src/skia/ext/lazy_pixel_ref_utils_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/compiler_specific.h"
   6 #include "base/memory/scoped_ptr.h"
   7 #include "cc/test/geometry_test_utils.h"
   8 #include "skia/ext/lazy_pixel_ref.h"
   9 #include "skia/ext/lazy_pixel_ref_utils.h"
  10 #include "skia/ext/refptr.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12 #include "third_party/skia/include/core/SkBitmap.h"
  13 #include "third_party/skia/include/core/SkCanvas.h"
  14 #include "third_party/skia/include/core/SkFlattenableBuffers.h"
  15 #include "third_party/skia/include/core/SkPoint.h"
  16 #include "third_party/skia/include/core/SkShader.h"
  17 #include "third_party/skia/src/core/SkOrderedReadBuffer.h"
  18 #include "ui/gfx/rect.h"
  19 #include "ui/gfx/skia_util.h"
  20
  21 namespace skia {
  22
  23 namespace {
  24
  25 void CreateBitmap(gfx::Size size, const char* uri, SkBitmap* bitmap);
  26
  27 class TestPixelRef : public SkPixelRef {
  28  public:
  29   TestPixelRef(int width, int height);
  30   virtual ~TestPixelRef();
  31
  32   virtual SkFlattenable::Factory getFactory() const OVERRIDE;
  33   virtual void* onLockPixels(SkColorTable** color_table) OVERRIDE;
  34   virtual void onUnlockPixels() OVERRIDE {}
  35   virtual SkPixelRef* deepCopy(SkBitmap::Config config, const SkIRect* subset)
  36       OVERRIDE;
  37
  38  private:
  39   scoped_ptr<char[]> pixels_;
  40 };
  41
  42 class TestLazyPixelRef : public skia::LazyPixelRef {
  43  public:
  44   TestLazyPixelRef(int width, int height);
  45   virtual ~TestLazyPixelRef();
  46
  47   virtual SkFlattenable::Factory getFactory() const OVERRIDE;
  48   virtual void* onLockPixels(SkColorTable** color_table) OVERRIDE;
  49   virtual void onUnlockPixels() OVERRIDE {}
  50   virtual bool PrepareToDecode(const PrepareParams& params) OVERRIDE;
  51   virtual bool MaybeDecoded() OVERRIDE;
  52   virtual SkPixelRef* deepCopy(SkBitmap::Config config, const SkIRect* subset)
  53       OVERRIDE;
  54   virtual void Decode() OVERRIDE {}
  55
  56  private:
  57   scoped_ptr<char[]> pixels_;
  58 };
  59
  60 class TestLazyShader : public SkShader {
  61  public:
  62   TestLazyShader() { CreateBitmap(gfx::Size(50, 50), "lazy", &bitmap_); }
  63
  64   TestLazyShader(SkFlattenableReadBuffer& flattenable_buffer) {
  65     SkOrderedReadBuffer& buffer =
  66         static_cast<SkOrderedReadBuffer&>(flattenable_buffer);
  67     SkReader32* reader = buffer.getReader32();
  68
  69     reader->skip(-4);
  70     uint32_t toSkip = reader->readU32();
  71     reader->skip(toSkip);
  72
  73     CreateBitmap(gfx::Size(50, 50), "lazy", &bitmap_);
  74   }
  75
  76   virtual SkShader::BitmapType asABitmap(SkBitmap* bitmap,
  77                                          SkMatrix* matrix,
  78                                          TileMode xy[2]) const OVERRIDE {
  79     if (bitmap)
  80       *bitmap = bitmap_;
  81     return SkShader::kDefault_BitmapType;
  82   }
  83
  84   // Pure virtual implementaiton.
