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diff --git a/libopenjpeg/dwt.c b/libopenjpeg/dwt.c
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+++ b/libopenjpeg/dwt.c
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+/*
+ * Copyright (c) 2001-2002, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2002-2003,  Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * 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.
+ */
+
+#include "dwt.h"
+#include "int.h"
+#include "fix.h"
+#include "tcd.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+#define S(i) a[x*(i)*2]
+#define D(i) a[x*(1+(i)*2)]
+#define S_(i) ((i)<0?S(0):((i)>=sn?S(sn-1):S(i)))
+#define D_(i) ((i)<0?D(0):((i)>=dn?D(dn-1):D(i)))
+/* new */
+#define SS_(i) ((i)<0?S(0):((i)>=dn?S(dn-1):S(i)))
+#define DD_(i) ((i)<0?D(0):((i)>=sn?D(sn-1):D(i)))
+
+/* <summary> */
+/* This table contains the norms of the 5-3 wavelets for different bands.  */
+/* </summary> */
+double 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> */
+double 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}
+};
+
+/* Add Patrick */
+static int *b = NULL;
+static int lastSizeOfB = 0;
+
+
+void dwt_clean()
+{
+	if (b != NULL) {
+		free(b);
+	}
+	b = NULL;
+	lastSizeOfB = 0;
+}
+
+/* \ Add Patrick */
+
+/* <summary> */
+/* Forward lazy transform. */
+/* </summary> */
+void dwt_deinterleave(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i;
+	sn = res;
+	dn = n - res;
+	if (lastSizeOfB != n) {
+		if (b != NULL)
+			free(b);
+		b = (int *) malloc(n * sizeof(int));
+		lastSizeOfB = n;
+	}
+
+	if (cas) {
+		for (i = 0; i < sn; i++)
+			b[i] = a[(2 * i + 1) * x];
+		for (i = 0; i < dn; i++)
+			b[sn + i] = a[2 * i * x];
+	} else {
+		for (i = 0; i < sn; i++)
+			b[i] = a[2 * i * x];
+		for (i = 0; i < dn; i++)
+			b[sn + i] = a[(2 * i + 1) * x];
+	}
+	for (i = 0; i < n; i++)
+		a[i * x] = b[i];
+}
+
+/* <summary> */
+/* Forward lazy transform. */
+/* </summary> */
+void dwt_deinterleave_real(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i;
+	sn = res;
+	dn = n - res;
+
+	if (lastSizeOfB != n) {
+		if (b != NULL)
+			free(b);
+		b = (int *) malloc(n * sizeof(int));
+		lastSizeOfB = n;
+	}
+
+	if (cas) {
+		for (i = 0; i < sn; i++)
+			b[i] = a[(2 * i + 1) * x];
+		for (i = 0; i < dn; i++)
+			b[sn + i] = a[2 * i * x];
+	} else {
+		for (i = 0; i < sn; i++)
+			b[i] = a[2 * i * x];
+		for (i = 0; i < dn; i++)
+			b[sn + i] = a[(2 * i + 1) * x];
+	}
+	for (i = 0; i < n; i++)
+		a[i * x] = b[i];
+
+}
+
+/* <summary> */
+/* Inverse lazy transform. */
+/* </summary> */
+void dwt_interleave(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i;
+	sn = res;
+	dn = n - res;
+
+	if (lastSizeOfB != n) {
+		if (b != NULL)
+			free(b);
+		b = (int *) malloc(n * sizeof(int));
+		lastSizeOfB = n;
+	}
+
+	if (cas) {
+		for (i = 0; i < sn; i++)
+			b[2 * i + 1] = a[i * x];
+		for (i = 0; i < dn; i++)
+			b[2 * i] = a[(sn + i) * x];
+	} else {
+		for (i = 0; i < sn; i++)
+			b[2 * i] = a[i * x];
+		for (i = 0; i < dn; i++)
+			b[2 * i + 1] = a[(sn + i) * x];
+	}
+	for (i = 0; i < n; i++)
+		a[i * x] = b[i];
+}
+
+/* <summary> */
+/* Inverse lazy transform. */
+/* </summary> */
+void dwt_interleave_real(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i;
+	sn = res;
+	dn = n - res;
