Graphics Plus/Graphics Plus.iso/libs/gle/dviwp.c

C/C++ Source or Header | 1992-11-29 | 4.2 KB | 210 lines

#define XSIZECM 24        /* at 120 DPI  */
#define YSIZECM 24        /* at 72 DPI */
#define NXBITS 200
#define NYBITS 200
#include "bitmap.h"
extern char outbitname[];
extern int fittobit;
dvitype(void)
{
    fittobit = true;
    printf("Adding TIFF, Include the EPF file into WordPerfect.");
    strlwr(outbitname);
    if (strlen(outbitname)==0) {
        printf("You must give the name of the gle file.\n");
        abort();
    }
    if (strstr(outbitname,".")!=0) {
        * strchr(outbitname,'.') = 0;
    }
    strcat(outbitname,".epf");
}
/* tiff stuff starts here */

long sa(long a);
long ss(char *s);
long sw(int x);
long sl(long x);
long read_eps(char *fname,FILE *tf);
int sendmem(char *s, long j);
int setl(long p, long x);
int setw(long p, int x);

long tcnt; /* current byte position */
extern FILE *outbit;
FILE *tf;
int addeps=true;
long tstart;
bitmap_print()
{
    /* 1=byte, 2=ascii, 3=short, 4=long, 5=rational */
    char fname[80];
    long strip1,entrycount,stripoffsets,stripbcounts,ifd;
    long datep,datelen,namep,namelen,i,j;
    long h_ps,h_pslen,h_tiff,h_tifflen;

    tf = outbit; /* output file handle */

    if (addeps) {
        sw(0xd0c5); sw(0xc6d3);
        h_ps = sl(0);
        h_pslen = sl(0);
        sl(0); sl(0);
        h_tiff = sl(0);
        h_tifflen = sl(0);
        sw(0xffff);

        setl(h_ps,sa(tcnt));
        i = tcnt;
        tcnt += read_eps(outbitname,tf);
        setl(h_pslen,tcnt-i);
    }


    tstart = sw(0x4949); /* byte order  4d 4d */
    sw(0x002a);
    ifd = sl(0x0000);
    entrycount = sw(0);
    setl(ifd,sa(entrycount));
    sw(0xff); sw(3); sl(1); sw(1);  sw(0);        /* subfiletype */
    sw(0x100); sw(3); sl(1); sl(nxbits);     /* image width */
    sw(0x101); sw(3); sl(1); sl(nybits);          /* image length */
    sw(0x102); sw(3); sl(1); sw(1); sw(0);  /* bits per sample */
    sw(0x103); sw(3); sl(1); sw(1); sw(0);    /* no compression */
    sw(0x106); sw(3); sl(1); sw(1); sw(0);  /* black and white */
    sw(0x111); sw(4); sl(1); stripoffsets = sl(0); /* offsets to image data */
    sw(0x11c); sw(3); sl(1); sw(1); sw(0); /* planar config */
    sw(0x131); sw(2); namelen = sl(1); namep = sl(0); /* Name  */
    sl(0); /* end of table  */
    setw(entrycount,9);
    strip1 = tcnt;
    send_image();
    setl(stripoffsets,sa(strip1));

    namelen = strlen("GLE Tiff output.");
    setl(namep,sa(ss("GLE Tiff output.")));

    if (addeps) {
        setl(h_tiff,tstart);
        setl(h_tifflen,tcnt-tstart);
    }

    fclose(tf);

}
unsigned char swapbit[256];
send_image()
{
    int y;
    unsigned char swapnib[16]={0,8,4,12,2,10,6,14,1,9,5,13,3,11,7,15};
    unsigned char *o,c;
    int i,n1,n2;

    printf("Writing out TIFF image \n");
    for (i=0;i<256;i++) {
        n1 = i & 0xf;
        n2 = (i >> 4) & 0xf;
        swapbit[i] = swapnib[n2] | (swapnib[n1] << 4);
    }


    for (y=nybits-1 ; y>=0 ; y-=1)
        print_row(y);
}
print_row(int y)
{
    unsigned char savechar,temp;
    static unsigned char out_buff[NXBITS+10];
    unsigned int r,i,j,newy,x,z;
    unsigned char *line;
    out_buff[0] = 0;
    line = bitmap_line(y);
    for (i=0; i<nxbits/8; i++) {
        out_buff[i] = swapbit[line[i]];
    }

    sendmem(out_buff,nxbits/8);
}


long sa(long a)
{
    return a-tstart;
}
long sw(int x)
{
    fwrite(&x,2,1,tf);
    tcnt += 2;
    return tcnt-2;
}
long ss(char *s)
{
    int i;

    i = strlen(s)+1;
    if (i&1 == 1) i++;
    fwrite(s,1,i,tf);
    tcnt += i;
    return tcnt-i;
}
sendmem(char *s, long j)
{
    fwrite(s,1,j,tf);
    tcnt += j;
}
long sl(long x)
{
    fwrite(&x,4,1,tf);
    tcnt += 4;
    return tcnt-4;
}
setl(long p, long x)
{
    if (fseek(tf,p,SEEK_SET)!=0)  printf("Seekl failed, %ld %ld\n",p,tcnt);
    fwrite(&x,4,1,tf);
    if (fseek(tf,tcnt,SEEK_SET)!=0) printf("Seekl eof failed, %ld \n",p);
}
setw(long p, int x)
{
    if (fseek(tf,p,SEEK_SET)!=0) printf("Seekw failed, %ld  %ld\n",p,tcnt);
    fwrite(&x,2,1,tf);
    if (fseek(tf,tcnt,SEEK_SET)!=0) printf("Seekw eof failed, %ld \n",p);
}

long read_eps(char *fname,FILE *tf)
{
    FILE *eps;
    static char buff[1002];
    char *s;
    long tot=0;
    int n;

    strcpy(buff,fname);
    s = strchr(buff,'.');
    if (s!=NULL) *s = 0;
    strcat(buff,".eps");

#ifdef ultrix
    eps = fopen(buff,"r");
#else
    eps = fopen(buff,"rb");
#endif
    if (eps==NULL) {
        printf("Unable to open {%s}, you must PSGLE /EPS first\n",buff);\
        abort();
    }

    for (;!feof(eps);) {
      n = fread(buff,1,1000,eps);
      if (n>0) {
        fwrite(buff,1,n,tf);
        tot += n;
      }
    }
    buff[0] = 13; buff[1] = 10; buff[2] = 0;
    if (tot&1 == 1) {fwrite(" ",1,1,tf); tot++;}
    fwrite(buff,1,2,tf); tot+=2;
    return tot;
}