ZLUDA/samples/opengl/ogldet.cpp
Andrzej Janik dabc40cb19 Squashed 'ext/detours/' content from commit 39aa864
git-subtree-dir: ext/detours
git-subtree-split: 39aa864d2985099c8d847e29a5fb86618039b9c4
2021-01-03 17:52:14 +01:00

75 lines
2.0 KiB
C++

//////////////////////////////////////////////////////////////////////////////
//
// Module: ogldet.dll
//
// This DLL is based on the sample simple.dll. A detour is inserted for
// the OpenGL glFinish function.
//
#include <stdio.h>
#include <windows.h>
#include <GL/gl.h>
#include "detours.h"
static void (WINAPI * trueGlFinish)(void) = glFinish;
void WINAPI hookedGlFinish(void)
{
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" hookedGlFinish Starting.\n");
fflush(stdout);
trueGlFinish();
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" hookedGlFinish done.\n");
fflush(stdout);
}
BOOL WINAPI DllMain(HINSTANCE hinst, DWORD dwReason, LPVOID reserved)
{
LONG error;
(void)hinst;
(void)reserved;
if (DetourIsHelperProcess()) {
return TRUE;
}
if (dwReason == DLL_PROCESS_ATTACH) {
DetourRestoreAfterWith();
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" Starting.\n");
fflush(stdout);
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourAttach(&(PVOID&)trueGlFinish, hookedGlFinish);
error = DetourTransactionCommit();
if (error == NO_ERROR) {
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" Detoured glFinish().\n");
}
else {
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" Error detouring glFinish(): %d\n", error);
}
}
else if (dwReason == DLL_PROCESS_DETACH) {
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
DetourDetach(&(PVOID&)trueGlFinish, hookedGlFinish);
error = DetourTransactionCommit();
printf("ogldet" DETOURS_STRINGIFY(DETOURS_BITS) ".dll:"
" Removed detour glFinish() (result=%d)\n", error);
fflush(stdout);
}
return TRUE;
}
//
///////////////////////////////////////////////////////////////// End of File.