-Added ability to convert xml and tscn scenes to binary on export, makes loading of larger scenes faster
1483 lines
57 KiB
C
1483 lines
57 KiB
C
// Copyright 2011 Google Inc. 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 COPYING 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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//
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// SSE2 version of speed-critical encoding functions.
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//
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// Author: Christian Duvivier (cduvivier@google.com)
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#include "./dsp.h"
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#if defined(WEBP_USE_SSE2)
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#include <stdlib.h> // for abs()
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#include <emmintrin.h>
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#include "../enc/cost.h"
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#include "../enc/vp8enci.h"
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#include "../utils/utils.h"
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//------------------------------------------------------------------------------
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// Quite useful macro for debugging. Left here for convenience.
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#if 0
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#include <stdio.h>
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static void PrintReg(const __m128i r, const char* const name, int size) {
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int n;
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union {
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__m128i r;
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uint8_t i8[16];
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uint16_t i16[8];
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uint32_t i32[4];
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uint64_t i64[2];
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} tmp;
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tmp.r = r;
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fprintf(stderr, "%s\t: ", name);
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if (size == 8) {
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for (n = 0; n < 16; ++n) fprintf(stderr, "%.2x ", tmp.i8[n]);
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} else if (size == 16) {
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for (n = 0; n < 8; ++n) fprintf(stderr, "%.4x ", tmp.i16[n]);
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} else if (size == 32) {
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for (n = 0; n < 4; ++n) fprintf(stderr, "%.8x ", tmp.i32[n]);
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} else {
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for (n = 0; n < 2; ++n) fprintf(stderr, "%.16lx ", tmp.i64[n]);
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}
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fprintf(stderr, "\n");
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}
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#endif
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//------------------------------------------------------------------------------
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// util for unaligned loads.
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// memcpy() is the safe way of moving potentially unaligned 32b memory.
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static WEBP_INLINE uint32_t MemToUint32(const uint8_t* const ptr) {
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uint32_t A;
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memcpy(&A, (const int*)ptr, sizeof(A));
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return A;
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}
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//------------------------------------------------------------------------------
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// Transforms (Paragraph 14.4)
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// Does one or two inverse transforms.
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static void ITransform(const uint8_t* ref, const int16_t* in, uint8_t* dst,
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int do_two) {
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// This implementation makes use of 16-bit fixed point versions of two
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// multiply constants:
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// K1 = sqrt(2) * cos (pi/8) ~= 85627 / 2^16
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// K2 = sqrt(2) * sin (pi/8) ~= 35468 / 2^16
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//
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// To be able to use signed 16-bit integers, we use the following trick to
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// have constants within range:
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// - Associated constants are obtained by subtracting the 16-bit fixed point
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// version of one:
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// k = K - (1 << 16) => K = k + (1 << 16)
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// K1 = 85267 => k1 = 20091
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// K2 = 35468 => k2 = -30068
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// - The multiplication of a variable by a constant become the sum of the
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// variable and the multiplication of that variable by the associated
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// constant:
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// (x * K) >> 16 = (x * (k + (1 << 16))) >> 16 = ((x * k ) >> 16) + x
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const __m128i k1 = _mm_set1_epi16(20091);
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const __m128i k2 = _mm_set1_epi16(-30068);
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__m128i T0, T1, T2, T3;
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// Load and concatenate the transform coefficients (we'll do two inverse
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// transforms in parallel). In the case of only one inverse transform, the
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// second half of the vectors will just contain random value we'll never
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// use nor store.
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__m128i in0, in1, in2, in3;
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{
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in0 = _mm_loadl_epi64((const __m128i*)&in[0]);
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in1 = _mm_loadl_epi64((const __m128i*)&in[4]);
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in2 = _mm_loadl_epi64((const __m128i*)&in[8]);
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in3 = _mm_loadl_epi64((const __m128i*)&in[12]);
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// a00 a10 a20 a30 x x x x
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// a01 a11 a21 a31 x x x x
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// a02 a12 a22 a32 x x x x
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// a03 a13 a23 a33 x x x x
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if (do_two) {
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const __m128i inB0 = _mm_loadl_epi64((const __m128i*)&in[16]);
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const __m128i inB1 = _mm_loadl_epi64((const __m128i*)&in[20]);
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const __m128i inB2 = _mm_loadl_epi64((const __m128i*)&in[24]);
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const __m128i inB3 = _mm_loadl_epi64((const __m128i*)&in[28]);
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in0 = _mm_unpacklo_epi64(in0, inB0);
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in1 = _mm_unpacklo_epi64(in1, inB1);
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in2 = _mm_unpacklo_epi64(in2, inB2);
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in3 = _mm_unpacklo_epi64(in3, inB3);
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// a00 a10 a20 a30 b00 b10 b20 b30
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// a01 a11 a21 a31 b01 b11 b21 b31
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// a02 a12 a22 a32 b02 b12 b22 b32
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// a03 a13 a23 a33 b03 b13 b23 b33
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}
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}
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// Vertical pass and subsequent transpose.
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{
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// First pass, c and d calculations are longer because of the "trick"
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// multiplications.
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const __m128i a = _mm_add_epi16(in0, in2);
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const __m128i b = _mm_sub_epi16(in0, in2);
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// c = MUL(in1, K2) - MUL(in3, K1) = MUL(in1, k2) - MUL(in3, k1) + in1 - in3
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const __m128i c1 = _mm_mulhi_epi16(in1, k2);
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const __m128i c2 = _mm_mulhi_epi16(in3, k1);
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const __m128i c3 = _mm_sub_epi16(in1, in3);
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const __m128i c4 = _mm_sub_epi16(c1, c2);
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const __m128i c = _mm_add_epi16(c3, c4);
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// d = MUL(in1, K1) + MUL(in3, K2) = MUL(in1, k1) + MUL(in3, k2) + in1 + in3
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const __m128i d1 = _mm_mulhi_epi16(in1, k1);
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const __m128i d2 = _mm_mulhi_epi16(in3, k2);
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const __m128i d3 = _mm_add_epi16(in1, in3);
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const __m128i d4 = _mm_add_epi16(d1, d2);
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const __m128i d = _mm_add_epi16(d3, d4);
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// Second pass.
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const __m128i tmp0 = _mm_add_epi16(a, d);
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const __m128i tmp1 = _mm_add_epi16(b, c);
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const __m128i tmp2 = _mm_sub_epi16(b, c);
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const __m128i tmp3 = _mm_sub_epi16(a, d);
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// Transpose the two 4x4.
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// a00 a01 a02 a03 b00 b01 b02 b03
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// a10 a11 a12 a13 b10 b11 b12 b13
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// a20 a21 a22 a23 b20 b21 b22 b23
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// a30 a31 a32 a33 b30 b31 b32 b33
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const __m128i transpose0_0 = _mm_unpacklo_epi16(tmp0, tmp1);
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const __m128i transpose0_1 = _mm_unpacklo_epi16(tmp2, tmp3);
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const __m128i transpose0_2 = _mm_unpackhi_epi16(tmp0, tmp1);
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const __m128i transpose0_3 = _mm_unpackhi_epi16(tmp2, tmp3);
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// a00 a10 a01 a11 a02 a12 a03 a13
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// a20 a30 a21 a31 a22 a32 a23 a33
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// b00 b10 b01 b11 b02 b12 b03 b13
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// b20 b30 b21 b31 b22 b32 b23 b33
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const __m128i transpose1_0 = _mm_unpacklo_epi32(transpose0_0, transpose0_1);
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const __m128i transpose1_1 = _mm_unpacklo_epi32(transpose0_2, transpose0_3);
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const __m128i transpose1_2 = _mm_unpackhi_epi32(transpose0_0, transpose0_1);
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const __m128i transpose1_3 = _mm_unpackhi_epi32(transpose0_2, transpose0_3);
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// a00 a10 a20 a30 a01 a11 a21 a31
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// b00 b10 b20 b30 b01 b11 b21 b31
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// a02 a12 a22 a32 a03 a13 a23 a33
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// b02 b12 a22 b32 b03 b13 b23 b33
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T0 = _mm_unpacklo_epi64(transpose1_0, transpose1_1);
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T1 = _mm_unpackhi_epi64(transpose1_0, transpose1_1);
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T2 = _mm_unpacklo_epi64(transpose1_2, transpose1_3);
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T3 = _mm_unpackhi_epi64(transpose1_2, transpose1_3);
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// a00 a10 a20 a30 b00 b10 b20 b30
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// a01 a11 a21 a31 b01 b11 b21 b31
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// a02 a12 a22 a32 b02 b12 b22 b32
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// a03 a13 a23 a33 b03 b13 b23 b33
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}
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// Horizontal pass and subsequent transpose.
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{
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// First pass, c and d calculations are longer because of the "trick"
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// multiplications.
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const __m128i four = _mm_set1_epi16(4);
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const __m128i dc = _mm_add_epi16(T0, four);
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const __m128i a = _mm_add_epi16(dc, T2);
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const __m128i b = _mm_sub_epi16(dc, T2);
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// c = MUL(T1, K2) - MUL(T3, K1) = MUL(T1, k2) - MUL(T3, k1) + T1 - T3
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const __m128i c1 = _mm_mulhi_epi16(T1, k2);
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const __m128i c2 = _mm_mulhi_epi16(T3, k1);
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const __m128i c3 = _mm_sub_epi16(T1, T3);
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const __m128i c4 = _mm_sub_epi16(c1, c2);
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const __m128i c = _mm_add_epi16(c3, c4);
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// d = MUL(T1, K1) + MUL(T3, K2) = MUL(T1, k1) + MUL(T3, k2) + T1 + T3
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const __m128i d1 = _mm_mulhi_epi16(T1, k1);
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const __m128i d2 = _mm_mulhi_epi16(T3, k2);
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const __m128i d3 = _mm_add_epi16(T1, T3);
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const __m128i d4 = _mm_add_epi16(d1, d2);
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const __m128i d = _mm_add_epi16(d3, d4);
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// Second pass.
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const __m128i tmp0 = _mm_add_epi16(a, d);
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const __m128i tmp1 = _mm_add_epi16(b, c);
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const __m128i tmp2 = _mm_sub_epi16(b, c);
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const __m128i tmp3 = _mm_sub_epi16(a, d);
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const __m128i shifted0 = _mm_srai_epi16(tmp0, 3);
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const __m128i shifted1 = _mm_srai_epi16(tmp1, 3);
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const __m128i shifted2 = _mm_srai_epi16(tmp2, 3);
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const __m128i shifted3 = _mm_srai_epi16(tmp3, 3);
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// Transpose the two 4x4.
