/*
* 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 <smmintrin.h>
#include "config/av1_rtcd.h"
#include "av1/common/warped_motion.h"
static const uint8_t warp_highbd_arrange_bytes[16 ] = { 0 , 2 , 4 , 6 , 8 , 10 ,
12 , 14 , 1 , 3 , 5 , 7 ,
9 , 11 , 13 , 15 };
static const uint8_t highbd_shuffle_alpha0_mask0[16 ] = {
0 , 1 , 2 , 3 , 0 , 1 , 2 , 3 , 0 , 1 , 2 , 3 , 0 , 1 , 2 , 3
};
static const uint8_t highbd_shuffle_alpha0_mask1[16 ] = {
4 , 5 , 6 , 7 , 4 , 5 , 6 , 7 , 4 , 5 , 6 , 7 , 4 , 5 , 6 , 7
};
static const uint8_t highbd_shuffle_alpha0_mask2[16 ] = { 8 , 9 , 10 , 11 , 8 , 9 ,
10 , 11 , 8 , 9 , 10 , 11 ,
8 , 9 , 10 , 11 };
static const uint8_t highbd_shuffle_alpha0_mask3[16 ] = { 12 , 13 , 14 , 15 , 12 , 13 ,
14 , 15 , 12 , 13 , 14 , 15 ,
12 , 13 , 14 , 15 };
static inline void highbd_prepare_horizontal_filter_coeff(int alpha, int sx,
__m128i *coeff) {
// Filter even-index pixels
const __m128i tmp_0 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_2 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_4 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_6 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS)));
// coeffs 0 1 0 1 2 3 2 3 for pixels 0, 2
const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2);
// coeffs 0 1 0 1 2 3 2 3 for pixels 4, 6
const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6);
// coeffs 4 5 4 5 6 7 6 7 for pixels 0, 2
const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2);
// coeffs 4 5 4 5 6 7 6 7 for pixels 4, 6
const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6);
// coeffs 0 1 0 1 0 1 0 1 for pixels 0, 2, 4, 6
coeff[0 ] = _mm_unpacklo_epi64(tmp_8, tmp_10);
// coeffs 2 3 2 3 2 3 2 3 for pixels 0, 2, 4, 6
coeff[2 ] = _mm_unpackhi_epi64(tmp_8, tmp_10);
// coeffs 4 5 4 5 4 5 4 5 for pixels 0, 2, 4, 6
coeff[4 ] = _mm_unpacklo_epi64(tmp_12, tmp_14);
// coeffs 6 7 6 7 6 7 6 7 for pixels 0, 2, 4, 6
coeff[6 ] = _mm_unpackhi_epi64(tmp_12, tmp_14);
// Filter odd-index pixels
const __m128i tmp_1 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_3 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_5 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_7 =
_mm_loadu_si128((__m128i *)(av1_warped_filter +
((sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3);
const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7);
const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3);
const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7);
coeff[1 ] = _mm_unpacklo_epi64(tmp_9, tmp_11);
coeff[3 ] = _mm_unpackhi_epi64(tmp_9, tmp_11);
coeff[5 ] = _mm_unpacklo_epi64(tmp_13, tmp_15);
coeff[7 ] = _mm_unpackhi_epi64(tmp_13, tmp_15);
}
static inline void highbd_prepare_horizontal_filter_coeff_alpha0(
int sx, __m128i *coeff) {
// Filter coeff
const __m128i tmp_0 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter + (sx >> WARPEDDIFF_PREC_BITS)));
coeff[0 ] = _mm_shuffle_epi8(
tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask0));
coeff[2 ] = _mm_shuffle_epi8(
tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask1));
coeff[4 ] = _mm_shuffle_epi8(
tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask2));
coeff[6 ] = _mm_shuffle_epi8(
tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask3));
coeff[1 ] = coeff[0 ];
coeff[3 ] = coeff[2 ];
coeff[5 ] = coeff[4 ];
coeff[7 ] = coeff[6 ];
}
static inline void highbd_filter_src_pixels(
const __m128i *src, const __m128i *src2, __m128i *tmp, __m128i *coeff,
const int offset_bits_horiz, const int reduce_bits_horiz, int k) {
const __m128i src_1 = *src;
const __m128i src2_1 = *src2;
const __m128i round_const = _mm_set1_epi32((1 << offset_bits_horiz) +
