115 lines · 4.6 KB · Java
RawDownload
/* * Copyright (c) 2007, 2008, 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, sg.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, sg.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;    }}