GNU bug report logs - #45907
Emacs has problems with some GIF files

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Package: emacs;

Reported by: dick <dick.r.chiang <at> gmail.com>

Date: Fri, 15 Jan 2021 23:18:02 UTC

Severity: normal

Fixed in version 27.2

Done: dick <dick.r.chiang <at> gmail.com>

Bug is archived. No further changes may be made.

Full log

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: dick <dick.r.chiang <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Shr memory singularity gif89a
Date: Fri, 15 Jan 2021 18:17:09 -0500

[Message part 1 (text/plain, inline)]
Disclaimer: Avoid running this if you need your machine to be up.
emacs -Q --eval "(eww \"https://github.com/enphysoft/search-gmail-using-message-id\")"


[0001-Avoid-gif89a-explosions.patch (text/x-diff, inline)]
From 7d43e6ed260c7e920b656a21a4876b87b277d81d Mon Sep 17 00:00:00 2001
From: dickmao <none>
Date: Fri, 15 Jan 2021 18:02:44 -0500
Subject: [PATCH] Avoid gif89a explosions

With the increased use of gif89a, my gnus is achieving memory
consumption singularity more frequently.

* lisp/net/shr.el (shr-put-image): When content-type is
application/octet-stream, do not attempt insert-image.
* test/src/xdisp-tests.el (xdisp-tests--window-text-pixel-size,
xdisp-tests--window-text-pixel-size-leading-space,
xdisp-tests--window-text-pixel-size-trailing-space):
`make check` currently fails without conditioning these tests for
graphics display.
---
 lisp/net/shr.el         | 53 ++++++++++++++++++++------------------
 test/src/xdisp-tests.el | 57 ++++++++++++++++++++++-------------------
 2 files changed, 58 insertions(+), 52 deletions(-)

diff --git a/lisp/net/shr.el b/lisp/net/shr.el
index 9c3740fccc..eb69668f32 100644
--- a/lisp/net/shr.el
+++ b/lisp/net/shr.el
@@ -1109,46 +1109,49 @@ shr-put-image
   "Insert image SPEC with a string ALT.  Return image.
 SPEC is either an image data blob, or a list where the first
 element is the data blob and the second element is the content-type."
-  (if (display-graphic-p)
+  (let (image)
+    (when (display-graphic-p)
       (let* ((size (cdr (assq 'size flags)))
 	     (data (if (consp spec)
 		       (car spec)
 		     spec))
 	     (content-type (and (consp spec)
 				(cadr spec)))
-	     (start (point))
-	     (image (cond
-		     ((eq size 'original)
-		      (create-image data nil t :ascent 100
-				    :format content-type))
-		     ((eq content-type 'image/svg+xml)
-                      (when (image-type-available-p 'svg)
-		        (create-image data 'svg t :ascent 100)))
-		     ((eq size 'full)
-		      (ignore-errors
-			(shr-rescale-image data content-type
-                                           (plist-get flags :width)
-                                           (plist-get flags :height))))
-		     (t
-		      (ignore-errors
-			(shr-rescale-image data content-type
-                                           (plist-get flags :width)
-                                           (plist-get flags :height)))))))
+	     (start (point)))
+        (setq image
+              (cond
+	       ((eq size 'original)
+		(create-image data nil t :ascent 100
+			      :format content-type))
+	       ((eq content-type 'image/svg+xml)
+                (when (image-type-available-p 'svg)
+		  (create-image data 'svg t :ascent 100)))
+               ((eq content-type 'application/octet-stream)
+                nil)
+	       ((eq size 'full)
+		(ignore-errors
+		  (shr-rescale-image data content-type
+                                     (plist-get flags :width)
+                                     (plist-get flags :height))))
+	       (t
+		(ignore-errors
+		  (shr-rescale-image data content-type
+                                     (plist-get flags :width)
+                                     (plist-get flags :height))))))
         (when image
 	  ;; When inserting big-ish pictures, put them at the
 	  ;; beginning of the line.
-	  (when (and (> (current-column) 0)
+          (when (and (> (current-column) 0)
 		     (> (car (image-size image t)) 400))
 	    (insert "\n"))
 	  (if (eq size 'original)
 	      (insert-sliced-image image (or alt "*") nil 20 1)
 	    (insert-image image (or alt "*")))
-	  (put-text-property start (point) 'image-size size)
-	  (when (and shr-image-animate
+          (put-text-property start (point) 'image-size size)
+          (when (and shr-image-animate
                      (cdr (image-multi-frame-p image)))
-            (image-animate image nil 60)))
-	image)
-    (insert (or alt ""))))
+            (image-animate image nil 60)))))
+    (or image (insert (or alt "")))))
 
 (defun shr--image-type ()
   "Emacs image type to use when displaying images.
diff --git a/test/src/xdisp-tests.el b/test/src/xdisp-tests.el
index ec96d777ff..de92d26ef8 100644
--- a/test/src/xdisp-tests.el
+++ b/test/src/xdisp-tests.el
@@ -72,34 +72,37 @@ xdisp-tests--minibuffer-scroll
     (should (equal (nth 0 posns) (nth 1 posns)))
     (should (equal (nth 1 posns) (nth 2 posns)))))
 
