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910e62b5创建于 1月15日历史提交
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/display/util/display_util.h"

#include <vector>

#include "base/test/metrics/histogram_tester.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/display/test/display_test_util.h"
#include "ui/display/util/edid_parser.h"
#include "ui/gfx/color_space.h"

namespace display {

namespace {

// HP z32x monitor.
constexpr uint8_t kHPz32x[] = {
    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x22, 0xF0, 0x75, 0x32,
    0x01, 0x01, 0x01, 0x01, 0x1B, 0x1B, 0x01, 0x04, 0xB5, 0x46, 0x27, 0x78,
    0x3A, 0x8D, 0x15, 0xAC, 0x51, 0x32, 0xB8, 0x26, 0x0B, 0x50, 0x54, 0x21,
    0x08, 0x00, 0xD1, 0xC0, 0xA9, 0xC0, 0x81, 0xC0, 0xD1, 0x00, 0xB3, 0x00,
    0x95, 0x00, 0xA9, 0x40, 0x81, 0x80, 0x4D, 0xD0, 0x00, 0xA0, 0xF0, 0x70,
    0x3E, 0x80, 0x30, 0x20, 0x35, 0x00, 0xB9, 0x88, 0x21, 0x00, 0x00, 0x1A,
    0x00, 0x00, 0x00, 0xFD, 0x00, 0x18, 0x3C, 0x1E, 0x87, 0x3C, 0x00, 0x0A,
    0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x48,
    0x50, 0x20, 0x5A, 0x33, 0x32, 0x78, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20,
    0x00, 0x00, 0x00, 0xFF, 0x00, 0x43, 0x4E, 0x43, 0x37, 0x32, 0x37, 0x30,
    0x4D, 0x57, 0x30, 0x0A, 0x20, 0x20, 0x01, 0x46, 0x02, 0x03, 0x18, 0xF1,
    0x4B, 0x10, 0x1F, 0x04, 0x13, 0x03, 0x12, 0x02, 0x11, 0x01, 0x05, 0x14,
    0x23, 0x09, 0x07, 0x07, 0x83, 0x01, 0x00, 0x00, 0xA3, 0x66, 0x00, 0xA0,
    0xF0, 0x70, 0x1F, 0x80, 0x30, 0x20, 0x35, 0x00, 0xB9, 0x88, 0x21, 0x00,
    0x00, 0x1A, 0x56, 0x5E, 0x00, 0xA0, 0xA0, 0xA0, 0x29, 0x50, 0x30, 0x20,
    0x35, 0x00, 0xB9, 0x88, 0x21, 0x00, 0x00, 0x1A, 0xEF, 0x51, 0x00, 0xA0,
    0xF0, 0x70, 0x19, 0x80, 0x30, 0x20, 0x35, 0x00, 0xB9, 0x88, 0x21, 0x00,
    0x00, 0x1A, 0xE2, 0x68, 0x00, 0xA0, 0xA0, 0x40, 0x2E, 0x60, 0x20, 0x30,
    0x63, 0x00, 0xB9, 0x88, 0x21, 0x00, 0x00, 0x1C, 0x28, 0x3C, 0x80, 0xA0,
    0x70, 0xB0, 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0xB9, 0x88, 0x21, 0x00,
    0x00, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x3E};

// Chromebook Samus internal display.
constexpr uint8_t kSamus[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x30, 0xe4, 0x2e, 0x04,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x01, 0x04, 0xa5, 0x1b, 0x12, 0x96,
    0x02, 0x4f, 0xd5, 0xa2, 0x59, 0x52, 0x93, 0x26, 0x17, 0x50, 0x54, 0x00,
    0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x6d, 0x6f, 0x00, 0x9e, 0xa0, 0xa4,
    0x31, 0x60, 0x30, 0x20, 0x3a, 0x00, 0x10, 0xb5, 0x10, 0x00, 0x00, 0x19,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x4c,
    0x47, 0x20, 0x44, 0x69, 0x73, 0x70, 0x6c, 0x61, 0x79, 0x0a, 0x20, 0x20,
    0x00, 0x00, 0x00, 0xfe, 0x00, 0x4c, 0x50, 0x31, 0x32, 0x39, 0x51, 0x45,
    0x32, 0x2d, 0x53, 0x50, 0x41, 0x31, 0x00, 0x6c};

