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content / test / data / gpu / pixel_webgl_fullscreen_quad.js [blame]
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const vertexShader = [
"attribute vec3 pos;",
"void main(void)",
"{",
" gl_Position = vec4(pos, 1.0);",
"}"
].join("\n");
const fragmentShader = [
"precision mediump float;",
"void main(void)",
"{",
" gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0);",
"}"
].join("\n");
let gl;
function logOutput(s) {
if (window.domAutomationController)
window.domAutomationController.log(s);
else
console.log(s);
}
function sendResult(status, detail) {
logOutput(status + ' ' + detail);
if (window.domAutomationController) {
window.domAutomationController.send(status);
}
}
function initGL(canvas, opt_attribs)
{
try {
let attribs = Object.assign({ powerPreference: "low-power" },
opt_attribs || {});
gl = canvas.getContext("webgl", attribs);
} catch (e) {}
return gl;
}
function setupShader(source, type) {
var shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS))
return null;
return shader;
}
function setupProgram(vs_id, fs_id) {
var vs = setupShader(vertexShader, gl.VERTEX_SHADER);
var fs = setupShader(fragmentShader, gl.FRAGMENT_SHADER);
if (!vs || !fs)
return null;
var program = gl.createProgram();
gl.attachShader(program, vs);
gl.attachShader(program, fs);
gl.linkProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS))
return null;
gl.useProgram(program);
return program;
}
function setupBuffer(gl) {
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
var vertexData = [
// Triangle 1
-1.0, -1.0, 0.0,
1.0, 1.0, 0.0,
-1.0, 1.0, 0.0,
// Triangle 2
-1.0, -1.0, 0.0,
1.0, -1.0, 0.0,
1.0, 1.0, 0.0
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertexData), gl.STATIC_DRAW);
}
function setupGL() {
var program = setupProgram("shader-vs", "shader-fs");
if (!program)
return false;
var posAttr = gl.getAttribLocation(program, "pos");
gl.enableVertexAttribArray(posAttr);
setupBuffer(gl);
var stride = 3 * Float32Array.BYTES_PER_ELEMENT;
gl.vertexAttribPointer(posAttr, 3, gl.FLOAT, false, stride, 0);
gl.clearColor(0.0, 0.0, 0.0, 0.0);
gl.viewport(0, 0, 300, 300);
gl.disable(gl.DEPTH_TEST);
if (gl.getError() != gl.NO_ERROR)
return false;
return true;
}
function drawQuad() {
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 6);
}
function setup(opt_attribs)
{
let canvas = document.getElementById("c");
initGL(canvas, opt_attribs);
if (gl && setupGL(gl))
return true;
if (window.domAutomationController)
window.domAutomationController.send('FAILURE');
return false;
}
function drawSomeFrames(callback)
{
let swapsBeforeCallback = 60;
function drawSomeFramesHelper() {
if (--swapsBeforeCallback == 0) {
callback();
} else {
drawQuad();
window.requestAnimationFrame(drawSomeFramesHelper);
}
}
window.requestAnimationFrame(drawSomeFramesHelper);
}
let _runningOnDualGPUSystem = false;
function setRunningOnDualGpuSystem() {
_runningOnDualGPUSystem = true;
}
function isRunningOnDualGpuSystem() {
return _runningOnDualGPUSystem;
}
function getUnmaskedVendor() {
let ext = gl.getExtension('WEBGL_debug_renderer_info');
let renderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);
if (renderer.startsWith('ANGLE'))
return renderer;
return gl.getParameter(ext.UNMASKED_VENDOR_WEBGL);
}
function getSplitUnmaskedVendor() {
let vendor = getUnmaskedVendor().toLowerCase();
// Like:
// Intel Inc.
// ATI Technologies Inc.
// Renderer would be like:
// Intel(R) HD Graphics 630
// AMD Radeon Pro 560 OpenGL Engine
// Handle parentheses just in case.
return vendor.split(/[ ()]/);
}
function assertRunningOnLowPowerGpu() {
if (!isRunningOnDualGpuSystem())
return false;
let tokens = getSplitUnmaskedVendor();
if (tokens.includes('intel')) {
logOutput('System was correctly running on Intel integrated GPU');
return true;
}
sendResult(
'FAIL',
'System wasn\'t running on Intel integrated GPU: vendor = ' +
getUnmaskedVendor());
return false;
}
function assertRunningOnHighPerformanceGpu() {
if (!isRunningOnDualGpuSystem())
return false;
let tokens = getSplitUnmaskedVendor();
if (tokens.includes('ati') || tokens.includes('amd') ||
tokens.includes('nvidia')) {
logOutput(
'System was correctly running on discrete GPU: ' + getUnmaskedVendor());
return true;
}
sendResult(
'FAIL',
'System wasn\'t running on discrete GPU: vendor = ' +
getUnmaskedVendor());
return false;
}