* PNG support from Joerg Dietrich <dietrich_joerg@t-online.de>

* Cleanup of tabulation in R_LoadImage

README

@@ -6,7 +6,7 @@
                    |            |_|                        |
                    |                                       |
                    `---------- http://ioquake3.org --------'
-                                             
+
 The intent of this project is to provide a baseline Quake 3 which may be used
 for further development. Some of the major features currently implemented are:
 
@@ -27,6 +27,7 @@ for further development. Some of the major features currently implemented are:
   * HTTP/FTP download redirection (using cURL)
   * Multiuser support on Windows systems (user specific game data
     is stored in "%APPDATA%\Quake3")
+  * PNG support
   * Many, many bug fixes
 
 The map editor and associated compiling tools are not included. We suggest you
@@ -62,7 +63,7 @@ For Mac OS X, building a Universal Binary
      XCode 2.2 and newer.
   2. Change to the directory containing this README file.
   3. Run './make-macosx-ub.sh'
-  4. Copy the resulting ioquake3.app in /build/release-darwin-ub to your 
+  4. Copy the resulting ioquake3.app in /build/release-darwin-ub to your
      /Applications/ioquake3 folder.
 
 Installation, for *nix
@@ -154,7 +155,7 @@ New cvars
   cl_guidServerUniq                 - makes cl_guid unique for each server
   cl_cURLLib                        - filename of cURL library to load
   sv_dlURL                          - the base of the HTTP or FTP site that
-                                      holds custom pk3 files for your server 
+                                      holds custom pk3 files for your server
 
 New commands
   video [filename]        - start video capture (use with demo command)
@@ -215,7 +216,7 @@ cl_guid Support
 
   If cl_guidServerUniq is non-zero (the default), then this value is also
   pseudo-unique for each server a client connects to (based on IP:PORT of
-  the server). 
+  the server).
 
   The purpose of cl_guid is to add an identifier for each player on
   a server.  This value can be reset by the client at any time so it's not
@@ -223,7 +224,7 @@ cl_guid Support
   your mod's game code:
     1) improve logging to allow statistical tools to index players by more
        than just name
-    2) granting some weak admin rights to players without requiring passwords 
+    2) granting some weak admin rights to players without requiring passwords
 
 Using HTTP/FTP Download Support (Server)
   You can enable redirected downloads on your server even if it's not
@@ -248,7 +249,7 @@ Using HTTP/FTP Download Support (Server)
   Server operators who are concerned about potential "leeching" from their
   HTTP servers from other ioquake3 servers can make use of the HTTP_REFERER
   that ioquake3 sets which is "ioQ3://{SERVER_IP}:{SERVER_PORT}".  For,
-  example, Apache's mod_rewrite can restrict access based on HTTP_REFERER. 
+  example, Apache's mod_rewrite can restrict access based on HTTP_REFERER.
 
 Using HTTP/FTP Download Support (Client)
   Simply setting cl_allowDownload to 1 will enable HTTP/FTP downloads
@@ -261,7 +262,7 @@ Using HTTP/FTP Download Support (Client)
 
   When ioquake3 is built with USE_CURL_DLOPEN=1 (default on some platforms),
   it will use the value of the cvar cl_cURLLib as the filename of the cURL
-  library to dynamically load. 
+  library to dynamically load.
 
 Multiuser Support on Windows systems
   On Windows, all user specific files such as autogenerated configuration,
@@ -271,19 +272,19 @@ Multiuser Support on Windows systems
   On NT-based such as Windows XP, this is usually a directory named:
     "C:\Documents and Settings\%USERNAME%\Application Data\Quake3\"
 
-  Windows 95, Windows 98, and Windows ME will use a directory like: 
+  Windows 95, Windows 98, and Windows ME will use a directory like:
     "C:\Windows\Application Data\Quake3"
   in single-user mode, or:
     "C:\Windows\Profiles\%USERNAME%\Application Data\Quake3"
-  if multiple logins have been enabled. 
+  if multiple logins have been enabled.
 
   In order to access this directory more easily, the installer may create a
   Shortcut which has its target set to:
     "%APPDATA%\Quake3\"
   This Shortcut would work for all users on the system regardless of the
-  locale settings.  Unfortunately, this environment variable is only 
+  locale settings.  Unfortunately, this environment variable is only
   present on Windows NT based systems.
-  
+
   You can revert to the old single-user behaviour by setting the fs_homepath
   cvar to the directory where ioquake3 is installed.  For example:
     ioquake3.exe +set fs_homepath "c:\ioquake3"
@@ -294,7 +295,7 @@ SDL Keyboard Differences
   keyboard behaviour than the original Quake3 clients.
 
     * "Caps Lock" and "Num Lock" can not be used as normal binds since they
-      do not send a KEYUP event until the key is pressed again. 
+      do not send a KEYUP event until the key is pressed again.
 
     * SDL > 1.2.9 does not support disabling "Dead Key" recognition.
       In order to send "Dead Key" characters (e.g. ~, ', `, and ^), you
@@ -311,6 +312,12 @@ SDL Keyboard Differences
   annoying to use on many non-US keyboards.  In response, an additional
   toggleConsole bind has been added on the key combination Shift-Esc.
 
+PNG support
+  ioquake3 supports the use of PNG (Portable Network Graphic) images as
+  textures. It should be noted that the use of such images in a maps will
+  result in missing placeholder textures where the map is used with the id
+  Quake 3 client or earlier versions of ioquake3.
+
 ------------------------------------------------------------- Contributing -----
 
 Please send all patches to bugzilla (https://bugzilla.icculus.org), or join the