// Chromebook Eve internal display.
constexpr uint8_t kEve[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4d, 0x10, 0x8a, 0x14,
    0x00, 0x00, 0x00, 0x00, 0x16, 0x1b, 0x01, 0x04, 0xa5, 0x1a, 0x11, 0x78,
    0x06, 0xde, 0x50, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0x00,
    0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xbb, 0x62, 0x60, 0xa0, 0x90, 0x40,
    0x2e, 0x60, 0x30, 0x20, 0x3a, 0x00, 0x03, 0xad, 0x10, 0x00, 0x00, 0x18,
    0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0xfc, 0x00, 0x4c, 0x51, 0x31, 0x32, 0x33, 0x50, 0x31,
    0x4a, 0x58, 0x33, 0x32, 0x0a, 0x20, 0x00, 0xb6};

// Invalid EDID: too short to contain chromaticity nor gamma information.
constexpr uint8_t kInvalidEdid[] = {
    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x22, 0xF0, 0x76, 0x26,
    0x01, 0x01, 0x01, 0x01, 0x02, 0x12, 0x01, 0x03, 0x80, 0x34, 0x21};

// Partially valid EDID: gamma information is marked as non existent.
constexpr uint8_t kEdidWithNoGamma[] = {
    0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x22, 0xF0, 0x76, 0x26,
    0x01, 0x01, 0x01, 0x01, 0x02, 0x12, 0x01, 0x03, 0x80, 0x34, 0x21, 0xFF,
    0xEE, 0xEF, 0x95, 0xA3, 0x54, 0x4C, 0x9B, 0x26, 0x0F, 0x50, 0x54, 0xA5,
    0x6B, 0x80, 0x81, 0x40, 0x81, 0x80, 0x81, 0x99, 0x71, 0x00, 0xA9, 0x00};

// Screebo display with chromaticities near P3
constexpr uint8_t kScreeboP3[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x09, 0xe5, 0x1b, 0x0c,
    0x00, 0x00, 0x00, 0x00, 0x12, 0x21, 0x01, 0x04, 0xb5, 0x1e, 0x13, 0x78,
    0x03, 0x14, 0xd5, 0xae, 0x51, 0x42, 0xb2, 0x24, 0x0f, 0x50, 0x54, 0x00,
    0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xc0, 0xd8, 0x00, 0xa0, 0xa0, 0x40,
    0x64, 0x60, 0x30, 0x20, 0x36, 0x00, 0x2e, 0xbc, 0x10, 0x00, 0x00, 0x1a,
    0x60, 0x6c, 0x00, 0xa0, 0xa0, 0x40, 0x64, 0x60, 0x30, 0x20, 0x36, 0x00,
    0x2e, 0xbc, 0x10, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x30,
    0x78, 0xcc, 0xcc, 0x37, 0x01, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
    0x00, 0x00, 0x00, 0xfe, 0x00, 0x4e, 0x45, 0x31, 0x34, 0x30, 0x51, 0x44,
    0x4d, 0x2d, 0x4e, 0x58, 0x35, 0x0a, 0x01, 0x1b, 0x02, 0x03, 0x22, 0x00,
    0xe3, 0x05, 0x80, 0x00, 0xe6, 0x06, 0x05, 0x01, 0x6a, 0x6a, 0x43, 0x72,
    0x1a, 0x00, 0x00, 0x03, 0x03, 0x30, 0x78, 0x00, 0x20, 0x6a, 0x43, 0x6a,
    0x43, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x3c};

// EDID with only DCI-P3 in colorimetry data block
constexpr uint8_t kCDBP3[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x06, 0xb3, 0xda, 0x16,
    0x5e, 0x42, 0x02, 0x00, 0x15, 0x20, 0x01, 0x04, 0xb5, 0x22, 0x13, 0x78,
    0x3a, 0x0c, 0xf5, 0xae, 0x52, 0x3c, 0xb9, 0x23, 0x0c, 0x50, 0x54, 0x21,
    0x08, 0x00, 0xb3, 0x00, 0x95, 0x00, 0x81, 0x80, 0x81, 0x40, 0x81, 0xc0,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x35, 0x36, 0x80, 0xa0, 0x70, 0x38,
    0x20, 0x40, 0x30, 0x20, 0x88, 0x00, 0x58, 0xc2, 0x10, 0x00, 0x00, 0x1b,
    0x00, 0x00, 0x00, 0xff, 0x00, 0x4e, 0x35, 0x4c, 0x4d, 0x54, 0x46, 0x31,
    0x34, 0x38, 0x30, 0x36, 0x32, 0x0a, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18,
    0x3d, 0x18, 0x53, 0x11, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
    0x00, 0x00, 0x00, 0xfc, 0x00, 0x41, 0x53, 0x55, 0x53, 0x20, 0x4d, 0x51,
    0x31, 0x36, 0x41, 0x48, 0x0a, 0x20, 0x01, 0x55,

    0x02, 0x03, 0x30, 0xf1, 0x52, 0x01, 0x03, 0x02, 0x04, 0x0e, 0x0f, 0x90,
    0x12, 0x11, 0x13, 0x1e, 0x1d, 0x1f, 0x05, 0x14, 0x20, 0x21, 0x22, 0x23,
    0x09, 0x07, 0x07, 0x83, 0x01, 0x00, 0x00, 0x65, 0x03, 0x0c, 0x00, 0x20,
    0x00, 0xe3, 0x05, 0x00, 0x81, 0xe6, 0x06, 0x05, 0x01, 0x5c, 0x5c, 0x09,
    0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c, 0x45, 0x00,
    0x58, 0xc2, 0x10, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9a};

// Chromebook Samsung Galaxy (kohaku) that supports HDR metadata.
constexpr uint8_t kHDR[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x83, 0x42, 0x41,
    0x00, 0x00, 0x00, 0x00, 0x13, 0x1d, 0x01, 0x04, 0xb5, 0x1d, 0x11, 0x78,
    0x02, 0x38, 0xd1, 0xae, 0x51, 0x3b, 0xb8, 0x23, 0x0b, 0x50, 0x54, 0x00,
    0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xb9, 0xd5, 0x00, 0x40, 0xf1, 0x70,
    0x20, 0x80, 0x30, 0x20, 0x88, 0x00, 0x26, 0xa5, 0x10, 0x00, 0x00, 0x1b,
    0xb9, 0xd5, 0x00, 0x40, 0xf1, 0x70, 0x20, 0x80, 0x30, 0x20, 0x88, 0x00,
    0x26, 0xa5, 0x10, 0x00, 0x00, 0x1b, 0x00, 0x00, 0x00, 0x0f, 0x00, 0xff,
    0x09, 0x3c, 0xff, 0x09, 0x3c, 0x2c, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0xfe, 0x00, 0x41, 0x54, 0x4e, 0x41, 0x33, 0x33, 0x54,
    0x50, 0x30, 0x34, 0x2d, 0x30, 0x20, 0x01, 0xba, 0x02, 0x03, 0x0f, 0x00,
    0xe3, 0x05, 0x80, 0x00, 0xe6, 0x06, 0x05, 0x01, 0x73, 0x6d, 0x07, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0xab};

