Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 8 | #include "Sample.h" |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 9 | #include "SkAnimTimer.h" |
| 10 | #include "SkBitmapProcShader.h" |
| 11 | #include "SkCanvas.h" |
| 12 | #include "SkDrawable.h" |
| 13 | #include "SkLightingShader.h" |
| 14 | #include "SkLights.h" |
| 15 | #include "SkNormalSource.h" |
| 16 | #include "SkRandom.h" |
| 17 | #include "SkRSXform.h" |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 18 | |
| 19 | #include "sk_tool_utils.h" |
| 20 | |
| 21 | // A crude normal mapped asteroids-like sample |
| 22 | class DrawLitAtlasDrawable : public SkDrawable { |
| 23 | public: |
| 24 | DrawLitAtlasDrawable(const SkRect& r) |
| 25 | : fBounds(r) |
| 26 | , fUseColors(false) |
| 27 | , fLightDir(SkVector3::Make(1.0f, 0.0f, 0.0f)) { |
| 28 | fAtlas = MakeAtlas(); |
| 29 | |
| 30 | SkRandom rand; |
| 31 | for (int i = 0; i < kNumAsteroids; ++i) { |
| 32 | fAsteroids[i].initAsteroid(&rand, fBounds, &fDiffTex[i], &fNormTex[i]); |
| 33 | } |
| 34 | |
| 35 | fShip.initShip(fBounds, &fDiffTex[kNumAsteroids], &fNormTex[kNumAsteroids]); |
| 36 | |
| 37 | this->updateLights(); |
| 38 | } |
| 39 | |
| 40 | void toggleUseColors() { |
| 41 | fUseColors = !fUseColors; |
| 42 | } |
| 43 | |
| 44 | void rotateLight() { |
| 45 | SkScalar c; |
| 46 | SkScalar s = SkScalarSinCos(SK_ScalarPI/6.0f, &c); |
| 47 | |
| 48 | SkScalar newX = c * fLightDir.fX - s * fLightDir.fY; |
| 49 | SkScalar newY = s * fLightDir.fX + c * fLightDir.fY; |
| 50 | |
| 51 | fLightDir.set(newX, newY, 0.0f); |
| 52 | |
| 53 | this->updateLights(); |
| 54 | } |
| 55 | |
| 56 | void left() { |
| 57 | SkScalar newRot = SkScalarMod(fShip.rot() + (2*SK_ScalarPI - SK_ScalarPI/32.0f), |
| 58 | 2 * SK_ScalarPI); |
| 59 | fShip.setRot(newRot); |
| 60 | } |
| 61 | |
| 62 | void right() { |
| 63 | SkScalar newRot = SkScalarMod(fShip.rot() + SK_ScalarPI/32.0f, 2 * SK_ScalarPI); |
| 64 | fShip.setRot(newRot); |
| 65 | } |
| 66 | |
| 67 | void thrust() { |
| 68 | SkScalar c; |
| 69 | SkScalar s = SkScalarSinCos(fShip.rot(), &c); |
| 70 | |
| 71 | SkVector newVel = fShip.velocity(); |
| 72 | newVel.fX += s; |
| 73 | newVel.fY += -c; |
| 74 | |
| 75 | SkScalar len = newVel.length(); |
| 76 | if (len > kMaxShipSpeed) { |
| 77 | newVel.setLength(SkIntToScalar(kMaxShipSpeed)); |
| 78 | } |
| 79 | |
| 80 | fShip.setVelocity(newVel); |
| 81 | } |
| 82 | |
| 83 | protected: |
| 84 | void onDraw(SkCanvas* canvas) override { |
| 85 | SkRSXform xforms[kNumAsteroids+kNumShips]; |
| 86 | SkColor colors[kNumAsteroids+kNumShips]; |
| 87 | |
| 88 | for (int i = 0; i < kNumAsteroids; ++i) { |
| 89 | fAsteroids[i].advance(fBounds); |
| 90 | xforms[i] = fAsteroids[i].asRSXform(); |
| 91 | if (fUseColors) { |
| 92 | colors[i] = SkColorSetARGB(0xFF, 0xFF, 0xFF, 0xFF); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | fShip.advance(fBounds); |
| 97 | xforms[kNumAsteroids] = fShip.asRSXform(); |
| 98 | if (fUseColors) { |
