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+/*
+ * The copyright in this software is being made available under the 2-clauses
+ * BSD License, included below. This software may be subject to other third
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux
+ * Copyright (c) 2003-2014, Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2007, Jonathan Ballard <dzonatas@dzonux.net>
+ * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef __SSE__
+#include <xmmintrin.h>
+#endif
+
+#include "opj_includes.h"
+
+/** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
+/*@{*/
+
+#define OPJ_WS(i) v->mem[(i)*2]
+#define OPJ_WD(i) v->mem[(1+(i)*2)]
+
+/** @name Local data structures */
+/*@{*/
+
+typedef struct dwt_local {
+ OPJ_INT32* mem;
+ OPJ_INT32 dn;
+ OPJ_INT32 sn;
+ OPJ_INT32 cas;
+} opj_dwt_t;
+
+typedef union {
+ OPJ_FLOAT32 f[4];
+} opj_v4_t;
+
+typedef struct v4dwt_local {
+ opj_v4_t* wavelet ;
+ OPJ_INT32 dn ;
+ OPJ_INT32 sn ;
+ OPJ_INT32 cas ;
+} opj_v4dwt_t ;
+
+static const OPJ_FLOAT32 opj_dwt_alpha = 1.586134342f; /* 12994 */
+static const OPJ_FLOAT32 opj_dwt_beta = 0.052980118f; /* 434 */
+static const OPJ_FLOAT32 opj_dwt_gamma = -0.882911075f; /* -7233 */
+static const OPJ_FLOAT32 opj_dwt_delta = -0.443506852f; /* -3633 */
+
+static const OPJ_FLOAT32 opj_K = 1.230174105f; /* 10078 */
+static const OPJ_FLOAT32 opj_c13318 = 1.625732422f;
+
+/*@}*/
+
+/**
+Virtual function type for wavelet transform in 1-D
+*/
+typedef void (*DWT1DFN)(opj_dwt_t* v);
+
+/** @name Local static functions */
+/*@{*/
+
+/**
+Forward lazy transform (horizontal)
+*/
+static void opj_dwt_deinterleave_h(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
+/**
+Forward lazy transform (vertical)
+*/
+static void opj_dwt_deinterleave_v(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 x, OPJ_INT32 cas);
+/**
+Inverse lazy transform (horizontal)
+*/
+static void opj_dwt_interleave_h(opj_dwt_t* h, OPJ_INT32 *a);
+/**
+Inverse lazy transform (vertical)
+*/
+static void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x);
+/**
+Forward 5-3 wavelet transform in 1-D
+*/
+static void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
+/**
+Inverse 5-3 wavelet transform in 1-D
+*/
+static void opj_dwt_decode_1(opj_dwt_t *v);
+static void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
+/**
+Forward 9-7 wavelet transform in 1-D
+*/
+static void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas);
+/**
+Explicit calculation of the Quantization Stepsizes
+*/
+static void opj_dwt_encode_stepsize(OPJ_INT32 stepsize, OPJ_INT32 numbps, opj_stepsize_t *bandno_stepsize);
+/**
+Inverse wavelet transform in 2-D.
+*/
+static OPJ_BOOL opj_dwt_decode_tile(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i, DWT1DFN fn);
+
+static OPJ_BOOL opj_dwt_encode_procedure( opj_tcd_tilecomp_t * tilec,
+ void (*p_function)(OPJ_INT32 *, OPJ_INT32,OPJ_INT32,OPJ_INT32) );
+
+static OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* restrict r, OPJ_UINT32 i);
+
+/* <summary> */
+/* Inverse 9-7 wavelet transform in 1-D. */
+/* </summary> */
