How to determine maximum texture size ?

[rahuliyers]

In cocos2d-x, back when OpenGL was supported I used to do something like this:

GLint m_maxTextureSize = 0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &m_maxTextureSize);

But now on iOS one has metal and android is shifting to Vulcan

So what is the preferred way to check maximum texture size for both iOS and Android while supporting both newer and older devices ?

[rh101]

You would have look up the specifics of the Metal API to see if it provides an interface to get that information, or some other way to handle it.

Just to clarify for anyone coming across this thread, this doesn't have anything to do with the Axmol game engine.

[aismann]

Just to clarify for anyone coming across this thread, this doesn't have anything to do with the Axmol game engine.
@rh101
should we add/define a TAG like: "No Axmol Issue"?
I added "general problem".

[rh101]

It may be a good idea to have a tag that implies that meaning, because a person may see the posts on here and not read them thoroughly, thinking it is an Axmol issue or limitation, when it is in fact not.

Something like "General"/"General Query" or similar, without the word "Problem", since that implies something is wrong, when posts may not be about a problem. It's also best not to use "No Axmol Issue", since it's a little negative, and users may feel like they can't put posts on here that are not directly related to Axmol.

[rahuliyers]

thank you. I did look up the metal documentation, and from iOS 13.0 there is a way that has been mentioned. But rather than having to write specific code for OpenGL, Metal and Vulcan, to determine platform specific things, I feel it would be very useful if there was an API available or even just some sample code (even if its not officially supported), because then a person can focus just on axmol rather than getting into details of specific platforms. (Just a suggestion). I imagine this is a common scenario because the great thing about axmol is that it supports cross platform development, so a cross platform solution for looking up the texture size supported would be great.

[halx99]

backend::DriverBase::getInstance()->getMaxTextureSize()