Improve performance of inverse DWT 5x3 (#953)
* Use single-pass lifting inverse wavelet transform. * For vertical pass, use SSE2 when available so as to process 8 columns in parallel. This is the most beneficial improvement, since the vertical pass involves a lot of cache trashing. With the bench_dwt utility with default arguments (16383x16383 image), time goes from 4.064 s to 1.212 s.
This commit is contained in:
Even Rouault
parent
919ed5f8b8
commit
fa55b52d19
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@ -13,6 +13,7 @@
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2007, Jonathan Ballard <dzonatas@dzonux.net>
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* Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
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* Copyright (c) 2017, IntoPIX SA <support@intopix.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -40,6 +41,11 @@
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#ifdef __SSE__
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#include <xmmintrin.h>
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#endif
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#ifdef __SSE2__
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#include <emmintrin.h>
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#endif
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#include <assert.h>
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#include "opj_includes.h"
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@ -49,6 +55,8 @@
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#define OPJ_WS(i) v->mem[(i)*2]
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#define OPJ_WD(i) v->mem[(1+(i)*2)]
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#define PARALLEL_COLS_53 8
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/** @name Local data structures */
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/*@{*/
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@ -83,7 +91,7 @@ static const OPJ_FLOAT32 opj_c13318 = 1.625732422f;
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/**
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Virtual function type for wavelet transform in 1-D
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*/
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typedef void (*DWT1DFN)(opj_dwt_t* v);
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typedef void (*DWT1DFN)(const opj_dwt_t* v);
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/** @name Local static functions */
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/*@{*/
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@ -99,25 +107,11 @@ Forward lazy transform (vertical)
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static void opj_dwt_deinterleave_v(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn,
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OPJ_INT32 sn, OPJ_INT32 x, OPJ_INT32 cas);
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/**
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Inverse lazy transform (horizontal)
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*/
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static void opj_dwt_interleave_h(opj_dwt_t* h, OPJ_INT32 *a);
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/**
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Inverse lazy transform (vertical)
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*/
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static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x);
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/**
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Forward 5-3 wavelet transform in 1-D
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*/
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static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
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OPJ_INT32 cas);
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/**
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Inverse 5-3 wavelet transform in 1-D
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*/
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static void opj_dwt_decode_1(opj_dwt_t *v);
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static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
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OPJ_INT32 cas);
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/**
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Forward 9-7 wavelet transform in 1-D
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*/
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static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
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@ -131,7 +125,7 @@ static void opj_dwt_encode_stepsize(OPJ_INT32 stepsize, OPJ_INT32 numbps,
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Inverse wavelet transform in 2-D.
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*/
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static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
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opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i, DWT1DFN fn);
