From eaebd0a90bb1e10546a3f115150d2fb957cf6326 Mon Sep 17 00:00:00 2001
From: dreamer <1185977+dromer@users.noreply.github.com>
Date: Thu, 19 Sep 2024 13:08:46 +0200
Subject: [PATCH] try disabling denormal numbers for plugins with input (#158)

* try disabling denormal numbers for plugins with input

* flag to disable scoped denormals
---
 CHANGELOG.md                                 | 1 +
 hvcc/generators/c2dpf/templates/HeavyDPF.cpp | 6 ++++++
 hvcc/generators/types/meta.py                | 1 +
 3 files changed, 8 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0449a36..4c33e08 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ Features:
 * Only disable DSP with new `--nodsp` flag
 * Use pydantic types to define metadata objects
 * DPF: CV flag in portgroups
+* DPF: flag to disable scoped denormals
 
 Bugfixes
 
diff --git a/hvcc/generators/c2dpf/templates/HeavyDPF.cpp b/hvcc/generators/c2dpf/templates/HeavyDPF.cpp
index a8130ec..0d73340 100644
--- a/hvcc/generators/c2dpf/templates/HeavyDPF.cpp
+++ b/hvcc/generators/c2dpf/templates/HeavyDPF.cpp
@@ -3,6 +3,9 @@
 #include "Heavy_{{name}}.h"
 #include "{{class_name}}.hpp"
 #include <set>
+{% if meta.denormals is sameas false %}
+#include "extra/ScopedDenormalDisable.hpp"
+{% endif %}
 
 
 #define HV_DPF_NUM_PARAMETER {{receivers|length + senders|length}}
@@ -203,6 +206,9 @@ void {{class_name}}::run(const float** inputs, float** outputs, uint32_t frames,
 void {{class_name}}::run(const float** inputs, float** outputs, uint32_t frames)
 {
 #endif
+{% if meta.denormals is sameas false %}
+  const ScopedDenormalDisable sdd;
+{% endif %}
   const TimePosition& timePos(getTimePosition());
   if (timePos.playing && timePos.bbt.valid)
     _context->sendMessageToReceiverV(HV_HASH_DPF_BPM, 0, "f", timePos.bbt.beatsPerMinute);
diff --git a/hvcc/generators/types/meta.py b/hvcc/generators/types/meta.py
index 38adbc6..f55e474 100644
--- a/hvcc/generators/types/meta.py
+++ b/hvcc/generators/types/meta.py
@@ -40,6 +40,7 @@ class DPF(BaseModel):
     midi_output:    bool = False
     port_groups:    Optional[DPFPortGroups] = None
     enumerators:    Optional[Dict[str, List[str]]] = None
+    denormals:      bool = True
     version:        Optional[str] = None
     license:        Optional[str] = None
     maker:          Optional[str] = None