/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#include "./aom_config.h"
#include "./aom_dsp_rtcd.h"

#include "aom_ports/mem.h"
#include "aom/aom_integer.h"

#include "aom_dsp/variance.h"
#include "aom_dsp/aom_filter.h"
#include "aom_dsp/blend.h"

#include "./av1_rtcd.h"
#include "av1/common/filter.h"

uint32_t aom_get4x4sse_cs_c(const uint8_t *a, int a_stride, const uint8_t *b,
                            int b_stride) {
  int distortion = 0;
  int r, c;

  for (r = 0; r < 4; ++r) {
    for (c = 0; c < 4; ++c) {
      int diff = a[c] - b[c];
      distortion += diff * diff;
    }

    a += a_stride;
    b += b_stride;
  }

  return distortion;
}

uint32_t aom_get_mb_ss_c(const int16_t *a) {
  unsigned int i, sum = 0;

  for (i = 0; i < 256; ++i) {
    sum += a[i] * a[i];
  }

  return sum;
}

uint32_t aom_variance_halfpixvar16x16_h_c(const uint8_t *a, int a_stride,
                                          const uint8_t *b, int b_stride,
                                          uint32_t *sse) {
  return aom_sub_pixel_variance16x16_c(a, a_stride, 4, 0, b, b_stride, sse);
}

uint32_t aom_variance_halfpixvar16x16_v_c(const uint8_t *a, int a_stride,
                                          const uint8_t *b, int b_stride,
                                          uint32_t *sse) {
  return aom_sub_pixel_variance16x16_c(a, a_stride, 0, 4, b, b_stride, sse);
}

uint32_t aom_variance_halfpixvar16x16_hv_c(const uint8_t *a, int a_stride,
                                           const uint8_t *b, int b_stride,
                                           uint32_t *sse) {
  return aom_sub_pixel_variance16x16_c(a, a_stride, 4, 4, b, b_stride, sse);
}

static void variance(const uint8_t *a, int a_stride, const uint8_t *b,
                     int b_stride, int w, int h, uint32_t *sse, int *sum) {
  int i, j;

  *sum = 0;
  *sse = 0;

  for (i = 0; i < h; ++i) {
    for (j = 0; j < w; ++j) {
      const int diff = a[j] - b[j];
      *sum += diff;
      *sse += diff * diff;
    }

    a += a_stride;
    b += b_stride;
  }
}

uint32_t aom_sse_odd_size(const uint8_t *a, int a_stride, const uint8_t *b,
                          int b_stride, int w, int h) {
  uint32_t sse;
  int sum;
  variance(a, a_stride, b, b_stride, w, h, &sse, &sum);
  return sse;
}

// Applies a 1-D 2-tap bilinear filter to the source block in either horizontal
// or vertical direction to produce the filtered output block. Used to implement
// the first-pass of 2-D separable filter.
//
// Produces int16_t output to retain precision for the next pass. Two filter
// taps should sum to FILTER_WEIGHT. pixel_step defines whether the filter is
// applied horizontally (pixel_step = 1) or vertically (pixel_step = stride).
// It defines the offset required to move from one input to the next.
static void var_filter_block2d_bil_first_pass(const uint8_t *a, uint16_t *b,
                                              unsigned int src_pixels_per_line,
                                              int pixel_step,
                                              unsigned int output_height,
                                              unsigned int output_width,
                                              const uint8_t *filter) {
  unsigned int i, j;

  for (i = 0; i < output_height; ++i) {
    for (j = 0; j < output_width; ++j) {
      b[j] = ROUND_POWER_OF_TWO(
          (int)a[0] * filter[0] + (int)a[pixel_step] * filter[1], FILTER_BITS);

      ++a;
    }

    a += src_pixels_per_line - output_width;
    b += output_width;
  }
}

// Applies a 1-D 2-tap bilinear filter to the source block in either horizontal
// or vertical direction to produce the filtered output block. Used to implement
// the second-pass of 2-D separable filter.
//
// Requires 16-bit input as produced by filter_block2d_bil_first_pass. Two
// filter taps should sum to FILTER_WEIGHT. pixel_step defines whether the
// filter is applied horizontally (pixel_step = 1) or vertically
// (pixel_step = stride). It defines the offset required to move from one input
// to the next. Output is 8-bit.
static void var_filter_block2d_bil_second_pass(const uint16_t *a, uint8_t *b,
                                               unsigned int src_pixels_per_line,
                                               unsigned int pixel_step,
                                               unsigned int output_height,
                                               unsigned int output_width,
                                               const uint8_t *filter) {
  unsigned int i, j;

  for (i = 0; i < output_height; ++i) {
    for (j = 0; j < output_width; ++j) {
      b[j] = ROUND_POWER_OF_TWO(
          (int)a[0] * filter[0] + (int)a[pixel_step] * filter[1], FILTER_BITS);
      ++a;
    }

    a += src_pixels_per_line - output_width;
    b += output_width;
  }
}

#define VAR(W, H)                                                    \
  uint32_t aom_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
                                     const uint8_t *b, int b_stride, \
                                     uint32_t *sse) {                \
    int sum;                                                         \
    variance(a, a_stride, b, b_stride, W, H, sse, &sum);             \
    return *sse - (uint32_t)(((int64_t)sum * sum) / (W * H));        \
  }

#define SUBPIX_VAR(W, H)                                                \
  uint32_t aom_sub_pixel_variance##W##x##H##_c(                         \
      const uint8_t *a, int a_stride, int xoffset, int yoffset,         \
      const uint8_t *b, int b_stride, uint32_t *sse) {                  \
    uint16_t fdata3[(H + 1) * W];                                       \
    uint8_t temp2[H * W];                                               \
                                                                        \
    var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W, \
                                      bilinear_filters_2t[xoffset]);    \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,       \
                                       bilinear_filters_2t[yoffset]);   \
                                                                        \
    return aom_variance##W##x##H##_c(temp2, W, b, b_stride, sse);       \
  }