+static void opj_v4dwt_decode(opj_v4dwt_t* restrict dwt);
+
+static void opj_v4dwt_interleave_h(opj_v4dwt_t* restrict w, OPJ_FLOAT32* restrict a, OPJ_INT32 x, OPJ_INT32 size);
+
+static void opj_v4dwt_interleave_v(opj_v4dwt_t* restrict v , OPJ_FLOAT32* restrict a , OPJ_INT32 x, OPJ_INT32 nb_elts_read);
+
+#ifdef __SSE__
+static void opj_v4dwt_decode_step1_sse(opj_v4_t* w, OPJ_INT32 count, const __m128 c);
+
+static void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k, OPJ_INT32 m, __m128 c);
+
+#else
+static void opj_v4dwt_decode_step1(opj_v4_t* w, OPJ_INT32 count, const OPJ_FLOAT32 c);
+
+static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k, OPJ_INT32 m, OPJ_FLOAT32 c);
+
+#endif
+
+/*@}*/
+
+/*@}*/
+
+#define OPJ_S(i) a[(i)*2]
+#define OPJ_D(i) a[(1+(i)*2)]
+#define OPJ_S_(i) ((i)<0?OPJ_S(0):((i)>=sn?OPJ_S(sn-1):OPJ_S(i)))
+#define OPJ_D_(i) ((i)<0?OPJ_D(0):((i)>=dn?OPJ_D(dn-1):OPJ_D(i)))
+/* new */
+#define OPJ_SS_(i) ((i)<0?OPJ_S(0):((i)>=dn?OPJ_S(dn-1):OPJ_S(i)))
+#define OPJ_DD_(i) ((i)<0?OPJ_D(0):((i)>=sn?OPJ_D(sn-1):OPJ_D(i)))
+
+/* <summary> */
+/* This table contains the norms of the 5-3 wavelets for different bands. */
+/* </summary> */
+static const OPJ_FLOAT64 opj_dwt_norms[4][10] = {
+ {1.000, 1.500, 2.750, 5.375, 10.68, 21.34, 42.67, 85.33, 170.7, 341.3},
+ {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
+ {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
+ {.7186, .9218, 1.586, 3.043, 6.019, 12.01, 24.00, 47.97, 95.93}
+};
+
+/* <summary> */
+/* This table contains the norms of the 9-7 wavelets for different bands. */
+/* </summary> */
+static const OPJ_FLOAT64 opj_dwt_norms_real[4][10] = {
+ {1.000, 1.965, 4.177, 8.403, 16.90, 33.84, 67.69, 135.3, 270.6, 540.9},
+ {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
+ {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
+ {2.080, 3.865, 8.307, 17.18, 34.71, 69.59, 139.3, 278.6, 557.2}
+};
+
+/*
+==========================================================
+ local functions
+==========================================================
+*/
+
+/* <summary> */
+/* Forward lazy transform (horizontal). */
+/* </summary> */
+void opj_dwt_deinterleave_h(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
+ OPJ_INT32 i;
+ OPJ_INT32 * l_dest = b;
+ OPJ_INT32 * l_src = a+cas;
+
+ for (i=0; i<sn; ++i) {
+ *l_dest++ = *l_src;
+ l_src += 2;
+ }
+
+ l_dest = b + sn;
+ l_src = a + 1 - cas;
+
+ for (i=0; i<dn; ++i) {
+ *l_dest++=*l_src;
+ l_src += 2;
+ }
+}
+
+/* <summary> */
+/* Forward lazy transform (vertical). */
+/* </summary> */
+void opj_dwt_deinterleave_v(OPJ_INT32 *a, OPJ_INT32 *b, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 x, OPJ_INT32 cas) {
+ OPJ_INT32 i = sn;
+ OPJ_INT32 * l_dest = b;
+ OPJ_INT32 * l_src = a+cas;
+
+ while (i--) {
+ *l_dest = *l_src;
+ l_dest += x;
+ l_src += 2;
+ } /* b[i*x]=a[2*i+cas]; */
+
+ l_dest = b + sn * x;
+ l_src = a + 1 - cas;
+
+ i = dn;
+ while (i--) {
+ *l_dest = *l_src;
+ l_dest += x;
+ l_src += 2;
+ } /*b[(sn+i)*x]=a[(2*i+1-cas)];*/
+}
+
+/* <summary> */
