Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 82 insertions, 0 deletions

diff --git a/Source/WebCore/platform/win/SoftLinking.h b/Source/WebCore/platform/win/SoftLinking.h
new file mode 100644
index 0000000..b67cc81
--- /dev/null
+++ b/Source/WebCore/platform/win/SoftLinking.h
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+/*
+ * Copyright (C) 2007 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SoftLinking_h
+#define SoftLinking_h
+
+#include <windows.h>
+#include <wtf/Assertions.h>
+
+#define SOFT_LINK_LIBRARY_HELPER(lib, suffix) \
+    static HMODULE lib##Library() \
+    { \
+        static HMODULE library = LoadLibraryW(L###lib suffix); \
+        return library; \
+    }
+
+#if OS(WINCE)
+#define SOFT_LINK_GETPROCADDRESS GetProcAddressA
+#else
+#define SOFT_LINK_GETPROCADDRESS GetProcAddress
+#endif
+
+#define SOFT_LINK_LIBRARY(lib) SOFT_LINK_LIBRARY_HELPER(lib, L".dll")
+#define SOFT_LINK_DEBUG_LIBRARY(lib) SOFT_LINK_LIBRARY_HELPER(lib, L"_debug.dll")
+
+#define SOFT_LINK(library, functionName, resultType, callingConvention, parameterDeclarations, parameterNames) \
+    static resultType callingConvention init##functionName parameterDeclarations; \
+    static resultType (callingConvention*softLink##functionName) parameterDeclarations = init##functionName; \
+    \
+    static resultType callingConvention init##functionName parameterDeclarations \
+    { \
+        softLink##functionName = reinterpret_cast<resultType (callingConvention*) parameterDeclarations>(SOFT_LINK_GETPROCADDRESS(library##Library(), #functionName)); \
+        ASSERT(softLink##functionName); \
+        return softLink##functionName parameterNames; \
+    }\
+    \
+    inline resultType functionName parameterDeclarations \
+    {\
+        return softLink##functionName parameterNames; \
+    }
+
+#define SOFT_LINK_OPTIONAL(library, functionName, resultType, callingConvention, parameterDeclarations) \
+    typedef resultType (callingConvention *functionName##PtrType) parameterDeclarations; \
+    static functionName##PtrType functionName##Ptr() \
+    { \
+        static functionName##PtrType ptr; \
+        static bool initialized; \
+        \
+        if (initialized) \
+            return ptr; \
+        initialized = true; \
+        \
+        ptr = reinterpret_cast<functionName##PtrType>(SOFT_LINK_GETPROCADDRESS(library##Library(), #functionName)); \
+        return ptr; \
+    }\
+
+#endif // SoftLinking_h