# Description: Open Source Computer Vision Library
# URL: https://opencv.org
# Maintainer: CRUX KDE Ports, kde-ports at crux dot nu
# Depends on: dlpack eigen ffmpeg flatbuffers jasper libgphoto2 libva libwebp openexr openjpeg2 protobuf python3-numpy
# Optional: cuda gphoto2 gst-plugins-bad gtk3 onetbb qt6-5compat tesseract v4l-utils vtk wayland

name=opencv
version=5.0.0
release=2
source=(https://github.com/$name/$name/archive/$version/$name-$version.tar.gz
    https://github.com/opencv/opencv_contrib/archive/$version/opencv_contrib-$version.tar.gz
    opencv-4.10.0-tbb-detection.patch
    opencv-4.13.0-use-system-flatbuffers.patch
    libpng.patch
    fix-dnn-umat-dimensions.patch
    fix-cuda-flags.patch
    vtk9.patch
    ffmpeg-9.patch)

build() {
    [[ ! -e $PKGMK_SOURCE_DIR/opencv ]] && mkdir $PKGMK_SOURCE_DIR/opencv

    prt-get isinst gphoto2 && PKGMK_OPENCV+=' -D WITH_GPHOTO2=ON'
    prt-get isinst gst-plugins-bad && PKGMK_OPENCV+=' -D WITH_GSTREAMER=ON'
    prt-get isinst gtk3 && PKGMK_OPENCV+=' -D WITH_GTK=ON'
    prt-get isinst openmp && PKGMK_OPENCV+=' -D WITH_OPENMP=ON'
    prt-get isinst qt6-5compat && PKGMK_OPENCV+=' -D WITH_QT=ON'
    #prt-get isinst onetbb && PKGMK_OPENCV+=' -D WITH_TBB=ON'
    prt-get isinst v4l-utils && PKGMK_OPENCV+=' -D WITH_V4L=ON'
    prt-get isinst wayland && PKGMK_OPENCV+=' -D WITH_WAYLAND=ON'

    sed -i 's/add_definitions(${Qt${QT_VERSION_MAJOR}${dt_dep}_DEFINITIONS})/link_libraries(${Qt${QT_VERSION_MAJOR}${dt_dep}})/' \
        $name-$version/modules/highgui/CMakeLists.txt


    patch -Np1 -d $name-$version -i $SRC/libpng.patch
    patch -Np1 -d $name-$version -i $SRC/vtk9.patch
    patch -Np1 -d $name-$version -i $SRC/opencv-4.10.0-tbb-detection.patch
    patch -Np1 -d $name-$version -i $SRC/opencv-4.13.0-use-system-flatbuffers.patch
    patch -Np1 -d $name-$version -i $SRC/fix-dnn-umat-dimensions.patch
    patch -Np1 -d $name-$version -i $SRC/fix-cuda-flags.patch
    patch -Np1 -d $name-$version -i $SRC/ffmpeg-9.patch

    cmake -S $name-$version -B build -G Ninja $PKGMK_OPENCV \
        -D CMAKE_INSTALL_PREFIX=/usr \
        -D CMAKE_INSTALL_LIBDIR=lib \
        -D CMAKE_BUILD_TYPE=Release \
        -D CMAKE_CXX_FLAGS_RELEASE="$CXXFLAGS" \
        -D CMAKE_C_FLAGS_RELEASE="$CFLAGS" \
        -D CMAKE_POLICY_DEFAULT_CMP0148="OLD" \
        -D CMAKE_CXX_STANDARD=17 \
        -D ENABLE_LTO=ON \
        -D CMAKE_FIND_PACKAGE_PREFER_CONFIG=ON \
        -D OPENCV_DOWNLOAD_PATH=$PKGMK_SOURCE_DIR/opencv \
        -D WITH_FLATBUFFERS=ON \
        -D OPENCV_EXTRA_MODULES_PATH=$SRC/${name}_contrib-$version/modules \
        -D WITH_OPENGL=ON \
        -D OpenGL_GL_PREFERENCE=GLVND \
        -D OPENCV_GENERATE_PKGCONFIG=ON \
        -D BUILD_PROTOBUF=ON \
        -D PROTOBUF_UPDATE_FILES=OFF \
        -D OPENCV_MATHJAX_RELPATH=/usr/share/mathjax \
        -D OPENCV_SKIP_PYTHON_LOADER=OFF \
        -D BUILD_TESTS=OFF \
        -D BUILD_TESTING=OFF \
        -D BUILD_PERF_TESTS=OFF \
        -D BUILD_WITH_DEBUG_INFO=OFF \
        -D BUILD_EXAMPLES=OFF \
        -D INSTALL_C_EXAMPLES=OFF \
        -D INSTALL_PYTHON_EXAMPLES=OFF \
        -D PYTHON3_EXECUTABLE=/usr/bin/python3 \
        -D WITH_IPP=OFF \
        -D WITH_ITT=OFF \
        -D BUILD_opencv_hdf=OFF \
        -Wno-dev
        #-D protobuf_MODULE_COMPATIBLE=ON \

    cmake --build build
    DESTDIR=$PKG cmake --install build

    # python3 bindings
    cd build/python_loader
    /usr/bin/python3 setup.py install --root=$PKG
    rm -rf $PKG/usr/python

    rm -rf $PKG/usr/share/licenses
}

# vim: set ts=4 et: