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// Copyright (c) 2016 Egor Tensin <egor@tensin.name>
// This file is part of the "AES tools" project.
// For details, see https://github.com/egor-tensin/aes-tools.
// Distributed under the MIT License.
#include <windows.h>
#include <cstddef>
#include <cstring>
#include <string>
#include <utility>
#include <vector>
class BmpFile {
public:
BmpFile(std::vector<char>&& buffer)
: buffer{std::move(buffer)}, header_size{extract_pixels_offset()} {}
const void* get_buffer() const {
return buffer.data();
}
std::size_t get_size() const {
return buffer.size();
}
std::size_t get_header_size() const {
return header_size;
}
const void* get_pixels() const {
return buffer.data() + get_header_size();
}
std::size_t get_pixels_size() const {
return get_size() - get_header_size();
}
void replace_pixels(std::vector<unsigned char>&& pixels) {
buffer.resize(get_header_size() + pixels.size());
std::memcpy(buffer.data() + get_header_size(), pixels.data(), pixels.size());
}
private:
std::size_t extract_pixels_offset() const {
const auto header = reinterpret_cast<const BITMAPFILEHEADER*>(get_buffer());
return header->bfOffBits;
}
std::vector<char> buffer;
std::size_t header_size;
};
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