Changes for v0.3.9 (final).

to pop themselves down while the simulator is paused.

The problem was with the "real time" queue in the event manager,
causing the third argument of Nasal's settimer() (a flag for "sim
time") to be ignored.  Inverts the default sense of the argument, as
there are lots of uses of settimer() in the current code, almost none
of which want to use real time.

Note this fix introduces a header file incompatibility in SimGear --
be sure to update.

.cvsignore

@@ -7,3 +7,13 @@ config.cache
 config.log
 config.status
 configure
+do-config.sh
+.cdtproject
+.project
+config.guess
+config.sub
+depcomp
+INSTALL
+install-sh
+missing
+mkinstalldirs

Doxyfile

@@ -22,7 +22,7 @@ PROJECT_NAME           = SimGear
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.3.0
+PROJECT_NUMBER         = 0.3.9
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put. 
@@ -64,14 +64,14 @@ EXTRACT_STATIC         = NO
 # various overviews, but no documentation section is generated. 
 # This option has no effect if EXTRACT_ALL is enabled. 
 
-HIDE_UNDOC_MEMBERS     = NO
+HIDE_UNDOC_MEMBERS     = YES
 
 # If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all 
 # undocumented classes that are normally visible in the class hierarchy. 
 # If set to NO (the default) these class will be included in the various 
 # overviews. This option has no effect if EXTRACT_ALL is enabled. 
 
-HIDE_UNDOC_CLASSES     = NO
+HIDE_UNDOC_CLASSES     = YES
 
 # If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will 
 # include brief member descriptions after the members that are listed in 
@@ -298,6 +298,7 @@ WARN_LOGFILE           =
 # with spaces. 
 
 INPUT                  = \
+        DoxygenMain.cxx \
 	simgear/bucket \
 	simgear/compiler.h \
 	simgear/constants.h \
@@ -307,13 +308,14 @@ INPUT                  = \
 	simgear/magvar \
 	simgear/math \
 	simgear/misc \
+        simgear/props \
 	simgear/route \
+	simgear/scene \
 	simgear/screen \
 	simgear/serial \
 	simgear/sg_inlines.h \
 	simgear/sg_traits.hxx \
-	simgear/sg_zlib.h \
-	simgear/sky \
+        simgear/sound \
 	simgear/threads \
 	simgear/timing \
 	simgear/xml
@@ -335,7 +337,7 @@ RECURSIVE              = YES
 # excluded from the INPUT source files. This way you can easily exclude a 
 # subdirectory from a directory tree whose root is specified with the INPUT tag. 
 
-EXCLUDE                = simgear/metakit simgear/zlib
+EXCLUDE                = simgear/scene/sky/clouds3d
 
 # If the value of the INPUT tag contains directories, you can use the 
 # EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude 
@@ -385,7 +387,7 @@ FILTER_SOURCE_FILES    = NO
 # of all compounds will be generated. Enable this if the project 
 # contains a lot of classes, structs, unions or interfaces. 
 
-ALPHABETICAL_INDEX     = NO
+ALPHABETICAL_INDEX     = YES
 
 # If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then 
 # the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns 
@@ -514,7 +516,7 @@ COMPACT_LATEX          = NO
 # by the printer. Possible values are: a4, a4wide, letter, legal and 
 # executive. If left blank a4wide will be used. 
 
-PAPER_TYPE             = a4wide
+PAPER_TYPE             = letter
 
 # The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX 
 # packages that should be included in the LaTeX output. 

DoxygenMain.cxx

@@ -0,0 +1,108 @@
+/* This is a dummy code file that only contains doxygen main page
+   documentation.  It has a .cxx extension so that emacs will happily
+   autoindent correctly. */
+
+/** \mainpage SimGear
+ * Simulation, Visualization, and Game development libraries.
+
+ * \section intro Introduction
+ *
+ * SimGear is a collection of libraries which provide a variety of
+ * functionality useful for building simulations, visualizations, and
+ * even games.  All the SimGear code is designed to be portable across
+ * a wide variety of platforms and compilers.  It has primarily been
+ * developed in support of the FlightGear project, but as development
+ * moves forward, we are generalizing the code to make more of it
+ * useful for other types of applications.
+ *
+ * Some of the functionality provide includes
+ *
+ * - Compiler and platform abstractions for many tricky differences.
+ *   (compiler.h)
+ *
+ * - A whole earth tiling/indexing scheme.  (SGBucket)
+ *
+ * - A console debugging output scheme that tracks severity and
+ *   category that can be completely compiled out for a final build release.
+ *   (logstream.hxx)
+ *
+ * - Code to manage "real" time (SGTime), time zones (SGTimeZone), and
+ *   millesecond time differences (SGTimeStamp).
+ *
+ * - Code to calculate accurate positions of sun, moon, stars, and
+ *   planets for a given time, date, season, earth location, etc.
+ *   (SGEphemeris)
+ *
+ * - Code to render a realistic sky dome, cloud layers, sun, moon,
+ *   stars, and planets all with realistic day/night/sunset/sunrise
+ *   effects.  Includes things like correct moon phase, textured moon,
+ *   sun halo, etc. (SGSky is built on top of SGCloudLayer ...)
+ *
+ * - Simple serial (SGSerial), file (SGFile), socket (SGSocket), and
+ *   UDP socket (SGSocketUDP) I/O abstractions.
+ *
+ * - Code to calculate magnetic variation. (SGMagVar)
+ *
+ * - A variety of classes and functions for interpolation tables
+ *   (SGInterpTable), least squares computation (leastsqs.hxx), 3D
+ *   point/vectors (Point3D), 3D polar math and conversions (polar3d.hxx),
+ *   WGS-84 math and conversions (sg_geodesy.hxx), random number abstraction
+ *   (sg_random.h), STL conglomerates for common list types (sg_types.hxx),
+ *   and other vector and linear algebra routines (vector.hxx)
+ *
+ * - An abstraction to hide platform dependent path naming schemes. (SGPath)
+ *
+ * - A C++ streams wrapper to handle compress input/output streams.
+ *   (sg_gzifstream)
+ *
+ * - An optimized "property manager" which associates ascii property
+ *   names with their corresponding value.  This can be a great way to build
+ *   loose linkages between modules, or build linkages/connections that can
+ *   be determined from config files or at runtime.  (SGPropertyNode)
+ *   Also included is a set of functions to dump the property tree into a
+ *   standard xml file and subsequently read/parse a standard xml file and
+ *   rebuild the associated property tree.  (props_io.hxx)
+ *
+ * - Scene management and drawing routines:
+ *   - material property management
+ *   - object management
+ *   - terrain tile management and paging
+ *   - sky dome rendering (with ephemeral objects)
+ *
+ * - Code to handle screen dumps (screen-dump.hxx) and ultra-hires
+ *   tile rendered screen dumps (tr.h)
+ *
+ * - A sound effects manager.  (SGSoundMgr, SGSimpleSound, SGSound)
+ *
+ * - A threading abstraction.  (SGThread)
+ *
+ * - A simple but highly functional XML parser that interfaces nicely
+ *   with the property manager.  (easyxml.hxx)
+
+ * \section supports Supported Platforms
+ * SimGear has been built on the following platforms:
+ *
+ *   - Linux (x86)
+ *   - Windows (MSVC, Cygwin, Mingwin)
+ *   - SGI (native compilers)
+ *   - Mac OS X
+ *   - FreeBSD
+ 
+ * \section depends Dependencies
+ *
+ * SimGear depends on several other open source packages.  These must
+ * be installed before SimGear can be installed:
+ *
+ *   - glut and opengl
+ *   - plib (http://plib.sf.net)
+ *   - metakit
+ *   - zlib
+ *   - libjpeg (optional)
+ *   - pthread (optional)
+ 
+ * \section license Licensing
+ *
+ * SimGear is licensed under the terms of the LGPL
+
+ */
+

Makefile.am

@@ -1,8 +1,8 @@
 EXTRA_DIST = \
 	acinclude.m4 \
 	autogen.sh \
+	DoxygenMain.cxx \
 	README.MSVC \
-	README.metakit \
 	README.zlib \
 	SimGear.dsp \
 	SimGear.dsw
@@ -10,7 +10,7 @@ EXTRA_DIST = \
 SUBDIRS	= src-libs simgear
 
 dist-hook:
-	(cd $(top_srcdir); $(HOME)/projects/FlightGear-0.7/admin/am2dsp.pl)
+	(cd $(top_srcdir); $(HOME)/Projects/FlightGear/admin/am2dsp.pl)
 
 #
 # Rule to build RPM distribution package

NEWS

@@ -1,3 +1,169 @@
+New in 0.3.9
+* November 17, 2005
+
+* Add support for OpenAL 1.1 (with a separate alut library.)
+* Add support for volumetric shadows.  Aircraft can cast shadows on themselves
+  as well as onto the ground (by Harald Johnsen.)
+* New 3d volumetric clouds by Harald Johnsen (along with several rounds of
+  followup fixes and improvements.)
+* Remove Mark Harris's old 3d clouds because they were never properly
+  integrated.  And we now have new 3d clouds.
+* Add support for seasonal textures (with a set of winter textures added
+  to FlightGear.)
+* Updated Nasal scripting system.  Adds several new syntax convenience
+  features, fixes parser bugs, fixes several internal bugs.
+* Our 3d cockpit jitter problem is fixed (woohoo!)
+* Add code to support rendering to a texture.
+* Allow "tip" popups to pop themselves down after the appropriate
+  timeout, even if the sim time is paused.
+* Various low model level animation fixes and additions ... color,
+  transparency, 'chrome' effects, randomized spin, etc.
+* Create our own portable stdint.h implementation.
+* Fixed several memory leaks.
+* removeChildren() added to the property system.
+* Fix many cases of 'const'.
+* Fixes for cygwin, solaris/sun, Mac OS X, MSVC, gcc-3.4.x.
+
+
+New in 0.3.8
+* January 18, 2005
+
+* Configure script does a sanity check for the existence of openal.
+* Better pthreads detection for FreeBSD.
+* Abstract out the location of gl.h, glu.h, and glut.h so we can more
+  easily support MacOS which puts these in an oddball location.
+* Added two new debug output types for instrumentation and systems.
+* Add a name parameter to the waypoint class for supporting a route
+  manager in the flightgear gps module.
+* Make display list usage optional.
+* Event manager: specifying a zero delay will force event execution in
+  the next frame rather than entering an infinite loop.
+* gcc-4.0 fix.
+* Fixes to property tree loading and saving.
+* Make volume inaudible at startup.
+* Solaris fixes.
+* For low density cloud coverage, blend the layer to nothing as we pass
+  through instead of fully engulfing the aircraft in the cloud.
+* Add several new capabilities to the texture management code for building
+  normal maps and doing some simple on-the-fly effects on textures.
+* Better error message for sound problems.
+* Add support for binding a thread to a specific CPU.
+
+
+New in 0.3.7
+* October 12, 2004
+
+* Add support for parsing xml from an in memory buffer, not just a file.
+* Don't reduce visibility for a "clear" cloud layer.
+* Add support for audio orientation (direction and cone) for internal
+  view and tower view.
+* Add support for drawing from display lists rather than in immediate mode.
+  This provides a big performance improvement on many systems.
+
+
+New in 0.3.6
+* July 29, 2004
+
+* Better MinGW support
+* A bit better handling of OpenAL under Cygwin
+* Switched audio system from plib's "sl/sm" to OpenAL.
+* Add support for scaling an object based on distance.  The scaling
+  factor is determined by a lookup table based on distance.
+* Add a "flash" animation type.
+* Fix cloud positioning/animation bugs.
+* Fix an off-by-one error in props_io.cxx
+* Clip audio gain (volume) to 1.0
+
+
+New in 0.3.5
+* March 26, 2004
+
+* Added Andy's nasal interpreter for small built in scripting tasks.
+  Nasal integrates nicely with FlightGear's property system.
+* Added new (much simpler) metar parsing code (removed older more
+  complex code.)
+* Support VASI/PAPI lights correctly.
+* Fixes to cloud animation.
+* Updates to sky dome coloring as well as sun/moon coloring.
+* Vary environment lighting with visibility (subtlety.)
+* Support control of alpha test in model animation.
+* Complete rewrite of the event manager.
+* Updates to low level socket code to make it more flexible.
+* Win32 serial port communication fixes.
+* sg_geodesy rewritten to be more accurate and robust and symmetric.
+
+
+New in 0.3.4
+* October 22, 2003
+
+* Removed Metakit, FlightGear no longer uses it.
+* Removed all glut dependencies from SimGear.
+* Moved FGEventMgr and FGSubsystemMgr over to SimGear.
+* Some more incremental work on 3D clouds.
+* Added some "fastmath" functions.
+* Some lighting tweaks and fixes (especially for taxiways.)
+* Added support for "blend" and "scale" and "texture" animations.
+* Added support for animating rotations around an arbitrary axis (so the
+  aircraft designer isn't forced to figure out animations as a combination
+  of rotations around X, Y, and X axes.
+* Updates to sky dome modeling and make cloud layers follow the curve
+  of the earth (sort of.)
+* Updates to sky dome, cloud, and sunrise/sunset color and lighting
+  effects to make them more realistic and lifelike.
+* Better support for detecting and using OpenGL extensions at run time.
+* Add support for win32-pthreads in MSVC.NET
+* Various MSVC fixes.
+* Various Solaris fixes.
+* Various cygwin/mingwin fixes.
+* Various Mac OS X fixes.
+* Various Irix fixes.
+
+
+New in 0.3.3
+* June 3, 2003
+
+* Fix a compile problem for cygwin
+* Updated/tweaked doxygen documentation in several areas
+
+
+New in 0.3.2
+* June 2, 2003
+
+* Moved quite a bit of low level model management and "state"
+  management code from FlightGear into SimGear and did a substantial
+  amount of restructuring and dependency clean up in the process.
+  Created a "scene" subdirectory with sub-subdirectories for material
+  management, basic model and model animation management, sky
+  rendering, and low level loaders for the "TerraGear" tile object format.
+* Removed support of the flat shaded and non-textured material
+  property variants.  You can still do these things, but extra states
+  are no longer set up automatically.
+* Removed 3d clouds from the default build ... these need a maintainer
+  or better yet, a complete plib-based rewrite.
+* Moved the FlightGear sound effect manager code over to SimGear.
+* Updated the cloud layer surface to better follow the inverted bowl
+  shape.
+* Much work on cloud/sky coloring, and also much work on
+  sunset/sunrise coloring.
+* Fixed an obscure bug in cloud texture loading which caused each
+  cloud texture to be loaded 5 times.  Ouch!
+* Various class and function renaming to make them better fit into the
+  standard SimGear naming scheme.
+* Added some additional convenience functions to the SGPath class.
+* Upgraded the distributed version of metakit.
+* FreeBSD fixes.
+* Irix fixes (better STL/ISO C++ header support.)
+* Mingwin fixes.
+* Better MacOS support
+* MSVC fixes.
+
+
+New in 0.3.1
+* December 4, 2002
+
+* Fix a major packaging blunder with several missing files.
+
+
 New in 0.3.0
 * December 3, 2002
 
@@ -15,7 +181,7 @@ New in 0.2.0
 * Removed efence support (in favor of valgrind.)
 
 * Added a javascript interpreter.
-* SGSocket reimplimented on top of plib/net libs.
+* SGSocket reimplemented on top of plib/net libs.
 * Added a new random number generation algorithm.
 * Total rewrite of the strutils package.
 
@@ -25,7 +191,7 @@ New in 0.2.0
 * Mac OS X fixes.
 * Irix fixes.
 * Code clean ups to remove warning messages.
-* Optimizations in sg_binobj to reduce the amout of memory copying
+* Optimizations in sg_binobj to reduce the amount of memory copying
   needed when loading a binobj format file.
 * Fixed a couple places where variables could be used before they were
   initialized.
@@ -45,7 +211,7 @@ New in 0.0.18
 * Upgrade to metakit-2.4.2-32.tar.gz (latest upstream release)
 * Added support for point objects in the scenery file format.
 * Additions to the binary file format to make it *much* more flexible.
-  For each major primative type: points, triangles, fans, and strips, you
+  For each major primitive type: points, triangles, fans, and strips, you
   can specify an index list of vertices, normals, colors, and texture
   coordinates.  You can skip any of these you like to save on space.
 * Added support for new file features in the binary -> ascii scenery file
@@ -96,7 +262,7 @@ New in 0.0.17pre1
 
 New in 0.0.16
 * July 12, 2001
-* Various changes to the property manager implimentation to better support
+* Various changes to the property manager implementation to better support
   dumping out the desired portions of the property tree to file.
 * Don't compile the metakit demos by default (causes problems for Irix)'
 * Other various tweaks for Irix.
@@ -139,7 +305,7 @@ New in 0.0.15
   read/write routines.
 * Added doxygen comments for all public interface code.  Documentation
   can be accessed via the SimGear web page.
-* Many FG -> SG name space changes for better consistancy throughout
+* Many FG -> SG name space changes for better consistency throughout
   this package.
 * Added property aliases, repeated name tags, and a general xml
   inclusion facilities.  Many other property manager clean ups
@@ -230,4 +396,4 @@ New in 0.0.4
 
 
 New in 0.0.3
-* Release that conincides with FlightGear-0.7.2
+* Release that coincides with FlightGear-0.7.2

README.OpenAL

@@ -0,0 +1,12 @@
+[This file is mirrored in both the FlightGear and SimGear packages.]
+
+You *must* have the development components of OpenAL installed on your system
+to build FlightGear!"  You can get a copy here:
+
+    http://www.openal.org
+
+Build notes:
+
+The OpenAL developers do not make "versioned" releases so we recommend that
+you pull the latest version via anonymous CVS (follow the instructions at
+the OpenAL web site) and build/install that.

README.metakit

@@ -1,285 +0,0 @@
-For your convenience (and with the author's permission) a copy of the
-MetaKit source is bundled with SimGear in $(top_srcdir)/src-libs/.
-You must have metakit installed before you can build SimGear.
-
-- Most linux distributions have a metakit package.  For linux
-  developers, we recommend ysou install your distributions package
-  rather than building from source.
-
-- For developers on most other platforms, you will have to build
-  metakit from source and install it yourself.  For your convenience a
-  tar ball of the metakit source is included with the simgear source
-  distribution.  Untar the metakit source, and follow the included
-  build and installation instructions.
-
-Once metakit is installed you can return to configuring and building
-Simgear.
-
-=============================================================================
-
-Potentially important build note:
-
-  Later on when you are linking programs with -lmk4 (i.e. FlightGear or one
-  of it's associated programs) if you come across an error similar to the
-  following:
-
-     c++  -Wall -O2 -L/usr/local/lib -o gensimple  gensimple.o libAirports.a
-          -lsgdebug -lsgmisc -lmk4 -lz -lm 
-     /usr/local/lib/libmk4.a(view.o)(.text+0x1c8):view.cpp: multiple definition
-          of `c4_View::~c4_View(void)'
-    libAirports.a(simple.o)(.text$_$_7c4_View+0x0):simple.cxx: first defined
-          here
-    collect2: ld returned 1 exit status
-    make[2]: *** [gensimple] Error 1
-    make[2]: Leaving directory `/home/curt/FlightGear-0.7.7/src/Airports'
-    make[1]: *** [all-recursive] Error 1
-    make[1]: Leaving directory `/home/curt/FlightGear-0.7.7/src'
-    make: *** [all-recursive] Error 1
-
-  Then you need to come back and rebuild Metakit with the -DNDEBUG flag.
-  For unix/cygwin systems, modify the unix/Makefile file and add -DNDEBUG
-  to the CFLAGS line.
-
-Now we return you to the official metakit readme ... :-)
-
-
-The MetaKit Library 2.01                                            March 2000
-==============================================================================
-
-
-WHAT IT IS - MetaKit is an embeddable database which runs on Unix, Windows,
-    Macintosh, and other platforms.  It lets you build applications which
-    store their data efficiently, in a portable way, and which will not need a
-    complex runtime installation.  In terms of the data model, MetaKit takes
-    the middle ground between RDBMS, OODBMS, and flat-file databases - yet it
-    is quite different from each of them.
-
-WHAT IT ISN'T - MetaKit is not: 1) multi-user/-threading, 2) scalable to
-    gigabytes, 3) proprietary software, 4) full of bugs, 5) just a toy.
-
-TECHNOLOGY - Everything is stored variable-sized yet with efficient positional
-    row access.  Changing an existing datafile structure is as simple as re-
-    opening it with that new structure.  All changes are transacted.  You can
-    mix and match software written in C++, Python, and Tcl.  Things can't get
-    much more flexible...
-
-CORE - The Metakit core library is written in C++.  It has a code footprint of
-    just over 100 Kb on Windows.  It can be used as DLL, or linked statically.
-    Debug builds include extensive assertion checks to catch problems early.
-
-PYTHON - The binding for Python is called "Mk4py".  It uses SCXX by Gordon
-    McMillan as C++ glue interface.  The source is in directory "python/".
-
-TCL/TK - The MK extension for Tcl is called "Mk4tcl".  It is being used in a
-    number of commercial projects, for in-house use as well as in commercially
-    distributed products.  The source is in directory "tcl/".
-
-LICENSE AND SUPPORT - MetaKit 2.01 is distributed as open source software (the
-    X/MIT-style license is at the end of this document).  Commercial support
-    is available through an Enterprise License, see the URL mentioned below.
-
-DOCUMENTATION - All documentation uses HTML.  The main page is "MetaKit.html",
-    which leads to the rest of the documentation in the "doc/" directory.
-
-WEBSITE URLS - The main pages on the world wide web, for news and downloads:
-    Homepage:       http://www.equi4.com/metakit/
-    Python news:    http://www.equi4.com/metakit/python.html
-    Tcl/Tk news:    http://www.equi4.com/metakit/tcl.html
-    License info:   http://www.equi4.com/metakit/license.html
-    Contact info:   http://www.equi4.com/contact.html
-
-
-INSTALLATION
-============
-
-Starting with this release, all platform builds and language bindings are now
-designed to work from a single common "builds/" directory.  It turns out to
-be impossible to keep build side-effects limited to *just* this directory
-(CodeWarrior can't be told where to place its temp data, and Visual C++ still
-alters a few files next to the project ".dsw" file, to name two offenders).
-
-UNIX
-
-    It is no longer advised to build the Unix code in the "unix/" directory.
-    Instead, you should perform the following steps:
-        % cd builds
-        % ../unix/configure
-        % make
-        % make test
-    And optionally (this only installs the core lib, not script extensions):
-        % make install
-
-    By switching to the "builds/" directory, you will keep the distribution
-    directory tree 100% unaltered.  All changes are made in this subdir, and
-    all final build results are left behind in this same subdir.
-
-    Nastiness: if you build Mk4tcl, please do a "make Mk4tcl.so" as well.
-    And if you intend to create the Python extension, do a "make Mk4py.so".
-    The "libmk4tcl.so.0.0.0" and "libMk4py.so.0.0.0" targets are bogus ones.
-
-    You will probably have to make changes in the makefile to locate the
-    proper includes and libs for Python (Tcl has been fixed, see "--with-tcl).
-    You probably only need to adjust "CXX_SWITCHES_PY" to find the headers.
-
-    To build with STL containers and strings, you can do the following:
-        make CXXFLAGS='-Dq4_STD' test   # add -O3 etc, as needed
-    This passes the test suite on Linux RedHat 5.2 with gcc 2.95-2.
-
-    See below for some platform-specific build notes.
-
-WINDOWS
-
-    There is a "win/" directory which contains subdirectories for a number of
-    compiler systems.  MetaKit has been built with many different compilers
-    in the past (Microsoft, Borland, Watcom, Symantec, Metrowerks, Optima),
-    but to preserve my sanity (there are 12 configurations for MSVC6 alone!),
-    I am limiting myself to MSVC6, MWCW5, Borland C++ Builder 4, and Cygwin.
-
-    The MS Visual C++ 6.0 project is "win/msvc60/mksrc.dsw", with subprojects
-    for the C++ demo (mkdemo), building dll's (mkdll), static libs (mklib),
-    regression tests (mktest), as well as Tcl (mktcl) and Python (mkpython).
-    It has been set up to place all intermediate files and final results in
-    the "builds/" subdirectory, even though you'll launch it from "win/".
-
-    To build with STL containers and strings under MSVC, define "q4_STD".
-    To build with MFC containers and strings under MSVC, define "q4_MFC".
-
-    The Metrowerks Codewarrior project is in the "mac/" directory, and can be
-    used to build both Mac and Windows versions (on either Mac *or* Windows).
-    The core libraries are built with "mac/cw5.mcp", demos / tests are built
-    with "cw5apps.mcp", Tcl is "cw5tcl.mcp", and Python is "cw5python.mcp".
-
-    The Borland C++ Builder projects have not yet been incorporated in this
-    release, but the "KitViewer" application is an example of how to use BCB.
-
-    The Cygwin build (B20.1 / gcc 2.95.2) is different, because it uses the
-    unix autoconf system, and must be launched as described above for UNIX.
-    I have upgraded to the latest development of libtool to be able to build
-    DLL's with Cygwin.  You can build the "-mno-cygwin" version by editing
-    the Makefile by hand and adding that option to CXXFLAGS.
-
-    Rob Bloodgood adds that the following GCC options are for maximum code
-    efficiency on x86 hardware: "-O2 -m486 -malign-loops=2 -malign-jumps=2".
-    I have not yet tried this myself, but am passing on the tip.
-
-MACINTOSH
-
-    The Mac version requires Metrowerks CodeWarrior 5.  See the info above
-    in the Windows section (MWCW is multi-platform).  The projects are all
-    located in the "mac/" folder, which is also where MWCW will place its own
-    "... Data" folders with intermediate results.  As with all other setups,
-    final results are made to end up in the "builds/" directory.
-
-    Static 68K builds appear to work fine, the 68K CFM variants will need
-    some more work (I couldn't get the libraries to export their symbols).
-
-
-PLATFORM-SPECIFIC NOTES
-=======================
-
-* Linux RH 5.2 / gcc 2.95.2
-
-    Builds with gcc 2.95.2 work out of the box.  The Tcl extension ends up as
-    ".libs/libmk4tcl.so.0.0.0" (to please libtool), and should be renamed to
-    "Mk4tcl.so".  Similarly, ".libs/libMk4py.so.0.0.0" is in fact the Python
-    extension, and *must* be renamed to "Mk4py.so" to call it from Python.
-
-    The core MK libs end up as ".libs/libmk4.a" and ".libs/libmk4.so.0.0.0".
-
-* Solaris 2.6 / gcc 2.8.1
-
-    The Solaris builds are nasty for several reasons:
-
-    - I do not own such a machine, and often have to make arrangements
-      (or fight limited space on one of the machines I can telnet to).
-    - The gcc 2.8.1 optimizer appears to be buggy, I have had to turn off
-      the default "-O3" flag to prevent compiler crashes (several files).
-      This problems appears to be resolved with gcc 2.95.
-    - Locking on Solaris (especially w.r.t NFS) remains a mystery to me.
-      The Tcl and Python extensions both use locking (the core not yet).
-      See tcl/Mk4tcl.cpp around line 520, and python/PyStorage.cpp around
-      line 80 for details.  It's all pretty messy, and not 100% correct.
-
-    Despite this, I'm doing my best to resolve these issues.  Having a solid
-    build of the core *and* of Tcl / Python extensions is quite important.
-
-* Other Unix systems
-
-    No further notes, though many systems will build fine out of the box.
-
-* Windows
-
-    MSVC 6 builds MK as static lib and as DLL (universal config, I have not
-    yet created build versions with MFC or STL, mainly because MK can now be
-    used in all contexts regardless of how it was built).  The Python and Tcl
-    extensions build as dynamic extensions (a static build is easy to add).
-
-    MWCW 5 builds MK as static lib and as DLL (interestingly enough, the DLL
-    is slightly smaller than MSVC 6 - 102 vs 108 Kb - when their runtimes are
-    linked in dynamically as well).  I have not added Win builds for Tcl or
-    Python, since MSVC 6 has those already.
-
-    Cygwin B20.1, with gcc 2.95.2 ugrade, also builds MK as static lib and as
-    DLL.  Both "pure" Cygwin (i.e. requiring cygwin1.dll) and mingw32 (using
-    the -mno-cygwin flag) build, but there are some hairy include issues when
-    it comes to choosing the right locking model for Tcl and Python.  These
-    issues have not been resolved fully.
-
-* Macintosh
-
-    MWCW 5 builds PPC shared libs, PPC static libs, and 68K static libraries.
-
-    Building 68K CFM libraries leads to a "MetaKit 68K.shlb" which comes out
-    of the linker without errors, but the result does not seem to have any
-    export symbols defined (despite the fact that the library is over 200 K).
-    Because of that, I've been unable to build apps or Mk4tcl/Mk4py so far.
-
-    The other three configurations build, but for some reason MK's regression
-    test stops at L03 (everything up to that point looks ok, i.e. over 90%).
-
-    The Mk4tcl PPC extension appears to work (quick manual test), and so does
-    the Python extension, "Mk4py.PPC.slb".  I have not yet given these two
-    a serious workout, hoping to have a basic test harness in place soon.
-
-* VMS, BeOS, ...
-
-    No news yet, please report your findings with any other platform builds.
-
-
-WHAT'S MISSING HERE
-===================
-
-    - a section on basic concepts (or maybe it doesn't belong here?)
-    - a section on getting started (C++, Python, Tcl all differ - point to
-      the respective intro pages)
-    - maybe a small sample for each of C++ / Tcl / Python, to give an idea
-    - mention TclKit, scripted docs (WiKit/Tequila?), VFS?
-    - I forgot... please tell me :)
-
-
-LICENSE AND COPYRIGHT STATEMENT
-===============================
-
-Copyright (c) 1996-2000 Jean-Claude Wippler
-
-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, sublicense,
-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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
-THE AUTHORS OR COPYRIGHT HOLDERS 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.
-
-
-==============================================================================
--- Jean-Claude Wippler <jcw@equi4.com>