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// a00 a01 a02 a03 b00 b01 b02 b03
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// a10 a11 a12 a13 b10 b11 b12 b13
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// a20 a21 a22 a23 b20 b21 b22 b23
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// a30 a31 a32 a33 b30 b31 b32 b33
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const __m128i transpose0_0 = _mm_unpacklo_epi16(shifted0, shifted1);
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const __m128i transpose0_1 = _mm_unpacklo_epi16(shifted2, shifted3);
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const __m128i transpose0_2 = _mm_unpackhi_epi16(shifted0, shifted1);
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const __m128i transpose0_3 = _mm_unpackhi_epi16(shifted2, shifted3);
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// a00 a10 a01 a11 a02 a12 a03 a13
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// a20 a30 a21 a31 a22 a32 a23 a33
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// b00 b10 b01 b11 b02 b12 b03 b13
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// b20 b30 b21 b31 b22 b32 b23 b33
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const __m128i transpose1_0 = _mm_unpacklo_epi32(transpose0_0, transpose0_1);
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const __m128i transpose1_1 = _mm_unpacklo_epi32(transpose0_2, transpose0_3);
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const __m128i transpose1_2 = _mm_unpackhi_epi32(transpose0_0, transpose0_1);
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const __m128i transpose1_3 = _mm_unpackhi_epi32(transpose0_2, transpose0_3);
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// a00 a10 a20 a30 a01 a11 a21 a31
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// b00 b10 b20 b30 b01 b11 b21 b31
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// a02 a12 a22 a32 a03 a13 a23 a33
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// b02 b12 a22 b32 b03 b13 b23 b33
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T0 = _mm_unpacklo_epi64(transpose1_0, transpose1_1);
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T1 = _mm_unpackhi_epi64(transpose1_0, transpose1_1);
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T2 = _mm_unpacklo_epi64(transpose1_2, transpose1_3);
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T3 = _mm_unpackhi_epi64(transpose1_2, transpose1_3);
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// a00 a10 a20 a30 b00 b10 b20 b30
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// a01 a11 a21 a31 b01 b11 b21 b31
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// a02 a12 a22 a32 b02 b12 b22 b32
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// a03 a13 a23 a33 b03 b13 b23 b33
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}
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// Add inverse transform to 'ref' and store.
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{
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const __m128i zero = _mm_setzero_si128();
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// Load the reference(s).
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__m128i ref0, ref1, ref2, ref3;
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if (do_two) {
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// Load eight bytes/pixels per line.
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ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]);
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ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]);
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ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]);
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ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]);
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} else {
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// Load four bytes/pixels per line.
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ref0 = _mm_cvtsi32_si128(MemToUint32(&ref[0 * BPS]));
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ref1 = _mm_cvtsi32_si128(MemToUint32(&ref[1 * BPS]));
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ref2 = _mm_cvtsi32_si128(MemToUint32(&ref[2 * BPS]));
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ref3 = _mm_cvtsi32_si128(MemToUint32(&ref[3 * BPS]));
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}
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// Convert to 16b.
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ref0 = _mm_unpacklo_epi8(ref0, zero);
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ref1 = _mm_unpacklo_epi8(ref1, zero);
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ref2 = _mm_unpacklo_epi8(ref2, zero);
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ref3 = _mm_unpacklo_epi8(ref3, zero);
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// Add the inverse transform(s).
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ref0 = _mm_add_epi16(ref0, T0);
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ref1 = _mm_add_epi16(ref1, T1);
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ref2 = _mm_add_epi16(ref2, T2);
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ref3 = _mm_add_epi16(ref3, T3);
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// Unsigned saturate to 8b.
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ref0 = _mm_packus_epi16(ref0, ref0);
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ref1 = _mm_packus_epi16(ref1, ref1);
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ref2 = _mm_packus_epi16(ref2, ref2);
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ref3 = _mm_packus_epi16(ref3, ref3);
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// Store the results.
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if (do_two) {
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// Store eight bytes/pixels per line.
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_mm_storel_epi64((__m128i*)&dst[0 * BPS], ref0);
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_mm_storel_epi64((__m128i*)&dst[1 * BPS], ref1);
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_mm_storel_epi64((__m128i*)&dst[2 * BPS], ref2);
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_mm_storel_epi64((__m128i*)&dst[3 * BPS], ref3);
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} else {
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// Store four bytes/pixels per line.
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*((int32_t *)&dst[0 * BPS]) = _mm_cvtsi128_si32(ref0);
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*((int32_t *)&dst[1 * BPS]) = _mm_cvtsi128_si32(ref1);
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*((int32_t *)&dst[2 * BPS]) = _mm_cvtsi128_si32(ref2);
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*((int32_t *)&dst[3 * BPS]) = _mm_cvtsi128_si32(ref3);
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}
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}
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}
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static void FTransformPass1(const __m128i* const in01,
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const __m128i* const in23,
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__m128i* const out01,
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__m128i* const out32) {
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const __m128i k937 = _mm_set1_epi32(937);
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const __m128i k1812 = _mm_set1_epi32(1812);
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const __m128i k88p = _mm_set_epi16(8, 8, 8, 8, 8, 8, 8, 8);
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const __m128i k88m = _mm_set_epi16(-8, 8, -8, 8, -8, 8, -8, 8);
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const __m128i k5352_2217p = _mm_set_epi16(2217, 5352, 2217, 5352,
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2217, 5352, 2217, 5352);
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const __m128i k5352_2217m = _mm_set_epi16(-5352, 2217, -5352, 2217,
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-5352, 2217, -5352, 2217);
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// *in01 = 00 01 10 11 02 03 12 13
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// *in23 = 20 21 30 31 22 23 32 33
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const __m128i shuf01_p = _mm_shufflehi_epi16(*in01, _MM_SHUFFLE(2, 3, 0, 1));
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const __m128i shuf23_p = _mm_shufflehi_epi16(*in23, _MM_SHUFFLE(2, 3, 0, 1));
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// 00 01 10 11 03 02 13 12
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// 20 21 30 31 23 22 33 32
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const __m128i s01 = _mm_unpacklo_epi64(shuf01_p, shuf23_p);
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const __m128i s32 = _mm_unpackhi_epi64(shuf01_p, shuf23_p);
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// 00 01 10 11 20 21 30 31
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// 03 02 13 12 23 22 33 32
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const __m128i a01 = _mm_add_epi16(s01, s32);
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const __m128i a32 = _mm_sub_epi16(s01, s32);
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// [d0 + d3 | d1 + d2 | ...] = [a0 a1 | a0' a1' | ... ]
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// [d0 - d3 | d1 - d2 | ...] = [a3 a2 | a3' a2' | ... ]
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const __m128i tmp0 = _mm_madd_epi16(a01, k88p); // [ (a0 + a1) << 3, ... ]
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const __m128i tmp2 = _mm_madd_epi16(a01, k88m); // [ (a0 - a1) << 3, ... ]
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const __m128i tmp1_1 = _mm_madd_epi16(a32, k5352_2217p);
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const __m128i tmp3_1 = _mm_madd_epi16(a32, k5352_2217m);
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const __m128i tmp1_2 = _mm_add_epi32(tmp1_1, k1812);
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const __m128i tmp3_2 = _mm_add_epi32(tmp3_1, k937);
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const __m128i tmp1 = _mm_srai_epi32(tmp1_2, 9);
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const __m128i tmp3 = _mm_srai_epi32(tmp3_2, 9);
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const __m128i s03 = _mm_packs_epi32(tmp0, tmp2);
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const __m128i s12 = _mm_packs_epi32(tmp1, tmp3);
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const __m128i s_lo = _mm_unpacklo_epi16(s03, s12); // 0 1 0 1 0 1...
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const __m128i s_hi = _mm_unpackhi_epi16(s03, s12); // 2 3 2 3 2 3
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const __m128i v23 = _mm_unpackhi_epi32(s_lo, s_hi);
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*out01 = _mm_unpacklo_epi32(s_lo, s_hi);
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*out32 = _mm_shuffle_epi32(v23, _MM_SHUFFLE(1, 0, 3, 2)); // 3 2 3 2 3 2..
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}
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static void FTransformPass2(const __m128i* const v01, const __m128i* const v32,
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int16_t* out) {
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const __m128i zero = _mm_setzero_si128();
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const __m128i seven = _mm_set1_epi16(7);
|
|
const __m128i k5352_2217 = _mm_set_epi16(5352, 2217, 5352, 2217,
|
|
5352, 2217, 5352, 2217);
|
|
const __m128i k2217_5352 = _mm_set_epi16(2217, -5352, 2217, -5352,
|
|
2217, -5352, 2217, -5352);
|
|
const __m128i k12000_plus_one = _mm_set1_epi32(12000 + (1 << 16));
|
|
const __m128i k51000 = _mm_set1_epi32(51000);
|
|
|
|
// Same operations are done on the (0,3) and (1,2) pairs.
|
|
// a0 = v0 + v3
|
|
// a1 = v1 + v2
|
|
// a3 = v0 - v3
|
|
// a2 = v1 - v2
|
|
const __m128i a01 = _mm_add_epi16(*v01, *v32);
|
|
const __m128i a32 = _mm_sub_epi16(*v01, *v32);
|
|
const __m128i a11 = _mm_unpackhi_epi64(a01, a01);
|
|
const __m128i a22 = _mm_unpackhi_epi64(a32, a32);
|
|
const __m128i a01_plus_7 = _mm_add_epi16(a01, seven);
|
|
|
|
// d0 = (a0 + a1 + 7) >> 4;
|
|
// d2 = (a0 - a1 + 7) >> 4;
|
|
const __m128i c0 = _mm_add_epi16(a01_plus_7, a11);
|
|
const __m128i c2 = _mm_sub_epi16(a01_plus_7, a11);
|
|
const __m128i d0 = _mm_srai_epi16(c0, 4);
|
|
const __m128i d2 = _mm_srai_epi16(c2, 4);
|
|
|
|
// f1 = ((b3 * 5352 + b2 * 2217 + 12000) >> 16)
|
|
// f3 = ((b3 * 2217 - b2 * 5352 + 51000) >> 16)
|
|
const __m128i b23 = _mm_unpacklo_epi16(a22, a32);
|
|
const __m128i c1 = _mm_madd_epi16(b23, k5352_2217);
|
|
const __m128i c3 = _mm_madd_epi16(b23, k2217_5352);
|
|
const __m128i d1 = _mm_add_epi32(c1, k12000_plus_one);
|
|
const __m128i d3 = _mm_add_epi32(c3, k51000);
|
|
const __m128i e1 = _mm_srai_epi32(d1, 16);
|
|
const __m128i e3 = _mm_srai_epi32(d3, 16);
|
|
const __m128i f1 = _mm_packs_epi32(e1, e1);
|
|
const __m128i f3 = _mm_packs_epi32(e3, e3);
|
|
// f1 = f1 + (a3 != 0);
|
|
// The compare will return (0xffff, 0) for (==0, !=0). To turn that into the
|
|
// desired (0, 1), we add one earlier through k12000_plus_one.
