1 files changed, 154 insertions, 0 deletions
diff --git a/canvas/source/directx/dx_winstuff.hxx b/canvas/source/directx/dx_winstuff.hxx
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+++ b/canvas/source/directx/dx_winstuff.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_CANVAS_SOURCE_DIRECTX_DX_WINSTUFF_HXX
+#define INCLUDED_CANVAS_SOURCE_DIRECTX_DX_WINSTUFF_HXX
+
+#include <algorithm>
+#include <memory>
+
+#include <basegfx/numeric/ftools.hxx>
+
+
+#define WIN32_LEAN_AND_MEAN
+#include <prewin.h>
+
+// Enabling Direct3D Debug Information Further more, with registry key
+// \\HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Direct3D\D3D9Debugging\\EnableCreationStack
+// set to 1, sets a backtrace each time an object is created to the
+// following global variable: LPCWSTR CreationCallStack
+#if OSL_DEBUG_LEVEL > 0
+# define D3D_DEBUG_INFO
+#endif
+
+#include <d3d9.h>
+
+typedef IDirect3DSurface9 surface_type;
+
+
+#ifndef max
+#define max(a,b) (((a) > (b)) ? (a) : (b))
+#endif
+#ifndef min
+#define min(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#include <gdiplus.h>
+
+#undef max
+#undef min
+
+
+namespace dxcanvas
+{
+    // some shared pointer typedefs to Gdiplus objects
+    typedef std::shared_ptr< Gdiplus::Graphics >        GraphicsSharedPtr;
+    typedef std::shared_ptr< Gdiplus::GraphicsPath >    GraphicsPathSharedPtr;
+    typedef std::shared_ptr< Gdiplus::Bitmap >          BitmapSharedPtr;
+    typedef std::shared_ptr< Gdiplus::Font >            FontSharedPtr;
+    typedef std::shared_ptr< Gdiplus::TextureBrush >    TextureBrushSharedPtr;
+
+    /** COM object RAII wrapper
+
+        This template wraps a Windows COM object, transparently
+        handling lifetime issues the C++ way (i.e. releasing the
+        reference when the object is destroyed)
+     */
+    template< typename T > class COMReference
+    {
+    public:
+        typedef T Wrappee;
+
+        COMReference() :
+            mp( nullptr )
+        {
+        }
+
+        /** Create from raw pointer
+
+            @attention This constructor assumes the interface is
+            already acquired (unless p is NULL), no additional AddRef
+            is called here.
+
+            This caters e.g. for all DirectX factory methods, which
+            return the created interfaces pre-acquired, into a raw
+            pointer. Simply pass the pointer to this class, but don't
+            call Release manually on it!
+
+            @example IDirectDrawSurface* pSurface;
+            pDD->CreateSurface(&aSurfaceDesc, &pSurface, NULL);
+            mpSurface = COMReference< IDirectDrawSurface >(pSurface);
+
+         */
+        explicit COMReference( T* p ) :
+            mp( p )
+        {
+        }
+
+        COMReference( const COMReference& rNew ) :
+            mp( nullptr )
+        {
+            if( rNew.mp == nullptr )
+                return;
+
+            rNew.mp->AddRef(); // do that _before_ assigning the
+                               // pointer. Just in case...
+            mp = rNew.mp;
+        }
+
+        COMReference& operator=( const COMReference& rRHS )
+        {
+            COMReference aTmp(rRHS);
+            std::swap( mp, aTmp.mp );
+
+            return *this;
+        }
+
+        ~COMReference()
+        {
+            reset();
+        }
+
+        int reset()
+        {
+            int refcount = 0;
+            if( mp )
+                refcount = mp->Release();
+
+            mp = nullptr;
+            return refcount;
+        }
+
+        bool        is() const { return mp != nullptr; }
+        T*          get() const { return mp; }
+        T*          operator->() const { return mp; }
+        T&          operator*() const { return *mp; }
+
+    private:
+        T*  mp;
+    };
+
+}
+
+
+#include <postwin.h>
+
+#endif // INCLUDED_CANVAS_SOURCE_DIRECTX_DX_WINSTUFF_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */