LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance2/samplers/sampler-drawing-test.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2015 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 Sampler Drawing Test</title>
 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
 <script src="../../js/js-test-pre.js"></script>
 <script src="../../js/webgl-test-utils.js"></script>
 </head>
 <body>
 <canvas id="canvas_drawing" width="12" height="12"></canvas>
 <canvas id="canvas_texture" width="2" height="2"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 "use strict";
 description("Tests drawing with sampler works as expected");
 debug("");

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("canvas_drawing", null, 2);
 var canvas_texture = null;
 var samplerParam = [
     gl.REPEAT,
     gl.CLAMP_TO_EDGE,
     gl.MIRRORED_REPEAT,
 ];
 var color = [200, 0, 254, 255];

 if (!gl) {
     testFailed("WebGL context does not exist");
 } else {
     testPassed("WebGL context exists");

     wtu.setupTexturedQuadWithTexCoords(gl, [-2.5, -2.5], [3.5, 3.5]);

     setupCanvasTexture();
     for (var ii = 0; ii < samplerParam.length; ++ii) {
         runDrawingTest(samplerParam[ii]);
     }

     wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
 }

 function setupCanvasTexture() {
     canvas_texture = document.getElementById("canvas_texture");
     var ctx2d = canvas_texture.getContext("2d");
     ctx2d.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";
     ctx2d.fillRect(0, 0, 1, 1);
 }

 function runDrawingTest(param) {
     var texture = gl.createTexture();
     gl.bindTexture(gl.TEXTURE_2D, texture);
     gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas_texture);

     var sampler = gl.createSampler();
     gl.samplerParameteri(sampler, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
     gl.samplerParameteri(sampler, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
     gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_S, param);
     gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_T, param);

     gl.clearColor(1,1,1,1);
     gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);

     gl.bindTexture(gl.TEXTURE_2D, texture);
     gl.bindSampler(0, sampler);
     gl.drawArrays(gl.TRIANGLE_STRIP, 0, 6);

     checkPixels(param);
 }

 function checkPixels(param) {
     var buf = new Uint8Array(12 * 12 * 4);
     gl.readPixels(0, 0, 12, 12, gl.RGBA, gl.UNSIGNED_BYTE, buf);
     var passed = true;
     for (var yy = 0; yy < 12; ++yy) {
         for (var xx = 0; xx < 12; ++xx) {
             var ec = [0, 0, 0, 0];
             switch (param) {
                 case gl.REPEAT:
                     if (xx % 2 == 1 && yy % 2 == 1) {
                         ec = color;
                     }
                     break;
                 case gl.CLAMP_TO_EDGE:
                     if (xx < 6 && yy < 6) {
                         ec = color;
                     }
                     break;
                 case gl.MIRRORED_REPEAT:
                     if (xx % 4 < 2 && yy % 4 < 2) {
                         ec = color;
                     }
                     break;
             }
             var off = (yy * 12 + xx) * 4;
             if (buf[off + 0] != ec[0] || buf[off + 1] != ec[1] ||
                 buf[off + 2] != ec[2] || buf[off + 3] != ec[3]) {
                 var msg = 'at (' + xx + ', ' + yy + ') expected: ' +
                     ec[0] + ', ' + ec[1] + ', ' + ec[2] + ', ' + ec[3] + ' found: ' +
                     buf[off + 0] + ', ' + buf[off + 1] + ', ' + buf[off + 2] + ', ' + buf[off + 3];
                 testFailed(msg);
                 passed = false;
             }
         }
     }
     if (passed) {
         testPassed("Drawing with wrap " + wtu.glEnumToString(gl, param) + " as expected");
     }
 }

 var successfullyParsed = true;
 </script>
 <script src="../../js/js-test-post.js"></script>

