# Copyright (c) 2007 Intel Corporation. All Rights Reserved.

#

# Permission is hereby granted, free of charge, to any person obtaining a

# copy of this software and associated documentation files (the

# "Software"), to deal in the Software without restriction, including

# without limitation the rights to use, copy, modify, merge, publish,

# distribute, sub license, and/or sell copies of the Software, and to

# permit persons to whom the Software is furnished to do so, subject to

# the following conditions:

#

# The above copyright notice and this permission notice (including the

# next paragraph) shall be included in all copies or substantial portions

# of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

# IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR

# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

# VA-API version

# - increment major for any ABI change

# - increment minor for any interface change (e.g. new/modified function)

# - increment micro for any other change (new flag, new codec definition, etc.)

# - reset micro version to zero when minor version is incremented

# - reset minor version to zero when major version is incremented

m4_define([va_api_major_version], [1])

m4_define([va_api_minor_version], [5])

m4_define([va_api_micro_version], [0])

m4_define([va_api_version],

          [va_api_major_version.va_api_minor_version.va_api_micro_version])

# libva package version number, (as distinct from shared library version)

# XXX: we want the package version to remain at 1.0.x for VA-API 0.32.y

#

# - major version is automatically generated from VA-API major version

# - minor version is automatically generated from VA-API minor version

# - increment micro for any library release

# - reset micro version to zero when VA-API major or minor version is changed

m4_define([libva_major_version], [m4_eval(va_api_major_version + 1)])

m4_define([libva_minor_version], [m4_eval(va_api_minor_version)])

m4_define([libva_micro_version], [0])

m4_define([libva_pre_version],   [0])

m4_define([libva_version],

          [libva_major_version.libva_minor_version.libva_micro_version])

m4_if(libva_pre_version, [0], [], [

m4_append([libva_version], libva_pre_version, [.pre])

])

# libva library version number (generated, do not change)

# XXX: we want the SONAME to remain at libva.so.1 for VA-API major == 0

#

# The library name is generated libva.<x>.<y>.0 where

# <x> = VA-API major version + 1

# <y> = 100 * VA-API minor version + VA-API micro version

#

# For example:

# VA-API 0.32.0 generates libva.so.1.3200.0

# VA-API 0.34.1 generates libva.so.1.3401.0

# VA-API 1.2.13 generates libva.so.2.213.0

m4_define([libva_interface_bias], [m4_eval(va_api_major_version + 1)])

m4_define([libva_interface_age],  [0])

m4_define([libva_binary_age],

          [m4_eval(100 * va_api_minor_version + va_api_micro_version - libva_interface_age)])

m4_define([libva_lt_current],

          [m4_eval(100 * va_api_minor_version + va_api_micro_version + libva_interface_bias)])

m4_define([libva_lt_revision],

          [m4_eval(libva_interface_age)])

m4_define([libva_lt_age],

          [m4_eval(libva_binary_age - libva_interface_age)])

# libdrm minimun version requirement

m4_define([libdrm_version], [2.4])

# Wayland minimum version number

# 1.11.0 for wl_proxy_create_wrapper

m4_define([wayland_api_version], [1.11.0])

AC_PREREQ(2.57)

AC_INIT([libva],

        [libva_version],

        [https://github.com/intel/libva/issues/new],

        [libva],

        [https://github.com/intel/libva])

AC_CONFIG_SRCDIR([Makefile.am])

AC_CONFIG_MACRO_DIR([m4])

AM_INIT_AUTOMAKE([dist-bzip2 -Wno-portability])

AC_CONFIG_HEADERS([config.h])

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

TODAY="`LC_ALL=C date +'%a, %d %b %Y %X %z'`"

AC_SUBST(TODAY)

VA_API_MAJOR_VERSION=va_api_major_version

VA_API_MINOR_VERSION=va_api_minor_version

VA_API_MICRO_VERSION=va_api_micro_version

VA_API_VERSION=va_api_version

AC_SUBST(VA_API_MAJOR_VERSION)

AC_SUBST(VA_API_MINOR_VERSION)

AC_SUBST(VA_API_MICRO_VERSION)

AC_SUBST(VA_API_VERSION)

LIBVA_MAJOR_VERSION=libva_major_version

LIBVA_MINOR_VERSION=libva_minor_version

LIBVA_MICRO_VERSION=libva_micro_version

LIBVA_VERSION=libva_version

AC_SUBST(LIBVA_MAJOR_VERSION)

AC_SUBST(LIBVA_MINOR_VERSION)

AC_SUBST(LIBVA_MICRO_VERSION)

AC_SUBST(LIBVA_VERSION)

LIBVA_LT_CURRENT=libva_lt_current

LIBVA_LT_REV=libva_lt_revision

LIBVA_LT_AGE=libva_lt_age

LIBVA_LT_VERSION="$LIBVA_LT_CURRENT:$LIBVA_LT_REV:$LIBVA_LT_AGE"

