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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<!--
Copyright (c) 2019 The Khronos Group Inc.
Use of this source code is governed by an MIT-style license that can be
found in the LICENSE.txt file.
-->
<link rel="stylesheet" type="text/css" href="../unit.css" />
<script type="application/javascript" src="../unit.js"></script>
<script type="application/javascript" src="../util.js"></script>
<script type="application/javascript">
Tests.startUnit = function () {
var canvas = document.getElementById('gl');
var gl = getGLContext(canvas);
var buf = gl.createBuffer();
var ebuf = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buf);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ebuf);
return [gl, buf, ebuf];
}
Tests.testBufferSubData = function(gl, buf, ebuf) {
var data = [0,0,0,0, 1,0,0,0, 0,1,0,0];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STATIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 32, new Float32Array([1,1,1,1]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STATIC_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STREAM_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.DYNAMIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int8Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint8Array([1,1,1,1]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.DYNAMIC_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, 12, gl.STATIC_DRAW);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STATIC_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, 12*4, gl.STATIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 32, new Float32Array([1,1,1,1]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STATIC_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, 12*4, gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.STREAM_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, 12*4, gl.DYNAMIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Float32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array([1,2,3,4]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int32Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Int8Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint8Array([1,1,1,1]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*4);
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_USAGE), gl.DYNAMIC_DRAW);
gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.STATIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.STREAM_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
gl.bufferData(gl.ARRAY_BUFFER, new Uint16Array(data), gl.DYNAMIC_DRAW);
gl.bufferSubData(gl.ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
assertEquals(gl.getBufferParameter(gl.ARRAY_BUFFER, gl.BUFFER_SIZE), 12*2);
throwError(gl, "array bufferSubData");
}
Tests.testBufferSubDataElement = function(gl, buf, ebuf) {
var data = [0,0,0,0, 1,0,0,0, 0,1,0,0];
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.STATIC_DRAW);
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.STREAM_DRAW);
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(data), gl.DYNAMIC_DRAW);
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 16, new Uint16Array([1,1,1,1]));
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 0, new Uint16Array([1,2,3,4]));
assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_SIZE), 12*2);
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint8Array(data), gl.DYNAMIC_DRAW);
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 4, new Uint8Array([1,1,1,1]));
gl.bufferSubData(gl.ELEMENT_ARRAY_BUFFER, 0, new Uint8Array([1,2,3,4]));
assertEquals(gl.getBufferParameter(gl.ELEMENT_ARRAY_BUFFER, gl.BUFFER_SIZE), 12);
throwError(gl, "element array bufferSubData");
}
Tests.endUnit = function(gl, buf, ebuf) {
gl.deleteBuffer(buf);
gl.deleteBuffer(ebuf);
}
</script>
<style>canvas{ position:absolute; }</style>
</head><body>
<canvas id="gl" width="16" height="16"></canvas>
</body></html>
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