parallelization of jpg-conversion to make use of multiple processors

[stereofy] / stereofy.sh

diff --git a/stereofy.sh b/stereofy.sh
index 919c2a8ae183353037ab4e7d4453c50d5cc4b503..51cbfb15c1579d9ed02deb0f08ddbc3e73f8ebd2 100755 (executable)
--- a/stereofy.sh
+++ b/stereofy.sh
@@ -1,7 +1,22 @@
 #!/bin/sh
+# Copyright 2011 Paul Hänsch
+# This file is part of Stereofy
+#
+# Stereofy is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Stereofy is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Stereofy.  If not, see <http://www.gnu.org/licenses/>.
 
 algo="d"   #algorythm, Dubois by default
-model="gm" #color model, green-magenta by default
+model="rc" #color model, red-cyan by default
 param=""   #leave blank, will be -$algo$model
 left=''
 right=''
@@ -9,22 +24,15 @@ stereo=''
 
 while [ -n "$1" ]; do
   case "$1" in
-    -d|--dubois]) algo="d"
-       ;;
-    -f|--full|--full-color]) algo="f"
-       ;;
-    -h|--half|--half-color]) algo="d"
-       ;;
-    -rc|--rc|--red-cyan) model="rc"
-       ;;
-    -mc|--mc|--magenta-cyan) model="mc"
-       ;;
-    -gm|--gm|--green-magenta) model="gm"
-       ;;
-    -ab|--ab|--amber-blue|yellow-blue) model="ab"
-       ;;
-    -[dfh]rc|-[dfh]gm|-[fd]mc|-dab) param="$1"
-       ;;
+    -d|--dubois) algo="d";;
+    -f|--full|--full-color) algo="f";;
+    -h|--half|--half-color) algo="d";;
+    -rc|--rc|--red-cyan) model="rc";;
+    -mc|--mc|--magenta-cyan) model="mc";;
+    -gm|--gm|--green-magenta) model="gm";;
+    -ab|--ab|--amber-blue|--yellow-blue) model="ab";;
+    -[dfh]rc|-[dfh]gm|-[fe]mc|-dab) param="$1";;
+    -*) echo "no such color model" >/dev/stderr; exit 1;;
     *)  if [ -z "$left" ]; then
          left="$1"
        elif [ -z "$right" ]; then
@@ -40,19 +48,15 @@ done
 [ -z "$param" ] && param="-$algo$model"
 [ -z "$stereo" ] && stereo="${left}_stereo.jpg"
 
+echo -n preparing...
 geom=$(identify "$left" |sed -rn 's:^.* ([0-9]+x[0-9]+) .*$:\1:gp')
+tmp=$(tempfile -d /tmp -p strfy)
+rm "$tmp"
+mkfifo "$tmp"
 
-echo -n bitmapping...
-stream "$left" "$left.bts"
-stream "$right" "$right.bts"
-
+convert "$left" rgb:- >"$tmp" &
 echo -n anaglyphing...
-anaglyph "$param" "$left.bts" "$right.bts" "$stereo.bts"
-
-if [ $? = 0 ]; then
-  echo -n converting...
-  convert -depth 8 -size "$geom" "rgb:$stereo.bts" "$stereo"
-fi
+convert "$right" rgb:- |anaglyph "$param" "$tmp" /dev/stdin /dev/stdout |convert -depth 8 -size "$geom" rgb:- "$stereo"
 
 echo cleaning...
-rm "$left.bts" "$right.bts" "$stereo.bts" 2>/dev/null
+rm "$tmp"