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/*
* pdf viewer, for framebuffer devices
*
* (c) 1998-2016 Gerd Hoffmann <gerd@kraxel.org>
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
#include <math.h>
#include <signal.h>
#include <ctype.h>
#include <locale.h>
#include <wchar.h>
#include <setjmp.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <linux/kd.h>
#include <linux/vt.h>
#include <linux/fb.h>
#include <poppler.h>
#include "vt.h"
#include "fbtools.h"
#include "drmtools.h"
/* ---------------------------------------------------------------------- */
gfxstate *gfx;
int debug;
PopplerDocument *doc;
PopplerPage *page;
cairo_surface_t *surface;
cairo_t *context;
/* ---------------------------------------------------------------------- */
static jmp_buf fb_fatal_cleanup;
static void catch_exit_signal(int signal)
{
siglongjmp(fb_fatal_cleanup,signal);
}
static void exit_signals_init(void)
{
struct sigaction act,old;
int termsig;
memset(&act,0,sizeof(act));
act.sa_handler = catch_exit_signal;
sigemptyset(&act.sa_mask);
sigaction(SIGINT, &act,&old);
sigaction(SIGQUIT,&act,&old);
sigaction(SIGTERM,&act,&old);
sigaction(SIGABRT,&act,&old);
sigaction(SIGTSTP,&act,&old);
sigaction(SIGBUS, &act,&old);
sigaction(SIGILL, &act,&old);
sigaction(SIGSEGV,&act,&old);
if (0 == (termsig = sigsetjmp(fb_fatal_cleanup,0)))
return;
/* cleanup */
gfx->cleanup_display();
console_switch_cleanup();
fprintf(stderr,"Oops: %s\n",strsignal(termsig));
exit(42);
}
/* ---------------------------------------------------------------------- */
static void cleanup_and_exit(int code)
{
gfx->cleanup_display();
console_switch_cleanup();
exit(code);
}
static void console_switch_redraw(void)
{
/* TODO */
}
int main(int argc, char *argv[])
{
GError *err = NULL;
bool framebuffer = false;
double w,h;
setlocale(LC_ALL,"");
if (argc < 2) {
fprintf(stderr, "usage: %s <pdf-file>\n", argv[0]);
exit(1);
}
doc = poppler_document_new_from_file(argv[1], NULL, &err);
if (!doc) {
fprintf(stderr, "loading %s failed: %s\n", argv[1], err->message);
exit(1);
}
/* gfx init */
gfx = drm_init(NULL, NULL);
if (!gfx) {
framebuffer = true;
gfx = fb_init(NULL, NULL, 0);
}
if (!gfx) {
fprintf(stderr, "graphics init failed\n");
exit(1);
}
exit_signals_init();
signal(SIGTSTP,SIG_IGN);
if (console_switch_init(console_switch_redraw) < 0) {
fprintf(stderr, "NOTICE: No vt switching available on terminal.\n");
fprintf(stderr, "NOTICE: Not started from linux console? CONFIG_VT=n?\n");
if (framebuffer) {
fprintf(stderr, "WARNING: Running on framebuffer and can't manage access.\n");
fprintf(stderr, "WARNING: Other processes (fbcon too) can write to display.\n");
fprintf(stderr, "WARNING: Also can't properly cleanup on exit.\n");
}
}
surface = cairo_image_surface_create_for_data(gfx->mem,
CAIRO_FORMAT_ARGB32,
gfx->hdisplay,
gfx->vdisplay,
gfx->stride);
context = cairo_create(surface);
cairo_set_source_rgb(context, 1, 1, 1);
cairo_paint(context);
page = poppler_document_get_page(doc, 0);
poppler_page_get_size(page, &w, &h);
fprintf(stderr, "page: %.1lf x %.1lf\n", w, h);
poppler_page_render(page, context);
cairo_show_page(context);
sleep(5);
cleanup_and_exit(0);
return 0;
}
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