I'm using SDL2 2.30.0. The main loop is pretty simple, it does a few SDL_RenderFillRects to create areas, then several SDL_RenderCopy where the source is a SDL_Texture created from a SDL_Surface using SDL_CreateTextureFromSurface that was loaded from files at boot. A final call to SDL_RenderPresent finishes it off. They do include an alpha channel however.
I was expecting the sprite blitting to be trivial, but it is surprisingly slow. The sprites are quite small, only a few hundred pixels total. I have a theory that it is copying the pixels over the X11 channel each time instead of loading the sprite sheets onto the server once and copying regions using XCopyArea to tell the server to do its own blitting.
I was expecting the sprite blitting to be trivial, but it is surprisingly slow. The sprites are quite small, only a few hundred pixels total. I have a theory that it is copying the pixels over the X11 channel each time instead of loading the sprite sheets onto the server once and copying regions using XCopyArea to tell the server to do its own blitting.