mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-04-02 10:42:14 -04:00
94b2538af5
byuu says: Basically just a project rename, with s/bsnes/higan and the new icon from lowkee added in. It won't compile on Windows because I forgot to update the resource.rc file, and a path transform command isn't working on Windows. It was really just meant as a starting point, so that v091 WIPs can flow starting from .00 with the new name (it overshadows bsnes v091, so publicly speaking this "shouldn't exist" and will probably be deleted from Google Code when v092 is ready.)
95 lines
3.5 KiB
C++
Executable file
95 lines
3.5 KiB
C++
Executable file
#ifndef NALL_ZIP_HPP
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#define NALL_ZIP_HPP
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//creates uncompressed ZIP archives
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#include <nall/crc32.hpp>
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#include <nall/string.hpp>
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namespace nall {
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struct zip {
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zip(const string &filename) {
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fp.open(filename, file::mode::write);
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time_t currentTime = time(0);
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tm *info = localtime(¤tTime);
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dosTime = (info->tm_hour << 11) | (info->tm_min << 5) | (info->tm_sec >> 1);
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dosDate = ((info->tm_year - 80) << 9) | ((1 + info->tm_mon) << 5) + (info->tm_mday);
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}
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//append path: append("path/");
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//append file: append("path/file", data, size);
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void append(string filename, const uint8_t *data = nullptr, unsigned size = 0u) {
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filename.transform("\\", "/");
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uint32_t checksum = crc32_calculate(data, size);
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directory.append({filename, checksum, size, fp.offset()});
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fp.writel(0x04034b50, 4); //signature
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fp.writel(0x0014, 2); //minimum version (2.0)
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fp.writel(0x0000, 2); //general purpose bit flags
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fp.writel(0x0000, 2); //compression method (0 = uncompressed)
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fp.writel(dosTime, 2);
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fp.writel(dosDate, 2);
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fp.writel(checksum, 4);
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fp.writel(size, 4); //compressed size
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fp.writel(size, 4); //uncompressed size
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fp.writel(filename.length(), 2); //file name length
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fp.writel(0x0000, 2); //extra field length
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fp.print(filename); //file name
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fp.write(data, size); //file data
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}
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~zip() {
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//central directory
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unsigned baseOffset = fp.offset();
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for(auto &entry : directory) {
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fp.writel(0x02014b50, 4); //signature
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fp.writel(0x0014, 2); //version made by (2.0)
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fp.writel(0x0014, 2); //version needed to extract (2.0)
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fp.writel(0x0000, 2); //general purpose bit flags
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fp.writel(0x0000, 2); //compression method (0 = uncompressed)
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fp.writel(dosTime, 2);
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fp.writel(dosDate, 2);
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fp.writel(entry.checksum, 4);
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fp.writel(entry.size, 4); //compressed size
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fp.writel(entry.size, 4); //uncompressed size
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fp.writel(entry.filename.length(), 2); //file name length
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fp.writel(0x0000, 2); //extra field length
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fp.writel(0x0000, 2); //file comment length
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fp.writel(0x0000, 2); //disk number start
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fp.writel(0x0000, 2); //internal file attributes
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fp.writel(0x00000000, 4); //external file attributes
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fp.writel(entry.offset, 4); //relative offset of file header
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fp.print(entry.filename);
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}
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unsigned finishOffset = fp.offset();
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//end of central directory
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fp.writel(0x06054b50, 4); //signature
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fp.writel(0x0000, 2); //number of this disk
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fp.writel(0x0000, 2); //disk where central directory starts
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fp.writel(directory.size(), 2); //number of central directory records on this disk
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fp.writel(directory.size(), 2); //total number of central directory records
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fp.writel(finishOffset - baseOffset, 4); //size of central directory
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fp.writel(baseOffset, 4); //offset of central directory
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fp.writel(0x0000, 2); //comment length
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fp.close();
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}
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protected:
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file fp;
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uint16_t dosTime, dosDate;
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struct entry_t {
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string filename;
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uint32_t checksum;
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uint32_t size;
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uint32_t offset;
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};
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vector<entry_t> directory;
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};
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}
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#endif
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