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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_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);
}
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