8c03fff40b
vp8/encoder/x86/denoising_sse2.c:35:10: error: taking the absolute value of unsigned type 'unsigned int' has no effect [-Werror,-Wabsolute-value] Change-Id: I749ba8e6f55dbd9b822bfd4260a8397554f5e524
380 lines
17 KiB
C
380 lines
17 KiB
C
/*
|
|
* Copyright (c) 2012 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 "vp8/encoder/denoising.h"
|
|
#include "vp8/common/reconinter.h"
|
|
#include "vpx/vpx_integer.h"
|
|
#include "vpx_mem/vpx_mem.h"
|
|
#include "vp8_rtcd.h"
|
|
|
|
#include <emmintrin.h>
|
|
#include "vpx_ports/emmintrin_compat.h"
|
|
|
|
/* Compute the sum of all pixel differences of this MB. */
|
|
static INLINE unsigned int abs_sum_diff_16x1(__m128i acc_diff) {
|
|
const __m128i k_1 = _mm_set1_epi16(1);
|
|
const __m128i acc_diff_lo = _mm_srai_epi16(
|
|
_mm_unpacklo_epi8(acc_diff, acc_diff), 8);
|
|
const __m128i acc_diff_hi = _mm_srai_epi16(
|
|
_mm_unpackhi_epi8(acc_diff, acc_diff), 8);
|
|
const __m128i acc_diff_16 = _mm_add_epi16(acc_diff_lo, acc_diff_hi);
|
|
const __m128i hg_fe_dc_ba = _mm_madd_epi16(acc_diff_16, k_1);
|
|
const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
|
|
_mm_srli_si128(hg_fe_dc_ba, 8));
|
|
const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
|
|
_mm_srli_si128(hgfe_dcba, 4));
|
|
unsigned int sum_diff = abs(_mm_cvtsi128_si32(hgfedcba));
|
|
|
|
return sum_diff;
|
|
}
|
|
|
|
int vp8_denoiser_filter_sse2(unsigned char *mc_running_avg_y,
|
|
int mc_avg_y_stride,
|
|
unsigned char *running_avg_y, int avg_y_stride,
|
|
unsigned char *sig, int sig_stride,
|
|
unsigned int motion_magnitude,
|
|
int increase_denoising)
|
|
{
|
|
unsigned char *running_avg_y_start = running_avg_y;
|
|
unsigned char *sig_start = sig;
|
|
unsigned int sum_diff_thresh;
|
|
int r;
|
|
int shift_inc = (increase_denoising &&
|
|
motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ? 1 : 0;
|
|
__m128i acc_diff = _mm_setzero_si128();
|
|
const __m128i k_0 = _mm_setzero_si128();
|
|
const __m128i k_4 = _mm_set1_epi8(4 + shift_inc);
|
|
const __m128i k_8 = _mm_set1_epi8(8);
|
|
const __m128i k_16 = _mm_set1_epi8(16);
|
|
/* Modify each level's adjustment according to motion_magnitude. */
|
|
const __m128i l3 = _mm_set1_epi8(
|
|
(motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ?
