Commit 521383ae authored by David Barker's avatar David Barker Committed by Debargha Mukherjee
Browse files

Add SSSE3 highbd warp filter

Change-Id: Ic3b8508c3364aecff1b2f53c7246a5e381b63018
parent 607550ea
......@@ -169,6 +169,9 @@ endif
ifneq ($(findstring yes,$(CONFIG_GLOBAL_MOTION) $(CONFIG_WARPED_MOTION)),)
AV1_COMMON_SRCS-$(HAVE_SSE2) += common/x86/warp_plane_sse2.c
ifeq ($(CONFIG_AOM_HIGHBITDEPTH),yes)
AV1_COMMON_SRCS-$(HAVE_SSSE3) += common/x86/highbd_warp_plane_ssse3.c
endif
endif
$(eval $(call rtcd_h_template,av1_rtcd,av1/common/av1_rtcd_defs.pl))
......@@ -673,6 +673,7 @@ if ((aom_config("CONFIG_WARPED_MOTION") eq "yes") ||
if (aom_config("CONFIG_AOM_HIGHBITDEPTH") eq "yes") {
add_proto qw/void av1_highbd_warp_affine/, "int32_t *mat, 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, int ref_frm, int32_t alpha, int32_t beta, int32_t gamma, int32_t delta";
specialize qw/av1_highbd_warp_affine ssse3/;
}
}
......
/*
* 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 <tmmintrin.h>
#include "./av1_rtcd.h"
#include "av1/common/warped_motion.h"
static const __m128i *const filter = (const __m128i *const)warped_filter;
/* SSE2 version of the rotzoom/affine warp filter */
void av1_highbd_warp_affine_ssse3(int32_t *mat, 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, int ref_frm,
int32_t alpha, int32_t beta, int32_t gamma,
int32_t delta) {
#if HORSHEAR_REDUCE_PREC_BITS >= 5
__m128i tmp[15];
#else
#error "HORSHEAR_REDUCE_PREC_BITS < 5 not currently supported by SSSE3 filter"
#endif
int i, j, k;
/* 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) {
// (x, y) coordinates of the center of this block in the destination
// image
int32_t dst_x = p_col + j + 4;
int32_t dst_y = p_row + i + 4;
int32_t x4, y4, ix4, sx4, iy4, sy4;
if (subsampling_x)
x4 = ROUND_POWER_OF_TWO_SIGNED(
mat[2] * 2 * dst_x + mat[3] * 2 * dst_y + mat[0] +
(mat[2] + mat[3] - (1 << WARPEDMODEL_PREC_BITS)) / 2,
1);
else
x4 = mat[2] * dst_x + mat[3] * dst_y + mat[0];
if (subsampling_y)
y4 = ROUND_POWER_OF_TWO_SIGNED(
mat[4] * 2 * dst_x + mat[5] * 2 * dst_y + mat[1] +
(mat[4] + mat[5] - (1 << WARPEDMODEL_PREC_BITS)) / 2,
1);
else
y4 = mat[4] * dst_x + mat[5] * dst_y + mat[1];
ix4 = x4 >> WARPEDMODEL_PREC_BITS;
sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
iy4 = y4 >> WARPEDMODEL_PREC_BITS;
sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1);
// Horizontal filter
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;
// 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) {
tmp[k + 7] = _mm_set1_epi16(
ref[iy * stride] *
(1 << (WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS)));
} else if (ix4 >= width + 6) {
tmp[k + 7] = _mm_set1_epi16(
ref[iy * stride + (width - 1)] *
(1 << (WARPEDPIXEL_FILTER_BITS - HORSHEAR_REDUCE_PREC_BITS)));
} else {
int sx = sx4 + alpha * (-4) + beta * k +
// Include rounding and offset here
(1 << (WARPEDDIFF_PREC_BITS - 1)) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
// Load source pixels
__m128i src =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7));
__m128i src2 =
_mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1));
// Filter even-index pixels
__m128i tmp_0 = filter[(sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_2 = filter[(sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_4 = filter[(sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_6 = filter[(sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS];
// coeffs 0 1 0 1 2 3 2 3 for pixels 0, 2
__m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2);
// coeffs 0 1 0 1 2 3 2 3 for pixels 4, 6
__m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6);
// coeffs 4 5 4 5 6 7 6 7 for pixels 0, 2
__m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2);
// coeffs 4 5 4 5 6 7 6 7 for pixels 4, 6
__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
__m128i coeff_0 = _mm_unpacklo_epi64(tmp_8, tmp_10);
// coeffs 2 3 2 3 2 3 2 3 for pixels 0, 2, 4, 6
__m128i coeff_2 = _mm_unpackhi_epi64(tmp_8, tmp_10);
// coeffs 4 5 4 5 4 5 4 5 for pixels 0, 2, 4, 6
__m128i coeff_4 = _mm_unpacklo_epi64(tmp_12, tmp_14);
// coeffs 6 7 6 7 6 7 6 7 for pixels 0, 2, 4, 6
__m128i coeff_6 = _mm_unpackhi_epi64(tmp_12, tmp_14);
__m128i round_const =
_mm_set1_epi32((1 << HORSHEAR_REDUCE_PREC_BITS) >> 1);
// Calculate filtered results
__m128i res_0 = _mm_madd_epi16(src, coeff_0);
__m128i res_2 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 4), coeff_2);
__m128i res_4 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 8), coeff_4);
__m128i res_6 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 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_srai_epi32(_mm_add_epi32(res_even, round_const),
HORSHEAR_REDUCE_PREC_BITS);
// Filter odd-index pixels
