mirror of
https://github.com/DerKoun/bsnes-hd.git
synced 2025-04-02 10:52:49 -04:00
81 lines
2 KiB
C++
81 lines
2 KiB
C++
#include <emulator/emulator.hpp>
|
|
|
|
#include "7zAlloc.c"
|
|
#include "7zArcIn.c"
|
|
#include "7zBuf.c"
|
|
#include "7zCrc.c"
|
|
#include "7zCrcOpt.c"
|
|
#include "7zDec.c"
|
|
#include "7zFile.c"
|
|
#include "7zStream.c"
|
|
#include "Bcj2.c"
|
|
#include "Bra.c"
|
|
#include "Bra86.c"
|
|
#include "BraIA64.c"
|
|
#include "CpuArch.c"
|
|
#include "Delta.c"
|
|
#undef kBitModelTotal
|
|
#undef kTopValue
|
|
#include "LzmaDec.c"
|
|
#include "Lzma2Dec.c"
|
|
#define kInputBufSize ((size_t)1 << 18)
|
|
|
|
namespace LZMA {
|
|
|
|
auto extract(string_view filename) -> vector<uint8_t> {
|
|
vector<uint8_t> result;
|
|
|
|
static bool initialized = false;
|
|
if(!initialized) {
|
|
initialized = true;
|
|
CrcGenerateTable();
|
|
}
|
|
|
|
static ISzAlloc allocate = {SzAlloc, SzFree};
|
|
static ISzAlloc allocateTemporary = {SzAllocTemp, SzFreeTemp};
|
|
|
|
CFileInStream archive;
|
|
#if defined(PLATFORM_WINDOWS)
|
|
if(InFile_OpenW(&archive.file, (const wchar_t*)utf16_t(filename)) != SZ_OK) return result;
|
|
#else
|
|
if(InFile_Open(&archive.file, (const char*)filename) != SZ_OK) return result;
|
|
#endif
|
|
FileInStream_CreateVTable(&archive);
|
|
|
|
CLookToRead2 look;
|
|
LookToRead2_CreateVTable(&look, false);
|
|
look.buf = (Byte*)ISzAlloc_Alloc(&allocate, kInputBufSize);
|
|
look.bufSize = kInputBufSize;
|
|
look.realStream = &archive.vt;
|
|
LookToRead2_Init(&look);
|
|
|
|
CSzArEx db;
|
|
SzArEx_Init(&db);
|
|
if(SzArEx_Open(&db, &look.vt, &allocate, &allocateTemporary) != SZ_OK || db.NumFiles == 0) {
|
|
SzArEx_Free(&db, &allocate);
|
|
return result;
|
|
}
|
|
|
|
for(uint index : range(db.NumFiles)) {
|
|
if(SzArEx_IsDir(&db, index)) continue;
|
|
|
|
UInt32 blockIndex = -1;
|
|
Byte* filedata = nullptr;
|
|
size_t filesize = 0;
|
|
size_t offset = 0;
|
|
size_t count = 0;
|
|
if(SzArEx_Extract(&db, &look.vt, index, &blockIndex,
|
|
&filedata, &filesize, &offset, &count, &allocate, &allocateTemporary
|
|
) == SZ_OK) {
|
|
result.resize(filesize);
|
|
memory::copy(result.data(), filedata, filesize);
|
|
ISzAlloc_Free(&allocate, filedata);
|
|
break;
|
|
}
|
|
}
|
|
|
|
SzArEx_Free(&db, &allocate);
|
|
return result;
|
|
}
|
|
|
|
}
|