texlive[47469] Build/source/texk/dvipdfm-x: dvipdfm-x: Fix a bug
commits+kakuto at tug.org
commits+kakuto at tug.org
Sat Apr 28 08:09:57 CEST 2018
Revision: 47469
http://tug.org/svn/texlive?view=revision&revision=47469
Author: kakuto
Date: 2018-04-28 08:09:56 +0200 (Sat, 28 Apr 2018)
Log Message:
-----------
dvipdfm-x: Fix a bug which causes a segfault with 1/2/4-bit transparent indexed PNGs (Stefun Br\"uns).
Modified Paths:
--------------
trunk/Build/source/texk/dvipdfm-x/ChangeLog
trunk/Build/source/texk/dvipdfm-x/configure
trunk/Build/source/texk/dvipdfm-x/configure.ac
trunk/Build/source/texk/dvipdfm-x/pngimage.c
Modified: trunk/Build/source/texk/dvipdfm-x/ChangeLog
===================================================================
--- trunk/Build/source/texk/dvipdfm-x/ChangeLog 2018-04-28 02:01:24 UTC (rev 47468)
+++ trunk/Build/source/texk/dvipdfm-x/ChangeLog 2018-04-28 06:09:56 UTC (rev 47469)
@@ -1,3 +1,9 @@
+2018-04-28 Stefun Br\"uns <stefan.bruens at rwth-aachen.de>
+
+ * pngimage.c: Fix a bug which causes a segfault with 1/2/4-bit
+ transparent indexed PNGs.
+ * configure.ac: Version 20180428.
+
2018-03-03 Akira Kakuto <kakuto at fuk.kindai.ac.jp>
* xbb.c: Remove unused lines.
Modified: trunk/Build/source/texk/dvipdfm-x/configure
===================================================================
--- trunk/Build/source/texk/dvipdfm-x/configure 2018-04-28 02:01:24 UTC (rev 47468)
+++ trunk/Build/source/texk/dvipdfm-x/configure 2018-04-28 06:09:56 UTC (rev 47469)
@@ -1,6 +1,6 @@
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for dvipdfm-x (TeX Live) 20180217.
+# Generated by GNU Autoconf 2.69 for dvipdfm-x (TeX Live) 20180428.
#
# Report bugs to <tex-k at tug.org>.
#
@@ -590,8 +590,8 @@
# Identity of this package.
PACKAGE_NAME='dvipdfm-x (TeX Live)'
PACKAGE_TARNAME='dvipdfm-x--tex-live-'
-PACKAGE_VERSION='20180217'
-PACKAGE_STRING='dvipdfm-x (TeX Live) 20180217'
+PACKAGE_VERSION='20180428'
+PACKAGE_STRING='dvipdfm-x (TeX Live) 20180428'
PACKAGE_BUGREPORT='tex-k at tug.org'
PACKAGE_URL=''
@@ -1350,7 +1350,7 @@
# Omit some internal or obsolete options to make the list less imposing.
# This message is too long to be a string in the A/UX 3.1 sh.
cat <<_ACEOF
-\`configure' configures dvipdfm-x (TeX Live) 20180217 to adapt to many kinds of systems.
+\`configure' configures dvipdfm-x (TeX Live) 20180428 to adapt to many kinds of systems.
Usage: $0 [OPTION]... [VAR=VALUE]...
@@ -1421,7 +1421,7 @@
if test -n "$ac_init_help"; then
case $ac_init_help in
- short | recursive ) echo "Configuration of dvipdfm-x (TeX Live) 20180217:";;
+ short | recursive ) echo "Configuration of dvipdfm-x (TeX Live) 20180428:";;
esac
cat <<\_ACEOF
@@ -1551,7 +1551,7 @@
test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
cat <<\_ACEOF
-dvipdfm-x (TeX Live) configure 20180217
+dvipdfm-x (TeX Live) configure 20180428
generated by GNU Autoconf 2.69
Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2390,7 +2390,7 @@
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
-It was created by dvipdfm-x (TeX Live) $as_me 20180217, which was
+It was created by dvipdfm-x (TeX Live) $as_me 20180428, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ $0 $@
@@ -8075,7 +8075,7 @@
# Define the identity of the package.
PACKAGE='dvipdfm-x--tex-live-'
- VERSION='20180217'
+ VERSION='20180428'
cat >>confdefs.h <<_ACEOF
@@ -14744,7 +14744,7 @@
Report bugs to <bug-libtool at gnu.org>."
lt_cl_version="\
-dvipdfm-x (TeX Live) config.lt 20180217
+dvipdfm-x (TeX Live) config.lt 20180428
configured by $0, generated by GNU Autoconf 2.69.
Copyright (C) 2011 Free Software Foundation, Inc.
@@ -16624,7 +16624,7 @@
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
-This file was extended by dvipdfm-x (TeX Live) $as_me 20180217, which was
+This file was extended by dvipdfm-x (TeX Live) $as_me 20180428, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG_FILES = $CONFIG_FILES
@@ -16694,7 +16694,7 @@
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
-dvipdfm-x (TeX Live) config.status 20180217
+dvipdfm-x (TeX Live) config.status 20180428
configured by $0, generated by GNU Autoconf 2.69,
with options \\"\$ac_cs_config\\"
Modified: trunk/Build/source/texk/dvipdfm-x/configure.ac
===================================================================
--- trunk/Build/source/texk/dvipdfm-x/configure.ac 2018-04-28 02:01:24 UTC (rev 47468)
+++ trunk/Build/source/texk/dvipdfm-x/configure.ac 2018-04-28 06:09:56 UTC (rev 47469)
@@ -7,7 +7,7 @@
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl
-AC_INIT([dvipdfm-x (TeX Live)], [20180217], [tex-k at tug.org])
+AC_INIT([dvipdfm-x (TeX Live)], [20180428], [tex-k at tug.org])
AC_PREREQ([2.65])
AC_CONFIG_SRCDIR([agl.c])
AC_CONFIG_AUX_DIR([../../build-aux])
Modified: trunk/Build/source/texk/dvipdfm-x/pngimage.c
===================================================================
--- trunk/Build/source/texk/dvipdfm-x/pngimage.c 2018-04-28 02:01:24 UTC (rev 47468)
+++ trunk/Build/source/texk/dvipdfm-x/pngimage.c 2018-04-28 06:09:56 UTC (rev 47469)
@@ -964,6 +964,7 @@
png_bytep trans;
int num_trans;
png_uint_32 i;
+ png_byte bpc, mask, shift;
if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
!png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
@@ -970,6 +971,9 @@
WARN("%s: PNG does not have valid tRNS chunk but tRNS is requested.", PNG_DEBUG_STR);
return NULL;
}
+ bpc = png_get_bit_depth(png_ptr, info_ptr);
+ mask = 0xff >> (8 - bpc);
+ shift = 8 - bpc;
smask = pdf_new_stream(STREAM_COMPRESS);
dict = pdf_stream_dict(smask);
@@ -981,7 +985,8 @@
pdf_add_dict(dict, pdf_new_name("ColorSpace"), pdf_new_name("DeviceGray"));
pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(8));
for (i = 0; i < width*height; i++) {
- png_byte idx = image_data_ptr[i];
+ /* data is packed for 1/2/4 bpc formats, msb first */
+ png_byte idx = (image_data_ptr[bpc * i / 8] >> (shift - bpc * i % 8)) & mask;
smask_data_ptr[i] = (idx < num_trans) ? trans[idx] : 0xff;
}
pdf_add_stream(smask, (char *)smask_data_ptr, width*height);
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