1 files changed, 109 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/awt/AWTGLReadBufferUtil.java b/src/jogl/classes/com/jogamp/opengl/util/awt/AWTGLReadBufferUtil.java
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+++ b/src/jogl/classes/com/jogamp/opengl/util/awt/AWTGLReadBufferUtil.java
@@ -0,0 +1,109 @@
+/**
+ * Copyright 2013 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.awt;
+
+import java.awt.image.BufferedImage;
+
+import javax.media.opengl.GL;
+import javax.media.opengl.GLDrawable;
+import javax.media.opengl.GLProfile;
+
+import com.jogamp.opengl.util.GLReadBufferUtil;
+
+/**
+ * {@link GLReadBufferUtil} specialization allowing to
+ * read out a frambuffer to an AWT BufferedImage
+ * utilizing {@link AWTPixelBufferProviderInt} for further AWT processing.
+ */
+public class AWTGLReadBufferUtil extends GLReadBufferUtil {
+    /**
+     * {@inheritDoc}
+     *
+     * @param alpha
+     */
+    public AWTGLReadBufferUtil(GLProfile glp, boolean alpha) {
+        super(new AWTGLPixelBuffer.AWTGLPixelBufferProvider( glp.isGL2ES3() /* allowRowStride */ ), alpha, false);
+    }
+
+    public AWTGLPixelBuffer getAWTGLPixelBuffer() { return (AWTGLPixelBuffer)this.getPixelBuffer(); }
+
+    /**
+     * Read the drawable's pixels to TextureData and Texture, if requested at construction,
+     * and returns an aligned {@link BufferedImage}.
+     *
+     * @param gl the current GL context object. It's read drawable is being used as the pixel source.
+     * @param awtOrientation flips the data vertically if <code>true</code>.
+     *                       The context's drawable {@link GLDrawable#isGLOriented()} state
+     *                       is taken into account.
+     *                       Vertical flipping is propagated to TextureData
+     *                       and handled in a efficient manner there (TextureCoordinates and TextureIO writer).
+     * @see #AWTGLReadBufferUtil(GLProfile, boolean)
+     */
+    public BufferedImage readPixelsToBufferedImage(GL gl, boolean awtOrientation) {
+        return readPixelsToBufferedImage(gl, 0, 0, 0, 0, awtOrientation);
+    }
+
+    /**
+     * Read the drawable's pixels to TextureData and Texture, if requested at construction,
+     * and returns an aligned {@link BufferedImage}.
+     *
+     * @param gl the current GL context object. It's read drawable is being used as the pixel source.
+     * @param inX readPixel x offset
+     * @param inY readPixel y offset
+     * @param inWidth optional readPixel width value, used if [1 .. drawable.width], otherwise using drawable.width
+     * @param inHeight optional readPixel height, used if [1 .. drawable.height], otherwise using drawable.height
+     * @param awtOrientation flips the data vertically if <code>true</code>.
+     *                       The context's drawable {@link GLDrawable#isGLOriented()} state
+     *                       is taken into account.
+     *                       Vertical flipping is propagated to TextureData
+     *                       and handled in a efficient manner there (TextureCoordinates and TextureIO writer).
+     * @see #AWTGLReadBufferUtil(GLProfile, boolean)
+     */
+    public BufferedImage readPixelsToBufferedImage(GL gl, int inX, int inY, int inWidth, int inHeight, boolean awtOrientation) {
+        final GLDrawable drawable = gl.getContext().getGLReadDrawable();
+        final int width, height;
+        if( 0 >= inWidth || drawable.getWidth() < inWidth ) {
+            width = drawable.getWidth();
+        } else {
+            width = inWidth;
+        }
+        if( 0 >= inHeight || drawable.getHeight() < inHeight ) {
+            height = drawable.getHeight();
+        } else {
+            height= inHeight;
+        }
+        if( readPixelsImpl(drawable, gl, inX, inY, width, height, awtOrientation) ) {
+            final BufferedImage image = getAWTGLPixelBuffer().getAlignedImage(width, height);
+            if( getTextureData().getMustFlipVertically()  ) {
+                ImageUtil.flipImageVertically(image);
+            }
+            return image;
+        }
+        return null;
+    }
+}