BarcodeStorage/main.cpp at main · QVRE/BarcodeStorage · GitHub

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#include "core.hpp"
#include <cstdint>
#include <cstdlib>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstring>


void print_bytes(unsigned long num) {
	const char *prefix = " KMGTP";
	int frac = 0;
	int p = 0;
	while (num >= 1024) {
		frac = (num & 1023) * 100 / 1024;
		num >>= 10;
		p++;
		if (prefix[p+1] == '\0') break;
	}
	std::cout << num;
	if (frac > 0) std::cout << '.' << std::setfill('0')  << std::setw(2) << frac;
	std::cout << ' ';
	if (prefix[p] != ' ') std::cout << prefix[p];
	std::cout << 'B';
}

void gen_test_data(uint8_t* dat, int n) {
	uint16_t x = 1234;
	for (int i = 0; i < n; i++) {
		dat[i] = x;
		dat[i] = i;
		x = 5101 * x + 709;
	}
}

int get_file_data(const std::string& filename, uint8_t* dat, int N) {
	std::ifstream fp(filename, std::ios::binary | std::ios::ate);
	if (!fp) return -1;

	const size_t file_size = fp.tellg();
	const size_t header_size = 1 + filename.size() + 1 + 4; // 0x01 + filename + null + 4-byte size

	if (header_size + file_size > N) return -1;

	fp.seekg(0);
	dat[0] = 0x01;
	std::memcpy(dat + 1, filename.c_str(), filename.size() + 1);

	// Write 4-byte little-endian file size
	for (int i = 0; i < 4; i++)
		dat[header_size - 4 + i] = (file_size >> (i * 8)) & 0xFF;

	fp.read(reinterpret_cast<char*>(dat + header_size), file_size);
	std::memset(dat + header_size + file_size, 0, N - header_size - file_size);

	return 0;
}

int output_file(const uint8_t* dat, int N, const std::string& output_dir = "") {
	if (dat[0] != 0x01) return -1; // Invalid format

	// Get filename
	const char* filename = reinterpret_cast<const char*>(dat + 1);
	size_t filename_len = strlen(filename);

	// Get file size
	const uint8_t* size_ptr = dat + 1 + filename_len + 1;
	uint32_t file_size = 0;
	for (int i = 0; i < 4; i++)
		file_size |= (size_ptr[i] << (i * 8));

	const uint8_t* file_dat = size_ptr + 4;

	std::string output_path = (output_dir.empty() ? filename : output_dir + "/" + filename);
	//check if output exists
	std::ifstream check(output_path);
	if (check.is_open()) return -1;

	std::ofstream fp(output_path, std::ios::binary);
	if (!fp) return -1;
	fp.write(reinterpret_cast<const char*>(file_dat), file_size);

	return fp ? 0 : -1;
}

int main() {
	generator_conf conf;
	conf.ppi = 150;
	conf.cor_strength = 75;

	init_generator(conf);
	print_bytes(conf.capacity);
	std::cout << " (" << conf.efficiency * 100 << "%)\n";
	// print_ec_debug_info();

	uint8_t *dat = (uint8_t*)calloc(conf.capacity, sizeof(uint8_t));

	//Write file to barcode
	// // gen_test_data(dat, conf.capacity);
	// if (get_file_data("img/write_file", dat, conf.capacity) < 0)
	// 	std::cerr << "Failed to open / read file\n";
	// generate_barcode(conf, dat, "barcode.pbm");
	// return 0;

	//Read file(s)
	// uint8_t *test = (uint8_t*)calloc(conf.capacity, sizeof(uint8_t));
	// gen_test_data(test, conf.capacity);
	if (read_barcode(conf, dat, "barcode.pbm") == -1) return 0;
	if (output_file(dat, conf.capacity))
		std::cerr << "Failed to write data\n";
	// for (int i = 0; i < conf.capacity; i++)
	// 	if (dat[i] != test[i]) {
	// 		std::cout << "Err " << i << ' ' << (int)dat[i] << ' ' << (int)test[i] << '\n';
	// 	}
}