|
|
// -> f1 = f1 + 1 - (a3 == 0)
|
|
const __m128i g1 = _mm_add_epi16(f1, _mm_cmpeq_epi16(a32, zero));
|
|
|
|
const __m128i d0_g1 = _mm_unpacklo_epi64(d0, g1);
|
|
const __m128i d2_f3 = _mm_unpacklo_epi64(d2, f3);
|
|
_mm_storeu_si128((__m128i*)&out[0], d0_g1);
|
|
_mm_storeu_si128((__m128i*)&out[8], d2_f3);
|
|
}
|
|
|
|
static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
|
|
// Load src and convert to 16b.
|
|
const __m128i src0 = _mm_loadl_epi64((const __m128i*)&src[0 * BPS]);
|
|
const __m128i src1 = _mm_loadl_epi64((const __m128i*)&src[1 * BPS]);
|
|
const __m128i src2 = _mm_loadl_epi64((const __m128i*)&src[2 * BPS]);
|
|
const __m128i src3 = _mm_loadl_epi64((const __m128i*)&src[3 * BPS]);
|
|
const __m128i src_0 = _mm_unpacklo_epi8(src0, zero);
|
|
const __m128i src_1 = _mm_unpacklo_epi8(src1, zero);
|
|
const __m128i src_2 = _mm_unpacklo_epi8(src2, zero);
|
|
const __m128i src_3 = _mm_unpacklo_epi8(src3, zero);
|
|
// Load ref and convert to 16b.
|
|
const __m128i ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]);
|
|
const __m128i ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]);
|
|
const __m128i ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]);
|
|
const __m128i ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]);
|
|
const __m128i ref_0 = _mm_unpacklo_epi8(ref0, zero);
|
|
const __m128i ref_1 = _mm_unpacklo_epi8(ref1, zero);
|
|
const __m128i ref_2 = _mm_unpacklo_epi8(ref2, zero);
|
|
const __m128i ref_3 = _mm_unpacklo_epi8(ref3, zero);
|
|
// Compute difference. -> 00 01 02 03 00 00 00 00
|
|
const __m128i diff0 = _mm_sub_epi16(src_0, ref_0);
|
|
const __m128i diff1 = _mm_sub_epi16(src_1, ref_1);
|
|
const __m128i diff2 = _mm_sub_epi16(src_2, ref_2);
|
|
const __m128i diff3 = _mm_sub_epi16(src_3, ref_3);
|
|
|
|
// Unpack and shuffle
|
|
// 00 01 02 03 0 0 0 0
|
|
// 10 11 12 13 0 0 0 0
|
|
// 20 21 22 23 0 0 0 0
|
|
// 30 31 32 33 0 0 0 0
|
|
const __m128i shuf01 = _mm_unpacklo_epi32(diff0, diff1);
|
|
const __m128i shuf23 = _mm_unpacklo_epi32(diff2, diff3);
|
|
__m128i v01, v32;
|
|
|
|
// First pass
|
|
FTransformPass1(&shuf01, &shuf23, &v01, &v32);
|
|
|
|
// Second pass
|
|
FTransformPass2(&v01, &v32, out);
|
|
}
|
|
|
|
static void FTransform2(const uint8_t* src, const uint8_t* ref, int16_t* out) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
|
|
// Load src and convert to 16b.
|
|
const __m128i src0 = _mm_loadl_epi64((const __m128i*)&src[0 * BPS]);
|
|
const __m128i src1 = _mm_loadl_epi64((const __m128i*)&src[1 * BPS]);
|
|
const __m128i src2 = _mm_loadl_epi64((const __m128i*)&src[2 * BPS]);
|
|
const __m128i src3 = _mm_loadl_epi64((const __m128i*)&src[3 * BPS]);
|
|
const __m128i src_0 = _mm_unpacklo_epi8(src0, zero);
|
|
const __m128i src_1 = _mm_unpacklo_epi8(src1, zero);
|
|
const __m128i src_2 = _mm_unpacklo_epi8(src2, zero);
|
|
const __m128i src_3 = _mm_unpacklo_epi8(src3, zero);
|
|
// Load ref and convert to 16b.
|
|
const __m128i ref0 = _mm_loadl_epi64((const __m128i*)&ref[0 * BPS]);
|
|
const __m128i ref1 = _mm_loadl_epi64((const __m128i*)&ref[1 * BPS]);
|
|
const __m128i ref2 = _mm_loadl_epi64((const __m128i*)&ref[2 * BPS]);
|
|
const __m128i ref3 = _mm_loadl_epi64((const __m128i*)&ref[3 * BPS]);
|
|
const __m128i ref_0 = _mm_unpacklo_epi8(ref0, zero);
|
|
const __m128i ref_1 = _mm_unpacklo_epi8(ref1, zero);
|
|
const __m128i ref_2 = _mm_unpacklo_epi8(ref2, zero);
|
|
const __m128i ref_3 = _mm_unpacklo_epi8(ref3, zero);
|
|
// Compute difference. -> 00 01 02 03 00' 01' 02' 03'
|
|
const __m128i diff0 = _mm_sub_epi16(src_0, ref_0);
|
|
const __m128i diff1 = _mm_sub_epi16(src_1, ref_1);
|
|
const __m128i diff2 = _mm_sub_epi16(src_2, ref_2);
|
|
const __m128i diff3 = _mm_sub_epi16(src_3, ref_3);
|
|
|
|
// Unpack and shuffle
|
|
// 00 01 02 03 0 0 0 0
|
|
// 10 11 12 13 0 0 0 0
|
|
// 20 21 22 23 0 0 0 0
|
|
// 30 31 32 33 0 0 0 0
|
|
const __m128i shuf01l = _mm_unpacklo_epi32(diff0, diff1);
|
|
const __m128i shuf23l = _mm_unpacklo_epi32(diff2, diff3);
|
|
const __m128i shuf01h = _mm_unpackhi_epi32(diff0, diff1);
|
|
const __m128i shuf23h = _mm_unpackhi_epi32(diff2, diff3);
|
|
__m128i v01l, v32l;
|
|
__m128i v01h, v32h;
|
|
|
|
// First pass
|
|
FTransformPass1(&shuf01l, &shuf23l, &v01l, &v32l);
|
|
FTransformPass1(&shuf01h, &shuf23h, &v01h, &v32h);
|
|
|
|
// Second pass
|
|
FTransformPass2(&v01l, &v32l, out + 0);
|
|
FTransformPass2(&v01h, &v32h, out + 16);
|
|
}
|
|
|
|
static void FTransformWHTRow(const int16_t* const in, __m128i* const out) {
|
|
const __m128i kMult1 = _mm_set_epi16(0, 0, 0, 0, 1, 1, 1, 1);
|
|
const __m128i kMult2 = _mm_set_epi16(0, 0, 0, 0, -1, 1, -1, 1);
|
|
const __m128i src0 = _mm_loadl_epi64((__m128i*)&in[0 * 16]);
|
|
const __m128i src1 = _mm_loadl_epi64((__m128i*)&in[1 * 16]);
|
|
const __m128i src2 = _mm_loadl_epi64((__m128i*)&in[2 * 16]);
|
|
const __m128i src3 = _mm_loadl_epi64((__m128i*)&in[3 * 16]);
|
|
const __m128i A01 = _mm_unpacklo_epi16(src0, src1); // A0 A1 | ...
|
|
const __m128i A23 = _mm_unpacklo_epi16(src2, src3); // A2 A3 | ...
|
|
const __m128i B0 = _mm_adds_epi16(A01, A23); // a0 | a1 | ...
|
|
const __m128i B1 = _mm_subs_epi16(A01, A23); // a3 | a2 | ...
|
|
const __m128i C0 = _mm_unpacklo_epi32(B0, B1); // a0 | a1 | a3 | a2
|
|
const __m128i C1 = _mm_unpacklo_epi32(B1, B0); // a3 | a2 | a0 | a1
|
|
const __m128i D0 = _mm_madd_epi16(C0, kMult1); // out0, out1
|
|
const __m128i D1 = _mm_madd_epi16(C1, kMult2); // out2, out3
|
|
*out = _mm_unpacklo_epi64(D0, D1);
|
|
}
|
|
|
|
static void FTransformWHT(const int16_t* in, int16_t* out) {
|
|
__m128i row0, row1, row2, row3;
|
|
FTransformWHTRow(in + 0 * 64, &row0);
|
|
FTransformWHTRow(in + 1 * 64, &row1);
|
|
FTransformWHTRow(in + 2 * 64, &row2);
|
|
FTransformWHTRow(in + 3 * 64, &row3);
|
|
|
|
{
|
|
const __m128i a0 = _mm_add_epi32(row0, row2);
|
|
const __m128i a1 = _mm_add_epi32(row1, row3);
|
|
const __m128i a2 = _mm_sub_epi32(row1, row3);
|
|
const __m128i a3 = _mm_sub_epi32(row0, row2);
|
|
const __m128i b0 = _mm_srai_epi32(_mm_add_epi32(a0, a1), 1);
|
|
const __m128i b1 = _mm_srai_epi32(_mm_add_epi32(a3, a2), 1);
|
|
const __m128i b2 = _mm_srai_epi32(_mm_sub_epi32(a3, a2), 1);
|
|
const __m128i b3 = _mm_srai_epi32(_mm_sub_epi32(a0, a1), 1);
|
|
const __m128i out0 = _mm_packs_epi32(b0, b1);
|
|
const __m128i out1 = _mm_packs_epi32(b2, b3);
|
|
_mm_storeu_si128((__m128i*)&out[0], out0);
|
|
_mm_storeu_si128((__m128i*)&out[8], out1);
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Compute susceptibility based on DCT-coeff histograms:
|
|
// the higher, the "easier" the macroblock is to compress.