// EDID collected in the wild: valid but with primaries in the wrong order.
constexpr uint8_t kSST210[] = {
    0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x2d, 0x4c, 0x42, 0x52,
    0x32, 0x31, 0x50, 0x43, 0x0c, 0x2b, 0x03, 0x01, 0x33, 0x80, 0xa2, 0x20,
    0x56, 0x2a, 0x9c, 0x4e, 0x50, 0x5b, 0x26, 0x95, 0x50, 0x23, 0xbf, 0x59,
    0x80, 0xef, 0x80, 0x81, 0x59, 0x61, 0x59, 0x45, 0x59, 0x31, 0x40, 0x31,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x32, 0x8c, 0xa0, 0x40, 0xb0, 0x60,
    0x40, 0x19, 0x32, 0x1e, 0x00, 0x13, 0x44, 0x06, 0x00, 0x21, 0x1e, 0x00,
    0x00, 0x00, 0xfd, 0x00, 0x38, 0x00, 0x1e, 0x55, 0x0f, 0x51, 0x0a, 0x00,
    0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0xfc, 0x00, 0x32, 0x00,
    0x30, 0x31, 0x20, 0x54, 0x69, 0x44, 0x69, 0x67, 0x61, 0x74, 0x0a, 0x6c,
    0x00, 0x00, 0xff, 0x00, 0x48, 0x00, 0x4b, 0x34, 0x41, 0x54, 0x30, 0x30,
    0x32, 0x38, 0x0a, 0x38, 0x20, 0x20, 0xf8, 0x00};

// EDID of |kSST210| with the order of the primaries corrected. Still invalid
// because the triangle of primaries is too small.
constexpr uint8_t kSST210Corrected[] = {
    0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x2d, 0x4c, 0x42, 0x52,
    0x32, 0x31, 0x50, 0x43, 0x0c, 0x2b, 0x03, 0x01, 0x33, 0x80, 0xa2, 0x20,
    0x56, 0x2a, 0x9c, 0x95, 0x50, 0x4e, 0x50, 0x5b, 0x26, 0x23, 0xbf, 0x59,
    0x80, 0xef, 0x80, 0x81, 0x59, 0x61, 0x59, 0x45, 0x59, 0x31, 0x40, 0x31,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x32, 0x8c, 0xa0, 0x40, 0xb0, 0x60,
    0x40, 0x19, 0x32, 0x1e, 0x00, 0x13, 0x44, 0x06, 0x00, 0x21, 0x1e, 0x00,
    0x00, 0x00, 0xfd, 0x00, 0x38, 0x00, 0x1e, 0x55, 0x0f, 0x51, 0x0a, 0x00,
    0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0xfc, 0x00, 0x32, 0x00,
    0x30, 0x31, 0x20, 0x54, 0x69, 0x44, 0x69, 0x67, 0x61, 0x74, 0x0a, 0x6c,
    0x00, 0x00, 0xff, 0x00, 0x48, 0x00, 0x4b, 0x34, 0x41, 0x54, 0x30, 0x30,
    0x32, 0x38, 0x0a, 0x38, 0x20, 0x20, 0xf8, 0x00};

// This EDID produces blue primary coordinates too far off the expected point,
// which would paint blue colors as purple. See https://crbug.com/809909.
constexpr uint8_t kBrokenBluePrimaries[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x4c, 0x83, 0x4d, 0x83,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x19, 0x01, 0x04, 0x95, 0x1d, 0x10, 0x78,
    0x0a, 0xee, 0x25, 0xa3, 0x54, 0x4c, 0x99, 0x29, 0x26, 0x50, 0x54, 0x00,
    0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xd2, 0x37, 0x80, 0xa2, 0x70, 0x38,
    0x40, 0x40, 0x30, 0x20, 0x25, 0x00, 0x25, 0xa5, 0x10, 0x00, 0x00, 0x1a,
    0xa6, 0x2c, 0x80, 0xa2, 0x70, 0x38, 0x40, 0x40, 0x30, 0x20, 0x25, 0x00,
    0x25, 0xa5, 0x10, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x56,
    0x59, 0x54, 0x39, 0x36, 0x80, 0x31, 0x33, 0x33, 0x48, 0x4c, 0x0a, 0x20,
    0x00, 0x00, 0x00, 0x00};

