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 | function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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21 |
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22 | 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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23 |
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24 | 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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25 |
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26 | var Shader = exports.Shader = function (_Component) {
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27 | _inherits(Shader, _Component);
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28 |
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29 | _createClass(Shader, null, [{
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30 | key: 'defaults',
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31 | value: function defaults() {
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32 | return _extends({}, _core.ShaderLib.defaults(), { defines: {} });
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33 | }
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34 | }]);
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35 |
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36 | function Shader(ctx) {
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37 | var initialState = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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38 |
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39 | _classCallCheck(this, Shader);
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40 |
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41 | (0, _utils.assignDefaults)(initialState, Shader.defaults());
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42 | var defines = initialState.defines,
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43 | shaderName = initialState.shaderName;
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44 |
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45 | var contextCache = {};
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46 | var shaderCache = {};
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47 | var shaderLib = new _core.ShaderLib(_extends({}, initialState, { defines: defines }));
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48 |
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49 | var injectParentContext = new _scope.ScopedContext(ctx, {
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50 | defines: function (_defines) {
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51 | function defines(_x2) {
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52 | return _defines.apply(this, arguments);
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53 | }
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54 |
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55 | defines.toString = function () {
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56 | return _defines.toString();
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57 | };
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58 |
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59 | return defines;
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60 | }(function (_ref) {
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61 | var contextDefines = _ref.defines;
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62 |
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63 | return _extends({}, contextDefines, defines);
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64 | })
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65 | });
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66 |
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67 | var injectContext = null;
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68 |
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69 | var fragmentShaderUncompiled = null;
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70 | var vertexShaderUncompiled = null;
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71 | var fragmentShader = null;
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72 | var vertexShader = null;
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73 |
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74 | var _this = _possibleConstructorReturn(this, (Shader.__proto__ || Object.getPrototypeOf(Shader)).call(this, ctx, initialState, update));
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75 |
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76 | function update(state, block, previousState) {
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77 | injectParentContext(function (reglContext) {
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78 | var _state$forceCompile = state.forceCompile,
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79 | forceCompile = _state$forceCompile === undefined ? false : _state$forceCompile;
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80 |
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81 | Object.assign(defines, _extends({}, reglContext.defines, state.defines));
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82 |
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83 | if (Object.keys(defines).length) {
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84 | if (shaderLib.preprocessor.define(defines)) {
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85 | forceCompile = true;
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86 | }
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87 | }
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88 |
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89 | if (forceCompile || shouldCompile(reglContext, state)) {
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90 | compile(reglContext, state);
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91 | }
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92 |
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93 | setInjectContext(reglContext, state);
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94 |
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95 | if ('function' == typeof injectContext) {
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96 | injectContext(state, block);
|
97 | } else {
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98 | block(state);
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99 | }
|
100 | });
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101 | }
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102 |
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103 | function getShaderFromCache(reglContext, currentState, shader) {
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104 | shader = getViableShader(reglContext, currentState, shader);
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105 | return shaderCache[shaderLib.hash(shader)];
|
106 | }
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107 |
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108 | function setInjectContext(reglContext, currentState) {
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109 | var opts = {
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110 | context: {
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111 | fragmentShader: function (_fragmentShader) {
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112 | function fragmentShader(_x3) {
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113 | return _fragmentShader.apply(this, arguments);
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114 | }
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115 |
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116 | fragmentShader.toString = function () {
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117 | return _fragmentShader.toString();
|
118 | };
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119 |
