1 /* |
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2 * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /* |
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25 * @test |
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26 * @key headful |
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27 * @bug 6521533 6525997 7102282 |
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28 * @summary Verifies that the OGL-accelerated codepaths for GradientPaint, |
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29 * LinearGradientPaint, and RadialGradientPaint produce results that are |
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30 * sufficiently close to those produced by the software codepaths. |
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31 * @run main/othervm -Dsun.java2d.uiScale=1 -Dsun.java2d.opengl=True GradientPaints |
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32 * @author campbelc |
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33 */ |
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34 |
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35 import java.awt.*; |
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36 import java.awt.MultipleGradientPaint.ColorSpaceType; |
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37 import java.awt.MultipleGradientPaint.CycleMethod; |
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38 import java.awt.geom.*; |
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39 import java.awt.image.*; |
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40 import java.io.File; |
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41 import java.util.Arrays; |
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42 import javax.imageio.ImageIO; |
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43 |
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44 public class GradientPaints extends Canvas { |
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45 |
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46 private static final int TESTW = 600; |
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47 private static final int TESTH = 500; |
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48 |
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49 /* |
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50 * We expect slight differences in rendering between the OpenGL and |
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51 * software pipelines due to algorithmic and rounding differences. |
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52 * The purpose of this test is just to make sure that the OGL pipeline |
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53 * is producing results that are "reasonably" consistent with those |
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54 * produced in software, so we will allow +/-TOLERANCE differences |
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55 * in each component. When comparing the test and reference images, |
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56 * we add up the number of pixels that fall outside this tolerance |
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57 * range and if the sum is larger than some percentage of the total |
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58 * number of pixels. |
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59 * |
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60 * REMIND: Note that we have separate thresholds for linear and radial |
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61 * gradients because the visible differences between OGL and software |
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62 * are more apparent in the radial cases. In the future we should try |
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63 * to reduce the number of mismatches between the two approaches, but |
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64 * for now the visible differences are slight enough to not cause worry. |
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65 */ |
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66 private static final int TOLERANCE = 5; |
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67 private static final int ALLOWED_MISMATCHES_LINEAR = |
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68 (int)(TESTW * TESTH * 0.18); |
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69 private static final int ALLOWED_MISMATCHES_RADIAL = |
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70 (int)(TESTW * TESTH * 0.45); |
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71 |
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72 private static boolean done; |
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73 private static boolean verbose; |
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74 |
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75 private static final Color[] COLORS = { |
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76 new Color(0, 0, 0), |
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77 new Color(128, 128, 128), |
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78 new Color(255, 0, 0), |
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79 new Color(255, 255, 0), |
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80 new Color(0, 255, 0), |
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81 new Color(0, 255, 255), |
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82 new Color(128, 0, 255), |
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83 new Color(128, 128, 128), |
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84 }; |
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85 |
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86 private static enum PaintType {BASIC, LINEAR, RADIAL}; |
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87 private static enum XformType {IDENTITY, TRANSLATE, SCALE, SHEAR, ROTATE}; |
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88 private static final int[] numStopsArray = {2, 4, 7}; |
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89 private static final Object[] hints = { |
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90 RenderingHints.VALUE_ANTIALIAS_OFF, |
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91 RenderingHints.VALUE_ANTIALIAS_ON, |
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92 }; |
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93 |
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94 public void paint(Graphics g) { |
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95 synchronized (this) { |
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96 if (!done) { |
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97 done = true; |
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98 notifyAll(); |
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99 } |
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100 } |
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101 } |
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102 |
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103 private void testOne(BufferedImage refImg, VolatileImage testImg) { |
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104 Graphics2D gref = refImg.createGraphics(); |
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105 Graphics2D gtest = testImg.createGraphics(); |
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106 Paint paint = |
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107 makePaint(PaintType.RADIAL, CycleMethod.REPEAT, |
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108 ColorSpaceType.SRGB, XformType.IDENTITY, 7); |
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109 Object aahint = hints[0]; |
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110 renderTest(gref, paint, aahint); |
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111 renderTest(gtest, paint, aahint); |
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112 Toolkit.getDefaultToolkit().sync(); |
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113 compareImages(refImg, testImg.getSnapshot(), |
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114 TOLERANCE, 0, ""); |
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115 gref.dispose(); |
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116 gtest.dispose(); |
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117 } |
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118 |
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119 private void testAll(Graphics gscreen, |
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120 BufferedImage refImg, VolatileImage testImg) |
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121 { |
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122 Graphics2D gref = refImg.createGraphics(); |
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123 Graphics2D gtest = testImg.createGraphics(); |
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124 for (PaintType paintType : PaintType.values()) { |
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125 for (CycleMethod cycleMethod : CycleMethod.values()) { |
