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Unified Diff: cc/resources/pixel_ref_map_unittest.cc

Issue 1001833005: Update from https://crrev.com/320343 (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Supress Created 5 years, 9 months ago
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Index: cc/resources/pixel_ref_map_unittest.cc
diff --git a/cc/resources/pixel_ref_map_unittest.cc b/cc/resources/pixel_ref_map_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4c40336bccbb601945366ce2cf80ebe89f4ff509
--- /dev/null
+++ b/cc/resources/pixel_ref_map_unittest.cc
@@ -0,0 +1,292 @@
+// Copyright 2015 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/resources/pixel_ref_map.h"
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "cc/resources/picture.h"
+#include "cc/test/fake_content_layer_client.h"
+#include "cc/test/skia_common.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SkGraphics.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/skia_util.h"
+
+namespace cc {
+namespace {
+
+TEST(PixelRefMapTest, PixelRefMapIterator) {
+ gfx::Rect layer_rect(2048, 2048);
+
+ gfx::Size tile_grid_size(512, 512);
+
+ FakeContentLayerClient content_layer_client;
+
+ // Discardable pixel refs are found in the following grids:
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ SkBitmap discardable_bitmap[4][4];
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ if ((x + y) & 1) {
+ CreateBitmap(gfx::Size(500, 500), "discardable",
+ &discardable_bitmap[y][x]);
+ SkPaint paint;
+ content_layer_client.add_draw_bitmap(
+ discardable_bitmap[y][x], gfx::Point(x * 512 + 6, y * 512 + 6),
+ paint);
+ }
+ }
+ }
+
+ scoped_refptr<Picture> picture =
+ Picture::Create(layer_rect, &content_layer_client, tile_grid_size, true,
+ RecordingSource::RECORD_NORMALLY);
+
+ // Default iterator does not have any pixel refs.
+ {
+ PixelRefMap::Iterator iterator;
+ EXPECT_FALSE(iterator);
+ }
+
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ PixelRefMap::Iterator iterator(gfx::Rect(x * 512, y * 512, 500, 500),
+ picture.get());
+ if ((x + y) & 1) {
+ EXPECT_TRUE(iterator) << x << " " << y;
+ EXPECT_TRUE(*iterator == discardable_bitmap[y][x].pixelRef())
+ << x << " " << y;
+ EXPECT_FALSE(++iterator) << x << " " << y;
+ } else {
+ EXPECT_FALSE(iterator) << x << " " << y;
+ }
+ }
+ }
+ // Capture 4 pixel refs.
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(512, 512, 2048, 2048),
+ picture.get());
+ EXPECT_TRUE(iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[1][2].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][1].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++iterator);
+ }
+
+ // Copy test.
+ PixelRefMap::Iterator iterator(gfx::Rect(512, 512, 2048, 2048),
+ picture.get());
+ EXPECT_TRUE(iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[1][2].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][1].pixelRef());
+
+ // copy now points to the same spot as iterator,
+ // but both can be incremented independently.
+ PixelRefMap::Iterator copy = iterator;
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++iterator);
+
+ EXPECT_TRUE(copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[2][1].pixelRef());
+ EXPECT_TRUE(++copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++copy);
+}
+
+TEST(PixelRefMapTest, PixelRefMapIteratorNonZeroLayer) {
+ gfx::Rect layer_rect(1024, 0, 2048, 2048);
+
+ gfx::Size tile_grid_size(512, 512);
+
+ FakeContentLayerClient content_layer_client;
+
+ // Discardable pixel refs are found in the following grids:
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ SkBitmap discardable_bitmap[4][4];
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ if ((x + y) & 1) {
+ CreateBitmap(gfx::Size(500, 500), "discardable",
+ &discardable_bitmap[y][x]);
+ SkPaint paint;
+ content_layer_client.add_draw_bitmap(
+ discardable_bitmap[y][x],
+ gfx::Point(1024 + x * 512 + 6, y * 512 + 6), paint);
+ }
+ }
+ }
+
+ scoped_refptr<Picture> picture =
+ Picture::Create(layer_rect, &content_layer_client, tile_grid_size, true,
+ RecordingSource::RECORD_NORMALLY);
+
+ // Default iterator does not have any pixel refs.