Thanks

@@ -90,7 +90,7 @@ David Megginson <david@megginson.com>
   SimGear property manager/registry
 
 
-Curt Olson <curt@flightgear.org>
+Curt Olson http://www.flightgear.org/~curt/
   Curt is responsible for overall project and source code management.
   He has his hands in many of the areas.
 
@@ -175,7 +175,7 @@ NOTE:
 ----
 
 THIS DOCUMENT WAS INITIALLY WRITTEN BY 
-Curt L. Olson  <curt@flightgear.org>
+Curt L. Olson  <http://www.flightgear.org/~curt>
 
 
 05 Jul 2000 Removed non-SimGear entries (CLO)

acinclude.m4

@@ -3,7 +3,7 @@ dnl originally from ncftp 2.3.0
 dnl added wi_EXTRA_PDIR and wi_ANSI_C
 dnl $Id$
 dnl
-AC_DEFUN(wi_EXTRA_IDIR, [
+AC_DEFUN([wi_EXTRA_IDIR], [
 incdir="$1"
 if test -r $incdir ; then
 	case "$CPPFLAGS" in
@@ -25,7 +25,7 @@ dnl
 dnl
 dnl
 dnl
-AC_DEFUN(wi_EXTRA_LDIR, [
+AC_DEFUN([wi_EXTRA_LDIR], [
 mylibdir="$1"
 if test -r $mylibdir ; then
 	case "$LDFLAGS" in
@@ -47,7 +47,7 @@ dnl
 dnl __FP__
 dnl
 dnl
-AC_DEFUN(wi_EXTRA_PDIR, [
+AC_DEFUN([wi_EXTRA_PDIR], [
 progdir="$1"
 if test -r $progdir ; then
 	case "$PATH" in
@@ -76,7 +76,7 @@ dnl
 dnl If you want to look for subdirectories in include/lib directories,
 dnl you pass the names in argument 3, otherwise pass a dash.
 dnl
-AC_DEFUN(wi_EXTRA_DIRS, [echo "checking for extra include and lib directories..." 1>&6
+AC_DEFUN([wi_EXTRA_DIRS], [echo "checking for extra include and lib directories..." 1>&6
 ifelse([$1], yes, [dnl
 b1=`cd .. ; pwd`
 b2=`cd ../.. ; pwd`
@@ -111,7 +111,7 @@ done
 dnl
 dnl
 dnl
-AC_DEFUN(wi_HPUX_CFLAGS,
+AC_DEFUN([wi_HPUX_CFLAGS],
 [AC_MSG_CHECKING(if HP-UX ansi C compiler flags are needed)
 AC_REQUIRE([AC_PROG_CC])
 os=`uname -s | tr '[A-Z]' '[a-z]'`
@@ -144,7 +144,7 @@ AC_MSG_RESULT($ac_cv_hpux_flags)
 dnl
 dnl
 dnl
-AC_DEFUN(wi_CFLAGS, [AC_REQUIRE([AC_PROG_CC])
+AC_DEFUN([wi_CFLAGS], [AC_REQUIRE([AC_PROG_CC])
 wi_HPUX_CFLAGS
 	if test "$CFLAGS" = "" ; then
 		CFLAGS="-O"
@@ -165,7 +165,7 @@ wi_HPUX_CFLAGS
 dnl
 dnl
 dnl
-AC_DEFUN(wi_PROTOTYPES, [
+AC_DEFUN([wi_PROTOTYPES], [
 AC_MSG_CHECKING(if the compiler supports function prototypes)
 AC_TRY_COMPILE(,[extern void exit(int status);],[wi_cv_prototypes=yes
 AC_DEFINE(PROTOTYPES)],wi_cv_prototypes=no)
@@ -174,7 +174,7 @@ AC_MSG_RESULT($wi_cv_prototypes)
 dnl
 dnl
 dnl
-AC_DEFUN(wi_ANSI_C, [
+AC_DEFUN([wi_ANSI_C], [
 AC_MSG_CHECKING(ANSI-style function definitions)
 AC_TRY_COMPILE(,[int blubb(int x) { return 0; }],[wi_cv_ansi_funcs=yes
 AC_DEFINE(ANSI_FUNCS)],wi_cv_ansi_funcs=no)
@@ -183,7 +183,7 @@ AC_MSG_RESULT($wi_cv_ansi_funcs)
 dnl
 dnl
 dnl
-AC_DEFUN(wi_HEADER_SYS_SELECT_H, [
+AC_DEFUN([wi_HEADER_SYS_SELECT_H], [
 # See if <sys/select.h> is includable after <sys/time.h>
 if test "$ac_cv_header_sys_time_h" = no ; then
 AC_CHECK_HEADERS(sys/time.h sys/select.h)
@@ -211,7 +211,7 @@ fi
 dnl
 dnl
 dnl
-AC_DEFUN(wi_LIB_RESOLV, [
+AC_DEFUN([wi_LIB_RESOLV], [
 # See if we could access two well-known sites without help of any special
 # libraries, like resolv.
 
@@ -244,7 +244,7 @@ dnl
 dnl
 dnl
 
-AC_DEFUN(wi_LIB_NSL, [
+AC_DEFUN([wi_LIB_NSL], [
 AC_MSG_CHECKING(if we can use -lnsl)
 ac_save_LIBS="$LIBS";
 LIBS="$LIBS -lnsl";
@@ -261,7 +261,7 @@ dnl
 dnl
 dnl
 
-AC_DEFUN(nc_PATH_PROG_ZCAT, [
+AC_DEFUN([nc_PATH_PROG_ZCAT], [
 AC_PATH_PROG(GZCAT,gzcat)
 AC_PATH_PROG(ZCAT,zcat)
 if test "x$GZCAT" = x ; then
@@ -287,7 +287,7 @@ fi
 dnl
 dnl
 dnl
-AC_DEFUN(wi_SYSV_EXTRA_DIRS, [
+AC_DEFUN([wi_SYSV_EXTRA_DIRS], [
 # Use System V because their curses extensions are required.  This must
 # be done early so we use the -I and -L in the library checks also.
 # This is mostly a Solaris/SunOS hack.  Note that doing this will also
@@ -305,7 +305,7 @@ fi
 dnl
 dnl
 dnl
-AC_DEFUN(wi_DEFINE_UNAME, [
+AC_DEFUN([wi_DEFINE_UNAME], [
 # Get first 127 chars of all uname information.  Some folks have
 # way too much stuff there, so grab only the first 127.
 unam=`uname -a 2>/dev/null | cut -c1-127`
@@ -316,7 +316,7 @@ fi
 dnl
 dnl
 dnl
-AC_DEFUN(wi_READLINE_WITH_NCURSES, [
+AC_DEFUN([wi_READLINE_WITH_NCURSES], [
 # Readline and Ncurses could both define "backspace".
 # Warn about this if we have both things in our definitions list.
 
@@ -352,7 +352,7 @@ dnl
 
 dnl AC_EXT_DAYLIGHT
 dnl Check for an external variable daylight. Stolen from w3c-libwww.
-AC_DEFUN(AC_EXT_DAYLIGHT,
+AC_DEFUN([AC_EXT_DAYLIGHT],
 [ AC_MSG_CHECKING(int daylight variable)
 AC_TRY_COMPILE([#include <time.h>], [return daylight;],
   have_daylight=yes,
@@ -362,7 +362,7 @@ AC_MSG_RESULT($have_daylight)
 
 dnl AC_EXT_TIMEZONE
 dnl Check for an external variable timezone. Stolen from tcl-8.0.
-AC_DEFUN(AC_EXT_TIMEZONE,
+AC_DEFUN([AC_EXT_TIMEZONE],
 [
 #
 # Its important to include time.h in this check, as some systems (like convex)
@@ -395,7 +395,7 @@ fi
 
 ## AC_BZ_SET_COMPILER: Addition by Theodore Papadopoulo
 ## Patch by Jim McKelvey: change sed -e 's/ /@/g' to sed -e 's/ /@/'
-AC_DEFUN(AC_SG_SET_COMPILER,
+AC_DEFUN([AC_SG_SET_COMPILER],
   [cxxwith=`echo $1 | sed -e 's/ /@/'`
    case "$cxxwith" in
      *:*@*)                 # Full initialization syntax

configure.ac

@@ -1,16 +1,14 @@
-dnl Process this file with aclocal ; automake -a ; autoconf to produce a 
-dnl working configure script.
-dnl
-dnl $Id$
+dnl Process this file with autoget.sh to produce a working configure
+dnl script.
 
 AC_INIT
 AC_CONFIG_SRCDIR([simgear/bucket/newbucket.cxx])
 
-# Require at least automake 2.52
+dnl Require at least automake 2.52
 AC_PREREQ(2.52)
 
 dnl Initialize the automake stuff
-AM_INIT_AUTOMAKE(SimGear, 0.3.0)
+AM_INIT_AUTOMAKE(SimGear, 0.3.9)
 
 dnl Specify KAI C++ compiler and flags.
 dnl Borrowed with slight modification from blitz distribution.
@@ -38,20 +36,45 @@ AC_PROG_RANLIB
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
+dnl set the $host variable based on local machine/os
+AC_CANONICAL_HOST
 
-# Used on the Irix platform
-AR="ar"
-ARFLAGS="cru"
-OS=`uname -s`
-if test "$OS" = "IRIX" -o "$OS" = "IRIX64"; then
-    if test "$CXX" = "CC"; then
-        AR="CC -ar"
+dnl Used on the Irix platform
+case "${host}" in
+*-*-irix*)
+    if test "x$CXX" = "xCC" -o "x$CXX" = "xccache CC"; then
+        AR="$CXX -ar"
         ARFLAGS="-o"
+        CXXFLAGS="$CXXFLAGS -I$(top_srcdir)/simgear/compatibility/MIPSpro740"
+        compatibility_DIR="compatibility"
+        MIPSpro_DIRS="MIPSpro740"
+        AC_MSG_CHECKING([for MIPSpro compiler version 7.4 or newer])
+        AC_TRY_RUN([
+           int main() {
+              if ( _COMPILER_VERSION < 740 ) {
+                 return -1;
+              }
+              return 0;
+           }
+
+        ], AC_MSG_RESULT(yes),
+        [  AC_MSG_RESULT(no)
+           CXXFLAGS="$CXXFLAGS -I$(top_srcdir)/simgear/compatibility/MIPSpro721"
+           MIPSpro_DIRS="$(MIPSpro_DIRS) MIPSpro721"
+           AC_MSG_WARN([Using our own subset of the STL headers])
+        ], AC_MSG_RESULT(yes))
+        AC_SUBST(MIPSpro_DIRS)
     fi
-fi
+    ;;
+*)
+    AR="ar"
+    ARFLAGS="cru"
+    compatibility_DIR=
+    ;;
+esac
 AC_SUBST(AR)
 AC_SUBST(ARFLAGS)
-
+AC_SUBST(compatibility_DIR)
 
 if echo $includedir | egrep "simgear$" > /dev/null; then
     echo "includedir is" $includedir "libdir is" $libdir
@@ -60,8 +83,7 @@ else
     echo "includedir changed to" $includedir "libdir is" $libdir
 fi
          
-# set logging default value
-# with_logging=yes
+dnl set logging; default value of with_logging=yes
 AC_ARG_WITH(logging, [  --with-logging          Include logging output (default)])
 if test "x$with_logging" = "xno" ; then
     AC_DEFINE([FG_NDEBUG], 1, [Define for no logging output])
@@ -89,39 +111,34 @@ else
 fi
 AM_CONDITIONAL(ENABLE_JPEG_SERVER, test "x$with_jpeg_factory" = "xyes")
 
+# specify the plib location
+AC_ARG_WITH(plib, [  --with-plib=PREFIX      Specify the prefix path to plib])
 
-dnl Check for MS Windows environment
-AC_CHECK_HEADER(windows.h)
-
-AC_EGREP_CPP(yes,
-[#ifdef __MINGW32__
- yes
- #endif
-],is_mingw=yes, is_mingw=no)
-
-echo "IS_MINGW = $is_mingw"
-AM_CONDITIONAL(IS_MINGW, test "x$is_mingw" = "xyes")
-
-AC_EGREP_CPP(yes,
-[#ifdef __CYGWIN__
- yes
- #endif
-],is_cygwin=yes, is_cygwin=no)
-
-echo "IS_CYGWIN = $is_cygwin"
-AM_CONDITIONAL(IS_CYGWIN, test "x$is_cygwin" = "xyes")
-
-if test "x$HOSTTYPE" != "xmacintosh" -a "x$is_mingw" != "xyes"; then
-    dnl extra library and include directories
-    EXTRA_DIRS="/usr/X11R6"
-
-    if test -d /opt/X11R6 ; then
-        EXTRA_DIRS="$EXTRA_DIRS /opt/X11R6"
-    fi
+if test "x$with_plib" != "x" ; then
+    echo "plib prefix is $with_plib"
+    EXTRA_DIRS="${EXTRA_DIRS} $with_plib"
 fi
 
+dnl Determine an extra directories to add to include/lib search paths
+case "${host}" in
+*-apple-darwin* | *-*-cygwin* | *-*-mingw32*)
+    echo no EXTRA_DIRS for $host
+    ;;
+
+*)
+    if test -d /usr/X11R6 ; then
+        EXTRA_DIR1="/usr/X11R6"
+    fi
+    if test -d /opt/X11R6 ; then
+        EXTRA_DIR2="/opt/X11R6"
+    fi
+    EXTRA_DIRS="${EXTRA_DIRS} $EXTRA_DIR1 $EXTRA_DIR2"
+    ;;
+
+esac
 wi_EXTRA_DIRS(no, ${EXTRA_DIRS})
 
+
 dnl Using AM_CONDITIONAL is a step out of the protected little 
 dnl automake fold so it is potentially dangerous.  But, we are
 dnl beginning to run into cases where the standard checks are not
@@ -129,67 +146,98 @@ dnl enough.  AM_CONDITIONALS are then referenced to conditionally
 dnl build a Makefile.in from a Makefile.am which lets us define custom
 dnl includes, compile alternative source files, etc.
 
-dnl X11 might be installed on Mac OS X, don't want to use it if it is.
-if test "x$HOSTTYPE" != "xmacintosh" ; then
-    dnl Check for X11 (fancy)
+dnl X11 might be installed on Mac OS X or cygwin/mingwin, we don't want
+dnl to use it if it is.
+case "${host}" in
+*-apple-darwin* | *-*-cygwin* | *-*-mingw32*)
+    echo no fancy X11 check
+    ;;
+
+*)
     AC_PATH_XTRA
-fi
+    ;;
+
+esac
 
 dnl Checks for libraries.
 
-null_LIBS="$LIBS"
+dnl Thread related checks
+AC_CHECK_HEADER(pthread.h)
+AC_SEARCH_LIBS(pthread_exit, [pthread c_r])
+if test "x$ac_cv_header_pthread_h" = "xyes"; then
+    CXXFLAGS="$CXXFLAGS -D_REENTRANT"
+    CFLAGS="$CFLAGS -D_REENTRANT"
 
-AC_CHECK_LIB(m, cos)
+  if test "x$ac_cv_search_pthread_exit" = "x-lc_r"; then
+    CXXFLAGS="-pthread $CXXFLAGS"
+    CFLAGS="-pthread $CFLAGS"
+  fi
+fi
+
+AM_CONDITIONAL(HAVE_THREADS, test "x$ac_cv_header_pthread_h" = "xyes")
+
+thread_LIBS="$LIBS"
+LIBS=""
+
+dnl search for network related libraries
+AC_SEARCH_LIBS(inet_addr, xnet)
+AC_SEARCH_LIBS(socket, socket)
+
+network_LIBS="$LIBS"
+LIBS=""
+
+dnl check for some default libraries
+AC_SEARCH_LIBS(cos, m)
 
 base_LIBS="$LIBS"
 
-dnl Thread related checks
-AC_CHECK_LIB(pthread, pthread_exit)
-AC_CHECK_HEADER(pthread.h)
-if test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h" = "xyes"; then
-    CXXFLAGS="$CXXFLAGS -D_REENTRANT"
-    CFLAGS="$CFLAGS -D_REENTRANT"
-fi
-AM_CONDITIONAL(HAVE_THREADS, test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h" = "xyes")
-
-AC_CHECK_LIB(socket, socket)
-
-dnl X11 might be installed, but we don't want to use it for OSX -dw-
-if test "x$HOSTTYPE" != "xmacintosh" ; then
-    AC_CHECK_LIB(X11, XCreateWindow)
-    AC_CHECK_LIB(Xext, XShmCreateImage)
-    AC_CHECK_LIB(Xi, XGetExtensionVersion)
-    AC_CHECK_LIB(ICE, IceOpenConnection)
-    AC_CHECK_LIB(SM, SmcOpenConnection)
-    AC_CHECK_LIB(Xt, XtMalloc)
-    AC_CHECK_LIB(Xmu, XmuLookupStandardColormap)
-fi
-
 dnl check for OpenGL related libraries
+case "${host}" in
+*-*-cygwin* | *-*-mingw32*)
+    dnl CygWin under Windoze.
 
-AM_CONDITIONAL(EXTGL_NEEDED, test "x$ac_cv_header_windows_h" = "xyes")
+    echo Win32 specific hacks...
+    AC_DEFINE([WIN32], 1, [Define for Win32 platforms])
+    AC_DEFINE([NOMINMAX], 1, [Define for Win32 platforms])
 
-if test "x$HOSTTYPE" = "xmacintosh" ; then
-    dnl Macintosh OSX
-    LIBS="$LIBS -framework OpenGL -framework GLUT"
-elif test "x$ac_cv_header_windows_h" != "xyes" ; then
-    dnl Reasonable stuff for X-Windows based machines
+    LIBS="$LIBS -lglu32 -lopengl32"
+    LIBS="$LIBS -luser32 -lgdi32 -lwinmm"
 
-    AC_CHECK_LIB(GLcore, glNewList)
-    if test "x$ac_cv_lib_GLcore_glNewList" = "xno" ; then
-	dnl if no GLcore, check for GL
-	AC_CHECK_LIB(GL, glNewList)
-	if test "x$ac_cv_lib_GL_glNewList" = "xno" ; then
-	    dnl if no GL, check for MesaGL
-	    AC_CHECK_LIB(MesaGL, glNewList)
-	fi
-    else
+    dnl add -lwsock32 for mingwin
+    case "${host}" in
+    *-*-mingw32*)
+        base_LIBS="$base_LIBS -lws2_32"
+        ;;
+    esac
+
+    echo "Will link apps with $LIBS"
+    ;;
+
+*-apple-darwin*)
+    dnl Mac OS X
+
+    LIBS="$LIBS -framework OpenGL -framework Carbon -lobjc"
+    ;;
+
+*)
+    dnl X-Windows based machines
+
+    AC_SEARCH_LIBS(XCreateWindow, X11)
+    AC_SEARCH_LIBS(XShmCreateImage, Xext)
+    AC_SEARCH_LIBS(XGetExtensionVersion, Xi)
+    AC_SEARCH_LIBS(IceOpenConnection, ICE)
+    AC_SEARCH_LIBS(SmcOpenConnection, SM)
+    AC_SEARCH_LIBS(XtMalloc, Xt)
+    AC_SEARCH_LIBS(XmuLookupStandardColormap, Xmu)
+    
+    AC_SEARCH_LIBS(glNewList, [ GL GLcore MesaGL ])
+    if test "x$ac_cv_search_glNewList" = "x-lGLcore"; then
 	dnl if GLcore found, then also check for GL
-	AC_CHECK_LIB(GL, glXCreateContext)
+        AC_SEARCH_LIBS(glXCreateContext, GL)
     fi
 
     dnl if using mesa, check for xmesa.h
-    if test "x$ac_cv_lib_MesaGL_glNewList" = "xyes" ; then
+    if test "x$ac_cv_search_glNewList" = "x-lMesaGL"; then
 	AC_CHECK_HEADER(GL/fxmesa.h)
 	if test "x$ac_cv_header_GL_fxmesa_h" = "xyes"; then
 	    AC_DEFINE([XMESA], 1, [Define for fxmesa])
@@ -197,76 +245,73 @@ elif test "x$ac_cv_header_windows_h" != "xyes" ; then
         fi
     fi
 
-    AC_CHECK_LIB(GLU, gluLookAt)
-    if test "x$ac_cv_lib_GLU_gluLookAt" = "xno" ; then
-	dnl if no GLU, check for MesaGLU
-	AC_CHECK_LIB(MesaGLU, gluLookAt)
-    fi
+    AC_SEARCH_LIBS(gluLookAt, [ GLU MesaGLU ])
+    ;;
 
