176c291d9c
This commit fixes a potential integer overflow issue in function hadamard_16x16. It adds corresponding dynamic range comment. Change-Id: Iec22f3be345fb920ec79178e016378e2f65b20be
425 lines
14 KiB
C
425 lines
14 KiB
C
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <emmintrin.h>
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#include "./vp9_rtcd.h"
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#include "vpx_ports/mem.h"
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void vp9_minmax_8x8_sse2(const uint8_t *s, int p, const uint8_t *d, int dp,
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int *min, int *max) {
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__m128i u0, s0, d0, diff, maxabsdiff, minabsdiff, negdiff, absdiff0, absdiff;
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u0 = _mm_setzero_si128();
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// Row 0
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff0 = _mm_max_epi16(diff, negdiff);
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// Row 1
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(absdiff0, absdiff);
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minabsdiff = _mm_min_epi16(absdiff0, absdiff);
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// Row 2
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 2 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 2 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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// Row 3
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 3 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 3 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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// Row 4
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 4 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 4 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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// Row 5
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 5 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 5 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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// Row 6
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 6 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 6 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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// Row 7
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 7 * p)), u0);
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d0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(d + 7 * dp)), u0);
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diff = _mm_subs_epi16(s0, d0);
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negdiff = _mm_subs_epi16(u0, diff);
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absdiff = _mm_max_epi16(diff, negdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, absdiff);
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minabsdiff = _mm_min_epi16(minabsdiff, absdiff);
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maxabsdiff = _mm_max_epi16(maxabsdiff, _mm_srli_si128(maxabsdiff, 8));
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maxabsdiff = _mm_max_epi16(maxabsdiff, _mm_srli_epi64(maxabsdiff, 32));
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maxabsdiff = _mm_max_epi16(maxabsdiff, _mm_srli_epi64(maxabsdiff, 16));
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*max = _mm_extract_epi16(maxabsdiff, 0);
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minabsdiff = _mm_min_epi16(minabsdiff, _mm_srli_si128(minabsdiff, 8));
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minabsdiff = _mm_min_epi16(minabsdiff, _mm_srli_epi64(minabsdiff, 32));
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minabsdiff = _mm_min_epi16(minabsdiff, _mm_srli_epi64(minabsdiff, 16));
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*min = _mm_extract_epi16(minabsdiff, 0);
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}
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unsigned int vp9_avg_8x8_sse2(const uint8_t *s, int p) {
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__m128i s0, s1, u0;
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unsigned int avg = 0;
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u0 = _mm_setzero_si128();
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s)), u0);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 2 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 3 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 4 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 5 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 6 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 7 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s0 = _mm_adds_epu16(s0, _mm_srli_si128(s0, 8));
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s0 = _mm_adds_epu16(s0, _mm_srli_epi64(s0, 32));
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s0 = _mm_adds_epu16(s0, _mm_srli_epi64(s0, 16));
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avg = _mm_extract_epi16(s0, 0);
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return (avg + 32) >> 6;
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}
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unsigned int vp9_avg_4x4_sse2(const uint8_t *s, int p) {
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__m128i s0, s1, u0;
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unsigned int avg = 0;
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u0 = _mm_setzero_si128();
