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 17 namespace libyuv { 18 extern "C" { 19 #endif 20 21 // Supported rotation. 22 typedef 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. 35 LIBYUV_API 36 int 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. 45 LIBYUV_API 46 int 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. 54 LIBYUV_API 55 int 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. 60 LIBYUV_API 61 void RotatePlane90(const uint8* src, int src_stride, 62 uint8* dst, int dst_stride, 63 int width, int height); 64 65 LIBYUV_API 66 void RotatePlane180(const uint8* src, int src_stride, 67 uint8* dst, int dst_stride, 68 int width, int height); 69 70 LIBYUV_API 71 void RotatePlane270(const uint8* src, int src_stride, 72 uint8* dst, int dst_stride, 73 int width, int height); 74 75 LIBYUV_API 76 void 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. 85 LIBYUV_API 86 void 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 91 LIBYUV_API 92 void 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. 101 LIBYUV_API 102 void TransposePlane(const uint8* src, int src_stride, 103 uint8* dst, int dst_stride, 104 int width, int height); 105 106 LIBYUV_API 107 void 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
