mirror of
https://github.com/daveallie/crosspoint-reader.git
synced 2026-02-04 22:57:50 +03:00
fb5fc32c5d
## Summary * Swap to updated SDCardManager which uses SdFat * Add exFAT support * Swap to using FsFile everywhere * Use newly exposed `SdMan` macro to get to static instance of SDCardManager * Move a bunch of FsHelpers up to SDCardManager
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
#pragma once
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#include <SdFat.h>
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#include <string>
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#include <unordered_map>
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class ZipFile {
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public:
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struct FileStatSlim {
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uint16_t method; // Compression method
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uint32_t compressedSize; // Compressed size
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uint32_t uncompressedSize; // Uncompressed size
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uint32_t localHeaderOffset; // Offset of local file header
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};
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struct ZipDetails {
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uint32_t centralDirOffset;
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uint16_t totalEntries;
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bool isSet;
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};
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private:
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const std::string& filePath;
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FsFile file;
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ZipDetails zipDetails = {0, 0, false};
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std::unordered_map<std::string, FileStatSlim> fileStatSlimCache;
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bool loadFileStatSlim(const char* filename, FileStatSlim* fileStat);
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long getDataOffset(const FileStatSlim& fileStat);
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bool loadZipDetails();
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public:
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explicit ZipFile(const std::string& filePath) : filePath(filePath) {}
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~ZipFile() = default;
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// Zip file can be opened and closed by hand in order to allow for quick calculation of inflated file size
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// It is NOT recommended to pre-open it for any kind of inflation due to memory constraints
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bool isOpen() const { return !!file; }
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bool open();
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bool close();
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bool loadAllFileStatSlims();
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bool getInflatedFileSize(const char* filename, size_t* size);
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// Due to the memory required to run each of these, it is recommended to not preopen the zip file for multiple
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// These functions will open and close the zip as needed
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uint8_t* readFileToMemory(const char* filename, size_t* size = nullptr, bool trailingNullByte = false);
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bool readFileToStream(const char* filename, Print& out, size_t chunkSize);
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};
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