Add method to check if a sound can be loaded by SDL_Mixer

Author: benstone

kauai/src/sndsdl.cpp

@@ -681,3 +681,28 @@ void SDLSoundDevice::MarkMem()
     MarkMemObj(_psdlsn);
 }
 #endif // DEBUG
+
+bool FValidSoundFile(PFNI pfniSoundFile)
+{
+    AssertPo(pfniSoundFile, 0);
+
+    bool fRet = fFalse;
+    STN stnFilePath;
+    Mix_Chunk *pchunk = pvNil;
+
+    pfniSoundFile->GetStnPath(&stnFilePath);
+
+    pchunk = Mix_LoadWAV(stnFilePath.Psz());
+    if (pchunk != pvNil)
+    {
+        fRet = fTrue;
+        Mix_FreeChunk(pchunk);
+        pchunk = pvNil;
+    }
+    else
+    {
+        Bug(Mix_GetError());
+    }
+
+    return fRet;
+}

kauai/src/sndsdl.h

@@ -64,4 +64,7 @@ class SDLSoundDevice : public SDLSoundDevice_PAR
     void NotifyChannelFinished(int channel);
 };
 
+// Return true if this sound can be loaded by SDL_Mixer
+bool FValidSoundFile(PFNI pfniSoundFile);
+
 #endif // SNDSDL_H