1 files changed, 110 insertions, 0 deletions
diff --git a/al/effects/modulator.cpp b/al/effects/modulator.cpp
new file mode 100644
index 00000000..95f379e2
--- /dev/null
+++ b/al/effects/modulator.cpp
@@ -0,0 +1,110 @@
+
+#include "config.h"
+
+#include "AL/al.h"
+#include "AL/efx.h"
+
+#include "effects.h"
+#include "effects/base.h"
+
+
+namespace {
+
+void Modulator_setParamf(EffectProps *props, ALenum param, float val)
+{
+    switch(param)
+    {
+    case AL_RING_MODULATOR_FREQUENCY:
+        if(!(val >= AL_RING_MODULATOR_MIN_FREQUENCY && val <= AL_RING_MODULATOR_MAX_FREQUENCY))
+            throw effect_exception{AL_INVALID_VALUE, "Modulator frequency out of range"};
+        props->Modulator.Frequency = val;
+        break;
+
+    case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
+        if(!(val >= AL_RING_MODULATOR_MIN_HIGHPASS_CUTOFF && val <= AL_RING_MODULATOR_MAX_HIGHPASS_CUTOFF))
+            throw effect_exception{AL_INVALID_VALUE, "Modulator high-pass cutoff out of range"};
+        props->Modulator.HighPassCutoff = val;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
+    }
+}
+void Modulator_setParamfv(EffectProps *props, ALenum param, const float *vals)
+{ Modulator_setParamf(props, param, vals[0]); }
+void Modulator_setParami(EffectProps *props, ALenum param, int val)
+{
+    switch(param)
+    {
+    case AL_RING_MODULATOR_FREQUENCY:
+    case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
+        Modulator_setParamf(props, param, static_cast<float>(val));
+        break;
+
+    case AL_RING_MODULATOR_WAVEFORM:
+        if(!(val >= AL_RING_MODULATOR_MIN_WAVEFORM && val <= AL_RING_MODULATOR_MAX_WAVEFORM))
+            throw effect_exception{AL_INVALID_VALUE, "Invalid modulator waveform"};
+        props->Modulator.Waveform = val;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x",
+            param};
+    }
+}
+void Modulator_setParamiv(EffectProps *props, ALenum param, const int *vals)
+{ Modulator_setParami(props, param, vals[0]); }
+
+void Modulator_getParami(const EffectProps *props, ALenum param, int *val)
+{
+    switch(param)
+    {
+    case AL_RING_MODULATOR_FREQUENCY:
+        *val = static_cast<int>(props->Modulator.Frequency);
+        break;
+    case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
+        *val = static_cast<int>(props->Modulator.HighPassCutoff);
+        break;
+    case AL_RING_MODULATOR_WAVEFORM:
+        *val = props->Modulator.Waveform;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x",
+            param};
+    }
+}
+void Modulator_getParamiv(const EffectProps *props, ALenum param, int *vals)
+{ Modulator_getParami(props, param, vals); }
+void Modulator_getParamf(const EffectProps *props, ALenum param, float *val)
+{
+    switch(param)
+    {
+    case AL_RING_MODULATOR_FREQUENCY:
+        *val = props->Modulator.Frequency;
+        break;
+    case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
+        *val = props->Modulator.HighPassCutoff;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
+    }
+}
+void Modulator_getParamfv(const EffectProps *props, ALenum param, float *vals)
+{ Modulator_getParamf(props, param, vals); }
+
+EffectProps genDefaultProps() noexcept
+{
+    EffectProps props{};
+    props.Modulator.Frequency      = AL_RING_MODULATOR_DEFAULT_FREQUENCY;
+    props.Modulator.HighPassCutoff = AL_RING_MODULATOR_DEFAULT_HIGHPASS_CUTOFF;
+    props.Modulator.Waveform       = AL_RING_MODULATOR_DEFAULT_WAVEFORM;
+    return props;
+}
+
+} // namespace
+
+DEFINE_ALEFFECT_VTABLE(Modulator);
+
+const EffectProps ModulatorEffectProps{genDefaultProps()};