Changeset 397 for dsfilters/temp/libmpcenc/src/fft4g.c

Timestamp:

04/13/08 15:06:13 (17 years ago)

Author:

radscorpion

Message:

libmpcpsy should be complete
added basic VC++ project

File:

• dsfilters/temp/libmpcenc/src/fft4g.c (modified) (2 diffs)

dsfilters/temp/libmpcenc/src/fft4g.c

@@ -18 +18 @@
  */
 
+#include <math.h>
+#include <string.h>
+
+#include <mpc/mpc_types.h>
+#include <mpc/datatypes.h>
+#include <mpc/mpcmath.h>
+
+#include "../include/libmpcenc.h"
+#include "psy_model.h"
 
 
@@ -508 +517 @@
 }
 
+// patched to only-forward
+void
+rdft ( const int n, float* a, int* ip, float* w )
+{
+    float  xi;
+
+    if ( n > 4) {
+        bitrv2  ( n, ip + 2, a );
+        cftfsub ( n, a, w );
+        rftfsub ( n, a, ip[1], w + ip[0] );
+    }
+    else if ( n == 4 ) {
+        cftfsub ( n, a, w );
+    }
+    xi    = a[0] - a[1];
+    a[0] += a[1];
+    a[1]  = xi;
+    return;
+}
+
+
 void mpc_psy_model_generate_fft_tables(const int n, int *ip, float *w)
 {