1 /*
2 * Copyright (c) 1999, 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
26 package sun.java2d.loops;
27
28 import java.awt.Font;
29 import java.awt.Color;
30 import java.awt.Composite;
31 import java.awt.AlphaComposite;
32 import java.awt.Transparency;
33 import java.awt.image.ColorModel;
34 import java.awt.image.WritableRaster;
35 import java.awt.image.BufferedImage;
36 import sun.awt.image.BufImgSurfaceData;
37 import sun.java2d.loops.GraphicsPrimitive;
38 import sun.java2d.SurfaceData;
39 import sun.java2d.SunGraphics2D;
40 import sun.java2d.pipe.Region;
41
42 /**
43 * BlitBg
44 * 1) copies rectangle of pixels from one surface to another
45 * 2) performs compositing of colors based upon a Composite
46 * parameter
47 * 3) assumes that non-opaque pixels are to be blended with
48 * the indicated Bg color before compositing with the
49 * destination
50 *
51 * precise behavior is undefined if the source surface
52 * and the destination surface are the same surface
53 * with overlapping regions of pixels
54 */
55 public class BlitBg extends GraphicsPrimitive
56 {
57 public static final String methodSignature = "BlitBg(...)".toString();
58
59 public static final int primTypeID = makePrimTypeID();
60
61 private static RenderCache blitcache = new RenderCache(20);
62
63 public static BlitBg locate(SurfaceType srctype,
64 CompositeType comptype,
65 SurfaceType dsttype)
66 {
67 return (BlitBg)
68 GraphicsPrimitiveMgr.locate(primTypeID,
69 srctype, comptype, dsttype);
70 }
71
72 public static BlitBg getFromCache(SurfaceType src,
73 CompositeType comp,
74 SurfaceType dst)
75 {
76 Object o = blitcache.get(src, comp, dst);
77 if (o != null) {
78 return (BlitBg) o;
79 }
80 BlitBg blit = locate(src, comp, dst);
81 if (blit == null) {
82 System.out.println("blitbg loop not found for:");
83 System.out.println("src: "+src);
84 System.out.println("comp: "+comp);
85 System.out.println("dst: "+dst);
86 } else {
87 blitcache.put(src, comp, dst, blit);
88 }
89 return blit;
90 }
91
92 protected BlitBg(SurfaceType srctype,
93 CompositeType comptype,
94 SurfaceType dsttype)
95 {
96 super(methodSignature, primTypeID, srctype, comptype, dsttype);
97 }
98
99 public BlitBg(long pNativePrim,
100 SurfaceType srctype,
101 CompositeType comptype,
102 SurfaceType dsttype)
103 {
104 super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype);
105 }
106
107 /**
108 * All BlitBg implementors must have this invoker method
109 */
110 public native void BlitBg(SurfaceData src, SurfaceData dst,
111 Composite comp, Region clip,
112 int bgColor,
113 int srcx, int srcy,
114 int dstx, int dsty,
115 int width, int height);
116
117 static {
118 GraphicsPrimitiveMgr.registerGeneral(new BlitBg(null, null, null));
119 }
120
121 public GraphicsPrimitive makePrimitive(SurfaceType srctype,
122 CompositeType comptype,
123 SurfaceType dsttype)
124 {
125 /*
126 System.out.println("Constructing general blitbg for:");
127 System.out.println("src: "+srctype);
128 System.out.println("comp: "+comptype);
129 System.out.println("dst: "+dsttype);
130 */
131 return new General(srctype, comptype, dsttype);
132 }
133
134 private static class General extends BlitBg {
135 CompositeType compositeType;
136
137 public General(SurfaceType srctype,
138 CompositeType comptype,
139 SurfaceType dsttype)
140 {
141 super(srctype, comptype, dsttype);
142 compositeType = comptype;
143 }
144
145 @Override
146 public void BlitBg(SurfaceData srcData,
147 SurfaceData dstData,
148 Composite comp,
149 Region clip,
150 int bgArgb,
151 int srcx, int srcy,
152 int dstx, int dsty,
153 int width, int height)
154 {
155 ColorModel dstModel = dstData.getColorModel();
156 boolean bgHasAlpha = (bgArgb >>> 24) != 0xff;
157 if (!dstModel.hasAlpha() && bgHasAlpha) {
158 dstModel = ColorModel.getRGBdefault();
159 }
160 WritableRaster wr =
161 dstModel.createCompatibleWritableRaster(width, height);
162 boolean isPremult = dstModel.isAlphaPremultiplied();
163 BufferedImage bimg =
164 new BufferedImage(dstModel, wr, isPremult, null);
165 SurfaceData tmpData = BufImgSurfaceData.createData(bimg);
166 Color bgColor = new Color(bgArgb, bgHasAlpha);
167 SunGraphics2D sg2d = new SunGraphics2D(tmpData, bgColor, bgColor,
168 defaultFont);
169 FillRect fillop = FillRect.locate(SurfaceType.AnyColor,
170 CompositeType.SrcNoEa,
171 tmpData.getSurfaceType());
172 Blit combineop = Blit.getFromCache(srcData.getSurfaceType(),
173 CompositeType.SrcOverNoEa,
174 tmpData.getSurfaceType());
175 Blit blitop = Blit.getFromCache(tmpData.getSurfaceType(), compositeType,
176 dstData.getSurfaceType());
177 fillop.FillRect(sg2d, tmpData, 0, 0, width, height);
178 combineop.Blit(srcData, tmpData, AlphaComposite.SrcOver, null,
179 srcx, srcy, 0, 0, width, height);
180 blitop.Blit(tmpData, dstData, comp, clip,
181 0, 0, dstx, dsty, width, height);
182 }
183
184 private static Font defaultFont = new Font("Dialog", Font.PLAIN, 12);
185 }
186
187 public GraphicsPrimitive traceWrap() {
188 return new TraceBlitBg(this);
189 }
190
191 private static class TraceBlitBg extends BlitBg {
192 BlitBg target;
193
194 public TraceBlitBg(BlitBg target) {
195 super(target.getSourceType(),
196 target.getCompositeType(),
197 target.getDestType());
198 this.target = target;
199 }
200
201 public GraphicsPrimitive traceWrap() {
202 return this;
203 }
204
205 @Override
206 public void BlitBg(SurfaceData src, SurfaceData dst,
207 Composite comp, Region clip,
208 int bgColor,
209 int srcx, int srcy, int dstx, int dsty,
210 int width, int height)
211 {
212 tracePrimitive(target);
213 target.BlitBg(src, dst, comp, clip, bgColor,
214 srcx, srcy, dstx, dsty, width, height);
215 }
216 }
217 }