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[makerom] misc

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jakcron
2015-11-15 03:41:47 +08:00
parent 9ca12816ef
commit f8e3b47231
1 changed files with 7 additions and 6 deletions
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makerom/romfs_gen.c
+7 -6
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@@ -19,7 +19,7 @@ void PopulateRomfs(romfs_buildctx *ctx);
void BuildRomfsHeader(romfs_buildctx *ctx); void BuildRomfsHeader(romfs_buildctx *ctx);
void BuildIvfcHeader(romfs_buildctx *ctx); void BuildIvfcHeader(romfs_buildctx *ctx);
void GenIvfcHashTree(romfs_buildctx *ctx); void GenIvfcHashTree(romfs_buildctx *ctx);
u32 CalcPathHash(u32 parent, const romfs_char* path, u32 start, u32 length); u32 CalcPathHash(u32 parent, const romfs_char* path);
int PrepareBuildRomFsBinary(ncch_settings *ncchset, romfs_buildctx *ctx) int PrepareBuildRomFsBinary(ncch_settings *ncchset, romfs_buildctx *ctx)
@@ -279,13 +279,13 @@ void BuildRomfsHeader(romfs_buildctx *ctx)
u32 GetFileHashTableIndex(romfs_buildctx *ctx, u32 parent, const romfs_char *path) u32 GetFileHashTableIndex(romfs_buildctx *ctx, u32 parent, const romfs_char *path)
{ {
u32 hash = CalcPathHash(parent, path, 0, romfs_strlen(path)); u32 hash = CalcPathHash(parent, path);
return hash % ctx->m_fileHashTable; return hash % ctx->m_fileHashTable;
} }
u32 GetDirHashTableIndex(romfs_buildctx *ctx, u32 parent, const romfs_char* path) u32 GetDirHashTableIndex(romfs_buildctx *ctx, u32 parent, const romfs_char* path)
{ {
u32 hash = CalcPathHash(parent, path, 0, romfs_strlen(path)); u32 hash = CalcPathHash(parent, path);
return hash % ctx->m_dirHashTable; return hash % ctx->m_dirHashTable;
} }
@@ -459,13 +459,14 @@ void GenIvfcHashTree(romfs_buildctx *ctx)
return; return;
} }
u32 CalcPathHash(u32 parent, const romfs_char* path, u32 start, u32 length) u32 CalcPathHash(u32 parent, const romfs_char* path)
{ {
u32 len = romfs_strlen(path);
u32 hash = parent ^ 123456789; u32 hash = parent ^ 123456789;
for( u32 index = 0; index < length; index++ ) for( u32 i = 0; i < len; i++ )
{ {
hash = (u32)((hash >> 5) | (hash << 27));//ror hash = (u32)((hash >> 5) | (hash << 27));//ror
hash ^= (u16)path[start + index]; hash ^= (u16)path[i];
} }
return hash; return hash;
} }