--- a/jdk/src/java.desktop/share/classes/sun/java2d/pipe/DrawImage.java Thu Nov 27 14:27:46 2014 +0300
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/pipe/DrawImage.java Fri Nov 28 10:42:03 2014 +0000
@@ -364,8 +364,53 @@
int sx1, int sy1, int sx2, int sy2,
Color bgColor)
{
+ final AffineTransform itx;
+ try {
+ itx = tx.createInverse();
+ } catch (final NoninvertibleTransformException ignored) {
+ // Non-invertible transform means no output
+ return;
+ }
+
+ /*
+ * Find the maximum bounds on the destination that will be
+ * affected by the transformed source. First, transform all
+ * four corners of the source and then min and max the resulting
+ * destination coordinates of the transformed corners.
+ * Note that tx already has the offset to sx1,sy1 accounted
+ * for so we use the box (0, 0, sx2-sx1, sy2-sy1) as the
+ * source coordinates.
+ */
+ final double[] coords = new double[8];
+ /* corner: UL UR LL LR */
+ /* index: 0 1 2 3 4 5 6 7 */
+ /* coord: (0, 0), (w, 0), (0, h), (w, h) */
+ coords[2] = coords[6] = sx2 - sx1;
+ coords[5] = coords[7] = sy2 - sy1;
+ tx.transform(coords, 0, coords, 0, 4);
+ double ddx1, ddy1, ddx2, ddy2;
+ ddx1 = ddx2 = coords[0];
+ ddy1 = ddy2 = coords[1];
+ for (int i = 2; i < coords.length; i += 2) {
+ double d = coords[i];
+ if (ddx1 > d) ddx1 = d;
+ else if (ddx2 < d) ddx2 = d;
+ d = coords[i+1];
+ if (ddy1 > d) ddy1 = d;
+ else if (ddy2 < d) ddy2 = d;
+ }
+
Region clip = sg.getCompClip();
- SurfaceData dstData = sg.surfaceData;
+ final int dx1 = Math.max((int) Math.floor(ddx1), clip.lox);
+ final int dy1 = Math.max((int) Math.floor(ddy1), clip.loy);
+ final int dx2 = Math.min((int) Math.ceil(ddx2), clip.hix);
+ final int dy2 = Math.min((int) Math.ceil(ddy2), clip.hiy);
+ if (dx2 <= dx1 || dy2 <= dy1) {
+ // empty destination means no output
+ return;
+ }
+
+ final SurfaceData dstData = sg.surfaceData;
SurfaceData srcData = dstData.getSourceSurfaceData(img,
SunGraphics2D.TRANSFORM_GENERIC,
sg.imageComp,
@@ -429,56 +474,13 @@
// assert(helper != null);
}
- AffineTransform itx;
- try {
- itx = tx.createInverse();
- } catch (NoninvertibleTransformException e) {
- // Non-invertible transform means no output
- return;
- }
-
- /*
- * Find the maximum bounds on the destination that will be
- * affected by the transformed source. First, transform all
- * four corners of the source and then min and max the resulting
- * destination coordinates of the transformed corners.
- * Note that tx already has the offset to sx1,sy1 accounted
- * for so we use the box (0, 0, sx2-sx1, sy2-sy1) as the
- * source coordinates.
- */
- double coords[] = new double[8];
- /* corner: UL UR LL LR */
- /* index: 0 1 2 3 4 5 6 7 */
- /* coord: (0, 0), (w, 0), (0, h), (w, h) */
- coords[2] = coords[6] = sx2 - sx1;
- coords[5] = coords[7] = sy2 - sy1;
- tx.transform(coords, 0, coords, 0, 4);
- double ddx1, ddy1, ddx2, ddy2;
- ddx1 = ddx2 = coords[0];
- ddy1 = ddy2 = coords[1];
- for (int i = 2; i < coords.length; i += 2) {
- double d = coords[i];
- if (ddx1 > d) ddx1 = d;
- else if (ddx2 < d) ddx2 = d;
- d = coords[i+1];
- if (ddy1 > d) ddy1 = d;
- else if (ddy2 < d) ddy2 = d;
- }
- int dx1 = (int) Math.floor(ddx1);
- int dy1 = (int) Math.floor(ddy1);
- int dx2 = (int) Math.ceil(ddx2);
- int dy2 = (int) Math.ceil(ddy2);
-
SurfaceType dstType = dstData.getSurfaceType();
- MaskBlit maskblit;
- Blit blit;
if (sg.compositeState <= SunGraphics2D.COMP_ALPHA) {
/* NOTE: We either have, or we can make,
* a MaskBlit for any alpha composite type
*/
- maskblit = MaskBlit.getFromCache(SurfaceType.IntArgbPre,
- sg.imageComp,
- dstType);
+ MaskBlit maskblit = MaskBlit.getFromCache(SurfaceType.IntArgbPre,
+ sg.imageComp, dstType);
/* NOTE: We can only use the native TransformHelper
* func to go directly to the dest if both the helper
@@ -496,27 +498,19 @@
null, 0, 0);
return;
}
- blit = null;
- } else {
- /* NOTE: We either have, or we can make,
- * a Blit for any composite type, even Custom
- */
- maskblit = null;
- blit = Blit.getFromCache(SurfaceType.IntArgbPre,
- sg.imageComp,
- dstType);
}
// We need to transform to a temp image and then copy
// just the pieces that are valid data to the dest.
