[Ohrrpgce] SVN: teeemcee/7801 gfx_sdl: round the size of the window upwards when dividing by the scale

[subversion at HamsterRepublic.com]

teeemcee
2016-03-15 06:16:29 -0700 (Tue, 15 Mar 2016)
145
gfx_sdl: round the size of the window upwards when dividing by the scale

Avoids black lines around the window edges if it doesn't divide evenly.
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U   wip/gfx_sdl.bas