#  Copyright 2005 Adam Jackson.
#
#  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
#  on 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
#  ADAM JACKSON 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.
#
# Process this file with autoconf to produce a configure script

AC_PREREQ(2.57)
AC_INIT([xf86-video-ati],
        6.7.197,
        [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg],
        xf86-video-ati)

AC_CONFIG_SRCDIR([Makefile.am])
AM_CONFIG_HEADER([config.h])
AC_CONFIG_AUX_DIR(.)

AM_INIT_AUTOMAKE([dist-bzip2])

AM_MAINTAINER_MODE

# Checks for programs.
AC_DISABLE_STATIC
AC_PROG_LIBTOOL
AC_PROG_CC

if test "x$GCC" = "xyes"; then
	CPPFLAGS="$CPPFLAGS -Wall"
fi

AH_TOP([#include "xorg-server.h"])

AC_ARG_WITH(xorg-module-dir,
            AC_HELP_STRING([--with-xorg-module-dir=DIR],
                           [Default xorg module directory [[default=$libdir/xorg/modules]]]),
            [moduledir="$withval"],
            [moduledir="$libdir/xorg/modules"])

AC_ARG_ENABLE(dri, AC_HELP_STRING([--disable-dri],
                                  [Disable DRI support [[default=auto]]]),
              [DRI="$enableval"],
              [DRI=auto])

AC_ARG_ENABLE(exa,
              AC_HELP_STRING([--disable-exa],
                             [Disable EXA support [[default=enabled]]]),
              [EXA="$enableval"],
              [EXA=yes])

AC_ARG_WITH(xserver-source,AC_HELP_STRING([--with-xserver-source=XSERVER_SOURCE],
                                          [Path to X server source tree]),
                           [ XSERVER_SOURCE="$withval" ],
                           [ XSERVER_SOURCE="" ])

# Checks for extensions
XORG_DRIVER_CHECK_EXT(XINERAMA, xineramaproto)
XORG_DRIVER_CHECK_EXT(RANDR, randrproto)
XORG_DRIVER_CHECK_EXT(RENDER, renderproto)
XORG_DRIVER_CHECK_EXT(XV, videoproto)
XORG_DRIVER_CHECK_EXT(XF86MISC, xf86miscproto)
XORG_DRIVER_CHECK_EXT(DPMSExtension, xextproto)

# Checks for pkg-config packages
PKG_CHECK_MODULES(XORG, [xorg-server xproto fontsproto $REQUIRED_MODULES])
sdkdir=$(pkg-config --variable=sdkdir xorg-server)

# Checks for libraries.

# Checks for header files.
AC_HEADER_STDC

if test "$DRI" != no; then
	AC_CHECK_FILE([${sdkdir}/dri.h],
                      [have_dri_h="yes"], [have_dri_h="no"])
	AC_CHECK_FILE([${sdkdir}/sarea.h],
                      [have_sarea_h="yes"], [have_sarea_h="no"])
	AC_CHECK_FILE([${sdkdir}/dristruct.h],
                      [have_dristruct_h="yes"], [have_dristruct_h="no"])
	AC_CHECK_FILE([${sdkdir}/damage.h],
                      [have_damage_h="yes"], [have_damage_h="no"])
fi

AC_MSG_CHECKING([whether to include DRI support])
if test x$DRI = xauto; then
	if test "$have_dri_h" = yes -a \
                "$have_sarea_h" = yes -a \
                "$have_dristruct_h" = yes; then
		DRI="yes"
	else
		DRI="no"
	fi
fi
AC_MSG_RESULT([$DRI])

AM_CONDITIONAL(DRI, test x$DRI = xyes)
if test "$DRI" = yes; then
	PKG_CHECK_MODULES(DRI, [libdrm >= 2.2 xf86driproto])
        AC_DEFINE(XF86DRI,1,[Enable DRI driver support])
        AC_DEFINE(XF86DRI_DEVEL,1,[Enable developmental DRI driver support])
	if test "$have_damage_h" = yes; then
		AC_DEFINE(DAMAGE,1,[Use Damage extension])
	fi
fi

save_CFLAGS="$CFLAGS"
CFLAGS="$XORG_CFLAGS"
AC_CHECK_HEADER(xf86Modes.h,[XMODES=yes],[XMODES=no],[#include "xorg-server.h"])
CFLAGS="$save_CFLAGS"

# Note that this is sort of inverted from drivers/ati/Imakefile in
# the monolith.  We test for foo, not for !foo (i.e. ATMISC_CPIO, not
# ATIMISC_AVOID_CPIO), but the defines are negative.  So beware.  Oh yeah,
# TV_OUT is the special case where it's a positive define, not AVOID_TV_OUT.

# AVOID_CPIO: Only x86, amd64, and alpha are cool with CPIO.  It needs a
# little-endian, undirected PIO space of at least 64kB.
# AVOID_DGA: ???
# ATI_TV_OUT: This only works on x86.

