| // Copyright (c) 2006-2008 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 <stdlib.h> |
| |
| #include "gfx/color_utils.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "third_party/skia/include/core/SkColorPriv.h" |
| |
| TEST(ColorUtils, SkColorToHSLRed) { |
| color_utils::HSL hsl = { 0, 0, 0 }; |
| color_utils::SkColorToHSL(SK_ColorRED, &hsl); |
| EXPECT_EQ(hsl.h, 0); |
| EXPECT_EQ(hsl.s, 1); |
| EXPECT_EQ(hsl.l, 0.5); |
| } |
| |
| TEST(ColorUtils, SkColorToHSLGrey) { |
| color_utils::HSL hsl = { 0, 0, 0 }; |
| color_utils::SkColorToHSL(SkColorSetARGB(255, 128, 128, 128), &hsl); |
| EXPECT_EQ(hsl.h, 0); |
| EXPECT_EQ(hsl.s, 0); |
| EXPECT_EQ(static_cast<int>(hsl.l * 100), |
| static_cast<int>(0.5 * 100)); // Accurate to two decimal places. |
| } |
| |
| TEST(ColorUtils, HSLToSkColorWithAlpha) { |
| SkColor red = SkColorSetARGB(128, 255, 0, 0); |
| color_utils::HSL hsl = { 0, 1, 0.5 }; |
| SkColor result = color_utils::HSLToSkColor(hsl, 128); |
| EXPECT_EQ(SkColorGetA(red), SkColorGetA(result)); |
| EXPECT_EQ(SkColorGetR(red), SkColorGetR(result)); |
| EXPECT_EQ(SkColorGetG(red), SkColorGetG(result)); |
| EXPECT_EQ(SkColorGetB(red), SkColorGetB(result)); |
| } |
| |
| TEST(ColorUtils, ColorToHSLRegisterSpill) { |
| // In a opt build on Linux, this was causing a register spill on my laptop |
| // (Pentium M) when converting from SkColor to HSL. |
| SkColor input = SkColorSetARGB(255, 206, 154, 89); |
| color_utils::HSL hsl = { -1, -1, -1 }; |
| SkColor result = color_utils::HSLShift(input, hsl); |
| EXPECT_EQ(255U, SkColorGetA(result)); |
| EXPECT_EQ(206U, SkColorGetR(result)); |
| EXPECT_EQ(153U, SkColorGetG(result)); |
| EXPECT_EQ(88U, SkColorGetB(result)); |
| } |