@luma.gl/shadertools/dist/es5/modules/fxaa/fxaa.js

Shader module system for luma.gl

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.fxaa = void 0;

/**
 * ORIGINAL LICENCE
 * @license
 * Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * Neither the name of NVIDIA CORPORATION nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
var fs = "\n#define FXAA_QUALITY_PRESET 29\n\n#if (FXAA_QUALITY_PRESET == 10)\n    #define FXAA_QUALITY_PS 3\n    #define FXAA_QUALITY_P0 1.5\n    #define FXAA_QUALITY_P1 3.0\n    #define FXAA_QUALITY_P2 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 11)\n    #define FXAA_QUALITY_PS 4\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 3.0\n    #define FXAA_QUALITY_P3 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 12)\n    #define FXAA_QUALITY_PS 5\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 4.0\n    #define FXAA_QUALITY_P4 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 13)\n    #define FXAA_QUALITY_PS 6\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 4.0\n    #define FXAA_QUALITY_P5 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 14)\n    #define FXAA_QUALITY_PS 7\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 4.0\n    #define FXAA_QUALITY_P6 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 15)\n    #define FXAA_QUALITY_PS 8\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 4.0\n    #define FXAA_QUALITY_P7 12.0\n#endif\n#if (FXAA_QUALITY_PRESET == 20)\n    #define FXAA_QUALITY_PS 3\n    #define FXAA_QUALITY_P0 1.5\n    #define FXAA_QUALITY_P1 2.0\n    #define FXAA_QUALITY_P2 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 21)\n    #define FXAA_QUALITY_PS 4\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 22)\n    #define FXAA_QUALITY_PS 5\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 23)\n    #define FXAA_QUALITY_PS 6\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 24)\n    #define FXAA_QUALITY_PS 7\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 3.0\n    #define FXAA_QUALITY_P6 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 25)\n    #define FXAA_QUALITY_PS 8\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 4.0\n    #define FXAA_QUALITY_P7 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 26)\n    #define FXAA_QUALITY_PS 9\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 2.0\n    #define FXAA_QUALITY_P7 4.0\n    #define FXAA_QUALITY_P8 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 27)\n    #define FXAA_QUALITY_PS 10\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 2.0\n    #define FXAA_QUALITY_P7 2.0\n    #define FXAA_QUALITY_P8 4.0\n    #define FXAA_QUALITY_P9 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 28)\n    #define FXAA_QUALITY_PS 11\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 2.0\n    #define FXAA_QUALITY_P7 2.0\n    #define FXAA_QUALITY_P8 2.0\n    #define FXAA_QUALITY_P9 4.0\n    #define FXAA_QUALITY_P10 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 29)\n    #define FXAA_QUALITY_PS 12\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.5\n    #define FXAA_QUALITY_P2 2.0\n    #define FXAA_QUALITY_P3 2.0\n    #define FXAA_QUALITY_P4 2.0\n    #define FXAA_QUALITY_P5 2.0\n    #define FXAA_QUALITY_P6 2.0\n    #define FXAA_QUALITY_P7 2.0\n    #define FXAA_QUALITY_P8 2.0\n    #define FXAA_QUALITY_P9 2.0\n    #define FXAA_QUALITY_P10 4.0\n    #define FXAA_QUALITY_P11 8.0\n#endif\n#if (FXAA_QUALITY_PRESET == 39)\n    #define FXAA_QUALITY_PS 12\n    #define FXAA_QUALITY_P0 1.0\n    #define FXAA_QUALITY_P1 1.0\n    #define FXAA_QUALITY_P2 1.0\n    #define FXAA_QUALITY_P3 1.0\n    #define FXAA_QUALITY_P4 1.0\n    #define FXAA_QUALITY_P5 1.5\n    #define FXAA_QUALITY_P6 2.0\n    #define FXAA_QUALITY_P7 2.0\n    #define FXAA_QUALITY_P8 2.0\n    #define FXAA_QUALITY_P9 2.0\n    #define FXAA_QUALITY_P10 4.0\n    #define FXAA_QUALITY_P11 8.0\n#endif\n\n#define FxaaBool bool\n#define FxaaFloat float\n#define FxaaFloat2 vec2\n#define FxaaFloat3 vec3\n#define FxaaFloat4 vec4\n#define FxaaHalf float\n#define FxaaHalf2 vec2\n#define FxaaHalf3 vec3\n#define FxaaHalf4 vec4\n#define FxaaInt2 vec2\n#define FxaaTex sampler2D\n\n#define FxaaSat(x) clamp(x, 0.0, 1.0)\n#define FxaaTexTop(t, p) texture2D(t, p)\n#define FxaaTexOff(t, p, o, r) texture2D(t, p + (o * r))\n\nFxaaFloat FxaaLuma_(FxaaFloat4 rgba) { return dot(rgba.rgb, vec3(0.2126, 0.7152, 0.0722)); }\n\nFxaaFloat4 FxaaPixelShader_(\n\n\n    FxaaFloat2 pos,\n\n\n\n\n    FxaaTex tex,\n\n\n\n\n    FxaaFloat2 fxaaQualityRcpFrame,\n\n\n\n\n\n\n\n\n\n\n    FxaaFloat fxaaQualitySubpix,\n\n\n\n\n\n\n\n\n\n    FxaaFloat fxaaQualityEdgeThreshold,\n\n\n\n\n\n\n\n\n\n\n\n\n\n    FxaaFloat fxaaQualityEdgeThresholdMin\n) {\n    FxaaFloat2 posM;\n    posM.x = pos.x;\n    posM.y = pos.y;\n    FxaaFloat4 rgbyM = FxaaTexTop(tex, posM);\n    #define