Find a valid source buffer before updating the voice

2 files changed, 4 insertions, 3 deletions

diff --git a/OpenAL32/Include/alSource.h b/OpenAL32/Include/alSource.h
index b7c08fcd..6c821703 100644
--- a/OpenAL32/Include/alSource.h
+++ b/OpenAL32/Include/alSource.h
@@ -25,7 +25,7 @@ typedef struct ALvoice {
     struct ALsource *volatile Source;
 
     /** Method to update mixing parameters. */
-    ALvoid (*Update)(struct ALvoice *self, const struct ALsource *source, const ALCcontext *context);
+    ALvoid (*Update)(struct ALvoice *self, const struct ALsource *source, const struct ALbuffer *ALBuffer, const ALCcontext *context);
 
     /** Current target parameters used for mixing. */
     ALint Step;
diff --git a/OpenAL32/Include/alu.h b/OpenAL32/Include/alu.h
index 76a8a921..c20c6404 100644
--- a/OpenAL32/Include/alu.h
+++ b/OpenAL32/Include/alu.h
@@ -36,6 +36,7 @@ extern "C" {
 struct ALsource;
 struct ALvoice;
 struct ALeffectslot;
+struct ALbuffer;
 
 
 /* The number of distinct scale and phase intervals within the filter table. */
@@ -374,8 +375,8 @@ void ComputeFirstOrderGainsBF(const BFChannelConfig *chanmap, ALuint numchans, c
 
 ALvoid UpdateContextSources(ALCcontext *context);
 
-ALvoid CalcSourceParams(struct ALvoice *voice, const struct ALsource *source, const ALCcontext *ALContext);
-ALvoid CalcNonAttnSourceParams(struct ALvoice *voice, const struct ALsource *source, const ALCcontext *ALContext);
+ALvoid CalcSourceParams(struct ALvoice *voice, const struct ALsource *source, const struct ALbuffer *buffer, const ALCcontext *ALContext);
+ALvoid CalcNonAttnSourceParams(struct ALvoice *voice, const struct ALsource *source, const struct ALbuffer *buffer, const ALCcontext *ALContext);
 
 ALvoid MixSource(struct ALvoice *voice, struct ALsource *source, ALCdevice *Device, ALuint SamplesToDo);