LIBVA_LT_LDFLAGS="-version-info $LIBVA_LT_VERSION"

AC_SUBST(LIBVA_LT_VERSION)

AC_SUBST(LIBVA_LT_LDFLAGS)

AC_ARG_ENABLE(docs,

    [AC_HELP_STRING([--enable-docs],

                    [build Doxygen documentation @<:@default=no@:>@])],

    [], [enable_docs="no"])

AC_ARG_ENABLE(drm,

    [AC_HELP_STRING([--enable-drm],

                    [build with VA/DRM API support @<:@default=yes@:>@])],

    [], [enable_drm="yes"])

AC_ARG_ENABLE(x11,

    [AC_HELP_STRING([--enable-x11],

                    [build with VA/X11 API support @<:@default=auto@:>@])],

    [], [enable_x11="auto"])

AC_ARG_ENABLE(glx,

    [AC_HELP_STRING([--enable-glx],

                    [build with VA/GLX API support @<:@default=auto@:>@])],

    [], [enable_glx="auto"])

AC_ARG_ENABLE([wayland],

    [AC_HELP_STRING([--enable-wayland],

                    [build with VA/Wayland API support @<:@default=auto@:>@])],

    [], [enable_wayland="auto"])

AC_ARG_ENABLE([va-messaging],

    [AC_HELP_STRING([--enable-va-messaging],

                    [build with va info and error messaging @<:@default=yes@:>@])],

    [], [enable_va_messaging="yes"])

AC_ARG_WITH(drivers-path,

    [AC_HELP_STRING([--with-drivers-path=[[path]]],

                    [drivers path])],

    [], [with_drivers_path="$libdir/dri"])

LIBVA_DRIVERS_PATH="$with_drivers_path"

AC_SUBST(LIBVA_DRIVERS_PATH)

AC_DISABLE_STATIC

AC_PROG_LIBTOOL

AC_PROG_CC

AC_PROG_CXX

AM_PROG_CC_C_O

AC_PROG_SED

PKG_PROG_PKG_CONFIG

AC_HEADER_STDC

AC_SYS_LARGEFILE

# Check for Doxygen

if test "$enable_docs" = "yes"; then

    AC_CHECK_TOOL([DOXYGEN], [doxygen], [no])

    if test "$DOXYGEN" = "no"; then

       enable_docs="no"

    fi

fi

AM_CONDITIONAL(ENABLE_DOCS, test "$enable_docs" = "yes")

# Check for va messaging

if test "$enable_va_messaging" = "yes"; then

    AC_DEFINE([ENABLE_VA_MESSAGING], [1], [Defined to 1 if va messaging is needed])

fi

# Check for __attribute__((visibility()))

AC_CACHE_CHECK([whether __attribute__((visibility())) is supported],

    ac_cv_have_gnuc_visibility_attribute,

    [cat > conftest.c <

int foo __attribute__ ((visibility ("hidden"))) = 1;

int bar __attribute__ ((visibility ("protected"))) = 1;

EOF

    ac_cv_have_gnuc_visibility_attribute="no"

    if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then

        if grep '\.hidden.*foo' conftest.s >/dev/null; then

            if grep '\.protected.*bar' conftest.s >/dev/null; then

                ac_cv_have_gnuc_visibility_attribute="yes"

            fi

        fi

    fi

    rm -f conftest.[cs]

])

if test "$ac_cv_have_gnuc_visibility_attribute" = "yes"; then

    AC_DEFINE([HAVE_GNUC_VISIBILITY_ATTRIBUTE], [1],

              [Defined to 1 if GCC visibility attribute is supported])

fi

# Check for -fstack-protector

ssp_cc=yes

if test "X$CC-cc" != "X"; then

    AC_MSG_CHECKING([whether ${CC-cc} accepts -fstack-protector])

    ssp_old_cflags="$CFLAGS"

    CFLAGS="$CFLAGS -fstack-protector"

    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[alloca(100);]])], [], [ssp_cc=no])

    AC_MSG_RESULT([$ssp_cc])

    if test "X$ssp_cc" = "Xno"; then

        CFLAGS="$ssp_old_cflags"

    else

        AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.])

    fi

fi

AM_CONDITIONAL(USE_SSP, test "$ssp_cc" = "yes")

# Check for DRM (mandatory)

LIBDRM_VERSION=libdrm_version

PKG_CHECK_MODULES([DRM], [libdrm >= $LIBDRM_VERSION])

AC_SUBST(LIBDRM_VERSION)

USE_DRM="no"

if test "$enable_drm" = "yes"; then

    USE_DRM="yes"

    AC_DEFINE([HAVE_VA_DRM], [1], [Defined to 1 if VA/DRM API is built])

fi

AM_CONDITIONAL(USE_DRM, test "$USE_DRM" = "yes")

