1 /*
2 * Copyright (c) 2010, 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.xr;
27
28 import java.awt.*;
29 import java.awt.MultipleGradientPaint.*;
30 import java.awt.geom.*;
31 import java.awt.image.*;
32 import sun.java2d.*;
33 import sun.java2d.loops.*;
34 import sun.java2d.xr.XRSurfaceData.XRInternalSurfaceData;
35
36 abstract class XRPaints {
37 static XRCompositeManager xrCompMan;
38
39 static final XRGradient xrGradient = new XRGradient();
40 static final XRLinearGradient xrLinearGradient = new XRLinearGradient();
41 static final XRRadialGradient xrRadialGradient = new XRRadialGradient();
42 static final XRTexture xrTexture = new XRTexture();
43
44 public static void register(XRCompositeManager xrComp) {
45 xrCompMan = xrComp;
46 }
47
48 private static XRPaints getXRPaint(SunGraphics2D sg2d) {
49 switch (sg2d.paintState) {
50 case SunGraphics2D.PAINT_GRADIENT:
51 return xrGradient;
52
53 case SunGraphics2D.PAINT_LIN_GRADIENT:
54 return xrLinearGradient;
55
56 case SunGraphics2D.PAINT_RAD_GRADIENT:
57 return xrRadialGradient;
58
59 case SunGraphics2D.PAINT_TEXTURE:
60 return xrTexture;
61
62 default:
63 return null;
64 }
65 }
66
67 /**
68 * Attempts to locate an implementation corresponding to the paint state of
69 * the provided SunGraphics2D object. If no implementation can be found, or
70 * if the paint cannot be accelerated under the conditions of the
71 * SunGraphics2D, this method returns false; otherwise, returns true.
72 */
73 static boolean isValid(SunGraphics2D sg2d) {
74 XRPaints impl = getXRPaint(sg2d);
75 return (impl != null && impl.isPaintValid(sg2d));
76 }
77
78 static void setPaint(SunGraphics2D sg2d, Paint paint) {
79 XRPaints impl = getXRPaint(sg2d);
80 if (impl != null) {
81 impl.setXRPaint(sg2d, paint);
82 }
83 }
84
85 /**
86 * Returns true if this implementation is able to accelerate the Paint
87 * object associated with, and under the conditions of, the provided
88 * SunGraphics2D instance; otherwise returns false.
89 */
90 abstract boolean isPaintValid(SunGraphics2D sg2d);
91
92 abstract void setXRPaint(SunGraphics2D sg2d, Paint paint);
93
94 private static class XRGradient extends XRPaints {
95 private XRGradient() {
96 }
97
98 /**
99 * There are no restrictions for accelerating GradientPaint, so this
100 * method always returns true.
101 */
102 @Override
103 boolean isPaintValid(SunGraphics2D sg2d) {
104 return true;
105 }
106
107 void setXRPaint(SunGraphics2D sg2d, Paint pt) {
108 GradientPaint paint = (GradientPaint) pt;
109
110 int repeat = paint.isCyclic() ? XRUtils.RepeatReflect : XRUtils.RepeatPad;
111 float fractions[] = {0, 1};
112 int[] pixels = convertToIntArgbPixels(new Color[] { paint.getColor1(), paint.getColor2() });
113
114 Point2D pt1 = paint.getPoint1();
115 Point2D pt2 = paint.getPoint2();
116
117 XRBackend con = xrCompMan.getBackend();
118 int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat);
119 xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient));
120 }
121 }
122
123 public int getGradientLength(Point2D pt1, Point2D pt2) {
124 double xDiff = Math.max(pt1.getX(), pt2.getX()) - Math.min(pt1.getX(), pt2.getX());
125 double yDiff = Math.max(pt1.getY(), pt2.getY()) - Math.min(pt1.getY(), pt2.getY());
126 return (int) Math.ceil(Math.sqrt(xDiff*xDiff + yDiff*yDiff));
127 }
128
129 private static class XRLinearGradient extends XRPaints {
130
131 @Override
132 boolean isPaintValid(SunGraphics2D sg2d) {
133 return ((LinearGradientPaint) sg2d.getPaint()).getColorSpace() == ColorSpaceType.SRGB;
134 }
135
136 @Override
137 void setXRPaint(SunGraphics2D sg2d, Paint pt) {
138 LinearGradientPaint paint = (LinearGradientPaint) pt;
139
140 Color[] colors = paint.getColors();
141 Point2D pt1 = paint.getStartPoint();
142 Point2D pt2 = paint.getEndPoint();
143
144 int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod());
145 float[] fractions = paint.getFractions();
146 int[] pixels = convertToIntArgbPixels(colors);
