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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ | 5 #ifndef UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |
6 #define UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ | 6 #define UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |
7 | 7 |
8 #include "ui/display/util/display_util_export.h" | 8 #include "ui/display/util/display_util_export.h" |
9 #include "ui/gfx/geometry/size.h" | 9 #include "ui/gfx/geometry/size.h" |
10 | 10 |
11 namespace ui { | 11 namespace ui { |
12 | 12 |
13 // Returns true if a given size is in the list of bogus sizes in mm that should | 13 // Returns true if a given size is in the list of bogus sizes in mm that should |
14 // be ignored. | 14 // be ignored. |
15 DISPLAY_UTIL_EXPORT bool IsDisplaySizeBlackListed( | 15 DISPLAY_UTIL_EXPORT bool IsDisplaySizeBlackListed( |
16 const gfx::Size& physical_size); | 16 const gfx::Size& physical_size); |
17 | 17 |
18 // Returns the desired device scale factor for the display with the given | 18 // Returns the desired device scale factor for the display with the given |
19 // physical_size and resoultion. | 19 // physical_size and resoultion. |
20 DISPLAY_UTIL_EXPORT float GetScaleFactor( | 20 DISPLAY_UTIL_EXPORT float GetScaleFactor( |
21 const gfx::Size& physical_size_in_mm, | 21 const gfx::Size& physical_size_in_mm, |
22 const gfx::Size& screen_size_in_pixels); | 22 const gfx::Size& screen_size_in_pixels); |
23 | 23 |
24 // Returns 64-bit persistent ID for the specified manufacturer's ID and | |
25 // product_code_hash, and the index of the output it is connected to. | |
26 // |output_index| is used to distinguish the displays of the same type. For | |
27 // example, swapping two identical display between two outputs will not be | |
28 // treated as swap. The 'serial number' field in EDID isn't used here because | |
29 // it is not guaranteed to have unique number and it may have the same fixed | |
30 // value (like 0). | |
31 DISPLAY_UTIL_EXPORT int64_t GetDisplayID(uint16_t manufacturer_id, | |
oshima
2015/12/02 20:34:27
Generate/Create DisplayID (whichever you prefer)
robert.bradford
2015/12/03 18:44:57
Done -> GenerateDisplayID.
| |
32 uint32_t product_code_hash, | |
33 uint8_t output_index); | |
34 | |
24 } // namespace ui | 35 } // namespace ui |
25 | 36 |
26 #endif // UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ | 37 #endif // UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |
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