Windows XP and Windows 7

[ConLenov]

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How do I compile a kosmonaut to run under Windows XP and Windows 7?

[twilco]

Hi @ConLenov!

I haven't yet had luck getting Kosmonaut compiled for Windows (but to be fair, I haven't tried very hard). I did try to include Windows in our Travis CI builds a while back, but was unsuccessful due to some missing DLLs. At that time, Travis support for Windows self-described as "beta", so it may have been a problem on their end.

Unfortunately, the build requirements have also complicated since then, namely step 2 in in the instructions. Kosmonaut uses servo/font-kit for text rendering, which under the hood uses an arbitrary combination of platform-specific font loaders and sources (e.g. Core Text, DirectWrite) in tandem with FreeType, a cross-platform loader and source. I believe with the way Kosmonaut is currently written, FreeType will be required for compilation on all platforms.

I do have a Windows 10 box I can test compilation on, so I'll give that a shot when I find some time. I don't have any machines running Windows XP nor Windows 7, so I won't be able to test builds for those environments personally.

[twilco]

I was able to build and run Kosmonaut on Windows 10 simply pulling the repository down, running cargo build, and then cargo run. Still not sure about XP or Windows 7 / 8 -- if you have access to machines running those, feel free to give it a try and report back.

[timw4mail]

Rust only has tier 3 support for Windows XP, so issues are quite likely, and probably not worth fixing.

Windows 7 is fully supported, so that should be simpler.

See: https://doc.rust-lang.org/nightly/rustc/platform-support.html

[aaveter]

After installing vc_redist on win 7 x86 command "kosmonaut.exe https://twilco.github.io/assets/html/rainbow-divs.html" tried to start the application, but got this output:

thread 'main' panicked at 'called Result::unwrap() on an Err value: NoAvailablePixelFormat', components\gfx\src\headed.rs:40:10 stack backtrace: 0: 0x1b3498a - ... 13: 0x12f2fb2 - 14: 0x774a3c45 - BaseThreadInitThunk 15: 0x773637f5 - RtlInitializeExceptionChain 16: 0x773637c8 - RtlInitializeExceptionChain

I think, its because old OpenGL version on my old laptop. Apparently it will start with a newer OpenGL.

[aaveter]

But tell me, do you have any idea why it is so slow on Windows 10 (core i5 16 Rb ram), do you know about it?