| /* |
| * Copyright (c) 2007, 2011, 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.opengl; |
| |
| import java.awt.image.AffineTransformOp; |
| import java.awt.image.BufferedImage; |
| import java.awt.image.BufferedImageOp; |
| import java.awt.image.ConvolveOp; |
| import java.awt.image.LookupOp; |
| import java.awt.image.RescaleOp; |
| import sun.java2d.SunGraphics2D; |
| import sun.java2d.SurfaceData; |
| import sun.java2d.loops.CompositeType; |
| import sun.java2d.pipe.BufferedBufImgOps; |
| import static sun.java2d.opengl.OGLContext.OGLContextCaps.*; |
| |
| class OGLBufImgOps extends BufferedBufImgOps { |
| |
| /** |
| * This method is called from OGLDrawImage.transformImage() only. It |
| * validates the provided BufferedImageOp to determine whether the op |
| * is one that can be accelerated by the OGL pipeline. If the operation |
| * cannot be completed for any reason, this method returns false; |
| * otherwise, the given BufferedImage is rendered to the destination |
| * using the provided BufferedImageOp and this method returns true. |
| */ |
| static boolean renderImageWithOp(SunGraphics2D sg, BufferedImage img, |
| BufferedImageOp biop, int x, int y) |
| { |
| // Validate the provided BufferedImage (make sure it is one that |
| // is supported, and that its properties are acceleratable) |
| if (biop instanceof ConvolveOp) { |
| if (!isConvolveOpValid((ConvolveOp)biop)) { |
| return false; |
| } |
| } else if (biop instanceof RescaleOp) { |
| if (!isRescaleOpValid((RescaleOp)biop, img)) { |
| return false; |
| } |
| } else if (biop instanceof LookupOp) { |
| if (!isLookupOpValid((LookupOp)biop, img)) { |
| return false; |
| } |
| } else { |
| // No acceleration for other BufferedImageOps (yet) |
| return false; |
| } |
| |
| SurfaceData dstData = sg.surfaceData; |
| if (!(dstData instanceof OGLSurfaceData) || |
| (sg.interpolationType == AffineTransformOp.TYPE_BICUBIC) || |
| (sg.compositeState > SunGraphics2D.COMP_ALPHA)) |
| { |
| return false; |
| } |
| |
| SurfaceData srcData = |
| dstData.getSourceSurfaceData(img, SunGraphics2D.TRANSFORM_ISIDENT, |
| CompositeType.SrcOver, null); |
| if (!(srcData instanceof OGLSurfaceData)) { |
| // REMIND: this hack tries to ensure that we have a cached texture |
| srcData = |
| dstData.getSourceSurfaceData(img, SunGraphics2D.TRANSFORM_ISIDENT, |
| CompositeType.SrcOver, null); |
| if (!(srcData instanceof OGLSurfaceData)) { |
| return false; |
| } |
| } |
| |
| // Verify that the source surface is actually a texture and |
| // that the operation is supported |
| OGLSurfaceData oglSrc = (OGLSurfaceData)srcData; |
| OGLGraphicsConfig gc = oglSrc.getOGLGraphicsConfig(); |
| if (oglSrc.getType() != OGLSurfaceData.TEXTURE || |
| !gc.isCapPresent(CAPS_EXT_BIOP_SHADER)) |
| { |
| return false; |
| } |
| |
| int sw = img.getWidth(); |
| int sh = img.getHeight(); |
| OGLBlitLoops.IsoBlit(srcData, dstData, |
| img, biop, |
| sg.composite, sg.getCompClip(), |
| sg.transform, sg.interpolationType, |
| 0, 0, sw, sh, |
| x, y, x+sw, y+sh, |
| true); |
| |
| return true; |
| } |
| } |