- BufferedImage tmpimg = new BufferedImage(dx2-dx1, dy2-dy1,
+ final int w = dx2 - dx1;
+ final int h = dy2 - dy1;
+ BufferedImage tmpimg = new BufferedImage(w, h,
BufferedImage.TYPE_INT_ARGB_PRE);
SurfaceData tmpData = SurfaceData.getPrimarySurfaceData(tmpimg);
SurfaceType tmpType = tmpData.getSurfaceType();
- MaskBlit tmpmaskblit =
- MaskBlit.getFromCache(SurfaceType.IntArgbPre,
- CompositeType.SrcNoEa,
- tmpType);
+ MaskBlit tmpmaskblit = MaskBlit.getFromCache(SurfaceType.IntArgbPre,
+ CompositeType.SrcNoEa,
+ tmpType);
/*
* The helper function fills a temporary edges buffer
* for us with the bounding coordinates of each scanline
@@ -531,7 +525,7 @@
*
* edges thus has to be h*2+2 in length
*/
- int edges[] = new int[(dy2-dy1)*2+2];
+ final int[] edges = new int[h * 2 + 2];
// It is important that edges[0]=edges[1]=0 when we call
// Transform in case it must return early and we would
// not want to render anything on an error condition.
@@ -539,35 +533,17 @@
AlphaComposite.Src, null,
itx, interpType,
sx1, sy1, sx2, sy2,
- 0, 0, dx2-dx1, dy2-dy1,
+ 0, 0, w, h,
edges, dx1, dy1);
- /*
- * Now copy the results, scanline by scanline, into the dest.
- * The edges array helps us minimize the work.
+ final Region region = Region.getInstance(dx1, dy1, dx2, dy2, edges);
+ clip = clip.getIntersection(region);
+
+ /* NOTE: We either have, or we can make,
+ * a Blit for any composite type, even Custom
*/
- int index = 2;
- for (int y = edges[0]; y < edges[1]; y++) {
- int relx1 = edges[index++];
- int relx2 = edges[index++];
- if (relx1 >= relx2) {
- continue;
- }
- if (maskblit != null) {
- maskblit.MaskBlit(tmpData, dstData,
- sg.composite, clip,
- relx1, y,
- dx1+relx1, dy1+y,
- relx2 - relx1, 1,
- null, 0, 0);
- } else {
- blit.Blit(tmpData, dstData,
- sg.composite, clip,
- relx1, y,
- dx1+relx1, dy1+y,
- relx2 - relx1, 1);
- }
- }
+ final Blit blit = Blit.getFromCache(tmpType, sg.imageComp, dstType);
+ blit.Blit(tmpData, dstData, sg.composite, clip, 0, 0, dx1, dy1, w, h);
}
// Render an image using only integer translation
--- a/jdk/src/java.desktop/share/classes/sun/java2d/pipe/Region.java Thu Nov 27 14:27:46 2014 +0300
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/pipe/Region.java Fri Nov 28 10:42:03 2014 +0000
@@ -30,6 +30,8 @@
import java.awt.geom.AffineTransform;
import java.awt.geom.RectangularShape;
+import sun.java2d.loops.TransformHelper;
+
/**
* This class encapsulates a definition of a two dimensional region which
* consists of a number of Y ranges each containing multiple X bands.
@@ -160,6 +162,15 @@
this.hiy = hiy;
}
+ private Region(int lox, int loy, int hix, int hiy, int[] bands, int end) {
+ this.lox = lox;
+ this.loy = loy;
+ this.hix = hix;
+ this.hiy = hiy;
+ this.bands = bands;
+ this.endIndex = end;
+ }
+
/**
* Returns a Region object covering the pixels which would be
* touched by a fill or clip operation on a Graphics implementation
@@ -256,6 +267,44 @@
}
/**
+ * Returns a Region object with a rectangle of interest specified by the
+ * indicated rectangular area in lox, loy, hix, hiy and edges array, which
+ * is located relative to the rectangular area. Edges array - 0,1 are y
+ * range, 2N,2N+1 are x ranges, 1 per y range.
