"use strict";
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/**
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* @license
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* Copyright 2017 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 Conv2DDerFilterProgram = /** @class */ (function () {
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function Conv2DDerFilterProgram(convInfo) {
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this.variableNames = ['x', 'dy'];
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this.outputShape = convInfo.filterShape;
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var strideHeight = convInfo.strideHeight;
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var strideWidth = convInfo.strideWidth;
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var padTop = convInfo.padInfo.top;
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var padLeft = convInfo.padInfo.left;
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var isChannelsLast = convInfo.dataFormat === 'channelsLast';
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this.userCode = "\n void main() {\n ivec4 coords = getOutputCoords();\n int wR = coords.x;\n int wC = coords.y;\n int d1 = coords.z;\n int d2 = coords.w;\n\n // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n\n for (int b = 0; b < " + convInfo.batchSize + "; b++) {\n for (int yR = 0; yR < " + convInfo.outHeight + "; yR++) {\n int xR = wR + yR * " + strideHeight + " - " + padTop + ";\n\n if (xR < 0 || xR >= " + convInfo.inHeight + ") {\n continue;\n }\n\n for (int yC = 0; yC < " + convInfo.outWidth + "; yC++) {\n int xC = wC + yC * " + strideWidth + " - " + padLeft + ";\n\n if (xC < 0 || xC >= " + convInfo.inWidth + ") {\n continue;\n }\n\n if (" + isChannelsLast + ") {\n float dyValue = getDy(b, yR, yC, d2);\n float xValue = getX(b, xR, xC, d1);\n dotProd += (xValue * dyValue);\n } else {\n float dyValue = getDy(b, d2, yR, yC);\n float xValue = getX(b, d1, xR, xC);\n dotProd += (xValue * dyValue);\n }\n\n }\n }\n }\n setOutput(dotProd);\n }\n ";
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}
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return Conv2DDerFilterProgram;
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}());
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exports.Conv2DDerFilterProgram = Conv2DDerFilterProgram;
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var Conv2DDerInputProgram = /** @class */ (function () {
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function Conv2DDerInputProgram(convInfo) {
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this.variableNames = ['dy', 'W'];
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this.outputShape = convInfo.inShape;
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var filterHeight = convInfo.filterHeight;
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var filterWidth = convInfo.filterWidth;
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var strideHeight = convInfo.strideHeight;
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var strideWidth = convInfo.strideWidth;
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var isChannelsLast = convInfo.dataFormat === 'channelsLast';
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var padTop = filterHeight - 1 - convInfo.padInfo.top;
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var padLeft = filterWidth - 1 - convInfo.padInfo.left;
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var rowDim = isChannelsLast ? 1 : 2;
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var colDim = isChannelsLast ? 2 : 3;
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var channelDim = isChannelsLast ? 3 : 1;
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this.userCode = "\n const ivec2 pads = ivec2(" + padTop + ", " + padLeft + ");\n\n void main() {\n ivec4 coords = getOutputCoords();\n int batch = coords[0];\n int d1 = coords[" + channelDim + "];\n\n ivec2 dyCorner = ivec2(coords[" + rowDim + "], coords[" + colDim + "]) - pads;\n int dyRCorner = dyCorner.x;\n int dyCCorner = dyCorner.y;\n\n // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).\n // ? = to be determined. : = across all values in that axis.\n float dotProd = 0.0;\n for (int wR = 0; wR < " + filterHeight + "; wR++) {\n float dyR = float(dyRCorner + wR) / " + strideHeight + ".0;\n\n if (dyR < 0.0 || dyR >= " + convInfo.outHeight + ".0 || fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n int wRPerm = " + filterHeight + " - 1 - wR;\n\n for (int wC = 0; wC < " + filterWidth + "; wC++) {\n float dyC = float(dyCCorner + wC) / " + strideWidth + ".0;\n\n if (dyC < 0.0 || dyC >= " + convInfo.outWidth + ".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n int wCPerm = " + filterWidth + " - 1 - wC;\n\n for (int d2 = 0; d2 < " + convInfo.outChannels + "; d2++) {\n\n if (" + isChannelsLast + ") {\n float xValue = getDy(batch, idyR, idyC, d2);\n float wValue = getW(wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n } else {\n float xValue = getDy(batch, d2, idyR, idyC);\n float wValue = getW(wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n }\n\n }\n }\n }\n setOutput(dotProd);\n }\n ";
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}
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return Conv2DDerInputProgram;
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}());
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exports.Conv2DDerInputProgram = Conv2DDerInputProgram;
