start fbpdf

1 files changed, 159 insertions, 0 deletions

diff --git a/fbpdf.c b/fbpdf.c
new file mode 100644
index 0000000..063f2d9
--- /dev/null
+++ b/fbpdf.c
@@ -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;
+}