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opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i);
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static OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,
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void (*p_function)(OPJ_INT32 *, OPJ_INT32, OPJ_INT32, OPJ_INT32));
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@ -255,10 +249,11 @@ static void opj_dwt_deinterleave_v(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn,
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} /*b[(sn+i)*x]=a[(2*i+1-cas)];*/
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}
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#ifdef STANDARD_SLOW_VERSION
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/* <summary> */
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/* Inverse lazy transform (horizontal). */
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/* </summary> */
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static void opj_dwt_interleave_h(opj_dwt_t* h, OPJ_INT32 *a)
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static void opj_dwt_interleave_h(const opj_dwt_t* h, OPJ_INT32 *a)
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{
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OPJ_INT32 *ai = a;
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OPJ_INT32 *bi = h->mem + h->cas;
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@ -279,7 +274,7 @@ static void opj_dwt_interleave_h(opj_dwt_t* h, OPJ_INT32 *a)
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/* <summary> */
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/* Inverse lazy transform (vertical). */
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/* </summary> */
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static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x)
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static void opj_dwt_interleave_v(const opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x)
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{
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OPJ_INT32 *ai = a;
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OPJ_INT32 *bi = v->mem + v->cas;
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@ -299,6 +294,7 @@ static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x)
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}
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}
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#endif /* STANDARD_SLOW_VERSION */
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/* <summary> */
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/* Forward 5-3 wavelet transform in 1-D. */
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@ -331,6 +327,7 @@ static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
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}
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}
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#ifdef STANDARD_SLOW_VERSION
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/* <summary> */
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/* Inverse 5-3 wavelet transform in 1-D. */
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/* </summary> */
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@ -362,14 +359,577 @@ static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
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}
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}
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/* <summary> */
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/* Inverse 5-3 wavelet transform in 1-D. */
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/* </summary> */
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static void opj_dwt_decode_1(opj_dwt_t *v)
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static void opj_dwt_decode_1(const opj_dwt_t *v)
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{
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opj_dwt_decode_1_(v->mem, v->dn, v->sn, v->cas);
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}
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#endif /* STANDARD_SLOW_VERSION */
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#if !defined(STANDARD_SLOW_VERSION)
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static void opj_idwt53_h_cas0(OPJ_INT32* tmp,
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const OPJ_INT32 sn,
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const OPJ_INT32 len,
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OPJ_INT32* tiledp)
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{
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OPJ_INT32 i, j;
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const OPJ_INT32* in_even = &tiledp[0];
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const OPJ_INT32* in_odd = &tiledp[sn];
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#ifdef TWO_PASS_VERSION
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/* For documentation purpose: performs lifting in two iterations, */
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/* but withtmp explicit interleaving */
