#

# Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.  Oracle designates this

# particular file as subject to the "Classpath" exception as provided

# by Oracle in the LICENSE file that accompanied this code.

#

# This code is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.com if you need additional information or have any

# questions.

#

################################################################################

# Build the freetype lib from source

################################################################################

AC_DEFUN([LIB_BUILD_FREETYPE],

[

  FREETYPE_SRC_PATH="$1"

  BUILD_FREETYPE=yes

  # Check if the freetype sources are acessible..

  if ! test -d $FREETYPE_SRC_PATH; then

    AC_MSG_WARN([--with-freetype-src specified, but can not find path "$FREETYPE_SRC_PATH" - ignoring --with-freetype-src])

    BUILD_FREETYPE=no

  fi

  # ..and contain a vc2010 project file

  vcxproj_path="$FREETYPE_SRC_PATH/builds/windows/vc2010/freetype.vcxproj"

  if test "x$BUILD_FREETYPE" = xyes && ! test -s $vcxproj_path; then

    AC_MSG_WARN([Can not find project file $vcxproj_path (you may try a newer freetype version) - ignoring --with-freetype-src])

    BUILD_FREETYPE=no

  fi

  # Now check if configure found a version of 'msbuild.exe'

  if test "x$BUILD_FREETYPE" = xyes && test "x$MSBUILD" == x ; then

    AC_MSG_WARN([Can not find an msbuild.exe executable (you may try to install .NET 4.0) - ignoring --with-freetype-src])

    BUILD_FREETYPE=no

  fi

  # Ready to go..

  if test "x$BUILD_FREETYPE" = xyes; then

    # msbuild requires trailing slashes for output directories

    freetype_lib_path="$FREETYPE_SRC_PATH/lib$OPENJDK_TARGET_CPU_BITS/"

    freetype_lib_path_unix="$freetype_lib_path"

    freetype_obj_path="$FREETYPE_SRC_PATH/obj$OPENJDK_TARGET_CPU_BITS/"

    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(vcxproj_path)

    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(freetype_lib_path)

    BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH(freetype_obj_path)

    if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then

      freetype_platform=x64

    else

      freetype_platform=win32

    fi

    # The original freetype project file is for VS 2010 (i.e. 'v100'),

    # so we have to adapt the toolset if building with any other toolsed (i.e. SDK).

    # Currently 'PLATFORM_TOOLSET' is set in 'TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT'/

    # 'TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT' in toolchain_windows.m4

    AC_MSG_NOTICE([Trying to compile freetype sources with PlatformToolset=$PLATFORM_TOOLSET to $freetype_lib_path_unix ...])

    # First we try to build the freetype.dll

    $ECHO -e "@echo off\n"\

        "$MSBUILD $vcxproj_path "\

        "/p:PlatformToolset=$PLATFORM_TOOLSET "\

        "/p:Configuration=\"Release Multithreaded\" "\

        "/p:Platform=$freetype_platform "\

        "/p:ConfigurationType=DynamicLibrary "\

        "/p:TargetName=freetype "\

        "/p:OutDir=\"$freetype_lib_path\" "\

        "/p:IntDir=\"$freetype_obj_path\" > freetype.log" > freetype.bat

    cmd /c freetype.bat

    if test -s "$freetype_lib_path_unix/freetype.dll"; then

      # If that succeeds we also build freetype.lib

      $ECHO -e "@echo off\n"\

          "$MSBUILD $vcxproj_path "\

          "/p:PlatformToolset=$PLATFORM_TOOLSET "\

          "/p:Configuration=\"Release Multithreaded\" "\

          "/p:Platform=$freetype_platform "\

          "/p:ConfigurationType=StaticLibrary "\

          "/p:TargetName=freetype "\

          "/p:OutDir=\"$freetype_lib_path\" "\

          "/p:IntDir=\"$freetype_obj_path\" >> freetype.log" > freetype.bat

      cmd /c freetype.bat

      if test -s "$freetype_lib_path_unix/freetype.lib"; then

        # Once we build both, lib and dll, set freetype lib and include path appropriately

        POTENTIAL_FREETYPE_INCLUDE_PATH="$FREETYPE_SRC_PATH/include"

