Raster display item lists via a visual rect RTree.

cc/playback/display_item_list_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/playback/display_item_list.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 119 matching lines @@
     settings.ToProtobuf(&proto);
     DisplayItemListSettings deserialized(proto);
     EXPECT_EQ(settings.use_cached_picture, deserialized.use_cached_picture);
   }
 }
 
 TEST(DisplayItemListTest, SerializeSingleDrawingItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SerializeClipItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   // Build the ClipDisplayItem.
   gfx::Rect clip_rect(6, 6, 1, 1);
   std::vector<SkRRect> rrects;
   rrects.push_back(SkRRect::MakeOval(SkRect::MakeXYWH(5.f, 5.f, 4.f, 4.f)));
   list->CreateAndAppendItem<ClipDisplayItem>(kVisualRect, clip_rect, rrects,
                                              true);
 
   // Build the second DrawingDisplayItem.
   AppendSecondSerializationTestPicture(list, layer_size);
 
   // Build the EndClipDisplayItem.
   list->CreateAndAppendItem<EndClipDisplayItem>(kVisualRect);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SerializeClipPathItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   // Build the ClipPathDisplayItem.
   SkPath path;
   path.addCircle(5.f, 5.f, 2.f, SkPath::Direction::kCW_Direction);
   list->CreateAndAppendItem<ClipPathDisplayItem>(
       kVisualRect, path, SkRegion::Op::kReplace_Op, false);
 
   // Build the second DrawingDisplayItem.
   AppendSecondSerializationTestPicture(list, layer_size);
 
   // Build the EndClipPathDisplayItem.
   list->CreateAndAppendItem<EndClipPathDisplayItem>(kVisualRect);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SerializeCompositingItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   // Build the CompositingDisplayItem.
   list->CreateAndAppendItem<CompositingDisplayItem>(
       kVisualRect, 150, SkXfermode::Mode::kDst_Mode, nullptr,
       SkColorMatrixFilter::MakeLightingFilter(SK_ColorRED, SK_ColorGREEN),
       false);
 
   // Build the second DrawingDisplayItem.
   AppendSecondSerializationTestPicture(list, layer_size);
 
   // Build the EndCompositingDisplayItem.
   list->CreateAndAppendItem<EndCompositingDisplayItem>(kVisualRect);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SerializeFloatClipItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   // Build the FloatClipDisplayItem.
   gfx::RectF clip_rect(6.f, 6.f, 1.f, 1.f);
   list->CreateAndAppendItem<FloatClipDisplayItem>(kVisualRect, clip_rect);
 
   // Build the second DrawingDisplayItem.
   AppendSecondSerializationTestPicture(list, layer_size);
 
   // Build the EndFloatClipDisplayItem.
   list->CreateAndAppendItem<EndFloatClipDisplayItem>(kVisualRect);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SerializeTransformItem) {
   gfx::Size layer_size(10, 10);
 
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(layer_size), settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
+  list->SetRetainVisualRectsForTesting(true);
 
   // Build the DrawingDisplayItem.
   AppendFirstSerializationTestPicture(list, layer_size);
 
   // Build the TransformDisplayItem.
   gfx::Transform transform;
   transform.Scale(1.25f, 1.25f);
   transform.Translate(-1.f, -1.f);
   list->CreateAndAppendItem<TransformDisplayItem>(kVisualRect, transform);
 
   // Build the second DrawingDisplayItem.
   AppendSecondSerializationTestPicture(list, layer_size);
 
   // Build the EndTransformDisplayItem.
   list->CreateAndAppendItem<EndTransformDisplayItem>(kVisualRect);
 
