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]>

engine/game_m.h

@@ -0,0 +1,33 @@
+// Adapter between a game's own textures and the preset M engine: input conversion, the frame and the copy into
+// the game's output texture, all recorded into the game's command buffer. Separate from GameUpscaler (preset K).
+#pragma once
+#include "game.h"
+
+namespace d4r {
+struct GameFrameM {
+    GameImage color, depth, motion, output;     // as for GameUpscaler; views are not used (inputs are always copied)
+    float jitter[2] = {0, 0};
+    float motionToRender[2] = {1, 1};           // (motion texel + motionOffset) * this = render pixels
+    float motionOffset[2] = {0, 0};             // jittered motion vectors: jitter - previous jitter, motion texel units
+    bool reset = false;
+    bool depthInverted = true;
+};
+class GameUpscalerM {
+public:
+    // The model must outlive this object. The render size is fixed and at most half the output size.
+    GameUpscalerM(MModel& model, VkPhysicalDevice physical, VkDevice device, uint32_t outputWidth, uint32_t outputHeight,
+                  uint32_t renderWidth, uint32_t renderHeight, const ExternalNetwork* external = nullptr);
+    ~GameUpscalerM(); // only once every recorded frame has completed on the GPU
+    GameUpscalerM(const GameUpscalerM&) = delete;
+    GameUpscalerM& operator=(const GameUpscalerM&) = delete;
+    void record(VkCommandBuffer command, const GameFrameM& frame);
+    // With an external network (ExternalNetwork): the part before it (input copies, exposure, input stage) and the
+    // part after it (expansion, reconstruction, downsample, the copy into the game's output). The network must run
+    // between the two on the GPU; the caller orders them (the shim splits the game's command list there).
+    void recordFront(VkCommandBuffer command, const GameFrameM& frame);
+    void recordBack(VkCommandBuffer command, const GameFrameM& frame);
+private:
+    struct Impl;
+    std::unique_ptr<Impl> impl;
+};
+} // namespace d4r