// This EDID contains Short Audio Descriptors in the Timing Extension
// Data which indicate LPCM, DTS, and DTS-HD audio.
constexpr uint8_t kDTSAudio[] = {
    0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x59, 0x3a, 0x39, 0x10,
    0x01, 0x01, 0x01, 0x01, 0x00, 0x1f, 0x01, 0x03, 0x80, 0x5e, 0x35, 0x78,
    0x2a, 0x29, 0xdd, 0xa5, 0x57, 0x35, 0x9f, 0x26, 0x0e, 0x47, 0x4a, 0xa5,
    0xce, 0x00, 0xd1, 0xc0, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
    0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x08, 0xe8, 0x00, 0x30, 0xf2, 0x70,
    0x5a, 0x80, 0xb0, 0x58, 0x8a, 0x00, 0xad, 0x11, 0x32, 0x00, 0x00, 0x1e,
    0x56, 0x5e, 0x00, 0xa0, 0xa0, 0xa0, 0x29, 0x50, 0x30, 0x20, 0x35, 0x00,
    0xad, 0x11, 0x32, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x56,
    0x34, 0x33, 0x35, 0x2d, 0x4a, 0x30, 0x31, 0x0a, 0x20, 0x20, 0x20, 0x20,
    0x00, 0x00, 0x00, 0xfd, 0x00, 0x17, 0x4c, 0x0f, 0x8c, 0x3c, 0x00, 0x0a,
    0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xb3, 0x02, 0x03, 0x75, 0x70,
    0x57, 0x61, 0x66, 0x5f, 0x64, 0x5d, 0x62, 0x60, 0x65, 0x5e, 0x63, 0x10,
    0x22, 0x20, 0x1f, 0x21, 0x05, 0x04, 0x13, 0x07, 0x06, 0x03, 0x02, 0x01,
    0x35, 0x09, 0x07, 0x07, 0x15, 0x07, 0x50, 0x57, 0x04, 0x03, 0x3d, 0x07,
    0xc0, 0x5f, 0x7e, 0x07, 0x67, 0x7e, 0x03, 0x5f, 0x7e, 0x01, 0x83, 0x01,
    0x00, 0x00, 0x70, 0x03, 0x0c, 0x00, 0x20, 0x00, 0x38, 0x44, 0xa0, 0x5b,
    0x5b, 0x00, 0x80, 0x01, 0x02, 0x03, 0x04, 0x6a, 0xd8, 0x5d, 0xc4, 0x01,
    0x78, 0x80, 0x0b, 0x02, 0x00, 0x00, 0xeb, 0x01, 0x46, 0xd0, 0x00, 0x4d,
    0x4f, 0x2a, 0x96, 0x38, 0x1f, 0xbf, 0xe5, 0x01, 0x8b, 0x84, 0x90, 0x01,
    0xe2, 0x00, 0xff, 0xe2, 0x0f, 0xc3, 0xe6, 0x06, 0x0f, 0x01, 0x53, 0x53,
    0x0a, 0xe3, 0x05, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x80};

}  // namespace

TEST(DisplayUtilTest, TestValidDisplaySize) {
  EXPECT_FALSE(IsDisplaySizeValid(gfx::Size(10, 10)));
  EXPECT_FALSE(IsDisplaySizeValid(gfx::Size(40, 30)));
  EXPECT_FALSE(IsDisplaySizeValid(gfx::Size(50, 40)));
  EXPECT_FALSE(IsDisplaySizeValid(gfx::Size(160, 90)));
  EXPECT_FALSE(IsDisplaySizeValid(gfx::Size(160, 100)));

  EXPECT_TRUE(IsDisplaySizeValid(gfx::Size(50, 60)));
  EXPECT_TRUE(IsDisplaySizeValid(gfx::Size(100, 70)));
  EXPECT_TRUE(IsDisplaySizeValid(gfx::Size(272, 181)));
}

TEST(DisplayUtilTest, GetColorSpaceFromEdid) {
  base::HistogramTester histogram_tester;