        POTENTIAL_FREETYPE_LIB_PATH="$freetype_lib_path_unix"

        AC_MSG_NOTICE([Compiling freetype sources succeeded! (see freetype.log for build results)])

      else

        BUILD_FREETYPE=no

      fi

    else

      BUILD_FREETYPE=no

    fi

  fi

])

################################################################################

# Check if a potential freeype library match is correct and usable

################################################################################

AC_DEFUN([LIB_CHECK_POTENTIAL_FREETYPE],

[

  POTENTIAL_FREETYPE_INCLUDE_PATH="$1"

  POTENTIAL_FREETYPE_LIB_PATH="$2"

  METHOD="$3"

  # Let's start with an optimistic view of the world :-)

  FOUND_FREETYPE=yes

  # First look for the canonical freetype main include file ft2build.h.

  if ! test -s "$POTENTIAL_FREETYPE_INCLUDE_PATH/ft2build.h"; then

    # Oh no! Let's try in the freetype2 directory. This is needed at least at Mac OS X Yosemite.

    POTENTIAL_FREETYPE_INCLUDE_PATH="$POTENTIAL_FREETYPE_INCLUDE_PATH/freetype2"

    if ! test -s "$POTENTIAL_FREETYPE_INCLUDE_PATH/ft2build.h"; then

      # Fail.

      FOUND_FREETYPE=no

    fi

  fi

  if test "x$FOUND_FREETYPE" = xyes; then

    # Include file found, let's continue the sanity check.

    AC_MSG_NOTICE([Found freetype include files at $POTENTIAL_FREETYPE_INCLUDE_PATH using $METHOD])

    # Reset to default value

    FREETYPE_BASE_NAME=freetype

    FREETYPE_LIB_NAME="${LIBRARY_PREFIX}${FREETYPE_BASE_NAME}${SHARED_LIBRARY_SUFFIX}"

    if ! test -s "$POTENTIAL_FREETYPE_LIB_PATH/$FREETYPE_LIB_NAME"; then

      if test "x$OPENJDK_TARGET_OS" = xmacosx \

          && test -s "$POTENTIAL_FREETYPE_LIB_PATH/${LIBRARY_PREFIX}freetype.6${SHARED_LIBRARY_SUFFIX}"; then

        # On Mac OS X Yosemite, the symlink from libfreetype.dylib to libfreetype.6.dylib disappeared. Check

        # for the .6 version explicitly.

        FREETYPE_BASE_NAME=freetype.6

        FREETYPE_LIB_NAME="${LIBRARY_PREFIX}${FREETYPE_BASE_NAME}${SHARED_LIBRARY_SUFFIX}"

        AC_MSG_NOTICE([Compensating for missing symlink by using version 6 explicitly])

      else

        AC_MSG_NOTICE([Could not find $POTENTIAL_FREETYPE_LIB_PATH/$FREETYPE_LIB_NAME. Ignoring location.])

        FOUND_FREETYPE=no

      fi

    else

      if test "x$OPENJDK_TARGET_OS" = xwindows; then

        # On Windows, we will need both .lib and .dll file.

        if ! test -s "$POTENTIAL_FREETYPE_LIB_PATH/${FREETYPE_BASE_NAME}.lib"; then

          AC_MSG_NOTICE([Could not find $POTENTIAL_FREETYPE_LIB_PATH/${FREETYPE_BASE_NAME}.lib. Ignoring location.])

          FOUND_FREETYPE=no

        fi

      elif test "x$OPENJDK_TARGET_OS" = xsolaris \

          && test -s "$POTENTIAL_FREETYPE_LIB_PATH$OPENJDK_TARGET_CPU_ISADIR/$FREETYPE_LIB_NAME"; then

        # Found lib in isa dir, use that instead.

        POTENTIAL_FREETYPE_LIB_PATH="$POTENTIAL_FREETYPE_LIB_PATH$OPENJDK_TARGET_CPU_ISADIR"

        AC_MSG_NOTICE([Rewriting to use $POTENTIAL_FREETYPE_LIB_PATH instead])

      fi

    fi

  fi

  if test "x$FOUND_FREETYPE" = xyes; then

    BASIC_FIXUP_PATH(POTENTIAL_FREETYPE_INCLUDE_PATH)

