source/libvpx/vp9/encoder/vp9_variance.c - platform/external/chromium_org/third_party/libvpx - Git at Google

 /*
  *  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 "./vp9_rtcd.h"

 #include "vpx_ports/mem.h"
 #include "vpx/vpx_integer.h"

 #include "vp9/common/vp9_common.h"
 #include "vp9/common/vp9_filter.h"

 #include "vp9/encoder/vp9_variance.h"

 void variance(const uint8_t *a, int  a_stride,
               const uint8_t *b, int  b_stride,
               int  w, int  h, unsigned int *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;
   }
 }

 // Applies a 1-D 2-tap bi-linear filter to the source block in either horizontal
 // or vertical direction to produce the filtered output block. Used to implement
 // first-pass of 2-D separable filter.
 //
 // Produces int32_t output to retain precision for next pass. Two filter taps
 // should sum to VP9_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 *src_ptr,
                                               uint16_t *output_ptr,
                                               unsigned int src_pixels_per_line,
                                               int pixel_step,
                                               unsigned int output_height,
                                               unsigned int output_width,
                                               const int16_t *vp9_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] * vp9_filter[0] +
                           (int)src_ptr[pixel_step] * vp9_filter[1],
                           FILTER_BITS);

       src_ptr++;
     }

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

 // Applies a 1-D 2-tap bi-linear filter to the source block in either horizontal
 // or vertical direction to produce the filtered output block. Used to implement
 // second-pass of 2-D separable filter.
 //
 // Requires 32-bit input as produced by filter_block2d_bil_first_pass. Two
 // filter taps should sum to VP9_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_second_pass(const uint16_t *src_ptr,
                                                uint8_t *output_ptr,
                                                unsigned int src_pixels_per_line,
                                                unsigned int pixel_step,
                                                unsigned int output_height,
                                                unsigned int output_width,
                                                const int16_t *vp9_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] * vp9_filter[0] +
                           (int)src_ptr[pixel_step] * vp9_filter[1],
                           FILTER_BITS);
       src_ptr++;
     }

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

 unsigned int vp9_get_mb_ss_c(const int16_t *src_ptr) {
   unsigned int i, sum = 0;

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

   return sum;
 }

 #define VAR(W, H) \
 unsigned int vp9_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
                                        const uint8_t *b, int b_stride, \
                                        unsigned int *sse) { \
   int sum; \
   variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
   return *sse - (((int64_t)sum * sum) / (W * H)); \
 }

 #define SUBPIX_VAR(W, H) \
 unsigned int vp9_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, \
   unsigned int *sse) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint8_t temp2[H * W]; \
 \
   var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, W, \
                                     BILINEAR_FILTERS_2TAP(xoffset)); \
   var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                      BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   return vp9_variance##W##x##H##_c(temp2, W, dst, dst_stride, sse); \
 }

 #define SUBPIX_AVG_VAR(W, H) \
 unsigned int vp9_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, \
   unsigned int *sse, \
   const uint8_t *second_pred) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint8_t temp2[H * W]; \
   DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, H * W); \
 \
   var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, W, \
                                     BILINEAR_FILTERS_2TAP(xoffset)); \
   var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                      BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   vp9_comp_avg_pred(temp3, second_pred, W, H, temp2, W); \
 \
   return vp9_variance##W##x##H##_c(temp3, W, dst, dst_stride, sse); \
 }

 void vp9_get16x16var_c(const uint8_t *src_ptr, int source_stride,
                        const uint8_t *ref_ptr, int ref_stride,
                        unsigned int *sse, int *sum) {
   variance(src_ptr, source_stride, ref_ptr, ref_stride, 16, 16, sse, sum);
 }

 void vp9_get8x8var_c(const uint8_t *src_ptr, int source_stride,
                      const uint8_t *ref_ptr, int ref_stride,
                      unsigned int *sse, int *sum) {
   variance(src_ptr, source_stride, ref_ptr, ref_stride, 8, 8, sse, sum);
 }

 unsigned int vp9_mse16x16_c(const uint8_t *src, int src_stride,
                             const uint8_t *ref, int ref_stride,
                             unsigned int *sse) {
   int sum;
   variance(src, src_stride, ref, ref_stride, 16, 16, sse, &sum);
   return *sse;
 }

 unsigned int vp9_mse16x8_c(const uint8_t *src, int src_stride,
                            const uint8_t *ref, int ref_stride,
                            unsigned int *sse) {
   int sum;
   variance(src, src_stride, ref, ref_stride, 16, 8, sse, &sum);
   return *sse;
 }

 unsigned int vp9_mse8x16_c(const uint8_t *src, int src_stride,
                            const uint8_t *ref, int ref_stride,
                            unsigned int *sse) {
   int sum;
   variance(src, src_stride, ref, ref_stride, 8, 16, sse, &sum);
   return *sse;
 }

 unsigned int vp9_mse8x8_c(const uint8_t *src, int src_stride,
                           const uint8_t *ref, int ref_stride,
                           unsigned int *sse) {
   int sum;
   variance(src, src_stride, ref, ref_stride, 8, 8, sse, &sum);
   return *sse;
 }

 VAR(4, 4)
 SUBPIX_VAR(4, 4)
 SUBPIX_AVG_VAR(4, 4)

 VAR(4, 8)
 SUBPIX_VAR(4, 8)
 SUBPIX_AVG_VAR(4, 8)

 VAR(8, 4)
 SUBPIX_VAR(8, 4)
 SUBPIX_AVG_VAR(8, 4)

 VAR(8, 8)
 SUBPIX_VAR(8, 8)
 SUBPIX_AVG_VAR(8, 8)

 VAR(8, 16)
 SUBPIX_VAR(8, 16)
 SUBPIX_AVG_VAR(8, 16)

 VAR(16, 8)
 SUBPIX_VAR(16, 8)
 SUBPIX_AVG_VAR(16, 8)

 VAR(16, 16)
 SUBPIX_VAR(16, 16)
 SUBPIX_AVG_VAR(16, 16)

 VAR(16, 32)
 SUBPIX_VAR(16, 32)
 SUBPIX_AVG_VAR(16, 32)

 VAR(32, 16)
 SUBPIX_VAR(32, 16)
 SUBPIX_AVG_VAR(32, 16)

 VAR(32, 32)
 SUBPIX_VAR(32, 32)
 SUBPIX_AVG_VAR(32, 32)

 VAR(32, 64)
 SUBPIX_VAR(32, 64)
 SUBPIX_AVG_VAR(32, 64)

 VAR(64, 32)
 SUBPIX_VAR(64, 32)
 SUBPIX_AVG_VAR(64, 32)

 VAR(64, 64)
 SUBPIX_VAR(64, 64)
 SUBPIX_AVG_VAR(64, 64)

 void vp9_comp_avg_pred(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;
   }
 }

 #if CONFIG_VP9_HIGHBITDEPTH
 void highbd_variance64(const uint8_t *a8, int  a_stride,
                        const uint8_t *b8, int  b_stride,
                        int w, int h, uint64_t *sse,
                        uint64_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;
   }
 }

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

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

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

 static void 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 int16_t *vp9_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] * vp9_filter[0] +
                              (int)src_ptr[pixel_step] * vp9_filter[1],
                              FILTER_BITS);

       src_ptr++;
     }

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

 static void 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 int16_t *vp9_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] * vp9_filter[0] +
                              (int)src_ptr[pixel_step] * vp9_filter[1],
                              FILTER_BITS);
       src_ptr++;
     }

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

 #define HIGHBD_VAR(W, H) \
 unsigned int vp9_highbd_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
                                               const uint8_t *b, int b_stride, \
                                               unsigned int *sse) { \
   int sum; \
   highbd_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
   return *sse - (((int64_t)sum * sum) / (W * H)); \
 } \
 \
 unsigned int vp9_highbd_10_variance##W##x##H##_c(const uint8_t *a, \
                                                  int a_stride, \
                                                  const uint8_t *b, \
                                                  int b_stride, \
                                                  unsigned int *sse) { \
   int sum; \
   highbd_10_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
   return *sse - (((int64_t)sum * sum) / (W * H)); \
 } \
 \
 unsigned int vp9_highbd_12_variance##W##x##H##_c(const uint8_t *a, \
                                                  int a_stride, \
                                                  const uint8_t *b, \
                                                  int b_stride, \
                                                  unsigned int *sse) { \
   int sum; \
   highbd_12_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
   return *sse - (((int64_t)sum * sum) / (W * H)); \
 }

