This fixes the emscripten binding errors that we've been seeing
with the <filament-viewer> test page, which prevented us from
including web in the last few Filament releases.
The binding errors were caused by double-initializing the emscripten
module.
I fixed this by allowing clients (e.g. FilamentViewer) to call
Filament.init() more than once. We now accumulate a list of "on ready"
callbacks that get triggered after the emscripten module becomes ready.
As far as I can tell, multiple canvases were actually always broken, and
the viewer test page worked in the past only because we got lucky.
Since postRun can no longer be set from within the extern post JS, we
now use the promise rather than postRun.
This upgrades emsdk to 1.39.19 (see note in #2800).
We've been using STB for a while now and we already include a JPEG
decoder in our wasm bundle. This removes some vestigial code that was
getting in the way.
Fixes#1565.
This restores the canvas-based decoding method that was removed in #214,
but only for JPEG images. We continue to decode PNG images in C because
canvas-decoding mucks with alpha and prevents us from reading 16-bit
PNG.
This adds a few new functions to the JavaScript bindings. It also adds
our JavaScript docs into the CMake build system for machines that meet
the Python requirements.
Philip Rideout
Ben Doherty