#if CONFIG_JNT_COMP
#define SUBPIX_AVG_VAR(W, H)                                              \
  uint32_t aom_sub_pixel_avg_variance##W##x##H##_c(                       \
      const uint8_t *a, int a_stride, int xoffset, int yoffset,           \
      const uint8_t *b, int b_stride, uint32_t *sse,                      \
      const uint8_t *second_pred) {                                       \
    uint16_t fdata3[(H + 1) * W];                                         \
    uint8_t temp2[H * W];                                                 \
    DECLARE_ALIGNED(16, uint8_t, temp3[H * W]);                           \
                                                                          \
    var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W,   \
                                      bilinear_filters_2t[xoffset]);      \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,         \
                                       bilinear_filters_2t[yoffset]);     \
                                                                          \
    aom_comp_avg_pred(temp3, second_pred, W, H, temp2, W);                \
                                                                          \
    return aom_variance##W##x##H##_c(temp3, W, b, b_stride, sse);         \
  }                                                                       \
  uint32_t aom_jnt_sub_pixel_avg_variance##W##x##H##_c(                   \
      const uint8_t *a, int a_stride, int xoffset, int yoffset,           \
      const uint8_t *b, int b_stride, uint32_t *sse,                      \
      const uint8_t *second_pred, const JNT_COMP_PARAMS *jcp_param) {     \
    uint16_t fdata3[(H + 1) * W];                                         \
    uint8_t temp2[H * W];                                                 \
    DECLARE_ALIGNED(16, uint8_t, temp3[H * W]);                           \
                                                                          \
    var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W,   \
                                      bilinear_filters_2t[xoffset]);      \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,         \
                                       bilinear_filters_2t[yoffset]);     \
                                                                          \
    aom_jnt_comp_avg_pred(temp3, second_pred, W, H, temp2, W, jcp_param); \
                                                                          \
    return aom_variance##W##x##H(temp3, W, b, b_stride, sse);             \
  }
#else  // CONFIG_JNT_COMP
#define SUBPIX_AVG_VAR(W, H)                                            \
  uint32_t aom_sub_pixel_avg_variance##W##x##H##_c(                     \
      const uint8_t *a, int a_stride, int xoffset, int yoffset,         \
      const uint8_t *b, int b_stride, uint32_t *sse,                    \
      const uint8_t *second_pred) {                                     \
    uint16_t fdata3[(H + 1) * W];                                       \
    uint8_t temp2[H * W];                                               \
    DECLARE_ALIGNED(16, uint8_t, temp3[H * W]);                         \
                                                                        \
    var_filter_block2d_bil_first_pass(a, fdata3, a_stride, 1, H + 1, W, \
                                      bilinear_filters_2t[xoffset]);    \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,       \
                                       bilinear_filters_2t[yoffset]);   \
                                                                        \
    aom_comp_avg_pred(temp3, second_pred, W, H, temp2, W);              \
                                                                        \
    return aom_variance##W##x##H##_c(temp3, W, b, b_stride, sse);       \
  }
#endif  // CONFIG_JNT_COMP

/* Identical to the variance call except it takes an additional parameter, sum,
 * and returns that value using pass-by-reference instead of returning
 * sse - sum^2 / w*h
 */
#define GET_VAR(W, H)                                                         \
  void aom_get##W##x##H##var_c(const uint8_t *a, int a_stride,                \
                               const uint8_t *b, int b_stride, uint32_t *sse, \
                               int *sum) {                                    \
    variance(a, a_stride, b, b_stride, W, H, sse, sum);                       \
  }

/* Identical to the variance call except it does not calculate the
 * sse - sum^2 / w*h and returns sse in addtion to modifying the passed in
 * variable.
 */
#define MSE(W, H)                                               \
  uint32_t aom_mse##W##x##H##_c(const uint8_t *a, int a_stride, \
                                const uint8_t *b, int b_stride, \
                                uint32_t *sse) {                \
    int sum;                                                    \
    variance(a, a_stride, b, b_stride, W, H, sse, &sum);        \
    return *sse;                                                \
  }

/* All three forms of the variance are available in the same sizes. */
#define VARIANCES(W, H) \
  VAR(W, H)             \
  SUBPIX_VAR(W, H)      \
  SUBPIX_AVG_VAR(W, H)

#if CONFIG_AV1 && CONFIG_EXT_PARTITION
VARIANCES(128, 128)
VARIANCES(128, 64)
VARIANCES(64, 128)
#endif  // CONFIG_AV1 && CONFIG_EXT_PARTITION
VARIANCES(64, 64)
VARIANCES(64, 32)
VARIANCES(32, 64)
VARIANCES(32, 32)
VARIANCES(32, 16)
VARIANCES(16, 32)
VARIANCES(16, 16)
VARIANCES(16, 8)
VARIANCES(8, 16)
VARIANCES(8, 8)
VARIANCES(8, 4)
VARIANCES(4, 8)
VARIANCES(4, 4)
VARIANCES(4, 2)
VARIANCES(2, 4)
VARIANCES(2, 2)

#if CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES
VARIANCES(4, 16)
VARIANCES(16, 4)
VARIANCES(8, 32)
VARIANCES(32, 8)
VARIANCES(16, 64)
VARIANCES(64, 16)
#if CONFIG_EXT_PARTITION
VARIANCES(32, 128)
VARIANCES(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES

GET_VAR(16, 16)
GET_VAR(8, 8)

MSE(16, 16)
MSE(16, 8)
MSE(8, 16)
MSE(8, 8)

void aom_comp_avg_pred_c(uint8_t *comp_pred, const uint8_t *pred, int width,
                         int height, const uint8_t *ref, int ref_stride) {
  int i, j;

  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      const int tmp = pred[j] + ref[j];
      comp_pred[j] = ROUND_POWER_OF_TWO(tmp, 1);
    }
    comp_pred += width;
    pred += width;
    ref += ref_stride;
  }
}

// Get pred block from up-sampled reference.
void aom_upsampled_pred_c(uint8_t *comp_pred, int width, int height,
                          int subpel_x_q3, int subpel_y_q3, const uint8_t *ref,
                          int ref_stride) {
  if (!subpel_x_q3 && !subpel_y_q3) {
    int i;
    for (i = 0; i < height; i++) {
      memcpy(comp_pred, ref, width * sizeof(*comp_pred));
      comp_pred += width;
      ref += ref_stride;
    }
  } else {
    InterpFilterParams filter;
    filter = av1_get_interp_filter_params(EIGHTTAP_REGULAR);
    if (!subpel_y_q3) {
      const int16_t *kernel;
      kernel = av1_get_interp_filter_subpel_kernel(filter, subpel_x_q3 << 1);
      /*Directly call C version to allow this to work for small (2x2) sizes.*/
      aom_convolve8_horiz_c(ref, ref_stride, comp_pred, width, kernel, 16, NULL,
                            -1, width, height);
    } else if (!subpel_x_q3) {
      const int16_t *kernel;
      kernel = av1_get_interp_filter_subpel_kernel(filter, subpel_y_q3 << 1);
      /*Directly call C version to allow this to work for small (2x2) sizes.*/
      aom_convolve8_vert_c(ref, ref_stride, comp_pred, width, NULL, -1, kernel,
                           16, width, height);
    } else {
      DECLARE_ALIGNED(16, uint8_t,
                      temp[((MAX_SB_SIZE * 2 + 16) + 16) * MAX_SB_SIZE]);
      const int16_t *kernel_x;
      const int16_t *kernel_y;
      int intermediate_height;
      kernel_x = av1_get_interp_filter_subpel_kernel(filter, subpel_x_q3 << 1);
      kernel_y = av1_get_interp_filter_subpel_kernel(filter, subpel_y_q3 << 1);
      intermediate_height =
          (((height - 1) * 8 + subpel_y_q3) >> 3) + filter.taps;
      assert(intermediate_height <= (MAX_SB_SIZE * 2 + 16) + 16);
      /*Directly call C versions to allow this to work for small (2x2) sizes.*/
      aom_convolve8_horiz_c(ref - ref_stride * ((filter.taps >> 1) - 1),
                            ref_stride, temp, MAX_SB_SIZE, kernel_x, 16, NULL,
                            -1, width, intermediate_height);
      aom_convolve8_vert_c(temp + MAX_SB_SIZE * ((filter.taps >> 1) - 1),
                           MAX_SB_SIZE, comp_pred, width, NULL, -1, kernel_y,
                           16, width, height);
    }
  }
}

void aom_comp_avg_upsampled_pred_c(uint8_t *comp_pred, const uint8_t *pred,
                                   int width, int height, int subpel_x_q3,
                                   int subpel_y_q3, const uint8_t *ref,
                                   int ref_stride) {
  int i, j;

  aom_upsampled_pred(comp_pred, width, height, subpel_x_q3, subpel_y_q3, ref,
                     ref_stride);
  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      comp_pred[j] = ROUND_POWER_OF_TWO(comp_pred[j] + pred[j], 1);
    }
    comp_pred += width;
    pred += width;
  }
}