-    dnl check for glut
-    AC_CHECK_LIB(glut, glutGetModifiers)
-
-    dnl test for glutGameModeString, but avoid adding glut a second time into
-    dnl the list of libraries
-    save_LIBS="$LIBS"
-    AC_CHECK_LIB(glut, glutGameModeString)
-    LIBS="$save_LIBS"
-else
-    dnl Win32 libs
-
-    echo Win32 specific hacks...
-    AC_DEFINE([WIN32], 1, [Define for Win32 platforms])
-    AC_DEFINE([NOMINMAX], 1, [Define for Win32 platforms])
-
-    dnl just define these to true and hope for the best
-    ac_cv_lib_glut_glutGetModifiers="yes"
-    ac_cv_lib_glut_glutGameModeString="yes"
-
-    if test "x$with_sgi_opengl" = "xyes" ; then
-        echo "Building with glut.dll, glu.dll, and opengl.dll"
-	WIN32_GLUT=glut
-	WIN32_GLU=glu
-	WIN32_OPENGL=opengl
-    else 
-	echo "Building with glut32.dll, glu32.dll, and opengl32.dll"
-	WIN32_GLUT=glut32
-	WIN32_GLU=glu32
-	WIN32_OPENGL=opengl32
-    fi
-
-    LIBS="$LIBS -l${WIN32_GLUT} -l${WIN32_GLU} -l${WIN32_OPENGL}"
-    LIBS="$LIBS -luser32 -lgdi32"
-    if test "x$is_mingw" = "xyes" ; then
-        EXTRA_DIRS="${EXTRA_DIRS}"
-    fi
-    echo "Will link apps with $LIBS"
-fi
-
-if test "x$ac_cv_lib_glut_glutGetModifiers" = "xno"; then
-    echo 
-    echo "Unable to find the necessary OpenGL or GLUT libraries."
-    echo "See config.log for automated test details and results ..."
-    exit 1
-fi
-
-if test "x$ac_cv_lib_glut_glutGameModeString" = "xno"; then
-    echo
-    echo "Your version of glut doesn't support game mode."
-    echo "You need to install the latest version of glut.  If your"
-    echo "distribution doesn't provide a newer version, you can get the source"
-    echo "code from:"
-    echo
-    echo "    http://reality.sgi.com/opengl/glut3/glut3.html"
-    exit 1
-fi
+esac
 
 opengl_LIBS="$LIBS"
 LIBS="$base_LIBS"
 
-AC_SUBST(base_LIBS)
-AC_SUBST(opengl_LIBS)
+dnl check for OpenAL libraries
+OPENAL_OK="no"
+case "${host}" in
+*-*-cygwin* | *-*-mingw32*)
+    dnl CygWin under Windoze.
+    INCLUDES="$INCLUDES -I/usr/local/include"
+    LIBS="$LIBS -L/usr/local/lib"
+    AC_SEARCH_LIBS(alGenBuffers, openal32)
+    AC_SEARCH_LIBS(alutInit, [ openal32 ALut ] )
+    LIBS="$LIBS -lwinmm -ldsound -ldxguid -lole32"
+    openal_LIBS="$LIBS"
+    OPENAL_OK="$ac_cv_search_alGenBuffers"
+    ;;
 
-AM_CONDITIONAL(HAVE_XWINDOWS, test "x$ac_cv_lib_X11_XCreateWindow" = "xyes" )
+*-apple-darwin*)
+    dnl Mac OS X
+
+    LIBS="$LIBS -framework IOKit -framework OpenAL"
+    openal_LIBS="$LIBS"
+    # not sure how to test if OpenAL exists on MacOS (does it come by default?)
+    OPENAL_OK="yes"
+    ;;
+
+*)
+    dnl default unix style machines
+
+    save_LIBS=$LIBS
+    LIBS="$LIBS $thread_LIBS"
+    AC_SEARCH_LIBS(alGenBuffers, openal)
+    AC_SEARCH_LIBS(alutInit, [ alut openal ] )
+    OPENAL_OK="$ac_cv_search_alGenBuffers"
+    openal_LIBS="$LIBS"
+    LIBS=$save_LIBS
+    ;;
+
+esac
+
+if test "$OPENAL_OK" == "no"; then
+    echo
+    echo "You *must* have the openal library installed on your system to build"
+    echo "SimGear!"
+    echo
+    echo "Please see README.OpenAL for more details."
+    echo
+    echo "configure aborted."
+    exit
+fi
+
+LIBS="$base_LIBS"
+
+AC_SUBST(base_LIBS)
+AC_SUBST(openal_LIBS)
+AC_SUBST(opengl_LIBS)
+AC_SUBST(thread_LIBS)
+AC_SUBST(network_LIBS)
+
+dnl Check for MS Windows environment
+AC_CHECK_HEADER(windows.h)
+AM_CONDITIONAL(EXTGL_NEEDED, test "x$ac_cv_header_windows_h" = "xyes")
 
 # The following are C++ items that need to be tested for with the c++
 # compiler
@@ -286,11 +331,11 @@ if test "x$ac_cv_header_plib_ul_h" != "xyes"; then
     exit
 fi
 
-AC_MSG_CHECKING([for plib 1.6.0 or newer])
+AC_MSG_CHECKING([for plib 1.8.4 or newer])
 AC_TRY_RUN([
 #include <plib/ul.h>
 
-#define MIN_PLIB_VERSION 160
+#define MIN_PLIB_VERSION 184
 
 int main() {
     int major, minor, micro;
@@ -305,37 +350,35 @@ int main() {
 ],
   AC_MSG_RESULT(yes),
   [AC_MSG_RESULT(wrong version);
-   AC_MSG_ERROR([Install plib 1.6.0 or later first...])],
+   AC_MSG_ERROR([Install plib 1.8.4 or later first...])],
   AC_MSG_RESULT(yes)
 )
 
-dnl Check for system installed metakit
-AC_CHECK_HEADER(mk4.h)
-if test "x$ac_cv_header_mk4_h" != "xyes"; then
-    echo 
-    echo "Metakit not found, you will need to install this first."
-    echo "Please read the README.metakit for more information."
-    exit
-fi
+LIBS="$saved_LIBS"
 
 AC_LANG_POP
 
-dnl Specify if we want logging (testing build) or not (release build)
-
 dnl Check for system installed zlib
 AC_CHECK_HEADER(zlib.h)
 if test "x$ac_cv_header_zlib_h" != "xyes"; then
-    echo 
-    echo "zlib not found, you will need to install this first."
-    echo "Please read the README.zlib for more information."
-    exit
+    echo
+    echo "zlib library not found."
+    echo
+    echo "If your OS does not provide an installable package for zlib"
+    echo "you will have to compile and install it first yourself.  A copy"
+    echo "of zlib-1.1.4.tar.gz is included with SimGear.  You will"
+    echo "have to untar this source code, and follow its included instructions"
+    echo "to compile and install on your system."
+    echo
+    echo "configure aborted."
+    echo
 fi
 
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS( \
 	fcntl.h getopt.h malloc.h memory.h stdint.h stdlib.h sys/param.h \
-	sys/stat.h sys/time.h sys/timeb.h unistd.h windows.h winbase.h values.h )
+	sys/stat.h sys/time.h sys/timeb.h unistd.h values.h )
 
 if test "x$ac_cv_header_stdint_h" = "xyes"; then
     AC_DEFINE([HAVE_STDINT_H], 1, [Define if stdint.h exists])
@@ -348,10 +391,14 @@ AC_HEADER_TIME
 AC_STRUCT_TM
 
 dnl Checks for library functions.
+old_LIBS=$LIBS
+LIBS="$base_LIBS $network_LIBS $opengl_LIBS"
 AC_TYPE_SIGNAL
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS( ftime gettimeofday timegm memcpy bcopy mktime strstr rand \
-	random drand48 setitimer getitimer signal GetLocalTime rint getrusage )
+AC_CHECK_FUNCS( [ \
+        ftime gettimeofday timegm memcpy bcopy mktime strstr rand \
+	random drand48 setitimer getitimer signal GetLocalTime rint getrusage ] )
+LIBS=$old_LIBS
 
 AM_CONFIG_HEADER(simgear/simgear_config.h)
 
@@ -361,22 +408,31 @@ AC_CONFIG_FILES([ \
 	src-libs/Makefile \
 	simgear/Makefile \
 	simgear/version.h \
+	simgear/compatibility/Makefile \
+	simgear/compatibility/MIPSpro721/Makefile \
+	simgear/compatibility/MIPSpro740/Makefile \
 	simgear/bucket/Makefile \
 	simgear/debug/Makefile \
 	simgear/ephemeris/Makefile \
 	simgear/io/Makefile \
 	simgear/magvar/Makefile \
 	simgear/math/Makefile \
-	simgear/metar/Makefile \
+	simgear/environment/Makefile \
 	simgear/misc/Makefile \
+	simgear/nasal/Makefile \
+	simgear/props/Makefile \
 	simgear/route/Makefile \
+	simgear/scene/Makefile \
+	simgear/scene/material/Makefile \
+	simgear/scene/model/Makefile \
+	simgear/scene/sky/Makefile \
+	simgear/scene/tgdb/Makefile \
 	simgear/screen/Makefile \
 	simgear/serial/Makefile \
-	simgear/sky/Makefile \
-	simgear/sky/clouds3d/Makefile \
+	simgear/sound/Makefile \
+	simgear/structure/Makefile \
 	simgear/threads/Makefile \
 	simgear/timing/Makefile \
-	simgear/xgl/Makefile \
 	simgear/xml/Makefile \
 ])
 AC_OUTPUT
@@ -394,7 +450,7 @@ else
     echo "Debug messages: yes"
 fi
 
-echo -n "Automake version: ($AUTO_MAKE_VERSION) "
+echo -n "Automake version: "
 automake --version | head -1
 
 if test "x$with_jpeg_factory" = "xyes"; then
@@ -403,8 +459,9 @@ else
    echo "Without JPEG Factory support"
 fi
 
-if test "x$ac_cv_lib_pthread_pthread_exit" = "xyes" -a "x$ac_cv_header_pthread_h" = "xyes"; then
+if test "x$ac_cv_header_pthread_h" = "xyes"; then
    echo "Threads: pthread lib found."
 else
    echo "Threads: no threads (pthread lib not found.)"
 fi
+

simgear/Makefile.am

@@ -5,29 +5,33 @@ SGTHREAD_DIR =
 endif
 
 # METAR_DIRS =
-METAR_DIRS = metar
+METAR_DIRS = environment
 
 EXTRA_DIST = simgear_config.h.vc5 version.h.in
 
 include_HEADERS = \
-	compiler.h constants.h sg_inlines.h sg_traits.hxx sg_zlib.h version.h
+	compiler.h constants.h sg_inlines.h sg_traits.hxx version.h
 
 SUBDIRS = \
+	$(compatibility_DIR) \
 	xml \
 	debug \
 	misc \
+	structure \
 	bucket \
 	ephemeris \
 	io \
 	magvar \
 	math \
 	$(METAR_DIRS) \
+	nasal \
+	props \
 	route \
+	scene \
 	screen \
 	serial \
-	sky \
+	sound \
 	$(SGTHREAD_DIR) \
-	timing \
-	xgl
+	timing
 
-DIST_SUBDIRS = $(SUBDIRS)
+DIST_SUBDIRS = $(SUBDIRS) compatibility threads

simgear/bucket/newbucket.cxx

@@ -3,7 +3,7 @@
  *
  * Written by Curtis L. Olson, started February 1999.
  *
- * Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+ * Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt/
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -208,7 +208,7 @@ double SGBucket::get_width_m() const {
     double clat_rad = clat * SGD_DEGREES_TO_RADIANS;
     double cos_lat = cos( clat_rad );
     double local_radius = cos_lat * SG_EQUATORIAL_RADIUS_M;
-    double local_perimeter = 2.0 * local_radius * SGD_PI;
+    double local_perimeter = local_radius * SGD_2PI;
     double degree_width = local_perimeter / 360.0;
 
     return sg_bucket_span( get_center_lat() ) * degree_width;
@@ -217,7 +217,7 @@ double SGBucket::get_width_m() const {
 
 // return height of the tile in meters
 double SGBucket::get_height_m() const {
-    double perimeter = 2.0 * SG_EQUATORIAL_RADIUS_M * SGD_PI;
+    double perimeter = SG_EQUATORIAL_RADIUS_M * SGD_2PI;
     double degree_height = perimeter / 360.0;
 
     return SG_BUCKET_SPAN * degree_height;
@@ -271,16 +271,32 @@ void sgBucketDiff( const SGBucket& b1, const SGBucket& b2, int *dx, int *dy ) {
 #endif
 
     // longitude difference
-    double c1_lon = b1.get_center_lon();
-    double c2_lon = b2.get_center_lon();
-    double diff_lon = c2_lon - c1_lon;
-    double span;
-    if ( sg_bucket_span(c1_lat) <= sg_bucket_span(c2_lat) ) {
+    double diff_lon=0.0;
+    double span=0.0;
+
+    SGBucket tmp_bucket;
+    // To handle crossing the bucket size boundary
+    //  we need to account for different size buckets.
+
+    if ( sg_bucket_span(c1_lat) <= sg_bucket_span(c2_lat) )
+    {
 	span = sg_bucket_span(c1_lat);
     } else {
 	span = sg_bucket_span(c2_lat);
     }
 
+    diff_lon = b2.get_center_lon() - b1.get_center_lon();
+
+    if (diff_lon <0.0)
+    {
+       diff_lon -= b1.get_width()*0.5 + b2.get_width()*0.5 - span;
+    } 
+    else
+    {
+       diff_lon += b1.get_width()*0.5 + b2.get_width()*0.5 - span;
+    }
+
+
 #ifdef HAVE_RINT
     *dx = (int)rint( diff_lon / span );
 #else

simgear/bucket/newbucket.hxx

@@ -3,7 +3,7 @@
  *
  * Written by Curtis L. Olson, started February 1999.
  *
- * Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+ * Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -54,10 +54,7 @@ SG_USING_STD(fabs);
 #include STL_STRING
 
 SG_USING_STD(string);
-
-#if ! defined( SG_HAVE_NATIVE_SGI_COMPILERS )
 SG_USING_STD(ostream);
-#endif
 
 
 /**
@@ -260,14 +257,16 @@ public:
     // Informational methods.
 
     /**
-     * @return the lon of the lower left corner of this tile.
+     * @return the lon of the lower left corner of 
+     * the 1x1 chunk containing this tile.
      */
-    inline int get_lon() const { return lon; }
+    inline int get_chunk_lon() const { return lon; }
 
     /**
-     * @return the lat of the lower left corner of this tile.
+     * @return the lat of the lower left corner of 
+     * the 1x1 chunk containing this tile.
      */
-    inline int get_lat() const { return lat; }
+    inline int get_chunk_lat() const { return lat; }
 
     /**
      * @return the x coord within the 1x1 degree chunk this tile.

simgear/compatibility/.cvsignore

@@ -0,0 +1,2 @@
+Makefile
+Makefile.in

simgear/compatibility/MIPSpro721/.cvsignore

@@ -0,0 +1,2 @@
+Makefile
+Makefile.in

simgear/compatibility/MIPSpro721/Makefile.am

@@ -0,0 +1,14 @@
+includedir = @includedir@/compatibility/
+
+include_HEADERS	= \
+	iostream \
+	strstream \
+	sstream \
+	istream \
+	fstream \
+	iterator \
+	iomanip \
+	new \
+	streambuf \
+	\
+	irix_string

simgear/compatibility/MIPSpro721/fstream

@@ -0,0 +1,19 @@
+
+#ifndef __SG_FSTREAM
+#define __SG_FSTREAM 1
+
+# if defined(sgi) && !defined(__GNUC__)
+
+# include <fstream.h>
+
+  namespace std {
+    using ::fstream;
+    using ::ofstream;
+    using ::ifstream;
+  };
+
+
+# endif
+
+#endif // !__SG_FSTREAM
+

simgear/compatibility/MIPSpro721/iomanip

@@ -0,0 +1,16 @@
+
+#ifndef __SG_IOMANIP
+#define __SG_IOMANIP 1
+
+# include <iomanip.h>
+
+namespace std {
+
+   using ::setw;
+   using ::setprecision;
+
+   inline int  setfill(int f) { ::setfill(f); }
+};
+
+#endif // !__SG_IOMANIP
+

simgear/compatibility/MIPSpro721/iostream

@@ -0,0 +1,52 @@
+
+#ifndef __SG_IOSTREAM
+#define __SG_IOSTREAM 1
+
+# if defined(sgi) && !defined(__GNUC__)
+
+# include <fstream>
+# include <iostream.h>
+
+  class ios_base : public ios {
+  public:
+
+    typedef int  openmode;
+    typedef int  seekdir;
+
+    enum { binary = 0 };
+  };
+
+  namespace std {
+    using ::cin;
+    using ::cout;
+    using ::cerr;
+    using ::clog;
+    using ::endl;
+
+    using ::ios;
+    using ::ios_base;
+    using ::iostream;
+    using ::istream;
+    using ::ostream;
+
+    using ::dec;
+    using ::oct;
+    using ::hex;
+
+    enum  { skipws=ios::skipws,
+            left=ios::left, right=ios::right, internal=ios::internal,
+            showbase=ios::showbase, showpoint=ios::showpoint,
+            uppercase=ios::uppercase, showpos=ios::showpos,
+            scientific=ios::scientific, fixed=ios::fixed,
+            unitbuf=ios::unitbuf, stdio=ios::stdio
+#if _BOOL && __EDG_ABI_COMPATIBILITY_VERSION>227 /* bool support */
+            ,boolalpha=ios::boolalpha
+#endif /* bool support */
+          };
+
+  };
+
+# endif
+
+#endif // !__SG_IOSTREAM
+

simgear/compatibility/MIPSpro721/irix_string

@@ -0,0 +1,47 @@
+
+#ifndef __SGI_HXX
+#define __SGI_HXX 1
+
+#ifdef __cplusplus
+
+#include <string>
+
+inline bool
+operator!=( const std::string& lhs, const char* rhs)
+{
+    return lhs.compare( rhs ) != 0;
+}
+
+inline bool
+operator!=( const char* lhs, const std::string& rhs)
+{
+    return rhs.compare( lhs ) != 0;
+}
+
+inline bool
+operator==( const std::string& lhs, const char* rhs)
+{
+    return lhs.compare( rhs ) == 0;
+}
+
+inline bool
+operator==( const char* lhs, const std::string& rhs)
+{
+    return rhs.compare( lhs ) == 0;
+}
+
+inline std::string
+operator+(const std::string& lhs, const char* rhs)
+{
+    return lhs + std::string(rhs);
+}
+
+inline std::string
+operator+(const char* lhs, const std::string& rhs)
+{
+    return std::string(lhs) + rhs;
+}
+
+#endif /* __cplusplus */
+
+#endif /* !__SGI_HXX */

simgear/compatibility/MIPSpro721/istream

@@ -0,0 +1,17 @@
+
+#ifndef __SG_ISTREAM
+#define __SG_ISTREAM 1
+
+# include <iostream>
+
+# if defined(sgi) && !defined(__GNUC__)
+
+# include <stream.h>
+# include <string>
+
+  using std::getline;
+
+# endif
+
+#endif // !__SG_ISTREAM
+

simgear/compatibility/MIPSpro721/iterator

@@ -0,0 +1,8 @@
+
+#ifndef __SG_ITERATOR
+#define __SG_ITERATOR 1
+
+# include <iterator.h>
+
+#endif // !__SG_ITERATOR
+

simgear/compatibility/MIPSpro721/new

@@ -0,0 +1,12 @@
+
+#ifndef __SG_NEW
+#define __SG_NEW 1
+
+#if defined(sgi) && !defined(__GNUC__)
+
+# include <new.h>
+
+#endif
+
+#endif // !__SG_NEW
+

simgear/compatibility/MIPSpro721/sstream

@@ -0,0 +1,22 @@
+
+#ifndef __SG_SSTREAM
+#define __SG_SSTREAM 1
+
+# include <iostream>
+# include <strstream>
+# include <string>
+
+namespace std {
+
+   class ostringstream : public ostrstream {
+   public:
+      std::string str() {  return string(ostrstream::str()); }
+   };
+
+
+   typedef istrstream istringstream;
+
+};
+
+#endif // !__SG_SSTREAM
+

simgear/compatibility/MIPSpro721/streambuf

@@ -0,0 +1,38 @@
+
+#ifndef __SG_STREAMBUF
+#define __SG_STREAMBUF 1
+
+# include <iostream>
+# include <char_traits.h>
+
+//
+// Until we find a good way to rename the original streambuf class
+// and derive our own streambuf class from that, define this variable
+// for now so the code can inherit our streambuf class instead.
+//
+# define SG_NEED_STREAMBUF_HACK  1
+
+class __streambuf : virtual public streambuf {
+public:
+
+  typedef std::char_traits<char>            traits_type;
+  typedef std::char_traits<char>::int_type  int_type;
+
+  typedef streampos  pos_type;
+  typedef streamoff  off_type;
+};
+
+
+# if defined(sgi) && !defined(__GNUC__)
+
+# define pubsync  sync
+
+  namespace std {
+    using ::streambuf;
+    using ::streampos;
+    using ::streamoff;
+  };
+# endif
+
+#endif // !__SG_STREAMBUF
+

simgear/compatibility/MIPSpro721/strstream

@@ -0,0 +1,20 @@
+
+#ifndef __SG_STRSTREAM
+#define __SG_STRSTREAM 1
+
+# include <strstream.h>
+
+# if defined(sgi) && !defined(__GNUC__)
+
+  namespace std {
+    using ::ends;
+
+    using ::strstream;
+    using ::istrstream;
+    using ::ostrstream;
+  };
+
+# endif
+
+#endif // !__SG_STRSTREAM
+

simgear/compatibility/MIPSpro740/.cvsignore

@@ -0,0 +1,2 @@
+Makefile
+Makefile.in

simgear/compatibility/MIPSpro740/Makefile.am

@@ -0,0 +1,22 @@
+includedir = @includedir@/compatibility
+
+EXTRA_DIST = README
+
+include_HEADERS	= \
+	cfloat \
+	csetjmp \
+	cstdio \
+	cwchar \
+	cassert \
+	climits \
+	csignal \
+	cstdlib \
+	cwctype \
+	cctype \
+	clocale \
+	cstdarg \
+	cstring \
+	cerrno \
+	cmath \
+	cstddef \
+	ctime

simgear/compatibility/MIPSpro740/README

@@ -0,0 +1,9 @@
+
+The following header files where taken from the boost clib package
+(http://www.boost.org):
+
+cassert climits  csignal   cstdlib   cwctype
+cctype  clocale  cstdarg   cstring
+cerrno  cmath    cstddef   ctime
+cfloat  csetjmp  cstdio    cwchar
+

simgear/compatibility/MIPSpro740/cassert

@@ -0,0 +1,10 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CASSERT_HEADER
+#define __CASSERT_HEADER
+
+#include <assert.h>
+
+#endif // CASSERT_HEADER

simgear/compatibility/MIPSpro740/cctype

@@ -0,0 +1,26 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CCTYPE_HEADER
+#define __CCTYPE_HEADER
+
+#include <ctype.h>
+
+namespace std {
+  using ::isalnum;
+  using ::isdigit;
+  using ::isprint;
+  using ::isupper;
+  using ::tolower;
+  using ::isalpha;
+  using ::isgraph;
+  using ::ispunct;
+  using ::isxdigit;
+  using ::toupper;
+  using ::iscntrl;
+  using ::islower;
+  using ::isspace;
+}
+
+#endif // CCTYPE_HEADER

simgear/compatibility/MIPSpro740/cerrno

@@ -0,0 +1,10 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CERRNO_HEADER
+#define __CERRNO_HEADER
+
+#include <errno.h>
+
+#endif // CERRNO_HEADER

simgear/compatibility/MIPSpro740/cfloat

@@ -0,0 +1,10 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CFLOAT_HEADER
+#define __CFLOAT_HEADER
+
+#include <float.h>
+
+#endif // CFLOAT_HEADER

simgear/compatibility/MIPSpro740/climits

@@ -0,0 +1,10 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CLIMITS_HEADER
+#define __CLIMITS_HEADER
+
+#include <limits.h>
+
+#endif // CLIMITS_HEADER

simgear/compatibility/MIPSpro740/clocale

@@ -0,0 +1,16 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CLOCALE_HEADER
+#define __CLOCALE_HEADER
+
+#include <locale.h>
+
+namespace std {
+  using ::lconv;
+  using ::localeconv;
+  using ::setlocale;
+}
+
+#endif // CLOCALE_HEADER

simgear/compatibility/MIPSpro740/cmath

@@ -0,0 +1,35 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CMATH_HEADER
+#define __CMATH_HEADER
+
+#include <math.h>
+
+namespace std {
+  using ::acos;
+  using ::cos;
+  using ::fmod;
+  using ::modf;
+  using ::tan;
+  using ::asin;
+  using ::cosh;
+  using ::frexp;
+  using ::pow;
+  using ::tanh;
+  using ::atan;
+  using ::exp;
+  using ::ldexp;
+  using ::sin;
+  using ::atan2;
+  using ::fabs;
+  using ::log;
+  using ::sinh;
+  using ::ceil;
+  using ::floor;
+  using ::log10;
+  using ::sqrt;
+}
+
+#endif // CMATH_HEADER

simgear/compatibility/MIPSpro740/csetjmp

@@ -0,0 +1,15 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSETJMP_HEADER
+#define __CSETJMP_HEADER
+
+#include <setjmp.h>
+
+namespace std {
+  using ::jmp_buf;
+  using ::longjmp;
+}
+
+#endif // CSETJMP_HEADER

simgear/compatibility/MIPSpro740/csignal

@@ -0,0 +1,16 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSIGNAL_HEADER
+#define __CSIGNAL_HEADER
+
+#include <signal.h>
+
+namespace std {
+  using ::sig_atomic_t;
+  using ::raise;
+  using ::signal;
+}
+
+#endif // CSIGNAL_HEADER