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126 for (ColorSpaceType colorSpace : ColorSpaceType.values()) { |
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127 for (XformType xform : XformType.values()) { |
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128 for (Object aahint : hints) { |
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129 for (int numStops : numStopsArray) { |
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130 Paint paint = |
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131 makePaint(paintType, cycleMethod, |
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132 colorSpace, xform, numStops); |
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133 String msg = |
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134 "type=" + paintType + |
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135 " cycleMethod=" + cycleMethod + |
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136 " colorSpace=" + colorSpace + |
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137 " xformType=" + xform + |
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138 " numStops=" + numStops + |
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139 " aa=" + aahint; |
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140 renderTest(gref, paint, aahint); |
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141 renderTest(gtest, paint, aahint); |
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142 gscreen.drawImage(testImg, 0, 0, null); |
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143 Toolkit.getDefaultToolkit().sync(); |
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144 int allowedMismatches = |
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145 paintType == PaintType.RADIAL ? |
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146 ALLOWED_MISMATCHES_RADIAL : |
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147 ALLOWED_MISMATCHES_LINEAR; |
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148 compareImages(refImg, testImg.getSnapshot(), |
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149 TOLERANCE, allowedMismatches, |
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150 msg); |
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151 } |
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152 } |
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153 } |
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154 } |
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155 } |
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156 } |
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157 gref.dispose(); |
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158 gtest.dispose(); |
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159 } |
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160 |
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161 private Paint makePaint(PaintType paintType, |
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162 CycleMethod cycleMethod, |
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163 ColorSpaceType colorSpace, |
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164 XformType xformType, int numStops) |
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165 { |
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166 int startX = TESTW/6; |
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167 int startY = TESTH/6; |
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168 int endX = TESTW/2; |
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169 int endY = TESTH/2; |
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170 int ctrX = TESTW/2; |
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171 int ctrY = TESTH/2; |
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172 int focusX = ctrX + 20; |
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173 int focusY = ctrY + 20; |
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174 float radius = 100.0f; |
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175 Paint paint; |
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176 AffineTransform transform; |
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177 |
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178 Color[] colors = Arrays.copyOf(COLORS, numStops); |
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179 float[] fractions = new float[colors.length]; |
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180 for (int i = 0; i < fractions.length; i++) { |
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181 fractions[i] = ((float)i) / (fractions.length-1); |
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182 } |
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183 |
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184 switch (xformType) { |
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185 default: |
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186 case IDENTITY: |
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187 transform = new AffineTransform(); |
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188 break; |
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189 case TRANSLATE: |
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190 transform = AffineTransform.getTranslateInstance(2, 2); |
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191 break; |
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192 case SCALE: |
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193 transform = AffineTransform.getScaleInstance(1.2, 1.4); |
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194 break; |
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195 case SHEAR: |
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196 transform = AffineTransform.getShearInstance(0.1, 0.1); |
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197 break; |
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198 case ROTATE: |
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199 transform = AffineTransform.getRotateInstance(Math.PI / 4, |
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200 getWidth()/2, |
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201 getHeight()/2); |
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202 break; |
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203 } |
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204 |
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205 switch (paintType) { |
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206 case BASIC: |
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207 boolean cyclic = (cycleMethod != CycleMethod.NO_CYCLE); |
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208 paint = |
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209 new GradientPaint(startX, startY, Color.RED, |
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210 endX, endY, Color.BLUE, cyclic); |
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211 break; |
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212 |
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213 default: |
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214 case LINEAR: |
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215 paint = |
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216 new LinearGradientPaint(new Point2D.Float(startX, startY), |
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217 new Point2D.Float(endX, endY), |
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218 fractions, colors, |
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219 cycleMethod, colorSpace, |
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220 transform); |
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221 break; |
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222 |
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223 case RADIAL: |
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224 paint = |
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225 new RadialGradientPaint(new Point2D.Float(ctrX, ctrY), |
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226 radius, |
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227 new Point2D.Float(focusX, focusY), |
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228 fractions, colors, |
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229 cycleMethod, colorSpace, |
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230 transform); |
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231 break; |
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232 } |
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233 |
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234 return paint; |
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235 } |
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236 |
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237 private void renderTest(Graphics2D g2d, Paint p, Object aahint) { |
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238 g2d.setColor(Color.white); |
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239 g2d.fillRect(0, 0, TESTW, TESTH); |
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240 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, aahint); |