((1 << reduce_bits_horiz) >> 1 ));
const __m128i res_0 = _mm_madd_epi16(src_1, coeff[0 ]);
const __m128i res_2 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 4 ), coeff[2 ]);
const __m128i res_4 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 8 ), coeff[4 ]);
const __m128i res_6 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 12 ), coeff[6 ]);
__m128i res_even =
_mm_add_epi32(_mm_add_epi32(res_0, res_4), _mm_add_epi32(res_2, res_6));
res_even = _mm_sra_epi32(_mm_add_epi32(res_even, round_const),
_mm_cvtsi32_si128(reduce_bits_horiz));
const __m128i res_1 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 2 ), coeff[1 ]);
const __m128i res_3 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 6 ), coeff[3 ]);
const __m128i res_5 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 10 ), coeff[5 ]);
const __m128i res_7 =
_mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 14 ), coeff[7 ]);
__m128i res_odd =
_mm_add_epi32(_mm_add_epi32(res_1, res_5), _mm_add_epi32(res_3, res_7));
res_odd = _mm_sra_epi32(_mm_add_epi32(res_odd, round_const),
_mm_cvtsi32_si128(reduce_bits_horiz));
// Combine results into one register.
// We store the columns in the order 0, 2, 4, 6, 1, 3, 5, 7
// as this order helps with the vertical filter.
tmp[k + 7 ] = _mm_packs_epi32(res_even, res_odd);
}
static inline void highbd_horiz_filter(const __m128i *src, const __m128i *src2,
__m128i *tmp, int sx, int alpha, int k,
const int offset_bits_horiz,
const int reduce_bits_horiz) {
__m128i coeff[8 ];
highbd_prepare_horizontal_filter_coeff(alpha, sx, coeff);
highbd_filter_src_pixels(src, src2, tmp, coeff, offset_bits_horiz,
reduce_bits_horiz, k);
}
static inline void highbd_warp_horizontal_filter_alpha0_beta0(
const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4,
int32_t sx4, int alpha, int beta, int p_height, int height, int i,
const int offset_bits_horiz, const int reduce_bits_horiz) {
(void )beta;
(void )alpha;
int k;
__m128i coeff[8 ];
highbd_prepare_horizontal_filter_coeff_alpha0(sx4, coeff);
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
// Load source pixels
const __m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7 ));
const __m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1 ));
highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz,
reduce_bits_horiz, k);
}
}
static inline void highbd_warp_horizontal_filter_alpha0(
const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4,
int32_t sx4, int alpha, int beta, int p_height, int height, int i,
const int offset_bits_horiz, const int reduce_bits_horiz) {
(void )alpha;
int k;
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
int sx = sx4 + beta * (k + 4 );
// Load source pixels
const __m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7 ));
const __m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1 ));
__m128i coeff[8 ];
highbd_prepare_horizontal_filter_coeff_alpha0(sx, coeff);
highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz,
reduce_bits_horiz, k);
}
}
static inline void highbd_warp_horizontal_filter_beta0(
const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4,
int32_t sx4, int alpha, int beta, int p_height, int height, int i,
const int offset_bits_horiz, const int reduce_bits_horiz) {
(void )beta;
int k;
__m128i coeff[8 ];
highbd_prepare_horizontal_filter_coeff(alpha, sx4, coeff);
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
// Load source pixels
const __m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7 ));
const __m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1 ));
highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz,
reduce_bits_horiz, k);