 #define HIGHBD_SUBPIX_VAR(W, H) \
 unsigned int vp9_highbd_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, \
   unsigned int *sse) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   return vp9_highbd_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, dst, \
                                           dst_stride, sse); \
 } \
 \
 unsigned int vp9_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, \
   unsigned int *sse) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   return vp9_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
                                              W, dst, dst_stride, sse); \
 } \
 \
 unsigned int vp9_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, \
   unsigned int *sse) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   return vp9_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
                                              W, dst, dst_stride, sse); \
 }

 #define HIGHBD_SUBPIX_AVG_VAR(W, H) \
 unsigned int vp9_highbd_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, \
   unsigned int *sse, \
   const uint8_t *second_pred) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
   DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
                            CONVERT_TO_BYTEPTR(temp2), W); \
 \
   return vp9_highbd_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, dst, \
                                           dst_stride, sse); \
 } \
 \
 unsigned int vp9_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, \
   unsigned int *sse, \
   const uint8_t *second_pred) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
   DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
                            CONVERT_TO_BYTEPTR(temp2), W); \
 \
   return vp9_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), \
                                              W, dst, dst_stride, sse); \
 } \
 \
 unsigned int vp9_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, \
   unsigned int *sse, \
   const uint8_t *second_pred) { \
   uint16_t fdata3[(H + 1) * W]; \
   uint16_t temp2[H * W]; \
   DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
 \
   highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
                                            W, BILINEAR_FILTERS_2TAP(xoffset)); \
   highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
                                             BILINEAR_FILTERS_2TAP(yoffset)); \
 \
   vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
                            CONVERT_TO_BYTEPTR(temp2), W); \
 \
   return vp9_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), \
                                              W, dst, dst_stride, sse); \
 }

 #define HIGHBD_GET_VAR(S) \
 void vp9_highbd_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
                                     const uint8_t *ref, int ref_stride, \
                                     unsigned int *sse, int *sum) { \
   highbd_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
 } \
 \
 void vp9_highbd_10_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
                                        const uint8_t *ref, int ref_stride, \
                                        unsigned int *sse, int *sum) { \
   highbd_10_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
 } \
 \
 void vp9_highbd_12_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
                                        const uint8_t *ref, int ref_stride, \
                                        unsigned int *sse, int *sum) { \
   highbd_12_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
 }

 #define HIGHBD_MSE(W, H) \
 unsigned int vp9_highbd_mse##W##x##H##_c(const uint8_t *src, \
                                          int src_stride, \
                                          const uint8_t *ref, \
                                          int ref_stride, \
                                          unsigned int *sse) { \
   int sum; \
   highbd_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
   return *sse; \
 } \
 \
 unsigned int vp9_highbd_10_mse##W##x##H##_c(const uint8_t *src, \
                                             int src_stride, \
                                             const uint8_t *ref, \
                                             int ref_stride, \
                                             unsigned int *sse) { \
   int sum; \
   highbd_10_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
   return *sse; \
 } \
 \
 unsigned int vp9_highbd_12_mse##W##x##H##_c(const uint8_t *src, \
                                             int src_stride, \
                                             const uint8_t *ref, \
                                             int ref_stride, \
                                             unsigned int *sse) { \
   int sum; \
   highbd_12_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
   return *sse; \
 }

 HIGHBD_GET_VAR(8)
 HIGHBD_GET_VAR(16)

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

 HIGHBD_VAR(4, 4)
 HIGHBD_SUBPIX_VAR(4, 4)
 HIGHBD_SUBPIX_AVG_VAR(4, 4)

 HIGHBD_VAR(4, 8)
 HIGHBD_SUBPIX_VAR(4, 8)
 HIGHBD_SUBPIX_AVG_VAR(4, 8)

