Make the SW renderer work properly by fixing support for textures with no alpha channels.
Make the SW renderer work properly by fixing support for textures with no alpha channels.

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