libyuv/source/rotate_priv.h
frkoenig@google.com 3de12ae1c6 I420 and NV12 rotate functions.
Consolidate rotate files.  Add unit tests for I420
and NV12 rotate functions.  Fix remaining pitch/stride
references.
Review URL: http://webrtc-codereview.appspot.com/239001

git-svn-id: http://libyuv.googlecode.com/svn/trunk@32 16f28f9a-4ce2-e073-06de-1de4eb20be90
2011-10-19 17:52:15 +00:00

73 lines
2.1 KiB
C++

/*
* Copyright (c) 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 SOURCE_ROTATE_PRIV_H_
#define SOURCE_ROTATE_PRIV_H_
#include "libyuv/basic_types.h"
namespace libyuv {
// Rotate planes by 90, 180, 270
void
RotatePlane90(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height);
void
RotatePlane180(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height);
void
RotatePlane270(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height);
void
RotateUV90(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* 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.
void
RotateUV180(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width, int height);
void
RotateUV270(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* 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.
void
TransposePlane(const uint8* src, int src_stride,
uint8* dst, int dst_stride,
int width, int height);
void
TransposeUV(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width, int height);
} // namespace libyuv
#endif // SOURCE_ROTATE_PRIV_H_