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assert(len > 1);
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/* Even */
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tmp[0] = in_even[0] - ((in_odd[0] + 1) >> 1);
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for (i = 2, j = 0; i <= len - 2; i += 2, j++) {
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tmp[i] = in_even[j + 1] - ((in_odd[j] + in_odd[j + 1] + 2) >> 2);
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}
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if (len & 1) { /* if len is odd */
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tmp[len - 1] = in_even[(len - 1) / 2] - ((in_odd[(len - 2) / 2] + 1) >> 1);
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}
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/* Odd */
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for (i = 1, j = 0; i < len - 1; i += 2, j++) {
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tmp[i] = in_odd[j] + ((tmp[i - 1] + tmp[i + 1]) >> 1);
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}
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if (!(len & 1)) { /* if len is even */
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tmp[len - 1] = in_odd[(len - 1) / 2] + tmp[len - 2];
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}
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#else
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OPJ_INT32 d1c, d1n, s1n, s0c, s0n;
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assert(len > 1);
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/* Improved version of the TWO_PASS_VERSION: */
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/* Performs lifting in one single iteration. Saves memory */
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/* accesses and explicit interleaving. */
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s1n = in_even[0];
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d1n = in_odd[0];
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s0n = s1n - ((d1n + 1) >> 1);
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for (i = 0, j = 1; i < (len - 3); i += 2, j++) {
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d1c = d1n;
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s0c = s0n;
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s1n = in_even[j];
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d1n = in_odd[j];
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s0n = s1n - ((d1c + d1n + 2) >> 2);
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tmp[i ] = s0c;
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tmp[i + 1] = d1c + ((s0c + s0n) >> 1);
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}
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tmp[i] = s0n;
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if (len & 1) {
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tmp[len - 1] = in_even[(len - 1) / 2] - ((d1n + 1) >> 1);
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tmp[len - 2] = d1n + ((s0n + tmp[len - 1]) >> 1);
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} else {
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tmp[len - 1] = d1n + s0n;
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}
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#endif
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memcpy(tiledp, tmp, (OPJ_UINT32)len * sizeof(OPJ_INT32));
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}
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static void opj_idwt53_h_cas1(OPJ_INT32* tmp,
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const OPJ_INT32 sn,
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const OPJ_INT32 len,
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OPJ_INT32* tiledp)
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{
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OPJ_INT32 i, j;
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const OPJ_INT32* in_even = &tiledp[sn];
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const OPJ_INT32* in_odd = &tiledp[0];
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#ifdef TWO_PASS_VERSION
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/* For documentation purpose: performs lifting in two iterations, */
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/* but withtmp explicit interleaving */
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assert(len > 2);
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/* Odd */
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for (i = 1, j = 0; i < len - 1; i += 2, j++) {
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tmp[i] = in_odd[j] - ((in_even[j] + in_even[j + 1] + 2) >> 2);
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}
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if (!(len & 1)) {
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tmp[len - 1] = in_odd[len / 2 - 1] - ((in_even[len / 2 - 1] + 1) >> 1);
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}
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/* Even */
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tmp[0] = in_even[0] + tmp[1];
