Imported existing code

indra/llimage/llimagebmp.h

@@ -0,0 +1,70 @@
+/** 
+ * @file llimagebmp.h
+ * @brief Image implementation for BMP.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLIMAGEBMP_H
+#define LL_LLIMAGEBMP_H
+
+#include "llimage.h"
+
+// This class compresses and decompressed BMP files
+
+class LLImageBMP : public LLImageFormatted
+{
+protected:
+	virtual ~LLImageBMP();
+	
+public:
+	LLImageBMP();
+
+	/*virtual*/ std::string getExtension() { return std::string("bmp"); }
+	/*virtual*/ BOOL updateData();
+	/*virtual*/ BOOL decode(LLImageRaw* raw_image, F32 decode_time);
+	/*virtual*/ BOOL encode(const LLImageRaw* raw_image, F32 encode_time);
+
+protected:
+	BOOL		decodeColorTable8( U8* dst, U8* src );
+	BOOL		decodeColorMask16( U8* dst, U8* src );
+	BOOL		decodeTruecolor24( U8* dst, U8* src );
+	BOOL		decodeColorMask32( U8* dst, U8* src );
+
+	U32			countTrailingZeros( U32 m );
+
+protected:
+	S32			mColorPaletteColors;
+	U8*			mColorPalette;
+	S32			mBitmapOffset;
+	S32			mBitsPerPixel;
+	U32			mBitfieldMask[4]; // rgba
+	BOOL		mOriginAtTop;
+};
+
+#endif