| /* |
| ** Copyright (c) 2013 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. |
| */ |
| IterableTest = (function() { |
| |
| var wtu = WebGLTestUtils; |
| |
| function run(test, iterations) { |
| var target = iterations || 10; |
| var count = 0; |
| |
| function doNextTest() { |
| ++count; |
| debug("Test " + count + " of " + target); |
| var success = test(); |
| if (count < target && success !== false) { |
| wtu.waitForComposite(doNextTest); |
| //setTimeout(doNextTest, 100); |
| } else { |
| finishTest(); |
| } |
| } |
| |
| doNextTest(); |
| } |
| |
| // Creates a canvas and a texture then exits. There are |
| // no references to either so both should be garbage collected. |
| function createContextCreationAndDestructionTest() { |
| var textureSize = null; |
| |
| return function() { |
| var canvas = document.createElement("canvas"); |
| // This is safe for any device. See drawingBufferWidth in spec. |
| canvas.width = 2048; |
| canvas.height = 2048; |
| var gl = wtu.create3DContext(canvas); |
| if (textureSize === null) { |
| var maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE); |
| textureSize = Math.min(1024, maxTextureSize); |
| } |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, textureSize, textureSize, 0, gl.RGBA, gl.UNSIGNED_BYTE, |
| null); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); |
| |
| return true; |
| }; |
| } |
| |
| // Creates many small canvases and attaches them to the DOM. |
| // This tests an edge case discovered in Chrome where the creation of multiple |
| // WebGL contexts would eventually lead to context creation failure. |
| // (crbug.com/319265) The test does not require that old contexts remain |
| // valid, only that new ones can be created. |
| function createContextCreationTest() { |
| return function() { |
| var canvas = document.createElement("canvas"); |
| canvas.width = 1; |
| canvas.height = 1; |
| |
| document.body.appendChild(canvas); |
| |
| var gl = wtu.create3DContext(canvas); |
| if (!gl) { |
| return false; |
| } |
| |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); |
| |
| return true; |
| }; |
| } |
| |
| // Draws rectangle on a passed canvas with preserveDrawingBuffer |
| // and antialiasing ON, tests rect color on every iteration. |
| function createMultisampleCorruptionTest(gl) { |
| var lastContext = null; |
| // Allocate a read back buffer in advance and reuse it for all iterations |
| // to avoid memory issues because of late garbage collection. |
| var readBackBuf = new Uint8Array(gl.canvas.width * gl.canvas.height * 4); |
| |
| var program = wtu.loadStandardProgram(gl); |
| var uniforms = wtu.getUniformMap(gl, program); |
| gl.useProgram(program); |
| |
| gl.clearColor(1.0, 0.0, 0.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| |
| var vertexObject = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,2.5,0, 1.5,1.5,0, 2.5,1.5,0 ]), gl.STATIC_DRAW); |
| gl.enableVertexAttribArray(0); |
| gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); |
| gl.vertexAttrib3f(1, 0.0, 0.0, 1.0); |
| |
| var identityMat = new Float32Array([ |
| 1, 0, 0, 0, |
| 0, 1, 0, 0, |
| 0, 0, 1, 0, |
| 0, 0, 0, 1 |
| ]); |
| |
| gl.uniformMatrix4fv(uniforms.u_modelViewProjMatrix.location, false, identityMat); |
| |
| function test() { |
| var gl2 = wtu.create3DContext(null, {antialias: true}); |
| |
| gl2.canvas.width = gl2.canvas.height = 1024; |
| gl2.canvas.style.width = gl2.canvas.style.height = "1px"; |
| document.body.appendChild(gl2.canvas); |
| |
| gl2.clearColor(1.0, 0.0, 0.0, 1.0); |
| gl2.clear(gl2.COLOR_BUFFER_BIT); |
| |
| if(lastContext) { |
| gl.drawArrays(gl.TRIANGLES, 0, 3); |
| var msg = "Canvas should be red"; |
| wtu.checkCanvasRectColor(gl, |
| 0, 0, gl.canvas.width, gl.canvas.height, |
| [255, 0, 0, 255], null, |
| function() { |
| testPassed(msg); |
| }, |
| function() { |
| testFailed(msg); |
| return false; |
| }, |
| debug, readBackBuf); |
| document.body.removeChild(lastContext.canvas); |
| } |
| |
| lastContext = gl2; |
| return true; |
| }; |
| |
| // First pass does initialization |
| test(); |
| |
| return test; |
| } |
| |
| // Draws repeatedly to a large canvas with preserveDrawingBuffer enabled to |
| // try and provoke a context loss. |
| function createPreserveDrawingBufferLeakTest(gl) { |
| var contextActive = true; |
| gl.canvas.addEventListener("webglcontextlost", () => { |
| testFailed("Context was lost"); |
| contextActive = false; |
| }); |
| |
| function test() { |
| var x = Math.random() * gl.drawingBufferWidth; |
| var y = Math.random() * gl.drawingBufferHeight; |
| var width = Math.random() * (gl.drawingBufferWidth - x); |
| var height = Math.random() * (gl.drawingBufferHeight - y); |
| |
| gl.enable(gl.SCISSOR_TEST); |
| gl.scissor(x, y, width, height); |
| gl.clearColor(Math.random(), Math.random(), Math.random(), 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors"); |
| |
| return contextActive; |
| }; |
| |
| return test; |
| } |
| |
| return { |
| run: run, |
| |
| createContextCreationAndDestructionTest: createContextCreationAndDestructionTest, |
| createContextCreationTest: createContextCreationTest, |
| createMultisampleCorruptionTest: createMultisampleCorruptionTest, |
| createPreserveDrawingBufferLeakTest: createPreserveDrawingBufferLeakTest |
| }; |
| |
| })(); |