trunk: Implemented file loading of JPEG, TGA, TIFF and a few others, by using SDL_Image builtin loader. Added visible 'hourglass' cursor during 24bit color reduction.

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1085 416bcca6-2ee7-4201-b75f-2eb2f807beb1

doc/COMPILING.txt

@@ -100,15 +100,35 @@ Libpng
   make install (long)
   Files created in /usr/local/include and /usr/local/lib ....
   
+libjpeg (optional - improves SDL_image with JPEG reading)
+  http://www.mirrorservice.org/sites/download.sourceforge.net/pub/sourceforge/l/project/li/libjpeg/libjpeg/
+  jpegsr6.zip
+  Uncompress in temporary directory
+  ./configure --enable-shared
+  make
+  (make install doesn't work. Copy jpeglib.h, jmorecfg.h, jconfig.h in include, and libjpeg.a in lib)
+  
+libtiff (optional - improves SDL_image with TIFF reading)
+  ftp://ftp.sgi.com/graphics/tiff/
+  tiff-v3.4-tar.gz
+  Uncompress in temporary directory
+  ./configure i686-pc-mingw32
+  make
+  Don't use 'make install', copy tiff.h libtiff.a manually instead.
+  
 SDL_image:
   Requires: Libpng
+  Requires optionally: libtiff
+  Requires optionally: libjpeg
   http://www.mirrorservice.org/sites/download.sourceforge.net/pub/sourceforge/l/li/libsdl/
-  SDL_image-1.2.6.zip
+  SDL_image-1.2.8.zip
   Uncompress in temporary directory
   ./configure
-  Check that png worked
+  Check in the messages that png worked
+  Optionally check if jpeg worked too
+  Optionally check if tiff worked too
   make
-  make install
+  make install prefix=/usr/mingw
   
 FreeType:
   http://www.mirrorservice.org/sites/download.sourceforge.net/pub/sourceforge/m/mi/mingw-cross/

doc/README-SDL_image.txt

@@ -1,11 +1,19 @@
-The following file:
+The following file
 
 	SDL_image.dll
 
-is the runtime environment for the library SDL_image 1.2.70 by Sam Lantiga and Mattias Engdegård.
+is the runtime environment for the library SDL_image 1.2.8 by Sam Lantiga and Mattias Engdegård.
 
 This library is distributed under the terms of the GNU LGPL license:
 http://www.gnu.org/copyleft/lesser.html
 
 The source is available from the libraries page at the SDL website:
 http://www.libsdl.org/
+
+=========================
+
+Compiled by yrizoud on 21/10/2009 with static builds of :
+	libjpeg (JPEG library http://www.ijg.org/ release 6b of 27-Mar-1998 : jpegsr6.zip)
+	libtiff (TIFF library ftp://ftp.sgi.com/graphics/tiff/ : tiff-v3.4-tar.gz)
+And dynamic version of :
+	libpng (http://www.libpng.org/pub/png/libpng.html) --> libpng13.dll requirement