# Check for X11

USE_X11="no"

if test "x$enable_x11" != "xno"; then

    PKG_CHECK_MODULES([X11],    [x11 xext xfixes],    [USE_X11="yes"], [:])

    if test "x$USE_X11" = "xno" -a "x$enable_x11" = "xyes"; then

       AC_MSG_ERROR([VA/X11 explicitly enabled, however $X11_PKG_ERRORS])

    fi

    if test "$USE_X11" = "yes"; then

        AC_DEFINE([HAVE_VA_X11], [1], [Defined to 1 if VA/X11 API is built])

    fi

fi

AM_CONDITIONAL(USE_X11, test "$USE_X11" = "yes")

# Check for GLX

USE_GLX="no"

if test "$USE_X11:$enable_glx" = "no:yes"; then

   AC_MSG_ERROR([VA/GLX explicitly enabled, but VA/X11 isn't built])

fi

if test "$USE_X11" == "yes" -a "$enable_glx" != "no"; then

    PKG_CHECK_MODULES([GLX], [gl x11], [USE_GLX="yes"], [:])

    saved_CPPFLAGS="$CPPFLAGS"

    saved_LIBS="$LIBS"

    CPPFLAGS="$CPPFLAGS $GLX_CFLAGS"

    LIBS="$LIBS $GLX_LIBS"

    AC_CHECK_HEADERS([GL/gl.h GL/glx.h], [:], [USE_GLX="no"])

    AC_CHECK_LIB([GL], [glXCreateContext], [:] [USE_GLX="no"])

    CPPFLAGS="$saved_CPPFLAGS"

    LIBS="$saved_LIBS"

    if test "x$USE_GLX" = "xno" -a "x$enable_glx" = "xyes"; then

       AC_MSG_ERROR([VA/GLX explicitly enabled, but libGL couldn't be found])

    fi

    if test "$USE_GLX" = "yes"; then

        AC_DEFINE([HAVE_VA_GLX], [1], [Defined to 1 if VA/GLX API is built])

    fi

fi

AM_CONDITIONAL(USE_GLX, test "$USE_GLX" = "yes")

# Check for Wayland

WAYLAND_API_VERSION=wayland_api_version

AC_SUBST(WAYLAND_API_VERSION)

USE_WAYLAND="no"

if test "x$enable_wayland" != "xno"; then

    PKG_CHECK_MODULES([WAYLAND], [wayland-client >= wayland_api_version],

        [USE_WAYLAND="yes"], [:])

    if test "x$USE_WAYLAND" = "xno" -a "x$enable_wayland" = "xyes"; then

        AC_MSG_ERROR([wayland explicitly enabled, however $WAYLAND_PKG_ERRORS])

    fi

    if test "$USE_WAYLAND" = "yes"; then

        WAYLAND_PREFIX=`$PKG_CONFIG --variable=prefix wayland-client`

        AC_PATH_PROG([WAYLAND_SCANNER], [wayland-scanner],,

                     [${WAYLAND_PREFIX}/bin$PATH_SEPARATOR$PATH])

        if test "x$WAYLAND_SCANNER" = "x"; then

            AC_MSG_ERROR([wayland-scanner not found: Install it or use --disable-wayland])

        fi

        AC_DEFINE([HAVE_VA_WAYLAND], [1],

                  [Defined to 1 if VA/Wayland API is built])

    fi

fi

AM_CONDITIONAL(USE_WAYLAND, test "$USE_WAYLAND" = "yes")

pkgconfigdir=${libdir}/pkgconfig

AC_SUBST(pkgconfigdir)

# Check for builds without backend

if test "$USE_DRM:$USE_X11:$USE_WAYLAND" = "no:no:no"; then

    AC_MSG_ERROR([Please select at least one backend (DRM, X11, Wayland)])

fi

AC_OUTPUT([

    Makefile

    doc/Makefile

    pkgconfig/Makefile

    pkgconfig/libva-drm.pc

    pkgconfig/libva-glx.pc

    pkgconfig/libva-wayland.pc

    pkgconfig/libva-x11.pc

    pkgconfig/libva.pc

    va/Makefile

    va/drm/Makefile

    va/glx/Makefile

    va/va_version.h

    va/wayland/Makefile

    va/x11/Makefile

])

# Print a small summary

BACKENDS=""

AS_IF([test x$USE_DRM = xyes], [BACKENDS="$BACKENDS drm"])

AS_IF([test x$USE_X11 = xyes], [BACKENDS="$BACKENDS x11"])

AS_IF([test x$USE_GLX = xyes], [BACKENDS="$BACKENDS glx"])

AS_IF([test x$USE_WAYLAND = xyes], [BACKENDS="$BACKENDS wayland"])

echo

echo "libva - ${LIBVA_VERSION} (VA-API ${VA_API_VERSION})"

echo

echo Installation prefix .............. : $prefix

echo Default driver path .............. : $LIBVA_DRIVERS_PATH

echo Extra window systems ............. : $BACKENDS

echo Build documentation .............. : $enable_docs

echo Build with messaging ............. : $enable_va_messaging

echo