From 0ff9be6aec23cb8134de64382b16e361516d808c Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca>
Date: Wed, 25 Aug 2010 22:20:35 -0400
Subject: [PATCH] Fixed an old issue where the fixed-point MDCT twiddles were
 stored as 32-bit values

---
 libcelt/kiss_fft.h | 2 +-
 libcelt/mdct.c     | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/libcelt/kiss_fft.h b/libcelt/kiss_fft.h
index a713c4cd..84de1214 100644
--- a/libcelt/kiss_fft.h
+++ b/libcelt/kiss_fft.h
@@ -55,7 +55,7 @@ extern "C" {
 
 #ifdef DOUBLE_PRECISION
 #  define kiss_fft_scalar celt_int32
-#  define kiss_twiddle_scalar celt_int32
+#  define kiss_twiddle_scalar celt_int16
 #  define KF_SUFFIX _celt_double
 #else
 #  define kiss_fft_scalar celt_int16
diff --git a/libcelt/mdct.c b/libcelt/mdct.c
index 06c54f27..a10a50b3 100644
--- a/libcelt/mdct.c
+++ b/libcelt/mdct.c
@@ -162,7 +162,7 @@ void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar
    /* Pre-rotation */
    {
       kiss_fft_scalar * restrict yp = out;
-      const kiss_fft_scalar *t = &l->trig[0];
+      const kiss_twiddle_scalar *t = &l->trig[0];
       for(i=0;i<N4;i++)
       {
          kiss_fft_scalar re, im, yr, yi;
@@ -185,7 +185,7 @@ void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar
       const kiss_fft_scalar * restrict fp = f;
       kiss_fft_scalar * restrict yp1 = out;
       kiss_fft_scalar * restrict yp2 = out+N2-1;
-      const kiss_fft_scalar *t = &l->trig[0];
+      const kiss_twiddle_scalar *t = &l->trig[0];
       /* Temp pointers to make it really clear to the compiler what we're doing */
       for(i=0;i<N4;i++)
       {
@@ -231,7 +231,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala
       const kiss_fft_scalar * restrict xp1 = in;
       const kiss_fft_scalar * restrict xp2 = in+N2-1;
       kiss_fft_scalar * restrict yp = f2;
-      const kiss_fft_scalar *t = &l->trig[0];
+      const kiss_twiddle_scalar *t = &l->trig[0];
       for(i=0;i<N4;i++) 
       {
          kiss_fft_scalar yr, yi;
@@ -251,7 +251,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala
    /* Post-rotate */
    {
       kiss_fft_scalar * restrict fp = f;
-      const kiss_fft_scalar *t = &l->trig[0];
+      const kiss_twiddle_scalar *t = &l->trig[0];
 
       for(i=0;i<N4;i++)
       {