From 0fe6dede1786553182be4f8d11978ced3b7a5d10 Mon Sep 17 00:00:00 2001
From: Jon Portnoy <avenj@gentoo.org>
Date: Sun, 2 Mar 2003 18:16:18 +0000
Subject: Erm, forgot to cvs add the first time around...

---
 media-gfx/povray/files/prob-opt.sh | 78 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 media-gfx/povray/files/prob-opt.sh

(limited to 'media-gfx/povray')

diff --git a/media-gfx/povray/files/prob-opt.sh b/media-gfx/povray/files/prob-opt.sh
new file mode 100644
index 000000000000..0380da3a8643
--- /dev/null
+++ b/media-gfx/povray/files/prob-opt.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+# Script from Klaus-J. Wolf <yanestra@web.de>
+
+# Please read through this script and understand it before using it.
+# IF YOU DON'T UNDERSTAND IT, DON'T USE IT.
+# There are a few things you'll probably want to change - pay attention.
+# IMPORTANT: This will overwrite your Portage installation of POV-Ray.
+
+# Notes from Klaus-J. Wolf in bug report #13400:
+# "I have written a small script that does the lengthy work of
+# probabilistical optimization of Povray (3.50c tested, with gcc-3.2.1). 
+# In case of an Athlon/600 I got a performance improvement of about 272% 
+# to the original settings (ICC gave slightly worse results), in case of 
+# an P4/2000, I got less improvement, but still better than ICC.
+# The script uses all scene files of the original distribution (expected to be
+# unpacked in the current directory) to create probabilistic profiles. Then it
+# uses the profiles to recompile the source."
+
+# Change this:
+NAME="Me"
+
+PREFIX=/usr
+
+cat <<EOF
+Attention!
+You need to:
+
+1. Have the Povray sources unpacked in the (current) local directory.
+
+2. Have the necessary library files installed in $PREFIX.
+   (By typing "make install-data" in the povray dir.)
+
+EOF
+read -p "Press ENTER to continue. "
+cd povray-3.50a || exit 9
+
+INCLUDES="-I/usr/local/include -L/usr/local/lib -I/usr/X11R6/include -L/usr/X11R6/lib"
+# Edit these to match your system:
+MYCFLAGS="${INCLUDES} -Wno-multichar -O3 -ffast-math -march=i686 -mcpu=i686 -foptimize-sibling-calls -finline-functions -fexpensive-optimizations -funroll-loops -malign-double -minline-all-stringops -fomit-frame-pointer -mfpmath=sse -msse -msse2"
+
+MYCXXFLAGS="${MYCFLAGS}"
+PHASE1="-fprofile-arcs"
+PHASE2="-fbranch-probabilities"
+
+[ -f Makefile ] || ./configure --prefix=$PREFIX
+for a in `find . -name Makefile`
+do
+  [ -f $a~ ] || mv $a $a~
+  sed "s&^CFLAGS = .*&CFLAGS = $MYCFLAGS $PHASE1&1" <$a~ | \
+  sed "s&^CXXFLAGS = .*&CXXFLAGS = $MYCXXFLAGS $PHASE1&1" |
+  sed "s/^LIBS = \\(.*\\)/LIBS = \\1 -ljpeg -ltiff -lpng/1" >$a
+done
+
+AUTHFILE="src/optout.h"
+[ -f ${AUTHFILE}~ ] || mv $AUTHFILE ${AUTHFILE}~
+cat ${AUTHFILE}~ |grep -v '^#error' | \
+  sed "s/FILL IN NAME HERE\\.*/${NAME}/1" \
+  >$AUTHFILE
+
+make
+
+for a in `find scenes -name "*.pov"`
+do
+  src/povray +H200 +W320 +O`basename $a .pov`.png +I$a +QR -D -V
+done
+
+rm -f `find . -name "*.o" -type f`
+
+for a in `find . -name Makefile`
+do
+  [ -f $a~ ] || mv $a $a~
+  sed "s&^CFLAGS = .*&CFLAGS = $MYCFLAGS $PHASE2&1" <$a~ | \
+  sed "s&^CXXFLAGS = .*&CXXFLAGS = $MYCXXFLAGS $PHASE2&1" |
+  sed "s/^LIBS = \\(.*\\)/LIBS = \\1 -ljpeg -ltiff -lpng/1" >$a
+done
+
+make
+
-- 
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