From 02ea6f4823191ec6d4b12ac6c0ee75e263a45b39 Mon Sep 17 00:00:00 2001
From: Julien BLACHE <jb@jblache.org>
Date: Sat, 4 Dec 2010 16:15:49 +0100
Subject: [PATCH] Downgrade volume computations to float (from double)

Although we lose precision, this is still enough for computing relative,
absolute and RAOP volume and will make a difference on embedded CPUs.
---
 src/player.c | 8 ++++----
 src/raop.c   | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/player.c b/src/player.c
index 84e9fe51..50f19958 100644
--- a/src/player.c
+++ b/src/player.c
@@ -257,12 +257,12 @@ status_update(enum play_status status)
 static int
 rel_to_vol(int relvol)
 {
-  double vol;
+  float vol;
 
   if (relvol == 100)
     return master_volume;
 
-  vol = ((double)relvol * (double)master_volume) / 100.0;
+  vol = ((float)relvol * (float)master_volume) / 100.0;
 
   return (int)vol;
 }
@@ -270,12 +270,12 @@ rel_to_vol(int relvol)
 static int
 vol_to_rel(int volume)
 {
-  double rel;
+  float rel;
 
   if (volume == master_volume)
     return 100;
 
-  rel = ((double)volume / (double)master_volume) * 100.0;
+  rel = ((float)volume / (float)master_volume) * 100.0;
 
   return (int)rel;
 }
diff --git a/src/raop.c b/src/raop.c
index 4c8ea103..6a44786d 100644
--- a/src/raop.c
+++ b/src/raop.c
@@ -1667,10 +1667,10 @@ raop_session_failure_cb(struct evrtsp_request *req, void *arg)
 
 
 /* Volume handling */
-static double
+static float
 raop_volume_convert(int volume)
 {
-  double raop_volume;
+  float raop_volume;
 
   /* RAOP volume
    *  -144.0 is off
@@ -1681,7 +1681,7 @@ raop_volume_convert(int volume)
   if (volume == 0)
     raop_volume = 144.0;
   else
-    raop_volume = 30.0 - ((double)volume * 30.0) / 100.0;
+    raop_volume = 30.0 - ((float)volume * 30.0) / 100.0;
 
   return raop_volume;
 }
@@ -1690,7 +1690,7 @@ static int
 raop_set_volume_internal(struct raop_session *rs, int volume, evrtsp_req_cb cb)
 {
   struct evbuffer *evbuf;
-  double raop_volume;
+  float raop_volume;
   int ret;
 
   evbuf = evbuffer_new();