1 /*
   2  * Copyright (c) 2019, 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.metal;
  27 
  28 import sun.java2d.SunGraphics2D;
  29 import sun.java2d.SurfaceData;
  30 import sun.java2d.loops.SurfaceType;
  31 import sun.java2d.loops.TransformBlit;
  32 import sun.java2d.pipe.DrawImage;
  33 
  34 import java.awt.*;
  35 import java.awt.geom.AffineTransform;
  36 import java.awt.image.AffineTransformOp;
  37 import java.awt.image.BufferedImage;
  38 import java.awt.image.BufferedImageOp;
  39 
  40 public class MTLDrawImage extends DrawImage {
  41 
  42     @Override
  43     protected void renderImageXform(SunGraphics2D sg, Image img,
  44                                     AffineTransform tx, int interpType,
  45                                     int sx1, int sy1, int sx2, int sy2,
  46                                     Color bgColor)
  47     {
  48         // punt to the MediaLib-based transformImage() in the superclass if:
  49         //     - bicubic interpolation is specified
  50         //     - a background color is specified and will be used
  51         //     - the source surface is neither a texture nor render-to-texture
  52         //       surface, and a non-default interpolation hint is specified
  53         //       (we can only control the filtering for texture->surface
  54         //       copies)
  55         //         REMIND: we should tweak the sw->texture->surface
  56         //         transform case to handle filtering appropriately
  57         //         (see 4841762)...
  58         //     - an appropriate TransformBlit primitive could not be found
  59         if (interpType != AffineTransformOp.TYPE_BICUBIC) {
  60             SurfaceData dstData = sg.surfaceData;
  61             SurfaceData srcData =
  62                 dstData.getSourceSurfaceData(img,
  63                                              SunGraphics2D.TRANSFORM_GENERIC,
  64                                              sg.imageComp,
  65                                              bgColor);
  66 
  67             if (srcData != null &&
  68                 !isBgOperation(srcData, bgColor) &&
  69                 (srcData.getSurfaceType() == MTLSurfaceDataBase.MTLTexture ||
  70                  srcData.getSurfaceType() == MTLSurfaceDataBase.MTLSurfaceRTT ||
  71                  interpType == AffineTransformOp.TYPE_NEAREST_NEIGHBOR))
  72             {
  73                 SurfaceType srcType = srcData.getSurfaceType();
  74                 SurfaceType dstType = dstData.getSurfaceType();
  75                 TransformBlit blit = TransformBlit.getFromCache(srcType,
  76                                                                 sg.imageComp,
  77                                                                 dstType);
  78 
  79                 if (blit != null) {
  80                     blit.Transform(srcData, dstData,
  81                                    sg.composite, sg.getCompClip(),
  82                                    tx, interpType,
  83                                    sx1, sy1, 0, 0, sx2-sx1, sy2-sy1);
  84                     return;
  85                 }
  86             }
  87         }
  88 
  89         super.renderImageXform(sg, img, tx, interpType,
  90                                sx1, sy1, sx2, sy2, bgColor);
  91     }
  92 
  93     @Override
  94     public void transformImage(SunGraphics2D sg, BufferedImage img,
  95                                BufferedImageOp op, int x, int y)
  96     {
  97         if (op != null) {
  98             if (op instanceof AffineTransformOp) {
  99                 AffineTransformOp atop = (AffineTransformOp) op;
 100                 transformImage(sg, img, x, y,
 101                                atop.getTransform(),
 102                                atop.getInterpolationType());
 103                 return;
 104             } else {
 105                 if (MTLBufImgOps.renderImageWithOp(sg, img, op, x, y)) {
 106                     return;
 107                 }
 108             }
 109             img = op.filter(img, null);
 110         }
 111         copyImage(sg, img, x, y, null);
 112     }
 113 }