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lightningbolt
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pull in decompiled decompressor 

I need to figure out how decompressed sizes are done before fully making this work.
This commit is contained in:
Lily Tsuru 2023-11-19 07:29:42 -05:00
parent f1f081c114
commit 582b2a1933
1 changed files with 61 additions and 7 deletions
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68
src/main.cpp
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@ -5,6 +5,67 @@
#include <structs/BoltStructs.hpp>
#include <vector>
std::vector<u8> BoltDecompress(std::span<u8> data) {
u8* inptr = data.data();
std::vector<u8> res;
i32 iVar3;
i32 iVar6;
u32 uVar5;
u32 pbVar4; // outrun
for(u32 i = 0; i < data.size(); ++i) {
auto uVar7 = inptr[i];
if(uVar7 < 128) {
iVar3 = iVar3 + uVar5 * 8 + ((int)(uVar7 & 0x70) >> 4);
pbVar4 = -(iVar6 * 0x10 + (uVar7 & 0xf) + 1);
iVar6 = iVar3 + 1;
if(iVar3 != -2) {
do {
//*pOut = *pbVar4;
pbVar4 = pbVar4 + 1;
//bVar1 = iVar6 != 0;
// pOut = pOut + 1;
iVar6 = iVar6 + -1;
} while(iVar6 != 0);
}
iVar6 = 0;
iVar3 = 0;
uVar5 = 0;
} else if(uVar7 < 144) {
iVar3 = uVar5 * 0x10 + (uVar7 & 0xf) + 1;
while(iVar3 != 0) {
iVar3 = iVar3 + -1;
//*pOut = *pbRam00590aa8;
// pOut = pOut + 1;
// pbRam00590aa8 = pbRam00590aa8 + 1;
// iRam00590ab0 = iRam00590ab0 + -1;
// if(iRam00590ab0 == 0) {
// NextBlock();
//}
}
iVar3 = 0;
uVar5 = 0;
} else if(uVar7 < 160) {
uVar5 = uVar7 & 3;
iVar3 = iVar3 + 1;
iVar6 = (int)(uVar7 & 0xc) >> 2;
} else if(uVar7 < 192) {
uVar5 = uVar5 * 0x20 + (uVar7 & 0x1f);
iVar3 = iVar3 + 1;
} else {
iVar3 = iVar3 + 1;
iVar6 = iVar6 * 0x40 + (uVar7 & 0x3f);
}
}
return res;
}
struct BoltReader {
struct ParsedTableEntry {
std::string_view filename;
@ -64,17 +125,10 @@ struct BoltReader {
if(file.uncompressedData.empty()) {
auto gid = (file.gid >> 8);
auto entries = lib->GroupDescriptors()[gid].Entries(boltFile.GetMapping());
// std::cout << std::format("ptr: {} {:08x}\n", (void*)entries.data(), (u32)(std::bit_cast<usize>(entries.data()) - (usize)lib));
auto size = entries[file.index & 0x00ff].fileSize;
auto offset = entries[file.index & 0x00ff].fileOffset;
file.uncompressedData = { std::bit_cast<u8*>(boltFile.GetMapping() + offset), size };
// for(i32 i = 0; i < entries.size(); ++i) {
// std::cout << std::format("dick {}: {:08x}\n", i, entries[i].fileOffset);
// }
}
if(!f(file))