-(ert-deftest xdisp-tests--window-text-pixel-size () ;; bug#45748
-  (with-temp-buffer
-    (insert "xxx")
-    (let* ((window
-            (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
-          (char-width (frame-char-width))
-          (size (window-text-pixel-size nil t t)))
-      (delete-frame (window-frame window))
-      (should (equal (/ (car size) char-width) 3)))))
+(when (display-graphic-p)
+  (ert-deftest xdisp-tests--window-text-pixel-size () ;; bug#45748
+    (with-temp-buffer
+      (insert "xxx")
+      (let* ((window
+              (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
+             (char-width (frame-char-width))
+             (size (window-text-pixel-size nil t t)))
+        (delete-frame (window-frame window))
+        (should (equal (/ (car size) char-width) 3))))))
 
-(ert-deftest xdisp-tests--window-text-pixel-size-leading-space () ;; bug#45748
-  (with-temp-buffer
-    (insert " xx")
-    (let* ((window
-            (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
-          (char-width (frame-char-width))
-          (size (window-text-pixel-size nil t t)))
-      (delete-frame (window-frame window))
-      (should (equal (/ (car size) char-width) 3)))))
+(when (display-graphic-p)
+  (ert-deftest xdisp-tests--window-text-pixel-size-leading-space () ;; bug#45748
+    (with-temp-buffer
+      (insert " xx")
+      (let* ((window
+              (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
+             (char-width (frame-char-width))
+             (size (window-text-pixel-size nil t t)))
+        (delete-frame (window-frame window))
+        (should (equal (/ (car size) char-width) 3))))))
 
-(ert-deftest xdisp-tests--window-text-pixel-size-trailing-space () ;; bug#45748
-  (with-temp-buffer
-    (insert "xx ")
-    (let* ((window
-            (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
-          (char-width (frame-char-width))
-          (size (window-text-pixel-size nil t t)))
-      (delete-frame (window-frame window))
-      (should (equal (/ (car size) char-width) 3)))))
+(when (display-graphic-p)
+  (ert-deftest xdisp-tests--window-text-pixel-size-trailing-space () ;; bug#45748
+    (with-temp-buffer
+      (insert "xx ")
+      (let* ((window
+              (display-buffer (current-buffer) '(display-buffer-in-child-frame . nil)))
+             (char-width (frame-char-width))
+             (size (window-text-pixel-size nil t t)))
+        (delete-frame (window-frame window))
+        (should (equal (/ (car size) char-width) 3))))))
 
 ;;; xdisp-tests.el ends here
-- 
2.26.2


[Message part 3 (text/plain, inline)]


In GNU Emacs 27.1.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2020-12-08 built on dick
Repository revision: 8e7325909363affe27c36d1181b60a625ea04d23
Repository branch: emacs-27
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 18.04.4 LTS

Recent messages:
Auto-saving...done
Mark set
Auto-saving...done
Mark saved where search started [2 times]
No ChangeLog data at point
Auto-saving...done
Mark set [2 times]
Saving file /home/dick/emacs/.git/COMMIT_EDITMSG...
Wrote /home/dick/emacs/.git/COMMIT_EDITMSG
Git finished

Configured using:
 'configure --prefix=/home/dick/.local --with-rsvg=yes --with-xml2=yes'

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND DBUS GSETTINGS GLIB NOTIFY INOTIFY LIBSELINUX
GNUTLS LIBXML2 FREETYPE HARFBUZZ XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE
XIM MODULES THREADS JSON PDUMPER GMP

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Diff

Minor modes in effect:
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/home/dick/gomacro-mode/gomacro-mode hides /home/dick/.emacs.d/elpa/gomacro-mode-20200326.1103/gomacro-mode
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/home/dick/ESS/lisp/julia-mode hides /home/dick/.emacs.d/elpa/julia-mode-20200717.1915/julia-mode
/home/dick/.emacs.d/elpa/hydra-20170924.2259/lv hides /home/dick/.emacs.d/elpa/lv-20191106.1238/lv
/home/dick/melpa-stats/melpa-stats hides /home/dick/.emacs.d/elpa/melpa-stats-20190720.1833/melpa-stats
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/home/dick/.emacs.d/elpa/async-20200113.1745/dired-async hides /home/dick/.local/share/emacs/site-lisp/emacs-async/dired-async
/home/dick/.emacs.d/elpa/async-20200113.1745/async hides /home/dick/.local/share/emacs/site-lisp/emacs-async/async
/home/dick/.emacs.d/elpa/async-20200113.1745/async-pkg hides /home/dick/.local/share/emacs/site-lisp/emacs-async/async-pkg
/home/dick/.emacs.d/lisp/json hides /home/dick/.local/share/emacs/27.1.50/lisp/json
/home/dick/.emacs.d/elpa/map-2.1/map hides /home/dick/.local/share/emacs/27.1.50/lisp/emacs-lisp/map

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This bug report was last modified 4 years and 128 days ago.

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