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s)), u0);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 2 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 3 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s0 = _mm_adds_epu16(s0, _mm_srli_si128(s0, 4));
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s0 = _mm_adds_epu16(s0, _mm_srli_epi64(s0, 16));
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avg = _mm_extract_epi16(s0, 0);
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return (avg + 8) >> 4;
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}
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static void hadamard_col8_sse2(__m128i *in, int iter) {
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__m128i a0 = in[0];
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__m128i a1 = in[1];
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__m128i a2 = in[2];
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__m128i a3 = in[3];
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__m128i a4 = in[4];
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__m128i a5 = in[5];
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__m128i a6 = in[6];
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__m128i a7 = in[7];
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__m128i b0 = _mm_add_epi16(a0, a1);
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__m128i b1 = _mm_sub_epi16(a0, a1);
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__m128i b2 = _mm_add_epi16(a2, a3);
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__m128i b3 = _mm_sub_epi16(a2, a3);
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__m128i b4 = _mm_add_epi16(a4, a5);
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__m128i b5 = _mm_sub_epi16(a4, a5);
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__m128i b6 = _mm_add_epi16(a6, a7);
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__m128i b7 = _mm_sub_epi16(a6, a7);
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a0 = _mm_add_epi16(b0, b2);
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a1 = _mm_add_epi16(b1, b3);
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a2 = _mm_sub_epi16(b0, b2);
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a3 = _mm_sub_epi16(b1, b3);
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a4 = _mm_add_epi16(b4, b6);
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a5 = _mm_add_epi16(b5, b7);
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a6 = _mm_sub_epi16(b4, b6);
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a7 = _mm_sub_epi16(b5, b7);
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if (iter == 0) {
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b0 = _mm_add_epi16(a0, a4);
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b7 = _mm_add_epi16(a1, a5);
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b3 = _mm_add_epi16(a2, a6);
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b4 = _mm_add_epi16(a3, a7);
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b2 = _mm_sub_epi16(a0, a4);
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b6 = _mm_sub_epi16(a1, a5);
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b1 = _mm_sub_epi16(a2, a6);
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b5 = _mm_sub_epi16(a3, a7);
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a0 = _mm_unpacklo_epi16(b0, b1);
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a1 = _mm_unpacklo_epi16(b2, b3);
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a2 = _mm_unpackhi_epi16(b0, b1);
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a3 = _mm_unpackhi_epi16(b2, b3);
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a4 = _mm_unpacklo_epi16(b4, b5);
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a5 = _mm_unpacklo_epi16(b6, b7);
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a6 = _mm_unpackhi_epi16(b4, b5);
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a7 = _mm_unpackhi_epi16(b6, b7);
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b0 = _mm_unpacklo_epi32(a0, a1);
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b1 = _mm_unpacklo_epi32(a4, a5);
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b2 = _mm_unpackhi_epi32(a0, a1);
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b3 = _mm_unpackhi_epi32(a4, a5);
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b4 = _mm_unpacklo_epi32(a2, a3);
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b5 = _mm_unpacklo_epi32(a6, a7);
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b6 = _mm_unpackhi_epi32(a2, a3);
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b7 = _mm_unpackhi_epi32(a6, a7);
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in[0] = _mm_unpacklo_epi64(b0, b1);
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in[1] = _mm_unpackhi_epi64(b0, b1);
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in[2] = _mm_unpacklo_epi64(b2, b3);
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in[3] = _mm_unpackhi_epi64(b2, b3);
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in[4] = _mm_unpacklo_epi64(b4, b5);
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in[5] = _mm_unpackhi_epi64(b4, b5);
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in[6] = _mm_unpacklo_epi64(b6, b7);
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in[7] = _mm_unpackhi_epi64(b6, b7);
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} else {
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in[0] = _mm_add_epi16(a0, a4);
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in[7] = _mm_add_epi16(a1, a5);
