dwt_utils.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 dwt_utils {
public:
 
        static double getnorm_53(uint32_t level, uint8_t orient);
        static double getnorm_97(uint32_t level, uint8_t orient);
 
 
        static uint32_t max_resolution(grk_resolution* GRK_RESTRICT r, uint32_t i);
        static void deinterleave_v(int32_t *a, int32_t *b, uint32_t d_n, uint32_t s_n,
                        uint32_t stride, int32_t cas);
        static void deinterleave_h(int32_t *a, int32_t *b, uint32_t d_n, uint32_t s_n,
                        int32_t cas);
 
private:
        static double getnorm(uint32_t level, uint8_t orient, bool reversible);
};
 
}