mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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233 lines
7.0 KiB
HTML
233 lines
7.0 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 pos;
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attribute vec4 colorIn;
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varying vec4 color;
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void main()
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{
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color = colorIn;
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gl_Position = vec4(pos.xyz, 1.0);
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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 highp float;
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#endif
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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>
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<script>
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var successfullyParsed = false;
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// These four declarations need to be global for "shouldBe" to see them
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var webGL = null;
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var contextAttribs = null;
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var pixel = [0, 0, 0, 1];
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var correctColor = null;
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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 WebGLContextAttributes are working as specified, including alpha, depth, stencil, antialias, but not premultipliedAlpha');
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runTest();
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}
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function getWebGL(canvasName, contextAttribs, clearColor, clearDepth, clearStencil)
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{
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var context = initWebGL(canvasName, "vshader", "fshader", ["pos", "colorIn"], clearColor, clearDepth, contextAttribs);
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if (context) {
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context.clearStencil(clearStencil);
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context.enable(context.STENCIL_TEST);
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context.disable(context.BLEND);
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context.clear(context.COLOR_BUFFER_BIT | context.DEPTH_BUFFER_BIT | context.STENCIL_BUFFER_BIT);
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}
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return context;
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}
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function drawAndReadPixel(gl, vertices, colors, x, y)
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{
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var colorOffset = 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, colorOffset + colors.byteLength, gl.STATIC_DRAW);
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gl.bufferSubData(gl.ARRAY_BUFFER, 0, vertices);
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gl.bufferSubData(gl.ARRAY_BUFFER, colorOffset, colors);
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gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
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gl.enableVertexAttribArray(0);
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gl.vertexAttribPointer(1, 4, gl.UNSIGNED_BYTE, true, 0, colorOffset);
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gl.enableVertexAttribArray(1);
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gl.drawArrays(gl.TRIANGLES, 0, vertices.length / 3);
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var buf = new Uint8Array(1 * 1 * 4);
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gl.readPixels(x, y, 1, 1, gl.RGBA, gl.UNSIGNED_BYTE, buf);
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return buf;
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}
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function testAlpha(alpha)
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{
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debug("Testing alpha = " + alpha);
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if (alpha)
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shouldBeNonNull("webGL = getWebGL('alphaOn', { alpha: true, depth: false, stencil: false, antialias: false }, [ 0, 0, 0, 0 ], 1, 0)");
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else
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shouldBeNonNull("webGL = getWebGL('alphaOff', { alpha: false, depth: false, stencil: false, antialias: false }, [ 0, 0, 0, 0 ], 1, 0)");
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shouldBeNonNull("contextAttribs = webGL.getContextAttributes()");
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var buf = new Uint8Array(1 * 1 * 4);
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webGL.readPixels(0, 0, 1, 1, webGL.RGBA, webGL.UNSIGNED_BYTE, buf);
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pixel[0] = buf[0];
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pixel[1] = buf[1];
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pixel[2] = buf[2];
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pixel[3] = buf[3];
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correctColor = (contextAttribs.alpha ? [0, 0, 0, 0] : [0, 0, 0, 255]);
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shouldBe("pixel", "correctColor");
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}
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function testDepth(depth)
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{
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debug("Testing depth = " + depth);
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if (depth)
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shouldBeNonNull("webGL = getWebGL('depthOn', { stencil: false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)");
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else
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shouldBeNonNull("webGL = getWebGL('depthOff', { depth: false, stencil: false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)");
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shouldBeNonNull("contextAttribs = webGL.getContextAttributes()");
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webGL.depthFunc(webGL.NEVER);
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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 colors = new Uint8Array([
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255]);
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var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0);
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pixel[0] = buf[0];
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pixel[1] = buf[1];
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pixel[2] = buf[2];
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pixel[3] = buf[3];
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correctColor = (contextAttribs.depth ? [0, 0, 0, 255] : [255, 0, 0, 255]);
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shouldBe("pixel", "correctColor");
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}
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function testStencil(stencil)
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{
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debug("Testing stencil = " + stencil);
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if (stencil)
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shouldBeNonNull("webGL = getWebGL('stencilOn', { depth: false, stencil: true, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)");
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else
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shouldBeNonNull("webGL = getWebGL('stencilOff', { depth: false, stencil: false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)");
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shouldBeNonNull("contextAttribs = webGL.getContextAttributes()");
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webGL.depthFunc(webGL.ALWAYS);
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webGL.stencilFunc(webGL.NEVER, 1, 1);
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webGL.stencilOp(webGL.KEEP, webGL.KEEP, webGL.KEEP);
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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 colors = new Uint8Array([
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255]);
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var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0);
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pixel[0] = buf[0];
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pixel[1] = buf[1];
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pixel[2] = buf[2];
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pixel[3] = buf[3];
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correctColor = (contextAttribs.stencil ? [0, 0, 0, 255] : [255, 0, 0, 255]);
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shouldBe("pixel", "correctColor");
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}
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function testAntialias(antialias)
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{
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debug("Testing antialias = " + antialias);
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if (antialias)
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shouldBeNonNull("webGL = getWebGL('antialiasOn', { depth: false, stencil: false, alpha: false, antialias: true }, [ 0, 0, 0, 1 ], 1, 0)");
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else
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shouldBeNonNull("webGL = getWebGL('antialiasOff', { depth: false, stencil: false, alpha: false, antialias: false }, [ 0, 0, 0, 1 ], 1, 0)");
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shouldBeNonNull("contextAttribs = webGL.getContextAttributes()");
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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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var colors = new Uint8Array([
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255, 0, 0, 255,
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255, 0, 0, 255,
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255, 0, 0, 255]);
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var buf = drawAndReadPixel(webGL, vertices, colors, 0, 0);
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pixel[0] = buf[0];
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shouldBe("pixel[0] != 255 && pixel[0] != 0", "contextAttribs.antialias");
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}
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function runTest()
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{
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testAlpha(true);
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testAlpha(false);
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testDepth(true);
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testDepth(false);
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testStencil(true);
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testStencil(false);
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testAntialias(true);
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testAntialias(false);
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finishTest()
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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="alphaOn" width="1px" height="1px"></canvas>
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<canvas id="alphaOff" width="1px" height="1px"></canvas>
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<canvas id="depthOn" width="1px" height="1px"></canvas>
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<canvas id="depthOff" width="1px" height="1px"></canvas>
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<canvas id="stencilOn" width="1px" height="1px"></canvas>
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<canvas id="stencilOff" width="1px" height="1px"></canvas>
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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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