#!/bin/sh

#   renderhighres - put activation results on the highres image
#
#   Stephen Smith and Mark Jenkinson, FMRIB Image Analysis Group
#
#   Copyright (C) 1999-2008 University of Oxford
#
#   Part of FSL - FMRIB's Software Library
#   http://www.fmrib.ox.ac.uk/fsl
#   fsl@fmrib.ox.ac.uk
#   
#   Developed at FMRIB (Oxford Centre for Functional Magnetic Resonance
#   Imaging of the Brain), Department of Clinical Neurology, Oxford
#   University, Oxford, UK
#   
#   
#   LICENCE
#   
#   FMRIB Software Library, Release 5.0 (c) 2012, The University of
#   Oxford (the "Software")
#   
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#   University").
#   
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Usage() {
    echo "Usage: renderhighres <feat_directory> <space> <background> <autothresh> [minZ maxZ]"
    echo "<space>: either highres or standard"
    echo "<background>: either highres or standard"
    echo "<autothresh>: either 0 or 1 (colour-code using existing post-threshold range? If 0 then minZ and maxZ are used)"
    echo ""
    exit 1
}

[ "$4" = "" ] && Usage
[ "$4" = "0" ] && [ "$6" = "" ] && Usage

cd $1

space=$2
background=$3
autothresh=$4

if [ `${FSLDIR}/bin/imtest reg/$space` != 1 ] ; then
    echo "Can't use $space for output space - doesn't exist in the FEAT registration output"
    exit 1
fi

if [ `${FSLDIR}/bin/imtest reg/$background` != 1 ] ; then
    echo "Can't use $background for background image - doesn't exist in the FEAT registration output"
    exit 1
fi

/bin/rm -rf hr
mkdir hr
cd hr

if [ $background != $space ] ; then
    if [ `${FSLDIR}/bin/imtest ../reg/highres2standard_warp` = 1 ] ; then
	if [ $background = standard ] ; then
	    ${FSLDIR}/bin/invfeatreg ..
	    ${FSLDIR}/bin/applywarp --ref=../reg/highres --in=../reg/standard --out=background --warp=../reg/highres2standard_warp_inv --interp=spline
	else
	    ${FSLDIR}/bin/applywarp --ref=../reg/standard --in=../reg/highres --out=background --warp=../reg/highres2standard_warp --interp=spline
	fi
    else
	${FSLDIR}/bin/flirt -in ../reg/$background -out background -ref ../reg/$space -applyxfm -init ../reg/${background}2${space}.mat -interp sinc -sincwidth 7 -sincwindow hanning
    fi
else
    ${FSLDIR}/bin/imcp ../reg/$space background
fi

for f in `cd .. ; ${FSLDIR}/bin/imglob thresh_*.*` ; do
    f=`${FSLDIR}/bin/remove_ext $f`

    if [ $space = standard ] && [ `${FSLDIR}/bin/imtest ../reg/highres2standard_warp` = 1 ] ; then
	${FSLDIR}/bin/applywarp --ref=../reg/standard --in=../$f --out=$f --warp=../reg/highres2standard_warp --premat=../reg/example_func2highres.mat --interp=spline
    else
	${FSLDIR}/bin/flirt -in ../$f -out $f -ref ../reg/$space -applyxfm -init ../reg/example_func2${space}.mat -interp sinc -sincwidth 7 -sincwindow hanning
    fi

    if [ $autothresh = 1 ] ; then
	minZ=`${FSLDIR}/bin/fslstats ../$f -l 0.01 -R | awk '{print $1}'`
	maxZ=`${FSLDIR}/bin/fslstats ../$f         -R | awk '{print $2}'`
    else
	minZ=$5
	maxZ=$6
    fi

    ${FSLDIR}/bin/overlay 1 1 background -a $f $minZ $maxZ rendered_$f
    ${FSLDIR}/bin/slicer rendered_$f -S 2 900 rendered_${f}.png
done