1 | ;
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.Shader = undefined;
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7 |
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8 | var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
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9 |
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10 | var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
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11 |
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12 | var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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13 |
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14 | var _core = require('../core');
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15 |
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16 | var _utils = require('../utils');
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17 |
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18 | var _scope = require('../scope');
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19 |
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20 | var _defines = require('./defines');
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21 |
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22 | var _glslInjectDefines = require('glsl-inject-defines');
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23 |
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24 | var _glslInjectDefines2 = _interopRequireDefault(_glslInjectDefines);
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25 |
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26 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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27 |
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28 | function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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29 |
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30 | function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
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31 |
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32 | function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
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33 |
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34 | var Shader = exports.Shader = function (_Component) {
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35 | _inherits(Shader, _Component);
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36 |
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37 | _createClass(Shader, null, [{
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38 | key: 'defaults',
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39 | value: function defaults() {
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40 | return _extends({}, _core.ShaderLib.defaults(), { defines: {} });
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41 | }
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42 | }]);
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43 |
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44 | function Shader(ctx) {
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45 | var initialState = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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46 |
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47 | _classCallCheck(this, Shader);
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48 |
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49 | (0, _utils.assignDefaults)(initialState, Shader.defaults());
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50 | var shaderName = initialState.shaderName;
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51 |
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52 | var contextCache = {};
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53 | var shaderCache = {};
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54 | var shaderLib = new _core.ShaderLib(_extends({}, initialState));
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55 |
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56 | var injectShaderDefines = _core.Component.compose(new _defines.ShaderDefines(ctx, _extends({}, initialState.defines)));
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57 |
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58 | var injectContext = null;
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59 |
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60 | var fragmentShaderUncompiled = null;
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61 | var vertexShaderUncompiled = null;
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62 | var fragmentShader = null;
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63 | var vertexShader = null;
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64 |
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65 | var _this = _possibleConstructorReturn(this, (Shader.__proto__ || Object.getPrototypeOf(Shader)).call(this, ctx, initialState, update));
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66 |
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67 | function update(state, block, previousState) {
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68 | injectShaderDefines(function (reglContext) {
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69 | var _state$forceCompile = state.forceCompile,
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70 | forceCompile = _state$forceCompile === undefined ? false : _state$forceCompile;
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71 | var defines = reglContext.defines;
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72 |
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73 |
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74 | if (Object.keys(defines).length) {
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75 | if (shaderLib.preprocessor.define(defines)) {
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76 | forceCompile = true;
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77 | }
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78 | }
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79 |
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80 | if (forceCompile || shouldCompile(reglContext, state)) {
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81 | compile(reglContext, state);
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82 | }
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83 |
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84 | setInjectContext(reglContext, state);
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85 |
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86 | if ('function' == typeof injectContext) {
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87 | injectContext(state, block);
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88 | } else {