  // Test with HP z32x monitor.
  constexpr SkColorSpacePrimaries expected_hpz32x_primaries = {
      .fRX = 0.673828f,
      .fRY = 0.316406f,
      .fGX = 0.198242f,
      .fGY = 0.719727f,
      .fBX = 0.148438f,
      .fBY = 0.043945f,
      .fWX = 0.313477f,
      .fWY = 0.329102f};
  skcms_Matrix3x3 expected_hpz32x_toXYZ50_matrix;
  expected_hpz32x_primaries.toXYZD50(&expected_hpz32x_toXYZ50_matrix);
  std::vector<uint8_t> hpz32x_edid(std::begin(kHPz32x), std::end(kHPz32x));
  const gfx::ColorSpace expected_hpz32x_color_space =
      gfx::ColorSpace::CreateCustom(
          expected_hpz32x_toXYZ50_matrix,
          skcms_TransferFunction({2.2, 1, 0, 0, 0, 0, 0}));
  EXPECT_EQ(expected_hpz32x_color_space.ToString(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(hpz32x_edid)))
                .ToString());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kSuccess),
      1);

  // Test with Chromebook Samus internal display.
  constexpr SkColorSpacePrimaries expected_samus_primaries = {.fRX = 0.633789f,
                                                              .fRY = 0.347656f,
                                                              .fGX = 0.323242f,
                                                              .fGY = 0.577148f,
                                                              .fBX = 0.151367f,
                                                              .fBY = 0.090820f,
                                                              .fWX = 0.313477f,
                                                              .fWY = 0.329102f};
  skcms_Matrix3x3 expected_samus_toXYZ50_matrix;
  expected_samus_primaries.toXYZD50(&expected_samus_toXYZ50_matrix);
  std::vector<uint8_t> samus_edid(std::begin(kSamus), std::end(kSamus));
  const gfx::ColorSpace expected_samus_color_space =
      gfx::ColorSpace::CreateCustom(
          expected_samus_toXYZ50_matrix,
          skcms_TransferFunction({2.5, 1, 0, 0, 0, 0, 0}));
  EXPECT_EQ(expected_samus_color_space.ToString(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(samus_edid)))
                .ToString());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kSuccess),
      2);

  // Test with Chromebook Eve internal display. The SkColorSpacePrimaries:
  // SkColorSpacePrimaries expected_eve_primaries = {.fRX = 0.639648f,
  //                                                 .fRY = 0.329102f,
  //                                                 .fGX = 0.299805f,
  //                                                 .fGY = 0.599609f,
  //                                                 .fBX = 0.149414f,
  //                                                 .fBY = 0.059570f,
  //                                                 .fWX = 0.312500f,
  //                                                 .fWY = 0.328125f};
  // are very close to the BT.709/sRGB ones, so they'll be rounded to those.
  const skcms_TransferFunction eve_transfer({2.2, 1, 0, 0, 0, 0, 0});
  const gfx::ColorSpace expected_eve_color_space(
      gfx::ColorSpace::PrimaryID::BT709, gfx::ColorSpace::TransferID::CUSTOM,
      gfx::ColorSpace::MatrixID::RGB, gfx::ColorSpace::RangeID::FULL,
      /*custom_primary_matrix=*/nullptr, &eve_transfer);
  std::vector<uint8_t> eve_edid(std::begin(kEve), std::end(kEve));
  EXPECT_EQ(expected_eve_color_space.ToString(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(eve_edid)))
                .ToString());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kSuccess),
      3);

  // Test with a display that supports HDR: Chromebook Samsung Galaxy (kohaku).
  constexpr SkColorSpacePrimaries expected_hdr_primaries = {.fRX = 0.67970f,
                                                            .fRY = 0.31930f,
                                                            .fGX = 0.23240f,
                                                            .fGY = 0.71870f,
                                                            .fBX = 0.13965f,
                                                            .fBY = 0.04390f,
                                                            .fWX = 0.31250f,
                                                            .fWY = 0.32910f};
  skcms_Matrix3x3 expected_hdr_toXYZ50_matrix;
  expected_hdr_primaries.toXYZD50(&expected_hdr_toXYZ50_matrix);
  std::vector<uint8_t> hdr_edid(std::begin(kHDR), std::end(kHDR));
  const gfx::ColorSpace expected_hdr_color_space =
      gfx::ColorSpace::CreateCustom(expected_hdr_toXYZ50_matrix,
                                    gfx::ColorSpace::TransferID::PQ);
  EXPECT_TRUE(expected_hdr_color_space.IsHDR());
  EXPECT_EQ(expected_hdr_color_space.ToString(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(hdr_edid)))
                .ToString());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kSuccess),
      4);

