363 lines
12 KiB
JavaScript
363 lines
12 KiB
JavaScript
import {getUid} from '../../../../../src/ol/index.js';
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import Feature from '../../../../../src/ol/Feature.js';
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import LineString from '../../../../../src/ol/geom/LineString.js';
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import MultiLineString from '../../../../../src/ol/geom/MultiLineString.js';
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import _ol_render_webgl_LineStringReplay_ from '../../../../../src/ol/render/webgl/LineStringReplay.js';
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import _ol_render_webgl_linestringreplay_defaultshader_ from '../../../../../src/ol/render/webgl/linestringreplay/defaultshader.js';
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import _ol_render_webgl_linestringreplay_defaultshader_Locations_ from '../../../../../src/ol/render/webgl/linestringreplay/defaultshader/Locations.js';
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import _ol_style_Stroke_ from '../../../../../src/ol/style/Stroke.js';
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describe('ol.render.webgl.LineStringReplay', function() {
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var replay;
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var strokeStyle1 = new _ol_style_Stroke_({
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color: [0, 255, 0, 0.4]
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});
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var strokeStyle2 = new _ol_style_Stroke_({
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color: [255, 0, 0, 1],
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lineCap: 'square',
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lineJoin: 'miter'
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});
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beforeEach(function() {
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var tolerance = 0.1;
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var maxExtent = [-10000, -20000, 10000, 20000];
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replay = new _ol_render_webgl_LineStringReplay_(tolerance, maxExtent);
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});
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describe('#setFillStrokeStyle', function() {
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it('set expected states', function() {
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replay.setFillStrokeStyle(null, strokeStyle1);
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expect(replay.state_).not.be(null);
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expect(replay.state_.lineCap).to.be('round');
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expect(replay.state_.lineJoin).to.be('round');
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expect(replay.state_.strokeColor).to.eql([0, 1, 0, 0.4]);
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expect(replay.state_.lineWidth).to.be(1);
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expect(replay.state_.miterLimit).to.be(10);
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expect(replay.state_.changed).to.be(true);
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expect(replay.styles_).to.have.length(1);
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replay.setFillStrokeStyle(null, strokeStyle2);
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expect(replay.state_.lineCap).to.be('square');
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expect(replay.state_.lineJoin).to.be('miter');
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expect(replay.state_.strokeColor).to.eql([1, 0, 0, 1]);
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expect(replay.state_.lineWidth).to.be(1);
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expect(replay.state_.miterLimit).to.be(10);
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expect(replay.state_.changed).to.be(true);
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expect(replay.styles_).to.have.length(2);
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});
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});
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describe('#drawLineString', function() {
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it('sets the buffer data', function() {
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var linestring;
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linestring = new LineString(
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[[1000, 2000], [2000, 3000]]);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(linestring, null);
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expect(replay.vertices).to.have.length(56);
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expect(replay.indices).to.have.length(18);
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expect(replay.state_.changed).to.be(false);
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expect(replay.startIndices).to.have.length(1);
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expect(replay.startIndicesFeature).to.have.length(1);
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linestring = new LineString(
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[[1000, 3000], [2000, 4000], [3000, 3000]]);
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replay.drawLineString(linestring, null);
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expect(replay.vertices).to.have.length(140);
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expect(replay.indices).to.have.length(48);
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expect(replay.state_.changed).to.be(false);
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expect(replay.startIndices).to.have.length(2);
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expect(replay.startIndicesFeature).to.have.length(2);
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});
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});
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describe('#drawMultiLineString', function() {
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it('sets the buffer data', function() {
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var multilinestring;
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multilinestring = new MultiLineString(
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[[[1000, 2000], [2000, 3000]],
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[[1000, 3000], [2000, 4000], [3000, 3000]]]);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawMultiLineString(multilinestring, null);
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expect(replay.vertices).to.have.length(140);
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expect(replay.indices).to.have.length(48);
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expect(replay.state_.changed).to.be(false);
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expect(replay.startIndices).to.have.length(1);
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expect(replay.startIndicesFeature).to.have.length(1);
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});
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});
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describe('#drawCoordinates_', function() {
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it('triangulates linestrings', function() {
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var linestring;
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var stroke = new _ol_style_Stroke_({
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color: [0, 255, 0, 1],
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lineCap: 'butt',
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lineJoin: 'bevel'
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});
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linestring = new LineString(
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[[1000, 3000], [2000, 4000], [3000, 3000]]);
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var flatCoordinates = linestring.getFlatCoordinates();
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replay.setFillStrokeStyle(null, stroke);
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replay.drawCoordinates_(flatCoordinates, 0,
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flatCoordinates.length, 2);
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expect(replay.indices).to.eql(
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[2, 0, 1, 4, 2, 1,
