bufferData.html (3081B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <!-- 6 Copyright (c) 2019 The Khronos Group Inc. 7 Use of this source code is governed by an MIT-style license that can be 8 found in the LICENSE.txt file. 9 --> 10 <link rel="stylesheet" type="text/css" href="../unit.css" /> 11 <script type="application/javascript" src="../unit.js"></script> 12 <script type="application/javascript" src="../util.js"></script> 13 <script type="application/javascript"> 14 15 Tests.startUnit = function () { 16 var canvas = document.getElementById('gl'); 17 var gl = wrapGLContext(getGLContext(canvas)); 18 var buf = gl.createBuffer(); 19 var ebuf = gl.createBuffer(); 20 gl.bindBuffer(gl.ARRAY_BUFFER, buf); 21 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ebuf); 22 return [gl, buf, ebuf]; 23 } 24 25 Tests.testBufferData = function(gl, buf, ebuf) { 26 var data = [0,0,0,0, 1,0,0,0, 0,1,0,0]; 27 gl.bufferData(gl.ARRAY_BUFFER, 12, gl.STATIC_DRAW); 28 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([]), gl.STATIC_DRAW); 29 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STATIC_DRAW); 30 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4); 31 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STATIC_DRAW); 32 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STREAM_DRAW); 33 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4); 34 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STREAM_DRAW); 35 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.DYNAMIC_DRAW); 36 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4); 37 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.DYNAMIC_DRAW); 38 39 gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.STATIC_DRAW); 40 gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.STREAM_DRAW); 41 gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.DYNAMIC_DRAW); 42 assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*2); 43 throwError(gl, "array bufferSubData"); 44 } 45 Tests.testBufferDataElement = function(gl, buf, ebuf) { 46 var data = [0,0,0,0, 1,0,0,0, 0,1,0,0]; 47 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.STATIC_DRAW); 48 assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STATIC_DRAW); 49 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.STREAM_DRAW); 50 assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STREAM_DRAW); 51 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.DYNAMIC_DRAW); 52 assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_USAGE), gl.DYNAMIC_DRAW); 53 assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_SIZE), 12*2); 54 throwError(gl, "element array bufferSubData"); 55 } 56 57 Tests.endUnit = function(gl, buf, ebuf) { 58 gl.deleteBuffer(buf); 59 gl.deleteBuffer(ebuf); 60 } 61 62 </script> 63 <style>canvas{ position:absolute; }</style> 64 </head><body> 65 <canvas id="gl" width="16" height="16"></canvas> 66 </body></html>