"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 ResizeBilinearProgram = /** @class */ (function () {
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function ResizeBilinearProgram(inputShape, newHeight, newWidth, alignCorners) {
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this.variableNames = ['A'];
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this.outputShape = [];
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var batch = inputShape[0], oldHeight = inputShape[1], oldWidth = inputShape[2], depth = inputShape[3];
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this.outputShape = [batch, newHeight, newWidth, depth];
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var effectiveInSize = [
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(alignCorners && newHeight > 1) ? oldHeight - 1 : oldHeight,
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(alignCorners && newWidth > 1) ? oldWidth - 1 : oldWidth
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];
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var effectiveOutSize = [
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(alignCorners && newHeight > 1) ? newHeight - 1 : newHeight,
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(alignCorners && newWidth > 1) ? newWidth - 1 : newWidth
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];
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this.userCode = "\n const vec2 effectiveInputOverOutputRatioRC = vec2(\n " + effectiveInSize[0] / effectiveOutSize[0] + ",\n " + effectiveInSize[1] / effectiveOutSize[1] + ");\n const vec2 inputShapeRC = vec2(" + oldHeight + ".0, " + oldWidth + ".0);\n\n void main() {\n ivec4 coords = getOutputCoords();\n int b = coords[0];\n int d = coords[3];\n ivec2 yRC = coords.yz;\n\n // Fractional source index.\n vec2 sourceFracIndexRC = vec2(yRC) * effectiveInputOverOutputRatioRC;\n\n // Compute the four integer indices.\n ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);\n ivec2 sourceCeilRC = ivec2(\n min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));\n\n float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);\n float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);\n float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);\n float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);\n\n vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);\n\n float top = topLeft + (topRight - topLeft) * fracRC.y;\n float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;\n float newValue = top + (bottom - top) * fracRC.x;\n\n setOutput(newValue);\n }\n ";
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}
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return ResizeBilinearProgram;
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}());
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exports.ResizeBilinearProgram = ResizeBilinearProgram;
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//# sourceMappingURL=resize_bilinear_gpu.js.map
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