__m128i tmp_1 = filter[(sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_3 = filter[(sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_5 = filter[(sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_7 = filter[(sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3);
__m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7);
__m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3);
__m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7);
__m128i coeff_1 = _mm_unpacklo_epi64(tmp_9, tmp_11);
__m128i coeff_3 = _mm_unpackhi_epi64(tmp_9, tmp_11);
__m128i coeff_5 = _mm_unpacklo_epi64(tmp_13, tmp_15);
__m128i coeff_7 = _mm_unpackhi_epi64(tmp_13, tmp_15);
__m128i res_1 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 2), coeff_1);
__m128i res_3 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 6), coeff_3);
__m128i res_5 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 10), coeff_5);
__m128i res_7 =
_mm_madd_epi16(_mm_alignr_epi8(src2, src, 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_srai_epi32(_mm_add_epi32(res_odd, round_const),
HORSHEAR_REDUCE_PREC_BITS);
// 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);
}
}
// Vertical filter
for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) {
int sy = sy4 + gamma * (-4) + delta * k +
(1 << (WARPEDDIFF_PREC_BITS - 1)) +
(WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS);
// 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
__m128i *src = tmp + (k + 4);
__m128i src_0 = _mm_unpacklo_epi16(src[0], src[1]);
__m128i src_2 = _mm_unpacklo_epi16(src[2], src[3]);
__m128i src_4 = _mm_unpacklo_epi16(src[4], src[5]);
__m128i src_6 = _mm_unpacklo_epi16(src[6], src[7]);
// Filter even-index pixels
__m128i tmp_0 = filter[(sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_2 = filter[(sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_4 = filter[(sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_6 = filter[(sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2);
__m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6);
__m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2);
__m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6);
__m128i coeff_0 = _mm_unpacklo_epi64(tmp_8, tmp_10);
__m128i coeff_2 = _mm_unpackhi_epi64(tmp_8, tmp_10);
__m128i coeff_4 = _mm_unpacklo_epi64(tmp_12, tmp_14);
__m128i coeff_6 = _mm_unpackhi_epi64(tmp_12, tmp_14);
__m128i res_0 = _mm_madd_epi16(src_0, coeff_0);
__m128i res_2 = _mm_madd_epi16(src_2, coeff_2);
__m128i res_4 = _mm_madd_epi16(src_4, coeff_4);
__m128i res_6 = _mm_madd_epi16(src_6, coeff_6);
__m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2),
_mm_add_epi32(res_4, res_6));
// Filter odd-index pixels
__m128i src_1 = _mm_unpackhi_epi16(src[0], src[1]);
__m128i src_3 = _mm_unpackhi_epi16(src[2], src[3]);
__m128i src_5 = _mm_unpackhi_epi16(src[4], src[5]);
__m128i src_7 = _mm_unpackhi_epi16(src[6], src[7]);
__m128i tmp_1 = filter[(sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_3 = filter[(sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_5 = filter[(sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_7 = filter[(sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS];
__m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3);
__m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7);
__m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3);
__m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7);
__m128i coeff_1 = _mm_unpacklo_epi64(tmp_9, tmp_11);
__m128i coeff_3 = _mm_unpackhi_epi64(tmp_9, tmp_11);
__m128i coeff_5 = _mm_unpacklo_epi64(tmp_13, tmp_15);
__m128i coeff_7 = _mm_unpackhi_epi64(tmp_13, tmp_15);
__m128i res_1 = _mm_madd_epi16(src_1, coeff_1);
__m128i res_3 = _mm_madd_epi16(src_3, coeff_3);
__m128i res_5 = _mm_madd_epi16(src_5, coeff_5);
__m128i res_7 = _mm_madd_epi16(src_7, coeff_7);
__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);
// Round and pack into 8 bits
__m128i round_const =
_mm_set1_epi32((1 << VERSHEAR_REDUCE_PREC_BITS) >> 1);
__m128i res_lo_round = _mm_srai_epi32(
_mm_add_epi32(res_lo, round_const), VERSHEAR_REDUCE_PREC_BITS);
__m128i res_hi_round = _mm_srai_epi32(
_mm_add_epi32(res_hi, round_const), VERSHEAR_REDUCE_PREC_BITS);
__m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round);
// Clamp res_16bit to the range [0, 2^bd - 1]
__m128i max_val = _mm_set1_epi16((1 << bd) - 1);
__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 *p = (__m128i *)&pred[(i + k + 4) * p_stride + j];
if (ref_frm) {
__m128i orig = _mm_loadu_si128(p);
_mm_storeu_si128(p, _mm_avg_epu16(res_16bit, orig));
} else {
_mm_storeu_si128(p, res_16bit);
}
}
}
}
}
......@@ -14,7 +14,7 @@
#include "./av1_rtcd.h"
#include "av1/common/warped_motion.h"
const __m128i *const filter = (const __m128i *const)warped_filter;
static const __m128i *const filter = (const __m128i *const)warped_filter;
/* SSE2 version of the rotzoom/affine warp filter */
void av1_warp_affine_sse2(int32_t *mat, uint8_t *ref, int width, int height,
......
......@@ -27,4 +27,13 @@ TEST_P(AV1WarpFilterTest, CheckOutput) { RunCheckOutput(av1_warp_affine_sse2); }
INSTANTIATE_TEST_CASE_P(SSE2, AV1WarpFilterTest,
libaom_test::AV1WarpFilter::GetDefaultParams());
#if CONFIG_AOM_HIGHBITDEPTH
TEST_P(AV1HighbdWarpFilterTest, CheckOutput) {
RunCheckOutput(av1_highbd_warp_affine_ssse3);
}
INSTANTIATE_TEST_CASE_P(SSSE3, AV1HighbdWarpFilterTest,
libaom_test::AV1HighbdWarpFilter::GetDefaultParams());
#endif
} // namespace
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