147
148 AffineTransform at = paint.getTransform();
149 try {
150 at.invert();
151 } catch (NoninvertibleTransformException ex) {
152 ex.printStackTrace();
153 }
154
155 XRBackend con = xrCompMan.getBackend();
156 int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat);
157 XRInternalSurfaceData x11sd = new XRSurfaceData.XRInternalSurfaceData(con, gradient);
158 x11sd.setStaticSrcTx(at);
159 xrCompMan.setGradientPaint(x11sd);
160 }
161 }
162
163 private static class XRRadialGradient extends XRPaints {
164
165 @Override
166 boolean isPaintValid(SunGraphics2D sg2d) {
167 RadialGradientPaint grad = (RadialGradientPaint) sg2d.paint;
168 return grad.getFocusPoint().equals(grad.getCenterPoint())
169 && grad.getColorSpace() == ColorSpaceType.SRGB;
170 }
171
172 @Override
173 void setXRPaint(SunGraphics2D sg2d, Paint pt) {
174 RadialGradientPaint paint = (RadialGradientPaint) pt;
175 Color[] colors = paint.getColors();
176 Point2D center = paint.getCenterPoint();
177
178 int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod());
179 float[] fractions = paint.getFractions();
180 int[] pixels = convertToIntArgbPixels(colors);
181 float radius = paint.getRadius();
182
183 float cx = (float) center.getX();
184 float cy = (float) center.getY();
185
186 AffineTransform at = paint.getTransform();
187 try {
188 at.invert();
189 } catch (NoninvertibleTransformException ex) {
190 ex.printStackTrace();
191 }
192
193 XRBackend con = xrCompMan.getBackend();
194 int gradient = con.createRadialGradient(cx, cy, 0, radius, fractions, pixels, repeat);
195 XRInternalSurfaceData x11sd = new XRSurfaceData.XRInternalSurfaceData(con, gradient);
196 x11sd.setStaticSrcTx(at);
197 xrCompMan.setGradientPaint(x11sd);
198 }
199 }
200
201 private static class XRTexture extends XRPaints {
202
203 private XRSurfaceData getAccSrcSurface(XRSurfaceData dstData, BufferedImage bi) {
204 // REMIND: this is a hack that attempts to cache the system
205 // memory image from the TexturePaint instance into an
206 // XRender pixmap...
207 SurfaceData srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
208 if (!(srcData instanceof XRSurfaceData)) {
209 srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null);
210 if (!(srcData instanceof XRSurfaceData)) {
211 throw new InternalError("Surface not cachable");
212 }
213 }
214
215 return (XRSurfaceData) srcData;
216 }
217
218 @Override
219 boolean isPaintValid(SunGraphics2D sg2d) {
220 TexturePaint paint = (TexturePaint) sg2d.paint;
221 BufferedImage bi = paint.getImage();
222 XRSurfaceData dstData = (XRSurfaceData) sg2d.getDestSurface();
223
224 return getAccSrcSurface(dstData, bi) != null;
225 }
226
227 @Override
228 void setXRPaint(SunGraphics2D sg2d, Paint pt) {
229 TexturePaint paint = (TexturePaint) pt;
230 BufferedImage bi = paint.getImage();
231 Rectangle2D anchor = paint.getAnchorRect();
232
233 XRSurfaceData dstData = (XRSurfaceData) sg2d.surfaceData;
234 XRSurfaceData srcData = (XRSurfaceData) getAccSrcSurface(dstData, bi);
235
236 AffineTransform at = new AffineTransform();
237 at.translate(anchor.getX(), anchor.getY());
238 at.scale(anchor.getWidth() / ((double) bi.getWidth()), anchor.getHeight() / ((double) bi.getHeight()));
239
240 try {
241 at.invert();
242 } catch (NoninvertibleTransformException ex) {
243 at.setToIdentity();
244 }
245 srcData.setStaticSrcTx(at);
246
247 srcData.validateAsSource(at, XRUtils.RepeatNormal, XRUtils.ATransOpToXRQuality(sg2d.interpolationType));
248 xrCompMan.setTexturePaint(srcData);
249 }
250 }
251
252 public int[] convertToIntArgbPixels(Color[] colors) {
253 int[] pixels = new int[colors.length];
254 for (int i = 0; i < colors.length; i++) {
255 pixels[i] = colorToIntArgbPixel(colors[i]);
256 }
257 return pixels;
258 }
259
260 public int colorToIntArgbPixel(Color c) {
261 int rgb = c.getRGB();
262 int a = (int) Math.round(xrCompMan.getExtraAlpha() * (rgb >>> 24));
263 return ((a << 24) | (rgb & 0x00FFFFFF));
264 }
265 }