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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_ENUM_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_ENUM_H_
namespace blink {
// This enum intentionally matches the orientation values from the EXIF spec.
// See JEITA CP-3451, page 18. http://www.exif.org/Exif2-2.PDF
// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused.
enum class ImageOrientationEnum : int8_t {
// "TopLeft" means that the 0 row starts at the Top, the 0 column starts at
// the Left.
kOriginTopLeft = 1, // default
kOriginTopRight = 2, // mirror along y-axis
kOriginBottomRight = 3, // 180 degree rotation
kOriginBottomLeft = 4, // mirror along the x-axis
kOriginLeftTop = 5, // mirror along x-axis + 270 degree CW rotation
kOriginRightTop = 6, // 90 degree CW rotation
kOriginRightBottom = 7, // mirror along x-axis + 90 degree CW rotation
kOriginLeftBottom = 8, // 270 degree CW rotation
// All other values are "reserved" as of EXIF 2.2
kDefault = kOriginTopLeft,
kMinValue = kOriginTopLeft,
kMaxValue = kOriginLeftBottom,
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_IMAGE_ORIENTATION_ENUM_H_
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