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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <assert.h>
#include <emmintrin.h>
#include <stddef.h>
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
typedef void (*SubtractWxHFuncType)(int16_t *diff, ptrdiff_t diff_stride,
const uint16_t *src, ptrdiff_t src_stride,
const uint16_t *pred,
ptrdiff_t pred_stride);
static void subtract_4x4(int16_t *diff, ptrdiff_t diff_stride,
const uint16_t *src, ptrdiff_t src_stride,
const uint16_t *pred, ptrdiff_t pred_stride) {
__m128i u0, u1, u2, u3;
__m128i v0, v1, v2, v3;
__m128i x0, x1, x2, x3;
int64_t *store_diff = (int64_t *)(diff + 0 * diff_stride);
u0 = _mm_loadl_epi64((__m128i const *)(src + 0 * src_stride));
u1 = _mm_loadl_epi64((__m128i const *)(src + 1 * src_stride));
u2 = _mm_loadl_epi64((__m128i const *)(src + 2 * src_stride));
u3 = _mm_loadl_epi64((__m128i const *)(src + 3 * src_stride));
v0 = _mm_loadl_epi64((__m128i const *)(pred + 0 * pred_stride));
v1 = _mm_loadl_epi64((__m128i const *)(pred + 1 * pred_stride));
v2 = _mm_loadl_epi64((__m128i const *)(pred + 2 * pred_stride));
v3 = _mm_loadl_epi64((__m128i const *)(pred + 3 * pred_stride));
x0 = _mm_sub_epi16(u0, v0);
x1 = _mm_sub_epi16(u1, v1);
x2 = _mm_sub_epi16(u2, v2);
x3 = _mm_sub_epi16(u3, v3);
_mm_storel_epi64((__m128i *)store_diff, x0);
store_diff = (int64_t *)(diff + 1 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x1);
store_diff = (int64_t *)(diff + 2 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x2);
store_diff = (int64_t *)(diff + 3 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x3);
}
static void subtract_4x8(int16_t *diff, ptrdiff_t diff_stride,
const uint16_t *src, ptrdiff_t src_stride,
const uint16_t *pred, ptrdiff_t pred_stride) {
__m128i u0, u1, u2, u3, u4, u5, u6, u7;
__m128i v0, v1, v2, v3, v4, v5, v6, v7;
__m128i x0, x1, x2, x3, x4, x5, x6, x7;
int64_t *store_diff = (int64_t *)(diff + 0 * diff_stride);
u0 = _mm_loadl_epi64((__m128i const *)(src + 0 * src_stride));
u1 = _mm_loadl_epi64((__m128i const *)(src + 1 * src_stride));
u2 = _mm_loadl_epi64((__m128i const *)(src + 2 * src_stride));
u3 = _mm_loadl_epi64((__m128i const *)(src + 3 * src_stride));
u4 = _mm_loadl_epi64((__m128i const *)(src + 4 * src_stride));
u5 = _mm_loadl_epi64((__m128i const *)(src + 5 * src_stride));
u6 = _mm_loadl_epi64((__m128i const *)(src + 6 * src_stride));
u7 = _mm_loadl_epi64((__m128i const *)(src + 7 * src_stride));
v0 = _mm_loadl_epi64((__m128i const *)(pred + 0 * pred_stride));
v1 = _mm_loadl_epi64((__m128i const *)(pred + 1 * pred_stride));
v2 = _mm_loadl_epi64((__m128i const *)(pred + 2 * pred_stride));
v3 = _mm_loadl_epi64((__m128i const *)(pred + 3 * pred_stride));
v4 = _mm_loadl_epi64((__m128i const *)(pred + 4 * pred_stride));
v5 = _mm_loadl_epi64((__m128i const *)(pred + 5 * pred_stride));
v6 = _mm_loadl_epi64((__m128i const *)(pred + 6 * pred_stride));
v7 = _mm_loadl_epi64((__m128i const *)(pred + 7 * pred_stride));
x0 = _mm_sub_epi16(u0, v0);
x1 = _mm_sub_epi16(u1, v1);
x2 = _mm_sub_epi16(u2, v2);
x3 = _mm_sub_epi16(u3, v3);
x4 = _mm_sub_epi16(u4, v4);
x5 = _mm_sub_epi16(u5, v5);
x6 = _mm_sub_epi16(u6, v6);
x7 = _mm_sub_epi16(u7, v7);
_mm_storel_epi64((__m128i *)store_diff, x0);
store_diff = (int64_t *)(diff + 1 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x1);
