Use doubles for the constructed listener matrix

This helps the stability of transforms to local space for sources that are at
or near the listener. With a single-precision matrix, even FLT_EPSILON might
not be enough to detect matching positions.

1 files changed, 5 insertions, 5 deletions

diff --git a/Alc/ALc.c b/Alc/ALc.c
index 20aa4be0..d6d23eba 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -2315,11 +2315,11 @@ static ALvoid InitContext(ALCcontext *Context)
     listener->Up[0] = 0.0f;
     listener->Up[1] = 1.0f;
     listener->Up[2] = 0.0f;
-    aluMatrixSet(&listener->Params.Matrix,
-        1.0f, 0.0f, 0.0f, 0.0f,
-        0.0f, 1.0f, 0.0f, 0.0f,
-        0.0f, 0.0f, 1.0f, 0.0f,
-        0.0f, 0.0f, 0.0f, 1.0f
+    aluMatrixdSet(&listener->Params.Matrix,
+        1.0, 0.0, 0.0, 0.0,
+        0.0, 1.0, 0.0, 0.0,
+        0.0, 0.0, 1.0, 0.0,
+        0.0, 0.0, 0.0, 1.0
     );
     aluVectorSet(&listener->Params.Velocity, 0.0f, 0.0f, 0.0f, 0.0f);