|
|
|
|
static void CollectHistogram(const uint8_t* ref, const uint8_t* pred,
|
|
int start_block, int end_block,
|
|
VP8Histogram* const histo) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i max_coeff_thresh = _mm_set1_epi16(MAX_COEFF_THRESH);
|
|
int j;
|
|
int distribution[MAX_COEFF_THRESH + 1] = { 0 };
|
|
for (j = start_block; j < end_block; ++j) {
|
|
int16_t out[16];
|
|
int k;
|
|
|
|
FTransform(ref + VP8DspScan[j], pred + VP8DspScan[j], out);
|
|
|
|
// Convert coefficients to bin (within out[]).
|
|
{
|
|
// Load.
|
|
const __m128i out0 = _mm_loadu_si128((__m128i*)&out[0]);
|
|
const __m128i out1 = _mm_loadu_si128((__m128i*)&out[8]);
|
|
const __m128i d0 = _mm_sub_epi16(zero, out0);
|
|
const __m128i d1 = _mm_sub_epi16(zero, out1);
|
|
const __m128i abs0 = _mm_max_epi16(out0, d0); // abs(v), 16b
|
|
const __m128i abs1 = _mm_max_epi16(out1, d1);
|
|
// v = abs(out) >> 3
|
|
const __m128i v0 = _mm_srai_epi16(abs0, 3);
|
|
const __m128i v1 = _mm_srai_epi16(abs1, 3);
|
|
// bin = min(v, MAX_COEFF_THRESH)
|
|
const __m128i bin0 = _mm_min_epi16(v0, max_coeff_thresh);
|
|
const __m128i bin1 = _mm_min_epi16(v1, max_coeff_thresh);
|
|
// Store.
|
|
_mm_storeu_si128((__m128i*)&out[0], bin0);
|
|
_mm_storeu_si128((__m128i*)&out[8], bin1);
|
|
}
|
|
|
|
// Convert coefficients to bin.
|
|
for (k = 0; k < 16; ++k) {
|
|
++distribution[out[k]];
|
|
}
|
|
}
|
|
VP8SetHistogramData(distribution, histo);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Intra predictions
|
|
|
|
// helper for chroma-DC predictions
|
|
static WEBP_INLINE void Put8x8uv(uint8_t v, uint8_t* dst) {
|
|
int j;
|
|
const __m128i values = _mm_set1_epi8(v);
|
|
for (j = 0; j < 8; ++j) {
|
|
_mm_storel_epi64((__m128i*)(dst + j * BPS), values);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void Put16(uint8_t v, uint8_t* dst) {
|
|
int j;
|
|
const __m128i values = _mm_set1_epi8(v);
|
|
for (j = 0; j < 16; ++j) {
|
|
_mm_store_si128((__m128i*)(dst + j * BPS), values);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void Fill(uint8_t* dst, int value, int size) {
|
|
if (size == 4) {
|
|
int j;
|
|
for (j = 0; j < 4; ++j) {
|
|
memset(dst + j * BPS, value, 4);
|
|
}
|
|
} else if (size == 8) {
|
|
Put8x8uv(value, dst);
|
|
} else {
|
|
Put16(value, dst);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void VE8uv(uint8_t* dst, const uint8_t* top) {
|
|
int j;
|
|
const __m128i top_values = _mm_loadl_epi64((const __m128i*)top);
|
|
for (j = 0; j < 8; ++j) {
|
|
_mm_storel_epi64((__m128i*)(dst + j * BPS), top_values);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void VE16(uint8_t* dst, const uint8_t* top) {
|
|
const __m128i top_values = _mm_load_si128((const __m128i*)top);
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
_mm_store_si128((__m128i*)(dst + j * BPS), top_values);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void VerticalPred(uint8_t* dst,
|
|
const uint8_t* top, int size) {
|
|
if (top != NULL) {
|
|
if (size == 8) {
|
|
VE8uv(dst, top);
|
|
} else {
|
|
VE16(dst, top);
|
|
}
|
|
} else {
|
|
Fill(dst, 127, size);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void HE8uv(uint8_t* dst, const uint8_t* left) {
|
|
int j;
|
|
for (j = 0; j < 8; ++j) {
|
|
const __m128i values = _mm_set1_epi8(left[j]);
|
|
_mm_storel_epi64((__m128i*)dst, values);
|
|
dst += BPS;
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void HE16(uint8_t* dst, const uint8_t* left) {
|
|
int j;
|
|
for (j = 0; j < 16; ++j) {
|
|
const __m128i values = _mm_set1_epi8(left[j]);
|
|
_mm_store_si128((__m128i*)dst, values);
|
|
dst += BPS;
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void HorizontalPred(uint8_t* dst,
|
|
const uint8_t* left, int size) {
|
|
if (left != NULL) {
|
|
if (size == 8) {
|
|
HE8uv(dst, left);
|
|
} else {
|
|
HE16(dst, left);
|
|
}
|
|
} else {
|
|
Fill(dst, 129, size);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void TM(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top, int size) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
int y;
|
|
if (size == 8) {
|
|
const __m128i top_values = _mm_loadl_epi64((const __m128i*)top);
|
|
const __m128i top_base = _mm_unpacklo_epi8(top_values, zero);
|
|
for (y = 0; y < 8; ++y, dst += BPS) {
|
|
const int val = left[y] - left[-1];
|
|
const __m128i base = _mm_set1_epi16(val);
|
|
const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero);
|
|
_mm_storel_epi64((__m128i*)dst, out);
|
|
}
|
|
} else {
|
|
const __m128i top_values = _mm_load_si128((const __m128i*)top);
|
|
const __m128i top_base_0 = _mm_unpacklo_epi8(top_values, zero);
|
|
const __m128i top_base_1 = _mm_unpackhi_epi8(top_values, zero);
|
|
for (y = 0; y < 16; ++y, dst += BPS) {
|
|
const int val = left[y] - left[-1];
|
|
const __m128i base = _mm_set1_epi16(val);
|
|
const __m128i out_0 = _mm_add_epi16(base, top_base_0);
|
|
const __m128i out_1 = _mm_add_epi16(base, top_base_1);
|
|
const __m128i out = _mm_packus_epi16(out_0, out_1);
|
|
_mm_store_si128((__m128i*)dst, out);
|
|
}
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void TrueMotion(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top, int size) {
|
|
if (left != NULL) {
|
|
if (top != NULL) {
|
|
TM(dst, left, top, size);
|
|
} else {
|
|
HorizontalPred(dst, left, size);
|
|
}
|
|
} else {
|
|
// true motion without left samples (hence: with default 129 value)
|
|
// is equivalent to VE prediction where you just copy the top samples.
|
|
// Note that if top samples are not available, the default value is
|
|
// then 129, and not 127 as in the VerticalPred case.
|
|
if (top != NULL) {
|
|
VerticalPred(dst, top, size);
|
|
} else {
|
|
Fill(dst, 129, size);
|
|
}
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void DC8uv(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i top_values = _mm_loadl_epi64((const __m128i*)top);
|
|
const __m128i left_values = _mm_loadl_epi64((const __m128i*)left);
|
|
const __m128i sum_top = _mm_sad_epu8(top_values, zero);
|
|
const __m128i sum_left = _mm_sad_epu8(left_values, zero);
|
|
const int DC = _mm_cvtsi128_si32(sum_top) + _mm_cvtsi128_si32(sum_left) + 8;
|
|
Put8x8uv(DC >> 4, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC8uvNoLeft(uint8_t* dst, const uint8_t* top) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i top_values = _mm_loadl_epi64((const __m128i*)top);
|
|
const __m128i sum = _mm_sad_epu8(top_values, zero);
|
|
const int DC = _mm_cvtsi128_si32(sum) + 4;
|
|
Put8x8uv(DC >> 3, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC8uvNoTop(uint8_t* dst, const uint8_t* left) {
|
|
// 'left' is contiguous so we can reuse the top summation.
|
|
DC8uvNoLeft(dst, left);
|
|
}
|
|
|
|
static WEBP_INLINE void DC8uvNoTopLeft(uint8_t* dst) {
|
|
Put8x8uv(0x80, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC8uvMode(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top) {
|
|
if (top != NULL) {
|
|
if (left != NULL) { // top and left present
|
|
DC8uv(dst, left, top);
|
|
} else { // top, but no left
|
|
DC8uvNoLeft(dst, top);
|
|
}
|
|
} else if (left != NULL) { // left but no top
|
|
DC8uvNoTop(dst, left);
|
|
} else { // no top, no left, nothing.
|
|
DC8uvNoTopLeft(dst);
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void DC16(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i top_row = _mm_load_si128((const __m128i*)top);
|
|
const __m128i left_row = _mm_load_si128((const __m128i*)left);
|
|
const __m128i sad8x2 = _mm_sad_epu8(top_row, zero);
|
|
// sum the two sads: sad8x2[0:1] + sad8x2[8:9]
|
|
const __m128i sum_top = _mm_add_epi16(sad8x2, _mm_shuffle_epi32(sad8x2, 2));
|
|
const __m128i sad8x2_left = _mm_sad_epu8(left_row, zero);
|
|
// sum the two sads: sad8x2[0:1] + sad8x2[8:9]
|
|
const __m128i sum_left =
|
|
_mm_add_epi16(sad8x2_left, _mm_shuffle_epi32(sad8x2_left, 2));
|
|
const int DC = _mm_cvtsi128_si32(sum_top) + _mm_cvtsi128_si32(sum_left) + 16;
|
|
Put16(DC >> 5, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC16NoLeft(uint8_t* dst, const uint8_t* top) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i top_row = _mm_load_si128((const __m128i*)top);
|
|
const __m128i sad8x2 = _mm_sad_epu8(top_row, zero);
|
|
// sum the two sads: sad8x2[0:1] + sad8x2[8:9]
|
|
const __m128i sum = _mm_add_epi16(sad8x2, _mm_shuffle_epi32(sad8x2, 2));
|
|
const int DC = _mm_cvtsi128_si32(sum) + 8;
|
|
Put16(DC >> 4, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC16NoTop(uint8_t* dst, const uint8_t* left) {
|
|
// 'left' is contiguous so we can reuse the top summation.