store_diff = (int64_t *)(diff + 2 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x2);
store_diff = (int64_t *)(diff + 3 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x3);
store_diff = (int64_t *)(diff + 4 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x4);
store_diff = (int64_t *)(diff + 5 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x5);
store_diff = (int64_t *)(diff + 6 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x6);
store_diff = (int64_t *)(diff + 7 * diff_stride);
_mm_storel_epi64((__m128i *)store_diff, x7);
}
static void subtract_8x4(int16_t *diff, ptrdiff_t diff_stride,
const uint16_t *src, ptrdiff_t src_stride,
const uint16_t *pred, ptrdiff_t pred_stride) {
__m128i u0, u1, u2, u3;
__m128i v0, v1, v2, v3;
__m128i x0, x1, x2, x3;
u0 = _mm_loadu_si128((__m128i const *)(src + 0 * src_stride));
u1 = _mm_loadu_si128((__m128i const *)(src + 1 * src_stride));
u2 = _mm_loadu_si128((__m128i const *)(src + 2 * src_stride));
u3 = _mm_loadu_si128((__m128i const *)(src + 3 * src_stride));
v0 = _mm_loadu_si128((__m128i const *)(pred + 0 * pred_stride));
v1 = _mm_loadu_si128((__m128i const *)(pred + 1 * pred_stride));
v2 = _mm_loadu_si128((__m128i const *)(pred + 2 * pred_stride));
v3 = _mm_loadu_si128((__m128i const *)(pred + 3 * pred_stride));
x0 = _mm_sub_epi16(u0, v0);
x1 = _mm_sub_epi16(u1, v1);
x2 = _mm_sub_epi16(u2, v2);
x3 = _mm_sub_epi16(u3, v3);
_mm_storeu_si128((__m128i *)(diff + 0 * diff_stride), x0);
_mm_storeu_si128((__m128i *)(diff + 1 * diff_stride), x1);
_mm_storeu_si128((__m128i *)(diff + 2 * diff_stride), x2);
_mm_storeu_si128((__m128i *)(diff + 3 * diff_stride), x3);
}
static void subtract_8x8(int16_t *diff, ptrdiff_t diff_stride,
const uint16_t *src, ptrdiff_t src_stride,
const uint16_t *pred, ptrdiff_t pred_stride) {
__m128i u0, u1, u2, u3, u4, u5, u6, u7;
__m128i v0, v1, v2, v3, v4, v5, v6, v7;
__m128i x0, x1, x2, x3, x4, x5, x6, x7;
u0 = _mm_loadu_si128((__m128i const *)(src + 0 * src_stride));
u1 = _mm_loadu_si128((__m128i const *)(src + 1 * src_stride));
u2 = _mm_loadu_si128((__m128i const *)(src + 2 * src_stride));
u3 = _mm_loadu_si128((__m128i const *)(src + 3 * src_stride));
u4 = _mm_loadu_si128((__m128i const *)(src + 4 * src_stride));
u5 = _mm_loadu_si128((__m128i const *)(src + 5 * src_stride));
u6 = _mm_loadu_si128((__m128i const *)(src + 6 * src_stride));
u7 = _mm_loadu_si128((__m128i const *)(src + 7 * src_stride));
v0 = _mm_loadu_si128((__m128i const *)(pred + 0 * pred_stride));
v1 = _mm_loadu_si128((__m128i const *)(pred + 1 * pred_stride));
v2 = _mm_loadu_si128((__m128i const *)(pred + 2 * pred_stride));
v3 = _mm_loadu_si128((__m128i const *)(pred + 3 * pred_stride));
v4 = _mm_loadu_si128((__m128i const *)(pred + 4 * pred_stride));
v5 = _mm_loadu_si128((__m128i const *)(pred + 5 * pred_stride));
v6 = _mm_loadu_si128((__m128i const *)(pred + 6 * pred_stride));
v7 = _mm_loadu_si128((__m128i const *)(pred + 7 * pred_stride));
x0 = _mm_sub_epi16(u0, v0);
x1 = _mm_sub_epi16(u1, v1);
x2 = _mm_sub_epi16(u2, v2);
x3 = _mm_sub_epi16(u3, v3);
x4 = _mm_sub_epi16(u4, v4);
x5 = _mm_sub_epi16(u5, v5);
x6 = _mm_sub_epi16(u6, v6);
x7 = _mm_sub_epi16(u7, v7);
_mm_storeu_si128((__m128i *)(diff + 0 * diff_stride), x0);
_mm_storeu_si128((__m128i *)(diff + 1 * diff_stride), x1);
_mm_storeu_si128((__m128i *)(diff + 2 * diff_stride), x2);
