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/**
* 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 jogamp.opengl.awt;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import javax.media.opengl.GL;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import com.jogamp.opengl.util.TileRenderer;
import com.jogamp.opengl.util.TileRendererBase;
import com.jogamp.opengl.util.GLPixelBuffer.GLPixelAttributes;
import com.jogamp.opengl.util.awt.AWTGLPixelBuffer;
import com.jogamp.opengl.util.awt.AWTGLPixelBuffer.AWTGLPixelBufferProvider;
/**
* Implementing AWT {@link Graphics2D} based {@link TileRenderer} <i>painter</i>.
* <p>
* Maybe utilized for AWT printing.
* </p>
*/
public class AWTTilePainter {
public final TileRenderer renderer;
public final int componentCount;
public final double scaleMatX, scaleMatY;
public final boolean verbose;
private AWTGLPixelBuffer tBuffer = null;
private BufferedImage vFlipImage = null;
private Graphics2D g2d = null;
private AffineTransform saveAT = null;
/**
* Assumes a configured {@link TileRenderer}, i.e.
* an {@link TileRenderer#attachToAutoDrawable(GLAutoDrawable) attached}
* {@link GLAutoDrawable} with {@link TileRenderer#setTileSize(int, int, int) set tile size}.
* <p>
* Sets the renderer to {@link TileRenderer#TR_TOP_TO_BOTTOM} row order.
* </p>
* <p>
* <code>componentCount</code> reflects opaque, i.e. 4 if non opaque.
* </p>
* @param renderer
* @param componentCount
* @param scaleMatX {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatX * width pixels
* @param scaleMatY {@link Graphics2D} {@link Graphics2D#scale(double, double) scaling factor}, i.e. rendering 1/scaleMatY * height pixels
* @param verbose
*/
public AWTTilePainter(TileRenderer renderer, int componentCount, double scaleMatX, double scaleMatY, boolean verbose) {
this.renderer = renderer;
this.renderer.setGLEventListener(preTileGLEL, postTileGLEL);
this.componentCount = componentCount;
this.scaleMatX = scaleMatX;
this.scaleMatY = scaleMatY;
this.verbose = verbose;
this.renderer.setRowOrder(TileRenderer.TR_TOP_TO_BOTTOM);
}
public String toString() { return renderer.toString(); }
/**
* Caches the {@link Graphics2D} instance for rendering.
* <p>
* Copies the current {@link Graphics2D} {@link AffineTransform}
* and scales {@link Graphics2D} w/ <code>scaleMatX</code> x <code>scaleMatY</code>.<br>
* After rendering, the {@link AffineTransform} should be reset via {@link #resetGraphics2D()}.
* </p>
* <p>
* Sets the {@link TileRenderer}'s {@link TileRenderer#setImageSize(int, int) image size}
* and {@link TileRenderer#setTileOffset(int, int) tile offset} according the
* the {@link Graphics2D#getClipBounds() graphics clip bounds}.
* </p>
* @param g2d
*/
public void setupGraphics2DAndClipBounds(Graphics2D g2d) {
this.g2d = g2d;
saveAT = g2d.getTransform();
g2d.scale(scaleMatX, scaleMatY);
final Rectangle gClipOrig = g2d.getClipBounds();
final Rectangle gClip = new Rectangle(gClipOrig);
if( 0 > gClip.x ) {
gClip.width += gClip.x;
gClip.x = 0;
}
if( 0 > gClip.y ) {
gClip.height += gClip.y;
gClip.y = 0;
}
if( verbose ) {
System.err.println("AWT print.0: "+gClipOrig+" -> "+gClip);
}
renderer.setImageSize(gClip.width, gClip.height);
renderer.setTileOffset(gClip.x, gClip.y);
}
/** See {@ #setupGraphics2DAndClipBounds(Graphics2D)}. */
public void resetGraphics2D() {
g2d.setTransform(saveAT);
}
/**
* Disposes resources and {@link TileRenderer#detachFromAutoDrawable() detaches}
* the {@link TileRenderer}'s {@link GLAutoDrawable}.