|
|
7 + shift_inc : 6);
|
|
/* Difference between level 3 and level 2 is 2. */
|
|
const __m128i l32 = _mm_set1_epi8(2);
|
|
/* Difference between level 2 and level 1 is 1. */
|
|
const __m128i l21 = _mm_set1_epi8(1);
|
|
|
|
for (r = 0; r < 16; ++r)
|
|
{
|
|
/* Calculate differences */
|
|
const __m128i v_sig = _mm_loadu_si128((__m128i *)(&sig[0]));
|
|
const __m128i v_mc_running_avg_y = _mm_loadu_si128(
|
|
(__m128i *)(&mc_running_avg_y[0]));
|
|
__m128i v_running_avg_y;
|
|
const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg_y, v_sig);
|
|
const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg_y);
|
|
/* Obtain the sign. FF if diff is negative. */
|
|
const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
|
|
/* Clamp absolute difference to 16 to be used to get mask. Doing this
|
|
* allows us to use _mm_cmpgt_epi8, which operates on signed byte. */
|
|
const __m128i clamped_absdiff = _mm_min_epu8(
|
|
_mm_or_si128(pdiff, ndiff), k_16);
|
|
/* Get masks for l2 l1 and l0 adjustments */
|
|
const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff);
|
|
const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff);
|
|
const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff);
|
|
/* Get adjustments for l2, l1, and l0 */
|
|
__m128i adj2 = _mm_and_si128(mask2, l32);
|
|
const __m128i adj1 = _mm_and_si128(mask1, l21);
|
|
const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff);
|
|
__m128i adj, padj, nadj;
|
|
|
|
/* Combine the adjustments and get absolute adjustments. */
|
|
adj2 = _mm_add_epi8(adj2, adj1);
|
|
adj = _mm_sub_epi8(l3, adj2);
|
|
adj = _mm_andnot_si128(mask0, adj);
|
|
adj = _mm_or_si128(adj, adj0);
|
|
|
|
/* Restore the sign and get positive and negative adjustments. */
|
|
padj = _mm_andnot_si128(diff_sign, adj);
|
|
nadj = _mm_and_si128(diff_sign, adj);
|
|
|
|
/* Calculate filtered value. */
|
|
v_running_avg_y = _mm_adds_epu8(v_sig, padj);
|
|
v_running_avg_y = _mm_subs_epu8(v_running_avg_y, nadj);
|
|
_mm_storeu_si128((__m128i *)running_avg_y, v_running_avg_y);
|
|
|
|
/* Adjustments <=7, and each element in acc_diff can fit in signed
|
|
* char.
|
|
*/
|
|
acc_diff = _mm_adds_epi8(acc_diff, padj);
|
|
acc_diff = _mm_subs_epi8(acc_diff, nadj);
|
|
|
|
/* Update pointers for next iteration. */
|
|
sig += sig_stride;
|
|
mc_running_avg_y += mc_avg_y_stride;
|
|
running_avg_y += avg_y_stride;
|
|
}
|
|
|
|
{
|
|
/* Compute the sum of all pixel differences of this MB. */
|
|
unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
|
|
sum_diff_thresh = SUM_DIFF_THRESHOLD;
|
|
if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH;
|
|
if (abs_sum_diff > sum_diff_thresh) {
|
|
// Before returning to copy the block (i.e., apply no denoising),
|
|
// checK if we can still apply some (weaker) temporal filtering to
|
|
// this block, that would otherwise not be denoised at all. Simplest
|
|
// is to apply an additional adjustment to running_avg_y to bring it
|
|
// closer to sig. The adjustment is capped by a maximum delta, and
|
|
// chosen such that in most cases the resulting sum_diff will be
|
|
// within the accceptable range given by sum_diff_thresh.
|
|
|
|
// The delta is set by the excess of absolute pixel diff over the
|
|
// threshold.
|
|
int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
|
|
// Only apply the adjustment for max delta up to 3.
|
|
if (delta < 4) {
|
|
const __m128i k_delta = _mm_set1_epi8(delta);
|
|
sig -= sig_stride * 16;
|
|
mc_running_avg_y -= mc_avg_y_stride * 16;
|
|
running_avg_y -= avg_y_stride * 16;
|
|
for (r = 0; r < 16; ++r) {
|
|
__m128i v_running_avg_y =
|
|
_mm_loadu_si128((__m128i *)(&running_avg_y[0]));
|
|
// Calculate differences.
|
|
const __m128i v_sig = _mm_loadu_si128((__m128i *)(&sig[0]));
|
|
const __m128i v_mc_running_avg_y =
|
|
_mm_loadu_si128((__m128i *)(&mc_running_avg_y[0]));
|
|
const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg_y, v_sig);
|
|
const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg_y);
|
|
// Obtain the sign. FF if diff is negative.
|
|
const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
|
|
// Clamp absolute difference to delta to get the adjustment.
|
|
const __m128i adj =
|
|
_mm_min_epu8(_mm_or_si128(pdiff, ndiff), k_delta);
|
|
// Restore the sign and get positive and negative adjustments.