 HIGHBD_VAR(8, 4)
 HIGHBD_SUBPIX_VAR(8, 4)
 HIGHBD_SUBPIX_AVG_VAR(8, 4)

 HIGHBD_VAR(8, 8)
 HIGHBD_SUBPIX_VAR(8, 8)
 HIGHBD_SUBPIX_AVG_VAR(8, 8)

 HIGHBD_VAR(8, 16)
 HIGHBD_SUBPIX_VAR(8, 16)
 HIGHBD_SUBPIX_AVG_VAR(8, 16)

 HIGHBD_VAR(16, 8)
 HIGHBD_SUBPIX_VAR(16, 8)
 HIGHBD_SUBPIX_AVG_VAR(16, 8)

 HIGHBD_VAR(16, 16)
 HIGHBD_SUBPIX_VAR(16, 16)
 HIGHBD_SUBPIX_AVG_VAR(16, 16)

 HIGHBD_VAR(16, 32)
 HIGHBD_SUBPIX_VAR(16, 32)
 HIGHBD_SUBPIX_AVG_VAR(16, 32)

 HIGHBD_VAR(32, 16)
 HIGHBD_SUBPIX_VAR(32, 16)
 HIGHBD_SUBPIX_AVG_VAR(32, 16)

 HIGHBD_VAR(32, 32)
 HIGHBD_SUBPIX_VAR(32, 32)
 HIGHBD_SUBPIX_AVG_VAR(32, 32)

 HIGHBD_VAR(32, 64)
 HIGHBD_SUBPIX_VAR(32, 64)
 HIGHBD_SUBPIX_AVG_VAR(32, 64)

 HIGHBD_VAR(64, 32)
 HIGHBD_SUBPIX_VAR(64, 32)
 HIGHBD_SUBPIX_AVG_VAR(64, 32)

 HIGHBD_VAR(64, 64)
 HIGHBD_SUBPIX_VAR(64, 64)
 HIGHBD_SUBPIX_AVG_VAR(64, 64)

 void vp9_highbd_comp_avg_pred(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;
   }
 }
 #endif  // CONFIG_VP9_HIGHBITDEPTH
	/*
	* 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 "./vp9_rtcd.h"

	#include "vpx_ports/mem.h"
	#include "vpx/vpx_integer.h"

	#include "vp9/common/vp9_common.h"
	#include "vp9/common/vp9_filter.h"

	#include "vp9/encoder/vp9_variance.h"

	void variance(const uint8_t *a, int a_stride,
	const uint8_t *b, int b_stride,
	int w, int h, unsigned int 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;
	}
	}

	// Applies a 1-D 2-tap bi-linear filter to the source block in either horizontal
	// or vertical direction to produce the filtered output block. Used to implement
	// first-pass of 2-D separable filter.
	//
	// Produces int32_t output to retain precision for next pass. Two filter taps
	// should sum to VP9_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 *src_ptr,
	uint16_t *output_ptr,
	unsigned int src_pixels_per_line,
	int pixel_step,
	unsigned int output_height,
	unsigned int output_width,
	const int16_t *vp9_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] * vp9_filter[0] +
	(int)src_ptr[pixel_step] * vp9_filter[1],
	FILTER_BITS);

	src_ptr++;
	}

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

	// Applies a 1-D 2-tap bi-linear filter to the source block in either horizontal
	// or vertical direction to produce the filtered output block. Used to implement
	// second-pass of 2-D separable filter.
	//
	// Requires 32-bit input as produced by filter_block2d_bil_first_pass. Two
	// filter taps should sum to VP9_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_second_pass(const uint16_t *src_ptr,
	uint8_t *output_ptr,
	unsigned int src_pixels_per_line,
	unsigned int pixel_step,
	unsigned int output_height,
	unsigned int output_width,
	const int16_t *vp9_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] * vp9_filter[0] +
	(int)src_ptr[pixel_step] * vp9_filter[1],
	FILTER_BITS);
	src_ptr++;
	}

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

	unsigned int vp9_get_mb_ss_c(const int16_t *src_ptr) {
	unsigned int i, sum = 0;