+
+	if (lastSizeOfB != n) {
+		if (b != NULL)
+			free(b);
+		b = (int *) malloc(n * sizeof(int));
+		lastSizeOfB = n;
+	}
+
+	if (cas) {
+		for (i = 0; i < sn; i++)
+			b[2 * i + 1] = a[i * x];
+		for (i = 0; i < dn; i++)
+			b[2 * i] = a[(sn + i) * x];
+	} else {
+		for (i = 0; i < sn; i++)
+			b[2 * i] = a[i * x];
+		for (i = 0; i < dn; i++)
+			b[2 * i + 1] = a[(sn + i) * x];
+	}
+	for (i = 0; i < n; i++)
+		a[i * x] = b[i];
+
+}
+
+/* <summary> */
+/* Forward 5-3 wavelet tranform in 1-D. */
+/* </summary> */
+void dwt_encode_1(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i = 0;
+	sn = res;
+	dn = n - res;
+
+	if (cas) {
+		if (!sn && dn == 1)					/* NEW :  CASE ONE ELEMENT */
+			S(i) *= 2;
+		else {
+			for (i = 0; i < dn; i++)
+				S(i) -= (DD_(i) + DD_(i - 1)) >> 1;
+			for (i = 0; i < sn; i++)
+				D(i) += (SS_(i) + SS_(i + 1) + 2) >> 2;
+		}
+	} else {
+		if ((dn > 0) || (sn > 1)) {  /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < dn; i++)
+				D(i) -= (S_(i) + S_(i + 1)) >> 1;
+			for (i = 0; i < sn; i++)
+				S(i) += (D_(i - 1) + D_(i) + 2) >> 2;
+		}
+	}
+	dwt_deinterleave(a, n, x, res, cas);
+}
+
+/* <summary> */
+/* Inverse 5-3 wavelet tranform in 1-D. */
+/* </summary> */
+void dwt_decode_1(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i = 0;
+	/* dn=n/2; */
+	/* sn=(n+1)/2; */
+	sn = res;
+	dn = n - res;
+
+	dwt_interleave(a, n, x, res, cas);
+	if (cas) {
+		if (!sn && dn == 1)					/* NEW :  CASE ONE ELEMENT */
+			S(i) /= 2;
+		else {
+			for (i = 0; i < sn; i++)
+				D(i) -= (SS_(i) + SS_(i + 1) + 2) >> 2;
+			for (i = 0; i < dn; i++)
+				S(i) += (DD_(i) + DD_(i - 1)) >> 1;
+		}
+	} else {
+		if ((dn > 0) || (sn > 1)) { /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < sn; i++)
+				S(i) -= (D_(i - 1) + D_(i) + 2) >> 2;
+			for (i = 0; i < dn; i++)
+				D(i) += (S_(i) + S_(i + 1)) >> 1;
+		}
+	}
+}
+
+/* <summary> */
+/* Forward 5-3 wavelet tranform in 2-D. */
+/* </summary> */
+void dwt_encode(int *a, int w, int h, tcd_tilecomp_t * tilec, int l)
+{
+	int i, j, rw, rh, rw1, rh1;
+	int previous_rw, previous_rh, previous_rw1, previous_rh1;
+
+	for (i = 0; i < l; i++) {
+		int cas_col = 0;
+		int cas_row = 0;
+		rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
+		rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
+		rw1 =
+			tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
+		rh1 =
+			tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
+
+		/* Check the different cases for that it's necessary to invert high pass and low pass filter */
+
+		if (tilec->previous_row) {
+			previous_rw =
+				tilec->resolutions[l - i].previous_x1 - tilec->resolutions[l -
+																																	 i].
+				previous_x0;
+			previous_rw1 =
+				tilec->resolutions[l - i - 1].previous_x1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_x0;
+			/* inversion on the previous and propagation of the inversion on the other tile */
+			if ((previous_rw1 > previous_rw - previous_rw1 && rw1 == rw - rw1)
+					|| (tilec->resolutions[l - i - 1].cas_row
+							&& previous_rw1 == previous_rw - previous_rw1))
+				cas_row = 1;
+		}
+
+		if (tilec->previous_col) {
+			previous_rh =
+				tilec->resolutions[l - i].previous_y1 - tilec->resolutions[l -
+																																	 i].