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for (i = 2, j = 1; i < len - 1; i += 2, j++) {
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tmp[i] = in_even[j] + ((tmp[i + 1] + tmp[i - 1]) >> 1);
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}
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if (len & 1) {
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tmp[len - 1] = in_even[len / 2] + tmp[len - 2];
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}
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#else
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OPJ_INT32 s1, s2, dc, dn;
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assert(len > 2);
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/* Improved version of the TWO_PASS_VERSION: */
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/* Performs lifting in one single iteration. Saves memory */
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/* accesses and explicit interleaving. */
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s1 = in_even[1];
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dc = in_odd[0] - ((in_even[0] + s1 + 2) >> 2);
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tmp[0] = in_even[0] + dc;
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for (i = 1, j = 1; i < (len - 2 - !(len & 1)); i += 2, j++) {
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s2 = in_even[j + 1];
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dn = in_odd[j] - ((s1 + s2 + 2) >> 2);
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tmp[i ] = dc;
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tmp[i + 1] = s1 + ((dn + dc) >> 1);
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dc = dn;
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s1 = s2;
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}
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tmp[i] = dc;
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if (!(len & 1)) {
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dn = in_odd[len / 2 - 1] - ((s1 + 1) >> 1);
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tmp[len - 2] = s1 + ((dn + dc) >> 1);
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tmp[len - 1] = dn;
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} else {
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tmp[len - 1] = s1 + dc;
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}
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#endif
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memcpy(tiledp, tmp, (OPJ_UINT32)len * sizeof(OPJ_INT32));
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}
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#endif /* !defined(STANDARD_SLOW_VERSION) */
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/* <summary> */
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/* Inverse 5-3 wavelet transform in 1-D for one row. */
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/* </summary> */
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/* Performs interleave, inverse wavelet transform and copy back to buffer */
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static void opj_idwt53_h(const opj_dwt_t *dwt,
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OPJ_INT32* tiledp)
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{
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#ifdef STANDARD_SLOW_VERSION
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/* For documentation purpose */
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opj_dwt_interleave_h(dwt, tiledp);
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opj_dwt_decode_1(dwt);
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memcpy(tiledp, dwt->mem, (OPJ_UINT32)(dwt->sn + dwt->dn) * sizeof(OPJ_INT32));
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#else
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const OPJ_INT32 sn = dwt->sn;
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const OPJ_INT32 len = sn + dwt->dn;
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if (dwt->cas == 0) { /* Left-most sample is on even coordinate */
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if (len > 1) {
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opj_idwt53_h_cas0(dwt->mem, sn, len, tiledp);
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} else {
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/* Unmodified value */
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}
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} else { /* Left-most sample is on odd coordinate */
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if (len == 1) {
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tiledp[0] /= 2;
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} else if (len == 2) {
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OPJ_INT32* out = dwt->mem;
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const OPJ_INT32* in_even = &tiledp[sn];
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const OPJ_INT32* in_odd = &tiledp[0];
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out[1] = in_odd[0] - ((in_even[0] + 1) >> 1);
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out[0] = in_even[0] + out[1];
