| // Copyright 2006-2008 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <stdlib.h> |
| #include <tuple> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| #include "ui/gfx/color_conversions.h" |
| |
| namespace gfx { |
| |
| namespace { |
| // Helper struct for testing purposes. |
| struct ColorTest { |
| std::tuple<float, float, float> input; |
| std::tuple<float, float, float> expected; |
| }; |
| } // namespace |
| |
| TEST(ColorConversions, LabToXYZD50) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{100.0f, 0.0f, 0.0f}, {0.9642f, 1.0f, 0.8252f}}, // white |
| {{33.0f, 0.0f, 0.0f}, {0.0727f, 0.0754f, 0.0622f}}, // gray1 |
| {{66.0f, 0.0f, 0.0f}, {0.3406f, 0.3532f, 0.2915f}}, // gray2 |
| {{20.0f, -35.0f, 45.0f}, {0.0134f, 0.0299f, -0.0056f}}, // dark_green |
| {{80.0f, -60.0f, 70.0f}, {0.3416f, 0.5668f, 0.0899f}}, // ligth_green |
| {{35.0f, 60.0f, 70.0f}, {0.1690f, 0.0850f, -0.0051f}}, // purple |
| {{75.0f, 45.0f, -100.0f}, {0.6448f, 0.4828f, 1.7488f}}, // lile |
| {{75.0f, 100.0f, 80.0f}, {0.92f, 0.4828f, 0.0469f}}}; // red |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_a, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| LabToXYZD50(input_l, input_a, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToLab) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642f, 1.0f, 0.8252f}, {100.0f, 0.0f, 0.0f}}, // white |
| {{0.0727f, 0.0754f, 0.0622f}, {33.0f, 0.0f, 0.0f}}, // gray1 |
| {{0.3406f, 0.3532f, 0.2915f}, {66.0f, 0.0f, 0.0f}}, // gray2 |
| {{0.0134f, 0.0299f, -0.0056f}, {20.0f, -35.0f, 45.0f}}, // dark_green |
| {{0.3416f, 0.5668f, 0.0899f}, {80.0f, -60.0f, 70.0f}}, // ligth_green |
| {{0.1690f, 0.0850f, -0.0051f}, {35.0f, 60.0f, 70.0f}}, // purple |
| {{0.6448f, 0.4828f, 1.7488f}, {75.0f, 45.0f, -100.0f}}, // lile |
| {{0.92f, 0.4828f, 0.0469f}, {75.0f, 100.0f, 80.0f}}}; // red |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_l, expected_a, expected_b] = color_pair.expected; |
| auto [output_l, output_a, output_b] = |
| XYZD50ToLab(input_x, input_y, input_z); |
| EXPECT_NEAR(output_l, expected_l, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_a, expected_a, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, OklabToXYZD65) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=lime&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{100.0f, 0.0, 0.0f}, |
| {0.9504559270516717f, 1.0f, 1.0890577507598784f}}, // white |
| {{86.64396115356694f, -0.23388757418790818f, 0.17949847989672985f}, |
| {0.357584339383878f, 0.715168678767756f, 0.11919477979462598f}}, // lime |
| {{42.09136612058102f, 0.16470430417002319f, -0.10147178154592906f}, |
| {0.1279775574172914f, 0.06148383144929487f, |
| 0.20935510595451154f}}, // purple |
| {{48.06125447400232f, 0.1440294785250731f, 0.0688902950420287f}, |
| {0.167625056565021f, 0.09823806119130823f, |
| 0.03204123425728893f}}, // brown |
| {{51.97518277948419f, -0.14030232755310995f, 0.10767589774360209f}, |
| {0.07718833433230218f, 0.15437666866460437f, |
| 0.025729444777434055f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_a, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| OklabToXYZD65(input_l, input_a, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD65ToOklab) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=lime&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9504559270516717f, 1.0f, 1.0890577507598784f}, |
| {100.0f, 0.0, 0.0f}}, // white |
| {{0.357584339383878f, 0.715168678767756f, 0.11919477979462598f}, |
| {86.64396115356694f, -0.23388757418790818f, |
| 0.17949847989672985f}}, // lime |
| {{0.1279775574172914f, 0.06148383144929487f, 0.20935510595451154f}, |
| {42.09136612058102f, 0.16470430417002319f, |
| -0.10147178154592906f}}, // purple |
| {{0.167625056565021f, 0.09823806119130823f, 0.03204123425728893f}, |
| {48.06125447400232f, 0.1440294785250731f, |
| 0.0688902950420287f}}, // brown |
| {{0.07718833433230218f, 0.15437666866460437f, 0.025729444777434055f}, |
| {51.97518277948419f, -0.14030232755310995f, |
| 0.10767589774360209f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_a, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| XYZD65ToOklab(input_l, input_a, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToD65) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.95047f, 1.0f, 1.0888f}, {0.95392f, 1.00594f, 1.439698f}}, // white |
| {{0.412, 0.213f, 0.019f}, {0.389938f, 0.20384f, 0.025982f}}, |
| {{0.358f, 0.715f, 0.119f}, {0.33307f, 0.714494f, 0.1480589f}}, |
| {{0.18f, 0.072f, 0.95f}, {0.23041847f, 0.087602f, 1.264587f}}, |
| {{0.23f, 0.107f, 0.555f}, {0.252396f, 0.113222f, 0.73899f}}, |
| {{0.114f, 0.09f, 0.087f}, {0.112348f, 0.089496f, 0.115299f}}}; |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| XYZD50ToD65(input_x, input_y, input_z); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD65ToD50) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.95392f, 1.00594f, 1.439698f}, {0.95047f, 1.0f, 1.0888f}}, // white |
| {{0.389938f, 0.20384f, 0.025982f}, {0.412, 0.213f, 0.019f}}, |
| {{0.33307f, 0.714494f, 0.1480589f}, {0.358f, 0.715f, 0.119f}}, |
| {{0.23041847f, 0.087602f, 1.264587f}, {0.18f, 0.072f, 0.95f}}, |
| {{0.252396f, 0.113222f, 0.73899f}, {0.23f, 0.107f, 0.555f}}, |
| {{0.112348f, 0.089496f, 0.115299f}, {0.114f, 0.09f, 0.087f}}}; |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| XYZD65ToD50(input_x, input_y, input_z); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50TosRGBLinear) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| std::tuple<float, float, float> colors_tests[] = { |
| {0.0f, 0.0f, 0.0f}, // black |
| {0.95047f, 1.0f, 1.0888f}, // white |
| {0.412, 0.213f, 0.019f}, {0.358f, 0.715f, 0.119f}, |
| {0.18f, 0.072f, 0.95f}, {0.23f, 0.107f, 0.555f}, |
| {0.114f, 0.09f, 0.087f}}; |
| |
| for (auto [input_x, input_y, input_z] : colors_tests) { |
| auto [output_r, output_g, output_b] = |
| XYZD50TosRGBLinear(input_x, input_y, input_z); |
| auto [x, y, z] = XYZD50ToD65(input_x, input_y, input_z); |
| auto [expected_r, expected_g, expected_b] = XYZD65TosRGBLinear(x, y, z); |
| EXPECT_NEAR(output_r, expected_r, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_g, expected_g, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.1f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, LchToLab) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{89.11f, 69.04f, 161.5f}, |
| {89.11f, -65.472265155436f, 21.906713478207564f}}, |
| {{29.6915239933531f, 66.82572352143814f, 327.1054738802461f}, |
| {29.6915239933531f, 56.11167248735513f, |
| -36.292665028011974f}}, // purple |
| {{38.14895894517021f, 59.598372928277406f, 32.286662896162966f}, |
| {38.14895894517021f, 50.38364171345111f, 31.834803335164764f}}, // brown |
| {{46.27770902748027f, 67.9842594463414f, 134.3838583288382f}, |
| {46.27770902748027f, -47.55240796497723f, |
| 48.586294664234586f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_c, input_h] = color_pair.input; |
| auto [expected_l, expected_a, expected_b] = color_pair.expected; |
| auto [output_l, output_a, output_b] = |
| LchToLab(input_l, input_c, absl::optional<float>(input_h)); |
| EXPECT_NEAR(output_l, expected_l, 0.001f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_a, expected_a, 0.001f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_l |
| << ' ' << expected_a << ' ' << expected_b << " produced " << output_l |
| << ' ' << output_a << ' ' << output_b; |
| } |
| |
| // Try with a none hue value (white). |
| float input_l = 100.0f; |
| float input_c = 0.000010331815288315629f; |
| absl::optional<float> input_h = absl::nullopt; |
| float expected_l = 100.0f; |
| float expected_a = -0.000007807961277528364f; |
| float expected_b = 0.000006766250648659877f; |
| auto [output_l, output_a, output_b] = |
| LchToLab(input_l, input_c, absl::optional<float>(input_h)); |
| EXPECT_NEAR(output_l, expected_l, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_l << ' ' << expected_a << ' ' << expected_b |
| << " produced " << output_l << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_a, expected_a, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_l << ' ' << expected_a << ' ' << expected_b |
| << " produced " << output_l << ' ' << output_a << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_l << ' ' << expected_a << ' ' << expected_b |
