Add an in-progress extension string for convolution reverb

alc/alc.cpp

@@ -807,6 +807,8 @@ constexpr struct {
     DECL(AL_BUFFER_CALLBACK_USER_PARAM_SOFT),
 
     DECL(AL_UNPACK_AMBISONIC_ORDER_SOFT),
+
+    DECL(AL_EFFECT_CONVOLUTION_REVERB_SOFT),
 };
 #undef DECL
 
@@ -854,6 +856,7 @@ constexpr ALchar alExtList[] =
     "AL_SOFTX_bformat_hoa "
     "AL_SOFT_block_alignment "
     "AL_SOFTX_callback_buffer "
+    "AL_SOFTX_convolution_reverb "
     "AL_SOFT_deferred_updates "
     "AL_SOFT_direct_channels "
     "AL_SOFT_direct_channels_remix "

examples/alconvolve.c

@@ -377,10 +377,10 @@ int main(int argc, char **argv)
     if(InitAL(&argv, &argc) != 0)
         return 1;
 
-    if(!alcIsExtensionPresent(alcGetContextsDevice(alcGetCurrentContext()), "ALC_EXT_EFX"))
+    if(!alIsExtensionPresent("AL_SOFTX_convolution_reverb"))
     {
         CloseAL();
-        fprintf(stderr, "Error: EFX not supported\n");
+        fprintf(stderr, "Error: Convolution revern not supported\n");
         return 1;
     }