simgear/compatibility/MIPSpro740/cstdarg

@@ -0,0 +1,14 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSTDARG_HEADER
+#define __CSTDARG_HEADER
+
+#include <stdarg.h>
+
+namespace std {
+  using ::va_list;
+}
+
+#endif // CSTDARG_HEADER

simgear/compatibility/MIPSpro740/cstddef

@@ -0,0 +1,15 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSTDDEF_HEADER
+#define __CSTDDEF_HEADER
+
+#include <stddef.h>
+
+namespace std {
+  using ::ptrdiff_t;
+  using ::size_t;
+}
+
+#endif // CSTDDEF_HEADER

simgear/compatibility/MIPSpro740/cstdio

@@ -0,0 +1,57 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSTDIO_HEADER
+#define __CSTDIO_HEADER
+
+#include <stdio.h>
+
+namespace std {
+  using ::FILE;
+  using ::fpos_t;
+  using ::size_t;
+  using ::clearerr;
+  using ::fgets;
+  using ::fscanf;
+  using ::gets;
+  using ::rename;
+  using ::tmpfile;
+  using ::fclose;
+  using ::fopen;
+  using ::fseek;
+  using ::perror;
+  using ::rewind;
+  using ::tmpnam;
+  using ::feof;
+  using ::fprintf;
+  using ::fsetpos;
+  using ::printf;
+  using ::scanf;
+  using ::ungetc;
+  using ::ferror;
+  using ::fputc;
+  using ::ftell;
+  using ::putc;
+  using ::setbuf;
+  using ::vfprintf;
+  using ::fflush;
+  using ::fputs;
+  using ::fwrite;
+  using ::putchar;
+  using ::setvbuf;
+  using ::vprintf;
+  using ::fgetc;
+  using ::fread;
+  using ::getc;
+  using ::puts;
+  using ::sprintf;
+  using ::vsprintf;
+  using ::fgetpos;
+  using ::freopen;
+  using ::getchar;
+  using ::remove;
+  using ::sscanf;
+}
+
+#endif // CSTDIO_HEADER

simgear/compatibility/MIPSpro740/cstdlib

@@ -0,0 +1,43 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSTDLIB_HEADER
+#define __CSTDLIB_HEADER
+
+#include <stdlib.h>
+
+namespace std {
+  using ::abort;
+  using ::atexit;
+  using ::exit;
+  using ::getenv;
+  using ::system;
+  using ::calloc;
+  using ::malloc;
+  using ::free;
+  using ::realloc;
+  using ::atol;
+  using ::mblen;
+  using ::strtod;
+  using ::wctomb;
+  using ::atof;
+  using ::mbstowcs;
+  using ::strtol;
+  using ::wcstombs;
+  using ::atoi;
+  using ::mbtowc;
+  using ::strtoul;
+  using ::bsearch;
+  using ::qsort;
+  using ::div_t;
+  using ::ldiv_t;
+  using ::abs;
+  using ::labs;
+  using ::srand;
+  using ::div;
+  using ::ldiv;
+  using ::rand;
+}
+
+#endif // CSTDLIB_HEADER

simgear/compatibility/MIPSpro740/cstring

@@ -0,0 +1,36 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CSTRING_HEADER
+#define __CSTRING_HEADER
+
+#include <string.h>
+
+namespace std {
+  using ::size_t;
+  using ::memchr;
+  using ::strcat;
+  using ::strcspn;
+  using ::strncpy;
+  using ::strtok;
+  using ::memcmp;
+  using ::strchr;
+  using ::strerror;
+  using ::strpbrk;
+  using ::strxfrm;
+  using ::memcpy;
+  using ::strcmp;
+  using ::strlen;
+  using ::strrchr;
+  using ::memmove;
+  using ::strcoll;
+  using ::strncat;
+  using ::strspn;
+  using ::memset;
+  using ::strcpy;
+  using ::strncmp;
+  using ::strstr;
+}
+
+#endif // CSTRING_HEADER

simgear/compatibility/MIPSpro740/ctime

@@ -0,0 +1,26 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CTIME_HEADER
+#define __CTIME_HEADER
+
+#include <time.h>
+
+namespace std {
+  using ::size_t;
+  using ::clock_t;
+  using ::time_t;
+  using ::tm;
+  using ::asctime;
+  using ::clock;
+  using ::difftime;
+  using ::localtime;
+  using ::strftime;
+  using ::ctime;
+  using ::gmtime;
+  using ::mktime;
+  using ::time;
+}
+
+#endif // CTIME_HEADER

simgear/compatibility/MIPSpro740/cwchar

@@ -0,0 +1,156 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CWCHAR_HEADER
+#define __CWCHAR_HEADER
+
+#include <wchar.h>
+
+namespace std {
+  using ::mbstate_t;
+  using ::wint_t;
+  using ::size_t;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::btowc;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::getwchar;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::ungetwc;
+#endif
+  using ::wcscpy;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wcsrtombs;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wmemchr;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::fgetwc;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::mbrlen;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::vfwprintf;
+#endif
+#endif
+  using ::wcscspn;
+  using ::wcsspn;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wmemcmp;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::fgetws;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::mbrtowc;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::vswprintf;
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::wcsftime;
+#endif
+  using ::wcsstr;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wmemcpy;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::fputwc;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::mbsinit;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::vwprintf;
+#endif
+#endif
+  using ::wcslen;
+  using ::wcstod;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wmemmove;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::fputws;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::mbsrtowcs;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wcrtomb;
+#endif
+  using ::wcsncat;
+  using ::wcstok;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wmemset;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__DECCXX_VER) && __DECCXX_VER <= 60290024)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::fwide;
+#endif
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::putwc;
+#endif
+  using ::wcscat;
+  using ::wcsncmp;
+  using ::wcstol;
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wprintf;
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::fwprintf;
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::putwchar;
+#endif
+  using ::wcschr;
+  using ::wcsncpy;
+  using ::wcstoul;
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wscanf;
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::fwscanf;
+#endif
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::swprintf;
+#endif
+#endif
+  using ::wcscmp;
+  using ::wcspbrk;
+  using ::wcsxfrm;
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+  using ::getwc;
+#endif
+#if !(defined(__linux) && defined(__DECCXX_VER) && __DECCXX_VER <= 60390005)
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::swscanf;
+#endif
+#endif
+  using ::wcscoll;
+  using ::wcsrchr;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wctob;
+#endif
+}
+
+#endif // CWCHAR_HEADER

simgear/compatibility/MIPSpro740/cwctype

@@ -0,0 +1,39 @@
+// This file is automatically generated. Do not edit.
+// ['../../../libs/compatibility/generate_cpp_c_headers.py']
+// Mon Apr 16 15:16:00 2001 ('PST', 'PDT')
+
+#ifndef __CWCTYPE_HEADER
+#define __CWCTYPE_HEADER
+
+#include <wctype.h>
+
+namespace std {
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wctrans_t;
+#endif
+  using ::wctype_t;
+  using ::wint_t;
+  using ::iswalnum;
+  using ::iswctype;
+  using ::iswlower;
+  using ::iswspace;
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::towctrans;
+#endif
+#if !(defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730)
+  using ::wctrans;
+#endif
+  using ::iswalpha;
+  using ::iswdigit;
+  using ::iswprint;
+  using ::iswupper;
+  using ::towlower;
+  using ::wctype;
+  using ::iswcntrl;
+  using ::iswgraph;
+  using ::iswpunct;
+  using ::iswxdigit;
+  using ::towupper;
+}
+
+#endif // CWCTYPE_HEADER

simgear/compatibility/Makefile.am

@@ -0,0 +1,3 @@
+SUBDIRS = $(MIPSpro_DIRS)
+
+DIST_SUBDIRS = MIPSpro721 MIPSpro740

simgear/compiler.h

@@ -121,7 +121,7 @@
 #      define STL_STRSTREAM  <strstream>
 
 #    endif
-#  elif __GNUC__ == 3
+#  elif __GNUC__ >= 3
        // g++-3.0.x
 #      define SG_EXPLICIT_FUNCTION_TMPL_ARGS
 #      define SG_NEED_AUTO_PTR
@@ -149,12 +149,6 @@
 
 #endif // __GNUC__
 
-#if defined( __MINGW32__ )
-#  define bcopy(from, to, n) memcpy(to, from, n)
-#  define FG_MEM_COPY(to,from,n) memcpy(to, from, n)
-#  define snprintf _snprintf
-#endif
-
 /* KAI C++ */
 #if defined(__KCC)
 
@@ -219,7 +213,7 @@
 #  define bcopy(from, to, n) memcpy(to, from, n)
 #  define FG_MEM_COPY(to,from,n) memcpy(to, from, n)
 
-#  if _MSC_VER == 1200  // msvc++ 6.0
+#  if _MSC_VER >= 1200  // msvc++ 6.0 or greater
 #    define SG_NAMESPACES
 #    define SG_HAVE_STD
 #    define SG_HAVE_STD_INCLUDES
@@ -235,6 +229,7 @@
 #    define STL_STRING     <string>
 #    define STL_STRSTREAM  <strstream>
 
+#    define isnan _isnan
 #    define snprintf _snprintf
 
 #    pragma warning(disable: 4786) // identifier was truncated to '255' characters
@@ -291,42 +286,45 @@
 #  define SG_HAVE_NATIVE_SGI_COMPILERS
 
 #  define SG_EXPLICIT_FUNCTION_TMPL_ARGS
+#  define SG_CLASS_PARTIAL_SPECIALIZATION
 #  define SG_NEED_AUTO_PTR
 #  define SG_MEMBER_TEMPLATES
 #  define SG_NAMESPACES
 #  define SG_HAVE_STD
-#  define SG_CLASS_PARTIAL_SPECIALIZATION
+#  define SG_HAVE_STREAMBUF
 #  define SG_HAVE_TRAITS
+#  define SG_HAVE_STD_INCLUDES
 
 #  define STL_ALGORITHM  <algorithm>
 #  define STL_FUNCTIONAL <functional>
-#  define STL_IOMANIP    <iomanip.h>
-#  define STL_IOSTREAM   <iostream.h>
-#  define STL_ITERATOR   <iterator.h>
-#  define STL_FSTREAM    <fstream.h>
+#  define STL_IOMANIP    <iomanip>
+#  define STL_IOSTREAM   <iostream>
+#  define STL_ITERATOR   <iterator>
+#  define STL_FSTREAM    <fstream>
 #  define STL_STDEXCEPT  <stdexcept>
+#if (_COMPILER_VERSION < 740)
+#  define STL_STRING     <irix_string>
+#else
 #  define STL_STRING     <string>
-#  define STL_STRSTREAM  <strstream.h>
-
-// #  define __STL_FUNCTION_TMPL_PARTIAL_ORDER
-// typedef void PFNGLPOINTPARAMETERFEXTPROC
-
-#define glPointParameterfEXT	glPointParameterfSGIS
-#define glPointParameterfvEXT	glPointParameterfvSGIS
+#endif
+#  define STL_STRSTREAM  <strstream>
 
 #pragma set woff 1001,1012,1014,1116,1155,1172,1174
 #pragma set woff 1401,1460,1551,1552,1681
 
 #ifdef __cplusplus
 #pragma set woff 1682,3303
+#if (_COMPILER_VERSION >= 740)
+#  pragma set woff 3624
+#endif
 #endif
 
-#  define SG_COMPILER_STR "SGI Irix compiler version " SG_STRINGIZE(_COMPILER_VERSION)
+#  define SG_COMPILER_STR "SGI MipsPro compiler version " SG_STRINGIZE(_COMPILER_VERSION)
 
 #endif // Native SGI compilers
 
 
-#if defined ( sun )
+#if defined (__sun)
 #  include <strings.h>
 #  include <memory.h>
 #  if defined ( __cplusplus )
@@ -338,7 +336,9 @@
      extern void *memmove(void *, const void *, size_t);
 #  endif // __cplusplus
 
-#  define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
+#  if  !defined( __GNUC__ )
+#   define SG_COMPILER_STR "Sun compiler version " SG_STRINGIZE(__SUNPRO_CC)
+#  endif
 
 #endif // sun
 
@@ -366,6 +366,27 @@
 
 #endif // __ICC
 
+//
+// Platform dependent gl.h and glut.h definitions
+//
+
+#ifdef __APPLE__
+#  define SG_GL_H <OpenGL/gl.h>
+#  define SG_GLX_H <AGL/agl.h>
+#  define SG_GLU_H <OpenGL/glu.h>
+#  define SG_GLEXT_H <OpenGL/glext.h>
+#  define SG_GLUT_H <GLUT/glut.h>
+
+inline int (isnan)(double r) { return !(r <= 0 || r >= 0); }
+#else
+#  define SG_GL_H <GL/gl.h>
+#  define SG_GLX_H <GL/glx.h>
+#  define SG_GLU_H <GL/glu.h>
+#  define SG_GLEXT_H <GL/glext.h>
+#  define SG_GLUT_H <GL/glut.h>
+#endif
+
+
 //
 // No user modifiable definitions beyond here.
 //
@@ -447,3 +468,4 @@ inline const_mem_fun_ref_t<_Ret,_Tp> mem_fun_ref(_Ret (_Tp::*__f)() const)
 #endif // SG_INCOMPLETE_FUNCTIONAL
 
 #endif // _SG_COMPILER_H
+

simgear/constants.h

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started February 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt/
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -32,6 +32,9 @@
 
 #include <simgear/compiler.h>
 
+#ifdef _MSC_VER
+#  define  _USE_MATH_DEFINES
+#endif
 #ifdef SG_HAVE_STD_INCLUDES
 #  include <cmath>
 #else
@@ -106,21 +109,51 @@
 #define SG_METER_TO_FEET    3.28083989501312335958  
 
 /** Meters to Nautical Miles.  1 nm = 6076.11549 feet */
-#define SG_METER_TO_NM      0.00053995680
+#define SG_METER_TO_NM      0.0005399568034557235
 
 /** Nautical Miles to Meters */
 #define SG_NM_TO_METER      1852.0000
 
+/** Meters to Statute Miles. */
+#define SG_METER_TO_SM      0.0006213699494949496
+
+/** Statute Miles to Meters. */
+#define SG_SM_TO_METER      1609.3412196
+
 /** Radians to Nautical Miles.  1 nm = 1/60 of a degree */
 #define SG_NM_TO_RAD        0.00029088820866572159
 
 /** Nautical Miles to Radians */
 #define SG_RAD_TO_NM        3437.7467707849392526
 
+/** Miles per second to Knots */
+#define SG_MPS_TO_KT        1.9438444924406046432
+
+/** Knots to Miles per second */
+#define SG_KT_TO_MPS        0.5144444444444444444
+
+/** Miles per second to Miles per hour */
+#define SG_MPS_TO_MPH       2.2369362920544020312
+
+/** Miles per hour to Miles per second */
+#define SG_MPH_TO_MPS       0.44704
+
+/** Meters per second to Kilometers per hour */
+#define SG_MPS_TO_KMH       3.6
+
+/** Kilometers per hour to Miles per second */
+#define SG_KMH_TO_MPS       0.2777777777777777778
+
+/** Pascal to Inch Mercury */
+#define SG_PA_TO_INHG       0.0002952998330101010
+
+/** Inch Mercury to Pascal */
+#define SG_INHG_TO_PA       3386.388640341
+
+
 /** For divide by zero avoidance, this will be close enough to zero */
 #define SG_EPSILON 0.0000001
 
-
 /** Highest binobj format version we know how to read/write.  This starts at
  *  0 and can go up to 65535 */
 #define SG_BINOBJ_VERSION 6

simgear/debug/debug_types.h

@@ -23,7 +23,11 @@ typedef enum {
     SG_IO        = 0x00001000,
     SG_CLIPPER   = 0x00002000,
     SG_NETWORK   = 0x00004000,
-    SG_UNDEFD    = 0x00008000, // For range checking
+    SG_ATC       = 0x00008000,
+    SG_NASAL     = 0x00010000,
+    SG_INSTR     = 0x00020000,
+    SG_SYSTEMS   = 0x00040000,
+    SG_UNDEFD    = 0x00080000, // For range checking
 
     SG_ALL     = 0xFFFFFFFF
 } sgDebugClass;
@@ -33,11 +37,12 @@ typedef enum {
  * Define the possible logging priorities (and their order).
  */
 typedef enum {
-    SG_BULK,	    // For frequent messages
-    SG_DEBUG, 	    // Less frequent debug type messages
-    SG_INFO,        // Informatory messages
-    SG_WARN,	    // Possible impending problem
-    SG_ALERT       // Very possible impending problem
+    SG_BULK = 1,       // For frequent messages
+    SG_DEBUG,          // Less frequent debug type messages
+    SG_INFO,           // Informatory messages
+    SG_WARN,           // Possible impending problem
+    SG_ALERT           // Very possible impending problem
     // SG_EXIT,        // Problem (no core)
     // SG_ABORT        // Abandon ship (core)
 } sgDebugPriority;
+

simgear/debug/logstream.hxx

@@ -28,9 +28,8 @@
 
 #include <simgear/compiler.h>
 
-// At least Irix needs this
-#ifdef SG_HAVE_NATIVE_SGI_COMPILERS
-#include <char_traits.h>
+#ifdef _MSC_VER
+#  include <windows.h>
 #endif
 
 #ifdef SG_HAVE_STD_INCLUDES
@@ -43,14 +42,11 @@
 
 #include <simgear/debug/debug_types.h>
 
-#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
 SG_USING_STD(streambuf);
 SG_USING_STD(ostream);
+SG_USING_STD(cout);
 SG_USING_STD(cerr);
 SG_USING_STD(endl);
-#else
-SG_USING_STD(char_traits);
-#endif
 
 #ifdef __MWERKS__
 SG_USING_STD(iostream);
@@ -69,7 +65,11 @@ SG_USING_STD(iostream);
  * messages at runtime. Only messages with priority >= logbuf::logPriority
  * and debugClass == logbuf::logClass are output.
  */
+#ifdef SG_NEED_STREAMBUF_HACK
+class logbuf : public __streambuf
+#else
 class logbuf : public streambuf
+#endif
 {
 public:
 
@@ -184,7 +184,23 @@ logbuf::set_log_state( sgDebugClass c, sgDebugPriority p )
 inline logbuf::int_type
 logbuf::overflow( int c )
 {
+#ifdef _MSC_VER
+    static bool has_console = false;
+    if ( logging_enabled ) {
+        if ( !has_console ) {
+            AllocConsole();
+            freopen("conin$", "r", stdin);
+            freopen("conout$", "w", stdout);
+            freopen("conout$", "w", stderr);
+            has_console = true;
+        }
+        sbuf->sputc(c);
+    }
+    else
+        return EOF == 0 ? 1: 0;
+#else
     return logging_enabled ? sbuf->sputc(c) : (EOF == 0 ? 1: 0);
+#endif
 }
 
 /**

simgear/environment/.cvsignore

@@ -0,0 +1,4 @@
+.deps
+Makefile
+Makefile.in
+metar

simgear/environment/Makefile.am

@@ -0,0 +1,9 @@
+includedir = @includedir@/environment
+
+lib_LIBRARIES = libsgenvironment.a
+
+include_HEADERS = metar.hxx visual_enviro.hxx
+
+libsgenvironment_a_SOURCES = metar.cxx visual_enviro.cxx
+
+INCLUDES = -I$(top_srcdir)

simgear/environment/metar.hxx

@@ -0,0 +1,282 @@
+// metar interface class
+//
+// Written by Melchior FRANZ, started December 2003.
+//
+// Copyright (C) 2003  Melchior FRANZ - mfranz@aon.at
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program 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 for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+//
+// $Id$
+
+#ifndef _METAR_HXX
+#define _METAR_HXX
+
+#include <vector>
+#include <map>
+#include <string>
+
+#include <simgear/constants.h>
+
+SG_USING_STD(vector);
+SG_USING_STD(map);
+SG_USING_STD(string);
+
+const double SGMetarNaN = -1E20;
+#define NaN SGMetarNaN
+
+struct Token {
+	char	*id;
+	char	*text;
+};
+
+
+class SGMetar;
+
+class SGMetarVisibility {
+	friend class SGMetar;
+public:
+	SGMetarVisibility() :
+		_distance(NaN),
+		_direction(-1),
+		_modifier(EQUALS),
+		_tendency(NONE) {}
+
+	enum Modifier {
+		NOGO,
+		EQUALS,
+		LESS_THAN,
+		GREATER_THAN
+	};
+
+	enum Tendency {
+		NONE,
+		STABLE,
+		INCREASING,
+		DECREASING
+	};
+
+	void set(double dist, int dir = -1, int mod = -1, int tend = -1);
+
+	inline double	getVisibility_m()	const { return _distance; }
+	inline double	getVisibility_ft()	const { return _distance == NaN ? NaN : _distance * SG_METER_TO_FEET; }
+	inline double	getVisibility_sm()	const { return _distance == NaN ? NaN : _distance * SG_METER_TO_SM; }
+	inline int	getDirection()		const { return _direction; }
+	inline int	getModifier()		const { return _modifier; }
+	inline int	getTendency()		const { return _tendency; }
+
+protected:
+	double	_distance;
+	int	_direction;
+	int	_modifier;
+	int	_tendency;
+};
+
+
+// runway condition (surface and visibility)
+class SGMetarRunway {
+	friend class SGMetar;
+public:
+	SGMetarRunway() :
+		_deposit(-1),
+		_deposit_string(0),
+		_extent(-1),
+		_extent_string(0),
+		_depth(NaN),
+		_friction(NaN),
+		_friction_string(0),
+		_comment(0),
+		_wind_shear(false) {}
+
+	inline int			getDeposit()		const { return _deposit; }
+	inline const char		*getDepositString()	const { return _deposit_string; }
+	inline double			getExtent()		const { return _extent; }
+	inline const char		*getExtentString()	const { return _extent_string; }
+	inline double			getDepth()		const { return _depth; }
+	inline double			getFriction()		const { return _friction; }
+	inline const char		*getFrictionString()	const { return _friction_string; }
+	inline const char		*getComment()		const { return _comment; }
+	inline const bool		getWindShear()		const { return _wind_shear; }
+	inline const SGMetarVisibility&	getMinVisibility()	const { return _min_visibility; }
+	inline const SGMetarVisibility&	getMaxVisibility()	const { return _max_visibility; }
+
+protected:
+	SGMetarVisibility _min_visibility;
+	SGMetarVisibility _max_visibility;
+	int		_deposit;
+	const char	*_deposit_string;
+	int		_extent;
+	const char	*_extent_string;
+	double		_depth;
+	double		_friction;
+	const char	*_friction_string;
+	const char	*_comment;
+	bool		_wind_shear;
+};
+
+
+// cloud layer
+class SGMetarCloud {
+	friend class SGMetar;
+public:
+	SGMetarCloud() :
+		_coverage(-1),
+		_altitude(NaN),
+		_type(0),
+		_type_long(0) {}
+
+	void set(double alt, int cov = -1);
+
+	inline int	getCoverage()		const { return _coverage; }
+	inline double	getAltitude_m()		const { return _altitude; }
+	inline double	getAltitude_ft()	const { return _altitude == NaN ? NaN : _altitude * SG_METER_TO_FEET; }
+	inline char	*getTypeString()	const { return _type; }
+	inline char	*getTypeLongString()	const { return _type_long; }
+
+protected:
+	int	_coverage;		// quarters: 0 -> clear ... 4 -> overcast
+	double	_altitude;		// 1000 m
+	char	*_type;			// CU
+	char	*_type_long;		// cumulus
+};
+
+
+class SGMetar {
+public:
+	SGMetar(const string& m, const string& proxy = "", const string& port = "",
+			const string &auth = "", const time_t time = 0);
+	~SGMetar();
+
+	enum ReportType {
+		NONE,
+		AUTO,
+		COR,
+		RTD
+	};
+
+	inline const char *getData()		const { return _data; }
+	inline const char *getUnusedData()	const { return _m; }
+	inline const bool getProxy()		const { return _x_proxy; }
+	inline const char *getId()		const { return _icao; }
+	inline int	getYear()		const { return _year; }
+	inline int	getMonth()		const { return _month; }
+	inline int	getDay()		const { return _day; }
+	inline int	getHour()		const { return _hour; }
+	inline int	getMinute()		const { return _minute; }
+	inline int	getReportType()		const { return _report_type; }
+
+	inline int	getWindDir()		const { return _wind_dir; }
+	inline double	getWindSpeed_mps()	const { return _wind_speed; }
+	inline double	getWindSpeed_kmh()	const { return _wind_speed == NaN ? NaN : _wind_speed * SG_MPS_TO_KMH; }
+	inline double	getWindSpeed_kt()	const { return _wind_speed == NaN ? NaN : _wind_speed * SG_MPS_TO_KT; }
+	inline double	getWindSpeed_mph()	const { return _wind_speed == NaN ? NaN : _wind_speed * SG_MPS_TO_MPH; }
+
+	inline double	getGustSpeed_mps()	const { return _gust_speed; }
+	inline double	getGustSpeed_kmh()	const { return _gust_speed == NaN ? NaN : _gust_speed * SG_MPS_TO_KMH; }
+	inline double	getGustSpeed_kt()	const { return _gust_speed == NaN ? NaN : _gust_speed * SG_MPS_TO_KT; }
+	inline double	getGustSpeed_mph()	const { return _gust_speed == NaN ? NaN : _gust_speed * SG_MPS_TO_MPH; }
+
+	inline int	getWindRangeFrom()	const { return _wind_range_from; }
+	inline int	getWindRangeTo()	const { return _wind_range_to; }
+
+	inline const SGMetarVisibility& getMinVisibility()	const { return _min_visibility; }
+	inline const SGMetarVisibility& getMaxVisibility()	const { return _max_visibility; }
+	inline const SGMetarVisibility& getVertVisibility()	const { return _vert_visibility; }
+	inline const SGMetarVisibility *getDirVisibility()	const { return _dir_visibility; }
+
+	inline double	getTemperature_C()	const { return _temp; }
+	inline double	getTemperature_F()	const { return _temp == NaN ? NaN : 1.8 * _temp + 32; }
+	inline double	getDewpoint_C()		const { return _dewp; }
+	inline double	getDewpoint_F()		const { return _dewp == NaN ? NaN : 1.8 * _dewp + 32; }
+	inline double	getPressure_hPa()	const { return _pressure == NaN ? NaN : _pressure / 100; }
+	inline double	getPressure_inHg()	const { return _pressure == NaN ? NaN : _pressure * SG_PA_TO_INHG; }
+
+	inline int	getRain()		const { return _rain; }
+	inline int	getHail()		const { return _hail; }
+	inline int	getSnow()		const { return _snow; }
+	inline bool	getCAVOK()		const { return _cavok; }
+
+	double		getRelHumidity()	const;
+
+	inline const vector<SGMetarCloud>& getClouds()	const	{ return _clouds; }
+	inline const map<string, SGMetarRunway>& getRunways()	const	{ return _runways; }
+	inline const vector<string>& getWeather()		const	{ return _weather; }
+
+protected:
+	string	_url;
+	int	_grpcount;
+	bool	_x_proxy;
+	char	*_data;
+	char	*_m;
+	char	_icao[5];
+	int	_year;
+	int	_month;
+	int	_day;
+	int	_hour;
+	int	_minute;
+	int	_report_type;
+	int	_wind_dir;
+	double	_wind_speed;
+	double	_gust_speed;
+	int	_wind_range_from;
+	int	_wind_range_to;
+	double	_temp;
+	double	_dewp;
+	double	_pressure;
+	int	_rain;
+	int	_hail;
+	int	_snow;
+	bool	_cavok;
+
+	SGMetarVisibility		_min_visibility;
+	SGMetarVisibility		_max_visibility;
+	SGMetarVisibility		_vert_visibility;
+	SGMetarVisibility		_dir_visibility[8];
+	vector<SGMetarCloud>		_clouds;
+	map<string, SGMetarRunway>	_runways;
+	vector<string>			_weather;
+
+	bool	scanPreambleDate();
+	bool	scanPreambleTime();
+	void	useCurrentDate();
+
+	bool	scanType();
+	bool	scanId();
+	bool	scanDate();
+	bool	scanModifier();
+	bool	scanWind();
+	bool	scanVariability();
+	bool	scanVisibility();
+	bool	scanRwyVisRange();
+	bool	scanSkyCondition();
+	bool	scanWeather();
+	bool	scanTemperature();
+	bool	scanPressure();
+	bool	scanRunwayReport();
+	bool	scanWindShear();
+	bool	scanTrendForecast();
+	bool	scanColorState();
+	bool	scanRemark();
+	bool	scanRemainder();
+
+	int	scanNumber(char **str, int *num, int min, int max = 0);
+	bool	scanBoundary(char **str);
+	const struct Token *scanToken(char **str, const struct Token *list);
+	char	*loadData(const char *id, const string& proxy, const string& port,
+			const string &auth, time_t time);
+	void	normalizeData();
+};
+
+#undef NaN
+#endif // _METAR_HXX