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var Conv3DDerFilterProgram = /** @class */ (function () {
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function Conv3DDerFilterProgram(convInfo) {
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this.variableNames = ['x', 'dy'];
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this.outputShape = convInfo.filterShape;
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var strideDepth = convInfo.strideDepth;
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var strideHeight = convInfo.strideHeight;
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var strideWidth = convInfo.strideWidth;
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var padFront = convInfo.padInfo.front;
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var padTop = convInfo.padInfo.top;
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var padLeft = convInfo.padInfo.left;
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this.userCode = "\n void main() {\n ivec5 coords = getOutputCoords();\n int wF = coords.x;\n int wR = coords.y;\n int wC = coords.z;\n int d1 = coords.w;\n int d2 = coords.u;\n\n float dotProd = 0.0;\n\n for (int b = 0; b < " + convInfo.batchSize + "; b++) {\n for (int yF = 0; yF < " + convInfo.outDepth + "; yF++) {\n int xF = wF + yF * " + strideDepth + " - " + padFront + ";\n\n if (xF < 0 || xF >= " + convInfo.inDepth + ") {\n continue;\n }\n\n for (int yR = 0; yR < " + convInfo.outHeight + "; yR++) {\n int xR = wR + yR * " + strideHeight + " - " + padTop + ";\n\n if (xR < 0 || xR >= " + convInfo.inHeight + ") {\n continue;\n }\n\n for (int yC = 0; yC < " + convInfo.outWidth + "; yC++) {\n int xC = wC + yC * " + strideWidth + " - " + padLeft + ";\n\n if (xC < 0 || xC >= " + convInfo.inWidth + ") {\n continue;\n }\n\n float dyValue = getDy(b, yF, yR, yC, d2);\n float xValue = getX(b, xF, xR, xC, d1);\n dotProd += (xValue * dyValue);\n }\n }\n }\n }\n setOutput(dotProd);\n }\n ";
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}
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return Conv3DDerFilterProgram;
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}());
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exports.Conv3DDerFilterProgram = Conv3DDerFilterProgram;
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var Conv3DDerInputProgram = /** @class */ (function () {
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function Conv3DDerInputProgram(convInfo) {
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this.variableNames = ['dy', 'W'];
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this.outputShape = convInfo.inShape;
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var filterDepth = convInfo.filterDepth;
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var filterHeight = convInfo.filterHeight;
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var filterWidth = convInfo.filterWidth;
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var strideDepth = convInfo.strideDepth;
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var strideHeight = convInfo.strideHeight;
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var strideWidth = convInfo.strideWidth;
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var padFront = filterDepth - 1 - convInfo.padInfo.front;
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var padTop = filterHeight - 1 - convInfo.padInfo.top;
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var padLeft = filterWidth - 1 - convInfo.padInfo.left;
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this.userCode = "\n const ivec3 pads = ivec3(" + padFront + ", " + padTop + ", " + padLeft + ");\n\n void main() {\n ivec5 coords = getOutputCoords();\n int batch = coords.x;\n int d1 = coords.u;\n\n\n ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;\n int dyFCorner = dyCorner.x;\n int dyRCorner = dyCorner.y;\n int dyCCorner = dyCorner.z;\n\n float dotProd = 0.0;\n for (int wF = 0; wF < " + filterDepth + "; wF++) {\n float dyF = float(dyFCorner + wF) / " + strideDepth + ".0;\n\n if (dyF < 0.0 || dyF >= " + convInfo.outDepth + ".0 || fract(dyF) > 0.0) {\n continue;\n }\n int idyF = int(dyF);\n\n int wFPerm = " + filterDepth + " - 1 - wF;\n\n for (int wR = 0; wR < " + filterHeight + "; wR++) {\n float dyR = float(dyRCorner + wR) / " + strideHeight + ".0;\n\n if (dyR < 0.0 || dyR >= " + convInfo.outHeight + ".0 ||\n fract(dyR) > 0.0) {\n continue;\n }\n int idyR = int(dyR);\n\n int wRPerm = " + filterHeight + " - 1 - wR;\n\n for (int wC = 0; wC < " + filterWidth + "; wC++) {\n float dyC = float(dyCCorner + wC) / " + strideWidth + ".0;\n\n if (dyC < 0.0 || dyC >= " + convInfo.outWidth + ".0 ||\n fract(dyC) > 0.0) {\n continue;\n }\n int idyC = int(dyC);\n\n int wCPerm = " + filterWidth + " - 1 - wC;\n\n for (int d2 = 0; d2 < " + convInfo.outChannels + "; d2++) {\n float xValue = getDy(batch, idyF, idyR, idyC, d2);\n float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);\n dotProd += xValue * wValue;\n }\n }\n }\n }\n setOutput(dotProd);\n }\n ";
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}
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return Conv3DDerInputProgram;
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}());
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exports.Conv3DDerInputProgram = Conv3DDerInputProgram;
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//# sourceMappingURL=conv_backprop_gpu.js.map
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