Christian Costa : dmusic: Handle GUID_NULL when creating IDirectMusicBuffer .

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 51942db8116dabd670854211e2bf4677b15eccc9
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=51942db8116dabd670854211e2bf4677b15eccc9

Author: Christian Costa <titan.costa at gmail.com>
Date:   Thu Apr 26 08:08:26 2012 +0200

dmusic: Handle GUID_NULL when creating IDirectMusicBuffer.

---

 dlls/dmusic/buffer.c       |    7 ++++++-
 dlls/dmusic/tests/dmusic.c |    2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/dlls/dmusic/buffer.c b/dlls/dmusic/buffer.c
index 838ceee..0626276 100644
--- a/dlls/dmusic/buffer.c
+++ b/dlls/dmusic/buffer.c
@@ -18,6 +18,8 @@
  */
 
 #include "dmusic_private.h"
+#include "initguid.h"
+#include "dmksctrl.h"
 
 WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
 
@@ -242,7 +244,10 @@ HRESULT DMUSIC_CreateDirectMusicBufferImpl(LPDMUS_BUFFERDESC desc, LPVOID* ret_i
     dmbuffer->IDirectMusicBuffer_iface.lpVtbl = &DirectMusicBuffer_Vtbl;
     dmbuffer->ref = 0; /* Will be inited by QueryInterface */
 
-    memcpy(&dmbuffer->format, &desc->guidBufferFormat, sizeof(GUID));
+    if (IsEqualGUID(&desc->guidBufferFormat, &GUID_NULL))
+        dmbuffer->format = KSDATAFORMAT_SUBTYPE_MIDI;
+    else
+        dmbuffer->format = desc->guidBufferFormat;
     dmbuffer->size = (desc->cbBuffer + 3) & ~3; /* Buffer size must be multiple of 4 bytes */
 
     dmbuffer->data = HeapAlloc(GetProcessHeap(), 0, dmbuffer->size);
diff --git a/dlls/dmusic/tests/dmusic.c b/dlls/dmusic/tests/dmusic.c
index 1e55961..21607cb 100644
--- a/dlls/dmusic/tests/dmusic.c
+++ b/dlls/dmusic/tests/dmusic.c
@@ -130,7 +130,7 @@ static void test_dmbuffer(void)
 
     hr = IDirectMusicBuffer_GetBufferFormat(dmbuffer, &format);
     ok(hr == S_OK, "IDirectMusicBuffer_GetBufferFormat returned %x\n", hr);
-    todo_wine ok(IsEqualGUID(&format, &KSDATAFORMAT_SUBTYPE_MIDI), "Wrong format returned %s\n", debugstr_guid(&format));
+    ok(IsEqualGUID(&format, &KSDATAFORMAT_SUBTYPE_MIDI), "Wrong format returned %s\n", debugstr_guid(&format));
     hr = IDirectMusicBuffer_GetMaxBytes(dmbuffer, &size);
     ok(hr == S_OK, "IDirectMusicBuffer_GetMaxBytes returned %x\n", hr);
     ok(size == 1024, "Buffer size is %u instead of 1024\n", size);