lumaM rgbyM.y\n    FxaaFloat lumaS = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2( 0, 1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaE = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2( 1, 0), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaN = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2( 0,-1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaW = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2(-1, 0), fxaaQualityRcpFrame.xy));\n    FxaaFloat maxSM = max(lumaS, lumaM);\n    FxaaFloat minSM = min(lumaS, lumaM);\n    FxaaFloat maxESM = max(lumaE, maxSM);\n    FxaaFloat minESM = min(lumaE, minSM);\n    FxaaFloat maxWN = max(lumaN, lumaW);\n    FxaaFloat minWN = min(lumaN, lumaW);\n    FxaaFloat rangeMax = max(maxWN, maxESM);\n    FxaaFloat rangeMin = min(minWN, minESM);\n    FxaaFloat rangeMaxScaled = rangeMax * fxaaQualityEdgeThreshold;\n    FxaaFloat range = rangeMax - rangeMin;\n    FxaaFloat rangeMaxClamped = max(fxaaQualityEdgeThresholdMin, rangeMaxScaled);\n    FxaaBool earlyExit = range < rangeMaxClamped;\n    if(earlyExit)\n        return rgbyM;\n    FxaaFloat lumaNW = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2(-1,-1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaSE = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2( 1, 1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaNE = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2( 1,-1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaSW = FxaaLuma_(FxaaTexOff(tex, posM, FxaaInt2(-1, 1), fxaaQualityRcpFrame.xy));\n    FxaaFloat lumaNS = lumaN + lumaS;\n    FxaaFloat lumaWE = lumaW + lumaE;\n    FxaaFloat subpixRcpRange = 1.0/range;\n    FxaaFloat subpixNSWE = lumaNS + lumaWE;\n    FxaaFloat edgeHorz1 = (-2.0 * lumaM) + lumaNS;\n    FxaaFloat edgeVert1 = (-2.0 * lumaM) + lumaWE;\n    FxaaFloat lumaNESE = lumaNE + lumaSE;\n    FxaaFloat lumaNWNE = lumaNW + lumaNE;\n    FxaaFloat edgeHorz2 = (-2.0 * lumaE) + lumaNESE;\n    FxaaFloat edgeVert2 = (-2.0 * lumaN) + lumaNWNE;\n    FxaaFloat lumaNWSW = lumaNW + lumaSW;\n    FxaaFloat lumaSWSE = lumaSW + lumaSE;\n    FxaaFloat edgeHorz4 = (abs(edgeHorz1) * 2.0) + abs(edgeHorz2);\n    FxaaFloat edgeVert4 = (abs(edgeVert1) * 2.0) + abs(edgeVert2);\n    FxaaFloat edgeHorz3 = (-2.0 * lumaW) + lumaNWSW;\n    FxaaFloat edgeVert3 = (-2.0 * lumaS) + lumaSWSE;\n    FxaaFloat edgeHorz = abs(edgeHorz3) + edgeHorz4;\n    FxaaFloat edgeVert = abs(edgeVert3) + edgeVert4;\n    FxaaFloat subpixNWSWNESE = lumaNWSW + lumaNESE;\n    FxaaFloat lengthSign = fxaaQualityRcpFrame.x;\n    FxaaBool horzSpan = edgeHorz >= edgeVert;\n    FxaaFloat subpixA = subpixNSWE * 2.0 + subpixNWSWNESE;\n    if(!horzSpan) lumaN = lumaW;\n    if(!horzSpan) lumaS = lumaE;\n    if(horzSpan) lengthSign = fxaaQualityRcpFrame.y;\n    FxaaFloat subpixB = (subpixA * (1.0/12.0)) - lumaM;\n    FxaaFloat gradientN = lumaN - lumaM;\n    FxaaFloat gradientS = lumaS - lumaM;\n    FxaaFloat lumaNN = lumaN + lumaM;\n    FxaaFloat lumaSS = lumaS + lumaM;\n    FxaaBool pairN = abs(gradientN) >= abs(gradientS);\n    FxaaFloat gradient = max(abs(gradientN), abs(gradientS));\n    if(pairN) lengthSign = -lengthSign;\n    FxaaFloat subpixC = FxaaSat(abs(subpixB) * subpixRcpRange);\n    FxaaFloat2 posB;\n    posB.x = posM.x;\n    posB.y = posM.y;\n    FxaaFloat2 offNP;\n    offNP.x = (!horzSpan) ? 0.0 : fxaaQualityRcpFrame.x;\n    offNP.y = ( horzSpan) ? 0.0 : fxaaQualityRcpFrame.y;\n    if(!horzSpan) posB.x += lengthSign * 0.5;\n    if( horzSpan) posB.y += lengthSign * 0.5;\n    FxaaFloat2 posN;\n    posN.x = posB.x - offNP.x * FXAA_QUALITY_P0;\n    posN.y = posB.y - offNP.y * FXAA_QUALITY_P0;\n    FxaaFloat2 posP;\n    posP.x = posB.x + offNP.x * FXAA_QUALITY_P0;\n    posP.y = posB.y + offNP.y * FXAA_QUALITY_P0;\n    FxaaFloat subpixD = ((-2.0)*subpixC) + 3.0;\n    FxaaFloat lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN));\n    FxaaFloat subpixE = subpixC * subpixC;\n    FxaaFloat lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP));\n    if(!pairN) lumaNN = lumaSS;\n    FxaaFloat gradientScaled = gradient * 1.0/4.0;\n    FxaaFloat lumaMM = lumaM - lumaNN * 0.5;\n    FxaaFloat subpixF = subpixD * subpixE;\n    FxaaBool lumaMLTZero = lumaMM < 0.0;\n    lumaEndN -= lumaNN * 0.5;\n    lumaEndP -= lumaNN * 0.5;\n    FxaaBool doneN = abs(lumaEndN) >= gradientScaled;\n    FxaaBool doneP = abs(lumaEndP) >= gradientScaled;\n    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P1;\n    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P1;\n    FxaaBool doneNP = (!doneN) || (!doneP);\n    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P1;\n    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P1;\n    if(doneNP) {\n        if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n        if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n        