diff options
Diffstat (limited to 'dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/uniform-location-length-limits.html')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/uniform-location-length-limits.html | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/uniform-location-length-limits.html b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/uniform-location-length-limits.html new file mode 100644 index 0000000000..8aeaeb1937 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/glsl/misc/uniform-location-length-limits.html @@ -0,0 +1,86 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<!-- +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. +--> +<title>WebGL uniform location length tests</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> +</head> +<body> +<canvas id="example" width="50" height="50"> +There is supposed to be an example drawing here, but it's not important. +</canvas> +<div id="description">Verify limits on the lengths of uniform locations per WebGL spec, "Maximum Uniform and Attribute Location Lengths".</div> +<div id="console"></div> +<script id="goodVertexShader" type="x-shader/x-vertex"> +// A vertex shader where the needed uniform location is exactly 256 characters. +struct Nesting2 { + vec4 identifier62CharactersLong_01234567890123456789012345678901234; +}; + +struct Nesting1 { + Nesting2 identifier64CharactersLong_0123456789012345678901234567890123456; +}; + +uniform Nesting1 identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789; + +void main() { + gl_Position = identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789.identifier64CharactersLong_0123456789012345678901234567890123456.identifier62CharactersLong_01234567890123456789012345678901234; +} +</script> +<script id="badVertexShader" type="x-shader/x-vertex"> +// A vertex shader where the needed uniform location is 257 characters. +struct Nesting2 { + vec4 identifier63CharactersLong_012345678901234567890123456789012345; +}; + +struct Nesting1 { + Nesting2 identifier64CharactersLong_0123456789012345678901234567890123456; +}; + +uniform Nesting1 identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789; + +void main() { + Nesting2 temp = identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789.identifier64CharactersLong_0123456789012345678901234567890123456; + gl_Position = temp.identifier63CharactersLong_012345678901234567890123456789012345; +} +</script> +<script id="fragmentShader" type="x-shader/x-fragment"> +precision mediump float; + +void main() { + gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); +} +</script> +<script> +"use strict"; +var wtu = WebGLTestUtils; +var gl = wtu.create3DContext("example"); + +debug("Test uniform location underneath the length limit"); +var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader"); +shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); +var uniformLoc = gl.getUniformLocation(program, "identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789.identifier64CharactersLong_0123456789012345678901234567890123456.identifier62CharactersLong_01234567890123456789012345678901234"); +shouldBeNonNull('uniformLoc'); +wtu.glErrorShouldBe(gl, gl.NONE); + +debug("Test uniform location over the length limit"); +program = wtu.loadProgramFromScript(gl, "badVertexShader", "fragmentShader"); +wtu.glErrorShouldBe(gl, gl.NONE); +shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); +var uniformLoc = gl.getUniformLocation(program, "identifier128CharactersLong_0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789.identifier64CharactersLong_0123456789012345678901234567890123456.identifier63CharactersLong_012345678901234567890123456789012345"); +wtu.glErrorShouldBe(gl, gl.INVALID_VALUE); +shouldBeNull('uniformLoc'); + +var successfullyParsed = true; +</script> +<script src="../../../js/js-test-post.js"></script> +</body> +</html> |