| 99 | colors[kNumAsteroids] = SkColorSetARGB(0xFF, 0xFF, 0xFF, 0xFF); |
| 100 | } |
| 101 | |
| 102 | #ifdef SK_DEBUG |
| 103 | canvas->drawBitmap(fAtlas, 0, 0); // just to see the atlas |
| 104 | |
| 105 | this->drawLightDir(canvas, fBounds.centerX(), fBounds.centerY()); |
| 106 | #endif |
| 107 | |
| 108 | #if 0 |
| 109 | // TODO: revitalize when drawLitAtlas API lands |
| 110 | SkPaint paint; |
| 111 | paint.setFilterQuality(kLow_SkFilterQuality); |
| 112 | |
| 113 | const SkRect cull = this->getBounds(); |
| 114 | const SkColor* colorsPtr = fUseColors ? colors : NULL; |
| 115 | |
| 116 | canvas->drawLitAtlas(fAtlas, xforms, fDiffTex, fNormTex, colorsPtr, kNumAsteroids+1, |
| 117 | SkXfermode::kModulate_Mode, &cull, &paint, fLights); |
| 118 | #else |
| 119 | SkMatrix diffMat, normalMat; |
| 120 | |
| 121 | for (int i = 0; i < kNumAsteroids+1; ++i) { |
| 122 | colors[i] = colors[i] & 0xFF000000; // to silence compilers |
| 123 | SkPaint paint; |
| 124 | |
| 125 | SkRect r = fDiffTex[i]; |
| 126 | r.offsetTo(0, 0); |
| 127 | |
| 128 | diffMat.setRectToRect(fDiffTex[i], r, SkMatrix::kFill_ScaleToFit); |
| 129 | normalMat.setRectToRect(fNormTex[i], r, SkMatrix::kFill_ScaleToFit); |
| 130 | |
| 131 | SkMatrix m; |
| 132 | m.setRSXform(xforms[i]); |
| 133 | |
| 134 | sk_sp<SkShader> normalMap = SkShader::MakeBitmapShader(fAtlas, SkShader::kClamp_TileMode, |
| 135 | SkShader::kClamp_TileMode, &normalMat); |
| 136 | sk_sp<SkNormalSource> normalSource = SkNormalSource::MakeFromNormalMap( |
| 137 | std::move(normalMap), m); |
| 138 | sk_sp<SkShader> diffuseShader = SkShader::MakeBitmapShader(fAtlas, |
| 139 | SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, &diffMat); |
| 140 | paint.setShader(SkLightingShader::Make(std::move(diffuseShader), |
| 141 | std::move(normalSource), fLights)); |
| 142 | |
| 143 | canvas->save(); |
| 144 | canvas->setMatrix(m); |
| 145 | canvas->drawRect(r, paint); |
| 146 | canvas->restore(); |
| 147 | } |
| 148 | #endif |
| 149 | |
| 150 | #ifdef SK_DEBUG |
| 151 | { |
| 152 | SkPaint paint; |
| 153 | paint.setColor(SK_ColorRED); |
| 154 | |
| 155 | for (int i = 0; i < kNumAsteroids; ++i) { |
| 156 | canvas->drawCircle(fAsteroids[i].pos().x(), fAsteroids[i].pos().y(), 2, paint); |
| 157 | } |
| 158 | canvas->drawCircle(fShip.pos().x(), fShip.pos().y(), 2, paint); |
| 159 | |
| 160 | paint.setStyle(SkPaint::kStroke_Style); |
| 161 | canvas->drawRect(this->getBounds(), paint); |
| 162 | } |
| 163 | #endif |
| 164 | } |
| 165 | |
| 166 | SkRect onGetBounds() override { |
| 167 | return fBounds; |
| 168 | } |
| 169 | |
| 170 | private: |
| 171 | |
| 172 | enum ObjType { |
| 173 | kBigAsteroid_ObjType = 0, |
| 174 | kMedAsteroid_ObjType, |
| 175 | kSmAsteroid_ObjType, |
| 176 | kShip_ObjType, |
| 177 | |
| 178 | kLast_ObjType = kShip_ObjType |
| 179 | }; |
| 180 | |
| 181 | static const int kObjTypeCount = kLast_ObjType + 1; |
| 182 | |
| 183 | void updateLights() { |
| 184 | SkLights::Builder builder; |
| 185 | |
