how does EmscriptenExtension.js access objects in Module's closure?
On Wed, 26 Aug 2020 at 09:31, Prashanth Nethi <[email protected]>
wrote:
> Hi,
>
> There was a similar requirement in our app. And this is what I did.
> Although I am not sure if this is the official way or if there are any
> better way to do it.
>
> 1) Added method to Module["getNewId"] = function() {...} to a new JS
> file call it EmscriptenExtension.js
> 2) Link this JS file using em_link_post_js
> 3) This would make getNewId available to the Module object, that you
> receive as an argument, upon instantiating the Wasm.
>
> Hope this helps.
>
>
> On Tuesday, August 25, 2020 at 5:09:37 PM UTC+5:30 [email protected] wrote:
>
>> Hi,
>> My app is using the Module.GL.getNewId function in order to create
>> handles to WebGL textures, This is done so that I'll be able to load the
>> textures on the JS side, and use them via OpenGL APIs in WASM. We want to
>> start building with MODULARIZE=1, but this hides the GL object in the
>> Module's closure.
>> I know that this can be fixed with post-js operations, but I'd like to
>> have a solution that is less likely to be broken by future versions of
>> Emscripten, so I want to open a PR that will fix this situation. I see 3
>> possible solutions:
>> 1. Expose the GL object as-is on the Module.
>> 2. Expose a wrapper to the getNewId function, and a matching function
>> that allows removal of said handle.
>> 3. Add to the module a JS function that returns a pair - a WebGL texture,
>> and its OpenGL handle, and a matching function to remove said handle.
>>
>> Are any of these ideas worth pursuing? Anything I might be missing?
>>
>> --
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