+/* Inverse lazy transform (horizontal). */
+/* </summary> */
+void opj_dwt_interleave_h(opj_dwt_t* h, OPJ_INT32 *a) {
+ OPJ_INT32 *ai = a;
+ OPJ_INT32 *bi = h->mem + h->cas;
+ OPJ_INT32 i = h->sn;
+ while( i-- ) {
+ *bi = *(ai++);
+ bi += 2;
+ }
+ ai = a + h->sn;
+ bi = h->mem + 1 - h->cas;
+ i = h->dn ;
+ while( i-- ) {
+ *bi = *(ai++);
+ bi += 2;
+ }
+}
+
+/* <summary> */
+/* Inverse lazy transform (vertical). */
+/* </summary> */
+void opj_dwt_interleave_v(opj_dwt_t* v, OPJ_INT32 *a, OPJ_INT32 x) {
+ OPJ_INT32 *ai = a;
+ OPJ_INT32 *bi = v->mem + v->cas;
+ OPJ_INT32 i = v->sn;
+ while( i-- ) {
+ *bi = *ai;
+ bi += 2;
+ ai += x;
+ }
+ ai = a + (v->sn * x);
+ bi = v->mem + 1 - v->cas;
+ i = v->dn ;
+ while( i-- ) {
+ *bi = *ai;
+ bi += 2;
+ ai += x;
+ }
+}
+
+
+/* <summary> */
+/* Forward 5-3 wavelet transform in 1-D. */
+/* </summary> */
+void opj_dwt_encode_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
+ OPJ_INT32 i;
+
+ if (!cas) {
+ if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
+ for (i = 0; i < dn; i++) OPJ_D(i) -= (OPJ_S_(i) + OPJ_S_(i + 1)) >> 1;
+ for (i = 0; i < sn; i++) OPJ_S(i) += (OPJ_D_(i - 1) + OPJ_D_(i) + 2) >> 2;
+ }
+ } else {
+ if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
+ OPJ_S(0) *= 2;
+ else {
+ for (i = 0; i < dn; i++) OPJ_S(i) -= (OPJ_DD_(i) + OPJ_DD_(i - 1)) >> 1;
+ for (i = 0; i < sn; i++) OPJ_D(i) += (OPJ_SS_(i) + OPJ_SS_(i + 1) + 2) >> 2;
+ }
+ }
+}
+
+/* <summary> */
+/* Inverse 5-3 wavelet transform in 1-D. */
+/* </summary> */
+void opj_dwt_decode_1_(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
+ OPJ_INT32 i;
+
+ if (!cas) {
+ if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
+ for (i = 0; i < sn; i++) OPJ_S(i) -= (OPJ_D_(i - 1) + OPJ_D_(i) + 2) >> 2;
+ for (i = 0; i < dn; i++) OPJ_D(i) += (OPJ_S_(i) + OPJ_S_(i + 1)) >> 1;
+ }
+ } else {
+ if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
+ OPJ_S(0) /= 2;
+ else {
+ for (i = 0; i < sn; i++) OPJ_D(i) -= (OPJ_SS_(i) + OPJ_SS_(i + 1) + 2) >> 2;
+ for (i = 0; i < dn; i++) OPJ_S(i) += (OPJ_DD_(i) + OPJ_DD_(i - 1)) >> 1;
+ }
+ }
+}
+
+/* <summary> */
+/* Inverse 5-3 wavelet transform in 1-D. */
+/* </summary> */
+void opj_dwt_decode_1(opj_dwt_t *v) {
+ opj_dwt_decode_1_(v->mem, v->dn, v->sn, v->cas);
+}
+
+/* <summary> */
+/* Forward 9-7 wavelet transform in 1-D. */
+/* </summary> */
+void opj_dwt_encode_1_real(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn, OPJ_INT32 cas) {
+ OPJ_INT32 i;
+ if (!cas) {
+ if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
+ for (i = 0; i < dn; i++)
+ OPJ_D(i) -= opj_int_fix_mul(OPJ_S_(i) + OPJ_S_(i + 1), 12993);
+ for (i = 0; i < sn; i++)
+ OPJ_S(i) -= opj_int_fix_mul(OPJ_D_(i - 1) + OPJ_D_(i), 434);
+ for (i = 0; i < dn; i++)
+ OPJ_D(i) += opj_int_fix_mul(OPJ_S_(i) + OPJ_S_(i + 1), 7233);
+ for (i = 0; i < sn; i++)
+ OPJ_S(i) += opj_int_fix_mul(OPJ_D_(i - 1) + OPJ_D_(i), 3633);
+ for (i = 0; i < dn; i++)
+ OPJ_D(i) = opj_int_fix_mul(OPJ_D(i), 5038); /*5038 */
+ for (i = 0; i < sn; i++)
+ OPJ_S(i) = opj_int_fix_mul(OPJ_S(i), 6659); /*6660 */
+ }
+ } else {