+				previous_y0;
+			previous_rh1 =
+				tilec->resolutions[l - i - 1].previous_y1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_y0;
+			/* inversion on the previous and propagation of the inversion on the other tile */
+			if ((previous_rh1 > previous_rh - previous_rh1 && rh1 == rh - rh1)
+					|| (tilec->resolutions[l - i - 1].cas_col
+							&& previous_rh1 == previous_rh - previous_rh1))
+				cas_col = 1;
+		}
+
+		/* subband LL shorter than LH or HL */
+		if (rw1 < rw - rw1)
+			cas_row = 1;
+		if (rh1 < rh - rh1)
+			cas_col = 1;
+
+		/* OFFSET IMAGE (If origin of the resolution is odd and first tile on the row or column) */
+		if (!tilec->previous_row && ((tilec->resolutions[l - i].x0 % 2) == 1))
+			cas_row = 1;
+		if (!tilec->previous_col && ((tilec->resolutions[l - i].y0 % 2) == 1))
+			cas_col = 1;
+
+		tilec->resolutions[l - i - 1].cas_row = cas_row;
+		tilec->resolutions[l - i - 1].cas_col = cas_col;
+
+		for (j = 0; j < rw; j++)
+			dwt_encode_1(a + j, rh, w, rh1, cas_col);
+		for (j = 0; j < rh; j++)
+			dwt_encode_1(a + j * w, rw, 1, rw1, cas_row);
+	}
+
+	dwt_clean();
+}
+
+/* <summary> */
+/* Inverse 5-3 wavelet tranform in 2-D. */
+/* </summary> */
+void dwt_decode(int *a, int w, int h, tcd_tilecomp_t * tilec, int l,
+								tcd_tilecomp_t * row_tilec, tcd_tilecomp_t * col_tilec)
+{
+	int i, j, rw, rh, rw1, rh1;
+	int previous_rw, previous_rh, previous_rw1, previous_rh1;
+	for (i = l - 1; i >= 0; i--) {
+		int cas_col = 0;
+		int cas_row = 0;
+
+		rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
+		rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
+		rw1 =
+			tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
+		rh1 =
+			tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
+
+		if (tilec->previous_row) {
+			previous_rw =
+				tilec->resolutions[l - i].previous_x1 - tilec->resolutions[l -
+																																	 i].
+				previous_x0;
+			previous_rw1 =
+				tilec->resolutions[l - i - 1].previous_x1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_x0;
+			if ((previous_rw1 > previous_rw - previous_rw1 && rw1 == rw - rw1)
+					|| (row_tilec->resolutions[l - i - 1].cas_row
+							&& previous_rw1 == previous_rw - previous_rw1))
+				cas_row = 1;
+		}
+
+		if (tilec->previous_col) {
+			previous_rh =
+				tilec->resolutions[l - i].previous_y1 - tilec->resolutions[l -
+																																	 i].
+				previous_y0;
+			previous_rh1 =
+				tilec->resolutions[l - i - 1].previous_y1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_y0;
+			if ((previous_rh1 > previous_rh - previous_rh1 && rh1 == rh - rh1)
+					|| (col_tilec->resolutions[l - i - 1].cas_col
+							&& previous_rh1 == previous_rh - previous_rh1))
+				cas_col = 1;
+		}
+
+		if (rw1 < rw - rw1)
+			cas_row = 1;
+		if (rh1 < rh - rh1)
+			cas_col = 1;
+
+		/* OFFSET IMAGE (If origin of the resolution is odd and first tile on the row or column) */
+		if (!tilec->previous_row && ((tilec->resolutions[l - i].x0 % 2) == 1))
+			cas_row = 1;
+		if (!tilec->previous_col && ((tilec->resolutions[l - i].y0 % 2) == 1))
+			cas_col = 1;
+
+		tilec->resolutions[l - i - 1].cas_row = cas_row;
+		tilec->resolutions[l - i - 1].cas_col = cas_col;
+
+		for (j = 0; j < rh; j++)
+			dwt_decode_1(a + j * w, rw, 1, rw1, cas_row);
+		for (j = 0; j < rw; j++)
+			dwt_decode_1(a + j, rh, w, rh1, cas_col);
+	}
+	dwt_clean();
+}
+
+/* <summary> */
+/* Get gain of 5-3 wavelet transform. */
+/* </summary> */
+int dwt_getgain(int orient)
+{
+	if (orient == 0)
+		return 0;
+	if (orient == 1 || orient == 2)
+		return 1;
+	return 2;
+}
+
+/* <summary> */
+/* Get norm of 5-3 wavelet. */
+/* </summary> */
+double dwt_getnorm(int level, int orient)
+{
+	return dwt_norms[orient][level];
+}
+
+/* <summary> */
