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xkingdom: func_0011FE88 (#6)

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* xkingdom: func_0011FE88 matching

* remove accidental new-line
This commit is contained in:
Luciano Ciccariello 2023-10-15 16:40:10 +01:00 committed by GitHub
parent 1e6a9b4772
commit 414a0ed963
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 34 additions and 2 deletions
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36
src/xkingdom.c
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@ -22,7 +22,7 @@ void func_0010BF08(void (*)(XCrown*), XCrown*);
void func_0010BF50(void (*)(XCrown*));
void func_0011FB78(void);
void func_0011FB98(s32 lsn, s32, char*);
s32 func_0011FE88(void*, s32);
s32 func_0011FE88(u8 *data, s32 compressedLength);
s32 func_0011FF40(char* str);
s32 func_001EE068(void);
s32 func_00218C88(void);
@ -93,7 +93,39 @@ void func_0011FE80(XCrown* arg0) {
arg0->unk_00 = 0;
}
INCLUDE_ASM(const s32, "xkingdom", func_0011FE88);
// in-place decompression algorithm
s32 func_0011FE88(u8* data, s32 compressedLength) {
s32 copyLength;
s32 decompressedLength;
s32 i;
u8 key;
u8* srcPtr;
u8* dstPtr;
u8 copyIndex;
u8 ch;
srcPtr = &data[compressedLength];
key = *--srcPtr;
decompressedLength = *--srcPtr | (*--srcPtr << 8) | (*--srcPtr << 0x10);
dstPtr = &data[decompressedLength];
while (data < srcPtr) {
ch = *--srcPtr;
if (ch == key) {
copyIndex = *--srcPtr;
if (copyIndex == 0) {
*--dstPtr = ch;
} else {
copyLength = *--srcPtr + 3;
for (i = 0; i < copyLength; i++) {
*--dstPtr = dstPtr[copyIndex];
}
}
} else {
*--dstPtr = ch;
}
}
return decompressedLength;
}
// hash
s32 func_0011FF40(char* str) {