Sampler

Source

index.js
import macro from 'vtk.js/Sources/macros';

/* eslint-disable no-bitwise */

// ----------------------------------------------------------------------------
// vtkWebGPUSampler methods
// ----------------------------------------------------------------------------

function vtkWebGPUSampler(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkWebGPUSampler');

publicAPI.create = (device, options = {}) => {
model.device = device;
model.options.addressModeU = options.addressModeU
? options.addressModeU
: 'clamp-to-edge';
model.options.addressModeV = options.addressModeV
? options.addressModeV
: 'clamp-to-edge';
model.options.addressModeW = options.addressModeW
? options.addressModeW
: 'clamp-to-edge';
model.options.magFilter = options.magFilter ? options.magFilter : 'nearest';
model.options.minFilter = options.minFilter ? options.minFilter : 'nearest';
model.options.mipmapFilter = options.mipmapFilter
? options.mipmapFilter
: 'nearest';
model.options.label = model.label;
model.handle = model.device.getHandle().createSampler(model.options);
model.bindGroupTime.modified();
};

publicAPI.getShaderCode = (binding, group) => {
const result = `@binding(${binding}) @group(${group}) var ${model.label}: sampler;`;
return result;
};

publicAPI.getBindGroupEntry = () => {
const foo = {
resource: model.handle,
};
return foo;
};
}

// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------

const DEFAULT_VALUES = {
device: null,
handle: null,
label: null,
options: null,
};

// ----------------------------------------------------------------------------

export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);

// Object methods
macro.obj(publicAPI, model);

model.options = {};
model.bindGroupLayoutEntry = {
/* eslint-disable no-undef */
visibility: GPUShaderStage.VERTEX | GPUShaderStage.FRAGMENT,
/* eslint-enable no-undef */
sampler: {
// type: 'filtering',
},
};

model.bindGroupTime = {};
macro.obj(model.bindGroupTime, { mtime: 0 });

macro.get(publicAPI, model, ['bindGroupTime', 'handle', 'options']);
macro.setGet(publicAPI, model, ['bindGroupLayoutEntry', 'device', 'label']);

vtkWebGPUSampler(publicAPI, model);
}

// ----------------------------------------------------------------------------

export const newInstance = macro.newInstance(extend);

// ----------------------------------------------------------------------------

export default { newInstance, extend };