|
|
__m128i padj, nadj;
|
|
padj = _mm_andnot_si128(diff_sign, adj);
|
|
nadj = _mm_and_si128(diff_sign, adj);
|
|
// Calculate filtered value.
|
|
v_running_avg_y = _mm_subs_epu8(v_running_avg_y, padj);
|
|
v_running_avg_y = _mm_adds_epu8(v_running_avg_y, nadj);
|
|
_mm_storeu_si128((__m128i *)running_avg_y, v_running_avg_y);
|
|
|
|
// Accumulate the adjustments.
|
|
acc_diff = _mm_subs_epi8(acc_diff, padj);
|
|
acc_diff = _mm_adds_epi8(acc_diff, nadj);
|
|
|
|
// Update pointers for next iteration.
|
|
sig += sig_stride;
|
|
mc_running_avg_y += mc_avg_y_stride;
|
|
running_avg_y += avg_y_stride;
|
|
}
|
|
abs_sum_diff = abs_sum_diff_16x1(acc_diff);
|
|
if (abs_sum_diff > sum_diff_thresh) {
|
|
return COPY_BLOCK;
|
|
}
|
|
} else {
|
|
return COPY_BLOCK;
|
|
}
|
|
}
|
|
}
|
|
|
|
vp8_copy_mem16x16(running_avg_y_start, avg_y_stride, sig_start, sig_stride);
|
|
return FILTER_BLOCK;
|
|
}
|
|
|
|
int vp8_denoiser_filter_uv_sse2(unsigned char *mc_running_avg,
|
|
int mc_avg_stride,
|
|
unsigned char *running_avg, int avg_stride,
|
|
unsigned char *sig, int sig_stride,
|
|
unsigned int motion_magnitude,
|
|
int increase_denoising) {
|
|
unsigned char *running_avg_start = running_avg;
|
|
unsigned char *sig_start = sig;
|
|
unsigned int sum_diff_thresh;
|
|
int r;
|
|
int shift_inc = (increase_denoising &&
|
|
motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ? 1 : 0;
|
|
__m128i acc_diff = _mm_setzero_si128();
|
|
const __m128i k_0 = _mm_setzero_si128();
|
|
const __m128i k_4 = _mm_set1_epi8(4 + shift_inc);
|
|
const __m128i k_8 = _mm_set1_epi8(8);
|
|
const __m128i k_16 = _mm_set1_epi8(16);
|
|
/* Modify each level's adjustment according to motion_magnitude. */
|
|
const __m128i l3 = _mm_set1_epi8(
|
|
(motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD_UV) ?
|
|
7 + shift_inc : 6);
|
|
/* Difference between level 3 and level 2 is 2. */
|
|
const __m128i l32 = _mm_set1_epi8(2);
|
|
/* Difference between level 2 and level 1 is 1. */
|
|
const __m128i l21 = _mm_set1_epi8(1);
|
|
|
|
{
|
|
const __m128i k_1 = _mm_set1_epi16(1);
|
|
__m128i vec_sum_block = _mm_setzero_si128();
|
|
|
|
// Avoid denoising color signal if its close to average level.
