Window coordinates are broken?

[jarrett]

After upgrading to the latest Piston dependencies, window coordinates seem to be broken, at least on OSX. Here is a screen capture of the Hello World example demonstrating the error. The same thing occurs for every application I've tested, including the Piston examples and my home-grown apps.

[bvssvni]

Seems to be broken on the Glutin window back-end.

[bvssvni]

You can switch to let window: PistonWindow<(), Sdl2Window> = ... to fix the problem temporarily.

This requires extern crate sdl2_window; and use sdl2_window::Sdl2Window;.

[jarrett]

Thanks! Good to know. Should I post this issue to the glutin_window Github?

[bvssvni]

Not necessary. It is probably a small fix.

[bvssvni]

The "user_input" example seem to work?

[bvssvni]

There is an issue on Glutin about the origin moving on Retina displays https://github.com/tomaka/glutin/issues/503

[bvssvni]

I guess that there are two bugs involved here, 1) that moves the origin and 2) related to resizing.

The "user_input" example is used to test backends but does not use PistonWindow. It could be that the second bug is triggered by PistonWindow.

[bvssvni]

GlutinWindow does not emit resize events.

[bvssvni]

The second bug is caused by https://github.com/tomaka/glutin/issues/445

[bvssvni]

I've fixed the second bug https://github.com/PistonDevelopers/piston_window/pull/74.

[jarrett]

Thanks!

So just to confirm, PistonWindow's default config is still broken pending the GlutinWindow fix, correct?

In the meantime, cargo update and switching to Sdl2Window per your instructions above worked for me.

[bvssvni]

For Retina displays it is pending on https://github.com/tomaka/glutin/issues/503.

[willbush]

This might be related to an issue I have been running into when going through sudoku tutorial. I have been trying to figure out why my y-axis is off the screen. I finally cloned the Piston-Tutorial repo and ran the sudoku tutorial and saw that it works fine. However, I eventually realized it worked because it was using an older version of the dependencies in the Cargo.lock file. When I delete the Cargo.lock file, clean, and re-build it gets the latest version where the y axis is offset. See images below.

[dependencies]
# working version
piston = "0.35.0"
piston2d-graphics = "0.23.0"
piston2d-opengl_graphics = "0.49.0"
pistoncore-glutin_window = "0.42.0"

# latest version where screen is off 
# piston = "0.36.0"
# piston2d-graphics = "0.26.0"
# piston2d-opengl_graphics = "0.52.0"
# pistoncore-glutin_window = "0.45.3"

image of working version image of broken version

[bvssvni]

Closing as outdated.