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| ** Copyright (c) 2017 The Khronos Group Inc. |
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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL Rendering Stencil large viewport Tests</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../js/js-test-pre.js"></script> |
| <script src="../../js/webgl-test-utils.js"></script> |
| |
| <script id="vs" type="x-shader/x-vertex"> |
| attribute vec4 a_Position; |
| void main() |
| { |
| gl_Position = a_Position; |
| } |
| </script> |
| <script id="fs" type="x-shader/x-fragment"> |
| precision mediump float; |
| uniform vec4 u_draw_color; |
| void main() |
| { |
| gl_FragColor = u_draw_color; |
| } |
| </script> |
| |
| </head> |
| <body> |
| <canvas id="example" width="4" height="4"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| "use strict"; |
| |
| var wtu = WebGLTestUtils; |
| description("This test reproduces a driver bug on Intel windows platforms http://crbug.com/782317."); |
| |
| var gl = wtu.create3DContext("example", {stencil: true}); |
| |
| var program, colorLoc; |
| |
| // Rendering with large viewport and stencil buffer enabled will lead to |
| // memory leak and driver crash on d3d11 driver on Intel platforms. |
| function render_stencil() { |
| var canvas = document.getElementById("example"); |
| gl.uniform4f(colorLoc, 1.0, 0.0, 0.0, 1.0); |
| |
| canvas.width = 32767; |
| canvas.height = 32767; |
| gl.viewport(0, 0, 32767, 32767); |
| |
| gl.enable(gl.STENCIL_TEST); |
| |
| var kStencilRef = 4; |
| gl.stencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE); |
| gl.stencilFunc(gl.ALWAYS, kStencilRef, 0xFF); |
| |
| gl.drawArrays(gl.TRIANGLES, 0, 6); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| wtu.checkCanvasRect(gl, 0, 0, 1, 1, [255, 0, 0, 255], |
| "stencil test should be red"); |
| } |
| |
| if (!gl) { |
| testFailed("WebGL context does not exist"); |
| } else { |
| testPassed("WebGL context exists"); |
| |
| program = wtu.setupProgram(gl, ["vs", "fs"], ["a_Position"]); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "after program initialization"); |
| shouldBe('gl.getProgramParameter(program, gl.LINK_STATUS)', 'true'); |
| |
| colorLoc = gl.getUniformLocation(program, "u_draw_color") |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "query uniform location"); |
| shouldBeNonNull('colorLoc'); |
| wtu.setupUnitQuad(gl, 0); |
| |
| render_stencil(); |
| } |
| |
| var successfullyParsed = true; |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |
