--- /dev/null 2017-05-09 09:58:57.635126128 +0200 +++ new/src/java.desktop/share/classes/sun/java2d/marlin/DTransformingPathConsumer2D.java 2017-05-09 10:56:16.819279956 +0200 @@ -0,0 +1,277 @@ +/* + * Copyright (c) 2007, 2017, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +package sun.java2d.marlin; + +import java.awt.geom.AffineTransform; +import java.awt.geom.Path2D; + +final class DTransformingPathConsumer2D { + + DTransformingPathConsumer2D() { + // used by DRendererContext + } + + // recycled DPathConsumer2D instance from wrapPath2d() + private final Path2DWrapper wp_Path2DWrapper = new Path2DWrapper(); + + DPathConsumer2D wrapPath2d(Path2D.Double p2d) + { + return wp_Path2DWrapper.init(p2d); + } + + // recycled DPathConsumer2D instances from deltaTransformConsumer() + private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter(); + private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter(); + + DPathConsumer2D deltaTransformConsumer(DPathConsumer2D out, + AffineTransform at) + { + if (at == null) { + return out; + } + double mxx = at.getScaleX(); + double mxy = at.getShearX(); + double myx = at.getShearY(); + double myy = at.getScaleY(); + + if (mxy == 0.0d && myx == 0.0d) { + if (mxx == 1.0d && myy == 1.0d) { + return out; + } else { + return dt_DeltaScaleFilter.init(out, mxx, myy); + } + } else { + return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy); + } + } + + // recycled DPathConsumer2D instances from inverseDeltaTransformConsumer() + private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter(); + private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter(); + + DPathConsumer2D inverseDeltaTransformConsumer(DPathConsumer2D out, + AffineTransform at) + { + if (at == null) { + return out; + } + double mxx = at.getScaleX(); + double mxy = at.getShearX(); + double myx = at.getShearY(); + double myy = at.getScaleY(); + + if (mxy == 0.0d && myx == 0.0d) { + if (mxx == 1.0d && myy == 1.0d) { + return out; + } else { + return iv_DeltaScaleFilter.init(out, 1.0d/mxx, 1.0d/myy); + } + } else { + double det = mxx * myy - mxy * myx; + return iv_DeltaTransformFilter.init(out, + myy / det, + -mxy / det, + -myx / det, + mxx / det); + } + } + + + static final class DeltaScaleFilter implements DPathConsumer2D { + private DPathConsumer2D out; + private double sx, sy; + + DeltaScaleFilter() {} + + DeltaScaleFilter init(DPathConsumer2D out, + double mxx, double myy) + { + this.out = out; + sx = mxx; + sy = myy; + return this; // fluent API + } + + @Override + public void moveTo(double x0, double y0) { + out.moveTo(x0 * sx, y0 * sy); + } + + @Override + public void lineTo(double x1, double y1) { + out.lineTo(x1 * sx, y1 * sy); + } + + @Override + public void quadTo(double x1, double y1, + double x2, double y2) + { + out.quadTo(x1 * sx, y1 * sy, + x2 * sx, y2 * sy); + } + + @Override + public void curveTo(double x1, double y1, + double x2, double y2, + double x3, double y3) + { + out.curveTo(x1 * sx, y1 * sy, + x2 * sx, y2 * sy, + x3 * sx, y3 * sy); + } + + @Override + public void closePath() { + out.closePath(); + } + + @Override + public void pathDone() { + out.pathDone(); + } + + @Override + public long getNativeConsumer() { + return 0; + } + } + + static final class DeltaTransformFilter implements DPathConsumer2D { + private DPathConsumer2D out; + private double mxx, mxy, myx, myy; + + DeltaTransformFilter() {} + + DeltaTransformFilter init(DPathConsumer2D out, + double mxx, double mxy, + double myx, double myy) + { + this.out = out; + this.mxx = mxx; + this.mxy = mxy; + this.myx = myx; + this.myy = myy; + return this; // fluent API + } + + @Override + public void moveTo(double x0, double y0) { + out.moveTo(x0 * mxx + y0 * mxy, + x0 * myx + y0 * myy); + } + + @Override + public void lineTo(double x1, double y1) { + out.lineTo(x1 * mxx + y1 * mxy, + x1 * myx + y1 * myy); + } + + @Override + public void quadTo(double x1, double y1, + double x2, double y2) + { + out.quadTo(x1 * mxx + y1 * mxy, + x1 * myx + y1 * myy, + x2 * mxx + y2 * mxy, + x2 * myx + y2 * myy); + } + + @Override + public void curveTo(double x1, double y1, + double x2, double y2, + double x3, double y3) + { + out.curveTo(x1 * mxx + y1 * mxy, + x1 * myx + y1 * myy, + x2 * mxx + y2 * mxy, + x2 * myx + y2 * myy, + x3 * mxx + y3 * mxy, + x3 * myx + y3 * myy); + } + + @Override + public void closePath() { + out.closePath(); + } + + @Override + public void pathDone() { + out.pathDone(); + } + + @Override + public long getNativeConsumer() { + return 0; + } + } + + static final class Path2DWrapper implements DPathConsumer2D { + private Path2D.Double p2d; + + Path2DWrapper() {} + + Path2DWrapper init(Path2D.Double p2d) { + this.p2d = p2d; + return this; + } + + @Override + public void moveTo(double x0, double y0) { + p2d.moveTo(x0, y0); + } + + @Override + public void lineTo(double x1, double y1) { + p2d.lineTo(x1, y1); + } + + @Override + public void closePath() { + p2d.closePath(); + } + + @Override + public void pathDone() {} + + @Override + public void curveTo(double x1, double y1, + double x2, double y2, + double x3, double y3) + { + p2d.curveTo(x1, y1, x2, y2, x3, y3); + } + + @Override + public void quadTo(double x1, double y1, double x2, double y2) { + p2d.quadTo(x1, y1, x2, y2); + } + + @Override + public long getNativeConsumer() { + throw new InternalError("Not using a native peer"); + } + } +}