"use strict";
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/**
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* @license
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* Copyright 2019 Google LLC. 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 environment_1 = require("../../../environment");
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var kernel_names_1 = require("../../../kernel_names");
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var tex_util_1 = require("../tex_util");
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var from_pixels_gpu_1 = require("./FromPixels_utils/from_pixels_gpu");
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var from_pixels_packed_gpu_1 = require("./FromPixels_utils/from_pixels_packed_gpu");
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exports.fromPixelsConfig = {
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kernelName: kernel_names_1.FromPixels,
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backendName: 'webgl',
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kernelFunc: fromPixels,
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};
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var fromPixels2DContext;
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function fromPixels(args) {
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var inputs = args.inputs, backend = args.backend, attrs = args.attrs;
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var pixels = inputs.pixels;
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var numChannels = attrs.numChannels;
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var isVideo = typeof (HTMLVideoElement) !== 'undefined' &&
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pixels instanceof HTMLVideoElement;
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var isImage = typeof (HTMLImageElement) !== 'undefined' &&
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pixels instanceof HTMLImageElement;
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var _a = isVideo ?
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[
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pixels.videoWidth,
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pixels.videoHeight
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] :
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[pixels.width, pixels.height], width = _a[0], height = _a[1];
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var texShape = [height, width];
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var outShape = [height, width, numChannels];
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if (isImage || isVideo) {
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if (fromPixels2DContext == null) {
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fromPixels2DContext = document.createElement('canvas').getContext('2d');
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}
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fromPixels2DContext.canvas.width = width;
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fromPixels2DContext.canvas.height = height;
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fromPixels2DContext.drawImage(pixels, 0, 0, width, height);
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pixels = fromPixels2DContext.canvas;
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}
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var tempPixelHandle = backend.makeTensorInfo(texShape, 'int32');
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// This is a byte texture with pixels.
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backend.texData.get(tempPixelHandle.dataId).usage = tex_util_1.TextureUsage.PIXELS;
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backend.gpgpu.uploadPixelDataToTexture(backend.getTexture(tempPixelHandle.dataId), pixels);
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var program = environment_1.env().getBool('WEBGL_PACK') ?
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new from_pixels_packed_gpu_1.FromPixelsPackedProgram(outShape) :
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new from_pixels_gpu_1.FromPixelsProgram(outShape);
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var res = backend.runWebGLProgram(program, [tempPixelHandle], 'int32');
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backend.disposeData(tempPixelHandle.dataId);
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return res;
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}
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//# sourceMappingURL=FromPixels.js.map
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