Wrong Buffer allocation on non-JS OpenGL ES targets

[rcstuber]

heaps/h3d/scene/MeshBatch.hx

Line 443 in de13acc

var vertexCountAllocated = #if js Std.int( MAX_BUFFER_ELEMENTS * 4 / p.bufferFormat.stride ) #else hxd.Math.imin( hxd.Math.nextPOT( vertexCount ), maxVertexCount ) #end;

Apparently the size of the allocated buffer on Android needs to be the same as on JS targets. Thus this is likely related to OpenGL ES?
I so far tested this only on Android, not on iOS.
Is there a suitable preprocessor flag to catch this for other non-JS targets? Like maybe #if glES ?

Here's the error Android throws when not having #js set:

 ValidateProgramUniformBlockBindings: Bound buffer is too small (Bound buffer is 16384 bytes, 65520 bytes expected)
DrawElements: ValidateState() failed

[TothBenoit]

There is no preprocessor flag for GLES, as it is detected at runtime in the GLDriver.

heaps/h3d/impl/GlDriver.hx

Lines 189 to 192 in de13acc

	var v : String = gl.getParameter(GL.VERSION);
	var reg = ~/ES ([0-9]+\.[0-9]+)/;
	if( reg.match(v) )
	glES = Std.parseFloat(reg.matched(1));

A solution could be to check if the glES variable is null or not when using GLDriver.

[rcstuber]

The problem is that the js guard in GLDriver is really being mixed-and-matched to check for GL ES stuff on one hand and browser specifics on the other. Correct solution would probably to split those two up. But that would be a bigger rework I guess?!

Maybe easier solution:
Add a MobileAPI (or alike) to Driver.Features enum and have the GLDriver return true if glESis non-null, regardless of the #js flag being set.