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open source software development oslavujeme 10 rokov vývoja otvoreného softvéru! Nedeľa, 18. november 2018

Súbor: [Platon] / cpdf / cpdf.c (stiahnutie)

Revízia 1.15, Tue Feb 11 20:10:30 2003 UTC (15 years, 9 months ago) by lynx


Zmeny od 1.14: +6 -9 [lines]

improved reading and working with objects
remove read bug from get_startxref() if PDF uses \r\n as a newline.
better reading streams.
AND MANY MANY MORE! :))) but you still cant use it :-D

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <vga.h>
#include <vgagl.h>
#include <unistd.h>
#include <fcntl.h>
#include <getopt.h>
#include <mcheck.h>

#include "parse.h"
#include "cpdf.h"
#include "svga.h"

/* $Platon: cpdf/cpdf.c,v 1.14 2002/12/23 02:40:05 lynx Exp $ */
static struct option lopt[] = {

    {"mode", required_argument, 0, 'm'},
    {"page", required_argument, 0, 'p'},
    {0, 0, 0, 0}
};
void loop(void);
void usage(char *prg)
{
    printf("Usage: %s <file> [-mode mode] [-page page]\n", prg);
    exit(errno);
}

int main(int argc, char **argv)
{
    char c;
    int mode = G800x600x64K, in = 0;
    int p = 0;
    if (argc == 1)
        usage(argv[0]);
    while ((c =
        getopt_long(argc - 1, &argv[1], "m:p:", lopt,
                &in)) != -1) {
        switch (c) {
        case 'm':
            if (argv[optind + 1] == NULL)
                usage(argv[0]);
            if ((mode =
                 vga_getmodenumber(argv[optind + 1])) == -1) {
                fprintf(stderr,
                    "Unsupported mode %s! Using default.\n",
                    argv[optind + 1]);
                if ((mode = vga_getdefaultmode()) == -1) {
                    fprintf(stderr,
                        "SVGALIB_DEFAULT_MODE variable is empty!\n");
                    usage(argv[0]);
                }
            }
            break;
        case 'p':
            p = atoi(optarg);
            break;
        default:
            fprintf(stderr, "%s", strerror(errno));
            exit(errno);
        }
    }
    if ((fp = fopen(argv[1], "r")) == NULL) {
        fprintf(stderr, "Can't open %s: %s\n", argv[1],
            strerror(errno));
        exit(errno);
    }
    {
        char ispdf[5];
        fread(ispdf, sizeof(ispdf), sizeof(char), fp);
        if (strncmp(ispdf, "%PDF-", sizeof(ispdf)) != 0) {
            fprintf(stderr, "%s is not PDF document!\n",
                argv[1]);
            exit(errno);
        }
    }
#ifndef DEBUG
    printf("Using %s mode\n", vga_getmodename(mode));
    vga_init();
    vga_setmode(mode);
    gl_setcontextvga(mode);
    physicalscreen = gl_allocatecontext();
    gl_getcontext(physicalscreen);
    gl_setcontextvgavirtual(mode);
    virtualscreen = gl_allocatecontext();
    gl_getcontext(virtualscreen);
    gl_setcontext(virtualscreen);
    gl_clearscreen(0xFFFFFFFF);
    {
        char *i;
        i = vga_getmodename(mode) + 1;
        screen.x = (int) strtoul(i, NULL, 10);
        i = (char *) strchr(i, 'x') + 1;
        screen.y = (int) strtoul(i, NULL, 10);
        i = (char *) strchr(i, 'x') + 1;
        if (*i == '2' && *(i + 1) == '\0')
            screen.color = 2;
        if (*i == '1' && *(i + 1) == '6' && *(i + 2) == '\0')
            screen.color = 16;
        if (!strncmp(i, "256", 3))
            screen.color = 256;
        if (!strncmp(i, "32K", 3))
            screen.color = K32;
        if (!strncmp(i, "64K", 3))
            screen.color = K64;
        if (!strncmp(i, "16M", 3))
            screen.color = M16;
    }
#endif
    parse_pdf();
    current_page = p;
    loop();
    vga_setmode(TEXT);
    fclose(fp);
    exit(0);
}

void loop(void)
{
    while (page_tree[current_page]) {
        render();
        current_page++;
    }
    return;
}

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