   ValidateDisplayItemListSerialization(layer_size, list);
 }
 
 TEST(DisplayItemListTest, SingleDrawingItem) {
   gfx::Rect layer_rect(100, 100);
   SkPictureRecorder recorder;
   sk_sp<SkCanvas> canvas;
   SkPaint blue_paint;
   blue_paint.setColor(SK_ColorBLUE);
   SkPaint red_paint;
   red_paint.setColor(SK_ColorRED);
   unsigned char pixels[4 * 100 * 100] = {0};
   DisplayItemListSettings settings;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(layer_rect, settings);
+  settings.use_cached_picture = true;
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
 
   gfx::PointF offset(8.f, 9.f);
   gfx::RectF recording_rect(offset, gfx::SizeF(layer_rect.size()));
   canvas =
       sk_ref_sp(recorder.beginRecording(gfx::RectFToSkRect(recording_rect)));
   canvas->translate(offset.x(), offset.y());
   canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
   canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
   list->CreateAndAppendItem<DrawingDisplayItem>(
       kVisualRect, recorder.finishRecordingAsPicture());
@@ skipping 21 matching lines @@
   gfx::Rect layer_rect(100, 100);
   SkPictureRecorder recorder;
   sk_sp<SkCanvas> canvas;
   SkPaint blue_paint;
   blue_paint.setColor(SK_ColorBLUE);
   SkPaint red_paint;
   red_paint.setColor(SK_ColorRED);
   unsigned char pixels[4 * 100 * 100] = {0};
   DisplayItemListSettings settings;
   settings.use_cached_picture = true;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(layer_rect, settings);
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
 
   gfx::PointF first_offset(8.f, 9.f);
   gfx::RectF first_recording_rect(first_offset, gfx::SizeF(layer_rect.size()));
   canvas = sk_ref_sp(
       recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect)));
   canvas->translate(first_offset.x(), first_offset.y());
   canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
   list->CreateAndAppendItem<DrawingDisplayItem>(
       kVisualRect, recorder.finishRecordingAsPicture());
 
@@ skipping 38 matching lines @@
   gfx::Rect layer_rect(100, 100);
   SkPictureRecorder recorder;
   sk_sp<SkCanvas> canvas;
   SkPaint blue_paint;
   blue_paint.setColor(SK_ColorBLUE);
   SkPaint red_paint;
   red_paint.setColor(SK_ColorRED);
   unsigned char pixels[4 * 100 * 100] = {0};
   DisplayItemListSettings settings;
   settings.use_cached_picture = true;
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(layer_rect, settings);
+  scoped_refptr<DisplayItemList> list = DisplayItemList::Create(settings);
 
   gfx::PointF first_offset(8.f, 9.f);
   gfx::RectF first_recording_rect(first_offset, gfx::SizeF(layer_rect.size()));
   canvas = sk_ref_sp(
       recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect)));
   canvas->translate(first_offset.x(), first_offset.y());
   canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
   list->CreateAndAppendItem<DrawingDisplayItem>(
       kVisualRect, recorder.finishRecordingAsPicture());
 
@@ skipping 31 matching lines @@
       50.f + second_offset.x(), 50.f + second_offset.y(),
       75.f + second_offset.x(), 75.f + second_offset.y(), blue_paint);
 
   EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
 }
 
 TEST(DisplayItemListTest, FilterItem) {
   gfx::Rect layer_rect(100, 100);
   FilterOperations filters;
   unsigned char pixels[4 * 100 * 100] = {0};
-  DisplayItemListSettings settings;
-  settings.use_cached_picture = true;
   scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(layer_rect, settings);
+      DisplayItemList::Create(DisplayItemListSettings());
 
   sk_sp<SkSurface> source_surface = SkSurface::MakeRasterN32Premul(50, 50);
   SkCanvas* source_canvas = source_surface->getCanvas();
   source_canvas->clear(SkColorSetRGB(128, 128, 128));
   sk_sp<SkImage> source_image = source_surface->makeImageSnapshot();
 
   // For most SkImageFilters, the |dst| bounds computed by computeFastBounds are
   // dependent on the provided |src| bounds. This means, for example, that
   // translating |src| results in a corresponding translation of |dst|. But this
   // is not the case for all SkImageFilters; for some of them (e.g.
@@ skipping 35 matching lines @@
   SkPaint blue_paint;
   blue_paint.setColor(SK_ColorBLUE);
   SkPaint red_paint;
   red_paint.setColor(SK_ColorRED);
   unsigned char pixels[4 * 100 * 100] = {0};
 
   gfx::PointF offset(8.f, 9.f);
   gfx::RectF recording_rect(offset, gfx::SizeF(layer_rect.size()));
 