  85   virtual void shadeSpan(int x, int y, SkPMColor[], int count) OVERRIDE {}
  86   SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(TestLazyShader);
  87
  88  private:
  89   SkBitmap bitmap_;
  90 };
  91
  92 TestPixelRef::TestPixelRef(int width, int height)
  93     : pixels_(new char[4 * width * height]) {}
  94
  95 TestPixelRef::~TestPixelRef() {}
  96
  97 SkFlattenable::Factory TestPixelRef::getFactory() const { return NULL; }
  98
  99 void* TestPixelRef::onLockPixels(SkColorTable** color_table) {
 100   return pixels_.get();
 101 }
 102
 103 SkPixelRef* TestPixelRef::deepCopy(SkBitmap::Config config,
 104                                    const SkIRect* subset) {
 105   this->ref();
 106   return this;
 107 }
 108
 109 TestLazyPixelRef::TestLazyPixelRef(int width, int height)
 110     : pixels_(new char[4 * width * height]) {}
 111
 112 TestLazyPixelRef::~TestLazyPixelRef() {}
 113
 114 SkFlattenable::Factory TestLazyPixelRef::getFactory() const { return NULL; }
 115
 116 void* TestLazyPixelRef::onLockPixels(SkColorTable** color_table) {
 117   return pixels_.get();
 118 }
 119
 120 bool TestLazyPixelRef::PrepareToDecode(const PrepareParams& params) {
 121   return true;
 122 }
 123
 124 bool TestLazyPixelRef::MaybeDecoded() {
 125   return true;
 126 }
 127
 128 SkPixelRef* TestLazyPixelRef::deepCopy(SkBitmap::Config config,
 129                                        const SkIRect* subset) {
 130   this->ref();
 131   return this;
 132 }
 133
 134 void CreateBitmap(gfx::Size size, const char* uri, SkBitmap* bitmap) {
 135   skia::RefPtr<TestLazyPixelRef> lazy_pixel_ref =
 136       skia::AdoptRef(new TestLazyPixelRef(size.width(), size.height()));
 137   lazy_pixel_ref->setURI(uri);
 138
 139   bitmap->setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
 140   bitmap->setPixelRef(lazy_pixel_ref.get());
 141 }
 142
 143 SkCanvas* StartRecording(SkPicture* picture, gfx::Rect layer_rect) {
 144   SkCanvas* canvas = picture->beginRecording(
 145       layer_rect.width(),
 146       layer_rect.height(),
 147       SkPicture::kUsePathBoundsForClip_RecordingFlag |
 148           SkPicture::kOptimizeForClippedPlayback_RecordingFlag);
 149
 150   canvas->save();
 151   canvas->translate(-layer_rect.x(), -layer_rect.y());
 152   canvas->clipRect(SkRect::MakeXYWH(
 153       layer_rect.x(), layer_rect.y(), layer_rect.width(), layer_rect.height()));
 154
 155   return canvas;
 156 }
 157
 158 void StopRecording(SkPicture* picture, SkCanvas* canvas) {
 159   canvas->restore();
 160   picture->endRecording();
 161 }
 162
 163 }  // namespace
 164
 165 TEST(LazyPixelRefUtilsTest, DrawPaint) {
 166   gfx::Rect layer_rect(0, 0, 256, 256);
 167
 168   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 169   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 170
 171   TestLazyShader first_shader;
 172   SkPaint first_paint;
 173   first_paint.setShader(&first_shader);
 174
 175   TestLazyShader second_shader;
 176   SkPaint second_paint;
 177   second_paint.setShader(&second_shader);
 178
 179   TestLazyShader third_shader;
 180   SkPaint third_paint;
 181   third_paint.setShader(&third_shader);
 182
 183   canvas->drawPaint(first_paint);
 184   canvas->clipRect(SkRect::MakeXYWH(34, 45, 56, 67));
 185   canvas->drawPaint(second_paint);
 186   // Total clip is now (34, 45, 56, 55)
 187   canvas->clipRect(SkRect::MakeWH(100, 100));
 188   canvas->drawPaint(third_paint);
 189
 190   StopRecording(picture.get(), canvas);
 191
 192   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 193   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 194
 195   EXPECT_EQ(3u, pixel_refs.size());
 196   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 256, 256),
 197                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 198   EXPECT_FLOAT_RECT_EQ(gfx::RectF(34, 45, 56, 67),
 199                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 200   EXPECT_FLOAT_RECT_EQ(gfx::RectF(34, 45, 56, 55),
 201                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 202 }
 203
 204 TEST(LazyPixelRefUtilsTest, DrawPoints) {
 205   gfx::Rect layer_rect(0, 0, 256, 256);
 206
 207   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 208   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 209
 210   TestLazyShader first_shader;
 211   SkPaint first_paint;
 212   first_paint.setShader(&first_shader);
 213
 214   TestLazyShader second_shader;
 215   SkPaint second_paint;
 216   second_paint.setShader(&second_shader);
 217
 218   TestLazyShader third_shader;
 219   SkPaint third_paint;
 220   third_paint.setShader(&third_shader);
 221
 222   SkPoint points[3];
 223   points[0].set(10, 10);
 224   points[1].set(100, 20);
 225   points[2].set(50, 100);
 226   // (10, 10, 90, 90).
