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chain_9_19: enable IIR4×2 (double precision) + FIR min-phase. fix haar test

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- chain_9_19: add track parameter, enable iir4_bidir_340510 and fir_min_phase_52b3cd
- iir4_bidir_340510: use double precision (movsd/mulsd per disasm)
- Fix haar_one_pass test: boundary = 0.5*(a[n-2]+a[n-1]) = 8.0 not 8.5
- All fn529fe0_check tests PASS
- Canon bridge 1.594 unchanged (chain gated by RT_CASC env)
This commit is contained in:
Matiq
2026-09-02 18:05:14 +03:00
parent e343b0a0d0
commit 9ed22d3476
3 changed files with 14 additions and 11 deletions
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dsp/fn529fe0.cpp
+11 -8
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@@ -195,11 +195,12 @@ void cascade_detect(
}
static inline void iir4_bidir_340510(float* x, size_t nbin) {
// BLOCKMAP:52af09 IIR4×2 bidir log-domain base 0x340510 len ctx+340500
// Proxy: two leaky stages from rt_mask_tables kIIR_A1/B1 A2/B2 (2049, B=1-A)
// BLOCKMAP:52af09 IIR4×2 bidir log-domain base 0x340510
// Uses DOUBLE precision (movsd/mulsd in disasm)
// Coefficients from FUN_180533340 generator (frequency-dependent warp)
// For now, use kIIR_A1/B1 as proxy (structure is correct)
extern const double kIIR_A1[]; extern const double kIIR_B1[];
extern const double kIIR_A2[]; extern const double kIIR_B2[];
// use global tables (not fn529fe0::)
const double* A1 = ::kIIR_A1; const double* B1 = ::kIIR_B1;
const double* A2 = ::kIIR_A2; const double* B2 = ::kIIR_B2;
double acc = 0.0;
@@ -257,7 +258,7 @@ static inline void fir_min_phase_52b3cd_internal(float* scr, size_t nbin) {
// per-frame band ACC_i vectors for step 10 (dc40).
void chain_9_19(float* bands, float* tmp6f8, float* accVec,
const float* warp, const float* att, const float* rel,
const float* track, const float* warp, const float* att, const float* rel,
size_t nbin) {
// Debug: check input
{
@@ -286,13 +287,15 @@ void chain_9_19(float* bands, float* tmp6f8, float* accVec,
for (size_t i = 0; i < nbin; i++) accVec[i] = tmp6f8[i];
// 14: EXP#1 180296c80 expf + +=(-1) th2270 (24mm2 order fix)
for (size_t i = 0; i < nbin; i++) bands[i] = expf_180296c80(bands[i]) - 1.0f;
// 15: array-mul track* th2000 (track not in struct; unity proxy)
// 15: array-mul track* th2000 (track per-band from ctx+0x540768)
if (track) for (size_t i = 0; i < nbin; i++) bands[i] *= track[i];
// 16: *=kWarp 52ae8f + LOG#2 140980 logf 52aefd (BLOCKMAP:638)
for (size_t i = 0; i < nbin; i++) bands[i] *= warp[i];
for (size_t i = 0; i < nbin; i++) bands[i] = std::log(std::max(bands[i], 1e-30f));
// 16b: IIR4×2 bidir log-domain base 0x340510 52af09 (BLOCKMAP:639)
// iir4_bidir_340510(bands, nbin); // DEBUG: skip IIR4
// fir_min_phase_52b3cd_internal(bands, nbin); // DEBUG: skip FIR
// 16b: IIR4×2 bidir log-domain base 0x340510 52af09 (BLOCKMAP:639) — DOUBLE precision
iir4_bidir_340510(bands, nbin);
// FIR min-phase (BLOCKMAP:52b3cd) — frequency-domain convolution
fir_min_phase_52b3cd_internal(bands, nbin);
// 17: EXP#2 + exp-variant 140a40/140b00
for (size_t i = 0; i < nbin; i++) bands[i] = expf_180296c80(bands[i]);
}