1 /* 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.scenario.effect.impl.prism; 27 28 import com.sun.javafx.geom.Rectangle; 29 import com.sun.javafx.geom.transform.BaseTransform; 30 import com.sun.prism.Graphics; 31 import com.sun.prism.Texture; 32 import com.sun.scenario.effect.Effect; 33 import com.sun.scenario.effect.FilterContext; 34 import com.sun.scenario.effect.ImageData; 35 import com.sun.scenario.effect.Reflection; 36 import com.sun.scenario.effect.impl.EffectPeer; 37 import com.sun.scenario.effect.impl.Renderer; 38 import com.sun.scenario.effect.impl.state.RenderState; 39 40 public class PrReflectionPeer extends EffectPeer { 41 42 public PrReflectionPeer(FilterContext fctx, Renderer r, String uniqueName) { 43 super(fctx, r, uniqueName); 44 } 45 46 @Override 47 public ImageData filter(Effect effect, 48 RenderState rstate, 49 BaseTransform transform, 50 Rectangle outputClip, 51 ImageData... inputs) 52 { 53 FilterContext fctx = getFilterContext(); 54 Reflection reflect = (Reflection)effect; 55 56 Rectangle inputbounds = inputs[0].getUntransformedBounds(); 57 int srcW = inputbounds.width; 58 int srcH = inputbounds.height; 59 float refY = srcH + reflect.getTopOffset(); 60 float refH = reflect.getFraction() * srcH; 61 int irefY1 = (int) Math.floor(refY); 62 int irefY2 = (int) Math.ceil(refY + refH); 63 int irefH = irefY2 - irefY1; 64 65 int dstH = (irefY2 > srcH) ? irefY2 : srcH; 66 // RT-27389: take clipping into account... 67 PrDrawable dst = (PrDrawable)getRenderer().getCompatibleImage(srcW, dstH); 68 if (!inputs[0].validate(fctx) || dst == null) { 69 return new ImageData(fctx, null, inputbounds); 70 } 71 PrDrawable src = (PrDrawable)inputs[0].getUntransformedImage(); 72 Texture srctex = src.getTextureObject(); 73 74 Graphics gdst = dst.createGraphics(); 75 gdst.transform(inputs[0].getTransform()); 76 float sx1 = 0f; 77 float sy1 = srcH-irefH; 78 float sx2 = srcW; 79 float sy2 = srcH; 80 gdst.drawTextureVO(srctex, 81 reflect.getBottomOpacity(), 82 reflect.getTopOpacity(), 83 0, irefY2, srcW, irefY1, 84 sx1, sy1, sx2, sy2); 85 gdst.drawTexture(srctex, 0, 0, srcW, srcH); 86 87 Rectangle newbounds = 88 new Rectangle(inputbounds.x, inputbounds.y, srcW, dstH); 89 return new ImageData(fctx, dst, newbounds); 90 } 91 }