fc055dbd80
This patch extends PR 16115 to work in all browsers, regardless of their `OffscreenCanvas` support, such that transfer functions will be applied to general rendering (and not just image data). In order to do this we introduce the `BaseFilterFactory` that is then extended in browsers/Node.js environments, similar to all the other factories used in the API, such that we always have the necessary factory available in `src/display/canvas.js`. These changes help simplify the existing `putBinaryImageData` function, and the new method can easily be stubbed-out in the Firefox PDF Viewer. *Please note:* This patch removes the old *partial* transfer function support, which only applied to image data, from Node.js environments since the `node-canvas` package currently doesn't support filters. However, this should hopefully be fine given that: - Transfer functions are not very commonly used in PDF documents. - Browsers in general, and Firefox in particular, are the *primary* development target for the PDF.js library. - The FAQ only lists Node.js as *mostly* supported, see https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#faq-support
122 lines
3.4 KiB
JavaScript
122 lines
3.4 KiB
JavaScript
/* Copyright 2012 Mozilla Foundation
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*
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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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// eslint-disable-next-line max-len
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/** @typedef {import("./display/api").OnProgressParameters} OnProgressParameters */
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// eslint-disable-next-line max-len
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/** @typedef {import("./display/api").PDFDocumentLoadingTask} PDFDocumentLoadingTask */
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/** @typedef {import("./display/api").PDFDocumentProxy} PDFDocumentProxy */
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/** @typedef {import("./display/api").PDFPageProxy} PDFPageProxy */
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/** @typedef {import("./display/api").RenderTask} RenderTask */
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/** @typedef {import("./display/display_utils").PageViewport} PageViewport */
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// eslint-disable-next-line max-len
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/** @typedef {import("./display/text_layer").TextLayerRenderTask} TextLayerRenderTask */
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import {
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AbortException,
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AnnotationEditorParamsType,
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AnnotationEditorType,
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AnnotationMode,
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CMapCompressionType,
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createPromiseCapability,
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createValidAbsoluteUrl,
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FeatureTest,
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InvalidPDFException,
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MissingPDFException,
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OPS,
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PasswordResponses,
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PermissionFlag,
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shadow,
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UnexpectedResponseException,
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Util,
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VerbosityLevel,
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} from "./shared/util.js";
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import {
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build,
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getDocument,
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PDFDataRangeTransport,
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PDFWorker,
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version,
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} from "./display/api.js";
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import {
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getFilenameFromUrl,
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getPdfFilenameFromUrl,
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getXfaPageViewport,
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isDataScheme,
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isPdfFile,
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loadScript,
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PDFDateString,
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PixelsPerInch,
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RenderingCancelledException,
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setLayerDimensions,
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} from "./display/display_utils.js";
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import { renderTextLayer, updateTextLayer } from "./display/text_layer.js";
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import { AnnotationEditorLayer } from "./display/editor/annotation_editor_layer.js";
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import { AnnotationEditorUIManager } from "./display/editor/tools.js";
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import { AnnotationLayer } from "./display/annotation_layer.js";
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import { GlobalWorkerOptions } from "./display/worker_options.js";
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import { SVGGraphics } from "./display/svg.js";
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import { XfaLayer } from "./display/xfa_layer.js";
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/* eslint-disable-next-line no-unused-vars */
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const pdfjsVersion =
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typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_VERSION") : void 0;
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/* eslint-disable-next-line no-unused-vars */
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const pdfjsBuild =
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typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_BUILD") : void 0;
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export {
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AbortException,
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AnnotationEditorLayer,
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AnnotationEditorParamsType,
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AnnotationEditorType,
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AnnotationEditorUIManager,
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AnnotationLayer,
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AnnotationMode,
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build,
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CMapCompressionType,
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createPromiseCapability,
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createValidAbsoluteUrl,
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FeatureTest,
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getDocument,
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getFilenameFromUrl,
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getPdfFilenameFromUrl,
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getXfaPageViewport,
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GlobalWorkerOptions,
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InvalidPDFException,
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isDataScheme,
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isPdfFile,
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loadScript,
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MissingPDFException,
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OPS,
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PasswordResponses,
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PDFDataRangeTransport,
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PDFDateString,
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PDFWorker,
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PermissionFlag,
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PixelsPerInch,
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RenderingCancelledException,
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renderTextLayer,
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setLayerDimensions,
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shadow,
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SVGGraphics,
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UnexpectedResponseException,
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updateTextLayer,
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Util,
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VerbosityLevel,
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version,
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XfaLayer,
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};
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