mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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196 lines
5.4 KiB
HTML
196 lines
5.4 KiB
HTML
<!--
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Copyright (c) 2010 The Chromium Authors. All rights reserved.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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-->
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<html>
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<head>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/js-test-pre.js"></script>
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<script src="resources/webgl-test.js"></script>
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<script id="vshader" type="x-shader/x-vertex">
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attribute vec3 g_Position;
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attribute vec2 g_TexCoord0;
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varying vec2 texCoord;
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void main()
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{
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gl_Position = vec4(g_Position.x, g_Position.y, g_Position.z, 1.0);
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texCoord = g_TexCoord0;
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}
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</script>
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<script id="fshader" type="x-shader/x-fragment">
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#ifdef GL_ES
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precision mediump float;
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#endif
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uniform sampler2D tex;
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varying vec2 texCoord;
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void main()
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{
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gl_FragColor = texture2D(tex, texCoord);
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}
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</script>
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<script>
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var successfullyParsed = false;
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function init()
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{
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if (window.initNonKhronosFramework) {
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window.initNonKhronosFramework(true);
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}
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description('Verify copyTexImage2D and copyTexSubImage2D');
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runTest();
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}
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// These two declarations need to be global for "shouldBe" to see them
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var pixel = [0, 0, 0];
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var correctColor = null;
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var gl = null;
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function runTestIteration(antialias)
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{
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if (antialias)
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gl = initWebGL("antialiasOn", "vshader", "fshader", [ "g_Position", "g_TexCoord0" ], [ 0, 0, 0, 1 ], 1);
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else
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gl = initWebGL("antialiasOff", "vshader", "fshader", [ "g_Position", "g_TexCoord0" ], [ 0, 0, 0, 1 ], 1, { antialias: false });
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var textureLoc = gl.getUniformLocation(gl.program, "tex");
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var vertices = new Float32Array([
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1.0, 1.0, 0.0,
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-1.0, 1.0, 0.0,
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-1.0, -1.0, 0.0,
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1.0, 1.0, 0.0,
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-1.0, -1.0, 0.0,
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1.0, -1.0, 0.0]);
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var texCoords = new Float32Array([
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1.0, 1.0,
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0.0, 1.0,
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0.0, 0.0,
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1.0, 1.0,
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0.0, 0.0,
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1.0, 0.0]);
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var texCoordOffset = vertices.byteLength;
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var vbo = gl.createBuffer();
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gl.bindBuffer(gl.ARRAY_BUFFER, vbo);
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gl.bufferData(gl.ARRAY_BUFFER,
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texCoordOffset + texCoords.byteLength,
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gl.STATIC_DRAW);
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gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);
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gl.bufferSubData(gl.ARRAY_BUFFER, texCoordOffset, texCoords);
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gl.enableVertexAttribArray(0);
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gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
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gl.enableVertexAttribArray(1);
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gl.vertexAttribPointer(1, 2, gl.FLOAT, gl.FALSE, 0, texCoordOffset);
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gl.colorMask(1, 1, 1, 0);
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gl.disable(gl.BLEND);
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debug('Testing copyTexImage2D');
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// Red canvas
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gl.clearColor(1, 0, 0, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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var texture = gl.createTexture();
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// Bind the texture to texture unit 0
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gl.bindTexture(gl.TEXTURE_2D, texture);
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// Set up texture
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gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
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gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
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glErrorShouldBe(gl, gl.NO_ERROR);
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gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, 2, 2, 0);
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glErrorShouldBe(gl, gl.NO_ERROR);
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// Green canvas
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gl.clearColor(0, 1, 0, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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// Point the uniform sampler to texture unit 0
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gl.uniform1i(textureLoc, 0);
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// Draw the triangles
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gl.drawArrays(gl.TRIANGLES, 0, 6);
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// Read back the rendering results, should be red
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var buf = new Uint8Array(2 * 2 * 4);
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gl.readPixels(0, 0, 2, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf);
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var idx = 0;
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correctColor = [255, 0, 0];
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for (var y = 0; y < 2; y++) {
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for (var x = 0; x < 2; x++) {
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idx = (y * 2 + x) * 4;
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pixel[0] = buf[idx];
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pixel[1] = buf[idx + 1];
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pixel[2] = buf[idx + 2];
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shouldBe("pixel", "correctColor");
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}
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}
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debug('Testing copyTexSubImage2D');
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// Green canvas
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gl.clearColor(0, 1, 0, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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glErrorShouldBe(gl, gl.NO_ERROR);
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gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, 0, 0, 2, 2);
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glErrorShouldBe(gl, gl.NO_ERROR);
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// Blue canvas
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gl.clearColor(0, 0, 1, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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// Draw the triangles
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gl.drawArrays(gl.TRIANGLES, 0, 6);
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// Read back the rendering results, should be green
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gl.readPixels(0, 0, 2, 2, gl.RGBA, gl.UNSIGNED_BYTE, buf);
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correctColor = [0, 255, 0];
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for (var y = 0; y < 2; y++) {
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for (var x = 0; x < 2; x++) {
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idx = (y * 2 + x) * 4;
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pixel[0] = buf[idx];
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pixel[1] = buf[idx + 1];
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pixel[2] = buf[idx + 2];
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shouldBe("pixel", "correctColor");
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}
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}
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}
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function runTest(antialias)
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{
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debug("Testing with antialias on");
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runTestIteration(true);
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debug("Testing with antialias off");
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runTestIteration(false);
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successfullyParsed = true;
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var epilogue = document.createElement("script");
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epilogue.onload = finish;
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epilogue.src = "../resources/js-test-post.js";
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document.body.appendChild(epilogue);
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}
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function finish() {
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if (window.nonKhronosFrameworkNotifyDone) {
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window.nonKhronosFrameworkNotifyDone();
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}
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}
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</script>
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</head>
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<body onload="init()">
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<canvas id="antialiasOn" width="2px" height="2px"></canvas>
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<canvas id="antialiasOff" width="2px" height="2px"></canvas>
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<div id="description"></div>
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<div id="console"></div>
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</body>
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</html>
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