+ if ((sn > 0) || (dn > 1)) { /* NEW : CASE ONE ELEMENT */
+ for (i = 0; i < dn; i++)
+ OPJ_S(i) -= opj_int_fix_mul(OPJ_DD_(i) + OPJ_DD_(i - 1), 12993);
+ for (i = 0; i < sn; i++)
+ OPJ_D(i) -= opj_int_fix_mul(OPJ_SS_(i) + OPJ_SS_(i + 1), 434);
+ for (i = 0; i < dn; i++)
+ OPJ_S(i) += opj_int_fix_mul(OPJ_DD_(i) + OPJ_DD_(i - 1), 7233);
+ for (i = 0; i < sn; i++)
+ OPJ_D(i) += opj_int_fix_mul(OPJ_SS_(i) + OPJ_SS_(i + 1), 3633);
+ for (i = 0; i < dn; i++)
+ OPJ_S(i) = opj_int_fix_mul(OPJ_S(i), 5038); /*5038 */
+ for (i = 0; i < sn; i++)
+ OPJ_D(i) = opj_int_fix_mul(OPJ_D(i), 6659); /*6660 */
+ }
+ }
+}
+
+void opj_dwt_encode_stepsize(OPJ_INT32 stepsize, OPJ_INT32 numbps, opj_stepsize_t *bandno_stepsize) {
+ OPJ_INT32 p, n;
+ p = opj_int_floorlog2(stepsize) - 13;
+ n = 11 - opj_int_floorlog2(stepsize);
+ bandno_stepsize->mant = (n < 0 ? stepsize >> -n : stepsize << n) & 0x7ff;
+ bandno_stepsize->expn = numbps - p;
+}
+
+/*
+==========================================================
+ DWT interface
+==========================================================
+*/
+
+
+/* <summary> */
+/* Forward 5-3 wavelet transform in 2-D. */
+/* </summary> */
+INLINE OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,void (*p_function)(OPJ_INT32 *, OPJ_INT32,OPJ_INT32,OPJ_INT32) )
+{
+ OPJ_INT32 i, j, k;
+ OPJ_INT32 *a = 00;
+ OPJ_INT32 *aj = 00;
+ OPJ_INT32 *bj = 00;
+ OPJ_INT32 w, l;
+
+ OPJ_INT32 rw; /* width of the resolution level computed */
+ OPJ_INT32 rh; /* height of the resolution level computed */
+ OPJ_UINT32 l_data_size;
+
+ opj_tcd_resolution_t * l_cur_res = 0;
+ opj_tcd_resolution_t * l_last_res = 0;
+
+ w = tilec->x1-tilec->x0;
+ l = (OPJ_INT32)tilec->numresolutions-1;
+ a = tilec->data;
+
+ l_cur_res = tilec->resolutions + l;
+ l_last_res = l_cur_res - 1;
+
+ l_data_size = opj_dwt_max_resolution( tilec->resolutions,tilec->numresolutions) * (OPJ_UINT32)sizeof(OPJ_INT32);
+ bj = (OPJ_INT32*)opj_malloc((size_t)l_data_size);
+ if (! bj) {
+ return OPJ_FALSE;
+ }
+ i = l;
+
+ while (i--) {
+ OPJ_INT32 rw1; /* width of the resolution level once lower than computed one */
+ OPJ_INT32 rh1; /* height of the resolution level once lower than computed one */
+ OPJ_INT32 cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
+ OPJ_INT32 cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
+ OPJ_INT32 dn, sn;
+
+ rw = l_cur_res->x1 - l_cur_res->x0;
+ rh = l_cur_res->y1 - l_cur_res->y0;
+ rw1 = l_last_res->x1 - l_last_res->x0;
+ rh1 = l_last_res->y1 - l_last_res->y0;
+
+ cas_row = l_cur_res->x0 & 1;
+ cas_col = l_cur_res->y0 & 1;
+
+ sn = rh1;
+ dn = rh - rh1;
+ for (j = 0; j < rw; ++j) {
+ aj = a + j;
+ for (k = 0; k < rh; ++k) {
+ bj[k] = aj[k*w];
+ }
+
+ (*p_function) (bj, dn, sn, cas_col);
+
+ opj_dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
+ }
+
+ sn = rw1;
+ dn = rw - rw1;
+
+ for (j = 0; j < rh; j++) {
+ aj = a + j * w;
+ for (k = 0; k < rw; k++) bj[k] = aj[k];
+ (*p_function) (bj, dn, sn, cas_row);
+ opj_dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
+ }
+
+ l_cur_res = l_last_res;
+
+ --l_last_res;
+ }
+