    BASIC_FIXUP_PATH(POTENTIAL_FREETYPE_LIB_PATH)

    FREETYPE_INCLUDE_PATH="$POTENTIAL_FREETYPE_INCLUDE_PATH"

    AC_MSG_CHECKING([for freetype includes])

    AC_MSG_RESULT([$FREETYPE_INCLUDE_PATH])

    FREETYPE_LIB_PATH="$POTENTIAL_FREETYPE_LIB_PATH"

    AC_MSG_CHECKING([for freetype libraries])

    AC_MSG_RESULT([$FREETYPE_LIB_PATH])

  fi

])

################################################################################

# Setup freetype (The FreeType2 font rendering library)

################################################################################

AC_DEFUN_ONCE([LIB_SETUP_FREETYPE],

[

  AC_ARG_WITH(freetype, [AS_HELP_STRING([--with-freetype],

      [specify prefix directory for the freetype package

      (expecting the libraries under PATH/lib and the headers under PATH/include)])])

  AC_ARG_WITH(freetype-include, [AS_HELP_STRING([--with-freetype-include],

      [specify directory for the freetype include files])])

  AC_ARG_WITH(freetype-lib, [AS_HELP_STRING([--with-freetype-lib],

      [specify directory for the freetype library])])

  AC_ARG_WITH(freetype-src, [AS_HELP_STRING([--with-freetype-src],

      [specify directory with freetype sources to automatically build the library (experimental, Windows-only)])])

  AC_ARG_ENABLE(freetype-bundling, [AS_HELP_STRING([--disable-freetype-bundling],

      [disable bundling of the freetype library with the build result @<:@enabled on Windows or when using --with-freetype, disabled otherwise@:>@])])

  # Need to specify explicitly since it needs to be overridden on some versions of macosx

  FREETYPE_BASE_NAME=freetype

  FREETYPE_CFLAGS=

  FREETYPE_LIBS=

  FREETYPE_BUNDLE_LIB_PATH=

  if test "x$NEEDS_LIB_FREETYPE" = xfalse; then

    if test "x$with_freetype" != x || test "x$with_freetype_include" != x || test "x$with_freetype_lib" != x || test "x$with_freetype_src" != x; then

      AC_MSG_WARN([freetype not used, so --with-freetype is ignored])

    fi

    if test "x$enable_freetype_bundling" != x; then

      AC_MSG_WARN([freetype not used, so --enable-freetype-bundling is ignored])

    fi

  else

    # freetype is needed to build; go get it!

    BUNDLE_FREETYPE="$enable_freetype_bundling"

    if  test "x$with_freetype_src" != x; then

      if test "x$OPENJDK_TARGET_OS" = xwindows; then

        # Try to build freetype if --with-freetype-src was given on Windows

        LIB_BUILD_FREETYPE([$with_freetype_src])

        if test "x$BUILD_FREETYPE" = xyes; then

          # Okay, we built it. Check that it works.

          LIB_CHECK_POTENTIAL_FREETYPE($POTENTIAL_FREETYPE_INCLUDE_PATH, $POTENTIAL_FREETYPE_LIB_PATH, [--with-freetype-src])

          if test "x$FOUND_FREETYPE" != xyes; then

            AC_MSG_ERROR([Can not use the built freetype at location given by --with-freetype-src])

          fi

        else

          AC_MSG_NOTICE([User specified --with-freetype-src but building freetype failed. (see freetype.log for build results)])

          AC_MSG_ERROR([Consider building freetype manually and using --with-freetype instead.])

        fi

      else

        AC_MSG_WARN([--with-freetype-src is currently only supported on Windows - ignoring])

      fi

    fi

    if test "x$with_freetype" != x || test "x$with_freetype_include" != x || test "x$with_freetype_lib" != x; then

      # User has specified settings

      if test "x$BUNDLE_FREETYPE" = x; then

        # If not specified, default is to bundle freetype

        BUNDLE_FREETYPE=yes

      fi

      if test "x$with_freetype" != x; then

        POTENTIAL_FREETYPE_INCLUDE_PATH="$with_freetype/include"

