1// Copyright (c) 2013 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 "base/x11/edid_parser_x11.h" 6 7#include "base/memory/scoped_ptr.h" 8#include "testing/gtest/include/gtest/gtest.h" 9 10#include <X11/extensions/Xrandr.h> 11 12namespace base { 13 14namespace { 15 16// Returns the number of characters in the string literal but doesn't count its 17// terminator NULL byte. 18#define charsize(str) (arraysize(str) - 1) 19 20// Sample EDID data extracted from real devices. 21const unsigned char kNormalDisplay[] = 22 "\x00\xff\xff\xff\xff\xff\xff\x00\x22\xf0\x6c\x28\x01\x01\x01\x01" 23 "\x02\x16\x01\x04\xb5\x40\x28\x78\xe2\x8d\x85\xad\x4f\x35\xb1\x25" 24 "\x0e\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" 25 "\x01\x01\x01\x01\x01\x01\xe2\x68\x00\xa0\xa0\x40\x2e\x60\x30\x20" 26 "\x36\x00\x81\x90\x21\x00\x00\x1a\xbc\x1b\x00\xa0\x50\x20\x17\x30" 27 "\x30\x20\x36\x00\x81\x90\x21\x00\x00\x1a\x00\x00\x00\xfc\x00\x48" 28 "\x50\x20\x5a\x52\x33\x30\x77\x0a\x20\x20\x20\x20\x00\x00\x00\xff" 29 "\x00\x43\x4e\x34\x32\x30\x32\x31\x33\x37\x51\x0a\x20\x20\x00\x71"; 30 31const unsigned char kInternalDisplay[] = 32 "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\xa3\x42\x31\x00\x00\x00\x00" 33 "\x00\x15\x01\x03\x80\x1a\x10\x78\x0a\xd3\xe5\x95\x5c\x60\x90\x27" 34 "\x19\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" 35 "\x01\x01\x01\x01\x01\x01\x9e\x1b\x00\xa0\x50\x20\x12\x30\x10\x30" 36 "\x13\x00\x05\xa3\x10\x00\x00\x19\x00\x00\x00\x0f\x00\x00\x00\x00" 37 "\x00\x00\x00\x00\x00\x23\x87\x02\x64\x00\x00\x00\x00\xfe\x00\x53" 38 "\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x00\x00\x00\xfe" 39 "\x00\x31\x32\x31\x41\x54\x31\x31\x2d\x38\x30\x31\x0a\x20\x00\x45"; 40 41const unsigned char kOverscanDisplay[] = 42 "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\x2d\xfe\x08\x00\x00\x00\x00" 43 "\x29\x15\x01\x03\x80\x10\x09\x78\x0a\xee\x91\xa3\x54\x4c\x99\x26" 44 "\x0f\x50\x54\xbd\xef\x80\x71\x4f\x81\xc0\x81\x00\x81\x80\x95\x00" 45 "\xa9\xc0\xb3\x00\x01\x01\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c" 46 "\x45\x00\xa0\x5a\x00\x00\x00\x1e\x66\x21\x56\xaa\x51\x00\x1e\x30" 47 "\x46\x8f\x33\x00\xa0\x5a\x00\x00\x00\x1e\x00\x00\x00\xfd\x00\x18" 48 "\x4b\x0f\x51\x17\x00\x0a\x20\x20\x20\x20\x20\x20\x00\x00\x00\xfc" 49 "\x00\x53\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x01\x1d" 50 "\x02\x03\x1f\xf1\x47\x90\x04\x05\x03\x20\x22\x07\x23\x09\x07\x07" 51 "\x83\x01\x00\x00\xe2\x00\x0f\x67\x03\x0c\x00\x20\x00\xb8\x2d\x01" 52 "\x1d\x80\x18\x71\x1c\x16\x20\x58\x2c\x25\x00\xa0\x5a\x00\x00\x00" 53 "\x9e\x01\x1d\x00\x72\x51\xd0\x1e\x20\x6e\x28\x55\x00\xa0\x5a\x00" 54 "\x00\x00\x1e\x8c\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\xa0" 55 "\x5a\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" 56 "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" 57 "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc6"; 58 59const unsigned char kLP2565A[] = 60 "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00\x22\xF0\x76\x26\x01\x01\x01\x01" 61 "\x02\x12\x01\x03\x80\x34\x21\x78\xEE\xEF\x95\xA3\x54\x4C\x9B\x26" 62 "\x0F\x50\x54\xA5\x6B\x80\x81\x40\x81\x80\x81\x99\x71\x00\xA9\x00" 63 "\xA9\x40\xB3\x00\xD1\x00\x28\x3C\x80\xA0\x70\xB0\x23\x40\x30\x20" 64 "\x36\x00\x07\x44\x21\x00\x00\x1A\x00\x00\x00\xFD\x00\x30\x55\x1E" 65 "\x5E\x11\x00\x0A\x20\x20\x20\x20\x20\x20\x00\x00\x00\xFC\x00\x48" 66 "\x50\x20\x4C\x50\x32\x34\x36\x35\x0A\x20\x20\x20\x00\x00\x00\xFF" 67 "\x00\x43\x4E\x4B\x38\x30\x32\x30\x34\x48\x4D\x0A\x20\x20\x00\xA4"; 68 69const unsigned char kLP2565B[] = 70 "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00\x22\xF0\x75\x26\x01\x01\x01\x01" 71 "\x02\x12\x01\x03\x6E\x34\x21\x78\xEE\xEF\x95\xA3\x54\x4C\x9B\x26" 72 "\x0F\x50\x54\xA5\x6B\x80\x81\x40\x71\x00\xA9\x00\xA9\x40\xA9\x4F" 73 "\xB3\x00\xD1\xC0\xD1\x00\x28\x3C\x80\xA0\x70\xB0\x23\x40\x30\x20" 74 "\x36\x00\x07\x44\x21\x00\x00\x1A\x00\x00\x00\xFD\x00\x30\x55\x1E" 75 "\x5E\x15\x00\x0A\x20\x20\x20\x20\x20\x20\x00\x00\x00\xFC\x00\x48" 76 "\x50\x20\x4C\x50\x32\x34\x36\x35\x0A\x20\x20\x20\x00\x00\x00\xFF" 77 "\x00\x43\x4E\x4B\x38\x30\x32\x30\x34\x48\x4D\x0A\x20\x20\x00\x45"; 78 79} // namespace 80 81TEST(EdidParserX11Test, ParseEDID) { 82 uint16 manufacturer_id = 0; 83 std::string human_readable_name; 84 EXPECT_TRUE(ParseOutputDeviceData( 85 kNormalDisplay, charsize(kNormalDisplay), 86 &manufacturer_id, &human_readable_name)); 87 EXPECT_EQ(0x22f0u, manufacturer_id); 88 EXPECT_EQ("HP ZR30w", human_readable_name); 89 90 manufacturer_id = 0; 91 human_readable_name.clear(); 92 EXPECT_TRUE(ParseOutputDeviceData( 93 kInternalDisplay, charsize(kInternalDisplay), 94 &manufacturer_id, NULL)); 95 EXPECT_EQ(0x4ca3u, manufacturer_id); 96 EXPECT_EQ("", human_readable_name); 97 98 // Internal display doesn't have name. 99 EXPECT_TRUE(ParseOutputDeviceData( 100 kInternalDisplay, charsize(kInternalDisplay), 101 NULL, &human_readable_name)); 102 EXPECT_TRUE(human_readable_name.empty()); 103 104 manufacturer_id = 0; 105 human_readable_name.clear(); 106 EXPECT_TRUE(ParseOutputDeviceData( 107 kOverscanDisplay, charsize(kOverscanDisplay), 108 &manufacturer_id, &human_readable_name)); 109 EXPECT_EQ(0x4c2du, manufacturer_id); 110 EXPECT_EQ("SAMSUNG", human_readable_name); 111} 112 113TEST(EdidParserX11Test, ParseBrokenEDID) { 114 uint16 manufacturer_id = 0; 115 std::string human_readable_name; 116 117 // length == 0 118 EXPECT_FALSE(ParseOutputDeviceData( 119 kNormalDisplay, 0, 120 &manufacturer_id, &human_readable_name)); 121 122 // name is broken. Copying kNormalDisplay and substitute its name data by 123 // some control code. 124 std::string display_data( 125 reinterpret_cast<const char*>(kNormalDisplay), charsize(kNormalDisplay)); 126 127 // display's name data is embedded in byte 95-107 in this specific example. 128 // Fix here too when the contents of kNormalDisplay is altered. 129 display_data[97] = '\x1b'; 130 EXPECT_FALSE(ParseOutputDeviceData( 131 reinterpret_cast<const unsigned char*>(display_data.data()), 132 display_data.size(), 133 &manufacturer_id, &human_readable_name)); 134 135 // If |human_readable_name| isn't specified, it skips parsing the name. 136 manufacturer_id = 0; 137 EXPECT_TRUE(ParseOutputDeviceData( 138 reinterpret_cast<const unsigned char*>(display_data.data()), 139 display_data.size(), 140 &manufacturer_id, NULL)); 141 EXPECT_EQ(0x22f0u, manufacturer_id); 142} 143 144TEST(EdidParserX11Test, GetDisplayId) { 145 // EDID of kLP2565A and B are slightly different but actually the same device. 146 int64 id1 = -1; 147 int64 id2 = -1; 148 EXPECT_TRUE(GetDisplayIdFromEDID(kLP2565A, charsize(kLP2565A), 0, &id1)); 149 EXPECT_TRUE(GetDisplayIdFromEDID(kLP2565B, charsize(kLP2565B), 0, &id2)); 150 EXPECT_EQ(id1, id2); 151 EXPECT_NE(-1, id1); 152} 153 154TEST(EdidParserX11Test, GetDisplayIdFromInternal) { 155 int64 id = -1; 156 EXPECT_TRUE(GetDisplayIdFromEDID( 157 kInternalDisplay, charsize(kInternalDisplay), 0, &id)); 158 EXPECT_NE(-1, id); 159} 160 161TEST(EdidParserX11Test, GetDisplayIdFailure) { 162 int64 id = -1; 163 EXPECT_FALSE(GetDisplayIdFromEDID(NULL, 0, 0, &id)); 164 EXPECT_EQ(-1, id); 165} 166 167} // namespace base 168