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memcpy(tiledp, dwt->mem, (OPJ_UINT32)len * sizeof(OPJ_INT32));
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} else if (len > 2) {
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opj_idwt53_h_cas1(dwt->mem, sn, len, tiledp);
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}
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}
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#endif
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}
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#if defined(__SSE2__) && !defined(STANDARD_SLOW_VERSION)
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/* Conveniency macros to improve the readabilty of the formulas */
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#define LOADU(x) _mm_loadu_si128((const __m128i*)(x))
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#define STORE(x,y) _mm_store_si128((__m128i*)(x),(y))
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#define ADD(x,y) _mm_add_epi32((x),(y))
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#define ADD3(x,y,z) ADD(ADD(x,y),z)
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#define SUB(x,y) _mm_sub_epi32((x),(y))
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#define SAR(x,y) _mm_srai_epi32((x),(y))
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/** Vertical inverse 5x3 wavelet transform for 8 columns, when top-most
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* pixel is on even coordinate */
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static void opj_idwt53_v_cas0_8cols_SSE2(
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OPJ_INT32* tmp,
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const OPJ_INT32 sn,
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const OPJ_INT32 len,
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OPJ_INT32* tiledp_col,
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const OPJ_INT32 stride)
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{
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const OPJ_INT32* in_even = &tiledp_col[0];
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const OPJ_INT32* in_odd = &tiledp_col[sn * stride];
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OPJ_INT32 i, j;
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__m128i d1c_0, d1n_0, s1n_0, s0c_0, s0n_0;
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__m128i d1c_1, d1n_1, s1n_1, s0c_1, s0n_1;
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const __m128i two = _mm_set1_epi32(2);
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assert(len > 1);
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assert(PARALLEL_COLS_53 == 8);
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s1n_0 = LOADU(in_even + 0);
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s1n_1 = LOADU(in_even + 4);
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d1n_0 = LOADU(in_odd);
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d1n_1 = LOADU(in_odd + 4);
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/* s0n = s1n - ((d1n + 1) >> 1); <==> */
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/* s0n = s1n - ((d1n + d1n + 2) >> 2); */
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s0n_0 = SUB(s1n_0, SAR(ADD3(d1n_0, d1n_0, two), 2));
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s0n_1 = SUB(s1n_1, SAR(ADD3(d1n_1, d1n_1, two), 2));
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for (i = 0, j = 1; i < (len - 3); i += 2, j++) {
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d1c_0 = d1n_0;
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s0c_0 = s0n_0;
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d1c_1 = d1n_1;
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s0c_1 = s0n_1;
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s1n_0 = LOADU(in_even + j * stride);
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s1n_1 = LOADU(in_even + j * stride + 4);
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d1n_0 = LOADU(in_odd + j * stride);
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d1n_1 = LOADU(in_odd + j * stride + 4);
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/*s0n = s1n - ((d1c + d1n + 2) >> 2);*/
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s0n_0 = SUB(s1n_0, SAR(ADD3(d1c_0, d1n_0, two), 2));
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s0n_1 = SUB(s1n_1, SAR(ADD3(d1c_1, d1n_1, two), 2));
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STORE(tmp + PARALLEL_COLS_53 * (i + 0), s0c_0);
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STORE(tmp + PARALLEL_COLS_53 * (i + 0) + 4, s0c_1);
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/* d1c + ((s0c + s0n) >> 1) */
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STORE(tmp + PARALLEL_COLS_53 * (i + 1) + 0,
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ADD(d1c_0, SAR(ADD(s0c_0, s0n_0), 1)));
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STORE(tmp + PARALLEL_COLS_53 * (i + 1) + 4,
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ADD(d1c_1, SAR(ADD(s0c_1, s0n_1), 1)));
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}
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STORE(tmp + PARALLEL_COLS_53 * (i + 0) + 0, s0n_0);
