metroboy VS glutin

He wrote a game engine, it renders transparent items using the painter's algorithm, which requires the items to be sorted in Z. He has a routine that iterates over all items to render them, and bubble-sorts the items in-place while iterating over the items (all in the same thread). The "compare and swap" in this case is the innermost functionality of bubblesort.

I assume the author is https://github.com/aappleby but I don't see any obvious candidate for this code. Maybe this? https://github.com/aappleby/metroboy but I can't see why a gate-level emulator woudl need to render transparent items using painter's algorithm.

If you want to go deeper, you can look at the reverse engineered schematic of most of the stuff except the CPU core in the DMG-CPU-Inside project. You could also consult the MetroBoy project, which builds on the previous project and aims to be accurate pretty much down to the logic gate level.

Well then, here's the ground truth - https://github.com/aappleby/MetroBoy/blob/master/src/GateBoyLib/GateBoyPixPipe.cpp

First I would try to deduce the timing from this gate-level simulation of the game boy, but the master branch was broken at the time, so I didn't manage to compile it. So, I tried deducing it from its underling reverse engineered schematics, but it would take too much time, if it even was possible.

You might find my hobby project interesting - https://github.com/aappleby/MetroBoy

Did you know the original Game Boy has non-deterministic behavior? Due to some strangeness in the integrated circuit that provides the CPU and some related parts (the SoC (system on a chip)), the same ROM may behave differently at different times when you'd think it should not. GateBoy is an attempt to make a perfect gate-level emulator for the Game Boy. Its README says:

Reminds me of GateBoy, which was posted a while back: https://news.ycombinator.com/item?id=28396927, https://github.com/aappleby/MetroBoy

GateBoy runs surprisingly fast for a gate-level simulation.

Yeah, render Emacs via GPU. We get underlined display server opengl context using surfman or glutin. Since PGTK is gtk, we are using gl_area. Replaced the Cairo drawing with this Firefox's Webrender. Using this, you can except some improvements to rendering. However, I dont know how to do benchmarks regarding GUI rendering.

But I think this will be solved when I switch back the GL context creation to glutin (thankfully, version 0.30 will decouple from windows creation), and I rewrite sprite-render.

Hello, I'm a beginner rust dev trying to make a simple thingy in piston. I've got a picture to follow the mouse cursor, but when I try to hide the cursor with window.set_capture_cursor(true) , it seems like mouse events seize to exist. I found this bug report Mouse Grabbing and MouseMoved Event · Issue #696 · rust-windowing/glutin (github.com) , but that was resolved years ago. I'm using pistoncore-glutin_window = "0.70.1". Am I doing something wrong? If not, is there any other easy way to hide the cursor?

Luckily, there are quite a few libraries out there that provide this functionality, some of them specifically aimed at OpenGL. Those libraries save us all the operation-system specific work and give us a window and an OpenGL context to render in. One of those libraries is glutin. It allows us to create an OpenGL context, define window parameters, and handle user input, which is plenty enough for our purposes.

Yeah this is a known issue in VMs https://github.com/rust-windowing/glutin/blob/master/ISSUES.md but I haven't found a way to fix it. It does not even work with llvmpipe mesa, which provides the newest OpenGL drivers.