Cubemap.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2003-2005 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution 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.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package demos.util;
+
+import java.io.*;
+
+import javax.media.opengl.*;
+import com.sun.opengl.utils.*;
+
+/** Helper class for loading cubemaps from a set of textures. */
+
+public class Cubemap {
+  private static final String[] suffixes = { "posx", "negx", "posy", "negy", "posz", "negz" };
+  private static final int[] targets = { GL.GL_TEXTURE_CUBE_MAP_POSITIVE_X,
+                                         GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
+                                         GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
+                                         GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
+                                         GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
+                                         GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Z };
+
+  public static Texture loadFromStreams(ClassLoader scope,
+                                        String basename,
+                                        String suffix,
+                                        boolean mipmapped) throws IOException, GLException {
+    Texture cubemap = TextureIO.newTexture(GL.GL_TEXTURE_CUBE_MAP);
+
+    for (int i = 0; i < suffixes.length; i++) {
+      String resourceName = basename + suffixes[i] + "." + suffix;
+      TextureData data = TextureIO.newTextureData(scope.getResourceAsStream(resourceName),
+                                                  mipmapped,
+                                                  TextureIO.getFileSuffix(resourceName));
+      if (data == null) {
+        throw new IOException("Unable to load texture " + resourceName);
+      }
+      cubemap.updateImage(data, targets[i]);
+    }
+
+    return cubemap;
+  }
+}