mga_mag.c

linux下显示各种格式图片

/* 	(c) HelDoRe
	ImageMagick unit ...    v0.0.2
			Supported formats :
			ImageMagick
*/			
#define VERMAG " unit v0.0.2"

#include <stdio.h>
#include "../mga_view.h"
#ifdef USE_MAG
//#include <time.h>
//#include <sys/types.h>
#include <magick/api.h>
#endif


void help_mag()

{
#ifdef USE_MAG
//printf("MAG%s\n   + uses ImageMagick\n",VERMAG);
#endif
}


int detect_mag(int wys)
{
#ifdef USE_MAG
    ExceptionInfo exception;
    Image *image;
    ImageInfo *image_info;
    PixelPacket piksel;
    float xx,yy;

    InitializeMagick(mee);
    GetExceptionInfo(&exception);
    image_info=CloneImageInfo((ImageInfo *) NULL);
    (void) strcpy(image_info->filename,mee);
    image=ReadImage(image_info,&exception);
    if (exception.severity != UndefinedException) return 1;//CatchException(&exception);
    depth=image->depth;
    image_x=image->columns;
    image_y=image->rows;
    if (wys==1) {
    		check_image(image_x,image_y,depth);
		printf("MAG%s\n",VERMAG);
		printf("Image detected  : %ix%ix%i\n",image_x,image_y,depth);
    }

    if ((image_x>tx) || (image_y>ty)) 
    {
    xx=(float)tx/image_x;
    yy=(float)ty/image_y;
    if (xx<yy) yy=xx; else xx=yy;
    
    image=SampleImage(image,(int)(image_x*xx),(int)(image_y*yy),&exception);
    image_x=image->columns;
    image_y=image->rows;
    printf("Scaling to      : %ix%i\n",image_x,image_y);
    }

		for (y=0;y<image_y;y++)
		    for (x=0;x<image_x;x++) {
		        piksel=GetOnePixel(image,x,y);
			tabr[x+(y*image_x)]=piksel.red & 0xff;
		        tabg[x+(y*image_x)]=piksel.green & 0xff;
		        tabb[x+(y*image_x)]=piksel.blue & 0xff;
		    }


    DestroyImage(image);
    return 0;	
#else
    return 1;
#endif
}