ui/display/util/edid_parser.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_DISPLAY_UTIL_EDID_PARSER_H_
   6 #define UI_DISPLAY_UTIL_EDID_PARSER_H_
   7
   8 #include <stdint.h>
   9
  10 #include <string>
  11 #include <vector>
  12
  13 #include "ui/display/util/display_util_export.h"
  14
  15 namespace gfx {
  16 class Size;
  17 }
  18
  19 // EDID (Extended Display Identification Data) is a format for monitor
  20 // metadata. This provides a parser for the data.
  21
  22 namespace ui {
  23
  24 // Generates the display id and product id for the pair of |edid| and |index|,
  25 // and store in |display_id_out| and |product_id_out|. Returns true if the
  26 // display id is successfully generated, or false otherwise.
  27 DISPLAY_UTIL_EXPORT bool GetDisplayIdFromEDID(const std::vector<uint8_t>& edid,
  28                                               uint8_t index,
  29                                               int64_t* display_id_out,
  30                                               int64_t* product_id_out);
  31
  32 // Parses |edid| as EDID data and stores extracted data into |manufacturer_id|,
  33 // |product_code|, |human_readable_name|, |active_pixel_out| and
  34 // |physical_display_size_out|, then returns true. nullptr can be passed for
  35 // unwanted output parameters.  Some devices (especially internal displays) may
  36 // not have the field for |human_readable_name|, and it will return true in
  37 // that case.
  38 DISPLAY_UTIL_EXPORT bool ParseOutputDeviceData(
  39     const std::vector<uint8_t>& edid,
  40     uint16_t* manufacturer_id,
  41     uint16_t* product_code,
  42     std::string* human_readable_name,
  43     gfx::Size* active_pixel_out,
  44     gfx::Size* physical_display_size_out);
  45
  46 DISPLAY_UTIL_EXPORT bool ParseOutputOverscanFlag(
  47     const std::vector<uint8_t>& edid,
  48     bool* flag);
  49
  50 }  // namespace ui
  51
  52 #endif // UI_DISPLAY_UTIL_EDID_PARSER_H_