mga_view.c

linux下显示各种格式图片

	i=tabb[x+xxx*y];
	tabb[x+xxx*y]=tabb[xxx-x-1+xxx*y];
	tabb[xxx-x-1+xxx*y]=i;
}

	if (is_matrox==1) draw_image(image_x,image_y); else draw_image_fb(0);
	} else {
    for (x=0;x<xxx/2;x++) 
	for (y=0;y<yyy;y++) {
	    i=y_image[x+xxx*y];
	    y_image[x+xxx*y]=y_image[xxx-x-1+xxx*y];
	    y_image[xxx-x-1+xxx*y]=i;
    }
    xxx=xxx/2;
    yyy=yyy/2;

    for (x=0;x<xxx/2;x++) 
	for (y=0;y<yyy;y++) {
	    i=cr_image[x+xxx*y];
	    cr_image[x+xxx*y]=cr_image[xxx-x-1+xxx*y];
	    cr_image[xxx-x-1+xxx*y]=i;
	    i=cb_image[x+xxx*y];
	    cb_image[x+xxx*y]=cb_image[xxx-x-1+xxx*y];
	    cb_image[xxx-x-1+xxx*y]=i;
    }

	write_frame(y_image,cr_image,cb_image);

	}

}







void rew_chk()

{
	rewind(plik);
	if ((kod==3)) {
	    toob=3;
	    kod=1;
	    }
	if ((kod==0)) {
	    toob=0;
	    kod=0;
	    }
	    
}

void detect_image()
{


	YU12=0;
	toob=0;
	zoom=1;
	if (kod==1) kod=detect_png();
	rew_chk();
	if (kod==1) kod=detect_gfl();
	rew_chk();
	if (kod==1) kod=detect_tiff();
	rew_chk();
	if (kod==1) kod=detect_zmg();
	if ((YU12==1) && (is_matrox==0)) yuv_rgb(image_x,image_y);
	rew_chk();
	if (kod==1) kod=detect_gif();
	rew_chk();
	if (kod==1) kod=detect_epa();
	rew_chk();
	if (kod==1) kod=detect_raw();
	rew_chk();
	if (kod==1) kod=detect_psd();
	rew_chk();
	if (kod==1) kod=detect_jpg();
	rew_chk();
	if (kod==1) kod=detect_xpm();
	rew_chk();
	if (kod==1) kod=detect_xwd();
	rew_chk();
	if (kod==1) kod=detect_pxm();
	rew_chk();
	if (kod==1) kod=detect_pat();
	rew_chk();
	if (kod==1) kod=detect_pcx();
	rew_chk();
	if (kod==1) kod=detect_bmp();
	rew_chk();
	if (kod==1) kod=detect_hrz();
	rew_chk();
	if (kod==1) kod=detect_pic();
	rew_chk();
	if (kod==1) kod=detect_rix();
	rew_chk();
	if (kod==1) kod=detect_ras();
	rew_chk();
	if (kod==1) kod=detect_pi2();
	rew_chk();
	if (kod==1) kod=detect_pi3();
	rew_chk();
	if (kod==1) kod=detect_pi4();
	rew_chk();
	if (kod==1) kod=detect_mtv();
	rew_chk();
	if (kod==1) kod=detect_vst();
	rew_chk();
	if (kod==1) kod=detect_rgb();
	rew_chk();
	if (kod==1) kod=detect_ska();
	rew_chk();
	if (kod==1) kod=detect_tga();
	if (kod==3) kod=1;
	rew_chk();
	if (kod==1) kod=detect_cut();
	if (kod==3) kod=1;
	rew_chk();
	if (kod==1) kod=detect_mag(1);
	rew_chk();
	if (kod==1) kod=detect_lbm();
	rew_chk();
	if ((kod==1) && (toob==0) && (multi<3)) {
	    fprintf(stderr,"\x1B[1;31m%s\x1B[0;31m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");fprintf(stderr,": ");
	    fprintf(stderr,"Unknown file format !\x1B[0;0m\n");
	    }
	if ((toob==3) && (multi<3)) {
	    fprintf(stderr,"\x1B[1;31m%s\x1B[0;31m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");fprintf(stderr,": ");
	    fprintf(stderr,"File too big !\x1B[0;0m\n");
	    }

