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| 1 | +/* | |
| 2 | + * Copyright (c) 2007, 2008, 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 sun.java2d.opengl; | |
| 27 | + | |
| 28 | +import java.awt.image.AffineTransformOp; | |
| 29 | +import java.awt.image.BufferedImage; | |
| 30 | +import java.awt.image.BufferedImageOp; | |
| 31 | +import java.awt.image.ConvolveOp; | |
| 32 | +import java.awt.image.LookupOp; | |
| 33 | +import java.awt.image.RescaleOp; | |
| 34 | +import sun.java2d.SunGraphics2D; | |
| 35 | +import sun.java2d.SurfaceData; | |
| 36 | +import sun.java2d.loops.CompositeType; | |
| 37 | +import sun.java2d.pipe.BufferedBufImgOps; | |
| 38 | +import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; | |
| 39 | + | |
| 40 | +class OGLBufImgOps extends BufferedBufImgOps { | |
| 41 | + | |
| 42 | + /** | |
| 43 | + * This method is called from OGLDrawImage.transformImage() only. It | |
| 44 | + * validates the provided BufferedImageOp to determine whether the op | |
| 45 | + * is one that can be accelerated by the OGL pipeline. If the operation | |
| 46 | + * cannot be completed for any reason, this method returns false; | |
| 47 | + * otherwise, the given BufferedImage is rendered to the destination | |
| 48 | + * using the provided BufferedImageOp and this method returns true. | |
| 49 | + */ | |
| 50 | + static boolean renderImageWithOp(SunGraphics2D sg, BufferedImage img, | |
| 51 | + BufferedImageOp biop, int x, int y) | |
| 52 | + { | |
| 53 | + // Validate the provided BufferedImage (make sure it is one that | |
| 54 | + // is supported, and that its properties are acceleratable) | |
| 55 | + if (biop instanceof ConvolveOp) { | |
| 56 | + if (!isConvolveOpValid((ConvolveOp)biop)) { | |
| 57 | + return false; | |
| 58 | + } | |
| 59 | + } else if (biop instanceof RescaleOp) { | |
| 60 | + if (!isRescaleOpValid((RescaleOp)biop, img)) { | |
| 61 | + return false; | |
| 62 | + } | |
| 63 | + } else if (biop instanceof LookupOp) { | |
| 64 | + if (!isLookupOpValid((LookupOp)biop, img)) { | |
| 65 | + return false; | |
| 66 | + } | |
| 67 | + } else { | |
| 68 | + // No acceleration for other BufferedImageOps (yet) | |
| 69 | + return false; | |
| 70 | + } | |
| 71 | + | |
| 72 | + SurfaceData dstData = sg.surfaceData; | |
| 73 | + if (!(dstData instanceof OGLSurfaceData) || | |
| 74 | + (sg.interpolationType == AffineTransformOp.TYPE_BICUBIC) || | |
| 75 | + (sg.compositeState > SunGraphics2D.COMP_ALPHA)) | |
| 76 | + { | |
| 77 | + return false; | |
| 78 | + } | |
| 79 | + | |
| 80 | + SurfaceData srcData = | |
| 81 | + dstData.getSourceSurfaceData(img, sg.TRANSFORM_ISIDENT, | |
| 82 | + CompositeType.SrcOver, null); | |
| 83 | + if (!(srcData instanceof OGLSurfaceData)) { | |
| 84 | + // REMIND: this hack tries to ensure that we have a cached texture | |
| 85 | + srcData = | |
| 86 | + dstData.getSourceSurfaceData(img, sg.TRANSFORM_ISIDENT, | |
| 87 | + CompositeType.SrcOver, null); | |
| 88 | + if (!(srcData instanceof OGLSurfaceData)) { | |
| 89 | + return false; | |
| 90 | + } | |
| 91 | + } | |
| 92 | + | |
| 93 | + // Verify that the source surface is actually a texture and | |
| 94 | + // that the operation is supported | |
| 95 | + OGLSurfaceData oglSrc = (OGLSurfaceData)srcData; | |
| 96 | + OGLGraphicsConfig gc = oglSrc.getOGLGraphicsConfig(); | |
| 97 | + if (oglSrc.getType() != OGLSurfaceData.TEXTURE || | |
| 98 | + !gc.isCapPresent(CAPS_EXT_BIOP_SHADER)) | |
| 99 | + { | |
| 100 | + return false; | |
| 101 | + } | |
| 102 | + | |
| 103 | + int sw = img.getWidth(); | |
| 104 | + int sh = img.getHeight(); | |
| 105 | + OGLBlitLoops.IsoBlit(srcData, dstData, | |
| 106 | + img, biop, | |
| 107 | + sg.composite, sg.getCompClip(), | |
| 108 | + sg.transform, sg.interpolationType, | |
| 109 | + 0, 0, sw, sh, | |
| 110 | + x, y, x+sw, y+sh, | |
| 111 | + true); | |
| 112 | + | |
| 113 | + return true; | |
| 114 | + } | |
| 115 | +} | |