simgear/environment/visual_enviro.cxx

@@ -0,0 +1,698 @@
+// Visual environment helper class
+//
+// Written by Harald JOHNSEN, started April 2005.
+//
+// Copyright (C) 2005  Harald JOHNSEN - hjohnsen@evc.net
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program 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 for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+//
+//
+
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
+#include <plib/sg.h>
+#include <simgear/constants.h>
+#include <simgear/math/sg_random.h>
+#include <simgear/math/sg_geodesy.hxx>
+#include <simgear/math/point3d.hxx>
+#include <simgear/math/polar3d.hxx>
+#include <simgear/sound/soundmgr_openal.hxx>
+#include <simgear/scene/sky/cloudfield.hxx>
+#include <simgear/scene/sky/newcloud.hxx>
+#include "visual_enviro.hxx"
+
+#include <vector>
+
+SG_USING_STD(vector);
+
+
+typedef struct {
+	Point3D		pt;
+	int			depth;
+	int			prev;
+} lt_tree_seg;
+
+#define MAX_RAIN_SLICE	200
+static float rainpos[MAX_RAIN_SLICE];
+#define MAX_LT_TREE_SEG	400
+
+/**
+ * A class to render lightnings.
+ */
+class SGLightning {
+public:
+    /**
+     * Build a new lightning.
+     * The lightning has a limited life time. It will also play a thunder sounder once.
+     * @param lon lon longitude in degree
+     * @param lat lat latitude in degree
+     * @param alt asl of top of lightning
+     */
+	SGLightning(double lon, double lat, double alt);
+	~SGLightning();
+	void lt_Render(void);
+	void lt_build(void);
+	void lt_build_tree_branch(int tree_nr, Point3D &start, float energy, int nbseg, float segsize);
+
+	// contains all the segments of the lightning
+	lt_tree_seg lt_tree[MAX_LT_TREE_SEG];
+	// segment count
+	int		nb_tree;
+	// position of lightning
+	double	lon, lat, alt;
+	int		sequence_count;
+	// time to live
+	double	age;
+};
+
+typedef vector<SGLightning *> list_of_lightning;
+static list_of_lightning lightnings;
+
+SGEnviro sgEnviro;
+
+SGEnviro::SGEnviro(void) :
+	view_in_cloud(false),
+	turbulence_enable_state(false),
+	precipitation_enable_state(true),
+	lightning_enable_state(false),
+	soundMgr(NULL),
+	snd_active(false),
+	snd_dist(0.0),
+	last_cloud_turbulence(0.0),
+	cloud_turbulence(0.0),
+	elapsed_time(0.0),
+	dt(0.0),
+	min_time_before_lt(0.0),
+	fov_width(55.0),
+	fov_height(55.0),
+	precipitation_max_alt(0.0),
+	precipitation_density(100.0)
+
+{
+	for(int i = 0; i < MAX_RAIN_SLICE ; i++)
+		rainpos[i] = sg_random();
+	radarEcho.reserve(100);
+}
+
+SGEnviro::~SGEnviro(void) {
+	list_of_lightning::iterator iLightning;
+	for( iLightning = lightnings.begin() ; iLightning != lightnings.end() ; iLightning++ ) {
+		delete (*iLightning);
+	}
+	lightnings.clear();
+}
+
+void SGEnviro::startOfFrame( sgVec3 p, sgVec3 up, double lon, double lat, double alt, double delta_time) {
+	view_in_cloud = false;
+	// ask the impostor cache to do some cleanup
+	if(SGNewCloud::cldCache)
+		SGNewCloud::cldCache->startNewFrame();
+	last_cloud_turbulence = cloud_turbulence;
+	cloud_turbulence = 0.0;
+	elapsed_time += delta_time;
+	min_time_before_lt -= delta_time;
+	dt = delta_time;
+
+	sgMat4 T1, LON, LAT;
+    sgVec3 axis;
+
+    sgMakeTransMat4( T1, p );
+
+    sgSetVec3( axis, 0.0, 0.0, 1.0 );
+    sgMakeRotMat4( LON, lon, axis );
+
+    sgSetVec3( axis, 0.0, 1.0, 0.0 );
+    sgMakeRotMat4( LAT, 90.0 - lat, axis );
+
+    sgMat4 TRANSFORM;
+
+    sgCopyMat4( TRANSFORM, T1 );
+    sgPreMultMat4( TRANSFORM, LON );
+    sgPreMultMat4( TRANSFORM, LAT );
+
+    sgCoord pos;
+    sgSetCoord( &pos, TRANSFORM );
+
+	sgMakeCoordMat4( transform, &pos );
+    last_lon = lon;
+    last_lat = lat;
+	last_alt = alt;
+
+	radarEcho.clear();
+	precipitation_max_alt = 400.0;
+}
+
+void SGEnviro::endOfFrame(void) {
+}
+
+double SGEnviro::get_cloud_turbulence(void) const {
+	return last_cloud_turbulence;
+}
+
+// this can be queried to add some turbulence for example
+bool SGEnviro::is_view_in_cloud(void) const {
+	return view_in_cloud;
+}
+void SGEnviro::set_view_in_cloud(bool incloud) {
+	view_in_cloud = incloud;
+}
+
+int SGEnviro::get_CacheResolution(void) const {
+	return SGCloudField::get_CacheResolution();
+}
+
+int SGEnviro::get_clouds_CacheSize(void) const {
+	return SGCloudField::get_CacheSize();
+}
+float SGEnviro::get_clouds_visibility(void) const {
+	return SGCloudField::get_CloudVis();
+}
+float SGEnviro::get_clouds_density(void) const {
+	return SGCloudField::get_density();
+}
+bool SGEnviro::get_clouds_enable_state(void) const {
+	return SGCloudField::get_enable3dClouds();
+}
+
+bool SGEnviro::get_turbulence_enable_state(void) const {
+	return turbulence_enable_state;
+}
+
+void SGEnviro::set_CacheResolution(int resolutionPixels) {
+	SGCloudField::set_CacheResolution(resolutionPixels);
+}
+
+void SGEnviro::set_clouds_CacheSize(int sizeKb) {
+	SGCloudField::set_CacheSize(sizeKb);
+}
+void SGEnviro::set_clouds_visibility(float distance) {
+	SGCloudField::set_CloudVis(distance);
+}
+void SGEnviro::set_clouds_density(float density) {
+	SGCloudField::set_density(density);
+}
+void SGEnviro::set_clouds_enable_state(bool enable) {
+	SGCloudField::set_enable3dClouds(enable);
+}
+void SGEnviro::set_turbulence_enable_state(bool enable) {
+	turbulence_enable_state = enable;
+}
+// rain/snow
+float SGEnviro::get_precipitation_density(void) const {
+	return precipitation_density;
+}
+bool SGEnviro::get_precipitation_enable_state(void) const {
+	return precipitation_enable_state;
+}
+
+void SGEnviro::set_precipitation_density(float density) {
+	precipitation_density = density;
+}
+void SGEnviro::set_precipitation_enable_state(bool enable) {
+	precipitation_enable_state = enable;
+}
+
+// others
+bool SGEnviro::get_lightning_enable_state(void) const {
+	return lightning_enable_state;
+}
+
+void SGEnviro::set_lightning_enable_state(bool enable) {
+	lightning_enable_state = enable;
+	if( ! enable ) {
+		// TODO:cleanup
+	}
+}
+
+void SGEnviro::setLight(sgVec4 adj_fog_color) {
+	sgCopyVec4( fog_color, adj_fog_color );
+	if( false ) {
+	//    ssgGetLight( 0 ) -> setColour( GL_DIFFUSE, l->scene_diffuse() );
+	}
+}
+
+void SGEnviro::callback_cloud(float heading, float alt, float radius, int familly, float dist, int cloudId) {
+	// send data to wx radar
+	// compute turbulence
+	// draw precipitation
+	// draw lightning
+	// compute illumination
+
+	// http://www.pilotfriend.com/flight_training/weather/THUNDERSTORM%20HAZARDS1.htm
+	double turbulence = 0.0;
+	if( dist < radius * radius * 2.25f ) {
+		switch(familly) {
+			case SGNewCloud::CLFamilly_st:
+				turbulence = 0.2;
+				break;
+			case SGNewCloud::CLFamilly_ci:
+			case SGNewCloud::CLFamilly_cs:
+			case SGNewCloud::CLFamilly_cc:
+			case SGNewCloud::CLFamilly_ac:
+			case SGNewCloud::CLFamilly_as:
+				turbulence = 0.1;
+				break;
+			case SGNewCloud::CLFamilly_sc:
+				turbulence = 0.3;
+				break;
+			case SGNewCloud::CLFamilly_ns:
+				turbulence = 0.4;
+				break;
+			case SGNewCloud::CLFamilly_cu:
+				turbulence = 0.5;
+				break;
+			case SGNewCloud::CLFamilly_cb:
+				turbulence = 0.6;
+				break;
+		}
+		// full turbulence inside cloud, half in the vicinity
+		if( dist > radius * radius )
+			turbulence *= 0.5;
+		if( turbulence > cloud_turbulence )
+			cloud_turbulence = turbulence;
+		// we can do 'local' precipitations too
+	}
+
+	// convert to LWC for radar (experimental)
+	// http://www-das.uwyo.edu/~geerts/cwx/notes/chap08/moist_cloud.html
+	double LWC = 0.0;
+	switch(familly) {
+		case SGNewCloud::CLFamilly_st:
+			LWC = 0.29;
+			break;
+		case SGNewCloud::CLFamilly_cu:
+			LWC = 0.27;
+			break;
+		case SGNewCloud::CLFamilly_cb:
+			LWC = 2.0;
+			break;
+		case SGNewCloud::CLFamilly_sc:
+			LWC = 0.44;
+			break;
+		case SGNewCloud::CLFamilly_ci:
+			LWC = 0.03;
+			break;
+		// no data
+		case SGNewCloud::CLFamilly_cs:
+		case SGNewCloud::CLFamilly_cc:
+		case SGNewCloud::CLFamilly_ac:
+		case SGNewCloud::CLFamilly_as:
+			LWC = 0.03;
+			break;
+		case SGNewCloud::CLFamilly_ns:
+			LWC = 0.29*2.0;
+			break;
+	}
+	// add to the list for the wxRadar instrument
+	if( LWC > 0.0 )
+		radarEcho.push_back( SGWxRadarEcho ( heading, alt, radius, dist, LWC, false, cloudId ) );
+
+	// NB:data valid only from cockpit view
+
+	// spawn a new lightning
+	if(lightning_enable_state && min_time_before_lt <= 0.0 && (familly == SGNewCloud::CLFamilly_cb) &&
+		dist < 15000.0 * 15000.0 && sg_random() > 0.9f) {
+		double lat, lon;
+		Point3D orig, dest;
+		orig.setlat(last_lat * SG_DEGREES_TO_RADIANS );
+		orig.setlon(last_lon * SG_DEGREES_TO_RADIANS );
+		orig.setelev(0.0);
+		dist = sgSqrt(dist);
+		dest = calc_gc_lon_lat(orig, heading, dist);
+		lon = dest.lon() * SG_RADIANS_TO_DEGREES;
+		lat = dest.lat() * SG_RADIANS_TO_DEGREES;
+		addLightning( lon, lat, alt );
+
+		// reset timer
+		min_time_before_lt = 5.0 + sg_random() * 30;
+		// DEBUG only
+//		min_time_before_lt = 5.0;
+	}
+	if( (alt - radius * 0.1) > precipitation_max_alt )
+		switch(familly) {
+			case SGNewCloud::CLFamilly_st:
+			case SGNewCloud::CLFamilly_cu:
+			case SGNewCloud::CLFamilly_cb:
+			case SGNewCloud::CLFamilly_ns:
+			case SGNewCloud::CLFamilly_sc:
+				precipitation_max_alt = alt - radius * 0.1;
+				break;
+		}
+}
+
+list_of_SGWxRadarEcho *SGEnviro::get_radar_echo(void) {
+	return &radarEcho;
+}
+
+// precipitation rendering code
+void SGEnviro::DrawCone2(float baseRadius, float height, int slices, bool down, double rain_norm, double speed) {
+
+	sgVec3 light;
+	sgVec3 min_light = {0.35, 0.35, 0.35};
+	sgAddVec3( light, fog_color, min_light );
+	float da = SG_PI * 2.0f / (float) slices;
+	// low number = faster
+	float speedf = 2.5f - speed / 200.0;
+	if( speedf < 1.0f )
+		speedf = 1.0f;
+	float lenf = 0.03f + speed / 2000.0;
+	if( lenf > 0.10f )
+		lenf = 0.10f;
+    float t = fmod((float) elapsed_time, speedf) / speedf;
+//	t = 0.1f;
+	if( !down )
+		t = 1.0f - t;
+	float angle = 0.0f;
+	glColor4f(1.0f, 0.7f, 0.7f, 0.9f);
+	glBegin(GL_LINES);
+	int rainpos_indice = 0;
+	for( int i = 0 ; i < slices ; i++ ) {
+		float x = cos(angle) * baseRadius;
+		float y = sin(angle) * baseRadius;
+		angle += da;
+		sgVec3 dir = {x, -height, y};
+
+		// rain drops at 2 different speed to simulate depth
+		float t1 = (i & 1 ? t : t + t) + rainpos[rainpos_indice];
+		if(t1 > 1.0f)	t1 -= 1.0f;
+		if(t1 > 1.0f)	t1 -= 1.0f;
+
+		// distant raindrops are more transparent
+		float c = (i & 1 ? t1 * 0.5f : t1 * 0.9f);
+		glColor4f(c * light[0], c * light[1], c * light[2], c);
+		sgVec3 p1, p2;
+		sgScaleVec3(p1, dir, t1);
+		// distant raindrops are shorter
+		float t2 = t1 + (i & 1 ? lenf : lenf+lenf);
+		sgScaleVec3(p2, dir, t2);
+
+		glVertex3f(p1[0], p1[1] + height, p1[2]);
+		glVertex3f(p2[0], p2[1] + height, p2[2]);
+		if( ++rainpos_indice >= MAX_RAIN_SLICE )
+			rainpos_indice = 0;
+	}
+	glEnd();
+}
+
+void SGEnviro::drawRain(double pitch, double roll, double heading, double speed, double rain_norm) {
+
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	glDisable(GL_DEPTH_TEST);
+	glShadeModel(GL_SMOOTH);
+	glEnable(GL_BLEND);
+	glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA );
+	glDisable( GL_FOG );
+	glDisable(GL_LIGHTING);
+
+	int slice_count = (40.0 + rain_norm*150.0)* precipitation_density / 100.0;
+
+	float angle = speed;
+	if( angle > 90.0 )
+		angle = 90.0;
+
+	glPushMatrix();
+		// TODO:find the real view orientation, not the AC one
+		// the cone rotate with speed
+		angle = -pitch - angle;
+		glRotatef(angle, 1.0, 0.0, 0.0);
+		glRotatef(roll, 0.0, 1.0, 0.0);
+		glRotatef(heading, 0.0, 0.0, 1.0);
+
+		// up cone
+		DrawCone2(15.0, 30.0, slice_count, true, rain_norm, speed);
+		// down cone (usually not visible)
+		if(angle > 0.0 || heading != 0.0)
+			DrawCone2(15.0, -30.0, slice_count, false, rain_norm, speed);
+
+	glPopMatrix();
+
+	glEnable(GL_LIGHTING);
+	glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
+	glEnable( GL_FOG );
+	glEnable(GL_DEPTH_TEST);
+
+}
+
+void SGEnviro::set_soundMgr(SGSoundMgr *mgr) {
+	soundMgr = mgr;
+}
+
+void SGEnviro::drawPrecipitation(double rain_norm, double snow_norm, double hail_norm, double pitch, double roll, double heading, double speed) {
+	if( precipitation_enable_state && rain_norm > 0.0)
+	  if( precipitation_max_alt >= last_alt )
+		drawRain(pitch, roll, heading, speed, rain_norm);
+}
+
+
+SGLightning::SGLightning(double _lon, double _lat, double _alt) :
+	lon(_lon),
+	lat(_lat),
+	alt(_alt),
+	age(1.0 + sg_random() * 4.0),
+	nb_tree(0)
+{
+//	sequence_count = 1 + sg_random() * 5.0;
+	lt_build();
+}
+
+SGLightning::~SGLightning() {
+}
+
+// lightning rendering code
+void SGLightning::lt_build_tree_branch(int tree_nr, Point3D &start, float energy, int nbseg, float segsize) {
+
+	sgVec3 dir, newdir;
+	int nseg = 0;
+	Point3D pt = start;
+	if( nbseg == 50 )
+		sgSetVec3( dir, 0.0, -1.0, 0.0 );
+	else {
+		sgSetVec3( dir, sg_random() - 0.5f, sg_random() - 0.5f, sg_random() - 0.5f);
+		sgNormaliseVec3(dir);
+	}
+	if( nb_tree >= MAX_LT_TREE_SEG )
+		return;
+
+	lt_tree[nb_tree].depth = tree_nr;
+	nseg = 0;
+	lt_tree[nb_tree].pt = pt;
+	lt_tree[nb_tree].prev = -1;
+	nb_tree ++;
+
+	// TODO:check agl
+	while(nseg < nbseg && pt.y() > 0.0) {
+        int prev = nb_tree - 1;
+        nseg++;
+		// add a branch
+        if( energy * sg_random() > 0.8f )
+			lt_build_tree_branch(tree_nr + 1, pt, energy * 0.9f, nbseg == 50 ? 10 : nbseg * 0.4f, segsize * 0.7f);
+
+		if( nb_tree >= MAX_LT_TREE_SEG )
+			return;
+		sgSetVec3(newdir, (sg_random() - 0.5f), (sg_random() - 0.5f) - (nbseg == 50 ? 0.5f : 0.0), (sg_random() - 0.5f));
+		sgNormaliseVec3(newdir);
+		sgAddVec3( dir, newdir);
+		sgNormaliseVec3(dir);
+		sgVec3 scaleDir;
+		sgScaleVec3( scaleDir, dir, segsize * energy * 0.5f );
+		pt[PX] += scaleDir[0];
+		pt[PY] += scaleDir[1];
+		pt[PZ] += scaleDir[2];
+
+		lt_tree[nb_tree].depth = tree_nr;
+		lt_tree[nb_tree].pt = pt;
+		lt_tree[nb_tree].prev = prev;
+		nb_tree ++;
+	}
+}
+
+void SGLightning::lt_build(void) {
+    Point3D top;
+    nb_tree = 0;
+    top[PX] = 0 ;
+    top[PY] = alt;
+    top[PZ] = 0;
+    lt_build_tree_branch(0, top, 1.0, 50, top[PY] / 8.0);
+	if( ! sgEnviro.soundMgr )
+		return;
+	Point3D start( sgEnviro.last_lon*SG_DEGREES_TO_RADIANS, sgEnviro.last_lat*SG_DEGREES_TO_RADIANS, 0.0 );
+	Point3D dest( lon*SG_DEGREES_TO_RADIANS, lat*SG_DEGREES_TO_RADIANS, 0.0 );
+	double course = 0.0, dist = 0.0;
+	calc_gc_course_dist( dest, start, &course, &dist );
+	if( dist < 10000.0 && ! sgEnviro.snd_playing && (dist < sgEnviro.snd_dist || ! sgEnviro.snd_active) ) {
+		sgEnviro.snd_timer = 0.0;
+		sgEnviro.snd_wait  = dist / 340;
+		sgEnviro.snd_dist  = dist;
+		sgEnviro.snd_pos_lat = lat;
+		sgEnviro.snd_pos_lon = lon;
+		sgEnviro.snd_active = true;
+		sgEnviro.snd_playing = false;
+	}
+}
+
+
+void SGLightning::lt_Render(void) {
+	float flash = 0.5;
+	if( fmod(sgEnviro.elapsed_time*100.0, 100.0) > 50.0 )
+		flash = sg_random() * 0.75f + 0.25f;
+    float h = lt_tree[0].pt[PY];
+	sgVec4 col={0.62f, 0.83f, 1.0f, 1.0f};
+	sgVec4 c;
+
+#define DRAW_SEG() \
+			{glBegin(GL_LINES); \
+				glColor4fv(c); \
+                glVertex3f(lt_tree[n].pt[PX], lt_tree[n].pt[PZ], lt_tree[n].pt[PY]); \
+                glVertex3f(lt_tree[lt_tree[n].prev].pt[PX], lt_tree[lt_tree[n].prev].pt[PZ], lt_tree[lt_tree[n].prev].pt[PY]); \
+			glEnd();}
+
+	glDepthMask( GL_FALSE );
+	glEnable(GL_BLEND);
+	glBlendFunc( GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+	glBindTexture(GL_TEXTURE_2D, 0);
+
+	glDisable(GL_LIGHTING);
+	glDisable( GL_FOG );
+	glPushMatrix();
+	sgMat4 modelview, tmp;
+    ssgGetModelviewMatrix( modelview );
+	sgCopyMat4( tmp, sgEnviro.transform );
+    sgPostMultMat4( tmp, modelview );
+    ssgLoadModelviewMatrix( tmp );
+
+    Point3D start( sgEnviro.last_lon*SG_DEGREES_TO_RADIANS, sgEnviro.last_lat*SG_DEGREES_TO_RADIANS, 0.0 );
+    Point3D dest( lon*SG_DEGREES_TO_RADIANS, lat*SG_DEGREES_TO_RADIANS, 0.0 );
+    double course = 0.0, dist = 0.0;
+    calc_gc_course_dist( dest, start, &course, &dist );
+    double ax = 0.0, ay = 0.0;
+    ax = cos(course) * dist;
+    ay = sin(course) * dist;
+
+	glTranslatef( ax, ay, -sgEnviro.last_alt );
+
+	sgEnviro.radarEcho.push_back( SGWxRadarEcho ( course, 0.0, 0.0, dist, age, true, 0 ) );
+
+	for( int n = 0 ; n < nb_tree ; n++ ) {
+        if( lt_tree[n].prev < 0 )
+			continue;
+
+        float t1 = sgLerp(0.5, 1.0, lt_tree[n].pt[PY] / h);
+		t1 *= flash;
+		if( lt_tree[n].depth >= 2 ) {
+            glLineWidth(3);
+			sgScaleVec4(c, col, t1 * 0.6f);
+			DRAW_SEG();
+		} else {
+			if( lt_tree[n].depth == 0 ) {
+                glLineWidth(12);
+				sgScaleVec4(c, col, t1 * 0.5f);
+				DRAW_SEG();
+
+                glLineWidth(6);
+				sgScaleVec4(c, col, t1);
+				DRAW_SEG();
+			} else {
+                glLineWidth(6);
+				sgScaleVec4(c, col, t1 * 0.7f);
+				DRAW_SEG();
+			}
+
+            if( lt_tree[n].depth == 0 ) 
+                glLineWidth(3);
+			else
+                glLineWidth(2);
+
+            sgSetVec4(c, t1, t1, t1, t1);
+			DRAW_SEG();
+		}
+
+	}
+    glLineWidth(1);
+	glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
+	glPopMatrix();
+	glDepthMask( GL_TRUE );	
+	glEnable( GL_FOG );
+	glEnable(GL_LIGHTING);
+}
+
+void SGEnviro::addLightning(double lon, double lat, double alt) {
+	if( lightnings.size() > 10)
+		return;
+	SGLightning *lt= new SGLightning(lon, lat, alt);
+	lightnings.push_back(lt);
+}
+
+void SGEnviro::drawLightning(void) {
+	list_of_lightning::iterator iLightning;
+	// play 'thunder' for lightning
+	if( snd_active )
+		if( !snd_playing ) {
+			// wait until sound has reached us
+			snd_timer += dt;
+			if( snd_timer >= snd_wait ) {
+				snd_playing = true;
+				// compute relative position of lightning
+				Point3D start( sgEnviro.last_lon*SG_DEGREES_TO_RADIANS, sgEnviro.last_lat*SG_DEGREES_TO_RADIANS, 0.0 );
+				Point3D dest( snd_pos_lon*SG_DEGREES_TO_RADIANS, snd_pos_lat*SG_DEGREES_TO_RADIANS, 0.0 );
+				double course = 0.0, dist = 0.0;
+				calc_gc_course_dist( dest, start, &course, &dist );
+				double ax = 0.0, ay = 0.0;
+				ax = cos(course) * dist;
+				ay = sin(course) * dist;
+				SGSoundSample *snd = soundMgr->find("thunder");
+				if( snd ) {
+					ALfloat pos[3]={ax, ay, -sgEnviro.last_alt };
+					snd->set_source_pos(pos);
+					snd->play_once();
+				}
+			}
+		} else {
+			if( !soundMgr->is_playing("thunder") ) {
+				snd_active = false;
+				snd_playing = false;
+			}
+		}
+
+	if( ! lightning_enable_state )
+		return;
+
+	for( iLightning = lightnings.begin() ; iLightning != lightnings.end() ; iLightning++ ) {
+		if( dt )
+			if( sg_random() > 0.95f )
+				(*iLightning)->lt_build();
+		(*iLightning)->lt_Render();
+		(*iLightning)->age -= dt;
+		if( (*iLightning)->age < 0.0 ) {
+			delete (*iLightning);
+			lightnings.erase( iLightning );
+			break;
+		}
+	}
+
+}
+
+
+void SGEnviro::setFOV( float w, float h ) {
+	fov_width = w;
+	fov_height = h;
+}
+
+void SGEnviro::getFOV( float &w, float &h ) {
+	w = fov_width;
+	h = fov_height;
+}