| << " produced " << output_l << ' ' << output_a << ' ' << output_b; |
| } |
| |
| TEST(ColorConversions, LabToLch) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{100.0f, 0.0f, 0.0f}, {100.0f, 0.0f, 0.0f}}, |
| {{89.11f, -65.472265155436f, 21.906713478207564f}, |
| {89.11f, 69.04f, 161.5f}}, |
| {{29.6915239933531f, 56.11167248735513f, -36.292665028011974f}, |
| {29.6915239933531f, 66.82572352143814f, |
| -32.894523620605469f}}, // purple |
| {{38.14895894517021f, 50.38364171345111f, 31.834803335164764f}, |
| {38.14895894517021f, 59.598372928277406f, |
| 32.286662896162966f}}, // brown |
| {{46.27770902748027f, -47.55240796497723f, 48.586294664234586f}, |
| {46.27770902748027f, 67.9842594463414f, 134.3838583288382f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_a, input_b] = color_pair.input; |
| auto [expected_l, expected_c, expected_h] = color_pair.expected; |
| auto [output_l, output_c, output_h] = LabToLch(input_l, input_a, input_b); |
| EXPECT_NEAR(output_l, expected_l, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_l |
| << ' ' << expected_c << ' ' << expected_h << " produced " << output_l |
| << ' ' << output_c << ' ' << output_h; |
| EXPECT_NEAR(output_c, expected_c, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_l |
| << ' ' << expected_c << ' ' << expected_h << " produced " << output_l |
| << ' ' << output_c << ' ' << output_h; |
| EXPECT_NEAR(output_h, expected_h, 0.001f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_l |
| << ' ' << expected_c << ' ' << expected_h << " produced " << output_l |
| << ' ' << output_c << ' ' << output_h; |
| } |
| } |
| |
| TEST(ColorConversions, LchToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{87.81853633115202f, 113.33150206540324f, 134.38385832883824f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{29.6915239933531f, 66.82572352143814f, 327.1054738802461f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{38.14895894517021f, 59.598372928277406f, 32.286662896162966f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{46.27770902748027f, 67.9842594463414f, 134.3838583288382f}, |
| {0.0f, 0.5019607843137255f, 0.0f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_c, input_h] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = |
| LchToSkColor4f(input_l, input_c, absl::optional<float>(input_h), 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| |
| // Try with a none hue value (white). |
| float input_l = 100.0f; |
| float input_c = 0.000010331815288315629f; |
| absl::optional<float> input_h = absl::nullopt; |
| float expected_r = 1.0f; |
| float expected_g = 1.0f; |
| float expected_b = 1.0f; |
| SkColor4f color = |
| LchToSkColor4f(input_l, input_c, absl::optional<float>(input_h), 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| } |
| |
| TEST(ColorConversions, OklchToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{86.64396115356694f, 0.2948272403370167f, 142.49533888780996f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{42.09136612058102f, 0.19345291484554133f, 328.36341792345144f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{48.06125447400232f, 0.1596570181206647f, 25.562112067668068f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{51.97518277948419f, 0.17685825418032036f, 142.4953388878099f}, |
| {0.0f, 0.5019607843137255f, 0.0f}}}; // green |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_c, input_h] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = OklchToSkColor4f(input_l, input_c, |
| absl::optional<float>(input_h), 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_l << ' ' << input_c << ' ' << input_h << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| |
| // Try with a none hue value (white). |
| float input_l = 100.0f; |
| float input_c = 0.000010331815288315629f; |
| absl::optional<float> input_h = absl::nullopt; |
| float expected_r = 1.0f; |
| float expected_g = 1.0f; |
| float expected_b = 1.0f; |
| SkColor4f color = |
| OklchToSkColor4f(input_l, input_c, absl::optional<float>(input_h), 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.001f) |
| << input_l << ' ' << input_c << ' ' << "none" |
| << " to " << expected_r << ' ' << expected_g << ' ' << expected_b |
