rotate.cc | Explore in Territory

/*
 *  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.
 */

#include <assert.h>

#include "libyuv/rotate.h"

#include "libyuv/convert.h"
#include "libyuv/cpu_id.h"
#include "libyuv/planar_functions.h"
#include "libyuv/rotate_row.h"
#include "libyuv/row.h"

#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif

LIBYUV_API
void TransposePlane(const uint8_t* src,
                    int src_stride,
                    uint8_t* dst,
                    int dst_stride,
                    int width,
                    int height) { … }

LIBYUV_API
void RotatePlane90(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 RotatePlane180(const uint8_t* src,
                    int src_stride,
                    uint8_t* dst,
                    int dst_stride,
                    int width,
                    int height) { … }

LIBYUV_API
void SplitTransposeUV(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 SplitRotateUV90(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 SplitRotateUV270(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) { … }

// Rotate 180 is a horizontal and vertical flip.
LIBYUV_API
void SplitRotateUV180(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) { … }

// Rotate UV and split into planar.
// width and height expected to be half size for NV12
LIBYUV_API
int SplitRotateUV(const uint8_t* src_uv,
                  int src_stride_uv,
                  uint8_t* dst_u,
                  int dst_stride_u,
                  uint8_t* dst_v,
                  int dst_stride_v,
                  int width,
                  int height,
                  enum RotationMode mode) { … }

LIBYUV_API
int RotatePlane(const uint8_t* src,
                int src_stride,
                uint8_t* dst,
                int dst_stride,
                int width,
                int height,
                enum RotationMode mode) { … }

static void TransposePlane_16(const uint16_t* src,
                              int src_stride,
                              uint16_t* dst,
                              int dst_stride,
                              int width,
                              int height) { … }

static void RotatePlane90_16(const uint16_t* src,
                             int src_stride,
                             uint16_t* dst,
                             int dst_stride,
                             int width,
                             int height) { … }

static void RotatePlane270_16(const uint16_t* src,
                              int src_stride,
                              uint16_t* dst,
                              int dst_stride,
                              int width,
                              int height) { … }

static void RotatePlane180_16(const uint16_t* src,
                              int src_stride,
                              uint16_t* dst,
                              int dst_stride,
                              int width,
                              int height) { … }

LIBYUV_API
int RotatePlane_16(const uint16_t* src,
                   int src_stride,
                   uint16_t* dst,
                   int dst_stride,
                   int width,
                   int height,
                   enum RotationMode mode) { … }

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) { … }

// I422 has half width x full height UV planes, so rotate by 90 and 270
// require scaling to maintain 422 subsampling.
LIBYUV_API
int I422Rotate(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) { … }

LIBYUV_API
int I444Rotate(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) { … }

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) { … }

static void SplitPixels(const uint8_t* src_u,
                        int src_pixel_stride_uv,
                        uint8_t* dst_u,
                        int width) { … }

// Convert Android420 to I420 with Rotate
LIBYUV_API
int Android420ToI420Rotate(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,
                           int src_pixel_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 rotation) { … }

LIBYUV_API
int I010Rotate(const uint16_t* src_y,
               int src_stride_y,
               const uint16_t* src_u,
               int src_stride_u,
               const uint16_t* src_v,
               int src_stride_v,
               uint16_t* dst_y,
               int dst_stride_y,
               uint16_t* dst_u,
               int dst_stride_u,
               uint16_t* dst_v,
               int dst_stride_v,
               int width,
               int height,
               enum RotationMode mode) { … }

// I210 has half width x full height UV planes, so rotate by 90 and 270
// require scaling to maintain 422 subsampling.
LIBYUV_API
int I210Rotate(const uint16_t* src_y,
               int src_stride_y,
               const uint16_t* src_u,
               int src_stride_u,
               const uint16_t* src_v,
               int src_stride_v,
               uint16_t* dst_y,
               int dst_stride_y,
               uint16_t* dst_u,
               int dst_stride_u,
               uint16_t* dst_v,
               int dst_stride_v,
               int width,
               int height,
               enum RotationMode mode) { … }

LIBYUV_API
int I410Rotate(const uint16_t* src_y,
               int src_stride_y,
               const uint16_t* src_u,
               int src_stride_u,
               const uint16_t* src_v,
               int src_stride_v,
               uint16_t* dst_y,
               int dst_stride_y,
               uint16_t* dst_u,
               int dst_stride_u,
               uint16_t* dst_v,
               int dst_stride_v,
               int width,
               int height,
               enum RotationMode mode) { … }

#ifdef __cplusplus
}  // extern "C"
}  // namespace libyuv
#endif
chromium/third_party/libyuv/source/rotate.cc
