@deck.gl/experimental-layers
Version:
Experimental layers for deck.gl
268 lines (229 loc) • 9.8 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _core = require("@deck.gl/core");
var _constants = _interopRequireDefault(require("luma.gl/constants"));
var _luma = require("luma.gl");
var _bitmapLayerVertex = _interopRequireDefault(require("./bitmap-layer-vertex"));
var _bitmapLayerFragment = _interopRequireDefault(require("./bitmap-layer-fragment"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
// Note: needs to match vertex shader
var MAX_BITMAPS = 11;
var defaultProps = {
images: {
type: 'array',
value: []
},
desaturate: {
type: 'number',
min: 0,
max: 1,
value: 0
},
blendMode: null,
// More context: because of the blending mode we're using for ground imagery,
// alpha is not effective when blending the bitmap layers with the base map.
// Instead we need to manually dim/blend rgb values with a background color.
transparentColor: {
type: 'color',
value: [0, 0, 0, 0]
},
tintColor: {
type: 'color',
value: [255, 255, 255]
},
// accessors
getCenter: {
type: 'accessor',
value: function value(x) {
return x.center;
}
},
getRotation: {
type: 'accessor',
value: function value(x) {
return x.rotation;
}
}
};
/*
* @class
* @param {object} props
* @param {number} props.transparentColor - color to interpret transparency to
* @param {number} props.tintColor - color bias
*/
var BitmapLayer =
/*#__PURE__*/
function (_Layer) {
_inherits(BitmapLayer, _Layer);
function BitmapLayer() {
_classCallCheck(this, BitmapLayer);
return _possibleConstructorReturn(this, _getPrototypeOf(BitmapLayer).apply(this, arguments));
}
_createClass(BitmapLayer, [{
key: "initializeState",
value: function initializeState() {
var gl = this.context.gl;
this.setState({
model: this.getModel(gl)
});
var attributeManager = this.state.attributeManager;
attributeManager.addInstanced({
instanceCenter: {
size: 3,
accessor: 'getCenter'
},
instanceRotation: {
size: 3,
accessor: 'getRotation'
},
instanceBitmapIndex: {
size: 1,
update: this.calculateInstanceBitmapIndex
}
});
}
}, {
key: "updateState",
value: function updateState(_ref) {
var props = _ref.props,
oldProps = _ref.oldProps;
if (props.images !== oldProps.images) {
var changed = !oldProps.images || props.images.length !== oldProps.images.length;
if (!changed) {
for (var i = 0; i < props.images.length; ++i) {
changed = changed || props.images[i] !== oldProps.images[i];
}
}
if (changed) {
this.loadMapImagesToTextures();
}
}
var desaturate = props.desaturate;
this.state.model.setUniforms({
desaturate: desaturate
});
}
}, {
key: "getModel",
value: function getModel(gl) {
// Two triangles making up a square to render the bitmap texture on
var verts = [[1, 1, 0], [-1, 1, 0], [1, -1, 0], [-1, 1, 0], [1, -1, 0], [-1, -1, 0]];
var positions = [];
var texCoords = [];
verts.forEach(function (vertex) {
// geometry: unit square centered on origin
positions.push(vertex[0] / 2, vertex[1] / 2, vertex[2] / 2); // texture: unit square with bottom left in origin
texCoords.push(vertex[0] / 2 + 0.5, -vertex[1] / 2 + 0.5);
});
var model = new _luma.Model(gl, {
id: this.props.id,
vs: _bitmapLayerVertex.default,
fs: _bitmapLayerFragment.default,
shaderCache: this.context.shaderCache,
geometry: new _luma.Geometry({
drawMode: _constants.default.TRIANGLES,
vertexCount: 6,
attributes: {
positions: new Float32Array(positions),
texCoords: new Float32Array(texCoords)
}
}),
isInstanced: true
});
return model;
}
}, {
key: "draw",
value: function draw(_ref2) {
var uniforms = _ref2.uniforms;
var _this$props = this.props,
transparentColor = _this$props.transparentColor,
tintColor = _this$props.tintColor; // TODO fix zFighting
// Render the image
this.state.model.render(Object.assign({}, uniforms, {
transparentColor: transparentColor,
tintColor: tintColor
}));
}
}, {
key: "loadMapImagesToTextures",
value: function loadMapImagesToTextures() {
var _this = this;
var model = this.state.model;
var images = this.props.images;
var _loop = function _loop(i) {
(0, _luma.loadTextures)(_this.context.gl, {
urls: [images[i]]
}).then(function (_ref3) {
var _ref4 = _slicedToArray(_ref3, 1),
texture = _ref4[0];
return model.setUniforms(_defineProperty({}, "uBitmap".concat(i), texture));
});
};
for (var i = 0; i < Math.min(images.length, MAX_BITMAPS); i++) {
_loop(i);
}
}
}, {
key: "getBitmapIndex",
value: function getBitmapIndex(point) {
var url = point.imageUrl;
var idx = Math.max(this.props.images.indexOf(url), 0);
return idx >= MAX_BITMAPS ? 0 : idx;
}
}, {
key: "calculateInstanceBitmapIndex",
value: function calculateInstanceBitmapIndex(attribute) {
var data = this.props.data;
var value = attribute.value,
size = attribute.size;
var i = 0;
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = data[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var point = _step.value;
var bitmapIndex = Number.isFinite(point.bitmapIndex) ? point.bitmapIndex : this.getBitmapIndex(point);
value[i] = bitmapIndex;
i += size;
}
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator.return != null) {
_iterator.return();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
}
}]);
return BitmapLayer;
}(_core.Layer);
exports.default = BitmapLayer;
BitmapLayer.layerName = 'BitmapLayer';
BitmapLayer.defaultProps = defaultProps;
//# sourceMappingURL=bitmap-layer.js.map