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

	return sum;
	}

	#define VAR(W, H) \
	unsigned int vp9_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
	const uint8_t *b, int b_stride, \
	unsigned int *sse) { \
	int sum; \
	variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
	return sse - (((int64_t)sum sum) / (W * H)); \
	}

	#define SUBPIX_VAR(W, H) \
	unsigned int vp9_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, \
	unsigned int *sse) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint8_t temp2[H * W]; \
	\
	var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, W, \
	BILINEAR_FILTERS_2TAP(xoffset)); \
	var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	return vp9_variance##W##x##H##_c(temp2, W, dst, dst_stride, sse); \
	}

	#define SUBPIX_AVG_VAR(W, H) \
	unsigned int vp9_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, \
	unsigned int *sse, \
	const uint8_t *second_pred) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint8_t temp2[H * W]; \
	DECLARE_ALIGNED_ARRAY(16, uint8_t, temp3, H * W); \
	\
	var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, W, \
	BILINEAR_FILTERS_2TAP(xoffset)); \
	var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	vp9_comp_avg_pred(temp3, second_pred, W, H, temp2, W); \
	\
	return vp9_variance##W##x##H##_c(temp3, W, dst, dst_stride, sse); \
	}

	void vp9_get16x16var_c(const uint8_t *src_ptr, int source_stride,
	const uint8_t *ref_ptr, int ref_stride,
	unsigned int sse, int sum) {
	variance(src_ptr, source_stride, ref_ptr, ref_stride, 16, 16, sse, sum);
	}

	void vp9_get8x8var_c(const uint8_t *src_ptr, int source_stride,
	const uint8_t *ref_ptr, int ref_stride,
	unsigned int sse, int sum) {
	variance(src_ptr, source_stride, ref_ptr, ref_stride, 8, 8, sse, sum);
	}

	unsigned int vp9_mse16x16_c(const uint8_t *src, int src_stride,
	const uint8_t *ref, int ref_stride,
	unsigned int *sse) {
	int sum;
	variance(src, src_stride, ref, ref_stride, 16, 16, sse, &sum);
	return *sse;
	}

	unsigned int vp9_mse16x8_c(const uint8_t *src, int src_stride,
	const uint8_t *ref, int ref_stride,
	unsigned int *sse) {
	int sum;
	variance(src, src_stride, ref, ref_stride, 16, 8, sse, &sum);
	return *sse;
	}

	unsigned int vp9_mse8x16_c(const uint8_t *src, int src_stride,
	const uint8_t *ref, int ref_stride,
	unsigned int *sse) {
	int sum;
	variance(src, src_stride, ref, ref_stride, 8, 16, sse, &sum);
	return *sse;
	}

	unsigned int vp9_mse8x8_c(const uint8_t *src, int src_stride,
	const uint8_t *ref, int ref_stride,
	unsigned int *sse) {
	int sum;
	variance(src, src_stride, ref, ref_stride, 8, 8, sse, &sum);
	return *sse;
	}

	VAR(4, 4)
	SUBPIX_VAR(4, 4)
	SUBPIX_AVG_VAR(4, 4)

	VAR(4, 8)
	SUBPIX_VAR(4, 8)
	SUBPIX_AVG_VAR(4, 8)

	VAR(8, 4)
	SUBPIX_VAR(8, 4)
	SUBPIX_AVG_VAR(8, 4)

	VAR(8, 8)
	SUBPIX_VAR(8, 8)
	SUBPIX_AVG_VAR(8, 8)

	VAR(8, 16)
	SUBPIX_VAR(8, 16)
	SUBPIX_AVG_VAR(8, 16)

	VAR(16, 8)
	SUBPIX_VAR(16, 8)
	SUBPIX_AVG_VAR(16, 8)

	VAR(16, 16)
	SUBPIX_VAR(16, 16)
	SUBPIX_AVG_VAR(16, 16)

	VAR(16, 32)
	SUBPIX_VAR(16, 32)
	SUBPIX_AVG_VAR(16, 32)

	VAR(32, 16)
	SUBPIX_VAR(32, 16)
	SUBPIX_AVG_VAR(32, 16)