| << " produced " << color.fR << ' ' << color.fG << ' ' << color.fB; |
| } |
| |
| TEST(ColorConversions, SRGBLinearToXYZD50) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0f, 1.0f, 1.0f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.0f, 1.0f, 0.0f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.37626212299090644f, 0.02315336617811041f, 0.02315336617811041f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{1.0f, 0.5271151257058131f, 0.5972017883637634f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| SRGBLinearToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, SRGBToXYZD50) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0f, 1.0f, 1.0f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.0f, 1.0f, 0.0f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.6470588235294118f, 0.16470588235294117f, 0.16470588235294117f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{1.0f, 0.7529411764705882f, 0.796078431372549f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| SRGBToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, SRGBToHSL) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0f, 1.0f, 1.0f}, {0.0f, 0.f, 1.f}}, // white |
| {{0.0f, 1.0f, 0.0f}, {120.0f / 60.0f, 1.0f, 0.5f}}, // lime |
| {{0.6470588235294118f, 0.16470588235294117f, 0.16470588235294117f}, |
| {0.0f, 0.59420289855072475f, 0.40588235294117645f}}, // brown |
| {{0.5019607843137255f, 0.0f, 0.5019607843137255f}, |
| {300.0f / 60.0f, 1.0f, 0.250980392156862741f}}, // purple |
| {{1.0f, 0.7529411764705882f, 0.796078431372549f}, |
| {349.5238095238096f / 60.0f, 1.00f, 0.876470588235294f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_h, expected_s, expected_l] = color_pair.expected; |
| auto [output_h, output_s, output_l] = SRGBToHSL(input_r, input_g, input_b); |
| EXPECT_NEAR(output_h, expected_h, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_s << ' ' << expected_l << " produced " << output_h |
| << ' ' << output_s << ' ' << output_l; |
| EXPECT_NEAR(output_s, expected_s, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_s << ' ' << expected_l << " produced " << output_h |
| << ' ' << output_s << ' ' << output_l; |
| EXPECT_NEAR(output_l, expected_l, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_s << ' ' << expected_l << " produced " << output_h |
| << ' ' << output_s << ' ' << output_l; |
| } |
| } |
| |
| TEST(ColorConversions, SRGBToHWB) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 1.0f}}, // black |
| {{1.0f, 1.0f, 1.0f}, {0.0f, 1.f, 0.f}}, // white |
| {{0.5, 0.5, 0.5}, {0.0f, 0.5f, 0.5f}}, // grey |
| {{0.0f, 1.0f, 0.0f}, {120.0f / 60.0f, 0.0f, 0.0f}}, // lime |
| {{0.6470588235294118f, 0.16470588235294117f, 0.16470588235294117f}, |
| {0.0f, 0.1647058823529411f, 0.35294117647058826f}}, // brown |
| {{0.5019607843137255f, 0.0f, 0.5019607843137255f}, |
| {300.0f / 60.0f, 0.0f, 0.4980392156862745f}}, // purple |
| {{1.0f, 0.7529411764705882f, 0.796078431372549f}, |
| {349.5238095238096f / 60.0f, 0.7529411764705883f, 0.0f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_h, expected_w, expected_b] = color_pair.expected; |
| auto [output_h, output_w, output_b] = SRGBToHWB(input_r, input_g, input_b); |
| EXPECT_NEAR(output_h, expected_h, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_w << ' ' << expected_b << " produced " << output_h |
| << ' ' << output_w << ' ' << output_b; |
| EXPECT_NEAR(output_w, expected_w, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_w << ' ' << expected_b << " produced " << output_h |
| << ' ' << output_w << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_h |
| << ' ' << expected_w << ' ' << expected_b << " produced " << output_h |
| << ' ' << output_w << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToSkColor4f) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642956660812443f, 1.0000000361162846f, 0.8251045485672053f}, |
| {1.0f, 1.0f, 1.0f}}, // white |