 227   canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, points, first_paint);
 228
 229   canvas->save();
 230
 231   canvas->clipRect(SkRect::MakeWH(50, 50));
 232   // (10, 10, 40, 40).
 233   canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, points, second_paint);
 234
 235   canvas->restore();
 236
 237   points[0].set(50, 55);
 238   points[1].set(50, 55);
 239   points[2].set(200, 200);
 240   // (50, 55, 150, 145).
 241   canvas->drawPoints(SkCanvas::kPolygon_PointMode, 3, points, third_paint);
 242
 243   StopRecording(picture.get(), canvas);
 244
 245   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 246   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 247
 248   EXPECT_EQ(3u, pixel_refs.size());
 249   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 10, 90, 90),
 250                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 251   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 10, 40, 40),
 252                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 253   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 55, 150, 145),
 254                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 255 }
 256
 257 TEST(LazyPixelRefUtilsTest, DrawRect) {
 258   gfx::Rect layer_rect(0, 0, 256, 256);
 259
 260   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 261   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 262
 263   TestLazyShader first_shader;
 264   SkPaint first_paint;
 265   first_paint.setShader(&first_shader);
 266
 267   TestLazyShader second_shader;
 268   SkPaint second_paint;
 269   second_paint.setShader(&second_shader);
 270
 271   TestLazyShader third_shader;
 272   SkPaint third_paint;
 273   third_paint.setShader(&third_shader);
 274
 275   // (10, 20, 30, 40).
 276   canvas->drawRect(SkRect::MakeXYWH(10, 20, 30, 40), first_paint);
 277
 278   canvas->save();
 279
 280   canvas->translate(5, 17);
 281   // (5, 50, 25, 35)
 282   canvas->drawRect(SkRect::MakeXYWH(0, 33, 25, 35), second_paint);
 283
 284   canvas->restore();
 285
 286   canvas->clipRect(SkRect::MakeXYWH(50, 50, 50, 50));
 287   canvas->translate(20, 20);
 288   // (50, 50, 50, 50)
 289   canvas->drawRect(SkRect::MakeXYWH(0, 0, 100, 100), third_paint);
 290
 291   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 292   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 293
 294   EXPECT_EQ(3u, pixel_refs.size());
 295   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 20, 30, 40),
 296                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 297   EXPECT_FLOAT_RECT_EQ(gfx::RectF(5, 50, 25, 35),
 298                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 299   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 50, 50, 50),
 300                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 301 }
 302
 303 TEST(LazyPixelRefUtilsTest, DrawRRect) {
 304   gfx::Rect layer_rect(0, 0, 256, 256);
 305
 306   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 307   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 308
 309   TestLazyShader first_shader;
 310   SkPaint first_paint;
 311   first_paint.setShader(&first_shader);
 312
 313   TestLazyShader second_shader;
 314   SkPaint second_paint;
 315   second_paint.setShader(&second_shader);
 316
 317   TestLazyShader third_shader;
 318   SkPaint third_paint;
 319   third_paint.setShader(&third_shader);
 320
 321   SkRRect rrect;
 322   rrect.setRect(SkRect::MakeXYWH(10, 20, 30, 40));
 323
 324   // (10, 20, 30, 40).
 325   canvas->drawRRect(rrect, first_paint);
 326
 327   canvas->save();
 328
 329   canvas->translate(5, 17);
 330   rrect.setRect(SkRect::MakeXYWH(0, 33, 25, 35));
 331   // (5, 50, 25, 35)
 332   canvas->drawRRect(rrect, second_paint);
 333
 334   canvas->restore();
 335
 336   canvas->clipRect(SkRect::MakeXYWH(50, 50, 50, 50));
 337   canvas->translate(20, 20);
 338   rrect.setRect(SkRect::MakeXYWH(0, 0, 100, 100));
 339   // (50, 50, 50, 50)
 340   canvas->drawRRect(rrect, third_paint);
 341
 342   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 343   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 344
 345   EXPECT_EQ(3u, pixel_refs.size());
 346   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 20, 30, 40),
 347                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 348   EXPECT_FLOAT_RECT_EQ(gfx::RectF(5, 50, 25, 35),
 349                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 350   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 50, 50, 50),
 351                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 352 }
 353
 354 TEST(LazyPixelRefUtilsTest, DrawOval) {
 355   gfx::Rect layer_rect(0, 0, 256, 256);
 356
 357   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 358   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 359
 360   TestLazyShader first_shader;
 361   SkPaint first_paint;
 362   first_paint.setShader(&first_shader);
 363
 364   TestLazyShader second_shader;
 365   SkPaint second_paint;
 366   second_paint.setShader(&second_shader);
 367
 368   TestLazyShader third_shader;
 369   SkPaint third_paint;
 370   third_paint.setShader(&third_shader);
 371
 372   canvas->save();
 373
 374   canvas->scale(2, 0.5);
 375   // (20, 10, 60, 20).
 376   canvas->drawOval(SkRect::MakeXYWH(10, 20, 30, 40), first_paint);
 377
 378   canvas->restore();
 379   canvas->save();
 380
 381   canvas->translate(1, 2);
 382   // (1, 35, 25, 35)
 383   canvas->drawRect(SkRect::MakeXYWH(0, 33, 25, 35), second_paint);
 384
 385   canvas->restore();
 386
 387   canvas->clipRect(SkRect::MakeXYWH(50, 50, 50, 50));
 388   canvas->translate(20, 20);
 389   // (50, 50, 50, 50)
 390   canvas->drawRect(SkRect::MakeXYWH(0, 0, 100, 100), third_paint);
 391
 392   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 393   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 394
 395   EXPECT_EQ(3u, pixel_refs.size());
 396   EXPECT_FLOAT_RECT_EQ(gfx::RectF(20, 10, 60, 20),
 397                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 398   EXPECT_FLOAT_RECT_EQ(gfx::RectF(1, 35, 25, 35),
 399                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 400   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 50, 50, 50),
 401                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 402 }
 403
 404 TEST(LazyPixelRefUtilsTest, DrawPath) {
 405   gfx::Rect layer_rect(0, 0, 256, 256);
 406
 407   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 408   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 409
 410   TestLazyShader first_shader;
 411   SkPaint first_paint;
 412   first_paint.setShader(&first_shader);
 413
 414   TestLazyShader second_shader;
 415   SkPaint second_paint;
 416   second_paint.setShader(&second_shader);
 417
 418   SkPath path;
 419   path.moveTo(12, 13);
 420   path.lineTo(50, 50);
 421   path.lineTo(22, 101);
 422
 423   // (12, 13, 38, 88).
 424   canvas->drawPath(path, first_paint);
 425
 426   canvas->save();
 427   canvas->clipRect(SkRect::MakeWH(50, 50));
 428
 429   // (12, 13, 38, 37).
 430   canvas->drawPath(path, second_paint);
 431
 432   canvas->restore();
 433
 434   StopRecording(picture.get(), canvas);
 435
 436   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 437   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 438
 439   EXPECT_EQ(2u, pixel_refs.size());
 440   EXPECT_FLOAT_RECT_EQ(gfx::RectF(12, 13, 38, 88),
 441                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 442   EXPECT_FLOAT_RECT_EQ(gfx::RectF(12, 13, 38, 37),
 443                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 444 }
 445
 446 TEST(LazyPixelRefUtilsTest, DrawBitmap) {
 447   gfx::Rect layer_rect(0, 0, 256, 256);
 448
 449   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 450   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 451
 452   SkBitmap first;
 453   CreateBitmap(gfx::Size(50, 50), "lazy", &first);
 454   SkBitmap second;
 455   CreateBitmap(gfx::Size(50, 50), "lazy", &second);
 456   SkBitmap third;
 457   CreateBitmap(gfx::Size(50, 50), "lazy", &third);
 458   SkBitmap fourth;
 459   CreateBitmap(gfx::Size(50, 1), "lazy", &fourth);
 460   SkBitmap fifth;
 461   CreateBitmap(gfx::Size(10, 10), "lazy", &fifth);
 462
 463   canvas->save();
 464
 465   // At (0, 0).
 466   canvas->drawBitmap(first, 0, 0);
 467   canvas->translate(25, 0);
 468   // At (25, 0).
 469   canvas->drawBitmap(second, 0, 0);
 470   canvas->translate(0, 50);
 471   // At (50, 50).
