Cocoa Port:
- Fix potential crashing bug when changing the video filter from None to a different video filter with 1x scaling.

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4990 5577840e-afb3-4e59-9ef3-2b7f898b1952
Video Filters:
- Have the Bilinear filter use the same SSurface struct as all the others.

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4991 5577840e-afb3-4e59-9ef3-2b7f898b1952