Adds a utility to convert Ardor3D images into JOGL images (untested)

1 files changed, 99 insertions, 0 deletions

diff --git a/ardor3d-jogl/src/main/java/com/ardor3d/image/util/jogl/JoglImageUtil.java b/ardor3d-jogl/src/main/java/com/ardor3d/image/util/jogl/JoglImageUtil.java
new file mode 100644
index 0000000..0e9a2de
--- /dev/null
+++ b/ardor3d-jogl/src/main/java/com/ardor3d/image/util/jogl/JoglImageUtil.java
@@ -0,0 +1,99 @@
+/**
+ * Copyright (c) 2008-2010 Ardor Labs, Inc.
+ *
+ * This file is part of Ardor3D.
+ *
+ * Ardor3D is free software: you can redistribute it and/or modify it 
+ * under the terms of its license which may be found in the accompanying
+ * LICENSE file or at <http://www.ardor3d.com/LICENSE>.
+ */
+
+package com.ardor3d.image.util.jogl;
+
+import java.nio.ByteBuffer;
+import java.util.List;
+
+import javax.media.nativewindow.util.PixelFormat;
+
+import com.ardor3d.framework.jogl.CapsUtil;
+import com.ardor3d.image.Image;
+import com.ardor3d.scene.state.jogl.util.JoglTextureUtil;
+import com.google.common.collect.Lists;
+import com.jogamp.common.nio.Buffers;
+import com.jogamp.opengl.util.GLPixelBuffer.GLPixelAttributes;
+import com.jogamp.opengl.util.texture.TextureData;
+
+/**
+ * Utility methods for converting Ardor3D Images to JOGL texture data.
+ */
+public class JoglImageUtil {
+
+    /**
+     * Convert the given Ardor3D Image to a List of TextureData instances. It is a List because Ardor3D Images may
+     * contain multiple layers (for example, in the case of cube maps or 3D textures).
+     * 
+     * @param input
+     *            the Ardor3D Image to convert
+     * @return the TextureData instance(s) created in the conversion
+     */
+    public static List<TextureData> convertToJogl(final Image input) {
+        return (convertToJogl(new CapsUtil(), input));
+    }
+
+    /**
+     * Convert the given Ardor3D Image to a List of TextureData instances. It is a List because Ardor3D Images may
+     * contain multiple layers (for example, in the case of cube maps or 3D textures).
+     * 
+     * @param capsUtil
+     * @param input
+     *            the Ardor3D Image to convert
+     * @return the TextureData instance(s) created in the conversion
+     */
+    public static List<TextureData> convertToJogl(final CapsUtil capsUtil, final Image input) {
+        // count the number of layers we will be converting.
+        final int size = input.getData().size();
+
+        // grab our image width and height
+        final int width = input.getWidth(), height = input.getHeight();
+
+        // create our return list
+        final List<TextureData> rVal = Lists.newArrayList();
+
+        // go through each layer
+        for (int i = 0; i < size; i++) {
+            final int border = 0;// the texture can have a border whereas an image has none
+            // final int pixFormat = JoglTextureUtil.getGLPixelFormat(input.getDataFormat());
+            final int pixDataType = JoglTextureUtil.getGLPixelDataType(input.getDataType());
+            // final int bpp = ImageUtils.getPixelByteSize(input.getDataFormat(), input.getDataType());
+            final ByteBuffer data = input.getData(i);
+            data.rewind();
+            final ByteBuffer dest = Buffers.copyByteBuffer(data);
+            final PixelFormat pixelFormat;
+            switch (input.getDataFormat()) {
+                case RGBA:
+                    pixelFormat = PixelFormat.RGBA8888;
+                    break;
+                case BGR:
+                    pixelFormat = PixelFormat.BGR888;
+                    break;
+                case BGRA:
+                    pixelFormat = PixelFormat.BGRA8888;
+                    break;
+                case RGB:
+                    pixelFormat = PixelFormat.RGB888;
+                    break;
+                case Luminance:
+                    pixelFormat = PixelFormat.LUMINANCE;
+                    break;
+                default:
+                    pixelFormat = null;
+            }
+            final GLPixelAttributes pixelAtt = GLPixelAttributes.convert(pixelFormat, capsUtil.getProfile());
+            // pixel data type = internal format?
+            final TextureData image = new TextureData(capsUtil.getProfile(), pixDataType, width, height, border,
+                    pixelAtt, false, false, false, dest, null);
+            rVal.add(image);
+        }
+        return rVal;
+    }
+}