66 lines
No EOL
1.8 KiB
C++
66 lines
No EOL
1.8 KiB
C++
#include "indexparser.h"
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#include <cstdio>
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#include <cstring>
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#include <stdexcept>
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#include <string>
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template<class T>
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void commonParseSqPack(FILE* file, IndexFile<T>& index) {
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fread(&index.packHeader, sizeof(SqPackHeader), 1, file);
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if(strcmp(index.packHeader.magic, "SqPack") != 0) {
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throw std::runtime_error("Invalid sqpack magic.");
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}
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// data starts at size
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fseek(file, index.packHeader.size, SEEK_SET);
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// read index header
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fread(&index.indexHeader, sizeof(SqPackIndexHeader), 1, file);
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if(index.packHeader.version != 1) {
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throw std::runtime_error("Invalid sqpack version.");
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}
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fseek(file, index.indexHeader.indexDataOffset, SEEK_SET);
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}
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IndexFile<IndexHashTableEntry> readIndexFile(const std::string_view path) {
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FILE* file = fopen(path.data(), "rb");
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if(!file) {
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throw std::runtime_error("Failed to read index file from " + std::string(path.data()));
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}
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IndexFile<IndexHashTableEntry> index;
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commonParseSqPack(file, index);
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uint32_t numEntries = index.indexHeader.indexDataSize / sizeof(IndexHashTableEntry);
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for(uint32_t i = 0; i < numEntries; i++) {
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IndexHashTableEntry entry = {};
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fread(&entry, sizeof(IndexHashTableEntry), 1, file);
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index.entries.push_back(entry);
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}
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return index;
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}
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IndexFile<Index2HashTableEntry> readIndex2File(const std::string_view path) {
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FILE* file = fopen(path.data(), "rb");
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if(!file) {
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throw std::runtime_error("Failed to read index2 file from " + std::string(path.data()));
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}
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IndexFile<Index2HashTableEntry> index;
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commonParseSqPack(file, index);
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for(int i = 0; i < index.indexHeader.indexDataSize; i++) {
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Index2HashTableEntry entry = {};
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fread(&entry, sizeof entry, 1, file);
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index.entries.push_back(entry);
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}
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return index;
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} |