From 017ab1b3fd6d5c95dc2793af0cb2bb394e6fbe12 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Mon, 29 Nov 2010 17:14:22 -0800
Subject: Add IMA4 as a source data type

---
 OpenAL32/Include/alBuffer.h |  1 +
 OpenAL32/alBuffer.c         | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/OpenAL32/Include/alBuffer.h b/OpenAL32/Include/alBuffer.h
index 6f1584a4..870014b4 100644
--- a/OpenAL32/Include/alBuffer.h
+++ b/OpenAL32/Include/alBuffer.h
@@ -18,6 +18,7 @@ enum SrcFmtType {
     SrcFmtFloat,  /* AL_FLOAT */
     SrcFmtDouble, /* AL_DOUBLE */
     SrcFmtMulaw,  /* AL_MULAW */
+    SrcFmtIMA4,   /* AL_IMA4 */
 };
 enum SrcFmtChannels {
     SrcFmtMono,   /* AL_MONO */
diff --git a/OpenAL32/alBuffer.c b/OpenAL32/alBuffer.c
index 6a749256..5b30461e 100644
--- a/OpenAL32/alBuffer.c
+++ b/OpenAL32/alBuffer.c
@@ -1288,6 +1288,8 @@ static void Convert_##T(T *dst, const ALvoid *src, enum SrcFmtType srcType,   \
         case SrcFmtMulaw:                                                     \
             Convert_##T##_ALmulaw(dst, src, len);                             \
             break;                                                            \
+        case SrcFmtIMA4:                                                      \
+            break; /* not handled here */                                     \
     }                                                                         \
 }
 
@@ -1396,6 +1398,7 @@ ALuint BytesFromSrcFmt(enum SrcFmtType type)
     case SrcFmtFloat: return sizeof(ALfloat);
     case SrcFmtDouble: return sizeof(ALdouble);
     case SrcFmtMulaw: return sizeof(ALubyte);
+    case SrcFmtIMA4: break; /* not handled here */
     }
     return 0;
 }
@@ -1434,6 +1437,10 @@ void DecomposeInputFormat(ALenum format, enum SrcFmtChannels *chans,
             *chans = SrcFmtMono;
             *type  = SrcFmtDouble;
             break;
+        case AL_FORMAT_MONO_IMA4:
+            *chans = SrcFmtMono;
+            *type  = SrcFmtIMA4;
+            break;
         case AL_FORMAT_STEREO8:
             *chans = SrcFmtStereo;
             *type  = SrcFmtUByte;
@@ -1450,6 +1457,10 @@ void DecomposeInputFormat(ALenum format, enum SrcFmtChannels *chans,
             *chans = SrcFmtStereo;
             *type  = SrcFmtDouble;
             break;
+        case AL_FORMAT_STEREO_IMA4:
+            *chans = SrcFmtStereo;
+            *type  = SrcFmtIMA4;
+            break;
         case AL_FORMAT_QUAD8_LOKI:
         case AL_FORMAT_QUAD8:
             *chans = SrcFmtQuad;
-- 
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