+/* Forward 9-7 wavelet transform in 1-D. */
+/* </summary> */
+void dwt_encode_1_real(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i = 0;
+	dn = n - res;
+	sn = res;
+
+	if (cas) {
+		if ((sn > 0) || (dn > 1)) {  /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < dn; i++)
+				S(i) -= fix_mul(DD_(i) + DD_(i - 1), 12993);
+			for (i = 0; i < sn; i++)
+				D(i) -= fix_mul(SS_(i) + SS_(i + 1), 434);
+			for (i = 0; i < dn; i++)
+				S(i) += fix_mul(DD_(i) + DD_(i - 1), 7233);
+			for (i = 0; i < sn; i++)
+				D(i) += fix_mul(SS_(i) + SS_(i + 1), 3633);
+			for (i = 0; i < dn; i++)
+				S(i) = fix_mul(S(i), 5038);
+			for (i = 0; i < sn; i++)
+				D(i) = fix_mul(D(i), 6660);
+		}
+	} else {
+	  if ((dn > 0) || (sn > 1)) {  /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < dn; i++)
+				D(i) -= fix_mul(S_(i) + S_(i + 1), 12993);
+			for (i = 0; i < sn; i++)
+				S(i) -= fix_mul(D_(i - 1) + D_(i), 434);
+			for (i = 0; i < dn; i++)
+				D(i) += fix_mul(S_(i) + S_(i + 1), 7233);
+			for (i = 0; i < sn; i++)
+				S(i) += fix_mul(D_(i - 1) + D_(i), 3633);
+			for (i = 0; i < dn; i++)
+				D(i) = fix_mul(D(i), 5038);
+			for (i = 0; i < sn; i++)
+				S(i) = fix_mul(S(i), 6660);
+		}
+	}
+	dwt_deinterleave_real(a, n, x, res, cas);
+}
+
+/* <summary> */
+/* Inverse 9-7 wavelet transform in 1-D. */
+/* </summary> */
+void dwt_decode_1_real(int *a, int n, int x, int res, int cas)
+{
+	int dn, sn, i = 0;
+	dn = n - res;
+	sn = res;
+	dwt_interleave_real(a, n, x, res, cas);
+	if (cas) {
+		if ((sn > 0) || (dn > 1)) {  /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < sn; i++)
+				D(i) = fix_mul(D(i), 10076);
+			for (i = 0; i < dn; i++)
+				S(i) = fix_mul(S(i), 13320);
+			for (i = 0; i < sn; i++)
+				D(i) -= fix_mul(SS_(i) + SS_(i + 1), 3633);
+			for (i = 0; i < dn; i++)
+				S(i) -= fix_mul(DD_(i) + DD_(i - 1), 7233);
+			for (i = 0; i < sn; i++)
+				D(i) += fix_mul(SS_(i) + SS_(i + 1), 434);
+			for (i = 0; i < dn; i++)
+				S(i) += fix_mul(DD_(i) + DD_(i - 1), 12993);
+		}
+	} else {
+		if ((dn > 0) || (sn > 1)) {  /* NEW :  CASE ONE ELEMENT */
+			for (i = 0; i < sn; i++)
+				S(i) = fix_mul(S(i), 10076);
+			for (i = 0; i < dn; i++)
+				D(i) = fix_mul(D(i), 13320);
+			for (i = 0; i < sn; i++)
+				S(i) -= fix_mul(D_(i - 1) + D_(i), 3633);
+			for (i = 0; i < dn; i++)
+				D(i) -= fix_mul(S_(i) + S_(i + 1), 7233);
+			for (i = 0; i < sn; i++)
+				S(i) += fix_mul(D_(i - 1) + D_(i), 434);
+			for (i = 0; i < dn; i++)
+				D(i) += fix_mul(S_(i) + S_(i + 1), 12993);
+		}
+	}
+}
+
+/* <summary> */
+/* Forward 9-7 wavelet transform in 2-D. */
+/* </summary> */
+
+void dwt_encode_real(int *a, int w, int h, tcd_tilecomp_t * tilec, int l)
+{
+	int i, j, rw, rh, rw1, rh1;
+	int previous_rw, previous_rh, previous_rw1, previous_rh1;
+
+	for (i = 0; i < l; i++) {
+		int cas_col = 0;
+		int cas_row = 0;
+		rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
+		rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
+		rw1 =
+			tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
+		rh1 =
+			tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
+
+		if (tilec->previous_row) {
+			previous_rw =
+				tilec->resolutions[l - i].previous_x1 - tilec->resolutions[l -
+																																	 i].
+				previous_x0;
+			previous_rw1 =
+				tilec->resolutions[l - i - 1].previous_x1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_x0;
+			if ((previous_rw1 > previous_rw - previous_rw1 && rw1 == rw - rw1)
+					|| (tilec->resolutions[l - i - 1].cas_row
+							&& previous_rw1 == previous_rw - previous_rw1))
+				cas_row = 1;
+		}
+
+		if (tilec->previous_col) {
+			previous_rh =
+				tilec->resolutions[l - i].previous_y1 - tilec->resolutions[l -
+																																	 i].
