Move the wavetables to a "WavetablePool"Matching the other resources management type

src/CMakeLists.txt

@@ -18,7 +18,6 @@ set (SFIZZ_SOURCES
     sfizz/SfzFilter.cpp
     sfizz/Curve.cpp
     sfizz/Wavetables.cpp
-    sfizz/Resources.cpp
     sfizz/Effects.cpp
     sfizz/effects/Nothing.cpp
     sfizz/effects/Filter.cpp

src/sfizz/Config.h

@@ -73,6 +73,12 @@ namespace config {
        Limit of how many "fxN" buses are accepted (in SFZv2, maximum is 4)
      */
     constexpr int maxEffectBuses { 256 };
+    // Wavetable constants; amplitude values are matched to reference
+    static constexpr unsigned tableSize = 1024;
+    static constexpr double amplitudeSine = 0.625;
+    static constexpr double amplitudeTriangle = 0.625;
+    static constexpr double amplitudeSaw = 0.515;
+    static constexpr double amplitudeSquare = 0.515;
 } // namespace config
 
 // Enable or disable SIMD accelerators by default

src/sfizz/Resources.cpp

@@ -1,58 +0,0 @@
-// SPDX-License-Identifier: BSD-2-Clause
-
-// This code is part of the sfizz library and is licensed under a BSD 2-clause
-// license. You should have receive a LICENSE.md file along with the code.
-// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
-
-#include "Resources.h"
-#include "Wavetables.h"
-
-namespace sfz
-{
-
-static constexpr unsigned kTableSize = 1024;
-
-// amplitude values are matched to reference
-static constexpr double kAmplitudeSine = 0.625;
-static constexpr double kAmplitudeTriangle = 0.625;
-static constexpr double kAmplitudeSaw = 0.515;
-static constexpr double kAmplitudeSquare = 0.515;
-
-static const WavetableMulti* getWaveSin()
-{
-    static auto wave = WavetableMulti::createForHarmonicProfile(
-        HarmonicProfile::getSine(), kAmplitudeSine, kTableSize);
-    return &wave;
-}
-
-static const WavetableMulti* getWaveTriangle()
-{
-    static auto wave = WavetableMulti::createForHarmonicProfile(
-        HarmonicProfile::getTriangle(), kAmplitudeTriangle, kTableSize);
-    return &wave;
-}
-
-static const WavetableMulti* getWaveSaw()
-{
-    static auto wave = WavetableMulti::createForHarmonicProfile(
-        HarmonicProfile::getSaw(), kAmplitudeSaw, kTableSize);
-    return &wave;
-}
-
-static const WavetableMulti* getWaveSquare()
-{
-    static auto wave = WavetableMulti::createForHarmonicProfile(
-        HarmonicProfile::getSquare(), kAmplitudeSquare, kTableSize);
-    return &wave;
-}
-
-Resources::Resources()
-    : waveSin(getWaveSin()),
-      waveTriangle(getWaveTriangle()),
-      waveSaw(getWaveSaw()),
-      waveSquare(getWaveSquare())
-{
-}
-
-
-}

src/sfizz/Resources.h

@@ -9,6 +9,7 @@
 #include "FilterPool.h"
 #include "EQPool.h"
 #include "Logger.h"
+#include "Wavetables.h"
 
 namespace sfz
 {
@@ -21,12 +22,6 @@ struct Resources
     FilePool filePool { logger };
     FilterPool filterPool { midiState };
     EQPool eqPool { midiState };
-
+    WavetablePool wavePool;
-    const WavetableMulti* waveSin { nullptr };
-    const WavetableMulti* waveTriangle { nullptr };
-    const WavetableMulti* waveSaw { nullptr };
-    const WavetableMulti* waveSquare { nullptr };
-
-    Resources();
 };
 }

src/sfizz/Voice.cpp

@@ -44,17 +44,17 @@ void sfz::Voice::startVoice(Region* region, int delay, int number, uint8_t value
         case hash("*silence"):
             break;
         case hash("*sine"):
-            wave = resources.waveSin;
+            wave = resources.wavePool.getWaveSin();
             break;
         case hash("*triangle"): // fallthrough
         case hash("*tri"):
-            wave = resources.waveTriangle;
+            wave = resources.wavePool.getWaveTriangle();
             break;
         case hash("*square"):
-            wave = resources.waveSquare;
+            wave = resources.wavePool.getWaveSquare();
             break;
         case hash("*saw"):
-            wave = resources.waveSaw;
+            wave = resources.wavePool.getWaveSaw();
             break;
         }
         waveOscillator.setWavetable(wave);

src/sfizz/Wavetables.cpp

@@ -273,4 +273,13 @@ void WavetableMulti::fillExtra()
     }
 }
 
+
+WavetablePool::WavetablePool()
+: waveSin(WavetableMulti::createForHarmonicProfile(HarmonicProfile::getSine(), config::amplitudeSine))
+, waveTriangle(WavetableMulti::createForHarmonicProfile(HarmonicProfile::getTriangle(), config::amplitudeTriangle))
+, waveSaw(WavetableMulti::createForHarmonicProfile(HarmonicProfile::getSaw(), config::amplitudeSaw))
+, waveSquare(WavetableMulti::createForHarmonicProfile(HarmonicProfile::getSquare(), config::amplitudeSquare))
+{ }
+
+
 } // namespace sfz

src/sfizz/Wavetables.h

@@ -5,6 +5,7 @@
 // If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
 
 #pragma once
+#include "Config.h"
 #include <absl/types/span.h>
 #include <memory>
 #include <complex>
@@ -146,7 +147,7 @@ public:
     // the reference sample rate is the minimum value accepted by the DSP
     // system (most defavorable wrt. aliasing)
     static WavetableMulti createForHarmonicProfile(
-        const HarmonicProfile& hp, double amplitude, unsigned tableSize, double refSampleRate = 44100.0);
+        const HarmonicProfile& hp, double amplitude, unsigned tableSize = config::tableSize, double refSampleRate = 44100.0);
 
     // create the tiniest wavetable with null content for use with oscillators
     static WavetableMulti createSilence();
@@ -174,4 +175,22 @@ private:
     std::unique_ptr<float[]> _multiData;
 };
 
+/**
+ * @brief Holds predefined wavetables.
+ *
+ */
+class WavetablePool {
+public:
+    WavetablePool();
+    const WavetableMulti* getWaveSin() const { return &waveSin; }
+    const WavetableMulti* getWaveTriangle() const { return &waveTriangle; }
+    const WavetableMulti* getWaveSaw() const { return &waveSaw; }
+    const WavetableMulti* getWaveSquare() const { return &waveSquare; };
+private:
+    const WavetableMulti waveSin;
+    const WavetableMulti waveTriangle;
+    const WavetableMulti waveSaw;
+    const WavetableMulti waveSquare;
+};
+
 } // namespace sfz