 472   canvas->drawBitmap(third, 25, 0);
 473
 474   canvas->restore();
 475   canvas->save();
 476
 477   canvas->translate(1, 0);
 478   canvas->rotate(90);
 479   // At (1, 0), rotated 90 degrees
 480   canvas->drawBitmap(fourth, 0, 0);
 481
 482   canvas->restore();
 483
 484   canvas->scale(5, 6);
 485   // At (0, 0), scaled by 5 and 6
 486   canvas->drawBitmap(fifth, 0, 0);
 487
 488   StopRecording(picture.get(), canvas);
 489
 490   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 491   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 492
 493   EXPECT_EQ(5u, pixel_refs.size());
 494   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 50, 50),
 495                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 496   EXPECT_FLOAT_RECT_EQ(gfx::RectF(25, 0, 50, 50),
 497                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 498   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 50, 50, 50),
 499                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 500   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 1, 50),
 501                        gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect));
 502   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 50, 60),
 503                        gfx::SkRectToRectF(pixel_refs[4].pixel_ref_rect));
 504
 505 }
 506
 507 TEST(LazyPixelRefUtilsTest, DrawBitmapRect) {
 508   gfx::Rect layer_rect(0, 0, 256, 256);
 509
 510   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 511   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 512
 513   SkBitmap first;
 514   CreateBitmap(gfx::Size(50, 50), "lazy", &first);
 515   SkBitmap second;
 516   CreateBitmap(gfx::Size(50, 50), "lazy", &second);
 517   SkBitmap third;
 518   CreateBitmap(gfx::Size(50, 50), "lazy", &third);
 519
 520   TestLazyShader first_shader;
 521   SkPaint first_paint;
 522   first_paint.setShader(&first_shader);
 523
 524   SkPaint non_lazy_paint;
 525
 526   canvas->save();
 527
 528   // (0, 0, 100, 100).
 529   canvas->drawBitmapRect(first, SkRect::MakeWH(100, 100), &non_lazy_paint);
 530   canvas->translate(25, 0);
 531   // (75, 50, 10, 10).
 532   canvas->drawBitmapRect(
 533       second, SkRect::MakeXYWH(50, 50, 10, 10), &non_lazy_paint);
 534   canvas->translate(5, 50);
 535   // (0, 30, 100, 100). One from bitmap, one from paint.
 536   canvas->drawBitmapRect(
 537       third, SkRect::MakeXYWH(-30, -20, 100, 100), &first_paint);
 538
 539   canvas->restore();
 540
 541   StopRecording(picture.get(), canvas);
 542
 543   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 544   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 545
 546   EXPECT_EQ(4u, pixel_refs.size());
 547   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 100, 100),
 548                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 549   EXPECT_FLOAT_RECT_EQ(gfx::RectF(75, 50, 10, 10),
 550                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 551   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 30, 100, 100),
 552                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 553   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 30, 100, 100),
 554                        gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect));
 555 }
 556
 557 TEST(LazyPixelRefUtilsTest, DrawSprite) {
 558   gfx::Rect layer_rect(0, 0, 256, 256);
 559
 560   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 561   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 562
 563   SkBitmap first;
 564   CreateBitmap(gfx::Size(50, 50), "lazy", &first);
 565   SkBitmap second;
 566   CreateBitmap(gfx::Size(50, 50), "lazy", &second);
 567   SkBitmap third;
 568   CreateBitmap(gfx::Size(50, 50), "lazy", &third);
 569   SkBitmap fourth;
 570   CreateBitmap(gfx::Size(50, 50), "lazy", &fourth);
 571   SkBitmap fifth;
 572   CreateBitmap(gfx::Size(50, 50), "lazy", &fifth);
 573
 574   canvas->save();
 575
 576   // Sprites aren't affected by the current matrix.
 577
 578   // (0, 0, 50, 50).
 579   canvas->drawSprite(first, 0, 0);
 580   canvas->translate(25, 0);
 581   // (10, 0, 50, 50).
 582   canvas->drawSprite(second, 10, 0);
 583   canvas->translate(0, 50);
 584   // (25, 0, 50, 50).
 585   canvas->drawSprite(third, 25, 0);
 586
 587   canvas->restore();
 588   canvas->save();
 589
 590   canvas->rotate(90);
 591   // (0, 0, 50, 50).
 592   canvas->drawSprite(fourth, 0, 0);
 593
 594   canvas->restore();
 595
 596   TestLazyShader first_shader;
 597   SkPaint first_paint;
 598   first_paint.setShader(&first_shader);
 599
 600   canvas->scale(5, 6);
 601   // (100, 100, 50, 50).
