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Add DX12 bridge preflight checks and runtime override env

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Kelsi 2026-03-09 00:50:09 -07:00
parent 5030f5435f
commit 45feb51e84
3 changed files with 66 additions and 2 deletions
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64
src/rendering/amd_fsr3_wrapper_impl.cpp
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@ -11,6 +11,7 @@
#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <sstream>
#include <string>
#include <type_traits>
#include <vector>
@ -172,6 +173,7 @@ struct RuntimeFns {
};
struct WrapperContext {
WrapperBackend backend = WrapperBackend::VulkanRuntime;
void* backendLibHandle = nullptr;
RuntimeFns fns{};
void* scratchBuffer = nullptr;
@ -225,6 +227,57 @@ void destroyContext(WrapperContext* ctx) {
ctx->backendLibHandle = nullptr;
delete ctx;
}
#if defined(_WIN32)
bool runDx12BridgePreflight(std::string& errorMessage) {
std::vector<std::string> missing;
HMODULE d3d12 = LoadLibraryA("d3d12.dll");
if (!d3d12) {
missing.emplace_back("d3d12.dll");
} else {
FreeLibrary(d3d12);
}
HMODULE dxgi = LoadLibraryA("dxgi.dll");
if (!dxgi) {
missing.emplace_back("dxgi.dll");
} else {
FreeLibrary(dxgi);
}
std::vector<std::string> runtimeCandidates;
if (const char* explicitRuntime = std::getenv("WOWEE_FSR3_DX12_RUNTIME_LIB")) {
if (explicitRuntime && *explicitRuntime) runtimeCandidates.emplace_back(explicitRuntime);
}
runtimeCandidates.emplace_back("amd_fidelityfx_framegeneration_dx12.dll");
runtimeCandidates.emplace_back("ffx_framegeneration_dx12.dll");
bool foundRuntime = false;
for (const std::string& candidate : runtimeCandidates) {
HMODULE runtime = LoadLibraryA(candidate.c_str());
if (runtime) {
FreeLibrary(runtime);
foundRuntime = true;
break;
}
}
if (!foundRuntime) {
missing.emplace_back("amd_fidelityfx_framegeneration_dx12.dll");
}
if (missing.empty()) return true;
std::ostringstream oss;
oss << "dx12_bridge preflight failed, missing: ";
for (size_t i = 0; i < missing.size(); ++i) {
if (i) oss << ", ";
oss << missing[i];
}
errorMessage = oss.str();
return false;
}
#endif
#endif
} // namespace
@ -264,14 +317,20 @@ WOWEE_FSR3_WRAPPER_EXPORT int32_t wowee_fsr3_wrapper_initialize(const WoweeFsr3W
return -1;
}
if (selectBackend() == WrapperBackend::Dx12Bridge) {
const WrapperBackend backend = selectBackend();
if (backend == WrapperBackend::Dx12Bridge) {
#if !defined(_WIN32)
writeError(outErrorText, outErrorTextCapacity,
"dx12_bridge backend is Windows-only in current wrapper build");
return -1;
#else
std::string preflightError;
if (!runDx12BridgePreflight(preflightError)) {
writeError(outErrorText, outErrorTextCapacity, preflightError.c_str());
return -1;
}
writeError(outErrorText, outErrorTextCapacity,
"dx12_bridge backend selected but Vulkan<->DX12 interop dispatch is not implemented yet");
"dx12_bridge preflight passed, but Vulkan<->DX12 interop dispatch is not implemented yet");
return -1;
#endif
}
@ -299,6 +358,7 @@ WOWEE_FSR3_WRAPPER_EXPORT int32_t wowee_fsr3_wrapper_initialize(const WoweeFsr3W
#endif
WrapperContext* ctx = new WrapperContext{};
ctx->backend = backend;
for (const std::string& path : candidates) {
ctx->backendLibHandle = openLibrary(path.c_str());
if (ctx->backendLibHandle) break;