 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2015 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 Sampler Drawing Test</title>
	<link rel="stylesheet" href="../../resources/js-test-style.css"/>
	<script src="../../js/js-test-pre.js"></script>
	<script src="../../js/webgl-test-utils.js"></script>
	</head>
	<body>
	<canvas id="canvas_drawing" width="12" height="12"></canvas>
	<canvas id="canvas_texture" width="2" height="2"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	"use strict";
	description("Tests drawing with sampler works as expected");
	debug("");

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("canvas_drawing", null, 2);
	var canvas_texture = null;
	var samplerParam = [
	gl.REPEAT,
	gl.CLAMP_TO_EDGE,
	gl.MIRRORED_REPEAT,
	];
	var color = [200, 0, 254, 255];

	if (!gl) {
	testFailed("WebGL context does not exist");
	} else {
	testPassed("WebGL context exists");

	wtu.setupTexturedQuadWithTexCoords(gl, [-2.5, -2.5], [3.5, 3.5]);

	setupCanvasTexture();
	for (var ii = 0; ii < samplerParam.length; ++ii) {
	runDrawingTest(samplerParam[ii]);
	}

	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "there should be no errors");
	}

	function setupCanvasTexture() {
	canvas_texture = document.getElementById("canvas_texture");
	var ctx2d = canvas_texture.getContext("2d");
	ctx2d.fillStyle = "rgba(" + color[0] + "," + color[1] + "," + color[2] + "," + color[3] + ")";
	ctx2d.fillRect(0, 0, 1, 1);
	}

	function runDrawingTest(param) {
	var texture = gl.createTexture();
	gl.bindTexture(gl.TEXTURE_2D, texture);
	gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, canvas_texture);

	var sampler = gl.createSampler();
	gl.samplerParameteri(sampler, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
	gl.samplerParameteri(sampler, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_S, param);
	gl.samplerParameteri(sampler, gl.TEXTURE_WRAP_T, param);

	gl.clearColor(1,1,1,1);
	gl.clear(gl.COLOR_BUFFER_BIT \| gl.DEPTH_BUFFER_BIT);

	gl.bindTexture(gl.TEXTURE_2D, texture);
	gl.bindSampler(0, sampler);
	gl.drawArrays(gl.TRIANGLE_STRIP, 0, 6);

	checkPixels(param);
	}

	function checkPixels(param) {
	var buf = new Uint8Array(12 * 12 * 4);
	gl.readPixels(0, 0, 12, 12, gl.RGBA, gl.UNSIGNED_BYTE, buf);
	var passed = true;
	for (var yy = 0; yy < 12; ++yy) {
	for (var xx = 0; xx < 12; ++xx) {
	var ec = [0, 0, 0, 0];
	switch (param) {
	case gl.REPEAT:
	if (xx % 2 == 1 && yy % 2 == 1) {
	ec = color;
	}
	break;
	case gl.CLAMP_TO_EDGE:
	if (xx < 6 && yy < 6) {
	ec = color;
	}
	break;
	case gl.MIRRORED_REPEAT:
	if (xx % 4 < 2 && yy % 4 < 2) {
	ec = color;
	}
	break;
	}
	var off = (yy * 12 + xx) * 4;
	if (buf[off + 0] != ec[0] \|\| buf[off + 1] != ec[1] \|\|
	buf[off + 2] != ec[2] \|\| buf[off + 3] != ec[3]) {
	var msg = 'at (' + xx + ', ' + yy + ') expected: ' +
	ec[0] + ', ' + ec[1] + ', ' + ec[2] + ', ' + ec[3] + ' found: ' +
	buf[off + 0] + ', ' + buf[off + 1] + ', ' + buf[off + 2] + ', ' + buf[off + 3];
	testFailed(msg);
	passed = false;
	}
	}
	}
	if (passed) {
	testPassed("Drawing with wrap " + wtu.glEnumToString(gl, param) + " as expected");
	}
	}

	var successfullyParsed = true;
	</script>
	<script src="../../js/js-test-post.js"></script>

	</body>
	</html>