doneN = abs(lumaEndN) >= gradientScaled;\n        doneP = abs(lumaEndP) >= gradientScaled;\n        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P2;\n        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P2;\n        doneNP = (!doneN) || (!doneP);\n        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P2;\n        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P2;\n        #if (FXAA_QUALITY_PS > 3)\n        if(doneNP) {\n            if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n            if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n            doneN = abs(lumaEndN) >= gradientScaled;\n            doneP = abs(lumaEndP) >= gradientScaled;\n            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P3;\n            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P3;\n            doneNP = (!doneN) || (!doneP);\n            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P3;\n            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P3;\n            #if (FXAA_QUALITY_PS > 4)\n            if(doneNP) {\n                if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                doneN = abs(lumaEndN) >= gradientScaled;\n                doneP = abs(lumaEndP) >= gradientScaled;\n                if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P4;\n                if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P4;\n                doneNP = (!doneN) || (!doneP);\n                if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P4;\n                if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P4;\n                #if (FXAA_QUALITY_PS > 5)\n                if(doneNP) {\n                    if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                    if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                    if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                    if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                    doneN = abs(lumaEndN) >= gradientScaled;\n                    doneP = abs(lumaEndP) >= gradientScaled;\n                    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P5;\n                    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P5;\n                    doneNP = (!doneN) || (!doneP);\n                    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P5;\n                    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P5;\n                    #if (FXAA_QUALITY_PS > 6)\n                    if(doneNP) {\n                        if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                        if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                        doneN = abs(lumaEndN) >= gradientScaled;\n                        doneP = abs(lumaEndP) >= gradientScaled;\n                        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P6;\n                        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P6;\n                        doneNP = (!doneN) || (!doneP);\n                        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P6;\n                        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P6;\n                        #if (FXAA_QUALITY_PS > 7)\n                        if(doneNP) {\n                            if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                            if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                            doneN = abs(lumaEndN) >= gradientScaled;\n                            doneP = abs(lumaEndP) >= gradientScaled;\n                            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P7;\n                            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P7;\n                            doneNP = (!doneN) || (!doneP);\n                            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P7;\n                            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P7;\n    #if (FXAA_QUALITY_PS > 8)\n    if(doneNP) {\n        if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n        if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n        doneN = abs(lumaEndN) >= gradientScaled;\n        doneP = abs(lumaEndP) >= gradientScaled;\n        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P8;\n        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P8;\n        doneNP = (!doneN) || (!doneP);\n        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P8;\n        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P8;\n        #if (FXAA_QUALITY_PS > 9)\n        if(doneNP) {\n            if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n            if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n            