Function LutFromGimpLine

mapdrawgdal.c:1212–1255

/************************************************************************/

static int LutFromGimpLine( char *lut_line, GByte *lut )

{
    char wrkLUTDef[1000];
    int  i, count = 0;
    char **tokens;

    /* cleanup white space at end of line (DOS LF, etc) */
    i = strlen(lut_line) - 1;
    while( i > 0 && isspace(lut_line[i]) )
        lut_line[i--] = '\0';

    while( *lut_line == 10 || *lut_line == 13 )
        lut_line++;
    
    /* tokenize line */
    tokens = CSLTokenizeString( lut_line );
    if( CSLCount(tokens) != 17 * 2 )
    {
        CSLDestroy( tokens );
        msSetError(MS_MISCERR, 
                   "GIMP curve file appears corrupt.", 
                   "LutFromGimpLine()" );
        return -1;
    }

    /* Convert to our own format */
    wrkLUTDef[0] = '\0';
    for( i = 0; i < 17; i++ )
    {
        if( atoi(tokens[i*2]) >= 0 )
        {
            if( count++ > 0 )
                strlcat( wrkLUTDef, ",", sizeof(wrkLUTDef));

            snprintf( wrkLUTDef + strlen(wrkLUTDef), sizeof(wrkLUTDef)-strlen(wrkLUTDef), 
                      "%s:%s", tokens[i*2], tokens[i*2+1] );
        }
    }

    CSLDestroy( tokens );

    return ParseDefaultLUT( wrkLUTDef, lut );
}

/************************************************************************/
/*                            ParseGimpLUT()                            */