1 /*
2 * Copyright (c) 2000, 2018, 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 sun.java2d.loops.GraphicsPrimitive;
29 import sun.java2d.pipe.Region;
30 import sun.java2d.SunGraphics2D;
31 import sun.java2d.SurfaceData;
32 import sun.font.GlyphList;
33
34 /**
35 * DrawGlyphListAA - loops for AATextRenderer pipe
36 * 1) draw anti-aliased text onto destination surface
37 * 2) must accept output area [x, y, dx, dy]
38 * from within the surface description data for clip rect
39 */
40 public class DrawGlyphListAA extends GraphicsPrimitive {
41
42 public static final String methodSignature = "DrawGlyphListAA(...)".toString();
43
44 public static final int primTypeID = makePrimTypeID();
45
46 public static DrawGlyphListAA locate(SurfaceType srctype,
47 CompositeType comptype,
48 SurfaceType dsttype)
49 {
50 return (DrawGlyphListAA)
51 GraphicsPrimitiveMgr.locate(primTypeID,
52 srctype, comptype, dsttype);
53 }
54
55 protected DrawGlyphListAA(SurfaceType srctype,
56 CompositeType comptype,
57 SurfaceType dsttype)
58 {
59 super(methodSignature, primTypeID, srctype, comptype, dsttype);
60 }
61
62 public DrawGlyphListAA(long pNativePrim,
63 SurfaceType srctype,
64 CompositeType comptype,
65 SurfaceType dsttype)
66 {
67 super(pNativePrim, methodSignature, primTypeID, srctype, comptype, dsttype);
68 }
69
70 public native void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
71 GlyphList srcData);
72
73 static {
74 GraphicsPrimitiveMgr.registerGeneral(
75 new DrawGlyphListAA(null, null, null));
76 }
77
78 public GraphicsPrimitive makePrimitive(SurfaceType srctype,
79 CompositeType comptype,
80 SurfaceType dsttype) {
81 return new General(srctype, comptype, dsttype);
82 }
83
84 public static class General extends DrawGlyphListAA {
85 MaskFill maskop;
86
87 public General(SurfaceType srctype,
88 CompositeType comptype,
89 SurfaceType dsttype)
90 {
91 super(srctype, comptype, dsttype);
92 maskop = MaskFill.locate(srctype, comptype, dsttype);
93 }
94
95 public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
96 GlyphList gl)
97 {
98 gl.getBounds(); // Don't delete, bug 4895493
99 int num = gl.getNumGlyphs();
100 Region clip = sg2d.getCompClip();
101 int cx1 = clip.getLoX();
102 int cy1 = clip.getLoY();
103 int cx2 = clip.getHiX();
104 int cy2 = clip.getHiY();
105 for (int i = 0; i < num; i++) {
106 gl.setGlyphIndex(i);
107 int[] metrics = gl.getMetrics();
108 int gx1 = metrics[0];
109 int gy1 = metrics[1];
110 int w = metrics[2];
111 int gx2 = gx1 + w;
112 int gy2 = gy1 + metrics[3];
113 int off = 0;
114 if (gx1 < cx1) {
115 off = cx1 - gx1;
116 gx1 = cx1;
117 }
118 if (gy1 < cy1) {
119 off += (cy1 - gy1) * w;
120 gy1 = cy1;
121 }
122 if (gx2 > cx2) gx2 = cx2;
123 if (gy2 > cy2) gy2 = cy2;
124 if (gx2 > gx1 && gy2 > gy1) {
125 byte[] alpha = gl.getGrayBits();
126 maskop.MaskFill(sg2d, dest, sg2d.composite,
127 gx1, gy1, gx2 - gx1, gy2 - gy1,
128 alpha, off, w);
129 }
130 }
131 }
132 }
133
134 public GraphicsPrimitive traceWrap() {
135 return new TraceDrawGlyphListAA(this);
136 }
137
138 private static class TraceDrawGlyphListAA extends DrawGlyphListAA {
139 DrawGlyphListAA target;
140
141 public TraceDrawGlyphListAA(DrawGlyphListAA target) {
142 super(target.getSourceType(),
143 target.getCompositeType(),
144 target.getDestType());
145 this.target = target;
146 }
147
148 public GraphicsPrimitive traceWrap() {
149 return this;
150 }
151
152 public void DrawGlyphListAA(SunGraphics2D sg2d, SurfaceData dest,
153 GlyphList glyphs)
154 {
155 tracePrimitive(target);
156 target.DrawGlyphListAA(sg2d, dest, glyphs);
157 }
158 }
159 }