#!/bin/sh -e
################################################################################
#
# This script compiles OSG and OSGEarth dependencies (GDAL, GEOS, ...)
#
# Known to work with MSYS 1.0.11
# A zip file is provided here http://librepilot.github.io/tools/MSYS-1.0.11.zip
# This zip is based on the official http://downloads.sourceforge.net/mingw/MSYS-1.0.11.exe
# It was generated by installing MSYS-1.0.11.exe and adding to it:
# - http://gnuwin32.sourceforge.net/packages/wget.htm
# - http://gnuwin32.sourceforge.net/packages/libintl.htm
# - http://gnuwin32.sourceforge.net/packages/libiconv.htm
# And finally zipping the resulting directory (minus Readme.txt)
#
# A good source for building with mingw :
#    http://www.gaia-gis.it/gaia-sins/mingw_how_to.html
#
# Sample command line to execute this script from a MS shell :
#     .\tools\msys\bin\sh --login -i -c /d/Projects/LibrePilot/make/3rdparty/osgearth/osg_win.sh
#
# Executing this script from git bash does not seem to work.
#
################################################################################

# turn -x on if DEBUG is set to a non-empty string
[ -n "$DEBUG" ] && set -x

################################################################################
# MinGW
################################################################################

#MINGW_DIR=D:/Projects/LibrePilotTools/qt-5.4.1/Tools/mingw491_32
if [ -z "$MINGW_DIR" ]; then
	echo MINGW_DIR not defined. Exiting...
	exit 1
fi

umount /mingw || true
mount $MINGW_DIR /mingw

################################################################################
# Environment
################################################################################

BASE_DIR=$(dirname $0)

WORK_DIR=$BASE_DIR
ROOT_DIR=$BASE_DIR/../../..

DOWNLOAD_DIR=$ROOT_DIR/downloads/osg
SOURCE_DIR=$ROOT_DIR/3rdparty/osg_dependencies
BUILD_DIR=$ROOT_DIR/build/3rdparty/osg_dependencies

HOST=mingw32

DOWNLOAD_FILES=1

echo Root dir  : $ROOT_DIR
echo Work dir  : $WORK_DIR
echo Build dir : $BUILD_DIR
echo MinGW dir : $MINGW_DIR

################################################################################
# download sources
################################################################################

if [ "$DOWNLOAD_FILES" -eq 1 ]; then

SRC_FILES="
http://pkgconfig.freedesktop.org/releases/pkg-config-0.28.tar.gz
http://zlib.net/zlib-1.2.8.tar.gz
http://www.ijg.org/files/jpegsrc.v9a.tar.gz
http://sourceforge.net/projects/libpng/files/libpng16/older-releases/1.6.16/libpng-1.6.16.tar.gz
ftp://ftp.remotesensing.org/pub/libtiff/tiff-4.0.3.tar.gz
http://sourceforge.net/projects/freetype/files/freetype2/2.5.3/freetype-2.5.3.tar.gz
http://curl.haxx.se/download/curl-7.38.0.tar.gz
http://download.osgeo.org/proj/proj-4.8.0.tar.gz
http://download.osgeo.org/proj/proj-datumgrid-1.5.tar.gz
http://download.osgeo.org/geos/geos-3.3.8.tar.bz2
http://download.osgeo.org/gdal/1.10.1/gdal-1.10.1.tar.gz
"

mkdir -p $DOWNLOAD_DIR/
for f in $SRC_FILES
do
    filename=$(basename "$f")
    if [ ! -f $DOWNLOAD_DIR/$filename ]; then
        echo "****************************************"
        echo "Downloading $filename"
        echo "****************************************"
        wget -P $DOWNLOAD_DIR/ $f
    fi
done

fi

################################################################################
# build all
################################################################################

# list of libraries to build
# other candidates include bzip2, libxml2, gif, geotiff, ssl, gl...
BUILD_PKGCONFIG=1
BUILD_ZLIB=1
BUILD_LIBJPEG=1
BUILD_LIBPNG=1
BUILD_LIBTIFF=1
BUILD_FREETYPE=1
BUILD_OPENSSL=2
BUILD_CURL=1
BUILD_PROJ4=1
BUILD_GEOS=1
BUILD_GDAL=1

# TODO
#  libcurl needs to be built with and ssl support
#  gdal does not seem to link with shared proj4

# Clean src and build dirs
rm -rf $SOURCE_DIR/*
rm -rf $BUILD_DIR/*

mkdir -p $SOURCE_DIR/
mkdir -p $BUILD_DIR/
mkdir -p $BUILD_DIR/bin/
mkdir -p $BUILD_DIR/include/
mkdir -p $BUILD_DIR/lib/

# make sure all libraries see each others
export PATH=$BUILD_DIR/bin:$PATH
export CPATH=$BUILD_DIR/include
export LIBRARY_PATH=$BUILD_DIR/lib
export PKG_CONFIG_PATH=$BUILD_DIR/lib/pkgconfig

# compiler flags
export CFLAGS=-O2
export CXXFLAGS=-O2

################################################################################
# pkg-config
# required by libcurl, gdal, osg, osgearth
################################################################################

if [ "$BUILD_PKGCONFIG" -eq 1 ]; then

echo "****************************************"
echo "Building pkg-config..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/pkg-config-0.28.tar.gz -C .
cd pkg-config-0.28