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STORE(tmp + PARALLEL_COLS_53 * (i + 0) + 4, s0n_1);
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if (len & 1) {
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__m128i tmp_len_minus_1;
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s1n_0 = LOADU(in_even + ((len - 1) / 2) * stride);
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/* tmp_len_minus_1 = s1n - ((d1n + 1) >> 1); */
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tmp_len_minus_1 = SUB(s1n_0, SAR(ADD3(d1n_0, d1n_0, two), 2));
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STORE(tmp + 8 * (len - 1), tmp_len_minus_1);
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/* d1n + ((s0n + tmp_len_minus_1) >> 1) */
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STORE(tmp + 8 * (len - 2),
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ADD(d1n_0, SAR(ADD(s0n_0, tmp_len_minus_1), 1)));
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s1n_1 = LOADU(in_even + ((len - 1) / 2) * stride + 4);
|
||||
/* tmp_len_minus_1 = s1n - ((d1n + 1) >> 1); */
|
||||
tmp_len_minus_1 = SUB(s1n_1, SAR(ADD3(d1n_1, d1n_1, two), 2));
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 4, tmp_len_minus_1);
|
||||
/* d1n + ((s0n + tmp_len_minus_1) >> 1) */
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 2) + 4,
|
||||
ADD(d1n_1, SAR(ADD(s0n_1, tmp_len_minus_1), 1)));
|
||||
|
||||
|
||||
} else {
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 0, ADD(d1n_0, s0n_0));
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 4, ADD(d1n_1, s0n_1));
|
||||
}
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
memcpy(&tiledp_col[i * stride],
|
||||
&tmp[PARALLEL_COLS_53 * i],
|
||||
PARALLEL_COLS_53 * sizeof(OPJ_INT32));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** Vertical inverse 5x3 wavelet transform for 8 columns, when top-most
|
||||
* pixel is on odd coordinate */
|
||||
static void opj_idwt53_v_cas1_8cols_SSE2(
|
||||
OPJ_INT32* tmp,
|
||||
const OPJ_INT32 sn,
|
||||
const OPJ_INT32 len,
|
||||
OPJ_INT32* tiledp_col,
|
||||
const OPJ_INT32 stride)
|
||||
{
|
||||
OPJ_INT32 i, j;
|
||||
|
||||
__m128i s1_0, s2_0, dc_0, dn_0;
|
||||
__m128i s1_1, s2_1, dc_1, dn_1;
|
||||
const __m128i two = _mm_set1_epi32(2);
|
||||
|
||||
const OPJ_INT32* in_even = &tiledp_col[sn * stride];
|
||||
const OPJ_INT32* in_odd = &tiledp_col[0];
|
||||
|
||||
assert(len > 2);
|
||||
assert(PARALLEL_COLS_53 == 8);
|
||||
|
||||
s1_0 = LOADU(in_even + stride);
|
||||
/* in_odd[0] - ((in_even[0] + s1 + 2) >> 2); */
|
||||
dc_0 = _mm_sub_epi32(
|
||||
LOADU(in_odd + 0),
|
||||
SAR(ADD3(LOADU(in_even + 0), s1_0, two), 2));
|
||||
STORE(tmp + PARALLEL_COLS_53 * 0, ADD(LOADU(in_even + 0), dc_0));
|
||||
|
||||
s1_1 = LOADU(in_even + stride + 4);
|
||||
/* in_odd[0] - ((in_even[0] + s1 + 2) >> 2); */
|
||||
dc_1 = _mm_sub_epi32(
|
||||
LOADU(in_odd + 4),
|
||||
SAR(ADD3(LOADU(in_even + 4), s1_1, two), 2));
|
||||
STORE(tmp + PARALLEL_COLS_53 * 0 + 4, ADD(LOADU(in_even + 4), dc_1));
|
||||
|
||||
for (i = 1, j = 1; i < (len - 2 - !(len & 1)); i += 2, j++) {
|
||||
|
||||
s2_0 = LOADU(in_even + (j + 1) * stride);
|
||||
s2_1 = LOADU(in_even + (j + 1) * stride + 4);
|
||||
|
||||
/* dn = in_odd[j * stride] - ((s1 + s2 + 2) >> 2); */
|
||||
dn_0 = SUB(LOADU(in_odd + j * stride),
|
||||
SAR(ADD3(s1_0, s2_0, two), 2));
|
||||
dn_1 = SUB(LOADU(in_odd + j * stride + 4),
|
||||
SAR(ADD3(s1_1, s2_1, two), 2));
|
||||
|
||||
STORE(tmp + PARALLEL_COLS_53 * i, dc_0);
|
||||
STORE(tmp + PARALLEL_COLS_53 * i + 4, dc_1);
|
||||
|
||||
/* tmp[i + 1] = s1 + ((dn + dc) >> 1); */
|
||||
STORE(tmp + PARALLEL_COLS_53 * (i + 1) + 0,
|
||||
ADD(s1_0, SAR(ADD(dn_0, dc_0), 1)));
|
||||
STORE(tmp + PARALLEL_COLS_53 * (i + 1) + 4,
|
||||
ADD(s1_1, SAR(ADD(dn_1, dc_1), 1)));
|
||||
|
||||
dc_0 = dn_0;
|
||||
s1_0 = s2_0;
|
||||
dc_1 = dn_1;
|
||||
s1_1 = s2_1;
|
||||
}
|
||||
STORE(tmp + PARALLEL_COLS_53 * i, dc_0);
|
||||
STORE(tmp + PARALLEL_COLS_53 * i + 4, dc_1);
|
||||
|
||||
if (!(len & 1)) {
|
||||
/*dn = in_odd[(len / 2 - 1) * stride] - ((s1 + 1) >> 1); */
|
||||
dn_0 = SUB(LOADU(in_odd + (len / 2 - 1) * stride),
|
||||
SAR(ADD3(s1_0, s1_0, two), 2));
|
||||
dn_1 = SUB(LOADU(in_odd + (len / 2 - 1) * stride + 4),
|
||||
SAR(ADD3(s1_1, s1_1, two), 2));
|
||||
|
||||
/* tmp[len - 2] = s1 + ((dn + dc) >> 1); */
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 2) + 0,
|
||||
ADD(s1_0, SAR(ADD(dn_0, dc_0), 1)));
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 2) + 4,
|
||||
ADD(s1_1, SAR(ADD(dn_1, dc_1), 1)));
|
||||
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 0, dn_0);
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 4, dn_1);
|
||||
} else {
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 0, ADD(s1_0, dc_0));
|
||||
STORE(tmp + PARALLEL_COLS_53 * (len - 1) + 4, ADD(s1_1, dc_1));
|
||||
}
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
memcpy(&tiledp_col[i * stride],
|
||||
&tmp[PARALLEL_COLS_53 * i],
|
||||
PARALLEL_COLS_53 * sizeof(OPJ_INT32));
|
||||
}
|
||||
}
|
||||
|
||||
#undef LOADU
|
||||
#undef STORE
|
||||
#undef ADD
|
||||
#undef ADD3
|
||||
#undef SUB
|
||||
#undef SAR
|
||||
|
||||
#endif /* defined(__SSE2__) && !defined(STANDARD_SLOW_VERSION) */
|
||||
|
