kinetic-slider/dist/cjs/filters/alphaFilter.cjs.map

A WebGL-powered kinetic slider component using PIXI.js

{"version":3,"file":"alphaFilter.cjs","sources":["../../../src/filters/alphaFilter.ts"],"sourcesContent":["import { AlphaFilter } from 'pixi.js';\nimport { type AlphaFilterConfig, type FilterResult } from './types';\nimport { ShaderResourceManager } from '../managers/ShaderResourceManager';\n\n/**\n * Creates an Alpha filter that applies transparency to the entire display object\n *\n * This is recommended over Container's alpha property to avoid visual layering issues\n * with individual elements. AlphaFilter applies alpha evenly across the entire\n * display object and any opaque elements it contains.\n * Uses shader pooling for better performance.\n *\n * @param config - Configuration for the Alpha filter\n * @returns FilterResult with the filter instance and control functions\n */\nexport function createAlphaFilter(config: AlphaFilterConfig): FilterResult {\n    // Get shader manager instance\n    const shaderManager = ShaderResourceManager.getInstance();\n\n    // Create a unique key for this filter configuration\n    const shaderKey = `alpha-filter`;\n\n    // Create the filter (PixiJS AlphaFilter doesn't accept options in constructor)\n    const filter = new AlphaFilter();\n\n    // Register filter with shader manager\n    try {\n        shaderManager.registerFilter(filter, shaderKey);\n    } catch (error) {\n        console.warn('Error registering alpha filter with shader manager:', error);\n    }\n\n    /**\n     * Update the filter's alpha intensity\n     *\n     * @param intensity - New intensity value (maps to alpha value)\n     */\n    const updateIntensity = (intensity: number): void => {\n        // Map intensity to alpha (0-10 scale to 0-1 scale)\n        filter.alpha = Math.max(0, Math.min(1, intensity / 10));\n    };\n\n    // Set initial intensity\n    updateIntensity(config.intensity);\n\n    /**\n     * Reset the filter to default state (fully opaque)\n     */\n    const reset = (): void => {\n        filter.alpha = 1;\n    };\n\n    /**\n     * Release any WebGL resources used by this filter\n     */\n    const dispose = (): void => {\n        try {\n            shaderManager.releaseFilter(filter, shaderKey);\n        } catch (error) {\n            console.warn('Error releasing alpha filter shader:', error);\n        }\n        filter.destroy();\n    };\n\n    return { filter, updateIntensity, reset, dispose };\n}"],"names":["ShaderResourceManager","AlphaFilter"],"mappings":";;;;;AAeO,SAAS,kBAAkB,MAAyC,EAAA;AAEvE,EAAM,MAAA,aAAA,GAAgBA,4CAAsB,WAAY,EAAA;AAGxD,EAAA,MAAM,SAAY,GAAA,CAAA,YAAA,CAAA;AAGlB,EAAM,MAAA,MAAA,GAAS,IAAIC,mBAAY,EAAA;AAG/B,EAAI,IAAA;AACA,IAAc,aAAA,CAAA,cAAA,CAAe,QAAQ,SAAS,CAAA;AAAA,WACzC,KAAO,EAAA;AACZ,IAAQ,OAAA,CAAA,IAAA,CAAK,uDAAuD,KAAK,CAAA;AAAA;AAQ7E,EAAM,MAAA,eAAA,GAAkB,CAAC,SAA4B,KAAA;AAEjD,IAAO,MAAA,CAAA,KAAA,GAAQ,KAAK,GAAI,CAAA,CAAA,EAAG,KAAK,GAAI,CAAA,CAAA,EAAG,SAAY,GAAA,EAAE,CAAC,CAAA;AAAA,GAC1D;AAGA,EAAA,eAAA,CAAgB,OAAO,SAAS,CAAA;AAKhC,EAAA,MAAM,QAAQ,MAAY;AACtB,IAAA,MAAA,CAAO,KAAQ,GAAA,CAAA;AAAA,GACnB;AAKA,EAAA,MAAM,UAAU,MAAY;AACxB,IAAI,IAAA;AACA,MAAc,aAAA,CAAA,aAAA,CAAc,QAAQ,SAAS,CAAA;AAAA,aACxC,KAAO,EAAA;AACZ,MAAQ,OAAA,CAAA,IAAA,CAAK,wCAAwC,KAAK,CAAA;AAAA;AAE9D,IAAA,MAAA,CAAO,OAAQ,EAAA;AAAA,GACnB;AAEA,EAAA,OAAO,EAAE,MAAA,EAAQ,eAAiB,EAAA,KAAA,EAAO,OAAQ,EAAA;AACrD;;;;"}