ATIMISC_CPIO=no
ATIMISC_DGA=yes
ATIMISC_TV_OUT=no

case $host_cpu in
  i*86)
    ATIMISC_TV_OUT=yes
    ATIMISC_CPIO=yes
    ;;
  x86_64|amd64|alpha|ia64)
    ATIMISC_CPIO=yes
    ;;
  sparc)
    ATIMISC_DGA=no
    ;;
  *)
    ;;
esac

AC_MSG_CHECKING([whether to include PIO support])
AM_CONDITIONAL(ATIMISC_CPIO, test "x$ATIMISC_CPIO" = xyes)
if test "x$ATIMISC_CPIO" = xyes; then
	AC_MSG_RESULT([yes, PIO])
else
	AC_DEFINE(AVOID_CPIO, 1, [Avoid PIO and use MMIO for atimisc.])
	AC_MSG_RESULT([no, MMIO])
fi

AC_MSG_CHECKING([whether to include DGA support])
AC_MSG_RESULT([$ATIMISC_DGA])
AM_CONDITIONAL(ATIMISC_DGA, test "x$ATIMISC_DGA" = xyes)
if ! test "x$ATIMISC_DGA" = xyes; then
	AC_DEFINE(AVOID_DGA, 1, [Do not build DGA support.])
fi

AC_MSG_CHECKING([whether to include TV Out support])
AC_MSG_RESULT([$ATIMISC_TV_OUT])
AM_CONDITIONAL(ATIMISC_TV_OUT, test "x$ATIMISC_TV_OUT" = xyes)
if test "x$ATIMISC_TV_OUT" = xyes; then
	AC_DEFINE(TV_OUT, 1, [Build TV-Out support for atimisc.])
fi

AC_DEFINE(USE_XAA, 1, [Build support for XAA])

# Properly handle EXA.
AC_MSG_CHECKING([whether to enable EXA support])
if test "x$EXA" = xyes; then
        AC_MSG_RESULT(yes)

        SAVE_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $XORG_CFLAGS"
        AC_CHECK_HEADER(exa.h,
                       [have_exa_h="yes"], [have_exa_h="no"])
        CPPFLAGS="$SAVE_CPPFLAGS"
else
        AC_MSG_RESULT(no)
fi 

SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $XORG_CFLAGS"
if test "x$have_exa_h" = xyes; then
        AC_MSG_CHECKING([whether EXA version is at least 2.0.0])
        AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
#include "exa.h"
#if EXA_VERSION_MAJOR < 2
#error OLD EXA!
#endif
                          ]])],
                          [USE_EXA=yes],
                          [USE_EXA=no])
        AC_MSG_RESULT($USE_EXA)

        if test "x$USE_EXA" = xyes; then
                AC_DEFINE(USE_EXA, 1, [Build support for Exa])
        fi
fi

AC_CHECK_DECL(xf86XVFillKeyHelperDrawable,
	      [AC_DEFINE(HAVE_XV_DRAWABLE_HELPER, 1, [Have xf86XVFillKeyHelperDrawable prototype])],
	      [],
	      [#include <xf86xv.h>])

AC_CHECK_DECL(xf86ModeBandwidth,
	      [AC_DEFINE(HAVE_XF86MODEBANDWIDTH, 1, [Have xf86ModeBandwidth prototype])],
	      [],
	      [#include "xorg-server.h"
	       #include "xf86Modes.h"])

AC_CHECK_DECL(xf86_crtc_clip_video_helper,
	      [AC_DEFINE(HAVE_XF86CRTCCLIPVIDEOHELPER, 1, [Have xf86_crtc_clip_video_helper prototype])],
	      [],
	      [#include <X11/Xmd.h>
	       #include "xorg-server.h"
	       #include "xf86i2c.h"
	       #include "xf86Crtc.h"])

AC_CHECK_DECL(XSERVER_LIBPCIACCESS,
	      [XSERVER_LIBPCIACCESS=yes],[XSERVER_LIBPCIACCESS=no],
	      [#include "xorg-server.h"])

AM_CONDITIONAL(XMODES, test "x$XMODES" = xno)

if test "x$XSERVER_SOURCE" = x; then
        if test -d ../../xserver; then
                XSERVER_SOURCE="`cd ../../xserver && pwd`"
        fi
fi

if test -d "$XSERVER_SOURCE"; then
        case "$XSERVER_SOURCE" in
        /*)
                ;;
        *)
                XSERVER_SOURCE="`cd $XSERVER_SOURCE && pwd`"
        esac
        if test -f src/modes/xf86Modes.h; then
                :
        else
                ln -sf $XSERVER_SOURCE/hw/xfree86/modes src/modes
        fi

        if test -f src/parser/xf86Parser.h; then
                :
        else
                ln -sf $XSERVER_SOURCE/hw/xfree86/parser src/parser
        fi
fi
if test "x$XMODES" = xyes; then
        AC_MSG_NOTICE([X server has new mode code])
        AC_DEFINE(XMODES, 1,[X server has built-in mode code])
        XMODES_CFLAGS=
else
        if test -f src/modes/xf86Modes.h -a -f src/parser/xf86Parser.h; then
                AC_MSG_NOTICE([X server is missing new mode code, using local copy])
        else
                AC_MSG_ERROR([Must have X server >= 1.3 source tree for mode setting code. Please specify --with-xserver-source])
        fi
        XMODES_CFLAGS='-DXF86_MODES_RENAME -I$(top_srcdir)/src -I$(top_srcdir)/src/modes -I$(top_srcdir)/src/parser'
fi

AC_SUBST([XMODES_CFLAGS])

CPPFLAGS="$SAVE_CPPFLAGS"

AM_CONDITIONAL(USE_EXA, test "x$USE_EXA" = xyes)

if test "x$XSERVER_LIBPCIACCESS" = xyes; then
    PKG_CHECK_MODULES([PCIACCESS], [pciaccess >= 0.8.0])
    XORG_CFLAGS="$XORG_CFLAGS $PCIACCESS_CFLAGS"
fi
AM_CONDITIONAL(XSERVER_LIBPCIACCESS, test "x$XSERVER_LIBPCIACCESS" = xyes)

AC_SUBST([XORG_CFLAGS])
AC_SUBST([DRI_CFLAGS])
AC_SUBST([moduledir])

DRIVER_NAME=ati
AC_SUBST([DRIVER_NAME])

XORG_MANPAGE_SECTIONS
XORG_RELEASE_VERSION
XORG_CHECK_LINUXDOC

AC_OUTPUT([
	Makefile
	src/Makefile
	man/Makefile
])