Engine: native presets K and M in the D3D12 shim, wider game coverage

A standalone Vulkan inference engine (engine/) for DLSS presets K and M that
runs from weights extracted from the user's own nvngx_dlss.dll, with d4r's
own input, network and reconstruction shaders or the native HIP network
layers, recorded into the game's command list by the shim. Opt-in
([Engine] Enabled / D4R_ENGINE=1); anything uncovered falls back to the
CUDA/ZLUDA path with the reason logged.

Byte-identical to NGX's CUDA backend under the phase-capable reference
(1706x960 -> 2560x1440, native HIP network, eleven frames, RX 9070 XT):
- K render- and display-resolution motion vectors, HDR and LDR
- K game-supplied exposure and automatic exposure with any pre-exposure
  and exposure scale (one residual: effective exposure exactly 2 or 4)
- K and M with the DLSS indicator's inverted-axis parameters
- M with any exposure settings (NGX ignores them for M)
K packages need the current compile_k.py (marker D4RO0003).

Also: HIP shared buffers are pooled across feature recreation (ROCm leaks
destroyed imports), hipnet.bin must match the preset, M-only games do not
load the K model, install_d4r_runtime.sh stages k, k-ldr, m, m-ldr with
hip/, the activation table has a generator (gen_activation_m.py), and
package_release.sh can bundle the engine's shaders (never its weights).

Signed-off-by: woutermans <[email protected]>

packaging/d4r.ini

@@ -60,6 +60,19 @@ ElideNgxSync = true
 ; effect only while d4r's own output kernel runs, which it does when the DLSS library matches.
 DirectOutput = auto
 
+[Engine]
+; Experimental. Runs DLSS 4 and 4.5 (models K and M) on d4r's own Vulkan inference engine instead of NVIDIA's
+; kernels: the game shows the result of the frame it just rendered and [Latency] / [Interop] do not apply.
+; Needs Mesa RADV with VK_KHR_cooperative_matrix and the models in d4r\engine\k, k-ldr, m and m-ldr
+; (see D4R_README.txt). Games or settings it does not cover use the normal path; d4r_nvngx.log says why.
+Enabled = false
+; Another model K folder for games with the HDR flag (a path relative to the d4r folder, or a Windows path
+; such as Z:\home\me\k)
+ModelDir = auto
+; auto / hip = the network on d4r's native HIP layer kernels when the model folder has them (faster),
+; vulkan = on the engine's shader
+Network = auto
+
 [Paths]
 ; Linux paths.
 ; ROCm installation (default: the ROCm runtime in d4r\rocm, else /opt/rocm)