Files
d4r/tools/windows/fsr_rr_backend.h
T
ayo a617c818de TL;DR: Add an experimental FSR Ray Regeneration backend on Windows, run the K
network natively on HIP with Vulkan->HIP shared memory, extend K kernels to
gfx11 (RDNA3), and add dependency/packaging/test tooling around them.

Windows: FSR RR backend, native HIP K runner, gfx11 K kernels, tooling

FSR Ray Regeneration (experimental)
- Add fsr_rr_backend.{h,cpp}, fsr_rr_passes.h and the fsr_rr/ prepare and
  compose compute shaders. They run AMD's FidelityFX denoiser
  (amd_fidelityfx_denoiser_dx12.dll, SDK 2.3, not bundled) on a private
  vkd3d-proton device.
- Add the amdxc64 shim (tools/windows/amdxc64_shim) and two vkd3d-proton
  patches for libcxx includes. AMD's amdxc64.dll is never loaded.
- d4r_nvngx_windows: RrFeature now selects between the native DLSS RR
  backend and the FSR backend (D4R_RR_BACKEND=fsr). After the denoiser it
  runs an internal Super Sampling stage (feature 1) to upscale. If SR is
  unavailable and output != render size, the frame fails; it is never
  returned noisy.
- d4r.ini / player_config: new [RayReconstruction] FsrDenoiser,
  FsrStabilityBias (auto or >= 0) and FsrDetail (0-1), with validation, and
  matching D4R_FSR_* environment variables.
- Add the FSR RR fixture, output-check and ngx test scripts, and a shader
  compile script.

Native HIP K runner (Windows)
- CMake: add d4r_engine_k_hip (d4r-k-hip) plus separate volk/engine copies,
  because VK_USE_PLATFORM_WIN32_KHR changes volk's entry points.
- Share Vulkan memory with HIP via Win32 opaque handles on Windows
  (VK_KHR_external_memory_win32) and via fds on Linux. Handle types are now
  intptr_t, and the platform choice is in D4R_EXT_MEMORY_* macros.
- HipNetwork: add debugRepeatHashes and debugNodeMicros, exposed as
  D4R_HIP_REPEAT_CHECK, D4R_HIP_REPEAT_ALL and D4R_HIP_NODE_PROFILE in
  replay.cpp.
- replay.cpp: display-resolution-motion frames (FrameFlagDisplayMotion) no
  longer require near2rnd == out2rnd. Both values must still be in (0, 1].

K kernels on gfx11
- Allow position-token and enc1 tiling on __GFX11__ as well as gfx12.
- Add an opt-in ds_bpermute cross-half exchange
  (D4R_WINDOWS_GFX11_DS_EXCHANGE, enabled for K on Windows gfx11). M keeps
  its LDS path.
- Fix a block-barrier race in the position layer. Without POS_VSHARE a fast
  wave could overwrite its hb rows while a slower wave still read them for a
  later head, giving rare wrong results on gfx1101 (enc0 outputs differing
  between identical launches).

Packaging and install
- install.bat, d4r.ini, WINDOWS_README: FSR option, and
  install_dependencies.py to install pinned NVIDIA dependencies with staged,
  hash-verified replacement and rollback.
- Update the release package, local package refresh and test scripts.
- Add the InteropBatchInputCopies option (default false). Batching is faster
  on some synthetic runs, but player temporal exactness is unresolved.

Tooling and tests
- K model: capture_k_weights, build_k_model, compare_k_outputs,
  benchmark_k_hip, build_capture_runtime, test_k_model and the
  zluda-k-output-capture patch. Captured weights and models are private
  local assets and must not enter release archives.
- Synthetic probes: test_m_ngx, test_sr_dynamic,
  prepare_rr_dynamic_fixture and the d3d12/rr_ngx probe updates.
- Add tests/windows/test_install_dependencies.py.

Docs
- Update the windows-fsr-rr, k-performance, local-package, rr-interop and
  rr-model-cache docs. Add windows-parity-handoff.md and
  windows-parity-continuation-prompt.md.
2026-10-17 01:43:06 -04:00

42 lines
2.3 KiB
C++

#pragma once
#include "d3d12_external.h"
#include "rr_ngx_snapshot.h"
#include <functional>
#include <memory>
#include <string>
namespace d4r::win::rr {
// Where the experimental FSR Ray Regeneration backend finds its pieces. All paths are explicit: nothing is
// searched for, and AMD's amdxc64.dll is never loaded.
struct FsrConfig {
std::wstring vkd3dCore; // d4r's vkd3d-proton d3d12core.dll, renamed so it cannot collide with the system's
std::wstring denoiserDll; // AMD's amd_fidelityfx_denoiser_dx12.dll (FidelityFX SDK 2.3), unmodified
std::wstring amdxcShim; // d4r's amdxc64 shim (tools/windows/amdxc64_shim)
std::wstring cacheDir; // vkd3d-proton's shader cache: the denoiser's shaders are compiled once
static FsrConfig from_environment();
};
// FSR Ray Regeneration as the Ray Reconstruction backend on native Windows. The game's guides cross to a private
// vkd3d-proton device (D3D12 over Vulkan, dxil-spirv FP8 emulation) through the same shared packet the native
// DLSS backend uses; AMD's denoiser runs there. Evaluation is synchronous, as the native backend's is.
// The denoiser works at render resolution. When the output is larger (or a Super Sampling stage is wanted at all),
// the owner installs one with set_super_sampling(): the denoised colour is then copied into a texture on the game's
// device and handed to that callback together with the frame, which must record/submit the upscale into the game's
// output on `queue`. Without it an output larger than the render size is refused, never returned noisy.
class FsrBackend {
struct Impl;
std::unique_ptr<Impl> impl;
public:
FsrBackend(ID3D12Device* device, const Creation& creation, const FsrConfig& config);
~FsrBackend();
FsrBackend(const FsrBackend&) = delete;
FsrBackend& operator=(const FsrBackend&) = delete;
using SuperSampling = std::function<void(ID3D12CommandQueue*, ID3D12Resource* denoised, const Snapshot&,
const std::array<ResourceAccess, Snapshot::Count>&)>;
void set_super_sampling(SuperSampling stage, const std::array<unsigned, 4>& renderLimits);
void validate_frame(const Snapshot& frame);
void evaluate(ID3D12CommandQueue* queue, const Snapshot& frame, const std::array<ResourceAccess, Snapshot::Count>& access);
void drain();
};
}