diff options
Diffstat (limited to 'fbpdf.c')
| -rw-r--r-- | fbpdf.c | 159 |
1 files changed, 159 insertions, 0 deletions
@@ -0,0 +1,159 @@ +/* + * 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; +} |