#if CONFIG_JNT_COMP
void aom_jnt_comp_avg_pred_c(uint8_t *comp_pred, const uint8_t *pred, int width,
                             int height, const uint8_t *ref, int ref_stride,
                             const JNT_COMP_PARAMS *jcp_param) {
  int i, j;
  const int fwd_offset = jcp_param->fwd_offset;
  const int bck_offset = jcp_param->bck_offset;

  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      int tmp = pred[j] * bck_offset + ref[j] * fwd_offset;
      tmp = ROUND_POWER_OF_TWO(tmp, DIST_PRECISION_BITS);
      comp_pred[j] = (uint8_t)tmp;
    }
    comp_pred += width;
    pred += width;
    ref += ref_stride;
  }
}

void aom_jnt_comp_avg_upsampled_pred_c(uint8_t *comp_pred, const uint8_t *pred,
                                       int width, int height, int subpel_x_q3,
                                       int subpel_y_q3, const uint8_t *ref,
                                       int ref_stride,
                                       const JNT_COMP_PARAMS *jcp_param) {
  int i, j;
  const int fwd_offset = jcp_param->fwd_offset;
  const int bck_offset = jcp_param->bck_offset;

  aom_upsampled_pred(comp_pred, width, height, subpel_x_q3, subpel_y_q3, ref,
                     ref_stride);

  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      int tmp = pred[j] * bck_offset + comp_pred[j] * fwd_offset;
      tmp = ROUND_POWER_OF_TWO(tmp, DIST_PRECISION_BITS);
      comp_pred[j] = (uint8_t)tmp;
    }
    comp_pred += width;
    pred += width;
  }
}
#endif  // CONFIG_JNT_COMP

#if CONFIG_HIGHBITDEPTH
static void highbd_variance64(const uint8_t *a8, int a_stride,
                              const uint8_t *b8, int b_stride, int w, int h,
                              uint64_t *sse, int64_t *sum) {
  int i, j;

  uint16_t *a = CONVERT_TO_SHORTPTR(a8);
  uint16_t *b = CONVERT_TO_SHORTPTR(b8);
  *sum = 0;
  *sse = 0;

  for (i = 0; i < h; ++i) {
    for (j = 0; j < w; ++j) {
      const int diff = a[j] - b[j];
      *sum += diff;
      *sse += diff * diff;
    }
    a += a_stride;
    b += b_stride;
  }
}

uint64_t aom_highbd_sse_odd_size(const uint8_t *a, int a_stride,
                                 const uint8_t *b, int b_stride, int w, int h) {
  uint64_t sse;
  int64_t sum;
  highbd_variance64(a, a_stride, b, b_stride, w, h, &sse, &sum);
  return sse;
}

static void highbd_8_variance(const uint8_t *a8, int a_stride,
                              const uint8_t *b8, int b_stride, int w, int h,
                              uint32_t *sse, int *sum) {
  uint64_t sse_long = 0;
  int64_t sum_long = 0;
  highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
  *sse = (uint32_t)sse_long;
  *sum = (int)sum_long;
}

static void highbd_10_variance(const uint8_t *a8, int a_stride,
                               const uint8_t *b8, int b_stride, int w, int h,
                               uint32_t *sse, int *sum) {
  uint64_t sse_long = 0;
  int64_t sum_long = 0;
  highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
  *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 4);
  *sum = (int)ROUND_POWER_OF_TWO(sum_long, 2);
}

static void highbd_12_variance(const uint8_t *a8, int a_stride,
                               const uint8_t *b8, int b_stride, int w, int h,
                               uint32_t *sse, int *sum) {
  uint64_t sse_long = 0;
  int64_t sum_long = 0;
  highbd_variance64(a8, a_stride, b8, b_stride, w, h, &sse_long, &sum_long);
  *sse = (uint32_t)ROUND_POWER_OF_TWO(sse_long, 8);
  *sum = (int)ROUND_POWER_OF_TWO(sum_long, 4);
}

#define HIGHBD_VAR(W, H)                                                       \
  uint32_t aom_highbd_8_variance##W##x##H##_c(const uint8_t *a, int a_stride,  \
                                              const uint8_t *b, int b_stride,  \
                                              uint32_t *sse) {                 \
    int sum;                                                                   \
    highbd_8_variance(a, a_stride, b, b_stride, W, H, sse, &sum);              \
    return *sse - (uint32_t)(((int64_t)sum * sum) / (W * H));                  \
  }                                                                            \
                                                                               \
  uint32_t aom_highbd_10_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
                                               const uint8_t *b, int b_stride, \
                                               uint32_t *sse) {                \
    int sum;                                                                   \
    int64_t var;                                                               \
    highbd_10_variance(a, a_stride, b, b_stride, W, H, sse, &sum);             \
    var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H));                  \
    return (var >= 0) ? (uint32_t)var : 0;                                     \
  }                                                                            \
                                                                               \
  uint32_t aom_highbd_12_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
                                               const uint8_t *b, int b_stride, \
                                               uint32_t *sse) {                \
    int sum;                                                                   \
    int64_t var;                                                               \
    highbd_12_variance(a, a_stride, b, b_stride, W, H, sse, &sum);             \
    var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H));                  \
    return (var >= 0) ? (uint32_t)var : 0;                                     \
  }

#define HIGHBD_GET_VAR(S)                                                    \
  void aom_highbd_8_get##S##x##S##var_c(const uint8_t *src, int src_stride,  \
                                        const uint8_t *ref, int ref_stride,  \
                                        uint32_t *sse, int *sum) {           \
    highbd_8_variance(src, src_stride, ref, ref_stride, S, S, sse, sum);     \
  }                                                                          \
                                                                             \
  void aom_highbd_10_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
                                         const uint8_t *ref, int ref_stride, \
                                         uint32_t *sse, int *sum) {          \
    highbd_10_variance(src, src_stride, ref, ref_stride, S, S, sse, sum);    \
  }                                                                          \
                                                                             \
  void aom_highbd_12_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
                                         const uint8_t *ref, int ref_stride, \
                                         uint32_t *sse, int *sum) {          \
    highbd_12_variance(src, src_stride, ref, ref_stride, S, S, sse, sum);    \
  }