 602   canvas->drawSprite(fifth, 100, 100, &first_paint);
 603
 604   StopRecording(picture.get(), canvas);
 605
 606   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 607   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 608
 609   EXPECT_EQ(6u, pixel_refs.size());
 610   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 50, 50),
 611                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 612   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 0, 50, 50),
 613                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 614   EXPECT_FLOAT_RECT_EQ(gfx::RectF(25, 0, 50, 50),
 615                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 616   EXPECT_FLOAT_RECT_EQ(gfx::RectF(0, 0, 50, 50),
 617                        gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect));
 618   EXPECT_FLOAT_RECT_EQ(gfx::RectF(100, 100, 50, 50),
 619                        gfx::SkRectToRectF(pixel_refs[4].pixel_ref_rect));
 620   EXPECT_FLOAT_RECT_EQ(gfx::RectF(100, 100, 50, 50),
 621                        gfx::SkRectToRectF(pixel_refs[5].pixel_ref_rect));
 622 }
 623
 624 TEST(LazyPixelRefUtilsTest, DrawText) {
 625   gfx::Rect layer_rect(0, 0, 256, 256);
 626
 627   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 628   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 629
 630   TestLazyShader first_shader;
 631   SkPaint first_paint;
 632   first_paint.setShader(&first_shader);
 633
 634   SkPoint points[4];
 635   points[0].set(10, 50);
 636   points[1].set(20, 50);
 637   points[2].set(30, 50);
 638   points[3].set(40, 50);
 639
 640   SkPath path;
 641   path.moveTo(10, 50);
 642   path.lineTo(20, 50);
 643   path.lineTo(30, 50);
 644   path.lineTo(40, 50);
 645   path.lineTo(50, 50);
 646
 647   canvas->drawText("text", 4, 50, 50, first_paint);
 648   canvas->drawPosText("text", 4, points, first_paint);
 649   canvas->drawTextOnPath("text", 4, path, NULL, first_paint);
 650
 651   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 652   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 653
 654   EXPECT_EQ(3u, pixel_refs.size());
 655 }
 656
 657 TEST(LazyPixelRefUtilsTest, DrawVertices) {
 658   gfx::Rect layer_rect(0, 0, 256, 256);
 659
 660   skia::RefPtr<SkPicture> picture = skia::AdoptRef(new SkPicture);
 661   SkCanvas* canvas = StartRecording(picture.get(), layer_rect);
 662
 663   TestLazyShader first_shader;
 664   SkPaint first_paint;
 665   first_paint.setShader(&first_shader);
 666
 667   TestLazyShader second_shader;
 668   SkPaint second_paint;
 669   second_paint.setShader(&second_shader);
 670
 671   TestLazyShader third_shader;
 672   SkPaint third_paint;
 673   third_paint.setShader(&third_shader);
 674
 675   SkPoint points[3];
 676   SkColor colors[3];
 677   uint16_t indecies[3] = {0, 1, 2};
 678   points[0].set(10, 10);
 679   points[1].set(100, 20);
 680   points[2].set(50, 100);
 681   // (10, 10, 90, 90).
 682   canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
 683                        3,
 684                        points,
 685                        points,
 686                        colors,
 687                        NULL,
 688                        indecies,
 689                        3,
 690                        first_paint);
 691
 692   canvas->save();
 693
 694   canvas->clipRect(SkRect::MakeWH(50, 50));
 695   // (10, 10, 40, 40).
 696   canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
 697                        3,
 698                        points,
 699                        points,
 700                        colors,
 701                        NULL,
 702                        indecies,
 703                        3,
 704                        second_paint);
 705
 706   canvas->restore();
 707
 708   points[0].set(50, 55);
 709   points[1].set(50, 55);
 710   points[2].set(200, 200);
 711   // (50, 55, 150, 145).
 712   canvas->drawVertices(SkCanvas::kTriangles_VertexMode,
 713                        3,
 714                        points,
 715                        points,
 716                        colors,
 717                        NULL,
 718                        indecies,
 719                        3,
 720                        third_paint);
 721
 722   StopRecording(picture.get(), canvas);
 723
 724   std::vector<skia::LazyPixelRefUtils::PositionLazyPixelRef> pixel_refs;
 725   skia::LazyPixelRefUtils::GatherPixelRefs(picture.get(), &pixel_refs);
 726
 727   EXPECT_EQ(3u, pixel_refs.size());
 728   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 10, 90, 90),
 729                        gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect));
 730   EXPECT_FLOAT_RECT_EQ(gfx::RectF(10, 10, 40, 40),
 731                        gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect));
 732   EXPECT_FLOAT_RECT_EQ(gfx::RectF(50, 55, 150, 145),
 733                        gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect));
 734 }
 735
 736 }  // namespace skia