Maybe a leak in wgpuQueueSubmit() or wgpuSurfacePresent() on Windows

[friflo]

I am currently implementing a C# wrapper on top of wgpu-native.
It works as expected. Like wgpu-native - very reliable!

Now I checked if there are any memory leaks.
To simplify observing leaks I disabled VSync by setting presentMode = WGPUPresentMode_Immediate.
Doing this will make leaks easier to observe as they grow faster.

A simple C# triangle example renders with ~11000 FPS (Vulkan) on Windows 11 with Nvidia RTX 4070.
I use the Task Manager and watch the "Memory" column to look for leaks.

In this case the memory grows ~100kb/sec. Which means ~8 byte/frame.

I made the same test on macOS with Mac Mini M2. The same application has no leak. Memory stays constant.
I am also sure the C# layer does not allocate anything.

So I decided to run the triangle example in wgpu-native.
After painful :) setup as a VS solution I got the example running.
(I failed to setup the make environment successful).

What I observed:
If I comment out either wgpuQueueSubmit() or wgpuSurfacePresent() there is no leak anymore.
It could be also the case that there is a leak is in the GPU driver.

Maybe someone else could confirm or disprove this behavior on Windows 11 with Nvidia driver.

WGPUAdapterInfo - Vulkan

description: 572.16
vendor: NVIDIA
architecture:
device: NVIDIA GeForce RTX 4070 SUPER
backend type: 6
adapter type: 0
vendorID: 10de
deviceID: 2783