./configure --prefix=$BUILD_DIR --build=$HOST \
  --with-internal-glib
make
make install

fi

################################################################################
# ZLIB
# required by libcurl, gdal, osg, osgearth
################################################################################

if [ "$BUILD_ZLIB" -eq 1 ]; then

echo "****************************************"
echo "Building zlib..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/zlib-1.2.8.tar.gz -C .
cd zlib-1.2.8

make -f win32/Makefile.gcc clean
make -f win32/Makefile.gcc

cp -f zlib1.dll $BUILD_DIR/bin/
cp -f zconf.h $BUILD_DIR/include/
cp -f zlib.h $BUILD_DIR/include/
cp -f libz.a $BUILD_DIR/lib/
cp -f libz.dll.a $BUILD_DIR/lib/

fi

################################################################################
# LIBJPEG
# required by gdal, osg, osgearth
################################################################################

if [ "$BUILD_LIBJPEG" -eq 1 ]; then

echo "****************************************"
echo "Building libjpeg..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/jpegsrc.v9a.tar.gz -C .
cd jpeg-9a

./configure --prefix=$BUILD_DIR --build=$HOST
make
make install-strip

fi

################################################################################
# LIBPNG
# required by gdal, osg, osgearth
################################################################################

if [ "$BUILD_LIBPNG" -eq 1 ]; then

echo "****************************************"
echo "Building libpng..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/libpng-1.6.16.tar.gz -C .
cd libpng-1.6.16

./configure --prefix=$BUILD_DIR --build=$HOST
make
make install-strip

fi

################################################################################
# LIBTIFF
# reqires zlib
# required by gdal, osg, osgearth
################################################################################

if [ "$BUILD_LIBTIFF" -eq 1 ]; then

echo "****************************************"
echo "Building libtiff..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/tiff-4.0.3.tar.gz -C .
cd tiff-4.0.3

./configure --prefix=$BUILD_DIR --build=$HOST
make
make install-strip

fi

################################################################################
# FreeType
################################################################################

if [ "$BUILD_FREETYPE" -eq 1 ]; then

echo "****************************************"
echo "Building FreeType..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/freetype-2.5.3.tar.gz -C .
cd freetype-2.5.3

./configure --prefix=$BUILD_DIR
make
make install

fi

################################################################################
# OpenSSL
################################################################################

if [ "$BUILD_OPENSSL" -eq 1 ]; then

echo "****************************************"
echo "Building OpenSSL..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/curl-7.38.0.tar.gz -C .
cd curl-7.38.0

./configure --prefix=$BUILD_DIR --build=$HOST
make
make install

fi

################################################################################
# cURL
# required by gdal, osgearth
################################################################################

if [ "$BUILD_CURL" -eq 1 ]; then

echo "****************************************"
echo "Building cURL..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/curl-7.38.0.tar.gz -C .
cd curl-7.38.0

./configure --prefix=$BUILD_DIR --build=$HOST \
  --enable-shared=yes --with-zlib=$BUILD_DIR
make
make install-strip

fi

################################################################################
# PROJ.4
# required by osgearth
################################################################################

if [ "$BUILD_PROJ4" -eq 1 ]; then

echo "****************************************"
echo "Building PROJ.4..."
echo "****************************************"

cd $SOURCE_DIR
tar -xzf $DOWNLOAD_DIR/proj-4.8.0.tar.gz -C .
tar -xzf $DOWNLOAD_DIR/proj-datumgrid-1.5.tar.gz -C proj-4.8.0/nad/
cd proj-4.8.0

./configure --prefix=$BUILD_DIR --build=$HOST \
  --enable-static=no --enable-shared=yes
make
make install

fi

################################################################################
# GEOS
# required by gdal
################################################################################

if [ "$BUILD_GEOS" -eq 1 ]; then

echo "****************************************"
echo "Building GEOS..."
echo "****************************************"

cd $SOURCE_DIR
tar xjf $DOWNLOAD_DIR/geos-3.3.8.tar.bz2 -C .
cd geos-3.3.8

# TODO why --disable-inline?
./configure --prefix=$BUILD_DIR --build=$HOST \
  --enable-static=no --enable-shared=yes --disable-inline
make
make install

fi

################################################################################
# GDAL
# requires zlib, libcurl, libpng, libjpeg, libtiff, geos
# required by osgearth
################################################################################

if [ "$BUILD_GDAL" -eq 1 ]; then

echo "****************************************"
echo "Building GDAL..."
echo "****************************************"

cd $SOURCE_DIR
tar xzf $DOWNLOAD_DIR/gdal-1.10.1.tar.gz -C .
cd gdal-1.10.1

# fix GNUmakefile as described here http://trac.osgeo.org/gdal/wiki/BuildingWithMinGW
patch < $WORK_DIR/gdal_GNUmakefile_fix.patch

./configure --prefix=$BUILD_DIR --build=$HOST \
  --without-python --without-libtool \
  --with-xerces=no \
  --with-libz=$BUILD_DIR --with-curl=$BUILD_DIR \
  --with-png=$BUILD_DIR --with-jpeg=$BUILD_DIR --with-libtiff=$BUILD_DIR \
  --with-geos=$BUILD_DIR/bin/geos-config
make
make install

fi