Update to ZDoom r813, including:

- Added copyright/license headers to a few files.
- Fixed: ACS SetMugShotState needs to check the StatusBar pointer for the
  proper object type.
- Move SBarInfo loading code in d_main.cpp into a static method of DSBarInfo.
- Removed dobject.err from the repository. It only contained a list of compiler
  errors for some very old version of dobject.cpp.
- Fixed: A_JumpIfCloser was missing a z-check.
- Added Blzut3's SBARINFO update #13:
- Split sbarinfo.cpp into two files sbarinfo_display.cpp and sbarinfo_parser.cpp
- Rewrote the mug shot system for SBarInfo to allow for scripting and custom
  states for different means of death.
- SBarInfo now loads all SBarInfo lumps instead of just the last one.  Clashing
  status bar definitions will now be cleared before the bar is read.
- Fixed: When using transparency with bars the new drawing method (bg over fg)
  didn't work.  In the case that the border value is set to 0 it will revert to
  the old method (fg over bg).
- Fixed: drawbar lost any high res information it was given.
- Added: ACS command SetMugShotState(str state) which sets the mug shot state
  for the activating player.
- Added: keepoffsets flag to drawbar.  When set the offsets in the fg image will
  also be applied when displaying the bar.

- Fixed the TArray serializer declaration.
  (Thank you for your warnings, GCC! ;-)
- Changed root sector marking so that it can happen incrementally.
- Fixed: The TArray serializer needs to be declared as a friend of TArray
  in order to be able to access its fields.
- Since there are no backwards compatibility issues due to savegame version
  bumping I closed all gaps in the level flag set.
- Bumped min. Savegame version and Netgame version for 3dMidtex related
  changes.
- Changed Jump and Crouch DMFlags into 3-way switches:
  0: map default, 1: off, 2: on. Since I needed new bits the rest of
  the DMFlag bit values had to be changed as a result.
- fixed: PTR_SlideTraverse didn't check ML_BLOCKMONSTERS for sliding
  actors without MF3_NOBLOCKMONST.
- Added MAPINFO commands 'checkswitchrange' and 'nocheckswitchrange'
  that can enable or disable switch range checking globally per map.
- Changed ML_3DMIDTEX to force ML_CHECKSWITCHRANGE.
- Added a ML_CHECKSWITCHRANGE flag which allows checking whether the 
  player can actually reach the switch he wants to use.
- Made DActiveButton::EWhere global so that I can use it outside thr
  DActiveButton class.
- Changed P_LineOpening to pass its result in a struct instead of global
  variables.
- Added Eternity's 3DMIDTEX feature (no Eternity code used though.)
  It should be feature complete with the exception of the ML_BLOCKMONSTERS
  flag handling. That particular part of Eternity's implementation is
  sub-optimal because it hijacks an existing flag and doesn't seem to make
  much sense to me. Maybe I'll implement it as a separate flag later.


git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@62 b0f79afe-0144-0410-b225-9a4edf0717df

src/files.cpp

@@ -1,7 +1,50 @@
+/*
+** files.cpp
+** Implements classes for reading from files or memory blocks
+**
+**---------------------------------------------------------------------------
+** Copyright 1998-2008 Randy Heit
+** Copyright 2005-2008 Christoph Oelckers
+** All rights reserved.
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+**
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**---------------------------------------------------------------------------
+**
+*/
+
 #include "files.h"
 #include "i_system.h"
 #include "templates.h"
 
+//==========================================================================
+//
+// FileReader
+//
+// reads data from an uncompressed file or part of it
+//
+//==========================================================================
+
 FileReader::FileReader ()
 : File(NULL), Length(0), CloseOnDestruct(false)
 {
@@ -99,7 +142,14 @@ long FileReader::CalcFileLen() const
 	return endpos;
 }
 
-// Now for the zlib wrapper -------------------------------------------------
+//==========================================================================
+//
+// FileReaderZ
+//
+// The zlib wrapper
+// reads data from a ZLib compressed stream
+//
+//==========================================================================
 
 FileReaderZ::FileReaderZ (FileReader &file, bool zip)
 : File(file), SawEOF(false)
@@ -166,6 +216,14 @@ void FileReaderZ::FillBuffer ()
 	Stream.avail_in = numread;
 }
 
+//==========================================================================
+//
+// MemoryReader
+//
+// reads data from a block of memory
+//
+//==========================================================================
+
 MemoryReader::MemoryReader (const char *buffer, long length)
 {
 	bufptr=buffer;