Fix blending modes for primitives.
Fix blending modes for primitives.

cebash/SDL_PSL1GHT,cebash/SDL_PSL1GHT,aduros/SDL,cebash/SDL_PSL1GHT,aduros/SDL,aduros/SDL,aduros/SDL,aduros/SDL,cebash/SDL_PSL1GHT,cebash/SDL_PSL1GHT