Vincent Pelletier : dinput: Fix gain-related bugs.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 15a33ab209987606bb1e6e2ee3961245b1cb9ebe
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=15a33ab209987606bb1e6e2ee3...

Author: Vincent Pelletier 
Date:   Sat Jan 24 00:59:48 2009 +0100

dinput: Fix gain-related bugs.

---

dlls/dinput/effect_linuxinput.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/dinput/effect_linuxinput.c b/dlls/dinput/effect_linuxinput.c
index f225a65..7302d7f 100644
--- a/dlls/dinput/effect_linuxinput.c
+++ b/dlls/dinput/effect_linuxinput.c
@@ -380,7 +380,7 @@ static HRESULT WINAPI LinuxInputEffectImpl_GetParameters(
     }

if (dwFlags & DIEP_GAIN) {
-	peff->dwGain = This->gain;
+	peff->dwGain = This->gain * 10000 / 0xFFFF;
     }

if (dwFlags & DIEP_SAMPLEPERIOD) {
@@ -628,7 +628,7 @@ static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
     /* Gain and Sample Period settings are not supported by the linux
      * event system */
     if (dwFlags & DIEP_GAIN)
-	This->gain = 0xFFFF * peff->dwGain / 1000;
+	This->gain = 0xFFFF * peff->dwGain / 10000;

if (dwFlags & DIEP_SAMPLEPERIOD)
    TRACE("Sample period requested but no sample period functionality present.\n");
@@ -792,6 +792,7 @@ HRESULT linuxinput_create_effect(
     newEffect->ref = 1;
     newEffect->guid = *rguid;
     newEffect->fd = fd;
+    newEffect->gain = 0xFFFF;

/* set the type.  this cannot be changed over the effect's life. */
     switch (type) {