+ *
+ * @see TransformHelper
+ */
+ static Region getInstance(final int lox, final int loy, final int hix,
+ final int hiy, final int[] edges) {
+ final int y1 = edges[0];
+ final int y2 = edges[1];
+ if (hiy <= loy || hix <= lox || y2 <= y1) {
+ return EMPTY_REGION;
+ }
+ // rowsNum * (3 + 1 * 2)
+ final int[] bands = new int[(y2 - y1) * 5];
+ int end = 0;
+ int index = 2;
+ for (int y = y1; y < y2; ++y) {
+ final int spanlox = Math.max(clipAdd(lox, edges[index++]), lox);
+ final int spanhix = Math.min(clipAdd(lox, edges[index++]), hix);
+ if (spanlox < spanhix) {
+ final int spanloy = Math.max(clipAdd(loy, y), loy);
+ final int spanhiy = Math.min(clipAdd(spanloy, 1), hiy);
+ if (spanloy < spanhiy) {
+ bands[end++] = spanloy;
+ bands[end++] = spanhiy;
+ bands[end++] = 1; // 1 span per row
+ bands[end++] = spanlox;
+ bands[end++] = spanhix;
+ }
+ }
+ }
+ return end != 0 ? new Region(lox, loy, hix, hiy, bands, end)
+ : EMPTY_REGION;
+ }
+
+ /**
* Returns a Region object with a rectangle of interest specified
* by the indicated Rectangle object.
* <p>
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/image/DrawImage/IncorrectUnmanagedImageRotatedClip.java Fri Nov 28 10:42:03 2014 +0000
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.Rectangle;
+import java.awt.image.BufferedImage;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.DataBufferInt;
+import java.awt.image.DataBufferShort;
+import java.awt.image.VolatileImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import static java.awt.Transparency.TRANSLUCENT;
+import static java.awt.image.BufferedImage.TYPE_INT_ARGB;
+
+/**
+ * @test
+ * @bug 8059942
+ * @summary Tests rotated clip when unmanaged image is drawn to VI.
+ * Results of the blit to compatibleImage are used for comparison.
+ * @author Sergey Bylokhov
+ */
+public final class IncorrectUnmanagedImageRotatedClip {
+
+ public static void main(final String[] args) throws IOException {
+ BufferedImage bi = makeUnmanagedBI();
+ fill(bi);
+ test(bi);
+ }
+
+ private static void test(final BufferedImage bi) throws IOException {
+ GraphicsEnvironment ge = GraphicsEnvironment
+ .getLocalGraphicsEnvironment();
+ GraphicsConfiguration gc = ge.getDefaultScreenDevice()
+ .getDefaultConfiguration();
+ VolatileImage vi = gc.createCompatibleVolatileImage(500, 200,
+ TRANSLUCENT);
+ BufferedImage gold = gc.createCompatibleImage(500, 200, TRANSLUCENT);
+ // draw to compatible Image
+ draw(bi, gold);
+ // draw to volatile image
+ int attempt = 0;
+ BufferedImage snapshot;
+ while (true) {
+ if (++attempt > 10) {
+ throw new RuntimeException("Too many attempts: " + attempt);
+ }
+ vi.validate(gc);
+ if (vi.validate(gc) != VolatileImage.IMAGE_OK) {
+ continue;
+ }
+ draw(bi, vi);
+ snapshot = vi.getSnapshot();
+ if (vi.contentsLost()) {
+ continue;
+ }
+ break;
+ }
+ // validate images
+ for (int x = 0; x < gold.getWidth(); ++x) {
+ for (int y = 0; y < gold.getHeight(); ++y) {
+ if (gold.getRGB(x, y) != snapshot.getRGB(x, y)) {
+ ImageIO.write(gold, "png", new File("gold.png"));
+ ImageIO.write(snapshot, "png", new File("bi.png"));
+ throw new RuntimeException("Test failed.");
+ }
+ }
+ }
+ }
+
+ private static void draw(final BufferedImage from,final Image to) {
+ final Graphics2D g2d = (Graphics2D) to.getGraphics();
+ g2d.setComposite(AlphaComposite.Src);
+ g2d.setColor(Color.ORANGE);
+ g2d.fillRect(0, 0, to.getWidth(null), to.getHeight(null));
+ g2d.rotate(Math.toRadians(45));
+ g2d.clip(new Rectangle(41, 42, 43, 44));
+ g2d.drawImage(from, 50, 50, Color.blue, null);
+ g2d.dispose();
+ }
+
+ private static BufferedImage makeUnmanagedBI() {
+ final BufferedImage bi = new BufferedImage(500, 200, TYPE_INT_ARGB);
+ final DataBuffer db = bi.getRaster().getDataBuffer();
+ if (db instanceof DataBufferInt) {
+ ((DataBufferInt) db).getData();
+ } else if (db instanceof DataBufferShort) {
+ ((DataBufferShort) db).getData();
+ } else if (db instanceof DataBufferByte) {
+ ((DataBufferByte) db).getData();
+ } else {
+ try {
+ bi.setAccelerationPriority(0.0f);
+ } catch (final Throwable ignored) {
+ }
+ }
+ return bi;
+ }
+
+ private static void fill(final Image image) {
+ final Graphics2D graphics = (Graphics2D) image.getGraphics();
+ graphics.setComposite(AlphaComposite.Src);
+ for (int i = 0; i < image.getHeight(null); ++i) {
+ graphics.setColor(new Color(i, 0, 0));
+ graphics.fillRect(0, i, image.getWidth(null), 1);
+ }
+ graphics.dispose();
+ }
+}