githubmirror/tesseract

src/ccstruct/image.h
77 строк2 KB
Stefan Weil
Fix compiler warnings caused by Leptonica (-Wold-style-cast)
21 июн 2026, 23:20
21 июн 2026, 23:20c07fbb7
///////////////////////////////////////////////////////////////////////
// File:        image.h
// Description: Image wrapper.
//
// 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 TESSERACT_CCSTRUCT_IMAGE_H_
#define TESSERACT_CCSTRUCT_IMAGE_H_

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wold-style-cast"
#include <allheaders.h> // Pix, from leptonica
#pragma GCC diagnostic pop
#include <tesseract/export.h>

namespace tesseract {

class TESS_API Image {
public:
  Pix *pix_ = nullptr;

public:
  Image() = default;
  Image(Pix *pix) : pix_(pix) {}

  // service
  bool operator==(decltype(nullptr)) const { return pix_ == nullptr; }
  bool operator!=(decltype(nullptr)) const { return pix_ != nullptr; }
  explicit operator bool() const { return pix_ != nullptr; }
  operator Pix *() const { return pix_; }
  explicit operator Pix **() { return &pix_; }
  Pix *operator->() const { return pix_; }

  // api
  Image clone() const; // increases refcount
  Image copy() const;  // does full copy
  void destroy();
  bool isZero() const;

  // ops
  Image operator|(Image) const;
  Image &operator|=(Image);
  Image operator&(Image) const;
  Image &operator&=(Image);

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wold-style-cast"
  static void clearDataBit(const uint32_t *data, int n) {
    CLEAR_DATA_BIT(data, n);
  }
  static int getDataBit(const uint32_t *data, int n) {
    return GET_DATA_BIT(data, n);
  }
  static int getDataByte(const uint32_t *data, int n) {
    return GET_DATA_BYTE(data, n);
  }
  static void setDataBit(uint32_t *data, int n) {
    SET_DATA_BIT(data, n);
  }
  static void setDataByte(uint32_t *data, int n, int b) {
    SET_DATA_BYTE(data, n, b);
  }
#pragma GCC diagnostic pop
};

} // namespace tesseract

#endif // TESSERACT_CCSTRUCT_IMAGE_H_