1 files changed, 109 insertions, 0 deletions
diff --git a/al/effects/autowah.cpp b/al/effects/autowah.cpp
new file mode 100644
index 00000000..65d4b702
--- /dev/null
+++ b/al/effects/autowah.cpp
@@ -0,0 +1,109 @@
+
+#include "config.h"
+
+#include <cmath>
+#include <cstdlib>
+
+#include <algorithm>
+
+#include "AL/efx.h"
+
+#include "effects/base.h"
+#include "effects.h"
+
+namespace {
+
+void Autowah_setParamf(EffectProps *props, ALenum param, float val)
+{
+    switch(param)
+    {
+    case AL_AUTOWAH_ATTACK_TIME:
+        if(!(val >= AL_AUTOWAH_MIN_ATTACK_TIME && val <= AL_AUTOWAH_MAX_ATTACK_TIME))
+            throw effect_exception{AL_INVALID_VALUE, "Autowah attack time out of range"};
+        props->Autowah.AttackTime = val;
+        break;
+
+    case AL_AUTOWAH_RELEASE_TIME:
+        if(!(val >= AL_AUTOWAH_MIN_RELEASE_TIME && val <= AL_AUTOWAH_MAX_RELEASE_TIME))
+            throw effect_exception{AL_INVALID_VALUE, "Autowah release time out of range"};
+        props->Autowah.ReleaseTime = val;
+        break;
+
+    case AL_AUTOWAH_RESONANCE:
+        if(!(val >= AL_AUTOWAH_MIN_RESONANCE && val <= AL_AUTOWAH_MAX_RESONANCE))
+            throw effect_exception{AL_INVALID_VALUE, "Autowah resonance out of range"};
+        props->Autowah.Resonance = val;
+        break;
+
+    case AL_AUTOWAH_PEAK_GAIN:
+        if(!(val >= AL_AUTOWAH_MIN_PEAK_GAIN && val <= AL_AUTOWAH_MAX_PEAK_GAIN))
+            throw effect_exception{AL_INVALID_VALUE, "Autowah peak gain out of range"};
+        props->Autowah.PeakGain = val;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid autowah float property 0x%04x", param};
+    }
+}
+void Autowah_setParamfv(EffectProps *props,  ALenum param, const float *vals)
+{ Autowah_setParamf(props, param, vals[0]); }
+
+void Autowah_setParami(EffectProps*, ALenum param, int)
+{ throw effect_exception{AL_INVALID_ENUM, "Invalid autowah integer property 0x%04x", param}; }
+void Autowah_setParamiv(EffectProps*, ALenum param, const int*)
+{
+    throw effect_exception{AL_INVALID_ENUM, "Invalid autowah integer vector property 0x%04x",
+        param};
+}
+
+void Autowah_getParamf(const EffectProps *props, ALenum param, float *val)
+{
+    switch(param)
+    {
+    case AL_AUTOWAH_ATTACK_TIME:
+        *val = props->Autowah.AttackTime;
+        break;
+
+    case AL_AUTOWAH_RELEASE_TIME:
+        *val = props->Autowah.ReleaseTime;
+        break;
+
+    case AL_AUTOWAH_RESONANCE:
+        *val = props->Autowah.Resonance;
+        break;
+
+    case AL_AUTOWAH_PEAK_GAIN:
+        *val = props->Autowah.PeakGain;
+        break;
+
+    default:
+        throw effect_exception{AL_INVALID_ENUM, "Invalid autowah float property 0x%04x", param};
+    }
+
+}
+void Autowah_getParamfv(const EffectProps *props, ALenum param, float *vals)
+{ Autowah_getParamf(props, param, vals); }
+
+void Autowah_getParami(const EffectProps*, ALenum param, int*)
+{ throw effect_exception{AL_INVALID_ENUM, "Invalid autowah integer property 0x%04x", param}; }
+void Autowah_getParamiv(const EffectProps*, ALenum param, int*)
+{
+    throw effect_exception{AL_INVALID_ENUM, "Invalid autowah integer vector property 0x%04x",
+        param};
+}
+
+EffectProps genDefaultProps() noexcept
+{
+    EffectProps props{};
+    props.Autowah.AttackTime = AL_AUTOWAH_DEFAULT_ATTACK_TIME;
+    props.Autowah.ReleaseTime = AL_AUTOWAH_DEFAULT_RELEASE_TIME;
+    props.Autowah.Resonance = AL_AUTOWAH_DEFAULT_RESONANCE;
+    props.Autowah.PeakGain = AL_AUTOWAH_DEFAULT_PEAK_GAIN;
+    return props;
+}
+
+} // namespace
+
+DEFINE_ALEFFECT_VTABLE(Autowah);
+
+const EffectProps AutowahEffectProps{genDefaultProps()};