  // Test with gamma marked as non-existent.
  std::vector<uint8_t> no_gamma_edid(std::begin(kEdidWithNoGamma),
                                     std::end(kEdidWithNoGamma));
  const gfx::ColorSpace no_gamma_color_space =
      GetColorSpaceFromEdid(display::EdidParser(std::move(no_gamma_edid)));
  EXPECT_FALSE(no_gamma_color_space.IsValid());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorBadGamma),
      1);
  histogram_tester.ExpectTotalCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome", 5);

  // Test with a display with primaries near P3, but {BT2020,RGB} in its CDB.
  constexpr SkColorSpacePrimaries expected_p3_primaries = {.fRX = 0.680f,
                                                           .fRY = 0.320f,
                                                           .fGX = 0.265f,
                                                           .fGY = 0.690f,
                                                           .fBX = 0.150f,
                                                           .fBY = 0.060f,
                                                           .fWX = 0.3127,
                                                           .fWY = 0.3290};
  skcms_Matrix3x3 expected_p3_to_XYZ50_matrix;
  expected_p3_primaries.toXYZD50(&expected_p3_to_XYZ50_matrix);
  std::vector<uint8_t> p3_edid(std::begin(kScreeboP3), std::end(kScreeboP3));
  const gfx::ColorSpace expected_p3_color_space = gfx::ColorSpace::CreateCustom(
      expected_p3_to_XYZ50_matrix, gfx::ColorSpace::TransferID::PQ);
  EXPECT_TRUE(expected_p3_color_space.IsWide());
  // Expect P3 primaries and PQ transfer function.
  EXPECT_EQ(expected_p3_color_space.ToString(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(p3_edid)))
                .ToString());

  // Test with a display that has only DCI-P3 in its Colorimetry Data Block.
  std::vector<uint8_t> p3_cdb_edid(std::begin(kCDBP3), std::end(kCDBP3));
  EXPECT_EQ(
      gfx::ColorSpace::CreateDisplayP3D65().ToString(),
      GetColorSpaceFromEdid(display::EdidParser(std::move(p3_cdb_edid), true))
          .ToString());
}

TEST(DisplayUtilTest, GetInvalidColorSpaceFromEdid) {
  base::HistogramTester histogram_tester;
  std::vector<uint8_t> empty_edid;
  EXPECT_EQ(gfx::ColorSpace(),
            GetColorSpaceFromEdid(display::EdidParser(std::move(empty_edid))));
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorPrimariesAreaTooSmall),
      1);

  std::vector<uint8_t> invalid_edid(std::begin(kInvalidEdid),
                                    std::end(kInvalidEdid));
  const gfx::ColorSpace invalid_color_space =
      GetColorSpaceFromEdid(display::EdidParser(std::move(invalid_edid)));
  EXPECT_FALSE(invalid_color_space.IsValid());
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorPrimariesAreaTooSmall),
      2);

  std::vector<uint8_t> sst210_edid(std::begin(kSST210), std::end(kSST210));
  const gfx::ColorSpace sst210_color_space =
      GetColorSpaceFromEdid(display::EdidParser(std::move(sst210_edid)));
  EXPECT_FALSE(sst210_color_space.IsValid()) << sst210_color_space.ToString();
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorBadCoordinates),
      1);

  std::vector<uint8_t> sst210_edid_2(std::begin(kSST210Corrected),
                                     std::end(kSST210Corrected));
  const gfx::ColorSpace sst210_color_space_2 =
      GetColorSpaceFromEdid(display::EdidParser(std::move(sst210_edid_2)));
  EXPECT_FALSE(sst210_color_space_2.IsValid())
      << sst210_color_space_2.ToString();
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorPrimariesAreaTooSmall),
      3);