| 186 | builder.add(SkLights::Light::MakeDirectional( |
| 187 | SkColor3f::Make(1.0f, 1.0f, 1.0f), fLightDir)); |
| 188 | builder.setAmbientLightColor(SkColor3f::Make(0.2f, 0.2f, 0.2f)); |
| 189 | |
| 190 | fLights = builder.finish(); |
| 191 | } |
| 192 | |
| 193 | #ifdef SK_DEBUG |
| 194 | // Draw a vector to the light |
| 195 | void drawLightDir(SkCanvas* canvas, SkScalar centerX, SkScalar centerY) { |
| 196 | static const int kBgLen = 30; |
| 197 | static const int kSmLen = 5; |
| 198 | |
| 199 | // TODO: change the lighting coordinate system to be right handed |
| 200 | SkPoint p1 = SkPoint::Make(centerX + kBgLen * fLightDir.fX, |
| 201 | centerY - kBgLen * fLightDir.fY); |
| 202 | SkPoint p2 = SkPoint::Make(centerX + (kBgLen-kSmLen) * fLightDir.fX, |
| 203 | centerY - (kBgLen-kSmLen) * fLightDir.fY); |
| 204 | |
| 205 | SkPaint p; |
| 206 | canvas->drawLine(centerX, centerY, p1.fX, p1.fY, p); |
| 207 | canvas->drawLine(p1.fX, p1.fY, |
| 208 | p2.fX - kSmLen * fLightDir.fY, p2.fY - kSmLen * fLightDir.fX, p); |
| 209 | canvas->drawLine(p1.fX, p1.fY, |
| 210 | p2.fX + kSmLen * fLightDir.fY, p2.fY + kSmLen * fLightDir.fX, p); |
| 211 | } |
| 212 | #endif |
| 213 | |
| 214 | // Create the mixed diffuse & normal atlas |
| 215 | // |
| 216 | // big color circle | big normal hemi |
| 217 | // ------------------------------------ |
| 218 | // med color circle | med normal pyra |
| 219 | // ------------------------------------ |
| 220 | // sm color circle | sm normal hemi |
| 221 | // ------------------------------------ |
| 222 | // big ship | big tetra normal |
| 223 | static SkBitmap MakeAtlas() { |
| 224 | |
| 225 | SkBitmap atlas; |
| 226 | atlas.allocN32Pixels(kAtlasWidth, kAtlasHeight); |
| 227 | |
| 228 | for (int y = 0; y < kAtlasHeight; ++y) { |
| 229 | int x = 0; |
| 230 | for ( ; x < kBigSize+kPad; ++x) { |
| 231 | *atlas.getAddr32(x, y) = SK_ColorTRANSPARENT; |
| 232 | } |
| 233 | for ( ; x < kAtlasWidth; ++x) { |
| 234 | *atlas.getAddr32(x, y) = SkPackARGB32(0xFF, 0x88, 0x88, 0xFF); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | // big asteroid |
| 239 | { |
| 240 | SkPoint bigCenter = SkPoint::Make(kDiffXOff + kBigSize/2.0f, kBigYOff + kBigSize/2.0f); |
| 241 | |
| 242 | for (int y = kBigYOff; y < kBigYOff+kBigSize; ++y) { |
| 243 | for (int x = kDiffXOff; x < kDiffXOff+kBigSize; ++x) { |
| 244 | SkScalar distSq = (x - bigCenter.fX) * (x - bigCenter.fX) + |
| 245 | (y - bigCenter.fY) * (y - bigCenter.fY); |
| 246 | if (distSq > kBigSize*kBigSize/4.0f) { |
| 247 | *atlas.getAddr32(x, y) = SkPreMultiplyARGB(0, 0, 0, 0); |
| 248 | } else { |
| 249 | *atlas.getAddr32(x, y) = SkPackARGB32(0xFF, 0xFF, 0, 0); |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | sk_tool_utils::create_hemi_normal_map(&atlas, |
| 255 | SkIRect::MakeXYWH(kNormXOff, kBigYOff, |
| 256 | kBigSize, kBigSize)); |
| 257 | } |
| 258 | |
| 259 | // medium asteroid |
| 260 | { |
| 261 | for (int y = kMedYOff; y < kMedYOff+kMedSize; ++y) { |
