# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4

PortSystem          1.0
PortGroup           compiler_blacklist_versions 1.0
PortGroup           conflicts_build 1.0
PortGroup           muniversal 1.0

name                libvpx
conflicts           libvpx-devel
set my_name         libvpx
version             1.13.1
revision            0

categories          multimedia
license             Permissive
maintainers         {mascguy @mascguy} openmaintainer

description         WebM VP8/VP9 Codec SDK
long_description    The WebM VP8/VP9 codecs are being developed \
                    specifically to meet the demand for the consumption \
                    of video over the Internet, including professionally \
                    and amateur produced video-on-demand and conversational \
                    video content. VP9 is an evolution of the VP8 video \
                    codec and includes a number of enhancements and new \
                    coding tools that have been added to improve coding efficiency. \
                    The VP9 encoder in this release is not, as yet, feature complete.
homepage            http://webmproject.org/tools/

distname            ${my_name}-${version}
dist_subdir         ${my_name}

# use git fetch rather than downloading a snapshot tarball
# which delivers a different checksum and size on each download
# this is not a stealth upgrade but a "feature" of this repo

fetch.type          git
git.url             https://chromium.googlesource.com/webm/${my_name}
git.branch          v${version}

# upstream support for non-intel archs removed in version 1.5.0
supported_archs     x86_64 i386 arm64 ppc ppc64

patchfiles-append   patch-Makefile.diff
patchfiles-append   patch-configure.sh.diff

# requires c++11 https://trac.macports.org/ticket/67038
compiler.cxx_standard 2011
# requires MacPorts c++11 flags explicitly added to ldflags https://trac.macports.org/ticket/67038
configure.ldflags-append \
                    {*}${configure.cxxflags}

# https://trac.macports.org/ticket/70989
conflicts_build     gtest

# Uses newer assembly features on Intel.
# Also blacklist clang 8, due to issues like:
#   error: use of undeclared identifier 'abs'
compiler.blacklist-append \
                    {*gcc-[3-4].*} {clang < 900} {macports-clang-3.*}

# As of 1.7.0: builds both static and shared libraries
# doesn't install docs or examples correctly, so disable them.
configure.args-append \
                    --disable-debug-libs \
                    --disable-install-docs \
                    --enable-examples \
                    --enable-experimental \
                    --enable-multithread \
                    --enable-pic \
                    --enable-postproc \
                    --enable-unit-tests \
                    --enable-vp8 \
                    --enable-vp9 \
                    --enable-vp9-highbitdepth

platform darwin {
    if {${build_arch} eq "ppc" || ${build_arch} eq "ppc64"} {
        # disable a wrong kind of abi
        patchfiles-append      patch-vpx_ports.diff
        # with shared enabled the build no longer fails
        configure.args-append  --enable-shared
    } else {
        configure.args-append  --enable-shared
    }
}

platform darwin 8 {
    depends_build-append  port:gmake
    build.cmd             ${prefix}/bin/gmake

    # Tiger Intel has some unique restrictions https://trac.macports.org/ticket/67041
    if {${configure.build_arch} in {i386 x86_64}} {
        compiler.blacklist-append macports-gcc-7
        configure.args-append --disable-libyuv
    }
}

build.target
build.args          verbose=1
destroot.args       verbose=1

if {"${configure.sdkroot}" eq ""} {
    configure.sdkroot "/"
}

if {${universal_possible} && [variant_isset universal]} {

    # universal build using muniversal portgroup

    foreach my_arch {i386 x86_64 arm64} {

        # strip the automatic setting of host
        set merger_host(${my_arch}) ""

        # force the target
        set merger_configure_args(${my_arch})     --force-target=${my_arch}-${os.platform}${os.major}-gcc

        # set LD
        set merger_configure_env(${my_arch})      LD=${configure.cc}
    }

    foreach my_arch {ppc ppc64} {

        set merger_host(${my_arch}) ""

        set merger_configure_args(${my_arch})     --force-target=generic-${os.platform}${os.major}-gcc

        set merger_configure_env(${my_arch})      LD=${configure.cc}
    }

    if {"x86_64" in ${configure.universal_archs} || "i386" in ${configure.universal_archs}} {
        depends_build-append  port:yasm
        depends_skip_archcheck-append yasm

        # for Intel archs, allow runtime cpu detection
        lappend merger_configure_args(i386)   --enable-runtime-cpu-detect
        lappend merger_configure_args(x86_64) --enable-runtime-cpu-detect

        # parses the assembly output by default even when emitting assembly
        if {[string match {*clang*} ${configure.compiler}]} {
            lappend merger_build_args(i386)   CFLAGS_S=-fno-integrated-as
            lappend merger_build_args(x86_64) CFLAGS_S=-fno-integrated-as
        }

    }

} else {

    # single-arch build
    
    # force the target: generic fix for PowerPC
    if {${build_arch} eq "ppc" || ${build_arch} eq "ppc64"} {
           configure.args-append --force-target=generic-${os.platform}${os.major}-gcc
    } else {
           configure.args-append --force-target=${configure.build_arch}-${os.platform}${os.major}-gcc
    }

    # set LD
    configure.env-append  LD=${configure.cc}

    if {${configure.build_arch} in {i386 x86_64}} {
        depends_build-append     port:yasm
        depends_skip_archcheck-append yasm

        configure.args-append    --enable-runtime-cpu-detect

        # parses the assembly output by default even when emitting assembly
        if {[string match {*clang*} ${configure.compiler}]} {
            build.args-append CFLAGS_S=-fno-integrated-as
        }
    }
}

# shared library uses relative path in install name
# override with absolute path
post-destroot {
    foreach f [glob ${destroot}${prefix}/lib/${my_name}.*.dylib] {
        system "install_name_tool -id [string map [list ${destroot} ""] ${f}] ${f}"
    }
    foreach f [glob ${destroot}${prefix}/bin/*] {
        system "install_name_tool -change \
        [lindex [split [glob ${destroot}${prefix}/lib/${my_name}.*.dylib] "/"] end] \
        [string map [list ${destroot} ""] [glob ${destroot}${prefix}/lib/${my_name}.*.dylib]] ${f}"
    }
}

test.run        yes
test.target     test

livecheck.type  regex
livecheck.url   https://chromium.googlesource.com/webm/${my_name}
livecheck.regex ">v(\\d+(?:\\.\\d+)*)<"