--- /dev/null 2019-06-14 14:38:06.000000000 +0530 +++ new/src/java.desktop/macosx/classes/sun/java2d/metal/MTLBufImgOps.java 2019-06-14 14:38:05.000000000 +0530 @@ -0,0 +1,112 @@ +/* + * Copyright (c) 2019, 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.metal; + +import sun.java2d.SunGraphics2D; +import sun.java2d.SurfaceData; +import sun.java2d.loops.CompositeType; +import sun.java2d.pipe.BufferedBufImgOps; + +import java.awt.image.*; + +import static sun.java2d.metal.MTLContext.MTLContextCaps.CAPS_EXT_BIOP_SHADER; + +class MTLBufImgOps extends BufferedBufImgOps { + + /** + * This method is called from MTLDrawImage.transformImage() only. It + * validates the provided BufferedImageOp to determine whether the op + * is one that can be accelerated by the MTL 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 MTLSurfaceData) || + (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 MTLSurfaceData)) { + // 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 MTLSurfaceData)) { + return false; + } + } + + // Verify that the source surface is actually a texture and + // that the operation is supported + MTLSurfaceData mtlSrc = (MTLSurfaceData)srcData; + MTLGraphicsConfig gc = mtlSrc.getMTLGraphicsConfig(); + if (mtlSrc.getType() != MTLSurfaceData.TEXTURE || + !gc.isCapPresent(CAPS_EXT_BIOP_SHADER)) + { + return false; + } + + int sw = img.getWidth(); + int sh = img.getHeight(); + MTLBlitLoops.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; + } +}