1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.uirendering.cts.testclasses; 18 19 import android.graphics.BlendMode; 20 import android.graphics.Canvas; 21 import android.graphics.Color; 22 import android.graphics.ColorSpace; 23 import android.graphics.Paint; 24 import android.graphics.Path; 25 import android.graphics.Picture; 26 import android.graphics.PorterDuff; 27 import android.graphics.Rect; 28 import android.graphics.drawable.NinePatchDrawable; 29 import android.uirendering.cts.R; 30 import android.uirendering.cts.bitmapcomparers.BitmapComparer; 31 import android.uirendering.cts.bitmapcomparers.ExactComparer; 32 import android.uirendering.cts.bitmapcomparers.MSSIMComparer; 33 import android.uirendering.cts.bitmapverifiers.BitmapVerifier; 34 import android.uirendering.cts.bitmapverifiers.GoldenImageVerifier; 35 import android.uirendering.cts.bitmapverifiers.PerPixelBitmapVerifier; 36 import android.uirendering.cts.bitmapverifiers.RectVerifier; 37 import android.uirendering.cts.testinfrastructure.ActivityTestBase; 38 import android.uirendering.cts.util.CompareUtils; 39 40 import androidx.test.filters.MediumTest; 41 import androidx.test.runner.AndroidJUnit4; 42 43 import org.junit.Test; 44 import org.junit.runner.RunWith; 45 46 @MediumTest 47 @RunWith(AndroidJUnit4.class) 48 public class ExactCanvasTests extends ActivityTestBase { 49 private final BitmapComparer mExactComparer = new ExactComparer(); 50 51 @Test testBlueRect()52 public void testBlueRect() { 53 final Rect rect = new Rect(10, 10, 80, 80); 54 createTest() 55 .addCanvasClient((canvas, width, height) -> { 56 Paint p = new Paint(); 57 p.setAntiAlias(false); 58 p.setColor(Color.BLUE); 59 canvas.drawRect(rect, p); 60 }) 61 .runWithVerifier(new RectVerifier(Color.WHITE, Color.BLUE, rect)); 62 } 63 64 @Test testPoints()65 public void testPoints() { 66 createTest() 67 .addCanvasClient((canvas, width, height) -> { 68 Paint p = new Paint(); 69 p.setAntiAlias(false); 70 p.setStrokeWidth(1f); 71 p.setColor(Color.BLACK); 72 for (int i = 0; i < 10; i++) { 73 canvas.drawPoint(i * 10, i * 10, p); 74 } 75 }) 76 .runWithComparer(mExactComparer); 77 } 78 79 @Test testBlackRectWithStroke()80 public void testBlackRectWithStroke() { 81 createTest() 82 .addCanvasClient((canvas, width, height) -> { 83 Paint p = new Paint(); 84 p.setColor(Color.RED); 85 canvas.drawRect(0, 0, ActivityTestBase.TEST_WIDTH, 86 ActivityTestBase.TEST_HEIGHT, p); 87 p.setColor(Color.BLACK); 88 p.setStrokeWidth(5); 89 canvas.drawRect(10, 10, 80, 80, p); 90 }) 91 .runWithComparer(mExactComparer); 92 } 93 94 @Test testBlackLineOnGreenBack()95 public void testBlackLineOnGreenBack() { 96 createTest() 97 .addCanvasClient((canvas, width, height) -> { 98 canvas.drawColor(Color.GREEN); 99 Paint p = new Paint(); 100 p.setColor(Color.BLACK); 101 p.setStrokeWidth(10); 102 canvas.drawLine(0, 0, 50, 0, p); 103 }) 104 .runWithComparer(mExactComparer); 105 } 106 107 @Test testDrawRedRectOnBlueBack()108 public void testDrawRedRectOnBlueBack() { 109 createTest() 110 .addCanvasClient((canvas, width, height) -> { 111 canvas.drawColor(Color.BLUE); 112 Paint p = new Paint(); 113 p.setColor(Color.RED); 114 canvas.drawRect(10, 10, 40, 40, p); 115 }) 116 .runWithComparer(mExactComparer); 117 } 118 119 @Test testDrawLine()120 public void testDrawLine() { 121 createTest() 122 .addCanvasClient((canvas, width, height) -> { 123 Paint p = new Paint(); 124 canvas.drawColor(Color.WHITE); 125 p.setColor(Color.BLACK); 126 p.setAntiAlias(false); 127 float[] pts = { 128 0, 0, 80, 80, 80, 0, 0, 80, 40, 50, 60, 50 129 }; 130 canvas.drawLines(pts, p); 131 }) 132 .runWithComparer(mExactComparer); 133 } 134 135 @Test testDrawWhiteScreen()136 public void testDrawWhiteScreen() { 