LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/glsl/misc/large-loop-compile.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2012 The Khronos Group Inc.
 **
 ** Permission is hereby granted, free of charge, to any person obtaining a
 ** copy of this software and/or associated documentation files (the
 ** "Materials"), to deal in the Materials without restriction, including
 ** without limitation the rights to use, copy, modify, merge, publish,
 ** distribute, sublicense, and/or sell copies of the Materials, and to
 ** permit persons to whom the Materials are furnished to do so, subject to
 ** the following conditions:
 **
 ** The above copyright notice and this permission notice shall be included
 ** in all copies or substantial portions of the Materials.
 **
 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
 */

 -->

 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance 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>
 <div id="description"></div>
 <div id="console"></div>
 <script id="vertexShader" type="text/something-not-javascript">
 attribute vec2 position;

 void main(){
     gl_Position = vec4(position, 0.0, 1.0);
 }
 </script>
 <script id="fragmentShader" type="text/something-not-javascript">
 precision mediump float;
 uniform sampler2D source;

 mat3 front = mat3(
      1.0,  0.0,  0.0,
      0.0,  1.0,  0.0,
      0.0,  0.0,  1.0
 );

 mat3 back = mat3(
     -1.0,  0.0,  0.0,
      0.0,  1.0,  0.0,
      0.0,  0.0, -1.0
 );

 mat3 left = mat3(
      0.0,  0.0, -1.0,
      0.0,  1.0,  0.0,
      1.0,  0.0,  0.0
 );

 mat3 right = mat3(
      0.0,  0.0,  1.0,
      0.0,  1.0,  0.0,
     -1.0,  0.0,  0.0
 );

 mat3 up = mat3(
      1.0,  0.0,  0.0,
      0.0,  0.0,  1.0,
      0.0, -1.0,  0.0
 );

 mat3 down = mat3(
      1.0,  0.0,  0.0,
      0.0,  0.0, -1.0,
      0.0,  1.0,  0.0
 );

 float coefficient(vec3 normal){
     int index = int(gl_FragCoord.x);
     float x = normal.x;
     float y = normal.y;
     float z = normal.z;

     if(index==0){
         return 1.0;
     }
     else if(index==1){
         return y;
     }
     else if(index==2){
         return z;
     }
     else if(index==3){
         return x;
     }
     else if(index==4){
         return x*y;
     }
     else if(index==5){
         return y*z;
     }
     else if(index==6){
         return 3.0*z*z - 1.0;
     }
     else if(index==7){
         return x*z;
     }
     else{
         return x*x - y*y;
     }
 }

 vec3 sample(float cidx, mat3 side){
     vec3 result = vec3(0.0);
     float divider = 0.0;

     for(int i=0; i<256; i++){
         float x = mod(float(i), 16.0);
         float y = float(i/16);
         vec2 texcoord = (vec2(x+cidx*16.0, y+floor(gl_FragCoord.y)*16.0)+0.5)/6.0;
         vec2 sidecoord = ((vec2(x,y)+vec2(0.5, 0.5))/vec2(16.0))*2.0-1.0;
         vec3 normal = normalize(vec3(sidecoord, -1.0));
         vec3 texel = texture2D(source, texcoord).rgb;
         result += coefficient(side*normal) * texel * -normal.z;
         divider += -normal.z;
     }
     return result/divider;
 }

 void main(){
     vec3 result = (
         //sample(0.0, front) +
         //sample(1.0, back) +
         sample(2.0, left) +
         sample(3.0, right) +
         sample(4.0, up) +
         sample(5.0, down)
     )/6.0;
     gl_FragColor = vec4(result, 1.0);
 }
 </script>
 <script>
 "use strict";
 var receivedContextLost = false;
 description("Ensures that compilation of a large loop completes in a reasonable period of time and does not cause the WebGL context to be lost");
 var wtu = WebGLTestUtils;
 var canvas = document.createElement('canvas');
 canvas.width = 32;
 canvas.height = 32;
 canvas.addEventListener("webglcontextlost", function(e) {
   testFailed("context was lost during shader compilation or linking");
   receivedContextLost = true;
 });
 var gl = wtu.create3DContext(canvas);
 if (!gl) {
   testFailed("context does not exist");
   finishTest();
 } else {
   var startTime = Date.now();
   wtu.setupProgram(gl, ["vertexShader", "fragmentShader"], undefined, undefined, true);
   gl.clearColor(0.0, 1.0, 0.0, 1.0);
   gl.clear(gl.COLOR_BUFFER_BIT);
   wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0);
   var endTime = Date.now();

