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# $Id: PKGBUILD 287727 2017-01-29 17:55:00Z arojas $
# Maintainer (Arch): Ray Rashif <schiv@archlinux.org>
# Contributor (Arch): Tobias Powalowski <tpowa@archlinux.org>
# Contributor (Hyperbola): André Silva <emulatorman@hyperbola.info>
# Contributor (Hyperbola): Márcio Silva <coadde@hyperbola.info>
# Maintainer: Omar Vega Ramos <ovruni@gnu.org.pe>

pkgbase=opencv
pkgname=opencv
pkgver=3.4.1
pkgrel=3.parabola1
pkgdesc="Free Computer Vision Library, without nonfree SIFT and SURF algorithms, nonfree Milky icons and lena images"
arch=('i686' 'x86_64' 'armv7h')
license=('BSD')
url="http://opencv.org/"
depends=('intel-tbb' 'openexr' 'xine-lib' 'libdc1394' 'cblas' 'lapack' 'libgphoto2' 'jasper')
makedepends=('cmake' 'python-numpy' 'python2-numpy' 'mesa' 'eigen' 'hdf5' 'lapacke' 'gtkglext')
optdepends=('opencv-samples'
            'gtkglext: for the HighGUI module'
            'hdf5: support for HDF5 format'
            'opencl-icd-loader: For coding with OpenCL'
            'python-numpy: Python 3 interface'
            'python2-numpy: Python 2 interface')
mksource=("$pkgbase-$pkgver.zip::https://github.com/opencv/opencv/archive/$pkgver.zip"
          "opencv_contrib-$pkgver.tar.gz::https://github.com/opencv/opencv_contrib/archive/$pkgver.tar.gz")
source=("https://repo.parabola.nu/other/${pkgname}-libre/${pkgname}-libre-${pkgver}.zip")
mksha256sums=('24bda432eaace9e992322dcc3d30144cefa5314c2424d4aa02e5fe3fa9dd17bd'
              '298c69ee006d7675e1ff9d371ba8b0d9e7e88374bb7ba0f9d0789851d352ec6e')
sha256sums=('e5b34f29622d044e07163ed8d806bce5ff208531c1cdd5be24a9ec0255633396')

_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_INSTALL_PREFIX=/usr'
            '-D CMAKE_INSTALL_LIBDIR=lib'
            '-D WITH_IPP=OFF'
            )

# SSE only available from Pentium 3 onwards (i686 is way older)
# SSE only available x86 hardware and ARM uses NEON
[[ "$CARCH" = 'i686' ]] && _cmakeopts+=('-D CPU_BASELINE_DISABLE="SSE SSE2"')
[[ "$CARCH" = 'x86_64' ]] && _cmakeopts+=('-D CPU_BASELINE_DISABLE=SSE3 -D CPU_BASELINE_REQUIRE=SSE2')

mksource() {
  cd "$srcdir/opencv_contrib-$pkgver"

  # remove nonfree SIFT and SURF algorithms that are patented in some countries and have some other limitations on the use
  rm -v modules/xfeatures2d/src/{sift,surf}.cpp

  cd "$srcdir/$pkgname-$pkgver"

  # remove nonfree Milky icons
  rm -rv modules/highgui/src/files_Qt/Milky

  # remove nonfree lena.png and lena.jpg images
  rm -v $(find . -iname '*lena*')
}

prepare() {
  cd "$srcdir/opencv_contrib-$pkgver"

  # remove nonfree SIFT and SURF references
  rm -rv modules/xfeatures2d
}

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
    rm -r OpenCV/samples
    mv OpenCV $pkgname # otherwise folder naming is inconsistent
  elif [[ ! -d OpenCV ]]; then
    warning "Directory naming issue; samples package may not be built!"
  fi
}

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