/* * Copyright (c) 1999, 2018, 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.loops; import java.awt.Composite; import java.lang.ref.WeakReference; import sun.java2d.loops.GraphicsPrimitive; import sun.java2d.SurfaceData; import sun.java2d.pipe.Region; /** * MaskBlit * 1) copies rectangle of pixels from one surface to another * 2) performs compositing of colors based upon a Composite * parameter * 3) blends result of composite with destination using an * alpha coverage mask * 4) the mask may be null in which case it should be treated * as if it were an array of all opaque values (0xff) * * precise behavior is undefined if the source surface * and the destination surface are the same surface * with overlapping regions of pixels */ public class MaskBlit extends GraphicsPrimitive { public static final String methodSignature = "MaskBlit(...)".toString(); public static final int primTypeID = makePrimTypeID(); private static RenderCache blitcache = new RenderCache(20); public static MaskBlit locate(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { return (MaskBlit) GraphicsPrimitiveMgr.locate(primTypeID, srctype, comptype, dsttype); } public static MaskBlit getFromCache(SurfaceType src, CompositeType comp, SurfaceType dst) { Object o = blitcache.get(src, comp, dst); if (o != null) { return (MaskBlit) o; } MaskBlit blit = locate(src, comp, dst); if (blit == null) { System.out.println("mask blit loop not found for:"); System.out.println("src: "+src); System.out.println("comp: "+comp); System.out.println("dst: "+dst); } else { blitcache.put(src, comp, dst, blit); } return blit; } protected MaskBlit(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(methodSignature, primTypeID, srctype, comptype, dsttype); } public MaskBlit(long pNativePrim, SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype); } /** * All MaskBlit implementors must have this invoker method */ public native void MaskBlit(SurfaceData src, SurfaceData dst, Composite comp, Region clip, int srcx, int srcy, int dstx, int dsty, int width, int height, byte[] mask, int maskoff, int maskscan); static { GraphicsPrimitiveMgr.registerGeneral(new MaskBlit(null, null, null)); } public GraphicsPrimitive makePrimitive(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { /* new Throwable().printStackTrace(); System.out.println("Constructing general maskblit for:"); System.out.println("src: "+srctype); System.out.println("comp: "+comptype); System.out.println("dst: "+dsttype); */ if (CompositeType.Xor.equals(comptype)) { throw new InternalError("Cannot construct MaskBlit for " + "XOR mode"); } General ob = new General(srctype, comptype, dsttype); setupGeneralBinaryOp(ob); return ob; } private static class General extends MaskBlit implements GeneralBinaryOp { Blit convertsrc; Blit convertdst; MaskBlit performop; Blit convertresult; WeakReference srcTmp; WeakReference dstTmp; public General(SurfaceType srctype, CompositeType comptype, SurfaceType dsttype) { super(srctype, comptype, dsttype); } public void setPrimitives(Blit srcconverter, Blit dstconverter, GraphicsPrimitive genericop, Blit resconverter) { this.convertsrc = srcconverter; this.convertdst = dstconverter; this.performop = (MaskBlit) genericop; this.convertresult = resconverter; } public synchronized void MaskBlit(SurfaceData srcData, SurfaceData dstData, Composite comp, Region clip, int srcx, int srcy, int dstx, int dsty, int width, int height, byte[] mask, int offset, int scan) { SurfaceData src, dst; Region opclip; int sx, sy, dx, dy; if (convertsrc == null) { src = srcData; sx = srcx; sy = srcy; } else { SurfaceData cachedSrc = null; if (srcTmp != null) { cachedSrc = srcTmp.get(); } src = convertFrom(convertsrc, srcData, srcx, srcy, width, height, cachedSrc); sx = 0; sy = 0; if (src != cachedSrc) { srcTmp = new WeakReference<>(src); } } if (convertdst == null) { dst = dstData; dx = dstx; dy = dsty; opclip = clip; } else { // assert: convertresult != null SurfaceData cachedDst = null; if (dstTmp != null) { cachedDst = dstTmp.get(); } dst = convertFrom(convertdst, dstData, dstx, dsty, width, height, cachedDst); dx = 0; dy = 0; opclip = null; if (dst != cachedDst) { dstTmp = new WeakReference<>(dst); } } performop.MaskBlit(src, dst, comp, opclip, sx, sy, dx, dy, width, height, mask, offset, scan); if (convertresult != null) { // assert: convertdst != null convertTo(convertresult, dst, dstData, clip, dstx, dsty, width, height); } } } public GraphicsPrimitive traceWrap() { return new TraceMaskBlit(this); } private static class TraceMaskBlit extends MaskBlit { MaskBlit target; public TraceMaskBlit(MaskBlit target) { // We need to have the same NativePrim as our // target in case we are used with a TransformHelper super(target.getNativePrim(), target.getSourceType(), target.getCompositeType(), target.getDestType()); this.target = target; } public GraphicsPrimitive traceWrap() { return this; } public void MaskBlit(SurfaceData src, SurfaceData dst, Composite comp, Region clip, int srcx, int srcy, int dstx, int dsty, int width, int height, byte[] mask, int maskoff, int maskscan) { tracePrimitive(target); target.MaskBlit(src, dst, comp, clip, srcx, srcy, dstx, dsty, width, height, mask, maskoff, maskscan); } } }