| // Copyright 2014 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. |
| |
| #ifndef UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |
| #define UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |
| |
| #include <stdint.h> |
| |
| #include "ui/display/util/display_util_export.h" |
| #include "ui/gfx/geometry/size.h" |
| |
| namespace display { |
| |
| // 1 inch in mm. |
| constexpr float kInchInMm = 25.4f; |
| |
| // Returns true if a given size is in the list of bogus sizes in mm that should |
| // be ignored. |
| DISPLAY_UTIL_EXPORT bool IsDisplaySizeBlackListed( |
| const gfx::Size& physical_size); |
| |
| // Returns 64-bit persistent ID for the specified manufacturer's ID and |
| // product_code_hash, and the index of the output it is connected to. |
| // |output_index| is used to distinguish the displays of the same type. For |
| // example, swapping two identical display between two outputs will not be |
| // treated as swap. The 'serial number' field in EDID isn't used here because |
| // it is not guaranteed to have unique number and it may have the same fixed |
| // value (like 0). |
| DISPLAY_UTIL_EXPORT int64_t GenerateDisplayID(uint16_t manufacturer_id, |
| uint32_t product_code_hash, |
| uint8_t output_index); |
| |
| } // namespace display |
| |
| #endif // UI_DISPLAY_UTIL_DISPLAY_UTIL_H_ |