}

int init_x()
{
#ifdef USE_X
    char *displayname=NULL;
    int blackp,whitep;

    display=XOpenDisplay(displayname);
    if (display==NULL) {
	return 0;
	}
    screen_nr=DefaultScreen(display);

    tx=DisplayWidth(display,screen_nr);
    ty=DisplayHeight(display,screen_nr);
    tdepth=DefaultDepth(display,window);

    blackp=BlackPixel(display,screen_nr);
    whitep=WhitePixel(display,screen_nr);

    window=XCreateSimpleWindow(display,DefaultRootWindow(display),0,0,66,66,0,blackp,blackp);
    XStoreName(display,window,"Xmgaview (c) HelDoRe");
    XSelectInput(display,window,KeyPressMask|ExposureMask|ButtonPressMask);
    XMapRaised(display,window);
    gc=XCreateGC(display,window,0,NULL);
    XSetForeground(display,gc,whitep);

    return 1;
#else
    return 0;
#endif
}

void wait_key(int ile)
{
	set_raw(3) ;

	do {
	    if (is_matrox==0) ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo);
	    kod = kbhit() ;
//	    printf("%i\n",kod);
	    if ((kod != 32) && (kod != 115) && (kod!=102) && (kod!=127) && (kod!=114) && (kod!=70) && (kod!=103) && (kod!=99) && (kod!=116) && (kod!=91) && (kod!=93) && (kod!=112)) {
	    obr+=ile;
	    }
        if (kod==32) {
	clear_bottom();
	}
	    if ((kod ==99)) {
		if (zmgm<=2) {
		    if (zmgm==1) zmgm=2; else zmgm=1;
		    }
		if (zmgm>=3) {
		    if (zmgm==3) zmgm=4; else zmgm=3;
		    }
		kod = 0 ;
		}
	    if ((kod ==116) && (is_matrox==1)) {
		mga_transp();
		kod = 0 ;
		}
	    if ((kod ==103)) {
		if (is_matrox==1) mga_grey(); else {
		if ((grey==0) && (YU12==0)) rgb_yuv(image_x,image_y);
		fb_grey();
		}
		kod = 0 ;
		}
	    if ((kod ==102)) {
		if (is_matrox==1) mga_fs(); else fb_fs();
		kod = 0 ;
		}
	    if ((kod ==70) && (is_matrox==1)) {
		fullscr=4;
		mga_fs();
		kod = 0 ;
		}
	    if ((kod ==114) || (kod==112)){
		clear_bottom();
		obr--;
		if (kod==112) {
		    if (ori==0) ori=1; else ori=0;
		    }
		}
	    if (kod ==127) {
		clear_bottom();
		if (obr>1) obr-=2; else kod=0;
		}
	    if ((kod==115) && (YU12==0)) {
		if (is_matrox==0) rgb_yuv(image_x,image_y);
		save_zmg(zmgm);
		kod = 0 ;
		}
	    if ((kod==115) && (YU12==1)) {
		if (is_matrox==1) yuv_rgb(image_x,image_y);
	        save_tga();
		kod = 0 ;
		}
	    if ((kod ==91)) {
		flip_image_v();
		kod = 0 ;
		}
	    if ((kod ==93)) {
		flip_image_h();
		kod = 0 ;
		}


	    } 
	while (kod ==0) ; 
	if (kod==27) {
	    kod = kbhit() ;
	if (kod!=27) {
	    kod = kbhit() ;
	    kod = kbhit() ;
	    }
	}
	set_raw(0) ;

}

void wait_x_key()
{
#ifdef USE_X
    int loop_end;

    loop_end=0;

    while (!loop_end) {
    XNextEvent(display,&event);
	switch (event.type) {
	    case KeyPress:loop_end=1;break;
	    case ButtonPress:loop_end=1;break;
	    case DestroyNotify:loop_end=1;printf("FUCK!!!!\n");break;
	    default:break;
	    }

    }
#endif
}



void shutdown()
{
#ifdef USE_X
    if (iksy==1) {
        XFreeGC(display,gc);
        XDestroyWindow(display,window);
//	XCloseDisplay(display);
    }

