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Build patched Windows ZLUDA and execute native NGX DLSS diagnostics

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Codex committed 2026-09-30 16:35:30 +03:00
1 parent 64472e5a61
commit 3c28a82e34
17 files changed
+1114 -13
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tools/windows/diagnostic.h
+33
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@@ -57,6 +57,18 @@ inline LONG WINAPI unhandled(EXCEPTION_POINTERS* info)
{
std::fprintf(stderr, "EXCEPTION code=0x%08lx address=%p\n",
info->ExceptionRecord->ExceptionCode, info->ExceptionRecord->ExceptionAddress);
if (info->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
info->ExceptionRecord->NumberParameters >= 2)
std::fprintf(stderr, "EXCEPTION_ACCESS operation=%llu target=0x%llx\n",
static_cast<unsigned long long>(info->ExceptionRecord->ExceptionInformation[0]),
static_cast<unsigned long long>(info->ExceptionRecord->ExceptionInformation[1]));
std::fprintf(stderr, "CONTEXT rip=0x%llx rsp=0x%llx rcx=0x%llx rdx=0x%llx r8=0x%llx r9=0x%llx\n",
static_cast<unsigned long long>(info->ContextRecord->Rip),
static_cast<unsigned long long>(info->ContextRecord->Rsp),
static_cast<unsigned long long>(info->ContextRecord->Rcx),
static_cast<unsigned long long>(info->ContextRecord->Rdx),
static_cast<unsigned long long>(info->ContextRecord->R8),
static_cast<unsigned long long>(info->ContextRecord->R9));
loaded_modules();
wchar_t directory[32768]{};
const DWORD n = GetEnvironmentVariableW(L"D4R_DIAG_DIR", directory, 32768);
@@ -74,12 +86,24 @@ inline LONG WINAPI unhandled(EXCEPTION_POINTERS* info)
}
return EXCEPTION_EXECUTE_HANDLER;
}
inline LONG WINAPI first_chance(EXCEPTION_POINTERS* info)
{
// NGX installs its own final exception filter. Capture a diagnostic dump
// before that filter can replace ours; do not swallow or retry the fault.
const auto code = info->ExceptionRecord->ExceptionCode;
if (code == EXCEPTION_ACCESS_VIOLATION || code == EXCEPTION_ILLEGAL_INSTRUCTION) {
static LONG captured = 0;
if (InterlockedCompareExchange(&captured, 1, 0) == 0) (void)unhandled(info);
}
return EXCEPTION_CONTINUE_SEARCH;
}
inline void start()
{
std::setvbuf(stdout, nullptr, _IONBF, 0);
std::setvbuf(stderr, nullptr, _IONBF, 0);
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
SetUnhandledExceptionFilter(unhandled);
AddVectoredExceptionHandler(1, first_chance);
std::printf("d4r native Windows diagnostic x64 pid=%lu\n", GetCurrentProcessId());
}
struct Args {
@@ -89,6 +113,8 @@ struct Args {
std::string ngx_core, dlss_dll;
std::string nvapi_dll;
std::string ngx_abi = "driver";
std::string ngx_mode = "init";
unsigned preset = 11;
std::string fixture_dir;
std::string kernel_name = "enc1";
unsigned iterations = 32;
@@ -108,6 +134,13 @@ struct Args {
else if (key == "--dlss-dll") dlss_dll = value;
else if (key == "--nvapi-dll") nvapi_dll = value;
else if (key == "--ngx-abi") ngx_abi = value;
else if (key == "--ngx-mode") ngx_mode = value;
else if (key == "--preset") {
size_t end = 0;
preset = static_cast<unsigned>(std::stoul(value, &end));
if (end != value.size() || (preset != 5 && preset != 11 && preset != 13))
throw std::runtime_error("preset must be 5 (E), 11 (K) or 13 (M)");
}
else if (key == "--fixture-dir") fixture_dir = value;
else if (key == "--kernel-name") kernel_name = value;
else if (key == "--iterations") {