"use strict";
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/**
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* @license
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* Copyright 2018 Google Inc. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var shader_compiler_1 = require("./shader_compiler");
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var CumSumProgram = /** @class */ (function () {
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function CumSumProgram(shape, exclusive, reverse) {
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this.variableNames = ['x'];
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this.outputShape = shape;
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var rank = shape.length;
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var finalDim = shape[shape.length - 1];
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var comparator = reverse ? '<' : '>';
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this.userCode = "\n int getIndex(int i) {\n " + (reverse ? "return " + finalDim + " -i - 1;" : 'return i;') + "\n }\n\n void main() {\n " + shader_compiler_1.getCoordsDataType(rank) + " coords = getOutputCoords();\n int end = " + getFinalCoord(rank, 'coords') + ";\n float val = 0.0;\n for (int i = " + finalDim + " - 1; i >= 0; i -= 1) {\n int idx = getIndex(i);\n if (idx " + comparator + " end) {\n continue;\n }\n if (idx == end && " + exclusive + ") {\n continue;\n }\n " + getFinalCoord(rank, 'coords') + " = idx;\n val += getX(" + getCoords(rank, 'coords') + ");\n }\n setOutput(val);\n }\n ";
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}
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return CumSumProgram;
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}());
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exports.CumSumProgram = CumSumProgram;
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function getCoords(rank, name) {
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if (rank === 1) {
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return "" + name;
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}
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else if (rank === 2) {
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return name + ".x, " + name + ".y";
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}
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else if (rank === 3) {
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return name + ".x, " + name + ".y, " + name + ".z";
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}
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else if (rank === 4) {
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return name + ".x, " + name + ".y, " + name + ".z, " + name + ".w";
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}
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else {
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throw Error("Cumulative sum for rank " + rank + " is not yet supported");
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}
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}
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function getFinalCoord(rank, name) {
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if (rank === 1) {
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return "" + name;
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}
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else if (rank === 2) {
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return name + ".y";
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}
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else if (rank === 3) {
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return name + ".z";
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}
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else if (rank === 4) {
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return name + ".w";
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}
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else {
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throw Error("Cumulative sum for rank " + rank + " is not yet supported");
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}
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}
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//# sourceMappingURL=cumsum_gpu.js.map
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