#define HIGHBD_MSE(W, H)                                                      \
  uint32_t aom_highbd_8_mse##W##x##H##_c(const uint8_t *src, int src_stride,  \
                                         const uint8_t *ref, int ref_stride,  \
                                         uint32_t *sse) {                     \
    int sum;                                                                  \
    highbd_8_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum);     \
    return *sse;                                                              \
  }                                                                           \
                                                                              \
  uint32_t aom_highbd_10_mse##W##x##H##_c(const uint8_t *src, int src_stride, \
                                          const uint8_t *ref, int ref_stride, \
                                          uint32_t *sse) {                    \
    int sum;                                                                  \
    highbd_10_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum);    \
    return *sse;                                                              \
  }                                                                           \
                                                                              \
  uint32_t aom_highbd_12_mse##W##x##H##_c(const uint8_t *src, int src_stride, \
                                          const uint8_t *ref, int ref_stride, \
                                          uint32_t *sse) {                    \
    int sum;                                                                  \
    highbd_12_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum);    \
    return *sse;                                                              \
  }

void aom_highbd_var_filter_block2d_bil_first_pass(
    const uint8_t *src_ptr8, uint16_t *output_ptr,
    unsigned int src_pixels_per_line, int pixel_step,
    unsigned int output_height, unsigned int output_width,
    const uint8_t *filter) {
  unsigned int i, j;
  uint16_t *src_ptr = CONVERT_TO_SHORTPTR(src_ptr8);
  for (i = 0; i < output_height; ++i) {
    for (j = 0; j < output_width; ++j) {
      output_ptr[j] = ROUND_POWER_OF_TWO(
          (int)src_ptr[0] * filter[0] + (int)src_ptr[pixel_step] * filter[1],
          FILTER_BITS);

      ++src_ptr;
    }

    // Next row...
    src_ptr += src_pixels_per_line - output_width;
    output_ptr += output_width;
  }
}

void aom_highbd_var_filter_block2d_bil_second_pass(
    const uint16_t *src_ptr, uint16_t *output_ptr,
    unsigned int src_pixels_per_line, unsigned int pixel_step,
    unsigned int output_height, unsigned int output_width,
    const uint8_t *filter) {
  unsigned int i, j;

  for (i = 0; i < output_height; ++i) {
    for (j = 0; j < output_width; ++j) {
      output_ptr[j] = ROUND_POWER_OF_TWO(
          (int)src_ptr[0] * filter[0] + (int)src_ptr[pixel_step] * filter[1],
          FILTER_BITS);
      ++src_ptr;
    }

    src_ptr += src_pixels_per_line - output_width;
    output_ptr += output_width;
  }
}

#define HIGHBD_SUBPIX_VAR(W, H)                                              \
  uint32_t aom_highbd_8_sub_pixel_variance##W##x##H##_c(                     \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse) {                   \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    return aom_highbd_8_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W,  \
                                              dst, dst_stride, sse);         \
  }                                                                          \
                                                                             \
  uint32_t aom_highbd_10_sub_pixel_variance##W##x##H##_c(                    \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse) {                   \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    return aom_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
                                               dst, dst_stride, sse);        \
  }                                                                          \
                                                                             \
  uint32_t aom_highbd_12_sub_pixel_variance##W##x##H##_c(                    \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse) {                   \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    return aom_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
                                               dst, dst_stride, sse);        \
  }

#define HIGHBD_SUBPIX_AVG_VAR(W, H)                                          \
  uint32_t aom_highbd_8_sub_pixel_avg_variance##W##x##H##_c(                 \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse,                     \
      const uint8_t *second_pred) {                                          \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                             \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    aom_highbd_comp_avg_pred_c(temp3, second_pred, W, H,                     \
                               CONVERT_TO_BYTEPTR(temp2), W);                \
                                                                             \
    return aom_highbd_8_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W,  \
                                              dst, dst_stride, sse);         \
  }                                                                          \
                                                                             \
  uint32_t aom_highbd_10_sub_pixel_avg_variance##W##x##H##_c(                \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse,                     \
      const uint8_t *second_pred) {                                          \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                             \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    aom_highbd_comp_avg_pred_c(temp3, second_pred, W, H,                     \
                               CONVERT_TO_BYTEPTR(temp2), W);                \
                                                                             \
    return aom_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, \
                                               dst, dst_stride, sse);        \
  }                                                                          \
                                                                             \
  uint32_t aom_highbd_12_sub_pixel_avg_variance##W##x##H##_c(                \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,          \
      const uint8_t *dst, int dst_stride, uint32_t *sse,                     \
      const uint8_t *second_pred) {                                          \
    uint16_t fdata3[(H + 1) * W];                                            \
    uint16_t temp2[H * W];                                                   \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                             \
                                                                             \
    aom_highbd_var_filter_block2d_bil_first_pass(                            \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]); \
    aom_highbd_var_filter_block2d_bil_second_pass(                           \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);            \
                                                                             \
    aom_highbd_comp_avg_pred_c(temp3, second_pred, W, H,                     \
                               CONVERT_TO_BYTEPTR(temp2), W);                \
                                                                             \
    return aom_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, \
                                               dst, dst_stride, sse);        \
  }

/* All three forms of the variance are available in the same sizes. */
#define HIGHBD_VARIANCES(W, H) \
  HIGHBD_VAR(W, H)             \
  HIGHBD_SUBPIX_VAR(W, H)      \
  HIGHBD_SUBPIX_AVG_VAR(W, H)

#if CONFIG_AV1 && CONFIG_EXT_PARTITION
HIGHBD_VARIANCES(128, 128)
HIGHBD_VARIANCES(128, 64)
HIGHBD_VARIANCES(64, 128)
#endif  // CONFIG_AV1 && CONFIG_EXT_PARTITION
HIGHBD_VARIANCES(64, 64)
HIGHBD_VARIANCES(64, 32)
HIGHBD_VARIANCES(32, 64)
HIGHBD_VARIANCES(32, 32)
HIGHBD_VARIANCES(32, 16)
HIGHBD_VARIANCES(16, 32)
HIGHBD_VARIANCES(16, 16)
HIGHBD_VARIANCES(16, 8)
HIGHBD_VARIANCES(8, 16)
HIGHBD_VARIANCES(8, 8)
HIGHBD_VARIANCES(8, 4)
HIGHBD_VARIANCES(4, 8)
HIGHBD_VARIANCES(4, 4)
HIGHBD_VARIANCES(4, 2)
HIGHBD_VARIANCES(2, 4)
HIGHBD_VARIANCES(2, 2)

#if CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES
HIGHBD_VARIANCES(4, 16)
HIGHBD_VARIANCES(16, 4)
HIGHBD_VARIANCES(8, 32)
HIGHBD_VARIANCES(32, 8)
HIGHBD_VARIANCES(16, 64)
HIGHBD_VARIANCES(64, 16)
#if CONFIG_EXT_PARTITION
HIGHBD_VARIANCES(32, 128)
HIGHBD_VARIANCES(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_AV1 && CONFIG_EXT_PARTITION_TYPES

