76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
// Copyright (C) 2018-2020 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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//
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/**
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* \brief BMP reader
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* \file bmp.h
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*/
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#pragma once
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#include <memory>
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#include <string>
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#include <format_reader.h>
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#include "register.h"
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namespace FormatReader {
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/**
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* \class BitMap
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* \brief Reader for bmp files
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*/
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class BitMap : public Reader {
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private:
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static Register<BitMap> reg;
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typedef struct BmpHeaderType {
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unsigned short type = 0u; /* Magic identifier */
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unsigned int size = 0u; /* File size in bytes */
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unsigned int reserved = 0u;
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unsigned int offset = 0u; /* Offset to image data, bytes */
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} BmpHeader;
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typedef struct BmpInfoHeaderType {
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unsigned int size = 0u; /* Header size in bytes */
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int width = 0, height = 0; /* Width and height of image */
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unsigned short planes = 0u; /* Number of colour planes */
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unsigned short bits = 0u; /* Bits per pixel */
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unsigned int compression = 0u; /* Compression type */
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unsigned int imagesize = 0u; /* Image size in bytes */
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int xresolution = 0, yresolution = 0; /* Pixels per meter */
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unsigned int ncolours = 0u; /* Number of colours */
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unsigned int importantcolours = 0u; /* Important colours */
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} BmpInfoHeader;
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public:
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/**
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* \brief Constructor of BMP reader
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* @param filename - path to input data
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* @return BitMap reader object
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*/
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explicit BitMap(const std::string &filename);
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virtual ~BitMap() {
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}
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/**
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* \brief Get size
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* @return size
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*/
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size_t size() const override {
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return _width * _height * 3;
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}
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void Release() noexcept override {
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delete this;
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}
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std::shared_ptr<unsigned char> getData(size_t width, size_t height) override {
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if ((width * height != 0) && (_width * _height != width * height)) {
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std::cout << "[ WARNING ] Image won't be resized! Please use OpenCV.\n";
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return nullptr;
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}
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return _data;
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}
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};
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} // namespace FormatReader
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