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/******************************************************************************
** Filename: matchdefs.h
** Purpose: Generic interface definitions for feature matchers.
** Author: Dan Johnson
**
** (c) Copyright Hewlett-Packard Company, 1988.
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
** http://www.apache.org/licenses/LICENSE-2.0
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
******************************************************************************/
#ifndef MATCHDEFS_H
#define MATCHDEFS_H
#include <tesseract/unichar.h>
#include <climits> // INT16_MAX
#include <cstdint> // int16_t
namespace tesseract {
/* define the maximum number of classes defined for any matcher
and the maximum class id for any matcher. This must be changed
if more different classes need to be classified */
#define MAX_NUM_CLASSES INT16_MAX
/** a CLASS_ID is the ascii character to be associated with a class */
using CLASS_ID = UNICHAR_ID;
#define NO_CLASS (0)
/** a PROTO_ID is the index of a prototype within it's class. Valid proto
id's are 0 to N-1 where N is the number of prototypes that make up the
class. */
using PROTO_ID = int16_t;
#define NO_PROTO (-1)
/** FEATURE_ID is the index of a feature within a character description
The feature id ranges from 0 to N-1 where N is the number
of features in a character description. */
using FEATURE_ID = uint8_t;
} // namespace tesseract
#endif
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