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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"
typedef unsigned int (*variance_fn_t) (const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse, int *sum);
unsigned int vp9_get4x4var_mmx(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse, int *sum);
unsigned int vp9_get8x8var_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse, int *sum);
unsigned int vp9_get16x16var_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse, int *sum);
static void variance_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
int w, int h, unsigned int *sse, int *sum,
variance_fn_t var_fn, int block_size) {
int i, j;
*sse = 0;
*sum = 0;
for (i = 0; i < h; i += block_size) {
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 vp9_variance4x4_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 4, 4,
sse, &sum, vp9_get4x4var_mmx, 4);
return *sse - (((unsigned int)sum * sum) >> 4);
}
unsigned int vp9_variance8x4_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 8, 4,
sse, &sum, vp9_get4x4var_mmx, 4);
return *sse - (((unsigned int)sum * sum) >> 5);
}
unsigned int vp9_variance4x8_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 4, 8,
sse, &sum, vp9_get4x4var_mmx, 4);
return *sse - (((unsigned int)sum * sum) >> 5);
}
unsigned int vp9_variance8x8_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 8, 8,
sse, &sum, vp9_get8x8var_sse2, 8);
return *sse - (((unsigned int)sum * sum) >> 6);
}
unsigned int vp9_variance16x8_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 16, 8,
sse, &sum, vp9_get8x8var_sse2, 8);
return *sse - (((unsigned int)sum * sum) >> 7);
}
unsigned int vp9_variance8x16_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 8, 16,
sse, &sum, vp9_get8x8var_sse2, 8);
return *sse - (((unsigned int)sum * sum) >> 7);
}
unsigned int vp9_variance16x16_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 16, 16,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((unsigned int)sum * sum) >> 8);
}
unsigned int vp9_mse16x16_sse2(const unsigned char *src, int src_stride,
const unsigned char *ref, int ref_stride,
unsigned int *sse) {
int sum;
vp9_get16x16var_sse2(src, src_stride, ref, ref_stride, sse, &sum);
return *sse;
}
unsigned int vp9_variance32x32_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 32, 32,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 10);
}
unsigned int vp9_variance32x16_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 32, 16,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 9);
}
unsigned int vp9_variance16x32_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 16, 32,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 9);
}
unsigned int vp9_variance64x64_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 64, 64,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 12);
}
unsigned int vp9_variance64x32_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 64, 32,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 11);
}
unsigned int vp9_variance32x64_sse2(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride,
unsigned int *sse) {
int sum;
variance_sse2(src, src_stride, ref, ref_stride, 32, 64,
sse, &sum, vp9_get16x16var_sse2, 16);
return *sse - (((int64_t)sum * sum) >> 11);
}
#define DECL(w, opt) \
int vp9_sub_pixel_variance##w##xh_##opt(const uint8_t *src, \
ptrdiff_t src_stride, \
int x_offset, int y_offset, \
const uint8_t *dst, \
ptrdiff_t dst_stride, \
int height, unsigned int *sse)
#define DECLS(opt1, opt2) \
DECL(4, opt2); \
DECL(8, opt1); \
DECL(16, opt1)
DECLS(sse2, sse);
DECLS(ssse3, ssse3);
#undef DECLS
#undef DECL
#define FN(w, h, wf, wlog2, hlog2, opt, cast) \
unsigned int vp9_sub_pixel_variance##w##x##h##_##opt(const uint8_t *src, \
