- Changed the way gamma works for D3DFB: In windowed mode, the display is

drawn to a texture, then that texture is copied to the real back buffer
  using a gamma-correcting pixel shader. In fullscreen mode, SetGammaRamp
  is used.
- Fixed flashing of vid_fps display when fps > 1000.
- Fixed loading of RGB textures for native 2D mode.
- Changed the first rotozoomer's data because it just became too obvious when
  the backdrop is drawn with a full 256 distinct colors available.
- Set the player backdrop to update no more frequently than 35 FPS, so opening
  the player setup menu before starting a game won't produce a very fast
  moving backdrop.
- Changed the player backdrop into a texture so that it can be drawn like
  anything else.


SVN r648 (trunk)

src/r_plane.cpp

@@ -468,7 +468,7 @@ void R_ClearPlanes (bool fullclear)
 		clearbufshort (floorclip, viewwidth, viewheight);
 		// [RH] clip ceiling to console bottom
 		clearbufshort (ceilingclip, viewwidth,
-			ConBottom > viewwindowy && !bRenderingToCanvas
+			!screen->Accel2D && ConBottom > viewwindowy && !bRenderingToCanvas
 			? ((ConBottom - viewwindowy) >> detailyshift) : 0);
 
 		lastopening = 0;