SDL graphics drawing primitives and other support functions

The SDL_gfx library evolved out of the SDL_gfxPrimitives code which provided
basic drawing routines such as lines, circles or polygons and SDL_rotozoom
which implemented a interpolating rotozoomer for SDL surfaces.

The current components of the SDL_gfx library are:
 - Graphic Primitives (SDL_gfxPrimitves.h)
 - Rotozoomer (SDL_rotozoom.h)
 - Framerate control (SDL_framerate.h)
 - MMX image filters (SDL_imageFilter.h)
 - Custom Blit functions (SDL_gfxBlitFunc.h)

The library is backwards compatible to the above mentioned code. It's written
in plain C and can be used in C++ code.

Installation:

Copy SDK/#? ALL SDK:
CD SDK:local/newlib/lib
MakeLink libSDL_gfx.so libSDL_gfx.so.23 SOFT

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[unknown]                   44      44 100.0% -lh0- 02f0 Dec 22  2009 SDL_gfx-2.0.24/AUTHORS
[unknown]                 5389   12577  42.8% -lh5- 6d2b Jul 22 18:33 SDL_gfx-2.0.24/ChangeLog
[unknown]                   42      42 100.0% -lh0- e461 Jan 29  2012 SDL_gfx-2.0.24/COPYING
[unknown]                  497     936  53.1% -lh5- 7b13 Dec  4  2011 SDL_gfx-2.0.24/LICENSE
[unknown]                 1100    2607  42.2% -lh5- 6a01 May 14  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_framerate.h
[unknown]                 1817    4510  40.3% -lh5- ce9a May 14  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_gfxBlitFunc.h
[unknown]                 1904   10961  17.4% -lh5- c632 May 14  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_gfxPrimitives.h
[unknown]                 4988   55909   8.9% -lh5- 8535 Feb 17  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_gfxPrimitives_font.h
[unknown]                 2030   10318  19.7% -lh5- 6ea2 May 14  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_imageFilter.h
[unknown]                 1143    2960  38.6% -lh5- 17e4 May 14  2012 SDL_gfx-2.0.24/SDK/local/common/include/SDL/SDL_rotozoom.h
[unknown]               122730  295118  41.6% -lh5- 5669 Dec 21 19:07 SDL_gfx-2.0.24/SDK/local/newlib/lib/libSDL_gfx.a
[unknown]                  484     950  50.9% -lh5- b331 Dec 21 19:12 SDL_gfx-2.0.24/SDK/local/newlib/lib/libSDL_gfx.la
[unknown]               126734  354274  35.8% -lh5- c818 Dec 21 19:07 SDL_gfx-2.0.24/SDK/local/newlib/lib/libSDL_gfx.so.23
[unknown]                  188     274  68.6% -lh5- af79 Dec 21 19:06 SDL_gfx-2.0.24/SDK/local/newlib/lib/pkgconfig/SDL_gfx.pc
[unknown]                  518     951  54.5% -lh5- 2d91 Dec 21 19:23 SDL_gfx-2.0.24/sdl_gfx.readme
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total        15 files  269608  752431  35.8%            Dec 21 20:46