| 262 | for (int x = kDiffXOff; x < kDiffXOff+kMedSize; ++x) { |
| 263 | *atlas.getAddr32(x, y) = SkPackARGB32(0xFF, 0, 0xFF, 0); |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | sk_tool_utils::create_frustum_normal_map(&atlas, |
| 268 | SkIRect::MakeXYWH(kNormXOff, kMedYOff, |
| 269 | kMedSize, kMedSize)); |
| 270 | } |
| 271 | |
| 272 | // small asteroid |
| 273 | { |
| 274 | SkPoint smCenter = SkPoint::Make(kDiffXOff + kSmSize/2.0f, kSmYOff + kSmSize/2.0f); |
| 275 | |
| 276 | for (int y = kSmYOff; y < kSmYOff+kSmSize; ++y) { |
| 277 | for (int x = kDiffXOff; x < kDiffXOff+kSmSize; ++x) { |
| 278 | SkScalar distSq = (x - smCenter.fX) * (x - smCenter.fX) + |
| 279 | (y - smCenter.fY) * (y - smCenter.fY); |
| 280 | if (distSq > kSmSize*kSmSize/4.0f) { |
| 281 | *atlas.getAddr32(x, y) = SkPreMultiplyARGB(0, 0, 0, 0); |
| 282 | } else { |
| 283 | *atlas.getAddr32(x, y) = SkPackARGB32(0xFF, 0, 0, 0xFF); |
| 284 | } |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | sk_tool_utils::create_hemi_normal_map(&atlas, |
| 289 | SkIRect::MakeXYWH(kNormXOff, kSmYOff, |
| 290 | kSmSize, kSmSize)); |
| 291 | } |
| 292 | |
| 293 | // ship |
| 294 | { |
| 295 | SkScalar shipMidLine = kDiffXOff + kMedSize/2.0f; |
| 296 | |
| 297 | for (int y = kShipYOff; y < kShipYOff+kMedSize; ++y) { |
| 298 | SkScalar scaledY = (y - kShipYOff)/(float)kMedSize; // 0..1 |
| 299 | |
| 300 | for (int x = kDiffXOff; x < kDiffXOff+kMedSize; ++x) { |
| 301 | SkScalar scaledX; |
| 302 | |
| 303 | if (x < shipMidLine) { |
| 304 | scaledX = 1.0f - (x - kDiffXOff)/(kMedSize/2.0f); // 0..1 |
| 305 | } else { |
| 306 | scaledX = (x - shipMidLine)/(kMedSize/2.0f); // 0..1 |
| 307 | } |
| 308 | |
| 309 | if (scaledX < scaledY) { |
| 310 | *atlas.getAddr32(x, y) = SkPackARGB32(0xFF, 0, 0xFF, 0xFF); |
| 311 | } else { |
| 312 | *atlas.getAddr32(x, y) = SkPackARGB32(0, 0, 0, 0); |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | sk_tool_utils::create_tetra_normal_map(&atlas, |
| 318 | SkIRect::MakeXYWH(kNormXOff, kShipYOff, |
| 319 | kMedSize, kMedSize)); |
| 320 | } |
| 321 | |
| 322 | return atlas; |
| 323 | } |
| 324 | |
| 325 | class ObjectRecord { |
| 326 | public: |
| 327 | void initAsteroid(SkRandom *rand, const SkRect& bounds, |
| 328 | SkRect* diffTex, SkRect* normTex) { |
| 329 | static const SkScalar gMaxSpeeds[3] = { 1, 2, 5 }; // smaller asteroids can go faster |
| 330 | static const SkScalar gYOffs[3] = { kBigYOff, kMedYOff, kSmYOff }; |
| 331 | static const SkScalar gSizes[3] = { kBigSize, kMedSize, kSmSize }; |
| 332 | |
| 333 | static unsigned int asteroidType = 0; |
| 334 | fObjType = static_cast<ObjType>(asteroidType++ % 3); |
| 335 | |
| 336 | fPosition.set(bounds.fLeft + rand->nextUScalar1() * bounds.width(), |
| 337 | bounds.fTop + rand->nextUScalar1() * bounds.height()); |
| 338 | fVelocity.fX = rand->nextSScalar1(); |
| 339 | fVelocity.fY = sqrt(1.0f - fVelocity.fX * fVelocity.fX); |
| 340 | SkASSERT(SkScalarNearlyEqual(fVelocity.length(), 1.0f)); |
