Add imlib2 support for login screen customisation

.cirrus.yml

@@ -6,11 +6,11 @@ FreeBSD_task:
     freebsd_instance:
       image_family: freebsd-12-2
   prepare_script:
-    - pkg install -y $SSL git autoconf automake libtool pkgconf opus jpeg-turbo fdk-aac pixman libX11 libXfixes libXrandr nasm fusefs-libs check
+    - pkg install -y $SSL git autoconf automake libtool pkgconf opus jpeg-turbo fdk-aac pixman libX11 libXfixes libXrandr nasm fusefs-libs check imlib2
     - git submodule update --init --recursive
   configure_script:
     - ./bootstrap
-    - env CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib ./configure --localstatedir=/var --enable-strict-locations --with-pkgconfigdir=/usr/local/libdata/pkgconfig --enable-strict-locations --enable-ipv6 --enable-opus --enable-jpeg --enable-fdkaac --enable-painter --enable-pixman --enable-fuse
+    - env CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib ./configure --localstatedir=/var --enable-strict-locations --with-pkgconfigdir=/usr/local/libdata/pkgconfig --enable-strict-locations --enable-ipv6 --enable-opus --enable-jpeg --enable-fdkaac --enable-painter --enable-pixman --enable-fuse --with-imlib2
   build_script:
     - make -j $(sysctl -n hw.ncpu || echo 4)
   install_script:

.github/workflows/build.yml

@@ -94,10 +94,10 @@ jobs:
                   --disable-pixman"
       CONF_FLAGS_amd64_max: "--enable-ipv6 --enable-jpeg --enable-fuse --enable-mp3lame
                   --enable-fdkaac --enable-opus --enable-rfxcodec --enable-painter
-                  --enable-pixman"
+                  --enable-pixman --with-imlib2"
       CONF_FLAGS_i386_max: "--enable-ipv6 --enable-jpeg --enable-fuse --enable-mp3lame
                   --enable-fdkaac --enable-opus --enable-rfxcodec --enable-painter
-                  --disable-pixman --host=i686-linux"
+                  --disable-pixman --with-imlib2 --host=i686-linux"
 
       PKG_CONFIG_PATH_i386: "/usr/lib/i386-linux-gnu/pkgconfig"
       CFLAGS_i386: "-m32"

configure.ac

@@ -166,6 +166,8 @@ AC_ARG_ENABLE(rdpsndaudin, AS_HELP_STRING([--enable-rdpsndaudin],
               [], [enable_rdpsndaudin=no])
 AM_CONDITIONAL(XRDP_RDPSNDAUDIN, [test x$enable_rdpsndaudin = xyes])
 
+AC_ARG_WITH(imlib2, AC_HELP_STRING([--with-imlib2=ARG], [imlib2 library to use for non-BMP backgrounds (ARG=yes/no/<abs-path>)]),,)
+
 # Obsolete options
 AC_ARG_ENABLE(xrdpdebug, AS_HELP_STRING([--enable-xrdpdebug],
               [This option is no longer supported - use --enable-devel-all]))
@@ -216,6 +218,44 @@ AC_CHECK_HEADER([security/_pam_types.h],
 AC_CHECK_HEADER([security/pam_constants.h],
                 [AC_DEFINE([HAVE_PAM_CONSTANTS_H], 1, [Using OpenPAM], [])])
 
