Alistair Leslie-Hughes : dmloader: Support DMUS_OBJ_MEMORY cache lookups.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 4df9039f75c93f558a10a6ee6ac29c1aa4681aca
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=4df9039f75c93f558a10a6ee6ac29c1aa4681aca

Author: Alistair Leslie-Hughes <leslie_alistair at hotmail.com>
Date:   Thu Nov 28 10:08:18 2019 +0000

dmloader: Support DMUS_OBJ_MEMORY cache lookups.

Signed-off-by: Alistair Leslie-Hughes <leslie_alistair at hotmail.com>
Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/dmloader/loader.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/dlls/dmloader/loader.c b/dlls/dmloader/loader.c
index 42209def94..9048c02dfc 100644
--- a/dlls/dmloader/loader.c
+++ b/dlls/dmloader/loader.c
@@ -191,8 +191,18 @@ static struct cache_entry *find_cache_object(IDirectMusicLoaderImpl *This, DMUS_
     if (desc->dwValidData & DMUS_OBJ_STREAM)
         FIXME("Finding DMUS_OBJ_STREAM cached objects currently not supported.\n");
 
-    if (desc->dwValidData & DMUS_OBJ_MEMORY)
-        FIXME("Finding DMUS_OBJ_MEMORY cached objects currently not supported.\n");
+    if (desc->dwValidData & DMUS_OBJ_MEMORY) {
+        LIST_FOR_EACH_ENTRY(existing, &This->cache, struct cache_entry, entry) {
+            if (existing->Desc.dwValidData & DMUS_OBJ_MEMORY &&
+                    desc->llMemLength == existing->Desc.llMemLength &&
+                    (desc->pbMemData == existing->Desc.pbMemData ||
+                    !memcmp(desc->pbMemData, existing->Desc.pbMemData, desc->llMemLength)) ) {
+                TRACE("Found by DMUS_OBJ_MEMORY (%d)\n",
+                    desc->pbMemData == existing->Desc.pbMemData);
+                return existing;
+            }
+        }
+    }
 
     if ((desc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) ==
             (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) {