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Add an option to enable/disable hardware acceleration (bug 1902012)

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This commit is contained in:
Calixte Denizet 2024-06-12 12:51:51 +02:00
parent 341ff40e74
commit ff6180a4c9
13 changed files with 62 additions and 12 deletions
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10
web/pdf_page_view.js
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@ -81,6 +81,8 @@ import { XfaLayerBuilder } from "./xfa_layer_builder.js";
* @property {IL10n} [l10n] - Localization service.
* @property {Object} [layerProperties] - The object that is used to lookup
* the necessary layer-properties.
* @property {boolean} [enableHWA] - Enables hardware acceleration for
* rendering. The default value is `false`.
*/
const DEFAULT_LAYER_PROPERTIES =
@ -113,6 +115,8 @@ const LAYERS_ORDER = new Map([
class PDFPageView {
#annotationMode = AnnotationMode.ENABLE_FORMS;
#enableHWA = false;
#hasRestrictedScaling = false;
#layerProperties = null;
@ -163,6 +167,7 @@ class PDFPageView {
this.maxCanvasPixels =
options.maxCanvasPixels ?? AppOptions.get("maxCanvasPixels");
this.pageColors = options.pageColors || null;
this.#enableHWA = options.enableHWA || false;
this.eventBus = options.eventBus;
this.renderingQueue = options.renderingQueue;
@ -981,7 +986,10 @@ class PDFPageView {
canvasWrapper.append(canvas);
this.canvas = canvas;
const ctx = canvas.getContext("2d", { alpha: false });
const ctx = canvas.getContext("2d", {
alpha: false,
willReadFrequently: !this.#enableHWA,
});
const outputScale = (this.outputScale = new OutputScale());
if (