+ opj_free(bj);
+ return OPJ_TRUE;
+}
+
+/* Forward 5-3 wavelet transform in 2-D. */
+/* </summary> */
+OPJ_BOOL opj_dwt_encode(opj_tcd_tilecomp_t * tilec)
+{
+ return opj_dwt_encode_procedure(tilec,opj_dwt_encode_1);
+}
+
+/* <summary> */
+/* Inverse 5-3 wavelet transform in 2-D. */
+/* </summary> */
+OPJ_BOOL opj_dwt_decode(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres) {
+ return opj_dwt_decode_tile(tilec, numres, &opj_dwt_decode_1);
+}
+
+
+/* <summary> */
+/* Get gain of 5-3 wavelet transform. */
+/* </summary> */
+OPJ_UINT32 opj_dwt_getgain(OPJ_UINT32 orient) {
+ if (orient == 0)
+ return 0;
+ if (orient == 1 || orient == 2)
+ return 1;
+ return 2;
+}
+
+/* <summary> */
+/* Get norm of 5-3 wavelet. */
+/* </summary> */
+OPJ_FLOAT64 opj_dwt_getnorm(OPJ_UINT32 level, OPJ_UINT32 orient) {
+ return opj_dwt_norms[orient][level];
+}
+
+/* <summary> */
+/* Forward 9-7 wavelet transform in 2-D. */
+/* </summary> */
+OPJ_BOOL opj_dwt_encode_real(opj_tcd_tilecomp_t * tilec)
+{
+ return opj_dwt_encode_procedure(tilec,opj_dwt_encode_1_real);
+}
+
+/* <summary> */
+/* Get gain of 9-7 wavelet transform. */
+/* </summary> */
+OPJ_UINT32 opj_dwt_getgain_real(OPJ_UINT32 orient) {
+ (void)orient;
+ return 0;
+}
+
+/* <summary> */
+/* Get norm of 9-7 wavelet. */
+/* </summary> */
+OPJ_FLOAT64 opj_dwt_getnorm_real(OPJ_UINT32 level, OPJ_UINT32 orient) {
+ return opj_dwt_norms_real[orient][level];
+}
+
+void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec) {
+ OPJ_UINT32 numbands, bandno;
+ numbands = 3 * tccp->numresolutions - 2;
+ for (bandno = 0; bandno < numbands; bandno++) {
+ OPJ_FLOAT64 stepsize;
+ OPJ_UINT32 resno, level, orient, gain;
+
+ resno = (bandno == 0) ? 0 : ((bandno - 1) / 3 + 1);
+ orient = (bandno == 0) ? 0 : ((bandno - 1) % 3 + 1);
+ level = tccp->numresolutions - 1 - resno;
+ gain = (tccp->qmfbid == 0) ? 0 : ((orient == 0) ? 0 : (((orient == 1) || (orient == 2)) ? 1 : 2));
+ if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
+ stepsize = 1.0;
+ } else {
+ OPJ_FLOAT64 norm = opj_dwt_norms_real[orient][level];
+ stepsize = (1 << (gain)) / norm;
+ }
+ opj_dwt_encode_stepsize((OPJ_INT32) floor(stepsize * 8192.0), (OPJ_INT32)(prec + gain), &tccp->stepsizes[bandno]);
+ }
+}
+
+/* <summary> */
+/* Determine maximum computed resolution level for inverse wavelet transform */
+/* </summary> */
+OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* restrict r, OPJ_UINT32 i) {
+ OPJ_UINT32 mr = 0;
+ OPJ_UINT32 w;
+ while( --i ) {
+ ++r;
+ if( mr < ( w = (OPJ_UINT32)(r->x1 - r->x0) ) )
+ mr = w ;
+ if( mr < ( w = (OPJ_UINT32)(r->y1 - r->y0) ) )
+ mr = w ;
+ }
+ return mr ;
+}
+
+/* <summary> */
+/* Inverse wavelet transform in 2-D. */
+/* </summary> */
+OPJ_BOOL opj_dwt_decode_tile(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres, DWT1DFN dwt_1D) {
+ opj_dwt_t h;
+ opj_dwt_t v;
+
+ opj_tcd_resolution_t* tr = tilec->resolutions;
+
+ OPJ_UINT32 rw = (OPJ_UINT32)(tr->x1 - tr->x0); /* width of the resolution level computed */
+ OPJ_UINT32 rh = (OPJ_UINT32)(tr->y1 - tr->y0); /* height of the resolution level computed */