|
|
DC16NoLeft(dst, left);
|
|
}
|
|
|
|
static WEBP_INLINE void DC16NoTopLeft(uint8_t* dst) {
|
|
Put16(0x80, dst);
|
|
}
|
|
|
|
static WEBP_INLINE void DC16Mode(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top) {
|
|
if (top != NULL) {
|
|
if (left != NULL) { // top and left present
|
|
DC16(dst, left, top);
|
|
} else { // top, but no left
|
|
DC16NoLeft(dst, top);
|
|
}
|
|
} else if (left != NULL) { // left but no top
|
|
DC16NoTop(dst, left);
|
|
} else { // no top, no left, nothing.
|
|
DC16NoTopLeft(dst);
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// 4x4 predictions
|
|
|
|
#define DST(x, y) dst[(x) + (y) * BPS]
|
|
#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
|
|
#define AVG2(a, b) (((a) + (b) + 1) >> 1)
|
|
|
|
// We use the following 8b-arithmetic tricks:
|
|
// (a + 2 * b + c + 2) >> 2 = (AC + b + 1) >> 1
|
|
// where: AC = (a + c) >> 1 = [(a + c + 1) >> 1] - [(a^c) & 1]
|
|
// and:
|
|
// (a + 2 * b + c + 2) >> 2 = (AB + BC + 1) >> 1 - (ab|bc)&lsb
|
|
// where: AC = (a + b + 1) >> 1, BC = (b + c + 1) >> 1
|
|
// and ab = a ^ b, bc = b ^ c, lsb = (AC^BC)&1
|
|
|
|
static WEBP_INLINE void VE4(uint8_t* dst, const uint8_t* top) { // vertical
|
|
const __m128i one = _mm_set1_epi8(1);
|
|
const __m128i ABCDEFGH = _mm_loadl_epi64((__m128i*)(top - 1));
|
|
const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1);
|
|
const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2);
|
|
const __m128i a = _mm_avg_epu8(ABCDEFGH, CDEFGH00);
|
|
const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGH00), one);
|
|
const __m128i b = _mm_subs_epu8(a, lsb);
|
|
const __m128i avg = _mm_avg_epu8(b, BCDEFGH0);
|
|
const uint32_t vals = _mm_cvtsi128_si32(avg);
|
|
int i;
|
|
for (i = 0; i < 4; ++i) {
|
|
*(uint32_t*)(dst + i * BPS) = vals;
|
|
}
|
|
}
|
|
|
|
static WEBP_INLINE void HE4(uint8_t* dst, const uint8_t* top) { // horizontal
|
|
const int X = top[-1];
|
|
const int I = top[-2];
|
|
const int J = top[-3];
|
|
const int K = top[-4];
|
|
const int L = top[-5];
|
|
*(uint32_t*)(dst + 0 * BPS) = 0x01010101U * AVG3(X, I, J);
|
|
*(uint32_t*)(dst + 1 * BPS) = 0x01010101U * AVG3(I, J, K);
|
|
*(uint32_t*)(dst + 2 * BPS) = 0x01010101U * AVG3(J, K, L);
|
|
*(uint32_t*)(dst + 3 * BPS) = 0x01010101U * AVG3(K, L, L);
|
|
}
|
|
|
|
static WEBP_INLINE void DC4(uint8_t* dst, const uint8_t* top) {
|
|
uint32_t dc = 4;
|
|
int i;
|
|
for (i = 0; i < 4; ++i) dc += top[i] + top[-5 + i];
|
|
Fill(dst, dc >> 3, 4);
|
|
}
|
|
|
|
static WEBP_INLINE void LD4(uint8_t* dst, const uint8_t* top) { // Down-Left
|
|
const __m128i one = _mm_set1_epi8(1);
|
|
const __m128i ABCDEFGH = _mm_loadl_epi64((const __m128i*)top);
|
|
const __m128i BCDEFGH0 = _mm_srli_si128(ABCDEFGH, 1);
|
|
const __m128i CDEFGH00 = _mm_srli_si128(ABCDEFGH, 2);
|
|
const __m128i CDEFGHH0 = _mm_insert_epi16(CDEFGH00, top[7], 3);
|
|
const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, CDEFGHH0);
|
|
const __m128i lsb = _mm_and_si128(_mm_xor_si128(ABCDEFGH, CDEFGHH0), one);
|
|
const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
|
|
const __m128i abcdefg = _mm_avg_epu8(avg2, BCDEFGH0);
|
|
*(uint32_t*)(dst + 0 * BPS) = _mm_cvtsi128_si32( abcdefg );
|
|
*(uint32_t*)(dst + 1 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1));
|
|
*(uint32_t*)(dst + 2 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2));
|
|
*(uint32_t*)(dst + 3 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3));
|
|
}
|
|
|
|
static WEBP_INLINE void VR4(uint8_t* dst,
|
|
const uint8_t* top) { // Vertical-Right
|
|
const __m128i one = _mm_set1_epi8(1);
|
|
const int I = top[-2];
|
|
const int J = top[-3];
|
|
const int K = top[-4];
|
|
const int X = top[-1];
|
|
const __m128i XABCD = _mm_loadl_epi64((const __m128i*)(top - 1));
|
|
const __m128i ABCD0 = _mm_srli_si128(XABCD, 1);
|
|
const __m128i abcd = _mm_avg_epu8(XABCD, ABCD0);
|
|
const __m128i _XABCD = _mm_slli_si128(XABCD, 1);
|
|
const __m128i IXABCD = _mm_insert_epi16(_XABCD, I | (X << 8), 0);
|
|
const __m128i avg1 = _mm_avg_epu8(IXABCD, ABCD0);
|
|
const __m128i lsb = _mm_and_si128(_mm_xor_si128(IXABCD, ABCD0), one);
|
|
const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
|
|
const __m128i efgh = _mm_avg_epu8(avg2, XABCD);
|
|
*(uint32_t*)(dst + 0 * BPS) = _mm_cvtsi128_si32( abcd );
|
|
*(uint32_t*)(dst + 1 * BPS) = _mm_cvtsi128_si32( efgh );
|
|
*(uint32_t*)(dst + 2 * BPS) = _mm_cvtsi128_si32(_mm_slli_si128(abcd, 1));
|
|
*(uint32_t*)(dst + 3 * BPS) = _mm_cvtsi128_si32(_mm_slli_si128(efgh, 1));
|
|
|
|
// these two are hard to implement in SSE2, so we keep the C-version:
|
|
DST(0, 2) = AVG3(J, I, X);
|
|
DST(0, 3) = AVG3(K, J, I);
|
|
}
|
|
|
|
static WEBP_INLINE void VL4(uint8_t* dst,
|
|
const uint8_t* top) { // Vertical-Left
|
|
const __m128i one = _mm_set1_epi8(1);
|
|
const __m128i ABCDEFGH = _mm_loadl_epi64((const __m128i*)top);
|
|
const __m128i BCDEFGH_ = _mm_srli_si128(ABCDEFGH, 1);
|
|
const __m128i CDEFGH__ = _mm_srli_si128(ABCDEFGH, 2);
|
|
const __m128i avg1 = _mm_avg_epu8(ABCDEFGH, BCDEFGH_);
|
|
const __m128i avg2 = _mm_avg_epu8(CDEFGH__, BCDEFGH_);
|
|
const __m128i avg3 = _mm_avg_epu8(avg1, avg2);
|
|
const __m128i lsb1 = _mm_and_si128(_mm_xor_si128(avg1, avg2), one);
|
|
const __m128i ab = _mm_xor_si128(ABCDEFGH, BCDEFGH_);
|
|
const __m128i bc = _mm_xor_si128(CDEFGH__, BCDEFGH_);
|
|
const __m128i abbc = _mm_or_si128(ab, bc);
|
|
const __m128i lsb2 = _mm_and_si128(abbc, lsb1);
|
|
const __m128i avg4 = _mm_subs_epu8(avg3, lsb2);
|
|
const uint32_t extra_out = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 4));
|
|
*(uint32_t*)(dst + 0 * BPS) = _mm_cvtsi128_si32( avg1 );
|
|
*(uint32_t*)(dst + 1 * BPS) = _mm_cvtsi128_si32( avg4 );
|
|
*(uint32_t*)(dst + 2 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(avg1, 1));
|
|
*(uint32_t*)(dst + 3 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(avg4, 1));
|
|
|
|
// these two are hard to get and irregular
|
|
DST(3, 2) = (extra_out >> 0) & 0xff;
|
|
DST(3, 3) = (extra_out >> 8) & 0xff;
|
|
}
|
|
|
|
static WEBP_INLINE void RD4(uint8_t* dst, const uint8_t* top) { // Down-right
|
|
const __m128i one = _mm_set1_epi8(1);
|
|
const __m128i LKJIXABC = _mm_loadl_epi64((const __m128i*)(top - 5));
|
|
const __m128i LKJIXABCD = _mm_insert_epi16(LKJIXABC, top[3], 4);
|
|
const __m128i KJIXABCD_ = _mm_srli_si128(LKJIXABCD, 1);
|
|
const __m128i JIXABCD__ = _mm_srli_si128(LKJIXABCD, 2);
|
|
const __m128i avg1 = _mm_avg_epu8(JIXABCD__, LKJIXABCD);
|
|
const __m128i lsb = _mm_and_si128(_mm_xor_si128(JIXABCD__, LKJIXABCD), one);
|
|
const __m128i avg2 = _mm_subs_epu8(avg1, lsb);
|
|
const __m128i abcdefg = _mm_avg_epu8(avg2, KJIXABCD_);
|
|
*(uint32_t*)(dst + 3 * BPS) = _mm_cvtsi128_si32( abcdefg );
|
|
*(uint32_t*)(dst + 2 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 1));
|
|
*(uint32_t*)(dst + 1 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 2));
|
|
*(uint32_t*)(dst + 0 * BPS) = _mm_cvtsi128_si32(_mm_srli_si128(abcdefg, 3));
|
|
}
|
|
|
|