|
|
for (r = 0; r < 8; ++r) {
|
|
const __m128i v_sig = _mm_loadl_epi64((__m128i *)(&sig[0]));
|
|
const __m128i v_sig_unpack = _mm_unpacklo_epi8(v_sig, k_0);
|
|
vec_sum_block = _mm_add_epi16(vec_sum_block, v_sig_unpack);
|
|
sig += sig_stride;
|
|
}
|
|
sig -= sig_stride * 8;
|
|
{
|
|
const __m128i hg_fe_dc_ba = _mm_madd_epi16(vec_sum_block, k_1);
|
|
const __m128i hgfe_dcba = _mm_add_epi32(hg_fe_dc_ba,
|
|
_mm_srli_si128(hg_fe_dc_ba, 8));
|
|
const __m128i hgfedcba = _mm_add_epi32(hgfe_dcba,
|
|
_mm_srli_si128(hgfe_dcba, 4));
|
|
const int sum_block = _mm_cvtsi128_si32(hgfedcba);
|
|
if (abs(sum_block - (128 * 8 * 8)) < SUM_DIFF_FROM_AVG_THRESH_UV) {
|
|
return COPY_BLOCK;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (r = 0; r < 4; ++r) {
|
|
/* Calculate differences */
|
|
const __m128i v_sig_low = _mm_castpd_si128(
|
|
_mm_load_sd((double *)(&sig[0])));
|
|
const __m128i v_sig = _mm_castpd_si128(
|
|
_mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
|
|
(double *)(&sig[sig_stride])));
|
|
const __m128i v_mc_running_avg_low = _mm_castpd_si128(
|
|
_mm_load_sd((double *)(&mc_running_avg[0])));
|
|
const __m128i v_mc_running_avg = _mm_castpd_si128(
|
|
_mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
|
|
(double *)(&mc_running_avg[mc_avg_stride])));
|
|
const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
|
|
const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
|
|
/* Obtain the sign. FF if diff is negative. */
|
|
const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
|
|
/* Clamp absolute difference to 16 to be used to get mask. Doing this
|
|
* allows us to use _mm_cmpgt_epi8, which operates on signed byte. */
|
|
const __m128i clamped_absdiff = _mm_min_epu8(
|
|
_mm_or_si128(pdiff, ndiff), k_16);
|
|
/* Get masks for l2 l1 and l0 adjustments */
|
|
const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff);
|
|
const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff);
|
|
const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff);
|
|
/* Get adjustments for l2, l1, and l0 */
|
|
__m128i adj2 = _mm_and_si128(mask2, l32);
|
|
const __m128i adj1 = _mm_and_si128(mask1, l21);
|
|
const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff);
|
|
__m128i adj, padj, nadj;
|
|
__m128i v_running_avg;
|
|
|
|
/* Combine the adjustments and get absolute adjustments. */
|
|
adj2 = _mm_add_epi8(adj2, adj1);
|
|
adj = _mm_sub_epi8(l3, adj2);
|
|
adj = _mm_andnot_si128(mask0, adj);
|
|
adj = _mm_or_si128(adj, adj0);
|
|
|
|
/* Restore the sign and get positive and negative adjustments. */
|
|
padj = _mm_andnot_si128(diff_sign, adj);
|
|
nadj = _mm_and_si128(diff_sign, adj);
|
|
|
|
/* Calculate filtered value. */
|
|
v_running_avg = _mm_adds_epu8(v_sig, padj);
|
|
v_running_avg = _mm_subs_epu8(v_running_avg, nadj);
|
|
|
|
_mm_storel_pd((double *)&running_avg[0],
|
|
_mm_castsi128_pd(v_running_avg));
|
|
_mm_storeh_pd((double *)&running_avg[avg_stride],
|
|
_mm_castsi128_pd(v_running_avg));
|
|
|
|
/* Adjustments <=7, and each element in acc_diff can fit in signed
|
|
* char.
|
|
*/
|
|
acc_diff = _mm_adds_epi8(acc_diff, padj);
|
|
acc_diff = _mm_subs_epi8(acc_diff, nadj);
|
|
|
|
/* Update pointers for next iteration. */
|
|
sig += sig_stride * 2;
|
|
mc_running_avg += mc_avg_stride * 2;
|
|
running_avg += avg_stride * 2;
|
|
}
|
|
|
|
{
|
|
unsigned int abs_sum_diff = abs_sum_diff_16x1(acc_diff);
|
|
sum_diff_thresh = SUM_DIFF_THRESHOLD_UV;
|
|
if (increase_denoising) sum_diff_thresh = SUM_DIFF_THRESHOLD_HIGH_UV;
|
|
if (abs_sum_diff > sum_diff_thresh) {
|
|
// Before returning to copy the block (i.e., apply no denoising),
|
|
// checK if we can still apply some (weaker) temporal filtering to
|
|
// this block, that would otherwise not be denoised at all. Simplest
|
|
// is to apply an additional adjustment to running_avg_y to bring it
|
|
// closer to sig. The adjustment is capped by a maximum delta, and
|
|
// chosen such that in most cases the resulting sum_diff will be
|
|
// within the accceptable range given by sum_diff_thresh.
