package/libjxl: new package

libjxl is the reference implementation of JPEG XL (encoder and decoder).

https://github.com/libjxl/libjxl

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1688,6 +1688,7 @@ F:	package/fluidsynth/
 F:	package/glslsandbox-player/
 F:	package/gnupg2/
 F:	package/highway/
+F:	package/libjxl/
 F:	package/octave/
 F:	package/ola/
 F:	package/perftest/
@@ -1712,6 +1713,7 @@ F:	support/testing/tests/package/sample_python_spake2.py
 F:	support/testing/tests/package/test_gnupg2.py
 F:	support/testing/tests/package/test_highway.py
 F:	support/testing/tests/package/test_hwloc.py
+F:	support/testing/tests/package/test_libjxl.py
 F:	support/testing/tests/package/test_ncdu.py
 F:	support/testing/tests/package/test_octave.py
 F:	support/testing/tests/package/test_ola.py

package/Config.in

@@ -1603,6 +1603,7 @@ menu "Graphics"
 	source "package/libgta/Config.in"
 	source "package/libgtk2/Config.in"
 	source "package/libgtk3/Config.in"
+	source "package/libjxl/Config.in"
 	source "package/libmediaart/Config.in"
 	source "package/libmng/Config.in"
 	source "package/libpng/Config.in"

package/libjxl/Config.in

@@ -0,0 +1,25 @@
+config BR2_PACKAGE_LIBJXL
+	bool "libjxl"
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # highway
+	depends on BR2_TOOLCHAIN_HAS_ATOMIC # highway
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_INSTALL_LIBSTDCPP # highway
+	# libjxl fail to link statically due to libatomic issue
+	depends on !BR2_STATIC_LIBS
+	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_81426
+	select BR2_PACKAGE_BROTLI
+	select BR2_PACKAGE_HIGHWAY
+	select BR2_PACKAGE_LCMS2
+	help
+	  libjxl is the reference implementation of JPEG XL (encoder
+	  and decoder).
+
+	  https://github.com/libjxl/libjxl
+
+comment "libjxl needs a toolchain with C++, threads, gcc >= 7, dynamic library"
+	depends on BR2_TOOLCHAIN_HAS_ATOMIC
+	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_81426
+	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_7 || \
+		!BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_STATIC_LIBS

package/libjxl/libjxl.hash

@@ -0,0 +1,4 @@
+# Locally computed:
+sha256  3114bba1fabb36f6f4adc2632717209aa6f84077bc4e93b420e0d63fa0455c5e  libjxl-0.7.0.tar.gz
+sha256  8405932022a556380c2d8c272eff154a923feb197233f348ce5f7334fb0a5ede  LICENSE
+sha256  91915f8ae056a68a3c5bdf05d9f6f78bb6903e27a8ca3a8434c9e4ac87300575  PATENTS

package/libjxl/libjxl.mk

@@ -0,0 +1,33 @@
+################################################################################
+#
+# libjxl
+#
+################################################################################
+
+LIBJXL_VERSION = 0.7.0
+LIBJXL_SITE = $(call github,libjxl,libjxl,v$(LIBJXL_VERSION))
+LIBJXL_LICENSE = BSD-3-Clause
+LIBJXL_LICENSE_FILES = LICENSE PATENTS
+LIBJXL_CPE_ID_VENDOR = libjxl_project
+LIBJXL_INSTALL_STAGING = YES
+
+LIBJXL_DEPENDENCIES = \
+	brotli \
+	lcms2 \
+	highway
+
+ifeq ($(BR2_PACKAGE_LIBPNG),y)
+LIBJXL_DEPENDENCIES += libpng
+endif
+
+LIBJXL_CONF_OPTS = \
+	-DJPEGXL_BUNDLE_LIBPNG=OFF \
+	-DJPEGXL_BUNDLE_SKCMS=OFF \
+	-DJPEGXL_ENABLE_DOXYGEN=OFF \
+	-DJPEGXL_ENABLE_JNI=OFF \
+	-DJPEGXL_ENABLE_MANPAGES=OFF \
+	-DJPEGXL_ENABLE_OPENEXR=OFF \
+	-DJPEGXL_ENABLE_SJPEG=OFF \
+	-DJPEGXL_ENABLE_SKCMS=OFF
+
+$(eval $(cmake-package))

support/testing/tests/package/test_libjxl.py

@@ -0,0 +1,53 @@
+import os
+
+import infra.basetest
+
+
+class TestLibJXL(infra.basetest.BRTest):
+    # infra.basetest.BASIC_TOOLCHAIN_CONFIG is not used as it is armv5
+    # and the image encoding would take too long (several minutes).
+    # We also add GraphicsMagick to generate and compare images for
+    # the test.
+    config = \
+        """
+        BR2_aarch64=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.79"
+        BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+        BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
+        BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        BR2_TARGET_ROOTFS_CPIO_GZIP=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        BR2_PACKAGE_GRAPHICSMAGICK=y
+        BR2_PACKAGE_LIBJXL=y
+        """
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
+        kern = os.path.join(self.builddir, "images", "Image")
+        self.emulator.boot(arch="aarch64",
+                           kernel=kern,
+                           kernel_cmdline=["console=ttyAMA0"],
+                           options=["-M", "virt", "-cpu", "cortex-a57", "-m", "256M", "-initrd", img])
+        self.emulator.login()
+
+        ref = "/var/tmp/reference.ppm"
+        jxl = "/var/tmp/encoded.jxl"
+        dec = "/var/tmp/decoded.ppm"
+
+        cmd = "gm convert IMAGE:LOGO {}".format(ref)
+        self.assertRunOk(cmd)
+
+        cmd = "cjxl {} {}".format(ref, jxl)
+        self.assertRunOk(cmd, timeout=30)
+
+        cmd = "djxl {} {}".format(jxl, dec)
+        self.assertRunOk(cmd)
+
+        cmd = "gm compare -metric mse -maximum-error 1e-3 {} {}".format(
+            ref, dec)
+        self.assertRunOk(cmd)

toolchain/Config.in

@@ -141,6 +141,11 @@ config BR2_TOOLCHAIN_HAS_GCC_BUG_68485
 	bool
 	default y if BR2_microblaze
 
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81426
+config BR2_TOOLCHAIN_HAS_GCC_BUG_81426
+	bool
+	default y if BR2_sh
+
 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83143
 # Error: invalid operands (*UND* and .text sections) for `-' on sh4.
 # This bug no longer exists in gcc 10.x but reappeared on gcc 11.x and