+
+ OPJ_UINT32 w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
+
+ h.mem = (OPJ_INT32*)
+ opj_aligned_malloc(opj_dwt_max_resolution(tr, numres) * sizeof(OPJ_INT32));
+ if (! h.mem){
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+
+ v.mem = h.mem;
+
+ while( --numres) {
+ OPJ_INT32 * restrict tiledp = tilec->data;
+ OPJ_UINT32 j;
+
+ ++tr;
+ h.sn = (OPJ_INT32)rw;
+ v.sn = (OPJ_INT32)rh;
+
+ rw = (OPJ_UINT32)(tr->x1 - tr->x0);
+ rh = (OPJ_UINT32)(tr->y1 - tr->y0);
+
+ h.dn = (OPJ_INT32)(rw - (OPJ_UINT32)h.sn);
+ h.cas = tr->x0 % 2;
+
+ 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));
+ }
+
+ v.dn = (OPJ_INT32)(rh - (OPJ_UINT32)v.sn);
+ v.cas = tr->y0 % 2;
+
+ 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];
+ }
+ }
+ }
+ opj_aligned_free(h.mem);
+ return OPJ_TRUE;
+}
+
+void opj_v4dwt_interleave_h(opj_v4dwt_t* restrict w, OPJ_FLOAT32* restrict a, OPJ_INT32 x, OPJ_INT32 size){
+ OPJ_FLOAT32* restrict bi = (OPJ_FLOAT32*) (w->wavelet + w->cas);
+ OPJ_INT32 count = w->sn;
+ OPJ_INT32 i, k;
+
+ for(k = 0; k < 2; ++k){
+ if ( count + 3 * x < size && ((size_t) a & 0x0f) == 0 && ((size_t) bi & 0x0f) == 0 && (x & 0x0f) == 0 ) {
+ /* Fast code path */
+ for(i = 0; i < count; ++i){
+ OPJ_INT32 j = i;
+ bi[i*8 ] = a[j];
+ j += x;
+ bi[i*8 + 1] = a[j];
+ j += x;
+ bi[i*8 + 2] = a[j];
+ j += x;
+ bi[i*8 + 3] = a[j];
+ }
+ }
+ else {
+ /* Slow code path */
+ for(i = 0; i < count; ++i){
+ OPJ_INT32 j = i;
+ bi[i*8 ] = a[j];
+ j += x;
+ if(j >= size) continue;
+ bi[i*8 + 1] = a[j];
+ j += x;
+ if(j >= size) continue;
+ bi[i*8 + 2] = a[j];
+ j += x;
+ if(j >= size) continue;
+ bi[i*8 + 3] = a[j]; /* This one*/
+ }
+ }
+
+ bi = (OPJ_FLOAT32*) (w->wavelet + 1 - w->cas);
+ a += w->sn;
+ size -= w->sn;
+ count = w->dn;
+ }
+}
+
+void opj_v4dwt_interleave_v(opj_v4dwt_t* restrict v , OPJ_FLOAT32* restrict a , OPJ_INT32 x, OPJ_INT32 nb_elts_read){
+ opj_v4_t* restrict bi = v->wavelet + v->cas;
+ OPJ_INT32 i;
+
+ for(i = 0; i < v->sn; ++i){
+ memcpy(&bi[i*2], &a[i*x], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
+ }
+
+ a += v->sn * x;
+ bi = v->wavelet + 1 - v->cas;
+
+ for(i = 0; i < v->dn; ++i){
+ memcpy(&bi[i*2], &a[i*x], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
+ }
+}
+
+#ifdef __SSE__
+
+void opj_v4dwt_decode_step1_sse(opj_v4_t* w, OPJ_INT32 count, const __m128 c){
+ __m128* restrict vw = (__m128*) w;
+ OPJ_INT32 i;
+ /* 4x unrolled loop */
+ for(i = 0; i < count >> 2; ++i){
+ *vw = _mm_mul_ps(*vw, c);
+ vw += 2;
+ *vw = _mm_mul_ps(*vw, c);
+ vw += 2;
+ *vw = _mm_mul_ps(*vw, c);
+ vw += 2;
+ *vw = _mm_mul_ps(*vw, c);
+ vw += 2;
+ }
+ count &= 3;
+ for(i = 0; i < count; ++i){
+ *vw = _mm_mul_ps(*vw, c);
+ vw += 2;
+ }
+}
+
+void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k, OPJ_INT32 m, __m128 c){
+ __m128* restrict vl = (__m128*) l;
+ __m128* restrict vw = (__m128*) w;
+ OPJ_INT32 i;
+ __m128 tmp1, tmp2, tmp3;
+ tmp1 = vl[0];
+ for(i = 0; i < m; ++i){
+ tmp2 = vw[-1];
+ tmp3 = vw[ 0];
+ vw[-1] = _mm_add_ps(tmp2, _mm_mul_ps(_mm_add_ps(tmp1, tmp3), c));
+ tmp1 = tmp3;
