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74 lines
2.2 KiB
74 lines
2.2 KiB
/** |
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* @file mpq/mpq_writer.hpp |
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* |
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* Interface of functions for creating and editing MPQ files. |
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*/ |
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#pragma once |
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#include <cstddef> |
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#include <cstdint> |
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#include "mpq/mpq_common.hpp" |
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#include "utils/logged_fstream.hpp" |
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namespace devilution { |
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class MpqWriter { |
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public: |
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explicit MpqWriter(const char *path); |
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explicit MpqWriter(const std::string &path) |
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: MpqWriter(path.c_str()) |
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{ |
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} |
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MpqWriter(MpqWriter &&other) = default; |
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MpqWriter &operator=(MpqWriter &&other) = default; |
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~MpqWriter(); |
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bool HasFile(const char *name) const; |
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void RemoveHashEntry(const char *filename); |
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void RemoveHashEntries(bool (*fnGetName)(uint8_t, char *)); |
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bool WriteFile(const char *filename, const std::byte *data, size_t size); |
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void RenameFile(const char *name, const char *newName); |
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private: |
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bool IsValidMpqHeader(MpqFileHeader *hdr) const; |
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uint32_t GetHashIndex(uint32_t index, uint32_t hashA, uint32_t hashB) const; |
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uint32_t FetchHandle(const char *filename) const; |
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bool ReadMPQHeader(MpqFileHeader *hdr); |
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MpqBlockEntry *AddFile(const char *filename, MpqBlockEntry *block, uint32_t blockIndex); |
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bool WriteFileContents(const char *filename, const std::byte *fileData, size_t fileSize, MpqBlockEntry *block); |
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// Returns an unused entry in the block entry table. |
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MpqBlockEntry *NewBlock(uint32_t *blockIndex = nullptr); |
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// Marks space at `blockOffset` of size `blockSize` as free (unused) space. |
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void AllocBlock(uint32_t blockOffset, uint32_t blockSize); |
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// Returns the file offset that is followed by empty space of at least the given size. |
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uint32_t FindFreeBlock(uint32_t size); |
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bool WriteHeaderAndTables(); |
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bool WriteHeader(); |
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bool WriteBlockTable(); |
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bool WriteHashTable(); |
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void InitDefaultMpqHeader(MpqFileHeader *hdr); |
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LoggedFStream stream_; |
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std::string name_; |
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std::uintmax_t size_ {}; |
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std::unique_ptr<MpqHashEntry[]> hashTable_; |
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std::unique_ptr<MpqBlockEntry[]> blockTable_; |
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// Amiga cannot Seekp beyond EOF. |
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// See https://github.com/bebbo/libnix/issues/30 |
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#ifndef __AMIGA__ |
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#define CAN_SEEKP_BEYOND_EOF |
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#endif |
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#ifndef CAN_SEEKP_BEYOND_EOF |
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long streamBegin_; |
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#endif |
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}; |
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} // namespace devilution
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