From 35a82970a3c1d175b3d77c5f42d0f720ff2884cb Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Mon, 17 Dec 2007 16:28:16 -0800
Subject: Implement AL_DIRECT_FILTER source property Only AL_FILTER_NULL filter
 types are currently supported, however

---
 OpenAL32/Include/alSource.h |  3 +++
 OpenAL32/alSource.c         | 22 ++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/OpenAL32/Include/alSource.h b/OpenAL32/Include/alSource.h
index 54262779..1107bfd9 100644
--- a/OpenAL32/Include/alSource.h
+++ b/OpenAL32/Include/alSource.h
@@ -3,6 +3,7 @@
 
 #define AL_NUM_SOURCE_PARAMS    128
 
+#include "alFilter.h"
 #include "AL/al.h"
 
 #define AL_DIRECT_FILTER                                   0x20005
@@ -59,6 +60,8 @@ typedef struct ALsource_struct
     ALuint BuffersPlayed;       // Number of buffers played on this loop
     ALuint BufferPosition;      // Read position in audio data of current buffer
 
+    ALfilter DirectFilter;
+
     // Index to itself
     ALuint source;
 
diff --git a/OpenAL32/alSource.c b/OpenAL32/alSource.c
index ec8783c3..dd1e482c 100644
--- a/OpenAL32/alSource.c
+++ b/OpenAL32/alSource.c
@@ -636,6 +636,22 @@ ALAPI ALvoid ALAPIENTRY alSourcei(ALuint source,ALenum eParam,ALint lValue)
                     alSetError(AL_INVALID_VALUE);
                 break;
 
+            case AL_DIRECT_FILTER:
+                if(alIsFilter(lValue))
+                {
+                    ALfilter *filter = (ALfilter*)ALTHUNK_LOOKUPENTRY(lValue);
+                    if(!filter)
+                    {
+                        pSource->DirectFilter.type = AL_FILTER_NULL;
+                        pSource->DirectFilter.filter = 0;
+                    }
+                    else
+                        memcpy(&pSource->DirectFilter, filter, sizeof(*filter));
+                }
+                else
+                    alSetError(AL_INVALID_VALUE);
+                break;
+
             default:
                 alSetError(AL_INVALID_ENUM);
                 break;
@@ -716,6 +732,7 @@ ALAPI void ALAPIENTRY alSourceiv(ALuint source, ALenum eParam, const ALint* plVa
                 case AL_MAX_DISTANCE:
                 case AL_ROLLOFF_FACTOR:
                 case AL_REFERENCE_DISTANCE:
+                case AL_DIRECT_FILTER:
                     alSourcei(source, eParam, plValues[0]);
                     break;
 
@@ -1044,6 +1061,10 @@ ALAPI ALvoid ALAPIENTRY alGetSourcei(ALuint source, ALenum eParam, ALint *plValu
                         alSetError(AL_INVALID_OPERATION);
                     break;
 
+                case AL_DIRECT_FILTER:
+                    *plValue = pSource->DirectFilter.filter;
+                    break;
+
                 default:
                     alSetError(AL_INVALID_ENUM);
                     break;
@@ -1153,6 +1174,7 @@ ALAPI void ALAPIENTRY alGetSourceiv(ALuint source, ALenum eParam, ALint* plValue
                 case AL_ROLLOFF_FACTOR:
                 case AL_REFERENCE_DISTANCE:
                 case AL_SOURCE_TYPE:
+                case AL_DIRECT_FILTER:
                     alGetSourcei(source, eParam, plValues);
                     break;
 
-- 
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