| 341 | fVelocity *= gMaxSpeeds[fObjType]; |
| 342 | fRot = 0; |
| 343 | fDeltaRot = rand->nextSScalar1() / 32; |
| 344 | |
| 345 | diffTex->setXYWH(SkIntToScalar(kDiffXOff), gYOffs[fObjType], |
| 346 | gSizes[fObjType], gSizes[fObjType]); |
| 347 | normTex->setXYWH(SkIntToScalar(kNormXOff), gYOffs[fObjType], |
| 348 | gSizes[fObjType], gSizes[fObjType]); |
| 349 | } |
| 350 | |
| 351 | void initShip(const SkRect& bounds, SkRect* diffTex, SkRect* normTex) { |
| 352 | fObjType = kShip_ObjType; |
| 353 | fPosition.set(bounds.centerX(), bounds.centerY()); |
| 354 | fVelocity = SkVector::Make(0.0f, 0.0f); |
| 355 | fRot = 0.0f; |
| 356 | fDeltaRot = 0.0f; |
| 357 | |
| 358 | diffTex->setXYWH(SkIntToScalar(kDiffXOff), SkIntToScalar(kShipYOff), |
| 359 | SkIntToScalar(kMedSize), SkIntToScalar(kMedSize)); |
| 360 | normTex->setXYWH(SkIntToScalar(kNormXOff), SkIntToScalar(kShipYOff), |
| 361 | SkIntToScalar(kMedSize), SkIntToScalar(kMedSize)); |
| 362 | } |
| 363 | |
| 364 | void advance(const SkRect& bounds) { |
| 365 | fPosition += fVelocity; |
| 366 | if (fPosition.fX > bounds.right()) { |
| 367 | SkASSERT(fVelocity.fX > 0); |
| 368 | fVelocity.fX = -fVelocity.fX; |
| 369 | } else if (fPosition.fX < bounds.left()) { |
| 370 | SkASSERT(fVelocity.fX < 0); |
| 371 | fVelocity.fX = -fVelocity.fX; |
| 372 | } |
| 373 | if (fPosition.fY > bounds.bottom()) { |
| 374 | if (fVelocity.fY > 0) { |
| 375 | fVelocity.fY = -fVelocity.fY; |
| 376 | } |
| 377 | } else if (fPosition.fY < bounds.top()) { |
| 378 | if (fVelocity.fY < 0) { |
| 379 | fVelocity.fY = -fVelocity.fY; |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | fRot += fDeltaRot; |
| 384 | fRot = SkScalarMod(fRot, 2 * SK_ScalarPI); |
| 385 | } |
| 386 | |
| 387 | const SkPoint& pos() const { return fPosition; } |
| 388 | |
| 389 | SkScalar rot() const { return fRot; } |
| 390 | void setRot(SkScalar rot) { fRot = rot; } |
| 391 | |
| 392 | const SkPoint& velocity() const { return fVelocity; } |
| 393 | void setVelocity(const SkPoint& velocity) { fVelocity = velocity; } |
| 394 | |
| 395 | SkRSXform asRSXform() const { |
| 396 | static const SkScalar gHalfSizes[kObjTypeCount] = { |
| 397 | SkScalarHalf(kBigSize), |
| 398 | SkScalarHalf(kMedSize), |
| 399 | SkScalarHalf(kSmSize), |
| 400 | SkScalarHalf(kMedSize), |
| 401 | }; |
| 402 | |
| 403 | return SkRSXform::MakeFromRadians(1.0f, fRot, fPosition.x(), fPosition.y(), |
| 404 | gHalfSizes[fObjType], |
| 405 | gHalfSizes[fObjType]); |
| 406 | } |
| 407 | |
| 408 | private: |
| 409 | ObjType fObjType; |
| 410 | SkPoint fPosition; |
| 411 | SkVector fVelocity; |
| 412 | SkScalar fRot; // In radians. |
| 413 | SkScalar fDeltaRot; // In radiands. Not used by ship. |
| 414 | }; |
| 415 | |
| 416 | private: |
| 417 | static const int kNumLights = 2; |
| 418 | static const int kNumAsteroids = 6; |
| 419 | static const int kNumShips = 1; |
| 420 | |
| 421 | static const int kBigSize = 128; |
| 422 | static const int kMedSize = 64; |
| 423 | static const int kSmSize = 32; |
