mirror of
https://github.com/DxWnd/DxWnd.reloaded
synced 2024-12-30 09:25:35 +01:00
101 lines
3.7 KiB
C++
101 lines
3.7 KiB
C++
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#include <dxdiag.h>
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#include "dxwnd.h"
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#include "dxwcore.hpp"
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#include "syslibs.h"
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#include "dxhook.h"
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#include "dxhelper.h"
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extern HRESULT WINAPI extDirectDrawCreate(GUID FAR *, LPDIRECTDRAW FAR *, IUnknown FAR *);
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extern HRESULT WINAPI extDirectDrawCreateEx(GUID FAR *, LPDIRECTDRAW FAR *, REFIID, IUnknown FAR *);
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FARPROC Remap_ole32_ProcAddress(LPCSTR proc, HMODULE hModule)
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{
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if (!strcmp(proc,"CoCreateInstance")){
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pCoCreateInstance=(CoCreateInstance_Type)(*pGetProcAddress)(hModule, proc);
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OutTraceD("GetProcAddress: hooking proc=%s at addr=%x\n", ProcToString(proc), pCoCreateInstance);
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return (FARPROC)extCoCreateInstance;
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}
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return NULL;
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}
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// -------------------------------------------------------------------------------------
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// Ole32 CoCreateInstance handling: you can create DirectDraw objects through it!
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// utilized so far in a single game: Axiz & Allies
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// -------------------------------------------------------------------------------------
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static void HookDDSession(LPDIRECTDRAW *, int);
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//CoCreateInstance_Type pCoCreateInstance=NULL;
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HRESULT STDAPICALLTYPE extCoCreateInstance(REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID riid, LPVOID FAR* ppv)
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{
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HRESULT res;
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OutTraceD("CoCreateInstance: rclsid=%x UnkOuter=%x ClsContext=%x refiid=%x\n",
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rclsid, pUnkOuter, dwClsContext, riid);
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// CLSID e436ebb3 implies loading quartz.dll to play movies through dshow:
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// quartz.dll must be hooked.
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if (*(DWORD *)&rclsid==0xe436ebb3){
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HMODULE qlib;
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OutTraceD("CoCreateInstance: CLSID_FilterGraph RIID=%x\n", *(DWORD *)&riid);
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qlib=(*pLoadLibraryA)("quartz.dll");
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OutTraceD("CoCreateInstance: quartz lib handle=%x\n", qlib);
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extern void HookSysLibs(HMODULE);
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HookSysLibs(qlib);
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}
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res=(*pCoCreateInstance)(rclsid, pUnkOuter, dwClsContext, riid, ppv);
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if(res)
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OutTraceE("CoCreateInstance: ERROR res=%x\n", res);
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else
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OutTraceD("CoCreateInstance: ppv=%x->%x\n", *ppv, *(DWORD *)*ppv);
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if (*(DWORD *)&rclsid==*(DWORD *)&CLSID_DirectDraw){
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LPDIRECTDRAW lpOldDDraw;
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OutTraceD("CoCreateInstance: CLSID_DirectDraw object\n");
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switch (*(DWORD *)&riid){
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case 0x6C14DB80:
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OutTraceD("DirectDrawCreate: IID_DirectDraw RIID\n");
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res=extDirectDrawCreate(NULL, (LPDIRECTDRAW *)&ppv, 0);
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if(res)OutTraceD("DirectDrawCreate: res=%x(%s)\n", res, ExplainDDError(res));
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break;
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case 0xB3A6F3E0:
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OutTraceD("DirectDrawCreate: IID_DirectDraw2 RIID\n");
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res=extDirectDrawCreate(NULL, &lpOldDDraw, 0);
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if(res)OutTraceD("DirectDrawCreate: res=%x(%s)\n", res, ExplainDDError(res));
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res=lpOldDDraw->QueryInterface(IID_IDirectDraw2, (LPVOID *)&ppv);
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if(res)OutTraceD("QueryInterface: res=%x(%s)\n", res, ExplainDDError(res));
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lpOldDDraw->Release();
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break;
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case 0x9c59509a:
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OutTraceD("DirectDrawCreate: IID_DirectDraw4 RIID\n");
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res=extDirectDrawCreate(NULL, &lpOldDDraw, 0);
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if(res)OutTraceD("DirectDrawCreate: res=%x(%s)\n", res, ExplainDDError(res));
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res=lpOldDDraw->QueryInterface(IID_IDirectDraw4, (LPVOID *)&ppv);
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if(res)OutTraceD("QueryInterface: res=%x(%s)\n", res, ExplainDDError(res));
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lpOldDDraw->Release();
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case 0x15e65ec0:
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OutTraceD("CoCreateInstance: IID_DirectDraw7 RIID\n");
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res=extDirectDrawCreateEx(NULL, (LPDIRECTDRAW *)&ppv, IID_IDirectDraw7, 0);
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if(res)OutTraceD("DirectDrawCreateEx: res=%x(%s)\n", res, ExplainDDError(res));
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break;
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case 0xe436ebb3:
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break;
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}
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}
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else
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if (*(DWORD *)&rclsid==*(DWORD *)&CLSID_DxDiagProvider) res=HookDxDiag(riid, ppv);
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return res;
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}
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int HookOle32(HMODULE module, int version)
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{
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// used by Axis & Allies ....
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void *tmp;
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//return 0;
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OutTraceD("HookOle32 version=%d\n", version); //GHO
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tmp = HookAPI(module, "ole32.dll", NULL, "CoCreateInstance", extCoCreateInstance);
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if(tmp) pCoCreateInstance = (CoCreateInstance_Type)tmp;
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return 0;
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}
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