shithub: libvpx

ref: f74e0229d5575af20498a9dbf48f1d305dfc8719
dir: libvpx/vp8/common/reconintra4x4.h

/*
 *  Copyright (c) 2010 The WebM 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 VPX_VP8_COMMON_RECONINTRA4X4_H_
#define VPX_VP8_COMMON_RECONINTRA4X4_H_
#include "vp8/common/blockd.h"

#ifdef __cplusplus
extern "C" {
#endif

static INLINE void intra_prediction_down_copy(MACROBLOCKD *xd,
                                              unsigned char *above_right_src) {
  int dst_stride = xd->dst.y_stride;
  unsigned char *above_right_dst = xd->dst.y_buffer - dst_stride + 16;

  unsigned int *src_ptr = (unsigned int *)above_right_src;
  unsigned int *dst_ptr0 = (unsigned int *)(above_right_dst + 4 * dst_stride);
  unsigned int *dst_ptr1 = (unsigned int *)(above_right_dst + 8 * dst_stride);
  unsigned int *dst_ptr2 = (unsigned int *)(above_right_dst + 12 * dst_stride);

  *dst_ptr0 = *src_ptr;
  *dst_ptr1 = *src_ptr;
  *dst_ptr2 = *src_ptr;
}

void vp8_intra4x4_predict(unsigned char *above, unsigned char *yleft,
                          int left_stride, B_PREDICTION_MODE b_mode,
                          unsigned char *dst, int dst_stride,
                          unsigned char top_left);

void vp8_init_intra4x4_predictors_internal(void);

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VPX_VP8_COMMON_RECONINTRA4X4_H_