@tensorflow/tfjs-core
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Hardware-accelerated JavaScript library for machine intelligence
36 lines • 2.26 kB
JavaScript
;
/**
* @license
* Copyright 2019 Google LLC. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
Object.defineProperty(exports, "__esModule", { value: true });
var glsl_version_1 = require("./glsl_version");
var shader_util = require("./shader_compiler_util");
var tex_util_1 = require("./tex_util");
var DecodeMatrixPackedProgram = /** @class */ (function () {
function DecodeMatrixPackedProgram(outputShape) {
this.variableNames = ['A'];
this.packedInputs = true;
this.packedOutput = true;
this.outPackingScheme = tex_util_1.PackingScheme.DENSE;
var texShape = tex_util_1.getDenseTexShape(outputShape);
var glsl = glsl_version_1.getGlslDifferences();
this.outputShape = outputShape;
this.userCode = "\n ivec3 outCoordsFromFlatIndex(int index) {\n " + shader_util.getLogicalCoordinatesFromFlatIndex(['r', 'c', 'd'], outputShape) + "\n return ivec3(r, c, d);\n }\n\n void main() {\n ivec2 resTexRC = ivec2(resultUV.yx *\n vec2(" + texShape[0] + ", " + texShape[1] + "));\n int index = 4 * (resTexRC.x * " + texShape[1] + " + resTexRC.y);\n\n vec4 result = vec4(0.);\n\n for (int i=0; i<4; i++) {\n int flatIndex = index + i;\n ivec3 rc = outCoordsFromFlatIndex(flatIndex);\n result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));\n }\n\n " + glsl.output + " = result;\n }\n ";
}
return DecodeMatrixPackedProgram;
}());
exports.DecodeMatrixPackedProgram = DecodeMatrixPackedProgram;
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