[Ohrrpgce] SVN: james/2449 Fix up gfx_sdl backend.

[subversion at HamsterRepublic.com]

james
2008-11-11 19:08:57 -0800 (Tue, 11 Nov 2008)
437
Fix up gfx_sdl backend.
* Fix broken double-double-buffering. Now for gfx_sdl, allmodex page 0 and 1
  are exactly the same. All double-buffering is handled by SDL_Flip()
  This means the frame-rate is now correct, and no longer skips every other frame
* Fix broken fades into and out of battle. This was a side-effect of letting SDL
  handle the double-buffering. I fixed this in bmod.bas, but don't worry, it has
  no effect on gfx_fb
---
U   wip/allmodex.bas
U   wip/bmod.bas
U   wip/gfx.bi
U   wip/gfx_fb.bas
U   wip/gfx_sdl.bas
U   wip/whatsnew.txt