HIGHBD_GET_VAR(8)
HIGHBD_GET_VAR(16)

HIGHBD_MSE(16, 16)
HIGHBD_MSE(16, 8)
HIGHBD_MSE(8, 16)
HIGHBD_MSE(8, 8)

void aom_highbd_comp_avg_pred_c(uint16_t *comp_pred, const uint8_t *pred8,
                                int width, int height, const uint8_t *ref8,
                                int ref_stride) {
  int i, j;
  uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
  uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      const int tmp = pred[j] + ref[j];
      comp_pred[j] = ROUND_POWER_OF_TWO(tmp, 1);
    }
    comp_pred += width;
    pred += width;
    ref += ref_stride;
  }
}

void aom_highbd_upsampled_pred_c(uint16_t *comp_pred, int width, int height,
                                 int subpel_x_q3, int subpel_y_q3,
                                 const uint8_t *ref8, int ref_stride, int bd) {
  if (!subpel_x_q3 && !subpel_y_q3) {
    const uint16_t *ref;
    int i;
    ref = CONVERT_TO_SHORTPTR(ref8);
    for (i = 0; i < height; i++) {
      memcpy(comp_pred, ref, width * sizeof(*comp_pred));
      comp_pred += width;
      ref += ref_stride;
    }
  } else {
    InterpFilterParams filter;
    filter = av1_get_interp_filter_params(EIGHTTAP_REGULAR);
    if (!subpel_y_q3) {
      const int16_t *kernel;
      kernel = av1_get_interp_filter_subpel_kernel(filter, subpel_x_q3 << 1);
      /*Directly call C version to allow this to work for small (2x2) sizes.*/
      aom_highbd_convolve8_horiz_c(ref8, ref_stride,
                                   CONVERT_TO_BYTEPTR(comp_pred), width, kernel,
                                   16, NULL, -1, width, height, bd);
    } else if (!subpel_x_q3) {
      const int16_t *kernel;
      kernel = av1_get_interp_filter_subpel_kernel(filter, subpel_y_q3 << 1);
      /*Directly call C version to allow this to work for small (2x2) sizes.*/
      aom_highbd_convolve8_vert_c(ref8, ref_stride,
                                  CONVERT_TO_BYTEPTR(comp_pred), width, NULL,
                                  -1, kernel, 16, width, height, bd);
    } else {
      DECLARE_ALIGNED(16, uint16_t,
                      temp[((MAX_SB_SIZE + 16) + 16) * MAX_SB_SIZE]);
      const int16_t *kernel_x;
      const int16_t *kernel_y;
      int intermediate_height;
      kernel_x = av1_get_interp_filter_subpel_kernel(filter, subpel_x_q3 << 1);
      kernel_y = av1_get_interp_filter_subpel_kernel(filter, subpel_y_q3 << 1);
      intermediate_height =
          (((height - 1) * 8 + subpel_y_q3) >> 3) + filter.taps;
      assert(intermediate_height <= (MAX_SB_SIZE * 2 + 16) + 16);
      /*Directly call C versions to allow this to work for small (2x2) sizes.*/
      aom_highbd_convolve8_horiz_c(ref8 - ref_stride * ((filter.taps >> 1) - 1),
                                   ref_stride, CONVERT_TO_BYTEPTR(temp),
                                   MAX_SB_SIZE, kernel_x, 16, NULL, -1, width,
                                   intermediate_height, bd);
      aom_highbd_convolve8_vert_c(
          CONVERT_TO_BYTEPTR(temp + MAX_SB_SIZE * ((filter.taps >> 1) - 1)),
          MAX_SB_SIZE, CONVERT_TO_BYTEPTR(comp_pred), width, NULL, -1, kernel_y,
          16, width, height, bd);
    }
  }
}

void aom_highbd_comp_avg_upsampled_pred_c(uint16_t *comp_pred,
                                          const uint8_t *pred8, int width,
                                          int height, int subpel_x_q3,
                                          int subpel_y_q3, const uint8_t *ref8,
                                          int ref_stride, int bd) {
  int i, j;

  const uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
  aom_highbd_upsampled_pred(comp_pred, width, height, subpel_x_q3, subpel_y_q3,
                            ref8, ref_stride, bd);
  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      comp_pred[j] = ROUND_POWER_OF_TWO(pred[j] + comp_pred[j], 1);
    }
    comp_pred += width;
    pred += width;
  }
}
#endif  // CONFIG_HIGHBITDEPTH

#if CONFIG_AV1
void aom_comp_mask_pred_c(uint8_t *comp_pred, const uint8_t *pred, int width,
                          int height, const uint8_t *ref, int ref_stride,
                          const uint8_t *mask, int mask_stride,
                          int invert_mask) {
  int i, j;

  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      if (!invert_mask)
        comp_pred[j] = AOM_BLEND_A64(mask[j], ref[j], pred[j]);
      else
        comp_pred[j] = AOM_BLEND_A64(mask[j], pred[j], ref[j]);
    }
    comp_pred += width;
    pred += width;
    ref += ref_stride;
    mask += mask_stride;
  }
}

void aom_comp_mask_upsampled_pred_c(uint8_t *comp_pred, const uint8_t *pred,
                                    int width, int height, int subpel_x_q3,
                                    int subpel_y_q3, const uint8_t *ref,
                                    int ref_stride, const uint8_t *mask,
                                    int mask_stride, int invert_mask) {
  int i, j;

  aom_upsampled_pred(comp_pred, width, height, subpel_x_q3, subpel_y_q3, ref,
                     ref_stride);
  for (i = 0; i < height; i++) {
    for (j = 0; j < width; j++) {
      if (!invert_mask)
        comp_pred[j] = AOM_BLEND_A64(mask[j], comp_pred[j], pred[j]);
      else
        comp_pred[j] = AOM_BLEND_A64(mask[j], pred[j], comp_pred[j]);
    }
    comp_pred += width;
    pred += width;
    mask += mask_stride;
  }
}

#define MASK_SUBPIX_VAR(W, H)                                                 \
  unsigned int aom_masked_sub_pixel_variance##W##x##H##_c(                    \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,           \
      const uint8_t *ref, int ref_stride, const uint8_t *second_pred,         \
      const uint8_t *msk, int msk_stride, int invert_mask,                    \
      unsigned int *sse) {                                                    \
    uint16_t fdata3[(H + 1) * W];                                             \
    uint8_t temp2[H * W];                                                     \
    DECLARE_ALIGNED(16, uint8_t, temp3[H * W]);                               \
                                                                              \
    var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, W,   \
                                      bilinear_filters_2t[xoffset]);          \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,             \
                                       bilinear_filters_2t[yoffset]);         \
                                                                              \
    aom_comp_mask_pred_c(temp3, second_pred, W, H, temp2, W, msk, msk_stride, \
                         invert_mask);                                        \
    return aom_variance##W##x##H##_c(temp3, W, ref, ref_stride, sse);         \
  }