}
}
static inline void highbd_warp_horizontal_filter(
const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4,
int32_t sx4, int alpha, int beta, int p_height, int height, int i,
const int offset_bits_horiz, const int reduce_bits_horiz) {
int k;
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
int sx = sx4 + beta * (k + 4 );
// Load source pixels
const __m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7 ));
const __m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1 ));
highbd_horiz_filter(&src, &src2, tmp, sx, alpha, k, offset_bits_horiz,
reduce_bits_horiz);
}
}
static inline void highbd_prepare_warp_horizontal_filter(
const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4,
int32_t sx4, int alpha, int beta, int p_height, int height, int i,
const int offset_bits_horiz, const int reduce_bits_horiz) {
if (alpha == 0 && beta == 0 )
highbd_warp_horizontal_filter_alpha0_beta0(
ref, tmp, stride, ix4, iy4, sx4, alpha, beta, p_height, height, i,
offset_bits_horiz, reduce_bits_horiz);
else if (alpha == 0 && beta != 0 )
highbd_warp_horizontal_filter_alpha0(ref, tmp, stride, ix4, iy4, sx4, alpha,
beta, p_height, height, i,
offset_bits_horiz, reduce_bits_horiz);
else if (alpha != 0 && beta == 0 )
highbd_warp_horizontal_filter_beta0(ref, tmp, stride, ix4, iy4, sx4, alpha,
beta, p_height, height, i,
offset_bits_horiz, reduce_bits_horiz);
else
highbd_warp_horizontal_filter(ref, tmp, stride, ix4, iy4, sx4, alpha, beta,
p_height, height, i, offset_bits_horiz,
reduce_bits_horiz);
}
void av1_highbd_warp_affine_sse4_1(const int32_t *mat, const uint16_t *ref,
int width, int height, int stride,
uint16_t *pred, int p_col, int p_row,
int p_width, int p_height, int p_stride,
int subsampling_x, int subsampling_y, int bd,
ConvolveParams *conv_params, int16_t alpha,
int16_t beta, int16_t gamma, int16_t delta) {
__m128i tmp[15 ];
int i, j, k;
const int reduce_bits_horiz = conv_params->round_0;
const int reduce_bits_vert = conv_params->is_compound
? conv_params->round_1
: 2 * FILTER_BITS - reduce_bits_horiz;
const int offset_bits_horiz = bd + FILTER_BITS - 1 ;
assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL));
assert(!(bd == 12 && reduce_bits_horiz < 5 ));
assert(IMPLIES(conv_params->do_average, conv_params->is_compound));
// Check that, even with 12-bit input, the intermediate values will fit
// into an unsigned 16-bit intermediate array.
assert(bd + FILTER_BITS + 2 - conv_params->round_0 <= 16 );
const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz;
const __m128i clip_pixel =
_mm_set1_epi16(bd == 10 ? 1023 : (bd == 12 ? 4095 : 255 ));
const __m128i reduce_bits_vert_shift = _mm_cvtsi32_si128(reduce_bits_vert);
const __m128i reduce_bits_vert_const =
_mm_set1_epi32(((1 << reduce_bits_vert) >> 1 ));
const __m128i res_add_const = _mm_set1_epi32(1 << offset_bits_vert);
const int round_bits =
2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1;
const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0;
const __m128i res_sub_const =
_mm_set1_epi32(-(1 << (offset_bits - conv_params->round_1)) -
(1 << (offset_bits - conv_params->round_1 - 1 )));
__m128i round_bits_shift = _mm_cvtsi32_si128(round_bits);
__m128i round_bits_const = _mm_set1_epi32(((1 << round_bits) >> 1 ));
const int w0 = conv_params->fwd_offset;
const int w1 = conv_params->bck_offset;
const __m128i wt0 = _mm_set1_epi32(w0);
const __m128i wt1 = _mm_set1_epi32(w1);
/* Note: For this code to work, the left/right frame borders need to be
extended by at least 13 pixels each . By the time we get here , other
code will have set up this border , but we allow an explicit check
for debugging purposes .
