參考資訊：
https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=sdl_omap.git;a=blob;f=README.OMAP
| 變數名稱 | 說明 |
|---|---|
| SDL_VIDEODRIVER | =omapdss |
| SDL_OMAP_LAYER_SIZE | =WxH (如：640x480) =fullscreen (全屏顯示) =scaled (等比拉伸) =pixelperfect (整數倍拉伸) |
| SDL_OMAP_BORDER_CUT | =left,right,top,bottom (如：0,0,16,0，隱藏Top的16個像素) |
| SDL_OMAP_VSYNC | =1 (SDL_Flip()會等待VSYNC) =0 (SDL_Flip()不會等待VSYNC) |
| SDL_OMAP_DEFAULT_MODE | =WxH (取代SDL_SetVideoMode()的設定值) |
| SDL_OMAP_FORCE_DOUBLEBUF | 強制使用Double Buffer |
| SDL_OMAP_FORCE_DIRECTBUF | 直接更新Framebuffer |
| SDL_OMAP_NO_TS_TRANSLATE | 關閉Touchscreen映射 |
| SDL_OMAP_TS_FORCE_TSLIB | 強制從tslib讀取Touchscreen數值 |
| SDL_OMAP_NO_PANDORA_TV | 關閉TVout的Framebuffer更新 |
P.S. Filter會呼叫/usr/pandora/scripts/op_videofir.sh，default(預設值)、none(沒有濾波)