MASK_SUBPIX_VAR(4, 4)
MASK_SUBPIX_VAR(4, 8)
MASK_SUBPIX_VAR(8, 4)
MASK_SUBPIX_VAR(8, 8)
MASK_SUBPIX_VAR(8, 16)
MASK_SUBPIX_VAR(16, 8)
MASK_SUBPIX_VAR(16, 16)
MASK_SUBPIX_VAR(16, 32)
MASK_SUBPIX_VAR(32, 16)
MASK_SUBPIX_VAR(32, 32)
MASK_SUBPIX_VAR(32, 64)
MASK_SUBPIX_VAR(64, 32)
MASK_SUBPIX_VAR(64, 64)
#if CONFIG_EXT_PARTITION
MASK_SUBPIX_VAR(64, 128)
MASK_SUBPIX_VAR(128, 64)
MASK_SUBPIX_VAR(128, 128)
#endif  // CONFIG_EXT_PARTITION

#if CONFIG_EXT_PARTITION_TYPES
MASK_SUBPIX_VAR(4, 16)
MASK_SUBPIX_VAR(16, 4)
MASK_SUBPIX_VAR(8, 32)
MASK_SUBPIX_VAR(32, 8)
MASK_SUBPIX_VAR(16, 64)
MASK_SUBPIX_VAR(64, 16)
#if CONFIG_EXT_PARTITION
MASK_SUBPIX_VAR(32, 128)
MASK_SUBPIX_VAR(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_EXT_PARTITION_TYPES

#if CONFIG_HIGHBITDEPTH
void aom_highbd_comp_mask_pred_c(uint16_t *comp_pred, const uint8_t *pred8,
                                 int width, int height, const uint8_t *ref8,
                                 int ref_stride, const uint8_t *mask,
                                 int mask_stride, int invert_mask) {
  int i, j;
  uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
  uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      if (!invert_mask)
        comp_pred[j] = AOM_BLEND_A64(mask[j], ref[j], pred[j]);
      else
        comp_pred[j] = AOM_BLEND_A64(mask[j], pred[j], ref[j]);
    }
    comp_pred += width;
    pred += width;
    ref += ref_stride;
    mask += mask_stride;
  }
}

void aom_highbd_comp_mask_upsampled_pred_c(
    uint16_t *comp_pred, const uint8_t *pred8, int width, int height,
    int subpel_x_q3, int subpel_y_q3, const uint8_t *ref8, int ref_stride,
    const uint8_t *mask, int mask_stride, int invert_mask, int bd) {
  int i, j;

  uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
  aom_highbd_upsampled_pred(comp_pred, width, height, subpel_x_q3, subpel_y_q3,
                            ref8, ref_stride, bd);
  for (i = 0; i < height; ++i) {
    for (j = 0; j < width; ++j) {
      if (!invert_mask)
        comp_pred[j] = AOM_BLEND_A64(mask[j], comp_pred[j], pred[j]);
      else
        comp_pred[j] = AOM_BLEND_A64(mask[j], pred[j], comp_pred[j]);
    }
    comp_pred += width;
    pred += width;
    mask += mask_stride;
  }
}

#define HIGHBD_MASK_SUBPIX_VAR(W, H)                                           \
  unsigned int aom_highbd_8_masked_sub_pixel_variance##W##x##H##_c(            \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,            \
      const uint8_t *ref, int ref_stride, const uint8_t *second_pred,          \
      const uint8_t *msk, int msk_stride, int invert_mask,                     \
      unsigned int *sse) {                                                     \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                               \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    aom_highbd_comp_mask_pred_c(temp3, second_pred, W, H,                      \
                                CONVERT_TO_BYTEPTR(temp2), W, msk, msk_stride, \
                                invert_mask);                                  \
                                                                               \
    return aom_highbd_8_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W,    \
                                              ref, ref_stride, sse);           \
  }                                                                            \
                                                                               \
  unsigned int aom_highbd_10_masked_sub_pixel_variance##W##x##H##_c(           \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,            \
      const uint8_t *ref, int ref_stride, const uint8_t *second_pred,          \
      const uint8_t *msk, int msk_stride, int invert_mask,                     \
      unsigned int *sse) {                                                     \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                               \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    aom_highbd_comp_mask_pred_c(temp3, second_pred, W, H,                      \
                                CONVERT_TO_BYTEPTR(temp2), W, msk, msk_stride, \
                                invert_mask);                                  \
                                                                               \
    return aom_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W,   \
                                               ref, ref_stride, sse);          \
  }                                                                            \
                                                                               \
  unsigned int aom_highbd_12_masked_sub_pixel_variance##W##x##H##_c(           \
      const uint8_t *src, int src_stride, int xoffset, int yoffset,            \
      const uint8_t *ref, int ref_stride, const uint8_t *second_pred,          \
      const uint8_t *msk, int msk_stride, int invert_mask,                     \
      unsigned int *sse) {                                                     \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
    DECLARE_ALIGNED(16, uint16_t, temp3[H * W]);                               \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        src, fdata3, src_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    aom_highbd_comp_mask_pred_c(temp3, second_pred, W, H,                      \
                                CONVERT_TO_BYTEPTR(temp2), W, msk, msk_stride, \
                                invert_mask);                                  \
                                                                               \
    return aom_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W,   \
                                               ref, ref_stride, sse);          \
  }

HIGHBD_MASK_SUBPIX_VAR(4, 4)
HIGHBD_MASK_SUBPIX_VAR(4, 8)
HIGHBD_MASK_SUBPIX_VAR(8, 4)
HIGHBD_MASK_SUBPIX_VAR(8, 8)
HIGHBD_MASK_SUBPIX_VAR(8, 16)
HIGHBD_MASK_SUBPIX_VAR(16, 8)
HIGHBD_MASK_SUBPIX_VAR(16, 16)
HIGHBD_MASK_SUBPIX_VAR(16, 32)
HIGHBD_MASK_SUBPIX_VAR(32, 16)
HIGHBD_MASK_SUBPIX_VAR(32, 32)
HIGHBD_MASK_SUBPIX_VAR(32, 64)
HIGHBD_MASK_SUBPIX_VAR(64, 32)
HIGHBD_MASK_SUBPIX_VAR(64, 64)
#if CONFIG_EXT_PARTITION
HIGHBD_MASK_SUBPIX_VAR(64, 128)
HIGHBD_MASK_SUBPIX_VAR(128, 64)
HIGHBD_MASK_SUBPIX_VAR(128, 128)
#endif  // CONFIG_EXT_PARTITION

#if CONFIG_EXT_PARTITION_TYPES
HIGHBD_MASK_SUBPIX_VAR(4, 16)
HIGHBD_MASK_SUBPIX_VAR(16, 4)
HIGHBD_MASK_SUBPIX_VAR(8, 32)
HIGHBD_MASK_SUBPIX_VAR(32, 8)
HIGHBD_MASK_SUBPIX_VAR(16, 64)
HIGHBD_MASK_SUBPIX_VAR(64, 16)
#if CONFIG_EXT_PARTITION
HIGHBD_MASK_SUBPIX_VAR(32, 128)
HIGHBD_MASK_SUBPIX_VAR(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_EXT_PARTITION_TYPES
#endif  // CONFIG_HIGHBITDEPTH
#endif  // CONFIG_AV1

