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// 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/color_space.h"
#include "ui/gfx/geometry/size.h"
namespace display {
class EdidParser;
// 1 inch in mm.
constexpr float kInchInMm = 25.4f;
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class EdidColorSpaceChecksOutcome {
kSuccess = 0,
kErrorBadCoordinates = 1,
kErrorPrimariesAreaTooSmall = 2,
kErrorBluePrimaryIsBroken = 3,
kErrorCannotExtractToXYZD50 = 4,
kErrorBadGamma = 5,
kMaxValue = kErrorBadGamma
};
// Returns true if a given size is allowed. Will return false for certain bogus
// sizes in mm that should be ignored.
DISPLAY_UTIL_EXPORT bool IsDisplaySizeValid(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);
// Uses |edid_parser| to extract a gfx::ColorSpace which will be IsValid() if
// both gamma and the color primaries were correctly found.
DISPLAY_UTIL_EXPORT gfx::ColorSpace GetColorSpaceFromEdid(
const display::EdidParser& edid_parser);
} // namespace display
#endif // UI_DISPLAY_UTIL_DISPLAY_UTIL_H_
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