third_party/webgl/sdk/tests/conformance/glsl/misc/attrib-location-length-limits.html - Issue 9373009: Check in webgl conformance tests r16844 from khronos.

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Issue 9373009: Check in webgl conformance tests r16844 from khronos. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/

Patch Set: Created 8 years, 10 months ago

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	1 <!DOCTYPE html>

	2 <html>

	3 <head>

	4 <meta charset="utf-8">

	5 <title>WebGL attrib location length tests</title>

	6 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>

	7 <script src="../../../resources/js-test-pre.js"></script>

	8 <script src="../../resources/webgl-test.js"> </script>

	9 <script src="../../resources/webgl-test-utils.js"> </script>

	10 </head>

	11 <body>

	12 <canvas id="example" width="50" height="50">

	13 There is supposed to be an example drawing here, but it's not important.

	14 </canvas>

	15 <div id="description">Verify limits on the lengths of attribute locations per We bGL spec, "Maximum Uniform and Attribute Location Lengths".</div>

	16 <div id="console"></div>

	17 <script id="goodVertexShader" type="x-shader/x-vertex">

	18 // A vertex shader where the needed attrib location is exactly 256 characters.

	19 attribute vec4 vPosition01234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 6789012345678901234567890123456;

	20

	21 void main()

	22 {

	23 gl_Position = vPosition01234567890123456789012345678901234567890123456789012 34567890123456789012345678901234567890123456789012345678901234567890123456789012 34567890123456789012345678901234567890123456789012345678901234567890123456789012 3456789012345678901234567890123456;

	24 }

	25 </script>

	26 <script id="badVertexShader" type="x-shader/x-vertex">

	27 // A vertex shader where the needed attrib location is 257 characters.

	28 attribute vec4 vPosition01234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567;

	29

	30 void main()

	31 {

	32 gl_Position = vPosition01234567890123456789012345678901234567890123456789012 34567890123456789012345678901234567890123456789012345678901234567890123456789012 34567890123456789012345678901234567890123456789012345678901234567890123456789012 34567890123456789012345678901234567;

	33 }

	34 </script>

	35 <script id="fragmentShader" type="x-shader/x-fragment">

	36 precision mediump float;

	37

	38 void main() {

	39 gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);

	40 }

	41 </script>

	42 <script>

	43 if (window.initNonKhronosFramework) {

	44 window.initNonKhronosFramework(false);

	45 }

	46 description("test attrib location length limit");

	47

	48 var wtu = WebGLTestUtils;

	49 var gl = wtu.create3DContext(document.getElementById("example"));

	50

	51 debug("Test attrib location underneath the length limit");

	52 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader" );

	53 shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true');

	54 var attribLoc = gl.getAttribLocation(program, "vPosition012345678901234567890123 45678901234567890123456789012345678901234567890123456789012345678901234567890123 45678901234567890123456789012345678901234567890123456789012345678901234567890123 456789012345678901234567890123456789012345678901234567890123456");

	55 if (attribLoc == -1) {

	56 testFailed("attrib location was -1, should not be");

	57 } else {

	58 testPassed("attrib location should not be -1");

	59 }

	60 wtu.glErrorShouldBe(gl, gl.NONE);

	61

	62 debug("Test attrib location over the length limit");

	63 debug("Shader compilation or link should fail");

	64 shouldBe('wtu.loadProgramFromScriptExpectError(gl, "badVertexShader", "fragmentS hader")', 'null');

	65 wtu.glErrorShouldBe(gl, gl.NONE);

	66

	67 debug("Attempt to bind too-long attrib location should produce error");

	68 program = gl.createProgram();

	69 gl.bindAttribLocation(program, 0, "vPosition012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 67890123456789012345678901234567890123456789012345678901234567890123456789012345 6789012345678901234567890123456789012345678901234567");

	70 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

	71

	72 debug("Attempt to fetch too-long attrib location should produce error");

	73 program = wtu.loadStandardProgram(gl);

	74 shouldBe('gl.getAttribLocation(program, "vPosition012345678901234567890123456789 01234567890123456789012345678901234567890123456789012345678901234567890123456789 01234567890123456789012345678901234567890123456789012345678901234567890123456789 0123456789012345678901234567890123456789012345678901234567")', '-1');

	75 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE);

	76

	77 successfullyParsed = true;

	78 </script>

	79 <script src="../../../resources/js-test-post.js"></script>

	80 </body>

	81 </html>

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