engine/rr: native preset F (DLSS 4.5 Ray Reconstruction) and the reference's fused roundings

- engine/compile_rr2.py, runtime_rr2.inc, engine/rr/rr2_m.comp, exposure_f.comp,
  gen_rr2_enc0.py, rr2_pack.py, rr2_ref.py: the rr2_* model (nvngx_dlssd.dll 310.9's
  third network) as d4r's own shaders - exposure, enc0 gather/block split, enc1-5 and
  dec4-0 through one matrix shader, translated output passes; weights packed from the
  DLL, argument blocks from the capture
- ptx2rr: match the driver's fused roundings - opaque-zero OR around cvt.rn.f16.f32
  against v_fma_mix, half-away-from-zero formatted stores, UNORM 10:10:10:2 as RGBA32F
  of q/1023, OCML tanhF with the AMDGPU exp lowering, binary16 fma and fetch roundings;
  --probe for register bisection against ZLUDA
- dec0_m/swin_m/enc0_*: RR_MIX build option (D4R_RR_MIX=1), one v_fma_mix rounding per
  32-deep step, ~5% faster, not bit-exact; default build stays exact
- runtime_rr.inc: RModel/REngine dispatch to the D4RR0002 model; replay_rr: RGBA32F and
  A2B10G10R1010 texel sizes, roughnessPacked bit, larger debug staging
- shim: engine\rr-f model slot, 310.9 version probe so preset F is only claimed when the
  CUDA path has it; d4r.ini / d4r_config.py Model = F; run_rr_engine_compare.sh D4R_RR_DLL
- kernels/rr/swin_native.h + rr_swin_native_test.cpp: HIP port of encoder 1 for the
  FP8-product and rounding cost measurements
- engine/rr/README: preset F's block, options, capture-by-capture results, timings and
  the open camera-matrix difference

engine/rr/phase_dump.py

@@ -29,7 +29,8 @@ REG = r'%r\d+'
 
 
 def kernel_module(kernel):
-    for p in sorted(Path('~/.cache/d4r-rr-corpus').expanduser().glob('*.ptx')):
+    corpus = '~/.cache/d4r-rr-corpus-f' if kernel.startswith('rr2_') else '~/.cache/d4r-rr-corpus'
+    for p in sorted(Path(corpus).expanduser().glob('*.ptx')):
         if f'.entry {kernel}(' in p.read_text(errors='replace'):
             return p
     raise SystemExit(f'no corpus module for {kernel}')
@@ -80,7 +81,9 @@ def main():
     o = ap.parse_args()
     # the capture decides the kernel: a preset D capture runs cuda_dldn_engine_swin_{enc0,dec0}_diamond_wallaby_kernel
     cap = Capture(os.path.expanduser(o.capture))
-    launch = [l for l in cap.launches if f'swin_{o.stage}' in l.kernel][o.frame - 1]
+    # preset F: STAGE is the kernel's full name (rr2_enc1_kernel, rr2_dec1_kernel_0)
+    rr2 = o.stage.startswith('rr2_')
+    launch = [l for l in cap.launches if (l.kernel == o.stage if rr2 else f'swin_{o.stage}' in l.kernel)][o.frame - 1]
     kernel = launch.kernel
     module = kernel_module(kernel)
     lines = module.read_text().replace('\r', '').split('\n')
@@ -126,7 +129,7 @@ def main():
     cmd = ['systemd-run', '--user', '--scope', '-q', '-p', 'MemoryMax=24G', '-p', 'MemorySwapMax=0']
     cmd += [f'--setenv={k_}={v_}' for k_, v_ in env.items() if k_.startswith('D4R_ZLUDA')]
     r = subprocess.run(cmd + [sys.executable, str(HERE / 'zluda_replay.py'), os.path.expanduser(o.capture),
-                              f'swin_{o.stage}' + ('_diamond' if 'diamond' in kernel else ''), str(o.frame), str(work),
+                              kernel if rr2 else f'swin_{o.stage}' + ('_diamond' if 'diamond' in kernel else ''), str(o.frame), str(work),
                               '--ptx', str(work / 'probe.ptx'),
                               '--pad', str(pad)], capture_output=True, text=True)
     if 'failed' in r.stdout + r.stderr: