buffer-data-and-buffer-sub-data-sub-source.html (6567B)
1 <!-- 2 Copyright (c) 2019 The Khronos Group Inc. 3 Use of this source code is governed by an MIT-style license that can be 4 found in the LICENSE.txt file. 5 --> 6 7 <!DOCTYPE html> 8 <html> 9 <head> 10 <meta charset="utf-8"> 11 <link rel="stylesheet" href="../../resources/js-test-style.css"/> 12 <script src="../../js/js-test-pre.js"></script> 13 <script src="../../js/webgl-test-utils.js"></script> 14 </head> 15 <body> 16 <div id="description"></div> 17 <div id="console"></div> 18 19 <script> 20 "use strict"; 21 description("Test bufferData/bufferSubData with ArrayBufferView sub source input"); 22 23 var wtu = WebGLTestUtils; 24 var gl = wtu.create3DContext(undefined, undefined, 2); 25 26 function verifyBufferData(testCase, sourceByteOffset, size, data) { 27 var readbackBuffer = new ArrayBuffer(testCase.size * size); 28 var readbackView = new window[testCase.type](readbackBuffer); 29 gl.getBufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, readbackView); 30 var pass = true; 31 var offset = sourceByteOffset / testCase.size; 32 for (var ii = 0; ii < size; ++ii) { 33 if (readbackView[ii] != data[ii]) { 34 testFailed("expected data at " + ii + ": " + data[ii] + ", got " + readbackView[ii]); 35 pass = false; 36 } 37 } 38 if (pass) { 39 testPassed("buffer data uploaded correctly"); 40 } 41 } 42 43 function bufferDataTest(testCases) { 44 for (var idx = 0; idx < testCases.length; ++idx) { 45 var test = testCases[idx]; 46 debug(""); 47 debug("Test bufferData with " + test.type); 48 49 var buf = gl.createBuffer(); 50 shouldBeNonNull(buf); 51 52 gl.bindBuffer(gl.ARRAY_BUFFER, buf); 53 wtu.glErrorShouldBe(gl, gl.NO_ERROR); 54 55 var count = 4; 56 var arrayBuffer = new ArrayBuffer(test.size * count); 57 var view = new window[test.type](arrayBuffer); 58 for (var ii = 0; ii < count; ++ii) { 59 view[ii] = ii; 60 } 61 62 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, 0, count + 1); 63 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 64 "calling bufferData when srcOffset + length is larger than source size"); 65 66 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, count + 1); 67 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 68 "calling bufferData when srcOffset + length is larger than source size"); 69 70 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, count - 1, 2); 71 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 72 "calling bufferData when srcOffset + length is larger than source size"); 73 74 var offset = 2; 75 var size = count - offset; 76 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, offset); 77 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 78 "calling bufferData with valid sub source should succeed"); 79 verifyBufferData(test, 0, size, view.slice(offset, offset + size)); 80 81 offset = 1; 82 size = 1; 83 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, offset, size); 84 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 85 "calling bufferData with valid sub source should succeed"); 86 verifyBufferData(test, 0, size, view.slice(offset, offset + size)); 87 88 gl.bufferData(gl.ARRAY_BUFFER, view, gl.STATIC_DRAW, count); 89 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 90 "calling bufferData with valid sub source of size 0 should succeed"); 91 92 gl.deleteBuffer(buf); 93 gl.bindBuffer(gl.ARRAY_BUFFER, null); 94 95 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no GL error"); 96 } 97 } 98 99 function bufferSubDataTest(testCases) { 100 for (var idx = 0; idx < testCases.length; ++idx) { 101 var test = testCases[idx]; 102 debug(""); 103 debug("Test bufferSubData with " + test.type); 104 105 var count = 4; 106 var totalBufferBytes = test.size * count * 2; 107 var buf = gl.createBuffer(); 108 shouldBeNonNull(buf); 109 gl.bindBuffer(gl.ARRAY_BUFFER, buf); 110 gl.bufferData(gl.ARRAY_BUFFER, totalBufferBytes, gl.STATIC_DRAW); 111 wtu.glErrorShouldBe(gl, gl.NO_ERROR); 112 113 var arrayBuffer = new ArrayBuffer(test.size * count); 114 var view = new window[test.type](arrayBuffer); 115 for (var ii = 0; ii < count; ++ii) { 116 view[ii] = ii; 117 } 118 119 var sourceByteOffset = test.size * 2; 120 121 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, 0, count + 1); 122 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 123 "calling bufferSubData when srcOffset + length is larger than source size"); 124 125 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, count + 1); 126 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 127 "calling bufferSubData when srcOffset + length is larger than source size"); 128 129 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, count - 1, 2); 130 wtu.glErrorShouldBe(gl, gl.INVALID_VALUE, 131 "calling bufferSubData when srcOffset + length is larger than source size"); 132 133 var offset = 2; 134 var size = count - offset; 135 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, offset); 136 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 137 "calling bufferSubData with valid sub source should succeed"); 138 verifyBufferData(test, sourceByteOffset, size, view.slice(offset, offset + size)); 139 140 offset = 1; 141 size = 1; 142 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, offset, size); 143 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 144 "calling bufferSubData with valid sub source should succeed"); 145 verifyBufferData(test, sourceByteOffset, size, view.slice(offset, offset + size)); 146 147 gl.bufferSubData(gl.ARRAY_BUFFER, sourceByteOffset, view, count); 148 wtu.glErrorShouldBe(gl, gl.NO_ERROR, 149 "calling bufferSubData with valid sub source of size 0 should succeed"); 150 151 gl.deleteBuffer(buf); 152 gl.bindBuffer(gl.ARRAY_BUFFER, null); 153 154 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no GL error"); 155 } 156 } 157 158 if (!gl) { 159 testFailed("WebGL context does not exist"); 160 } else { 161 testPassed("WebGL context exists"); 162 163 var testCases = [ 164 {type: "Uint8Array", size: 1}, 165 {type: "Int8Array", size: 1}, 166 {type: "Int16Array", size: 2}, 167 {type: "Uint16Array", size: 2}, 168 {type: "Uint32Array", size: 4}, 169 {type: "Int32Array", size: 4}, 170 {type: "Float32Array", size: 4}, 171 {type: "Float64Array", size: 8} 172 ]; 173 174 bufferDataTest(testCases); 175 bufferSubDataTest(testCases); 176 } 177 178 var successfullyParsed = true; 179 </script> 180 181 <script src="../../js/js-test-post.js"></script> 182 </body> 183 </html>