   DisplayItemListSettings no_caching_settings;
-  no_caching_settings.use_cached_picture = false;
   scoped_refptr<DisplayItemList> list_without_caching =
-      DisplayItemList::Create(layer_rect, no_caching_settings);
+      DisplayItemList::Create(no_caching_settings);
 
   canvas =
       sk_ref_sp(recorder.beginRecording(gfx::RectFToSkRect(recording_rect)));
   canvas->translate(offset.x(), offset.y());
   canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint);
   canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint);
   sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
   list_without_caching->CreateAndAppendItem<DrawingDisplayItem>(kVisualRect,
                                                                 picture);
   list_without_caching->Finalize();
   DrawDisplayList(pixels, layer_rect, list_without_caching);
 
   unsigned char expected_pixels[4 * 100 * 100] = {0};
   DisplayItemListSettings caching_settings;
   caching_settings.use_cached_picture = true;
   scoped_refptr<DisplayItemList> list_with_caching =
-      DisplayItemList::Create(layer_rect, caching_settings);
+      DisplayItemList::Create(caching_settings);
   list_with_caching->CreateAndAppendItem<DrawingDisplayItem>(kVisualRect,
                                                              picture);
   list_with_caching->Finalize();
   DrawDisplayList(expected_pixels, layer_rect, list_with_caching);
 
   EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100));
 }
 
 TEST(DisplayItemListTest, ApproximateMemoryUsage) {
   const int kNumCommandsInTestSkPicture = 1000;
   scoped_refptr<DisplayItemList> list;
   size_t memory_usage;
 
   // Make an SkPicture whose size is known.
   gfx::Rect layer_rect(100, 100);
   SkPictureRecorder recorder;
   SkPaint blue_paint;
   blue_paint.setColor(SK_ColorBLUE);
   SkCanvas* canvas = recorder.beginRecording(gfx::RectToSkRect(layer_rect));
   for (int i = 0; i < kNumCommandsInTestSkPicture; i++)
     canvas->drawPaint(blue_paint);
   sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
   size_t picture_size = SkPictureUtils::ApproximateBytesUsed(picture.get());
   ASSERT_GE(picture_size, kNumCommandsInTestSkPicture * sizeof(blue_paint));
 
   // Using a cached picture, we should get about the right size.
   DisplayItemListSettings caching_settings;
   caching_settings.use_cached_picture = true;
-  list = DisplayItemList::Create(layer_rect, caching_settings);
+  list = DisplayItemList::Create(caching_settings);
   list->CreateAndAppendItem<DrawingDisplayItem>(kVisualRect, picture);
   list->Finalize();
   memory_usage = list->ApproximateMemoryUsage();
   EXPECT_GE(memory_usage, picture_size);
   EXPECT_LE(memory_usage, 2 * picture_size);
 
   // Using no cached picture, we should still get the right size.
   DisplayItemListSettings no_caching_settings;
   no_caching_settings.use_cached_picture = false;
-  list = DisplayItemList::Create(layer_rect, no_caching_settings);
+  list = DisplayItemList::Create(no_caching_settings);
   list->CreateAndAppendItem<DrawingDisplayItem>(kVisualRect, picture);
   list->Finalize();
   memory_usage = list->ApproximateMemoryUsage();
   EXPECT_GE(memory_usage, picture_size);
   EXPECT_LE(memory_usage, 2 * picture_size);
-
-  // To avoid double counting, we expect zero size to be computed if both the
-  // picture and items are retained (currently this only happens due to certain
-  // categories being traced).
-  list = new DisplayItemList(layer_rect, caching_settings, true);
-  list->CreateAndAppendItem<DrawingDisplayItem>(kVisualRect, picture);
-  list->Finalize();
-  memory_usage = list->ApproximateMemoryUsage();
-  EXPECT_EQ(static_cast<size_t>(0), memory_usage);
 }
 