137 createTest() 138 .addCanvasClient((canvas, width, height) -> canvas.drawColor(Color.WHITE)) 139 .runWithComparer(mExactComparer); 140 } 141 142 @Test testBasicText()143 public void testBasicText() { 144 final String testString = "THIS IS A TEST"; 145 createTest() 146 .addCanvasClient((canvas, width, height) -> { 147 Paint p = new Paint(); 148 canvas.drawColor(Color.BLACK); 149 p.setColor(Color.WHITE); 150 p.setStrokeWidth(5); 151 canvas.drawText(testString, 30, 50, p); 152 }) 153 .runWithComparer(mExactComparer); 154 } 155 drawTestTextOnPath(Canvas canvas)156 private void drawTestTextOnPath(Canvas canvas) { 157 final String testString = "THIS IS A TEST ON A CIRCLE PATH"; 158 Path path = new Path(); 159 path.addCircle(45, 45, 30, Path.Direction.CW); 160 Paint p = new Paint(); 161 p.setColor(Color.BLACK); 162 p.setAntiAlias(true); 163 canvas.drawTextOnPath(testString, path, 0f, 0f, p); 164 } 165 166 @Test testTextOnPath()167 public void testTextOnPath() { 168 createTest() 169 .addCanvasClient((canvas, width, height) -> { 170 drawTestTextOnPath(canvas); 171 }) 172 .runWithVerifier(new GoldenImageVerifier(getActivity(), 173 // HWUI's texts are blurry, so we lower the threshold. 174 // Note that 0.7 will fail the test. 175 R.drawable.text_on_path, new MSSIMComparer(0.6))); 176 } 177 178 @Test testTextOnPathUsingPicture()179 public void testTextOnPathUsingPicture() { 180 createTest() 181 .addCanvasClient((canvas, width, height) -> { 182 Picture picture = new Picture(); 183 Canvas pictureCanvas = picture.beginRecording(90, 90); 184 drawTestTextOnPath(pictureCanvas); 185 picture.endRecording(); 186 picture.draw(canvas); 187 }) 188 .runWithVerifier(new GoldenImageVerifier(getActivity(), 189 // HWUI's texts are blurry, so we lower the threshold. 190 // Note that 0.7 will fail the test. 191 R.drawable.text_on_path, new MSSIMComparer(0.6))); 192 } 193 194 @Test testBasicColorXfermode()195 public void testBasicColorXfermode() { 196 createTest() 197 .addCanvasClient((canvas, width, height) -> { 198 canvas.drawColor(Color.GRAY); 199 canvas.drawColor(Color.BLUE, PorterDuff.Mode.MULTIPLY); 200 }) 201 .runWithComparer(mExactComparer); 202 } 203 204 @Test testBasicColorBlendMode()205 public void testBasicColorBlendMode() { 206 createTest().addCanvasClient((canvas, width, height) -> { 207 canvas.drawColor(Color.GRAY); 208 canvas.drawColor(Color.BLUE, BlendMode.MULTIPLY); 209 }).runWithComparer(mExactComparer); 210 } 211 212 @Test testBluePaddedSquare()213 public void testBluePaddedSquare() { 214 final NinePatchDrawable ninePatchDrawable = (NinePatchDrawable) 215 getActivity().getResources().getDrawable(R.drawable.blue_padded_square); 216 ninePatchDrawable.setBounds(0, 0, 90, 90); 217 218 BitmapVerifier verifier = new RectVerifier(Color.WHITE, Color.BLUE, 219 new Rect(10, 10, 80, 80)); 220 221 createTest() 222 .addCanvasClient((canvas, width, height) -> { 223 canvas.drawColor(Color.WHITE); 224 Paint p = new Paint(); 225 p.setColor(Color.BLUE); 226 canvas.drawRect(10, 10, 80, 80, p); 227 }) 228 .addCanvasClient( 229 (canvas, width, height) -> ninePatchDrawable.draw(canvas)) 230 .addLayout(R.layout.blue_padded_square, null) 231 .runWithVerifier(verifier); 232 } 233 234 @Test testEmptyLayer()235 public void testEmptyLayer() { 236 createTest() 237 .addCanvasClient((canvas, width, height) -> { 238 canvas.drawColor(Color.CYAN); 239 Paint p = new Paint(); 240 p.setColor(Color.BLACK); 241 canvas.saveLayer(10, 10, 80, 80, p); 242 canvas.restore(); 243 }) 244 .runWithComparer(mExactComparer); 245 } 246 247 @Test testSaveLayerRounding()248 public void testSaveLayerRounding() { 249 createTest() 250 .addCanvasClient((canvas, width, height) -> { 251 canvas.saveLayerAlpha(10.5f, 