On Thu, Apr 20, 2017 at 5:38 PM, Greg Ewing <greg.ew...@canterbury.ac.nz> wrote:
> Ian Mallett wrote: > >> I like this idea a lot, modulo that you should also store the reference >> to the window. >> > > The Renderer would hold a reference to the window itself, > so you would only need to keep a separate reference to the > window if you wanted to use different renderers with it > at different times, or switch one renderer around between > different windows. > > You might actually want to do the latter. If the Renderer > encapsulates an OpenGL context, using just one Renderer > would make it easy to share the same set of textures etc. > for all of your drawing. > > So we have two use cases. If you have just one window: > > r = Renderer(window = Window()) > # do some drawing with r > > If you have multiple windows and want shared rendering > state: > > w1 = Window() > w2 = Window() > r = Renderer() > > r.window = w1 > # do some drawing with r > r.window = w2 > # do some drawing with r The second use-case is more-or-less exactly what I was thinking. (I'm still unconvinced the first use case really warrants a dedicated constructor.) I'm not sure if SDL 2's hardware renderers support being shared. I assume they do, just from the API they export, but I don't know. > -- > Greg > Ian