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2, 4, 3,
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5, 3, 4, 4, 6, 5]);
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});
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it('optionally creates miters', function() {
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var linestring;
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var stroke = new _ol_style_Stroke_({
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color: [0, 255, 0, 1],
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lineCap: 'butt'
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});
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linestring = new LineString(
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[[1000, 3000], [2000, 4000], [3000, 3000]]);
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var flatCoordinates = linestring.getFlatCoordinates();
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replay.setFillStrokeStyle(null, stroke);
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replay.drawCoordinates_(flatCoordinates, 0,
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flatCoordinates.length, 2);
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expect(replay.indices).to.eql(
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[2, 0, 1, 4, 2, 1,
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2, 4, 3, 3, 5, 2,
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6, 3, 4, 4, 7, 6]);
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});
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it('optionally creates caps', function() {
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var linestring;
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var stroke = new _ol_style_Stroke_({
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color: [0, 255, 0, 1]
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});
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linestring = new LineString(
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[[1000, 3000], [2000, 4000], [3000, 3000]]);
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var flatCoordinates = linestring.getFlatCoordinates();
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replay.setFillStrokeStyle(null, stroke);
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replay.drawCoordinates_(flatCoordinates, 0,
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flatCoordinates.length, 2);
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expect(replay.indices).to.eql(
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[2, 0, 1, 1, 3, 2,
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4, 2, 3, 6, 4, 3,
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4, 6, 5, 5, 7, 4,
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8, 5, 6, 6, 9, 8,
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10, 8, 9, 9, 11, 10]);
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});
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it('respects segment orientation', function() {
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var linestring;
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var stroke = new _ol_style_Stroke_({
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color: [0, 255, 0, 1],
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lineCap: 'butt',
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lineJoin: 'bevel'
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});
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linestring = new LineString(
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[[1000, 3000], [2000, 2000], [3000, 3000]]);
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var flatCoordinates = linestring.getFlatCoordinates();
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replay.setFillStrokeStyle(null, stroke);
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replay.drawCoordinates_(flatCoordinates, 0,
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flatCoordinates.length, 2);
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expect(replay.indices).to.eql(
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[2, 0, 1, 4, 2, 0,
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2, 4, 3,
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5, 3, 4, 4, 6, 5]);
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});
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it('closes boundaries', function() {
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var linestring;
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var stroke = new _ol_style_Stroke_({
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color: [0, 255, 0, 1],
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lineCap: 'butt',
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lineJoin: 'bevel'
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});
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linestring = new LineString(
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[[1000, 3000], [2000, 4000], [3000, 3000], [1000, 3000]]);
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var flatCoordinates = linestring.getFlatCoordinates();
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replay.setFillStrokeStyle(null, stroke);
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replay.drawCoordinates_(flatCoordinates, 0,
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flatCoordinates.length, 2);
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expect(replay.indices).to.eql(
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[0, 2, 1, 3, 1, 2,
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5, 3, 2,
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3, 5, 4, 6, 4, 5,
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8, 6, 5,
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6, 8, 7, 9, 7, 8,
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10, 9, 8]);
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expect(replay.vertices.slice(0, 7)).to.eql(
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replay.vertices.slice(-14, -7));
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expect(replay.vertices.slice(14, 21)).to.eql(
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replay.vertices.slice(-7));
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});
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});
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describe('#setUpProgram', function() {
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var context, gl;
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beforeEach(function() {
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context = {
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getProgram: function() {},
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useProgram: function() {}
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};
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gl = {
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enableVertexAttribArray: function() {},
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vertexAttribPointer: function() {},
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uniform1f: function() {},
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uniform2fv: function() {},
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getUniformLocation: function() {},
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getAttribLocation: function() {}
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};
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});
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it('returns the locations used by the shaders', function() {
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var locations = replay.setUpProgram(gl, context, [2, 2], 1);
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expect(locations).to.be.a(
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_ol_render_webgl_linestringreplay_defaultshader_Locations_);
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});
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it('gets and compiles the shaders', function() {
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sinon.spy(context, 'getProgram');
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sinon.spy(context, 'useProgram');
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replay.setUpProgram(gl, context, [2, 2], 1);
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expect(context.getProgram.calledWithExactly(
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_ol_render_webgl_linestringreplay_defaultshader_.fragment,
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_ol_render_webgl_linestringreplay_defaultshader_.vertex)).to.be(true);
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expect(context.useProgram.calledOnce).to.be(true);
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});
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it('initializes the attrib pointers', function() {
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sinon.spy(gl, 'getAttribLocation');
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sinon.spy(gl, 'vertexAttribPointer');
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sinon.spy(gl, 'enableVertexAttribArray');
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replay.setUpProgram(gl, context, [2, 2], 1);
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expect(gl.vertexAttribPointer.callCount).to.be(gl.getAttribLocation.callCount);
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expect(gl.enableVertexAttribArray.callCount).to.be(
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gl.getAttribLocation.callCount);
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});
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});
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describe('#shutDownProgram', function() {
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var context, gl;
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beforeEach(function() {
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context = {
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getProgram: function() {},
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useProgram: function() {}
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};
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gl = {
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enableVertexAttribArray: function() {},
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disableVertexAttribArray: function() {},
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vertexAttribPointer: function() {},
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uniform1f: function() {},
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uniform2fv: function() {},
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getUniformLocation: function() {},
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getAttribLocation: function() {}
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};
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});
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it('disables the attrib pointers', function() {
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sinon.spy(gl, 'getAttribLocation');
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sinon.spy(gl, 'disableVertexAttribArray');
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var locations = replay.setUpProgram(gl, context, [2, 2], 1);
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replay.shutDownProgram(gl, locations);
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expect(gl.disableVertexAttribArray.callCount).to.be(
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gl.getAttribLocation.callCount);
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});
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});
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describe('#drawReplay', function() {
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var gl, context;
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var feature1 = new Feature({
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geometry: new LineString([[0, 0], [500, 500]])
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});
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var feature2 = new Feature({
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geometry: new LineString([[0, 0], [500, 500]])
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});
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var feature3 = new Feature({
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geometry: new LineString([[0, 0], [500, 500]])
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});
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beforeEach(function() {
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gl = {
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enable: function() {},
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disable: function() {},
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depthMask: function() {},
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depthFunc: function() {},
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clear: function() {},
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getParameter: function() {}
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};
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context = {};
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replay.setStrokeStyle_ = function() {};
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replay.drawElements = function() {};
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sinon.spy(replay, 'setStrokeStyle_');
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sinon.spy(replay, 'drawElements');
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sinon.spy(gl, 'clear');
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});
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it('draws the elements in a single call if they have the same style', function() {
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature1.getGeometry(), feature1);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature2.getGeometry(), feature2);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature3.getGeometry(), feature3);
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replay.startIndices.push(replay.indices.length);
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replay.drawReplay(gl, context, {}, false);
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expect(replay.setStrokeStyle_.calledOnce).to.be(true);
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expect(replay.drawElements.calledOnce).to.be(true);
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expect(gl.clear.called).to.be(true);
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});
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it('draws the elements in batches if there are multiple styles', function() {
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature1.getGeometry(), feature1);
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replay.setFillStrokeStyle(null, strokeStyle2);
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replay.drawLineString(feature2.getGeometry(), feature2);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature3.getGeometry(), feature3);
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replay.startIndices.push(replay.indices.length);
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replay.drawReplay(gl, context, {}, false);
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expect(replay.setStrokeStyle_.calledThrice).to.be(true);
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expect(replay.drawElements.calledThrice).to.be(true);
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expect(gl.clear.called).to.be(true);
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});
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it('can skip elements if needed', function() {
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature1.getGeometry(), feature1);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature2.getGeometry(), feature2);
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replay.setFillStrokeStyle(null, strokeStyle1);
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replay.drawLineString(feature3.getGeometry(), feature3);
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replay.startIndices.push(replay.indices.length);
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var skippedFeatHash = {};
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skippedFeatHash[getUid(feature2).toString()] = true;
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replay.drawReplay(gl, context, skippedFeatHash, false);
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expect(replay.setStrokeStyle_.calledOnce).to.be(true);
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expect(replay.drawElements.calledTwice).to.be(true);
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expect(gl.clear.called).to.be(true);
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});
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});
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});
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