static WEBP_INLINE void HU4(uint8_t* dst, const uint8_t* top) {
|
|
const int I = top[-2];
|
|
const int J = top[-3];
|
|
const int K = top[-4];
|
|
const int L = top[-5];
|
|
DST(0, 0) = AVG2(I, J);
|
|
DST(2, 0) = DST(0, 1) = AVG2(J, K);
|
|
DST(2, 1) = DST(0, 2) = AVG2(K, L);
|
|
DST(1, 0) = AVG3(I, J, K);
|
|
DST(3, 0) = DST(1, 1) = AVG3(J, K, L);
|
|
DST(3, 1) = DST(1, 2) = AVG3(K, L, L);
|
|
DST(3, 2) = DST(2, 2) =
|
|
DST(0, 3) = DST(1, 3) = DST(2, 3) = DST(3, 3) = L;
|
|
}
|
|
|
|
static WEBP_INLINE void HD4(uint8_t* dst, const uint8_t* top) {
|
|
const int X = top[-1];
|
|
const int I = top[-2];
|
|
const int J = top[-3];
|
|
const int K = top[-4];
|
|
const int L = top[-5];
|
|
const int A = top[0];
|
|
const int B = top[1];
|
|
const int C = top[2];
|
|
|
|
DST(0, 0) = DST(2, 1) = AVG2(I, X);
|
|
DST(0, 1) = DST(2, 2) = AVG2(J, I);
|
|
DST(0, 2) = DST(2, 3) = AVG2(K, J);
|
|
DST(0, 3) = AVG2(L, K);
|
|
|
|
DST(3, 0) = AVG3(A, B, C);
|
|
DST(2, 0) = AVG3(X, A, B);
|
|
DST(1, 0) = DST(3, 1) = AVG3(I, X, A);
|
|
DST(1, 1) = DST(3, 2) = AVG3(J, I, X);
|
|
DST(1, 2) = DST(3, 3) = AVG3(K, J, I);
|
|
DST(1, 3) = AVG3(L, K, J);
|
|
}
|
|
|
|
static WEBP_INLINE void TM4(uint8_t* dst, const uint8_t* top) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i top_values = _mm_cvtsi32_si128(MemToUint32(top));
|
|
const __m128i top_base = _mm_unpacklo_epi8(top_values, zero);
|
|
int y;
|
|
for (y = 0; y < 4; ++y, dst += BPS) {
|
|
const int val = top[-2 - y] - top[-1];
|
|
const __m128i base = _mm_set1_epi16(val);
|
|
const __m128i out = _mm_packus_epi16(_mm_add_epi16(base, top_base), zero);
|
|
*(int*)dst = _mm_cvtsi128_si32(out);
|
|
}
|
|
}
|
|
|
|
#undef DST
|
|
#undef AVG3
|
|
#undef AVG2
|
|
|
|
//------------------------------------------------------------------------------
|
|
// luma 4x4 prediction
|
|
|
|
// Left samples are top[-5 .. -2], top_left is top[-1], top are
|
|
// located at top[0..3], and top right is top[4..7]
|
|
static void Intra4Preds(uint8_t* dst, const uint8_t* top) {
|
|
DC4(I4DC4 + dst, top);
|
|
TM4(I4TM4 + dst, top);
|
|
VE4(I4VE4 + dst, top);
|
|
HE4(I4HE4 + dst, top);
|
|
RD4(I4RD4 + dst, top);
|
|
VR4(I4VR4 + dst, top);
|
|
LD4(I4LD4 + dst, top);
|
|
VL4(I4VL4 + dst, top);
|
|
HD4(I4HD4 + dst, top);
|
|
HU4(I4HU4 + dst, top);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Chroma 8x8 prediction (paragraph 12.2)
|
|
|
|
static void IntraChromaPreds(uint8_t* dst, const uint8_t* left,
|
|
const uint8_t* top) {
|
|
// U block
|
|
DC8uvMode(C8DC8 + dst, left, top);
|
|
VerticalPred(C8VE8 + dst, top, 8);
|
|
HorizontalPred(C8HE8 + dst, left, 8);
|
|
TrueMotion(C8TM8 + dst, left, top, 8);
|
|
// V block
|
|
dst += 8;
|
|
if (top != NULL) top += 8;
|
|
if (left != NULL) left += 16;
|
|
DC8uvMode(C8DC8 + dst, left, top);
|
|
VerticalPred(C8VE8 + dst, top, 8);
|
|
HorizontalPred(C8HE8 + dst, left, 8);
|
|
TrueMotion(C8TM8 + dst, left, top, 8);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// luma 16x16 prediction (paragraph 12.3)
|
|
|
|
static void Intra16Preds(uint8_t* dst,
|
|
const uint8_t* left, const uint8_t* top) {
|
|
DC16Mode(I16DC16 + dst, left, top);
|
|
VerticalPred(I16VE16 + dst, top, 16);
|
|
HorizontalPred(I16HE16 + dst, left, 16);
|
|
TrueMotion(I16TM16 + dst, left, top, 16);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Metric
|
|
|
|
static WEBP_INLINE void SubtractAndAccumulate(const __m128i a, const __m128i b,
|
|
__m128i* const sum) {
|
|
// take abs(a-b) in 8b
|
|
const __m128i a_b = _mm_subs_epu8(a, b);
|
|
const __m128i b_a = _mm_subs_epu8(b, a);
|
|
const __m128i abs_a_b = _mm_or_si128(a_b, b_a);
|
|
// zero-extend to 16b
|
|
const __m128i zero = _mm_setzero_si128();
|
|
const __m128i C0 = _mm_unpacklo_epi8(abs_a_b, zero);
|
|
const __m128i C1 = _mm_unpackhi_epi8(abs_a_b, zero);
|
|
// multiply with self
|
|
const __m128i sum1 = _mm_madd_epi16(C0, C0);
|
|
const __m128i sum2 = _mm_madd_epi16(C1, C1);
|
|
*sum = _mm_add_epi32(sum1, sum2);
|
|
}
|
|
|
|
static WEBP_INLINE int SSE_16xN(const uint8_t* a, const uint8_t* b,
|
|
int num_pairs) {
|
|
__m128i sum = _mm_setzero_si128();
|
|
int32_t tmp[4];
|
|
int i;
|
|
|
|
for (i = 0; i < num_pairs; ++i) {
|
|
const __m128i a0 = _mm_loadu_si128((const __m128i*)&a[BPS * 0]);
|
|
const __m128i b0 = _mm_loadu_si128((const __m128i*)&b[BPS * 0]);
|
|
const __m128i a1 = _mm_loadu_si128((const __m128i*)&a[BPS * 1]);
|
|
const __m128i b1 = _mm_loadu_si128((const __m128i*)&b[BPS * 1]);
|
|
__m128i sum1, sum2;
|
|
SubtractAndAccumulate(a0, b0, &sum1);
|
|
SubtractAndAccumulate(a1, b1, &sum2);
|
|
sum = _mm_add_epi32(sum, _mm_add_epi32(sum1, sum2));
|
|
a += 2 * BPS;
|
|
b += 2 * BPS;
|
|
}
|
|
_mm_storeu_si128((__m128i*)tmp, sum);
|
|
return (tmp[3] + tmp[2] + tmp[1] + tmp[0]);
|
|
}
|
|
|
|
static int SSE16x16(const uint8_t* a, const uint8_t* b) {
|
|
return SSE_16xN(a, b, 8);
|
|
}
|
|
|
|
static int SSE16x8(const uint8_t* a, const uint8_t* b) {
|
|
return SSE_16xN(a, b, 4);
|
|
}
|
|
|
|
#define LOAD_8x16b(ptr) \
|
|
_mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i*)(ptr)), zero)
|
|
|
|
static int SSE8x8(const uint8_t* a, const uint8_t* b) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
int num_pairs = 4;
|
|
__m128i sum = zero;
|
|
int32_t tmp[4];
|
|
while (num_pairs-- > 0) {
|
|
const __m128i a0 = LOAD_8x16b(&a[BPS * 0]);
|
|
const __m128i a1 = LOAD_8x16b(&a[BPS * 1]);
|
|
const __m128i b0 = LOAD_8x16b(&b[BPS * 0]);
|
|
const __m128i b1 = LOAD_8x16b(&b[BPS * 1]);
|
|
// subtract
|
|
const __m128i c0 = _mm_subs_epi16(a0, b0);
|
|
const __m128i c1 = _mm_subs_epi16(a1, b1);
|
|
// multiply/accumulate with self
|
|
const __m128i d0 = _mm_madd_epi16(c0, c0);
|
|
const __m128i d1 = _mm_madd_epi16(c1, c1);
|
|
// collect
|
|
const __m128i sum01 = _mm_add_epi32(d0, d1);
|
|
sum = _mm_add_epi32(sum, sum01);
|
|
a += 2 * BPS;
|
|
b += 2 * BPS;
|
|
}
|
|
_mm_storeu_si128((__m128i*)tmp, sum);
|
|
return (tmp[3] + tmp[2] + tmp[1] + tmp[0]);
|
|
}
|
|
#undef LOAD_8x16b
|
|
|
|
static int SSE4x4(const uint8_t* a, const uint8_t* b) {
|
|
const __m128i zero = _mm_setzero_si128();
|
|
|
|
// Load values. Note that we read 8 pixels instead of 4,
|
|
// but the a/b buffers are over-allocated to that effect.
|
|
const __m128i a0 = _mm_loadl_epi64((const __m128i*)&a[BPS * 0]);
|
|
const __m128i a1 = _mm_loadl_epi64((const __m128i*)&a[BPS * 1]);
|
|
const __m128i a2 = _mm_loadl_epi64((const __m128i*)&a[BPS * 2]);
|
|
const __m128i a3 = _mm_loadl_epi64((const __m128i*)&a[BPS * 3]);
|
|
const __m128i b0 = _mm_loadl_epi64((const __m128i*)&b[BPS * 0]);
|
|
const __m128i b1 = _mm_loadl_epi64((const __m128i*)&b[BPS * 1]);
|
|
const __m128i b2 = _mm_loadl_epi64((const __m128i*)&b[BPS * 2]);
|
|
const __m128i b3 = _mm_loadl_epi64((const __m128i*)&b[BPS * 3]);
|
|
// Combine pair of lines.
|
|
const __m128i a01 = _mm_unpacklo_epi32(a0, a1);
|
|
const __m128i a23 = _mm_unpacklo_epi32(a2, a3);
|
|
const __m128i b01 = _mm_unpacklo_epi32(b0, b1);
|
|
const __m128i b23 = _mm_unpacklo_epi32(b2, b3);
|
|
// Convert to 16b.
