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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "skia/ext/codec_utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/codec/SkCodec.h"
#include "third_party/skia/include/codec/SkPngDecoder.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkData.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkStream.h"
namespace skia {
namespace {
TEST(SkiaCodecUtils, EncodeSkPixmapAsPngAsSkDataSmokeTest) {
// Prepare a test `bitmap`.
SkBitmap bitmap;
bitmap.allocN32Pixels(10, 10);
bitmap.eraseColor(SK_ColorGREEN);
// Encode the `bitmap` into `png`.
sk_sp<SkData> png = EncodePngAsSkData(bitmap.pixmap());
ASSERT_TRUE(png);
// Decode the `png` into `roundtrip` bitmap.
SkBitmap roundtrip;
{
SkCodec::Result result;
std::unique_ptr<SkCodec> codec = SkPngDecoder::Decode(
std::make_unique<SkMemoryStream>(std::move(png)), &result);
ASSERT_TRUE(codec);
ASSERT_EQ(result, SkCodec::kSuccess);
roundtrip.allocN32Pixels(10, 10);
ASSERT_EQ(SkCodec::kSuccess, codec->getPixels(roundtrip.pixmap()));
}
// Smoke-test that the `roundtrip` bitmap has, well, round-tripped.
EXPECT_EQ(roundtrip.getColor(5, 5), SK_ColorGREEN);
}
TEST(SkiaCodecUtils, EncodeSkImageAsPngAsSkDataSmokeTest) {
// Prepare a test `bitmap` / `image`.
SkBitmap bitmap;
bitmap.allocN32Pixels(10, 10);
bitmap.eraseColor(SK_ColorGREEN);
sk_sp<SkImage> image = SkImages::RasterFromBitmap(bitmap);
ASSERT_TRUE(image);
// Encode the `image` into `png`.
sk_sp<SkData> png = EncodePngAsSkData(nullptr, image.get());
ASSERT_TRUE(png);
// Decode the `png` into `roundtrip` bitmap.
SkBitmap roundtrip;
{
SkCodec::Result result;
std::unique_ptr<SkCodec> codec = SkPngDecoder::Decode(
std::make_unique<SkMemoryStream>(std::move(png)), &result);
ASSERT_TRUE(codec);
ASSERT_EQ(result, SkCodec::kSuccess);
roundtrip.allocN32Pixels(10, 10);
ASSERT_EQ(SkCodec::kSuccess, codec->getPixels(roundtrip.pixmap()));
}
// Smoke-test that the `roundtrip` bitmap has, well, round-tripped.
EXPECT_EQ(roundtrip.getColor(5, 5), SK_ColorGREEN);
}
TEST(SkiaCodecUtils, EncodePngAsDataUriSmokeTest) {
// Prepare a test `bitmap`.
SkBitmap bitmap;
bitmap.allocN32Pixels(10, 10);
bitmap.eraseColor(SK_ColorGREEN);
// Encode the `bitmap` into a data `uri`.
std::string uri = EncodePngAsDataUri(bitmap.pixmap());
// Smoke test the `uri`. We don't verify exact equality to avoid depending in
// internal implementation details of the encoder.
EXPECT_THAT(uri, testing::StartsWith("data:image/png;"));
}
} // namespace
} // namespace skia
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