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/*
* Copyright (c) 2012 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"
typedef void (*get_var_avx2)(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse, int *sum);
void vpx_get32x32var_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse, int *sum);
static void variance_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
int w, int h, unsigned int *sse, int *sum,
get_var_avx2 var_fn, int block_size) {
int i, j;
*sse = 0;
*sum = 0;
for (i = 0; i < h; i += 16) {
for (j = 0; j < w; j += block_size) {
unsigned int sse0;
int sum0;
var_fn(&src[src_stride * i + j], src_stride,
&ref[ref_stride * i + j], ref_stride, &sse0, &sum0);
*sse += sse0;
*sum += sum0;
}
}
}
unsigned int vpx_variance16x16_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_avx2(src, src_stride, ref, ref_stride, 16, 16,
sse, &sum, vpx_get16x16var_avx2, 16);
return *sse - (((unsigned int)sum * sum) >> 8);
}
unsigned int vpx_mse16x16_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
vpx_get16x16var_avx2(src, src_stride, ref, ref_stride, sse, &sum);
return *sse;
}
unsigned int vpx_variance32x16_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_avx2(src, src_stride, ref, ref_stride, 32, 16,
sse, &sum, vpx_get32x32var_avx2, 32);
return *sse - (((int64_t)sum * sum) >> 9);
}
unsigned int vpx_variance32x32_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_avx2(src, src_stride, ref, ref_stride, 32, 32,
sse, &sum, vpx_get32x32var_avx2, 32);
return *sse - (((int64_t)sum * sum) >> 10);
}
unsigned int vpx_variance64x64_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_avx2(src, src_stride, ref, ref_stride, 64, 64,
sse, &sum, vpx_get32x32var_avx2, 32);
return *sse - (((int64_t)sum * sum) >> 12);
}
unsigned int vpx_variance64x32_avx2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_avx2(src, src_stride, ref, ref_stride, 64, 32,
sse, &sum, vpx_get32x32var_avx2, 32);
return *sse - (((int64_t)sum * sum) >> 11);
}
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