|
 |
b83518 |
From 3e38d5ad724a042eebadcba8c2d57b0f48b7a8c7 Mon Sep 17 00:00:00 2001
|
|
|
b83518 |
From: Jason Crain <jcrain@src.gnome.org>
|
|
|
b83518 |
Date: Mon, 15 Apr 2019 23:06:36 -0600
|
|
|
b83518 |
Subject: [PATCH] tiff: Handle failure from TIFFReadRGBAImageOriented
|
|
|
b83518 |
|
|
|
b83518 |
The TIFFReadRGBAImageOriented function returns zero if it was unable to
|
|
|
b83518 |
read the image. Return NULL in this case instead of displaying
|
|
|
b83518 |
uninitialized memory.
|
|
|
b83518 |
|
|
|
b83518 |
Fixes #1129
|
|
|
b83518 |
---
|
|
|
b83518 |
backend/tiff/tiff-document.c | 28 ++++++++++++++++++----------
|
|
|
b83518 |
1 file changed, 18 insertions(+), 10 deletions(-)
|
|
|
b83518 |
|
|
|
b83518 |
diff --git a/backend/tiff/tiff-document.c b/backend/tiff/tiff-document.c
|
|
|
b83518 |
index 7715031b..38bb3bd8 100644
|
|
|
b83518 |
--- a/backend/tiff/tiff-document.c
|
|
|
b83518 |
+++ b/backend/tiff/tiff-document.c
|
|
|
b83518 |
@@ -292,18 +292,22 @@ tiff_document_render (EvDocument *document,
|
|
|
b83518 |
g_warning("Failed to allocate memory for rendering.");
|
|
|
b83518 |
return NULL;
|
|
|
b83518 |
}
|
|
|
b83518 |
-
|
|
|
b83518 |
+
|
|
|
b83518 |
+ if (!TIFFReadRGBAImageOriented (tiff_document->tiff,
|
|
|
b83518 |
+ width, height,
|
|
|
b83518 |
+ (uint32 *)pixels,
|
|
|
b83518 |
+ orientation, 0)) {
|
|
|
b83518 |
+ g_warning ("Failed to read TIFF image.");
|
|
|
b83518 |
+ g_free (pixels);
|
|
|
b83518 |
+ return NULL;
|
|
|
b83518 |
+ }
|
|
|
b83518 |
+
|
|
|
b83518 |
surface = cairo_image_surface_create_for_data (pixels,
|
|
|
b83518 |
CAIRO_FORMAT_RGB24,
|
|
|
b83518 |
width, height,
|
|
|
b83518 |
rowstride);
|
|
|
b83518 |
cairo_surface_set_user_data (surface, &key,
|
|
|
b83518 |
pixels, (cairo_destroy_func_t)g_free);
|
|
|
b83518 |
-
|
|
|
b83518 |
- TIFFReadRGBAImageOriented (tiff_document->tiff,
|
|
|
b83518 |
- width, height,
|
|
|
b83518 |
- (uint32 *)pixels,
|
|
|
b83518 |
- orientation, 0);
|
|
|
b83518 |
pop_handlers ();
|
|
|
b83518 |
|
|
|
b83518 |
/* Convert the format returned by libtiff to
|
|
|
b83518 |
@@ -384,13 +388,17 @@ tiff_document_get_thumbnail (EvDocument *document,
|
|
|
b83518 |
if (!pixels)
|
|
|
b83518 |
return NULL;
|
|
|
b83518 |
|
|
|
b83518 |
+ if (!TIFFReadRGBAImageOriented (tiff_document->tiff,
|
|
|
b83518 |
+ width, height,
|
|
|
b83518 |
+ (uint32 *)pixels,
|
|
|
b83518 |
+ ORIENTATION_TOPLEFT, 0)) {
|
|
|
b83518 |
+ g_free (pixels);
|
|
|
b83518 |
+ return NULL;
|
|
|
b83518 |
+ }
|
|
|
b83518 |
+
|
|
|
b83518 |
pixbuf = gdk_pixbuf_new_from_data (pixels, GDK_COLORSPACE_RGB, TRUE, 8,
|
|
|
b83518 |
width, height, rowstride,
|
|
|
b83518 |
(GdkPixbufDestroyNotify) g_free, NULL);
|
|
|
b83518 |
- TIFFReadRGBAImageOriented (tiff_document->tiff,
|
|
|
b83518 |
- width, height,
|
|
|
b83518 |
- (uint32 *)pixels,
|
|
|
b83518 |
- ORIENTATION_TOPLEFT, 0);
|
|
|
b83518 |
pop_handlers ();
|
|
|
b83518 |
|
|
|
b83518 |
ev_render_context_compute_scaled_size (rc, width, height * (x_res / y_res),
|
|
|
b83518 |
--
|
|
|
b83518 |
2.21.0
|
|
|
b83518 |
|