| {{0.3851514688337912f, 0.7168870538238823f, 0.09708128566574631f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.1763053229982614f, 0.10171766135467991f, 0.024020600356509242f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.7245316165924385f, 0.6365774485679174f, 0.4915583325045292f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = XYZD50ToSkColor4f(input_x, input_y, input_z, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD65ToSkColor4f) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9504559270516717f, 1.f, 1.0890577507598784f}, |
| {1.0f, 1.0f, 1.0f}}, // white |
| {{0.357584339383878f, 0.715168678767756f, 0.11919477979462598f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.167625056565021f, 0.09823806119130823f, 0.032041234257288932f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.7086623628695997f, 0.6327286137205872f, 0.6498196912712672f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}, // pink |
| {{1.0f, 1.0f, 1.0f}, {1.085f, 0.9769f, 0.9587f}}}; |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = XYZD65ToSkColor4f(input_x, input_y, input_z, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, LabToSkColor4f) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{100.0f, 0.0f, 0.0f}, {1.0f, 1.0f, 1.0f}}, // white |
| {{46.2775f, -47.521f, 48.5837f}, {0.0f, 0.5f, 0.0f}}, // green |
| {{50.0f, 50.0f, 0.0f}, {0.756208f, 0.304487f, 0.475634f}}, |
| {{70.0f, -45.0f, 0.0f}, {0.10751f, 0.75558f, 0.66398f}}, |
| {{70.0f, 0.0f, 70.0f}, {0.766254f, 0.663607f, 0.055775f}}, |
| {{55.0f, 0.0f, -60.0f}, {0.128128f, 0.53105f, 0.927645f}}, |
| {{100.115f, 9.06448f, 5.80177f}, {1.085f, 0.9769f, 0.9587f}}}; |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_l, input_a, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = LabToSkColor4f(input_l, input_a, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_l << ' ' << input_a << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, SRGBLinearToSkColor4f) { |
| // Color conversions obtained from |
| // https://www.nixsensor.com/free-color-converter/ |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0f, 1.0f, 1.0f}, {1.0f, 1.0f, 1.0f}}, // white |
| {{0.f, 0.21586050011389923f, 0.f}, |
| {0.f, 0.5019607843137255f, 0.f}}, // green |
| {{0.21586050011389923f, 0.f, 0.21586050011389923f}, |
| {0.5019607843137255f, 0.f, 0.5019607843137255f}}, // purple |
| {{1.f, 0.5271151257058131f, 0.5972017883637634f}, |
| {1.f, 0.7529411764705882f, 0.796078431372549f}}, // pink |
| {{0.37626212299090644f, 0.02315336617811041f, 0.02315336617811041f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}}; // brown |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = SRGBLinearToSkColor4f(input_r, input_g, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, DisplayP3ToXYZD50) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9999999999999999f, 0.9999999999999997f, 0.9999999999999999f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.45840159019103005f, 0.9852645833250543f, 0.29829470783345835f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.5957181607237907f, 0.2055939145569215f, 0.18695695018247227f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{0.4584004101072638f, 0.07977226603250179f, 0.4847907338567859f}, |
| {0.1250143560558979f, 0.0611129099463755f, |
| 0.15715146562446167f}}, // purple |
| {{0.962148711796773f, 0.7628803605364196f, 0.7971503318758075f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| DisplayP3ToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToDisplayP3) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642956660812443f, 1.0000000361162846f, 0.8251045485672053f}, |
| {0.9999999999999999f, 0.9999999999999997f, |
| 0.9999999999999999f}}, // white |
| {{0.3851514688337912f, 0.7168870538238823f, 0.09708128566574631f}, |
| {0.45840159019103005f, 0.9852645833250543f, |
| 0.29829470783345835f}}, // lime |
| {{0.1763053229982614f, 0.10171766135467991f, 0.024020600356509242f}, |
| {0.5957181607237907f, 0.2055939145569215f, |
| 0.18695695018247227f}}, // brown |
| {{0.1250143560558979f, 0.0611129099463755f, 0.15715146562446167f}, |
| {0.4584004101072638f, 0.07977226603250179f, |
| 0.4847907338567859f}}, // purple |
| {{0.7245316165924385f, 0.6365774485679174f, 0.4915583325045292f}, |
| {0.962148711796773f, 0.7628803605364196f, |
