 [Source] CRC Logging
Credits Kryptech
Forum Discussion thread http://www.uc-forum.com/forum/showthread.php?t=54122
Well, since I have seen way too many people using NumVerts and PrimCount to do model rec I have decided to releases the better method. This way is more accurate that Strides+NumVertices. What it does(simply) is get the texture being used, Locks it and converts the bits that are locked into a checksum(crc). This will give you a unique value for each texture in the game, which can then be used in your d3d hack for chams, x-ray, wireframe, etc. Basicly anywhere you could have used strides. One of the big advantages to using this method is that there is usually only 1 number to log for each thing. So instead of a long list of NumVerts/PrimCount for 1 object, you just need 1 CRC.
I have used various code from GD and some of my own stuff here. I no longer remember who posted the original stuff, but it never worked anyway lol. So credits to GD for giving me the idea and leading me in the right direction.
EDIT:I have been informed that it was EvilBert that originally introduced this method of detecting things in D3D. So credit to him for originally releasing this method to the public. I have never seen his code and had no help in putting this class together outside of what I read on GD.
The code is mostly self-explanatory, I will try to comment as I go.
This is what generates the crc.
crc.h: Code: unsigned long crctable[256] = {
0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL,
0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L,
0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L,
0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L,
0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL,
0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L,
0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL,
0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L,
0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L,
0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL,
0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L,
0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L,
0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L,
0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL,
0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L,
0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL,
0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL,
0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L,
0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L,
0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L,
0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL,
0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L,
0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL,
0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L,
0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L,
0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL,
0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L,
0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L,
0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L,
0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL,
0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L,
0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL,
0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL,
0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L,
0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L,
0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L,
0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL,
0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L,
0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL,
0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L,
0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L,
0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL,
0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L,
0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L,
0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L,
0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL,
0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L,
0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL,
0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL,
0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L,
0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L,
0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L,
0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL,
0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L,
0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL,
0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L,
0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L,
0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL,
0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L,
0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L,
0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L,
0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL,
0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L,
0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL
};
unsigned long crc32(unsigned char *block, unsigned long len)
{
unsigned long crc = 0xFFFFFFFF;
while (len--)
crc = crctable[(crc ^ *block++) & 0xFFL] ^ (crc >> 8);
return crc ^ 0xFFFFFFFF;
}
This file is for logging the crcs that u find.
Logging.h Code: #include <vector>
#include "main.h"
using namespace std;
class Logging
{
public:
std::vector<DWORD> TexList;
bool Add(std::vector<DWORD> &List, DWORD tex);
bool Remove(std::vector<DWORD> &List, DWORD m_Tex);
void Log(std::vector<DWORD> &List);
};
bool Logging::Add(std::vector<DWORD> &List, DWORD tex)
{
for (unsigned int i = 0; i < List.size(); i++)
{
if (tex == List[i]) return false;
}
List.push_back(tex);
return true;
}
bool Logging::Remove(std::vector<DWORD> &List, DWORD tex)
{
if (!List.empty())
{
for (unsigned int i = 0; i < List.size(); i++)
{
if (tex == List[i])
{
List.erase(List.begin() + i);
return true;
}
}
}
return false;
}
void Logging::Log(std::vector<DWORD> &List)
{
for(unsigned int i=0; i<List.size(); i++)
{
add_log("crc32: 0x%x", List[i]);
}
}
This is the crc32 class, where the actual werk is done.
Ccrc32.h Code: #include "crc.h"
class Ccrc32
{
D3DLOCKED_RECT dLockedRect;
DWORD crc;
public:
DWORD GetCRC(IDirect3DBaseTexture8* pTex);
};
DWORD Ccrc32::GetCRC(IDirect3DBaseTexture8* pTex)
{
if(pTex != NULL)
{
hkIDirect3DTexture8 *oIDirect3DTexture8 = (hkIDirect3DTexture8*)pTex;
if(oIDirect3DTexture8->GetType() == D3DRTYPE_TEXTURE)
{
if(oIDirect3DTexture8->LockRect( 0, &dLockedRect, NULL, D3DLOCK_NOOVERWRITE | D3DLOCK_READONLY )== D3D_OK)
{
DWORD *pData = (DWORD*)dLockedRect.pBits;
if(pData != NULL){ crc = crc32( (BYTE*)pData, 1024 ); }//the second parameter is size. 1024 works good for BHD 2048 worked for bf2142
}
oIDirect3DTexture8->UnlockRect( 0 );
}
}
return crc;
}
The rest of the code goes in d3ddev.cpp
Globals At Top: Code: #include "Ccrc32.h"
#include "Logging.h"
UINT m_Stride;
Ccrc32 CRC;
DWORD m_crc = 0;
std::vector<DWORD> AllTextures;
std::vector<DWORD> TexturesToLog;
Logging Tlog;
int tx = 0;
In Present this is for the logging: Code: if(GetAsyncKeyState(VK_F3)&1){ logging = !logging; }
if(GetAsyncKeyState(VK_NUMPAD9)&1){ Tlog.Log(TexturesToLog); }
if(GetAsyncKeyState(VK_NUMPAD7)&1){ Tlog.Log(AllTextures); }
As you will see here I use Strides to narrow down the textures to log, this is just to make things a bit easier and is optional.
In SetTexture: Code: m_crc = CRC.GetCRC(pTexture);
if(m_Stride == 64)
{
Tlog.Add(AllTextures, m_crc);
}
This part will iterate through all the textures coloring them as you go.
In DIP: Code: if(GetAsyncKeyState(VK_NUMPAD6)&1){ tx++; }
if(GetAsyncKeyState(VK_NUMPAD4)&1){ tx--; }
if(GetAsyncKeyState(VK_NUMPAD8)&1){ Tlog.Add(TexturesToLog, AllTextures[tx]); }
if( AllTextures.size() != 0)
{
if(m_crc == AllTextures[tx])
{
// SetTexture(0, NULL);
DWORD dwOldZEnable = D3DZB_TRUE;
m_pD3Ddev->GetRenderState(D3DRS_ZENABLE, &dwOldZEnable);
m_pD3Ddev->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE); //disable the Z buffer (wallhack)
m_pD3Ddev->SetPixelShader(pxGre);
m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
m_pD3Ddev->SetRenderState(D3DRS_ZENABLE, dwOldZEnable); //re-enable Z buffer
m_pD3Ddev->SetPixelShader(pxRed);
return m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
}
}
and Finally, this is how to implement them:
in DIP: Code: if(m_crc == 0x9d2b956a)//enemy crc
{
DWORD dwOldZEnable = D3DZB_TRUE;
m_pD3Ddev->GetRenderState(D3DRS_ZENABLE, &dwOldZEnable);
m_pD3Ddev->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE); //disable the Z buffer (wallhack)
m_pD3Ddev->SetPixelShader(pxGre);
m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
m_pD3Ddev->SetRenderState(D3DRS_ZENABLE, dwOldZEnable); //re-enable Z buffer
m_pD3Ddev->SetPixelShader(pxRed);
return m_pD3Ddev->DrawIndexedPrimitive(PrimitiveType, minIndex, NumVertices, startIndex, primCount);
}
That is just about it. The majority of the code there is for the logging and can be taken out once you have logged them all. This is c/p from my hook, so it will work just as it is. I have used this in other games including BF2 and BF2142. Hope this helps people in understanding d3d a little better.
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