xref: /aosp_15_r20/external/libvpx/vp8/common/setupintrarecon.c (revision fb1b10ab9aebc7c7068eedab379b749d7e3900be)

/*
 *  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.
 */

#include "setupintrarecon.h"
#include "vpx_mem/vpx_mem.h"

void vp8_setup_intra_recon(YV12_BUFFER_CONFIG *ybf) {
  int i;

  /* set up frame new frame for intra coded blocks */
  memset(ybf->y_buffer - 1 - ybf->y_stride, 127, ybf->y_width + 5);
  for (i = 0; i < ybf->y_height; ++i) {
    ybf->y_buffer[ybf->y_stride * i - 1] = (unsigned char)129;
  }

  memset(ybf->u_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
  for (i = 0; i < ybf->uv_height; ++i) {
    ybf->u_buffer[ybf->uv_stride * i - 1] = (unsigned char)129;
  }

  memset(ybf->v_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
  for (i = 0; i < ybf->uv_height; ++i) {
    ybf->v_buffer[ybf->uv_stride * i - 1] = (unsigned char)129;
  }
}

void vp8_setup_intra_recon_top_line(YV12_BUFFER_CONFIG *ybf) {
  memset(ybf->y_buffer - 1 - ybf->y_stride, 127, ybf->y_width + 5);
  memset(ybf->u_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
  memset(ybf->v_buffer - 1 - ybf->uv_stride, 127, ybf->uv_width + 5);
}