*/
/*for (i = 0; i < height; ++i) {
for ( j = 0 ; j < 13 ; + + j ) {
assert ( ref [ i * stride - 13 + j ] = = ref [ i * stride ] ) ;
assert ( ref [ i * stride + width + j ] = = ref [ i * stride + ( width - 1 ) ] ) ;
}
}*/
for (i = 0 ; i < p_height; i += 8 ) {
for (j = 0 ; j < p_width; j += 8 ) {
const int32_t src_x = (p_col + j + 4 ) << subsampling_x;
const int32_t src_y = (p_row + i + 4 ) << subsampling_y;
const int64_t dst_x =
(int64_t)mat[2 ] * src_x + (int64_t)mat[3 ] * src_y + (int64_t)mat[0 ];
const int64_t dst_y =
(int64_t)mat[4 ] * src_x + (int64_t)mat[5 ] * src_y + (int64_t)mat[1 ];
const int64_t x4 = dst_x >> subsampling_x;
const int64_t y4 = dst_y >> subsampling_y;
int32_t ix4 = (int32_t)(x4 >> WARPEDMODEL_PREC_BITS);
int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1 );
int32_t iy4 = (int32_t)(y4 >> WARPEDMODEL_PREC_BITS);
int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1 );
// Add in all the constant terms, including rounding and offset
sx4 += alpha * (-4 ) + beta * (-4 ) + (1 << (WARPEDDIFF_PREC_BITS - 1 )) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
sy4 += gamma * (-4 ) + delta * (-4 ) + (1 << (WARPEDDIFF_PREC_BITS - 1 )) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
sx4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1 );
sy4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1 );
// Horizontal filter
// If the block is aligned such that, after clamping, every sample
// would be taken from the leftmost/rightmost column, then we can
// skip the expensive horizontal filter.
if (ix4 <= -7 ) {
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
tmp[k + 7 ] = _mm_set1_epi16(
(1 << (bd + FILTER_BITS - reduce_bits_horiz - 1 )) +
ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz)));
}
} else if (ix4 >= width + 6 ) {
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
tmp[k + 7 ] =
_mm_set1_epi16((1 << (bd + FILTER_BITS - reduce_bits_horiz - 1 )) +
ref[iy * stride + (width - 1 )] *
(1 << (FILTER_BITS - reduce_bits_horiz)));
}
} else if (((ix4 - 7 ) < 0 ) || ((ix4 + 9 ) > width)) {
const int out_of_boundary_left = -(ix4 - 6 );
const int out_of_boundary_right = (ix4 + 8 ) - width;
for (k = -7 ; k < AOMMIN(8 , p_height - i); ++k) {
int iy = iy4 + k;
if (iy < 0 )
iy = 0 ;
else if (iy > height - 1 )
iy = height - 1 ;
int sx = sx4 + beta * (k + 4 );
// Load source pixels
const __m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7 ));
const __m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1 ));
const __m128i src_01 = _mm_shuffle_epi8(
src, _mm_loadu_si128((__m128i *)warp_highbd_arrange_bytes));
const __m128i src2_01 = _mm_shuffle_epi8(
src2, _mm_loadu_si128((__m128i *)warp_highbd_arrange_bytes));
__m128i src_lo = _mm_unpacklo_epi64(src_01, src2_01);
__m128i src_hi = _mm_unpackhi_epi64(src_01, src2_01);
if (out_of_boundary_left >= 0 ) {
const __m128i shuffle_reg_left =
_mm_loadu_si128((__m128i *)warp_pad_left[out_of_boundary_left]);
src_lo = _mm_shuffle_epi8(src_lo, shuffle_reg_left);
src_hi = _mm_shuffle_epi8(src_hi, shuffle_reg_left);
}
if (out_of_boundary_right >= 0 ) {
const __m128i shuffle_reg_right = _mm_loadu_si128(
(__m128i *)warp_pad_right[out_of_boundary_right]);
src_lo = _mm_shuffle_epi8(src_lo, shuffle_reg_right);
src_hi = _mm_shuffle_epi8(src_hi, shuffle_reg_right);
}
const __m128i src_padded = _mm_unpacklo_epi8(src_lo, src_hi);