	VAR(32, 32)
	SUBPIX_VAR(32, 32)
	SUBPIX_AVG_VAR(32, 32)

	VAR(32, 64)
	SUBPIX_VAR(32, 64)
	SUBPIX_AVG_VAR(32, 64)

	VAR(64, 32)
	SUBPIX_VAR(64, 32)
	SUBPIX_AVG_VAR(64, 32)

	VAR(64, 64)
	SUBPIX_VAR(64, 64)
	SUBPIX_AVG_VAR(64, 64)

	void vp9_comp_avg_pred(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;
	}
	}

	#if CONFIG_VP9_HIGHBITDEPTH
	void highbd_variance64(const uint8_t *a8, int a_stride,
	const uint8_t *b8, int b_stride,
	int w, int h, uint64_t *sse,
	uint64_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;
	}
	}

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

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

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

	static void 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 int16_t *vp9_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] * vp9_filter[0] +
	(int)src_ptr[pixel_step] * vp9_filter[1],
	FILTER_BITS);

	src_ptr++;
	}

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

	static void 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 int16_t *vp9_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] * vp9_filter[0] +
	(int)src_ptr[pixel_step] * vp9_filter[1],
	FILTER_BITS);
	src_ptr++;
	}

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

	#define HIGHBD_VAR(W, H) \
	unsigned int vp9_highbd_variance##W##x##H##_c(const uint8_t *a, int a_stride, \
	const uint8_t *b, int b_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
	return sse - (((int64_t)sum sum) / (W * H)); \
	} \
	\
	unsigned int vp9_highbd_10_variance##W##x##H##_c(const uint8_t *a, \
	int a_stride, \
	const uint8_t *b, \
	int b_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_10_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
	return sse - (((int64_t)sum sum) / (W * H)); \
	} \
	\
	unsigned int vp9_highbd_12_variance##W##x##H##_c(const uint8_t *a, \
	int a_stride, \
	const uint8_t *b, \
	int b_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_12_variance(a, a_stride, b, b_stride, W, H, sse, &sum); \
	return sse - (((int64_t)sum sum) / (W * H)); \
	}

	#define HIGHBD_SUBPIX_VAR(W, H) \
	unsigned int vp9_highbd_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, \
	unsigned int *sse) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	return vp9_highbd_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), W, dst, \
	dst_stride, sse); \
	} \
	\
	unsigned int vp9_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, \
	unsigned int *sse) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	return vp9_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
	W, dst, dst_stride, sse); \
	} \
	\
	unsigned int vp9_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, \
	unsigned int *sse) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	return vp9_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp2), \
	W, dst, dst_stride, sse); \
	}

	#define HIGHBD_SUBPIX_AVG_VAR(W, H) \
	unsigned int vp9_highbd_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, \
	unsigned int *sse, \
	const uint8_t *second_pred) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
	CONVERT_TO_BYTEPTR(temp2), W); \
	\
	return vp9_highbd_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), W, dst, \
	dst_stride, sse); \
	} \
	\
	unsigned int vp9_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, \
	unsigned int *sse, \
	const uint8_t *second_pred) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
	CONVERT_TO_BYTEPTR(temp2), W); \
	\
	return vp9_highbd_10_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), \
	W, dst, dst_stride, sse); \
	} \
	\
	unsigned int vp9_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, \
	unsigned int *sse, \
	const uint8_t *second_pred) { \
	uint16_t fdata3[(H + 1) * W]; \
	uint16_t temp2[H * W]; \
	DECLARE_ALIGNED_ARRAY(16, uint16_t, temp3, H * W); \
	\
	highbd_var_filter_block2d_bil_first_pass(src, fdata3, src_stride, 1, H + 1, \
	W, BILINEAR_FILTERS_2TAP(xoffset)); \
	highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, W, W, H, W, \
	BILINEAR_FILTERS_2TAP(yoffset)); \
	\
	vp9_highbd_comp_avg_pred(temp3, second_pred, W, H, \
	CONVERT_TO_BYTEPTR(temp2), W); \
	\
	return vp9_highbd_12_variance##W##x##H##_c(CONVERT_TO_BYTEPTR(temp3), \
	W, dst, dst_stride, sse); \
	}

	#define HIGHBD_GET_VAR(S) \
	void vp9_highbd_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
	const uint8_t *ref, int ref_stride, \
	unsigned int sse, int sum) { \
	highbd_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
	} \
	\
	void vp9_highbd_10_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
	const uint8_t *ref, int ref_stride, \
	unsigned int sse, int sum) { \
	highbd_10_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
	} \
	\
	void vp9_highbd_12_get##S##x##S##var_c(const uint8_t *src, int src_stride, \
	const uint8_t *ref, int ref_stride, \
	unsigned int sse, int sum) { \
	highbd_12_variance(src, src_stride, ref, ref_stride, S, S, sse, sum); \
	}

	#define HIGHBD_MSE(W, H) \
	unsigned int vp9_highbd_mse##W##x##H##_c(const uint8_t *src, \
	int src_stride, \
	const uint8_t *ref, \
	int ref_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
	return *sse; \
	} \
	\
	unsigned int vp9_highbd_10_mse##W##x##H##_c(const uint8_t *src, \
	int src_stride, \
	const uint8_t *ref, \
	int ref_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_10_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
	return *sse; \
	} \
	\
	unsigned int vp9_highbd_12_mse##W##x##H##_c(const uint8_t *src, \
	int src_stride, \
	const uint8_t *ref, \
	int ref_stride, \
	unsigned int *sse) { \
	int sum; \
	highbd_12_variance(src, src_stride, ref, ref_stride, W, H, sse, &sum); \
	return *sse; \
	}

	HIGHBD_GET_VAR(8)
	HIGHBD_GET_VAR(16)

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

	HIGHBD_VAR(4, 4)
	HIGHBD_SUBPIX_VAR(4, 4)
	HIGHBD_SUBPIX_AVG_VAR(4, 4)

	HIGHBD_VAR(4, 8)
	HIGHBD_SUBPIX_VAR(4, 8)
	HIGHBD_SUBPIX_AVG_VAR(4, 8)

	HIGHBD_VAR(8, 4)
	HIGHBD_SUBPIX_VAR(8, 4)
	HIGHBD_SUBPIX_AVG_VAR(8, 4)

	HIGHBD_VAR(8, 8)
	HIGHBD_SUBPIX_VAR(8, 8)
	HIGHBD_SUBPIX_AVG_VAR(8, 8)

	HIGHBD_VAR(8, 16)
	HIGHBD_SUBPIX_VAR(8, 16)
	HIGHBD_SUBPIX_AVG_VAR(8, 16)

	HIGHBD_VAR(16, 8)
	HIGHBD_SUBPIX_VAR(16, 8)
	HIGHBD_SUBPIX_AVG_VAR(16, 8)

	HIGHBD_VAR(16, 16)
	HIGHBD_SUBPIX_VAR(16, 16)
	HIGHBD_SUBPIX_AVG_VAR(16, 16)

	HIGHBD_VAR(16, 32)
	HIGHBD_SUBPIX_VAR(16, 32)
	HIGHBD_SUBPIX_AVG_VAR(16, 32)

	HIGHBD_VAR(32, 16)
	HIGHBD_SUBPIX_VAR(32, 16)
	HIGHBD_SUBPIX_AVG_VAR(32, 16)

	HIGHBD_VAR(32, 32)
	HIGHBD_SUBPIX_VAR(32, 32)
	HIGHBD_SUBPIX_AVG_VAR(32, 32)

	HIGHBD_VAR(32, 64)
	HIGHBD_SUBPIX_VAR(32, 64)
	HIGHBD_SUBPIX_AVG_VAR(32, 64)

	HIGHBD_VAR(64, 32)
	HIGHBD_SUBPIX_VAR(64, 32)
	HIGHBD_SUBPIX_AVG_VAR(64, 32)

	HIGHBD_VAR(64, 64)
	HIGHBD_SUBPIX_VAR(64, 64)
	HIGHBD_SUBPIX_AVG_VAR(64, 64)

	void vp9_highbd_comp_avg_pred(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;
	}
	}
	#endif // CONFIG_VP9_HIGHBITDEPTH