module.exports = { getTintFromFloats: function (r, g, b, a) { var ur = ((r * 255.0)|0) & 0xFF; var ug = ((g * 255.0)|0) & 0xFF; var ub = ((b * 255.0)|0) & 0xFF; var ua = ((a * 255.0)|0) & 0xFF; return ((ua << 24) | (ur << 16) | (ug << 8) | ub) >>> 0; }, getTintAppendFloatAlpha: function (rgb, a) { var ua = ((a * 255.0)|0) & 0xFF; return ((ua << 24) | rgb) >>> 0; }, getTintAppendFloatAlphaAndSwap: function (rgb, a) { var ur = ((rgb >> 16)|0) & 0xff; var ug = ((rgb >> 8)|0) & 0xff; var ub = (rgb|0) & 0xff; var ua = ((a * 255.0)|0) & 0xFF; return ((ua << 24) | (ub << 16) | (ug << 8) | ur) >>> 0; }, getComponentCount: function (attributes) { var count = 0; for (var index = 0; index < attributes.length; ++index) { var element = attributes[index]; if (element.type === WebGLRenderingContext.FLOAT) { count += element.size; } else { count += 1; // We'll force any other type to be 32 bit. for now } } return count; } };