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diff --git a/indra/llimage/llimagedimensionsinfo.h b/indra/llimage/llimagedimensionsinfo.h
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+++ b/indra/llimage/llimagedimensionsinfo.h
@@ -0,0 +1,133 @@
+/** 
+ * @file llimagedimentionsinfo.h
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library 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
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+
+#ifndef LL_LLIMAGEDIMENSIONSINFO_H
+#define LL_LLIMAGEDIMENSIONSINFO_H
+
+//-----------------------------------------------------------------------------
+// LLImageDimensionsInfo
+// helper class to get image dimensions WITHOUT loading image to memore
+// usefull when image may be too large...
+//-----------------------------------------------------------------------------
+class LLImageDimensionsInfo
+{
+public:
+	LLImageDimensionsInfo():
+		mData(NULL)
+		,mHeight(0)
+		,mWidth(0)
+	{}
+	~LLImageDimensionsInfo()
+	{
+		clean();
+	}
+
+	bool load(const std::string& src_filename,U32 codec);
+	S32 getWidth() const { return mWidth;}
+	S32 getHeight() const { return mHeight;}
+
+	const std::string& getLastError()
+	{
+		return mLastError;
+	}
+protected:
+
+	void clean()
+	{
+		mInfile.close();
+		delete[] mData;
+		mData = NULL;
+		mWidth = 0;
+		mHeight = 0;
+	}
+
+	U8* getData()
+	{
+		return mData;
+	}
+
+
+	void setLastError(const std::string& message, const std::string& filename)
+	{
+		std::string error = message;
+		if (!filename.empty())
+			error += std::string(" FILE: ") + filename;
+		mLastError = error;
+	}
+
+
+	bool getImageDimensionsBmp();
+	bool getImageDimensionsTga();
+	bool getImageDimensionsPng();
+	bool getImageDimensionsJpeg();
+	
+	S32 read_s32()
+	{
+		char p[4];
+		mInfile.read(&p[0],4);
+		S32 temp =	(((S32)p[3])       & 0x000000FF) |
+					(((S32)p[2] << 8 ) & 0x0000FF00) |
+					(((S32)p[1] << 16) & 0x00FF0000) |
+					(((S32)p[0] << 24) & 0xFF000000);
+
+		return temp;
+	}
+	S32 read_reverse_s32()
+	{
+		char p[4];
+		mInfile.read(&p[0],4);
+		S32 temp =	(((S32)p[0])       & 0x000000FF) |
+					(((S32)p[1] << 8 ) & 0x0000FF00) |
+					(((S32)p[2] << 16) & 0x00FF0000) |
+					(((S32)p[3] << 24) & 0xFF000000);
+
+		return temp;
+	}
+
+	U8 read_byte()
+	{
+		U8 bt;
+		mInfile.read(&bt,1);
+		return bt;
+	}
+
+	U16 read_short()
+	{
+		return read_byte() << 8 | read_byte();
+	}
+
+protected:
+	LLAPRFile mInfile ;
+	std::string mSrcFilename;
+
+	std::string mLastError;
+
+	U8* mData;
+
+	S32 mWidth;
+	S32 mHeight;
+};
+#endif