mct.h

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/*
 *    Copyright (C) 2016-2020 Grok Image Compression Inc.
 *
 *    This source code is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    This source code is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 *    This source code incorporates work covered by the BSD 2-clause license.
 *    Please see the LICENSE file in the root directory for details.
 *
 */
 
#pragma once
namespace grk {
 
class mct {
 
public:
 
 
/* ----------------------------------------------------------------------- */
        static void encode_rev(int32_t *c0, int32_t *c1, int32_t *c2, uint64_t n);
        static void decode_rev(int32_t *c0, int32_t *c1, int32_t *c2, uint64_t n);
 
        static const double* get_norms_rev(void);
 
 
        static void encode_irrev(int32_t *c0, int32_t *c1, int32_t *c2, uint64_t n);
        static void decode_irrev(float *c0, float *c1, float *c2, uint64_t n);
 
        static const double* get_norms_irrev(void);
 
        static bool encode_custom(uint8_t *p_coding_data, uint64_t n, uint8_t **p_data,
                        uint32_t nb_comp, uint32_t is_signed);
        static bool decode_custom(uint8_t *pDecodingData, uint64_t n, uint8_t **pData,
                        uint32_t pNbComp, uint32_t isSigned);
        static void calculate_norms(double *pNorms, uint32_t nb_comps, float *pMatrix);
 
};
 
/* ----------------------------------------------------------------------- */
 
}