+ /* Sanity check the doc */
+ if (width <= 0 || height <= 0)
+ return NULL;
+
+ rowstride = width * 4;
+ if (rowstride / 4 != width)
+ /* overflow */
+ return NULL;
+
+ bytes = height * rowstride;
+ if (bytes / rowstride != height)
+ /* overflow */
+ return NULL;
+
+ pixels = g_try_malloc (bytes);
+ if (!pixels)
+ return NULL;
+
+ surface = cairo_image_surface_create_for_data (pixels,
+ CAIRO_FORMAT_RGB24,
+ width, height,
+ rowstride);
+ cairo_surface_set_user_data (surface, &key,
+ pixels, (cairo_destroy_func_t)g_free);
+
+ TIFFReadRGBAImageOriented (tiff_document->tiff,
+ width, height,
+ (uint32 *)pixels,
+ ORIENTATION_TOPLEFT, 1);
+ pop_handlers ();
+
+ rotated_surface = ev_document_misc_surface_rotate_and_scale (surface,
+ (width * rc->scale) + 0.5,
+ (height * rc->scale * (x_res / y_res)) + 0.5,
+ rc->rotation);
+ cairo_surface_destroy (surface);
+
+ return rotated_surface;
+}
+
+static GdkPixbuf *
+tiff_document_render_pixbuf (EvDocument *document,
+ EvRenderContext *rc)
+{
+ TiffDocument *tiff_document = TIFF_DOCUMENT (document);
+ int width, height;
+ float x_res, y_res;
+ gint rowstride, bytes;
+ guchar *pixels = NULL;
+ GdkPixbuf *pixbuf;
+ GdkPixbuf *scaled_pixbuf;
+ GdkPixbuf *rotated_pixbuf;
+
+ push_handlers ();
+ if (TIFFSetDirectory (tiff_document->tiff, rc->page) != 1) {
+ pop_handlers ();
+ return NULL;
+ }
+
+ if (!TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGEWIDTH, &width)) {
+ pop_handlers ();
+ return NULL;
+ }
+
+ if (! TIFFGetField (tiff_document->tiff, TIFFTAG_IMAGELENGTH, &height)) {
+ pop_handlers ();
+ return NULL;
+ }
+
+ tiff_document_get_resolution (tiff_document, &x_res, &y_res);
+
+ pop_handlers ();
+