| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chromeos/display/output_util.h" |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| #include <X11/extensions/Xrandr.h> |
| |
| namespace chromeos { |
| |
| namespace { |
| |
| // Returns the number of characters in the string literal but doesn't count its |
| // terminator NULL byte. |
| #define charsize(str) (arraysize(str) - 1) |
| |
| // Sample EDID data extracted from real devices. |
| const unsigned char kNormalDisplay[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x22\xf0\x6c\x28\x01\x01\x01\x01" |
| "\x02\x16\x01\x04\xb5\x40\x28\x78\xe2\x8d\x85\xad\x4f\x35\xb1\x25" |
| "\x0e\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" |
| "\x01\x01\x01\x01\x01\x01\xe2\x68\x00\xa0\xa0\x40\x2e\x60\x30\x20" |
| "\x36\x00\x81\x90\x21\x00\x00\x1a\xbc\x1b\x00\xa0\x50\x20\x17\x30" |
| "\x30\x20\x36\x00\x81\x90\x21\x00\x00\x1a\x00\x00\x00\xfc\x00\x48" |
| "\x50\x20\x5a\x52\x33\x30\x77\x0a\x20\x20\x20\x20\x00\x00\x00\xff" |
| "\x00\x43\x4e\x34\x32\x30\x32\x31\x33\x37\x51\x0a\x20\x20\x00\x71"; |
| |
| const unsigned char kInternalDisplay[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\xa3\x42\x31\x00\x00\x00\x00" |
| "\x00\x15\x01\x03\x80\x1a\x10\x78\x0a\xd3\xe5\x95\x5c\x60\x90\x27" |
| "\x19\x50\x54\x00\x00\x00\x01\x01\x01\x01\x01\x01\x01\x01\x01\x01" |
| "\x01\x01\x01\x01\x01\x01\x9e\x1b\x00\xa0\x50\x20\x12\x30\x10\x30" |
| "\x13\x00\x05\xa3\x10\x00\x00\x19\x00\x00\x00\x0f\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x23\x87\x02\x64\x00\x00\x00\x00\xfe\x00\x53" |
| "\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x00\x00\x00\xfe" |
| "\x00\x31\x32\x31\x41\x54\x31\x31\x2d\x38\x30\x31\x0a\x20\x00\x45"; |
| |
| const unsigned char kOverscanDisplay[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x4c\x2d\xfe\x08\x00\x00\x00\x00" |
| "\x29\x15\x01\x03\x80\x10\x09\x78\x0a\xee\x91\xa3\x54\x4c\x99\x26" |
| "\x0f\x50\x54\xbd\xef\x80\x71\x4f\x81\xc0\x81\x00\x81\x80\x95\x00" |
| "\xa9\xc0\xb3\x00\x01\x01\x02\x3a\x80\x18\x71\x38\x2d\x40\x58\x2c" |
| "\x45\x00\xa0\x5a\x00\x00\x00\x1e\x66\x21\x56\xaa\x51\x00\x1e\x30" |
| "\x46\x8f\x33\x00\xa0\x5a\x00\x00\x00\x1e\x00\x00\x00\xfd\x00\x18" |
| "\x4b\x0f\x51\x17\x00\x0a\x20\x20\x20\x20\x20\x20\x00\x00\x00\xfc" |
| "\x00\x53\x41\x4d\x53\x55\x4e\x47\x0a\x20\x20\x20\x20\x20\x01\x1d" |
| "\x02\x03\x1f\xf1\x47\x90\x04\x05\x03\x20\x22\x07\x23\x09\x07\x07" |
| "\x83\x01\x00\x00\xe2\x00\x0f\x67\x03\x0c\x00\x20\x00\xb8\x2d\x01" |
| "\x1d\x80\x18\x71\x1c\x16\x20\x58\x2c\x25\x00\xa0\x5a\x00\x00\x00" |
| "\x9e\x01\x1d\x00\x72\x51\xd0\x1e\x20\x6e\x28\x55\x00\xa0\x5a\x00" |
| "\x00\x00\x1e\x8c\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\xa0" |
| "\x5a\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc6"; |
| |
| // The EDID info misdetecting overscan once. see crbug.com/226318 |
| const unsigned char kMisdetecedDisplay[] = |
| "\x00\xff\xff\xff\xff\xff\xff\x00\x10\xac\x64\x40\x4c\x30\x30\x32" |
| "\x0c\x15\x01\x03\x80\x40\x28\x78\xea\x8d\x85\xad\x4f\x35\xb1\x25" |
| "\x0e\x50\x54\xa5\x4b\x00\x71\x4f\x81\x00\x81\x80\xd1\x00\xa9\x40" |
| "\x01\x01\x01\x01\x01\x01\x28\x3c\x80\xa0\x70\xb0\x23\x40\x30\x20" |
| "\x36\x00\x81\x91\x21\x00\x00\x1a\x00\x00\x00\xff\x00\x50\x48\x35" |
