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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 | } | ||