diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html')
-rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html new file mode 100644 index 0000000000..dee3597546 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/glsl-vertex-branch.html @@ -0,0 +1,128 @@ +<!-- +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +--> + +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>GLSL function nodes Test</title> +<link rel="stylesheet" href="../../../resources/js-test-style.css"/> +<link rel="stylesheet" href="../../../resources/glsl-feature-tests.css"/> +<script src="../../../js/js-test-pre.js"></script> +<script src="../../../js/webgl-test-utils.js"> </script> + +<script id="vshaderNoBranch" type="x-shader/x-vertex"> +attribute vec3 aPosition; +uniform float redIntensity; + +varying vec4 vColor; + +float MADBug(float paramValue) { + float localVar = 1.0; + return 0.25 * ceil(localVar) + paramValue; +} + +void main(void) { + gl_Position = vec4(aPosition, 1.0); + vColor = vec4(MADBug(redIntensity), 0., 0., 1.); +} +</script> + +<script id="vshaderBranch" type="x-shader/x-vertex"> +attribute vec3 aPosition; +uniform float redIntensity; + +varying vec4 vColor; + +float MADBug(float paramValue) { + float localVar = 1.0; + return 0.25 * ceil(localVar) + paramValue; +} + +void main(void) { + float condition = 42.; + if (condition == 0.) {} + gl_Position = vec4(aPosition, 1.0); + vColor = vec4(MADBug(redIntensity), 0., 0., 1.); +} +</script> + +<script id="fshader" type="x-shader/x-fragment"> +precision mediump float; + +varying vec4 vColor; +void main() +{ + gl_FragColor = vColor; +} +</script> +</head> +<body> +<canvas id="canvasNoBranch" width="50" height="50"></canvas> +<canvas id="canvasBranch" width="50" height="50"></canvas> +<div id="description">This tests against a Mac driver bug related to branches + inside of Vertex Shaders.</div> +<div id="console"></div> +<script> +"use strict"; +var width = 50; +var height = 50; +var wtu = WebGLTestUtils; + +function drawAndRead(canvasID, vshaderID, buffer) +{ + var gl = wtu.create3DContext(canvasID); + var program = wtu.setupProgram(gl, [vshaderID, "fshader"], ["aPosition"]); + var vertexObject = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -1,-1,0, 1,-1,0 ]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(0); + gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); + + var loc = gl.getUniformLocation(program, "redIntensity"); + gl.uniform1f(loc, 0.75); + gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); + gl.drawArrays(gl.TRIANGLES, 0, 3); + gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buffer); + if (gl.getError() != gl.NO_ERROR) + return false; + return true; +} + +function compareRendering(buffer1, buffer2, tol) +{ + for (var i = 0; i < width * height * 4; ++i) { + if (Math.abs(buffer1[i] - buffer2[i]) > tol) + return false; + } + return true; +} + +function init() +{ + description("tests vertex shader with branch"); + + var bufBranch = new Uint8Array(width * height * 4); + var bufNoBranch = new Uint8Array(width * height * 4); + + if (drawAndRead("canvasBranch", "vshaderBranch", bufBranch) == false || + drawAndRead("canvasNoBranch", "vshaderNoBranch", bufNoBranch) == false) { + testFailed("Setup failed"); + } else { + if (compareRendering(bufBranch, bufNoBranch, 4) == false) + testFailed("Rendering results are different"); + else + testPassed("Rendering results are the same"); + } +} + +init(); +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> +</body> +</html> + |