*/
public void dispose() {
renderer.detachFromAutoDrawable(); // tile-renderer -> printGLAD
g2d = null;
if( null != tBuffer ) {
tBuffer.dispose();
tBuffer = null;
}
if( null != vFlipImage ) {
vFlipImage.flush();
vFlipImage = null;
}
}
final GLEventListener preTileGLEL = new GLEventListener() {
@Override
public void init(GLAutoDrawable drawable) {
}
@Override
public void dispose(GLAutoDrawable drawable) {}
@Override
public void display(GLAutoDrawable drawable) {
final GL gl = drawable.getGL();
if( null == tBuffer ) {
final int tWidth = renderer.getParam(TileRenderer.TR_TILE_WIDTH);
final int tHeight = renderer.getParam(TileRenderer.TR_TILE_HEIGHT);
final AWTGLPixelBufferProvider printBufferProvider = new AWTGLPixelBufferProvider( true /* allowRowStride */ );
final GLPixelAttributes pixelAttribs = printBufferProvider.getAttributes(gl, componentCount);
tBuffer = printBufferProvider.allocate(gl, pixelAttribs, tWidth, tHeight, 1, true, 0);
renderer.setTileBuffer(tBuffer);
vFlipImage = new BufferedImage(tBuffer.width, tBuffer.height, tBuffer.image.getType());
}
if( verbose ) {
System.err.println("XXX tile-pre "+renderer);
}
}
@Override
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {}
};
final GLEventListener postTileGLEL = new GLEventListener() {
int tTopRowHeight = 0;
@Override
public void init(GLAutoDrawable drawable) {
tTopRowHeight = 0;
}
@Override
public void dispose(GLAutoDrawable drawable) {}
@Override
public void display(GLAutoDrawable drawable) {
// Copy temporary data into raster of BufferedImage for faster
// blitting Note that we could avoid this copy in the cases
// where !offscreenDrawable.isGLOriented(),
// but that's the software rendering path which is very slow anyway.
final int tWidth = renderer.getParam(TileRendererBase.TR_CURRENT_TILE_WIDTH);
final int tHeight = renderer.getParam(TileRendererBase.TR_CURRENT_TILE_HEIGHT);
// final BufferedImage dstImage = printBuffer.image;
final BufferedImage srcImage = tBuffer.image;
final BufferedImage dstImage = vFlipImage;
final int[] src = ((DataBufferInt) srcImage.getRaster().getDataBuffer()).getData();
final int[] dst = ((DataBufferInt) dstImage.getRaster().getDataBuffer()).getData();
final int incr = tBuffer.width;
int srcPos = 0;
int destPos = (tHeight - 1) * tBuffer.width;
for (; destPos >= 0; srcPos += incr, destPos -= incr) {
System.arraycopy(src, srcPos, dst, destPos, incr);
}
// Draw resulting image in one shot
final int tRows = renderer.getParam(TileRenderer.TR_ROWS);
final int tRow = renderer.getParam(TileRenderer.TR_CURRENT_ROW);
final int pX = renderer.getParam(TileRendererBase.TR_CURRENT_TILE_X_POS);
final int pYf;
if( tRow == tRows - 1 ) {
tTopRowHeight = tHeight;
pYf = 0;
} else if( tRow == tRows - 2 ){
pYf = tTopRowHeight;
} else {
pYf = ( tRows - 2 - tRow ) * tHeight + tTopRowHeight;
}
final Shape oClip = g2d.getClip();
g2d.clipRect(pX, pYf, tWidth, tHeight);
g2d.drawImage(dstImage, pX, pYf, dstImage.getWidth(), dstImage.getHeight(), null); // Null ImageObserver since image data is ready.
if( verbose ) {
System.err.println("XXX tile-post.X clip "+oClip+" -> "+g2d.getClip());
g2d.setColor(Color.BLACK);
g2d.drawRect(pX, pYf, tWidth, tHeight);
final Rectangle r = oClip.getBounds();
g2d.setColor(Color.YELLOW);
g2d.drawRect(r.x, r.y, r.width, r.height);
System.err.println("XXX tile-post.X "+renderer);
System.err.println("XXX tile-post.X dst-img "+dstImage.getWidth()+"x"+dstImage.getHeight()+" -> "+pX+"/"+pYf);
}
g2d.setClip(oClip);
}
@Override
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {}
};
}
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