+				previous_y0;
+			previous_rh1 =
+				tilec->resolutions[l - i - 1].previous_y1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_y0;
+			if ((previous_rh1 > previous_rh - previous_rh1 && rh1 == rh - rh1)
+					|| (tilec->resolutions[l - i - 1].cas_col
+							&& previous_rh1 == previous_rh - previous_rh1))
+				cas_col = 1;
+		}
+
+		if (rw1 < rw - rw1)
+			cas_row = 1;
+		if (rh1 < rh - rh1)
+			cas_col = 1;
+
+		/* OFFSET IMAGE (If origin of the resolution is odd and first tile on the row or column) */
+		if (!tilec->previous_row && ((tilec->resolutions[l - i].x0 % 2) == 1))
+			cas_row = 1;
+		if (!tilec->previous_col && ((tilec->resolutions[l - i].y0 % 2) == 1))
+			cas_col = 1;
+
+		tilec->resolutions[l - i - 1].cas_row = cas_row;
+		tilec->resolutions[l - i - 1].cas_col = cas_col;
+
+		for (j = 0; j < rw; j++)
+			dwt_encode_1_real(a + j, rh, w, rh1, cas_col);
+		for (j = 0; j < rh; j++)
+			dwt_encode_1_real(a + j * w, rw, 1, rw1, cas_row);
+	}
+}
+
+/* <summary> */
+/* Inverse 9-7 wavelet transform in 2-D. */
+/* </summary> */
+void dwt_decode_real(int *a, int w, int h, tcd_tilecomp_t * tilec, int l,
+										 tcd_tilecomp_t * row_tilec,
+										 tcd_tilecomp_t * col_tilec)
+{
+	int i, j, rw, rh, rw1, rh1;
+	int previous_rw, previous_rh, previous_rw1, previous_rh1;
+
+	for (i = l - 1; i >= 0; i--) {
+		int cas_col = 0;
+		int cas_row = 0;
+
+		rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
+		rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
+		rw1 =
+			tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
+		rh1 =
+			tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
+
+		if (tilec->previous_row) {
+			previous_rw =
+				tilec->resolutions[l - i].previous_x1 - tilec->resolutions[l -
+																																	 i].
+				previous_x0;
+			previous_rw1 =
+				tilec->resolutions[l - i - 1].previous_x1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_x0;
+			if ((previous_rw1 > previous_rw - previous_rw1 && rw1 == rw - rw1)
+					|| (row_tilec->resolutions[l - i - 1].cas_row
+							&& previous_rw1 == previous_rw - previous_rw1))
+				cas_row = 1;
+		}
+
+		if (tilec->previous_col) {
+			previous_rh =
+				tilec->resolutions[l - i].previous_y1 - tilec->resolutions[l -
+																																	 i].
+				previous_y0;
+			previous_rh1 =
+				tilec->resolutions[l - i - 1].previous_y1 - tilec->resolutions[l -
+																																			 i -
+																																			 1].
+				previous_y0;
+			if ((previous_rh1 > previous_rh - previous_rh1 && rh1 == rh - rh1)
+					|| (col_tilec->resolutions[l - i - 1].cas_col
+							&& previous_rh1 == previous_rh - previous_rh1))
+				cas_col = 1;
+		}
+
+		if (rw1 < rw - rw1)
+			cas_row = 1;
+		if (rh1 < rh - rh1)
+			cas_col = 1;
+
+		/* OFFSET IMAGE (If origin of the resolution is odd and first tile on the row or column) */
+		if (!tilec->previous_row && ((tilec->resolutions[l - i].x0 % 2) == 1))
+			cas_row = 1;
+		if (!tilec->previous_col && ((tilec->resolutions[l - i].y0 % 2) == 1))
+			cas_col = 1;
+
+		tilec->resolutions[l - i - 1].cas_row = cas_row;
+		tilec->resolutions[l - i - 1].cas_col = cas_col;
+
+		for (j = 0; j < rh; j++)
+			dwt_decode_1_real(a + j * w, rw, 1, rw1, cas_row);
+		for (j = 0; j < rw; j++)
+			dwt_decode_1_real(a + j, rh, w, rh1, cas_col);
+	}
+}
+
+/* <summary> */
+/* Get gain of 9-7 wavelet transform. */
+/* </summary> */
+int dwt_getgain_real(int orient)
+{
+	return 0;
+}
+
+/* <summary> */
+/* Get norm of 9-7 wavelet. */
+/* </summary> */
+double dwt_getnorm_real(int level, int orient)
+{
+	return dwt_norms_real[orient][level];
+}