#if CONFIG_AV1
static INLINE void obmc_variance(const uint8_t *pre, int pre_stride,
                                 const int32_t *wsrc, const int32_t *mask,
                                 int w, int h, unsigned int *sse, int *sum) {
  int i, j;

  *sse = 0;
  *sum = 0;

  for (i = 0; i < h; i++) {
    for (j = 0; j < w; j++) {
      int diff = ROUND_POWER_OF_TWO_SIGNED(wsrc[j] - pre[j] * mask[j], 12);
      *sum += diff;
      *sse += diff * diff;
    }

    pre += pre_stride;
    wsrc += w;
    mask += w;
  }
}

#define OBMC_VAR(W, H)                                            \
  unsigned int aom_obmc_variance##W##x##H##_c(                    \
      const uint8_t *pre, int pre_stride, const int32_t *wsrc,    \
      const int32_t *mask, unsigned int *sse) {                   \
    int sum;                                                      \
    obmc_variance(pre, pre_stride, wsrc, mask, W, H, sse, &sum);  \
    return *sse - (unsigned int)(((int64_t)sum * sum) / (W * H)); \
  }

#define OBMC_SUBPIX_VAR(W, H)                                               \
  unsigned int aom_obmc_sub_pixel_variance##W##x##H##_c(                    \
      const uint8_t *pre, int pre_stride, int xoffset, int yoffset,         \
      const int32_t *wsrc, const int32_t *mask, unsigned int *sse) {        \
    uint16_t fdata3[(H + 1) * W];                                           \
    uint8_t temp2[H * W];                                                   \
                                                                            \
    var_filter_block2d_bil_first_pass(pre, fdata3, pre_stride, 1, H + 1, W, \
                                      bilinear_filters_2t[xoffset]);        \
    var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W,           \
                                       bilinear_filters_2t[yoffset]);       \
                                                                            \
    return aom_obmc_variance##W##x##H##_c(temp2, W, wsrc, mask, sse);       \
  }

OBMC_VAR(4, 4)
OBMC_SUBPIX_VAR(4, 4)

OBMC_VAR(4, 8)
OBMC_SUBPIX_VAR(4, 8)

OBMC_VAR(8, 4)
OBMC_SUBPIX_VAR(8, 4)

OBMC_VAR(8, 8)
OBMC_SUBPIX_VAR(8, 8)

OBMC_VAR(8, 16)
OBMC_SUBPIX_VAR(8, 16)

OBMC_VAR(16, 8)
OBMC_SUBPIX_VAR(16, 8)

OBMC_VAR(16, 16)
OBMC_SUBPIX_VAR(16, 16)

OBMC_VAR(16, 32)
OBMC_SUBPIX_VAR(16, 32)

OBMC_VAR(32, 16)
OBMC_SUBPIX_VAR(32, 16)

OBMC_VAR(32, 32)
OBMC_SUBPIX_VAR(32, 32)

OBMC_VAR(32, 64)
OBMC_SUBPIX_VAR(32, 64)

OBMC_VAR(64, 32)
OBMC_SUBPIX_VAR(64, 32)

OBMC_VAR(64, 64)
OBMC_SUBPIX_VAR(64, 64)

#if CONFIG_EXT_PARTITION
OBMC_VAR(64, 128)
OBMC_SUBPIX_VAR(64, 128)

OBMC_VAR(128, 64)
OBMC_SUBPIX_VAR(128, 64)

OBMC_VAR(128, 128)
OBMC_SUBPIX_VAR(128, 128)
#endif  // CONFIG_EXT_PARTITION

#if CONFIG_EXT_PARTITION_TYPES
OBMC_VAR(4, 16)
OBMC_SUBPIX_VAR(4, 16)
OBMC_VAR(16, 4)
OBMC_SUBPIX_VAR(16, 4)
OBMC_VAR(8, 32)
OBMC_SUBPIX_VAR(8, 32)
OBMC_VAR(32, 8)
OBMC_SUBPIX_VAR(32, 8)
OBMC_VAR(16, 64)
OBMC_SUBPIX_VAR(16, 64)
OBMC_VAR(64, 16)
OBMC_SUBPIX_VAR(64, 16)
#if CONFIG_EXT_PARTITION
OBMC_VAR(32, 128)
OBMC_SUBPIX_VAR(32, 128)
OBMC_VAR(128, 32)
OBMC_SUBPIX_VAR(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_EXT_PARTITION_TYPES

#if CONFIG_HIGHBITDEPTH
static INLINE void highbd_obmc_variance64(const uint8_t *pre8, int pre_stride,
                                          const int32_t *wsrc,
                                          const int32_t *mask, int w, int h,
                                          uint64_t *sse, int64_t *sum) {
  int i, j;
  uint16_t *pre = CONVERT_TO_SHORTPTR(pre8);

  *sse = 0;
  *sum = 0;

  for (i = 0; i < h; i++) {
    for (j = 0; j < w; j++) {
      int diff = ROUND_POWER_OF_TWO_SIGNED(wsrc[j] - pre[j] * mask[j], 12);
      *sum += diff;
      *sse += diff * diff;
    }

    pre += pre_stride;
    wsrc += w;
    mask += w;
  }
}

static INLINE void highbd_obmc_variance(const uint8_t *pre8, int pre_stride,
                                        const int32_t *wsrc,
                                        const int32_t *mask, int w, int h,
                                        unsigned int *sse, int *sum) {
  int64_t sum64;
  uint64_t sse64;
  highbd_obmc_variance64(pre8, pre_stride, wsrc, mask, w, h, &sse64, &sum64);
  *sum = (int)sum64;
  *sse = (unsigned int)sse64;
}

static INLINE void highbd_10_obmc_variance(const uint8_t *pre8, int pre_stride,
                                           const int32_t *wsrc,
                                           const int32_t *mask, int w, int h,
                                           unsigned int *sse, int *sum) {
  int64_t sum64;
  uint64_t sse64;
  highbd_obmc_variance64(pre8, pre_stride, wsrc, mask, w, h, &sse64, &sum64);
  *sum = (int)ROUND_POWER_OF_TWO(sum64, 2);
  *sse = (unsigned int)ROUND_POWER_OF_TWO(sse64, 4);
}

static INLINE void highbd_12_obmc_variance(const uint8_t *pre8, int pre_stride,
                                           const int32_t *wsrc,
                                           const int32_t *mask, int w, int h,
                                           unsigned int *sse, int *sum) {
  int64_t sum64;
  uint64_t sse64;
  highbd_obmc_variance64(pre8, pre_stride, wsrc, mask, w, h, &sse64, &sum64);
  *sum = (int)ROUND_POWER_OF_TWO(sum64, 4);
  *sse = (unsigned int)ROUND_POWER_OF_TWO(sse64, 8);
}

