Make all phase opcodes normalized

src/sfizz/Defaults.h

@@ -65,7 +65,7 @@ namespace Default
 
     // Wavetable oscillator
     constexpr float oscillatorPhase { 0.0 };
-    constexpr Range<float> oscillatorPhaseRange { -1.0, 360.0 };
+    constexpr Range<float> oscillatorPhaseRange { -1.0, 1.0 };
     constexpr int oscillatorMode { 0 };
     constexpr int oscillatorMulti { 1 };
     constexpr Range<int> oscillatorModeRange { 0, 2 };
@@ -222,7 +222,7 @@ namespace Default
     constexpr int numLFOSubs { 2 };
     constexpr int numLFOSteps { 8 };
     constexpr Range<float> lfoFreqRange { 0.0, 100.0 };
-    constexpr Range<float> lfoPhaseRange { 0.0, 360.0 };
+    constexpr Range<float> lfoPhaseRange { 0.0, 1.0 };
     constexpr Range<float> lfoDelayRange { 0.0, 30.0 };
     constexpr Range<float> lfoFadeRange { 0.0, 30.0 };
     constexpr Range<unsigned> lfoCountRange { 0, 1000 };
@@ -281,7 +281,7 @@ namespace Default
 
     constexpr Range<int> apanWaveformRange { 0, std::numeric_limits<int>::max() };
     constexpr Range<float> apanFrequencyRange { 0, std::numeric_limits<float>::max() };
-    constexpr Range<float> apanPhaseRange { 0.0, 360.0 };
+    constexpr Range<float> apanPhaseRange { 0.0, 1.0 };
     constexpr Range<float> apanLevelRange { 0.0, 100.0 };
 }
 }

src/sfizz/MathHelpers.h

@@ -288,6 +288,17 @@ constexpr long int lroundPositive(T value)
     return static_cast<int>(0.5f + value); // NOLINT
 }
 
+/**
+   @brief Wrap a normalized phase into the domain [0;1[
+ */
+template <class T>
+static T wrapPhase(T phase)
+{
+    T wrapped = phase - static_cast<int>(phase);
+    wrapped += wrapped < 0;
+    return wrapped;
+}
+
 /**
    @brief A fraction which is parameterized by integer type
  */

src/sfizz/Region.cpp

@@ -144,7 +144,8 @@ bool sfz::Region::parseOpcode(const Opcode& rawOpcode)
 
     // Wavetable oscillator
     case hash("oscillator_phase"):
-        setValueFromOpcode(opcode, oscillatorPhase, Default::oscillatorPhaseRange);
+        if (auto value = readOpcode(opcode.value, Default::oscillatorPhaseRange))
+            oscillatorPhase = (*value >= 0) ? wrapPhase(*value) : -1.0f;
         break;
     case hash("oscillator"):
         if (auto value = readBooleanFromOpcode(opcode))
@@ -851,12 +852,8 @@ bool sfz::Region::parseOpcode(const Opcode& rawOpcode)
                 return false;
             if (!extendIfNecessary(lfos, lfoNumber, Default::numLFOs))
                 return false;
-            if (auto value = readOpcode(opcode.value, Default::lfoPhaseRange)) {
-                float normalPhase = *value * (1.0 / 360.0);
-                normalPhase -= int(normalPhase);
-                normalPhase += (normalPhase < 0) ? 1 : 0;
-                lfos[lfoNumber - 1].phase0 = normalPhase;
-            }
+            if (auto value = readOpcode(opcode.value, Default::lfoPhaseRange))
+                lfos[lfoNumber - 1].phase0 = wrapPhase(*value);
         }
         break;
     case hash("lfo&_delay"):
@@ -1762,10 +1759,9 @@ float sfz::Region::getBaseGain() const noexcept
 float sfz::Region::getPhase() const noexcept
 {
     float phase;
-    if (oscillatorPhase >= 0) {
-        phase = oscillatorPhase * (1.0f / 360.0f);
-        phase -= static_cast<float>(static_cast<int>(phase));
-    } else {
+    if (oscillatorPhase >= 0)
+        phase = oscillatorPhase;
+    else {
         fast_real_distribution<float> phaseDist { 0.0001f, 0.9999f };
         phase = phaseDist(Random::randomGenerator);
     }

src/sfizz/effects/Apan.cpp

@@ -89,11 +89,8 @@ namespace fx {
                     apan->_lfoFrequency = *value;
                 break;
             case hash("apan_phase"):
-                if (auto value = readOpcode(opc.value, Default::apanPhaseRange)) {
-                    float phase = *value / 360.0f;
-                    phase -= static_cast<int>(phase);
-                    apan->_lfoPhaseOffset = phase;
-                }
+                if (auto value = readOpcode(opc.value, Default::apanPhaseRange))
+                    apan->_lfoPhaseOffset = wrapPhase(*value);
                 break;
             case hash("apan_dry"):
                 if (auto value = readOpcode(opc.value, Default::apanLevelRange))

tests/RegionT.cpp

@@ -1595,14 +1595,14 @@ TEST_CASE("[Region] Parsing opcodes")
     SECTION("Wavetable phase")
     {
         REQUIRE(region.oscillatorPhase == 0.0f);
-        region.parseOpcode({ "oscillator_phase", "45" });
-        REQUIRE(region.oscillatorPhase == 45.0f);
-        region.parseOpcode({ "oscillator_phase", "45.32" });
-        REQUIRE(region.oscillatorPhase == 45.32_a);
+        region.parseOpcode({ "oscillator_phase", "0.25" });
+        REQUIRE(region.oscillatorPhase == 0.25f);
+        region.parseOpcode({ "oscillator_phase", "0.3" });
+        REQUIRE(region.oscillatorPhase == 0.3_a);
         region.parseOpcode({ "oscillator_phase", "-1" });
         REQUIRE(region.oscillatorPhase == -1.0f);
-        region.parseOpcode({ "oscillator_phase", "361" });
-        REQUIRE(region.oscillatorPhase == 360.0f);
+        region.parseOpcode({ "oscillator_phase", "1.1" });
+        REQUIRE(region.oscillatorPhase == 0.0f);
     }
 
     SECTION("Note polyphony")

tests/lfo/lfo_subwave.sfz

@@ -7,23 +7,23 @@ fil_type=brf_2p
 lfo1_cutoff=1200.0
 //
 lfo1_freq=1
-lfo1_phase=180
+lfo1_phase=0.5
 lfo1_wave=3
 //
 lfo2_freq=1
-lfo2_phase=180
+lfo2_phase=0.5
 lfo2_wave=3
 lfo2_wave2=1
 //
 lfo3_freq=1
-lfo3_phase=180
+lfo3_phase=0.5
 lfo3_wave=3
 lfo3_wave2=1
 lfo3_ratio2=2
 
 //
 lfo4_freq=1
-lfo4_phase=180
+lfo4_phase=0.5
 lfo4_wave=3
 lfo4_wave2=1
 lfo4_ratio2=2

tests/lfo/lfo_waves.sfz

@@ -18,6 +18,6 @@ lfo6_wave=5
 lfo6_freq=2.0
 lfo7_wave=6
 lfo7_freq=1.0
-lfo7_phase=180
+lfo7_phase=0.5
 lfo8_wave=7
 lfo8_freq=2.0