From 1075cce7b3dc6fd6592a925224735437f6b6f3ed Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Sun, 11 Sep 2011 01:18:57 -0700
Subject: [PATCH] Mark some source properties volatile

---
 Alc/ALu.c                   | 38 +++++++++++++++------------
 OpenAL32/Include/alSource.h | 62 ++++++++++++++++++++++-----------------------
 2 files changed, 53 insertions(+), 47 deletions(-)

diff --git a/Alc/ALu.c b/Alc/ALu.c
index 3ce7a3b1..052a415a 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -383,23 +383,29 @@ ALvoid CalcSourceParams(ALsource *ALSource, const ALCcontext *ALContext)
     memcpy(ListenerVel, ALContext->Listener.Velocity, sizeof(ALContext->Listener.Velocity));
 
     //Get source properties
-    SourceVolume = ALSource->flGain;
-    MinVolume    = ALSource->flMinGain;
-    MaxVolume    = ALSource->flMaxGain;
-    Pitch        = ALSource->flPitch;
-    Resampler    = ALSource->Resampler;
-    memcpy(Position,  ALSource->vPosition,    sizeof(ALSource->vPosition));
-    memcpy(Direction, ALSource->vOrientation, sizeof(ALSource->vOrientation));
-    memcpy(Velocity,  ALSource->vVelocity,    sizeof(ALSource->vVelocity));
-    MinDist = ALSource->flRefDistance;
-    MaxDist = ALSource->flMaxDistance;
-    Rolloff = ALSource->flRollOffFactor;
-    InnerAngle = ALSource->flInnerAngle * ConeScale;
-    OuterAngle = ALSource->flOuterAngle * ConeScale;
+    SourceVolume   = ALSource->flGain;
+    MinVolume      = ALSource->flMinGain;
+    MaxVolume      = ALSource->flMaxGain;
+    Pitch          = ALSource->flPitch;
+    Resampler      = ALSource->Resampler;
+    Position[0]    = ALSource->vPosition[0];
+    Position[1]    = ALSource->vPosition[1];
+    Position[2]    = ALSource->vPosition[2];
+    Direction[0]   = ALSource->vOrientation[0];
+    Direction[1]   = ALSource->vOrientation[1];
+    Direction[2]   = ALSource->vOrientation[2];
+    Velocity[0]    = ALSource->vVelocity[0];
+    Velocity[1]    = ALSource->vVelocity[1];
+    Velocity[2]    = ALSource->vVelocity[2];
+    MinDist        = ALSource->flRefDistance;
+    MaxDist        = ALSource->flMaxDistance;
+    Rolloff        = ALSource->flRollOffFactor;
+    InnerAngle     = ALSource->flInnerAngle * ConeScale;
+    OuterAngle     = ALSource->flOuterAngle * ConeScale;
     AirAbsorptionFactor = ALSource->AirAbsorptionFactor;
-    DryGainHFAuto = ALSource->DryGainHFAuto;
-    WetGainAuto   = ALSource->WetGainAuto;
-    WetGainHFAuto = ALSource->WetGainHFAuto;
+    DryGainHFAuto   = ALSource->DryGainHFAuto;
+    WetGainAuto     = ALSource->WetGainAuto;
+    WetGainHFAuto   = ALSource->WetGainHFAuto;
     RoomRolloffBase = ALSource->RoomRolloffFactor;
     for(i = 0;i < NumSends;i++)
     {
diff --git a/OpenAL32/Include/alSource.h b/OpenAL32/Include/alSource.h
index 920de683..ee2a5cd1 100644
--- a/OpenAL32/Include/alSource.h
+++ b/OpenAL32/Include/alSource.h
@@ -30,30 +30,30 @@ typedef struct ALbufferlistitem
 
 typedef struct ALsource
 {
-    ALfloat      flPitch;
-    ALfloat      flGain;
-    ALfloat      flOuterGain;
-    ALfloat      flMinGain;
-    ALfloat      flMaxGain;
-    ALfloat      flInnerAngle;
-    ALfloat      flOuterAngle;
-    ALfloat      flRefDistance;
-    ALfloat      flMaxDistance;
-    ALfloat      flRollOffFactor;
-    ALfloat      vPosition[3];
-    ALfloat      vVelocity[3];
-    ALfloat      vOrientation[3];
-    ALboolean    bHeadRelative;
-    ALboolean    bLooping;
-    enum DistanceModel DistanceModel;
-    ALboolean    VirtualChannels;
+    volatile ALfloat   flPitch;
+    volatile ALfloat   flGain;
+    volatile ALfloat   flOuterGain;
+    volatile ALfloat   flMinGain;
+    volatile ALfloat   flMaxGain;
+    volatile ALfloat   flInnerAngle;
+    volatile ALfloat   flOuterAngle;
+    volatile ALfloat   flRefDistance;
+    volatile ALfloat   flMaxDistance;
+    volatile ALfloat   flRollOffFactor;
+    volatile ALfloat   vPosition[3];
+    volatile ALfloat   vVelocity[3];
+    volatile ALfloat   vOrientation[3];
+    volatile ALboolean bHeadRelative;
+    volatile ALboolean bLooping;
+    volatile enum DistanceModel DistanceModel;
+    volatile ALboolean VirtualChannels;
 
     enum Resampler Resampler;
 
-    ALenum       state;
-    ALenum       new_state;
-    ALuint       position;
-    ALuint       position_fraction;
+    volatile ALenum state;
+    ALenum new_state;
+    ALuint position;
+    ALuint position_fraction;
 
     ALbufferlistitem *queue; // Linked list of buffers in queue
     ALuint BuffersInQueue;   // Number of buffers in queue
@@ -68,20 +68,20 @@ typedef struct ALsource
         ALfloat WetGainHF;
     } Send[MAX_SENDS];
 
-    ALboolean DryGainHFAuto;
-    ALboolean WetGainAuto;
-    ALboolean WetGainHFAuto;
-    ALfloat   OuterGainHF;
+    volatile ALboolean DryGainHFAuto;
+    volatile ALboolean WetGainAuto;
+    volatile ALboolean WetGainHFAuto;
+    volatile ALfloat   OuterGainHF;
 
-    ALfloat AirAbsorptionFactor;
-    ALfloat RoomRolloffFactor;
-    ALfloat DopplerFactor;
+    volatile ALfloat AirAbsorptionFactor;
+    volatile ALfloat RoomRolloffFactor;
+    volatile ALfloat DopplerFactor;
 
-    ALint  lOffset;
-    ALint  lOffsetType;
+    ALint lOffset;
+    ALint lOffsetType;
 
     // Source Type (Static, Streaming, or Undetermined)
-    ALint  lSourceType;
+    volatile ALint lSourceType;
 
     ALuint NumChannels;
     ALuint SampleSize;
-- 
2.11.4.GIT