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in[3] = _mm_add_epi16(a2, a6);
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in[4] = _mm_add_epi16(a3, a7);
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in[2] = _mm_sub_epi16(a0, a4);
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in[6] = _mm_sub_epi16(a1, a5);
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in[1] = _mm_sub_epi16(a2, a6);
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in[5] = _mm_sub_epi16(a3, a7);
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}
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}
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void vp9_hadamard_8x8_sse2(int16_t const *src_diff, int src_stride,
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int16_t *coeff) {
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__m128i src[8];
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src[0] = _mm_load_si128((const __m128i *)src_diff);
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src[1] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[2] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[3] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[4] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[5] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[6] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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src[7] = _mm_load_si128((const __m128i *)(src_diff += src_stride));
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hadamard_col8_sse2(src, 0);
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hadamard_col8_sse2(src, 1);
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_mm_store_si128((__m128i *)coeff, src[0]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[1]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[2]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[3]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[4]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[5]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[6]);
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coeff += 8;
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_mm_store_si128((__m128i *)coeff, src[7]);
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}
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void vp9_hadamard_16x16_sse2(int16_t const *src_diff, int src_stride,
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int16_t *coeff) {
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int idx;
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for (idx = 0; idx < 4; ++idx) {
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int16_t const *src_ptr = src_diff + (idx >> 1) * 8 * src_stride
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+ (idx & 0x01) * 8;
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vp9_hadamard_8x8_sse2(src_ptr, src_stride, coeff + idx * 64);
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}
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for (idx = 0; idx < 64; idx += 8) {
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__m128i coeff0 = _mm_load_si128((const __m128i *)coeff);
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__m128i coeff1 = _mm_load_si128((const __m128i *)(coeff + 64));
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__m128i coeff2 = _mm_load_si128((const __m128i *)(coeff + 128));
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__m128i coeff3 = _mm_load_si128((const __m128i *)(coeff + 192));
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__m128i b0 = _mm_add_epi16(coeff0, coeff1);
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__m128i b1 = _mm_sub_epi16(coeff0, coeff1);
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__m128i b2 = _mm_add_epi16(coeff2, coeff3);
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__m128i b3 = _mm_sub_epi16(coeff2, coeff3);
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b0 = _mm_srai_epi16(b0, 1);
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b1 = _mm_srai_epi16(b1, 1);
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b2 = _mm_srai_epi16(b2, 1);
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b3 = _mm_srai_epi16(b3, 1);
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coeff0 = _mm_add_epi16(b0, b2);
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coeff1 = _mm_add_epi16(b1, b3);
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_mm_store_si128((__m128i *)coeff, coeff0);
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_mm_store_si128((__m128i *)(coeff + 64), coeff1);
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coeff2 = _mm_sub_epi16(b0, b2);
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coeff3 = _mm_sub_epi16(b1, b3);
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_mm_store_si128((__m128i *)(coeff + 128), coeff2);
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_mm_store_si128((__m128i *)(coeff + 192), coeff3);
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coeff += 8;
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}
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}
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int16_t vp9_satd_sse2(const int16_t *coeff, int length) {
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int i;
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__m128i sum = _mm_load_si128((const __m128i *)coeff);
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__m128i sign = _mm_srai_epi16(sum, 15);
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__m128i val = _mm_xor_si128(sum, sign);
