"use strict";
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/**
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* @license
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* Copyright 2019 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 packing_util_1 = require("../packing_util");
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var shader_compiler_1 = require("./shader_compiler");
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var PadPackedProgram = /** @class */ (function () {
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function PadPackedProgram(xShape, paddings, constantValue) {
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this.variableNames = ['x'];
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this.packedInputs = true;
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this.packedOutput = true;
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this.outputShape = paddings.map(function (p, i) { return p[0] /* beforePad */ + xShape[i] + p[1]; } /* afterPad */);
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var rank = xShape.length;
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var dtype = shader_compiler_1.getCoordsDataType(rank);
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var start = paddings.map(function (p) { return p[0]; }).join(',');
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var end = paddings.map(function (p, i) { return p[0] + xShape[i]; }).join(',');
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var coords = packing_util_1.getChannels('rc', rank);
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var source = packing_util_1.getChannels('source', rank);
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var cLimit = coords[rank - 1] + " < " + this.outputShape[rank - 1];
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var innerDims = rank === 1 ? 'source' : "vec2(" + source.slice(-2).join() + ")";
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var componentSetup = [
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dtype + " rc = outputLoc;", coords[rank - 1] + " += 1;\n if(" + cLimit + ") {\n ",
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rank === 1 ? '' : "}\n rc = outputLoc;\n " + coords[rank - 2] + " += 1;\n if(" + coords[rank - 2] + " < " + this.outputShape[rank - 2] + ") {",
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rank === 1 ? '' : " " + coords[rank - 1] + " += 1;\n if(" + cLimit + ") {"
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];
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var paddingArea = rank === 1 ?
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'rc < start || rc >= end' :
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'any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))';
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var mainLoop = '';
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for (var i = 0, j = rank === 1 ? 2 : 4; i < j; i++) {
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mainLoop += "\n " + componentSetup[i] + "\n if (" + paddingArea + ") {\n result[" + i + "] = float(" + constantValue + ");\n } else {\n " + dtype + " source = rc - start;\n result[" + i + "] = getChannel(getX(" + source.join() + "), " + innerDims + ");\n }\n ";
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}
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mainLoop += (rank === 1 ? "} " : "}}");
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this.userCode = "\n const " + dtype + " start = " + dtype + "(" + start + ");\n const " + dtype + " end = " + dtype + "(" + end + ");\n\n void main() {\n " + dtype + " outputLoc = getOutputCoords();\n vec4 result = vec4(0.);\n " + mainLoop + "\n setOutput(result);\n }\n ";
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}
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return PadPackedProgram;
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}());
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exports.PadPackedProgram = PadPackedProgram;
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//# sourceMappingURL=pad_packed_gpu.js.map
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