Use a temporary buffer for HRTF filter accumulation

Similar to the history buffer, to avoid using the state buffer as a ring
buffer.

1 files changed, 2 insertions, 0 deletions

diff --git a/Alc/hrtf.h b/Alc/hrtf.h
index b3063dd9..fae3be0c 100644
--- a/Alc/hrtf.h
+++ b/Alc/hrtf.h
@@ -60,6 +60,8 @@ struct EnumeratedHrtf {
 };
 
 
+using float2 = std::array<float,2>;
+
 template<typename T>
 using HrirArray = std::array<std::array<T,2>,HRIR_LENGTH>;