1/* 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#ifndef INCLUDE_LIBYUV_ROTATE_H_ // NOLINT 12#define INCLUDE_LIBYUV_ROTATE_H_ 13 14#include "libyuv/basic_types.h" 15 16#ifdef __cplusplus 17namespace libyuv { 18extern "C" { 19#endif 20 21// Supported rotation. 22typedef enum RotationMode { 23 kRotate0 = 0, // No rotation. 24 kRotate90 = 90, // Rotate 90 degrees clockwise. 25 kRotate180 = 180, // Rotate 180 degrees. 26 kRotate270 = 270, // Rotate 270 degrees clockwise. 27 28 // Deprecated. 29 kRotateNone = 0, 30 kRotateClockwise = 90, 31 kRotateCounterClockwise = 270, 32} RotationModeEnum; 33 34// Rotate I420 frame. 35LIBYUV_API 36int I420Rotate(const uint8* src_y, int src_stride_y, 37 const uint8* src_u, int src_stride_u, 38 const uint8* src_v, int src_stride_v, 39 uint8* dst_y, int dst_stride_y, 40 uint8* dst_u, int dst_stride_u, 41 uint8* dst_v, int dst_stride_v, 42 int src_width, int src_height, enum RotationMode mode); 43 44// Rotate NV12 input and store in I420. 45LIBYUV_API 46int NV12ToI420Rotate(const uint8* src_y, int src_stride_y, 47 const uint8* src_uv, int src_stride_uv, 48 uint8* dst_y, int dst_stride_y, 49 uint8* dst_u, int dst_stride_u, 50 uint8* dst_v, int dst_stride_v, 51 int src_width, int src_height, enum RotationMode mode); 52 53// Rotate a plane by 0, 90, 180, or 270. 54LIBYUV_API 55int RotatePlane(const uint8* src, int src_stride, 56 uint8* dst, int dst_stride, 57 int src_width, int src_height, enum RotationMode mode); 58 59// Rotate planes by 90, 180, 270. Deprecated. 60LIBYUV_API 61void RotatePlane90(const uint8* src, int src_stride, 62 uint8* dst, int dst_stride, 63 int width, int height); 64 65LIBYUV_API 66void RotatePlane180(const uint8* src, int src_stride, 67 uint8* dst, int dst_stride, 68 int width, int height); 69 70LIBYUV_API 71void RotatePlane270(const uint8* src, int src_stride, 72 uint8* dst, int dst_stride, 73 int width, int height); 74 75LIBYUV_API 76void RotateUV90(const uint8* src, int src_stride, 77 uint8* dst_a, int dst_stride_a, 78 uint8* dst_b, int dst_stride_b, 79 int width, int height); 80 81// Rotations for when U and V are interleaved. 82// These functions take one input pointer and 83// split the data into two buffers while 84// rotating them. Deprecated. 85LIBYUV_API 86void RotateUV180(const uint8* src, int src_stride, 87 uint8* dst_a, int dst_stride_a, 88 uint8* dst_b, int dst_stride_b, 89 int width, int height); 90 91LIBYUV_API 92void RotateUV270(const uint8* src, int src_stride, 93 uint8* dst_a, int dst_stride_a, 94 uint8* dst_b, int dst_stride_b, 95 int width, int height); 96 97// The 90 and 270 functions are based on transposes. 98// Doing a transpose with reversing the read/write 99// order will result in a rotation by +- 90 degrees. 100// Deprecated. 101LIBYUV_API 102void TransposePlane(const uint8* src, int src_stride, 103 uint8* dst, int dst_stride, 104 int width, int height); 105 106LIBYUV_API 107void TransposeUV(const uint8* src, int src_stride, 108 uint8* dst_a, int dst_stride_a, 109 uint8* dst_b, int dst_stride_b, 110 int width, int height); 111 112#ifdef __cplusplus 113} // extern "C" 114} // namespace libyuv 115#endif 116 117#endif // INCLUDE_LIBYUV_ROTATE_H_ NOLINT 118