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Unified Diff: conformance/textures/tex-sub-image-2d.html

Issue 8342021: Add webgl conformance tests r15841. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/webgl/sdk/tests/
Patch Set: Created 9 years, 2 months ago
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Index: conformance/textures/tex-sub-image-2d.html
===================================================================
--- conformance/textures/tex-sub-image-2d.html (revision 0)
+++ conformance/textures/tex-sub-image-2d.html (revision 0)
@@ -0,0 +1,100 @@
+<!--
+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>
+<meta charset="utf-8">
+<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>
+<script id="fshader" type="x-shader/x-fragment">
+precision mediump float;
+
+uniform sampler2D tex;
+varying vec2 texCoord;
+
+void main()
+{
+ float intensity = texture2D(tex, texCoord).a;
+ gl_FragColor = vec4(intensity, intensity, intensity, 1.0);
+}
+</script>
+
+</head>
+<body>
+<canvas id="example" width="256px" height="1px"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+description('Tests texSubImage2D upload path from Uint8Array');
+
+var wtu = WebGLTestUtils;
+var canvas = document.getElementById("example");
+var gl = wtu.create3DContext(canvas);
+var program = wtu.setupProgram(
+ gl,
+ [wtu.setupSimpleTextureVertexShader(gl),
+ wtu.loadShaderFromScript(gl, "fshader")],
+ ['vPosition', 'texCoord0']);
+wtu.setupUnitQuad(gl);
+var textureWidth = 256;
+var textureHeight = 1;
+
+textureLoc = gl.getUniformLocation(program, "tex");
+
+var texture = gl.createTexture();
+gl.bindTexture(gl.TEXTURE_2D, texture);
+gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+// Allocate the texture object
+gl.texImage2D(gl.TEXTURE_2D, 0, gl.ALPHA, textureWidth, textureHeight, 0, gl.ALPHA, gl.UNSIGNED_BYTE, null);
+// Prepare the image data
+var array = new Uint8Array(textureWidth);
+for (var i = 0; i < textureWidth; i++)
+ array[i] = i;
+// Fill the texture object with data -- this is actually the code path being tested
+gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, textureWidth, textureHeight, gl.ALPHA, gl.UNSIGNED_BYTE, array);
+
+// Clear and set up
+gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+gl.bindTexture(gl.TEXTURE_2D, texture);
+gl.useProgram(program);
+gl.uniform1i(textureLoc, 0);
+// Draw the texture to the frame buffer
+gl.drawArrays(gl.TRIANGLES, 0, 6);
+
+// Read back the frame buffer
+var buf = new Uint8Array(textureWidth * textureHeight * 4);
+gl.readPixels(0, 0, textureWidth, textureHeight, gl.RGBA, gl.UNSIGNED_BYTE, buf);
+
+// Verify the frame buffer's contents
+var passed = true;
+for (var i = 0; i < textureWidth; i++) {
+ var val = i;
+ if (buf[4 * i + 0] != val ||
+ buf[4 * i + 1] != val ||
+ buf[4 * i + 2] != val) {
+ testFailed("pixel at (" + i + ", 0) was (" +
+ buf[4 * i + 0] + ", " +
+ buf[4 * i + 1] + ", " +
+ buf[4 * i + 2] + "), should be (" +
+ val + ", " + val + ", " + val + ")");
+ passed = false;
+ break;
+ }
+}
+
+if (passed)
+ testPassed("");
+
+successfullyParsed = true;
+</script>
+<script src="../../resources/js-test-post.js"></script>
+</body>
+</html>
Property changes on: conformance/textures/tex-sub-image-2d.html
___________________________________________________________________
Added: svn:eol-style
+ LF
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