||||
#if !defined(STANDARD_SLOW_VERSION)
|
||||
/** Vertical inverse 5x3 wavelet transform for one column, when top-most
|
||||
* pixel is on even coordinate */
|
||||
static void opj_idwt3_v_cas0(OPJ_INT32* tmp,
|
||||
const OPJ_INT32 sn,
|
||||
const OPJ_INT32 len,
|
||||
OPJ_INT32* tiledp_col,
|
||||
const OPJ_INT32 stride)
|
||||
{
|
||||
OPJ_INT32 i, j;
|
||||
OPJ_INT32 d1c, d1n, s1n, s0c, s0n;
|
||||
|
||||
assert(len > 1);
|
||||
|
||||
/* Performs lifting in one single iteration. Saves memory */
|
||||
/* accesses and explicit interleaving. */
|
||||
|
||||
s1n = tiledp_col[0];
|
||||
d1n = tiledp_col[sn * stride];
|
||||
s0n = s1n - ((d1n + 1) >> 1);
|
||||
|
||||
for (i = 0, j = 0; i < (len - 3); i += 2, j++) {
|
||||
d1c = d1n;
|
||||
s0c = s0n;
|
||||
|
||||
s1n = tiledp_col[(j + 1) * stride];
|
||||
d1n = tiledp_col[(sn + j + 1) * stride];
|
||||
|
||||
s0n = s1n - ((d1c + d1n + 2) >> 2);
|
||||
|
||||
tmp[i ] = s0c;
|
||||
tmp[i + 1] = d1c + ((s0c + s0n) >> 1);
|
||||
}
|
||||
|
||||
tmp[i] = s0n;
|
||||
|
||||
if (len & 1) {
|
||||
tmp[len - 1] =
|
||||
tiledp_col[((len - 1) / 2) * stride] -
|
||||
((d1n + 1) >> 1);
|
||||
tmp[len - 2] = d1n + ((s0n + tmp[len - 1]) >> 1);
|
||||
} else {
|
||||
tmp[len - 1] = d1n + s0n;
|
||||
}
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
tiledp_col[i * stride] = tmp[i];
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** Vertical inverse 5x3 wavelet transform for one column, when top-most
|
||||
* pixel is on odd coordinate */
|
||||
static void opj_idwt3_v_cas1(OPJ_INT32* tmp,
|
||||
const OPJ_INT32 sn,
|
||||
const OPJ_INT32 len,
|
||||
OPJ_INT32* tiledp_col,
|
||||
const OPJ_INT32 stride)
|
||||
{
|
||||
OPJ_INT32 i, j;
|
||||
OPJ_INT32 s1, s2, dc, dn;
|
||||
const OPJ_INT32* in_even = &tiledp_col[sn * stride];
|
||||
const OPJ_INT32* in_odd = &tiledp_col[0];
|
||||
|
||||
assert(len > 2);
|
||||
|
||||
/* Performs lifting in one single iteration. Saves memory */
|
||||
/* accesses and explicit interleaving. */
|
||||
|
||||
s1 = in_even[stride];
|
||||
dc = in_odd[0] - ((in_even[0] + s1 + 2) >> 2);
|
||||
tmp[0] = in_even[0] + dc;
|
||||
for (i = 1, j = 1; i < (len - 2 - !(len & 1)); i += 2, j++) {
|
||||
|
||||
s2 = in_even[(j + 1) * stride];
|
||||
|
||||
dn = in_odd[j * stride] - ((s1 + s2 + 2) >> 2);
|
||||
tmp[i ] = dc;
|
||||
tmp[i + 1] = s1 + ((dn + dc) >> 1);
|
||||
|
||||
dc = dn;
|
||||
s1 = s2;
|
||||
}
|
||||
tmp[i] = dc;
|
||||
if (!(len & 1)) {
|
||||
dn = in_odd[(len / 2 - 1) * stride] - ((s1 + 1) >> 1);
|
||||
tmp[len - 2] = s1 + ((dn + dc) >> 1);
|
||||
tmp[len - 1] = dn;
|
||||
} else {
|
||||
tmp[len - 1] = s1 + dc;
|
||||
}
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
tiledp_col[i * stride] = tmp[i];
|
||||
}
|
||||
}
|
||||
#endif /* !defined(STANDARD_SLOW_VERSION) */
|
||||
|
||||
/* <summary> */
|
||||
/* Inverse vertical 5-3 wavelet transform in 1-D for several columns. */
|
||||
/* </summary> */
|
||||
/* Performs interleave, inverse wavelet transform and copy back to buffer */
|
||||
static void opj_idwt53_v(const opj_dwt_t *dwt,
|
||||
OPJ_INT32* tiledp_col,
|
||||
OPJ_INT32 stride,
|
||||
OPJ_INT32 nb_cols)
|
||||
{
|
||||
#ifdef STANDARD_SLOW_VERSION
|
||||
/* For documentation purpose */
|
||||
OPJ_INT32 k, c;
|
||||
for (c = 0; c < nb_cols; c ++) {
|
||||
opj_dwt_interleave_v(dwt, tiledp_col + c, stride);
|
||||
opj_dwt_decode_1(dwt);
|
||||
for (k = 0; k < dwt->sn + dwt->dn; ++k) {
|
||||
tiledp_col[c + k * stride] = dwt->mem[k];
|
||||
}
|
||||
}
|
||||
#else
|
||||
const OPJ_INT32 sn = dwt->sn;
|
||||
const OPJ_INT32 len = sn + dwt->dn;
|
||||
if (dwt->cas == 0) {
|
||||
/* If len == 1, unmodified value */
|
||||
|
||||
#if __SSE2__
|
||||
if (len > 1 && nb_cols == PARALLEL_COLS_53) {
|
||||
/* Same as below general case, except that thanks to SSE2 */
|
||||
/* we can efficently process 8 columns in parallel */
|
||||
opj_idwt53_v_cas0_8cols_SSE2(dwt->mem, sn, len, tiledp_col, stride);
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
if (len > 1) {
|
||||
OPJ_INT32 c;
|
||||
for (c = 0; c < nb_cols; c++, tiledp_col++) {
|
||||
opj_idwt3_v_cas0(dwt->mem, sn, len, tiledp_col, stride);
|
||||
}
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
if (len == 1) {
|
||||
OPJ_INT32 c;
|
||||
for (c = 0; c < nb_cols; c++, tiledp_col++) {
|
||||
tiledp_col[0] /= 2;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
if (len == 2) {
|
||||
OPJ_INT32 c;
|
||||
OPJ_INT32* out = dwt->mem;
|
||||
for (c = 0; c < nb_cols; c++, tiledp_col++) {
|
||||
OPJ_INT32 i;
|
||||
const OPJ_INT32* in_even = &tiledp_col[sn * stride];
|
||||
const OPJ_INT32* in_odd = &tiledp_col[0];
|
||||
|
||||
out[1] = in_odd[0] - ((in_even[0] + 1) >> 1);
|
||||
out[0] = in_even[0] + out[1];
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
tiledp_col[i * stride] = out[i];
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef __SSE2__
|
||||
if (len > 2 && nb_cols == PARALLEL_COLS_53) {
|
||||
/* Same as below general case, except that thanks to SSE2 */
|
||||
/* we can efficently process 8 columns in parallel */
|
||||
opj_idwt53_v_cas1_8cols_SSE2(dwt->mem, sn, len, tiledp_col, stride);
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
if (len > 2) {
|
||||
OPJ_INT32 c;
|
||||
for (c = 0; c < nb_cols; c++, tiledp_col++) {
|
||||