| 0.7971503318758075f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| auto [output_r, output_g, output_b] = |
| XYZD50ToDisplayP3(input_x, input_y, input_z); |
| EXPECT_NEAR(output_r, expected_r, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_g, expected_g, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, DisplayP3ToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9999999999999999f, 0.9999999999999997f, 0.9999999999999999f}, |
| {1.0f, 1.0f, 1.0f}}, // white |
| {{0.45840159019103005f, 0.9852645833250543f, 0.29829470783345835f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.5957181607237907f, 0.2055939145569215f, 0.18695695018247227f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.4584004101072638f, 0.07977226603250179f, 0.4847907338567859f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{0.962148711796773f, 0.7628803605364196f, 0.7971503318758075f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = DisplayP3ToSkColor4f(input_r, input_g, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, ProPhotoToXYZD50) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=pink&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9999999886663737f, 1.0000000327777285f, 0.9999999636791804f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.5402807890930262f, 0.9275948938161531f, 0.30456598218387576f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.4202512875251534f, 0.20537448341387265f, 0.14018716364460992f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{0.3415199027593793f, 0.13530888280806527f, 0.3980101298732242f}, |
| {0.1250143560558979f, 0.0611129099463755f, |
| 0.15715146562446167f}}, // purple |
| {{0.8755612852965058f, 0.7357597566543541f, 0.7499575746802042f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| ProPhotoToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToProPhoto) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=pink&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642956660812443f, 1.0000000361162846f, 0.8251045485672053f}, |
| {0.9999999886663737f, 1.0000000327777285f, |
| 0.9999999636791804f}}, // white |
| {{0.3851514688337912f, 0.7168870538238823f, 0.09708128566574631f}, |
| {0.5402807890930262f, 0.9275948938161531f, |
| 0.30456598218387576f}}, // lime |
| {{0.1763053229982614f, 0.10171766135467991f, 0.024020600356509242f}, |
| {0.4202512875251534f, 0.20537448341387265f, |
| 0.14018716364460992f}}, // brown |
| {{0.1250143560558979f, 0.0611129099463755f, 0.15715146562446167f}, |
| {0.3415199027593793f, 0.13530888280806527f, |
| 0.3980101298732242f}}, // purple |
| {{0.7245316165924385f, 0.6365774485679174f, 0.4915583325045292f}, |
| {0.8755612852965058f, 0.7357597566543541f, |
| 0.7499575746802042f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| auto [output_r, output_g, output_b] = |
| XYZD50ToProPhoto(input_x, input_y, input_z); |
| EXPECT_NEAR(output_r, expected_r, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_g, expected_g, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, ProPhotoToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=pink&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9999999886663737f, 1.0000000327777285f, 0.9999999636791804f}, |
| {1.0f, 1.0f, 1.0f}}, // white |
| {{0.5402807890930262f, 0.9275948938161531f, 0.30456598218387576f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.4202512875251534f, 0.20537448341387265f, 0.14018716364460992f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.3415199027593793f, 0.13530888280806527f, 0.3980101298732242f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{0.8755612852965058f, 0.7357597566543541f, 0.7499575746802042f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = ProPhotoToSkColor4f(input_r, input_g, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, AdobeRGBToXYZD50) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0000000000000002f, 0.9999999999999999f, 1.f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.564972265988564f, 0.9999999999999999f, 0.23442379872902916f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.5565979160264471f, 0.18045907254050694f, 0.18045907254050705f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{0.4275929819700999f, 0.0f, 0.4885886519419426f}, |
