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// Copyright 2017 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 <utility>
#include <vector>
#include "base/macros.h"
#include "base/test/task_environment.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image_skia_operations.h"
#include "ui/gfx/image/image_skia_source.h"
#include "ui/gfx/image/image_unittest_util.h"
#include "ui/gfx/image/mojom/image_skia_mojom_traits.h"
#include "ui/gfx/image/mojom/image_traits_test_service.mojom.h"
namespace gfx {
namespace {
// A test ImageSkiaSource that creates an ImageSkiaRep for any scale.
class TestImageSkiaSource : public ImageSkiaSource {
public:
explicit TestImageSkiaSource(const gfx::Size& dip_size)
: dip_size_(dip_size) {}
~TestImageSkiaSource() override = default;
// ImageSkiaSource:
ImageSkiaRep GetImageForScale(float scale) override {
return ImageSkiaRep(ScaleToCeiledSize(dip_size_, scale), scale);
}
private:
const gfx::Size dip_size_;
DISALLOW_COPY_AND_ASSIGN(TestImageSkiaSource);
};
// Revisit this after Deserialize(Serialize()) API works with handles.
class ImageTraitsTest : public testing::Test,
public mojom::ImageTraitsTestService {
public:
ImageTraitsTest() = default;
// testing::Test:
void SetUp() override {
receivers_.Add(this, service_.BindNewPipeAndPassReceiver());
}
mojo::Remote<mojom::ImageTraitsTestService>& service() { return service_; }
private:
// mojom::ImageTraitsTestService:
void EchoImageSkiaRep(const ImageSkiaRep& in,
EchoImageSkiaRepCallback callback) override {
std::move(callback).Run(in);
}
void EchoImageSkia(const ImageSkia& in,
EchoImageSkiaCallback callback) override {
std::move(callback).Run(in);
}
base::test::TaskEnvironment task_environment_;
mojo::ReceiverSet<ImageTraitsTestService> receivers_;
mojo::Remote<mojom::ImageTraitsTestService> service_;
DISALLOW_COPY_AND_ASSIGN(ImageTraitsTest);
};
} // namespace
TEST_F(ImageTraitsTest, NullImageSkiaRep) {
ImageSkiaRep null_rep;
ASSERT_TRUE(null_rep.is_null());
ImageSkiaRep output(gfx::Size(1, 1), 1.0f);
ASSERT_FALSE(output.is_null());
service()->EchoImageSkiaRep(null_rep, &output);
EXPECT_TRUE(output.is_null());
}
TEST_F(ImageTraitsTest, EmptyImageSkiaRep) {
SkBitmap empty_bitmap;
empty_bitmap.allocN32Pixels(0, 0);
// Empty SkBitmap is not null.
EXPECT_FALSE(empty_bitmap.isNull());
EXPECT_TRUE(empty_bitmap.drawsNothing());
ImageSkiaRep empty_rep(empty_bitmap, 1.0f);
// ImageSkiaRep with empty bitmap is not null.
ASSERT_FALSE(empty_rep.is_null());
ImageSkiaRep output(gfx::Size(1, 1), 1.0f);
ASSERT_FALSE(output.is_null());
service()->EchoImageSkiaRep(empty_rep, &output);
EXPECT_TRUE(empty_rep.GetBitmap().drawsNothing());
EXPECT_TRUE(test::AreBitmapsEqual(empty_rep.GetBitmap(), output.GetBitmap()));
}
TEST_F(ImageTraitsTest, ImageSkiaRep) {
ImageSkiaRep image_rep(gfx::Size(2, 4), 2.0f);
ImageSkiaRep output;
service()->EchoImageSkiaRep(image_rep, &output);
EXPECT_FALSE(output.is_null());
EXPECT_EQ(image_rep.scale(), output.scale());
EXPECT_TRUE(test::AreBitmapsEqual(image_rep.GetBitmap(), output.GetBitmap()));
}
TEST_F(ImageTraitsTest, UnscaledImageSkiaRep) {
ImageSkiaRep image_rep(gfx::Size(2, 4), 0.0f);
ASSERT_TRUE(image_rep.unscaled());
ImageSkiaRep output(gfx::Size(1, 1), 1.0f);
EXPECT_FALSE(output.unscaled());
service()->EchoImageSkiaRep(image_rep, &output);
EXPECT_TRUE(output.unscaled());
EXPECT_TRUE(test::AreBitmapsEqual(image_rep.GetBitmap(), output.GetBitmap()));
}
TEST_F(ImageTraitsTest, NullImageSkia) {
ImageSkia null_image;
ASSERT_TRUE(null_image.isNull());
ImageSkia output(ImageSkiaRep(gfx::Size(1, 1), 1.0f));
ASSERT_FALSE(output.isNull());
service()->EchoImageSkia(null_image, &output);
EXPECT_TRUE(output.isNull());
}
TEST_F(ImageTraitsTest, ImageSkiaRepsAreCreatedAsNeeded) {
const gfx::Size kSize(1, 2);
ImageSkia image(std::make_unique<TestImageSkiaSource>(kSize), kSize);
EXPECT_FALSE(image.isNull());
EXPECT_TRUE(image.image_reps().empty());
ImageSkia output;
EXPECT_TRUE(output.isNull());
service()->EchoImageSkia(image, &output);
EXPECT_FALSE(image.image_reps().empty());
EXPECT_FALSE(output.isNull());
}
TEST_F(ImageTraitsTest, ImageSkia) {
const gfx::Size kSize(1, 2);
ImageSkia image(std::make_unique<TestImageSkiaSource>(kSize), kSize);
image.GetRepresentation(1.0f);
image.GetRepresentation(2.0f);
ImageSkia output;
service()->EchoImageSkia(image, &output);
EXPECT_TRUE(test::AreImagesEqual(Image(output), Image(image)));
}
TEST_F(ImageTraitsTest, EmptyRepPreserved) {
const gfx::Size kSize(1, 2);
ImageSkia image(std::make_unique<TestImageSkiaSource>(kSize), kSize);
image.GetRepresentation(1.0f);
SkBitmap empty_bitmap;
empty_bitmap.allocN32Pixels(0, 0);
image.AddRepresentation(ImageSkiaRep(empty_bitmap, 2.0f));
ImageSkia output;
service()->EchoImageSkia(image, &output);
EXPECT_TRUE(test::AreImagesEqual(Image(output), Image(image)));
}
TEST_F(ImageTraitsTest, ImageSkiaWithOperations) {
const gfx::Size kSize(32, 32);
ImageSkia image(std::make_unique<TestImageSkiaSource>(kSize), kSize);
const gfx::Size kNewSize(16, 16);
ImageSkia resized = ImageSkiaOperations::CreateResizedImage(
image, skia::ImageOperations::RESIZE_BEST, kNewSize);
resized.GetRepresentation(1.0f);
resized.GetRepresentation(2.0f);
ImageSkia output;
service()->EchoImageSkia(resized, &output);
EXPECT_TRUE(test::AreImagesEqual(Image(output), Image(resized)));
}
} // namespace gfx
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