int src_stride, \
int x_offset, \
int y_offset, \
const uint8_t *dst, \
int dst_stride, \
unsigned int *sse_ptr) { \
unsigned int sse; \
int se = vp9_sub_pixel_variance##wf##xh_##opt(src, src_stride, x_offset, \
y_offset, dst, dst_stride, \
h, &sse); \
if (w > wf) { \
unsigned int sse2; \
int se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 16, src_stride, \
x_offset, y_offset, \
dst + 16, dst_stride, \
h, &sse2); \
se += se2; \
sse += sse2; \
if (w > wf * 2) { \
se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 32, src_stride, \
x_offset, y_offset, \
dst + 32, dst_stride, \
h, &sse2); \
se += se2; \
sse += sse2; \
se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 48, src_stride, \
x_offset, y_offset, \
dst + 48, dst_stride, \
h, &sse2); \
se += se2; \
sse += sse2; \
} \
} \
*sse_ptr = sse; \
return sse - ((cast se * se) >> (wlog2 + hlog2)); \
}
#define FNS(opt1, opt2) \
FN(64, 64, 16, 6, 6, opt1, (int64_t)); \
FN(64, 32, 16, 6, 5, opt1, (int64_t)); \
FN(32, 64, 16, 5, 6, opt1, (int64_t)); \
FN(32, 32, 16, 5, 5, opt1, (int64_t)); \
FN(32, 16, 16, 5, 4, opt1, (int64_t)); \
FN(16, 32, 16, 4, 5, opt1, (int64_t)); \
FN(16, 16, 16, 4, 4, opt1, (unsigned int)); \
FN(16, 8, 16, 4, 3, opt1, (unsigned int)); \
FN(8, 16, 8, 3, 4, opt1, (unsigned int)); \
FN(8, 8, 8, 3, 3, opt1, (unsigned int)); \
FN(8, 4, 8, 3, 2, opt1, (unsigned int)); \
FN(4, 8, 4, 2, 3, opt2, (unsigned int)); \
FN(4, 4, 4, 2, 2, opt2, (unsigned int))
FNS(sse2, sse);
FNS(ssse3, ssse3);
#undef FNS
#undef FN
#define DECL(w, opt) \
int vp9_sub_pixel_avg_variance##w##xh_##opt(const uint8_t *src, \
ptrdiff_t src_stride, \
int x_offset, int y_offset, \
const uint8_t *dst, \
ptrdiff_t dst_stride, \
const uint8_t *sec, \
ptrdiff_t sec_stride, \
int height, unsigned int *sse)
#define DECLS(opt1, opt2) \
DECL(4, opt2); \
DECL(8, opt1); \
DECL(16, opt1)
DECLS(sse2, sse);
DECLS(ssse3, ssse3);
#undef DECL
#undef DECLS
#define FN(w, h, wf, wlog2, hlog2, opt, cast) \
unsigned int vp9_sub_pixel_avg_variance##w##x##h##_##opt(const uint8_t *src, \
int src_stride, \
int x_offset, \
int y_offset, \
const uint8_t *dst, \
int dst_stride, \
unsigned int *sseptr, \
const uint8_t *sec) { \
unsigned int sse; \
int se = vp9_sub_pixel_avg_variance##wf##xh_##opt(src, src_stride, x_offset, \
y_offset, dst, dst_stride, \
sec, w, h, &sse); \
if (w > wf) { \
unsigned int sse2; \
int se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 16, src_stride, \
x_offset, y_offset, \
dst + 16, dst_stride, \
sec + 16, w, h, &sse2); \
se += se2; \
sse += sse2; \
if (w > wf * 2) { \
se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 32, src_stride, \
x_offset, y_offset, \
dst + 32, dst_stride, \
sec + 32, w, h, &sse2); \
se += se2; \
sse += sse2; \
se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 48, src_stride, \
x_offset, y_offset, \
dst + 48, dst_stride, \
sec + 48, w, h, &sse2); \
se += se2; \
sse += sse2; \
} \
} \
*sseptr = sse; \
return sse - ((cast se * se) >> (wlog2 + hlog2)); \
}
#define FNS(opt1, opt2) \
FN(64, 64, 16, 6, 6, opt1, (int64_t)); \
FN(64, 32, 16, 6, 5, opt1, (int64_t)); \
FN(32, 64, 16, 5, 6, opt1, (int64_t)); \
FN(32, 32, 16, 5, 5, opt1, (int64_t)); \
FN(32, 16, 16, 5, 4, opt1, (int64_t)); \
FN(16, 32, 16, 4, 5, opt1, (int64_t)); \
FN(16, 16, 16, 4, 4, opt1, (unsigned int)); \
FN(16, 8, 16, 4, 3, opt1, (unsigned int)); \
FN(8, 16, 8, 3, 4, opt1, (unsigned int)); \
FN(8, 8, 8, 3, 3, opt1, (unsigned int)); \
FN(8, 4, 8, 3, 2, opt1, (unsigned int)); \
FN(4, 8, 4, 2, 3, opt2, (unsigned int)); \
FN(4, 4, 4, 2, 2, opt2, (unsigned int))
FNS(sse2, sse);
FNS(ssse3, ssse3);
#undef FNS
#undef FN
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