Engine directory for ticket #1

Engine/source/platformWin32/winVFS.cpp

@@ -0,0 +1,111 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "platformWin32/platformWin32.h"
+#include "platform/platformVFS.h"
+#include "console/console.h"
+
+#include "core/stream/memstream.h"
+#include "core/util/zip/zipArchive.h"
+
+#include "core/util/safeDelete.h"
+
+#include "VFSRes.h"
+
+//-----------------------------------------------------------------------------
+
+struct Win32VFSState
+{
+   S32 mRefCount;
+
+   HGLOBAL mResData;
+
+   MemStream *mZipStream;
+   Zip::ZipArchive *mZip;
+
+   Win32VFSState() : mResData(NULL), mZip(NULL), mRefCount(0), mZipStream(NULL)
+   {
+   }
+};
+
+static Win32VFSState gVFSState;
+
+//-----------------------------------------------------------------------------
+
+Zip::ZipArchive *openEmbeddedVFSArchive()
+{
+   if(gVFSState.mZip)
+   {
+      ++gVFSState.mRefCount;
+      return gVFSState.mZip;
+   }
+
+   HRSRC hRsrc = FindResource(NULL, MAKEINTRESOURCE(IDR_ZIPFILE), dT("RT_RCDATA"));
+
+   if(hRsrc == NULL)
+      return NULL;
+   
+   if((gVFSState.mResData = LoadResource(NULL, hRsrc)) == NULL)
+      return NULL;
+
+   void * mem = LockResource(gVFSState.mResData);
+   if(mem != NULL)
+   {
+      U32 size = SizeofResource(NULL, hRsrc);
+      gVFSState.mZipStream = new MemStream(size, mem, true, false);
+      gVFSState.mZip = new Zip::ZipArchive;
+
+      if(gVFSState.mZip->openArchive(gVFSState.mZipStream))
+      {
+         ++gVFSState.mRefCount;
+         return gVFSState.mZip;
+      }
+
+      SAFE_DELETE(gVFSState.mZip);
+      SAFE_DELETE(gVFSState.mZipStream);
+   }
+
+   FreeResource(gVFSState.mResData);
+   gVFSState.mResData = NULL;
+
+   return NULL;
+}
+
+void closeEmbeddedVFSArchive()
+{
+   if(gVFSState.mRefCount == 0)
+      return;
+
+   --gVFSState.mRefCount;
+
+   if(gVFSState.mRefCount < 1)
+   {
+      SAFE_DELETE(gVFSState.mZip);
+      SAFE_DELETE(gVFSState.mZipStream);
+      
+      if(gVFSState.mResData)
+      {
+         FreeResource(gVFSState.mResData);
+         gVFSState.mResData = NULL;
+      }
+   }
+}