| {0.1250143560558979f, 0.0611129099463755f, |
| 0.15715146562446167f}}, // purple |
| {{0.9363244100721754f, 0.7473920857106169f, 0.7893042668092753f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| AdobeRGBToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToAdobeRGB) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642956660812443f, 1.0000000361162846f, 0.8251045485672053f}, |
| {1.0000000000000002f, 0.9999999999999999f, 1.f}}, // white |
| {{0.3851514688337912f, 0.7168870538238823f, 0.09708128566574631f}, |
| {0.564972265988564f, 0.9999999999999999f, |
| 0.23442379872902916f}}, // lime |
| {{0.1763053229982614f, 0.10171766135467991f, 0.024020600356509242f}, |
| {0.5565979160264471f, 0.18045907254050694f, |
| 0.18045907254050705f}}, // brown |
| {{0.1250143560558979f, 0.0611129099463755f, 0.15715146562446167f}, |
| {0.4275929819700999f, 0.0f, 0.4885886519419426f}}, // purple |
| {{0.7245316165924385f, 0.6365774485679174f, 0.4915583325045292f}, |
| {0.9363244100721754f, 0.7473920857106169f, |
| 0.7893042668092753f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| auto [output_r, output_g, output_b] = |
| XYZD50ToAdobeRGB(input_x, input_y, input_z); |
| EXPECT_NEAR(output_r, expected_r, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_g, expected_g, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.01f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, AdobeRGBToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0000000000000002f, 0.9999999999999999f, 1.f}, |
| {1.0f, 1.0f, 1.0f}}, // white |
| {{0.564972265988564f, 0.9999999999999999f, 0.23442379872902916f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.5565979160264471f, 0.18045907254050694f, 0.18045907254050705f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.4275929819700999f, 0.0f, 0.4885886519419426f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{0.9363244100721754f, 0.7473920857106169f, 0.7893042668092753f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = AdobeRGBToSkColor4f(input_r, input_g, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, Rec2020ToXYZD50) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0000000000000002f, 1.f, 1.f}, |
| {0.9642956660812443f, 1.0000000361162846f, |
| 0.8251045485672053f}}, // white |
| {{0.5675424725933591f, 0.959278677099374f, 0.2689692617052188f}, |
| {0.3851514688337912f, 0.7168870538238823f, |
| 0.09708128566574631f}}, // lime |
| {{0.4841434514625542f, 0.17985588424119636f, 0.12395667053434403f}, |
| {0.1763053229982614f, 0.10171766135467991f, |
| 0.024020600356509242f}}, // brown |
| {{0.36142160262090384f, 0.0781562275109019f, 0.429742223818931f}, |
| {0.1250143560558979f, 0.0611129099463755f, |
| 0.15715146562446167f}}, // purple |
| {{0.9098509851821579f, 0.747938726996672f, 0.7726929727190115f}, |
| {0.7245316165924385f, 0.6365774485679174f, |
| 0.4915583325045292f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_x, expected_y, expected_z] = color_pair.expected; |
| auto [output_x, output_y, output_z] = |
| Rec2020ToXYZD50(input_r, input_g, input_b); |
| EXPECT_NEAR(output_x, expected_x, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_y, expected_y, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| EXPECT_NEAR(output_z, expected_z, 0.001f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_x |
| << ' ' << expected_y << ' ' << expected_z << " produced " << output_x |
| << ' ' << output_y << ' ' << output_z; |
| } |
| } |
| |
| TEST(ColorConversions, XYZD50ToRec2020) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.9642956660812443f, 1.0000000361162846f, 0.8251045485672053f}, |
| {1.0000000000000002f, 1.f, 1.f}}, // white |
| {{0.3851514688337912f, 0.7168870538238823f, 0.09708128566574631f}, |
| {0.5675424725933591f, 0.959278677099374f, 0.2689692617052188f}}, // lime |
| {{0.1763053229982614f, 0.10171766135467991f, 0.024020600356509242f}, |
| {0.4841434514625542f, 0.17985588424119636f, |
| 0.12395667053434403f}}, // brown |
| {{0.1250143560558979f, 0.0611129099463755f, 0.15715146562446167f}, |
| {0.36142160262090384f, 0.0781562275109019f, |
| 0.429742223818931f}}, // purple |