+ vw += 2;
+ }
+ vl = vw - 2;
+ if(m >= k){
+ return;
+ }
+ c = _mm_add_ps(c, c);
+ c = _mm_mul_ps(c, vl[0]);
+ for(; m < k; ++m){
+ __m128 tmp = vw[-1];
+ vw[-1] = _mm_add_ps(tmp, c);
+ vw += 2;
+ }
+}
+
+#else
+
+void opj_v4dwt_decode_step1(opj_v4_t* w, OPJ_INT32 count, const OPJ_FLOAT32 c)
+{
+ OPJ_FLOAT32* restrict fw = (OPJ_FLOAT32*) w;
+ OPJ_INT32 i;
+ for(i = 0; i < count; ++i){
+ OPJ_FLOAT32 tmp1 = fw[i*8 ];
+ OPJ_FLOAT32 tmp2 = fw[i*8 + 1];
+ OPJ_FLOAT32 tmp3 = fw[i*8 + 2];
+ OPJ_FLOAT32 tmp4 = fw[i*8 + 3];
+ fw[i*8 ] = tmp1 * c;
+ fw[i*8 + 1] = tmp2 * c;
+ fw[i*8 + 2] = tmp3 * c;
+ fw[i*8 + 3] = tmp4 * c;
+ }
+}
+
+void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k, OPJ_INT32 m, OPJ_FLOAT32 c)
+{
+ OPJ_FLOAT32* restrict fl = (OPJ_FLOAT32*) l;
+ OPJ_FLOAT32* restrict fw = (OPJ_FLOAT32*) w;
+ OPJ_INT32 i;
+ for(i = 0; i < m; ++i){
+ OPJ_FLOAT32 tmp1_1 = fl[0];
+ OPJ_FLOAT32 tmp1_2 = fl[1];
+ OPJ_FLOAT32 tmp1_3 = fl[2];
+ OPJ_FLOAT32 tmp1_4 = fl[3];
+ OPJ_FLOAT32 tmp2_1 = fw[-4];
+ OPJ_FLOAT32 tmp2_2 = fw[-3];
+ OPJ_FLOAT32 tmp2_3 = fw[-2];
+ OPJ_FLOAT32 tmp2_4 = fw[-1];
+ OPJ_FLOAT32 tmp3_1 = fw[0];
+ OPJ_FLOAT32 tmp3_2 = fw[1];
+ OPJ_FLOAT32 tmp3_3 = fw[2];
+ OPJ_FLOAT32 tmp3_4 = fw[3];
+ fw[-4] = tmp2_1 + ((tmp1_1 + tmp3_1) * c);
+ fw[-3] = tmp2_2 + ((tmp1_2 + tmp3_2) * c);
+ fw[-2] = tmp2_3 + ((tmp1_3 + tmp3_3) * c);
+ fw[-1] = tmp2_4 + ((tmp1_4 + tmp3_4) * c);
+ fl = fw;
+ fw += 8;
+ }
+ if(m < k){
+ OPJ_FLOAT32 c1;
+ OPJ_FLOAT32 c2;
+ OPJ_FLOAT32 c3;
+ OPJ_FLOAT32 c4;
+ c += c;
+ c1 = fl[0] * c;
+ c2 = fl[1] * c;
+ c3 = fl[2] * c;
+ c4 = fl[3] * c;
+ for(; m < k; ++m){
+ OPJ_FLOAT32 tmp1 = fw[-4];
+ OPJ_FLOAT32 tmp2 = fw[-3];
+ OPJ_FLOAT32 tmp3 = fw[-2];
+ OPJ_FLOAT32 tmp4 = fw[-1];
+ fw[-4] = tmp1 + c1;
+ fw[-3] = tmp2 + c2;
+ fw[-2] = tmp3 + c3;
+ fw[-1] = tmp4 + c4;
+ fw += 8;
+ }
+ }
+}
+
+#endif
+
+/* <summary> */
+/* Inverse 9-7 wavelet transform in 1-D. */
+/* </summary> */
+void opj_v4dwt_decode(opj_v4dwt_t* restrict dwt)
+{
+ OPJ_INT32 a, b;
+ if(dwt->cas == 0) {
+ if(!((dwt->dn > 0) || (dwt->sn > 1))){
+ return;
+ }
+ a = 0;
+ b = 1;
+ }else{
+ if(!((dwt->sn > 0) || (dwt->dn > 1))) {
+ return;
+ }
+ a = 1;
+ b = 0;
+ }
+#ifdef __SSE__
+ opj_v4dwt_decode_step1_sse(dwt->wavelet+a, dwt->sn, _mm_set1_ps(opj_K));
+ opj_v4dwt_decode_step1_sse(dwt->wavelet+b, dwt->dn, _mm_set1_ps(opj_c13318));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, opj_int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(opj_dwt_delta));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, opj_int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(opj_dwt_gamma));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, opj_int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(opj_dwt_beta));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, opj_int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(opj_dwt_alpha));
+#else
+ opj_v4dwt_decode_step1(dwt->wavelet+a, dwt->sn, opj_K);
+ opj_v4dwt_decode_step1(dwt->wavelet+b, dwt->dn, opj_c13318);
