74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
#include <cstring>
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#include "LmpFile.h"
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#include "DataAccess.h"
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#include "Helpers.h"
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#include "Logger.h"
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#include "DataUtil.h"
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LmpFile::LmpFile(GameType gameType, const unsigned char* data, int startOffset, int dataLength)
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{
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_gameType = gameType;
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_data = data;
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_startOffset = startOffset;
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_dataLength = dataLength;
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}
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#define LMP_ENTRY_LEN 64
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LmpEntry* LmpFile::findEntry(const char* name)
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{
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LmpEntry* entry = NULL;
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int numEntries = getLEInt32(_data+_startOffset);
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for (int entryNum=0; entryNum<numEntries && entry == NULL; ++entryNum)
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{
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const unsigned char* pEntry = _data + _startOffset + 4 + LMP_ENTRY_LEN * entryNum;
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if (0 == strcmp(name, (const char*)pEntry)){
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const unsigned char* entryDataStart = _data+_startOffset + DataUtil::getLEInt(pEntry, 56);
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entry = new LmpEntry(entryDataStart, DataUtil::getLEInt(pEntry, 60));
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}
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}
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if (entry == nullptr){
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Logger::getLogger()->logFormat("Failed to find LMP entry '%s'\n", name);
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}
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return entry;
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}
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LmpEntry* LmpFile::findEntry(const char* name, const char* extension)
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{
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return findEntry(Helpers::strjoin(name, extension));
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}
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/* returns 1 iff str ends with suffix */
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int str_ends_with(const char * str, const char * suffix) {
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if( str == nullptr || suffix == nullptr )
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return 0;
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size_t str_len = strlen(str);
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size_t suffix_len = strlen(suffix);
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if(suffix_len > str_len)
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return 0;
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return 0 == strncmp( str + str_len - suffix_len, suffix, suffix_len );
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}
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std::vector<std::string> LmpFile::findFilenamesByExtension(const char* extension)
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{
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std::vector<std::string> foundFilenames;
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int numEntries = getLEInt32(_data+_startOffset);
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int extensionLength = strlen(extension);
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for (int entryNum=0; entryNum<numEntries; ++entryNum)
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{
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const unsigned char* pEntry = _data + _startOffset + 4 + LMP_ENTRY_LEN * entryNum;
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const char* pName = (const char*)pEntry;
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int entryNameLen = strlen(pName);
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if (entryNameLen > extensionLength && 0 == strncmp( pName + entryNameLen - extensionLength, extension, extensionLength )){
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foundFilenames.push_back(std::string(pName));
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}
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}
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return foundFilenames;
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}
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