Widescreen Support

[Fancy2209]

Feature Request

What feature are you suggesting?

Overview:

Support for Anamorphic Widescreen

Smaller Details:

For Widescreen on the Wii, the guOrtho width needs to be different from the viewport width (e.g. viewport is 640x480, but orthographic projection uses 854, and that's how anamorphic is done), but there is no way I can see to do this (or to modify the code to handle this while beeing sure it won't break something, since setting the guOrtho width to (width * 16.0f / 9.f) could work, but I fear it wouldn't be enough for this kind of thing since the app needs to actually expect to be displaying at 854)
I'm also not sure if OpenGX needs more changes than it's Orthographic Projection's width

Nature of Request:

• Change

Why would this feature be useful?

Allows people with their Wii's setup for widescreen to have apps using OpenGX to display properly

[mardy]

Hi, and thanks for creating this issue! I think, though, that this is not an opengx task, since opengx is not responsible for configuring the TV mode; this is accomplished by the integration library (SDL, freeGLUT, glfw, etc), which should give you a way to know whether pixels are stretched.

It's not an easy task anyway, because the Wii case is a bit unique: these libraries are primarily intended for PCs or devices with an embedded screen, where pixels are always square. SDL has SDL_GetDisplayDPI(), so we might be able to do something there, by reading the horizontal and vertical dpi values, and use them to setup the aspect ration in opengx.

I would recommend you to file a bug to the integration library you use, since this issue is not really specific to opengx (or even OpenGL): you'd have the same problems if we were drawing directly to the framebuffer.

[Fancy2209]

Ah I see
I've been working on SDL2 Widescreen, I filed this issue mainly because I saw _ogx_setup_2D_projection and thought it'd conflict with SDL's own guOrtho, I had issues on my implementation when I tested things tough, let me make sure if there is no conflicts and then I'll close the issue if this is the case

[Fancy2209]

Just checked, yep, my bad, for OpenGX changes are user side, that func induced me by error, my bad!