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webgl-allow-shared.html
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<!DOCTYPE html>
<html>
<head>
<title>AllowShared in WebGL</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
</head>
<body>
<canvas width="100" height="100"></canvas>
<canvas width="100" height="100"></canvas>
<script>
if (window.internals)
internals.settings.setWebGLErrorsToConsoleEnabled(false);
test(() => {
const canvas = document.querySelectorAll('canvas')[0];
const gl = canvas.getContext("webgl");
const buffer = gl.createBuffer();
const bufferData = new Float32Array(new SharedArrayBuffer(128))
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, bufferData, gl.STATIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, bufferData.length, bufferData);
const texture = gl.createTexture();
const textureData = new Float32Array(new SharedArrayBuffer(128))
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.FLOAT, textureData);
gl.texSubImage2D(gl.TEXTURE_2D, 0, 30, 0, 4, 4, gl.RGBA, gl.FLOAT, textureData);
gl.compressedTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, textureData);
gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 1, 1, gl.RGBA, textureData);
gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.FLOAT, textureData);
}, `WebGL AllowShared`);
test(() => {
const canvas = document.querySelectorAll('canvas')[1];
const gl = canvas.getContext("webgl2");
const buffer = gl.createBuffer();
const bufferData = new Float32Array(new SharedArrayBuffer(128))
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, bufferData, gl.STATIC_DRAW, 0, 0);
gl.bufferSubData(gl.ARRAY_BUFFER, bufferData.length, bufferData, 0, 0);
gl.getBufferSubData(gl.ARRAY_BUFFER, 0, bufferData);
const texture = gl.createTexture();
const textureData = new Float32Array(new SharedArrayBuffer(128))
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, 1, 1, 0, 0, gl.RGBA, gl.FLOAT, textureData);
gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, 1, 1, 0, 0, gl.RGBA, gl.FLOAT, textureData, 0);
gl.texSubImage3D(gl.TEXTURE_3D, 0, 0, 0, 0, 1, 0, 0, gl.RGBA, gl.FLOAT, textureData);
gl.compressedTexImage3D(gl.TEXTURE_2D_ARRAY, 0, gl.COMPRESSED_RGBA8_ETC2_EAC, 4, 4, 1, 0, textureData);
gl.compressedTexSubImage3D(gl.TEXTURE_2D_ARRAY, 0, 0, 0, 0, 4, 4, 1, gl.COMPRESSED_RGBA8_ETC2_EAC, textureData)
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.FLOAT, textureData, 0);
gl.texSubImage2D(gl.TEXTURE_2D, 0, 30, 0, 4, 4, gl.RGBA, gl.FLOAT, textureData, 0);
gl.compressedTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, textureData, 0);
gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 1, 1, gl.RGBA, textureData, 0);
gl.readPixels(0, 0, 1, 1, gl.RGBA, gl.FLOAT, textureData, 0);
}, `WebGL2 AllowShared`);
</script>
</body>
</html>