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| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL get error conformance test.</title> |
| <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script src="../resources/webgl-test.js"> </script> |
| <script src="../resources/webgl-test-utils.js"> </script> |
| </head> |
| <body> |
| <canvas id="example" width="1" height="1" style="width: 256px; height: 48px;"></canvas> |
| <div id="description"></div><div id="console"></div> |
| <script> |
| "use strict"; |
| description("Test getError."); |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("example"); |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| |
| gl.enable(desktopGL.ALPHA_TEST); |
| glErrorShouldBe(gl, gl.INVALID_ENUM, "should generate INVALID_ENUM"); |
| gl.viewport(-1, -1, -1, -1); |
| glErrorShouldBe(gl, gl.INVALID_VALUE, "should generate INVALID_VALUE"); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| glErrorShouldBe(gl, gl.INVALID_OPERATION, "should generate INVALID_OPERATION"); |
| |
| // Generate 2 errors of each type for 6 total possible errors. |
| // The OpenGL ES 2.0 spec section 2.5 says the implementation is allowed to |
| // either return the first error or many errors in an unspecied order. |
| gl.viewport(-1, -1, -1, -1); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| gl.enable(desktopGL.ALPHA_TEST); |
| gl.viewport(-1, -1, -1, -1); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGB, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null); |
| // Note: This error is specifically last because we know it will be synthasized |
| // by WebGL at least when implemented on top of Desktop OpenGL |
| gl.enable(desktopGL.ALPHA_TEST); |
| |
| var err1 = gl.getError(); |
| var err2 = gl.getError(); |
| var err3 = gl.getError(); |
| var err4 = gl.getError(); |
| var err5 = gl.getError(); |
| var err6 = gl.getError(); |
| |
| debug(""); |
| if (err2 == gl.NO_ERROR) { |
| debug("This WebGL implementation looks like it uses the 'first error' method"); |
| debug("There should be 1 error, the first one generated"); |
| shouldBeTrue('err1 == gl.INVALID_VALUE && err2 == gl.NO_ERROR && err3 == gl.NO_ERROR'); |
| } else { |
| debug("This WebGL implementation looks like it uses the many error method"); |
| debug("Check is that at least one of the errors is the first error"); |
| shouldBeTrue('err1 == gl.INVALID_VALUE || ' + |
| 'err2 == gl.INVALID_VALUE || ' + |
| 'err3 == gl.INVALID_VALUE || ' + |
| 'err4 == gl.INVALID_VALUE || ' + |
| 'err5 == gl.INVALID_VALUE || ' + |
| 'err6 == gl.INVALID_VALUE'); |
| shouldBeTrue('gl.getError() == gl.NO_ERROR'); |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
| |