1 files changed, 17 insertions, 53 deletions
diff --git a/apps/codecs/libwavpack/float.c b/apps/codecs/libwavpack/float.c
index 9d3a82c001..6e5c4e4f61 100644
--- a/apps/codecs/libwavpack/float.c
+++ b/apps/codecs/libwavpack/float.c
@@ -25,59 +25,23 @@ int read_float_info (WavpackStream *wps, WavpackMetadata *wpmd)
     return TRUE;
 }
 
-void float_values (WavpackStream *wps, int32_t *values, int32_t num_values)
-{
-    while (num_values--) {
-        int shift_count = 0, exp = wps->float_max_exp;
-        f32 outval = { 0, 0, 0 };
-
-        if (*values) {
-            *values <<= wps->float_shift;
-
-            if (*values < 0) {
-                *values = -*values;
-                outval.sign = 1;
-            }
-
-            if (*values == 0x1000000)
-                outval.exponent = 255;
-            else {
-                if (exp)
-                    while (!(*values & 0x800000) && --exp) {
-                        shift_count++;
-                        *values <<= 1;
-                    }
-
-                if (shift_count && (wps->float_flags & FLOAT_SHIFT_ONES))
-                    *values |= ((1 << shift_count) - 1);
-
-                outval.mantissa = *values;
-                outval.exponent = exp;
-            }
-        }
+/* This function converts WavPack floating point data into standard Rockbox
+ * 28-bit integers. It is assumed that clipping will be taken care of later.
+ */
 
-        * (f32 *) values++ = outval;
-    }
-}
-
-void float_normalize (int32_t *values, int32_t num_values, int delta_exp)
+void float_values (WavpackStream *wps, int32_t *values, int32_t num_values)
 {
-    f32 *fvalues = (f32 *) values, fzero = { 0, 0, 0 };
-    int exp;
-
-    if (!delta_exp)
-        return;
-
-    while (num_values--) {
-        if ((exp = fvalues->exponent) == 0 || exp + delta_exp <= 0)
-            *fvalues = fzero;
-        else if (exp == 255 || (exp += delta_exp) >= 255) {
-            fvalues->exponent = 255;
-            fvalues->mantissa = 0;
-        }
-        else
-            fvalues->exponent = exp;
-
-        fvalues++;
-    }
+    int shift = wps->float_max_exp - wps->float_norm_exp + wps->float_shift + 5;
+
+    if (shift > 32)
+        shift = 32;
+    else if (shift < -32)
+        shift = -32;
+
+    if (shift > 0)
+        while (num_values--)
+            *values++ <<= shift;
+    else if (shift < 0)
+        while (num_values--)
+            *values++ >>= -shift;
 }