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[HTML5] Implement WebGL fallback.

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According to project settings and when WebGL2 is not available.
This commit is contained in:
Fabio Alessandrelli
2021-04-06 12:46:33 +02:00
parent ea5b3dda93
commit 00f3807a24
3 changed files with 14 additions and 2 deletions
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11
platform/javascript/js/libs/library_godot_display.js
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@@ -719,6 +719,17 @@ const GodotDisplay = {
GodotRuntime.setHeapValue(r_y, (y - rect.y) * rh, 'i32');
},
godot_js_display_has_webgl__sig: 'ii',
godot_js_display_has_webgl: function (p_version) {
if (p_version !== 1 && p_version !== 2) {
return false;
}
try {
return !!document.createElement('canvas').getContext(p_version === 2 ? 'webgl2' : 'webgl');
} catch (e) { /* Not available */ }
return false;
},
/*
* Canvas
*/