simgear/environment/visual_enviro.hxx

@@ -0,0 +1,228 @@
+// Visual environment helper class
+//
+// Written by Harald JOHNSEN, started April 2005.
+//
+// Copyright (C) 2005  Harald JOHNSEN - hjohnsen@evc.net
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program 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 for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+//
+//
+#ifndef _VISUAL_ENVIRO_HXX
+#define _VISUAL_ENVIRO_HXX
+
+#include <simgear/compiler.h>
+#include STL_STRING
+#include <vector>
+
+SG_USING_STD(vector);
+SG_USING_STD(string);
+
+class SGLightning;
+class SGSoundMgr;
+
+/**
+ * Simulate some echo on a weather radar.
+ * Container class for the wx radar instrument.
+ */
+class SGWxRadarEcho {
+public:
+	SGWxRadarEcho(float _heading, float _alt, float _radius, float _dist, double _LWC, bool _lightning, int _cloudId) :
+	  heading( _heading ),
+	  alt ( _alt ),
+	  radius ( _radius ),
+	  dist ( _dist ),
+	  LWC ( _LWC ),
+	  lightning ( _lightning ),
+	  cloudId ( _cloudId )
+	{}
+
+	/** the heading in radian is versus north */
+	float heading;
+	float alt, radius, dist;
+	/** reflectivity converted to liquid water content. */
+	double LWC;
+	/** if true then this data is for a lightning else it is for water echo. */
+	bool   lightning;
+	/** Unique identifier of cloud */
+	int cloudId;
+};
+
+typedef vector<SGWxRadarEcho> list_of_SGWxRadarEcho;
+
+/**
+ * Visual environment helper class.
+ */
+class SGEnviro {
+friend class SGLightning;
+private:
+	void DrawCone2(float baseRadius, float height, int slices, bool down, double rain_norm, double speed);
+	void lt_update(void);
+
+	bool view_in_cloud;
+	bool precipitation_enable_state;
+	float precipitation_density;
+	float precipitation_max_alt;
+	bool turbulence_enable_state;
+	double last_cloud_turbulence, cloud_turbulence;
+	bool lightning_enable_state;
+	double elapsed_time, dt;
+	sgVec4	fog_color;
+	sgMat4 transform;
+	double last_lon, last_lat, last_alt;
+	SGSoundMgr	*soundMgr;
+	bool		snd_active, snd_playing;
+	double		snd_timer, snd_wait, snd_pos_lat, snd_pos_lon, snd_dist;
+	double		min_time_before_lt;
+
+	float fov_width, fov_height;
+
+	/** a list of all the radar echo. */
+	list_of_SGWxRadarEcho radarEcho;
+
+public:
+	SGEnviro();
+	~SGEnviro();
+
+    /**
+     * Forward a few states used for renderings.
+     */
+	void startOfFrame( sgVec3 p, sgVec3 up, double lon, double lat, double alt, double delta_time);
+
+	void endOfFrame(void);
+
+    /**
+     * Whenever a cloud is drawn we check his 'impact' on the environment.
+     * @param heading direction of cloud in radians
+     * @param alt asl of cloud in meters
+     * @param radius radius of cloud in meters
+     * @param familly cloud familly
+     * @param dist  squared dist to cloud in meters
+     */
+	void callback_cloud(float heading, float alt, float radius, int familly, float dist, int cloudId);
+
+	void drawRain(double pitch, double roll, double heading, double speed, double rain_norm);
+    /**
+     * Draw rain or snow precipitation around the viewer.
+     * @param rain_norm rain normalized intensity given by metar class
+     * @param snow_norm snow normalized intensity given by metar class
+     * @param hail_norm hail normalized intensity given by metar class
+     * @param pitch pitch rotation of viewer
+     * @param roll roll rotation of viewer
+     * @param speed moving speed of viewer in kt
+     */
+	void drawPrecipitation(double rain_norm, double snow_norm, double hail_norm,
+							double pitch, double roll, double heading, double speed);
+
+    /**
+     * Draw the lightnings spawned by cumulo nimbus.
+     */
+	void drawLightning(void);
+
+    /**
+     * Forward the fog color used by the rain rendering.
+     * @param adj_fog_color color of the fog
+     */
+	void setLight(sgVec4 adj_fog_color);
+
+	// this can be queried to add some turbulence for example
+	bool is_view_in_cloud(void) const;
+	void set_view_in_cloud(bool incloud);
+	double get_cloud_turbulence(void) const;
+
+	// Clouds
+	// return the size of the memory pool used by texture impostors
+	int get_clouds_CacheSize(void) const;
+	int get_CacheResolution(void) const;
+	float get_clouds_visibility(void) const;
+	float get_clouds_density(void) const;
+	bool get_clouds_enable_state(void) const;
+	bool get_turbulence_enable_state(void) const;
+
+    /**
+     * Set the size of the impostor texture cache for 3D clouds.
+     * @param sizeKb size of the texture pool in Kb
+     */
+	void set_clouds_CacheSize(int sizeKb);
+    /**
+     * Set the resolution of the impostor texture for 3D clouds.
+     * @param resolutionPixels size of each texture in pixels (64|128|256)
+     */
+	void set_CacheResolution(int resolutionPixels);
+    /**
+     * Set the maximum range used when drawing clouds.
+	 * Clouds are blended from totaly transparent at max range to totaly opaque around the viewer
+     * @param distance in meters
+     */
+	void set_clouds_visibility(float distance);
+    /**
+     * Set the proportion of clouds that will be rendered to limit drop in FPS.
+     * @param density 0..100 no clouds drawn when density == 0, all are drawn when density == 100
+     */
+	void set_clouds_density(float density);
+    /**
+     * Enable or disable the use of 3D clouds.
+     * @param enable when false we draw the 2D layers
+     */
+	void set_clouds_enable_state(bool enable);
+    /**
+     * Enable or disable the use of proximity cloud turbulence.
+     * @param enable when true the turbulence is computed based on type of cloud around the AC
+     */
+	void set_turbulence_enable_state(bool enable);
+
+	// rain/snow
+	float get_precipitation_density(void) const;
+	bool get_precipitation_enable_state(void) const;
+
+	void set_precipitation_density(float density);
+    /**
+     * Enable or disable the rendering of precipitation around the viewer.
+     * @param enable when true we will draw precipitation depending on metar data
+     */
+	void set_precipitation_enable_state(bool enable);
+
+	// others
+	bool get_lightning_enable_state(void) const;
+    /**
+     * Enable or disable the rendering of lightning and the thunder sound.
+     * @param enable when true we will draw lightning spwaned by cumulonimbus
+     */
+	void set_lightning_enable_state(bool enable);
+
+    /**
+     * Spawn a new lighning at specified lon/lat.
+     * @param lon position of the new lightning
+     * @param lat position of the new lightning
+     * @param alt asl of the starting point of the lightning in meters
+     */
+	void addLightning(double lon, double lat, double alt);
+
+    /**
+     * Forward the sound manager instance to be able to play samples.
+     * @param mgr a running sound manager
+     */
+	void set_soundMgr(SGSoundMgr *mgr);
+
+	void setFOV( float w, float h );
+	void getFOV( float &w, float &h );
+
+	list_of_SGWxRadarEcho *get_radar_echo(void);
+
+	sgMat4 *get_transform(void) { return &transform; }
+};
+
+extern SGEnviro sgEnviro;
+
+#endif // _VISUAL_ENVIRO_HXX

simgear/ephemeris/Makefile.am

@@ -4,7 +4,7 @@ lib_LIBRARIES = libsgephem.a
 
 include_HEADERS = \
 	celestialBody.hxx \
-        ephemeris.hxx \
+	ephemeris.hxx \
 	jupiter.hxx \
 	mars.hxx \
 	mercury.hxx \

simgear/ephemeris/ephemeris.cxx

@@ -3,7 +3,7 @@
 //
 // Written by Curtis Olson, started March 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -22,6 +22,11 @@
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
+#include <iostream>
 
 #include "ephemeris.hxx"
 
@@ -37,6 +42,10 @@ SGEphemeris::SGEphemeris( const string &path ) {
     saturn = new Saturn;
     uranus = new Uranus;
     neptune = new Neptune;
+    nplanets = 7;
+    for ( int i = 0; i < nplanets; ++i ) {
+        sgdSetVec3( planets[i], 0.0, 0.0, 0.0 );
+    }
     stars = new SGStarData( SGPath(path) );
 }
 

simgear/ephemeris/ephemeris.hxx

@@ -7,7 +7,7 @@
 // All the core code underneath this is written by Durk Talsma.  See
 // the headers of all the other individual files for details.
 //
-// Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -48,7 +48,7 @@
 /** Ephemeris class
  *
  * Written by Durk Talsma <d.talsma@direct.a2000.nl> and Curtis Olson
- * <curt@flightgear.org>
+ * <http://www.flightgear.org/~curt>
  *
  * Introduction 
  *

simgear/ephemeris/moonpos.cxx

@@ -172,7 +172,7 @@ void MoonPos::updatePosition(double mjd, double lst, double lat, Star *ourSun)
   // SG_LOG( SG_GENERAL, SG_INFO, "rho = " << rho );
   
   if (geoRa < 0)
-    geoRa += (2*SGD_PI);
+    geoRa += SGD_2PI;
   
   HA = lst - (3.8197186 * geoRa);
   /* SG_LOG( SG_GENERAL, SG_INFO, "t->getLst() = " << t->getLst() 

simgear/ephemeris/star.cxx

@@ -80,7 +80,7 @@ void Star::updatePosition(double mjd)
   double 
     actTime, eccAnom, 
     xv, yv, v, r,
-    xe, ye, ze, ecl;
+    xe, ecl;
 
   updateOrbElements(mjd);
   

simgear/ephemeris/star.hxx

@@ -35,6 +35,7 @@ class Star : public CelestialBody
 private:
 
     double xs, ys;     // the sun's rectangular geocentric coordinates
+    double ye, ze;     // the sun's rectangularequatorial rectangular geocentric coordinates
     double distance;   // the sun's distance to the earth
 
 public:
@@ -47,6 +48,8 @@ public:
     double getw();
     double getxs();
     double getys();
+    double getye();
+    double getze();
     double getDistance();
 };
 
@@ -71,6 +74,16 @@ inline double Star::getys()
   return ys;
 }
 
+inline double Star::getye()
+{
+   return ye;
+}
+
+inline double Star::getze()
+{
+   return ze;
+}
+
 inline double Star::getDistance()
 {
   return distance;

simgear/ephemeris/stardata.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started March 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -21,13 +21,16 @@
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
 
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/sgstream.hxx>
 
 #include "stardata.hxx"
 
-#if defined (_MSC_VER) || defined (SG_HAVE_NATIVE_SGI_COMPILERS)
+#if defined (_MSC_VER)
   SG_USING_STD(getline);
 #endif
 

simgear/ephemeris/stardata.hxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started March 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public

simgear/io/Makefile.am

@@ -22,12 +22,6 @@ libsgio_a_SOURCES = \
 
 INCLUDES = -I$(top_srcdir)
 
-if IS_MINGW
-NETWORK_LIB = -lwsock32
-else
-NETWORK_LIB =
-endif
-
 noinst_PROGRAMS = decode_binobj socktest lowtest tcp_server tcp_client
 
 tcp_server_SOURCES = tcp_server.cxx
@@ -37,8 +31,9 @@ tcp_server_LDADD = \
 	$(top_builddir)/simgear/debug/libsgdebug.a \
 	$(top_builddir)/simgear/bucket/libsgbucket.a \
 	$(top_builddir)/simgear/misc/libsgmisc.a \
-	$(top_builddir)/simgear/xml/libsgxml.a \
-	-lplibnet -lplibul -lz $(NETWORK_LIB)
+	-lplibnet -lplibul -lz \
+	$(network_LIBS) \
+	$(base_LIBS)
 
 tcp_client_SOURCES = tcp_client.cxx
 
@@ -47,30 +42,35 @@ tcp_client_LDADD = \
 	$(top_builddir)/simgear/debug/libsgdebug.a \
 	$(top_builddir)/simgear/bucket/libsgbucket.a \
 	$(top_builddir)/simgear/misc/libsgmisc.a \
-        $(top_builddir)/simgear/xml/libsgxml.a \
-	-lplibnet -lplibul -lz $(NETWORK_LIB)
+	-lplibnet -lplibul -lz \
+	$(network_LIBS) \
+	$(base_LIBS)
 
 socktest_SOURCES = socktest.cxx
 
 socktest_LDADD = \
-	$(top_builddir)/simgear/bucket/libsgbucket.a \
-        $(top_builddir)/simgear/io/libsgio.a \
+	$(top_builddir)/simgear/io/libsgio.a \
 	$(top_builddir)/simgear/debug/libsgdebug.a \
+	$(top_builddir)/simgear/bucket/libsgbucket.a \
 	$(top_builddir)/simgear/misc/libsgmisc.a \
-	$(top_builddir)/simgear/xml/libsgxml.a \
-	-lplibnet -lplibul -lz $(NETWORK_LIB)
+	-lplibnet -lplibul -lz \
+	$(network_LIBS) \
+	$(base_LIBS)
 
 lowtest_SOURCES = lowtest.cxx
 
 lowtest_LDADD = \
-	$(top_builddir)/simgear/io/libsgio.a
+	$(top_builddir)/simgear/io/libsgio.a \
+	$(top_builddir)/simgear/debug/libsgdebug.a \
+	$(top_builddir)/simgear/bucket/libsgbucket.a \
+	$(top_builddir)/simgear/misc/libsgmisc.a \
+	$(base_LIBS) -lz
 
 decode_binobj_SOURCES = decode_binobj.cxx
 
 decode_binobj_LDADD = \
 	$(top_builddir)/simgear/io/libsgio.a \
-        $(top_builddir)/simgear/bucket/libsgbucket.a \
-        $(top_builddir)/simgear/misc/libsgmisc.a \
-        $(top_builddir)/simgear/debug/libsgdebug.a \
-	$(top_builddir)/simgear/xml/libsgxml.a \
-	-lz
+	$(top_builddir)/simgear/debug/libsgdebug.a \
+	$(top_builddir)/simgear/bucket/libsgbucket.a \
+	$(top_builddir)/simgear/misc/libsgmisc.a \
+	$(base_LIBS) -lz

simgear/io/decode_binobj.cxx

@@ -1,14 +1,16 @@
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include <simgear/compiler.h>
 
 #include <unistd.h>
 #include STL_IOSTREAM
 
-#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
+#include "sg_binobj.hxx"
+
 SG_USING_STD(cout);
 SG_USING_STD(endl);
-#endif
-
-#include "sg_binobj.hxx"
 
 
 int main( int argc, char **argv ) {

simgear/io/iochannel.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -70,3 +70,9 @@ int SGIOChannel::writestring( const char *str ) {
 bool SGIOChannel::close() {
     return false;
 }
+
+
+// dummy eof routine
+bool SGIOChannel::eof() {
+    return false;
+}

simgear/io/iochannel.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -152,6 +152,14 @@ public:
      */
     virtual bool close();
 
+    /**
+     * The eof() method returns true if end of file has been reached
+     * in a context where that makes sense.  Otherwise it returns
+     * false.
+     * @return result of eof check
+     */
+    virtual bool eof();
+
     inline void set_type( SGChannelType t ) { type = t; }
     inline SGChannelType get_type() const { return type; }
 

simgear/io/lowlevel.cxx

@@ -4,7 +4,7 @@
 // Shamelessly adapted from plib (plib.sourceforge.net) January 2001
 //
 // Original version Copyright (C) 2000  the plib team
-// Local changes Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Local changes Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -59,7 +59,7 @@ void sgReadFloat ( gzFile fd, float *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)var);
+        sgEndianSwap( (uint32_t *)var);
     }
 }
 
@@ -67,7 +67,7 @@ void sgReadFloat ( gzFile fd, float *var )
 void sgWriteFloat ( gzFile fd, const float var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)&var);
+        sgEndianSwap( (uint32_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(float) ) != sizeof(float) ) {
         write_error = true ;
@@ -81,7 +81,7 @@ void sgReadDouble ( gzFile fd, double *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (uint64*)var);
+        sgEndianSwap( (uint64_t *)var);
     }
 }
 
@@ -89,7 +89,7 @@ void sgReadDouble ( gzFile fd, double *var )
 void sgWriteDouble ( gzFile fd, const double var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (uint64*)&var);
+        sgEndianSwap( (uint64_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(double) ) != sizeof(double) ) {
         write_error = true ;
@@ -103,7 +103,7 @@ void sgReadUInt ( gzFile fd, unsigned int *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)var);
+        sgEndianSwap( (uint32_t *)var);
     }
 }
 
@@ -111,7 +111,7 @@ void sgReadUInt ( gzFile fd, unsigned int *var )
 void sgWriteUInt ( gzFile fd, const unsigned int var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)&var);
+        sgEndianSwap( (uint32_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(unsigned int) )
 	 != sizeof(unsigned int) )
@@ -127,7 +127,7 @@ void sgReadInt ( gzFile fd, int *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)var);
+        sgEndianSwap( (uint32_t *)var);
     }
 }
 
@@ -135,7 +135,7 @@ void sgReadInt ( gzFile fd, int *var )
 void sgWriteInt ( gzFile fd, const int var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)&var);
+        sgEndianSwap( (uint32_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(int) ) != sizeof(int) ) {
         write_error = true ;
@@ -143,48 +143,48 @@ void sgWriteInt ( gzFile fd, const int var )
 }
 
 
-void sgReadLong ( gzFile fd, long int *var )
+void sgReadLong ( gzFile fd, int32_t *var )
 {
-    if ( gzread ( fd, var, sizeof(long int) ) != sizeof(long int) ) {
+    if ( gzread ( fd, var, sizeof(int32_t) ) != sizeof(int32_t) ) {
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)var);
+        sgEndianSwap( (uint32_t *)var);
     }
 }
 
 
-void sgWriteLong ( gzFile fd, const long int var )
+void sgWriteLong ( gzFile fd, const int32_t var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned int*)&var);
+        sgEndianSwap( (uint32_t *)&var);
     }
-    if ( gzwrite ( fd, (void *)(&var), sizeof(long int) )
-         != sizeof(long int) )
+    if ( gzwrite ( fd, (void *)(&var), sizeof(int32_t) )
+         != sizeof(int32_t) )
     {
         write_error = true ;
     }
 }
 
 
-void sgReadLongLong ( gzFile fd, int64 *var )
+void sgReadLongLong ( gzFile fd, int64_t *var )
 {
-    if ( gzread ( fd, var, sizeof(int64) ) != sizeof(int64) ) {
+    if ( gzread ( fd, var, sizeof(int64_t) ) != sizeof(int64_t) ) {
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (uint64*)var);
+        sgEndianSwap( (uint64_t *)var);
     }
 }
 
 
-void sgWriteLongLong ( gzFile fd, const int64 var )
+void sgWriteLongLong ( gzFile fd, const int64_t var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (uint64*)&var);
+        sgEndianSwap( (uint64_t *)&var);
     }
-    if ( gzwrite ( fd, (void *)(&var), sizeof(int64) )
-         != sizeof(int64) )
+    if ( gzwrite ( fd, (void *)(&var), sizeof(int64_t) )
+         != sizeof(int64_t) )
     {
         write_error = true ;
     }
@@ -197,7 +197,7 @@ void sgReadUShort ( gzFile fd, unsigned short *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned short int*)var);
+        sgEndianSwap( (uint16_t *)var);
     }
 }
 
@@ -205,7 +205,7 @@ void sgReadUShort ( gzFile fd, unsigned short *var )
 void sgWriteUShort ( gzFile fd, const unsigned short var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned short*)&var);
+        sgEndianSwap( (uint16_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(unsigned short) )
 	 != sizeof(unsigned short) )
@@ -221,7 +221,7 @@ void sgReadShort ( gzFile fd, short *var )
         read_error = true ;
     }
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned short int*)var);
+        sgEndianSwap( (uint16_t *)var);
     }
 }
 
@@ -229,7 +229,7 @@ void sgReadShort ( gzFile fd, short *var )
 void sgWriteShort ( gzFile fd, const short var )
 {
     if ( sgIsBigEndian() ) {
-        sgEndianSwap( (unsigned short*)&var);
+        sgEndianSwap( (uint16_t *)&var);
     }
     if ( gzwrite ( fd, (void *)(&var), sizeof(short) ) != sizeof(short) ) {
         write_error = true ;
@@ -244,7 +244,7 @@ void sgReadFloat ( gzFile fd, const unsigned int n, float *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)var++);
+            sgEndianSwap( (uint32_t *)var++);
         }
     }
 }
@@ -257,7 +257,7 @@ void sgWriteFloat ( gzFile fd, const unsigned int n, const float *var )
         float *ptr = swab;
         memcpy( swab, var, sizeof(float) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)ptr++);
+            sgEndianSwap( (uint32_t *)ptr++);
         }
         var = swab;
     }
@@ -275,7 +275,7 @@ void sgReadDouble ( gzFile fd, const unsigned int n, double *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (uint64*)var++);
+            sgEndianSwap( (uint64_t *)var++);
         }
     }
 }
@@ -288,7 +288,7 @@ void sgWriteDouble ( gzFile fd, const unsigned int n, const double *var )
         double *ptr = swab;
         memcpy( swab, var, sizeof(double) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (uint64*)ptr++);
+            sgEndianSwap( (uint64_t *)ptr++);
         }
         var = swab;
     }
@@ -325,7 +325,7 @@ void sgReadUShort ( gzFile fd, const unsigned int n, unsigned short *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned short int*)var++);
+            sgEndianSwap( (uint16_t *)var++);
         }
     }
 }
@@ -338,7 +338,7 @@ void sgWriteUShort ( gzFile fd, const unsigned int n, const unsigned short *var
         unsigned short *ptr = swab;
         memcpy( swab, var, sizeof(unsigned short) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned short*)ptr++);
+            sgEndianSwap( (uint16_t *)ptr++);
         }
         var = swab;
     }
@@ -360,7 +360,7 @@ void sgReadShort ( gzFile fd, const unsigned int n, short *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned short int*)var++);
+            sgEndianSwap( (uint16_t *)var++);
         }
     }
 }
@@ -373,7 +373,7 @@ void sgWriteShort ( gzFile fd, const unsigned int n, const short *var )
         short *ptr = swab;
         memcpy( swab, var, sizeof(short) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned short*)ptr++);
+            sgEndianSwap( (uint16_t *)ptr++);
         }
         var = swab;
     }
@@ -394,7 +394,7 @@ void sgReadUInt ( gzFile fd, const unsigned int n, unsigned int *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)var++);
+            sgEndianSwap( (uint32_t *)var++);
         }
     }
 }
@@ -407,7 +407,7 @@ void sgWriteUInt ( gzFile fd, const unsigned int n, const unsigned int *var )
         unsigned int *ptr = swab;
         memcpy( swab, var, sizeof(unsigned int) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)ptr++);
+            sgEndianSwap( (uint32_t *)ptr++);
         }
         var = swab;
     }
@@ -429,7 +429,7 @@ void sgReadInt ( gzFile fd, const unsigned int n, int *var )
     }
     if ( sgIsBigEndian() ) {
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)var++);
+            sgEndianSwap( (uint32_t *)var++);
         }
     }
 }
@@ -442,7 +442,7 @@ void sgWriteInt ( gzFile fd, const unsigned int n, const int *var )
         int *ptr = swab;
         memcpy( swab, var, sizeof(int) * n );
         for ( unsigned int i = 0; i < n; ++i ) {
-            sgEndianSwap( (unsigned int*)ptr++);
+            sgEndianSwap( (uint32_t *)ptr++);
         }
         var = swab;
     }

simgear/io/lowlevel.hxx

@@ -4,7 +4,7 @@
 // Shamelessly adapted from plib  January 2001
 //
 // Original version Copyright (C) 2000  the plib team
-// Local changes Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Local changes Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -27,19 +27,13 @@
 #ifndef _SG_LOWLEVEL_HXX
 #define _SG_LOWLEVEL_HXX
 