| "\x4e\x59\x31\x33\x4e\x32\x30\x30\x4c\x0a\x00\x00\x00\xfc\x00\x44" |
| "\x45\x4c\x4c\x20\x55\x33\x30\x31\x31\x0a\x20\x20\x00\x00\x00\xfd" |
| "\x00\x31\x56\x1d\x5e\x12\x00\x0a\x20\x20\x20\x20\x20\x20\x01\x38" |
| "\x02\x03\x29\xf1\x50\x90\x05\x04\x03\x02\x07\x16\x01\x06\x11\x12" |
| "\x15\x13\x14\x1f\x20\x23\x0d\x7f\x07\x83\x0f\x00\x00\x67\x03\x0c" |
| "\x00\x10\x00\x38\x2d\xe3\x05\x03\x01\x02\x3a\x80\x18\x71\x38\x2d" |
| "\x40\x58\x2c\x45\x00\x81\x91\x21\x00\x00\x1e\x01\x1d\x80\x18\x71" |
| "\x1c\x16\x20\x58\x2c\x25\x00\x81\x91\x21\x00\x00\x9e\x01\x1d\x00" |
| "\x72\x51\xd0\x1e\x20\x6e\x28\x55\x00\x81\x91\x21\x00\x00\x1e\x8c" |
| "\x0a\xd0\x8a\x20\xe0\x2d\x10\x10\x3e\x96\x00\x81\x91\x21\x00\x00" |
| "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x94"; |
| |
| } // namespace |
| |
| TEST(OutputUtilTest, ParseOverscanFlag) { |
| bool flag = false; |
| EXPECT_FALSE(ParseOutputOverscanFlag( |
| kNormalDisplay, charsize(kNormalDisplay), &flag)); |
| |
| flag = false; |
| EXPECT_FALSE(ParseOutputOverscanFlag( |
| kInternalDisplay, charsize(kInternalDisplay), &flag)); |
| |
| flag = false; |
| EXPECT_TRUE(ParseOutputOverscanFlag( |
| kOverscanDisplay, charsize(kOverscanDisplay), &flag)); |
| EXPECT_TRUE(flag); |
| |
| flag = false; |
| EXPECT_FALSE(ParseOutputOverscanFlag( |
| kMisdetecedDisplay, charsize(kMisdetecedDisplay), &flag)); |
| |
| flag = false; |
| // Copy |kOverscanDisplay| and set flags to false in it. The overscan flags |
| // are embedded at byte 150 in this specific example. Fix here too when the |
| // contents of kOverscanDisplay is altered. |
| std::string display_data(reinterpret_cast<const char*>(kOverscanDisplay), |
| charsize(kOverscanDisplay)); |
| display_data[150] = '\0'; |
| EXPECT_TRUE(ParseOutputOverscanFlag( |
| reinterpret_cast<const unsigned char*>(display_data.data()), |
| display_data.size(), &flag)); |
| EXPECT_FALSE(flag); |
| } |
| |
| TEST(OutputUtilTest, ParseBrokenOverscanData) { |
| // Do not fill valid data here because it anyway fails to parse the data. |
| scoped_ptr<unsigned char[]> data(new unsigned char[126]); |
| bool flag = false; |
| EXPECT_FALSE(ParseOutputOverscanFlag(data.get(), 0, &flag)); |
| EXPECT_FALSE(ParseOutputOverscanFlag(data.get(), 126, &flag)); |
| |
| // extending data because ParseOutputOverscanFlag() will access the data. |
| data.reset(new unsigned char[150]); |
| // The number of CEA extensions is stored at byte 126. |
| data[126] = '\x01'; |
| EXPECT_FALSE(ParseOutputOverscanFlag(data.get(), 128, &flag)); |
| EXPECT_FALSE(ParseOutputOverscanFlag(data.get(), 150, &flag)); |
| } |
| |
| TEST(OutputUtilTest, IsInternalOutputName) { |
| EXPECT_TRUE(IsInternalOutputName("LVDS")); |
| EXPECT_TRUE(IsInternalOutputName("eDP")); |
| EXPECT_TRUE(IsInternalOutputName("DSI")); |
| EXPECT_TRUE(IsInternalOutputName("LVDSxx")); |
| EXPECT_TRUE(IsInternalOutputName("eDPzz")); |
| EXPECT_TRUE(IsInternalOutputName("DSIyy")); |
| |
| EXPECT_FALSE(IsInternalOutputName("xyz")); |
| EXPECT_FALSE(IsInternalOutputName("abcLVDS")); |
| EXPECT_FALSE(IsInternalOutputName("cdeeDP")); |
| EXPECT_FALSE(IsInternalOutputName("abcDSI")); |
| EXPECT_FALSE(IsInternalOutputName("LVD")); |
| EXPECT_FALSE(IsInternalOutputName("eD")); |
| EXPECT_FALSE(IsInternalOutputName("DS")); |
| } |
| |
| } // namespace chromeos |