| Index: conformance/limits/gl-min-uniforms.html
|
| ===================================================================
|
| --- conformance/limits/gl-min-uniforms.html (revision 0)
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| +++ conformance/limits/gl-min-uniforms.html (revision 0)
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| @@ -0,0 +1,112 @@
|
| +<!--
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| +Copyright (c) 2011 The Chromium Authors. All rights reserved.
|
| +Use of this source code is governed by a BSD-style license that can be
|
| +found in the LICENSE file.
|
| + -->
|
| +<!DOCTYPE html>
|
| +<html>
|
| +<head>
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| +<meta charset="utf-8">
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| +<title>WebGL the minimum number of uniforms are supported.</title>
|
| +<link rel="stylesheet" href="../../resources/js-test-style.css"/>
|
| +<script src="../../resources/js-test-pre.js"></script>
|
| +<script src="../resources/webgl-test.js"> </script>
|
| +<script src="../resources/webgl-test-utils.js"> </script>
|
| +</head>
|
| +<body>
|
| +<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
|
| +<div id="description"></div>
|
| +<div id="console"></div>
|
| +<script id="vshader" type="x-shader/x-vertex">
|
| +#define NUM_UNIFORMS 128 // See spec
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| +attribute vec4 vPosition;
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| +uniform vec4 uni[NUM_UNIFORMS];
|
| +varying vec4 color;
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| +void main()
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| +{
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| + gl_Position = vPosition;
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| + vec4 c = vec4(0,0,0,0);
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| + for (int ii = 0; ii < NUM_UNIFORMS; ++ii) {
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| + c += uni[ii];
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| + }
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| + color = c;
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| +}
|
| +</script>
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| +
|
| +<script id="fshader" type="x-shader/x-fragment">
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| +precision mediump float;
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| +varying vec4 color;
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| +void main()
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| +{
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| + gl_FragColor = color;
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| +}
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| +</script>
|
| +<script id="vshader2" type="x-shader/x-vertex">
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| +attribute vec4 vPosition;
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| +void main()
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| +{
|
| + gl_Position = vPosition;
|
| +}
|
| +</script>
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| +
|
| +<script id="fshader2" type="x-shader/x-fragment">
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| +precision mediump float;
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| +#define NUM_UNIFORMS 16 // See spec
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| +uniform vec4 uni[NUM_UNIFORMS];
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| +void main()
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| +{
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| + vec4 c = vec4(0,0,0,0);
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| + for (int ii = 0; ii < NUM_UNIFORMS; ++ii) {
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| + c += uni[ii];
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| + }
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| + gl_FragColor = vec4(c.r, c.g, c.b, c.a / 120.0);
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| +}
|
| +</script>
|
| +<script>
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| +var wtu = WebGLTestUtils;
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| +var canvas = document.getElementById("example");
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| +var gl = wtu.create3DContext(canvas);
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| +var program = wtu.setupTexturedQuad(gl);
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| +
|
| +//------------------------------------------------------------------------------
|
| +var program = wtu.setupProgram(
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| + gl,
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| + [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
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| + wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
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| + ['vPosition'], [0]);
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| +
|
| +for (var ii = 0; ii < 128; ++ii) {
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| + var loc = gl.getUniformLocation(program, "uni[" + ii + "]");
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| + gl.uniform4f(loc, 2/256, 2/512, 2/1024, ii/8128);
|
| +}
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| +
|
| +wtu.drawQuad(gl);
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| +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
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| +wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [255, 127, 64, 255], "Should render 255,127,64,32 (+/-1)", 1);
|
| +
|
| +//------------------------------------------------------------------------------
|
| +var program = wtu.setupProgram(
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| + gl,
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| + [wtu.loadShaderFromScript(gl, 'vshader2', gl.VERTEX_SHADER),
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| + wtu.loadShaderFromScript(gl, 'fshader2', gl.FRAGMENT_SHADER)],
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| + ['vPosition'], [0]);
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| +
|
| +for (var ii = 0; ii < 16; ++ii) {
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| + var loc = gl.getUniformLocation(program, "uni[" + ii + "]");
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| + gl.uniform4f(loc, 16/2048, 16/1024, 16/512, ii);
|
| +}
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| +
|
| +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
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| +wtu.drawQuad(gl);
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| +glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
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| +wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [32, 64, 127, 255], "Should render 32,64,127,255 (+/-1)", 1);
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| +
|
| +successfullyParsed = true;
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| +
|
| +</script>
|
| +<script src="../../resources/js-test-post.js"></script>
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| +
|
| +</body>
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| +</html>
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| +
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| +
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|
|
| Property changes on: conformance/limits/gl-min-uniforms.html
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
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|
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|
|