+ opj_v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, opj_int_min(dwt->sn, dwt->dn-a), opj_dwt_delta);
+ opj_v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, opj_int_min(dwt->dn, dwt->sn-b), opj_dwt_gamma);
+ opj_v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, opj_int_min(dwt->sn, dwt->dn-a), opj_dwt_beta);
+ opj_v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, opj_int_min(dwt->dn, dwt->sn-b), opj_dwt_alpha);
+#endif
+}
+
+
+/* <summary> */
+/* Inverse 9-7 wavelet transform in 2-D. */
+/* </summary> */
+OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* restrict tilec, OPJ_UINT32 numres)
+{
+ opj_v4dwt_t h;
+ opj_v4dwt_t v;
+
+ opj_tcd_resolution_t* res = tilec->resolutions;
+
+ OPJ_UINT32 rw = (OPJ_UINT32)(res->x1 - res->x0); /* width of the resolution level computed */
+ OPJ_UINT32 rh = (OPJ_UINT32)(res->y1 - res->y0); /* height of the resolution level computed */
+
+ OPJ_UINT32 w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
+
+ h.wavelet = (opj_v4_t*) opj_aligned_malloc((opj_dwt_max_resolution(res, numres)+5) * sizeof(opj_v4_t));
+ if (!h.wavelet) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+ v.wavelet = h.wavelet;
+
+ while( --numres) {
+ OPJ_FLOAT32 * restrict aj = (OPJ_FLOAT32*) tilec->data;
+ OPJ_UINT32 bufsize = (OPJ_UINT32)((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0));
+ OPJ_INT32 j;
+
+ h.sn = (OPJ_INT32)rw;
+ v.sn = (OPJ_INT32)rh;
+
+ ++res;
+
+ rw = (OPJ_UINT32)(res->x1 - res->x0); /* width of the resolution level computed */
+ rh = (OPJ_UINT32)(res->y1 - res->y0); /* height of the resolution level computed */
+
+ h.dn = (OPJ_INT32)(rw - (OPJ_UINT32)h.sn);
+ h.cas = res->x0 % 2;
+
+ for(j = (OPJ_INT32)rh; j > 3; j -= 4) {
+ OPJ_INT32 k;
+ opj_v4dwt_interleave_h(&h, aj, (OPJ_INT32)w, (OPJ_INT32)bufsize);
+ opj_v4dwt_decode(&h);
+
+ for(k = (OPJ_INT32)rw; --k >= 0;){
+ aj[k ] = h.wavelet[k].f[0];
+ aj[k+(OPJ_INT32)w ] = h.wavelet[k].f[1];
+ aj[k+(OPJ_INT32)w*2] = h.wavelet[k].f[2];
+ aj[k+(OPJ_INT32)w*3] = h.wavelet[k].f[3];
+ }
+
+ aj += w*4;
+ bufsize -= w*4;
+ }
+
+ if (rh & 0x03) {
+ OPJ_INT32 k;
+ j = rh & 0x03;
+ opj_v4dwt_interleave_h(&h, aj, (OPJ_INT32)w, (OPJ_INT32)bufsize);
+ opj_v4dwt_decode(&h);
+ for(k = (OPJ_INT32)rw; --k >= 0;){
+ switch(j) {
+ case 3: aj[k+(OPJ_INT32)w*2] = h.wavelet[k].f[2];
+ case 2: aj[k+(OPJ_INT32)w ] = h.wavelet[k].f[1];
+ case 1: aj[k ] = h.wavelet[k].f[0];
+ }
+ }
+ }
+
+ v.dn = (OPJ_INT32)(rh - (OPJ_UINT32)v.sn);
+ v.cas = res->y0 % 2;
+
+ aj = (OPJ_FLOAT32*) tilec->data;
+ for(j = (OPJ_INT32)rw; j > 3; j -= 4){
+ OPJ_UINT32 k;
+
+ opj_v4dwt_interleave_v(&v, aj, (OPJ_INT32)w, 4);
+ opj_v4dwt_decode(&v);
+
+ for(k = 0; k < rh; ++k){
+ memcpy(&aj[k*w], &v.wavelet[k], 4 * sizeof(OPJ_FLOAT32));
+ }
+ aj += 4;
+ }
+
+ if (rw & 0x03){
+ OPJ_UINT32 k;
+
+ j = rw & 0x03;
+
+ opj_v4dwt_interleave_v(&v, aj, (OPJ_INT32)w, j);
+ opj_v4dwt_decode(&v);
+
+ for(k = 0; k < rh; ++k){
+ memcpy(&aj[k*w], &v.wavelet[k], (size_t)j * sizeof(OPJ_FLOAT32));
+ }
+ }
+ }
+
+ opj_aligned_free(h.wavelet);
+ return OPJ_TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:59:32 +0000