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Diffstat (limited to 'media/libvpx/libvpx/third_party/libyuv/include/libyuv/rotate.h')
-rw-r--r-- | media/libvpx/libvpx/third_party/libyuv/include/libyuv/rotate.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/third_party/libyuv/include/libyuv/rotate.h b/media/libvpx/libvpx/third_party/libyuv/include/libyuv/rotate.h new file mode 100644 index 0000000000..76b692be8b --- /dev/null +++ b/media/libvpx/libvpx/third_party/libyuv/include/libyuv/rotate.h @@ -0,0 +1,164 @@ +/* + * Copyright 2011 The LibYuv Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef INCLUDE_LIBYUV_ROTATE_H_ +#define INCLUDE_LIBYUV_ROTATE_H_ + +#include "libyuv/basic_types.h" + +#ifdef __cplusplus +namespace libyuv { +extern "C" { +#endif + +// Supported rotation. +typedef enum RotationMode { + kRotate0 = 0, // No rotation. + kRotate90 = 90, // Rotate 90 degrees clockwise. + kRotate180 = 180, // Rotate 180 degrees. + kRotate270 = 270, // Rotate 270 degrees clockwise. + + // Deprecated. + kRotateNone = 0, + kRotateClockwise = 90, + kRotateCounterClockwise = 270, +} RotationModeEnum; + +// Rotate I420 frame. +LIBYUV_API +int I420Rotate(const uint8_t* src_y, + int src_stride_y, + const uint8_t* src_u, + int src_stride_u, + const uint8_t* src_v, + int src_stride_v, + uint8_t* dst_y, + int dst_stride_y, + uint8_t* dst_u, + int dst_stride_u, + uint8_t* dst_v, + int dst_stride_v, + int width, + int height, + enum RotationMode mode); + +// Rotate NV12 input and store in I420. +LIBYUV_API +int NV12ToI420Rotate(const uint8_t* src_y, + int src_stride_y, + const uint8_t* src_uv, + int src_stride_uv, + uint8_t* dst_y, + int dst_stride_y, + uint8_t* dst_u, + int dst_stride_u, + uint8_t* dst_v, + int dst_stride_v, + int width, + int height, + enum RotationMode mode); + +// Rotate a plane by 0, 90, 180, or 270. +LIBYUV_API +int RotatePlane(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, + int width, + int height, + enum RotationMode mode); + +// Rotate planes by 90, 180, 270. Deprecated. +LIBYUV_API +void RotatePlane90(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, + int width, + int height); + +LIBYUV_API +void RotatePlane180(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, + int width, + int height); + +LIBYUV_API +void RotatePlane270(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, + int width, + int height); + +LIBYUV_API +void RotateUV90(const uint8_t* src, + int src_stride, + uint8_t* dst_a, + int dst_stride_a, + uint8_t* dst_b, + int dst_stride_b, + int width, + int height); + +// Rotations for when U and V are interleaved. +// These functions take one input pointer and +// split the data into two buffers while +// rotating them. Deprecated. +LIBYUV_API +void RotateUV180(const uint8_t* src, + int src_stride, + uint8_t* dst_a, + int dst_stride_a, + uint8_t* dst_b, + int dst_stride_b, + int width, + int height); + +LIBYUV_API +void RotateUV270(const uint8_t* src, + int src_stride, + uint8_t* dst_a, + int dst_stride_a, + uint8_t* dst_b, + int dst_stride_b, + int width, + int height); + +// The 90 and 270 functions are based on transposes. +// Doing a transpose with reversing the read/write +// order will result in a rotation by +- 90 degrees. +// Deprecated. +LIBYUV_API +void TransposePlane(const uint8_t* src, + int src_stride, + uint8_t* dst, + int dst_stride, + int width, + int height); + +LIBYUV_API +void TransposeUV(const uint8_t* src, + int src_stride, + uint8_t* dst_a, + int dst_stride_a, + uint8_t* dst_b, + int dst_stride_b, + int width, + int height); + +#ifdef __cplusplus +} // extern "C" +} // namespace libyuv +#endif + +#endif // INCLUDE_LIBYUV_ROTATE_H_ |