llimagebmp.h

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#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*/ 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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