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120 | return fragmentShader;
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121 | }(function (_ref2) {
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122 | var fs = _ref2.fragmentShader;
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123 | return fragmentShader || fs;
|
124 | }),
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125 | vertexShader: function (_vertexShader) {
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126 | function vertexShader(_x4) {
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127 | return _vertexShader.apply(this, arguments);
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128 | }
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129 |
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130 | vertexShader.toString = function () {
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131 | return _vertexShader.toString();
|
132 | };
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133 |
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134 | return vertexShader;
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135 | }(function (_ref3) {
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136 | var vs = _ref3.vertexShader;
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137 | return vertexShader || vs;
|
138 | })
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139 | }
|
140 | };
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141 |
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142 | var requestedFragmentShader = getShaderFromCache(reglContext, currentState, currentState.fragmentShader);
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143 |
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144 | var requestedVertexShader = getShaderFromCache(reglContext, currentState, currentState.vertexShader);
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145 |
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146 | if (requestedFragmentShader && requestedFragmentShader != fragmentShader) {
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147 | fragmentShader = requestedFragmentShader;
|
148 | }
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149 |
|
150 | if (requestedVertexShader && requestedVertexShader != vertexShader) {
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151 | vertexShader = requestedVertexShader;
|
152 | }
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153 |
|
154 | if ('string' == typeof vertexShader) {
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155 | opts.vert = vertexShader;
|
156 | }
|
157 | if ('string' == typeof fragmentShader) {
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158 | opts.frag = fragmentShader;
|
159 | }
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160 |
|
161 | if ('string' == typeof opts.vert || 'string' == typeof opts.frag) {
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162 | var hash = [shaderLib.hash(opts.vert), shaderLib.hash(opts.frag)].filter(Boolean).join('');
|
163 | if (null == contextCache[hash]) {
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164 | injectContext = ctx.regl(opts);
|
165 | contextCache[hash] = injectContext;
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166 | injectContext.opts = opts;
|
167 | } else {
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168 | injectContext = contextCache[hash];
|
169 | }
|
170 | }
|
171 | }
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172 |
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173 | function compile(reglContext, currentState) {
|
174 | if (!isShaderCached(currentState.vertexShader)) {
|
175 | compileVertexShader();
|
176 | }
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177 |
|
178 | if (!isShaderCached(currentState.fragmentShader)) {
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179 | compileFragmentShader();
|
180 | }
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181 |
|
182 | function compileShader(type, shader) {
|
183 | var compiled = null;
|
184 | var uncompiled = null;
|
185 | if (isViableShader(shader)) {
|
186 | uncompiled = getViableShader(reglContext, currentState, shader);
|
187 | compiled = shaderLib.compile(shaderName + ' (' + type + ')', uncompiled);
|
188 | compiled = shaderLib.preprocess(compiled);
|
189 | return { compiled: compiled, uncompiled: uncompiled };
|
190 | }
|
191 | return null;
|
192 | }
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193 |
|
194 | function isShaderCached(shader) {
|
195 | return Boolean(getShaderFromCache(reglContext, currentState, shader));
|
196 | }
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197 |
|
198 | function compileVertexShader() {
|
199 | var result = compileShader('vertex', currentState.vertexShader);
|
200 | if (result) {
|
201 | vertexShader = result.compiled;
|
202 | vertexShaderUncompiled = result.uncompiled;
|
203 | shaderCache[shaderLib.hash(vertexShaderUncompiled)] = vertexShader;
|
204 | }
|
205 | }
|
206 |
|
207 | function compileFragmentShader() {
|
208 | var result = compileShader('fragment', currentState.fragmentShader);
|
209 | if (result) {
|
210 | fragmentShader = result.compiled;
|
211 | fragmentShaderUncompiled = result.uncompiled;
|
212 | shaderCache[shaderLib.hash(fragmentShaderUncompiled)] = fragmentShader;
|
213 | }
|
214 | }
|
215 | }
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216 |
|
217 | function getViableShader(reglContext, currentState, shader) {
|
218 | if ('string' == typeof shader) {
|
219 | return shader;
|
220 | } else if ('function' == typeof shader) {
|
221 | return shader(reglContext, currentState);
|
222 | }
|
223 | }
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224 |
|
225 | function isViableShader(shader) {
|
226 | return ['string', 'function'].indexOf(typeof shader === 'undefined' ? 'undefined' : _typeof(shader)) > -1;
|
227 | }
|
228 |
|
229 | function shouldCompile(reglContext, currentState) {
|
230 | var needsCompile = false;
|
231 | check('function' != typeof injectContext);
|
232 | checkShader(vertexShaderUncompiled, currentState.vertexShader);
|
233 | checkShader(fragmentShaderUncompiled, currentState.fragmentShader);
|
234 | return needsCompile;
|
235 |
|
236 | function check(cond) {
|
237 | if (cond) {
|
238 | needsCompile = true;
|
239 | }
|
240 | }
|
241 |
|
242 | function checkShader(current, next) {
|
243 | next = getViableShader(reglContext, currentState, next);
|
244 | if (shaderCache[shaderLib.hash(next)]) {
|
245 | return check(true);
|
246 | } else if ('string' != typeof current && next) {
|
247 | return check(true);
|
248 | } else if ('string' == typeof next && current != next) {
|
249 | return check(true);
|
250 | }
|
251 | }
|
252 | }
|
253 | return _this;
|
254 | }
|
255 |
|
256 | return Shader;
|
257 | }(_core.Component);
|
258 | //# 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{ Component, ShaderLib } from '../core'\nimport { assignDefaults } from '../utils'\nimport { ScopedContext } from '../scope'\n\nexport class Shader extends Component {\n  static defaults() { return { ...ShaderLib.defaults(), defines: {} } }\n  constructor(ctx, initialState = {}) {\n    assignDefaults(initialState, Shader.defaults())\n    const { defines, shaderName } = initialState\n    const contextCache = {}\n    const shaderCache = {}\n    const shaderLib = new ShaderLib({ ...initialState, defines })\n\n    const injectParentContext = new ScopedContext(ctx, {\n      defines({defines: contextDefines}) {\n        return { ...contextDefines, ...defines }\n      }\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      injectParentContext((reglContext) => {\n        let {forceCompile = false} = state\n        Object.assign(defines, { ...reglContext.defines, ...state.defines })\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      if ('string' == typeof shader) { return shader }\n      else if ('function' == typeof shader) {\n        return shader(reglContext, currentState)\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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