        POTENTIAL_FREETYPE_LIB_PATH="$with_freetype/lib"

      fi

      # Allow --with-freetype-lib and --with-freetype-include to override

      if test "x$with_freetype_include" != x; then

        POTENTIAL_FREETYPE_INCLUDE_PATH="$with_freetype_include"

      fi

      if test "x$with_freetype_lib" != x; then

        POTENTIAL_FREETYPE_LIB_PATH="$with_freetype_lib"

      fi

      if test "x$POTENTIAL_FREETYPE_INCLUDE_PATH" != x && test "x$POTENTIAL_FREETYPE_LIB_PATH" != x; then

        # Okay, we got it. Check that it works.

        LIB_CHECK_POTENTIAL_FREETYPE($POTENTIAL_FREETYPE_INCLUDE_PATH, $POTENTIAL_FREETYPE_LIB_PATH, [--with-freetype])

        if test "x$FOUND_FREETYPE" != xyes; then

          AC_MSG_ERROR([Can not find or use freetype at location given by --with-freetype])

        fi

      else

        # User specified only one of lib or include. This is an error.

        if test "x$POTENTIAL_FREETYPE_INCLUDE_PATH" = x ; then

          AC_MSG_NOTICE([User specified --with-freetype-lib but not --with-freetype-include])

          AC_MSG_ERROR([Need both freetype lib and include paths. Consider using --with-freetype instead.])

        else

          AC_MSG_NOTICE([User specified --with-freetype-include but not --with-freetype-lib])

          AC_MSG_ERROR([Need both freetype lib and include paths. Consider using --with-freetype instead.])

        fi

      fi

    else

      # User did not specify settings, but we need freetype. Try to locate it.

      if test "x$BUNDLE_FREETYPE" = x; then

        # If not specified, default is to bundle freetype only on windows

        if test "x$OPENJDK_TARGET_OS" = xwindows; then

          BUNDLE_FREETYPE=yes

        else

          BUNDLE_FREETYPE=no

        fi

      fi

      # If we have a sysroot, assume that's where we are supposed to look and skip pkg-config.

      if test "x$SYSROOT" = x; then

        if test "x$FOUND_FREETYPE" != xyes; then

          # Check modules using pkg-config, but only if we have it (ugly output results otherwise)

          if test "x$PKG_CONFIG" != x; then

            PKG_CHECK_MODULES(FREETYPE, freetype2, [FOUND_FREETYPE=yes], [FOUND_FREETYPE=no])

            if test "x$FOUND_FREETYPE" = xyes; then

              # On solaris, pkg_check adds -lz to freetype libs, which isn't necessary for us.

              FREETYPE_LIBS=`$ECHO $FREETYPE_LIBS | $SED 's/-lz//g'`

              # 64-bit libs for Solaris x86 are installed in the amd64 subdirectory, change lib to lib/amd64

              if test "x$OPENJDK_TARGET_OS" = xsolaris && test "x$OPENJDK_TARGET_CPU" = xx86_64; then

                FREETYPE_LIBS=`$ECHO $FREETYPE_LIBS | $SED 's?/lib?/lib/amd64?g'`

              fi

              # PKG_CHECK_MODULES will set FREETYPE_CFLAGS and _LIBS, but we don't get a lib path for bundling.

              if test "x$BUNDLE_FREETYPE" = xyes; then

                AC_MSG_NOTICE([Found freetype using pkg-config, but ignoring since we can not bundle that])

                FOUND_FREETYPE=no

              else

                AC_MSG_CHECKING([for freetype])

                AC_MSG_RESULT([yes (using pkg-config)])

              fi

            fi

          fi

        fi

      fi

      if test "x$FOUND_FREETYPE" != xyes; then

        # Check in well-known locations

        if test "x$OPENJDK_TARGET_OS" = xwindows; then

          FREETYPE_BASE_DIR="$PROGRAMFILES/GnuWin32"

          BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(FREETYPE_BASE_DIR)

          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib], [well-known location])

          if test "x$FOUND_FREETYPE" != xyes; then

            FREETYPE_BASE_DIR="$ProgramW6432/GnuWin32"

            BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(FREETYPE_BASE_DIR)

            LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib], [well-known location])

          fi

        else

          FREETYPE_BASE_DIR="$SYSROOT/usr"

