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// Copyright 2020 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/skia_utils_base.h"
#include "base/containers/span.h"
#include "base/strings/string_view_util.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 "third_party/skia/include/core/SkData.h"
#include "third_party/skia/include/core/SkImageInfo.h"
namespace skia {
namespace {
#define EXPECT_EQ_BITMAP(a, b) \
do { \
EXPECT_EQ(a.pixmap().addr(), b.pixmap().addr()); \
EXPECT_EQ(a.pixmap().rowBytes(), b.pixmap().rowBytes()); \
EXPECT_EQ(a.pixmap().info(), b.pixmap().info()); \
} while (false)
TEST(SkiaUtilsBase, ConvertNullToN32) {
SkBitmap bitmap;
SkBitmap out;
EXPECT_TRUE(SkBitmapToN32OpaqueOrPremul(bitmap, &out));
// Returned a copy of the input bitmap.
EXPECT_EQ_BITMAP(bitmap, out);
}
TEST(SkiaUtilsBase, ConvertValidToN32) {
SkBitmap bitmap;
bitmap.allocN32Pixels(10, 12);
SkBitmap out;
EXPECT_TRUE(SkBitmapToN32OpaqueOrPremul(bitmap, &out));
// Returned a copy of the input bitmap.
EXPECT_EQ_BITMAP(bitmap, out);
}
TEST(SkiaUtilsBase, ConvertWeirdStrideToN32) {
int width = 10;
int height = 12;
SkBitmap bitmap;
// Stride is > 4 * width.
bitmap.allocPixels(SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType),
width * 4 + 4);
SkBitmap out;
EXPECT_TRUE(SkBitmapToN32OpaqueOrPremul(bitmap, &out));
// The stride was converted.
EXPECT_NE(bitmap.rowBytes(), out.rowBytes());
EXPECT_EQ(out.rowBytes(), width * 4u);
}
TEST(SkiaUtilsBase, ConvertWeirdFormatToN32) {
int width = 10;
int height = 12;
// A format smaller than N32.
{
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeA8(width, height));
SkBitmap out;
EXPECT_TRUE(SkBitmapToN32OpaqueOrPremul(bitmap, &out));
// The format was converted.
EXPECT_NE(bitmap.rowBytes(), out.rowBytes());
EXPECT_NE(bitmap.info().colorType(), out.info().colorType());
EXPECT_EQ(out.rowBytes(), width * 4u);
EXPECT_EQ(out.info().colorType(), kN32_SkColorType);
}
// A format larger than N32.
{
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::Make(width, height, kRGBA_F16_SkColorType,
kPremul_SkAlphaType));
SkBitmap out;
EXPECT_TRUE(SkBitmapToN32OpaqueOrPremul(bitmap, &out));
// The format was converted.
EXPECT_NE(bitmap.rowBytes(), out.rowBytes());
EXPECT_NE(bitmap.info().colorType(), out.info().colorType());
EXPECT_EQ(out.rowBytes(), width * 4u);
EXPECT_EQ(out.info().colorType(), kN32_SkColorType);
}
}
TEST(SkiaUtilsBase, ConvertSkColorToHexString) {
EXPECT_EQ(SkColorToHexString(SK_ColorBLUE), "#0000FF");
EXPECT_EQ(SkColorToHexString(SK_ColorRED), "#FF0000");
EXPECT_EQ(SkColorToHexString(SK_ColorGREEN), "#00FF00");
EXPECT_EQ(SkColorToHexString(SK_ColorWHITE), "#FFFFFF");
}
TEST(SkiaUtilsBase, ConvertSkDataToByteSpan) {
sk_sp<SkData> sk_data = SkData::MakeWithCString("foobar");
base::span<const uint8_t> span = as_byte_span(*sk_data);
EXPECT_EQ(span.size(), 6u /* "foobar" */ + 1u /* NUL character */);
EXPECT_EQ(0, span[6]);
EXPECT_EQ("foobar", base::as_string_view(span.first(6u)));
}
} // namespace
} // namespace skia
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