# $Id$
# Maintainer: Ray Rashif <schiv@archlinux.org>
# Contributor: Tobias Powalowski <tpowa@archlinux.org>

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - remove intel-tbb depend for v5 and v6
#  - depend on protobuf to skip building old, broken, bundled version

pkgbase=opencv
pkgname=('opencv' 'opencv-samples')
pkgver=3.4.1
pkgrel=1
pkgdesc="Open Source Computer Vision Library"
arch=('x86_64')
license=('BSD')
url="http://opencv.org/"
depends=('openexr' 'xine-lib' 'libdc1394' 'gtkglext' 'protobuf' 'cblas' 'lapack' 'libgphoto2')
depends_armv7h=('intel-tbb')
depends_aarch64=('intel-tbb')
makedepends=('cmake' 'python-numpy' 'python2-numpy' 'mesa' 'eigen' 'hdf5' 'lapacke')
optdepends=('opencv-samples'
            'hdf5: support for HDF5 format'
            'opencl-icd-loader: For coding with OpenCL'
            'python-numpy: Python 3 interface'
            'python2-numpy: Python 2 interface')
source=("$pkgbase-$pkgver.tar.gz::https://github.com/opencv/opencv/archive/$pkgver.zip"
        "opencv_contrib-$pkgver.tar.gz::https://github.com/opencv/opencv_contrib/archive/$pkgver.tar.gz")
sha256sums=('24bda432eaace9e992322dcc3d30144cefa5314c2424d4aa02e5fe3fa9dd17bd'
            '298c69ee006d7675e1ff9d371ba8b0d9e7e88374bb7ba0f9d0789851d352ec6e')

_cmakeopts=('-D WITH_OPENCL=ON'
            '-D WITH_OPENGL=ON'
            '-D WITH_TBB=ON'
            '-D WITH_XINE=ON'
            '-D WITH_GSTREAMER=OFF'
            '-D BUILD_WITH_DEBUG_INFO=OFF'
            '-D BUILD_TESTS=OFF'
            '-D BUILD_PERF_TESTS=OFF'
            '-D BUILD_EXAMPLES=ON'
            '-D INSTALL_C_EXAMPLES=ON'
            '-D INSTALL_PYTHON_EXAMPLES=ON'
            '-D CMAKE_BUILD_TYPE=Release'
            '-D CMAKE_INSTALL_PREFIX=/usr'
            '-D CMAKE_INSTALL_LIBDIR=lib'
            '-D CMAKE_SKIP_RPATH=ON'
            #'-D WITH_IPP=ON'
            #'-D INSTALL_CREATE_DISTRIB=ON'
            )

build() {
  mkdir -p build

  cd build
  # cmake's FindLAPACK doesn't add cblas to LAPACK_LIBRARIES, so we need to specify them manually
  cmake ${_cmakeopts[@]} \
    -DOPENCV_EXTRA_MODULES_PATH="$srcdir/opencv_contrib-$pkgver/modules" \
    -DLAPACK_LIBRARIES="/usr/lib/liblapack.so;/usr/lib/libblas.so;/usr/lib/libcblas.so" \
    -DLAPACK_CBLAS_H="/usr/include/cblas.h" \
    -DLAPACK_LAPACKE_H="/usr/include/lapacke.h" \
    ../$pkgname-$pkgver
  make
}

package_opencv() {
  options=('staticlibs')

  cd build
  make DESTDIR="$pkgdir" install

  # install license file
  install -Dm644 "$srcdir/$pkgname-$pkgver/LICENSE" \
    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"

  cd "$pkgdir/usr/share"

  # separate samples package; also be -R friendly
  if [[ -d OpenCV/samples ]]; then
    mv OpenCV/samples "$srcdir/$pkgname-samples"
    mv OpenCV $pkgname # otherwise folder naming is inconsistent
  elif [[ ! -d OpenCV ]]; then
    warning "Directory naming issue; samples package may not be built!"
  fi
}

package_opencv-samples() {
  pkgdesc+=" (samples)"
  depends=("opencv=$pkgver") # sample codes change with lib/API
  unset optdepends

  mkdir -p "$pkgdir/usr/share/opencv"
  cp -r "$srcdir/opencv-samples" "$pkgdir/usr/share/opencv/samples"
  # fix permissions
  chmod 755 "$pkgdir"/usr/share/opencv/samples/*

  # install license file
  install -Dm644 "$srcdir/opencv-$pkgver/LICENSE" \
    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
}

# vim:set ts=2 sw=2 et: