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/**
* @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
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