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- // Copyright (c) 2012 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 "components/favicon_base/select_favicon_frames.h"
- #include <stddef.h>
- #include "build/build_config.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "third_party/skia/include/core/SkBitmap.h"
- #include "third_party/skia/include/core/SkColor.h"
- #include "ui/base/layout.h"
- #include "ui/gfx/geometry/size.h"
- #include "ui/gfx/image/image_skia.h"
- #include "ui/gfx/image/image_skia_rep.h"
- using std::vector;
- namespace {
- const ui::ResourceScaleFactor FaviconScaleFactor1x[] = {
- ui::k100Percent,
- };
- const ui::ResourceScaleFactor FaviconScaleFactor1xAnd2x[] = {
- ui::k100Percent,
- ui::k200Percent,
- };
- #define SCOPED_FAVICON_SCALE_FACTOR(list) \
- ui::test::ScopedSetSupportedResourceScaleFactors scoped( \
- std::vector<ui::ResourceScaleFactor>(list, list + std::size(list)))
- #define SCOPED_FAVICON_SCALE_FACTOR_1X \
- SCOPED_FAVICON_SCALE_FACTOR(FaviconScaleFactor1x)
- #define SCOPED_FAVICON_SCALE_FACTOR_1XAND2X \
- SCOPED_FAVICON_SCALE_FACTOR(FaviconScaleFactor1xAnd2x)
- // Return gfx::Size vector with the pixel sizes of |bitmaps|.
- vector<gfx::Size> SizesFromBitmaps(const vector<SkBitmap>& bitmaps) {
- vector<gfx::Size> sizes;
- for (size_t i = 0; i < bitmaps.size(); ++i)
- sizes.push_back(gfx::Size(bitmaps[i].width(), bitmaps[i].height()));
- return sizes;
- }
- SkBitmap MakeBitmap(SkColor color, int w, int h) {
- SkBitmap bitmap;
- bitmap.allocN32Pixels(w, h);
- bitmap.eraseColor(color);
- return bitmap;
- }
- SkColor GetColor(const gfx::ImageSkia& image, float scale,
- int x = -1, int y = -1) {
- const SkBitmap& bitmap = image.GetRepresentation(scale).GetBitmap();
- if (x == -1)
- x = bitmap.width() / 2;
- if (y == -1)
- y = bitmap.width() / 2;
- SkColor color = bitmap.getColor(x, y);
- return color;
- }
- SkColor GetColor1x(const gfx::ImageSkia& image) {
- return GetColor(image, 1.0f);
- }
- SkColor GetColor2x(const gfx::ImageSkia& image) {
- return GetColor(image, 2.0f);
- }
- TEST(SelectFaviconFramesTest, ZeroSizePicksLargest) {
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorRED, 16, 16));
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 48, 48));
- bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 32, 32));
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 0, nullptr);
- EXPECT_EQ(1u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- EXPECT_EQ(48, image.width());
- EXPECT_EQ(48, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- }
- TEST(SelectFaviconFramesTest, _16From16) {
- SCOPED_FAVICON_SCALE_FACTOR_1X;
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorRED, 15, 15));
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 17, 17));
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 16, nullptr);
- image.EnsureRepsForSupportedScales();
- EXPECT_EQ(1u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- EXPECT_EQ(16, image.width());
- EXPECT_EQ(16, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- #if !BUILDFLAG(IS_IOS)
- const gfx::ImageSkiaRep& rep = image.GetRepresentation(1.5f);
- EXPECT_EQ(1.5f, rep.scale());
- EXPECT_EQ(16, rep.GetWidth());
- EXPECT_EQ(16, rep.GetHeight());
- EXPECT_EQ(24, rep.pixel_width());
- EXPECT_EQ(24, rep.pixel_height());
- EXPECT_EQ(2u, image.image_reps().size());
- #endif
- }
- TEST(SelectFaviconFramesTest, _16From17) {
- SCOPED_FAVICON_SCALE_FACTOR_1X;
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorRED, 15, 15));
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 17, 17));
- // Should resample from the bigger candidate.
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 16, nullptr);
- image.EnsureRepsForSupportedScales();
- EXPECT_EQ(1u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- EXPECT_EQ(16, image.width());
- EXPECT_EQ(16, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- }
- TEST(SelectFaviconFramesTest, _16From15) {
- SCOPED_FAVICON_SCALE_FACTOR_1X;
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorRED, 14, 14));
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 15, 15));
- // If nothing else is available, should resample from the next smaller
- // candidate.
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 16, nullptr);
- image.EnsureRepsForSupportedScales();
- EXPECT_EQ(1u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- EXPECT_EQ(16, image.width());
- EXPECT_EQ(16, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- }
- TEST(SelectFaviconFramesTest, _16From16_Scale2x_32_From_16) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 16, nullptr);
- image.EnsureRepsForSupportedScales();
- EXPECT_EQ(2u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- ASSERT_TRUE(image.HasRepresentation(2.0f));
- EXPECT_EQ(16, image.width());
- EXPECT_EQ(16, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- EXPECT_EQ(SK_ColorGREEN, GetColor2x(image));
- }
- TEST(SelectFaviconFramesTest, _16From16_Scale2x_32_From_32) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- vector<SkBitmap> bitmaps;
- bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 32, 32));
- gfx::ImageSkia image =
- CreateFaviconImageSkia(bitmaps, SizesFromBitmaps(bitmaps), 16, nullptr);
- image.EnsureRepsForSupportedScales();
- EXPECT_EQ(2u, image.image_reps().size());
- ASSERT_TRUE(image.HasRepresentation(1.0f));
- ASSERT_TRUE(image.HasRepresentation(2.0f));
- EXPECT_EQ(16, image.width());
- EXPECT_EQ(16, image.height());
- EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
- EXPECT_EQ(SK_ColorBLUE, GetColor2x(image));
- #if !BUILDFLAG(IS_IOS)
- const gfx::ImageSkiaRep& rep = image.GetRepresentation(1.5f);
- EXPECT_EQ(1.5f, rep.scale());
- EXPECT_EQ(16, rep.GetWidth());
- EXPECT_EQ(16, rep.GetHeight());
- EXPECT_EQ(24, rep.pixel_width());
- EXPECT_EQ(24, rep.pixel_height());
- EXPECT_EQ(3u, image.image_reps().size());
- #endif
- }
- TEST(SelectFaviconFramesTest, ExactMatchBetterThanLargeBitmap) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- float score1;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 48, 48));
- CreateFaviconImageSkia(
- bitmaps1,
- SizesFromBitmaps(bitmaps1), 16, &score1);
- float score2;
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 32, 32));
- CreateFaviconImageSkia(bitmaps2,
- SizesFromBitmaps(bitmaps2), 16, &score2);
- EXPECT_GT(score2, score1);
- }
- TEST(SelectFaviconFramesTest, UpsampleABitBetterThanHugeBitmap) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- float score1;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 128, 128));
- CreateFaviconImageSkia(bitmaps1,
- SizesFromBitmaps(bitmaps1), 16, &score1);
- float score2;
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 24, 24));
- CreateFaviconImageSkia(bitmaps2,
- SizesFromBitmaps(bitmaps2), 16, &score2);
- float score3;
- vector<SkBitmap> bitmaps3;
- bitmaps3.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- CreateFaviconImageSkia(bitmaps3,
- SizesFromBitmaps(bitmaps3), 16, &score3);
- float score4;
- vector<SkBitmap> bitmaps4;
- bitmaps4.push_back(MakeBitmap(SK_ColorGREEN, 15, 15));
- CreateFaviconImageSkia(bitmaps4,
- SizesFromBitmaps(bitmaps4), 16, &score4);
- EXPECT_GT(score2, score1);
- EXPECT_GT(score3, score1);
- EXPECT_GT(score4, score1);
- }
- TEST(SelectFaviconFramesTest, DownsamplingBetterThanUpsampling) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- float score1;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 8, 8));
- CreateFaviconImageSkia(bitmaps1,
- SizesFromBitmaps(bitmaps1), 16, &score1);
- float score2;
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 24, 24));
- CreateFaviconImageSkia(bitmaps2,
- SizesFromBitmaps(bitmaps2), 16, &score2);
- EXPECT_GT(score2, score1);
- }
- TEST(SelectFaviconFramesTest, DownsamplingLessIsBetter) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- float score1;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 34, 34));
- CreateFaviconImageSkia(bitmaps1,
- SizesFromBitmaps(bitmaps1), 16, &score1);
- float score2;
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 33, 33));
- CreateFaviconImageSkia(bitmaps2,
- SizesFromBitmaps(bitmaps2), 16, &score2);
- EXPECT_GT(score2, score1);
- }
- TEST(SelectFaviconFramesTest, UpsamplingLessIsBetter) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- float score1;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 8, 8));
- CreateFaviconImageSkia(bitmaps1,
- SizesFromBitmaps(bitmaps1), 16, &score1);
- float score2;
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 9, 9));
- CreateFaviconImageSkia(bitmaps2,
- SizesFromBitmaps(bitmaps2), 16, &score2);
- EXPECT_GT(score2, score1);
- }
- // Test that the score is determined by the |original_sizes| parameter, not the
- // |bitmaps| parameter to SelectFaviconFrames().
- TEST(SelectFaviconFramesTest, ScoreDeterminedByOriginalSizes) {
- SCOPED_FAVICON_SCALE_FACTOR_1XAND2X;
- vector<SkBitmap> bitmaps1;
- bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
- vector<gfx::Size> sizes1;
- sizes1.push_back(gfx::Size(256, 256));
- float score1;
- CreateFaviconImageSkia(bitmaps1, sizes1, 16, &score1);
- vector<SkBitmap> bitmaps2;
- bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 15, 15));
- vector<gfx::Size> sizes2;
- sizes2.push_back(gfx::Size(15, 15));
- float score2;
- CreateFaviconImageSkia(bitmaps2, sizes2, 16, &score2);
- EXPECT_GT(score2, score1);
- }
- } // namespace
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