if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n            if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n            doneN = abs(lumaEndN) >= gradientScaled;\n            doneP = abs(lumaEndP) >= gradientScaled;\n            if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P9;\n            if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P9;\n            doneNP = (!doneN) || (!doneP);\n            if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P9;\n            if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P9;\n            #if (FXAA_QUALITY_PS > 10)\n            if(doneNP) {\n                if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                doneN = abs(lumaEndN) >= gradientScaled;\n                doneP = abs(lumaEndP) >= gradientScaled;\n                if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P10;\n                if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P10;\n                doneNP = (!doneN) || (!doneP);\n                if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P10;\n                if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P10;\n                #if (FXAA_QUALITY_PS > 11)\n                if(doneNP) {\n                    if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                    if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                    if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                    if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                    doneN = abs(lumaEndN) >= gradientScaled;\n                    doneP = abs(lumaEndP) >= gradientScaled;\n                    if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P11;\n                    if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P11;\n                    doneNP = (!doneN) || (!doneP);\n                    if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P11;\n                    if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P11;\n                    #if (FXAA_QUALITY_PS > 12)\n                    if(doneNP) {\n                        if(!doneN) lumaEndN = FxaaLuma_(FxaaTexTop(tex, posN.xy));\n                        if(!doneP) lumaEndP = FxaaLuma_(FxaaTexTop(tex, posP.xy));\n                        if(!doneN) lumaEndN = lumaEndN - lumaNN * 0.5;\n                        if(!doneP) lumaEndP = lumaEndP - lumaNN * 0.5;\n                        doneN = abs(lumaEndN) >= gradientScaled;\n                        doneP = abs(lumaEndP) >= gradientScaled;\n                        if(!doneN) posN.x -= offNP.x * FXAA_QUALITY_P12;\n                        if(!doneN) posN.y -= offNP.y * FXAA_QUALITY_P12;\n                        doneNP = (!doneN) || (!doneP);\n                        if(!doneP) posP.x += offNP.x * FXAA_QUALITY_P12;\n                        if(!doneP) posP.y += offNP.y * FXAA_QUALITY_P12;\n                    }\n                    #endif\n                }\n                #endif\n            }\n            #endif\n        }\n        #endif\n    }\n    #endif\n                        }\n                        #endif\n                    }\n                    #endif\n                }\n                #endif\n            }\n            #endif\n        }\n        #endif\n    }\n    FxaaFloat dstN = posM.x - posN.x;\n    FxaaFloat dstP = posP.x - posM.x;\n    if(!horzSpan) dstN = posM.y - posN.y;\n    if(!horzSpan) dstP = posP.y - posM.y;\n    FxaaBool goodSpanN = (lumaEndN < 0.0) != lumaMLTZero;\n    FxaaFloat spanLength = (dstP + dstN);\n    FxaaBool goodSpanP = (lumaEndP < 0.0) != lumaMLTZero;\n    FxaaFloat spanLengthRcp = 1.0/spanLength;\n    FxaaBool directionN = dstN < dstP;\n    FxaaFloat dst = min(dstN, dstP);\n    FxaaBool goodSpan = directionN ? goodSpanN : goodSpanP;\n    FxaaFloat subpixG = subpixF * subpixF;\n    FxaaFloat pixelOffset = (dst * (-spanLengthRcp)) + 0.5;\n    FxaaFloat subpixH = subpixG * fxaaQualitySubpix;\n    FxaaFloat pixelOffsetGood = goodSpan ? pixelOffset : 0.0;\n    FxaaFloat pixelOffsetSubpix = max(pixelOffsetGood, subpixH);\n    if(!horzSpan) posM.x += pixelOffsetSubpix * lengthSign;\n    if( horzSpan) posM.y += pixelOffsetSubpix * lengthSign;\n    return FxaaTexTop(tex, posM);\n}\n\nvec4 fxaa_sampleColor(sampler2D texture, vec2 texSize, vec2 texCoord) {\n    const float fxaa_QualitySubpix = 0.5;\n    const float fxaa_QualityEdgeThreshold = 0.125;\n    const float fxaa_QualityEdgeThresholdMin = 0.0833;\n\n    return FxaaPixelShader_(\n        texCoord,\n        texture,\n        vec2(1.0) / texSize,\n        fxaa_QualitySubpix,\n        fxaa_QualityEdgeThreshold,\n        fxaa_QualityEdgeThresholdMin\n    );\n}\n";
var fxaa = {
  name: 'fxaa',
  uniforms: {},
  fs: fs,
  passes: [{
    sampler: true
  }]
};
exports.fxaa = fxaa;
//# sourceMappingURL=fxaa.js.map