--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/openjpeg/src/lib/openjp2/dwt.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,120 @@
+/*
+ * 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
+ * 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.
+ */
+
+#ifndef OPJ_DWT_H
+#define OPJ_DWT_H
+/**
+@file dwt.h
+@brief Implementation of a discrete wavelet transform (DWT)
+
+The functions in DWT.C have for goal to realize forward and inverse discret wavelet
+transform with filter 5-3 (reversible) and filter 9-7 (irreversible). The functions in
+DWT.C are used by some function in TCD.C.
+*/
+
+/** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
+/*@{*/
+
+
+/** @name Exported functions */
+/*@{*/
+/* ----------------------------------------------------------------------- */
+/**
+Forward 5-3 wavelet transform in 2-D.
+Apply a reversible DWT transform to a component of an image.
+@param p_tcd TCD handle
+@param tilec Tile component information (current tile)
+*/
+OPJ_BOOL opj_dwt_encode(opj_tcd_t *p_tcd,
+                        opj_tcd_tilecomp_t * tilec);
+
+/**
+Inverse 5-3 wavelet transform in 2-D.
+Apply a reversible inverse DWT transform to a component of an image.
+@param p_tcd TCD handle
+@param tilec Tile component information (current tile)
+@param numres Number of resolution levels to decode
+*/
+OPJ_BOOL opj_dwt_decode(opj_tcd_t *p_tcd,
+                        opj_tcd_tilecomp_t* tilec,
+                        OPJ_UINT32 numres);
+
+/**
+Get the norm of a wavelet function of a subband at a specified level for the reversible 5-3 DWT.
+@param level Level of the wavelet function
+@param orient Band of the wavelet function
+@return Returns the norm of the wavelet function
+*/
+OPJ_FLOAT64 opj_dwt_getnorm(OPJ_UINT32 level, OPJ_UINT32 orient);
+/**
+Forward 9-7 wavelet transform in 2-D.
+Apply an irreversible DWT transform to a component of an image.
+@param p_tcd TCD handle
+@param tilec Tile component information (current tile)
+*/
+OPJ_BOOL opj_dwt_encode_real(opj_tcd_t *p_tcd,
+                             opj_tcd_tilecomp_t * tilec);
+/**
+Inverse 9-7 wavelet transform in 2-D.
+Apply an irreversible inverse DWT transform to a component of an image.
+@param p_tcd TCD handle
+@param tilec Tile component information (current tile)
+@param numres Number of resolution levels to decode
+*/
+OPJ_BOOL opj_dwt_decode_real(opj_tcd_t *p_tcd,
+                             opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
+                             OPJ_UINT32 numres);
+
+/**
+Get the norm of a wavelet function of a subband at a specified level for the irreversible 9-7 DWT
+@param level Level of the wavelet function
+@param orient Band of the wavelet function
+@return Returns the norm of the 9-7 wavelet
+*/
+OPJ_FLOAT64 opj_dwt_getnorm_real(OPJ_UINT32 level, OPJ_UINT32 orient);
+/**
+Explicit calculation of the Quantization Stepsizes
+@param tccp Tile-component coding parameters
+@param prec Precint analyzed
+*/
+void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec);
+/* ----------------------------------------------------------------------- */
+/*@}*/
+
+/*@}*/
+
+#endif /* OPJ_DWT_H */