texlive[43637] Build/source/texk/web2c/pdftexdir:

[commits+kakuto at tug.org]

Revision: 43637
          http://tug.org/svn/texlive?view=revision&revision=43637
Author:   kakuto
Date:     2017-03-29 08:07:50 +0200 (Wed, 29 Mar 2017)
Log Message:
-----------
pdftexdir/writepng.c: Fix the size of memory to allocate when writing SMask in write_png_rgb_alpha (from  David Fifield)

Modified Paths:
--------------
    trunk/Build/source/texk/web2c/pdftexdir/ChangeLog
    trunk/Build/source/texk/web2c/pdftexdir/writepng.c

Modified: trunk/Build/source/texk/web2c/pdftexdir/ChangeLog
===================================================================
--- trunk/Build/source/texk/web2c/pdftexdir/ChangeLog	2017-03-29 00:05:52 UTC (rev 43636)
+++ trunk/Build/source/texk/web2c/pdftexdir/ChangeLog	2017-03-29 06:07:50 UTC (rev 43637)
@@ -1,3 +1,9 @@
+2017-03-29  Akira Kakuto  <kakuto at fuk.kindai.ac.jp>
+
+	* writepng.c: Fix the size of memory to allocate when writing
+	SMask in write_png_rgb_alpha. Reported by David Fifield:
+	http://tug.org/pipermail/pdftex/2017-March/009100.html.
+
 2017-03-18  Karl Berry  <karl at tug.org>
 
 	* NEWS,

Modified: trunk/Build/source/texk/web2c/pdftexdir/writepng.c
===================================================================
--- trunk/Build/source/texk/web2c/pdftexdir/writepng.c	2017-03-29 00:05:52 UTC (rev 43636)
+++ trunk/Build/source/texk/web2c/pdftexdir/writepng.c	2017-03-29 06:07:50 UTC (rev 43637)
@@ -335,7 +335,7 @@
     pdfcreateobj(0, 0);
     smask_objnum = objptr;
     pdf_printf("/SMask %i 0 R\n", (int) smask_objnum);
-    smask_size = (png_get_rowbytes(png_ptr(img), png_info(img)) / 2)
+    smask_size = (png_get_rowbytes(png_ptr(img), png_info(img)) / 4)
                  * png_get_image_height(png_ptr(img), png_info(img));
     smask = xtalloc(smask_size, png_byte);
     pdfbeginstream();