Added plCachedFileReader class for cached sfx.

2025-07-20 04:09:16 +00:00 · 2011-04-25 17:52:24 -07:00
parent 07c66e38d9
commit e3cb83f76c
3 changed files with 255 additions and 0 deletions
--- a/Sources/Plasma/PubUtilLib/plAudioCore/plCachedFileReader.h
+++ b/Sources/Plasma/PubUtilLib/plAudioCore/plCachedFileReader.h
@ -0,0 +1,77 @@
+/*==LICENSE==*
+
+CyanWorlds.com Engine - MMOG client, server and tools
+Copyright (C) 2011  Cyan Worlds, Inc.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+You can contact Cyan Worlds, Inc. by email legal@cyan.com
+ or by snail mail at:
+      Cyan Worlds, Inc.
+      14617 N Newport Hwy
+      Mead, WA   99021
+
+*==LICENSE==*/
+//////////////////////////////////////////////////////////////////////////////
+//                                                                          //
+//  plCachedFileReader - Reads (and writes, how ironic) decompressed sound  //
+//                       data that is temporarily held in a cache.          //
+//                                                                          //
+//// NOTES ///////////////////////////////////////////////////////////////////
+//                                                                          //
+//  2011.04.24 - Created by dpogue.                                         //
+//                                                                          //
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef _plcachedfilereader_h
+#define _plcachedfilereader_h
+
+#include "plAudioFileReader.h"
+
+//// Class Definition ////////////////////////////////////////////////////////
+
+class plCachedFileReader : public plAudioFileReader
+{
+public:
+    plCachedFileReader(const char *path,
+                    plAudioCore::ChannelSelect whichChan = plAudioCore::kAll);
+    virtual ~plCachedFileReader();
+
+    virtual plWAVHeader &GetHeader() const { return fHeader; }
+
+    virtual void    Close();
+
+    virtual UInt32  GetDataSize();
+    virtual float   GetLengthInSecs();
+
+    virtual hsBool  SetPosition(UInt32 numBytes);
+    virtual hsBool  Read(UInt32 numBytes, void *buffer);
+    virtual UInt32  NumBytesLeft();
+
+    virtual hsBool  OpenForWriting(const char *path, plWAVHeader &header);
+    virtual UInt32  Write(UInt32 bytes, void *buffer);
+
+    virtual hsBool  IsValid() { return fFileHandle != nil; }
+
+protected:
+    char            fFilename[512];
+    FILE *          fFileHandle;
+    plWAVHeader     fHeader;
+    UInt32          fDataLength;
+    UInt32          fCurPosition;
+
+    void IError(const char *msg);
+};
+
+#endif //_plcachedfilereader_h