macros.h

/*
 * This file is part of libCP
 * FILE:                macros.h
 * AUTHOR:              Harald Studer <hs@lexip.ch>
 *                      Mathias Herzog <mathu@gmx.ch>
 *
 *
 * Copyright (c) 2004, The libCP project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your opinion) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
#ifndef _MACROS_H_
#define _MACROS_H_

#include "misc.h"

namespace LIBCP{

#define NOT_BINARY_IMAGE -1
#define NOT_GRAY_IMAGE -2
#define NOT_COLOR_IMAGE -3
#define NOT_COLOR24_IMAGE -4
#define NOT_COLOR32_IMAGAE -5
#define BINARY_IMAGE -6
#define DIFFERENT_IMAGE_WIDTH -7
#define DIFFERENT_IMAGE_HEIGHT -8
#define DIFFERENT_IMAGE_TYPE -9
#define NOT_POWER_OF_2 -10
#define ODD_PARAMETER -11
#define EVEN_PARAMETER -12


#define ASSERT_BINARY_IMAGE(img) if( img->type() != BaseImage::BINARY ) \
        return NOT_BINARY_IMAGE

#define ASSERT_COLOR_IMAGE(img) \
    if( img->type() != BaseImage::COLOR32 && img->type() != BaseImage::COLOR24 ) \
        return NOT_COLOR_IMAGE

#define ASSERT_COLOR32_IMAGE(img) if( img->type() != BaseImage::COLOR32 ) \
        return NOT_COLOR32_IMAGE

#define ASSERT_COLOR24_IMAGE(img) if( img->type() != BaseImage::COLOR24 ) \
        return NOT_COLOR24_IMAGE

#define ASSERT_GRAY_IMAGE(img) if( img->type() != BaseImage::GRAY )     \
        return NOT_GRAY_IMAGE

#define ASSERT_NOT_BINARY_IMAGE(img) if( img->type() == BaseImage::BINARY ) \
        return BINARY_IMAGE

#define ASSERT_WIDTH(src,dst) if( src->width() != dst->width() ) \
        return DIFFERENT_IMAGE_WIDTH

#define ASSERT_HEIGHT(src,dst) if( src->height() != dst->height() )     \
        return DIFFERENT_IMAGE_HEIGHT

#define ASSERT_TYPE(src,dst) if( src->type() != dst->type() ) \
        return DIFFERENT_IMAGE_TYPE

#define ASSERT_EVEN(number) if ( number % 2 != 0 ) \
        return ODD_PARAMETER

#define ASSERT_ODD(number) if ( number % 2 == 0 )     \
        return EVEN_PARAMETER

#define ASSERT_POWER_OF_2(img) int m = 0; if( !Misc::isPowerOfTwo( img->width(), \
                               m ) || !Misc::isPowerOfTwo( img->height(), m ) \
                               ) return NOT_POWER_OF_2

#define IS_COLOR_IMAGE(img) img->type() == Image::COLOR24 ||    \
        img->type() == Image::COLOR32

#define IS_COLOR32_IMAGE(img) img->type() == Image::COLOR32

#define IS_COLOR24_IMAGE(img) img->type() == Image::COLOR24

#define IS_GRAY_IMAGE(img) img->type() == Image::GRAY

#define IS_BINARY_IMAGE(img) img->type() == Image::BINARY

#define IMAGE_LOOP_START(img,i,j) for( i = 0; i < img->width(); i++ ){ \
        for( j = 0; j < img->height(); j++ ){

#define IMAGE_LOOP_END }}

#define WINDOW_LOOP_START(img,w,i,j,x,y) int w2 = w / 2;        \
    for( int i = -w2; i <= w2; i++ ){ \
        for( int j = -w2; j <= w2; j++ ){ \
            if( !img->isValidPixel(x+i,y+j) ) continue;

#define WINDOW_LOOP_END }}

} //end of namespace LIBCP

#endif //_MACROS_H_

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