const __m128i src2_padded = _mm_unpackhi_epi8(src_lo, src_hi);
highbd_horiz_filter(&src_padded, &src2_padded, tmp, sx, alpha, k,
offset_bits_horiz, reduce_bits_horiz);
}
} else {
highbd_prepare_warp_horizontal_filter(
ref, tmp, stride, ix4, iy4, sx4, alpha, beta, p_height, height, i,
offset_bits_horiz, reduce_bits_horiz);
}
// Vertical filter
for (k = -4 ; k < AOMMIN(4 , p_height - i - 4 ); ++k) {
int sy = sy4 + delta * (k + 4 );
// Load from tmp and rearrange pairs of consecutive rows into the
// column order 0 0 2 2 4 4 6 6; 1 1 3 3 5 5 7 7
const __m128i *src = tmp + (k + 4 );
const __m128i src_0 = _mm_unpacklo_epi16(src[0 ], src[1 ]);
const __m128i src_2 = _mm_unpacklo_epi16(src[2 ], src[3 ]);
const __m128i src_4 = _mm_unpacklo_epi16(src[4 ], src[5 ]);
const __m128i src_6 = _mm_unpacklo_epi16(src[6 ], src[7 ]);
// Filter even-index pixels
const __m128i tmp_0 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_2 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_4 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_6 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2);
const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6);
const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2);
const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6);
const __m128i coeff_0 = _mm_unpacklo_epi64(tmp_8, tmp_10);
const __m128i coeff_2 = _mm_unpackhi_epi64(tmp_8, tmp_10);
const __m128i coeff_4 = _mm_unpacklo_epi64(tmp_12, tmp_14);
const __m128i coeff_6 = _mm_unpackhi_epi64(tmp_12, tmp_14);
const __m128i res_0 = _mm_madd_epi16(src_0, coeff_0);
const __m128i res_2 = _mm_madd_epi16(src_2, coeff_2);
const __m128i res_4 = _mm_madd_epi16(src_4, coeff_4);
const __m128i res_6 = _mm_madd_epi16(src_6, coeff_6);
const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
_mm_add_epi32(res_4, res_6));
// Filter odd-index pixels
const __m128i src_1 = _mm_unpackhi_epi16(src[0 ], src[1 ]);
const __m128i src_3 = _mm_unpackhi_epi16(src[2 ], src[3 ]);
const __m128i src_5 = _mm_unpackhi_epi16(src[4 ], src[5 ]);
const __m128i src_7 = _mm_unpackhi_epi16(src[6 ], src[7 ]);
const __m128i tmp_1 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_3 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_5 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_7 = _mm_loadu_si128(
(__m128i *)(av1_warped_filter +
((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS)));
const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3);
const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7);
const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3);
const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7);
const __m128i coeff_1 = _mm_unpacklo_epi64(tmp_9, tmp_11);
const __m128i coeff_3 = _mm_unpackhi_epi64(tmp_9, tmp_11);
const __m128i coeff_5 = _mm_unpacklo_epi64(tmp_13, tmp_15);
const __m128i coeff_7 = _mm_unpackhi_epi64(tmp_13, tmp_15);
const __m128i res_1 = _mm_madd_epi16(src_1, coeff_1);
const __m128i res_3 = _mm_madd_epi16(src_3, coeff_3);
const __m128i res_5 = _mm_madd_epi16(src_5, coeff_5);
const __m128i res_7 = _mm_madd_epi16(src_7, coeff_7);
const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3),
_mm_add_epi32(res_5, res_7));
// Rearrange pixels back into the order 0 ... 7
