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Remove redundant function.

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PixieCore 2022-07-03 13:05:14 +02:00
parent 4323f0273d
commit 540b282998
3 changed files with 2 additions and 59 deletions
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4
r5dev/common/opcodes.h
View File

@ -148,8 +148,8 @@ class VOpcodes : public IDetour
{
#ifdef GAMEDLL_S3
/* -------------- OTHER ------------------------------------------------------------------------------------------------------------------------------------------------- */
dst007 = /*0x14028F3B0*/ FindPatternSIMD(g_szGameDll, reinterpret_cast<rsig_t>("\x48\x8B\xC4\x44\x89\x40\x18\x48\x89\x50\x10\x55\x53\x56\x57\x41"), "xxxxxxxxxxxxxxxx");
dst008 = /*0x140E3E110*/ FindPatternSIMD(g_szGameDll, reinterpret_cast<rsig_t>("\x48\x83\xEC\x78\x48\x8B\x84\x24\x00\x00\x00\x00\x4D\x8B\xD8\x00"), "xxxxxxxx????xxx?");
dst007 = /*0x14028F3B0*/ g_mGameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x8B\xC4\x44\x89\x40\x18\x48\x89\x50\x10\x55\x53\x56\x57\x41"), "xxxxxxxxxxxxxxxx");
dst008 = /*0x140E3E110*/ g_mGameDll.FindPatternSIMD(reinterpret_cast<rsig_t>("\x48\x83\xEC\x78\x48\x8B\x84\x24\x00\x00\x00\x00\x4D\x8B\xD8\x00"), "xxxxxxxx????xxx?");
/* -------------- ------- ----------------------------------------------------------------------------------------------------------------------------------------------- */
#endif // GAMEDLL_S3

1
r5dev/public/include/utility.h
View File

@ -5,7 +5,6 @@
BOOL IsBadReadPtrV2(void* ptr);
BOOL FileExists(const fs::path& svFilePath);
MODULEINFO GetModuleInfo(const char* szModule);
DWORD64 FindPatternSIMD(const char* szModule, const unsigned char* szPattern, const char* szMask);
/////////////////////////////////////////////////////////////////////////////
// Debug

56
r5dev/public/utility.cpp
View File

@ -50,62 +50,6 @@ MODULEINFO GetModuleInfo(const char* szModule)
return modinfo;
}
///////////////////////////////////////////////////////////////////////////////
// For finding a pattern in memory of the process with SIMD.
DWORD64 FindPatternSIMD(const char* szModule, const unsigned char* szPattern, const char* szMask)
{
MODULEINFO mInfo = GetModuleInfo(szModule);
DWORD64 dwBase = (DWORD64)mInfo.lpBaseOfDll;
DWORD64 dwSize = (DWORD64)mInfo.SizeOfImage;
unsigned char* pData = (unsigned char*)dwBase;
unsigned int length = (unsigned int)dwSize;
const unsigned char* end = pData + length - strlen(szMask);
int num_masks = (int)ceil((float)strlen(szMask) / (float)16);
int masks[64]; // 64*16 = enough masks for 1024 bytes.
memset(masks, 0, num_masks * sizeof(int));
for (int i = 0; i < num_masks; ++i)
{
for (int j = strnlen(szMask + i * 16, 16) - 1; j >= 0; --j)
{
if (szMask[i * 16 + j] == 'x')
{
masks[i] |= 1 << j;
}
}
}
__m128i xmm1 = _mm_loadu_si128((const __m128i*) szPattern);
__m128i xmm2, xmm3, msks;
for (; pData != end; _mm_prefetch((const char*)(++pData + 64), _MM_HINT_NTA))
{
if (szPattern[0] == pData[0])
{
xmm2 = _mm_loadu_si128((const __m128i*) pData);
msks = _mm_cmpeq_epi8(xmm1, xmm2);
if ((_mm_movemask_epi8(msks) & masks[0]) == masks[0])
{
for (DWORD64 i = 1; i < num_masks; ++i)
{
xmm2 = _mm_loadu_si128((const __m128i*) (pData + i * 16));
xmm3 = _mm_loadu_si128((const __m128i*) (szPattern + i * 16));
msks = _mm_cmpeq_epi8(xmm2, xmm3);
if ((_mm_movemask_epi8(msks) & masks[i]) == masks[i])
{
if ((i + 1) == num_masks)
{
return (DWORD64)pData;
}
}
else goto cont;
}
return (DWORD64)pData;
}
}cont:;
}
return NULL;
}
///////////////////////////////////////////////////////////////////////////////
// For printing output to the debugger.
void DbgPrint(LPCSTR sFormat, ...)