|
|
const __m128i a01s = _mm_unpacklo_epi8(a01, zero);
|
|
const __m128i a23s = _mm_unpacklo_epi8(a23, zero);
|
|
const __m128i b01s = _mm_unpacklo_epi8(b01, zero);
|
|
const __m128i b23s = _mm_unpacklo_epi8(b23, zero);
|
|
// subtract, square and accumulate
|
|
const __m128i d0 = _mm_subs_epi16(a01s, b01s);
|
|
const __m128i d1 = _mm_subs_epi16(a23s, b23s);
|
|
const __m128i e0 = _mm_madd_epi16(d0, d0);
|
|
const __m128i e1 = _mm_madd_epi16(d1, d1);
|
|
const __m128i sum = _mm_add_epi32(e0, e1);
|
|
|
|
int32_t tmp[4];
|
|
_mm_storeu_si128((__m128i*)tmp, sum);
|
|
return (tmp[3] + tmp[2] + tmp[1] + tmp[0]);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Texture distortion
|
|
//
|
|
// We try to match the spectral content (weighted) between source and
|
|
// reconstructed samples.
|
|
|
|
// Hadamard transform
|
|
// Returns the difference between the weighted sum of the absolute value of
|
|
// transformed coefficients.
|
|
static int TTransform(const uint8_t* inA, const uint8_t* inB,
|
|
const uint16_t* const w) {
|
|
int32_t sum[4];
|
|
__m128i tmp_0, tmp_1, tmp_2, tmp_3;
|
|
const __m128i zero = _mm_setzero_si128();
|
|
|
|
// Load, combine and transpose inputs.
|
|
{
|
|
const __m128i inA_0 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 0]);
|
|
const __m128i inA_1 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 1]);
|
|
const __m128i inA_2 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 2]);
|
|
const __m128i inA_3 = _mm_loadl_epi64((const __m128i*)&inA[BPS * 3]);
|
|
const __m128i inB_0 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 0]);
|
|
const __m128i inB_1 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 1]);
|
|
const __m128i inB_2 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 2]);
|
|
const __m128i inB_3 = _mm_loadl_epi64((const __m128i*)&inB[BPS * 3]);
|
|
|
|
// Combine inA and inB (we'll do two transforms in parallel).
|
|
const __m128i inAB_0 = _mm_unpacklo_epi8(inA_0, inB_0);
|
|
const __m128i inAB_1 = _mm_unpacklo_epi8(inA_1, inB_1);
|
|
const __m128i inAB_2 = _mm_unpacklo_epi8(inA_2, inB_2);
|
|
const __m128i inAB_3 = _mm_unpacklo_epi8(inA_3, inB_3);
|
|
// a00 b00 a01 b01 a02 b03 a03 b03 0 0 0 0 0 0 0 0
|
|
// a10 b10 a11 b11 a12 b12 a13 b13 0 0 0 0 0 0 0 0
|
|
// a20 b20 a21 b21 a22 b22 a23 b23 0 0 0 0 0 0 0 0
|
|
// a30 b30 a31 b31 a32 b32 a33 b33 0 0 0 0 0 0 0 0
|
|
|
|
// Transpose the two 4x4, discarding the filling zeroes.
|
|
const __m128i transpose0_0 = _mm_unpacklo_epi8(inAB_0, inAB_2);
|
|
const __m128i transpose0_1 = _mm_unpacklo_epi8(inAB_1, inAB_3);
|
|
// a00 a20 b00 b20 a01 a21 b01 b21 a02 a22 b02 b22 a03 a23 b03 b23
|
|
// a10 a30 b10 b30 a11 a31 b11 b31 a12 a32 b12 b32 a13 a33 b13 b33
|
|
const __m128i transpose1_0 = _mm_unpacklo_epi8(transpose0_0, transpose0_1);
|
|
const __m128i transpose1_1 = _mm_unpackhi_epi8(transpose0_0, transpose0_1);
|
|
// a00 a10 a20 a30 b00 b10 b20 b30 a01 a11 a21 a31 b01 b11 b21 b31
|
|
// a02 a12 a22 a32 b02 b12 b22 b32 a03 a13 a23 a33 b03 b13 b23 b33
|
|
|
|
// Convert to 16b.
|
|
tmp_0 = _mm_unpacklo_epi8(transpose1_0, zero);
|
|
tmp_1 = _mm_unpackhi_epi8(transpose1_0, zero);
|
|
tmp_2 = _mm_unpacklo_epi8(transpose1_1, zero);
|
|
tmp_3 = _mm_unpackhi_epi8(transpose1_1, zero);
|
|
// a00 a10 a20 a30 b00 b10 b20 b30
|
|
// a01 a11 a21 a31 b01 b11 b21 b31
|
|
// a02 a12 a22 a32 b02 b12 b22 b32
|
|
// a03 a13 a23 a33 b03 b13 b23 b33
|
|
}
|
|
|
|
// Horizontal pass and subsequent transpose.
|
|
{
|
|
// Calculate a and b (two 4x4 at once).
|
|
const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2);
|
|
const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3);
|
|
const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3);
|
|
const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2);
|
|
const __m128i b0 = _mm_add_epi16(a0, a1);
|
|
const __m128i b1 = _mm_add_epi16(a3, a2);
|
|
const __m128i b2 = _mm_sub_epi16(a3, a2);
|
|
const __m128i b3 = _mm_sub_epi16(a0, a1);
|
|
// a00 a01 a02 a03 b00 b01 b02 b03
|
|
// a10 a11 a12 a13 b10 b11 b12 b13
|
|
// a20 a21 a22 a23 b20 b21 b22 b23
|
|
// a30 a31 a32 a33 b30 b31 b32 b33
|
|
|
|
// Transpose the two 4x4.
|
|
const __m128i transpose0_0 = _mm_unpacklo_epi16(b0, b1);
|
|
const __m128i transpose0_1 = _mm_unpacklo_epi16(b2, b3);
|
|
const __m128i transpose0_2 = _mm_unpackhi_epi16(b0, b1);
|
|
const __m128i transpose0_3 = _mm_unpackhi_epi16(b2, b3);
|
|
// a00 a10 a01 a11 a02 a12 a03 a13
|
|
// a20 a30 a21 a31 a22 a32 a23 a33
|
|
// b00 b10 b01 b11 b02 b12 b03 b13
|
|
// b20 b30 b21 b31 b22 b32 b23 b33
|
|
const __m128i transpose1_0 = _mm_unpacklo_epi32(transpose0_0, transpose0_1);
|
|
const __m128i transpose1_1 = _mm_unpacklo_epi32(transpose0_2, transpose0_3);
|
|
const __m128i transpose1_2 = _mm_unpackhi_epi32(transpose0_0, transpose0_1);
|
|
const __m128i transpose1_3 = _mm_unpackhi_epi32(transpose0_2, transpose0_3);
|
|
// a00 a10 a20 a30 a01 a11 a21 a31
|
|
// b00 b10 b20 b30 b01 b11 b21 b31
|
|
// a02 a12 a22 a32 a03 a13 a23 a33
|
|
// b02 b12 a22 b32 b03 b13 b23 b33
|
|
tmp_0 = _mm_unpacklo_epi64(transpose1_0, transpose1_1);
|
|
tmp_1 = _mm_unpackhi_epi64(transpose1_0, transpose1_1);
|
|
tmp_2 = _mm_unpacklo_epi64(transpose1_2, transpose1_3);
|
|
tmp_3 = _mm_unpackhi_epi64(transpose1_2, transpose1_3);
|
|
// a00 a10 a20 a30 b00 b10 b20 b30
|
|
// a01 a11 a21 a31 b01 b11 b21 b31
|
|
// a02 a12 a22 a32 b02 b12 b22 b32
|
|
// a03 a13 a23 a33 b03 b13 b23 b33
|
|
}
|
|
|
|
// Vertical pass and difference of weighted sums.
|
|
{
|
|
// Load all inputs.
|
|
// TODO(cduvivier): Make variable declarations and allocations aligned so
|
|
// we can use _mm_load_si128 instead of _mm_loadu_si128.
|
|
const __m128i w_0 = _mm_loadu_si128((const __m128i*)&w[0]);
|
|
const __m128i w_8 = _mm_loadu_si128((const __m128i*)&w[8]);
|
|
|
|
// Calculate a and b (two 4x4 at once).
|
|
const __m128i a0 = _mm_add_epi16(tmp_0, tmp_2);
|
|
const __m128i a1 = _mm_add_epi16(tmp_1, tmp_3);
|
|
const __m128i a2 = _mm_sub_epi16(tmp_1, tmp_3);
|
|
const __m128i a3 = _mm_sub_epi16(tmp_0, tmp_2);
|
|
const __m128i b0 = _mm_add_epi16(a0, a1);
|
|
const __m128i b1 = _mm_add_epi16(a3, a2);
|
|
const __m128i b2 = _mm_sub_epi16(a3, a2);
|
|
const __m128i b3 = _mm_sub_epi16(a0, a1);
|
|
|
|
// Separate the transforms of inA and inB.
|
|
__m128i A_b0 = _mm_unpacklo_epi64(b0, b1);
|
|
__m128i A_b2 = _mm_unpacklo_epi64(b2, b3);
|
|
__m128i B_b0 = _mm_unpackhi_epi64(b0, b1);
|
|
__m128i B_b2 = _mm_unpackhi_epi64(b2, b3);
|
|
|
|
{
|
|
const __m128i d0 = _mm_sub_epi16(zero, A_b0);
|
|
const __m128i d1 = _mm_sub_epi16(zero, A_b2);
|
|
const __m128i d2 = _mm_sub_epi16(zero, B_b0);
|
|
const __m128i d3 = _mm_sub_epi16(zero, B_b2);
|
|
A_b0 = _mm_max_epi16(A_b0, d0); // abs(v), 16b
|
|
A_b2 = _mm_max_epi16(A_b2, d1);
|
|
B_b0 = _mm_max_epi16(B_b0, d2);
|
|
B_b2 = _mm_max_epi16(B_b2, d3);
|
|
}
|
|
|
|
// weighted sums
|
|
A_b0 = _mm_madd_epi16(A_b0, w_0);
|
|
A_b2 = _mm_madd_epi16(A_b2, w_8);
|
|
B_b0 = _mm_madd_epi16(B_b0, w_0);
|
|
B_b2 = _mm_madd_epi16(B_b2, w_8);
|
|
A_b0 = _mm_add_epi32(A_b0, A_b2);
|
|
B_b0 = _mm_add_epi32(B_b0, B_b2);
|
|
|
|
// difference of weighted sums
|
|
A_b0 = _mm_sub_epi32(A_b0, B_b0);
|
|
_mm_storeu_si128((__m128i*)&sum[0], A_b0);
|
|
}
|
|
return sum[0] + sum[1] + sum[2] + sum[3];
|
|
}
|
|
|
|
static int Disto4x4(const uint8_t* const a, const uint8_t* const b,
|
|
const uint16_t* const w) {
|
|
const int diff_sum = TTransform(a, b, w);
|
|
return abs(diff_sum) >> 5;
|
|
}
|
|
|
|
static int Disto16x16(const uint8_t* const a, const uint8_t* const b,
|
|
const uint16_t* const w) {
|
|
int D = 0;
|
|
int x, y;
|
|
for (y = 0; y < 16 * BPS; y += 4 * BPS) {
|
|
for (x = 0; x < 16; x += 4) {
|
|
D += Disto4x4(a + x + y, b + x + y, w);
|
|
}
|
|
}
|
|
return D;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Quantization
|
|
//
|
|
|
|
static WEBP_INLINE int DoQuantizeBlock(int16_t in[16], int16_t out[16],
|
|
const uint16_t* const sharpen,
|
|
const VP8Matrix* const mtx) {
|
|
const __m128i max_coeff_2047 = _mm_set1_epi16(MAX_LEVEL);
|
|
const __m128i zero = _mm_setzero_si128();
|
|
__m128i coeff0, coeff8;
|
|
__m128i out0, out8;
|
|
__m128i packed_out;
|
|
|
|
// Load all inputs.
