From a1d7800034152e4e0df41854b3bbaea449469cfe Mon Sep 17 00:00:00 2001
From: falkTX <falktx@falktx.com>
Date: Mon, 22 Jan 2024 15:30:49 +0100
Subject: [PATCH] import v1.1 changes from lv2 repo (LPF and dc blocker
 optional)

Signed-off-by: falkTX <falktx@falktx.com>
---
 src/DistrhoPluginCommon.hpp |  8 +++++---
 src/aidadsp-plugin.cpp      | 29 +++++++++++++++++++++++++----
 src/aidadsp-ui.cpp          |  1 +
 3 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/src/DistrhoPluginCommon.hpp b/src/DistrhoPluginCommon.hpp
index a421e61..38d9961 100644
--- a/src/DistrhoPluginCommon.hpp
+++ b/src/DistrhoPluginCommon.hpp
@@ -1,7 +1,7 @@
 /*
  * AIDA-X DPF plugin
  * Copyright (C) 2022-2023 Massimo Pennazio <maxipenna@libero.it>
- * Copyright (C) 2023 Filipe Coelho <falktx@falktx.com>
+ * Copyright (C) 2023-2024 Filipe Coelho <falktx@falktx.com>
  * SPDX-License-Identifier: GPL-3.0-or-later
  */
 
@@ -9,8 +9,8 @@
 
 #include "DistrhoDetails.hpp"
 
-static constexpr const char* const kVersionString = "v1.0.0";
-static constexpr const uint32_t kVersionNumber = d_version(1, 0, 0);
+static constexpr const char* const kVersionString = "v1.1.0";
+static constexpr const uint32_t kVersionNumber = d_version(1, 1, 0);
 
 #define DISTRHO_PLUGIN_BRAND   "AIDA DSP"
 #define DISTRHO_PLUGIN_NAME    "AIDA-X"
@@ -80,6 +80,7 @@ enum Parameters {
     kParameterGLOBALBYPASS,
     kParameterPARAM1,
     kParameterPARAM2,
+    kParameterDCBLOCKER,
     kParameterModelInputSize,
     kParameterMeterIn,
     kParameterMeterOut,
@@ -148,6 +149,7 @@ static const Parameter kParameters[] = {
     { kParameterIsAutomatable|kParameterIsBoolean|kParameterIsInteger, "Bypass", "dpf_bypass", "", 0.f, 0.f, 1.f, ARRAY_SIZE(kBYPASS), kBYPASS },
     { kParameterIsAutomatable, "PARAM1", "PARAM1", "", 0.f, 0.f, 1.f, },
     { kParameterIsAutomatable, "PARAM2", "PARAM2", "", 0.f, 0.f, 1.f, },
+    { kParameterIsAutomatable|kParameterIsBoolean|kParameterIsInteger, "DCBLOCKER", "DCBLOCKER", "", 1.f, 0.f, 1.f, },
     { kParameterIsOutput, "Model Input Size", "ModelInSize", "", 0.f, 0.f, 3.f, ARRAY_SIZE(kModelInSize), kModelInSize },
     { kParameterIsOutput, "Meter In", "MeterIn", "dB", 0.f, 0.f, 2.f, },
     { kParameterIsOutput, "Meter Out", "MeterOut", "dB", 0.f, 0.f, 2.f, },
diff --git a/src/aidadsp-plugin.cpp b/src/aidadsp-plugin.cpp
index c6aa1b4..8df31be 100644
--- a/src/aidadsp-plugin.cpp
+++ b/src/aidadsp-plugin.cpp
@@ -288,7 +288,9 @@ class AidaDSPLoaderPlugin : public Plugin
     float parameters[kNumParameters];
     LinearValueSmoother param1;
     LinearValueSmoother param2;
-    bool paramFirstRun;
+    bool enabledLPF = true;
+    bool enabledDC = true;
+    bool paramFirstRun = true;
     std::atomic<bool> resetMeters { true };
     float tmpMeterIn, tmpMeterOut;
     uint32_t tmpMeterFrames, meterMaxFrameCount;
@@ -423,8 +425,18 @@ class AidaDSPLoaderPlugin : public Plugin
     {
         parameter = kParameters[index];
 
-        if (index == kParameterGLOBALBYPASS)
+        switch (index)
         {
+        case kParameterINLPF:
+            {
+                static ParameterEnumerationValue values[1] = {
+                    { 0.f, "Off" }
+                };
+                parameter.enumValues.values = values;
+                parameter.enumValues.deleteLater = false;
+            }
+            break;
+        case kParameterGLOBALBYPASS:
             parameter.designation = kParameterDesignationBypass;
             {
                 static ParameterEnumerationValue values[2] = {
@@ -434,6 +446,7 @@ class AidaDSPLoaderPlugin : public Plugin
                 parameter.enumValues.values = values;
                 parameter.enumValues.deleteLater = false;
             }
+            break;
         }
     }
 
@@ -506,6 +519,7 @@ class AidaDSPLoaderPlugin : public Plugin
         {
         case kParameterINLPF:
             aida.in_lpf.setFc(MAP(value, 0.0f, 100.0f, INLPF_MAX_CO, INLPF_MIN_CO));
+            enabledLPF = d_isNotZero(value);
             break;
         case kParameterINLEVEL:
             aida.inlevel.setTargetValue(DB_CO(value));
@@ -564,6 +578,9 @@ class AidaDSPLoaderPlugin : public Plugin
         case kParameterPARAM2:
             param2.setTargetValue(value);
             break;
+        case kParameterDCBLOCKER:
+            enabledDC = value > 0.5f;
+            break;
         case kParameterModelInputSize:
         case kParameterMeterIn:
         case kParameterMeterOut:
@@ -992,7 +1009,10 @@ class AidaDSPLoaderPlugin : public Plugin
        #endif
 
         // High frequencies roll-off (lowpass)
-        applyBiquadFilter(aida.in_lpf, out, bypassInplaceBuffer, numSamples);
+        if (enabledLPF)
+            applyBiquadFilter(aida.in_lpf, out, bypassInplaceBuffer, numSamples);
+        else
+            std::memcpy(out, bypassInplaceBuffer, sizeof(float)*numSamples);
 
         // Pre-gain
         applyGainRamp(aida.inlevel, out, numSamples);
@@ -1017,7 +1037,8 @@ class AidaDSPLoaderPlugin : public Plugin
         }
 
         // DC blocker filter (highpass)
-        applyBiquadFilter(aida.dc_blocker, out, numSamples);
+        if (enabledDC)
+            applyBiquadFilter(aida.dc_blocker, out, numSamples);
 
         // Cabinet convolution
         if (cabsim != nullptr)
diff --git a/src/aidadsp-ui.cpp b/src/aidadsp-ui.cpp
index f660358..068c86b 100644
--- a/src/aidadsp-ui.cpp
+++ b/src/aidadsp-ui.cpp
@@ -324,6 +324,7 @@ class AidaDSPLoaderUI : public UI,
         case kParameterTREBLEFREQ:
         case kParameterPARAM1:
         case kParameterPARAM2:
+        case kParameterDCBLOCKER:
         case kParameterCount:
             break;
         }