_mm_storeu_si128((__m128i *)(diff + 3 * diff_stride), x3);
_mm_storeu_si128((__m128i *)(diff + 4 * diff_stride), x4);
_mm_storeu_si128((__m128i *)(diff + 5 * diff_stride), x5);
_mm_storeu_si128((__m128i *)(diff + 6 * diff_stride), x6);
_mm_storeu_si128((__m128i *)(diff + 7 * diff_stride), x7);
}
#define STACK_V(h, fun) \
do { \
fun(diff, diff_stride, src, src_stride, pred, pred_stride); \
fun(diff + diff_stride * h, diff_stride, src + src_stride * h, src_stride, \
pred + pred_stride * h, pred_stride); \
} while (0)
#define STACK_H(w, fun) \
do { \
fun(diff, diff_stride, src, src_stride, pred, pred_stride); \
fun(diff + w, diff_stride, src + w, src_stride, pred + w, pred_stride); \
} while (0)
#define SUBTRACT_FUN(size) \
static void subtract_##size(int16_t *diff, ptrdiff_t diff_stride, \
const uint16_t *src, ptrdiff_t src_stride, \
const uint16_t *pred, ptrdiff_t pred_stride)
SUBTRACT_FUN(8x16) { STACK_V(8, subtract_8x8); }
SUBTRACT_FUN(16x8) { STACK_H(8, subtract_8x8); }
SUBTRACT_FUN(16x16) { STACK_V(8, subtract_16x8); }
SUBTRACT_FUN(16x32) { STACK_V(16, subtract_16x16); }
SUBTRACT_FUN(32x16) { STACK_H(16, subtract_16x16); }
SUBTRACT_FUN(32x32) { STACK_V(16, subtract_32x16); }
SUBTRACT_FUN(32x64) { STACK_V(32, subtract_32x32); }
SUBTRACT_FUN(64x32) { STACK_H(32, subtract_32x32); }
SUBTRACT_FUN(64x64) { STACK_V(32, subtract_64x32); }
SUBTRACT_FUN(64x128) { STACK_V(64, subtract_64x64); }
SUBTRACT_FUN(128x64) { STACK_H(64, subtract_64x64); }
SUBTRACT_FUN(128x128) { STACK_V(64, subtract_128x64); }
SUBTRACT_FUN(4x16) { STACK_V(8, subtract_4x8); }
SUBTRACT_FUN(16x4) { STACK_H(8, subtract_8x4); }
SUBTRACT_FUN(8x32) { STACK_V(16, subtract_8x16); }
SUBTRACT_FUN(32x8) { STACK_H(16, subtract_16x8); }
SUBTRACT_FUN(16x64) { STACK_V(32, subtract_16x32); }
SUBTRACT_FUN(64x16) { STACK_H(32, subtract_32x16); }
static SubtractWxHFuncType getSubtractFunc(int rows, int cols) {
if (rows == 4) {
if (cols == 4) return subtract_4x4;
if (cols == 8) return subtract_8x4;
if (cols == 16) return subtract_16x4;
}
if (rows == 8) {
if (cols == 4) return subtract_4x8;
if (cols == 8) return subtract_8x8;
if (cols == 16) return subtract_16x8;
if (cols == 32) return subtract_32x8;
}
if (rows == 16) {
if (cols == 4) return subtract_4x16;
if (cols == 8) return subtract_8x16;
if (cols == 16) return subtract_16x16;
if (cols == 32) return subtract_32x16;
if (cols == 64) return subtract_64x16;
}
if (rows == 32) {
if (cols == 8) return subtract_8x32;
if (cols == 16) return subtract_16x32;
if (cols == 32) return subtract_32x32;
if (cols == 64) return subtract_64x32;
}
if (rows == 64) {
if (cols == 16) return subtract_16x64;
if (cols == 32) return subtract_32x64;
if (cols == 64) return subtract_64x64;
if (cols == 128) return subtract_128x64;
}
if (rows == 128) {
if (cols == 64) return subtract_64x128;
if (cols == 128) return subtract_128x128;
}
assert(0);
return NULL;
}
void aom_highbd_subtract_block_sse2(int rows, int cols, int16_t *diff,
ptrdiff_t diff_stride, const uint8_t *src8,
ptrdiff_t src_stride, const uint8_t *pred8,
ptrdiff_t pred_stride) {
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
SubtractWxHFuncType func;
func = getSubtractFunc(rows, cols);
func(diff, diff_stride, src, src_stride, pred, pred_stride);
}
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