Monthly archives: November, 2016

In Chrome 55+ the function setVelocity has been removed. If your C++ game depends on OpenAL and somewhere you call:

alSource3f(mAlSourceId, AL_VELOCITY, …

alSource3f(mAlSourceId, AL_SOURCE_RELATIVE, ...

Then you should either remove those calls, but if your game depends on AL_SOURCE_RELATIVE and you cannot remove it, then it’s required to add a simple snipped to your HTML page:

// A stub for missing setVelocity in Chrome 56+
try {
	if (typeof PannerNode.prototype.setVelocity == "undefined") {
		PannerNode.prototype.setVelocity = function() {}
	}
} catch (e) {}

try {
	if (typeof AudioListener.prototype.setVelocity == "undefined") {
		AudioListener.prototype.setVelocity = function() {}
	}
} catch (e) {}

It’s required due an underlying implementation that sets velocity while you call set source relative.

Windows Subsystem for Linux allows to run Linux binaries directly under Windows. Next logical step might be to try to install Docker on the Linux, and then run images.

It might work, never tried. But, I’ve discovered (quite late – I have to admit) a way to ‘mount’ directly any Docker image as a subsystem for Windows 10.

What is needed:

• Windows 10 – With Anniversary update / Insider
• Repository: RoliSoft/WSL-Distribution-Switcher
• Example image: trzeci/emscripten:sdk-master-64bit

Simple and useful snippet that helps to make an unique identifier for any type in C++.

template <typename T>
std::uintptr_t getTypeId() {
	static int id;
	return reinterpret_cast<std::uintptr_t>(&id);
}

It uses a fact that function static member of a function is a part of template installation, hence it contains own, unique address.