-
 #include <stdio.h>
 #include <zlib.h>
 
 #include <plib/sg.h>
 
-#ifdef _MSC_VER
-typedef __int64 int64;
-typedef __int64 uint64;
-#else
-typedef long long int64;
-typedef unsigned long long uint64;
-#endif
+#include <simgear/compiler.h>
+#include <simgear/misc/stdint.hxx>
 
 // Note that output is written in little endian form (and converted as
 // necessary for big endian machines)
@@ -54,10 +48,10 @@ void sgReadUInt ( gzFile fd, unsigned int *var ) ;
 void sgWriteUInt ( gzFile fd, const unsigned int var ) ;
 void sgReadInt ( gzFile fd, int *var ) ;
 void sgWriteInt ( gzFile fd, const int var ) ;
-void sgReadLong ( gzFile fd, long int *var ) ;
-void sgWriteLong ( gzFile fd, const long int var ) ;
-void sgReadLongLong ( gzFile fd, int64 *var ) ;
-void sgWriteLongLong ( gzFile fd, const int64 var ) ;
+void sgReadLong ( gzFile fd, int32_t *var ) ;
+void sgWriteLong ( gzFile fd, const int32_t var ) ;
+void sgReadLongLong ( gzFile fd, int64_t *var ) ;
+void sgWriteLongLong ( gzFile fd, const int64_t var ) ;
 void sgReadUShort ( gzFile fd, unsigned short *var ) ;
 void sgWriteUShort ( gzFile fd, const unsigned short var ) ;
 void sgReadShort ( gzFile fd, short *var ) ;
@@ -121,52 +115,4 @@ void sgClearWriteError();
 int sgReadError();
 int sgWriteError();
 
-inline bool sgIsLittleEndian() {
-    static const int sgEndianTest = 1;
-    return (*((char *) &sgEndianTest ) != 0);
-}
-
-inline bool sgIsBigEndian() {
-    static const int sgEndianTest = 1;
-    return (*((char *) &sgEndianTest ) == 0);
-}
-
-inline void sgEndianSwap(unsigned short *x) {
-    *x =
-        (( *x >>  8 ) & 0x00FF ) | 
-        (( *x <<  8 ) & 0xFF00 ) ;
-}
-  
-inline void sgEndianSwap(unsigned int *x) {
-    *x =
-        (( *x >> 24 ) & 0x000000FF ) | 
-        (( *x >>  8 ) & 0x0000FF00 ) | 
-        (( *x <<  8 ) & 0x00FF0000 ) | 
-        (( *x << 24 ) & 0xFF000000 ) ;
-}
-  
-inline void sgEndianSwap(uint64 *x) {
-#ifndef _MSC_VER
-    *x =
-        (( *x >> 56 ) & 0x00000000000000FFULL ) | 
-        (( *x >> 40 ) & 0x000000000000FF00ULL ) | 
-        (( *x >> 24 ) & 0x0000000000FF0000ULL ) | 
-        (( *x >>  8 ) & 0x00000000FF000000ULL ) | 
-        (( *x <<  8 ) & 0x000000FF00000000ULL ) | 
-        (( *x << 24 ) & 0x0000FF0000000000ULL ) |
-        (( *x << 40 ) & 0x00FF000000000000ULL ) |
-        (( *x << 56 ) & 0xFF00000000000000ULL ) ;
-#else
-    *x =
-        (( *x >> 56 ) & 0x00000000000000FF ) | 
-        (( *x >> 40 ) & 0x000000000000FF00 ) | 
-        (( *x >> 24 ) & 0x0000000000FF0000 ) | 
-        (( *x >>  8 ) & 0x00000000FF000000 ) | 
-        (( *x <<  8 ) & 0x000000FF00000000 ) | 
-        (( *x << 24 ) & 0x0000FF0000000000 ) |
-        (( *x << 40 ) & 0x00FF000000000000 ) |
-        (( *x << 56 ) & 0xFF00000000000000 ) ;
-#endif
-}
-
 #endif // _SG_LOWLEVEL_HXX

simgear/io/lowtest.cxx

@@ -3,16 +3,14 @@
 #include STL_IOSTREAM
 #include "lowlevel.hxx"
 
-#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
-SG_USING_STD(cout);
-SG_USING_STD(endl);
-#endif
-
 
 static const int sgEndianTest = 1;
 #define sgIsLittleEndian (*((char *) &sgEndianTest ) != 0)
 #define sgIsBigEndian    (*((char *) &sgEndianTest ) == 0)
 
+SG_USING_STD(cout);
+SG_USING_STD(endl);
+
 
 int main() {
     cout << "This machine is ";
@@ -27,22 +25,22 @@ int main() {
 
     short s = 1111;
     cout << "short s = " << s << endl;
-    sgEndianSwap((unsigned short *)&s);
+    sgEndianSwap((uint16_t *)&s);
     cout << "short s = " << s << endl;
-    sgEndianSwap((unsigned short *)&s);
+    sgEndianSwap((uint16_t *)&s);
     cout << "short s = " << s << endl;
 
     int i = 1111111;
     cout << "int i = " << i << endl;
-    sgEndianSwap((unsigned int *)&i);
+    sgEndianSwap((uint32_t *)&i);
     cout << "int i = " << i << endl;
-    sgEndianSwap((unsigned int *)&i);
+    sgEndianSwap((uint32_t *)&i);
     cout << "int i = " << i << endl;
 
     double x = 1111111111;
     cout << "double x = " << x << endl;
-    sgEndianSwap((unsigned long long *)&x);
+    sgEndianSwap((uint64_t *)&x);
     cout << "double x = " << x << endl;
-    sgEndianSwap((unsigned long long *)&x);
+    sgEndianSwap((uint64_t *)&x);
     cout << "double x = " << x << endl;
 }

simgear/io/sg_binobj.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started January 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -27,6 +27,7 @@
 #endif
 
 #include <simgear/compiler.h>
+#include <simgear/debug/logstream.hxx>
 
 #include <stdio.h>
 #include <time.h>
@@ -43,11 +44,6 @@
 SG_USING_STD( string );
 SG_USING_STD( vector );
 
-#if !defined (SG_HAVE_NATIVE_SGI_COMPILERS)
-SG_USING_STD( cout );
-SG_USING_STD( endl );
-#endif
-
 
 enum {
     SG_BOUNDING_SPHERE = 0,
@@ -93,7 +89,7 @@ public:
 	while ( size < s ) {
 	    size *= 2;
 	}
-	cout << "Creating a new buffer of size = " << size << endl;
+        SG_LOG(SG_EVENT, SG_DEBUG, "Creating a new buffer of size = " << size);
 	ptr = new char[size];
     }
 
@@ -111,7 +107,7 @@ public:
 	    while ( size < s ) {
 		size *= 2;
 	    }
-	    cout << "resizing buffer to size = " << size << endl;
+            SG_LOG(SG_EVENT, SG_DEBUG, "resizing buffer to size = " << size);
 	    ptr = new char[size];
 	}
     }
@@ -120,7 +116,7 @@ public:
 
 // calculate the center of a list of points, by taking the halfway
 // point between the min and max points.
-static Point3D calc_center( point_list& wgs84_nodes ) {
+Point3D sgCalcCenter( point_list& wgs84_nodes ) {
     Point3D p, min, max;
 
     if ( wgs84_nodes.size() ) {
@@ -244,8 +240,8 @@ static void read_object( gzFile fp,
 	if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
 	char *ptr = buf.get_ptr();
 	sgReadBytes( fp, nbytes, ptr );
-	int count = nbytes / (idx_size * sizeof(short));
-	short *sptr = (short *)ptr;
+	int count = nbytes / (idx_size * sizeof(unsigned short));
+	unsigned short *sptr = (unsigned short *)ptr;
 	int_list vs; vs.clear();
 	int_list ns; ns.clear();
 	int_list cs; cs.clear();
@@ -253,7 +249,7 @@ static void read_object( gzFile fp,
 	for ( k = 0; k < count; ++k ) {
 	    if ( sgIsBigEndian() ) {
 		for ( idx = 0; idx < idx_size; ++idx ) {
-		    sgEndianSwap( (unsigned short *)&(sptr[idx]) );
+		    sgEndianSwap( (uint16_t *)&(sptr[idx]) );
 		}
 	    }
 	    idx = 0;
@@ -325,8 +321,8 @@ bool SGBinObject::read_bin( const string& file ) {
     if ( (fp = gzopen( file.c_str(), "rb" )) == NULL ) {
 	string filegz = file + ".gz";
 	if ( (fp = gzopen( filegz.c_str(), "rb" )) == NULL ) {
-	    cout << "ERROR: opening " << file << " or " << filegz
-	         << "for reading!" << endl;
+            SG_LOG( SG_EVENT, SG_ALERT,
+               "ERROR: opening " << file << " or " << filegz << "for reading!");
 
 	    return false;
 	}
@@ -364,7 +360,7 @@ bool SGBinObject::read_bin( const string& file ) {
     local_tm = localtime( &calendar_time );
     char time_str[256];
     strftime( time_str, 256, "%a %b %d %H:%M:%S %Z %Y", local_tm);
-    cout << "File created on " << time_str << endl;
+    SG_LOG( SG_EVENT, SG_DEBUG, "File created on " << time_str);
 #endif
 
     // read number of top level objects
@@ -407,9 +403,9 @@ bool SGBinObject::read_bin( const string& file ) {
 
 		double *dptr = (double *)ptr;
 		if ( sgIsBigEndian() ) {
-		    sgEndianSwap( (uint64 *)&(dptr[0]) );
-		    sgEndianSwap( (uint64 *)&(dptr[1]) );
-		    sgEndianSwap( (uint64 *)&(dptr[2]) );
+		    sgEndianSwap( (uint64_t *)&(dptr[0]) );
+		    sgEndianSwap( (uint64_t *)&(dptr[1]) );
+		    sgEndianSwap( (uint64_t *)&(dptr[2]) );
 		}
 		gbs_center = Point3D( dptr[0], dptr[1], dptr[2] );
 		// cout << "Center = " << gbs_center << endl;
@@ -417,7 +413,7 @@ bool SGBinObject::read_bin( const string& file ) {
 		
 		float *fptr = (float *)ptr;
 		if ( sgIsBigEndian() ) {
-		    sgEndianSwap( (unsigned int *)fptr );
+		    sgEndianSwap( (uint32_t *)fptr );
 		}
 		gbs_radius = fptr[0];
 		// cout << "Bounding radius = " << gbs_radius << endl;
@@ -447,9 +443,9 @@ bool SGBinObject::read_bin( const string& file ) {
 		wgs84_nodes.reserve( count );
 		for ( k = 0; k < count; ++k ) {
 		    if ( sgIsBigEndian() ) {
-			sgEndianSwap( (unsigned int *)&(fptr[0]) );
-			sgEndianSwap( (unsigned int *)&(fptr[1]) );
-			sgEndianSwap( (unsigned int *)&(fptr[2]) );
+			sgEndianSwap( (uint32_t *)&(fptr[0]) );
+			sgEndianSwap( (uint32_t *)&(fptr[1]) );
+			sgEndianSwap( (uint32_t *)&(fptr[2]) );
 		    }
 		    wgs84_nodes.push_back( Point3D(fptr[0], fptr[1], fptr[2]) );
 		    fptr += 3;
@@ -480,10 +476,10 @@ bool SGBinObject::read_bin( const string& file ) {
 		colors.reserve(count);
 		for ( k = 0; k < count; ++k ) {
 		    if ( sgIsBigEndian() ) {
-			sgEndianSwap( (unsigned int *)&(fptr[0]) );
-			sgEndianSwap( (unsigned int *)&(fptr[1]) );
-			sgEndianSwap( (unsigned int *)&(fptr[2]) );
-			sgEndianSwap( (unsigned int *)&(fptr[3]) );
+			sgEndianSwap( (uint32_t *)&(fptr[0]) );
+			sgEndianSwap( (uint32_t *)&(fptr[1]) );
+			sgEndianSwap( (uint32_t *)&(fptr[2]) );
+			sgEndianSwap( (uint32_t *)&(fptr[3]) );
 		    }
 		    colors.push_back( Point3D( fptr[0], fptr[1], fptr[2] ) );
 		    fptr += 4;
@@ -548,8 +544,8 @@ bool SGBinObject::read_bin( const string& file ) {
 		texcoords.reserve(count);
 		for ( k = 0; k < count; ++k ) {
 		    if ( sgIsBigEndian() ) {
-			sgEndianSwap( (unsigned int *)&(fptr[0]) );
-			sgEndianSwap( (unsigned int *)&(fptr[1]) );
+			sgEndianSwap( (uint32_t *)&(fptr[0]) );
+			sgEndianSwap( (uint32_t *)&(fptr[1]) );
 		    }
 		    texcoords.push_back( Point3D( fptr[0], fptr[1], 0 ) );
 		    fptr += 2;
@@ -660,7 +656,7 @@ bool SGBinObject::write_bin( const string& base, const string& name,
     // write header magic
     sgWriteUInt( fp, SG_FILE_MAGIC_NUMBER );
     time_t calendar_time = time(NULL);
-    sgWriteLong( fp, (long int)calendar_time );
+    sgWriteLong( fp, (int32_t)calendar_time );
 
     // calculate and write number of top level objects
     string material;
@@ -1149,7 +1145,7 @@ bool SGBinObject::write_ascii( const string& base, const string& name,
 	    for ( i = start; i < end; ++i ) {
 		for ( j = 0; j < (int)tris_v[i].size(); ++j ) {
 		    group_nodes.push_back( wgs84_nodes[ tris_v[i][j] ] );
-		    bs_center = calc_center( group_nodes );
+		    bs_center = sgCalcCenter( group_nodes );
 		    bs_radius = sgCalcBoundingRadius( bs_center, group_nodes );
 		}
 	    }
@@ -1200,7 +1196,7 @@ bool SGBinObject::write_ascii( const string& base, const string& name,
 	    for ( i = start; i < end; ++i ) {
 		for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
 		    group_nodes.push_back( wgs84_nodes[ strips_v[i][j] ] );
-		    bs_center = calc_center( group_nodes );
+		    bs_center = sgCalcCenter( group_nodes );
 		    bs_radius = sgCalcBoundingRadius( bs_center, group_nodes );
 		}
 	    }

simgear/io/sg_binobj.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started January 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -221,6 +221,16 @@ public:
 };
 
 
+/**
+ * \relates SGBinObject
+ * Calculate the center of a list of points, by taking the halfway
+ * point between the min and max points.
+ * @param wgs84_nodes list of points in wgs84 coordinates
+ * @return center point
+ */
+Point3D sgCalcCenter( point_list& wgs84_nodes );
+
+
 /**
  * \relates SGBinObject
  * Calculate the bounding sphere of a set of nodes.

simgear/io/sg_file.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -29,6 +29,7 @@
 #  include <io.h>
 #endif
 
+#include <simgear/misc/stdint.hxx>
 #include <simgear/debug/logstream.hxx>
 
 #include "sg_file.hxx"
@@ -39,6 +40,7 @@ SG_USING_STD(string);
 SGFile::SGFile( const string &file) {
     set_type( sgFileType );
     file_name = file;
+    eof_flag = true;
 }
 
 
@@ -70,6 +72,7 @@ bool SGFile::open( const SGProtocolDir d ) {
 	return false;
     }
 
+    eof_flag = false;
     return true;
 }
 
@@ -77,7 +80,11 @@ bool SGFile::open( const SGProtocolDir d ) {
 // read a block of data of specified size
 int SGFile::read( char *buf, int length ) {
     // read a chunk
-    return ::read( fp, buf, length );
+    ssize_t result = ::read( fp, buf, length );
+    if ( length > 0 && result == 0 ) {
+        eof_flag = true;
+    }
+    return result;
 }
 
 
@@ -87,7 +94,10 @@ int SGFile::readline( char *buf, int length ) {
     int pos = lseek( fp, 0, SEEK_CUR );
 
     // read a chunk
-    int result = ::read( fp, buf, length );
+    ssize_t result = ::read( fp, buf, length );
+    if ( length > 0 && result == 0 ) {
+        eof_flag = true;
+    }
 
     // find the end of line and reset position
     int i;
@@ -130,5 +140,6 @@ bool SGFile::close() {
 	return false;
     }
 
+    eof_flag = true;
     return true;
 }

simgear/io/sg_file.hxx

@@ -4,7 +4,7 @@
 
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -54,6 +54,7 @@ class SGFile : public SGIOChannel {
 
     string file_name;
     int fp;
+    bool eof_flag;
 
 public:
 
@@ -89,6 +90,9 @@ public:
 
     /** @return the name of the file being manipulated. */
     inline string get_file_name() const { return file_name; }
+
+    /** @return true of eof conditions exists */
+    inline bool eof() const { return eof_flag; };
 };
 
 

simgear/io/sg_serial.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -133,7 +133,7 @@ int SGSerial::write( const char *buf, const int length ) {
     int result = port.write_port( buf, length );
 
     if ( result != length ) {
-	SG_LOG( SG_IO, SG_ALERT, "Error writing data: " << device );
+	SG_LOG( SG_IO, SG_WARN, "Error writing data: " << device );
     }
 
     return result;

simgear/io/sg_serial.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -55,7 +55,7 @@ class SGSerial : public SGIOChannel {
 
     string device;
     string baud;
-    FGSerialPort port;
+    SGSerialPort port;
 
     char save_buf[ 2 * SG_IO_MAX_MSG_SIZE ];
     int save_len;

simgear/io/sg_socket.cxx

@@ -3,7 +3,7 @@
 // Written by Curtis Olson, started November 1999.
 // Modified by Bernie Bright <bbright@bigpond.net.au>, May 2002.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -28,6 +28,8 @@
 #include <strings.h>
 #endif
 
+#include STL_IOSTREAM
+
 #include <simgear/debug/logstream.hxx>
 
 #include "sg_socket.hxx"
@@ -42,7 +44,8 @@ SGSocket::SGSocket( const string& host, const string& port_,
     client(0),
     is_tcp(false),
     is_server(false),
-    first_read(false)
+    first_read(false),
+    timeout(0)
 {
     if (!init)
     {
@@ -54,7 +57,7 @@ SGSocket::SGSocket( const string& host, const string& port_,
     {
 	is_tcp = true;
     }
-    else if ( style != (string)"udp" )
+    else if ( style != "udp" )
     {
 	SG_LOG( SG_IO, SG_ALERT,
 		"Error: SGSocket() unknown style = " << style );
@@ -218,7 +221,14 @@ SGSocket::read( char *buf, int length )
 
     if (result > 0)
     {
-	result = sock.recv( buf, length );
+       if (is_tcp && is_server)
+	{
+            result = client->recv( buf, length );
+        }
+        else
+        {
+            result = sock.recv( buf, length );
+        }
 
 	if ( result != length )
 	{
@@ -250,7 +260,7 @@ SGSocket::readline( char *buf, int length )
 	// read a chunk, keep in the save buffer until we have the
 	// requested amount read
 
-	if (is_tcp)
+       if (is_tcp && is_server)
 	{
 	    char *buf_ptr = save_buf + save_len;
 	    result = client->recv( buf_ptr, SG_IO_MAX_MSG_SIZE - save_len );
@@ -323,7 +333,7 @@ SGSocket::write( const char *buf, const int length )
 
     if ( s->send( buf, length ) < 0 )
     {
-	SG_LOG( SG_IO, SG_ALERT, "Error writing to socket: " << port );
+	SG_LOG( SG_IO, SG_WARN, "Error writing to socket: " << port );
 	error_condition = true;
     }
 
@@ -379,7 +389,7 @@ SGSocket::poll()
     netSocket* writers[1];
     writers[0] = 0;
 
-    int result = netSocket::select( readers, writers, 0 );
+    int result = netSocket::select( readers, writers, timeout );
 
     if (result > 0 && is_server && client == 0)
     {

simgear/io/sg_socket.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -64,6 +64,7 @@ private:
     bool is_tcp;
     bool is_server;
     bool first_read;
+    int timeout;
 
     static bool init;
 
@@ -156,6 +157,9 @@ public:
      */
     bool nonblock();
 
+    // set timeout (default: 0)
+    inline void set_timeout(int i) { timeout = i; }
+
     /** @return the remote host name */
     inline string get_hostname() const { return hostname; }
 

simgear/io/sg_socket_udp.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started November 1999.
 //
-// Copyright (C) 1999  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 1999  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -20,6 +20,9 @@
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
 
 #include <simgear/compiler.h>
 
@@ -162,7 +165,7 @@ int SGSocketUDP::write( const char *buf, const int length ) {
     bool error_condition = false;
 
     if ( sock.send( buf, length, 0 ) < 0 ) {
-	SG_LOG( SG_IO, SG_ALERT, "Error writing to socket: " << port );
+	SG_LOG( SG_IO, SG_WARN, "Error writing to socket: " << port );
 	error_condition = true;
 	return 0;
     }

simgear/io/sg_socket_udp.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started November 2001.
 //
-// Copyright (C) 2001  Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2001  Curtis L. Olson - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as

simgear/io/socktest.cxx

@@ -6,15 +6,14 @@
 #include "sg_socket.hxx"
 #include "lowlevel.hxx"
 
-#if !defined(SG_HAVE_NATIVE_SGI_COMPILERS)
-SG_USING_STD(cout);
-SG_USING_STD(endl);
-#endif
-
 static const int sgEndianTest = 1;
 #define sgIsLittleEndian (*((char *) &sgEndianTest ) != 0)
 #define sgIsBigEndian    (*((char *) &sgEndianTest ) == 0)
 
+SG_USING_STD(cout);
+SG_USING_STD(endl);
+
+
 int main() {
 
     if ( sgIsLittleEndian ) {

simgear/io/tcp_client.cxx

@@ -11,9 +11,6 @@
 
 #include "sg_socket.hxx"
 
-#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
-using std::cout;
-#endif
 
 class TcpClient
 {

simgear/io/tcp_server.cxx

@@ -5,10 +5,8 @@
 
 #include "sg_socket.hxx"
 
-using std::string;
-#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
-using std::cout;
-#endif
+SG_USING_STD(string);
+SG_USING_STD(cout);
 
 class TcpServer
 {

simgear/magvar/Makefile.am

@@ -12,6 +12,8 @@ noinst_PROGRAMS = testmagvar
 
 testmagvar_SOURCES = testmagvar.cxx
 
-testmagvar_LDADD = $(top_builddir)/simgear/magvar/libsgmagvar.a
+testmagvar_LDADD = \
+	$(top_builddir)/simgear/magvar/libsgmagvar.a \
+	$(base_LIBS)
 
 INCLUDES = -I$(top_srcdir)

simgear/magvar/magvar.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started July 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as

simgear/magvar/magvar.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started July 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as

simgear/math/Makefile.am

@@ -12,7 +12,8 @@ include_HEADERS = \
 	sg_memory.h \
 	sg_random.h \
 	sg_types.hxx \
-	vector.hxx
+	vector.hxx \
+	fastmath.hxx
 
 EXTRA_DIST = linintp2.h linintp2.inl sphrintp.h sphrintp.inl
 
@@ -22,6 +23,7 @@ libsgmath_a_SOURCES = \
 	polar3d.cxx \
 	sg_geodesy.cxx \
 	sg_random.c \
-	vector.cxx
+	vector.cxx \
+	fastmath.cxx
 
