X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=lib%2Flookup.c;h=901d3a6d53b0ba2d9700b19ea123ea3d5504df89;hb=a9d73029ca0b57286f182ca20f08985b9938b4da;hp=4f04dbe63135dc6be64b9be992fb6a8a6534c319;hpb=5e1fb9030d5cededd728d1e5798a3114c631b50e;p=platform%2Fupstream%2Flibvorbis.git

diff --git a/lib/lookup.c b/lib/lookup.c
index 4f04dbe..901d3a6 100644
--- a/lib/lookup.c
+++ b/lib/lookup.c
@@ -1,18 +1,17 @@
 /********************************************************************
  *                                                                  *
  * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
- * THE GNU LESSER/LIBRARY PUBLIC LICENSE, WHICH IS INCLUDED WITH    *
- * THIS SOURCE. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.        *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
  *                                                                  *
- * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2000             *
- * by Monty <monty@xiph.org> and the XIPHOPHORUS Company            *
- * http://www.xiph.org/                                             *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009             *
+ * by the Xiph.Org Foundation http://www.xiph.org/                  *
  *                                                                  *
  ********************************************************************
 
   function: lookup based functions
-  last mod: $Id: lookup.c,v 1.3 2000/11/06 00:07:01 xiphmont Exp $
+  last mod: $Id$
 
  ********************************************************************/
 
@@ -20,6 +19,7 @@
 #include "lookup.h"
 #include "lookup_data.h"
 #include "os.h"
+#include "misc.h"
 
 #ifdef FLOAT_LOOKUP
 
@@ -33,8 +33,8 @@ float vorbis_coslook(float a){
 
 /* interpolated 1./sqrt(p) where .5 <= p < 1. */
 float vorbis_invsqlook(float a){
-  double d=a*(2.*(float)INVSQ_LOOKUP_SZ)-(float)INVSQ_LOOKUP_SZ;
-  int i=vorbis_ftoi(d-.5);
+  double d=a*(2.f*(float)INVSQ_LOOKUP_SZ)-(float)INVSQ_LOOKUP_SZ;
+  int i=vorbis_ftoi(d-.5f);
   return INVSQ_LOOKUP[i]+ (d-i)*(INVSQ_LOOKUP[i+1]-INVSQ_LOOKUP[i]);
 }
 
@@ -46,9 +46,9 @@ float vorbis_invsq2explook(int a){
 #include <stdio.h>
 /* interpolated lookup based fromdB function, domain -140dB to 0dB only */
 float vorbis_fromdBlook(float a){
-  int i=vorbis_ftoi(a*((float)(-(1<<FROMdB2_SHIFT)))-5.);
-  return (i<0)?1.:
-    ((i>=(FROMdB_LOOKUP_SZ<<FROMdB_SHIFT))?0.:
+  int i=vorbis_ftoi(a*((float)(-(1<<FROMdB2_SHIFT)))-.5f);
+  return (i<0)?1.f:
+    ((i>=(FROMdB_LOOKUP_SZ<<FROMdB_SHIFT))?0.f:
      FROMdB_LOOKUP[i>>FROMdB_SHIFT]*FROMdB2_LOOKUP[i&FROMdB2_MASK]);
 }
 
@@ -56,16 +56,16 @@ float vorbis_fromdBlook(float a){
 
 #ifdef INT_LOOKUP
 /* interpolated 1./sqrt(p) where .5 <= a < 1. (.100000... to .111111...) in
-   16.16 format 
+   16.16 format
 
    returns in m.8 format */
 long vorbis_invsqlook_i(long a,long e){
-  long i=(a&0x7fff)>>(INVSQ_LOOKUP_I_SHIFT-1); 
+  long i=(a&0x7fff)>>(INVSQ_LOOKUP_I_SHIFT-1);
   long d=(a&INVSQ_LOOKUP_I_MASK)<<(16-INVSQ_LOOKUP_I_SHIFT); /*  0.16 */
   long val=INVSQ_LOOKUP_I[i]-                                /*  1.16 */
     (((INVSQ_LOOKUP_I[i]-INVSQ_LOOKUP_I[i+1])*               /*  0.16 */
       d)>>16);                                               /* result 1.16 */
-  
+
   e+=32;
   if(e&1)val=(val*5792)>>13; /* multiply val by 1/sqrt(2) */
   e=(e>>1)-8;
@@ -77,8 +77,8 @@ long vorbis_invsqlook_i(long a,long e){
 /* a is in n.12 format */
 float vorbis_fromdBlook_i(long a){
   int i=(-a)>>(12-FROMdB2_SHIFT);
-  return (i<0)?1.:
-    ((i>=(FROMdB_LOOKUP_SZ<<FROMdB_SHIFT))?0.:
+  return (i<0)?1.f:
+    ((i>=(FROMdB_LOOKUP_SZ<<FROMdB_SHIFT))?0.f:
      FROMdB_LOOKUP[i>>FROMdB_SHIFT]*FROMdB2_LOOKUP[i&FROMdB2_MASK]);
 }
 
@@ -88,7 +88,7 @@ long vorbis_coslook_i(long a){
   int i=a>>COS_LOOKUP_I_SHIFT;
   int d=a&COS_LOOKUP_I_MASK;
   return COS_LOOKUP_I[i]- ((d*(COS_LOOKUP_I[i]-COS_LOOKUP_I[i+1]))>>
-			   COS_LOOKUP_I_SHIFT);
+                           COS_LOOKUP_I_SHIFT);
 }
 
 #endif