+ {
+ PixelRefMap::Iterator iterator;
+ EXPECT_FALSE(iterator);
+ }
+
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ PixelRefMap::Iterator iterator(
+ gfx::Rect(1024 + x * 512, y * 512, 500, 500), picture.get());
+ if ((x + y) & 1) {
+ EXPECT_TRUE(iterator) << x << " " << y;
+ EXPECT_TRUE(*iterator == discardable_bitmap[y][x].pixelRef());
+ EXPECT_FALSE(++iterator) << x << " " << y;
+ } else {
+ EXPECT_FALSE(iterator) << x << " " << y;
+ }
+ }
+ }
+ // Capture 4 pixel refs.
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(1024 + 512, 512, 2048, 2048),
+ picture.get());
+ EXPECT_TRUE(iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[1][2].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][1].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++iterator);
+ }
+
+ // Copy test.
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(1024 + 512, 512, 2048, 2048),
+ picture.get());
+ EXPECT_TRUE(iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[1][2].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][1].pixelRef());
+
+ // copy now points to the same spot as iterator,
+ // but both can be incremented independently.
+ PixelRefMap::Iterator copy = iterator;
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++iterator);
+ EXPECT_TRUE(*iterator == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++iterator);
+
+ EXPECT_TRUE(copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[2][1].pixelRef());
+ EXPECT_TRUE(++copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[2][3].pixelRef());
+ EXPECT_TRUE(++copy);
+ EXPECT_TRUE(*copy == discardable_bitmap[3][2].pixelRef());
+ EXPECT_FALSE(++copy);
+ }
+
+ // Non intersecting rects
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(0, 0, 1000, 1000), picture.get());
+ EXPECT_FALSE(iterator);
+ }
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(3500, 0, 1000, 1000),
+ picture.get());
+ EXPECT_FALSE(iterator);
+ }
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(0, 1100, 1000, 1000),
+ picture.get());
+ EXPECT_FALSE(iterator);
+ }
+ {
+ PixelRefMap::Iterator iterator(gfx::Rect(3500, 1100, 1000, 1000),
+ picture.get());
+ EXPECT_FALSE(iterator);
+ }
+}
+
+TEST(PixelRefMapTest, PixelRefMapIteratorOnePixelQuery) {
+ gfx::Rect layer_rect(2048, 2048);
+
+ gfx::Size tile_grid_size(512, 512);
+
+ FakeContentLayerClient content_layer_client;
+
+ // Discardable pixel refs are found in the following grids:
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ // | | x | | x |
+ // |---|---|---|---|
+ // | x | | x | |
+ // |---|---|---|---|
+ SkBitmap discardable_bitmap[4][4];
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ if ((x + y) & 1) {
+ CreateBitmap(gfx::Size(500, 500), "discardable",
+ &discardable_bitmap[y][x]);
+ SkPaint paint;
+ content_layer_client.add_draw_bitmap(
+ discardable_bitmap[y][x], gfx::Point(x * 512 + 6, y * 512 + 6),
+ paint);
+ }
+ }
+ }
+
+ scoped_refptr<Picture> picture =
+ Picture::Create(layer_rect, &content_layer_client, tile_grid_size, true,
+ RecordingSource::RECORD_NORMALLY);
+
+ // Default iterator does not have any pixel refs.
+ {
+ PixelRefMap::Iterator iterator;
+ EXPECT_FALSE(iterator);
+ }
+
+ for (int y = 0; y < 4; ++y) {
+ for (int x = 0; x < 4; ++x) {
+ PixelRefMap::Iterator iterator(gfx::Rect(x * 512, y * 512 + 256, 1, 1),
+ picture.get());
+ if ((x + y) & 1) {
+ EXPECT_TRUE(iterator) << x << " " << y;
+ EXPECT_TRUE(*iterator == discardable_bitmap[y][x].pixelRef());
+ EXPECT_FALSE(++iterator) << x << " " << y;
+ } else {
+ EXPECT_FALSE(iterator) << x << " " << y;
+ }
+ }
+ }
+}
+
+} // namespace
+} // namespace cc
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