Exemple #1
0
cairo_surface_t *
rsvg_cairo_surface_new_from_href (RsvgHandle *handle,
                                  const char *href,
                                  GError **error)
{
    char *data;
    gsize data_len;
    char *mime_type = NULL;
    GdkPixbufLoader *loader = NULL;
    GdkPixbuf *pixbuf = NULL;
    cairo_surface_t *surface = NULL;

    data = _rsvg_handle_acquire_data (handle, href, &mime_type, &data_len, error);
    if (data == NULL)
        return NULL;

    if (mime_type) {
        loader = gdk_pixbuf_loader_new_with_mime_type (mime_type, error);
    } else {
        loader = gdk_pixbuf_loader_new ();
    }

    if (loader == NULL)
        goto out;

    if (!gdk_pixbuf_loader_write (loader, (guchar *) data, data_len, error)) {
        gdk_pixbuf_loader_close (loader, NULL);
        goto out;
    }

    if (!gdk_pixbuf_loader_close (loader, error))
        goto out;

    pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);

    if (!pixbuf) {
        g_set_error (error,
                     GDK_PIXBUF_ERROR,
                     GDK_PIXBUF_ERROR_FAILED,
                      _("Failed to load image '%s': reason not known, probably a corrupt image file"),
                      href);
        goto out;
    }

    surface = rsvg_cairo_surface_from_pixbuf (pixbuf);

    if (mime_type == NULL) {
        /* Try to get the information from the loader */
        GdkPixbufFormat *format;
        char **mime_types;

        if ((format = gdk_pixbuf_loader_get_format (loader)) != NULL) {
            mime_types = gdk_pixbuf_format_get_mime_types (format);

            if (mime_types != NULL)
                mime_type = g_strdup (mime_types[0]);
            g_strfreev (mime_types);
        }
    }

    if ((handle->priv->flags & RSVG_HANDLE_FLAG_KEEP_IMAGE_DATA) != 0 &&
        mime_type != NULL &&
        cairo_surface_set_mime_data (surface, mime_type, (guchar *) data,
                                     data_len, g_free, data) == CAIRO_STATUS_SUCCESS) {
        data = NULL; /* transferred to the surface */
    }

  out:
    if (loader)
        g_object_unref (loader);
    g_free (mime_type);
    g_free (data);

    return surface;
}
Exemple #2
0
cairo_surface_t *
rsvg_cairo_surface_new_from_href (RsvgHandle *handle,
                                  const char *href,
                                  GError **error)
{
    guint8 *data;
    gsize data_len;
    char *mime_type = NULL;
    GdkPixbufLoader *loader;
    GdkPixbuf *pixbuf = NULL;
    int res;
    cairo_surface_t *surface;

    data = _rsvg_handle_acquire_data (handle, href, &mime_type, &data_len, error);
    if (data == NULL)
        return NULL;

    if (mime_type) {
        loader = gdk_pixbuf_loader_new_with_mime_type (mime_type, error);
        g_free (mime_type);
    } else {
        loader = gdk_pixbuf_loader_new ();
    }

    if (loader == NULL) {
        g_free (data);
        return NULL;
    }

    res = gdk_pixbuf_loader_write (loader, data, data_len, error);
    g_free (data);

    if (!res) {
        gdk_pixbuf_loader_close (loader, NULL);
        g_object_unref (loader);
        return NULL;
    }

    if (!gdk_pixbuf_loader_close (loader, error)) {
        g_object_unref (loader);
        return NULL;
    }

    pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);

    if (!pixbuf) {
        g_object_unref (loader);
        g_set_error (error,
                     GDK_PIXBUF_ERROR,
                     GDK_PIXBUF_ERROR_FAILED,
                      _("Failed to load image '%s': reason not known, probably a corrupt image file"),
                      href);
        return NULL;
    }

    surface = rsvg_cairo_surface_from_pixbuf (pixbuf);

    g_object_unref (loader);

    return surface;
}