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Improved retrieving the hash entry index

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Ladislav Zezula
2023-12-27 20:25:21 +01:00
parent 61b6665433
commit 2e38824099
2 changed files with 110 additions and 80 deletions
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18
src/SFileOpenFileEx.cpp
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@@ -16,10 +16,13 @@
/* Local functions */
/*****************************************************************************/
// Finds hash index of the entry that was open by pseudo-name
static DWORD FindHashIndex(TMPQArchive * ha, DWORD dwFileIndex)
{
TMPQHash * pHashTableEnd;
TMPQHash * pHash;
DWORD dwHashIndex = HASH_ENTRY_FREE;
DWORD dwCount = 0;
// Should only be called if the archive has hash table
assert(ha->pHashTable != NULL);
@@ -31,15 +34,18 @@ static DWORD FindHashIndex(TMPQArchive * ha, DWORD dwFileIndex)
{
if(MPQ_BLOCK_INDEX(pHash) == dwFileIndex)
{
// Find the first hash entry that points to it.
// If there are multiple hash entries that point
// to the same file, only the first one is returned.
return (DWORD)(pHash - ha->pHashTable);
// Example: MPQ_2023_v1_Lusin2Rpg1.28.w3x, file index 24483
// ReplaceableTextures\CommandButtons\BTNHaboss79.blp
// Hash Table Index #1 = 18
// Hash Table Index #2 = 8446
if(dwCount++ > 0)
return HASH_ENTRY_FREE;
dwHashIndex = (DWORD)(pHash - ha->pHashTable);
}
}
// No item was found
return HASH_ENTRY_FREE;
// Return the found hash index, if there are no duplicities
return dwHashIndex;
}
static const char * GetPatchFileName(TMPQArchive * ha, const char * szFileName, char * szBuffer)