#define HIGHBD_OBMC_VAR(W, H)                                              \
  unsigned int aom_highbd_obmc_variance##W##x##H##_c(                      \
      const uint8_t *pre, int pre_stride, const int32_t *wsrc,             \
      const int32_t *mask, unsigned int *sse) {                            \
    int sum;                                                               \
    highbd_obmc_variance(pre, pre_stride, wsrc, mask, W, H, sse, &sum);    \
    return *sse - (unsigned int)(((int64_t)sum * sum) / (W * H));          \
  }                                                                        \
                                                                           \
  unsigned int aom_highbd_10_obmc_variance##W##x##H##_c(                   \
      const uint8_t *pre, int pre_stride, const int32_t *wsrc,             \
      const int32_t *mask, unsigned int *sse) {                            \
    int sum;                                                               \
    int64_t var;                                                           \
    highbd_10_obmc_variance(pre, pre_stride, wsrc, mask, W, H, sse, &sum); \
    var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H));              \
    return (var >= 0) ? (uint32_t)var : 0;                                 \
  }                                                                        \
                                                                           \
  unsigned int aom_highbd_12_obmc_variance##W##x##H##_c(                   \
      const uint8_t *pre, int pre_stride, const int32_t *wsrc,             \
      const int32_t *mask, unsigned int *sse) {                            \
    int sum;                                                               \
    int64_t var;                                                           \
    highbd_12_obmc_variance(pre, pre_stride, wsrc, mask, W, H, sse, &sum); \
    var = (int64_t)(*sse) - (((int64_t)sum * sum) / (W * H));              \
    return (var >= 0) ? (uint32_t)var : 0;                                 \
  }

#define HIGHBD_OBMC_SUBPIX_VAR(W, H)                                           \
  unsigned int aom_highbd_obmc_sub_pixel_variance##W##x##H##_c(                \
      const uint8_t *pre, int pre_stride, int xoffset, int yoffset,            \
      const int32_t *wsrc, const int32_t *mask, unsigned int *sse) {           \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        pre, fdata3, pre_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    return aom_highbd_obmc_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, \
                                                 wsrc, mask, sse);             \
  }                                                                            \
                                                                               \
  unsigned int aom_highbd_10_obmc_sub_pixel_variance##W##x##H##_c(             \
      const uint8_t *pre, int pre_stride, int xoffset, int yoffset,            \
      const int32_t *wsrc, const int32_t *mask, unsigned int *sse) {           \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        pre, fdata3, pre_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    return aom_highbd_10_obmc_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
                                                    W, wsrc, mask, sse);       \
  }                                                                            \
                                                                               \
  unsigned int aom_highbd_12_obmc_sub_pixel_variance##W##x##H##_c(             \
      const uint8_t *pre, int pre_stride, int xoffset, int yoffset,            \
      const int32_t *wsrc, const int32_t *mask, unsigned int *sse) {           \
    uint16_t fdata3[(H + 1) * W];                                              \
    uint16_t temp2[H * W];                                                     \
                                                                               \
    aom_highbd_var_filter_block2d_bil_first_pass(                              \
        pre, fdata3, pre_stride, 1, H + 1, W, bilinear_filters_2t[xoffset]);   \
    aom_highbd_var_filter_block2d_bil_second_pass(                             \
        fdata3, temp2, W, W, H, W, bilinear_filters_2t[yoffset]);              \
                                                                               \
    return aom_highbd_12_obmc_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
                                                    W, wsrc, mask, sse);       \
  }

HIGHBD_OBMC_VAR(4, 4)
HIGHBD_OBMC_SUBPIX_VAR(4, 4)

HIGHBD_OBMC_VAR(4, 8)
HIGHBD_OBMC_SUBPIX_VAR(4, 8)

HIGHBD_OBMC_VAR(8, 4)
HIGHBD_OBMC_SUBPIX_VAR(8, 4)

HIGHBD_OBMC_VAR(8, 8)
HIGHBD_OBMC_SUBPIX_VAR(8, 8)

HIGHBD_OBMC_VAR(8, 16)
HIGHBD_OBMC_SUBPIX_VAR(8, 16)

HIGHBD_OBMC_VAR(16, 8)
HIGHBD_OBMC_SUBPIX_VAR(16, 8)

HIGHBD_OBMC_VAR(16, 16)
HIGHBD_OBMC_SUBPIX_VAR(16, 16)

HIGHBD_OBMC_VAR(16, 32)
HIGHBD_OBMC_SUBPIX_VAR(16, 32)

HIGHBD_OBMC_VAR(32, 16)
HIGHBD_OBMC_SUBPIX_VAR(32, 16)

HIGHBD_OBMC_VAR(32, 32)
HIGHBD_OBMC_SUBPIX_VAR(32, 32)

HIGHBD_OBMC_VAR(32, 64)
HIGHBD_OBMC_SUBPIX_VAR(32, 64)

HIGHBD_OBMC_VAR(64, 32)
HIGHBD_OBMC_SUBPIX_VAR(64, 32)

HIGHBD_OBMC_VAR(64, 64)
HIGHBD_OBMC_SUBPIX_VAR(64, 64)

#if CONFIG_EXT_PARTITION
HIGHBD_OBMC_VAR(64, 128)
HIGHBD_OBMC_SUBPIX_VAR(64, 128)

HIGHBD_OBMC_VAR(128, 64)
HIGHBD_OBMC_SUBPIX_VAR(128, 64)

HIGHBD_OBMC_VAR(128, 128)
HIGHBD_OBMC_SUBPIX_VAR(128, 128)
#endif  // CONFIG_EXT_PARTITION

#if CONFIG_EXT_PARTITION_TYPES
HIGHBD_OBMC_VAR(4, 16)
HIGHBD_OBMC_SUBPIX_VAR(4, 16)
HIGHBD_OBMC_VAR(16, 4)
HIGHBD_OBMC_SUBPIX_VAR(16, 4)
HIGHBD_OBMC_VAR(8, 32)
HIGHBD_OBMC_SUBPIX_VAR(8, 32)
HIGHBD_OBMC_VAR(32, 8)
HIGHBD_OBMC_SUBPIX_VAR(32, 8)
HIGHBD_OBMC_VAR(16, 64)
HIGHBD_OBMC_SUBPIX_VAR(16, 64)
HIGHBD_OBMC_VAR(64, 16)
HIGHBD_OBMC_SUBPIX_VAR(64, 16)
#if CONFIG_EXT_PARTITION
HIGHBD_OBMC_VAR(32, 128)
HIGHBD_OBMC_SUBPIX_VAR(32, 128)
HIGHBD_OBMC_VAR(128, 32)
HIGHBD_OBMC_SUBPIX_VAR(128, 32)
#endif  // CONFIG_EXT_PARTITION
#endif  // CONFIG_EXT_PARTITION_TYPES
#endif  // CONFIG_HIGHBITDEPTH
#endif  // CONFIG_AV1