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89 | block(state);
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90 | }
|
91 | });
|
92 | }
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93 |
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94 | function getShaderFromCache(reglContext, currentState, shader) {
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95 | shader = getViableShader(reglContext, currentState, shader);
|
96 | return shaderCache[shaderLib.hash(shader)];
|
97 | }
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98 |
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99 | function setInjectContext(reglContext, currentState) {
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100 | var opts = {
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101 | context: {
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102 | fragmentShader: function (_fragmentShader) {
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103 | function fragmentShader(_x2) {
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104 | return _fragmentShader.apply(this, arguments);
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105 | }
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106 |
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107 | fragmentShader.toString = function () {
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108 | return _fragmentShader.toString();
|
109 | };
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110 |
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111 | return fragmentShader;
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112 | }(function (_ref) {
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113 | var fs = _ref.fragmentShader;
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114 | return fragmentShader || fs;
|
115 | }),
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116 | vertexShader: function (_vertexShader) {
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117 | function vertexShader(_x3) {
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118 | return _vertexShader.apply(this, arguments);
|
119 | }
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120 |
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121 | vertexShader.toString = function () {
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122 | return _vertexShader.toString();
|
123 | };
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124 |
|
125 | return vertexShader;
|
126 | }(function (_ref2) {
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127 | var vs = _ref2.vertexShader;
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128 | return vertexShader || vs;
|
129 | })
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130 | }
|
131 | };
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132 |
|
133 | var requestedFragmentShader = getShaderFromCache(reglContext, currentState, currentState.fragmentShader);
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134 |
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135 | var requestedVertexShader = getShaderFromCache(reglContext, currentState, currentState.vertexShader);
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136 |
|
137 | if (requestedFragmentShader && requestedFragmentShader != fragmentShader) {
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138 | fragmentShader = requestedFragmentShader;
|
139 | }
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140 |
|
141 | if (requestedVertexShader && requestedVertexShader != vertexShader) {
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142 | vertexShader = requestedVertexShader;
|
143 | }
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144 |
|
145 | if ('string' == typeof vertexShader) {
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146 | opts.vert = vertexShader;
|
147 | }
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148 | if ('string' == typeof fragmentShader) {
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149 | opts.frag = fragmentShader;
|
150 | }
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151 |
|
152 | if ('string' == typeof opts.vert || 'string' == typeof opts.frag) {
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153 | var hash = [shaderLib.hash(opts.vert), shaderLib.hash(opts.frag)].filter(Boolean).join('');
|
154 | if (null == contextCache[hash]) {
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155 | injectContext = ctx.regl(opts);
|
156 | contextCache[hash] = injectContext;
|
157 | injectContext.opts = opts;
|
158 | } else {
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159 | injectContext = contextCache[hash];
|
160 | }
|
161 | }
|
162 | }
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163 |
|
164 | function compile(reglContext, currentState) {
|
165 | if (!isShaderCached(currentState.vertexShader)) {
|
166 | compileVertexShader();
|
167 | }
|
168 |
|
169 | if (!isShaderCached(currentState.fragmentShader)) {
|
170 | compileFragmentShader();
|
171 | }
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172 |
|
173 | function compileShader(type, shader) {
|
174 | var compiled = null;
|
175 | var uncompiled = null;
|
176 | if (isViableShader(shader)) {
|
177 | uncompiled = getViableShader(reglContext, currentState, shader);
|
178 | compiled = shaderLib.compile(shaderName + ' (' + type + ')', uncompiled);
|
179 | compiled = shaderLib.preprocess(compiled);
|
180 | return { compiled: compiled, uncompiled: uncompiled };
|
181 | }
|
182 | return null;
|
183 | }
|
184 |
|
185 | function isShaderCached(shader) {
|
186 | return Boolean(getShaderFromCache(reglContext, currentState, shader));
|
187 | }
|
188 |
|
189 | function compileVertexShader() {
|
190 | var result = compileShader('vertex', currentState.vertexShader);
|
191 | if (result) {
|
192 | vertexShader = result.compiled;
|
193 | vertexShaderUncompiled = result.uncompiled;
|
194 | shaderCache[shaderLib.hash(vertexShaderUncompiled)] = vertexShader;
|
195 | }
|
196 | }
|
197 |
|
198 | function compileFragmentShader() {
|
199 | var result = compileShader('fragment', currentState.fragmentShader);
|
200 | if (result) {
|
201 | fragmentShader = result.compiled;
|
202 | fragmentShaderUncompiled = result.uncompiled;
|
203 | shaderCache[shaderLib.hash(fragmentShaderUncompiled)] = fragmentShader;
|
204 | }
|
205 | }
|
206 | }
|
207 |
|
208 | function getViableShader(reglContext, currentState, shader) {
|
209 | var defines = shaderLib.defines;
|
210 |
|
211 | if ('string' == typeof shader) {
|
212 | return (0, _glslInjectDefines2.default)(shader, defines);
|
213 | } else if ('function' == typeof shader) {
|
214 | return (0, _glslInjectDefines2.default)(shader(reglContext, currentState), defines);
|
215 | }
|
216 | }
|
217 |
|
218 | function isViableShader(shader) {
|
219 | return ['string', 'function'].indexOf(typeof shader === 'undefined' ? 'undefined' : _typeof(shader)) > -1;
|
220 | }
|
221 |
|
