From f87f55b75da5f2764efcf62961aa8f52934967da Mon Sep 17 00:00:00 2001
From: David Michael <fedora.dm0@gmail.com>
Date: Sat, 29 May 2021 09:01:23 -0400
Subject: [PATCH] media-libs/libjpeg-turbo: fix SIMD

This adds CPU flags for each supported SIMD implementation.

arm: neon
ppc: altivec
x86: 3dnow avx2 mmx sse2

MIPS also has mmi and dspr2 support, but Gentoo doesn't have flags
for those.

This also drops the obsolete x32 workaround, and it fixes assembler
package detection to use BROOT.

Closes: https://bugs.gentoo.org/792810
Package-Manager: Portage-3.0.18, Repoman-3.0.2
Signed-off-by: David Michael <fedora.dm0@gmail.com>
---
 .../libjpeg-turbo-2.1.0-r2.ebuild             | 124 ++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild

diff --git a/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild b/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild
new file mode 100644
index 00000000000..66d5f79e60f
--- /dev/null
+++ b/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild
@@ -0,0 +1,124 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+inherit cmake-multilib java-pkg-opt-2
+
+DESCRIPTION="MMX, SSE, and SSE2 SIMD accelerated JPEG library"
+HOMEPAGE="https://libjpeg-turbo.org/ https://sourceforge.net/projects/libjpeg-turbo/"
+SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz
+	mirror://gentoo/libjpeg8_8d-2.debian.tar.gz"
+
+LICENSE="BSD IJG ZLIB"
+SLOT="0/0.2"
+if [[ "$(ver_cut 3)" -lt 90 ]] ; then
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris ~x86-solaris"
+fi
+IUSE="cpu_flags_arm_neon cpu_flags_ppc_altivec cpu_flags_x86_3dnow cpu_flags_x86_avx2 cpu_flags_x86_mmx cpu_flags_x86_sse2 java static-libs"
+
+ASM_DEPEND="|| ( dev-lang/nasm dev-lang/yasm )"
+
+COMMON_DEPEND="!media-libs/jpeg:0
+	!media-libs/jpeg:62"
+
+BDEPEND=">=dev-util/cmake-3.16.5
+	amd64? ( ${ASM_DEPEND} )
+	x86? ( ${ASM_DEPEND} )
+	amd64-fbsd? ( ${ASM_DEPEND} )
+	x86-fbsd? ( ${ASM_DEPEND} )
+	amd64-linux? ( ${ASM_DEPEND} )
+	x86-linux? ( ${ASM_DEPEND} )
+	x64-macos? ( ${ASM_DEPEND} )
+	x64-cygwin? ( ${ASM_DEPEND} )"
+
+DEPEND="${COMMON_DEPEND}
+	java? ( >=virtual/jdk-1.8:* )"
+
+RDEPEND="${COMMON_DEPEND}
+	java? ( >=virtual/jre-1.8:* )"
+
+MULTILIB_WRAPPED_HEADERS=( /usr/include/jconfig.h )
+
+src_prepare() {
+	local FILE
+	ln -snf ../debian/extra/*.c . || die
+
+	for FILE in ../debian/extra/*.c; do
+		FILE=${FILE##*/}
+		cat >> CMakeLists.txt <<EOF || die
+add_executable(${FILE%.c} ${FILE})
+install(TARGETS ${FILE%.c})
+EOF
+	done
+
+	for FILE in ../debian/extra/exifautotran; do
+		cat >> CMakeLists.txt <<EOF || die
+install(FILES \${CMAKE_CURRENT_SOURCE_DIR}/${FILE} DESTINATION \${CMAKE_INSTALL_BINDIR})
+EOF
+	done
+
+	for FILE in ../debian/extra/*.[0-9]*; do
+		cat >> CMakeLists.txt <<EOF || die
+install(FILES \${CMAKE_CURRENT_SOURCE_DIR}/${FILE} DESTINATION \${CMAKE_INSTALL_MANDIR}/man${FILE##*.})
+EOF
+	done
+
+	cmake_src_prepare
+	java-pkg-opt-2_src_prepare
+}
+
+multilib_src_configure() {
+	if multilib_is_native_abi && use java ; then
+		export JAVACFLAGS="$(java-pkg_javac-args)"
+		export JNI_CFLAGS="$(java-pkg_get-jni-cflags)"
+	fi
+
+	local mycmakeargs=(
+		-DCMAKE_INSTALL_DEFAULT_DOCDIR="${EPREFIX}/usr/share/doc/${PF}"
+		-DENABLE_STATIC="$(usex static-libs)"
+		-DWITH_JAVA="$(multilib_native_usex java)"
+		-DWITH_MEM_SRCDST=ON
+	)
+
+	# The different SIMD implementations are enabled collectively.
+	local simd
+	for simd in arm_neon ppc_altivec x86_{3dnow,avx2,mmx,sse2} ; do
+		use "cpu_flags_${simd}" && mycmakeargs+=( -DWITH_SIMD:BOOL=ON ) && break
+	done || mycmakeargs+=( -DWITH_SIMD:BOOL=OFF )
+
+	# mostly for Prefix, ensure that we use our yasm if installed and
+	# not pick up host-provided nasm
+	has_version -b dev-lang/yasm && ! has_version -b dev-lang/nasm && \
+		mycmakeargs+=( -DCMAKE_ASM_NASM_COMPILER=$(type -P yasm) )
+
+	cmake_src_configure
+}
+
+multilib_src_install() {
+	cmake_src_install
+
+	if multilib_is_native_abi && use java ; then
+		rm -rf "${ED}"/usr/classes || die
+		java-pkg_dojar java/turbojpeg.jar
+	fi
+}
+
+multilib_src_install_all() {
+	find "${ED}" -type f -name '*.la' -delete || die
+
+	local -a DOCS=( README.md ChangeLog.md )
+	einstalldocs
+
+	newdoc "${WORKDIR}"/debian/changelog changelog.debian
+
+	docinto html
+	dodoc -r "${S}"/doc/html/.
+
+	if use java; then
+		docinto html/java
+		dodoc -r "${S}"/java/doc/.
+		newdoc "${S}"/java/README README.java
+	fi
+}
-- 
2.31.1