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Unified Diff: cc/resources/display_list_recording_source_unittest.cc

Issue 1045953002: Implement DisplayList GatherPixelRefs (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: add guard for GatherPixelRefs Created 5 years, 9 months ago
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Index: cc/resources/display_list_recording_source_unittest.cc
diff --git a/cc/resources/display_list_recording_source_unittest.cc b/cc/resources/display_list_recording_source_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9b7e7efe933c63f0967edb7c757ce9a88ff54a65
--- /dev/null
+++ b/cc/resources/display_list_recording_source_unittest.cc
@@ -0,0 +1,624 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
vmpstr 2015/03/31 17:10:31 nit 2015
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <vector>
+
+#include "cc/resources/display_list_raster_source.h"
+#include "cc/resources/display_list_recording_source.h"
+#include "cc/test/fake_content_layer_client.h"
+#include "cc/test/impl_side_painting_settings.h"
+#include "cc/test/skia_common.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace cc {
+namespace {
+
+// This class provides method for test to add bitmap and draw rect to content
+// layer client. This class also provides function to rerecord to generate a new
+// display list.
+class FakeDisplayListRecordingSource : public DisplayListRecordingSource {
+ public:
+ explicit FakeDisplayListRecordingSource(const gfx::Size& grid_cell_size)
+ : DisplayListRecordingSource(grid_cell_size) {}
+ ~FakeDisplayListRecordingSource() override {}
+
+ static scoped_ptr<FakeDisplayListRecordingSource> CreateRecordingSource(
+ const gfx::Rect& recorded_viewport) {
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source(
+ new FakeDisplayListRecordingSource(
+ ImplSidePaintingSettings().default_tile_grid_size));
+ recording_source->SetRecordedViewport(recorded_viewport);
+ return recording_source;
+ }
+
+ void SetRecordedViewport(const gfx::Rect& recorded_viewport) {
+ recorded_viewport_ = recorded_viewport;
+ }
+
+ void SetGridCellSize(const gfx::Size& grid_cell_size) {
+ grid_cell_size_ = grid_cell_size;
+ }
+
+ void RerecordDisplayList() {
+ ContentLayerClient::PaintingControlSetting painting_control =
+ ContentLayerClient::PAINTING_BEHAVIOR_NORMAL;
+ display_list_ = client_.PaintContentsToDisplayList(recorded_viewport_,
+ painting_control);
+ display_list_->set_layer_rect(recorded_viewport_);
+ display_list_->CreateAndCacheSkPicture();
+ display_list_->GatherPixelRefs(grid_cell_size_);
+ }
+
+ void add_draw_rect(const gfx::RectF& rect) {
+ client_.add_draw_rect(rect, default_paint_);
+ }
+
+ void add_draw_rect_with_paint(const gfx::RectF& rect, const SkPaint& paint) {
+ client_.add_draw_rect(rect, paint);
+ }
+
+ void add_draw_bitmap(const SkBitmap& bitmap, const gfx::Point& point) {
+ client_.add_draw_bitmap(bitmap, point, default_paint_);
+ }
+
+ void add_draw_bitmap_with_transform(const SkBitmap& bitmap,
+ const gfx::Transform& transform) {
+ client_.add_draw_bitmap_with_transform(bitmap, transform, default_paint_);
+ }
+
+ void add_draw_bitmap_with_paint(const SkBitmap& bitmap,
+ const gfx::Point& point,
+ const SkPaint& paint) {
+ client_.add_draw_bitmap(bitmap, point, paint);
+ }
+
+ void add_draw_bitmap_with_paint_and_transform(const SkBitmap& bitmap,
+ const gfx::Transform& transform,
+ const SkPaint& paint) {
+ client_.add_draw_bitmap_with_transform(bitmap, transform, paint);
+ }
+
+ void set_default_paint(const SkPaint& paint) { default_paint_ = paint; }
+
+ private:
+ FakeContentLayerClient client_;
+ SkPaint default_paint_;
+};
+
+TEST(DisplayListRecordingSourceTest, EmptyPixelRefs) {
+ gfx::Size grid_cell_size(128, 128);
+ gfx::Rect recorded_viewport(0, 0, 256, 256);
+
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source =
+ FakeDisplayListRecordingSource::CreateRecordingSource(recorded_viewport);
+ recording_source->SetGridCellSize(grid_cell_size);
+ recording_source->RerecordDisplayList();
+
+ bool can_use_lcd_text = true;
+ scoped_refptr<DisplayListRasterSource> raster_source =
+ DisplayListRasterSource::CreateFromDisplayListRecordingSource(
+ recording_source.get(), can_use_lcd_text);
+
+ // Tile sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 1.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 2.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 64, 64), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ // Shifted tile sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 140, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(280, 280, 256, 256), 2.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(70, 70, 64, 64), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ // Layer sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+}
+
+TEST(DisplayListRecordingSourceTest, NoDiscardablePixelRefs) {
+ gfx::Size grid_cell_size(128, 128);
+ gfx::Rect recorded_viewport(0, 0, 256, 256);
+
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source =
+ FakeDisplayListRecordingSource::CreateRecordingSource(recorded_viewport);
+ recording_source->SetGridCellSize(grid_cell_size);
+ SkPaint simple_paint;
+ simple_paint.setColor(SkColorSetARGB(255, 12, 23, 34));
+
+ SkBitmap non_discardable_bitmap;
+ CreateBitmap(gfx::Size(128, 128), "notdiscardable", &non_discardable_bitmap);
+
+ recording_source->add_draw_rect_with_paint(gfx::Rect(0, 0, 256, 256),
+ simple_paint);
+ recording_source->add_draw_rect_with_paint(gfx::Rect(128, 128, 512, 512),
+ simple_paint);
+ recording_source->add_draw_rect_with_paint(gfx::Rect(512, 0, 256, 256),
+ simple_paint);
+ recording_source->add_draw_rect_with_paint(gfx::Rect(0, 512, 256, 256),
+ simple_paint);
+ recording_source->add_draw_bitmap(non_discardable_bitmap, gfx::Point(128, 0));
+ recording_source->add_draw_bitmap(non_discardable_bitmap, gfx::Point(0, 128));
+ recording_source->add_draw_bitmap(non_discardable_bitmap,
+ gfx::Point(150, 150));
+ recording_source->RerecordDisplayList();
+
+ bool can_use_lcd_text = true;
+ scoped_refptr<DisplayListRasterSource> raster_source =
+ DisplayListRasterSource::CreateFromDisplayListRecordingSource(
+ recording_source.get(), can_use_lcd_text);
+
+ // Tile sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 1.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 2.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 64, 64), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ // Shifted tile sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 140, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(280, 280, 256, 256), 2.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(70, 70, 64, 64), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ // Layer sized iterators.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+}
+
+TEST(DisplayListRecordingSourceTest, DiscardablePixelRefs) {
+ gfx::Size grid_cell_size(128, 128);
+ gfx::Rect recorded_viewport(0, 0, 256, 256);
+
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source =
+ FakeDisplayListRecordingSource::CreateRecordingSource(recorded_viewport);
+ recording_source->SetGridCellSize(grid_cell_size);
+ SkBitmap discardable_bitmap[2][2];
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[0][0]);
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][0]);
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][1]);
+
+ // Discardable pixel refs are found in the following cells:
+ // |---|---|
+ // | x | |
+ // |---|---|
+ // | x | x |
+ // |---|---|
+ recording_source->add_draw_bitmap(discardable_bitmap[0][0], gfx::Point(0, 0));
+ recording_source->add_draw_bitmap(discardable_bitmap[1][0],
+ gfx::Point(0, 130));
+ recording_source->add_draw_bitmap(discardable_bitmap[1][1],
+ gfx::Point(140, 140));
+ recording_source->RerecordDisplayList();
+
+ bool can_use_lcd_text = true;
+ scoped_refptr<DisplayListRasterSource> raster_source =
+ DisplayListRasterSource::CreateFromDisplayListRecordingSource(
+ recording_source.get(), can_use_lcd_text);
+
+ // Tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 2.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 64, 64), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+
+ // Shifted tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 140, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(280, 280, 256, 256), 2.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(70, 70, 64, 64), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+
+ // Ensure there's no discardable pixel refs in the empty cell
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 0, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+
+ // Layer sized iterators. These should find all 3 pixel refs.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+}
+
+TEST(DisplayListRecordingSourceTest, DiscardablePixelRefsWithTransform) {
+ gfx::Size grid_cell_size(128, 128);
+ gfx::Rect recorded_viewport(0, 0, 256, 256);
+
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source =
+ FakeDisplayListRecordingSource::CreateRecordingSource(recorded_viewport);
+ recording_source->SetGridCellSize(grid_cell_size);
+ SkBitmap discardable_bitmap[2][2];
+ gfx::Transform identity_transform;
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[0][0]);
+ // Translate transform is equivalent to moving using point.
+ gfx::Transform translate_transform;
+ translate_transform.Translate(0, 130);
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][0]);
+ // This moves the bitmap to center of viewport and rotate, this would make
+ // this bitmap in all four tile grids.
+ gfx::Transform rotate_transform;
+ rotate_transform.Translate(112, 112);
+ rotate_transform.Rotate(45);
+ CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][1]);
+
+ recording_source->add_draw_bitmap_with_transform(discardable_bitmap[0][0],
+ identity_transform);
+ recording_source->add_draw_bitmap_with_transform(discardable_bitmap[1][0],
+ translate_transform);
+ recording_source->add_draw_bitmap_with_transform(discardable_bitmap[1][1],
+ rotate_transform);
+ recording_source->RerecordDisplayList();
+
+ bool can_use_lcd_text = true;
+ scoped_refptr<DisplayListRasterSource> raster_source =
+ DisplayListRasterSource::CreateFromDisplayListRecordingSource(
+ recording_source.get(), can_use_lcd_text);
+
+ // Tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(2u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 2.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(2u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 64, 64), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(2u, pixel_refs.size());
+ }
+
+ // Shifted tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 140, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(280, 280, 256, 256), 2.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(70, 70, 64, 64), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+
+ // The rotated bitmap would still be in the top right tile.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(140, 0, 128, 128), 1.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+
+ // Layer sized iterators. These should find all 6 pixel refs, including 1
+ // pixel ref bitmap[0][0], 1 pixel ref for bitmap[1][0], and 4 pixel refs for
+ // bitmap[1][1].
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ // Top left tile with bitmap[0][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ // Top right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ // Bottom left tile with bitmap[1][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[3] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[4] == discardable_bitmap[1][1].pixelRef());
+ // Bottom right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[5] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(6u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ // Top left tile with bitmap[0][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ // Top right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ // Bottom left tile with bitmap[1][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[3] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[4] == discardable_bitmap[1][1].pixelRef());
+ // Bottom right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[5] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(6u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ // Top left tile with bitmap[0][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[1][1].pixelRef());
+ // Top right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ // Bottom left tile with bitmap[1][0] and bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[3] == discardable_bitmap[1][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[4] == discardable_bitmap[1][1].pixelRef());
+ // Bottom right tile with bitmap[1][1].
+ EXPECT_TRUE(pixel_refs[5] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(6u, pixel_refs.size());
+ }
+}
+
+TEST(DisplayListRecordingSourceTest, DiscardablePixelRefsBaseNonDiscardable) {
+ gfx::Size grid_cell_size(256, 256);
+ gfx::Rect recorded_viewport(0, 0, 512, 512);
+
+ scoped_ptr<FakeDisplayListRecordingSource> recording_source =
+ FakeDisplayListRecordingSource::CreateRecordingSource(recorded_viewport);
+ recording_source->SetGridCellSize(grid_cell_size);
+ SkBitmap non_discardable_bitmap;
+ CreateBitmap(gfx::Size(512, 512), "notdiscardable", &non_discardable_bitmap);
+
+ SkBitmap discardable_bitmap[2][2];
+ CreateBitmap(gfx::Size(128, 128), "discardable", &discardable_bitmap[0][0]);
+ CreateBitmap(gfx::Size(128, 128), "discardable", &discardable_bitmap[0][1]);
+ CreateBitmap(gfx::Size(128, 128), "discardable", &discardable_bitmap[1][1]);
+
+ // One large non-discardable bitmap covers the whole grid.
+ // Discardable pixel refs are found in the following cells:
+ // |---|---|
+ // | x | x |
+ // |---|---|
+ // | | x |
+ // |---|---|
+ recording_source->add_draw_bitmap(non_discardable_bitmap, gfx::Point(0, 0));
+ recording_source->add_draw_bitmap(discardable_bitmap[0][0], gfx::Point(0, 0));
+ recording_source->add_draw_bitmap(discardable_bitmap[0][1],
+ gfx::Point(260, 0));
+ recording_source->add_draw_bitmap(discardable_bitmap[1][1],
+ gfx::Point(260, 260));
+ recording_source->RerecordDisplayList();
+
+ bool can_use_lcd_text = true;
+ scoped_refptr<DisplayListRasterSource> raster_source =
+ DisplayListRasterSource::CreateFromDisplayListRecordingSource(
+ recording_source.get(), can_use_lcd_text);
+
+ // Tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ // Shifted tile sized iterators. These should find only one pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(260, 260, 256, 256), 1.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(520, 520, 512, 512), 2.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(130, 130, 128, 128), 0.5,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(1u, pixel_refs.size());
+ }
+ // Ensure there's no discardable pixel refs in the empty cell
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 256, 256, 256), 1.0,
+ &pixel_refs);
+ EXPECT_TRUE(pixel_refs.empty());
+ }
+ // Layer sized iterators. These should find three pixel ref.
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 1.0, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[0][1].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 1024, 1024), 2.0,
+ &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[0][1].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+ {
+ std::vector<SkPixelRef*> pixel_refs;
+ raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 0.5, &pixel_refs);
+ EXPECT_FALSE(pixel_refs.empty());
+ EXPECT_TRUE(pixel_refs[0] == discardable_bitmap[0][0].pixelRef());
+ EXPECT_TRUE(pixel_refs[1] == discardable_bitmap[0][1].pixelRef());
+ EXPECT_TRUE(pixel_refs[2] == discardable_bitmap[1][1].pixelRef());
+ EXPECT_EQ(3u, pixel_refs.size());
+ }
+}
+
+} // namespace
+} // namespace cc
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