UNPKG

4.74 kBSource Map (JSON)View Raw
1{"version":3,"file":"color-blending.js","sourceRoot":"","sources":["../../../src/less/functions/color-blending.js"],"names":[],"mappings":";;;AAAA,gEAAkC;AAElC,iBAAiB;AACjB,0CAA0C;AAE1C,SAAS,UAAU,CAAC,IAAI,EAAE,MAAM,EAAE,MAAM;IACpC,IAAM,EAAE,GAAG,MAAM,CAAC,KAAK,CAAC,CAAQ,SAAS;IAEzC,IAAI,WAAW;IACX,EAAE,CAAC;IAEP,IAAM,EAAE,GAAG,MAAM,CAAC,KAAK,CAAC;IAExB,IAAI,SAAS;IACT,EAAE,CAAC;IAEP,IAAI,EAAE,CAAC;IACP,IAAI,EAAE,CAAC;IACP,IAAM,CAAC,GAAG,EAAE,CAAC;IAEb,EAAE,GAAG,EAAE,GAAG,EAAE,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC,CAAC;IACxB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;QACxB,EAAE,GAAG,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC;QACzB,EAAE,GAAG,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC,GAAG,GAAG,CAAC;QACzB,EAAE,GAAG,IAAI,CAAC,EAAE,EAAE,EAAE,CAAC,CAAC;QAClB,IAAI,EAAE,EAAE;YACJ,EAAE,GAAG,CAAC,EAAE,GAAG,EAAE,GAAG,EAAE,GAAG,CAAC,EAAE;gBAClB,EAAE,GAAG,CAAC,EAAE,GAAG,EAAE,GAAG,EAAE,CAAC,CAAC,CAAC,GAAG,EAAE,CAAC;SACpC;QACD,CAAC,CAAC,CAAC,CAAC,GAAG,EAAE,GAAG,GAAG,CAAC;KACnB;IAED,OAAO,IAAI,eAAK,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC;AAC5B,CAAC;AAED,IAAM,uBAAuB,GAAG;IAC5B,QAAQ,EAAE,UAAS,EAAE,EAAE,EAAE;QACrB,OAAO,EAAE,GAAG,EAAE,CAAC;IACnB,CAAC;IACD,MAAM,EAAE,UAAS,EAAE,EAAE,EAAE;QACnB,OAAO,EAAE,GAAG,EAAE,GAAG,EAAE,GAAG,EAAE,CAAC;IAC7B,CAAC;IACD,OAAO,EAAE,UAAS,EAAE,EAAE,EAAE;QACpB,EAAE,IAAI,CAAC,CAAC;QACR,OAAO,CAAC,EAAE,IAAI,CAAC,CAAC,CAAC,CAAC;YACd,uBAAuB,CAAC,QAAQ,CAAC,EAAE,EAAE,EAAE,CAAC,CAAC,CAAC;YAC1C,uBAAuB,CAAC,MAAM,CAAC,EAAE,GAAG,CAAC,EAAE,EAAE,CAAC,CAAC;IACnD,CAAC;IACD,SAAS,EAAE,UAAS,EAAE,EAAE,EAAE;QACtB,IAAI,CAAC,GAAG,CAAC,CAAC;QACV,IAAI,CAAC,GAAG,EAAE,CAAC;QACX,IAAI,EAAE,GAAG,GAAG,EAAE;YACV,CAAC,GAAG,CAAC,CAAC;YACN,CAAC,GAAG,CAAC,EAAE,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,EAAE,CAAC;gBAC3B,CAAC,CAAC,CAAC,CAAC,EAAE,GAAG,EAAE,GAAG,EAAE,CAAC,GAAG,EAAE,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC;SACxC;QACD,OAAO,EAAE,GAAG,CAAC,CAAC,GAAG,CAAC,GAAG,EAAE,CAAC,GAAG,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC,CAAC;IAC5C,CAAC;IACD,SAAS,EAAE,UAAS,EAAE,EAAE,EAAE;QACtB,OAAO,uBAAuB,CAAC,OAAO,CAAC,EAAE,EAAE,EAAE,CAAC,CAAC;IACnD,CAAC;IACD,UAAU,EAAE,UAAS,EAAE,EAAE,EAAE;QACvB,OAAO,IAAI,CAAC,GAAG,CAAC,EAAE,GAAG,EAAE,CAAC,CAAC;IAC7B,CAAC;IACD,SAAS,EAAE,UAAS,EAAE,EAAE,EAAE;QACtB,OAAO,EAAE,GAAG,EAAE,GAAG,CAAC,GAAG,EAAE,GAAG,EAAE,CAAC;IACjC,CAAC;IAED,qBAAqB;IACrB,OAAO,EAAE,UAAS,EAAE,EAAE,EAAE;QACpB,OAAO,CAAC,EAAE,GAAG,EAAE,CAAC,GAAG,CAAC,CAAC;IACzB,CAAC;IACD,QAAQ,EAAE,UAAS,EAAE,EAAE,EAAE;QACrB,OAAO,CAAC,GAAG,IAAI,CAAC,GAAG,CAAC,EAAE,GAAG,EAAE,GAAG,CAAC,CAAC,CAAC;IACrC,CAAC;CACJ,CAAC;AAEF,KAAK,IAAM,CAAC,IAAI,uBAAuB,EAAE;IACrC,IAAI,uBAAuB,CAAC,cAAc,CAAC,CAAC,CAAC,EAAE;QAC3C,UAAU,CAAC,CAAC,CAAC,GAAG,UAAU,CAAC,IAAI,CAAC,IAAI,EAAE,uBAAuB,CAAC,CAAC,CAAC,CAAC,CAAC;KACrE;CACJ;AAED,kBAAe,UAAU,CAAC","sourcesContent":["import Color from '../tree/color';\n\n// Color Blending\n// ref: http://www.w3.org/TR/compositing-1\n\nfunction colorBlend(mode, color1, color2) {\n const ab = color1.alpha; // result\n\n let // backdrop\n cb;\n\n const as = color2.alpha;\n\n let // source\n cs;\n\n let ar;\n let cr;\n const r = [];\n\n ar = as + ab * (1 - as);\n for (let i = 0; i < 3; i++) {\n cb = color1.rgb[i] / 255;\n cs = color2.rgb[i] / 255;\n cr = mode(cb, cs);\n if (ar) {\n cr = (as * cs + ab * (cb -\n as * (cb + cs - cr))) / ar;\n }\n r[i] = cr * 255;\n }\n\n return new Color(r, ar);\n}\n\nconst colorBlendModeFunctions = {\n multiply: function(cb, cs) {\n return cb * cs;\n },\n screen: function(cb, cs) {\n return cb + cs - cb * cs;\n },\n overlay: function(cb, cs) {\n cb *= 2;\n return (cb <= 1) ?\n colorBlendModeFunctions.multiply(cb, cs) :\n colorBlendModeFunctions.screen(cb - 1, cs);\n },\n softlight: function(cb, cs) {\n let d = 1;\n let e = cb;\n if (cs > 0.5) {\n e = 1;\n d = (cb > 0.25) ? Math.sqrt(cb)\n : ((16 * cb - 12) * cb + 4) * cb;\n }\n return cb - (1 - 2 * cs) * e * (d - cb);\n },\n hardlight: function(cb, cs) {\n return colorBlendModeFunctions.overlay(cs, cb);\n },\n difference: function(cb, cs) {\n return Math.abs(cb - cs);\n },\n exclusion: function(cb, cs) {\n return cb + cs - 2 * cb * cs;\n },\n\n // non-w3c functions:\n average: function(cb, cs) {\n return (cb + cs) / 2;\n },\n negation: function(cb, cs) {\n return 1 - Math.abs(cb + cs - 1);\n }\n};\n\nfor (const f in colorBlendModeFunctions) {\n if (colorBlendModeFunctions.hasOwnProperty(f)) {\n colorBlend[f] = colorBlend.bind(null, colorBlendModeFunctions[f]);\n }\n}\n\nexport default colorBlend;\n"]}
\No newline at end of file