| 424 | static const int kPad = 1; |
| 425 | static const int kAtlasWidth = kBigSize + kBigSize + 2 * kPad; // 2 pads in the middle |
| 426 | static const int kAtlasHeight = kBigSize + kMedSize + kSmSize + kMedSize + 3 * kPad; |
| 427 | |
| 428 | static const int kDiffXOff = 0; |
| 429 | static const int kNormXOff = kBigSize + 2 * kPad; |
| 430 | |
| 431 | static const int kBigYOff = 0; |
| 432 | static const int kMedYOff = kBigSize + kPad; |
| 433 | static const int kSmYOff = kMedYOff + kMedSize + kPad; |
| 434 | static const int kShipYOff = kSmYOff + kSmSize + kPad; |
| 435 | static const int kMaxShipSpeed = 5; |
| 436 | |
| 437 | SkBitmap fAtlas; |
| 438 | ObjectRecord fAsteroids[kNumAsteroids]; |
| 439 | ObjectRecord fShip; |
| 440 | SkRect fDiffTex[kNumAsteroids+kNumShips]; |
| 441 | SkRect fNormTex[kNumAsteroids+kNumShips]; |
| 442 | SkRect fBounds; |
| 443 | bool fUseColors; |
| 444 | SkVector3 fLightDir; |
| 445 | sk_sp<SkLights> fLights; |
| 446 | |
| 447 | typedef SkDrawable INHERITED; |
| 448 | }; |
| 449 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 450 | class DrawLitAtlasView : public Sample { |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 451 | public: |
| 452 | DrawLitAtlasView() : fDrawable(new DrawLitAtlasDrawable(SkRect::MakeWH(640, 480))) {} |
| 453 | |
| 454 | protected: |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 455 | bool onQuery(Sample::Event* evt) override { |
| 456 | if (Sample::TitleQ(*evt)) { |
| 457 | Sample::TitleR(evt, "DrawLitAtlas"); |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 458 | return true; |
| 459 | } |
| 460 | SkUnichar uni; |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 461 | if (Sample::CharQ(*evt, &uni)) { |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 462 | switch (uni) { |
| 463 | case 'C': |
| 464 | fDrawable->toggleUseColors(); |
| 465 | return true; |
| 466 | case 'j': |
| 467 | fDrawable->left(); |
| 468 | return true; |
| 469 | case 'k': |
| 470 | fDrawable->thrust(); |
| 471 | return true; |
| 472 | case 'l': |
| 473 | fDrawable->right(); |
| 474 | return true; |
| 475 | case 'o': |
| 476 | fDrawable->rotateLight(); |
| 477 | return true; |
| 478 | default: |
| 479 | break; |
| 480 | } |
| 481 | } |
| 482 | return this->INHERITED::onQuery(evt); |
| 483 | } |
| 484 | |
| 485 | void onDrawContent(SkCanvas* canvas) override { |
| 486 | canvas->drawDrawable(fDrawable.get()); |
| 487 | } |
| 488 | |
| 489 | bool onAnimate(const SkAnimTimer& timer) override { |
| 490 | return true; |
| 491 | } |
| 492 | |
| 493 | private: |
| 494 | sk_sp<DrawLitAtlasDrawable> fDrawable; |
| 495 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 496 | typedef Sample INHERITED; |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 497 | }; |
| 498 | |
| 499 | ////////////////////////////////////////////////////////////////////////////// |
| 500 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 501 | DEF_SAMPLE( return new DrawLitAtlasView(); ) |