Nicolas Pitre's LOW_ACCURACY patch

git-svn-id: https://svn.xiph.org/trunk/Tremor@4012 0101bb08-14d6-0310-b084-bc0e0c8e3800

1 files changed, 10 insertions, 3 deletions

diff --git a/mdct.h b/mdct.h
index fe7ba33..6d88907 100644
--- a/mdct.h
+++ b/mdct.h
@@ -23,9 +23,16 @@
 
 #define DATA_TYPE ogg_int32_t
 #define REG_TYPE  register ogg_int32_t
-#define cPI3_8 (0x61f78a9bUL>>1)
-#define cPI2_8 (0xb504f334UL>>1)
-#define cPI1_8 (0xec835e7aUL>>1)
+
+#ifdef _LOW_ACCURACY_
+#define cPI3_8 (0x0062)
+#define cPI2_8 (0x00b5)
+#define cPI1_8 (0x00ed)
+#else
+#define cPI3_8 (0x30fbc54d)
+#define cPI2_8 (0x5a82799a)
+#define cPI1_8 (0x7641af3d)
+#endif
 
 extern void mdct_forward(int n, DATA_TYPE *in, DATA_TYPE *out);
 extern void mdct_backward(int n, DATA_TYPE *in, DATA_TYPE *out);