__m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd);
__m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd);
if (conv_params->is_compound) {
__m128i *const p =
(__m128i *)&conv_params
->dst[(i + k + 4 ) * conv_params->dst_stride + j];
res_lo = _mm_add_epi32(res_lo, res_add_const);
res_lo = _mm_sra_epi32(_mm_add_epi32(res_lo, reduce_bits_vert_const),
reduce_bits_vert_shift);
if (conv_params->do_average) {
__m128i *const dst16 = (__m128i *)&pred[(i + k + 4 ) * p_stride + j];
__m128i p_32 = _mm_cvtepu16_epi32(_mm_loadl_epi64(p));
if (conv_params->use_dist_wtd_comp_avg) {
res_lo = _mm_add_epi32(_mm_mullo_epi32(p_32, wt0),
_mm_mullo_epi32(res_lo, wt1));
res_lo = _mm_srai_epi32(res_lo, DIST_PRECISION_BITS);
} else {
res_lo = _mm_srai_epi32(_mm_add_epi32(p_32, res_lo), 1 );
}
__m128i res32_lo = _mm_add_epi32(res_lo, res_sub_const);
res32_lo = _mm_sra_epi32(_mm_add_epi32(res32_lo, round_bits_const),
round_bits_shift);
__m128i res16_lo = _mm_packus_epi32(res32_lo, res32_lo);
res16_lo = _mm_min_epi16(res16_lo, clip_pixel);
_mm_storel_epi64(dst16, res16_lo);
} else {
res_lo = _mm_packus_epi32(res_lo, res_lo);
_mm_storel_epi64(p, res_lo);
}
if (p_width > 4 ) {
__m128i *const p4 =
(__m128i *)&conv_params
->dst[(i + k + 4 ) * conv_params->dst_stride + j + 4 ];
res_hi = _mm_add_epi32(res_hi, res_add_const);
res_hi =
_mm_sra_epi32(_mm_add_epi32(res_hi, reduce_bits_vert_const),
reduce_bits_vert_shift);
if (conv_params->do_average) {
__m128i *const dst16_4 =
(__m128i *)&pred[(i + k + 4 ) * p_stride + j + 4 ];
__m128i p4_32 = _mm_cvtepu16_epi32(_mm_loadl_epi64(p4));
if (conv_params->use_dist_wtd_comp_avg) {
res_hi = _mm_add_epi32(_mm_mullo_epi32(p4_32, wt0),
_mm_mullo_epi32(res_hi, wt1));
res_hi = _mm_srai_epi32(res_hi, DIST_PRECISION_BITS);
} else {
res_hi = _mm_srai_epi32(_mm_add_epi32(p4_32, res_hi), 1 );
}
__m128i res32_hi = _mm_add_epi32(res_hi, res_sub_const);
res32_hi = _mm_sra_epi32(
_mm_add_epi32(res32_hi, round_bits_const), round_bits_shift);
__m128i res16_hi = _mm_packus_epi32(res32_hi, res32_hi);
res16_hi = _mm_min_epi16(res16_hi, clip_pixel);
_mm_storel_epi64(dst16_4, res16_hi);
} else {
res_hi = _mm_packus_epi32(res_hi, res_hi);
_mm_storel_epi64(p4, res_hi);
}
}
} else {
// Round and pack into 8 bits
const __m128i round_const =
_mm_set1_epi32(-(1 << (bd + reduce_bits_vert - 1 )) +
((1 << reduce_bits_vert) >> 1 ));
const __m128i res_lo_round = _mm_srai_epi32(
_mm_add_epi32(res_lo, round_const), reduce_bits_vert);
const __m128i res_hi_round = _mm_srai_epi32(
_mm_add_epi32(res_hi, round_const), reduce_bits_vert);
__m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round);
// Clamp res_16bit to the range [0, 2^bd - 1]
const __m128i max_val = _mm_set1_epi16((1 << bd) - 1 );
const __m128i zero = _mm_setzero_si128();
res_16bit = _mm_max_epi16(_mm_min_epi16(res_16bit, max_val), zero);
// Store, blending with 'pred' if needed
__m128i *const p = (__m128i *)&pred[(i + k + 4 ) * p_stride + j];
// Note: If we're outputting a 4x4 block, we need to be very careful
// to only output 4 pixels at this point, to avoid encode/decode
// mismatches when encoding with multiple threads.
if (p_width == 4 ) {
_mm_storel_epi64(p, res_16bit);
} else {
_mm_storeu_si128(p, res_16bit);
}
}
}
}
}
}
Messung V0.5 in Prozent C=93 H=94 G=93
¤ Dauer der Verarbeitung: 0.11 Sekunden
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*© Formatika GbR, Deutschland