Add a global option to apply a reverb effect on source send 0

A special slot on the device is created and processed, so it can be shared
across all contexts on the device. Sources that don't have a slot set on send 0
will use this special slot instead.

5 files changed, 12 insertions, 2 deletions

diff --git a/OpenAL32/Include/alAuxEffectSlot.h b/OpenAL32/Include/alAuxEffectSlot.h
index cdff330f..1646031c 100644
--- a/OpenAL32/Include/alAuxEffectSlot.h
+++ b/OpenAL32/Include/alAuxEffectSlot.h
@@ -35,6 +35,7 @@ typedef struct ALeffectslot
 } ALeffectslot;
 
 
+ALvoid InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect);
 ALvoid ReleaseALAuxiliaryEffectSlots(ALCcontext *Context);
 
 
diff --git a/OpenAL32/Include/alEffect.h b/OpenAL32/Include/alEffect.h
index 566458c6..264ada0d 100644
--- a/OpenAL32/Include/alEffect.h
+++ b/OpenAL32/Include/alEffect.h
@@ -102,6 +102,7 @@ typedef struct ALeffect
 static __inline ALboolean IsReverbEffect(ALenum type)
 { return type == AL_EFFECT_REVERB || type == AL_EFFECT_EAXREVERB; }
 
+ALvoid GetReverbEffect(ALeffect *effect);
 ALvoid ReleaseALEffects(ALCdevice *device);
 
 #ifdef __cplusplus
diff --git a/OpenAL32/Include/alMain.h b/OpenAL32/Include/alMain.h
index c0ffbe5a..fa88a4e4 100644
--- a/OpenAL32/Include/alMain.h
+++ b/OpenAL32/Include/alMain.h
@@ -598,6 +598,9 @@ struct ALCdevice_struct
     ALfloat ClickRemoval[MAXCHANNELS];
     ALfloat PendingClicks[MAXCHANNELS];
 
+    /* Default effect slot */
+    struct ALeffectslot *DefaultSlot;
+
     // Contexts created on this device
     ALCcontext *volatile ContextList;
 
diff --git a/OpenAL32/alAuxEffectSlot.c b/OpenAL32/alAuxEffectSlot.c
index 03a6218b..6c4a31f2 100644
--- a/OpenAL32/alAuxEffectSlot.c
+++ b/OpenAL32/alAuxEffectSlot.c
@@ -32,7 +32,6 @@
 #include "alSource.h"
 
 
-static ALvoid InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect);
 static ALenum ResizeEffectSlotArray(ALCcontext *Context, ALsizei count);
 static ALvoid RemoveEffectSlotArray(ALCcontext *Context, ALeffectslot *val);
 
@@ -512,7 +511,7 @@ static ALenum ResizeEffectSlotArray(ALCcontext *Context, ALsizei count)
     return AL_NO_ERROR;
 }
 
-static ALvoid InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect)
+ALvoid InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect)
 {
     ALenum newtype = (effect ? effect->type : AL_EFFECT_NULL);
     ALeffectState *State = NULL;
diff --git a/OpenAL32/alEffect.c b/OpenAL32/alEffect.c
index 11212009..d7f7c3c1 100644
--- a/OpenAL32/alEffect.c
+++ b/OpenAL32/alEffect.c
@@ -1306,3 +1306,9 @@ static void InitEffectParams(ALeffect *effect, ALenum type)
     }
     effect->type = type;
 }
+
+
+ALvoid GetReverbEffect(ALeffect *effect)
+{
+    InitEffectParams(effect, AL_EFFECT_EAXREVERB);
+}