ref: 7f8684437f9b26f2ec38306f2e04bb070d06356b
dir: /vp9/encoder/vp9_sad.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 <stdlib.h>
#include "./vp9_rtcd.h"
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vp9/encoder/vp9_variance.h"
static INLINE unsigned int sad(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
int width, int height) {
int y, x;
unsigned int sad = 0;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++)
sad += abs(a[x] - b[x]);
a += a_stride;
b += b_stride;
}
return sad;
}
#define sadMxN(m, n) \
unsigned int vp9_sad##m##x##n##_c(const uint8_t *src, int src_stride, \
const uint8_t *ref, int ref_stride, \
unsigned int max_sad) { \
return sad(src, src_stride, ref, ref_stride, m, n); \
} \
unsigned int vp9_sad##m##x##n##_avg_c(const uint8_t *src, int src_stride, \
const uint8_t *ref, int ref_stride, \
const uint8_t *second_pred, \
unsigned int max_sad) { \
uint8_t comp_pred[m * n]; \
vp9_comp_avg_pred(comp_pred, second_pred, m, n, ref, ref_stride); \
return sad(src, src_stride, comp_pred, m, m, n); \
}
#define sadMxNxK(m, n, k) \
void vp9_sad##m##x##n##x##k##_c(const uint8_t *src, int src_stride, \
const uint8_t *ref, int ref_stride, \
unsigned int *sads) { \
int i; \
for (i = 0; i < k; ++i) \
sads[i] = vp9_sad##m##x##n##_c(src, src_stride, &ref[i], ref_stride, \
0x7fffffff); \
}
#define sadMxNx4D(m, n) \
void vp9_sad##m##x##n##x4d_c(const uint8_t *src, int src_stride, \
const uint8_t *const refs[], int ref_stride, \
unsigned int *sads) { \
int i; \
for (i = 0; i < 4; ++i) \
sads[i] = vp9_sad##m##x##n##_c(src, src_stride, refs[i], ref_stride, \
0x7fffffff); \
}
// 64x64
sadMxN(64, 64)
sadMxNxK(64, 64, 3)
sadMxNxK(64, 64, 8)
sadMxNx4D(64, 64)
// 64x32
sadMxN(64, 32)
sadMxNx4D(64, 32)
// 32x64
sadMxN(32, 64)
sadMxNx4D(32, 64)
// 32x32
sadMxN(32, 32)
sadMxNxK(32, 32, 3)
sadMxNxK(32, 32, 8)
sadMxNx4D(32, 32)
// 32x16
sadMxN(32, 16)
sadMxNx4D(32, 16)
// 16x32
sadMxN(16, 32)
sadMxNx4D(16, 32)
// 16x16
sadMxN(16, 16)
sadMxNxK(16, 16, 3)
sadMxNxK(16, 16, 8)
sadMxNx4D(16, 16)
// 16x8
sadMxN(16, 8)
sadMxNxK(16, 8, 3)
sadMxNxK(16, 8, 8)
sadMxNx4D(16, 8)
// 8x16
sadMxN(8, 16)
sadMxNxK(8, 16, 3)
sadMxNxK(8, 16, 8)
sadMxNx4D(8, 16)
// 8x8
sadMxN(8, 8)
sadMxNxK(8, 8, 3)
sadMxNxK(8, 8, 8)
sadMxNx4D(8, 8)
// 8x4
sadMxN(8, 4)
sadMxNxK(8, 4, 8)
sadMxNx4D(8, 4)
// 4x8
sadMxN(4, 8)
sadMxNxK(4, 8, 8)
sadMxNx4D(4, 8)
// 4x4
sadMxN(4, 4)
sadMxNxK(4, 4, 3)
sadMxNxK(4, 4, 8)
sadMxNx4D(4, 4)