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gpu-transform.spec.js
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gpu-transform.spec.js
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// Copyright (c) 2015 - 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import test from 'tape-catch';
import {GPUTable} from '@deck.gl/gpu-table';
import gpuTransform from '../../src/lib/gpu-transform';
// import gpuTransform from '@deck.gl/gpu-table/gpu-transform';
import {isWebGL2} from '@luma.gl/core';
import {gl} from '@deck.gl/test-utils';
test('gpuTransform#imports', t => {
t.equals(typeof gpuTransform, 'function', 'GPUTable import successful');
t.end();
});
test('gpuTransform', t => {
if (!isWebGL2(gl)) {
t.comment('gpuTransform requires WebGL2, skipping tests');
t.end();
return;
}
const LONGITUDES = [1.0, 2.0, 3.0];
const LATITUDES = [11.0, 12.0, 13.0];
const gpuTable = new GPUTable(gl, {
columns: {
longitude: {data: new Float32Array(LONGITUDES)},
latitude: {data: new Float32Array(LATITUDES)}
}
});
gpuTransform(gpuTable, {
position: {
sourceColumns: ['longitude', 'latitude'],
glslCode: 'position = vec3(longitude, latitude, 0.0);'
}
});
t.ok(gpuTable.buffers.position, 'should create position Buffer');
t.ok(gpuTable.accessors.position, 'should create position Accessor');
const positions = gpuTable.buffers.position.getData();
for (let i = 0; i < LONGITUDES.length; i++) {
t.equal(positions[i * 3], LONGITUDES[i], `should match longitude at index: ${i}`);
t.equal(positions[i * 3 + 1], LATITUDES[i], `should match latitude at index: ${i}`);
t.equal(positions[i * 3 + 2], 0, `should match z at index: ${i}`);
}
t.end();
});