#endif
	close(fb_dev_fd);
	close(f);
	free(tabr);
	free(tab2r);
	free(tabg);
	free(tab2g);
	free(tabb);
	free(tab2b);
}



int 
main(int argc, char *argv[])
{

iksy=0;
#ifdef USE_X
	iksy=init_x();
#endif

//	if (iksy==1) printf("Sa iksy ;-)\n");
	
        init_fb();
	multi=argc;
	is_matrox=1;
	trans=0;
	f = open("/dev/mga_vid",O_RDWR);

	if(f == -1)
	{
		is_matrox=0;
	}
	if (iksy==0) {
	    clear_bottom();
	    fprintf(stderr,"\nmga_vid image viewer v%s\n",VERSION2);
	    fprintf(stderr,"\x1B[1;30mCompile time    : %s %s\x1B[0;0m\n",__DATE__,__TIME__);
	    fprintf(stderr,"\x1B[0;38mhttp://mgaview.sourceforge.net\x1B[0;0m\n\n");
	}
	mee=argv[1];
	if (argc==1 && iksy==0) {
	mee="-h";
	}

	long_help(argv[0]);
	if (iksy==1) is_matrox=0;
	if (is_matrox==0) {
		fprintf(stderr,"\x1B[1;30mSome functions are disabled in FB mode.\x1B[0;0m\n\n");
//	    init_fb();
	    mga_vid_base=fb_mem;
	    }
	
	
	zmgm=2;		
	
	kod=1;
	



	for (obr=1;obr<argc;obr++) {
	if (start_zoom == 1 && obr == 1) obr++;
	mee=argv[obr];
	    dir=0;
	if ((plik = fopen(mee,"r")) ==NULL)
	    {
	    fprintf(stderr,"\x1B[1;31m%s\x1B[0;31m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");fprintf(stderr,": ");
	    fprintf(stderr,"File not found !\x1B[0;0m\n");
	    exit(1);
	    }
	    fgetc(plik);
	if (ferror (plik)) {
	    if (multi<3) {
	    fprintf(stderr,"\x1B[1;31m%s\x1B[0;31m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");fprintf(stderr,": ");
	    fprintf(stderr,"Is a directory !\x1B[0;0m\n");
	    }
	    kod=1;
	    dir=1;
	    fclose(plik);
	}	


	if (dir==0) {
	    fseek(plik,0,SEEK_END);
	    if (ftell(plik)>4) {
	    rewind(plik);
	    detect_image();
	    } else {
	    if (multi<3) {
	    fprintf(stderr,"\x1B[1;31m%s\x1B[0;31m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");fprintf(stderr,": ");
	    fprintf(stderr,"File size is %i b !\x1B[0;0m\n",(int)ftell(plik));
	    }
	    rewind(plik);
	    
	    }
	}

	if (kod==0){
        fullscr=0;
	grey=0;
	    fprintf(stderr,"\x1B[1;30m%s\x1B[0;0m",mee);
	    for (x=strlen(mee);x<16;x++) fprintf(stderr," ");
	    fprintf(stderr,": ");

	    
	if (YU12==0) fprintf(stderr,"press \x1B[0;38mS\x1B[0;0m to save in ZMG format\n"); 
	    else 
	    fprintf(stderr,"press \x1B[0;38mS\x1B[0;0m to save in TGA format\n");

	if (is_matrox==1) {

	mga_size();
	draw_image(image_x,image_y);
	if (start_zoom == 1)
	    mga_fs();
	     

	} else {
	if ((start_zoom == 1) && (image_x<fb_vinfo.xres) && (image_y<fb_vinfo.yres))
	   {
	     fb_fs();
	   } else 
	draw_image_fb();

	}

	if (iksy==0) wait_key(argc); else wait_x_key();

	}

	if (dir==0) fclose(plik);
	kod=1;
	}
	mga_uninit();
        if (is_matrox==0) clear_bottom(); else mga_uninit();
	fprintf(stderr,"\n");
    if (fb_vinfo.bits_per_pixel==8 && is_matrox==0) {
        restore_pal();
	}

	shutdown();
	return 0;
}