libvpx: Pull from upstream

source/libvpx/vp9/encoder/x86/vp9_variance_mmx.c

-/*
- *  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 "./vpx_config.h"
-#include "vp9/encoder/vp9_variance.h"
-#include "vpx_ports/mem.h"
-
-unsigned int vp9_get8x8var_mmx(const uint8_t *src, int src_stride,
-                               const uint8_t *ref, int ref_stride,
-                               unsigned int *sse, int *sum);
-
-unsigned int vp9_get4x4var_mmx(const uint8_t *src, int src_stride,
-                               const uint8_t *ref, int ref_stride,
-                               unsigned int *SSE, int *sum);
-
-unsigned int vp9_variance4x4_mmx(const uint8_t *src, int src_stride,
-                                 const uint8_t *ref, int ref_stride,
-                                 unsigned int *sse) {
-  int sum;
-  vp9_get4x4var_mmx(src, src_stride, ref, ref_stride, sse, &sum);
-  return *sse - (((unsigned int)sum * sum) >> 4);
-}
-
-unsigned int vp9_variance8x8_mmx(const uint8_t *src, int src_stride,
-                                 const uint8_t *ref, int ref_stride,
-                                 unsigned int *sse) {
-  int sum;
-  vp9_get8x8var_mmx(src, src_stride, ref, ref_stride, sse, &sum);
-  return *sse - (((unsigned int)sum * sum) >> 6);
-}
-
-unsigned int vp9_mse16x16_mmx(const uint8_t *src, int src_stride,
-                              const uint8_t *ref, int ref_stride,
-                              unsigned int *sse) {
-  unsigned int sse0, sse1, sse2, sse3;
-  int sum0, sum1, sum2, sum3;
-
-  vp9_get8x8var_mmx(src, src_stride, ref, ref_stride, &sse0, &sum0);
-  vp9_get8x8var_mmx(src + 8, src_stride, ref + 8, ref_stride, &sse1, &sum1);
-  vp9_get8x8var_mmx(src + 8 * src_stride, src_stride,
-                    ref + 8 * ref_stride, ref_stride, &sse2, &sum2);
-  vp9_get8x8var_mmx(src + 8 * src_stride + 8, src_stride,
-                    ref + 8 * ref_stride + 8, ref_stride, &sse3, &sum3);
-
-  *sse = sse0 + sse1 + sse2 + sse3;
-  return *sse;
-}
-
-
-unsigned int vp9_variance16x16_mmx(const uint8_t *src, int src_stride,
-                                   const uint8_t *ref, int ref_stride,
-                                   unsigned int *sse) {
-  unsigned int sse0, sse1, sse2, sse3;
-  int sum0, sum1, sum2, sum3, sum;
-
-  vp9_get8x8var_mmx(src, src_stride, ref, ref_stride, &sse0, &sum0);
-  vp9_get8x8var_mmx(src + 8, src_stride, ref + 8, ref_stride, &sse1, &sum1);
-  vp9_get8x8var_mmx(src + 8 * src_stride, src_stride,
-                    ref + 8 * ref_stride, ref_stride, &sse2, &sum2);
-  vp9_get8x8var_mmx(src + 8 * src_stride + 8, src_stride,
-                    ref + 8 * ref_stride + 8, ref_stride, &sse3, &sum3);
-
-  *sse = sse0 + sse1 + sse2 + sse3;
-  sum = sum0 + sum1 + sum2 + sum3;
-  return *sse - (((unsigned int)sum * sum) >> 8);
-}
-
-unsigned int vp9_variance16x8_mmx(const uint8_t *src, int src_stride,
-                                  const uint8_t *ref, int ref_stride,
-                                  unsigned int *sse) {
-  unsigned int sse0, sse1;
-  int sum0, sum1, sum;
-
-  vp9_get8x8var_mmx(src, src_stride, ref, ref_stride, &sse0, &sum0);
-  vp9_get8x8var_mmx(src + 8, src_stride, ref + 8, ref_stride, &sse1, &sum1);
-
-  *sse = sse0 + sse1;
-  sum = sum0 + sum1;
-  return *sse - (((unsigned int)sum * sum) >> 7);
-}
-
-
-unsigned int vp9_variance8x16_mmx(const uint8_t *src, int src_stride,
-                                  const uint8_t *ref, int ref_stride,
-                                  unsigned int *sse) {
-  unsigned int sse0, sse1;
-  int sum0, sum1, sum;
-
-  vp9_get8x8var_mmx(src, src_stride, ref, ref_stride, &sse0, &sum0);
-  vp9_get8x8var_mmx(src + 8 * src_stride, src_stride,
-                    ref + 8 * ref_stride, ref_stride, &sse1, &sum1);
-
-  *sse = sse0 + sse1;
-  sum = sum0 + sum1;
-  return *sse - (((unsigned int)sum * sum) >> 7);
-}