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web: Improved canvas webgl creation logic

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This commit is contained in:
WerWolv 2024-07-02 23:16:19 +02:00
parent c7c4ecad6d
commit 3b799388c2
1 changed files with 18 additions and 6 deletions
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22
dist/web/source/wasm-config.js vendored
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@ -111,13 +111,25 @@ var Module = {
print: (function() { })(),
printErr: function(text) { },
canvas: (function() {
let canvas = document.getElementById('canvas');
// As a default initial behavior, pop up an alert when webgl context is lost. To make your
// application robust, you may want to override this behavior before shipping!
// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
canvas.addEventListener("webglcontextlost", function(e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);
const canvas = document.getElementById('canvas');
canvas.addEventListener("webglcontextlost", function(e) {
alert('WebGL context lost, please reload the page');
e.preventDefault();
}, false);
if (typeof WebGL2RenderingContext !== 'undefined') {
let gl = canvas.getContext('webgl2', { stencil: true });
if (!gl) {
console.error('WebGL 2 not available, falling back to WebGL');
gl = canvas.getContext('webgl', { stencil: true });
}
if (!gl) {
alert('WebGL not available with stencil buffer');
}
return canvas;
} else {
alert('WebGL 2 not supported by this browser');
}
})(),
setStatus: function(text) { },
totalDependencies: 0,