1/* 2 * Copyright (c) 2002, 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 26package sun.java2d.windows; 27 28import java.awt.Composite; 29import sun.java2d.loops.GraphicsPrimitive; 30import sun.java2d.loops.GraphicsPrimitiveMgr; 31import sun.java2d.loops.CompositeType; 32import sun.java2d.loops.SurfaceType; 33import sun.java2d.loops.Blit; 34import sun.java2d.pipe.Region; 35import sun.java2d.SurfaceData; 36 37/** 38 * GDIBlitLoops 39 * 40 * This class accelerates Blits between certain surfaces and the 41 * screen, using GDI. The reason for these loops is to find 42 * a way of copying to the screen without using DDraw locking 43 * that is faster than our current fallback (which creates 44 * a temporary GDI DIB) 45 */ 46public class GDIBlitLoops extends Blit { 47 48 // Store these values to be passed to native code 49 int rmask, gmask, bmask; 50 51 // Needs lookup table (for indexed color image copies) 52 boolean indexed = false; 53 54 /** 55 * Note that we do not register loops to 8-byte destinations. This 56 * is due to faster processing of dithering through our software 57 * loops than through GDI StretchBlt processing. 58 */ 59 public static void register() 60 { 61 GraphicsPrimitive[] primitives = { 62 new GDIBlitLoops(SurfaceType.IntRgb, 63 GDIWindowSurfaceData.AnyGdi), 64 new GDIBlitLoops(SurfaceType.Ushort555Rgb, 65 GDIWindowSurfaceData.AnyGdi, 66 0x7C00, 0x03E0, 0x001F), 67 new GDIBlitLoops(SurfaceType.Ushort565Rgb, 68 GDIWindowSurfaceData.AnyGdi, 69 0xF800, 0x07E0, 0x001F), 70 new GDIBlitLoops(SurfaceType.ThreeByteBgr, 71 GDIWindowSurfaceData.AnyGdi), 72 new GDIBlitLoops(SurfaceType.ByteIndexedOpaque, 73 GDIWindowSurfaceData.AnyGdi, 74 true), 75 new GDIBlitLoops(SurfaceType.Index8Gray, 76 GDIWindowSurfaceData.AnyGdi, 77 true), 78 new GDIBlitLoops(SurfaceType.ByteGray, 79 GDIWindowSurfaceData.AnyGdi), 80 }; 81 GraphicsPrimitiveMgr.register(primitives); 82 } 83 84 /** 85 * This constructor exists for srcTypes that have no need of 86 * component masks. GDI only expects masks for 2- and 4-byte 87 * DIBs, so all 1- and 3-byte srcTypes can skip the mask setting. 88 */ 89 public GDIBlitLoops(SurfaceType srcType, SurfaceType dstType) { 90 this(srcType, dstType, 0, 0, 0); 91 } 92 93 /** 94 * This constructor exists for srcTypes that need lookup tables 95 * during image copying. 96 */ 97 public GDIBlitLoops(SurfaceType srcType, SurfaceType dstType, 98 boolean indexed) 99 { 100 this(srcType, dstType, 0, 0, 0); 101 this.indexed = indexed; 102 } 103 104 /** 105 * This constructor sets mask for this primitive which can be 106 * retrieved in native code to set the appropriate values for GDI. 107 */ 108 public GDIBlitLoops(SurfaceType srcType, SurfaceType dstType, 109 int rmask, int gmask, int bmask) 110 { 111 super(srcType, CompositeType.SrcNoEa, dstType); 112 this.rmask = rmask; 113 this.gmask = gmask; 114 this.bmask = bmask; 115 } 116 117 /** 118 * nativeBlit 119 * This native method is where all of the work happens in the 120 * accelerated Blit. 121 */ 122 public native void nativeBlit(SurfaceData src, SurfaceData dst, 123 Region clip, 124 int sx, int sy, int dx, int dy, 125 int w, int h, 126 int rmask, int gmask, int bmask, 127 boolean needLut); 128 129 /** 130 * Blit 131 * This method wraps the nativeBlit call, sending in additional 132 * info on whether the native method needs to get LUT info 133 * from the source image. Note that we do not pass in the 134 * Composite data because we only register these loops for 135 * SrcNoEa composite operations. 136 */ 137 public void Blit(SurfaceData src, SurfaceData dst, 138 Composite comp, Region clip, 139 int sx, int sy, int dx, int dy, int w, int h) 140 { 141 nativeBlit(src, dst, clip, sx, sy, dx, dy, w, h, 142 rmask, gmask, bmask, indexed); 143 } 144 145 146} 147