10.5f, 79.5f, 79.5f, 255); 252 canvas.drawRect(20, 20, 70, 70, new Paint()); 253 canvas.restore(); 254 }) 255 .runWithVerifier(new RectVerifier(Color.WHITE, Color.BLACK, 256 new Rect(20, 20, 70, 70))); 257 } 258 259 @Test testUnclippedSaveLayerRounding()260 public void testUnclippedSaveLayerRounding() { 261 createTest() 262 .addCanvasClient((canvas, width, height) -> { 263 canvas.saveLayerAlpha(10.5f, 10.5f, 79.5f, 79.5f, 255); 264 canvas.drawRect(20, 20, 70, 70, new Paint()); 265 canvas.restore(); 266 }) 267 .runWithVerifier(new RectVerifier(Color.WHITE, Color.BLACK, 268 new Rect(20, 20, 70, 70))); 269 } 270 271 @Test testBlackTriangleVertices()272 public void testBlackTriangleVertices() { 273 createTest() 274 .addCanvasClient((canvas, width, height) -> { 275 float[] vertices = new float[6]; 276 vertices[0] = width / 2.0f; 277 vertices[1] = 0; 278 vertices[2] = width; 279 vertices[3] = height; 280 vertices[4] = 0; 281 vertices[5] = height; 282 int[] colors = new int[] { Color.BLACK, Color.BLACK, Color.BLACK }; 283 canvas.drawVertices(Canvas.VertexMode.TRIANGLES, vertices.length, vertices, 0, 284 null, 0, colors, 0, null, 0, 0, 285 new Paint()); 286 }) 287 .runWithComparer(mExactComparer); 288 } 289 290 @Test testBlackTriangleVertices2()291 public void testBlackTriangleVertices2() { 292 BitmapVerifier verifier = new PerPixelBitmapVerifier() { 293 @Override 294 protected boolean verifyPixel(int x, int y, int observedColor) { 295 // The CanvasClient will draw the following black triangle on a white 296 // background: 297 // (40, 0) 298 // 299 // 300 // 301 // 302 // (0, 80) (80, 0) 303 if (y >= 80) { 304 // Below the triangle is white. 305 return CompareUtils.verifyPixelWithThreshold(observedColor, Color.WHITE, 0); 306 } else if (x < 40) { 307 // The line on the left is 308 // y = -2x + 80 309 // Above is white, below is black. Give some leeway for 310 // antialiasing. 311 if (y < -2 * x + 80 - 1) { 312 return CompareUtils.verifyPixelWithThreshold(observedColor, Color.WHITE, 0); 313 } else if (y > -2 * x + 80 + 1) { 314 return CompareUtils.verifyPixelWithThreshold(observedColor, Color.BLACK, 0); 315 } 316 } else { 317 // The line on the right is 318 // y = 2x - 80 319 // Above is white, below is black. Give some leeway for 320 // antialiasing. 321 if (y < 2 * x - 80 - 1) { 322 return CompareUtils.verifyPixelWithThreshold(observedColor, Color.WHITE, 0); 323 } else if (y > 2 * x - 80 + 1) { 324 return CompareUtils.verifyPixelWithThreshold(observedColor, Color.BLACK, 0); 325 } 326 } 327 // Ignore points very close to the line. 328 return true; 329 } 330 }; 331 332 createTest() 333 .addCanvasClient((canvas, width, height) -> { 334 canvas.drawColor(Color.WHITE); 335 336 float[] vertices = new float[6]; 337 vertices[0] = 40; 338 vertices[1] = 0; 339 vertices[2] = 80; 340 vertices[3] = 80; 341 vertices[4] = 0; 342 vertices[5] = 80; 343 int[] colors = new int[] { Color.BLACK, Color.BLACK, Color.BLACK }; 344 canvas.drawVertices(Canvas.VertexMode.TRIANGLES, vertices.length, vertices, 0, 345 null, 0, colors, 0, null, 0, 0, 346 new Paint()); 347 }) 348 .runWithVerifier(verifier); 349 } 350 351 @Test testColorLongs()352 public void testColorLongs() { 353 createTest() 354 .addCanvasClient((canvas, width, height) -> { 355 canvas.drawColor(Color.pack(0.5f, 0.3f, 0.1f, 1.0f, 356 ColorSpace.get(ColorSpace.Named.DISPLAY_P3))); 357 canvas.drawColor(Color.pack(0.2f, 0.2f, 0.2f, 1.0f, 358 ColorSpace.get(ColorSpace.Named.DISPLAY_P3)), BlendMode.PLUS); 359 Paint p = new Paint(); 360 p.setColor(Color.pack(0.7f, 0.9f, 0.4f, 1.0f, 361 ColorSpace.get(ColorSpace.Named.DISPLAY_P3))); 362 canvas.drawRect(20, 20, 70, 70, p); 363 }) 364 .runWithComparer(mExactComparer); 365 } 366 } 367