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/*
* 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_dsp_rtcd.h"
extern void vpx_get4x4var_mmx(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
unsigned int *sse, int *sum);
unsigned int vpx_variance4x4_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int var;
int avg;
vpx_get4x4var_mmx(a, a_stride, b, b_stride, &var, &avg);
*sse = var;
return (var - (((unsigned int)avg * avg) >> 4));
}
unsigned int vpx_variance8x8_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int var;
int avg;
vpx_get8x8var_mmx(a, a_stride, b, b_stride, &var, &avg);
*sse = var;
return (var - (((unsigned int)avg * avg) >> 6));
}
unsigned int vpx_mse16x16_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int sse0, sse1, sse2, sse3, var;
int sum0, sum1, sum2, sum3;
vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
b + 8 * b_stride, b_stride, &sse2, &sum2);
vpx_get8x8var_mmx(a + 8 * a_stride + 8, a_stride,
b + 8 * b_stride + 8, b_stride, &sse3, &sum3);
var = sse0 + sse1 + sse2 + sse3;
*sse = var;
return var;
}
unsigned int vpx_variance16x16_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int sse0, sse1, sse2, sse3, var;
int sum0, sum1, sum2, sum3, avg;
vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
b + 8 * b_stride, b_stride, &sse2, &sum2);
vpx_get8x8var_mmx(a + 8 * a_stride + 8, a_stride,
b + 8 * b_stride + 8, b_stride, &sse3, &sum3);
var = sse0 + sse1 + sse2 + sse3;
avg = sum0 + sum1 + sum2 + sum3;
*sse = var;
return (var - (((unsigned int)avg * avg) >> 8));
}
unsigned int vpx_variance16x8_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int sse0, sse1, var;
int sum0, sum1, avg;
vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
var = sse0 + sse1;
avg = sum0 + sum1;
*sse = var;
return (var - (((unsigned int)avg * avg) >> 7));
}
unsigned int vpx_variance8x16_mmx(const unsigned char *a, int a_stride,
const unsigned char *b, int b_stride,
unsigned int *sse) {
unsigned int sse0, sse1, var;
int sum0, sum1, avg;
vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
b + 8 * b_stride, b_stride, &sse1, &sum1);
var = sse0 + sse1;
avg = sum0 + sum1;
*sse = var;
return (var - (((unsigned int)avg * avg) >> 7));
}
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