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241 g2d.setPaint(p); |
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242 g2d.fillOval(0, 0, TESTW, TESTH); |
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243 } |
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244 |
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245 public Dimension getPreferredSize() { |
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246 return new Dimension(TESTW, TESTH); |
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247 } |
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248 |
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249 private static void compareImages(BufferedImage refImg, |
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250 BufferedImage testImg, |
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251 int tolerance, int allowedMismatches, |
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252 String msg) |
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253 { |
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254 int numMismatches = 0; |
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255 int x1 = 0; |
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256 int y1 = 0; |
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257 int x2 = refImg.getWidth(); |
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258 int y2 = refImg.getHeight(); |
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259 |
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260 for (int y = y1; y < y2; y++) { |
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261 for (int x = x1; x < x2; x++) { |
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262 Color expected = new Color(refImg.getRGB(x, y)); |
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263 Color actual = new Color(testImg.getRGB(x, y)); |
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264 if (!isSameColor(expected, actual, tolerance)) { |
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265 numMismatches++; |
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266 } |
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267 } |
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268 } |
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269 |
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270 if (verbose) { |
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271 System.out.println(msg); |
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272 } |
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273 if (numMismatches > allowedMismatches) { |
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274 try { |
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275 ImageIO.write(refImg, "png", |
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276 new File("GradientPaints.ref.png")); |
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277 ImageIO.write(testImg, "png", |
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278 new File("GradientPaints.cap.png")); |
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279 } catch (Exception e) { |
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280 } |
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281 if (!verbose) { |
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282 System.err.println(msg); |
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283 } |
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284 throw new RuntimeException("Test failed: Number of mismatches (" + |
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285 numMismatches + |
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286 ") exceeds limit (" + |
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287 allowedMismatches + |
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288 ") with tolerance=" + |
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289 tolerance); |
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290 } |
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291 } |
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292 |
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293 private static boolean isSameColor(Color c1, Color c2, int e) { |
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294 int r1 = c1.getRed(); |
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295 int g1 = c1.getGreen(); |
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296 int b1 = c1.getBlue(); |
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297 int r2 = c2.getRed(); |
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298 int g2 = c2.getGreen(); |
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299 int b2 = c2.getBlue(); |
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300 int rmin = Math.max(r2-e, 0); |
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301 int gmin = Math.max(g2-e, 0); |
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302 int bmin = Math.max(b2-e, 0); |
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303 int rmax = Math.min(r2+e, 255); |
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304 int gmax = Math.min(g2+e, 255); |
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305 int bmax = Math.min(b2+e, 255); |
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306 if (r1 >= rmin && r1 <= rmax && |
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307 g1 >= gmin && g1 <= gmax && |
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308 b1 >= bmin && b1 <= bmax) |
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309 { |
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310 return true; |
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311 } |
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312 return false; |
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313 } |
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314 |
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315 public static void main(String[] args) { |
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316 if (args.length == 1 && args[0].equals("-verbose")) { |
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317 verbose = true; |
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318 } |
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319 |
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320 GradientPaints test = new GradientPaints(); |
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321 Frame frame = new Frame(); |
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322 frame.add(test); |
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323 frame.pack(); |
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324 frame.setVisible(true); |
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325 |
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326 // Wait until the component's been painted |
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327 synchronized (test) { |
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328 while (!done) { |
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329 try { |
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330 test.wait(); |
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331 } catch (InterruptedException e) { |
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332 throw new RuntimeException("Failed: Interrupted"); |
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333 } |
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334 } |
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335 } |
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336 |
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337 GraphicsConfiguration gc = frame.getGraphicsConfiguration(); |
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338 if (gc.getColorModel() instanceof IndexColorModel) { |
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339 System.out.println("IndexColorModel detected: " + |
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340 "test considered PASSED"); |
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341 frame.dispose(); |
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342 return; |
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343 } |
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344 |
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345 BufferedImage refImg = |
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346 new BufferedImage(TESTW, TESTH, BufferedImage.TYPE_INT_RGB); |
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347 VolatileImage testImg = frame.createVolatileImage(TESTW, TESTH); |
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348 testImg.validate(gc); |
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349 |
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350 try { |
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351 test.testAll(test.getGraphics(), refImg, testImg); |
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352 } finally { |
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353 frame.dispose(); |
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354 } |
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355 } |
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356 } |
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