| <!-- |
| /* |
| ** 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 |
| ** 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. |
| */ |
| --> |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <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> |
| </head> |
| <body> |
| <div id="description"></div> |
| <div id="console"></div> |
| |
| <script> |
| "use strict"; |
| description("Tests that index validation verifies the correct number of indices"); |
| |
| function sizeInBytes(type) { |
| switch (type) { |
| case gl.BYTE: |
| case gl.UNSIGNED_BYTE: |
| return 1; |
| case gl.SHORT: |
| case gl.UNSIGNED_SHORT: |
| return 2; |
| case gl.INT: |
| case gl.UNSIGNED_INT: |
| case gl.FLOAT: |
| return 4; |
| default: |
| throw "unknown type"; |
| } |
| } |
| |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext(); |
| var program = wtu.loadStandardProgram(gl); |
| |
| // 3 vertices => 1 triangle, interleaved data |
| var dataComplete = new Float32Array([0, 0, 0, 1, |
| 0, 0, 1, |
| 1, 0, 0, 1, |
| 0, 0, 1, |
| 1, 1, 1, 1, |
| 0, 0, 1]); |
| var dataIncomplete = new Float32Array([0, 0, 0, 1, |
| 0, 0, 1, |
| 1, 0, 0, 1, |
| 0, 0, 1, |
| 1, 1, 1, 1]); |
| var indices = new Uint16Array([0, 1, 2]); |
| |
| debug("Testing with valid indices"); |
| |
| var bufferComplete = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, bufferComplete); |
| gl.bufferData(gl.ARRAY_BUFFER, dataComplete, gl.STATIC_DRAW); |
| var elements = gl.createBuffer(); |
| gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, elements); |
| gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW); |
| gl.useProgram(program); |
| var vertexLoc = gl.getAttribLocation(program, "a_vertex"); |
| var normalLoc = gl.getAttribLocation(program, "a_normal"); |
| gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 0); |
| gl.enableVertexAttribArray(vertexLoc); |
| gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT)); |
| gl.enableVertexAttribArray(normalLoc); |
| shouldBe('gl.checkFramebufferStatus(gl.FRAMEBUFFER)', 'gl.FRAMEBUFFER_COMPLETE'); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| |
| debug("Testing with out-of-range indices"); |
| |
| var bufferIncomplete = gl.createBuffer(); |
| gl.bindBuffer(gl.ARRAY_BUFFER, bufferIncomplete); |
| gl.bufferData(gl.ARRAY_BUFFER, dataIncomplete, gl.STATIC_DRAW); |
| gl.vertexAttribPointer(vertexLoc, 4, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 0); |
| gl.enableVertexAttribArray(vertexLoc); |
| gl.disableVertexAttribArray(normalLoc); |
| debug("Enable vertices, valid"); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| debug("Enable normals, out-of-range"); |
| gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT)); |
| gl.enableVertexAttribArray(normalLoc); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| wtu.glErrorShouldBe(gl, [gl.INVALID_OPERATION, gl.NO_ERROR]); |
| |
| debug("Test with enabled attribute that does not belong to current program"); |
| |
| gl.disableVertexAttribArray(normalLoc); |
| var extraLoc = Math.max(vertexLoc, normalLoc) + 1; |
| gl.enableVertexAttribArray(extraLoc); |
| debug("Enable an extra attribute with null"); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION); |
| debug("Enable an extra attribute with insufficient data buffer"); |
| gl.vertexAttribPointer(extraLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), 4 * sizeInBytes(gl.FLOAT)); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| debug("Pass large negative index to vertexAttribPointer"); |
| gl.vertexAttribPointer(normalLoc, 3, gl.FLOAT, false, 7 * sizeInBytes(gl.FLOAT), -2000000000 * sizeInBytes(gl.FLOAT)); |
| wtu.glErrorShouldBe(gl, gl.INVALID_VALUE); |
| shouldBeUndefined('gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0)'); |
| |
| var successfullyParsed = true; |
| </script> |
| |
| <script src="../../js/js-test-post.js"></script> |
| </body> |
| </html> |
