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SMediumAllocPuddle::Free progress

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This commit is contained in:
Phillip Stephens 2025-05-21 11:26:18 -07:00
parent 296ad7bd83
commit 23fea228ab
1 changed files with 14 additions and 12 deletions
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26
src/Kyoto/Alloc/CMediumAllocPool.cpp
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@ -180,7 +180,7 @@ void* SMediumAllocPuddle::FindFreeEntry(uint numBlocks) {
void SMediumAllocPuddle::Free(const void* ptr) {
uint blockOffset = ((uint)ptr - (uint)x0_mainData.get()) / 32;
uint blockCount = x8_bookKeeping[blockOffset];
bool isCached = false;
x14_numBlocks += blockCount;
--x18_numAllocs;
@ -188,30 +188,32 @@ void SMediumAllocPuddle::Free(const void* ptr) {
uchar* cachedBookKeep = bookKeepingStart + blockOffset;
uchar* block = bookKeepingStart + blockOffset;
uchar* bookKeepingPtr = block;
uchar* bookKeepingEndPtr = block + GetNumEntries();
if (cachedBookKeep == block) {
isCached = true;
}
if (block > bookKeepingStart && block[-1] & 0x80) {
if ((block[-1] & 0x60)) {
blockOffset = (((0x40 - (block[-1] & 0x60)) != 0) / 32) + 1;
if (!(block[-1] & 0x60)) {
blockOffset = (block[-2] + (block[-1] & 0x7f) * 256) & 0xFFFF;
} else if ((block[-1] & 0x60) == 0x60ul) {
blockOffset = 3;
} else {
blockOffset = block[-2] + (block[-1] & 0x7f) * 256;
blockOffset = ((((0x40 - (block[-1] & 0x60)))== 0) ? 1 : 0) + 1;
}
bookKeepingPtr = block - ((ushort)blockOffset);
blockOffset = (ushort)(blockCount + ((ushort)blockOffset));
}
uint blockCount2 = blockOffset;
uchar* ptr1 = block + blockCount;
if (ptr1 < bookKeepingStart + x1c_numEntries && (ptr1[0] & 0x80) != 0) {
blockOffset = GetBlockOffset(ptr1, bookKeepingStart + GetNumEntries());
blockCount2 += blockOffset;
if (ptr1 < bookKeepingEndPtr && (ptr1[0] & 0x80) > 0) {
blockOffset += GetBlockOffset(ptr1, bookKeepingEndPtr);
}
InitBookKeeping(bookKeepingPtr, blockCount2);
if (cachedBookKeep == block) {
if (bookKeepingPtr != bookKeepingStart) {
InitBookKeeping(bookKeepingPtr, blockOffset);
if (isCached) {
if (bookKeepingPtr == bookKeepingStart) {
xc_cachedBookKeepingAddr = nullptr;
} else {
xc_cachedBookKeepingAddr = bookKeepingPtr - bookKeepingPtr[-1];
@ -222,7 +224,7 @@ void SMediumAllocPuddle::Free(const void* ptr) {
ushort SMediumAllocPuddle::GetBlockOffset(const void* ptr1, const void* ptr2) {
unsigned char tmp = (uchar*)ptr2 - (uchar*)ptr1 > 1 ? ((uchar*)ptr1)[1] : 0;
ushort x = tmp + (*(uchar*)(ptr1)&0x7f) * 0x100;
ushort x = tmp + (*(uchar*)(ptr1) & 0x7f) * 0x100;
if ((x & 0x6000) == 0) {
return x;
}