|
|
// TODO(cduvivier): Make variable declarations and allocations aligned so that
|
|
// we can use _mm_load_si128 instead of _mm_loadu_si128.
|
|
__m128i in0 = _mm_loadu_si128((__m128i*)&in[0]);
|
|
__m128i in8 = _mm_loadu_si128((__m128i*)&in[8]);
|
|
const __m128i iq0 = _mm_loadu_si128((const __m128i*)&mtx->iq_[0]);
|
|
const __m128i iq8 = _mm_loadu_si128((const __m128i*)&mtx->iq_[8]);
|
|
const __m128i q0 = _mm_loadu_si128((const __m128i*)&mtx->q_[0]);
|
|
const __m128i q8 = _mm_loadu_si128((const __m128i*)&mtx->q_[8]);
|
|
|
|
// extract sign(in) (0x0000 if positive, 0xffff if negative)
|
|
const __m128i sign0 = _mm_cmpgt_epi16(zero, in0);
|
|
const __m128i sign8 = _mm_cmpgt_epi16(zero, in8);
|
|
|
|
// coeff = abs(in) = (in ^ sign) - sign
|
|
coeff0 = _mm_xor_si128(in0, sign0);
|
|
coeff8 = _mm_xor_si128(in8, sign8);
|
|
coeff0 = _mm_sub_epi16(coeff0, sign0);
|
|
coeff8 = _mm_sub_epi16(coeff8, sign8);
|
|
|
|
// coeff = abs(in) + sharpen
|
|
if (sharpen != NULL) {
|
|
const __m128i sharpen0 = _mm_loadu_si128((const __m128i*)&sharpen[0]);
|
|
const __m128i sharpen8 = _mm_loadu_si128((const __m128i*)&sharpen[8]);
|
|
coeff0 = _mm_add_epi16(coeff0, sharpen0);
|
|
coeff8 = _mm_add_epi16(coeff8, sharpen8);
|
|
}
|
|
|
|
// out = (coeff * iQ + B) >> QFIX
|
|
{
|
|
// doing calculations with 32b precision (QFIX=17)
|
|
// out = (coeff * iQ)
|
|
const __m128i coeff_iQ0H = _mm_mulhi_epu16(coeff0, iq0);
|
|
const __m128i coeff_iQ0L = _mm_mullo_epi16(coeff0, iq0);
|
|
const __m128i coeff_iQ8H = _mm_mulhi_epu16(coeff8, iq8);
|
|
const __m128i coeff_iQ8L = _mm_mullo_epi16(coeff8, iq8);
|
|
__m128i out_00 = _mm_unpacklo_epi16(coeff_iQ0L, coeff_iQ0H);
|
|
__m128i out_04 = _mm_unpackhi_epi16(coeff_iQ0L, coeff_iQ0H);
|
|
__m128i out_08 = _mm_unpacklo_epi16(coeff_iQ8L, coeff_iQ8H);
|
|
__m128i out_12 = _mm_unpackhi_epi16(coeff_iQ8L, coeff_iQ8H);
|
|
// out = (coeff * iQ + B)
|
|
const __m128i bias_00 = _mm_loadu_si128((const __m128i*)&mtx->bias_[0]);
|
|
const __m128i bias_04 = _mm_loadu_si128((const __m128i*)&mtx->bias_[4]);
|
|
const __m128i bias_08 = _mm_loadu_si128((const __m128i*)&mtx->bias_[8]);
|
|
const __m128i bias_12 = _mm_loadu_si128((const __m128i*)&mtx->bias_[12]);
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out_00 = _mm_add_epi32(out_00, bias_00);
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out_04 = _mm_add_epi32(out_04, bias_04);
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out_08 = _mm_add_epi32(out_08, bias_08);
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out_12 = _mm_add_epi32(out_12, bias_12);
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// out = QUANTDIV(coeff, iQ, B, QFIX)
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out_00 = _mm_srai_epi32(out_00, QFIX);
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out_04 = _mm_srai_epi32(out_04, QFIX);
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out_08 = _mm_srai_epi32(out_08, QFIX);
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out_12 = _mm_srai_epi32(out_12, QFIX);
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|
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// pack result as 16b
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out0 = _mm_packs_epi32(out_00, out_04);
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out8 = _mm_packs_epi32(out_08, out_12);
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|
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// if (coeff > 2047) coeff = 2047
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out0 = _mm_min_epi16(out0, max_coeff_2047);
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out8 = _mm_min_epi16(out8, max_coeff_2047);
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|
}
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|
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// get sign back (if (sign[j]) out_n = -out_n)
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|
out0 = _mm_xor_si128(out0, sign0);
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|
out8 = _mm_xor_si128(out8, sign8);
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out0 = _mm_sub_epi16(out0, sign0);
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|
out8 = _mm_sub_epi16(out8, sign8);
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|
|
|
// in = out * Q
|
|
in0 = _mm_mullo_epi16(out0, q0);
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|
in8 = _mm_mullo_epi16(out8, q8);
|
|
|
|
_mm_storeu_si128((__m128i*)&in[0], in0);
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|
_mm_storeu_si128((__m128i*)&in[8], in8);
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|
|
|
// zigzag the output before storing it.
|
|
//
|
|
// The zigzag pattern can almost be reproduced with a small sequence of
|
|
// shuffles. After it, we only need to swap the 7th (ending up in third
|
|
// position instead of twelfth) and 8th values.
|
|
{
|
|
__m128i outZ0, outZ8;
|
|
outZ0 = _mm_shufflehi_epi16(out0, _MM_SHUFFLE(2, 1, 3, 0));
|
|
outZ0 = _mm_shuffle_epi32 (outZ0, _MM_SHUFFLE(3, 1, 2, 0));
|
|
outZ0 = _mm_shufflehi_epi16(outZ0, _MM_SHUFFLE(3, 1, 0, 2));
|
|
outZ8 = _mm_shufflelo_epi16(out8, _MM_SHUFFLE(3, 0, 2, 1));
|
|
outZ8 = _mm_shuffle_epi32 (outZ8, _MM_SHUFFLE(3, 1, 2, 0));
|
|
outZ8 = _mm_shufflelo_epi16(outZ8, _MM_SHUFFLE(1, 3, 2, 0));
|
|
_mm_storeu_si128((__m128i*)&out[0], outZ0);
|
|
_mm_storeu_si128((__m128i*)&out[8], outZ8);
|
|
packed_out = _mm_packs_epi16(outZ0, outZ8);
|
|
}
|
|
{
|
|
const int16_t outZ_12 = out[12];
|
|
const int16_t outZ_3 = out[3];
|
|
out[3] = outZ_12;
|
|
out[12] = outZ_3;
|
|
}
|
|
|
|
// detect if all 'out' values are zeroes or not
|
|
return (_mm_movemask_epi8(_mm_cmpeq_epi8(packed_out, zero)) != 0xffff);
|
|
}
|
|
|
|
static int QuantizeBlock(int16_t in[16], int16_t out[16],
|
|
const VP8Matrix* const mtx) {
|
|
return DoQuantizeBlock(in, out, &mtx->sharpen_[0], mtx);
|
|
}
|
|
|
|
static int QuantizeBlockWHT(int16_t in[16], int16_t out[16],
|
|
const VP8Matrix* const mtx) {
|
|
return DoQuantizeBlock(in, out, NULL, mtx);
|
|
}
|
|
|
|
static int Quantize2Blocks(int16_t in[32], int16_t out[32],
|
|
const VP8Matrix* const mtx) {
|
|
int nz;
|
|
const uint16_t* const sharpen = &mtx->sharpen_[0];
|
|
nz = DoQuantizeBlock(in + 0 * 16, out + 0 * 16, sharpen, mtx) << 0;
|
|
nz |= DoQuantizeBlock(in + 1 * 16, out + 1 * 16, sharpen, mtx) << 1;
|
|
return nz;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Entry point
|
|
|
|
extern void VP8EncDspInitSSE2(void);
|
|
|
|
WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitSSE2(void) {
|
|
VP8CollectHistogram = CollectHistogram;
|
|
VP8EncPredLuma16 = Intra16Preds;
|
|
VP8EncPredChroma8 = IntraChromaPreds;
|
|
VP8EncPredLuma4 = Intra4Preds;
|
|
VP8EncQuantizeBlock = QuantizeBlock;
|
|
VP8EncQuantize2Blocks = Quantize2Blocks;
|
|
VP8EncQuantizeBlockWHT = QuantizeBlockWHT;
|
|
VP8ITransform = ITransform;
|
|
VP8FTransform = FTransform;
|
|
VP8FTransform2 = FTransform2;
|
|
VP8FTransformWHT = FTransformWHT;
|
|
VP8SSE16x16 = SSE16x16;
|
|
VP8SSE16x8 = SSE16x8;
|
|
VP8SSE8x8 = SSE8x8;
|
|
VP8SSE4x4 = SSE4x4;
|
|
VP8TDisto4x4 = Disto4x4;
|
|
VP8TDisto16x16 = Disto16x16;
|
|
}
|
|
|
|
#else // !WEBP_USE_SSE2
|
|
|
|
WEBP_DSP_INIT_STUB(VP8EncDspInitSSE2)
|
|
|
|
#endif // WEBP_USE_SSE2
|