chromium/third_party/skia/include/codec/SkEncodedOrigin.h

/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef SkEncodedOrigin_DEFINED
#define SkEncodedOrigin_DEFINED

#include "include/core/SkMatrix.h"

// These values match the orientation www.exif.org/Exif2-2.PDF.
enum SkEncodedOrigin { … };

/**
 * Given an encoded origin and the width and height of the source data, returns a matrix
 * that transforms the source rectangle with upper left corner at [0, 0] and origin to a correctly
 * oriented destination rectangle of [0, 0, w, h].
 */
static inline SkMatrix SkEncodedOriginToMatrix(SkEncodedOrigin origin, int w, int h) { … }

/**
 * Return true if the encoded origin includes a 90 degree rotation, in which case the width
 * and height of the source data are swapped relative to a correctly oriented destination.
 */
static inline bool SkEncodedOriginSwapsWidthHeight(SkEncodedOrigin origin) { … }

#endif // SkEncodedOrigin_DEFINED