Import VST3 interface

libs/vst3/pluginterfaces/base/conststringtable.cpp

@@ -0,0 +1,106 @@
+//-----------------------------------------------------------------------------
+// Project     : SDK Core
+//
+// Category    : SDK Core Interfaces
+// Filename    : pluginterfaces/base/conststringtable.cpp
+// Created by  : Steinberg, 09/2007
+// Description : constant unicode string table
+//
+//-----------------------------------------------------------------------------
+// This file is part of a Steinberg SDK. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this distribution
+// and at www.steinberg.net/sdklicenses. 
+// No part of the SDK, including this file, may be copied, modified, propagated,
+// or distributed except according to the terms contained in the LICENSE file.
+//-----------------------------------------------------------------------------
+
+#include "conststringtable.h"
+#include <cstring>
+#include <map>
+
+namespace Steinberg {
+
+static std::map<const char8*, char16*>* stringMap;
+static std::map<const char8, char16>* charMap;
+
+static char16* generateUTF16 (const char8* str);
+
+//----------------------------------------------------------------------------
+ConstStringTable* ConstStringTable::instance ()
+{
+	static ConstStringTable stringTable;
+	return &stringTable;
+}
+
+//----------------------------------------------------------------------------
+const char16* ConstStringTable::getString (const char8* str) const
+{
+	std::map<const char8*, char16*>::iterator iter = stringMap->find (str);
+	if (iter != stringMap->end ())
+		return iter->second;
+	char16* uStr = generateUTF16 (str);
+	stringMap->insert (std::make_pair (str, uStr));
+	return uStr;
+}
+
+//----------------------------------------------------------------------------
+const char16 ConstStringTable::getString (const char8 str) const
+{
+	std::map<const char8, char16>::iterator iter = charMap->find (str);
+	if (iter != charMap->end ())
+		return iter->second;
+	char16 uStr = 0;
+#if BYTEORDER == kBigEndian
+	char8* puStr = (char8*)&uStr;
+	puStr[1] = str;
+#else
+	uStr = str;
+#endif
+	charMap->insert (std::make_pair (str, uStr));
+	return uStr;
+}
+
+//----------------------------------------------------------------------------
+ConstStringTable::ConstStringTable ()
+{
+	stringMap = new std::map<const char8*, char16*>;
+	charMap = new std::map<const char8, char16>;
+}
+
+//----------------------------------------------------------------------------
+ConstStringTable::~ConstStringTable ()
+{
+	// free out allocated strings
+	{
+		std::map<const char8*, char16*>::iterator iter = stringMap->begin ();
+		while (iter != stringMap->end ())
+		{
+			delete[] iter->second;
+			iter++;
+		}
+	} // delete iterator on map before deleting the map
+
+	delete stringMap;
+	delete charMap;
+}
+
+//----------------------------------------------------------------------------
+char16* generateUTF16 (const char8* str)
+{
+	int32 len = (int32)strlen (str);
+	char16* result = new char16[len + 1];
+	for (int32 i = 0; i < len; i++)
+	{
+#if BYTEORDER == kBigEndian
+		char8* pChr = (char8*)&result[i];
+		pChr[0] = 0;
+		pChr[1] = str[i];
+#else
+		result[i] = str[i];
+#endif
+	}
+	result[len] = 0;
+	return result;
+}
+//------------------------------------------------------------------------
+} // namespace Steinberg