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t-8ch/benchmark.c

Created June 13, 2012 19:42
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  1. t-8ch created this gist Jun 13, 2012.
    91 changes: 91 additions & 0 deletions benchmark.c
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,91 @@
    /*
    * Warning:
    * This thing is full of memory leaks
    *
    * filename: benchmark.c
    * compile with: LDFLAGS=$(pkg-config --libs --cflags gtk+-3.0 poppler-glib) make benchmark
    */

    #include <gtk/gtk.h>
    #include <poppler/glib/poppler.h>

    GtkWidget *canvas = NULL;
    guint max_pages = 0;
    guint cur_page = 0;
    PopplerDocument *doc;
    PopplerPage *page;

    void slide_next();

    gboolean keypress_callback(GtkWidget *widget, GdkEventKey *ev,
    gpointer data) {
    if(ev->keyval == GDK_KEY_Escape) gtk_main_quit();

    slide_next();
    }

    gboolean draw_callback(GtkWidget *widget, cairo_t *cr, gpointer data) {
    guint width, height;
    gdouble popwidth, popheight, scale_factor;

    // this should certainly done only on resize
    width = gtk_widget_get_allocated_width (canvas);
    height = gtk_widget_get_allocated_height (canvas);
    poppler_page_get_size(page, &popwidth, &popheight);

    scale_factor = height/popheight;

    cairo_scale(cr, scale_factor, scale_factor);
    poppler_page_render(page, cr);
    return FALSE;
    }

    gboolean quit_callback(GtkWidget *widget, gpointer data) {
    gtk_main_quit();
    }

    void slide_next() {
    cur_page++;
    cur_page %= max_pages;
    page = poppler_document_get_page(doc, cur_page);

    // force redraw of whole canvas
    gtk_widget_queue_draw_area(canvas, 0, 0,
    gtk_widget_get_allocated_width(canvas),
    gtk_widget_get_allocated_height(canvas));
    printf("Showing page: %2d\n", cur_page);
    fflush(stdout);
    }

    int main(int argc, char **argv) {
    GtkWidget *window = NULL;
    gchar *uri = NULL;
    gdouble elapsed = 0;
    guint i;

    if(argc < 2) {
    fprintf(stderr, "specify a path!\n");
    return 42;
    }

    uri = g_strconcat("file://", argv[1], NULL);

    gtk_init(&argc, &argv);
    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    canvas = gtk_drawing_area_new();
    doc = poppler_document_new_from_file(uri, NULL, NULL);
    max_pages = poppler_document_get_n_pages(doc);

    gtk_container_add(GTK_CONTAINER(window), canvas);
    g_signal_connect(G_OBJECT(window), "key_press_event",
    G_CALLBACK(keypress_callback), NULL);
    g_signal_connect(G_OBJECT(canvas), "destroy",
    G_CALLBACK(quit_callback), NULL);
    g_signal_connect(G_OBJECT(canvas), "draw",
    G_CALLBACK(draw_callback), NULL);

    // get initial page;
    page = poppler_document_get_page(doc, cur_page);
    gtk_widget_show_all(window);
    gtk_main();
    }