| {{0.7245316165924385f, 0.6365774485679174f, 0.4915583325045292f}, |
| {0.9098509851821579f, 0.747938726996672f, |
| 0.7726929727190115f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_x, input_y, input_z] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| auto [output_r, output_g, output_b] = |
| XYZD50ToRec2020(input_x, input_y, input_z); |
| EXPECT_NEAR(output_r, expected_r, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_g, expected_g, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| EXPECT_NEAR(output_b, expected_b, 0.001f) |
| << input_x << ' ' << input_y << ' ' << input_z << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << output_r |
| << ' ' << output_g << ' ' << output_b; |
| } |
| } |
| |
| TEST(ColorConversions, Rec2020ToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{1.0000000000000002f, 1.f, 1.f}, {1.0f, 1.0f, 1.0f}}, // white |
| {{0.5675424725933591f, 0.959278677099374f, 0.2689692617052188f}, |
| {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.4841434514625542f, 0.17985588424119636f, 0.12395667053434403f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{0.36142160262090384f, 0.0781562275109019f, 0.429742223818931f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{0.9098509851821579f, 0.747938726996672f, 0.7726929727190115f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_r, input_g, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = Rec2020ToSkColor4f(input_r, input_g, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_r << ' ' << input_g << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, HSLToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.0f, 0.f, 1.f}, {1.0f, 1.0f, 1.0f}}, // white |
| {{120.0f / 60.0f, 1.0f, 0.5f}, {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.0f, 0.59420289855072475f, 0.40588235294117645f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{300.0f / 60.0f, 1.0f, 0.250980392156862741f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{349.5238095238096f / 60.0f, 1.00f, 0.876470588235294f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_h, input_s, input_l] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = HSLToSkColor4f(input_h, input_s, input_l, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_h << ' ' << input_s << ' ' << input_l << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_h << ' ' << input_s << ' ' << input_l << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_h << ' ' << input_s << ' ' << input_l << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| TEST(ColorConversions, HWBToSkColor4f) { |
| // Color conversions obtained from |
| // https://colorjs.io/apps/convert/?color=purple&precision=4 |
| ColorTest colors_tests[] = { |
| {{0.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 0.0f}}, // black |
| {{0.0f, 1.f, 0.f}, {1.0f, 1.0f, 1.0f}}, // white |
| {{0.0f, 0.5f, 0.5f}, {0.5, 0.5, 0.5}}, // grey |
| {{5.0f, 0.5f, 0.5f}, {0.5, 0.5, 0.5}}, // grey |
| {{120.0f / 60.0f, 0.0f, 0.0f}, {0.0f, 1.0f, 0.0f}}, // lime |
| {{0.0f, 0.1647058823529411f, 0.35294117647058826f}, |
| {0.6470588235294118f, 0.16470588235294117f, |
| 0.16470588235294117f}}, // brown |
| {{300.0f / 60.0f, 0.0f, 0.4980392156862745f}, |
| {0.5019607843137255f, 0.0f, 0.5019607843137255f}}, // purple |
| {{349.5238095238096f / 60.0f, 0.7529411764705883f, 0.0f}, |
| {1.0f, 0.7529411764705882f, 0.796078431372549f}}}; // pink |
| |
| for (auto& color_pair : colors_tests) { |
| auto [input_h, input_w, input_b] = color_pair.input; |
| auto [expected_r, expected_g, expected_b] = color_pair.expected; |
| SkColor4f color = HWBToSkColor4f(input_h, input_w, input_b, 1.0f); |
| EXPECT_NEAR(color.fR, expected_r, 0.01f) |
| << input_h << ' ' << input_w << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fG, expected_g, 0.01f) |
| << input_h << ' ' << input_w << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| EXPECT_NEAR(color.fB, expected_b, 0.01f) |
| << input_h << ' ' << input_w << ' ' << input_b << " to " << expected_r |
| << ' ' << expected_g << ' ' << expected_b << " produced " << color.fR |
| << ' ' << color.fG << ' ' << color.fB; |
| } |
| } |
| |
| } // namespace gfx |
