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| |
| /* |
| ** Copyright (c) 2012 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 |
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| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
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| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Out Of Resources Test</title> |
| <link rel="stylesheet" href="../resources/js-test-style.css"/> |
| <script src="../../debug/webgl-debug.js"></script> |
| <script src="../resources/js-test-pre.js"></script> |
| <script src="../conformance/resources/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| <canvas id="canvas" width="2" height="2"> </canvas> |
| <canvas id="canvas2" width="2" height="2"> </canvas> |
| <script> |
| "use strict"; |
| wtu = WebGLTestUtils; |
| window.onload = init; |
| debug("Tests a WebGL program that tries to use all of vram."); |
| |
| function init() { |
| if (confirm( |
| "After clicking OK your machine may become unresponsive or crash.")) { |
| main(); |
| } else { |
| debug("cancelled"); |
| } |
| } |
| |
| function main() { |
| debug(""); |
| debug("Canvas.getContext"); |
| |
| var gl = wtu.create3DContext("canvas"); |
| if (!gl) { |
| testFailed("context does not exist"); |
| } else { |
| testPassed("context exists"); |
| |
| var program = wtu.setupColorQuad(gl); |
| gl.useProgram(program); |
| |
| debug(""); |
| debug("Checking for out of memory handling."); |
| |
| var size = gl.getParameter(gl.MAX_RENDERBUFFER_SIZE); |
| debug("max render buffer size: " + size); |
| |
| var allocateFramebuffers = true; |
| var itervalId; |
| var count = 0; |
| |
| gl = WebGLDebugUtils.makeDebugContext(gl, function(err, functionName, args) { |
| assertMsg(err == gl.OUT_OF_MEMORY, |
| "correctly returns gl.OUT_OF_MEMORY when out of memory"); |
| stop("got: " + wtu.glEnumToString(gl, err)); |
| }); |
| |
| var fbos = []; |
| |
| intervalId = window.setInterval(function() { |
| ++count; |
| var mem = count * size * size * 4; |
| debug("#" + count + " : memory allocated so far " + (mem / 1024 / 1024) + "MB"); |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| 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.texImage2D(gl.TEXTURE_2D, |
| 0, // level |
| gl.RGBA, // internalFormat |
| size, // width |
| size, // height |
| 0, // border |
| gl.RGBA, // format |
| gl.UNSIGNED_BYTE, // type |
| null); // data |
| var err = gl.getError(); |
| if (err != gl.NO_ERROR) { |
| stop("got error: " + wtu.glEnumToString(gl, err)); |
| return; |
| } |
| if (allocateFramebuffers) { |
| var fb = gl.createFramebuffer(); |
| gl.bindFramebuffer(gl.FRAMEBUFFER, fb); |
| gl.framebufferTexture2D( |
| gl.FRAMEBUFFER, |
| gl.COLOR_ATTACHMENT0, |
| gl.TEXTURE_2D, |
| tex, |
| 0); |
| var status = gl.checkFramebufferStatus(gl.FRAMEBUFFER); |
| if (status != gl.FRAMEBUFFER_COMPLETE) { |
| stop("got: " + wtu.glEnumToString(gl, status)); |
| return; |
| } |
| // use the framebuffer |
| wtu.drawFloatColorQuad(gl, [1, Math.random(), 1, 1]); |
| } |
| }, 200); |
| |
| function stop(msg) { |
| debug(msg); |
| window.clearInterval(intervalId); |
| finish(); |
| } |
| |
| } |
| |
| function finish() { |
| debug(""); |
| var successfullyParsed = true; |
| } |
| } |
| </script> |
| </body> |
| </html> |