opj_idwt3_v_cas1(dwt->mem, sn, len, tiledp_col, stride);
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/* <summary> */
|
||||
/* Forward 9-7 wavelet transform in 1-D. */
|
||||
/* </summary> */
|
||||
|
|
@ -542,7 +1102,7 @@ OPJ_BOOL opj_dwt_encode(opj_tcd_tilecomp_t * tilec)
|
|||
OPJ_BOOL opj_dwt_decode(opj_thread_pool_t* tp, opj_tcd_tilecomp_t* tilec,
|
||||
OPJ_UINT32 numres)
|
||||
{
|
||||
return opj_dwt_decode_tile(tp, tilec, numres, &opj_dwt_decode_1);
|
||||
return opj_dwt_decode_tile(tp, tilec, numres);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -639,7 +1199,6 @@ static OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* OPJ_RESTRICT r,
|
|||
|
||||
typedef struct {
|
||||
opj_dwt_t h;
|
||||
DWT1DFN dwt_1D;
|
||||
OPJ_UINT32 rw;
|
||||
OPJ_UINT32 w;
|
||||
OPJ_INT32 * OPJ_RESTRICT tiledp;
|
||||
|
|
@ -655,9 +1214,7 @@ static void opj_dwt_decode_h_func(void* user_data, opj_tls_t* tls)
|
|||
|
||||
job = (opj_dwd_decode_h_job_t*)user_data;
|
||||
for (j = job->min_j; j < job->max_j; j++) {
|
||||
opj_dwt_interleave_h(&job->h, &job->tiledp[j * job->w]);
|
||||
(job->dwt_1D)(&job->h);
|
||||
memcpy(&job->tiledp[j * job->w], job->h.mem, job->rw * sizeof(OPJ_INT32));
|
||||
opj_idwt53_h(&job->h, &job->tiledp[j * job->w]);
|
||||
}
|
||||
|
||||
opj_aligned_free(job->h.mem);
|
||||
|
|
@ -666,7 +1223,6 @@ static void opj_dwt_decode_h_func(void* user_data, opj_tls_t* tls)
|
|||
|
||||
typedef struct {
|
||||
opj_dwt_t v;
|
||||
DWT1DFN dwt_1D;
|
||||
OPJ_UINT32 rh;
|
||||
OPJ_UINT32 w;
|
||||
OPJ_INT32 * OPJ_RESTRICT tiledp;
|
||||
|
|
@ -681,14 +1237,14 @@ static void opj_dwt_decode_v_func(void* user_data, opj_tls_t* tls)
|
|||
(void)tls;
|
||||
|
||||
job = (opj_dwd_decode_v_job_t*)user_data;
|
||||
for (j = job->min_j; j < job->max_j; j++) {
|
||||
OPJ_UINT32 k;
|
||||
opj_dwt_interleave_v(&job->v, &job->tiledp[j], (OPJ_INT32)job->w);
|
||||
(job->dwt_1D)(&job->v);
|
||||
for (k = 0; k < job->rh; ++k) {
|
||||
job->tiledp[k * job->w + j] = job->v.mem[k];
|
||||
}
|
||||
for (j = job->min_j; j + PARALLEL_COLS_53 <= job->max_j;
|
||||
j += PARALLEL_COLS_53) {
|
||||
opj_idwt53_v(&job->v, &job->tiledp[j], (OPJ_INT32)job->w,
|
||||
PARALLEL_COLS_53);
|
||||
}
|
||||
if (j < job->max_j)
|
||||
opj_idwt53_v(&job->v, &job->tiledp[j], (OPJ_INT32)job->w,
|
||||
(OPJ_INT32)(job->max_j - j));
|
||||
|
||||
opj_aligned_free(job->v.mem);
|
||||
opj_free(job);
|
||||
|
|
@ -699,7 +1255,7 @@ static void opj_dwt_decode_v_func(void* user_data, opj_tls_t* tls)
|
|||
/* Inverse wavelet transform in 2-D. */
|
||||
/* </summary> */
|
||||
static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
||||
opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres, DWT1DFN dwt_1D)
|
||||
opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres)
|
||||
{
|
||||
opj_dwt_t h;
|
||||
opj_dwt_t v;
|
||||
|
|
@ -721,11 +1277,14 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
|||
num_threads = opj_thread_pool_get_thread_count(tp);
|
||||
h_mem_size = opj_dwt_max_resolution(tr, numres);
|
||||
/* overflow check */
|
||||
if (h_mem_size > (SIZE_MAX / sizeof(OPJ_INT32))) {
|
||||
if (h_mem_size > (SIZE_MAX / PARALLEL_COLS_53 / sizeof(OPJ_INT32))) {
|
||||
/* FIXME event manager error callback */
|
||||
return OPJ_FALSE;
|
||||
}
|
||||
h_mem_size *= sizeof(OPJ_INT32);
|
||||
/* We need PARALLEL_COLS_53 times the height of the array, */
|
||||
/* since for the vertical pass */
|
||||
/* we process PARALLEL_COLS_53 columns at a time */
|
||||
h_mem_size *= PARALLEL_COLS_53 * sizeof(OPJ_INT32);
|
||||
h.mem = (OPJ_INT32*)opj_aligned_malloc(h_mem_size);
|
||||
if (! h.mem) {
|
||||
/* FIXME event manager error callback */
|
||||
|
|
@ -750,9 +1309,7 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
|||
|
||||
if (num_threads <= 1 || rh <= 1) {
|
||||
for (j = 0; j < rh; ++j) {
|
||||
opj_dwt_interleave_h(&h, &tiledp[j * w]);
|
||||
(dwt_1D)(&h);
|
||||
memcpy(&tiledp[j * w], h.mem, rw * sizeof(OPJ_INT32));
|
||||
opj_idwt53_h(&h, &tiledp[j * w]);
|
||||
}
|
||||
} else {
|
||||
OPJ_UINT32 num_jobs = (OPJ_UINT32)num_threads;
|
||||
|
|
@ -777,7 +1334,6 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
|||
return OPJ_FALSE;
|
||||
}
|
||||
job->h = h;
|
||||
job->dwt_1D = dwt_1D;
|
||||
job->rw = rw;
|
||||
job->w = w;
|
||||
job->tiledp = tiledp;
|
||||
|
|
@ -803,14 +1359,12 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
|||
v.cas = tr->y0 % 2;
|
||||
|
||||
if (num_threads <= 1 || rw <= 1) {
|
||||
for (j = 0; j < rw; ++j) {
|
||||
OPJ_UINT32 k;
|
||||
|
||||
opj_dwt_interleave_v(&v, &tiledp[j], (OPJ_INT32)w);
|
||||
(dwt_1D)(&v);
|
||||
for (k = 0; k < rh; ++k) {
|
||||
tiledp[k * w + j] = v.mem[k];
|
||||
}
|
||||
for (j = 0; j + PARALLEL_COLS_53 <= rw;
|
||||
j += PARALLEL_COLS_53) {
|
||||
opj_idwt53_v(&v, &tiledp[j], (OPJ_INT32)w, PARALLEL_COLS_53);
|
||||
}
|
||||
if (j < rw) {
|
||||
opj_idwt53_v(&v, &tiledp[j], (OPJ_INT32)w, (OPJ_INT32)(rw - j));
|
||||
}
|
||||
} else {
|
||||
OPJ_UINT32 num_jobs = (OPJ_UINT32)num_threads;
|
||||
|
|
@ -835,7 +1389,6 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
|
|||
return OPJ_FALSE;
|
||||
}
|
||||
job->v = v;
|
||||
job->dwt_1D = dwt_1D;
|
||||
job->rh = rh;
|
||||
job->w = w;
|
||||
job->tiledp = tiledp;
|
||||
|
|
|
|||
Loading…
Reference in New Issue