   // Delay for some period to increase chances that context lost event will be delivered.
   setTimeout(function() {
     if (!receivedContextLost) {
       testPassed("Large loop compiled and linked without terminating the WebGL context");
       if (endTime - startTime < 5000) {
         testPassed("Shader compilation completed in a reasonable amount of time");
       } else {
         testFailed("Shader compilation took an unreasonably long time");
       }
     }
     finishTest();
   }, 500);
 }
 var successfullyParsed = true;
 </script>
 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2012 The Khronos Group Inc.
	**
	** Permission is hereby granted, free of charge, to any person obtaining a
	** copy of this software and/or associated documentation files (the
	** "Materials"), to deal in the Materials without restriction, including
	** without limitation the rights to use, copy, modify, merge, publish,
	** distribute, sublicense, and/or sell copies of the Materials, and to
	** permit persons to whom the Materials are furnished to do so, subject to
	** the following conditions:
	**
	** The above copyright notice and this permission notice shall be included
	** in all copies or substantial portions of the Materials.
	**
	** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
	*/

	-->

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>WebGL GLSL Conformance 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>
	<div id="description"></div>
	<div id="console"></div>
	<script id="vertexShader" type="text/something-not-javascript">
	attribute vec2 position;

	void main(){
	gl_Position = vec4(position, 0.0, 1.0);
	}
	</script>
	<script id="fragmentShader" type="text/something-not-javascript">
	precision mediump float;
	uniform sampler2D source;

	mat3 front = mat3(
	1.0, 0.0, 0.0,
	0.0, 1.0, 0.0,
	0.0, 0.0, 1.0
	);

	mat3 back = mat3(
	-1.0, 0.0, 0.0,
	0.0, 1.0, 0.0,
	0.0, 0.0, -1.0
	);

	mat3 left = mat3(
	0.0, 0.0, -1.0,
	0.0, 1.0, 0.0,
	1.0, 0.0, 0.0
	);

	mat3 right = mat3(
	0.0, 0.0, 1.0,
	0.0, 1.0, 0.0,
	-1.0, 0.0, 0.0
	);

	mat3 up = mat3(
	1.0, 0.0, 0.0,
	0.0, 0.0, 1.0,
	0.0, -1.0, 0.0
	);

	mat3 down = mat3(
	1.0, 0.0, 0.0,
	0.0, 0.0, -1.0,
	0.0, 1.0, 0.0
	);

	float coefficient(vec3 normal){
	int index = int(gl_FragCoord.x);
	float x = normal.x;
	float y = normal.y;
	float z = normal.z;

	if(index==0){
	return 1.0;
	}
	else if(index==1){
	return y;
	}
	else if(index==2){
	return z;
	}
	else if(index==3){
	return x;
	}
	else if(index==4){
	return x*y;
	}
	else if(index==5){
	return y*z;
	}
	else if(index==6){
	return 3.0zz - 1.0;
	}
	else if(index==7){
	return x*z;
	}
	else{
	return xx - yy;
	}
	}

	vec3 sample(float cidx, mat3 side){
	vec3 result = vec3(0.0);
	float divider = 0.0;

	for(int i=0; i<256; i++){
	float x = mod(float(i), 16.0);
	float y = float(i/16);
	vec2 texcoord = (vec2(x+cidx16.0, y+floor(gl_FragCoord.y)16.0)+0.5)/6.0;
	vec2 sidecoord = ((vec2(x,y)+vec2(0.5, 0.5))/vec2(16.0))*2.0-1.0;
	vec3 normal = normalize(vec3(sidecoord, -1.0));
	vec3 texel = texture2D(source, texcoord).rgb;
	result += coefficient(sidenormal) texel * -normal.z;
	divider += -normal.z;
	}
	return result/divider;
	}

	void main(){
	vec3 result = (
	//sample(0.0, front) +
	//sample(1.0, back) +
	sample(2.0, left) +
	sample(3.0, right) +
	sample(4.0, up) +
	sample(5.0, down)
	)/6.0;
	gl_FragColor = vec4(result, 1.0);
	}
	</script>
	<script>
	"use strict";
	var receivedContextLost = false;
	description("Ensures that compilation of a large loop completes in a reasonable period of time and does not cause the WebGL context to be lost");
	var wtu = WebGLTestUtils;
	var canvas = document.createElement('canvas');
	canvas.width = 32;
	canvas.height = 32;
	canvas.addEventListener("webglcontextlost", function(e) {
	testFailed("context was lost during shader compilation or linking");
	receivedContextLost = true;
	});
	var gl = wtu.create3DContext(canvas);
	if (!gl) {
	testFailed("context does not exist");
	finishTest();
	} else {
	var startTime = Date.now();
	wtu.setupProgram(gl, ["vertexShader", "fragmentShader"], undefined, undefined, true);
	gl.clearColor(0.0, 1.0, 0.0, 1.0);
	gl.clear(gl.COLOR_BUFFER_BIT);
	wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0);
	var endTime = Date.now();

	// Delay for some period to increase chances that context lost event will be delivered.
	setTimeout(function() {
	if (!receivedContextLost) {
	testPassed("Large loop compiled and linked without terminating the WebGL context");
	if (endTime - startTime < 5000) {
	testPassed("Shader compilation completed in a reasonable amount of time");
	} else {
	testFailed("Shader compilation took an unreasonably long time");
	}
	}
	finishTest();
	}, 500);
	}
	var successfullyParsed = true;
	</script>
	</body>
	</html>