|
|
|
|
// The delta is set by the excess of absolute pixel diff over the
|
|
// threshold.
|
|
int delta = ((abs_sum_diff - sum_diff_thresh) >> 8) + 1;
|
|
// Only apply the adjustment for max delta up to 3.
|
|
if (delta < 4) {
|
|
const __m128i k_delta = _mm_set1_epi8(delta);
|
|
sig -= sig_stride * 8;
|
|
mc_running_avg -= mc_avg_stride * 8;
|
|
running_avg -= avg_stride * 8;
|
|
for (r = 0; r < 4; ++r) {
|
|
// Calculate differences.
|
|
const __m128i v_sig_low = _mm_castpd_si128(
|
|
_mm_load_sd((double *)(&sig[0])));
|
|
const __m128i v_sig = _mm_castpd_si128(
|
|
_mm_loadh_pd(_mm_castsi128_pd(v_sig_low),
|
|
(double *)(&sig[sig_stride])));
|
|
const __m128i v_mc_running_avg_low = _mm_castpd_si128(
|
|
_mm_load_sd((double *)(&mc_running_avg[0])));
|
|
const __m128i v_mc_running_avg = _mm_castpd_si128(
|
|
_mm_loadh_pd(_mm_castsi128_pd(v_mc_running_avg_low),
|
|
(double *)(&mc_running_avg[mc_avg_stride])));
|
|
const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg, v_sig);
|
|
const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg);
|
|
// Obtain the sign. FF if diff is negative.
|
|
const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0);
|
|
// Clamp absolute difference to delta to get the adjustment.
|
|
const __m128i adj =
|
|
_mm_min_epu8(_mm_or_si128(pdiff, ndiff), k_delta);
|
|
// Restore the sign and get positive and negative adjustments.
|
|
__m128i padj, nadj;
|
|
const __m128i v_running_avg_low = _mm_castpd_si128(
|
|
_mm_load_sd((double *)(&running_avg[0])));
|
|
__m128i v_running_avg = _mm_castpd_si128(
|
|
_mm_loadh_pd(_mm_castsi128_pd(v_running_avg_low),
|
|
(double *)(&running_avg[avg_stride])));
|
|
padj = _mm_andnot_si128(diff_sign, adj);
|
|
nadj = _mm_and_si128(diff_sign, adj);
|
|
// Calculate filtered value.
|
|
v_running_avg = _mm_subs_epu8(v_running_avg, padj);
|
|
v_running_avg = _mm_adds_epu8(v_running_avg, nadj);
|
|
|
|
_mm_storel_pd((double *)&running_avg[0],
|
|
_mm_castsi128_pd(v_running_avg));
|
|
_mm_storeh_pd((double *)&running_avg[avg_stride],
|
|
_mm_castsi128_pd(v_running_avg));
|
|
|
|
// Accumulate the adjustments.
|
|
acc_diff = _mm_subs_epi8(acc_diff, padj);
|
|
acc_diff = _mm_adds_epi8(acc_diff, nadj);
|
|
|
|
// Update pointers for next iteration.
|
|
sig += sig_stride * 2;
|
|
mc_running_avg += mc_avg_stride * 2;
|
|
running_avg += avg_stride * 2;
|
|
}
|
|
abs_sum_diff = abs_sum_diff_16x1(acc_diff);
|
|
if (abs_sum_diff > sum_diff_thresh) {
|
|
return COPY_BLOCK;
|
|
}
|
|
} else {
|
|
return COPY_BLOCK;
|
|
}
|
|
}
|
|
}
|
|
|
|
vp8_copy_mem8x8(running_avg_start, avg_stride, sig_start, sig_stride);
|
|
return FILTER_BLOCK;
|
|
}
|