  std::vector<uint8_t> broken_blue_edid(std::begin(kBrokenBluePrimaries),
                                        std::end(kBrokenBluePrimaries));
  const gfx::ColorSpace broken_blue_color_space =
      GetColorSpaceFromEdid(display::EdidParser(std::move(broken_blue_edid)));
  EXPECT_FALSE(broken_blue_color_space.IsValid())
      << broken_blue_color_space.ToString();
  histogram_tester.ExpectBucketCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome",
      static_cast<base::HistogramBase::Sample32>(
          EdidColorSpaceChecksOutcome::kErrorBluePrimaryIsBroken),
      1);
  histogram_tester.ExpectTotalCount(
      "DrmUtil.GetColorSpaceFromEdid.ChecksOutcome", 5);
}

TEST(DisplayUtilTest, GetAudioPassthroughFromEdid) {
  std::vector<uint8_t> audio_edid(std::begin(kDTSAudio), std::end(kDTSAudio));
  EXPECT_EQ(display::EdidParser(std::move(audio_edid)).audio_formats(),
            display::EdidParser::kAudioBitstreamPcmLinear |
                display::EdidParser::kAudioBitstreamDts |
                display::EdidParser::kAudioBitstreamDtsHd);
}

TEST(DisplayUtilTest, MultipleInternalDisplayIds) {
  // using base::flat_set as base::FixedFlatSet with different N are different
  // types.
  const base::flat_set<int64_t> kTestIdsList[] = {
      base::flat_set<int64_t>({1}),
      base::flat_set<int64_t>({2, 3}),
      base::flat_set<int64_t>({4, 5, 6}),
      base::flat_set<int64_t>(
          {7, 10, 100, std::numeric_limits<int64_t>::max()}),
  };

  int64_t from_last_set = 0;
  for (const auto& id_set : kTestIdsList) {
    SetInternalDisplayIds(id_set);
    for (int64_t id : id_set) {
      EXPECT_TRUE(IsInternalDisplayId(id));
    }
    EXPECT_FALSE(IsInternalDisplayId(from_last_set));
    from_last_set = *id_set.rbegin();
  }

  // Reset the internal display.
  SetInternalDisplayIds({});
  for (auto id_set : kTestIdsList) {
    for (int64_t id : id_set) {
      EXPECT_FALSE(IsInternalDisplayId(id));
    }
  }
}

TEST(DisplayUtilTest, CompareDisplayIdsWithMultipleDisplays) {
  // Internal display is always first.
  EXPECT_TRUE(CompareDisplayIds(10, 12));
  {
    ScopedSetInternalDisplayIds set_internal(10);
    EXPECT_TRUE(CompareDisplayIds(10, 12));
    EXPECT_TRUE(CompareDisplayIds(10, 9));
    EXPECT_TRUE(CompareDisplayIds(10, 15));
    EXPECT_FALSE(CompareDisplayIds(12, 10));
    EXPECT_FALSE(CompareDisplayIds(12, 9));
    EXPECT_TRUE(CompareDisplayIds(12, 15));
  }
  {
    ScopedSetInternalDisplayIds set_internal(12);
    EXPECT_FALSE(CompareDisplayIds(10, 12));
    EXPECT_FALSE(CompareDisplayIds(10, 9));
    EXPECT_TRUE(CompareDisplayIds(10, 15));
    EXPECT_TRUE(CompareDisplayIds(12, 10));
    EXPECT_TRUE(CompareDisplayIds(12, 9));
    EXPECT_TRUE(CompareDisplayIds(12, 15));
  }
  // Internal displays are always first but compares values between internal
  // displays.
  {
    ScopedSetInternalDisplayIds set_internal({12, 10});
    EXPECT_TRUE(CompareDisplayIds(10, 12));
    EXPECT_TRUE(CompareDisplayIds(10, 9));
    EXPECT_TRUE(CompareDisplayIds(10, 15));
    EXPECT_FALSE(CompareDisplayIds(12, 10));
    EXPECT_TRUE(CompareDisplayIds(12, 9));
    EXPECT_TRUE(CompareDisplayIds(12, 15));
  }
}

}  // namespace display