StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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54 lines
1.6 KiB
54 lines
1.6 KiB
4 years ago
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"use strict"
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function doBind(gl, elements, attributes) {
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if(elements) {
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elements.bind()
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} else {
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null)
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}
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var nattribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS)|0
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if(attributes) {
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if(attributes.length > nattribs) {
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throw new Error("gl-vao: Too many vertex attributes")
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}
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for(var i=0; i<attributes.length; ++i) {
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var attrib = attributes[i]
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if(attrib.buffer) {
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var buffer = attrib.buffer
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var size = attrib.size || 4
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var type = attrib.type || gl.FLOAT
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var normalized = !!attrib.normalized
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var stride = attrib.stride || 0
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var offset = attrib.offset || 0
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buffer.bind()
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gl.enableVertexAttribArray(i)
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gl.vertexAttribPointer(i, size, type, normalized, stride, offset)
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} else {
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if(typeof attrib === "number") {
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gl.vertexAttrib1f(i, attrib)
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} else if(attrib.length === 1) {
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gl.vertexAttrib1f(i, attrib[0])
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} else if(attrib.length === 2) {
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gl.vertexAttrib2f(i, attrib[0], attrib[1])
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} else if(attrib.length === 3) {
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gl.vertexAttrib3f(i, attrib[0], attrib[1], attrib[2])
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} else if(attrib.length === 4) {
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gl.vertexAttrib4f(i, attrib[0], attrib[1], attrib[2], attrib[3])
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} else {
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throw new Error("gl-vao: Invalid vertex attribute")
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}
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gl.disableVertexAttribArray(i)
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}
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}
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for(; i<nattribs; ++i) {
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gl.disableVertexAttribArray(i)
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}
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} else {
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gl.bindBuffer(gl.ARRAY_BUFFER, null)
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for(var i=0; i<nattribs; ++i) {
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gl.disableVertexAttribArray(i)
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}
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}
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}
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module.exports = doBind
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