+# Find imlib2
+case "$with_imlib2" in
+    '' | no) AC_MSG_NOTICE([imlib2 will not be supported])
+        use_imlib2=no
+        ;;
+    yes)
+        PKG_CHECK_MODULES([IMLIB2], [imlib2 >= 1.4.10],
+            [use_imlib2=yes],
+            [AC_MSG_ERROR([please install libimlib2-dev or imlib2-devel])])
+        ;;
+    /*) AC_MSG_CHECKING([for imlib2 in $with_imlib2])
+        if test -d $with_imlib2/lib; then
+            IMLIB2_LIBS="-L$with_imlib2/lib -lImlib2"
+        elif test -d $with_imlib2/lib64; then
+            IMLIB2_LIBS="-L$with_imlib2/lib64 -lImlib2"
+        else
+            AC_MSG_RESULT([no])
+            AC_MSG_ERROR([Can't find libImlib2 in $with_imlib2])
+        fi
+
+        if test -f $with_imlib2/include/Imlib2.h; then
+            IMLIB2_CFLAGS="-I $with_imlib2/include"
+        else
+            AC_MSG_RESULT([no])
+            AC_MSG_ERROR([Can't find $with_imlib2/include/Imlib2.h])
+        fi
+        AC_MSG_RESULT([yes])
+        AC_SUBST([IMLIB2_LIBS])
+        AC_SUBST([IMLIB2_CFLAGS])
+        use_imlib2=yes
+        ;;
+    *)  AC_MSG_ERROR([--with-imlib2 needs yes/no or absolute path])
+esac
+
+if test x$use_imlib2 = xyes; then
+    AC_DEFINE([USE_IMLIB2],1, [Compile with imlib2 support])
+fi
+
 # Check only one auth mechanism is specified, and give it a name
 auth_cnt=0
 auth_mech="Builtin"
@@ -454,6 +494,7 @@ AC_CONFIG_FILES([
   tests/Makefile
   tests/common/Makefile
   tests/memtest/Makefile
+  tests/xrdp/Makefile
   tools/Makefile
   tools/devel/Makefile
   tools/devel/tcp_proxy/Makefile
@@ -485,6 +526,12 @@ echo "  vsock                   $enable_vsock"
 echo "  auth mechanism          $auth_mech"
 echo "  rdpsndaudin             $enable_rdpsndaudin"
 echo
+if test x$use_imlib2 = xyes; then
+    echo "  with imlib2             yes"
+else
+    echo "  with imlib2             no"
+fi
+echo
 echo "  development logging     $devel_logging"
 echo "  development streamcheck $devel_streamcheck"
 echo ""

scripts/install_xrdp_build_dependencies_with_apt.sh

@@ -50,6 +50,7 @@ in
                     libjpeg-dev \
                     libmp3lame-dev \
                     libfdk-aac-dev \
+                    libimlib2-dev \
                     libopus-dev \
                     libpixman-1-dev"
                 ;;
@@ -66,6 +67,7 @@ in
             libgl1-mesa-dev:i386 \
             libglu1-mesa-dev:i386 \
             libjpeg-dev:i386 \
+            libimlib2-dev:i386 \
             libmp3lame-dev:i386 \
             libfdk-aac-dev:i386 \
             libopus-dev:i386 \

tests/Makefile.am

@@ -4,4 +4,5 @@ EXTRA_DIST = \
 
 SUBDIRS = \
   common \
-  memtest 
+  memtest \
+  xrdp

tests/xrdp/Makefile.am

@@ -0,0 +1,41 @@
+AM_CPPFLAGS = \
+  -I$(top_builddir) \
+  -I$(top_srcdir)/xrdp \
+  -I$(top_srcdir)/libxrdp \
+  -I$(top_srcdir)/common \
+  $(IMLIB2_CFLAGS)
+
+LOG_DRIVER = env AM_TAP_AWK='$(AWK)' $(SHELL) \
+                  $(top_srcdir)/tap-driver.sh
+
+PACKAGE_STRING="XRDP daemon"
+
+EXTRA_DIST = \
+  test_4bit.bmp \
+  test_8bit.bmp \
+  test_24bit.bmp \
+  test_not4_4bit.bmp \
+  test_not4_8bit.bmp \
+  test_not4_24bit.bmp \
+  test1.jpg \
+  test_alpha_blend.png
+
+TESTS = test_xrdp
+check_PROGRAMS = test_xrdp
+
+test_xrdp_SOURCES = \
+    test_xrdp.h \
+    test_xrdp_main.c \
+    test_bitmap_load.c
+
+test_xrdp_CFLAGS = \
+    -D IMAGEDIR=\"$(srcdir)\" \
+    @CHECK_CFLAGS@
+
+test_xrdp_LDADD = \
+    $(top_builddir)/xrdp/xrdp_bitmap_load.o \
+    $(top_builddir)/xrdp/xrdp_bitmap_common.o \
+    $(top_builddir)/xrdp/funcs.o \
+    $(top_builddir)/common/libcommon.la \
+    $(IMLIB2_LIBS) \
+    @CHECK_LIBS@