222 | function shouldCompile(reglContext, currentState) {
|
223 | var needsCompile = false;
|
224 | check('function' != typeof injectContext);
|
225 | checkShader(vertexShaderUncompiled, currentState.vertexShader);
|
226 | checkShader(fragmentShaderUncompiled, currentState.fragmentShader);
|
227 | return needsCompile;
|
228 |
|
229 | function check(cond) {
|
230 | if (cond) {
|
231 | needsCompile = true;
|
232 | }
|
233 | }
|
234 |
|
235 | function checkShader(current, next) {
|
236 | next = getViableShader(reglContext, currentState, next);
|
237 | if (shaderCache[shaderLib.hash(next)]) {
|
238 | return check(true);
|
239 | } else if ('string' != typeof current && next) {
|
240 | return check(true);
|
241 | } else if ('string' == typeof next && current != next) {
|
242 | return check(true);
|
243 | }
|
244 | }
|
245 | }
|
246 | return _this;
|
247 | }
|
248 |
|
249 | return Shader;
|
250 | }(_core.Component);
|
251 | //# 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{ Component, ShaderLib } from '../core'\nimport { assignDefaults } from '../utils'\nimport { ScopedContext } from '../scope'\nimport { ShaderDefines } from './defines'\nimport injectDefines from 'glsl-inject-defines'\n\nexport class Shader extends Component {\n  static defaults() { return { ...ShaderLib.defaults(), defines: {} } }\n  constructor(ctx, initialState = {}) {\n    assignDefaults(initialState, Shader.defaults())\n    const { shaderName } = initialState\n    const contextCache = {}\n    const shaderCache = {}\n    const shaderLib = new ShaderLib({ ...initialState })\n\n    const injectShaderDefines = Component.compose(\n      new ShaderDefines(ctx, { ...initialState.defines }),\n    )\n\n    let injectContext = null\n\n    let fragmentShaderUncompiled = null\n    let vertexShaderUncompiled = null\n    let fragmentShader = null\n    let vertexShader = null\n\n    super(ctx, initialState, update)\n    function update(state, block, previousState) {\n      injectShaderDefines((reglContext) => {\n        let {forceCompile = false} = state\n        const {defines} = reglContext\n\n        if (Object.keys(defines).length) {\n          if (shaderLib.preprocessor.define(defines)) {\n            forceCompile = true\n          }\n        }\n\n        if (forceCompile || shouldCompile(reglContext, state)) {\n          compile(reglContext, state)\n        }\n\n        setInjectContext(reglContext, state)\n\n        if ('function' == typeof injectContext) {\n          injectContext(state, block)\n        } else {\n          block(state)\n        }\n      })\n    }\n\n    function getShaderFromCache(reglContext, currentState, shader) {\n      shader = getViableShader(reglContext, currentState, shader)\n      return shaderCache[shaderLib.hash(shader)]\n    }\n\n    function setInjectContext(reglContext, currentState) {\n      const opts = {\n        context: {\n          fragmentShader: ({fragmentShader: fs}) => fragmentShader || fs,\n          vertexShader: ({vertexShader: vs }) => vertexShader || vs,\n        }\n      }\n\n      const requestedFragmentShader = getShaderFromCache(\n        reglContext,\n        currentState,\n        currentState.fragmentShader)\n\n      const requestedVertexShader = getShaderFromCache(\n        reglContext,\n        currentState,\n        currentState.vertexShader)\n\n      if (requestedFragmentShader && requestedFragmentShader != fragmentShader) {\n        fragmentShader = requestedFragmentShader\n      }\n\n      if (requestedVertexShader && requestedVertexShader != vertexShader) {\n        vertexShader = requestedVertexShader\n      }\n\n      if ('string' == typeof vertexShader) { opts.vert = vertexShader }\n      if ('string' == typeof fragmentShader) { opts.frag = fragmentShader }\n\n      if ('string' == typeof opts.vert || 'string' == typeof opts.frag) {\n        const hash = [shaderLib.hash(opts.vert), shaderLib.hash(opts.frag)]\n        .filter(Boolean).join('')\n        if (null == contextCache[hash]) {\n          injectContext = ctx.regl(opts)\n          contextCache[hash] = injectContext\n          injectContext.opts = opts\n        } else {\n          injectContext = contextCache[hash]\n        }\n      }\n    }\n\n    function compile(reglContext, currentState) {\n      if (!isShaderCached(currentState.vertexShader)) {\n        compileVertexShader()\n      }\n\n      if (!isShaderCached(currentState.fragmentShader)) {\n        compileFragmentShader()\n      }\n\n      function compileShader(type, shader) {\n        let compiled = null\n        let uncompiled = null\n        if (isViableShader(shader)) {\n          uncompiled = getViableShader(reglContext, currentState, shader)\n          compiled = shaderLib.compile(`${shaderName} (${type})`, uncompiled)\n          compiled = shaderLib.preprocess(compiled)\n          return {compiled, uncompiled}\n        }\n        return null\n      }\n\n      function isShaderCached(shader) {\n        return Boolean(getShaderFromCache(reglContext, currentState, shader))\n      }\n\n      function compileVertexShader() {\n        const result = compileShader('vertex', currentState.vertexShader)\n        if (result) {\n          vertexShader = result.compiled\n          vertexShaderUncompiled = result.uncompiled\n          shaderCache[shaderLib.hash(vertexShaderUncompiled)] = vertexShader\n        }\n      }\n\n      function compileFragmentShader() {\n        const result = compileShader('fragment', currentState.fragmentShader)\n        if (result) {\n          fragmentShader = result.compiled\n          fragmentShaderUncompiled = result.uncompiled\n          shaderCache[shaderLib.hash(fragmentShaderUncompiled)] = fragmentShader\n        }\n      }\n    }\n\n    function getViableShader(reglContext, currentState, shader) {\n      const {defines} = shaderLib\n      if ('string' == typeof shader) {\n        return injectDefines(shader, defines)\n      } else if ('function' == typeof shader) {\n        return injectDefines(shader(reglContext, currentState), defines)\n      }\n    }\n\n    function isViableShader(shader) {\n      return ['string', 'function'].indexOf(typeof shader) > -1\n    }\n\n    function shouldCompile(reglContext, currentState) {\n      let needsCompile = false\n      check('function' != typeof injectContext)\n      checkShader(vertexShaderUncompiled, currentState.vertexShader)\n      checkShader(fragmentShaderUncompiled, currentState.fragmentShader)\n      return needsCompile\n\n      function check(cond) {\n        if (cond) { needsCompile = true }\n      }\n\n      function checkShader(current, next) {\n        let cond = false\n        next = getViableShader(reglContext, currentState, next)\n        if (shaderCache[shaderLib.hash(next)]) {\n          return check(true)\n        } else if ('string' != typeof current && next) {\n          return check(true)\n        } else if ('string' == typeof next && current != next) {\n          return check(true)\n        }\n      }\n    }\n  }\n}\n"]} |
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