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sum = _mm_sub_epi16(val, sign);
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coeff += 8;
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for (i = 8; i < length; i += 8) {
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__m128i src_line = _mm_load_si128((const __m128i *)coeff);
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sign = _mm_srai_epi16(src_line, 15);
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val = _mm_xor_si128(src_line, sign);
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val = _mm_sub_epi16(val, sign);
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sum = _mm_add_epi16(sum, val);
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coeff += 8;
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}
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val = _mm_srli_si128(sum, 8);
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sum = _mm_add_epi16(sum, val);
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val = _mm_srli_epi64(sum, 32);
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sum = _mm_add_epi16(sum, val);
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val = _mm_srli_epi32(sum, 16);
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sum = _mm_add_epi16(sum, val);
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return _mm_extract_epi16(sum, 0);
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}
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void vp9_int_pro_row_sse2(int16_t *hbuf, uint8_t const*ref,
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const int ref_stride, const int height) {
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int idx;
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__m128i zero = _mm_setzero_si128();
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__m128i src_line = _mm_loadu_si128((const __m128i *)ref);
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__m128i s0 = _mm_unpacklo_epi8(src_line, zero);
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__m128i s1 = _mm_unpackhi_epi8(src_line, zero);
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__m128i t0, t1;
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int height_1 = height - 1;
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ref += ref_stride;
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for (idx = 1; idx < height_1; idx += 2) {
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src_line = _mm_loadu_si128((const __m128i *)ref);
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t0 = _mm_unpacklo_epi8(src_line, zero);
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t1 = _mm_unpackhi_epi8(src_line, zero);
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s0 = _mm_adds_epu16(s0, t0);
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s1 = _mm_adds_epu16(s1, t1);
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ref += ref_stride;
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src_line = _mm_loadu_si128((const __m128i *)ref);
|
|
t0 = _mm_unpacklo_epi8(src_line, zero);
|
|
t1 = _mm_unpackhi_epi8(src_line, zero);
|
|
s0 = _mm_adds_epu16(s0, t0);
|
|
s1 = _mm_adds_epu16(s1, t1);
|
|
ref += ref_stride;
|
|
}
|
|
|
|
src_line = _mm_loadu_si128((const __m128i *)ref);
|
|
t0 = _mm_unpacklo_epi8(src_line, zero);
|
|
t1 = _mm_unpackhi_epi8(src_line, zero);
|
|
s0 = _mm_adds_epu16(s0, t0);
|
|
s1 = _mm_adds_epu16(s1, t1);
|
|
|
|
if (height == 64) {
|
|
s0 = _mm_srai_epi16(s0, 5);
|
|
s1 = _mm_srai_epi16(s1, 5);
|
|
} else if (height == 32) {
|
|
s0 = _mm_srai_epi16(s0, 4);
|
|
s1 = _mm_srai_epi16(s1, 4);
|
|
} else {
|
|
s0 = _mm_srai_epi16(s0, 3);
|
|
s1 = _mm_srai_epi16(s1, 3);
|
|
}
|
|
|
|
_mm_storeu_si128((__m128i *)hbuf, s0);
|
|
hbuf += 8;
|
|
_mm_storeu_si128((__m128i *)hbuf, s1);
|
|
}
|
|
|
|
int16_t vp9_int_pro_col_sse2(uint8_t const *ref, const int width) {
|
|
__m128i zero = _mm_setzero_si128();
|
|
__m128i src_line = _mm_load_si128((const __m128i *)ref);
|
|
__m128i s0 = _mm_sad_epu8(src_line, zero);
|
|
__m128i s1;
|
|
int i;
|
|
|
|
for (i = 16; i < width; i += 16) {
|
|
ref += 16;
|
|
src_line = _mm_load_si128((const __m128i *)ref);
|
|
s1 = _mm_sad_epu8(src_line, zero);
|
|
s0 = _mm_adds_epu16(s0, s1);
|
|
}
|
|
|
|
s1 = _mm_srli_si128(s0, 8);
|
|
s0 = _mm_adds_epu16(s0, s1);
|
|
|
|
return _mm_extract_epi16(s0, 0);
|
|
}
|
|
|
|
int vp9_vector_var_sse2(int16_t const *ref, int16_t const *src,
|
|
const int bwl) {
|
|
int idx;
|
|
int width = 4 << bwl;
|
|
int16_t mean;
|
|
__m128i v0 = _mm_loadu_si128((const __m128i *)ref);
|
|
__m128i v1 = _mm_load_si128((const __m128i *)src);
|
|
__m128i diff = _mm_subs_epi16(v0, v1);
|
|
__m128i sum = diff;
|
|
__m128i sse = _mm_madd_epi16(diff, diff);
|
|
|
|
ref += 8;
|
|
src += 8;
|
|
|
|
for (idx = 8; idx < width; idx += 8) {
|
|
v0 = _mm_loadu_si128((const __m128i *)ref);
|
|
v1 = _mm_load_si128((const __m128i *)src);
|
|
diff = _mm_subs_epi16(v0, v1);
|
|
|
|
sum = _mm_add_epi16(sum, diff);
|
|
v0 = _mm_madd_epi16(diff, diff);
|
|
sse = _mm_add_epi32(sse, v0);
|
|
|
|
ref += 8;
|
|
src += 8;
|
|
}
|
|
|
|
v0 = _mm_srli_si128(sum, 8);
|
|
sum = _mm_add_epi16(sum, v0);
|
|
v0 = _mm_srli_epi64(sum, 32);
|
|
sum = _mm_add_epi16(sum, v0);
|
|
v0 = _mm_srli_epi32(sum, 16);
|
|
sum = _mm_add_epi16(sum, v0);
|
|
|
|
v1 = _mm_srli_si128(sse, 8);
|
|
sse = _mm_add_epi32(sse, v1);
|
|
v1 = _mm_srli_epi64(sse, 32);
|
|
sse = _mm_add_epi32(sse, v1);
|
|
|
|
mean = _mm_extract_epi16(sum, 0);
|
|
|
|
return _mm_cvtsi128_si32(sse) - ((mean * mean) >> (bwl + 2));
|
|
}
|