          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib], [well-known location])

          if test "x$FOUND_FREETYPE" != xyes; then

            FREETYPE_BASE_DIR="$SYSROOT/usr/X11"

            LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib], [well-known location])

          fi

          if test "x$FOUND_FREETYPE" != xyes; then

            FREETYPE_BASE_DIR="$SYSROOT/usr/sfw"

            LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib], [well-known location])

          fi

          if test "x$FOUND_FREETYPE" != xyes; then

            FREETYPE_BASE_DIR="$SYSROOT/usr"

            if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then

              LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib/x86_64-linux-gnu], [well-known location])

            else

              LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib/i386-linux-gnu], [well-known location])

              if test "x$FOUND_FREETYPE" != xyes; then

                LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include], [$FREETYPE_BASE_DIR/lib32], [well-known location])

              fi

            fi

          fi

        fi

      fi # end check in well-known locations

      if test "x$FOUND_FREETYPE" != xyes; then

        HELP_MSG_MISSING_DEPENDENCY([freetype])

        AC_MSG_ERROR([Could not find freetype! $HELP_MSG ])

      fi

    fi # end user specified settings

    # Set FREETYPE_CFLAGS, _LIBS and _LIB_PATH from include and lib dir.

    if test "x$FREETYPE_CFLAGS" = x; then

      BASIC_FIXUP_PATH(FREETYPE_INCLUDE_PATH)

      if test -d $FREETYPE_INCLUDE_PATH/freetype2/freetype; then

        FREETYPE_CFLAGS="-I$FREETYPE_INCLUDE_PATH/freetype2 -I$FREETYPE_INCLUDE_PATH"

      else

        FREETYPE_CFLAGS="-I$FREETYPE_INCLUDE_PATH"

      fi

    fi

    if test "x$FREETYPE_LIBS" = x; then

      BASIC_FIXUP_PATH(FREETYPE_LIB_PATH)

      if test "x$OPENJDK_TARGET_OS" = xwindows; then

        FREETYPE_LIBS="$FREETYPE_LIB_PATH/$FREETYPE_BASE_NAME.lib"

      else

        FREETYPE_LIBS="-L$FREETYPE_LIB_PATH -l$FREETYPE_BASE_NAME"

      fi

    fi

    # Try to compile it

    AC_MSG_CHECKING([if we can compile and link with freetype])

    AC_LANG_PUSH(C++)

    PREV_CXXCFLAGS="$CXXFLAGS"

    PREV_LIBS="$LIBS"

    PREV_CXX="$CXX"

    CXXFLAGS="$CXXFLAGS $FREETYPE_CFLAGS"

    LIBS="$LIBS $FREETYPE_LIBS"

    CXX="$FIXPATH $CXX"

    AC_LINK_IFELSE([AC_LANG_SOURCE([[

          #include<ft2build.h>

          #include FT_FREETYPE_H

          int main () {

            FT_Init_FreeType(NULL);

            return 0;

          }

        ]])],

        [

          AC_MSG_RESULT([yes])

        ],

        [

          AC_MSG_RESULT([no])

          AC_MSG_NOTICE([Could not compile and link with freetype. This might be a 32/64-bit mismatch.])

          AC_MSG_NOTICE([Using FREETYPE_CFLAGS=$FREETYPE_CFLAGS and FREETYPE_LIBS=$FREETYPE_LIBS])

          HELP_MSG_MISSING_DEPENDENCY([freetype])

          AC_MSG_ERROR([Can not continue without freetype. $HELP_MSG])

        ]

    )

    CXXCFLAGS="$PREV_CXXFLAGS"

    LIBS="$PREV_LIBS"

    CXX="$PREV_CXX"

    AC_LANG_POP(C++)

    AC_MSG_CHECKING([if we should bundle freetype])

    if test "x$BUNDLE_FREETYPE" = xyes; then

      FREETYPE_BUNDLE_LIB_PATH="$FREETYPE_LIB_PATH"

    fi

    AC_MSG_RESULT([$BUNDLE_FREETYPE])

  fi # end freetype needed

  AC_SUBST(FREETYPE_BUNDLE_LIB_PATH)

  AC_SUBST(FREETYPE_CFLAGS)

  AC_SUBST(FREETYPE_LIBS)

])