From 430b61c72094882bc48693dfc10c256a6ae36ee9 Mon Sep 17 00:00:00 2001
From: Andy Hung <hunga@google.com>
Date: Tue, 8 Apr 2014 18:10:02 -0700
Subject: Add capability for floating point Kaiser window filters

Change-Id: Idbb33248bbab2300c2650a4657d8fbc482a5d46c
Signed-off-by: Andy Hung <hunga@google.com>
---
 services/audioflinger/AudioResamplerFirGen.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'services/audioflinger/AudioResamplerFirGen.h')

diff --git a/services/audioflinger/AudioResamplerFirGen.h b/services/audioflinger/AudioResamplerFirGen.h
index fac3001..8833758 100644
--- a/services/audioflinger/AudioResamplerFirGen.h
+++ b/services/audioflinger/AudioResamplerFirGen.h
@@ -669,11 +669,12 @@ static inline void firKaiserGen(T* coef, int L, int halfNumCoef,
                 sg.advance();
             }
 
-            // (caution!) float version does not need rounding
             if (is_same<T, int16_t>::value) { // int16_t needs noise shaping
                 *coef++ = static_cast<T>(toint(y, 1ULL<<(sizeof(T)*8-1), err));
-            } else {
+            } else if (is_same<T, int32_t>::value) {
                 *coef++ = static_cast<T>(toint(y, 1ULL<<(sizeof(T)*8-1)));
+            } else { // assumed float or double
+                *coef++ = static_cast<T>(y);
             }
         }
     }
-- 
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