 INCLUDES = -I$(top_srcdir)

simgear/math/fastmath.cxx

@@ -0,0 +1,291 @@
+/*
+ * \file fastmath.cxx
+ * fast mathematics routines.
+ *
+ * Refferences:
+ *
+ * A Fast, Compact Approximation of the Exponential Function
+ * Nicol N. Schraudolph
+ * IDSIA, Lugano, Switzerland
+ * http://www.inf.ethz.ch/~schraudo/pubs/exp.pdf
+ *
+ * Base-2 exp, Laurent de Soras
+ * http://www.musicdsp.org/archive.php?classid=5#106
+ *
+ * Fast log() Function, by Laurent de Soras:
+ * http://www.flipcode.com/cgi-bin/msg.cgi?showThread=Tip-Fastlogfunction&forum=totd&id=-1
+ *
+ * Sin, Cos, Tan approximation
+ * http://www.musicdsp.org/showArchiveComment.php?ArchiveID=115
+ *
+ * fast floating point power computation:
+ * http://playstation2-linux.com/download/adam/power.c
+ */
+
+/*
+ * $Id$
+ */
+
+
+#include <simgear/constants.h>
+
+#include "fastmath.hxx"
+
+/**
+ * This function is on avarage 9 times faster than the system exp() function
+ * and has an error of about 1.5%
+ */
+static union {
+    double d;
+    struct {
+#if BYTE_ORDER == BIG_ENDIAN
+        int i, j;
+#else
+        int j, i;
+#endif
+    } n;
+} _eco;
+
+double fast_exp(double val) {
+    const double a = 1048576/M_LN2;
+    const double b_c = 1072632447; /* 1072693248 - 60801 */
+
+    _eco.n.i = (int)(a*val + b_c);
+
+    return _eco.d;
+}
+
+/*
+ * Linear approx. between 2 integer values of val. Uses 32-bit integers.
+ * Not very efficient but faster than exp()
+ */
+double fast_exp2( const double val )
+{
+    int e;
+    double ret;
+
+    if (val >= 0) {
+        e = int (val);
+        ret = val - (e - 1);
+
+#if BYTE_ORDER == BIG_ENDIAN
+        ((*((int *) &ret)) &= ~(2047 << 20)) += (e + 1023) << 20;
+#else
+        ((*(1 + (int *) &ret)) &= ~(2047 << 20)) += (e + 1023) << 20;
+#endif
+    } else {
+        e = int (val + 1023);
+        ret = val - (e - 1024);
+
+#if BYTE_ORDER == BIG_ENDIAN
+        ((*((int *) &ret)) &= ~(2047 << 20)) += e << 20;
+#else
+        ((*(1 + (int *) &ret)) &= ~(2047 << 20)) += e << 20;
+#endif
+    }
+
+    return ret;
+}
+
+
+/*
+ *
+ */
+float _fast_log2(const float val)
+{
+    float result, tmp;
+    float mp = 0.346607f;
+
+    result = *(int*)&val;
+    result *= 1.0/(1<<23);
+    result = result - 127;
+ 
+    tmp = result - floor(result);
+    tmp = (tmp - tmp*tmp) * mp;
+    return tmp + result;
+}
+
+float _fast_pow2(const float val)
+{
+    float result;
+
+    float mp = 0.33971f;
+    float tmp = val - floor(val);
+    tmp = (tmp - tmp*tmp) * mp;
+
+    result = val + 127 - tmp; 
+    result *= (1<<23);
+    *(int*)&result = (int)result;
+    return result;
+}
+
+
+
+/**
+ * While we're on the subject, someone might have use for these as well?
+ * Float Shift Left and Float Shift Right. Do what you want with this.
+ */
+void fast_BSL(float &x, register unsigned long shiftAmount) {
+
+	*(unsigned long*)&x+=shiftAmount<<23;
+
+}
+
+void fast_BSR(float &x, register unsigned long shiftAmount) {
+
+	*(unsigned long*)&x-=shiftAmount<<23;
+
+}
+
+
+/*
+ * fastpow(f,n) gives a rather *rough* estimate of a float number f to the
+ * power of an integer number n (y=f^n). It is fast but result can be quite a
+ * bit off, since we directly mess with the floating point exponent.
+ * 
+ * Use it only for getting rough estimates of the values and where precision 
+ * is not that important.
+ */
+float fast_pow(const float f, const int n)
+{
+    long *lp,l;
+    lp=(long*)(&f);
+    l=*lp;l-=0x3F800000l;l<<=(n-1);l+=0x3F800000l;
+    *lp=l;
+    return f;
+}
+
+float fast_root(const float f, const int n)
+{
+    long *lp,l;
+    lp=(long*)(&f);
+    l=*lp;l-=0x3F800000l;l>>=(n-1);l+=0x3F800000l;
+    *lp=l;
+    return f;
+}
+
+
+/*
+ * Code for approximation of cos, sin, tan and inv sin, etc.
+ * Surprisingly accurate and very usable.
+ *
+ * Domain:
+ * Sin/Cos    [0, pi/2]
+ * Tan        [0,pi/4]
+ * InvSin/Cos [0, 1]
+ * InvTan     [-1, 1]
+ */
+
+float fast_sin(const float val)
+{
+    float fASqr = val*val;
+    float fResult = -2.39e-08f;
+    fResult *= fASqr;
+    fResult += 2.7526e-06f;
+    fResult *= fASqr;
+    fResult -= 1.98409e-04f;
+    fResult *= fASqr;
+    fResult += 8.3333315e-03f;
+    fResult *= fASqr;
+    fResult -= 1.666666664e-01f;
+    fResult *= fASqr;
+    fResult += 1.0f;
+    fResult *= val;
+
+    return fResult;
+}
+
+float fast_cos(const float val)
+{
+    float fASqr = val*val;
+    float fResult = -2.605e-07f;
+    fResult *= fASqr;
+    fResult += 2.47609e-05f;
+    fResult *= fASqr;
+    fResult -= 1.3888397e-03f;
+    fResult *= fASqr;
+    fResult += 4.16666418e-02f;
+    fResult *= fASqr;
+    fResult -= 4.999999963e-01f;
+    fResult *= fASqr;
+    fResult += 1.0f;
+
+    return fResult;  
+}
+
+float fast_tan(const float val)
+{
+    float fASqr = val*val;
+    float fResult = 9.5168091e-03f;
+    fResult *= fASqr;
+    fResult += 2.900525e-03f;
+    fResult *= fASqr;
+    fResult += 2.45650893e-02f;
+    fResult *= fASqr;
+    fResult += 5.33740603e-02f;
+    fResult *= fASqr;
+    fResult += 1.333923995e-01f;
+    fResult *= fASqr;
+    fResult += 3.333314036e-01f;
+    fResult *= fASqr;
+    fResult += 1.0f;
+    fResult *= val;
+
+    return fResult;
+
+}
+
+float fast_asin(float val)
+{
+    float fRoot = sqrt(1.0f-val);
+    float fResult = -0.0187293f;
+    fResult *= val;
+    fResult += 0.0742610f;
+    fResult *= val;
+    fResult -= 0.2121144f;
+    fResult *= val;
+    fResult += 1.5707288f;
+    fResult = SGD_PI_2 - fRoot*fResult;
+
+    return fResult;
+}
+
+float fast_acos(float val)
+{
+    float fRoot = sqrt(1.0f-val);
+    float fResult = -0.0187293f;
+    fResult *= val;
+    fResult += 0.0742610f;
+    fResult *= val;
+    fResult -= 0.2121144f;
+    fResult *= val;
+    fResult += 1.5707288f;
+    fResult *= fRoot;
+
+    return fResult;
+}
+
+float fast_atan(float val)
+{
+    float fVSqr = val*val;
+    float fResult = 0.0028662257f;
+    fResult *= fVSqr;
+    fResult -= 0.0161657367f;
+    fResult *= fVSqr;
+    fResult += 0.0429096138f;
+    fResult *= fVSqr;
+    fResult -= 0.0752896400f;
+    fResult *= fVSqr;
+    fResult += 0.1065626393f;
+    fResult *= fVSqr;
+    fResult -= 0.1420889944f;
+    fResult *= fVSqr;
+    fResult += 0.1999355085f;
+    fResult *= fVSqr;
+    fResult -= 0.3333314528f;
+    fResult *= fVSqr;
+    fResult += 1.0f;
+    fResult *= val;
+
+    return fResult;
+}

simgear/math/fastmath.hxx

@@ -0,0 +1,117 @@
+/*
+ * \file fastmath.hxx
+ * fast mathematics routines.
+ *
+ * Refferences:
+ *
+ * A Fast, Compact Approximation of the Exponential Function
+ * Nicol N. Schraudolph
+ * IDSIA, Lugano, Switzerland
+ * http://www.inf.ethz.ch/~schraudo/pubs/exp.pdf
+ *
+ * Fast log() Function, by Laurent de Soras:
+ * http://www.flipcode.com/cgi-bin/msg.cgi?showThread=Tip-Fastlogfunction&forum=totd&id=-1
+ *
+ */
+
+/*
+ * $Id$
+ */
+
+#ifndef _SG_FMATH_HXX
+#define _SG_FMATH_HXX 1
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#ifdef _MSC_VER
+#define  _USE_MATH_DEFINES
+#endif
+#include <math.h>
+
+
+double fast_exp(double val);
+double fast_exp2(const double val);
+
+float fast_pow(const float val1, const float val2);
+float fast_log2(const float cal);
+float fast_root(const float f, const int n);
+
+float _fast_pow2(const float cal);
+float _fast_log2(const float val);
+
+float fast_sin(const float val);
+float fast_cos(const float val);
+float fast_tan(const float val);
+float fast_asin(const float val);
+float fast_acos(const float val);
+float fast_atan(const float val);
+
+void fast_BSL(float &x, register unsigned long shiftAmount);
+void fast_BSR(float &x, register unsigned long shiftAmount);
+
+
+inline float fast_log2 (float val)
+{
+    int * const  exp_ptr = reinterpret_cast <int *> (&val);
+    int          x = *exp_ptr;
+    const int    log_2 = ((x >> 23) & 255) - 128;
+    x &= ~(255 << 23);
+    x += 127 << 23;
+    *exp_ptr = x;
+
+    val = ((-1.0f/3) * val + 2) * val - 2.0f/3;   // (1)
+
+    return (val + log_2);
+}
+
+
+/**
+ * This function is about 3 times faster than the system log() function
+ * and has an error of about 0.01%
+ */
+inline float fast_log (const float &val)
+{
+   return (fast_log2 (val) * 0.69314718f);
+}
+
+inline float fast_log10 (const float &val)
+{
+   return (fast_log2(val) / 3.321928095f);
+}
+
+
+/**
+ * This function is about twice as fast as the system pow(x,y) function
+ */
+inline float fast_pow(const float val1, const float val2)
+{
+   return _fast_pow2(val2 * _fast_log2(val1));
+}
+
+
+/*
+ * Haven't seen this elsewhere, probably because it is too obvious?
+ * Anyway, these functions are intended for 32-bit floating point numbers
+ * only and should work a bit faster than the regular ones.
+ */
+inline float fast_abs(float f)
+{
+    int i=((*(int*)&f)&0x7fffffff);
+    return (*(float*)&i);
+}
+
+inline float fast_neg(float f)
+{
+    int i=((*(int*)&f)^0x80000000);
+    return (*(float*)&i);
+}
+
+inline int fast_sgn(float f)
+{
+    return 1+(((*(int*)&f)>>31)<<1);
+}
+
+#endif // !_SG_FMATH_HXX
+

simgear/math/interpolater.cxx

@@ -4,7 +4,7 @@
 //
 // Written by Curtis Olson, started April 1998.
 //
-// Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
+// Copyright (C) 1998  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -30,7 +30,6 @@
 
 #include STL_STRING
 
-// depricated - #include <simgear/sg_zlib.h>
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/sgstream.hxx>
 

simgear/math/interpolater.hxx

@@ -6,7 +6,7 @@
 
 // Written by Curtis Olson, started April 1998.
 //
-// Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
+// Copyright (C) 1998  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public

simgear/math/leastsqs.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started September 1997.
 //
-// Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+// Copyright (C) 1997  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public

simgear/math/leastsqs.hxx

@@ -5,7 +5,7 @@
 
 // Written by Curtis Olson, started September 1997.
 //
-// Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+// Copyright (C) 1997  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public

simgear/math/linintp2.inl

@@ -48,7 +48,7 @@ mgcLinInterp2D<T>::mgcLinInterp2D (int _numPoints, double* x, double* y,
         return;
     }
 
-    cout << "[ 20%] allocating memory                                              \r";
+    // cout << "[ 20%] allocating memory                                              \r";
 
     point = new double*[numPoints];
     tmppoint = new double*[numPoints+3];
@@ -66,7 +66,7 @@ mgcLinInterp2D<T>::mgcLinInterp2D (int _numPoints, double* x, double* y,
 	f[i] = _f[i];
     }
 
-    cout << "[ 30%] creating delaunay diagram                                      \r";
+    // cout << "[ 30%] creating delaunay diagram                                      \r";
 
     Delaunay2D();
 }
@@ -279,7 +279,7 @@ int mgcLinInterp2D<T>::Delaunay2D ()
     nts = 1;  // number of triangles
     i4 = 1;
 
-    cout << "[ 40%] create triangulation                                     \r";
+    // cout << "[ 40%] create triangulation                                     \r";
 
     // compute triangulation
     for (i0 = 0; i0 < numPoints; i0++)
@@ -372,7 +372,7 @@ Corner3:;
     }
 
     // count the number of triangles
-    cout << "[ 50%] count the number of triangles                                  \r";
+    // cout << "[ 50%] count the number of triangles                                  \r";
 
     numTriangles = 0;
     i0 = -1;
@@ -394,7 +394,7 @@ Corner3:;
     }
 
     // create the triangles
-    cout << "[ 60%] create the triangles                                         \r";
+    // cout << "[ 60%] create the triangles                                         \r";
 
     triangle = new Triangle[numTriangles];
 
@@ -428,7 +428,7 @@ Corner3:;
     }
 
     // build edge table
-    cout << "[ 70%] build the edge table                                       \r";
+    // cout << "[ 70%] build the edge table                                       \r";
 
     numEdges = 0;
     edge = new Edge[3*numTriangles];
@@ -436,8 +436,8 @@ Corner3:;
     int j, j0, j1;
     for (i = 0; i < numTriangles; i++)
     {
-	if ( (i%500) == 0)
-	    cout << "[ 7" << 10*i/numTriangles << "%] build the edge table                                       \r";
+	// if ( (i%500) == 0)
+	    // cout << "[ 7" << 10*i/numTriangles << "%] build the edge table                                       \r";
 
         Triangle& t = triangle[i];
 
@@ -470,7 +470,7 @@ Corner3:;
     }
 
     // establish links between adjacent triangles
-    cout << "[ 80%] establishing links between adjacent triangles                                       \r";
+    // cout << "[ 80%] establishing links between adjacent triangles                                       \r";
 
     for (i = 0; i < numEdges; i++)
     {
@@ -494,7 +494,7 @@ ExitDelaunay:;
     delete[] ccr[0];
     delete[] ccr;
 
-    cout << "[ 90%] finsishes delauney triangulation                            \r";
+    // cout << "[ 90%] finsishes delauney triangulation                            \r";
 
     return result;
 }

simgear/math/localconsts.hxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started September 2000.
 //
-// Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
+// Copyright (C) 2000  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public

simgear/math/point3d.hxx

@@ -8,7 +8,7 @@
  * Adapted from algebra3 by Jean-Francois Doue, started October 1998.
  */
 
-// Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
+// Copyright (C) 1998  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -61,10 +61,8 @@
 SG_USING_NAMESPACE(std);
 #endif
 
-#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
 SG_USING_STD(ostream);
 SG_USING_STD(istream);
-#endif
 
 
 const double fgPoint3_Epsilon = 0.0000001;
@@ -187,7 +185,11 @@ operator<< ( ostream& out, const Point3D& p )
 
 // CONSTRUCTORS
 
-inline Point3D::Point3D() {}
+inline Point3D::Point3D()
+{
+   n[PX] = n[PY] = 0.0;
+   n[PZ] = -9999.0;
+}
 
 inline Point3D::Point3D(const double x, const double y, const double z)
 {

simgear/math/polar3d.cxx

@@ -2,7 +2,7 @@
 //
 // Written by Curtis Olson, started June 1997.
 //
-// Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+// Copyright (C) 1997  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Library General Public
@@ -30,10 +30,14 @@
 #include "polar3d.hxx"
 
 
-// Find the Altitude above the Ellipsoid (WGS84) given the Earth
-// Centered Cartesian coordinate vector Distances are specified in
-// meters.
-double fgGeodAltFromCart(const Point3D& cp)
+/**
+ * Find the Altitude above the Ellipsoid (WGS84) given the Earth
+ * Centered Cartesian coordinate vector Distances are specified in
+ * meters.
+ * @param cp point specified in cartesian coordinates
+ * @return altitude above the (wgs84) earth in meters
+ */
+double sgGeodAltFromCart(const Point3D& cp)
 {
     double t_lat, x_alpha, mu_alpha;
     double lat_geoc, radius;
@@ -59,4 +63,224 @@ double fgGeodAltFromCart(const Point3D& cp)
     return(result);
 }
 
+/**
+ * Convert a polar coordinate to a cartesian coordinate.  Lon and Lat
+ * must be specified in radians.  The SG convention is for distances
+ * to be specified in meters
+ * @param p point specified in polar coordinates
+ * @return the same point in cartesian coordinates
+ */
+Point3D sgPolarToCart3d(const Point3D& p) {
+    double tmp = cos( p.lat() ) * p.radius();
 
+    return Point3D( cos( p.lon() ) * tmp,
+                    sin( p.lon() ) * tmp,
+                    sin( p.lat() ) * p.radius() );
+}
+
+/**
+ * Convert a cartesian coordinate to polar coordinates (lon/lat
+ * specified in radians.  Distances are specified in meters.
+ * @param cp point specified in cartesian coordinates
+ * @return the same point in polar coordinates
+ */
+Point3D sgCartToPolar3d(const Point3D& cp) {
+    return Point3D( atan2( cp.y(), cp.x() ),
+                    SGD_PI_2 -
+                    atan2( sqrt(cp.x()*cp.x() + cp.y()*cp.y()), cp.z() ),
+                    sqrt(cp.x()*cp.x() + cp.y()*cp.y() + cp.z()*cp.z()) );
+}
+
+/**
+ * Calculate new lon/lat given starting lon/lat, and offset radial, and
+ * distance.  NOTE: starting point is specifed in radians, distance is
+ * specified in meters (and converted internally to radians)
+ * ... assumes a spherical world.
+ * @param orig specified in polar coordinates
+ * @param course offset radial
+ * @param dist offset distance
+ * @return destination point in polar coordinates
+ */
+Point3D calc_gc_lon_lat( const Point3D& orig, double course,
+                                double dist ) {
+    Point3D result;
+
+    // lat=asin(sin(lat1)*cos(d)+cos(lat1)*sin(d)*cos(tc))
+    // IF (cos(lat)=0)
+    //   lon=lon1      // endpoint a pole
+    // ELSE
+    //   lon=mod(lon1-asin(sin(tc)*sin(d)/cos(lat))+pi,2*pi)-pi
+    // ENDIF
+
+    // printf("calc_lon_lat()  offset.theta = %.2f offset.dist = %.2f\n",
+    //        offset.theta, offset.dist);
+
+    dist *= SG_METER_TO_NM * SG_NM_TO_RAD;
+
+    result.sety( asin( sin(orig.y()) * cos(dist) +
+                       cos(orig.y()) * sin(dist) * cos(course) ) );
+
+    if ( cos(result.y()) < SG_EPSILON ) {
+        result.setx( orig.x() );      // endpoint a pole
+    } else {
+        result.setx(
+            fmod(orig.x() - asin( sin(course) * sin(dist) /
+                                  cos(result.y()) )
+                 + SGD_PI, SGD_2PI) - SGD_PI );
+    }
+
+    return result;
+}
+
+/**
+ * Calculate course/dist given two spherical points.
+ * @param start starting point
+ * @param dest ending point
+ * @param course resulting course
+ * @param dist resulting distance
+ */
+void calc_gc_course_dist( const Point3D& start, const Point3D& dest,
+                                 double *course, double *dist )
+{
+    if ( start == dest) {
+            *dist=0;
+            *course=0;
+            return;
+    }
+    // d = 2*asin(sqrt((sin((lat1-lat2)/2))^2 +
+    //            cos(lat1)*cos(lat2)*(sin((lon1-lon2)/2))^2))
+    double cos_start_y = cos( start.y() );
+    double tmp1 = sin( (start.y() - dest.y()) * 0.5 );
+    double tmp2 = sin( (start.x() - dest.x()) * 0.5 );
+    double d = 2.0 * asin( sqrt( tmp1 * tmp1 +
+                                 cos_start_y * cos(dest.y()) * tmp2 * tmp2));
+
+    *dist = d * SG_RAD_TO_NM * SG_NM_TO_METER;
+
+#if 1
+    double c1 = atan2(
+                cos(dest.y())*sin(dest.x()-start.x()),
+                cos(start.y())*sin(dest.y())-
+                sin(start.y())*cos(dest.y())*cos(dest.x()-start.x()));
+    if (c1 >= 0)
+      *course = SGD_2PI-c1;
+    else
+      *course = -c1;
+#else
+    // We obtain the initial course, tc1, (at point 1) from point 1 to
+    // point 2 by the following. The formula fails if the initial
+    // point is a pole. We can special case this with:
+    //
+    // IF (cos(lat1) < EPS)   // EPS a small number ~ machine precision
+    //   IF (lat1 > 0)
+    //     tc1= pi        //  starting from N pole
+    //   ELSE
+    //     tc1= 0         //  starting from S pole
+    //   ENDIF
+    // ENDIF
+    //
+    // For starting points other than the poles:
+    //
+    // IF sin(lon2-lon1)<0
+    //   tc1=acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))
+    // ELSE
+    //   tc1=2*pi-acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))
+    // ENDIF
+
+    // if ( cos(start.y()) < SG_EPSILON ) {
+    // doing it this way saves a transcendental call
+    double sin_start_y = sin( start.y() );
+    if ( fabs(1.0-sin_start_y) < SG_EPSILON ) {
+        // EPS a small number ~ machine precision
+        if ( start.y() > 0 ) {
+            *course = SGD_PI;   // starting from N pole
+        } else {
+            *course = 0;        // starting from S pole
+        }
+    } else {
+        // For starting points other than the poles:
+        // double tmp3 = sin(d)*cos_start_y);
+        // double tmp4 = sin(dest.y())-sin(start.y())*cos(d);
+        // double tmp5 = acos(tmp4/tmp3);
+
+        // Doing this way gaurentees that the temps are
+        // not stored into memory
+        double tmp5 = acos( (sin(dest.y()) - sin_start_y * cos(d)) /
+                            (sin(d) * cos_start_y) );
+
+        // if ( sin( dest.x() - start.x() ) < 0 ) {
+        // the sin of the negative angle is just the opposite sign
+        // of the sin of the angle  so tmp2 will have the opposite
+        // sign of sin( dest.x() - start.x() )
+        if ( tmp2 >= 0 ) {
+            *course = tmp5;
+        } else {
+            *course = SGD_2PI - tmp5;
+        }
+    }
+#endif
+}
+
+
+#if 0
+/**
+ * Calculate course/dist given two spherical points.
+ * @param start starting point
+ * @param dest ending point
+ * @param course resulting course
+ * @param dist resulting distance
+ */
+void calc_gc_course_dist( const Point3D& start, const Point3D& dest,
+                                 double *course, double *dist ) {
+    // d = 2*asin(sqrt((sin((lat1-lat2)/2))^2 +
+    //            cos(lat1)*cos(lat2)*(sin((lon1-lon2)/2))^2))
+    double tmp1 = sin( (start.y() - dest.y()) / 2 );
+    double tmp2 = sin( (start.x() - dest.x()) / 2 );
+    double d = 2.0 * asin( sqrt( tmp1 * tmp1 +
+                                 cos(start.y()) * cos(dest.y()) * tmp2 * tmp2));
+    // We obtain the initial course, tc1, (at point 1) from point 1 to
+    // point 2 by the following. The formula fails if the initial
+    // point is a pole. We can special case this with:
+    //
+    // IF (cos(lat1) < EPS)   // EPS a small number ~ machine precision
+    //   IF (lat1 > 0)
+    //     tc1= pi        //  starting from N pole
+    //   ELSE
+    //     tc1= 0         //  starting from S pole
+    //   ENDIF
+    // ENDIF
+    //
+    // For starting points other than the poles:
+    //
+    // IF sin(lon2-lon1)<0
+    //   tc1=acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))
+    // ELSE
+    //   tc1=2*pi-acos((sin(lat2)-sin(lat1)*cos(d))/(sin(d)*cos(lat1)))
+    // ENDIF
+
+    double tc1;
+
+    if ( cos(start.y()) < SG_EPSILON ) {
+        // EPS a small number ~ machine precision
+        if ( start.y() > 0 ) {
+            tc1 = SGD_PI;        // starting from N pole
+        } else {
+            tc1 = 0;            // starting from S pole
+        }
+    }
+
+    // For starting points other than the poles:
+
+    double tmp3 = sin(d)*cos(start.y());
+    double tmp4 = sin(dest.y())-sin(start.y())*cos(d);
+    double tmp5 = acos(tmp4/tmp3);
+    if ( sin( dest.x() - start.x() ) < 0 ) {
+         tc1 = tmp5;
+    } else {
+         tc1 = SGD_2PI - tmp5;
+    }
+
+    *course = tc1;
+    *dist = d * SG_RAD_TO_NM * SG_NM_TO_METER;
+}
+#endif // 0