-TEST(DisplayItemListTest, AsValueWithRectAndNoItems) {
+TEST(DisplayItemListTest, AsValueWithNoItems) {
   scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(1, 2, 8, 9), DisplayItemListSettings());
+      DisplayItemList::Create(DisplayItemListSettings());
+  list->SetRetainVisualRectsForTesting(true);
   list->Finalize();
 
   std::string value = list->AsValue(true)->ToString();
   EXPECT_NE(value.find("\"items\":[]"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[1,2,8,9]"), std::string::npos);
+  EXPECT_EQ(value.find("visualRect: [0,0 42x42]"), std::string::npos);
   EXPECT_NE(value.find("\"skp64\":"), std::string::npos);
 
   value = list->AsValue(false)->ToString();
   EXPECT_EQ(value.find("\"items\":"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[1,2,8,9]"), std::string::npos);
+  EXPECT_EQ(value.find("visualRect: [0,0 42x42]"), std::string::npos);
   EXPECT_NE(value.find("\"skp64\":"), std::string::npos);
 }
 
-TEST(DisplayItemListTest, AsValueWithRectAndItems) {
+TEST(DisplayItemListTest, AsValueWithItems) {
   gfx::Rect layer_rect = gfx::Rect(1, 2, 8, 9);
   scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(layer_rect, DisplayItemListSettings());
+      DisplayItemList::Create(DisplayItemListSettings());
+  list->SetRetainVisualRectsForTesting(true);
   gfx::Transform transform;
   transform.Translate(6.f, 7.f);
   list->CreateAndAppendItem<TransformDisplayItem>(kVisualRect, transform);
   AppendFirstSerializationTestPicture(list, layer_rect.size());
   list->CreateAndAppendItem<EndTransformDisplayItem>(kVisualRect);
   list->Finalize();
 
   std::string value = list->AsValue(true)->ToString();
   EXPECT_NE(value.find("{\"items\":[\"TransformDisplayItem"),
             std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[1,2,8,9]"), std::string::npos);
+  EXPECT_NE(value.find("visualRect: [0,0 42x42]"), std::string::npos);
   EXPECT_NE(value.find("\"skp64\":"), std::string::npos);
 
   value = list->AsValue(false)->ToString();
   EXPECT_EQ(value.find("{\"items\":[\"TransformDisplayItem"),
             std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[1,2,8,9]"), std::string::npos);
+  EXPECT_EQ(value.find("visualRect: [0,0 42x42]"), std::string::npos);
   EXPECT_NE(value.find("\"skp64\":"), std::string::npos);
 }
 
-TEST(DisplayItemListTest, AsValueWithEmptyRectAndNoItems) {
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(), DisplayItemListSettings());
-  list->Finalize();
-
-  std::string value = list->AsValue(true)->ToString();
-  EXPECT_NE(value.find("\"items\":[]"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[0,0,0,0]"), std::string::npos);
-  EXPECT_EQ(value.find("\"skp64\":"), std::string::npos);
-
-  value = list->AsValue(false)->ToString();
-  EXPECT_EQ(value.find("\"items\":"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[0,0,0,0]"), std::string::npos);
-  EXPECT_EQ(value.find("\"skp64\":"), std::string::npos);
-}
-
-TEST(DisplayItemListTest, AsValueWithEmptyRectAndItems) {
-  scoped_refptr<DisplayItemList> list =
-      DisplayItemList::Create(gfx::Rect(), DisplayItemListSettings());
-  gfx::Transform transform;
-  transform.Translate(6.f, 7.f);
-  list->CreateAndAppendItem<TransformDisplayItem>(kVisualRect, transform);
-  AppendFirstSerializationTestPicture(list, gfx::Size());
-  list->CreateAndAppendItem<EndTransformDisplayItem>(kVisualRect);
-  list->Finalize();
-
-  std::string value = list->AsValue(true)->ToString();
-  EXPECT_NE(value.find("\"items\":[\"TransformDisplayItem"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[0,0,0,0]"), std::string::npos);
-  // There should be one skp64 entry present associated with the test picture
-  // item, though the overall list has no skp64 as the layer rect is empty.
-  EXPECT_NE(value.find("\"skp64\":"), std::string::npos);
-
-  value = list->AsValue(false)->ToString();
-  EXPECT_EQ(value.find("\"items\":"), std::string::npos);
-  EXPECT_NE(value.find("\"layer_rect\":[0,0,0,0]"), std::string::npos);
-  // There should be no skp64 entry present as the items aren't included and the
-  // layer rect is empty.
-  EXPECT_EQ(value.find("\"skp64\":"), std::string::npos);
-}
-
 }  // namespace cc