1 files changed, 114 insertions, 0 deletions
diff --git a/al/effects/distortion.cpp b/al/effects/distortion.cpp
new file mode 100644
index 00000000..8961a4d9
--- /dev/null
+++ b/al/effects/distortion.cpp
@@ -0,0 +1,114 @@
+
+#include "config.h"
+
+#include "AL/al.h"
+#include "AL/efx.h"
+
+#include "effects.h"
+#include "effects/base.h"
+
+
+namespace {
+
+void Distortion_setParami(EffectProps*, ALenum param, int)
+{ throw effect_exception{AL_INVALID_ENUM, "Invalid distortion integer property 0x%04x", param}; }
+void Distortion_setParamiv(EffectProps*, ALenum param, const int*)
+{
+    throw effect_exception{AL_INVALID_ENUM, "Invalid distortion integer-vector property 0x%04x",
+        param};
+}
+void Distortion_setParamf(EffectProps *props, ALenum param, float val)
+{
+    switch(param)
+    {
+    case AL_DISTORTION_EDGE:
+        if(!(val >= AL_DISTORTION_MIN_EDGE && val <= AL_DISTORTION_MAX_EDGE))
+            throw effect_exception{AL_INVALID_VALUE, "Distortion edge out of range"};
+        props->Distortion.Edge = val;
+        break;
+
+    case AL_DISTORTION_GAIN:
+        if(!(val >= AL_DISTORTION_MIN_GAIN && val <= AL_DISTORTION_MAX_GAIN))
+            throw effect_exception{AL_INVALID_VALUE, "Distortion gain out of range"};
+        props->Distortion.Gain = val;
+        break;
+
+    case AL_DISTORTION_LOWPASS_CUTOFF:
+        if(!(val >= AL_DISTORTION_MIN_LOWPASS_CUTOFF && val <= AL_DISTORTION_MAX_LOWPASS_CUTOFF))
+            throw effect_exception{AL_INVALID_VALUE, "Distortion low-pass cutoff out of range"};
+        props->Distortion.LowpassCutoff = val;
+        break;
+
+    case AL_DISTORTION_EQCENTER:
+        if(!(val >= AL_DISTORTION_MIN_EQCENTER && val <= AL_DISTORTION_MAX_EQCENTER))
+            throw effect_exception{AL_INVALID_VALUE, "Distortion EQ center out of range"};
+        props->Distortion.EQCenter = val;
+        break;
+
+    case AL_DISTORTION_EQBANDWIDTH:
+        if(!(val >= AL_DISTORTION_MIN_EQBANDWIDTH && val <= AL_DISTORTION_MAX_EQBANDWIDTH))
+            throw effect_exception{AL_INVALID_VALUE, "Distortion EQ bandwidth out of range"};
+        props->Distortion.EQBandwidth = val;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid distortion float property 0x%04x", param};
+    }
+}
+void Distortion_setParamfv(EffectProps *props, ALenum param, const float *vals)
+{ Distortion_setParamf(props, param, vals[0]); }
+
+void Distortion_getParami(const EffectProps*, ALenum param, int*)
+{ throw effect_exception{AL_INVALID_ENUM, "Invalid distortion integer property 0x%04x", param}; }
+void Distortion_getParamiv(const EffectProps*, ALenum param, int*)
+{
+    throw effect_exception{AL_INVALID_ENUM, "Invalid distortion integer-vector property 0x%04x",
+        param};
+}
+void Distortion_getParamf(const EffectProps *props, ALenum param, float *val)
+{
+    switch(param)
+    {
+    case AL_DISTORTION_EDGE:
+        *val = props->Distortion.Edge;
+        break;
+
+    case AL_DISTORTION_GAIN:
+        *val = props->Distortion.Gain;
+        break;
+
+    case AL_DISTORTION_LOWPASS_CUTOFF:
+        *val = props->Distortion.LowpassCutoff;
+        break;
+
+    case AL_DISTORTION_EQCENTER:
+        *val = props->Distortion.EQCenter;
+        break;
+
+    case AL_DISTORTION_EQBANDWIDTH:
+        *val = props->Distortion.EQBandwidth;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid distortion float property 0x%04x", param};
+    }
+}
+void Distortion_getParamfv(const EffectProps *props, ALenum param, float *vals)
+{ Distortion_getParamf(props, param, vals); }
+
+EffectProps genDefaultProps() noexcept
+{
+    EffectProps props{};
+    props.Distortion.Edge = AL_DISTORTION_DEFAULT_EDGE;
+    props.Distortion.Gain = AL_DISTORTION_DEFAULT_GAIN;
+    props.Distortion.LowpassCutoff = AL_DISTORTION_DEFAULT_LOWPASS_CUTOFF;
+    props.Distortion.EQCenter = AL_DISTORTION_DEFAULT_EQCENTER;
+    props.Distortion.EQBandwidth = AL_DISTORTION_DEFAULT_EQBANDWIDTH;
+    return props;
+}
+
+} // namespace
+
+DEFINE_ALEFFECT_VTABLE(Distortion);
+
+const EffectProps DistortionEffectProps{genDefaultProps()};