1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "media/base/video_color_space.h"
6 #include "base/logging.h"
7 #include "testing/gtest/include/gtest/gtest.h"
8 #include "ui/gfx/color_space.h"
9 #include "ui/gfx/color_transform.h"
10 #include "ui/gfx/transform.h"
11
12 namespace media {
13
14 class VideoColorSpaceTest : public testing::Test {};
15
TEST(VideoColorSpaceTest,UnknownVideoToSRGB)16 TEST(VideoColorSpaceTest, UnknownVideoToSRGB) {
17 // Invalid video spaces should be BT709.
18 VideoColorSpace invalid_video_color_space = VideoColorSpace(
19 VideoColorSpace::PrimaryID::INVALID, VideoColorSpace::TransferID::INVALID,
20 VideoColorSpace::MatrixID::INVALID, gfx::ColorSpace::RangeID::LIMITED);
21 gfx::ColorSpace unknown = invalid_video_color_space.ToGfxColorSpace();
22 gfx::ColorSpace sRGB = gfx::ColorSpace::CreateSRGB();
23 std::unique_ptr<gfx::ColorTransform> t(gfx::ColorTransform::NewColorTransform(
24 unknown, sRGB, gfx::ColorTransform::Intent::INTENT_PERCEPTUAL));
25
26 gfx::ColorTransform::TriStim tmp(16.0f / 255.0f, 0.5f, 0.5f);
27 t->Transform(&tmp, 1);
28 EXPECT_NEAR(tmp.x(), 0.0f, 0.001f);
29 EXPECT_NEAR(tmp.y(), 0.0f, 0.001f);
30 EXPECT_NEAR(tmp.z(), 0.0f, 0.001f);
31
32 tmp = gfx::ColorTransform::TriStim(235.0f / 255.0f, 0.5f, 0.5f);
33 t->Transform(&tmp, 1);
34 EXPECT_NEAR(tmp.x(), 1.0f, 0.001f);
35 EXPECT_NEAR(tmp.y(), 1.0f, 0.001f);
36 EXPECT_NEAR(tmp.z(), 1.0f, 0.001f);
37
38 // Test a blue color
39 tmp = gfx::ColorTransform::TriStim(128.0f / 255.0f, 240.0f / 255.0f, 0.5f);
40 t->Transform(&tmp, 1);
41 EXPECT_GT(tmp.z(), tmp.x());
42 EXPECT_GT(tmp.z(), tmp.y());
43 }
44
45 } // namespace media
46